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https://en.wikipedia.org/wiki/Apollo%209

Apollo 9

Apollo 9 (March 313, 1969) was the third human spaceflight in NASA's Apollo program. Flown in low Earth orbit, it was the second crewed Apollo mission that the United States launched via a Saturn V rocket, and was the first flight of the full Apollo spacecraft: the command and service module (CSM) with the Lunar Module (LM). The mission was flown to qualify the LM for lunar orbit operations in preparation for the first Moon landing by demonstrating its descent and ascent propulsion systems, showing that its crew could fly it independently, then rendezvous and dock with the CSM again, as would be required for the first crewed lunar landing. Other objectives of the flight included firing the LM descent engine to propel the spacecraft stack as a backup mode (as would be required on the Apollo 13 mission), and use of the portable life support system backpack outside the LM cabin. The three-man crew consisted of Commander James McDivitt, Command Module Pilot David Scott, and Lunar Module Pilot Rusty Schweickart. During the ten-day mission, they tested systems and procedures critical to landing on the Moon, including the LM engines, backpack life support systems, navigation systems and docking maneuvers. After launching on March 3, 1969, the crew performed the first crewed flight of a lunar module, the first docking and extraction of the same, one two-person spacewalk (EVA), and the second docking of two crewed spacecraft—two months after the Soviets performed a spacewalk crew transfer between and . The mission concluded on March 13 and was a complete success. It proved the LM worthy of crewed spaceflight, setting the stage for the dress rehearsal for the lunar landing, Apollo 10, before the ultimate goal, landing on the Moon. Mission background In April 1966, McDivitt, Scott, and Schweickart were selected by Director of Flight Crew Operations Deke Slayton as the second Apollo crew. Their initial job was as backup to the first Apollo crew to be chosen, Gus Grissom, Ed White, and Roger Chaffee, for the first crewed Earth orbital test flight of the block I command and service module, designated AS-204. Delays in the block I CSM development pushed AS-204 into 1967. The revised plan had the McDivitt crew scheduled for the second crewed CSM, which was to rendezvous in Earth orbit with an uncrewed LM, launched separately. The third crewed mission, to be commanded by Frank Borman, was to be the first launch of a SaturnV with a crew. On January 27, 1967, Grissom's crew was conducting a launch-pad test for their planned February 21 mission, which they named Apollo 1, when a fire broke out in the cabin, killing all three men. A complete safety review of the Apollo program followed. During this time Apollo 5 took place, an uncrewed launch to test the first lunar module (LM-1). Under the new schedule, the first Apollo crewed mission to go into space would be Apollo 7, planned for October 1968. This mission, which was to test the block II command module, did not include a lunar module. In 1967, NASA had adopted a series of lettered missions leading up to the crewed lunar landing, the "G mission", completion of one being a prerequisite to the next. Apollo7 would be the "Cmission", but the "Dmission" required testing of the crewed lunar module, which was running behind schedule and endangering John F. Kennedy's goal of Americans walking on the Moon and returning safely to Earth by the end of the 1960s. McDivitt's crew had been announced by NASA in November 1967 as prime crew for the Dmission, lengthy testing of the command and lunar modules in Earth orbit. Seeking to keep Kennedy's goal on schedule, in August 1968, Apollo Program Manager George M. Low proposed that if Apollo7 in October went well, Apollo8 would go to lunar orbit without a LM. Until then, Apollo8 was the Dmission with Apollo9 the "E mission", testing in medium Earth orbit. After NASA approved sending Apollo8 to the Moon, while making Apollo9 the Dmission, Slayton offered McDivitt the opportunity to stay with Apollo8 and thus go to lunar orbit. McDivitt turned it down on behalf of his crew, preferring to stay with the Dmission, now Apollo9. Apollo7 went well, and the crews were switched. The crew swap also affected who would be the first astronauts to land on the Moon, for when the crews for Apollo8 and9 were swapped, so were the backup crews. Since the rule of thumb was for backup crews to fly as prime crew three missions later, this put Neil Armstrong's crew (Borman's backup) in position to make the first landing attempt on Apollo 11 instead of Pete Conrad's crew, who made the second landing on Apollo 12. Framework Crew and key Mission Control personnel McDivitt was in the Air Force; selected as a member of the second group of astronauts in 1962, he was command pilot of Gemini 4 (1965). Scott, also Air Force, was selected in the third astronaut group in 1963 and flew alongside Neil Armstrong in Gemini 8, on which the first spacecraft docking was performed. Schweickart, a civilian who had served in the Air Force and Massachusetts Air National Guard, was selected as a Group3 astronaut but was not assigned to a Gemini mission and had no spaceflight experience. The backup crew consisted of Pete Conrad as commander, Command Module Pilot Richard F. Gordon Jr., and Lunar Module Pilot Alan L. Bean. This crew flew as prime on Apollo 12 in November 1969. The support crew for Apollo9 consisted of Stuart A. Roosa, Jack R. Lousma, Edgar D. Mitchell and Alfred M. Worden. Lousma was not an original member of the Apollo9 support crew, but was assigned after Fred W. Haise Jr. was moved to the position of backup lunar module pilot on Apollo 8—several astronauts were shifted in the wake of Michael Collins being removed from the Apollo8 prime crew because of treatment for bone spurs. The flight directors were Gene Kranz, first shift, Gerry Griffin, second shift and Pete Frank, third shift. Capsule communicators were Conrad, Gordon, Bean, Worden, Roosa and Ronald Evans. Mission insignia The circular patch shows a drawing of a Saturn V rocket with the letters USA on it. To its right, an Apollo CSM is shown next to a LM, with the CSM's nose pointed at the "front door" of the LM rather than at its top docking port. The CSM is trailing rocket fire in a circle. The crew's names are along the top edge of the circle, with APOLLO IX at the bottom. The "D" in McDivitt's name is filled with red to mark that this was the "Dmission" in the alphabetic sequence of Apollo missions. The patch was designed by Allen Stevens of Rockwell International. Planning and training Apollo 9's main purpose was to qualify the LM for crewed lunar flight, demonstrating, among other things, that it could perform the maneuvers in space that would be needed for a lunar landing, including docking with the CSM. Colin Burgess and Francis French, in their book about the Apollo Program, deemed McDivitt's crew among the best trained ever—they had worked together since January 1966, at first as backups for Apollo 1, and they always had the assignment of being the first to fly the LM. Flight Director Gene Kranz deemed the Apollo9 crew the best prepared for their mission, and felt Scott was an extremely knowledgeable CMP. Crew members underwent some 1,800 hours of mission-specific training, about seven hours for every hour they would spend in flight. Their training even started on the day before the Apollo1 fire, in the very first Block II spacecraft in which they were originally intended to fly. They took part in the vehicle checkouts for the CSM at North American Rockwell's facility in Downey, California, and for the LM at Grumman's plant in Bethpage, New York. They also participated in testing of the modules at the launch site. Among the types of the training which the crew underwent were simulations of zero-G, both underwater and in the Vomit Comet. During these exercises, they practiced for the planned extravehicular activities (EVAs). They traveled to Cambridge, Massachusetts, for training on the Apollo Guidance Computer (AGC) at MIT. The crew studied the sky at the Morehead Planetarium and at the Griffith Planetarium, especially focusing on the 37 stars used by the AGC. They each spent more than 300 hours in the CM and LM simulators at Kennedy Space Center (KSC) and at Houston, some involving live participation by Mission Control. Additional time was spent in simulators in other locations. The first mission to use the CSM, the LM and a SaturnV, Apollo9 allowed the launch preparations team at KSC its first opportunity to simulate the launch of a lunar landing mission. The LM arrived from Grumman in June 1968 and was subjected to extensive testing including in the altitude chamber, simulating space conditions. As this occurred, other technicians assembled the SaturnV inside the Vehicle Assembly Building (VAB). The CM and SM arrived in October, but even the experienced KSC team from North American had trouble joining them together. When the lander was done with the altitude chamber, the CSM took its place, letting the LM be available for installation of equipment such as rendezvous radar and antennas. There were no lengthy delays, and on January 3, 1969, the launch vehicle was taken out of the VAB and moved to Launch Complex 39A by crawler. Flight readiness reviews for the CM, the LM, and the SaturnV were held and passed in the following weeks. Hardware Launch vehicle The Saturn V (AS-504) used on Apollo9 was the fourth to be flown, the second to carry astronauts to space, and the first to bear a lunar module. Although similar in configuration to the SaturnV used on Apollo 8, several changes were made. The inner core of the F-1 engine chamber in the first (S-IC) stage was removed, thus saving weight and allowing for a slight increase in specific impulse. Weight was also saved by replacing the skins of the liquid oxygen tanks with lighter ones, and by providing lighter versions of other components. Efficiency was increased in the S-II second stage with uprated J-2 engines, and through a closed-loop propellant utilization system rather than Apollo 8's open-loop system. Of the weight reduction in the second stage, about half came from a 16 percent reduction in the thickness of the tank side walls. Spacecraft, equipment and call signs Apollo9 used CSM-104, the third Block II CSM to be flown with astronauts aboard. Apollo 8, lacking a lunar module, did not have docking equipment; Apollo9 flew the probe-and-drogue assembly used for docking along with other equipment added near the forward hatch of the CM; this allowed for rigid docking of the two craft, and for internal transfer between CM and LM. Had the switch in missions between Apollo8 and9 not occurred, the Earth-orbit mission would have flown CSM-103, which flew on Apollo 8. The Earth-orbit mission was originally supposed to use LM-2 as its lunar module, but the crew found numerous flaws in it, many associated with it being the first flight-ready lunar module off Grumman's production line. The delay occasioned by the switch in missions allowed LM-3 to be available, a machine the crew found far superior. Neither LM-2 nor LM-3 could have been sent to the Moon as both were too heavy; Grumman's weight reduction program for the LMs only became fully effective with LM-5, designated for Apollo 11. Small cracks in LM-3's aluminum alloy structure due to stresses such as the insertion of a rivet proved an ongoing issue; Grumman's engineers continued working to fix them until the LM had to be mounted on the SaturnV in December 1968, where it was housed inside the Spacecraft-Lunar Module Adapter, numbered as SLA-11A. LM-2 never flew in space and is in the National Air and Space Museum. The Apollo astronauts were provided with early versions of the Sony Walkman, portable cassette recorders intended to allow them to make observations during the mission. The Apollo9 crew was the first to be allowed to bring music mixtapes, one each, that could be played in that device. McDivitt and Scott preferred easy listening and country music; Schweickart's cassette tape of classical music went missing until the ninth day of the ten-day mission, when it was presented to him by Scott. After the Gemini 3 craft was dubbed Molly Brown by Grissom, NASA forbade naming spacecraft. The fact that during the Apollo9 mission, the CSM and LM would separate and need different call signs caused the Apollo9 astronauts to push for a change. In simulations, they began to refer to the CSM as "Gumdrop", a name inspired by the CM's appearance while in the blue protective wrapping in which it was transported from the manufacturer, and the LM as "Spider", inspired by the LM's appearance with landing legs deployed. Personnel in NASA public relations thought the names were too informal, but the call signs ultimately gained official sanction. NASA required more formal call signs for future missions, starting with Apollo 11. Life Support System backpack The Extravehicular Mobility Unit (EMU) backpack flew for the first time on Apollo9, used by Schweickart during his EVA. This included the Portable Life Support System (PLSS), providing oxygen to the astronaut and water for the Liquid Cooling Garment (LCG), which helped prevent overheating during extravehicular activity. Also present was the Oxygen Purge System (OPS), the "bedroll" atop the backpack, which could provide oxygen for up to roughly an hour if the PLSS failed. A more advanced version of the EMU was used for the lunar landing on Apollo 11. During his stand-up EVA, Scott did not wear a PLSS, but was connected to the CM's life support systems through an umbilical, utilizing a Pressure Control Valve (PCV). This device had been created in 1967 to allow for stand-up EVAs from the hatches of the LM or CM, or for brief ventures outside. It was later used by Scott for his lunar surface stand-up EVA on Apollo 15, and for the deep-space EVAs by the command module pilots of the final three Apollo flights. Mission highlights First through fifth days (March 3–7) Originally scheduled to launch on February 28, 1969, the liftoff of Apollo9 was postponed because all three astronauts had colds, and NASA did not want to risk that the mission might be affected. Around-the-clock labor shifts were required to keep the spacecraft in readiness; the delay cost $500,000. The rocket launched from KSC at 11:00:00 EST (16:00:00 GMT) on March 3. This was well within the launch window, which would have remained open for another three and a quarter hours. Present in the firing control room was Vice President Spiro Agnew on behalf of the new Nixon administration. McDivitt reported a smooth ride during the launch, although there was some vibration and the astronauts were surprised to be pushed forward when the Saturn V's first stage stopped firing, before its second stage took over, when they were pushed back into their couches. Each of the first two stages slightly underperformed; a deficiency made up, more or less, by the S-IVB third stage. Once the third stage cut out at 00:11:04.7 into the mission, Apollo9 had entered a parking orbit of . The crew began their first major orbital task with the separation of the CSM from the S-IVB at 02:41:16 into the mission, seeking to turn around and then dock with the LM, which was on the end of the S-IVB, after which the combined spacecraft would separate from the rocket. If it was not possible to make such a docking, the lunar landing could not take place. It was Scott's responsibility to fly the CSM, which he did to a successful docking, as the probe-and-drogue docking assembly worked properly. After McDivitt and Schweickart inspected the tunnel connecting the CM and LM, the assembled spacecraft separated from the S-IVB. The next task was to demonstrate that two docked spacecraft could be maneuvered by one engine. The five-second burn took place at 05:59.01.1 into the mission, accomplished with the SM's Service Propulsion System (SPS), after which Scott excitedly reported the LM was still in place. Thereafter, the S-IVB was fired again, and the stage was sent into solar orbit. From 09:00:00 to 19:30:00, a sleep period was scheduled. The astronauts slept well, but complained of being woken by non-English transmissions. Scott theorized that they were possibly in Chinese. The highlight of the second day in orbit (March 4) was three SPS burns. The initial burn, at 22:12:04.1, lasted 110 seconds, and including swiveling or "gimbaling" the engine to test whether the autopilot could dampen the induced oscillations, which it did within five seconds. Two more SPS burns followed, lightening the SM's fuel load. The spacecraft and engine passed every test, sometimes proving more robust than expected. The performance of the CSM in remaining stable while the engine was being gimbaled would in 1972 help cause McDivitt, by then manager of the Apollo Spacecraft Program, to approve the continuation of Apollo 16 when its CSM was experiencing an unstable gimbal after separation from its LM in lunar orbit. The flight plan for the third day in space was to have the commander and lunar module pilot enter the LM to check out its systems and use its descent engine to move the entire spacecraft. The descent engine was the backup to the SPS; the ability to use it in this manner would prove critical on Apollo 13. The flight plan was thrown into question when Schweickart, suffering from space adaptation sickness, vomited, while McDivitt felt queasy as well. They had been avoiding sudden physical motions, but the contortion-like maneuvers to don their space suits for the LM checkout caused them to feel ill. The experience would teach the doctors enough about the sickness to have the astronauts avoid it on the lunar landings, but at the time Schweickart feared his vomiting might endanger Kennedy's goal. They were well enough to continue with the day's plan, and entered the LM, thus transferring between vehicles for the first time in the US space program, and making the first ever transfer without needing to spacewalk, as Soviet cosmonauts had. The hatches were then closed, though the modules remained docked, showing that Spider communications and life support systems would work in isolation from those of Gumdrop. On command, the landing legs sprang into the position they would assume for landing on the Moon. In the LM, Schweickart vomited again, causing McDivitt to request a private channel to the doctors in Houston. The first episode had not been reported to the ground because of its brief nature, and when the media learned what had happened to Schweickart, there were "repercussions and a spate of unfriendly stories". They finished the LM checkout, including the successful firing of the descent engine, and returned to Scott in Gumdrop. The burn lasted 367 seconds and simulated the throttle pattern to be used during the landing on the Moon. After they returned, a fifth firing of the SPS was made, designed to circularize Apollo9's orbit in preparation for the rendezvous. This took place at 54:26:12.3, raising the craft's orbit to . The fourth day's program (March 6) was for Schweickart to exit the hatch on the LM and make his way along the outside of the spacecraft to the CM's hatch, where Scott would stand by to assist, demonstrating that this could be done in the event of an emergency. Schweickart was to wear the life support backpack, or PLSS, to be worn on the lunar surface EVAs. This was the only EVA scheduled before the lunar landing, and thus the only opportunity to test the PLSS in space. McDivitt initially canceled the EVA due to Schweickart's condition, but with the lunar module pilot feeling better, decided to allow him to exit the LM, and once he was there, to move around the LM's exterior using handholds. Scott stood in the CM's hatch; both men photographed each other and retrieved experiments from the exterior of their vehicles. Schweickart found moving around easier than it had been in simulations; both he and Scott were confident that Schweickart could have completed the exterior transfer if called upon to do so, but considered it unnecessary. During the EVA, Schweickart used the call sign "Red Rover", a nod to the color of his hair. On March 7, the fifth day, came "the key event of the entire mission: the separation and rendezvous of the lunar module and the command module". The lunar module lacked the capability to return the astronauts to Earth; this was the first time space travelers had flown in a vehicle that could not take them home. McDivitt and Schweickart entered the LM early, having obtained permission to do so without wearing their helmets and gloves, making it easier to set up the LM. When Scott in Gumdrop pushed the button to release the LM, it initially hung on the latches at the end of the docking probe, but he hit the button again and Spider was released. After spending about 45 minutes near Gumdrop, Spider went into a slightly higher orbit, meaning that over time, the two craft would separate, with Gumdrop ahead. Over the next hours, McDivitt fired the LM's descent engine at several throttle settings; by the end of the day the LM was thoroughly test-flown. At a distance of , Spider fired to lower its orbit and thus begin to catch up with Gumdrop, a process that would take over two hours, and the descent stage was jettisoned. The approach and rendezvous were conducted as near as possible to what was planned for the lunar missions. To demonstrate that rendezvous could be performed by either craft, Spider was the active party during the maneuver. McDivitt brought Spider close to Gumdrop, then maneuvered the LM to show each side to Scott, allowing him to inspect for any damage. Then, McDivitt docked the craft. Due to glare from the Sun, he had trouble doing this and Scott guided him in. During the later missions, the job of docking the two spacecraft in lunar orbit would fall to the command module pilot. After McDivitt and Schweickart returned to Gumdrop, Spider was jettisoned, its engine fired to fuel depletion remotely by Mission Control as part of further testing of the engine, simulating an ascent stage's climb from the lunar surface. This raised Spider to an orbit with apogee of over . The only major lunar module system not fully tested was the landing radar, as this could not be done in Earth orbit. Sixth through eleventh days (March 8–13) Apollo 9 was to remain in space for about ten days to check how the CSM would perform over the period of time required for a lunar mission. Most major events had been scheduled for the first days so that they would be accomplished if the flight needed to be ended early. The remaining days in orbit were to be conducted at a more leisurely pace. With the main goals of the mission accomplished, the hatch window was used for special photography of Earth, using four identical Hasselblad cameras, coupled together and using film sensitive to different parts of the electromagnetic spectrum. Such photography allowed different features of the Earth's surface to appear, for example, tracking of water pollution as it exits mouths of rivers into the sea, and the highlighting of agricultural areas using infrared. The camera system was a prototype, and would pave the way for the Earth Resources Technology Satellite, predecessor to the Landsat series. The photography was successful, as the ample time in orbit meant the crew could wait to allow cloud cover to pass, and would inform Skylab's mission planning. Scott used a sextant to track landmarks on the Earth, and turned the instrument to the skies to observe the planet Jupiter, practicing navigation techniques that were to be used on later missions. The crew was able to track the Pegasus 3 satellite (launched in 1965) as well as the ascent stage of Spider. The sixth burn of the SPS engine took place on the sixth day, though it was postponed one orbit as the reaction control system (RCS) thruster burn needed to settle the reactants in their tanks was not properly programmed. The SPS burn lowered the perigee of Apollo9's orbit, allowing for improved RCS thruster deorbit capability as a backup to the SPS. Considerable testing of the CSM took place, but this was principally Scott's responsibility, allowing McDivitt and Schweickart leisure to observe the Earth; they alerted Scott if anything particularly noteworthy was upcoming, letting him leave his work for a moment to look at Earth too. The seventh burn of the SPS system took place on the eighth day, March 10; its purpose was again to aid RCS deorbit capability, as well as extending Gumdrop orbital lifetime. It shifted the apogee of the orbit to the Southern Hemisphere, allowing for a longer free-fall time to entry when Apollo9 returned to Earth. The burn was extended to allow for testing of the propellent gaging system, which had been behaving anomalously during earlier SPS burns. Once it was accomplished, Apollo9's RCS thrusters could have returned it to Earth and still allowed it to land in the primary recovery zone had the SPS engine failed. The eighth and final SPS burn, to return the vehicle to Earth, was accomplished on March 13, less than an hour after the ten-day mark of the mission, after which the service module was jettisoned. The landing was delayed one orbit because of unfavorable weather in the primary landing zone some ESE of Bermuda. Instead, Apollo9 splashed down east of the Bahamas, about from the recovery carrier, the USS Guadalcanal, after a mission lasting 10 days, 1hour, 54 seconds. Apollo9 was the last spacecraft to splash down in the Atlantic Ocean for a half century, until the Crew Dragon Demo-1 mission in 2019, and last crewed splashdown in the Atlantic until Inspiration4 in 2021. Hardware disposition The Apollo9 Command Module Gumdrop (1969-018A) is on display at the San Diego Air & Space Museum. Gumdrop was formerly displayed at the Michigan Space and Science Center, Jackson, Michigan, until April 2004, when the center closed. The service module, jettisoned shortly after the deorbit burn, reentered the atmosphere and disintegrated. The ascent stage of LM-3 Spider (1969-018C) reentered on October 23, 1981. The descent stage of LM-3 Spider (1969-018D) reentered on March 22, 1969, landing in the Indian Ocean near North Africa. The S-IVB (1969-018B) was sent into solar orbit, with initial aphelion of , perihelion of and orbital period of 245 days. It remains in solar orbit . Appraisal and aftermath As NASA Associate Administrator George Mueller put it, "Apollo9 was as successful a flight as any of us could ever wish for, as well as being as successful as any of us have ever seen." Gene Kranz called Apollo9 "sheer exhilaration". Apollo Program Director Samuel C. Phillips stated, "in every way, it has exceeded even our most optimistic expectations." Apollo11 astronaut Buzz Aldrin stood in Mission Control as Spider and Gumdrop docked after their separate flights, and with the docking, according to Andrew Chaikin, "Apollo9 had fulfilled all its major objectives. At that moment, Aldrin knew Apollo10 would also succeed, and that he and Armstrong would attempt to land on the Moon. On March 24, NASA made it official." Although he might have been offered command of an Apollo lunar landing mission, McDivitt chose to leave the Astronaut Corps after Apollo9, becoming manager of the Apollo Spacecraft Program later in 1969. Scott was soon given another spaceflight assignment as backup commander of Apollo 12, and then was made mission commander of Apollo 15, landing on the Moon in 1971. Schweickart volunteered for medical investigation of his spacesickness, but was unable to shake its stigma, and was never again assigned to a prime crew. He took a leave of absence from NASA in 1977 that eventually became permanent. Eugene Cernan, commander of Apollo 17, stated that when it came to understanding spacesickness, Schweickart "paid the price for them all". Following the success of Apollo 9, NASA did not conduct the "E mission" (further testing in medium Earth orbit), and even considered skipping the "F mission", the dress rehearsal for the lunar landing, going straight to the landing attempt. As the spacecraft designated for the first landing attempt were still being assembled, this was not done. NASA officials also felt that given the past difficulties with the LM, there was a need for a further test flight before the actual landing attempt, and that orbiting the Moon would give them the opportunity to study mass concentrations there, which had affected Apollo8's orbit. According to French and Burgess in their study of the Apollo Program, "In any event,... Apollo9's success had ensured that the next Apollo mission would go back to the moon." See also List of spacewalks and moonwalks 1965–1999 Notes References Bibliography External links NASA reports "Apollo 9 flight plan AS-504/CSM-104/LM-3 Final Report" (PDF) by J. V. Rivers, NASA, February 1969 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 Multimedia Apollo 9: Three To Make Ready Official NASA documentary film (1969) Apollo 9 16mm onboard film part 1, part 2 raw footage taken from Apollo 9 Apollo 9: The Space Duet of Spider & Gumdrop Official NASA documentary film (1969), Apollo 9 images at NASA'S Kennedy Space Center Extravehicular activity Human spaceflights Apollo 09 1969 in the United States Spacecraft launched in 1969 Spacecraft which reentered in 1969 March 1969 events Spacecraft launched by Saturn rockets James McDivitt David Scott Rusty Schweickart

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https://en.wikipedia.org/wiki/Arthritis

Arthritis

Arthritis is a term often used to mean any disorder that affects joints. Symptoms generally include joint pain and stiffness. Other symptoms may include redness, warmth, swelling, and decreased range of motion of the affected joints. In some types of arthritis, other organs are also affected. Onset can be gradual or sudden. There are over 100 types of arthritis. The most common forms are osteoarthritis (degenerative joint disease) and rheumatoid arthritis. Osteoarthritis usually occurs with age and affects the fingers, knees, and hips. Rheumatoid arthritis is an autoimmune disorder that often affects the hands and feet. Other types include gout, lupus, fibromyalgia, and septic arthritis. They are all types of rheumatic disease. Treatment may include resting the joint and alternating between applying ice and heat. Weight loss and exercise may also be useful. Recommended medications may depend on the form of arthritis. These may include pain medications such as ibuprofen and paracetamol (acetaminophen). In some circumstances, a joint replacement may be useful. Osteoarthritis affects more than 3.8% of people, while rheumatoid arthritis affects about 0.24% of people. Gout affects about 1–2% of the Western population at some point in their lives. In Australia about 15% of people are affected by arthritis, while in the United States more than 20% have a type of arthritis. Overall the disease becomes more common with age. Arthritis is a common reason that people miss work and can result in a decreased quality of life. The term is derived from arthr- (meaning 'joint') and -itis (meaning 'inflammation'). Classification There are several diseases where joint pain is primary, and is considered the main feature. Generally when a person has "arthritis" it means that they have one of these diseases, which include: Hemarthrosis Osteoarthritis Rheumatoid arthritis Gout and pseudo-gout Septic arthritis Ankylosing spondylitis Juvenile idiopathic arthritis Still's disease Psoriatic arthritis Joint pain can also be a symptom of other diseases. In this case, the arthritis is considered to be secondary to the main disease; these include: Psoriasis Reactive arthritis Ehlers–Danlos syndrome Iron overload Hepatitis Lyme disease Sjögren's disease Hashimoto's thyroiditis Celiac disease Non-celiac gluten sensitivity Inflammatory bowel disease (including Crohn's disease and ulcerative colitis) Henoch–Schönlein purpura Hyperimmunoglobulinemia D with recurrent fever Sarcoidosis Whipple's disease TNF receptor associated periodic syndrome Granulomatosis with polyangiitis (and many other vasculitis syndromes) Familial Mediterranean fever Systemic lupus erythematosus An undifferentiated arthritis is an arthritis that does not fit into well-known clinical disease categories, possibly being an early stage of a definite rheumatic disease. Signs and symptoms Pain, which can vary in severity, is a common symptom in virtually all types of arthritis. Other symptoms include swelling, joint stiffness, redness, and aching around the joint(s). Arthritic disorders like lupus and rheumatoid arthritis can affect other organs in the body, leading to a variety of symptoms. Symptoms may include: Inability to use the hand or walk Stiffness in one or more joints Rash or itch Malaise and fatigue Weight loss Poor sleep Muscle aches and pains Tenderness Difficulty moving the joint It is common in advanced arthritis for significant secondary changes to occur. For example, arthritic symptoms might make it difficult for a person to move around and/or exercise, which can lead to secondary effects, such as: Muscle weakness Loss of flexibility Decreased aerobic fitness These changes, in addition to the primary symptoms, can have a huge impact on quality of life. Disability Arthritis is the most common cause of disability in the United States. More than 20 million individuals with arthritis have severe limitations in function on a daily basis. Absenteeism and frequent visits to the physician are common in individuals who have arthritis. Arthritis can make it difficult for individuals to be physically active and some become home bound. It is estimated that the total cost of arthritis cases is close to $100 billion of which almost 50% is from lost earnings. Each year, arthritis results in nearly 1 million hospitalizations and close to 45 million outpatient visits to health care centers. Decreased mobility, in combination with the above symptoms, can make it difficult for an individual to remain physically active, contributing to an increased risk of obesity, high cholesterol or vulnerability to heart disease. People with arthritis are also at increased risk of depression, which may be a response to numerous factors, including fear of worsening symptoms. Risk factors There are common risk factors that increase a person's chance of developing arthritis later in adulthood. Some of these are modifiable while others are not. Smoking has been linked to an increased susceptibility of developing arthritis, particularly rheumatoid arthritis. Diagnosis Diagnosis is made by clinical examination from an appropriate health professional, and may be supported by other tests such as radiology and blood tests, depending on the type of suspected arthritis. All arthritides potentially feature pain. Pain patterns may differ depending on the arthritides and the location. Rheumatoid arthritis is generally worse in the morning and associated with stiffness lasting over 30 minutes. However, in the early stages, patients may have no symptoms after a warm shower. Osteoarthritis, on the other hand, tends to be associated with morning stiffness which eases relatively quickly with movement and exercise. In the aged and children, pain might not be the main presenting feature; the aged patient simply moves less, the infantile patient refuses to use the affected limb. Elements of the history of the disorder guide diagnosis. Important features are speed and time of onset, pattern of joint involvement, symmetry of symptoms, early morning stiffness, tenderness, gelling or locking with inactivity, aggravating and relieving factors, and other systemic symptoms. It may include checking joints, observing movements, examination of skin for rashes or nodules and symptoms of pulmonary inflammation. Physical examination may confirm the diagnosis or may indicate systemic disease. Radiographs are often used to follow progression or help assess severity. Blood tests and X-rays of the affected joints often are performed to make the diagnosis. Screening blood tests are indicated if certain arthritides are suspected. These might include: rheumatoid factor, antinuclear factor (ANF), extractable nuclear antigen, and specific antibodies. Rheumatoid arthritis patients often have high erythrocyte sedimentation rate (ESR, also known as sed rate) or C-reactive protein (CRP) levels, which indicates the presence of an inflammatory process in the body. Anti-cyclic citrullinated peptide (anti-CCP) antibodies and rheumatoid factor (RF) are two more common blood tests. Positive results indicate the risk of rheumatoid arthritis, while negative results help rule out this autoimmune condition. Imaging tests like X-rays, MRI scans or Ultrasounds used to diagnose and monitor arthritis. Other imaging tests for rheumatoid arthritis that may be considered include computed tomography (CT) scanning, positron emission tomography (PET) scanning, bone scanning, and dual-energy X-ray absorptiometry (DEXA). Osteoarthritis Osteoarthritis is the most common form of arthritis. It affects humans and other animals, notably dogs, but also occurs in cats and horses. It can affect both the larger and the smaller joints of the body. In humans, this includes the hands, wrists, feet, back, hip, and knee. In dogs, this includes the elbow, hip, stifle (knee), shoulder, and back. The disease is essentially one acquired from daily wear and tear of the joint; however, osteoarthritis can also occur as a result of injury. Osteoarthritis begins in the cartilage and eventually causes the two opposing bones to erode into each other. The condition starts with minor pain during physical activity, but soon the pain can be continuous and even occur while in a state of rest. The pain can be debilitating and prevent one from doing some activities. In dogs, this pain can significantly affect quality of life and may include difficulty going up and down stairs, struggling to get up after lying down, trouble walking on slick floors, being unable to hop in and out of vehicles, difficulty jumping on and off furniture, and behavioral changes (e.g., aggression, difficulty squatting to toilet). Osteoarthritis typically affects the weight-bearing joints, such as the back, knee and hip. Unlike rheumatoid arthritis, osteoarthritis is most commonly a disease of the elderly. The strongest predictor of osteoarthritis is increased age, likely due to the declining ability of chondrocytes to maintain the structural integrity of cartilage. More than 30 percent of women have some degree of osteoarthritis by age 65. Other risk factors for osteoarthritis include prior joint trauma, obesity, and a sedentary lifestyle. Rheumatoid arthritis Rheumatoid arthritis (RA) is a disorder in which the body's own immune system starts to attack body tissues. The attack is not only directed at the joint but to many other parts of the body. In rheumatoid arthritis, most damage occurs to the joint lining and cartilage which eventually results in erosion of two opposing bones. RA often affects joints in the fingers, wrists, knees and elbows, is symmetrical (appears on both sides of the body), and can lead to severe deformity in a few years if not treated. RA occurs mostly in people aged 20 and above. In children, the disorder can present with a skin rash, fever, pain, disability, and limitations in daily activities. With earlier diagnosis and aggressive treatment, many individuals can lead a better quality of life than if going undiagnosed for long after RA's onset. The risk factors with the strongest association for developing rheumatoid arthritis are the female sex, a family history of rheumatoid arthritis, age, obesity, previous joint damage from an injury, and exposure to tobacco smoke. Bone erosion is a central feature of rheumatoid arthritis. Bone continuously undergoes remodeling by actions of bone resorbing osteoclasts and bone forming osteoblasts. One of the main triggers of bone erosion in the joints in rheumatoid arthritis is inflammation of the synovium, caused in part by the production of pro-inflammatory cytokines and receptor activator of nuclear factor kappa B ligand (RANKL), a cell surface protein present in Th17 cells and osteoblasts. Osteoclast activity can be directly induced by osteoblasts through the RANK/RANKL mechanism. Lupus Lupus is a common collagen vascular disorder that can be present with severe arthritis. Other features of lupus include a skin rash, extreme photosensitivity, hair loss, kidney problems, lung fibrosis and constant joint pain. Gout Gout is caused by deposition of uric acid crystals in the joints, causing inflammation. There is also an uncommon form of gouty arthritis caused by the formation of rhomboid crystals of calcium pyrophosphate known as pseudogout. In the early stages, the gouty arthritis usually occurs in one joint, but with time, it can occur in many joints and be quite crippling. The joints in gout can often become swollen and lose function. Gouty arthritis can become particularly painful and potentially debilitating when gout cannot successfully be treated. When uric acid levels and gout symptoms cannot be controlled with standard gout medicines that decrease the production of uric acid (e.g., allopurinol) or increase uric acid elimination from the body through the kidneys (e.g., probenecid), this can be referred to as refractory chronic gout. Comparison of types Other Infectious arthritis is another severe form of arthritis. It presents with sudden onset of chills, fever and joint pain. The condition is caused by bacteria elsewhere in the body. Infectious arthritis must be rapidly diagnosed and treated promptly to prevent irreversible joint damage. Psoriasis can develop into psoriatic arthritis. With psoriatic arthritis, most individuals develop the skin problem first and then the arthritis. The typical features are continuous joint pains, stiffness and swelling. The disease does recur with periods of remission but there is no cure for the disorder. A small percentage develop a severely painful and destructive form of arthritis which destroys the small joints in the hands and can lead to permanent disability and loss of hand function. Treatment There is no known cure for arthritis and rheumatic diseases. Treatment options vary depending on the type of arthritis and include physical therapy, exercise and diet, orthopedic bracing, and oral and topical medications. Joint replacement surgery may be required to repair damage, restore function, or relieve pain. Physical therapy In general, studies have shown that physical exercise of the affected joint can noticeably improve long-term pain relief. Furthermore, exercise of the arthritic joint is encouraged to maintain the health of the particular joint and the overall body of the person. Individuals with arthritis can benefit from both physical and occupational therapy. In arthritis the joints become stiff and the range of movement can be limited. Physical therapy has been shown to significantly improve function, decrease pain, and delay the need for surgical intervention in advanced cases. Exercise prescribed by a physical therapist has been shown to be more effective than medications in treating osteoarthritis of the knee. Exercise often focuses on improving muscle strength, endurance and flexibility. In some cases, exercises may be designed to train balance. Occupational therapy can provide assistance with activities. Assistive technology is a tool used to aid a person's disability by reducing their physical barriers by improving the use of their damaged body part, typically after an amputation. Assistive technology devices can be customized to the patient or bought commercially. Medications There are several types of medications that are used for the treatment of arthritis. Treatment typically begins with medications that have the fewest side effects with further medications being added if insufficiently effective. Depending on the type of arthritis, the medications that are given may be different. For example, the first-line treatment for osteoarthritis is acetaminophen (paracetamol) while for inflammatory arthritis it involves non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen. Opioids and NSAIDs may be less well tolerated. However, topical NSAIDs may have better safety profiles than oral NSAIDs. For more severe cases of osteoarthritis, intra-articular corticosteroid injections may also be considered. The drugs to treat rheumatoid arthritis (RA) range from corticosteroids to monoclonal antibodies given intravenously. Due to the autoimmune nature of RA, treatments may include not only pain medications and anti-inflammatory drugs, but also another category of drugs called disease-modifying antirheumatic drugs (DMARDs). csDMARDs, TNF biologics and tsDMARDs are specific kinds of DMARDs that are recommended for treatment. Treatment with DMARDs is designed to slow down the progression of RA by initiating an adaptive immune response, in part by CD4+ T helper (Th) cells, specifically Th17 cells. Th17 cells are present in higher quantities at the site of bone destruction in joints and produce inflammatory cytokines associated with inflammation, such as interleukin-17 (IL-17). Surgery A number of rheumasurgical interventions have been incorporated in the treatment of arthritis since the 1950s. Arthroscopic surgery for osteoarthritis of the knee provides no additional benefit to optimized physical and medical therapy. Adaptive aids People with hand arthritis can have trouble with simple activities of daily living tasks (ADLs), such as turning a key in a lock or opening jars, as these activities can be cumbersome and painful. There are adaptive aids or assistive devices (ADs) available to help with these tasks, but they are generally more costly than conventional products with the same function. It is now possible to 3-D print adaptive aids, which have been released as open source hardware to reduce patient costs. Adaptive aids can significantly help arthritis patients and the vast majority of those with arthritis need and use them. Alternative medicine Further research is required to determine if transcutaneous electrical nerve stimulation (TENS) for knee osteoarthritis is effective for controlling pain. Low level laser therapy may be considered for relief of pain and stiffness associated with arthritis. Evidence of benefit is tentative. Pulsed electromagnetic field therapy (PEMFT) has tentative evidence supporting improved functioning but no evidence of improved pain in osteoarthritis. The FDA has not approved PEMFT for the treatment of arthritis. In Canada, PEMF devices are legally licensed by Health Canada for the treatment of pain associated with arthritic conditions. Epidemiology Arthritis is predominantly a disease of the elderly, but children can also be affected by the disease. Arthritis is more common in women than men at all ages and affects all races, ethnic groups and cultures. In the United States a CDC survey based on data from 2013 to 2015 showed 54.4 million (22.7%) adults had self-reported doctor-diagnosed arthritis, and 23.7 million (43.5% of those with arthritis) had arthritis-attributable activity limitation (AAAL). With an aging population, this number is expected to increase. Adults with co-morbid conditions, such as heart disease, diabetes, and obesity, were seen to have a higher than average prevalence of doctor-diagnosed arthritis (49.3%, 47.1%, and 30.6% respectively). Disability due to musculoskeletal disorders increased by 45% from 1990 to 2010. Of these, osteoarthritis is the fastest increasing major health condition. Among the many reports on the increased prevalence of musculoskeletal conditions, data from Africa are lacking and underestimated. A systematic review assessed the prevalence of arthritis in Africa and included twenty population-based and seven hospital-based studies. The majority of studies, twelve, were from South Africa. Nine studies were well-conducted, eleven studies were of moderate quality, and seven studies were conducted poorly. The results of the systematic review were as follows: Rheumatoid arthritis: 0.1% in Algeria (urban setting); 0.6% in Democratic Republic of Congo (urban setting); 2.5% and 0.07% in urban and rural settings in South Africa respectively; 0.3% in Egypt (rural setting), 0.4% in Lesotho (rural setting) Osteoarthritis: 55.1% in South Africa (urban setting); ranged from 29.5 to 82.7% in South Africans aged 65 years and older Knee osteoarthritis has the highest prevalence from all types of osteoarthritis, with 33.1% in rural South Africa Ankylosing spondylitis: 0.1% in South Africa (rural setting) Psoriatic arthritis: 4.4% in South Africa (urban setting) Gout: 0.7% in South Africa (urban setting) Juvenile idiopathic arthritis: 0.3% in Egypt (urban setting) History Evidence of osteoarthritis and potentially inflammatory arthritis has been discovered in dinosaurs. The first known traces of human arthritis date back as far as 4500 BC. In early reports, arthritis was frequently referred to as the most common ailment of prehistoric peoples. It was noted in skeletal remains of Native Americans found in Tennessee and parts of what is now Olathe, Kansas. Evidence of arthritis has been found throughout history, from Ötzi, a mummy () found along the border of modern Italy and Austria, to the Egyptian mummies . In 1715, William Musgrave published the second edition of his most important medical work, De arthritide symptomatica, which concerned arthritis and its effects. Augustin Jacob Landré-Beauvais, a 28-year-old resident physician at Salpêtrière Asylum in France was the first person to describe the symptoms of rheumatoid arthritis. Though Landré-Beauvais' classification of rheumatoid arthritis as a relative of gout was inaccurate, his dissertation encouraged others to further study the disease. Terminology The term is derived from arthr- (from ) and -itis (from , , ), the latter suffix having come to be associated with inflammation. The word arthritides is the plural form of arthritis, and denotes the collective group of arthritis-like conditions. See also Antiarthritics Arthritis Care (charity in the UK) Arthritis Foundation (US not-for-profit) Knee arthritis Osteoimmunology Weather pains References External links American College of Rheumatology – US professional society of rheumatologists National Institute of Arthritis and Musculoskeletal and Skin Diseases - US National Institute of Arthritis and Musculoskeletal and Skin Diseases Aging-associated diseases Inflammations Rheumatology Wikipedia neurology articles ready to translate Skeletal disorders Wikipedia medicine articles ready to translate

1778

https://en.wikipedia.org/wiki/Acetylene

Acetylene

Acetylene (systematic name: ethyne) is the chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine. As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. Discovery Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was an accidental discovery while attempting to isolate potassium metal. By heating potassium carbonate with carbon at very high temperatures, he produced a residue of what is now known as potassium carbide, (K2C2), which reacted with water to release the new gas. It was rediscovered in 1860 by French chemist Marcellin Berthelot, who coined the name acétylène. Berthelot's empirical formula for acetylene (C4H2), as well as the alternative name "quadricarbure d'hydrogène" (hydrogen quadricarbide), were incorrect because many chemists at that time used the wrong atomic mass for carbon (6 instead of 12). Berthelot was able to prepare this gas by passing vapours of organic compounds (methanol, ethanol, etc.) through a red hot tube and collecting the effluent. He also found that acetylene was formed by sparking electricity through mixed cyanogen and hydrogen gases. Berthelot later obtained acetylene directly by passing hydrogen between the poles of a carbon arc. Preparation Except for China acetylene production is dominated by partial combustion of natural gas. Partial combustion of hydrocarbons Since the 1950s, acetylene has mainly been manufactured by the partial combustion of methane. It is a recovered side product in production of ethylene by cracking of hydrocarbons. Approximately 400,000 tonnes were produced by this method in 1983. Its presence in ethylene is usually undesirable because of its explosive character and its ability to poison Ziegler–Natta catalysts. It is selectively hydrogenated into ethylene, usually using Pd–Ag catalysts. 3 CH4 + 3 O2 → C2H2 + CO + 5 H2O. Partial combustion of methane also produces acetylene: Dehydrogenation of alkanes The heaviest alkanes in petroleum and natural gas are cracked into lighter molecules which are dehydrogenated at high temperature: C2H6 → C2H2 + 2 H2 2 CH4→ C2H2+ 3 H2 This last reaction is implemented in the process of anaerobic decomposition of methane by microwave plasma. The advantage of this technology is the absence of CO2 emissions and the joint production of hydrogen as a secondary product. It makes it a low-carbon technology production and also an electrified process. For 32 t of methane transformed, production of 26 t of acetylene and 6 t of hydrogen (according to stoichiometry). Carbochemical method The production of acetylene from calcium carbide is a traditional and still the dominant route: The conditions for production of calcium carbide are environmentally unacceptable in most advanced countries, except China. Until the 1950s, when oil supplanted coal as the chief source of reduced carbon, acetylene (and the aromatic fraction from coal tar) was the main source of organic chemicals in the chemical industry. It was prepared by the hydrolysis of calcium carbide, a reaction discovered by Friedrich Wöhler in 1862 and still familiar to students: Calcium carbide production requires high temperatures, ~2000 °C, necessitating the use of an electric arc furnace. In the US, this process was an important part of the late-19th century revolution in chemistry enabled by the massive hydroelectric power project at Niagara Falls. In the user, the carbide reacts with water to produce acetylene, 1 kg of carbide combining with 562.5 g of water to release 350 l of acetylene. Bonding In terms of valence bond theory, in each carbon atom the 2s orbital hybridizes with one 2p orbital thus forming an sp hybrid. The other two 2p orbitals remain unhybridized. The two ends of the two sp hybrid orbital overlap to form a strong σ valence bond between the carbons, while on each of the other two ends hydrogen atoms attach also by σ bonds. The two unchanged 2p orbitals form a pair of weaker π bonds. Since acetylene is a linear symmetrical molecule, it possesses the D∞h point group. Physical properties Changes of state At atmospheric pressure, acetylene cannot exist as a liquid and does not have a melting point. The triple point on the phase diagram corresponds to the melting point (−80.8 °C) at the minimal pressure at which liquid acetylene can exist (1.27 atm). At temperatures below the triple point, solid acetylene can change directly to the vapour (gas) by sublimation. The sublimation point at atmospheric pressure is −84.0 °C. Other At room temperature, the solubility of acetylene in acetone is 27.9 g per kg. For the same amount of dimethylformamide (DMF), the solubility is 51 g. At 20.26 bar, the solubility increases to 689.0 and 628.0 g for acetone and DMF, respectively. These solvents are used in pressurized gas cylinders. Applications Welding Approximately 20% of acetylene is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame. Combustion of acetylene with oxygen produces a flame of over , releasing 11.8 kJ/g. Oxyacetylene is the hottest burning common fuel gas. Acetylene is the third-hottest natural chemical flame after dicyanoacetylene's and cyanogen at . Oxy-acetylene welding was a popular welding process in previous decades. The development and advantages of arc-based welding processes have made oxy-fuel welding nearly extinct for many applications. Acetylene usage for welding has dropped significantly. On the other hand, oxy-acetylene welding equipment is quite versatile – not only because the torch is preferred for some sorts of iron or steel welding (as in certain artistic applications), but also because it lends itself easily to brazing, braze-welding, metal heating (for annealing or tempering, bending or forming), the loosening of corroded nuts and bolts, and other applications. Bell Canada cable-repair technicians still use portable acetylene-fuelled torch kits as a soldering tool for sealing lead sleeve splices in manholes and in some aerial locations. Oxyacetylene welding may also be used in areas where electricity is not readily accessible. Oxyacetylene cutting is used in many metal fabrication shops. For use in welding and cutting, the working pressures must be controlled by a regulator, since above , if subjected to a shockwave (caused, for example, by a flashback), acetylene decomposes explosively into hydrogen and carbon. Chemicals Acetylene, despite its simplicity, is not used for many industrial processes. One of the major chemical applications is ethynylation of formaldehyde. Acetylene adds to aldehydes and ketones to form α-ethynyl alcohols: The reaction gives butynediol, with propargyl alcohol as the by-product. Copper acetylide is used as the catalyst. In addition to ethynylation, acetylene reacts with carbon monoxide, acetylene reacts to give acrylic acid, or acrylic esters. Metal catalysts are required. These derivatives form products such as acrylic fibers, glasses, paints, resins, and polymers. Except in China, use of acetylene as a chemical feedstock has declined by 70% from 1965 to 2007 owing to cost and environmental considerations. Historical uses Prior to the widespread use of petrochemicals, coal-derived acetylene was a building block for several industrial chemicals. Thus acetylene can be hydrated to give acetaldehyde, which in turn can be oxidized to acetic acid. Processes leading to acrylates were also commericalized. Almost all of these processes because obsolete with the availability of petroleum-derived ethylene and propylene. Niche applications In 1881, the Russian chemist Mikhail Kucherov described the hydration of acetylene to acetaldehyde using catalysts such as mercury(II) bromide. Before the advent of the Wacker process, this reaction was conducted on an industrial scale. The polymerization of acetylene with Ziegler–Natta catalysts produces polyacetylene films. Polyacetylene, a chain of CH centres with alternating single and double bonds, was one of the first discovered organic semiconductors. Its reaction with iodine produces a highly electrically conducting material. Although such materials are not useful, these discoveries led to the developments of organic semiconductors, as recognized by the Nobel Prize in Chemistry in 2000 to Alan J. Heeger, Alan G MacDiarmid, and Hideki Shirakawa. In the 1920s, pure acetylene was experimentally used as an inhalation anesthetic. Acetylene is sometimes used for carburization (that is, hardening) of steel when the object is too large to fit into a furnace. Acetylene is used to volatilize carbon in radiocarbon dating. The carbonaceous material in an archeological sample is treated with lithium metal in a small specialized research furnace to form lithium carbide (also known as lithium acetylide). The carbide can then be reacted with water, as usual, to form acetylene gas to feed into a mass spectrometer to measure the isotopic ratio of carbon-14 to carbon-12. Acetylene combustion produces a strong, bright light and the ubiquity of carbide lamps drove much acetylene commercialization in the early 20th century. Common applications included coastal lighthouses, street lights, and automobile and mining headlamps. In most of these applications, direct combustion is a fire hazard, and so acetylene has been replaced, first by incandescent lighting and many years later by low-power/high-lumen LEDs. Nevertheless, acetylene lamps remain in limited use in remote or otherwise inaccessible areas and in countries with a weak or unreliable central electric grid. Natural occurrence The energy richness of the C≡C triple bond and the rather high solubility of acetylene in water make it a suitable substrate for bacteria, provided an adequate source is available. A number of bacteria living on acetylene have been identified. The enzyme acetylene hydratase catalyzes the hydration of acetylene to give acetaldehyde: Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. One curious discovery of acetylene is on Enceladus, a moon of Saturn. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of and above. Since such temperatures are highly unlikely on such a small distant body, this discovery is potentially suggestive of catalytic reactions within that moon, making it a promising site to search for prebiotic chemistry. Reactions Vinylation reactions In vinylation reactions, H−X compounds add across the triple bond. Alcohols and phenols add to acetylene to give vinyl ethers. Thiols give vinyl thioethers. Similarly, vinylpyrrolidone and vinylcarbazole are produced industrially by vinylation of 2-pyrrolidone and carbazole. The hydration of acetylene is a vinylation reaction, but the resulting vinyl alcohol isomerizes to acetaldehyde. The reaction is catalyzed by mercury salts. This reaction once was the dominant technology for acetaldehyde production, but it has been displaced by the Wacker process, which affords acetaldehyde by oxidation of ethylene, a cheaper feedstock. A similar situation applies to the conversion of acetylene to the valuable vinyl chloride by hydrochlorination vs the oxychlorination of ethylene. Vinyl acetate is used instead of acetylene for some vinylations, which are more accurately described as transvinylations. Higher esters of vinyl acetate have been used in the synthesis of vinyl formate. Organometallic chemistry Acetylene and its derivatives (2-butyne, diphenylacetylene, etc.) form complexes with transition metals. Its bonding to the metal is somewhat similar to that of ethylene complexes. These complexes are intermediates in many catalytic reactions such as alkyne trimerisation to benzene, tetramerization to cyclooctatetraene, and carbonylation to hydroquinone: at basic conditions (50–, 20–). In the presence of certain transition metals, alkynes undergo alkyne metathesis. Metal acetylides, species of the formula , are also common. Copper(I) acetylide and silver acetylide can be formed in aqueous solutions with ease due to a favorable solubility equilibrium. Acid-base reactions Acetylene has a pKa of 25, acetylene can be deprotonated by a superbase to form an acetylide: HC#CH + RM -> RH + HC#CM Various organometallic and inorganic reagents are effective. Hydrogenation Acetylene can be semihydrogenated to ethylene, providing a feedstock for a variety of polyethylene plastics. Halogens add to the triple bond. Safety and handling Acetylene is not especially toxic, but when generated from calcium carbide, it can contain toxic impurities such as traces of phosphine and arsine, which give it a distinct garlic-like smell. It is also highly flammable, as are most light hydrocarbons, hence its use in welding. Its most singular hazard is associated with its intrinsic instability, especially when it is pressurized: under certain conditions acetylene can react in an exothermic addition-type reaction to form a number of products, typically benzene and/or vinylacetylene, possibly in addition to carbon and hydrogen. Consequently, acetylene, if initiated by intense heat or a shockwave, can decompose explosively if the absolute pressure of the gas exceeds about . Most regulators and pressure gauges on equipment report gauge pressure, and the safe limit for acetylene therefore is 101 kPagage, or 15 psig. It is therefore supplied and stored dissolved in acetone or dimethylformamide (DMF), contained in a gas cylinder with a porous filling (Agamassan), which renders it safe to transport and use, given proper handling. Acetylene cylinders should be used in the upright position to avoid withdrawing acetone during use. Information on safe storage of acetylene in upright cylinders is provided by the OSHA, Compressed Gas Association, United States Mine Safety and Health Administration (MSHA), EIGA, and other agencies. Copper catalyses the decomposition of acetylene, and as a result acetylene should not be transported in copper pipes. Cylinders should be stored in an area segregated from oxidizers to avoid exacerbated reaction in case of fire/leakage. Acetylene cylinders should not be stored in confined spaces, enclosed vehicles, garages, and buildings, to avoid unintended leakage leading to explosive atmosphere. In the US, National Electric Code (NEC) requires consideration for hazardous areas including those where acetylene may be released during accidents or leaks. Consideration may include electrical classification and use of listed Group A electrical components in US. Further information on determining the areas requiring special consideration is in NFPA 497. In Europe, ATEX also requires consideration for hazardous areas where flammable gases may be released during accidents or leaks. References External links Acetylene Production Plant and Detailed Process Acetylene at Chemistry Comes Alive! Movie explaining acetylene formation from calcium carbide and the explosive limits forming fire hazards Calcium Carbide & Acetylene at The Periodic Table of Videos (University of Nottingham) CDC – NIOSH Pocket Guide to Chemical Hazards – Acetylene Alkynes Fuel gas Industrial gases Synthetic fuel technologies Explosive gases

1779

https://en.wikipedia.org/wiki/Alfred

Alfred

Alfred may refer to: Arts and entertainment Alfred J. Kwak, Dutch-German-Japanese anime television series Alfred (Arne opera), a 1740 masque by Thomas Arne Alfred (Dvořák), an 1870 opera by Antonín Dvořák "Alfred (Interlude)" and "Alfred (Outro)", songs by Eminem from the 2020 album Music to Be Murdered By Business and organisations Alfred, a radio station in Shaftesbury, England Alfred Music, an American music publisher Alfred University, New York, U.S. The Alfred Hospital, a hospital in Melbourne, Australia People Alfred (name) includes a list of people and fictional characters called Alfred Alfred the Great (848/49 – 899), or Alfred I, a king of the West Saxons and of the Anglo-Saxons Places Antarctica Mount Alfred (Antarctica) Australia Alfredtown, New South Wales County of Alfred, South Australia Canada Alfred and Plantagenet, Ontario Alfred Island, Nunavut Mount Alfred, British Columbia United States Alfred, Maine, a New England town Alfred (CDP), Maine, the main village in the town Alfred, New York, a town Alfred (village), New York, within the town of Alfred Alfred, North Dakota Alfred, Texas Lake Alfred, Florida Other uses HMS Alfred, the name of several ships of the Royal Navy USS Alfred, launched in 1774 as Black Prince Alfred (software), an application launcher for macOS ALFRED (nuclear reactor), lead-cooled fast reactor demonstrator Allele Frequency Database, an electronic database of genetic alleles See also Alfredo (disambiguation) HMS King Alfred HMS Royal Alfred (1864)

1781

https://en.wikipedia.org/wiki/August%2028

August 28

Events Pre-1600 475 – The Roman general Orestes forces western Roman Emperor Julius Nepos to flee his capital city, Ravenna. 489 – Theodoric, king of the Ostrogoths, defeats Odoacer at the Battle of Isonzo, forcing his way into Italy. 632 – Fatimah, daughter of the Islamic prophet Muhammad, dies, with her cause of death being a controversial topic among the Sunni Muslims and Shia Muslims. 663 – Silla–Tang armies crush the Baekje restoration attempt and force Yamato Japan to withdraw from Korea in the Battle of Baekgang. 1189 – Third Crusade: The Crusaders begin the Siege of Acre under Guy of Lusignan. 1521 – Ottoman wars in Europe: The Ottoman Turks occupy Belgrade. 1524 – The Kaqchikel Maya rebel against their former Spanish allies during the Spanish conquest of Guatemala. 1542 – Turkish–Portuguese War: Battle of Wofla: The Portuguese are scattered, their leader Christovão da Gama is captured and later executed. 1565 – Pedro Menéndez de Avilés sights land near St. Augustine, Florida and founds the oldest continuously occupied European-established city in the continental United States. 1601–1900 1609 – Henry Hudson discovers Delaware Bay. 1619 – Election of Ferdinand II, Holy Roman Emperor. 1640 – Second Bishop's War: King Charles I's English army loses to a Scottish Covenanter force at the Battle of Newburn. 1648 – Second English Civil War: The Siege of Colchester ends when Royalists Forces surrender to the Parliamentary Forces after eleven weeks, during the Second English Civil War. 1709 – Meidingnu Pamheiba is crowned King of Manipur. 1789 – William Herschel discovers a new moon of Saturn: Enceladus. 1810 – Napoleonic Wars: The French Navy accepts the surrender of a British Royal Navy fleet at the Battle of Grand Port. 1830 – The Baltimore and Ohio Railroad's new Tom Thumb steam locomotive races a horse-drawn car, presaging steam's role in U.S. railroads. 1833 – The Slavery Abolition Act 1833 receives royal assent, making the purchase or ownership of slaves illegal in the British Empire with exceptions. 1845 – The first issue of Scientific American magazine is published. 1849 – Revolutions of 1848 in the Austrian Empire: After a month-long siege, Venice, which had declared itself independent as the Republic of San Marco, surrenders to Austria. 1850 – Richard Wagner’s Lohengrin premieres at the Staatskapelle Weimar. 1859 – The Carrington event is the strongest geomagnetic storm on record to strike the Earth. Electrical telegraph service is widely disrupted. 1861 – American Civil War: Union forces attack Cape Hatteras, North Carolina in the Battle of Hatteras Inlet Batteries which lasts for two days. 1862 – American Civil War: The Second Battle of Bull Run, also known as the Battle of Second Manassas, begins in Virginia. The battle ends on August 30 with another Union defeat. 1867 – The United States takes possession of the (at this point unoccupied) Midway Atoll. 1879 – Anglo-Zulu War: Cetshwayo, last king of the Zulus, is captured by the British. 1898 – Caleb Bradham's beverage "Brad's Drink" is renamed "Pepsi-Cola". 1901–present 1901 – Silliman University is founded in the Philippines. It is the first American private school in the country. 1909 – A group of mid-level Greek Army officers launches the Goudi coup, seeking wide-ranging reforms. 1913 – Queen Wilhelmina opens the Peace Palace in The Hague. 1914 – World War I: The Royal Navy defeats the German fleet in the Battle of Heligoland Bight. 1916 – World War I: Germany declares war on Romania. 1916 – World War I: Italy declares war on Germany. 1917 – Ten suffragists, members of the Silent Sentinels, are arrested while picketing the White House in favor of women's suffrage in the United States. 1921 – Russian Civil War: The Red Army dissolved the Makhnovshchina, after driving the Revolutionary Insurgent Army out of Ukraine. 1924 – The Georgian opposition stages the August Uprising against the Soviet Union. 1936 – Nazi Germany begins its mass arrests of Jehovah's Witnesses, who are interned in concentration camps. 1937 – Toyota Motors becomes an independent company. 1943 – Denmark in World War II: German authorities demand that Danish authorities crack down on acts of resistance. The next day, martial law is imposed on Denmark. 1944 – World War II: Marseille and Toulon are liberated. 1946 – The Workers’ Party of North Korea, predecessor of the ruling Workers’ Party of Korea, is founded at a congress held in Pyongyang, North Korea. 1955 – Black teenager Emmett Till is lynched in Mississippi for whistling at a white woman, galvanizing the nascent civil rights movement. 1957 – U.S. Senator Strom Thurmond begins a filibuster to prevent the United States Senate from voting on the Civil Rights Act of 1957; he stopped speaking 24 hours and 18 minutes later, the longest filibuster ever conducted by a single Senator. 1963 – March on Washington for Jobs and Freedom: Rev. Dr. Martin Luther King Jr. gives his I Have a Dream speech. 1964 – The Philadelphia race riot begins. 1968 – Police and protesters clash during 1968 Democratic National Convention protests as protesters chant "The whole world is watching". 1973 – Norrmalmstorg robbery: Stockholm police secure the surrenders of hostage-takers Jan-Erik Olsson and Clark Olofsson, defusing the Norrmalmstorg hostage crisis. The behaviours of the hostages later give rise to the term Stockholm syndrome. 1988 – Ramstein air show disaster: Three aircraft of the Frecce Tricolori demonstration team collide and the wreckage falls into the crowd. Seventy-five are killed and 346 seriously injured. 1990 – Gulf War: Iraq declares Kuwait to be its newest province. 1990 – An F5 tornado strikes the Illinois cities of Plainfield and Joliet, killing 29 people. 1993 – NASA's Galileo probe performs a flyby of the asteroid 243 Ida. Astronomers later discover a moon, the first known asteroid moon, in pictures from the flyby and name it Dactyl. 1993 – Singaporean presidential election: Former Deputy Prime Minister Ong Teng Cheong is elected President of Singapore. Although it is the first presidential election to be determined by popular vote, the allowed candidates consist only of Ong and a reluctant whom the government had asked to run to confer upon the election the semblance of an opposition. 1993 – The autonomous Croatian Community of Herzeg-Bosnia in Bosnia and Herzegovina was transformed into the Croatian Republic of Herzeg-Bosnia. 1993 – A Tajikistan Airlines Yakovlev Yak-40 crashes during takeoff from Khorog Airport in Tajikistan, killing 82. 1996 – Chicago Seven defendant David Dellinger, antiwar activist Bradford Lyttle, Civil Rights Movement historian Randy Kryn, and eight others are arrested by the Federal Protective Service while protesting in a demonstration at the Kluczynski Federal Building in downtown Chicago during that year's Democratic National Convention. 1998 – Pakistan's National Assembly passes a constitutional amendment to make the "Qur'an and Sunnah" the "supreme law" but the bill is defeated in the Senate. 1998 – Second Congo War: Loyalist troops backed by Angolan and Zimbabwean forces repulse the RCD and Rwandan offensive on Kinshasa. 1999 – The Russian space mission Soyuz TM-29 reaches completion, ending nearly 10 years of continuous occupation on the space station Mir as it approaches the end of its life. 2003 – In "one of the most complicated and bizarre crimes in the annals of the FBI", Brian Wells dies after becoming involved in a complex plot involving a bank robbery, a scavenger hunt, and a homemade explosive device. 2016 – The first experimental mission of ISRO's Scramjet Engine towards the realisation of an Air Breathing Propulsion System was successfully conducted from Satish Dhawan Space Centre SHAR, Sriharikota. 2017 – China–India border standoff: China and India both pull their troops out of Doklam, putting an end to a two month-long stalemate over China’s construction of a road in disputed territory. Births Pre-1600 1023 – Go-Reizei, emperor of Japan (d. 1068) 1366 – Jean Le Maingre, marshal of France (d. 1421) 1476 – Kanō Motonobu, Japanese painter (d. 1559) 1481 – Francisco de Sá de Miranda, Portuguese poet (d. 1558) 1582 – Taichang, emperor of China (d. 1620) 1591 – John Christian of Brieg, duke of Brzeg (d. 1639) 1592 – George Villiers, 1st Duke of Buckingham, English courtier and politician (d. 1628) 1601–1900 1612 – Marcus Zuerius van Boxhorn, Dutch linguist and scholar (d. 1653) 1667 – Louise of Mecklenburg-Güstrow, queen of Denmark and Norway (d. 1721) 1691 – Elisabeth Christine of Brunswick-Wolfenbüttel, Holy Roman Empress (d. 1750) 1714 – Anthony Ulrich, duke of Brunswick-Lüneburg (d. 1774) 1728 – John Stark, American general (d. 1822) 1739 – Agostino Accorimboni, Italian composer (d. 1818) 1749 – Johann Wolfgang von Goethe, German novelist, poet, playwright, and diplomat (d. 1832) 1774 – Elizabeth Ann Seton, American nun and saint, co-founded the Sisters of Charity Federation in the Vincentian-Setonian Tradition (d. 1821) 1801 – Antoine Augustin Cournot, French mathematician and philosopher (d. 1877) 1814 – Sheridan Le Fanu, Irish author (d. 1873) 1816 – Charles Sladen, English-Australian politician, 6th Premier of Victoria (d. 1884) 1822 – Graham Berry, English-Australian politician, 11th Premier of Victoria (d. 1904) 1827 – Catherine Mikhailovna, Russian grand duchess (d. 1894) 1833 – Edward Burne-Jones, English artist of the Pre-Raphaelite movement (d. 1898) 1837 – Francis von Hohenstein, duke of Teck (d. 1900) 1840 – Alexander Cameron Sim, Scottish-Japanese pharmacist and businessman, founded Kobe Regatta & Athletic Club (d. 1900) 1853 – Vladimir Shukhov, Russian architect and engineer, designed the Adziogol Lighthouse (d. 1939) 1859 – Matilda Howell, American archer (d. 1938) 1859 – Vittorio Sella, Italian mountaineer and photographer (d. 1943) 1867 – Umberto Giordano, Italian composer and academic (d. 1948) 1878 – George Whipple, American physician and pathologist, Nobel Prize laureate (d. 1976) 1884 – Peter Fraser, Scottish-New Zealand journalist and politician, 24th Prime Minister of New Zealand (d. 1950) 1885 – Vance Palmer, Australian author, playwright, and critic (d. 1959) 1887 – August Kippasto, Estonian-Australian wrestler and poet (d. 1973) 1887 – István Kühár, Slovenian priest and politician (d. 1922) 1888 – Evadne Price, Australian actress, astrologer, and author (d. 1985) 1891 – Benno Schotz, Estonian-Scottish sculptor and engineer (d. 1984) 1894 – Karl Böhm, Austrian conductor and director (d. 1981) 1896 – Firaq Gorakhpuri, Indian author, poet, and critic (d. 1982) 1898 – Charlie Grimm, American baseball player, manager, and sportscaster (d. 1983) 1899 – Charles Boyer, French-American actor, singer, and producer (d. 1978) 1899 – Béla Guttmann, Hungarian footballer and coach (d. 1981) 1899 – Andrei Platonov, Russian author and poet (d. 1951) 1899 – James Wong Howe, Chinese American cinematographer (d. 1976) 1901–present 1903 – Bruno Bettelheim, Austrian-American psychologist and author (d. 1990) 1904 – Secondo Campini, Italian-American engineer (d. 1980) 1904 – Leho Laurine, Estonian chess player (d. 1998) 1905 – Cyril Walters, Welsh-English cricketer (d. 1992) 1906 – John Betjeman, English poet and academic (d. 1984) 1908 – Roger Tory Peterson, American ornithologist and author (d. 1996) 1910 – Morris Graves, American painter and academic (d. 2001) 1910 – Tjalling Koopmans, Dutch-American mathematician and economist Nobel Prize laureate (d. 1985) 1911 – Joseph Luns, Dutch politician and diplomat, 5th Secretary General of NATO (d. 2002) 1913 – Robertson Davies, Canadian journalist, author, and playwright (d. 1995) 1913 – Jack Dreyfus, American businessman, founded the Dreyfus Corporation (d. 2009) 1913 – Lindsay Hassett, Australian cricketer and sportscaster (d. 1993) 1913 – Robert Irving, English conductor and director (d. 1991) 1913 – Terence Reese, English bridge player and author (d. 1996) 1913 – Richard Tucker, American tenor and actor (d. 1975) 1915 – Max Robertson, Bengal-born English sportscaster and author (d. 2009) 1915 – Tasha Tudor, American author and illustrator (d. 2008) 1916 – Hélène Baillargeon, Canadian singer and actress (d. 1997) 1916 – C. Wright Mills American sociologist and author (d. 1962) 1916 – Jack Vance, American author (d. 2013) 1917 – Jack Kirby, American author and illustrator (d. 1994) 1918 – L. B. Cole, American illustrator and publisher (d. 1995) 1919 – Godfrey Hounsfield, English biophysicist and engineer Nobel Prize laureate (d. 2004) 1921 – John Herbert Chapman, Canadian physicist and engineer (d. 1979) 1921 – Fernando Fernán Gómez, Spanish actor, director, and playwright (d. 2007) 1921 – Nancy Kulp, American actress and soldier (d. 1991) 1921 – Lidia Gueiler Tejada, the first female President of Bolivia (d. 2011) 1924 – Janet Frame, New Zealand author and poet (d. 2004) 1924 – Tony MacGibbon, New Zealand cricketer and engineer (d. 2010) 1924 – Peggy Ryan, American actress and dancer (d. 2004) 1924 – Zalman Schachter-Shalomi, Ukrainian-American rabbi and author (d. 2014) 1925 – Billy Grammer, American singer-songwriter and guitarist (d. 2011) 1925 – Donald O'Connor, American actor, singer, and dancer (d. 2003) 1925 – Philip Purser, English author and critic (d. 2022) 1928 – F. William Free, American businessman (d. 2003) 1928 – Vilayat Khan, Indian sitar player and composer (d. 2004) 1929 – István Kertész, Hungarian conductor (d. 1973) 1929 – Roxie Roker, American actress (d. 1995) 1930 – Ben Gazzara, American actor (d. 2012) 1930 – Windsor Davies, British actor (d. 2019) 1931 – Tito Capobianco, Argentinian director and producer (d. 2018) 1931 – Cristina Deutekom, Dutch soprano and actress (d. 2014) 1931 – Ola L. Mize, American colonel, Medal of Honor recipient (d. 2014) 1931 – John Shirley-Quirk, English actor, singer, and educator (d. 2014) 1931 – Roger Williams, English hepatologist and academic (d. 2020) 1932 – Andy Bathgate, Canadian ice hockey player, coach, and manager (d. 2016) 1932 – Yakir Aharonov, Israeli academic and educator 1933 – Philip French, English journalist, critic, and producer (d. 2015) 1933 – Patrick Kalilombe, Malawian bishop and theologian (d. 2012) 1935 – Melvin Charney, Canadian sculptor and architect (d. 2012) 1935 – Gilles Rocheleau, Canadian businessman and politician (d. 1998) 1935 – Sonny Shroyer, American actor 1936 – Don Denkinger, American baseball player and umpire (d. 2023) 1936 – Warren M. Washington, American atmospheric scientist 1938 – Marla Adams, American actress 1938 – Maurizio Costanzo, Italian journalist and academic (d. 2023) 1938 – Marcello Gandini, Italian automotive designer 1938 – Paul Martin, Canadian lawyer and politician, 21st Prime Minister of Canada 1938 – Bengt Fahlström, Swedish journalist (d. 2017) 1939 – John Kingman, English mathematician and academic 1940 – William Cohen, American lawyer and politician, 20th United States Secretary of Defense 1940 – Ken Jenkins, American actor 1940 – Roger Pingeon, French cyclist (d. 2017) 1941 – Michael Craig-Martin, Irish painter and illustrator 1941 – Toomas Leius, Estonian tennis player and coach 1941 – John Stanley Marshall, English drummer 1941 – Paul Plishka, American opera singer 1942 – Wendy Davies, Welsh historian and academic 1942 – Jorge Urosa, Venezuelan cardinal 1943 – Surayud Chulanont, Thai general and politician, 24th Prime Minister of Thailand 1943 – Robert Greenwald, American director and producer 1943 – Shuja Khanzada, Pakistani colonel and politician (d. 2015) 1943 – Lou Piniella, American baseball player and manager 1943 – David Soul, American actor and singer 1943 – Jihad Al-Atrash, Lebanese actor and voice actor 1944 – Marianne Heemskerk, Dutch swimmer 1945 – Bob Segarini, American-Canadian singer-songwriter (d. 2023) 1947 – Emlyn Hughes, English footballer (d. 2004) 1947 – Debra Mooney, American actress 1947 – Liza Wang, Hong Kong actress and singer 1948 – Vonda N. McIntyre, American author (d. 2019) 1948 – Murray Parker, New Zealand cricketer and educator 1948 – Heather Reisman, Canadian publisher and businesswoman 1948 – Danny Seraphine, American drummer and producer 1948 – Elizabeth Wilmshurst, English academic and jurist 1949 – Hugh Cornwell, English singer-songwriter and guitarist 1949 – Svetislav Pešić, Serbian basketball player and coach 1950 – Ron Guidry, American baseball player and coach 1950 – Tony Husband, English cartoonist 1951 – Colin McAdam, Scottish footballer (d. 2013) 1951 – Wayne Osmond, American singer-songwriter and actor 1951 – Keiichi Suzuki, Japanese singer-songwriter 1952 – Jacques Chagnon, Canadian educator and politician 1952 – Rita Dove, American poet and essayist 1952 – Wendelin Wiedeking, German businessman 1953 – Ditmar Jakobs, German footballer 1953 – Tõnu Kaljuste, Estonian conductor and journalist 1954 – Katharine Abraham, American feminist economist 1954 – George M. Church, American geneticist, chemist, and engineer 1954 – John Dorahy, Australian rugby player and coach 1954 – Ravi Kanbur, Indian-English economist and academic 1956 – Luis Guzmán, Puerto Rican-American actor and producer 1956 – John Long, American basketball player 1956 – Steve Whiteman, American singer-songwriter 1957 – Greg Clark, English businessman and politician, Secretary of State for Communities and Local Government 1957 – Ivo Josipović, Croatian lawyer, jurist, and politician, 3rd President of Croatia 1957 – Daniel Stern, American actor and director 1957 – Ai Weiwei, Chinese sculptor and activist 1958 – Scott Hamilton, American figure skater 1959 – Brian Thompson, American actor, director, producer, and screenwriter 1960 – Emma Samms, English actress 1961 – Kim Appleby, English singer-songwriter and actress 1961 – Cliff Benson, American football player 1961 – Jennifer Coolidge, American actress 1961 – Deepak Tijori, Indian actor and director 1961 – Ian Pont, English cricketer and coach 1962 – Paul Allen, English footballer 1962 – Craig Anton, American actor and screenwriter 1962 – David Fincher, American director and producer 1963 – Regina Jacobs, American runner 1963 – Maria Gheorghiu, Romanian folk singer-songwriter 1964 – Lee Janzen, American golfer 1964 – Kaj Leo Johannesen, Faroese footballer and politician, 12th Prime Minister of the Faroe Islands 1965 – Dan Crowley, Australian rugby player 1965 – Sonia Kruger, Australian television host and actress 1965 – Satoshi Tajiri, Japanese video game developer; created Pokémon 1965 – Amanda Tapping, British-Canadian actress and director 1965 – Shania Twain, Canadian singer-songwriter 1966 – Priya Dutt, Indian social worker and politician 1967 – Jamie Osborne, English jockey and trainer 1968 – Billy Boyd, Scottish actor and singer 1969 – Jack Black, American actor and comedian 1969 – Mary McCartney, English photographer and activist 1969 – Jason Priestley, Canadian actor, director, and producer 1969 – Sheryl Sandberg, American business executive 1969 – Pierre Turgeon, Canadian-American ice hockey player 1970 – Melina Aslanidou, German-Greek singer-songwriter 1970 – Rick Recht, American singer-songwriter 1971 – Shane Andrews, American baseball player 1971 – Todd Eldredge, American figure skater and coach 1971 – Janet Evans, American swimmer 1971 – Daniel Goddard, Australian-American actor 1971 – Raúl Márquez, Mexican-American boxer and sportscaster 1972 – Ravindu Shah, Kenyan cricketer 1972 – Jay Witasick, American baseball player and coach 1973 – J. August Richards, American actor 1974 – Johan Andersson, Swedish game designer and programmer 1974 – Takahito Eguchi, Japanese pianist and composer 1974 – Carsten Jancker, German footballer and manager 1975 – Jamie Cureton, English footballer 1975 – Gareth Farrelly, Irish footballer and manager 1975 – Hamish McLachlan, Australian television personality 1975 – Royce Willis, New Zealand rugby player 1976 – Federico Magallanes, Uruguayan footballer 1978 – Karine Turcotte, Canadian weightlifter 1979 – Shaila Dúrcal, Spanish singer-songwriter 1979 – Robert Hoyzer, German footballer and referee 1979 – Kristen Hughes, Australian netball player 1979 – Markus Pröll, German footballer 1979 – Ruth Riley, American basketball player 1980 – Antony Hämäläinen, Finnish singer-songwriter 1980 – Debra Lafave, American sex offender and former teacher 1980 – Ryan Madson, American baseball player 1980 – Jaakko Ojaniemi, Finnish decathlete 1980 – Carly Pope, Canadian actress and producer 1980 – Jonathan Reynolds, English lawyer and politician 1981 – Matt Alrich, American lacrosse player 1981 – Kezia Dugdale, Scottish politician 1981 – Martin Erat, Czech ice hockey player 1981 – Daniel Gygax, Swiss footballer 1981 – Raphael Matos, Brazilian race car driver 1981 – Jake Owen, American singer-songwriter and guitarist 1981 – Ahmed Talbi, Moroccan footballer 1981 – Agata Wróbel, Polish weightlifter 1982 – Anderson Silva de França, Brazilian footballer 1982 – Kevin McNaughton, Scottish footballer 1982 – Thiago Motta, Brazilian-Italian footballer 1982 – Carlos Quentin, American baseball player 1982 – LeAnn Rimes, American singer-songwriter and actress 1983 – Lasith Malinga, Sri Lankan cricketer 1983 – Luke McAlister, New Zealand rugby player 1983 – Lilli Schwarzkopf, German heptathlete 1984 – Will Harris, American baseball player 1985 – Kjetil Jansrud, Norwegian skier 1986 – Jeff Green, American basketball player 1986 – Armie Hammer, American actor 1986 – Tommy Hanson, American baseball player (d. 2015) 1986 – Simon Mannering, New Zealand rugby league player 1986 – Gilad Shalit, Israeli soldier and hostage 1986 – Florence Welch, English singer-songwriter 1987 – Caleb Moore, American snowmobile racer (d. 2013) 1988 – Shalita Grant, American actress 1988 – Rosie MacLennan, Canadian trampoline gymnast 1989 – César Azpilicueta, Spanish footballer 1989 – Valtteri Bottas, Finnish race car driver 1989 – Jo Kwon, South Korean singer and dancer 1989 – Cassadee Pope, American singer-songwriter 1990 – Katie Findlay, Canadian actor 1990 – Bojan Krkić, Spanish footballer 1991 – Felicio Brown Forbes, German footballer 1991 – Samuel Larsen, American actor and singer 1991 – Kyle Massey, American actor 1991 – Andreja Pejić, Bosnian model 1992 – Gabriela Drăgoi, Romanian gymnast 1992 – Bismack Biyombo, Congolese basketball player 1992 – Max Collins, American-Filipino actress and model 1993 – Jakub Sokolík, Czech footballer 1994 – Manon Arcangioli, French tennis player 1994 – Ons Jabeur, Tunisian tennis player 1998 – Weston McKennie, American soccer player 2001 – Kamilla Rakhimova, Russian tennis player 2003 – Quvenzhané Wallis, American actress Deaths Pre-1600 388 – Magnus Maximus, Roman emperor (b. 335) 430 – Augustine of Hippo, Algerian bishop, theologian, and saint (b. 354) 476 – Orestes, Roman general and politician 632 – Fatimah, daughter of Muhammad (b. 605) 683 – Kʼinich Janaab Pakal I, ajaw of the city-state of Palenque (b. 615) 770 – Kōken, emperor of Japan (b. 718) 876 – Louis the German, Frankish king (b. 804) 919 – He Gui, Chinese general (b. 858) 1055 – Xing Zong, Chinese emperor (b. 1016) 1149 – Mu'in ad-Din Unur, Turkish ruler and regent 1231 – Eleanor of Portugal, Queen of Denmark 1341 – Levon IV, king of Armenia (b. 1309) 1406 – John de Sutton V, Baron Sutton of Dudley (b. 1380) 1481 – Afonso V, king of Portugal (b. 1432) 1540 – Federico II Gonzaga, duke of Mantua (b. 1500) 1601–1900 1609 – Francis Vere, English governor and general 1645 – Hugo Grotius, Dutch playwright, philosopher, and jurist (b. 1583) 1646 – Johannes Banfi Hunyades, English-Hungarian alchemist, chemist and metallurgist. (b. 1576) 1648 – George Lisle, English general (b. 1610) 1648 – Charles Lucas, English general (b. 1613) 1654 – Axel Oxenstierna, Swedish lawyer and politician, Lord High Chancellor of Sweden (b. 1583) 1665 – Elisabetta Sirani, Italian painter (b. 1638) 1678 – John Berkeley, 1st Baron Berkeley of Stratton, English soldier and politician, Lord Lieutenant of Ireland (b. 1602) 1735 – Edwin Stead, English landowner and cricketer (b. 1701) 1757 – David Hartley, English psychologist and philosopher (b. 1705) 1784 – Junípero Serra, Spanish priest and missionary (b. 1713) 1793 – Adam Philippe, Comte de Custine, French general (b. 1740) 1805 – Alexander Carlyle, Scottish church leader and author (b. 1722) 1818 – Jean Baptiste Point du Sable, American fur trader, founded Chicago (b. 1750) 1820 – Andrew Ellicott, American surveyor and urban planner (b. 1754) 1832 – Edward Dando, English thief 1839 – William Smith, English geologist and engineer (b. 1769) 1888 – Julius Krohn, Finnish poet and journalist (b. 1835) 1891 – Robert Caldwell, English missionary and linguist (b. 1814) 1900 – Henry Sidgwick, English economist and philosopher (b. 1838) 1901–present 1903 – Frederick Law Olmsted, American journalist and architect, co-designed Central Park (b. 1822) 1919 – Adolf Schmal, Austrian fencer and cyclist (b. 1872) 1934 – Edgeworth David, Welsh-Australian geologist and explorer (b. 1858) 1937 – George Prendergast, Australian politician, 28th Premier of Victoria (b. 1854) 1943 – Georg Hellat, Estonian architect (b. 1870) 1943 – Boris III of Bulgaria (b. 1894) 1955 – Emmett Till, American murder victim (b. 1941) 1959 – Bohuslav Martinů, Czech-American composer and educator (b. 1890) 1965 – Giulio Racah, Italian-Israeli physicist and mathematician (b. 1909) 1968 – Dimitris Pikionis, Greek architect and academic (b. 1887) 1971 – Reuvein Margolies, Israeli author and scholar (b. 1889) 1972 – Prince William of Gloucester (b. 1941) 1975 – Fritz Wotruba, Austrian sculptor (b. 1907) 1976 – Anissa Jones, American actress (b. 1958) 1978 – Bruce Catton, American historian and journalist (b. 1899) 1978 – Robert Shaw, English actor (b. 1927) 1981 – Béla Guttmann, Hungarian footballer, coach, and manager (b. 1899) 1982 – Geoff Chubb, South African cricketer (b. 1911) 1984 – Muhammad Naguib, Egyptian general and politician, 1st President of Egypt (b. 1901) 1985 – Ruth Gordon, American actress and screenwriter (b. 1896) 1986 – Russell Lee, American photographer and journalist (b. 1903) 1987 – John Huston, Irish actor, director, and screenwriter (b. 1906) 1988 – Jean Marchand, Canadian union leader and politician, 43rd Secretary of State for Canada (b. 1918) 1988 – Max Shulman, American author and screenwriter (b. 1919) 1989 – John Steptoe, American author and illustrator (b. 1950) 1990 – Willy Vandersteen, Belgian author and illustrator (b. 1913) 1991 – Alekos Sakellarios, Greek director and screenwriter (b. 1913) 1993 – William Stafford, American poet and academic (b. 1914) 1995 – Earl W. Bascom, American rodeo performer and painter (b. 1906) 1995 – Michael Ende, German scientist and author (b. 1929) 2005 – Jacques Dufilho, French actor (b. 1914) 2005 – Esther Szekeres, Hungarian-Australian mathematician and academic (b. 1910) 2005 – George Szekeres, Hungarian-Australian mathematician and academic (b. 1911) 2006 – Heino Lipp, Estonian shot putter and discus thrower (b. 1922) 2006 – Benoît Sauvageau, Canadian educator and politician (b. 1963) 2006 – Melvin Schwartz, American physicist and academic, Nobel Prize laureate (b. 1932) 2007 – Arthur Jones, American businessman, founded Nautilus, Inc. and MedX Corporation (b. 1926) 2007 – Hilly Kristal, American businessman, founded CBGB (b. 1932) 2007 – Paul MacCready, American engineer and businessman, founded AeroVironment (b. 1925) 2007 – Francisco Umbral, Spanish journalist and author (b. 1935) 2007 – Miyoshi Umeki, Japanese-American actress (b. 1929) 2008 – Phil Hill, American race car driver (b. 1927) 2009 – Adam Goldstein, American drummer, DJ, and producer (b. 1973) 2009 – Richard Egan, US Ambassador, Owner of Dell EMC, Engineer (b. 1963) 2010 – William P. Foster, American bandleader and educator (b. 1919) 2011 – Bernie Gallacher, English footballer (b. 1967) 2012 – Rhodes Boyson, English educator and politician (b. 1925) 2012 – Shulamith Firestone, Canadian-American activist and author (b. 1945) 2012 – Dick McBride, American author, poet, and playwright (b. 1928) 2012 – Saul Merin, Polish-Israeli ophthalmologist and academic (b. 1933) 2012 – Ramón Sota, Spanish golfer (b. 1938) 2013 – John Bellany, Scottish painter and academic (b. 1942) 2013 – Lorella Cedroni, Italian political scientist and philosopher (b. 1961) 2013 – Edmund B. Fitzgerald, American businessman (b. 1926) 2013 – Frank Pulli, American baseball player and umpire (b. 1935) 2013 – Barry Stobart, English footballer (b. 1938) 2013 – Rafael Díaz Ycaza, Ecuadorian journalist, author, and poet (b. 1925) 2014 – Glenn Cornick, English bass guitarist (b. 1947) 2014 – Hal Finney, American cryptographer and programmer (b. 1956) 2014 – John Anthony Walker, American soldier and spy (b. 1937) 2015 – Al Arbour, Canadian-American ice hockey player and coach (b. 1932) 2015 – Mark Krasniqi, Kosovan ethnographer, poet, and translator (b. 1920) 2015 – Nelson Shanks, American painter and educator (b. 1937) 2016 – Juan Gabriel, Mexican singer and songwriter (b. 1950) 2016 – Mr. Fuji, American professional wrestler and manager (b. 1934) 2017 – Mireille Darc, French actress and model (b. 1938) 2020 – Chadwick Boseman, American actor and playwright (b. 1976) Holidays and observances Christian feast day: Alexander of Constantinople Augustine of Hippo Edmund Arrowsmith Hermes Moses the Black August 28 (Eastern Orthodox liturgics) National Grandparents Day (Mexico) References External links Days of the year August

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https://en.wikipedia.org/wiki/Anti-ballistic%20missile

Anti-ballistic missile

An anti-ballistic missile (ABM) is a surface-to-air missile designed to counter ballistic missiles (missile defense). Ballistic missiles are used to deliver nuclear, chemical, biological, or conventional warheads in a ballistic flight trajectory. The term "anti-ballistic missile" is a generic term conveying a system designed to intercept and destroy any type of ballistic threat; however, it is commonly used for systems specifically designed to counter intercontinental ballistic missiles (ICBMs). Current counter-ICBM systems There are a limited number of systems worldwide that can intercept intercontinental ballistic missiles: The Russian A-135 anti-ballistic missile system (renamed in 2017 to A-235) is used for the defense of Moscow. It became operational in 1995 and was preceded by the A-35 anti-ballistic missile system. The system uses Gorgon and Gazelle missiles previously armed with nuclear warheads. These missiles have been updated (2017) and use non-nuclear kinetic interceptors instead, to intercept any incoming ICBMs. The Israeli Arrow 3 system entered operational service in 2017. It is designed for exo-atmosphere interception of ballistic missiles during the spaceflight portion of their trajectory, including those of ICBMs. It may also act as an anti-satellite weapon. The Indian Prithvi Defence Vehicle Mark 2 has the capability to shoot down ICBMs. It has completed developmental trials and is awaiting the Indian government's clearance in order to be deployed. The American Ground-Based Midcourse Defense (GMD) system, formerly known as National Missile Defense (NMD), was first tested in 1997 and had its first successful intercept test in 1999. Instead of using an explosive charge, it launches a hit-to-kill kinetic projectile to intercept an ICBM. The current GMD system is intended to shield the United States mainland against a limited nuclear attack by a rogue state such as North Korea. GMD does not have the ability to protect against an all-out nuclear attack from Russia, as there are currently 44 ground-based interceptors available to counter projectiles headed towards the US. (This interceptor count does not include the THAAD, or Aegis, or Patriot defenses which provide shorter range defence against incoming projectiles.) The Aegis ballistic missile defense-equipped SM-3 Block II-A missile demonstrated it can shoot down an ICBM target on 16 Nov 2020. In a November 2020 test, the US launched a surrogate ICBM from Kwajalein Atoll toward Hawaii in the general direction of the continental US, which triggered a satellite warning to a Colorado Air Force base. In response, launched a missile which destroyed the surrogate ICBM, while still outside the atmosphere. American plans for Central European site During 1993, a symposium was held by western European nations to discuss potential future ballistic missile defence programs. In the end, the council recommended deployment of early warning and surveillance systems as well as regionally controlled defence systems. During spring 2006 reports about negotiations between the United States and Poland as well as the Czech Republic were published. The plans propose the installation of a latest generation ABM system with a radar site in the Czech Republic and the launch site in Poland. The system was announced to be aimed against ICBMs from Iran and North Korea. This caused harsh comments by Russian President Vladimir Putin at the Organization for Security and Co-operation in Europe (OSCE) security conference during spring 2007 in Munich. Other European ministers commented that any change of strategic weapons should be negotiated on NATO level and not 'unilaterally' [sic, actually bilaterally] between the U.S. and other states (although most strategic arms reduction treaties were between the Soviet Union and U.S., not NATO). The German foreign minister Frank-Walter Steinmeier, a Social Democrat, expressed severe concerns about the way in which the U.S. had conveyed its plans to its European partners and criticised the U.S. administration for not having consulted Russia prior to announcing its endeavours to deploy a new missile defence system in Central Europe. According to a July 2007 survey, a majority of Poles were opposed to hosting a component of the system in Poland. By 28 July 2016 Missile Defense Agency planning and agreements had clarified enough to give more details about the Aegis Ashore sites in Romania (2014) and Poland (2018). Current tactical systems People's Republic of China Historical Project 640 Project 640 had been the PRC's indigenous effort to develop ABM capability. The Academy of Anti-Ballistic Missile & Anti-Satellite was established from 1969 for the purpose of developing Project 640. The project was to involve at least three elements, including the necessary sensors and guidance/command system, the Fan Ji (FJ) missile interceptor, and the XianFeng missile-intercepting cannon. The FJ-1 had completed two successful flight tests during 1979, while the low-altitude interceptor FJ-2 completed some successful flight tests using scaled prototypes. A high altitude FJ-3 interceptor was also proposed. Despite the development of missiles, the programme was slowed down due to financial and political reasons. It was finally closed down during 1980 under a new leadership of Deng Xiaoping as it was seemingly deemed unnecessary after the 1972 Anti-Ballistic Missile Treaty between the Soviet Union and the United States and the closure of the US Safeguard ABM system. Operational Chinese system In March 2006, China tested an interceptor system comparable to the U.S. Patriot missiles. China has acquired and is license-producing the S-300PMU-2/S-300PMU-1 series of terminal ABM-capable SAMs. China-produced HQ-9 SAM system may possess terminal ABM capabilities. PRC Navy's operating modern air-defense destroyers known as the Type 052C Destroyer and Type 051C Destroyer are armed with naval HQ-9 missiles. The HQ-19, similar to the THAAD, was first tested in 2003, and subsequently a few more times, including in November 2015. The HQ-29, a counterpart to the MIM-104F PAC-3, was first tested in 2011. Surface-to-air missiles that supposedly have some terminal ABM capability (as opposed to midcourse capability): HQ-29 HQ-19 HQ-18 HQ-15 Development of midcourse ABM in China The technology and experience from the successful anti-satellite test using a ground-launched interceptor during January 2007 was immediately applied to current ABM efforts and development. China carried out a land-based anti-ballistic missile test on 11 January 2010. The test was exoatmospheric and done in midcourse phase and with a kinetic kill vehicle. China is the second country after US that demonstrated intercepting ballistic missile with a kinetic kill vehicle, the interceptor missile was a SC-19. The sources suggest the system is not operationally deployed as of 2010. On 27 January 2013, China did another anti ballistic missile test. According to the Chinese Defence Ministry, the missile launch is defensive in character and is not aimed against any countries. Experts hailed China's technological breakthrough because it is difficult to intercept ballistic missiles that have reached the highest point and speed in the middle of their course. Only two countries, including the US, have successfully conducted such a test in the past decade. On 4 February 2021, China successfully conducted mid-course intercept anti-ballistic missile test. Military analysts indicates that the test and dozens done before reflects China's improvement in the area. Rumored midcourse missiles: DN-3 DN-2 DN-1 HQ-26 France and Italy The Aster is a family of missiles jointly developed by France and Italy. The Aster 30 variants are capable of ballistic missile defense. An export customer, the United Kingdom also operates the Aster 30 Block 0. On 18 October 2010, France announced a successful tactical ABM test of the Aster 30 missile and on 1 December 2011 a successful interception of a Black Sparrow ballistic target missile. The s in French and Italian service, the Royal Navy's Type 45 destroyers, and the French and Italian FREMM-class frigates are all armed with PAAMS (or variants of it) integrating Aster 15 and Aster 30 missiles. France and Italy are developing a new variant, the Aster 30 Block II, which can destroy ballistic missiles up to a maximum range of . It will incorporate a kill vehicle warhead. India India has an active ABM development effort using indigenously developed and integrated radars, and indigenous missiles. In November 2006, India successfully conducted the PADE (Prithvi Air Defence Exercise) in which an anti-ballistic missile, called the Prithvi Air Defence (PAD), an exo-atmospheric (outside the atmosphere) interceptor system, intercepted a Prithvi-II ballistic missile. The PAD missile has the secondary stage of the Prithvi missile and can reach altitude of . During the test, the target missile was intercepted at a altitude. India became the fourth nation in the world after United States, Russia, and Israel to acquire such a capability and the third nation to acquire it using in-house research and development. On 6 December 2007, the Advanced Air Defence (AAD) missile system was tested successfully. This missile is an endo-atmospheric interceptor with an altitude of . First reported in 2009, the Defence Research and Development Organisation (DRDO) is developing a new Prithvi interceptor missile code-named PDV. The PDV is designed to take out the target missile at altitudes above . The first PDV was successfully test fired on 27 April 2014. According to scientist V K Saraswat of the DRDO, the missiles will work in tandem to ensure a hit probability of 99.8 percent. On 15 May 2016, India successfully launched AAD renamed Ashwin from Abdul Kalam Island off the coast of Odisha. As of 8 January 2020, the BMD programme has been completed and the Indian Air Force and the DRDO are awaiting government's final approval before the system is deployed to protect New Delhi and then Mumbai. After these two cities, it will be deployed in other major cities and regions. India has structured a five-layer missile shield for Delhi as of 9 June 2019: PAD and PDV are designed for mid-course interception, while AAD is for terminal phase interception. Outermost BMD layer at endo- and exo-atmospheric altitudes (15–25 km, and 80–100 km) for 2000 km ranges XRSAM and S-400 layer at ranges of 40, 120, 200, 250, 350 & 400 km Barak-8 layer at ranges of 70–100 km Akash, Akash-NG layer at ranges of 30–35 km Surface to air missiles and gun systems as the inner-most ring of defense. Previously planned to acquire NASAMS-II. But Indian Air Force deterred by high cost is now looking at domestic alternative (potentially land-based VL-SRSAM). The current Phase-1 of the Indian ABM system can intercept ballistic missiles of range up to 2,000 km and the Phase-2 will increase it up to 5,000 km. Israel Arrow 2 The Arrow project was begun after the U.S. and Israel agreed to co-fund it on 6 May 1986. The Arrow ABM system was designed and constructed in Israel with financial support by the United States by a multibillion-dollar development program called "Minhelet Homa" (Wall Administration) with the participation of companies like Israel Military Industries, Tadiran and Israel Aerospace Industries. During 1998 the Israeli military conducted a successful test of their Arrow missile. Designed to intercept incoming missiles travelling at up to 2-mile/s (3 km/s), the Arrow is expected to perform much better than the Patriot did in the Gulf War. On 29 July 2004 Israel and the United States carried out a joint experiment in the US, in which the Arrow was launched against a real Scud missile. The experiment was a success, as the Arrow destroyed the Scud with a direct hit. During December 2005 the system was deployed successfully in a test against a replicated Shahab-3 missile. This feat was repeated on 11 February 2007. Arrow 3 The Arrow 3 system is capable of exo-atmosphere interception of ballistic missiles, including of ICBMs. It also acts as an anti-satellite weapon. Lieutenant General Patrick J. O'Reilly, Director of the US Missile Defense Agency, said: "The design of Arrow 3 promises to be an extremely capable system, more advanced than what we have ever attempted in the U.S. with our programs." On 10 December 2015 Arrow 3 scored its first intercept in a complex test designed to validate how the system can detect, identify, track and then discriminate real from decoy targets delivered into space by an improved Silver Sparrow target missile. According to officials, the milestone test paves the way toward low-rate initial production of the Arrow 3. David’s sling David's Sling (Hebrew: קלע דוד), also sometimes called Magic Wand (Hebrew: שרביט קסמים), is an Israel Defense Forces military system being jointly developed by the Israeli defense contractor Rafael Advanced Defense Systems and the American defense contractor Raytheon, designed to intercept tactical ballistic missiles, as well as medium- to long-range rockets and slower-flying cruise missiles, such as those possessed by Hezbollah, fired at ranges from 40 km to 300 km. It is designed with the aim of intercepting the newest generation of tactical ballistic missiles, such as Iskander. Japan Since 1998, when North Korea launched a Taepodong-1 missile over northern Japan, the Japanese have been jointly developing a new surface-to-air interceptor known as the Patriot Advanced Capability 3 (PAC-3) with the US. Tests have been successful, and there are 11 locations that are planned for the PAC-3 to be installed. The approximate locations are near major air bases, like Kadena Air Base, and ammunition storage centers of the Japanese military. The exact location are not known to the public. A military spokesman said that tests had been done on two sites, one of them a business park in central Tokyo, and Ichigaya – a site not far from the Imperial Palace. Along with the PAC-3, Japan has installed a US-developed ship-based anti-ballistic missile system, which was tested successfully on 18 December 2007. Japan has 4 destroyers of this type capable of carrying RIM-161 Standard Missile 3 and equipped with the Aegis Ballistic Missile Defense System. Japan is currently modifying another 4 destroyers so that they can take part of their defense force against ballistic missiles, bringing the total number to 8 ships. Soviet Union/Russian Federation The Moscow ABM defense system was designed with the aim of being able to intercept the ICBM warheads aimed at Moscow and other important industrial regions, and is based on: A-35 Aldan ABM-1 Galosh / 5V61 (decommissioned) A-35M ABM-1B (decommissioned) A-135 Amur ABM-3 Gazelle / 53T6 ABM-4 Gorgon / 51T6 (decommissioned) A–235 Nudol (In development) Apart from the main Moscow deployment, Russia has striven actively for intrinsic ABM capabilities of its SAM systems. S-300P (SA-10) S-300V/V4 (SA-12) S-300PMU-1/2 (SA-20) S-400 (SA-21) S-500 Prometey (serial production began in 2021) United States In several tests, the U.S. military have demonstrated the feasibility of destroying long and short range ballistic missiles. Combat effectiveness of newer systems against 1950s tactical ballistic missiles seems very high, as the MIM-104 Patriot (PAC-1 and PAC-2) had a 100% success rate in Operation Iraqi Freedom. The U.S. Navy Aegis Ballistic Missile Defense System (Aegis BMD) uses RIM-161 Standard Missile 3, which hit a target going faster than ICBM warheads. On 16 November 2020 an SM-3 Block IIA interceptor successfully destroyed an ICBM in mid-course, under Link-16 Command and Control, Battle Management, and Communications (C2BMC). The U.S. Army Terminal High Altitude Area Defense (THAAD) system began production in 2008. Its stated range as a short to intermediate ballistic missile interceptor means that it is not designed to hit midcourse ICBMs, which can reach terminal phase speeds of mach 8 or greater. The THAAD interceptor has a reported maximum speed of mach 8, and THAAD has repeatedly proven it can intercept descending exoatmospheric missiles in a ballistic trajectory. The U.S. Army Ground-Based Midcourse Defense (GMD) system was developed by the Missile Defense Agency. It combines ground-based AN/FPS-132 Upgraded Early Warning Radar installations and mobile AN/TPY-2 X-band radars with 44 exoatmospheric interceptors stationed in underground silos around California and Alaska, to protect against low-count ICBM attacks from rogue states. Each Ground-Based Interceptor (GBI) rocket carries an Exoatmospheric Kill Vehicle (EKV) kinetic kill interceptor, with 97% probability of intercept when four interceptors are launched at the target. Since 2004, the United States Army plans to replace Raytheon's Patriot missile (SAM) engagement control station (ECS), along with seven other forms of ABM defense command systems, with Integrated Air and Missile Defense Battle Command System (IBCS) designed to shoot down short, medium, and intermediate range ballistic missiles in their terminal phase by intercepting with a hit-to-kill approach. Northrop Grumman was selected as the prime contractor in 2010; the Army spent $2.7 billion on the program between 2009 and 2020. IBCS engagement stations will support identification and tracking of targets using sensor fusion from disparate data streams, and selection of appropriate kill vehicles from available launcher systems. In February 2022 THAAD radar and TFCC (THAAD Fire Control & Communication) demonstrated their interoperability with Patriot PAC-3 MSE missile launchers, engaging targets using both THAAD and Patriot interceptors. Kestrel eye is a cubesat swarm designed to produce a picture of a designated ground target, and to relay the picture to the ground Warfighter every 10 minutes. Republic of China Procurement of MIM-104 Patriot and indigenous Tien-Kung anti-ballistic missile systems. With the tense situations with China, Taiwan developed the Sky Bow (or Tien-Kung), this surface-to-air missile can intercept and destroy enemy aircraft and ballistic missiles. These system was created in partnership with Raytheon Technologies, using Lockheed Martin ADAR-HP as inspiration to create the Chang Bai S-band radar system. The missiles have a range of 200 km and was designed to take on fast moving vehicles with low radar cross-section. The latest variant of this system is the Sky Bow III (TK-3). South Korea Since North Korea started developing its nuclear weapon program, South Korea has been under imminent danger. South Korea started its BDM program by acquiring 8 batteries of the MIM-104 Patriot (PAC-2) missiles from the United States. The PAC-2 was developed to destroy incoming aircraft and is now unreliable in defending a ballistic missile attack from North Korea, as they have developed further their nuclear program. As of 2018, South Korea decided to improve its defense system by upgrading to the PAC-3, which has a hit-to-kill capability against incoming missiles. The main reason that the South Korean anti-ballistic defense system is not very developed is because they have tried to developed their own, without help from other countries, since the beginning of the 1990's. The South Korean Defense Acquisition Program Administration (DAPA) has confirmed that it has test launched the L-SAM system on February 2022. This particular missile has been in development since 2019 and is South Korea's next anti-ballistic missile generation. It is expected to have a range of 150 km and be able to intercept targets between 40 km and 100 km of altitude, and it can also be used as an aircraft interceptor. The L-SAM system is expected to be complete and ready to use in 2024. History 1940s and 1950s The idea of destroying rockets before they can hit their target dates from the first use of modern missiles in warfare, the German V-1 and V-2 program of World War II. British fighters destroyed some V-1 "buzz bombs" in flight, although concentrated barrages of heavy anti-aircraft artillery had greater success. Under the lend-lease program, 200 US 90 mm AA guns with SCR-584 radars and Western Electric/Bell Labs computers were sent to the UK. These demonstrated a 95% success rate against V-1s that flew into their range. The V-2, the first true ballistic missile, has no known record of being destroyed in the air. SCR-584's could be used to plot the trajectories of the missiles and provide some warning, but were more useful in backtracking their ballistic trajectory and determining the rough launch locations. The Allies launched Operation Crossbow to find and destroy V-2s before launch, but these operations were largely ineffective. In one instance a Spitfire happened upon a V-2 rising through the trees, and fired on it with no effect. This led to allied efforts to capture launching sites in Belgium and the Netherlands. A wartime study by Bell Labs into the task of shooting down ballistic missiles in flight concluded it was not possible. In order to intercept a missile, one needs to be able to steer the attack onto the missile before it hits. A V-2's speed would require guns of effectively instantaneous reaction time, or some sort of weapon with ranges on the order of dozens of miles, neither of which appeared possible. This was, however, just before the emergence of high-speed computing systems. By the mid-1950s, things had changed considerably, and many forces worldwide were considering ABM systems. The American armed forces began experimenting with anti-missile missiles soon after World War II, as the extent of German research into rocketry became clear. Project Wizard began in 1946, with the aim of creating a missile capable of intercepting the V-2. But defences against Soviet long-range bombers took priority until 1957, when the Soviet Union demonstrated its advances in ICBM technology with the launch of Sputnik, the Earth's first artificial satellite. The US Army accelerated development of their LIM-49 Nike Zeus system in response. Zeus was criticized throughout its development program, especially from those within the US Air Force and nuclear weapons establishments who suggested it would be much simpler to build more nuclear warheads and guarantee mutually assured destruction. Zeus was eventually cancelled in 1963. In 1958, the U.S. sought to explore whether airbursting nuclear weapons might be used to ward off ICBMs. It conducted several test explosions of low-yield nuclear weapons – 1.7kt boosted fission W25 warheads – launched from ships to very high altitudes over the southern Atlantic Ocean. Such an explosion releases a burst of X-rays in the Earth's atmosphere, causing secondary showers of charged particles over an area hundreds of miles across. These can become trapped in the Earth' magnetic field, creating an artificial radiation belt. It was believed that this might be strong enough to damage warheads traveling through the layer. This proved not to be the case, but Argus returned key data about a related effect, the nuclear electromagnetic pulse (NEMP). Canada Other countries were also involved in early ABM research. A more advanced project was at CARDE in Canada, which researched the main problems of ABM systems. A key problem with any radar system is that the signal is in the form of a cone, which spreads with distance from the transmitter. For long-distance interceptions like ABM systems, the inherent inaccuracy of the radar makes an interception difficult. CARDE considered using a terminal guidance system to address the accuracy concerns, and developed several advanced infrared detectors for this role. They also studied a number of missile airframe designs, a new and much more powerful solid rocket fuel, and numerous systems for testing it all. After a series of drastic budget reductions during the late 1950s the research ended. One offshoot of the project was Gerald Bull's system for inexpensive high-speed testing, consisting of missile airframes shot from a sabot round, which would later be the basis of Project HARP. Another was the CRV7 and Black Brant rockets, which used the new solid rocket fuel. Soviet Union The Soviet military had requested funding for ABM research as early as 1953, but were only given the go-ahead to begin deployment of such a system on 17 August 1956. Their test system, known simply as System A, was based on the V-1000 missile, which was similar to the early US efforts. The first successful test interception was carried out on 24 November 1960, and the first with a live warhead on 4 March 1961. In this test, a dummy warhead was released by a R-12 ballistic missile launched from the Kapustin Yar, and intercepted by a V-1000 launched from Sary-Shagan. The dummy warhead was destroyed by the impact of 16,000 tungsten-carbide spherical impactors 140 seconds after launch, at an altitude of . The V-1000 missile system was nonetheless considered not reliable enough and abandoned in favour of nuclear-armed ABMs. A much larger missile, the Fakel 5V61 (known in the west as Galosh), was developed to carry the larger warhead and carry it much further from the launch site. Further development continued, and the A-35 anti-ballistic missile system, designed to protect Moscow, became operational in 1971. A-35 was designed for exoatmospheric interceptions, and would have been highly susceptible to a well-arranged attack using multiple warheads and radar black-out techniques. A-35 was upgraded during the 1980s to a two-layer system, the A-135. The Gorgon (SH-11/ABM-4) long-range missile was designed to handle intercepts outside the atmosphere, and the Gazelle (SH-08/ABM-3) short-range missile endoatmospheric intercepts that eluded Gorgon. The A-135 system is considered to be technologically equivalent to the United States Safeguard system of 1975. American Nike-X and Sentinel Nike Zeus failed to be a credible defence in an era of rapidly increasing ICBM counts due to its ability to attack only one target at a time. Additionally, significant concerns about its ability to successfully intercept warheads in the presence of high-altitude nuclear explosions, including its own, lead to the conclusion that the system would simply be too costly for the very low amount of protection it could provide. By the time it was cancelled in 1963, potential upgrades had been explored for some time. Among these were radars capable of scanning much greater volumes of space and able to track many warheads and launch several missiles at once. These, however, did not address the problems identified with radar blackouts caused by high-altitude explosions. To address this need, a new missile with extreme performance was designed to attack incoming warheads at much lower altitudes, as low as 20 km. The new project encompassing all of these upgrades was launched as Nike-X. The main missile was LIM-49 Spartan—a Nike Zeus upgraded for longer range and a much larger 5 megaton warhead intended to destroy enemy's warheads with a burst of x-rays outside the atmosphere. A second shorter-range missile called Sprint with very high acceleration was added to handle warheads that evaded longer-ranged Spartan. Sprint was a very fast missile (some sources claimed it accelerated to 8,000 mph (13 000 km/h) within 4 seconds of flight—an average acceleration of 90 g) and had a smaller W66 enhanced radiation warhead in the 1–3 kiloton range for in-atmosphere interceptions. The experimental success of Nike X persuaded the Lyndon B. Johnson administration to propose a thin ABM defense, that could provide almost complete coverage of the United States. In a September 1967 speech, Defense Secretary Robert McNamara referred to it as "Sentinel". McNamara, a private ABM opponent because of cost and feasibility (see cost-exchange ratio), claimed that Sentinel would be directed not against the Soviet Union's missiles (since the USSR had more than enough missiles to overwhelm any American defense), but rather against the potential nuclear threat of the People's Republic of China. In the meantime, a public debate over the merit of ABMs began. Difficulties that had already made an ABM system questionable for defending against an all-out attack. One problem was the Fractional Orbital Bombardment System (FOBS) that would give little warning to the defense. Another problem was high altitude EMP (whether from offensive or defensive nuclear warheads) which could degrade defensive radar systems. When this proved infeasible for economic reasons, a much smaller deployment using the same systems was proposed, namely Safeguard (described later). Defense against MIRVs ABM systems were developed initially to counter single warheads launched from large intercontinental ballistic missiles (ICBMs). The economics seemed simple enough; since rocket costs increase rapidly with size, the price of the ICBM launching a large warhead should always be greater than the much smaller interceptor missile needed to destroy it. In an arms race the defense would always win. In addition to the blast effect, the detonation of nuclear devices against attacking intercontinental ballistic missiles produces a neutron kill effect from the strong radiation emitted, and this neutralizes the warhead, or warheads, of the attacking missile. Most A.B.M. devices depend on neutron kill for their effectiveness. In practice, the price of the interceptor missile was considerable, due to its sophistication. The system had to be guided all the way to an interception, which demanded guidance and control systems that worked within and outside the atmosphere. Due to their relatively short ranges, an ABM missile would be needed to counter an ICBM wherever it might be aimed. That implies that dozens of interceptors are needed for every ICBM since warhead's targets couldn't be known in advance. This led to intense debates about the "cost-exchange ratio" between interceptors and warheads. Conditions changed dramatically in 1970 with the introduction of multiple independently targetable reentry vehicle (MIRV) warheads. Suddenly, each launcher was throwing not one warhead, but several. These would spread out in space, ensuring that a single interceptor would be needed for each warhead. This simply added to the need to have several interceptors for each warhead in order to provide geographical coverage. Now it was clear that an ABM system would always be many times more expensive than the ICBMs they defended against. Anti-Ballistic Missile Treaty of 1972 Technical, economic and political problems described resulted in the ABM treaty of 1972, which restricted the deployment of strategic (not tactical) anti-ballistic missiles. By the ABM treaty and a 1974 revision, each country was allowed to deploy a mere 100 ABMs to protect a single, small area. The Soviets retained their Moscow defences. The U.S. designated their ICBM sites near Grand Forks Air Force Base, North Dakota, where Safeguard was already under advanced development. The radar systems and anti-ballistic missiles were approximately 90 miles north/northwest of Grand Forks AFB, near Concrete, North Dakota. The missiles were deactivated in 1975. The main radar site (PARCS) is still used as an early warning ICBM radar, facing relative north. It is located at Cavalier Air Force Station, North Dakota. Brief use of Safeguard in 1975/1976 The U.S. Safeguard system, which utilized the nuclear-tipped LIM-49A Spartan and Sprint missiles, in the short operational period of 1975/1976, was the second counter-ICBMs system in the world. Safeguard protected only the main fields of US ICBMs from attack, theoretically ensuring that an attack could be responded to with a US launch, enforcing the mutually assured destruction principle. SDI experiments in the 1980s The Reagan-era Strategic Defense Initiative (often referred to as "Star Wars"), along with research into various energy-beam weaponry, brought new interest in the area of ABM technologies. SDI was an extremely ambitious program to provide a total shield against a massive Soviet ICBM attack. The initial concept envisioned large sophisticated orbiting laser battle stations, space-based relay mirrors, and nuclear-pumped X-ray laser satellites. Later research indicated that some planned technologies such as X-ray lasers were not feasible with then-current technology. As research continued, SDI evolved through various concepts as designers struggled with the difficulty of such a large complex defense system. SDI remained a research program and was never deployed. Several post-SDI technologies are used by the present Missile Defense Agency (MDA). Lasers originally developed for the SDI plan are in use for astronomical observations. Used to ionize gas in the upper atmosphere, they provide telescope operators with a target to calibrate their instruments. Tactical ABMs deployed in 1990s The Israeli Arrow missile system was tested initially during 1990, before the first Gulf War. The Arrow was supported by the United States throughout the 1990s. The Patriot was the first deployed tactical ABM system, although it was not designed from the outset for that task and consequently had limitations. It was used during the 1991 Gulf War to attempt to intercept Iraqi Scud missiles. Post-war analyses show that the Patriot was much less effective than initially thought because of its radar and control system's inability to discriminate warheads from other objects when the Scud missiles broke up during reentry. Testing ABM technology continued during the 1990s with mixed success. After the Gulf War, improvements were made to several U.S. air defense systems. A new Patriot, PAC-3, was developed and tested—a complete redesign of the PAC-2 deployed during the war, including a totally new missile. The improved guidance, radar and missile performance improves the probability of kill over the earlier PAC-2. During Operation Iraqi Freedom, Patriot batteries engaged 100% of enemy TBM's within their engagement territory. Of these engagements, 8 of them were verified as kills by multiple independent sensors; the remaining was listed as a probable kill due to lack of independent verification. Patriot was involved in three friendly fire incidents: two incidents of Patriot shootings at coalition aircraft and one of U.S. aircraft shooting at a Patriot battery. A new version of the Hawk missile was tested during the early to mid-1990s and by the end of 1998 the majority of US Marine Corps Hawk systems were modified to support basic theater anti-ballistic missile capabilities. The MIM-23 Hawk missile is not operational in U.S. service since 2002, but is used by many other countries. Soon after the Gulf War, the Aegis Combat System was expanded to include ABM capabilities. The Standard missile system was also enhanced and tested for ballistic missile interception. During the late 1990s, SM-2 block IVA missiles were tested in a theater ballistic missile defense function. Standard Missile 3 (SM-3) systems have also been tested for an ABM role. In 2008, an SM-3 missile launched from the , successfully intercepted a non-functioning satellite. Brilliant Pebbles concept Approved for acquisition by the Pentagon during 1991 but never realized, Brilliant Pebbles was a proposed space-based anti-ballistic system that was meant to avoid some of the problems of the earlier SDI concepts. Rather than use sophisticated large laser battle stations and nuclear-pumped X-ray laser satellites, Brilliant Pebbles consisted of a thousand very small, intelligent orbiting satellites with kinetic warheads. The system relied on improvements of computer technology, avoided problems with overly centralized command and control and risky, expensive development of large, complicated space defense satellites. It promised to be much less expensive to develop and have less technical development risk. The name Brilliant Pebbles comes from the small size of the satellite interceptors and great computational power enabling more autonomous targeting. Rather than rely exclusively on ground-based control, the many small interceptors would cooperatively communicate among themselves and target a large swarm of ICBM warheads in space or in the late boost phase. Development was discontinued later in favor of a limited ground-based defense. Transformation of SDI into MDA, development of NMD/GMD While the Reagan era Strategic Defense Initiative was intended to shield against a massive Soviet attack, during the early 1990s, President George H. W. Bush called for a more limited version using rocket-launched interceptors based on the ground at a single site. Such system was developed since 1992, was expected to become operational in 2010 and capable of intercepting small number of incoming ICBMs. First called the National Missile Defense (NMD), since 2002 it was renamed Ground-Based Midcourse Defense (GMD). It was planned to protect all 50 states from a rogue missile attack. The Alaska site provides more protection against North Korean missiles or accidental launches from Russia or China, but is likely less effective against missiles launched from the Middle East. The Alaska interceptors may be augmented later by the naval Aegis Ballistic Missile Defense System or by ground-based missiles in other locations. During 1998, Defense Secretary William Cohen proposed spending an additional $6.6 billion on intercontinental ballistic missile defense programs to build a system to protect against attacks from North Korea or accidental launches from Russia or China. In terms of organization, during 1993 SDI was reorganized as the Ballistic Missile Defense Organization. In 2002, it was renamed to Missile Defense Agency (MDA). 21st century On 13 June 2002, the United States withdrew from the Anti-Ballistic Missile Treaty and recommenced developing missile defense systems that would have formerly been prohibited by the bilateral treaty. The action was stated as needed to defend against the possibility of a missile attack conducted by a rogue state. The next day, the Russian Federation dropped the START II agreement, intended to completely ban MIRVs. The Lisbon Summit of 2010 saw the adoption of a NATO program that was formed in response to the threat of a rapid increase of ballistic missiles from potentially unfriendly regimes, though no specific region, state, or country was formally mentioned. This adoption came from the recognition of territorial missile defense as a core alliance objective. At this time, Iran was seen as the likely aggressor that eventually led to the adoption of this ABM system, as Iran has the largest missile arsenal of the Middle East, as well as a space program. From this summit, NATO's ABM system was potentially seen as a threat by Russia, who felt that their ability to retaliate any perceived nuclear threats would be degraded. To combat this, Russia proposed that any ABM system enacted by NATO must be universal to operate, cover the entirety of the European continent, and not upset any nuclear parity. The United States actively sought NATO involvement in the creation of an ABM system, and saw an Iranian threat as a sufficient reason to warrant its creation. The United States also had plans to create missile defense facilities, but NATO officials feared that it would have provided protection to Europe, it would have detracted from the responsibility of NATO for collective defense. The officials also argued the potential prospect of U.S-commanded operation system that would work in conjunction with the Article 5 defense of NATO. On 15 December 2016, the US Army SMDC had a successful test of a U.S. Army Zombie Pathfinder rocket, to be used as a target for exercising various anti-ballistic missile scenarios. The rocket was launched as part of NASA's sounding rocket program, at White Sands Missile Range. In November 2020, the US successfully destroyed a dummy ICBM. The ICBM was launched from Kwajalein Atoll in the general direction of Hawaii, triggering a satellite warning to a Colorado Air Force base, which then contacted the . The ship launched a SM-3 Block IIA missile to destroy the US dummy, still outside the atmosphere. See also 2010 Chinese anti-ballistic missile test Aegis Ballistic Missile Defense System Atmospheric entry Command systems in the United States Army Indian Ballistic Missile Defence Programme Kinetic kill vehicle Missile defense Anti-torpedo torpedoes Multiple Kill Vehicle National Missile Defense Nuclear disarmament Nuclear proliferation Nuclear warfare Safeguard/Sentinel ABM system Spartan (missile) Sprint (missile) Terminal High Altitude Area Defense Notes Citations General sources Murdock, Clark A. (1974), Defense Policy Formation: A Comparative Analysis of the McNamara Era. SUNY Press. Further reading Laura Grego and David Wright, "Broken Shield: Missiles designed to destroy incoming nuclear warheads fail frequently in tests and could increase global risk of mass destruction", Scientific American, vol. 320, no. no. 6 (June 2019), pp. 62–67. "Current U.S. missile defense plans are being driven largely by technology, politics and fear. Missile defenses will not allow us to escape our vulnerability to nuclear weapons. Instead large-scale developments will create barriers to taking real steps toward reducing nuclear risks—by blocking further cuts in nuclear arsenals and potentially spurring new deployments." (p. 67.) External links Article on Missile Threat Shift to the Black Sea region Video of the Endo-Atmospheric Interceptor missile system test by India Video of the Exo-Atmospheric interceptor missile system test by India Center for Defense Information Federation of American Scientists MissileThreat.com Stanley R. Mickelson Safeguard complex History of U.S. Air Defense Systems Missile defense Missile types Russian inventions Surface-to-air missiles

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https://en.wikipedia.org/wiki/August%2029

August 29

Events Pre-1600 708 – Copper coins are minted in Japan for the first time (Traditional Japanese date: August 10, 708). 870 – The city of Melite surrenders to an Aghlabid army following a siege, putting an end to Byzantine Malta. 1009 – Mainz Cathedral suffers extensive damage from a fire, which destroys the building on the day of its inauguration. 1219 – The Battle of Fariskur occurs during the Fifth Crusade. 1261 – Pope Urban IV succeeds Pope Alexander IV, becoming the 182nd pope. 1315 – Battle of Montecatini: The army of the Republic of Pisa, commanded by Uguccione della Faggiuola, wins a decisive victory against the joint forces of the Kingdom of Naples and the Republic of Florence despite being outnumbered. 1350 – Battle of Winchelsea (or Les Espagnols sur Mer): The English naval fleet under King Edward III defeats a Castilian fleet of 40 ships. 1475 – The Treaty of Picquigny ends a brief war between the kingdoms of France and England. 1484 – Pope Innocent VIII succeeds Pope Sixtus IV. 1498 – Vasco da Gama decides to depart Calicut and return to the Kingdom of Portugal. 1521 – The Ottoman Turks capture Nándorfehérvár (Belgrade). 1526 – Battle of Mohács: The Ottoman Turks led by Suleiman the Magnificent defeat and kill the last Jagiellonian king of Hungary and Bohemia. 1541 – The Ottoman Turks capture Buda, the capital of the Hungarian Kingdom. 1588 – Toyotomi Hideyoshi issues a nationwide sword hunting ordinance, disarming the peasantry so as to firmly separate the samurai and commoner classes, prevent peasant uprisings, and further centralise his own power. 1601–1900 1728 – The city of Nuuk in Greenland is founded as the fort of Godt-Haab by the royal governor Claus Paarss. 1741 – The eruption of Oshima–Ōshima and the Kampo tsunami: At least 2,000 people along the Japanese coast drown in a tsunami caused by the eruption of Oshima. 1756 – Frederick the Great attacks Saxony, beginning the Seven Years' War in Europe. 1758 – The Treaty of Easton establishes the first American Indian reservation, at Indian Mills, New Jersey, for the Lenape. 1778 – American Revolutionary War: British and American forces battle indecisively at the Battle of Rhode Island. 1779 – American Revolutionary War: American forces battle and defeat the British and Iroquois forces at the Battle of Newtown. 1786 – Shays' Rebellion, an armed uprising of Massachusetts farmers, begins in response to high debt and tax burdens. 1807 – British troops under Sir Arthur Wellesley defeat a Danish militia outside Copenhagen in the Battle of Køge. 1825 – Portuguese and Brazilian diplomats sign the Treaty of Rio de Janeiro, which has Portugal recognise Brazilian independence, formally ending the Brazilian war of independence. The treaty will be ratified by the King of Portugal three months later. 1831 – Michael Faraday discovers electromagnetic induction. 1842 – Treaty of Nanking signing ends the First Opium War. 1861 – American Civil War: The Battle of Hatteras Inlet Batteries gives Federal forces control of Pamlico Sound. 1869 – The Mount Washington Cog Railway opens, making it the world's first mountain-climbing rack railway. 1871 – Emperor Meiji orders the abolition of the han system and the establishment of prefectures as local centers of administration. (Traditional Japanese date: July 14, 1871). 1885 – Gottlieb Daimler patents the world's first internal combustion motorcycle, the Reitwagen. 1898 – The Goodyear tire company is founded in Akron, Ohio. 1901–present 1903 – The , the last of the five s, is launched. 1907 – The Quebec Bridge collapses during construction, killing 75 workers. 1910 – The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea. 1911 – Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California. 1911 – The Canadian Naval Service becomes the Royal Canadian Navy. 1912 – A typhoon strikes China, killing at least 50,000 people. 1914 – World War I: Start of the Battle of St. Quentin in which the French Fifth Army counter-attacked the invading Germans at Saint-Quentin, Aisne. 1915 – US Navy salvage divers raise , the first U.S. submarine sunk in an accident. 1916 – The United States passes the Philippine Autonomy Act. 1918 – World War I: Bapaume taken by the New Zealand Division in the Hundred Days Offensive. 1930 – The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland. 1941 – World War II: Tallinn, the capital of Estonia, is occupied by Nazi Germany following an occupation by the Soviet Union. 1943 – World War II: German-occupied Denmark scuttles most of its navy; Germany dissolves the Danish government. 1944 – World War II: Slovak National Uprising takes place as 60,000 Slovak troops turn against the Nazis. 1948 – Northwest Airlines Flight 421 crashes in Fountain City, Wisconsin, killing all 37 aboard. 1949 – Soviet atomic bomb project: The Soviet Union tests its first atomic bomb, known as First Lightning or Joe 1, at Semipalatinsk, Kazakhstan. 1950 – Korean War: British Commonwealth Forces Korea arrives to bolster the US presence. 1952 – American experimental composer John Cage’s 4’33” premieres at Maverick Concert Hall, played by American pianist David Tudor. 1958 – United States Air Force Academy opens in Colorado Springs, Colorado. 1960 – Air France Flight 343 crashes on approach to Yoff Airport in Senegal, killing all 63 aboard. 1965 – The Gemini V spacecraft returns to Earth, landing in the Atlantic Ocean. 1966 – The Beatles perform their last concert before paying fans at Candlestick Park in San Francisco. 1966 – Leading Egyptian thinker Sayyid Qutb is executed for plotting the assassination of President Gamal Abdel Nasser. 1970 – Chicano Moratorium against the Vietnam War, East Los Angeles, California. Police riot kills three people, including journalist Rubén Salazar. 1975 – El Tacnazo: Peruvian Prime Minister Francisco Morales Bermúdez carries out a coup d’état in the city of Tacna, forcing the sitting President of Peru, Juan Velasco Alvarado, to resign and assuming his place as the new President. 1982 – The synthetic chemical element Meitnerium, atomic number 109, is first synthesized at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany. 1987 – Odaeyang mass suicide: Thirty-three individuals linked to a religious cult are found dead in the attic of a cafeteria in Yongin, South Korea. Investigators attribute their deaths to a murder-suicide pact. 1991 – Supreme Soviet of the Soviet Union suspends all activities of the Soviet Communist Party. 1991 – Libero Grassi, an Italian businessman from Palermo, is killed by the Sicilian Mafia after taking a solitary stand against their extortion demands. 1996 – Vnukovo Airlines Flight 2801, a Tupolev Tu-154, crashes into a mountain on the Arctic island of Spitsbergen, killing all 141 aboard. 1997 – Netflix is launched as an internet DVD rental service. 1997 – At least 98 villagers are killed by the Armed Islamic Group of Algeria GIA in the Rais massacre, Algeria. 1998 – Eighty people are killed when Cubana de Aviación Flight 389 crashes during a rejected takeoff from the Old Mariscal Sucre International Airport in Quito, Ecuador. 2001 – Four people are killed when Binter Mediterráneo Flight 8261 crashes into the N-340 highway near Málaga Airport. 2003 – Sayed Ayatollah Mohammed Baqir al-Hakim, the Shia Muslim leader in Iraq, is assassinated in a terrorist bombing, along with nearly 100 worshippers as they leave a mosque in Najaf. 2005 – Hurricane Katrina devastates much of the U.S. Gulf Coast from Louisiana to the Florida Panhandle, killing up to 1,836 people and causing $125 billion in damage. 2012 – At least 26 Chinese miners are killed and 21 missing after a blast in the Xiaojiawan coal mine, located at Panzhihua, Sichuan Province. 2012 – The XIV Paralympic Games open in London, England, United Kingdom. 2022 – Russo-Ukrainian War: Ukraine begins its southern counteroffensive in the Kherson Oblast, eventually culminating in the liberation of the city of Kherson. Births Pre-1600 979 – Otto (or Eudes), French nobleman (d. 1045) 1321 – John of Artois, French nobleman (d. 1387) 1347 – John Hastings, 2nd Earl of Pembroke, English nobleman and soldier (d. 1375) 1434 – Janus Pannonius, Hungarian bishop and poet (d. 1472) 1514 – García Álvarez de Toledo, 4th Marquis of Villafranca, Spanish noble and admiral (d. 1577) 1534 – Nicholas Pieck, Dutch Franciscan friar and martyr (d. 1572) 1597 – Henry Gage, Royalist officer in the English Civil War (d. 1645) 1601–1900 1619 – Jean-Baptiste Colbert, French economist and politician, Controller-General of Finances (d. 1683) 1628 – John Granville, 1st Earl of Bath, English soldier and politician, Lord Lieutenant of Ireland (d. 1701) 1632 – John Locke, English physician and philosopher (d. 1704) 1724 – Giovanni Battista Casti, Italian poet and author (d. 1803) 1725 – Charles Townshend, English politician, Chancellor of the Exchequer (d. 1767) 1728 – Maria Anna Sophia of Saxony, electress of Bavaria (d. 1797) 1756 – Jan Śniadecki, Polish mathematician and astronomer (d. 1830) 1756 – Count Heinrich von Bellegarde, Austrian general and politician (d. 1845) 1772 – James Finlayson, Scottish Quaker (d. 1852) 1773 – Aimé Bonpland, French botanist and explorer (d. 1858) 1777 – Hyacinth, Russian religious leader, founded Sinology (d. 1853) 1780 – Jean-Auguste-Dominique Ingres, French painter and illustrator (d. 1867) 1792 – Charles Grandison Finney, American minister and author (d. 1875) 1805 – Frederick Denison Maurice, English priest, theologian, and author (d. 1872) 1809 – Oliver Wendell Holmes Sr., American physician and author (d. 1894) 1810 – Juan Bautista Alberdi, Argentinian theorist and diplomat (d. 1884) 1813 – Henry Bergh, American activist, founded the ASPCA (d. 1888) 1842 – Alfred Shaw, English cricketer, rugby player, and umpire (d. 1907) 1843 – David B. Hill, American lawyer and politician, 29th Governor of New York (d. 1910) 1844 – Edward Carpenter, English anthologist and poet (d. 1929) 1857 – Sandford Schultz, English cricketer (d. 1937) 1861 – Byron G. Harlan, American singer (d. 1936) 1862 – Andrew Fisher, Scottish-Australian politician and diplomat, 5th Prime Minister of Australia (d. 1928) 1862 – Maurice Maeterlinck, Belgian poet and playwright, Nobel Prize laureate (d. 1949) 1871 – Albert François Lebrun, French engineer and politician, 15th President of France (d. 1950) 1875 – Leonardo De Lorenzo, Italian flute player and educator (d. 1962) 1876 – Charles F. Kettering, American engineer and businessman, founded Delco Electronics (d. 1958) 1876 – Kim Koo, South Korean politician, 6th President of The Provisional Government of the Republic of Korea (d. 1949) 1879 – Han Yong-un, Korean independence activist, reformer, and poet (d. 1944) 1887 – Jivraj Narayan Mehta, Indian physicians and politician, 1st Chief Minister of Gujarat (d. 1978) 1888 – Salme Dutt, Estonian-English politician (d. 1964) 1890 – Peder Furubotn, Norwegian Communist and anti-Nazi Resistance leader (d. 1975) 1891 – Marquis James, American journalist and author (d. 1955) 1898 – Preston Sturges, American director and producer (d. 1959) 1901–present 1901 – Aurèle Joliat, Canadian ice hockey player and referee (d. 1986) 1904 – Werner Forssmann, German physician and academic, Nobel Prize laureate (d. 1979) 1905 – Dhyan Chand, Indian field hockey player (d. 1979) 1905 – Arndt Pekurinen, Finnish activist (d. 1941) 1910 – Vivien Thomas, American surgeon and academic (d. 1985) 1911 – John Charnley, British orthopedic surgeon (d. 1982) 1912 – Sohn Kee-chung, South Korean runner (d. 2002) 1912 – Barry Sullivan, American actor (d. 1994) 1912 – Wolfgang Suschitzky, Austrian-English cinematographer and photographer (d. 2016) 1913 – Len Butterfield, New Zealand cricketer (d. 1999) 1913 – Jackie Mitchell, American baseball pitcher (d. 1987) 1915 – Ingrid Bergman, Swedish actress (d. 1982) 1915 – Nathan Pritikin, American nutritionist and author (d. 1985) 1916 – Luther Davis, American playwright and screenwriter (d. 2008) 1917 – Isabel Sanford, American actress (d. 2004) 1920 – Otis Boykin, American inventor and engineer (d. 1982) 1920 – Charlie Parker, American saxophonist and composer (d. 1955) 1920 – Herb Simpson, American baseball player (d. 2015) 1922 – Arthur Anderson, American actor (d. 2016) 1922 – Richard Blackwell, American actor, fashion designer, and critic (d. 2008) 1922 – John Edward Williams, American author and educator (d. 1994) 1923 – Richard Attenborough, English actor, director, and producer (d. 2014) 1924 – Dinah Washington, American singer and pianist (d. 1963) 1926 – Helene Ahrweiler, Greek historian and academic 1926 – Donn Fendler, American author and speaker (d. 2016) 1926 – Betty Lynn, American actress (d. 2021) 1927 – Jimmy C. Newman, American singer-songwriter and guitarist (d. 2014) 1928 – Herbert Meier, Swiss author and translator (d. 2018) 1929 – Thom Gunn, English-American poet and academic (d. 2004) 1930 – Jacques Bouchard, Canadian businessman (d. 2006) 1930 – Carlos Loyzaga, Filipino basketball player and coach (d. 2016) 1931 – Stelios Kazantzidis, Greek singer and guitarist (d. 2001) 1931 – Lise Payette, Canadian journalist and politician (d. 2018) 1933 – Sorel Etrog, Romanian-Canadian sculptor, painter, and illustrator (d. 2014) 1933 – Arnold Koller, Swiss politician 1934 – Dimitris Papamichael, Greek actor and director (d. 2004) 1935 – Hugo Brandt Corstius, Dutch linguist and author (d. 2014) 1935 – William Friedkin, American director, producer, and screenwriter (d. 2023) 1935 – László Garai, Hungarian psychologist and scholar (d. 2019) 1936 – John McCain, American captain and politician (d. 2018) 1937 – James Florio, American commander, lawyer, and politician, 49th Governor of New Jersey (d. 2022) 1938 – Elliott Gould, American actor and producer 1938 – Angela Huth, English journalist and author 1938 – Christian Müller, German footballer and manager 1938 – Robert Rubin, American lawyer and politician, 70th United States Secretary of the Treasury 1939 – Jolán Kleiber-Kontsek, Hungarian discus thrower and shot putter 1939 – Joel Schumacher, American director, producer, and screenwriter (d. 2020) 1940 – James Brady, American politician and activist, 15th White House Press Secretary (d. 2014) 1940 – Gary Gabelich, American race car driver (d. 1984) 1941 – Robin Leach, English journalist and television host (d. 2018) 1942 – James Glennon, American cinematographer (d. 2006) 1942 – Gottfried John, German actor (d. 2014) 1942 – Sterling Morrison, American singer and guitarist (d. 1995) 1943 – Mohamed Amin, Kenyan photographer and journalist (d. 1996) 1943 – Dick Halligan, American pianist and composer 1943 – Arthur B. McDonald, Canadian astrophysicist and academic, Nobel Prize laureate 1945 – Chris Copping, English singer-songwriter and guitarist 1945 – Wyomia Tyus, American sprinter 1946 – Bob Beamon, American long jumper 1946 – Francine D. Blau, American economist and academic 1946 – Demetris Christofias, Cypriot businessman and politician, 6th President of Cyprus (d. 2019) 1946 – Warren Jabali, American basketball player (d. 2012) 1946 – Giorgio Orsoni, Italian lawyer and politician, 17th Mayor of Venice 1947 – Temple Grandin, American ethologist, academic, and author 1947 – James Hunt, English race car driver and sportscaster (d. 1993) 1948 – Robert S. Langer, American chemical engineer, entrepreneur, and academic 1949 – Stan Hansen, American wrestler and actor 1949 – Darnell Hillman, American basketball player 1950 – Doug DeCinces, American baseball player 1950 – Frank Henenlotter, American director and screenwriter 1950 – Dave Reichert, American soldier and politician 1951 – Geoff Whitehorn, English singer-songwriter and guitarist 1952 – Karen Hesse, American author and poet 1952 – Dave Malone, American singer-songwriter and guitarist 1952 – Don Schlitz, American Hall of Fame country music songwriter 1952 – Deborah Van Valkenburgh, American actress 1953 – David Boaz, American businessman and author 1953 – Richard Harding, English rugby player 1953 – James Quesada, Nicaraguan-American anthropologist and academic 1954 – Michael P. Kube-McDowell, American journalist, author, and academic 1955 – Diamanda Galás, American singer-songwriter and pianist 1955 – Jack Lew, American lawyer and politician, 25th White House Chief of Staff 1956 – Mark Morris, American dancer and choreographer 1956 – Eddie Murray, American football player 1956 – Charalambos Xanthopoulos, Greek footballer 1956 – Steve Yarbrough, American novelist and short story writer 1957 – Jerry D. Bailey, American jockey and sportscaster 1957 – Grzegorz Ciechowski, Polish singer-songwriter, film music composer (d. 2001) 1958 – Lenny Henry, English comedian, actor, and screenwriter 1958 – Michael Jackson, American singer-songwriter, producer, dancer, and actor (d. 2009) 1959 – Rebecca De Mornay, American actress 1959 – Ramón Díaz, Argentinian footballer and manager 1959 – Ray Elgaard, Canadian football player 1959 – Chris Hadfield, Canadian colonel, pilot, and astronaut 1959 – Eddi Reader, Scottish singer-songwriter, guitarist, and producer 1959 – Timothy Shriver, American businessman and activist 1959 – Stephen Wolfram, English-American physicist and mathematician 1959 – Nagarjuna, Indian film actor, Producer and Businessman 1960 – Todd English, American chef and author 1960 – Tony MacAlpine, American guitarist, songwriter, and producer 1961 – Carsten Fischer, German field hockey player 1961 – Rodney McCray, American basketball player 1962 – Carl Banks, American football player and sportscaster 1962 – Hiroki Kikuta, Japanese game designer and composer 1962 – Ian James Corlett, Canadian voice actor, writer, producer and author 1962 – Simon Thurley, English historian and academic 1963 – Elizabeth Fraser, Scottish singer-songwriter 1964 – Perri "Pebbles" Reid, American dance-pop and urban contemporary singer-songwriter 1964 – Zisis Tsekos, Greek footballer 1965 – Will Perdue, American basketball player and sportscaster 1965 – Geir-Inge Sivertsen, Norwegian politician and engineer, Norwegian Minister of Fisheries and Seafood 1966 – Jörn Großkopf, German footballer and manager 1967 – Neil Gorsuch, American lawyer and jurist, Associate Justice of the Supreme Court of the United States 1967 – Anton Newcombe, American singer-songwriter and guitarist 1968 – Meshell Ndegeocello, German-American singer-songwriter 1969 – Joe Swail, Northern Irish snooker player 1969 – Jennifer Crittenden, American screenwriter and producer 1969 – Lucero, Mexican singer, songwriter, actress, and television host 1971 – Henry Blanco, Venezuelan baseball player and coach 1971 – Alex Griffin, English bass player 1971 – Carla Gugino, American actress 1972 – Amanda Marshall, Canadian singer-songwriter 1972 – Bae Yong-joon, South Korean actor 1973 – Vincent Cavanagh, English singer and guitarist 1973 – Olivier Jacque, French motorcycle racer 1974 – Kumi Tanioka, Japanese keyboard player and composer 1975 – Dante Basco, American actor 1975 – Kyle Cook, American singer-songwriter and guitarist 1976 – Stephen Carr, Irish footballer 1976 – Phil Harvey, English manager 1976 – Kevin Kaesviharn, American football player 1976 – Georgios Kalaitzis, Greek basketball player 1976 – Pablo Mastroeni, Argentine-American soccer player and manager 1976 – Jon Dahl Tomasson, Danish footballer and manager 1977 – Cayetano, Greek DJ and producer 1977 – Devean George, American basketball player 1977 – John Hensley, American actor 1977 – John Patrick O'Brien, American soccer player 1977 – Roy Oswalt, American baseball player 1977 – Charlie Pickering, Australian comedian and radio host 1977 – Aaron Rowand, American baseball player and sportscaster 1978 – Volkan Arslan, German-Turkish footballer 1978 – Celestine Babayaro, Nigerian footballer 1979 – Stijn Devolder, Belgian cyclist 1979 – Kristjan Rahnu, Estonian decathlete 1979 – Ryan Shealy, American baseball player 1980 – Chris Simms, American football player 1980 – David West, American basketball player 1981 – Martin Erat, Czech ice hockey player 1981 – Geneviève Jeanson, Canadian cyclist 1981 – Jay Ryan, New Zealand-Australian actor and producer 1982 – Ruhila Adatia-Sood, Kenyan journalist and radio host (d. 2013) 1982 – Carlos Delfino, Argentinian-Italian basketball player 1982 – Yakhouba Diawara, French basketball player 1982 – Vincent Enyeama, Nigerian footballer 1983 – Jennifer Landon, American actress 1983 – Antti Niemi, Finnish ice hockey player 1983 – Anthony Recker, American baseball player 1986 – Hajime Isayama, Japanese illustrator 1986 – Lea Michele, American actress and singer 1987 – Tony Kane, Irish footballer 1989 – Charlotte Ritchie, English actress 1990 – Jakub Kosecki, Polish footballer 1990 – Chris Taylor, American baseball player 1990 – Patrick van Aanholt, Dutch footballer 1991 – Néstor Araujo, Mexican footballer 1991 – Deshaun Thomas, American basketball player 1992 – Mallu Magalhães, Brazilian singer-songwriter 1992 – Noah Syndergaard, American baseball player 1993 – Liam Payne, English singer-songwriter 1994 – Ysaline Bonaventure, Belgian tennis player Deaths Pre-1600 886 – Basil I, Byzantine emperor (b. 811) 939 – Wang Jipeng, Chinese emperor of Min 939 – Li Chunyan, Chinese empress 956 – Fu the Elder, Chinese empress 979 – Abu Taghlib, Hamdanid emir 1021 – Minamoto no Yorimitsu, Japanese nobleman (b. 948) 1046 – Gerard of Csanád Venetian monk and Hungarian bishop (b.980) 1093 – Hugh I, duke of Burgundy (b. 1057) 1123 – Eystein I, king of Norway (b. 1088) 1135 – Al-Mustarshid, Abbasid caliph (b. 1092) 1159 – Bertha of Sulzbach, Byzantine empress 1298 – Eleanor of England, Countess of Bar, English princess (b. 1269) 1315 – Peter Tempesta, Italian nobleman (b. 1291) 1315 – Charles of Taranto, Italian nobleman (b. 1296) 1395 – Albert III, duke of Austria (b. 1349) 1442 – John V, duke of Brittany (b. 1389) 1499 – Alesso Baldovinetti, Florentine painter (b. 1427) 1523 – Ulrich von Hutten, Lutheran reformer (b. 1488) 1526 – Louis II, king of Hungary and Croatia (b. 1506) 1526 – Pál Tomori Hungarian archbishop and soldier (b. 1475) 1533 – Atahualpa, Inca emperor (b. 1497) 1542 – Cristóvão da Gama, Portuguese commander (b. 1516) 1601–1900 1604 – Hamida Banu Begum, Mughal empress (b. 1527) 1657 – John Lilburne, English activist (b. 1614) 1712 – Gregory King, English genealogist, engraver, and statistician (b. 1648) 1749 – Matthias Bel, Hungarian pastor and polymath (b. 1684) 1769 – Edmond Hoyle, English author and educator (b. 1672) 1780 – Jacques-Germain Soufflot, French architect, co-designed The Panthéon (b. 1713) 1799 – Pius VI, pope of the Catholic Church (b. 1717) 1844 – Edmund Ignatius Rice, Irish missionary and educator, founded the Christian Brothers and Presentation Brothers (b. 1762) 1856 – Mary Anne Schimmelpenninck, English author and activist (b. 1778) 1866 – Tokugawa Iemochi, Japanese shōgun (b. 1846) 1877 – Brigham Young, American religious leader, 2nd President of The Church of Jesus Christ of Latter-day Saints (b. 1801) 1889 – Stefan Dunjov, Bulgarian colonel (b. 1815) 1891 – Pierre Lallement, French businessman, invented the bicycle (b. 1843) 1892 – William Forbes Skene, Scottish historian and author (b. 1809) 1901–present 1904 – Murad V, Ottoman sultan (b. 1840) 1911 – Mir Mahboob Ali Khan, 6th Nizam of Hyderabad (b. 1866) 1917 – George Huntington Hartford, American businessman (b. 1833) 1930 – William Archibald Spooner, English priest and author (b. 1844) 1931 – David T. Abercrombie, American businessman, co-founded Abercrombie & Fitch (b. 1867) 1932 – Raymond Knister, Canadian poet and author (b. 1899) 1944 – Attik, Greek pianist and composer (b. 1885) 1946 – Adolphus Busch III, American businessman (b. 1891) 1946 – John Steuart Curry, American painter and academic (b. 1897) 1951 – Sydney Chapman, English economist and civil servant (b. 1871) 1952 – Anton Piëch, Austrian lawyer (b. 1894) 1958 – Marjorie Flack, American author and illustrator (b. 1897) 1966 – Sayyid Qutb, Egyptian theorist, author, and poet (b. 1906) 1968 – Ulysses S. Grant III, American general (b. 1881) 1971 – Nathan Freudenthal Leopold Jr., American murderer (b. 1904) 1972 – Lale Andersen, German singer-songwriter (b. 1905) 1975 – Éamon de Valera, Irish soldier and politician, 3rd President of Ireland (b. 1882) 1977 – Jean Hagen, American actress (b. 1923) 1977 – Brian McGuire, Australian race car driver (b. 1945) 1979 – Gertrude Chandler Warner, American author and educator (b. 1890) 1981 – Lowell Thomas, American journalist and author (b. 1892) 1982 – Ingrid Bergman, Swedish actress (b. 1915) 1982 – Lehman Engel, American composer and conductor (b. 1910) 1985 – Evelyn Ankers, British-American actress (b. 1918) 1987 – Archie Campbell, American actor and screenwriter (b. 1914) 1987 – Lee Marvin, American actor (b. 1924) 1989 – Peter Scott, English explorer and painter (b. 1909) 1990 – Manly Palmer Hall, Canadian-American mystic and author (b. 1901) 1991 – Libero Grassi, Italian businessman (b. 1924) 1992 – Félix Guattari, French philosopher and theorist (b. 1930) 1995 – Frank Perry, American director, producer, and screenwriter (b. 1930) 2000 – Shelagh Fraser, English actress (b. 1922) 2000 – Willie Maddren, English footballer and manager (b. 1951) 2000 – Conrad Marca-Relli, American-Italian painter and academic (b. 1913) 2001 – Graeme Strachan, Australian singer-songwriter & television personality (b. 1952) 2001 – Francisco Rabal, Spanish actor, director, and screenwriter (b. 1926) 2002 – Lance Macklin, English race car driver (b. 1919) 2003 – Mohammad Baqir al-Hakim, Iraqi politician (b. 1939) 2003 – Patrick Procktor, English painter and academic (b. 1936) 2004 – Hans Vonk, Dutch conductor (b. 1942) 2007 – James Muir Cameron Fletcher, New Zealand businessman (b. 1914) 2007 – Richard Jewell, American police officer (b. 1962) 2007 – Pierre Messmer, French civil servant and politician, 154th Prime Minister of France (b. 1916) 2007 – Alfred Peet, Dutch-American businessman, founded Peet's Coffee & Tea (b. 1920) 2008 – Geoffrey Perkins, English actor, producer, and screenwriter (b. 1953) 2008 – Michael Schoenberg, American geophysicist and theorist (b. 1939) 2011 – Honeyboy Edwards, American singer-songwriter and guitarist (b. 1915) 2011 – Junpei Takiguchi, Japanese voice actor (b. 1931) 2012 – Ruth Goldbloom, Canadian academic and philanthropist, co-founded Pier 21 (b. 1923) 2012 – Nicholas Goodrick-Clarke, English historian and author (b. 1953) 2012 – Shoshichi Kobayashi, Japanese-American mathematician and academic (b. 1932) 2012 – Anne McKnight, American soprano (b. 1924) 2012 – Les Moss, American baseball player, coach, and manager (b. 1925) 2012 – Sergei Ovchinnikov, Russian volleyball player and coach (b. 1969) 2013 – Joan L. Krajewski, American lawyer and politician (b. 1934) 2013 – Medardo Joseph Mazombwe, Zambian cardinal (b. 1931) 2013 – Bruce C. Murray, American geologist and academic, co-founded The Planetary Society (b. 1931) 2014 – Octavio Brunetti, Argentinian pianist and composer (b. 1975) 2014 – Björn Waldegård, Swedish race car driver (b. 1943) 2016 – Gene Wilder, American stage and screen comic actor, screenwriter, film director, and author (b. 1933) 2018 – James Mirrlees, Scottish economist, Nobel Prize laureate (b. 1936) 2018 – Paul Taylor, American choreographer (b. 1930) 2021 – Ed Asner, American actor (b. 1929) 2021 – Lee "Scratch" Perry, Jamaican reggae producer (b. 1936) 2021 – Jacques Rogge, Olympic sailor and Orthopedic Surgeon who served as the 8th President of the International Olympic Committee (b. 1942) 2023 – Mike Enriquez (b. 1951), Filipino broadcaster Holidays and observances Christian feast day: Adelphus of Metz Beheading of St. John the Baptist Eadwold of Cerne Euphrasia Eluvathingal (Syro-Malabar Catholic Church) John Bunyan (Episcopal Church) Sabina Vitalis, Sator and Repositus August 29 (Eastern Orthodox liturgics) International Day against Nuclear Tests Miners' Day (Ukraine) Day of Remembrance of the Defenders of Ukraine (Ukraine) Municipal Police Day (Poland) National Sports Day (India) Slovak National Uprising Anniversary (Slovakia) Telugu Language Day (India) References External links Days of the year August

1806

https://en.wikipedia.org/wiki/Arnold%20Schwarzenegger

Arnold Schwarzenegger

Arnold Alois Schwarzenegger (born July 30, 1947) is an Austrian and American actor, businessman, filmmaker, former politician, and former professional bodybuilder best known for his roles in high-profile action movies. He served as the 38th governor of California from 2003 to 2011 and was among Time magazine's 100 most influential people in the world in 2004 and 2007. Schwarzenegger began lifting weights at age 15 and won the Mr. Universe title aged 20, and subsequently the Mr. Olympia title seven times. He is widely regarded as one of the greatest bodybuilders of all time, and has written many books and articles about it. The Arnold Sports Festival, considered the second-most important bodybuilding event after Mr. Olympia, is named after him. He appeared in the bodybuilding documentary Pumping Iron (1977). He retired from bodybuilding and gained worldwide fame as a Hollywood action star, with his breakthrough in the sword and sorcery epic Conan the Barbarian (1982), a box-office hit with a sequel in 1984. After playing the title character in the science fiction film The Terminator (1984), he starred in Terminator 2: Judgment Day (1991) and three other sequels. His other successful action films included Commando (1985), The Running Man (1987), Predator (1987), Total Recall (1990), and True Lies (1994), in addition to comedy films such as Twins (1988), Kindergarten Cop (1990) and Jingle All the Way (1996). He is the founder of the film production company Oak Productions. As a registered Republican, Schwarzenegger chaired the President's Council on Physical Fitness and Sports during most of the George H. W. Bush administration. On October 7, 2003, he was elected Governor of California in a special recall election to replace then-Governor Gray Davis. He received 48.6% of the vote, 17 points ahead of Democrat runner-up Cruz Bustamante. He was sworn in on November 17 to serve the remainder of Davis' term, and was reelected in the 2006 California gubernatorial election with an increased vote share of 55.9% to serve a full term. In 2011 he reached his term limit as governor and returned to acting. Schwarzenegger was nicknamed the "Austrian Oak" in his bodybuilding days, "Arnie" or "Schwarzy" during his acting career, and "the Governator" (a portmanteau of "Governor" and "Terminator") during his political career. He married Maria Shriver, a niece of President John F. Kennedy, in 1986. They separated in 2011 after he admitted to having fathered a child with their housemaid in 1997; their divorce was finalized in 2021. Early life and education Arnold Alois Schwarzenegger was born in Thal on July 30, 1947, the second son of Gustav Schwarzenegger and his wife Aurelia (née Jadrny). Gustav was the local chief of police, and after the Anschluss in 1938, joined the Nazi Party and, in 1939 the Sturmabteilung (SA). In World War II, Gustav served as a military policeman in the invasions of Poland, France and the Soviet Union, including the siege of Leningrad, rising to the title of Hauptfeldwebel. He was wounded in the Battle of Stalingrad, and was discharged in 1943 following a bout of malaria. According to Holocaust scholar Michael Berenbaum, Gustav Schwarzenegger served "in theaters of the war where atrocities were committed. But there is no way to know from the documents whether he played a role." Gustav's background received wide press attention during the 2003 California gubernatorial recall election in which Schwarzenegger was elected. Gustav married Aurelia on October 20, 1945; he was 38 and she was 23. According to Schwarzenegger, his parents were very strict: "Back then in Austria it was a very different world [...] if we did something bad or we disobeyed our parents, the rod was not spared." He grew up in a Catholic family. Gustav preferred his elder son, Meinhard, over Arnold. His favoritism was "strong and blatant", which stemmed from unfounded suspicion that Arnold was not his biological child. Schwarzenegger has said that his father had "no patience for listening or understanding your problems". He had a good relationship with his mother, with whom he kept in touch until her death. At school, Schwarzenegger was reportedly academically average but stood out for his "cheerful, good-humored, and exuberant" character. He struggled with reading and was later diagnosed as being dyslexic. Money was a problem in their household; Schwarzenegger recalled that one of the highlights of his youth was when the family bought a refrigerator. His father Gustav was an athlete, and wished for his sons to become champions in Bavarian curling. Influenced by his father, Schwarzenegger played several sports as a boy. Schwarzenegger began weight training in 1960 when his football coach took his team to a local gym. At age 14, he chose bodybuilding over football as a career. He later said, "I actually started weight training when I was 15, but I'd been participating in sports, like soccer, for years, so I felt that although I was slim, I was well-developed, at least enough so that I could start going to the gym and start Olympic lifting." However, his official website biography claims that "at 14, he started an intensive training program with Dan Farmer, studied psychology at 15 (to learn more about the power of mind over body) and at 17, officially started his competitive career." During a speech in 2001, he said, "My own plan formed when I was 14 years old. My father had wanted me to be a police officer like he was. My mother wanted me to go to trade school." Schwarzenegger took to visiting a gym in Graz, where he also frequented the local movie theaters to see films with bodybuilding idols such as Reg Park, Steve Reeves and Johnny Weissmuller. When Reeves died in 2000, Schwarzenegger fondly remembered him: "As a teenager, I grew up with Steve Reeves. His remarkable accomplishments allowed me a sense of what was possible when others around me didn't always understand my dreams. Steve Reeves has been part of everything I've ever been fortunate enough to achieve." In 1961, Schwarzenegger met former Mr. Austria Kurt Marnul, who invited him to train at the gym in Graz. He was so dedicated as a youngster that he broke into the local gym on weekends to train even when it was closed. "It would make me sick to miss a workout... I knew I couldn't look at myself in the mirror the next morning if I didn't do it." When asked about his first cinema experience as a boy, he replied: "I was very young, but I remember my father taking me to the Austrian theaters and seeing some newsreels. The first real movie I saw, that I distinctly remember, was a John Wayne movie." In Graz, he was mentored by Alfred Gerstl, who had Jewish ancestry and later became president of the Federal Council, and befriended his son Karl. Schwarzenegger's brother, Meinhard, died in a car crash on May 20, 1971. He was driving drunk and died instantly. Schwarzenegger did not attend his funeral. Meinhard was engaged to Erika Knapp, and they had a three-year-old son named Patrick. Schwarzenegger paid for Patrick's education and helped him to move to the U.S. Schwarzenegger's father, Gustav, died of a stroke on December 13, 1972. In Pumping Iron, Schwarzenegger claimed that he did not attend his father's funeral because he was training for a bodybuilding contest. Later, he and the film's producer said this story was taken from another bodybuilder to show the extremes some would go to for their sport and to make Schwarzenegger's image colder to create controversy for the film. However, Barbara Baker, his first serious girlfriend, recalled that he informed her of his father's death without emotion and that he never spoke of his brother. Over time, he has given at least three versions of why he was absent from his father's funeral. In an interview with Fortune in 2004, Schwarzenegger told how he suffered what "would now be called child abuse" at the hands of his father: "My hair was pulled. I was hit with belts. So was the kid next door. It was just the way it was. Many of the children I've seen were broken by their parents, which was the German-Austrian mentality. They didn't want to create an individual. It was all about conforming. I was one who did not conform, and whose will could not be broken. Therefore, I became a rebel. Every time I got hit, and every time someone said, 'You can't do this,' I said, 'This is not going to be for much longer because I'm going to move out of here. I want to be rich. I want to be somebody. Schwarzenegger served in the Austrian Army in 1965 to fulfill the one year of service required at the time of all 18-year-old Austrian males. During his army service, he won the Junior Mr. Europe contest. He went AWOL during basic training so he could take part in the competition and then spent a week in military prison: "Participating in the competition meant so much to me that I didn't carefully think through the consequences." He entered another bodybuilding contest in Graz, at Steirerhof Hotel, where he placed second. He was voted "best-built man of Europe", which made him famous in bodybuilding circles. "The Mr. Universe title was my ticket to America—the land of opportunity, where I could become a star and get rich." Schwarzenegger made his first plane trip in 1966, attending the NABBA Mr. Universe competition in London. He placed second in the Mr. Universe competition, not having the muscle definition of American winner Chester Yorton. Charles "Wag" Bennett, one of the judges at the 1966 competition, was impressed with Schwarzenegger and offered to coach him. As Schwarzenegger had little money, Bennett invited him to stay in his crowded family home above one of his two gyms in Forest Gate, London. Yorton's leg definition had been judged superior, and Schwarzenegger, under a training program devised by Bennett, concentrated on improving his. Staying in the East End of London helped Schwarzenegger improve his rudimentary English. Living with the Bennetts also changed him as a person: "Being with them made me so much more sophisticated. When you're the age I was then, you're always looking for approval, for love, for attention and also for guidance. At the time, I wasn't really aware of that. But now, looking back, I see that the Bennett family fulfilled all those needs. Especially my need to be the best in the world. To be recognized and to feel unique and special. They saw that I needed that care and attention and love." Also in 1966, at Bennett's home, Schwarzenegger had the opportunity to meet childhood idol Reg Park, who became his friend and mentor. The training paid off and, in 1967, Schwarzenegger won the title for the first time, becoming the youngest ever Mr. Universe at age 20. He would go on to win the title another three times. He then returned to Munich, where he attended business school and worked at Rolf Putziger's gym, where he worked and trained from 1966 to 1968 before returning to London in 1968 to win his next Mr. Universe title. He frequently told Roger C. Field, his English coach and friend in Munich at the time, "I'm going to become the greatest actor!" Schwarzenegger, who dreamed of moving to the US since age ten, and saw bodybuilding as his avenue of opportunity, realized his dream by moving to the US in October 1968 at age 21, speaking little English. There he trained at Gold's Gym in Venice, Los Angeles, California, under Joe Weider's supervision. From 1970 to 1974, one of Schwarzenegger's weight training partners was Ric Drasin, a professional wrestler who designed the original Gold's Gym logo in 1973. Schwarzenegger also became good friends with professional wrestler Superstar Billy Graham. In 1970, at age 23, Schwarzenegger captured his first Mr. Olympia title in New York, and would go on to win the title seven times. The immigration law firm Siskind & Susser has stated that Schwarzenegger may have been an illegal immigrant at some point in the late 1960s or early 1970s because of violations in the terms of his visa. LA Weekly said in 2002 that Schwarzenegger was "the most famous US immigrant", who "overcame a thick Austrian accent and transcended the unlikely background of bodybuilding to become the biggest movie star in the world in the 1990s". In 1977, Schwarzenegger's autobiography and weight-training guide, Arnold: The Education of a Bodybuilder, was a huge success. In 1977, he posed for the gay magazine After Dark. After taking an assortment of courses at Santa Monica College in California (including English classes), as well as further upper division classes at the University of California, Los Angeles as part of UCLA's extension program, he accumulated enough credits to be "within striking distance" of graduation. In 1979, he enrolled in the University of Wisconsin–Superior as a distance education student, completing most of his coursework by correspondence and flying out to Superior to meet professors and take final exams. In May 1980, he formally graduated and earned his bachelor's degree in business administration and marketing. He received his United States citizenship in 1983. He later received an Honorary Degree from Stockton University in 2023. Bodybuilding career Schwarzenegger is considered among the most important figures in the history of bodybuilding, and his legacy is commemorated in the Arnold Classic annual bodybuilding competition. He has remained a prominent face in bodybuilding long after his retirement, in part because of his ownership of gyms and fitness magazines. He has presided over numerous contests and awards shows. For many years, he wrote a monthly column for the bodybuilding magazines Muscle & Fitness and Flex. Shortly after being elected governor, he was appointed the executive editor of both magazines, in a largely symbolic capacity. The magazines agreed to donate $250,000 a year to the Governor's various physical fitness initiatives. When the deal, including the contract that gave Schwarzenegger at least $1 million a year, was made public in 2005, many criticized it as being a conflict of interest since the governor's office made decisions concerning regulation of dietary supplements in California. Consequently, Schwarzenegger relinquished the executive editor role in 2005. American Media Inc., which owns Muscle & Fitness and Flex, announced in March 2013 that Schwarzenegger had accepted their renewed offer to be executive editor of the magazines. One of the first competitions he won was the Junior Mr. Europe contest in 1965. He won Mr. Europe the following year, at age 19. He would go on to compete in many bodybuilding contests, and win most of them. His bodybuilding victories included five Mr. Universe wins (4 – NABBA [England], 1 – IFBB [USA]), and seven Mr. Olympia wins, a record which would stand until Lee Haney won his eighth consecutive Mr. Olympia title in 1991. Schwarzenegger continues to work out. When asked about his personal training during the 2011 Arnold Classic he said that he was still working out a half an hour with weights every day. Powerlifting/weightlifting During Schwarzenegger's early years in bodybuilding, he also competed in several Olympic weightlifting and powerlifting contests. Schwarzenegger's first professional competition was in 1963 and he won two weightlifting contests in 1964 and 1965, as well as two powerlifting contests in 1966 and 1968. In 1967, Schwarzenegger won the Munich stone-lifting contest, in which a stone weighing 508 German pounds (254 kg / 560 lb) is lifted between the legs while standing on two footrests. Personal records Clean and press – Snatch – Clean and jerk – Squat – Bench press – Deadlift – Mr. Olympia Schwarzenegger's goal was to become the greatest bodybuilder in the world, which meant becoming Mr. Olympia. His first attempt was in 1969, when he lost to three-time champion Sergio Oliva. However, Schwarzenegger came back in 1970 and won the competition, making him the youngest ever Mr. Olympia at the age of 23, a record he still holds to this day. He continued his winning streak in the 1971–1974 competitions. He also toured different countries selling vitamins, as in Helsinki, Finland in 1972, when he lived at the YMCA Hotel Hospiz (nowadays Hotel Arthur) on Vuorikatu and presented vitamin pills at the Stockmann shopping center. In 1975, Schwarzenegger was once again in top form, and won the title for the sixth consecutive time, beating Franco Columbu. After the 1975 Mr. Olympia contest, Schwarzenegger announced his retirement from professional bodybuilding. Months before the 1975 Mr. Olympia contest, filmmakers George Butler and Robert Fiore persuaded Schwarzenegger to compete and film his training in the bodybuilding documentary called Pumping Iron. Schwarzenegger had only three months to prepare for the competition, after losing significant weight to appear in the film Stay Hungry with Jeff Bridges. Although significantly taller and heavier, Lou Ferrigno proved not to be a threat, and a lighter-than-usual Schwarzenegger convincingly won the 1975 Mr. Olympia. Schwarzenegger came out of retirement, however, to compete in the 1980 Mr. Olympia. Schwarzenegger was training for his role in Conan, and he got into such good shape because of the running, horseback riding and sword training, that he decided he wanted to win the Mr. Olympia contest one last time. He kept this plan a secret in the event that a training accident would prevent his entry and cause him to lose face. Schwarzenegger had been hired to provide color commentary for network television when he announced at the eleventh hour that, while he was there, "Why not compete?" Schwarzenegger ended up winning the event with only seven weeks of preparation. Having been declared Mr. Olympia for a seventh time, Schwarzenegger then officially retired from competition. This victory (subject of the documentary The Comeback) was highly controversial, though, as fellow competitors and many observers felt that his lack of muscle mass (especially in his thighs) and subpar conditioning should have precluded him from winning against a very competitive lineup that year. Mike Mentzer, in particular, felt cheated and withdrew from competitive bodybuilding after that contest. Steroid use Schwarzenegger has acknowledged using performance-enhancing anabolic steroids while they were legal, writing in 1977 that "steroids were helpful to me in maintaining muscle size while on a strict diet in preparation for a contest. I did not use them for muscle growth, but rather for muscle maintenance when cutting up." He has called the drugs "tissue building". In 1999, Schwarzenegger sued Willi Heepe, a German doctor who publicly predicted his early death on the basis of a link between his steroid use and later heart problems. Since the doctor never examined him personally, Schwarzenegger collected a US$10,000 libel judgment against him in a German court. In 1999, Schwarzenegger also sued and settled with Globe, a U.S. tabloid which had made similar predictions about the bodybuilder's future health. List of competitions Statistics Height: Contest weight: —the lightest in 1980 Mr. Olympia: around , the heaviest in 1974 Mr. Olympia: around Off-season weight: Chest: Waist: Arms: Thighs: Calves: Acting career Early roles Schwarzenegger wanted to move from bodybuilding into acting, finally achieving it when he was chosen to play the title role in Hercules in New York (1970). Credited under the stage name "Arnold Strong", his accent in the film was so thick that his lines were dubbed after production. His second film appearance was as a mob hitman in The Long Goodbye (1973), which was followed by a much more significant part in the film Stay Hungry (1976), for which he won the Golden Globe Award for New Star of the Year – Actor. Schwarzenegger has discussed his early struggles in developing his acting career: "It was very difficult for me in the beginning – I was told by agents and casting people that my body was 'too weird', that I had a funny accent, and that my name was too long. You name it, and they told me I had to change it. Basically, everywhere I turned, I was told that I had no chance." Schwarzenegger drew attention and boosted his profile in the bodybuilding film Pumping Iron (1977), elements of which were dramatized. In 1991, he purchased the rights to the film, its outtakes, and associated still photography. In 1977, he made guest appearances in single episodes of the ABC sitcom The San Pedro Beach Bums and the ABC police procedural The Streets of San Francisco. Schwarzenegger auditioned for the title role of The Incredible Hulk, but did not win the role because of his height. Later, Lou Ferrigno got the part of Dr. David Banner's alter ego. Schwarzenegger appeared with Kirk Douglas and Ann-Margret in the 1979 comedy The Villain. In 1980, he starred in a biographical film of the 1950s actress Jayne Mansfield as Mansfield's husband, Mickey Hargitay. Action superstar Schwarzenegger's breakthrough film was the sword and sorcery epic Conan the Barbarian in 1982, which was a box-office hit. This was followed by a sequel, Conan the Destroyer, in 1984, although it was not as successful as its predecessor. In 1983, Schwarzenegger starred in the promotional video Carnival in Rio. In 1984, he made his first appearance as the eponymous character in James Cameron's science fiction action film The Terminator. It has been called his acting career's signature role. Following this, Schwarzenegger made another sword and sorcery film, Red Sonja, in 1985. During the 1980s, audiences had an appetite for action films, with both Schwarzenegger and Sylvester Stallone becoming international stars. During the Schwarzenegger-Stallone rivalry they attacked each other in the press, and tried to surpass the other with more on-screen killings and larger weapons. Schwarzenegger's roles reflected his sense of humor, separating him from more serious action hero films. He made a number of successful action films in the 1980s, such as Commando (1985), Raw Deal (1986), The Running Man (1987), Predator (1987), and Red Heat (1988). Twins (1988), a comedy with Danny DeVito, also proved successful. Total Recall (1990) netted Schwarzenegger $10 million (equivalent to $ million today) and 15% of the film's gross. A science fiction script, the film was based on the Philip K. Dick short story "We Can Remember It for You Wholesale". Kindergarten Cop (1990) reunited him with director Ivan Reitman, who directed him in Twins. Schwarzenegger had a brief foray into directing, first with a 1990 episode of the TV series Tales from the Crypt, entitled "The Switch", and then with the 1992 telemovie Christmas in Connecticut. He has not directed since. Schwarzenegger's commercial peak was his return as the title character in Terminator 2: Judgment Day (1991), which was the highest-grossing film of the year. Film critic Roger Ebert commented that "Schwarzenegger's genius as a movie star is to find roles that build on, rather than undermine, his physical and vocal characteristics." In 1993, the National Association of Theatre Owners named him the "International Star of the Decade". His next film project, the 1993 self-aware action comedy spoof Last Action Hero, was released opposite Jurassic Park, and did not do well at the box office. His next film, the comedy drama True Lies (1994), was a popular spy film and saw Schwarzenegger reunited with James Cameron. That same year, the comedy Junior was released, the last of Schwarzenegger's three collaborations with Ivan Reitman and again co-starring Danny DeVito. This film brought him his second Golden Globe nomination, this time for Best Actor – Motion Picture Musical or Comedy. It was followed by the action thriller Eraser (1996), the Christmas comedy Jingle All The Way (1996), and the comic book-based Batman & Robin (1997), in which he played the villain Mr. Freeze. This was his final film before taking time to recuperate from a back injury. Following the critical failure of Batman & Robin, his film career and box office prominence went into decline. He returned with the supernatural thriller End of Days (1999), later followed by the action films The 6th Day (2000) and Collateral Damage (2002), both of which failed to do well at the box office. In 2003, he made his third appearance as the title character in Terminator 3: Rise of the Machines, which went on to earn over $150 million domestically (equivalent to $ million today). In tribute to Schwarzenegger in 2002, Forum Stadtpark, a local cultural association, proposed plans to build a Terminator statue in a park in central Graz. Schwarzenegger reportedly said he was flattered, but thought the money would be better spent on social projects and the Special Olympics. Retirement His film appearances after becoming Governor of California included a three-second cameo appearance in The Rundown and the 2004 remake of Around the World in 80 Days. In 2005, he appeared as himself in the film The Kid & I. He voiced Baron von Steuben in the Liberty's Kids episode "Valley Forge". He had been rumored to be appearing in Terminator Salvation as the original T-800; he denied his involvement, but he ultimately did appear briefly via his image being inserted into the movie from stock footage of the first Terminator movie. Schwarzenegger appeared in Sylvester Stallone's The Expendables, where he made a cameo appearance. Return to acting In January 2011, just weeks after leaving office in California, Schwarzenegger announced that he was reading several new scripts for future films, one of them being the World War II action drama With Wings as Eagles, written by Randall Wallace, based on a true story. On March 6, 2011, at the Arnold Seminar of the Arnold Classic, Schwarzenegger revealed that he was being considered for several films, including sequels to The Terminator and remakes of Predator and The Running Man, and that he was "packaging" a comic book character. The character was later revealed to be the Governator, star of the comic book and animated series of the same name. Schwarzenegger inspired the character and co-developed it with Stan Lee, who would have produced the series. Schwarzenegger would have voiced the Governator. On May 20, 2011, Schwarzenegger's entertainment counsel announced that all film projects currently in development were being halted: "Schwarzenegger is focusing on personal matters and is not willing to commit to any production schedules or timelines." On July 11, 2011, it was announced that Schwarzenegger was considering a comeback film, despite legal problems related to his divorce. He starred in The Expendables 2 (2012) as Trench Mauser, and starred in The Last Stand (2013), his first leading role in 10 years, and Escape Plan (2013), his first co-starring role alongside Sylvester Stallone. He starred in Sabotage, released in March 2014, and returned as Trench Mauser in The Expendables 3, released in August 2014. He starred in the fifth Terminator film Terminator Genisys in 2015, and would reprise his role as Conan the Barbarian in The Legend of Conan, later renamed Conan the Conqueror. However, in April 2017, producer Chris Morgan stated that Universal had dropped the project, although there was a possibility of a TV show. The story of the film was supposed to be set 30 years after the first, with some inspiration from Clint Eastwood's Unforgiven. In August 2016, his filming of action-comedy Killing Gunther was temporarily interrupted by bank robbers near the filming location in Surrey, British Columbia. The film was released in September 2017. He was announced to star and produce in a film about the ruins of Sanxingdui called The Guest of Sanxingdui as an ambassador. On February 6, 2018, Amazon Studios announced they were working with Schwarzenegger to develop a new series entitled Outrider in which he will star and executive produce. The western-drama set in the Oklahoma Indian Territory in the late 19th century will follow a deputy (portrayed by Schwarzenegger) who is tasked with apprehending a legendary outlaw in the wilderness, but is forced to partner with a ruthless Federal Marshal to make sure justice is properly served. The series will also mark as Schwarzenegger's first major scripted TV role. Schwarzenegger returned to the Terminator franchise with Terminator: Dark Fate, which was released on November 1, 2019. It was produced by the series' co-creator James Cameron, who directed him previously in the first two films in the series and in True Lies. It was shot in Almería, Hungary and the US. The Celebrity Apprentice In September 2015, the media announced that Schwarzenegger was to replace Donald Trump as host of The New Celebrity Apprentice. This show, the 15th season of The Apprentice, aired during the 2016–2017 TV season. In the show, he used the phrases "you're terminated" and "get to the choppa", which are quotes from some of his famous roles (The Terminator and Predator, respectively), when firing the contestants. In March 2017, following repeated criticisms from Trump, Schwarzenegger announced that he would not return for another season on the show. He also reacted to Trump's remarks in January 2017 via Instagram: "Hey, Donald, I have a great idea. Why don't we switch jobs? You take over TV because you're such an expert in ratings, and I take over your job, and then people can finally sleep comfortably again." Political career Early politics Schwarzenegger has been a registered Republican for many years. When he was an actor, his political views were always well known as they contrasted with those of many other prominent Hollywood stars, who are generally considered to be a left-wing and Democratic-leaning community. At the 2004 Republican National Convention, Schwarzenegger gave a speech and explained that he was a Republican because he believed the Democrats of the 1960s sounded too much like Austrian socialists. In 1985, Schwarzenegger appeared in "Stop the Madness", an anti-drug music video sponsored by the Reagan administration. He first came to wide public notice as a Republican during the 1988 presidential election, accompanying then–Vice President George H. W. Bush at a campaign rally. Schwarzenegger famously introduced the first episode of the 1990 Milton Friedman hosted PBS series Free to Choose stating: Schwarzenegger goes on to tell of how he and his then wife Maria Shriver were in Palm Springs preparing to play a game of mixed doubles when Milton Friedman's famous show came on the television. Schwarzenegger recalls that while watching Friedman's Free to Choose, Schwarzenegger, "...recognized Friedman from the study of my own degree in economics, but I didn't know I was watching Free to Choose... it knocked me out. Dr. Friedman expressed, validated and explained everything I ever thought or experienced or observed about the way the economy works, and I guess I was really ready to hear it." Numerous critics state that Schwarzenegger strayed from much of Friedman's economic ways of thinking in later years, especially upon being elected Governor of California from 2003 through 2011. Schwarzenegger's first political appointment was as chairman of the President's Council on Physical Fitness and Sports, on which he served from 1990 to 1993. He was nominated by the then-President Bush, who dubbed him "Conan the Republican". He later served as chairman for the California Governor's Council on Physical Fitness and Sports under Governor Pete Wilson. Between 1993 and 1994, Schwarzenegger was a Red Cross ambassador (a ceremonial role fulfilled by celebrities), recording several television and radio public service announcements to donate blood. In an interview with Talk magazine in late 1999, Schwarzenegger was asked if he thought of running for office. He replied, "I think about it many times. The possibility is there because I feel it inside." The Hollywood Reporter claimed shortly after that Schwarzenegger sought to end speculation that he might run for governor of California. Following his initial comments, Schwarzenegger said, "I'm in show business – I am in the middle of my career. Why would I go away from that and jump into something else?" Governor of California Schwarzenegger announced his candidacy in the 2003 California recall election for Governor of California on the August 6, 2003, episode of The Tonight Show with Jay Leno. Schwarzenegger had the most name recognition in a crowded field of candidates, but he had never held public office and his political views were unknown to most Californians. His candidacy immediately became national and international news, with media outlets dubbing him the "Governator" (referring to The Terminator movies, see above) and "The Running Man" (the name of another one of his films), and calling the recall election "Total Recall" (yet another movie starring Schwarzenegger). Schwarzenegger declined to participate in several debates with other recall replacement candidates, and appeared in only one debate on September 24, 2003. On October 7, 2003, the recall election resulted in Governor Gray Davis being removed from office with 55.4% of the Yes vote in favor of a recall. Schwarzenegger was elected Governor of California under the second question on the ballot with 48.6% of the vote to choose a successor to Davis. Schwarzenegger defeated Democrat Cruz Bustamante, fellow Republican Tom McClintock, and others. His nearest rival, Bustamante, received 31% of the vote. In total, Schwarzenegger won the election by about 1.3 million votes. Under the regulations of the California Constitution, no runoff election was required. Schwarzenegger was the second foreign-born governor of California after Irish-born Governor John G. Downey in 1862. Schwarzenegger is a moderate Republican. He says he is fiscally conservative and socially liberal. On the issue of abortion, he describes himself as pro-choice, but supports parental notification for minors and a ban on partial-birth abortion. He has supported gay rights, such as domestic partnerships, and he performed a same-sex marriage as governor. However, Schwarzenegger vetoed bills that would have legalized same-sex marriage in California in 2005 and 2007. He additionally vetoed two bills that would have implemented a single-payer health care system in California in 2006 and 2008, respectively. Schwarzenegger was entrenched in what he considered to be his mandate in cleaning up political gridlock. Building on a catchphrase from the sketch "Hans and Franz" from Saturday Night Live (which partly parodied his bodybuilding career), Schwarzenegger called the Democratic State politicians "girlie men". Schwarzenegger's early victories included repealing an unpopular increase in the vehicle registration fee as well as preventing driver's licenses from being given out to illegal immigrants, but later he began to feel the backlash when powerful state unions began to oppose his various initiatives. Key among his reckoning with political realities was a special election he called in November 2005, in which four ballot measures he sponsored were defeated. Schwarzenegger accepted personal responsibility for the defeats and vowed to continue to seek consensus for the people of California. He would later comment that "no one could win if the opposition raised 160 million dollars to defeat you". The U.S. Supreme Court later found the public employee unions' use of compulsory fundraising during the campaign had been illegal in Knox v. Service Employees International Union, Local 1000. Schwarzenegger, against the advice of fellow Republican strategists, appointed a Democrat, Susan Kennedy, as his Chief of Staff. He gradually moved towards a more politically moderate position, determined to build a winning legacy with only a short time to go until the next gubernatorial election. Schwarzenegger ran for re-election against Democrat Phil Angelides, the California State Treasurer, in the 2006 elections, held on November 7, 2006. Despite a poor year nationally for the Republican party, Schwarzenegger won re-election with 56.0% of the vote compared with 38.9% for Angelides, a margin of well over 1 million votes. Around this time, many commentators saw Schwarzenegger as moving away from the right and towards the center of the political spectrum. After hearing a speech by Schwarzenegger at the 2006 Martin Luther King Jr. Day breakfast, in which Schwarzenegger said, in part "How wrong I was when I said everyone has an equal opportunity to make it in America [...] the state of California does not provide (equal) education for all of our children", San Francisco mayor & future governor of California Gavin Newsom said that "[H]e's becoming a Democrat [... H]e's running back, not even to the center. I would say center-left". Some speculated that Schwarzenegger might run for the United States Senate in 2010, as his governorship would be term-limited by that time. Such rumors turned out to be false. Wendy Leigh, who wrote an unofficial biography on Schwarzenegger, claims he plotted his political rise from an early age using the movie business and bodybuilding as the means to escape a depressing home. Leigh portrays Schwarzenegger as obsessed with power and quotes him as saying, "I wanted to be part of the small percentage of people who were leaders, not the large mass of followers. I think it is because I saw leaders use 100% of their potential – I was always fascinated by people in control of other people." Schwarzenegger has said that it was never his intention to enter politics, but he says, "I married into a political family. You get together with them and you hear about policy, about reaching out to help people. I was exposed to the idea of being a public servant and Eunice and Sargent Shriver became my heroes." Eunice Kennedy Shriver was the sister of John F. Kennedy, and mother-in-law to Schwarzenegger; Sargent Shriver is husband to Eunice and father-in-law to Schwarzenegger. Schwarzenegger cannot run for U.S. president as he is not a natural-born citizen of the United States. Schwarzenegger is a dual Austrian and United States citizen. He has held Austrian citizenship since birth and U.S. citizenship since becoming naturalized in 1983. Being Austrian and thus European, he was able to win the 2007 European Voice campaigner of the year award for taking action against climate change with the California Global Warming Solutions Act of 2006 and plans to introduce an emissions trading scheme with other US states and possibly with the EU. Because of his personal wealth from his acting career, Schwarzenegger did not accept his governor's salary of $175,000 per year. Schwarzenegger's endorsement in the Republican primary of the 2008 U.S. presidential election was highly sought; despite being good friends with candidates Rudy Giuliani and Senator John McCain, Schwarzenegger remained neutral throughout 2007 and early 2008. Giuliani dropped out of the presidential race on January 30, 2008, largely because of a poor showing in Florida, and endorsed McCain. Later that night, Schwarzenegger was in the audience at a Republican debate at the Ronald Reagan Presidential Library in California. The following day, he endorsed McCain, joking, "It's Rudy's fault!" (in reference to his friendships with both candidates and that he could not make up his mind). Schwarzenegger's endorsement was thought to be a boost for Senator McCain's campaign; both spoke about their concerns for the environment and economy. In its April 2010 report, Progressive ethics watchdog group Citizens for Responsibility and Ethics in Washington named Schwarzenegger one of 11 "worst governors" in the United States because of various ethics issues throughout Schwarzenegger's term as governor. Governor Schwarzenegger played a significant role in opposing Proposition 66, a proposed amendment of the Californian Three Strikes Law, in November 2004. This amendment would have required the third felony to be either violent or serious to mandate a 25-years-to-life sentence. In the last week before the ballot, Schwarzenegger launched an intense campaign against Proposition 66. He stated that "it would release 26,000 dangerous criminals and rapists". Although he began his tenure as governor with record high approval ratings (as high as 65% in May 2004), he left office with a near-record low 23% only one percent higher than that of Gray Davis, when he was recalled in October 2003. Death of Luis Santos In May 2010, Esteban Núñez pleaded guilty to voluntary manslaughter and was sentenced to 16 years in prison for the death of Luis Santos. Núñez is the son of Fabian Núñez, then California Assembly Speaker of the House and a close friend and staunch political ally of then governor Schwarzenegger. As a personal favor to "a friend", just hours before he left office, and as one of his last official acts, Schwarzenegger commuted Núñez's sentence by more than half, to seven years. He believed that Núñez's sentence was "excessive" in comparison with the same prison term imposed on Ryan Jett, the man who fatally stabbed Santos. Against protocol, Schwarzenegger did not inform Santos' family or the San Diego County prosecutors about the commutation. They learned about it in a call from a reporter. The Santos family, along with the San Diego district attorney, sued to stop the commutation, claiming that it violated Marsy's Law. In September 2012, Sacramento County superior court judge Lloyd Connelly stated, "Based on the evidentiary records before this court involving this case, there was an abuse of discretion...This was a distasteful commutation. It was repugnant to the bulk of the citizenry of this state." However, Connelly ruled that Schwarzenegger remained within his executive powers as governor. Subsequently, as a direct result of the way the commutation was handled, Governor Jerry Brown signed a bipartisan bill that allows offenders' victims and their families to be notified at least 10 days before any commutations. Núñez was released from prison after serving less than six years. Drug use and allegations of sexual misconduct During his initial campaign for governor in 2003, allegations of sexual and personal misconduct were raised against Schwarzenegger. Within the last five days before the election, news reports appeared in the Los Angeles Times recounting decades-old allegations of sexual misconduct from six individual women. Schwarzenegger responded to the allegations in 2004 admitting that he has "behaved badly sometimes" and apologized, but also stated that "a lot of [what] you see in the stories is not true". One of the women who came forward was British television personality Anna Richardson, who settled a libel lawsuit in August 2006 against Schwarzenegger; his top aide, Sean Walsh; and his publicist, Sheryl Main. A joint statement read: "The parties are content to put this matter behind them and are pleased that this legal dispute has now been settled." In 2023, Schwarzenegger revisited the issue while promoting his new three-part biographical documentary on Netflix called Arnold. Schwarzenegger stated that he was "totally wrong". During this time a 1977 interview in adult magazine Oui gained attention, in which Schwarzenegger discussed using substances such as marijuana. Schwarzenegger is shown smoking a marijuana joint after winning Mr. Olympia in 1975 in the documentary film Pumping Iron (1977). In an interview with GQ magazine in October 2007, Schwarzenegger said, "[Marijuana] is not a drug. It's a leaf. My drug was pumping iron, trust me." His spokesperson later said the comment was meant to be a joke. Citizenship Schwarzenegger became a naturalized U.S. citizen on September 17, 1983. Shortly before he gained his citizenship, he asked the Austrian authorities for the right to keep his Austrian citizenship, as Austria does not usually allow dual citizenship. His request was granted, and he retained his Austrian citizenship. In 2005, Peter Pilz, a member of the Austrian Parliament from the Austrian Green Party, unsuccessfully advocated for Parliament to revoke Schwarzenegger's Austrian citizenship due to his decision not to prevent the executions of Donald Beardslee and Stanley Williams. Pilz argued that Schwarzenegger caused damage to Austria's reputation in the international community because Austria abolished the death penalty in 1968. Pilz based his argument on Article 33 of the Austrian Citizenship Act, which states: "A citizen, who is in the public service of a foreign country, shall be deprived of his citizenship if he heavily damages the reputation or the interests of the Austrian Republic." Pilz claimed that Schwarzenegger's actions in support of the death penalty (prohibited in Austria under Protocol 13 of the European Convention on Human Rights) had damaged Austria's reputation. Schwarzenegger explained his actions by pointing out that his only duty as Governor of California with respect to the death penalty was to correct an error by the justice system by pardon or clemency if such an error had occurred. Environmental record On September 27, 2006, Schwarzenegger signed the Global Warming Solutions Act of 2006, creating the nation's first cap on greenhouse gas emissions. The law set new regulations on the amount of emissions utilities, refineries, and manufacturing plants are allowed to release into the atmosphere. Schwarzenegger also signed a second global warming bill that prohibits large utilities and corporations in California from making long-term contracts with suppliers who do not meet the state's greenhouse gas emission standards. The two bills are part of a plan to reduce California's emissions by 25 percent to 1990s levels by 2020. In 2005, Schwarzenegger issued an executive order calling to reduce greenhouse gases to 80 percent below 1990 levels by 2050. Schwarzenegger signed another executive order on October 17, 2006, allowing California to work with the Northeast's Regional Greenhouse Gas Initiative. They plan to reduce carbon dioxide emissions by issuing a limited amount of carbon credits to each power plant in participating states. Any power plants that exceed emissions for the number of carbon credits will have to purchase more credits to cover the difference. The plan took effect in 2009. In addition to using his political power to fight global warming, the governor has taken steps at his home to reduce his personal carbon footprint. Schwarzenegger has adapted one of his Hummers to run on hydrogen and another to run on biofuels. He has also installed solar panels to heat his home. In respect for his contribution to the direction of the US motor industry, Schwarzenegger was invited to open the 2009 SAE World Congress in Detroit on April 20, 2009. In 2011, Schwarzenegger founded the R20 Regions of Climate Action to develop a sustainable, low-carbon economy. In 2017, he joined French President Emmanuel Macron in calling for the adoption of a Global Pact for the Environment. In 2017, Schwarzenegger launched the Austrian World Summit, an international climate conference that is held annually in Vienna, Austria. The Austrian World Summit is organized by the Schwarzenegger Climate Initiative and aims is to bring together representatives from politics, civil society and business to create a broad alliance for climate protection and to identify concrete solutions to the climate crisis. Electoral history Presidential ambitions Presidential aspirations by the Austrian-born Schwarzenegger would be blocked by a constitutional hurdle; Article II, Section I, Clause V prevents individuals who are not natural-born citizens of the United States from assuming the office. The Equal Opportunity to Govern Amendment in 2003 was widely accredited as the "Amend for Arnold" bill, which would have added an amendment to the U.S. Constitution allowing his run. In 2004, the "Amend for Arnold" campaign was launched, featuring a website and TV advertising promotion. In June 2007, Schwarzenegger was featured on the cover of Time magazine with Michael Bloomberg, and subsequently, the two joked about a presidential ticket together. Business career Schwarzenegger has also enjoyed a highly successful business career. Following his move to the United States, Schwarzenegger became a "prolific goal setter" and would write his objectives at the start of the year on index cards, like starting a mail order business or buying a new car – and succeed in doing so. As a result of his early business and investment success, Schwarzenegger became a millionaire by the age of 25, well before making a name for himself in Hollywood. His path to financial independence came as a result of his success as a proactive businessman and investor involved with a series of lucrative business ventures and real estate investments. Early ventures In 1968, Schwarzenegger and fellow bodybuilder Franco Columbu started a bricklaying business. The business flourished thanks to the pair's marketing savvy and an increased demand following the 1971 San Fernando earthquake. When signs of profitability emerged as business began to pick up, Schwarzenegger and Columbu rolled over the profits from their bricklaying venture to start a mail-order business that sold bodybuilding and fitness-related equipment and instructional tapes. Investments Schwarzenegger transferred profits from the mail-order business and his bodybuilding-competition winnings by rolling the proceeds into his first real estate investment: an apartment building he purchased for $10,000. Schwarzenegger would later go on to invest in a number of real estate holding companies and investment ventures across the United States and around the world. Schwarzenegger and fellow Hollywood veteran actor and industry adversary Sylvester Stallone brought their long-storied industry rivalry to an end by both investing in the Planet Hollywood chain of international theme restaurants (modeled after the Hard Rock Cafe) along with Bruce Willis and Demi Moore. However, Schwarzenegger severed his financial ties with the chain in early 2000. Schwarzenegger remarked that the restaurant did not achieve the success that he had hoped for, claiming he wanted to focus his attention on "new US global business ventures" and his then-burgeoning acting career. Schwarzenegger also made a private commercial real estate investment in the Easton Town Center, a shopping mall located in Columbus, Ohio. He has talked about some of those who have helped him over the years in business: "I couldn't have learned about business without a parade of teachers guiding me... from Milton Friedman to Donald Trump... and now, Les Wexner and Warren Buffett. I even learned a thing or two from Planet Hollywood, such as when to get out! And I did!" He has significant equity ownership in Dimensional Fund Advisors, an Austin-based investment firm. Schwarzenegger is also the owner of Arnold's Sports Festival, a sports and fitness festival which he started in 1989 and is held annually in Columbus, Ohio. It is a festival that hosts thousands of international health and fitness professionals which has also expanded into a three-day expo. He also owns a film production company called Oak Productions, Inc. and Fitness Publications, a joint book publishing venture partnered with Simon & Schuster. In 2018, Schwarzenegger partnered with basketball player LeBron James to establish Ladder, a company that developed nutritional supplements to help athletes with severe cramps. The pair sold Ladder to Openfit for an undisclosed amount in 2020 after reporting more than $4 million in sales for that year. Restaurant In 1992, Schwarzenegger and his wife opened a restaurant in Santa Monica called Schatzi On Main. Schatzi literally means "little treasure," and colloquially "honey" or "darling" in German. In 1998, he sold his restaurant. Wealth Schwarzenegger's net worth had been conservatively estimated at $100 million to $200 million. After separating from his wife, Maria Shriver, in 2011, it was estimated that his net worth had been approximately $400 million, and even as high as $800 million, based on tax returns he filed in 2006. Over the years, he shrewdly invested his bodybuilding and film earnings in an extensive array of stocks, bonds, privately controlled companies, and investment-grade real estate across the United States and worldwide, making his net worth difficult to accurately calculate, particularly in light of declining real estate values owing to economic recessions in the United States and Europe that occurred during the late 2000s. In June 1997, he spent $38 million of his own money on a private Gulfstream jet. Regarding his private fortune, Schwarzenegger once quipped: "Money doesn't make you happy. I now have $50 million, but I was just as happy when I had $48 million." Commercial advertisements Schwarzenegger has also appeared in a series of commercials for the Machine Zone game Mobile Strike as a military commander and spokesman. Personal life Early relationships In 1969, Schwarzenegger met Barbara Outland (later Barbara Outland Baker), an English teacher with whom he lived until 1974. Schwarzenegger said of Baker in his 1977 memoir, "Basically it came down to this: she was a well-balanced woman who wanted an ordinary, solid life, and I was not a well-balanced man, and hated the very idea of ordinary life." Baker has described Schwarzenegger as a "joyful personality, totally charismatic, adventurous, and athletic" but claims that towards the end of the relationship he became "insufferable—classically conceited—the world revolved around him". Baker published her memoir in 2006, entitled Arnold and Me: In the Shadow of the Austrian Oak. Although Baker painted an unflattering portrait of her former lover at times, Schwarzenegger actually contributed to the tell-all book with a foreword, and also met with Baker for three hours. Baker claims that she only learned of his being unfaithful after they split, and talks of a turbulent and passionate love life. Schwarzenegger has made it clear that their respective recollection of events can differ. The couple first met six to eight months after his arrival in the U.S. Their first date was watching the first Apollo Moon landing on television. They shared an apartment in Santa Monica, California, for three and a half years, and having little money, they would visit the beach all day or have barbecues in the back yard. Although Baker claims that when she first met Schwarzenegger, he had "little understanding of polite society" and she found him a turn-off, she says, "He's as much a self-made man as it's possible to be—he never got encouragement from his parents, his family, his brother. He just had this huge determination to prove himself, and that was very attractive ... I'll go to my grave knowing Arnold loved me." Schwarzenegger met his next lover, Beverly Hills hairdresser's assistant Sue Moray, on Venice Beach in July 1977. According to Moray, the couple led an open relationship: "We were faithful when we were both in LA... but when he was out of town, we were free to do whatever we wanted." Schwarzenegger met television journalist Maria Shriver, niece of President John F. Kennedy, at the Robert F. Kennedy Tennis Tournament in August 1977. He went on to have a relationship with both Moray and Shriver until August 1978 when Moray (who knew of his relationship with Shriver) issued an ultimatum. Marriage and family On April 26, 1986, Schwarzenegger married Shriver in Hyannis, Massachusetts. They have four children, including Katherine Schwarzenegger and Patrick Schwarzenegger. All of their children were born in Los Angeles. The family lived in an home in the Brentwood neighborhood of Los Angeles, California, with vacation homes in Sun Valley, Idaho, and Hyannis Port, Massachusetts. They attended St. Monica's Catholic Church. Divorce On May 9, 2011, Shriver and Schwarzenegger ended their relationship after 25 years of marriage with Shriver moving out of their Brentwood mansion. On May 16, 2011, the Los Angeles Times revealed that Schwarzenegger had fathered a son more than 14 years earlier with an employee in their household, Mildred Patricia "Patty" Baena. "After leaving the governor's office I told my wife about this event, which occurred over a decade ago," Schwarzenegger said to the Times. In the statement, Schwarzenegger did not mention that he had confessed to his wife only after she had confronted him with the information, which she had done after confirming with the housekeeper what she had suspected about the child. Baena is of Guatemalan origin. She was employed by the family for 20 years and retired in January 2011. The pregnant Baena was working in the home while Shriver was pregnant with the youngest of the couple's four children. Baena's son with Schwarzenegger was born days after Shriver gave birth. Schwarzenegger said that it took seven or eight years before he found out that he had fathered a child with his housekeeper. It was not until the boy "started looking like [him] ... that [he] put things together". Schwarzenegger has taken financial responsibility for the child "from the start and continued to provide support". KNX 1070 radio reported that, in 2010, he bought a new four-bedroom house with a pool for Baena and their son in Bakersfield, California. Baena separated from her husband, Rogelio, a few months after Joseph's birth. She filed for divorce in 2008. Rogelio said that the child's birth certificate was falsified and that he planned to sue Schwarzenegger for engaging in conspiracy to falsify a public document, a serious crime in California. Pursuant to the divorce judgment, Schwarzenegger kept the Brentwood home, while Shriver purchased a new home nearby so that the children could travel between their parents' homes. They shared custody of the two youngest children. Schwarzenegger came under fire after the initial petition did not include spousal support and a reimbursement of attorney's fees. However, he claims this was not intentional and that he signed the initial documents without having properly read them. He filed amended divorce papers remedying this. Schwarzenegger and Shriver finalized their divorce in 2021, ten years after separating. In June 2022, a jury ruled that Maria Shriver was entitled to half of her ex-husband's post-divorce savings that he earned from 1986 to 2011, including a pension. After the scandal, Danish-Italian actress Brigitte Nielsen came forward and stated that she too had an affair with Schwarzenegger during the production of Red Sonja, while he had just started his relationship with Shriver. When asked in January 2014, "Of all the things you are famous for ... which are you least proud of?" Schwarzenegger replied, "I'm least proud of the mistakes I made that caused my family pain and split us up." Accidents, injuries, and other health problems Health problems Schwarzenegger was born with a bicuspid aortic valve, an aortic valve with only two leaflets, where a normal aortic valve has three. He opted in 1997 for a replacement heart valve made from his own pulmonic valve, which itself was replaced with a cadaveric pulmonic valve, in a Ross procedure; medical experts predicted he would require pulmonic heart valve replacement surgery within the next two to eight years because his valve would progressively degrade. Schwarzenegger apparently opted against a mechanical valve, the only permanent solution available at the time of his surgery, because it would have sharply limited his physical activity and capacity to exercise. On March 29, 2018, Schwarzenegger underwent emergency open-heart surgery for replacement of his replacement pulmonic valve. He said about his recovery: "I underwent open-heart surgery this spring, I had to use a walker. I had to do breathing exercises five times a day to retrain my lungs. I was frustrated and angry, and in my worst moments, I couldn't see the way back to my old self." In 2020, 23 years after his first surgery, Schwarzenegger underwent a surgery for a new aortic valve. Accidents, injuries On December 9, 2001, he broke six ribs and was hospitalized for four days after a motorcycle crash in Los Angeles. Schwarzenegger saved a drowning man in 2004 while on vacation in Hawaii by swimming out and bringing him back to shore. On January 8, 2006, while Schwarzenegger was riding his Harley Davidson motorcycle in Los Angeles with his son Patrick in the sidecar, another driver backed into the street he was riding on, causing him and his son to collide with the car at a low speed. While his son and the other driver were unharmed, Schwarzenegger sustained an injury to his lip requiring 15 stitches. "No citations were issued," said Officer Jason Lee, a Los Angeles Police Department spokesman. Schwarzenegger did not obtain his motorcycle license until July 3, 2006. Schwarzenegger tripped over his ski pole and broke his right femur while skiing in Sun Valley, Idaho, with his family on December 23, 2006. On December 26, he underwent a 90-minute operation in which cables and screws were used to wire the broken bone back together. He was released from St. John's Health Center on December 30, 2006. Schwarzenegger's private jet made an emergency landing at Van Nuys Airport on June 19, 2009, after the pilot reported smoke coming from the cockpit, according to a statement released by his press secretary. No one was harmed in the incident. On May 18, 2019, while on a visit to South Africa, Schwarzenegger was attacked and dropkicked from behind by an unknown malefactor while giving autographs to his fans at one of the local schools. Despite the surprise and unprovoked nature of the attack, he reportedly suffered no injuries and continued to interact with fans. The attacker was apprehended and Schwarzenegger declined to press charges against him. Schwarzenegger was involved in a multi-vehicle collision on the afternoon of Friday, January 21, 2022. Schwarzenegger was driving a black GMC Yukon SUV near the intersections of Sunset Blvd and Allenford Ave in the Brentwood neighborhood of Los Angeles, when his vehicle collided with a red Toyota Prius. The driver of the Prius was transported to the hospital for injuries sustained to her head. Schwarzenegger was uninjured. Height Schwarzenegger's official height of has been brought into question by several articles. During his bodybuilding days in the late 1960s, it was claimed that he measured . However, in 1988, both the Daily Mail and Time Out magazine mentioned that Schwarzenegger appeared noticeably shorter. Prior to running for governor, Schwarzenegger's height was once again questioned in an article by the Chicago Reader. As governor, Schwarzenegger engaged in a light-hearted exchange with Assemblyman Herb Wesson over their heights. At one point, Wesson made an unsuccessful attempt to, in his own words, "settle this once and for all and find out how tall he is" by using a tailor's tape measure on the Governor. Schwarzenegger retaliated by placing a pillow stitched with the words "Need a lift?" on the Wesson's chair before a negotiating session in his office. Democrat Bob Mulholland also claimed Schwarzenegger was and that he wore risers in his boots. In 1999, Men's Health magazine stated his height was . Autobiography Schwarzenegger's autobiography, Total Recall, was released in October 2012. He devotes one chapter called "The Secret" to his extramarital affair. The majority of his book is about his successes in the three major chapters in his life: bodybuilder, actor, and Governor of California. Vehicles Growing up during the Allied occupation of Austria, Schwarzenegger commonly saw heavy military vehicles such as tanks as a child. As a result, he paid $20,000 to bring his Austrian Army M47 Patton tank (331) to the United States, which he previously operated during his mandatory service in 1965. However, he later obtained his vehicle in 1991/2, during his tenure as the Chairmen of the President's Council on Sports, Fitness, and Nutrition, and now uses it to support his charity. His first car ever was an Opel Kadett in 1969 after serving in the Austrian army, then he rode a Harley-Davidson Fat Boy in 1991. Moreover, he came to develop an interest in large vehicles and became the first civilian in the U.S. to purchase a Humvee. He was so enamored by the vehicle that he lobbied the Humvee's manufacturer, AM General, to produce a street-legal, civilian version, which they did in 1992; the first two Hummer H1s they sold were also purchased by Schwarzenegger. In 2010, he had one regular and three running on non-fossil power sources; one for hydrogen, one for vegetable oil, and one for biodiesel. Schwarzenegger was in the news in 2014 for buying a rare Bugatti Veyron Grand Sport Vitesse. He was spotted and filmed in 2015 in his car, painted silver with bright aluminum forged wheels. His Bugatti has its interior adorned in dark brown leather. In 2017, Schwarzenegger acquired a Mercedes G-Class modified for all-electric drive. The Hummers that Schwarzenegger bought in 1992 are so large—each weighs and is wide—that they are classified as large trucks, and U.S. fuel economy regulations do not apply to them. During the gubernatorial recall campaign, he announced that he would convert one of his Hummers to burn hydrogen. The conversion was reported to have cost about $21,000. After the election, he signed an executive order to jump-start the building of hydrogen refueling plants called the California Hydrogen Highway Network, and gained a U.S. Department of Energy grant to help pay for its projected US$91,000,000 cost. California took delivery of the first H2H (Hydrogen Hummer) in October 2004. Public image and legacy Schwarzenegger has been involved with the Special Olympics for many years after they were founded by his ex-mother-in-law Eunice Kennedy Shriver. In 2007, Schwarzenegger was the official spokesperson for the Special Olympics held in Shanghai, China. Schwarzenegger believes that quality school opportunities should be made available to children who might not normally be able to access them. In 1995, he founded the Inner City Games Foundation (ICG) which provides cultural, educational and community enrichment programming to youth. ICG is active in 15 cities around the country and serves over 250,000 children in over 400 schools countrywide. He has also been involved with After-School All-Stars and founded the Los Angeles branch in 2002. ASAS is an after school program provider, educating youth about health, fitness and nutrition. On February 12, 2010, Schwarzenegger took part in the Vancouver Olympic Torch relay. He handed off the flame to the next runner, Sebastian Coe. Schwarzenegger had a collection of Marxist busts, which he requested from Russian friends during the dissolution of the Soviet Union, as they were being destroyed. In 2011, he revealed that his wife had requested their removal, but he kept the one of Vladimir Lenin present, since "he was the first". In 2015, he said he kept the Lenin bust to "show losers." Schwarzenegger is a supporter of Israel, and has participated in a Los Angeles pro-Israel rally among other similar events. In 2004, Schwarzenegger visited Israel to break ground on Simon Wiesenthal Center's Museum of Tolerance Jerusalem, and to lay a wreath at the Yad Vashem Holocaust Memorial, he also met with Prime Minister Ariel Sharon and President Moshe Katsav. In 2011, at the Independence Day celebration hosted by the Israeli Consulate General in Los Angeles, Schwarzenegger said: "I love Israel. When I became governor, Israel was the first country that I visited. When I had the chance to sign a bill calling on California pension funds to divest their money from companies that do business with Iran, I immediately signed that bill", then he added, "I knew that we could not send money to these crazy dictators who hate us and threaten Israel any time they have a bad day." Schwarzenegger supported the 2003 invasion of Iraq. Schwarzenegger also expressed support for the 2011 military intervention in Libya. In 2014, Schwarzenegger released a video message in support of the Euromaidan protests against Ukraine's pro-Russian President Viktor Yanukovych. In 2022, Schwarzenegger released another video message condemning the Russian invasion of Ukraine. Schwarzenegger's Twitter account is one of the 22 accounts that the president of Russia's Twitter account follows. Schwarzenegger, who played football as a boy, grew up watching Bayern Munich and Sturm Graz. He also expressed his admiration of Jürgen Klopp's Liverpool in October 2019. Schwarzenegger inspired many actors to become action heroes, including Dwayne Johnson, Matt McColm, Christian Boeving, Vidyut Jamwal, and Daniel Greene. Boeving's character in the 2003 action film When Eagles Strike was based on Schwarzenegger's image from the late 1980s: mostly on Major "Dutch" Schaefer] from Predator (1987) and Colonel John Matrix from Commando (1985). Schwarzenegger Institute for State and Global Policy In 2012, Schwarzenegger helped to found the Schwarzenegger Institute for State and Global Policy, which is a part of the USC Price School of Public Policy at the University of Southern California. The institute's mission is to "[advance] post-partisanship, where leaders put people over political parties and work together to find the best ideas and solutions to benefit the people they serve" and to "seek to influence public policy and public debate in finding solutions to the serious challenges we face". Schwarzenegger serves as chairman of the institute. Global warming At a 2015 security conference, Schwarzenegger called climate change the issue of our time. He also urged politicians to stop treating climate change as a political issue. 2016 presidential election For the 2016 Republican Party presidential primaries, Schwarzenegger endorsed fellow Republican John Kasich. However, he announced in October that he would not vote for the Republican presidential candidate Donald Trump in that year's United States presidential election, with this being the first time he did not vote for the Republican candidate since becoming a citizen in 1983. Post-2016 In recent years, Schwarzenegger has been advocating for eating less meat, and he is an executive producer alongside James Cameron et al. behind the documentary The Game Changers, that documents the explosive rise of plant-based eating in professional sports, in which he is also featured. In 2017, Schwarzenegger condemned white supremacists who were seen carrying Nazi and Confederate flags by calling their heroes "losers." In 2019, while at the "Arnold Classic Africa" sports competition as an official, Schwarzenegger was attacked by an assailant in a flying kick. The assailant was arrested. Following the January 6 United States Capitol attack by supporters of President Donald Trump, Schwarzenegger posted a video address on social media in which he likened the insurrection to Nazi Germany's Kristallnacht, which he described as "a night of rampage against the Jews carried out [by] the Nazi equivalent of the Proud Boys." He spoke of his father's alcoholism, domestic violence, and abuse, and how it was typical of other former Nazis and collaborators in the post-war era; and described Trump as "a failed leader. He will go down in history as the worst president ever." In late March 2021, Schwarzenegger was interviewed by Politico about the upcoming recall election in California in which he said that "it's pretty much the same atmosphere today as it was then," and when he was asked about Newsom's claim of this being a "Republican recall" he responded that "this recall effort is sparked by ordinary folks," and that this was not a power grab by Republicans. Schwarzenegger has spoken out about COVID-19, urging Americans to wear masks and practice social distancing. In August 2021, he said: "There is a virus here. It kills people and the only way we prevent it is: get vaccinated, wear masks, do social distancing, washing your hands all the time, and not just to think about, 'Well my freedom is being kind of disturbed here.' No, screw your freedom." In February 2022, Schwarzenegger said his diet has been mostly vegan for the past five years, saying it was about 80% plant-based food. He has been outspoken about the benefits of a vegan diet for health and said it had helped him feel "healthier and younger overall". He also credited it to helping him lower his cholesterol. Filmography Awards and honors Bodybuilding Seven-time Mr. Olympia winner Four-time Mr. Universe winner 1969 World Amateur Bodybuilding Champion Entertainment 1977 Golden Globe Award winner 2012 Inkpot Award 2014 Primetime Emmy Award winner for producing the documentary series Years of Living Dangerously Halls of Fame International Sports Hall of Fame (class of 2012) WWE Hall of Fame (class of 2015) Medal for Humanitary Merit of the Austrian Albert Schweitzer Society (2011) Star on the Hollywood Walk of Fame State/local Public art mural portrait "Arnold Schwarzenegger" (2012) by Jonas Never, Venice, Los Angeles Schwarzenegger Institute for State and Global Policy (part of the USC Price School of Public Policy at the University of Southern California) named in his honor. Arnold's Run ski trail at Sun Valley Resort named in his honor. The trail is categorized as a black diamond, or most difficult, for its terrain. International Grand Decoration of Honour for Services to the Republic of Austria in Gold (1993) Cavalier (2011) and Commander (2017) of the French Legion of Honor Honorary Ring of the Federal State of Styria (Austria, June 2017) "A Day for Arnold" on July 30, 2007, in Thal, Austria. For his 60th birthday, the mayor sent Schwarzenegger the enameled address sign (Thal 145) of the house where Schwarzenegger was born, declaring "This belongs to him. No one here will ever be assigned that number again". "Honor et Gloria" White Cross (No.179) – 2023; Ukrainian non-state decoration bestowed by the VGO "Kraina" (NGO) at the request of Mr Anatoliy Ostapenko (member of the Verkhovna Rada) Books See also Kennedy family tree List of U.S. state governors born outside the United States References Footnotes Citations Further reading External links Schwarzenegger Museum |- |- |- |- |- 1947 births Living people 20th-century American businesspeople 20th-century American male actors 20th-century American male writers 20th-century American non-fiction writers 20th-century Austrian businesspeople 20th-century Austrian male actors 20th-century Austrian male writers 20th-century Austrian writers 20th-century Roman Catholics 21st-century American businesspeople 21st-century American male actors 21st-century American male writers 21st-century American non-fiction writers 21st-century American politicians 21st-century Austrian businesspeople 21st-century Austrian male actors 21st-century Austrian male writers 21st-century Austrian politicians 21st-century Austrian writers 21st-century Roman Catholics Activists from California Actors from Graz American actor-politicians American athlete-politicians American autobiographers American bodybuilders American book publishers (people) American businesspeople in retailing American education writers American exercise and fitness writers American film producers American health activists American instructional writers American investors American male film actors American male non-fiction writers American male television actors American male video game actors American male voice actors American male weightlifters American people of Austrian descent American philanthropists American powerlifters American publishers (people) American real estate businesspeople American restaurateurs American Roman Catholics American stock traders Austrian autobiographers Austrian bodybuilders Austrian emigrants to the United States Austrian expatriate male actors in the United States Austrian expatriate sportspeople in the United States Austrian film directors Austrian film producers Austrian health activists Austrian investors Austrian male film actors Austrian male television actors Austrian male voice actors Austrian male weightlifters Austrian non-fiction writers Austrian philanthropists Austrian powerlifters Austrian publishers (people) Austrian real estate businesspeople Austrian restaurateurs Austrian Roman Catholics Austrian soldiers Businesspeople from Graz Businesspeople from Los Angeles Catholics from California Commanders of the Legion of Honour Film directors from Los Angeles Film producers from California Inkpot Award winners Kennedy family Laureus World Sports Awards winners Male actors from California Male actors from Los Angeles Male bodybuilders New Star of the Year (Actor) Golden Globe winners People from Brentwood, Los Angeles People with acquired American citizenship People with congenital heart defects People with multiple nationality Politicians from Graz Politicians from Los Angeles Primetime Emmy Award winners Republican Party governors of California Santa Monica College alumni Schwarzenegger family Shriver family Skydance Media people Sportspeople from Graz Sportspeople from Los Angeles University of California regents University of Wisconsin–Superior alumni Writers from Graz Writers from Los Angeles WWE Hall of Fame inductees

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https://en.wikipedia.org/wiki/Amway

Amway

Amway (short for "American Way") is an American multi-level marketing (MLM) company that sells health, beauty, and home care products. The company was founded in 1959 by Jay Van Andel and Richard DeVos and is based in Ada, Michigan. Amway and its sister companies under Alticor reported sales of $8.9 billion in 2019. It is the largest multi-level marketing company in the world by revenue. It conducts business through a number of affiliated companies in more than a hundred countries and territories. Amway has been investigated in various countries and by institutions such as the Federal Trade Commission (FTC) for alleged pyramid scheme practices. It has never been found guilty, though it has paid tens of millions of dollars to settle these suits. History Founding Jay Van Andel and Richard DeVos had been friends since school days and business partners in various endeavors, including a hamburger stand, an air charter service, and a sailing business. In 1949, they were introduced to the Nutrilite Products Corporation by Van Andel's second cousin Neil Maaskant. DeVos and Van Andel signed up to become distributors for Nutrilite food supplements in August. They sold their first box the next day for $19.50, but lost interest for the next two weeks. They traveled to Chicago to attend a Nutrilite seminar soon afterward, at the urging of Maaskant, who had become their sponsor. They watched promotional filmstrips and listened to talks by company representatives and successful distributors, then they decided to pursue the Nutrilite business. They sold their second box of supplements on their return trip to Michigan, and rapidly proceeded to develop the business further. Earlier in 1949, DeVos and Van Andel had formed the Ja-Ri Corporation (abbreviated from their respective first names) to import wooden goods from South American countries. After the Chicago seminar, they turned Ja-Ri into a Nutrilite distributorship instead. In addition to profits on each product sold, Nutrilite offered commissions on sales made by new distributors introduced to the company by existing distributors—a system known as multi-level marketing or network marketing. By 1958, DeVos and Van Andel had built an organization of more than 5,000 distributors. However, they and some of their top distributors formed the American Way Association, or Amway, in April 1959 in response to concerns about the stability of Nutrilite and in order to represent the distributors and look for additional products to market. Their first product was called Frisk, an organic cleaner developed by a scientist in Ohio. DeVos and Van Andel bought the rights to manufacture and distribute Frisk, and later changed the name to LOC (Liquid Organic Cleaner). They subsequently formed the Amway Sales Corporation to procure and inventory products and to handle sales and marketing plans, and the Amway Services Corporation to handle insurance and other benefits for distributors. In 1960, they purchased a 50% share in Atco Manufacturing Company in Detroit, the original manufacturers of LOC, and changed its name to Amway Manufacturing Corporation. In 1964, the Amway Sales Corporation, Amway Services Corporation, and Amway Manufacturing Corporation merged to form the Amway Corporation. Amway bought a controlling interest in Nutrilite in 1972 and full ownership in 1994. International expansion Amway expanded to Australia in 1971, to parts of Europe in 1973, to parts of Asia in 1974, to Japan in 1979, to Latin America in 1985, to Thailand in 1987, to China in 1995, to Africa in 1997, to India and Scandinavia in 1998, to Ukraine in 2003, to Russia in 2005, and to Vietnam in 2008. In 2014, a Russian loyalty card program called "Alfa-Amway" was created when Amway joined with Alfa-Bank. Amway was ranked by Forbes as the 42nd-largest privately held company in the United States in 2018, and as the number one largest company on the Direct Selling News Global 100 list in 2018. Quixtar The founders of the Amway corporation established a new holding company in 1999, named Alticor, and launched three new companies: a sister (and separate) Internet-focused company named Quixtar, Access Business Group, and Pyxis Innovations. Pyxis, later replaced by Fulton Innovation, pursued research and development and Access Business Group handled manufacturing and logistics for Amway, Quixtar, and third-party clients. The main difference was that all "Independent Business Owners" (IBO) could order directly from Amway on the Internet, rather than from their upline "direct distributor", and have products shipped directly to their home. The Amway name continued being used in the rest of the world. Virtually all Amway distributors in North America switched to Quixtar, prompting Alticor to close Amway North America after 2001. In June 2007, it was announced that the Quixtar brand would be phased out over an eighteen– to twenty-four–month period in favor of a unified Amway brand (Amway Global) worldwide. Global markets According to the Amway website, the company operated in over 100 countries and territories, organized into regional markets: the Americas, Europe, greater China, Japan and Korea, and SE Asia/Australia. Amway's top ten markets are China, Korea, the United States, Japan, Thailand, Taiwan, India, Russia, Malaysia and Italy. In 2008, Alticor announced that two-thirds of the company's 58 markets reported sales increases, including strong growth in the China, Russia, Ukraine and India markets. Amway Australia See Amway Australia Amway China Amway China launched in 1995. In 1998, after abuses of illegal pyramid schemes led to riots, the Chinese government enacted a ban on all direct selling companies, including Amway. After the negotiations, some companies like Amway, Avon, and Mary Kay continued to operate through a network of retail stores promoted by an independent sales force. China introduced new direct selling laws in December 2005, and in December 2006, Amway was one of the first companies to receive a license to resume direct sales. However, the law forbids teachers, doctors, and civil servants from becoming direct sales agents for the company and, unlike in the United States, salespeople in China are ineligible to receive commissions from sales made by the distributors they recruit. In 2006, Amway China had a reported 180,000 sales representatives, 140 stores, and $2 billion in annual sales. In 2007, Amway Greater China and South-east Asia Chief Executive Eva Cheng was ranked no. 88 by Forbes magazine in its list of the World's Most Powerful Women. In 2008, China was Amway's largest market, reporting 28% growth and sales of 17 billion yuan (US$2.5 billion). According to a report in Bloomberg Businessweek in April 2010, Amway had 237 retail shops in China, 160,000 direct sales agents, and $3 billion in revenue. Since then, Amway has been continuing to expand in China, even as the government has been imposing greater restrictions on the company, and launched a WeChat mini-program in 2021. Brands Amway's product line grew from LOC, with the laundry detergent SA8 added in 1960, and later the hair care product Satinique (1965) and the cosmetics line Artistry (1968). In 2018, nutrition and wellness products were 52% of total sales, and beauty and personal care products were 26% of total sales. Household cleaners Amway is best known in North America for its original multi-purpose cleaning product LOC, SA8 laundry detergent, and Dish Drops dishwashing liquid. Consumer Reports conducted blind testing of detergents in 2010 and ranked versions of Amway's Legacy of Clean detergents 9th and 18th of 20 detergents tested. Consumer Reports program manager Pat Slaven recommended against buying the products because consumers can "go to the grocery store and get something that performs a whole lot better for a whole lot less money". Health and beauty Amway's health and beauty brands include Artistry, Satinique, Hymm, Body Series, Glister, Moiskin (South America), Nutrilite, Nutriway (Scandinavia and Australia/New Zealand), Attitude (India), eSpring, Atmosphere and iCook as well as XL and XS Energy drinks. Other Amway brands that were discontinued or replaced include Tolsom, Eddie Funkhouser New York, or beautycycle (Eastern Europe). Artistry Amway's Artistry products include skin care, cosmetics, and anti-aging creams and serums. In 2011, Artistry brand reached sales of $2.8 billion. Nutrilite Amway's largest-selling brand is the Nutrilite range of health supplements (marketed as Nutriway in some countries), and in 2008 Nutrilite sales exceeded $3 billion globally. In 2001, NSF International issued its first five dietary supplement certifications to Nutrilite. In 2011, Nutrilite brand of vitamins and dietary supplements led Amway's sales, totaling almost $4.7 billion. According to Euromonitor International, in 2014, Nutrilite was the world's No. 1 selling vitamins and dietary supplements brand. In 2015, it was reported that according to Euromonitor International, Amway was the largest vitamin and dietary supplement vendor in China, with 11% of a market that generated 100 billion yuan ($15.6 billion) in annual sales. In 2015, it was reported that according to China Confidential consumer brands survey, Amway Nutrilite was the most popular vitamin and dietary supplement brand in China. In January 2009, Amway announced a voluntary recall of Nutrilite and XS Energy Bars after learning that they had possibly been manufactured with Salmonella-contaminated ingredients from Peanut Corporation of America. The company indicated that it had not received any reports of illness in connection with the products. In 2012, the Center for Science in the Public Interest (CSPI), accused Amway of making unsubstantiated and illegal claims about Nutrilite Fruits & Vegetables 2GO Twist Tubes and threatened to launch a class action lawsuit against the company unless it took remedial action. Amway responded that the claims made about the products were properly substantiated and that they did not plan to change the product's labeling but nevertheless would review the statements that CSPI has questioned. CSPI later reported that Amway had agreed to changing product labels by the end of 2014. eSpring Amway's eSpring water filter was introduced in 2000. According to Amway, it was the first system to combine a carbon block filter and ultraviolet light with electronic-monitoring technology in the filter cartridge and it became the first home system to achieve certification for ANSI/NSF Standards 42, 53, and 55. According to Amway, eSpring was the first water treatment system to receive certification for all fifteen NSF/ANSI 401 contaminants which include pharmaceuticals, pesticides and herbicides. The company also claims that, in addition to these 15 contaminants, eSpring is certified for more than 145 potential contaminants, including lead and mercury. eSpring was the first commercial product which employed Fulton Innovation's eCoupled wireless power induction technology. Companies licensing this technology include Visteon, Herman Miller, Motorola and Mobility Electronics. Fulton was a founding member of the Wireless Power Consortium which developed the Qi (inductive power standard). In 2007 eSpring was ranked fifth out of 27 brands in a comparison of water filters by Consumer Reports. XS On January 14, 2015, Amway announced that it had acquired XS Energy, a California-based brand of energy drinks and snacks. The XS Energy brand has been sold as an Amway product since 2003. As of January 2015, it has been distributed in 38 countries, generating annual sales of $150 million. According to Euromonitor International, the XS Energy was the first exclusively sugar-free energy drink brand sold globally. Ditto Delivery Ditto Delivery is Alticor's automatic, monthly replenishment program that fills orders based on customers' predetermined needs. As of May 2001, Ditto Delivery accounted for 30% of Quixtar's North American sales. Business model Amway combines direct selling with a multi-level marketing strategy. Amway distributors, referred to as "independent business owners" (IBOs), may market products directly to potential customers and may also sponsor and mentor other people to become IBOs. IBOs may earn income both from the retail markup on any products they sell personally, plus a performance bonus based on the sales volume they and their downline (IBOs they have sponsored) have generated. People may also register as IBOs to buy products at discounted prices. Harvard Business School, which described Amway as "one of the most profitable direct selling companies in the world", noted that Amway founders Van Andel and DeVos "accomplished their success through the use of an elaborate pyramid-like distribution system in which independent distributors of Amway products received a percentage of the merchandise they sold and also a percentage of the merchandise sold by recruited distributors". Sports sponsorships In December 2006, Alticor secured the naming rights for the Orlando Magic's home basketball arena in Orlando, Florida. The Orlando Magic is owned by the DeVos family. The arena, formerly known as the TD Waterhouse Centre, was renamed the Amway Arena. Its successor, the Amway Center, was opened in 2010, and the older arena was demolished in 2012. In 2009, Amway Global signed a three-year deal with the San Jose Earthquakes Major League Soccer team to become the jersey sponsor. In March 2009, Amway Global signed a multi-year deal to become the presenting partner of the Los Angeles Sol of Women's Professional Soccer. The deal, however, would last only one year, as the Sol folded in 2010. In 2011, Amway signed a three-year deal to be the presenting sponsor of the National Hockey League's Detroit Red Wings. Politics and culture Political contributions In the 1990s, the Amway organization was a major contributor to the Republican Party (GOP) and to the election campaigns of various GOP candidates. Amway and its sales force contributed a substantial amount (up to half) of the total funds ($669,525) for the 1994 political campaign of Republican congresswoman and Amway distributor Sue Myrick (N.C.). According to two reports by Mother Jones magazine, Amway distributor Dexter Yager "used the company's extensive voice-mail system to rally hundreds of Amway distributors into giving a total of $295,871" to Myrick's campaign. According to a campaign staffer quoted by the magazine, Myrick had appeared regularly on the Amway circuit, speaking at hundreds of rallies and selling $5 and $10 audiotapes. Following the 1994 election, Myrick maintained "close ties to Amway and Yager", and raised $100,000 from Amway sources, "most notably through fundraisers at the homes of big distributors", in the 1997–98 election cycle. In October 1994, Amway gave the biggest corporate contribution recorded to that date to a political party for a single election, $2.5 million to the Republican National Committee (RNC), and was the number one corporate political donor in the United States. In the 2004 election cycle, the organization contributed a total of $4 million to a conservative 527 group, Progress for America. In July 1996, Amway co-founder Richard DeVos was honored at a $3 million fundraiser for the Republican Party, and a week later, it was reported that Amway had tried to donate $1.3 million to pay for Republican "infomercials" and televising of the GOP convention on Pat Robertson's Family Channel, but backed off when Democrats criticized the donation as a ploy to avoid campaign-finance restrictions. In April 1997, Richard DeVos and his wife, Helen, gave $1 million to the RNC, which, at the time, was the second-largest soft-money donation ever, behind Amway's 1994 gift of $2.5 million to the RNC. In July 1997, Senate Majority Leader Trent Lott and House Speaker Newt Gingrich slipped a last-minute provision into a hotly contested compromise tax bill that granted Amway and four other companies a tax break on their Asian branches that totaled $19 million. In a column published in the Fort Worth Star-Telegram newspaper in August 1997, reporter Molly Ivins wrote that Amway had "its own caucus in Congress...Five Republican House members are also Amway distributors: Reps. Sue Myrick of North Carolina, Jon Christensen of Nebraska, Dick Chrysler of Michigan, Richard Pombo of California, and John Ensign of Nevada. Their informal caucus meets several times a year with Amway bigwigs to discuss policy matters affecting the company, including China's trade status." A 1998 analysis of campaign contributions conducted by Businessweek found that Amway, along with the founding families and some top distributors, had donated at least $7 million to GOP causes in the preceding decade. Political candidates who received campaign funding from Amway in 1998 included Representatives Bill Redmond (R–N.M.), Heather Wilson (R–N.M.), and Jon Christensen (R–Neb). According to a report by the Center for Public Integrity, in the 2004 election cycle, members of the Van Andel and DeVos families were the second, third and fifth largest donors to the Republican party. Dick DeVos, son of Amway founder Richard DeVos and past president of the company, served as Finance Chairman of the Republican National Committee, and his wife Betsy DeVos served as chair of the Michigan Republican Party from 1996 to 2000 and 2003 to 2005. In May 2005, Dick DeVos ran against incumbent Governor Jennifer Granholm in Michigan's 2006 gubernatorial election. DeVos was defeated by Granholm, who won 56% of the popular vote to his 42%. In August 2012, gay rights activist Fred Karger began a movement to boycott Amway in protest of the contribution from a private foundation of Amway President Doug DeVos to the National Organization for Marriage, a political organization which opposes legalization of same-sex marriage in the United States. On February 7, 2017, Betsy DeVos was confirmed by the Senate as the 11th Secretary of Education. Religion Several sources have commented on the promotion of Christian conservative ideology within the Amway organization. Mother Jones magazine described the Amway distributor force as "heavily influenced by the company's dual themes of Christian morality and free enterprise" and operating "like a private political army". In The Cult of Free Enterprise, Stephen Butterfield, who spent time in the Yager group within Amway, wrote "[Amway] sells a marketing and motivational system, a cause, a way of life, in a fervid emotional atmosphere of rallies and political religious revivalism." Philadelphia City Paper correspondent Maryam Henein stated that "The language used in motivational tools for Amway frequently echoes or directly quotes the Bible, with the unstated assumption of a shared Christian perspective." Businessweek correspondents Bill Vlasic and Beth Regan characterized the founding families of Amway as "fervently conservative, fervently Christian, and hugely influential in the Republican Party", noting that "Rich DeVos charged up the troops with a message of Christian beliefs and rock-ribbed conservatism." High-ranking Amway leaders such as Richard DeVos and Dexter Yager were owners and members of the board of Gospel Films, a producer of movies and books geared toward conservative Christians, as well as co-owners (along with Salem Communications) of a right-wing, Christian nonprofit called Gospel Communications International. Yager, interviewed on 60 Minutes in 1983, admitted that he promotes Christianity through his Amway group, but stated that this might not be the case in other Amway groups. Rolling Stone's Bob Moser reported that former Amway CEO and co-founder Richard DeVos is connected with the Dominionist political movement in the United States. Moser states that DeVos was a supporter of the late D. James Kennedy, giving more than $5 million to Kennedy's Coral Ridge Ministries. DeVos was also a founding member and two-time president of the Council for National Policy, a right-wing Christian organization. Sociologist David G. Bromley calls Amway a "quasi-religious corporation" having sectarian characteristics. Bromley and Anson Shupe view Amway as preaching the gospel of prosperity. Patralekha Bhattacharya and Krishna Kumar Mehta, reasoned that although some critics have referred to organizations such as Amway as "cults" and have speculated that they engage in "mind control", there are other explanations that could account for the behavior of distributors. Namely, continued involvement of distributors despite minimal economic return may result from social satisfaction compensating for diminished economic satisfaction. Chamber of commerce Amway co-founder Jay Van Andel (in 1980), and later his son Steve Van Andel (in 2001), were elected by the board of directors of the United States Chamber of Commerce to be the chairman of the private American lobbying organization. Accreditation program In 2006, Amway (then Quixtar in North America) introduced its Professional Development Accreditation Program in response to concerns surrounding business support materials (BSM), including books, tapes and meetings. In 2010 this was superseded by its Accreditation Plus program to ensure that all BSM content is consistent with Amway's quality assurance standards, which approved providers of BSM must abide by. The quality assurance standards state that Promoting political causes or other issues of a personal nature in the Amway Business environment is not permitted Spiritual references are not allowed as the message or focus and presenters may not use the stage as a platform to promote religious and/or personal social beliefs Endorsement or denouncement of specific candidates, political parties, and/or issues, unless specifically related to the operation of an Amway Business is not allowed. Pyramid scheme allegations Robert Carroll, of the Skeptic's Dictionary, has described Amway as a "legal pyramid scheme", and has said that the quasi-religious devotion of its affiliates is used by the company to conceal poor performance rates by distributors. FTC investigation In a 1979 ruling, the Federal Trade Commission found that Amway did not fit the definition of a pyramid scheme because (a) distributors were not paid to recruit people, (b) it did not require distributors to buy a large stock of unmoving inventory, (c) distributors were required to maintain retail sales (at least 10 per month), and (d) the company and all distributors were required to accept returns of excess inventory from down-level distributors. The FTC did, however, find Amway "guilty of price-fixing and making exaggerated income claims"; the company was ordered to stop retail price fixing and allocating customers among distributors and was prohibited from misrepresenting the amount of profit, earnings or sales its distributors are likely to achieve with the business. Amway was ordered to accompany any such statements with the actual averages per distributor, pointing out that more than half of the distributors do not make any money, with the average distributor making less than $100 per month. The order was violated with a 1986 ad campaign, resulting in a $100,000 fine. Studies of independent consumer watchdog agencies have shown that between 990 and 999 of 1000 participants in MLMs that use Amway-type pay plans in fact lose money. According to The Skeptic's Dictionary, "In the United States, the Federal Trade Commission requires Amway to label its products with the message that 54% of Amway recruits make nothing and the rest earn on average $65 a month." Amway India In September 2006, following a public complaint, Andhra Pradesh and Telangana state police (CID) initiated raids and seizures against Amway distributors in the state, and submitted a petition against them, claiming the company violated the Prize Chits and Money Circulation Schemes (Banning) Act. They shut down all corporate offices associated with the Amway organization including the offices of some Amway distributors. The enforcement said that the business model of the company is illegal. The Reserve Bank of India (RBI) had notified the police that Amway in India may be violating certain laws regarding a "money circulation scheme" and the IB Times article writes that "some say ... Amway is really more about making money from recruiting people to become distributors, as opposed to selling products". In 2008, the state government of Andhra Pradesh enacted a ban on Amway media advertisements. On August 6, 2011, Kerala Police sealed the offices of Amway at Kozhikode, Kannur, Kochi, Kottayam, Thrissur, Kollam and Thiruvananthapuram following complaints. In November 2012, the Economic Offences Wing of Kerala Police conducted searches at the offices of Amway at Kozhikode, Thrissur and Kannur as part of its crackdown on money chain activities and closed down the firm's warehouses at these centres. Products valued at 21.4 million rupees (about US$400,000 at the time) were also seized. Later, Area manager of Amway, P. M. Rajkumar, who was arrested following searches was remanded in judicial custody for 14 days. On May 27, 2013, Crime Branch officials of Kerala Police arrested William S. Pinckney, Managing Director & CEO of Amway India Enterprises along with two other directors of the company from Kozhikode. The three were arrested on charges of running a pyramid scheme. They were granted bail the next day and the business was unaffected. On June 8, 2013, Kozhikode Court lifted the freeze on Amway offices in Kerala. On May 26, 2014, Pinckney was arrested by Andhra Pradesh police on the basis of a consumer complaint that alleged unethical circulation of money by Amway. He was subsequently arrested in other criminal cases registered against him in the state on allegations of financial irregularities by the company. Pinckney was jailed for two months until being released on bail. In 2017, a Chandigarh court framed charges, under Section 420 of the Indian Penal Code and the Prize Chits and Money Circulation Scheme (Banning) Act, against two directors of Amway India, William Scot Pinckney and Prithvai Raj Bijlani. This was based on a cheating case filed by eight complainants in 2002, following which the Economic Offences Wing had filed chargesheet in 2012. A revision plea moved by the two Amway officials against the framed charges was dismissed in 2018. In April 2022, the Enforcement Directorate attached both movable and immovable assets of Amway India worth including the firm's factory in Dindigul along with bank accounts under the Prevention of Money Laundering Act (PMLA). U.S. class action settlement On November 3, 2010, Amway announced that it had agreed to pay $56 million—$34 million in cash and $22 million in products—to settle a class action that had been filed in Federal District Court in California in 2007. The class action, which had been brought against Quixtar and several of its top-level distributors, alleged fraud, racketeering, and that the defendants operated as an illegal pyramid scheme. Amway, while noting that the settlement is not an admission of wrongdoing or liability, acknowledged that it had made changes to its business operations as a result of the lawsuit. The settlement is subject to approval by the court, which was expected in early 2011. The economic value of the settlement, including the changes Amway made to its business model, totals $100 million. Lobbying for deregulation The DeVoses supported an amendment to the US House of Representatives' omnibus Financial Services and General Government Appropriations bill for fiscal year 2018 by US Representative John Moolenaar that would have limited the ability of the FTC to investigate whether MLMs are pyramid schemes. The amendment would have barred the Treasury Department, the Justice Department, the Small Business Administration, the Securities and Exchange Commission, the FTC, or any other agencies from using any monies to take enforcement actions against pyramid operations for the fiscal year. It also adopted provisions from H.R. 3409, the so-called "Anti-Pyramid Scheme Promotion Act of 2016", which would blur the lines between legitimate MLM activity and pyramid schemes established under the original 1979 FTC case by deeming sales made to people inside the company as sales to an "ultimate user," thus erasing the key distinction made in the ruling between sales to actual consumers of a product and sales made to members of the MLM network as part of recruitment of members or to qualify for commissions. The amendment was opposed by a coalition of consumer interest groups including Consumer Action, the Consumer Federation of America, Consumers Union (the publisher of Consumer Reports magazine), Consumer Watchdog, the National Consumers League, and the United States Public Interest Research Group (US PIRG), as well as Truth in Advertising (TINA.org) in its original incarnation. Other legal actions Canadian tax fraud case In 1982, Amway co-founders, Richard M. DeVos and Jay Van Andel, along with Amway's executive vice president for corporate services, William J. Discher Jr., were indicted in Canada on several criminal charges, including allegations that they underreported the value of goods brought into the country and had defrauded the Canadian government of more than $28 million from 1965 to 1980. The charges were dropped in 1983 after Amway and its Canadian subsidiary pleaded guilty to criminal customs fraud charges. The companies paid a fine of $25 million CAD, the largest fine ever imposed in Canada at the time. In 1989 the company settled the outstanding customs duties for $45 million CAD. RIAA lawsuit The Recording Industry Association of America (RIAA), as part of its anti-piracy efforts, sued Amway and several distributors in 1996, alleging that copyrighted music was used on "highly profitable" training videotapes. Amway denied wrongdoing, blaming the case on a misunderstanding by distributors, and settled the case out of court for $9 million. Amway UK In 2007, Amway's operations were halted in the United Kingdom and Ireland following a yearlong investigation by the UK Department of Trade and Industry, which moved to have Amway banned on the basis that the company had employed deceptive marketing, presented inflated earnings estimates, and lured distributors into buying bogus "motivation and training" tools. In 2008, a UK judge dismissed government claims against Amway's operations, saying major reforms in the prior year (which included banning non-Amway-approved motivational events and materials) had fixed company faults that favoured selling training materials over products and misrepresented earnings. However, the judge also expressed his belief that Amway allowed "misrepresentations" of its business by independent sellers in years past and failed to act decisively against the misrepresentations. Welcome to Life (Poland) In 1997, Amway Poland and Network TwentyOne separately sued the makers of a Polish film, Welcome to Life (), for defamation and copyright violations. Henryk Dederko (the director) and producer were later acquitted on the charge of disseminating false information. The film, banned for 12 years, was one of the highly anticipated movies of 2009's Warsaw Film Festival and was dubbed by the promoters as a "scary movie about brainwashing" It was said to depict hard-sell "pep rallies", and to include statements from distributors that meetings had a similar tone to meetings of the Communist Party before it lost power in Poland. Methods of recruitment that confusingly resembled those of a sect were also described. A bestseller on the local video black market, the film was banned while the suit proceeded. In 2001 a regional court ruled in favor of Network 21; however, in 2004 the Warsaw Regional Court dismissed Amway's civil lawsuit. On appeal Amway won the case and the producers were ordered to pay a fine to a children's charity and publish a public apology. the film was still banned due to an ongoing case brought by "private individuals" ridiculed in the film. On December 18, 2012, the court ruled that film can be screened, but the makers have to remove "untrue information", as the screen near the end of the movie stated that 30% of company income is generated by sales of training materials and that the vast majority of its profits are shared only by the tiny fraction of top distributors. This is not the only court case, so the film is still banned on other grounds. Dr. Phil and Shape Up In March 2004, TV personality Phil McGraw (a.k.a. Dr. Phil) pulled his "Shape Up" line of supplements off the market in the face of an investigation by the U.S. Federal Trade Commission (FTC). The supplements were manufactured by CSA Nutraceuticals, a subsidiary of Alticor's Access Business Group. The FTC later dropped the probe, but in October 2005 a class-action lawsuit was filed against McGraw by several people who used the products and claimed that the supplements, which cost $120 per month, did not stimulate weight loss. In September 2006, a $10.5 million settlement was reached, in which Alticor agreed to provide $4.5 million in cash and $6 million in Nutrilite products to disgruntled users of Shape Up. Procter & Gamble Some Amway distributors distributed an urban legend that the (old) Procter & Gamble service mark was in fact a Satanic symbol or that the CEO of P&G is himself a practicing Satanist. (In some variants of the story, it is also claimed that the CEO of Procter & Gamble donated "satanic tithes" to the Church of Satan.) Procter & Gamble alleged that several Amway distributors were behind a resurgence of the story in the 1990s and sued several independent Amway distributors and the company for defamation and slander. The distributors had used Amway's Amvox voice messaging service to send the rumor to their downline distributors in April 1995. By 2003, after more than a decade of lawsuits in multiple states, all allegations against Amway and Amway distributors had been dismissed. In October 2005, a Utah appeals court reversed part of the decision dismissing the case against the four Amway distributors, and remanded it to the lower court for further proceedings. In the lawsuit against the four former Amway distributors, Procter & Gamble was awarded $19.25 million by a U.S. District Court jury in Salt Lake City on March 20, 2007. On November 24, 2008, the case was officially settled. "It's hard to imagine they'd pursue it this long, especially after all the retractions we put out," said distributor Randy Haugen, a 53-year-old Ogden, Utah, businessman who maintained P&G was never able to show how it was harmed by the rumors. "We are stunned. All of us." Regulatory violations in Vietnam In January 2017, the Vietnam Ministry of Industry and Trade determined that Amway Vietnam had violated federal regulations by engaging in unauthorized multi-level marketing. Other issues Cultism Some Amway distributor groups have been accused of using "cult-like" tactics to attract new distributors and keep them involved and committed. Allegations include resemblance to a Big Brother organization with a paranoid attitude toward insiders critical of the organization, seminars and rallies resembling religious revival meetings, and enormous involvement of distributors despite minimal incomes. An examination of the 1979–1980 tax records in the state of Wisconsin showed that the Direct Distributors reported a net loss of $918 on average. Dateline NBC In 2004, Dateline NBC featured a critical report based on a yearlong undercover investigation of business practices of Quixtar. The report noted that the average distributor makes only about $1,400 per year and that many of the "high level distributors singing the praises of Quixtar" are actually "making most of their money by selling motivational books, tapes and seminars; not Quixtar's cosmetics, soaps, and electronics": In fact, about twenty high level distributors are part of an exclusive club; one that those hundreds of thousands of other distributors don't get to join. For years only a privileged few, including Bill Britt, have run hugely profitable businesses selling all those books, tapes and seminars; things the rank and file distributors can't sell themselves but, are told over and over again, they need to buy in order to succeed. The program said that a Quixtar recruiter featured in the report made misleading and inconsistent statements about Quixtar earnings during a recruitment meeting and had an outstanding arrest warrant for cocaine possession from the mid-90s. See also List of multi-level marketing companies Morrison v. Amway Corp. References Books American Victory: The Real Story of Today's Amway, published April 1997 by Chapel & Croft Publishing; Amway: The Cult of Free Enterprise, published December 1, 1985, by South End Press; Amway Forever: The Amazing Story of a Global Business Phenomenon (), published August 2011 by John Wiley & Sons; Amway: The True Story of the Company That Transformed the Lives of Millions, published September 1, 1999, by Berkley Publishing Group; An Enterprising Life, published 1998 by HarperCollins; An Uncommon Freedom: The Amway Experience and Why It Grows, published 1982 by Revell; Commitment to excellence: The Remarkable Amway Story, published 1986 by Benjamin; Compassionate Capitalism: People Helping People Help Themselves, published September 1994 by Penguin Books; Empire of Freedom: The Amway Story and What It Means to You, published September 3, 1997, by Prima Lifestyles; How to Be Like Rich DeVos: Succeeding with Integrity in Business and Life, published 2004 by Health Communications, Inc; Merchants of Deception: An Insider's Chilling Look at the Worldwide, Multi-Billion Dollar Conspiracy of Lies That Is Amway and Its Motivational Organizations, published 2009 by BookSurge Publishing; The First Eleven: The Growth of Amway in Britain Through the Lives of Its Local Heroes, published 1984 by AM Publishing; Promises to Keep: The Amway Phenomenon and How It Works, published 1986 by Berkley Books; The Direct Selling Revolution: Understanding the Growth of the Amway Corporation, published 1993 by WileyBlackwell; The Possible Dream: A Candid Look At Amway, published 1977 by Revell; Profiles of the American Dream: Rich DeVos and Jay Van Andel and the Remarkable Beginnings of Amway, 1997 by Premiere Films External links 1959 establishments in Michigan Companies based in Kent County, Michigan Multi-level marketing companies Privately held companies based in Michigan Privately held companies of the United States Retail companies established in 1959

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https://en.wikipedia.org/wiki/Adam%20Smith

Adam Smith

Adam Smith (baptised 1723 – 17 July 1790) was a Scottish economist and philosopher who was a pioneer in the thinking of political economy and key figure during the Scottish Enlightenment. Seen by some as "The Father of Economics" or "The Father of Capitalism", he wrote two classic works, The Theory of Moral Sentiments (1759) and An Inquiry into the Nature and Causes of the Wealth of Nations (1776). The latter, often abbreviated as The Wealth of Nations, is considered his magnum opus and the first modern work that treats economics as a comprehensive system and as an academic discipline. Smith refuses to explain the distribution of wealth and power in terms of God's will and instead appeals to natural, political, social, economic and technological factors and the interactions between them. Among other economic theories, the work introduced Smith's idea of absolute advantage. Smith studied social philosophy at the University of Glasgow and at Balliol College, Oxford, where he was one of the first students to benefit from scholarships set up by fellow Scot John Snell. After graduating, he delivered a successful series of public lectures at the University of Edinburgh, leading him to collaborate with David Hume during the Scottish Enlightenment. Smith obtained a professorship at Glasgow, teaching moral philosophy and during this time, wrote and published The Theory of Moral Sentiments. In his later life, he took a tutoring position that allowed him to travel throughout Europe, where he met other intellectual leaders of his day. As a reaction to the common policy of protecting national markets and merchants, what came to be known as mercantilism—nowadays often referred to as "cronyism" or "crony capitalism"—Smith laid the foundations of classical free market economic theory. The Wealth of Nations was a precursor to the modern academic discipline of economics. In this and other works, he developed the concept of division of labour and expounded upon how rational self-interest and competition can lead to economic prosperity. Smith was controversial in his own day and his general approach and writing style were often satirised by writers such as Horace Walpole. Biography Early life Smith was born in Kirkcaldy, in Fife, Scotland. His father, also Adam Smith, was a Scottish Writer to the Signet (senior solicitor), advocate and prosecutor (judge advocate) and also served as comptroller of the customs in Kirkcaldy. Smith's mother was born Margaret Douglas, daughter of the landed Robert Douglas of Strathendry, also in Fife; she married Smith's father in 1720. Two months before Smith was born, his father died, leaving his mother a widow. The date of Smith's baptism into the Church of Scotland at Kirkcaldy was 5 June 1723 and this has often been treated as if it were also his date of birth, which is unknown. Although few events in Smith's early childhood are known, the Scottish journalist John Rae, Smith's biographer, recorded that Smith was abducted by Romani at the age of three and released when others went to rescue him. Smith was close to his mother, who probably encouraged him to pursue his scholarly ambitions. He attended the Burgh School of Kirkcaldy—characterised by Rae as "one of the best secondary schools of Scotland at that period"—from 1729 to 1737, he learned Latin, mathematics, history, and writing. Formal education Smith entered the University of Glasgow at age 14 and studied moral philosophy under Francis Hutcheson. Here he developed his passion for the philosophical concepts of reason, civilian liberties, and free speech. In 1740, he was the graduate scholar presented to undertake postgraduate studies at Balliol College, Oxford, under the Snell Exhibition. Smith considered the teaching at Glasgow to be far superior to that at Oxford, which he found intellectually stifling. In Book V, Chapter II of The Wealth of Nations, he wrote: "In the University of Oxford, the greater part of the public professors have, for these many years, given up altogether even the pretence of teaching." Smith is also reported to have complained to friends that Oxford officials once discovered him reading a copy of David Hume's A Treatise of Human Nature, and they subsequently confiscated his book and punished him severely for reading it. According to William Robert Scott, "The Oxford of [Smith's] time gave little if any help towards what was to be his lifework." Nevertheless, he took the opportunity while at Oxford to teach himself several subjects by reading many books from the shelves of the large Bodleian Library. When Smith was not studying on his own, his time at Oxford was not a happy one, according to his letters. Near the end of his time there, he began suffering from shaking fits, probably the symptoms of a nervous breakdown. He left Oxford University in 1746, before his scholarship ended. In Book V of The Wealth of Nations, Smith comments on the low quality of instruction and the meager intellectual activity at English universities, when compared to their Scottish counterparts. He attributes this both to the rich endowments of the colleges at Oxford and Cambridge, which made the income of professors independent of their ability to attract students, and to the fact that distinguished men of letters could make an even more comfortable living as ministers of the Church of England. Smith's discontent at Oxford might be in part due to the absence of his beloved teacher in Glasgow, Francis Hutcheson, who was well regarded as one of the most prominent lecturers at the University of Glasgow in his day and earned the approbation of students, colleagues, and even ordinary residents with the fervor and earnestness of his orations (which he sometimes opened to the public). His lectures endeavoured not merely to teach philosophy, but also to make his students embody that philosophy in their lives, appropriately acquiring the epithet, the preacher of philosophy. Unlike Smith, Hutcheson was not a system builder; rather, his magnetic personality and method of lecturing so influenced his students and caused the greatest of those to reverentially refer to him as "the never to be forgotten Hutcheson"—a title that Smith in all his correspondence used to describe only two people, his good friend David Hume and influential mentor Francis Hutcheson. Teaching career Smith began delivering public lectures in 1748 at the University of Edinburgh, sponsored by the Philosophical Society of Edinburgh under the patronage of Lord Kames. His lecture topics included rhetoric and belles-lettres, and later the subject of "the progress of opulence". On this latter topic, he first expounded his economic philosophy of "the obvious and simple system of natural liberty". While Smith was not adept at public speaking, his lectures met with success. In 1750, Smith met the philosopher David Hume, who was his senior by more than a decade. In their writings covering history, politics, philosophy, economics, and religion, Smith and Hume shared closer intellectual and personal bonds than with other important figures of the Scottish Enlightenment. In 1751, Smith earned a professorship at Glasgow University teaching logic courses, and in 1752, he was elected a member of the Philosophical Society of Edinburgh, having been introduced to the society by Lord Kames. When the head of Moral Philosophy in Glasgow died the next year, Smith took over the position. He worked as an academic for the next 13 years, which he characterised as "by far the most useful and therefore by far the happiest and most honorable period [of his life]". Smith published The Theory of Moral Sentiments in 1759, embodying some of his Glasgow lectures. This work was concerned with how human morality depends on sympathy between agent and spectator, or the individual and other members of society. Smith defined "mutual sympathy" as the basis of moral sentiments. He based his explanation, not on a special "moral sense" as the Third Lord Shaftesbury and Hutcheson had done, nor on utility as Hume did, but on mutual sympathy, a term best captured in modern parlance by the 20th-century concept of empathy, the capacity to recognise feelings that are being experienced by another being. Following the publication of The Theory of Moral Sentiments, Smith became so popular that many wealthy students left their schools in other countries to enroll at Glasgow to learn under Smith. At this time, Smith began to give more attention to jurisprudence and economics in his lectures and less to his theories of morals. For example, Smith lectured that the cause of increase in national wealth is labour, rather than the nation's quantity of gold or silver, which is the basis for mercantilism, the economic theory that dominated Western European economic policies at the time. In 1762, the University of Glasgow conferred on Smith the title of Doctor of Laws (LL.D.). At the end of 1763, he obtained an offer from British chancellor of the Exchequer Charles Townshend—who had been introduced to Smith by David Hume—to tutor his stepson, Henry Scott, the young Duke of Buccleuch as preparation for a career in international politics. Smith resigned from his professorship in 1764 to take the tutoring position. He subsequently attempted to return the fees he had collected from his students because he had resigned partway through the term, but his students refused. Tutoring, travels, European intellectuals Smith's tutoring job entailed touring Europe with Scott, during which time he educated Scott on a variety of subjects. He was paid £300 per year (plus expenses) along with a £300 per year pension; roughly twice his former income as a teacher. Smith first travelled as a tutor to Toulouse, France, where he stayed for a year and a half. According to his own account, he found Toulouse to be somewhat boring, having written to Hume that he "had begun to write a book to pass away the time". After touring the south of France, the group moved to Geneva, where Smith met with the philosopher Voltaire. From Geneva, the party moved to Paris. Here, Smith met American publisher and diplomat Benjamin Franklin, who a few years later would lead the opposition in the American colonies against four British resolutions from Charles Townshend (in history known as the Townshend Acts), which threatened American colonial self-government and imposed revenue duties on a number of items necessary to the colonies. Smith discovered the Physiocracy school founded by François Quesnay and discussed with their intellectuals. Physiocrats were opposed to mercantilism, the dominating economic theory of the time, illustrated in their motto Laissez faire et laissez passer, le monde va de lui même! (Let do and let pass, the world goes on by itself!). The wealth of France had been virtually depleted by Louis XIV and Louis XV in ruinous wars, and was further exhausted in aiding the American revolutionary soldiers, against the British. Given that the British economy of the day yielded an income distribution that stood in contrast to that which existed in France, Smith concluded that "with all its imperfections, [the Physiocratic school] is perhaps the nearest approximation to the truth that has yet been published upon the subject of political economy." The distinction between productive versus unproductive labour—the physiocratic classe steril—was a predominant issue in the development and understanding of what would become classical economic theory. Later years In 1766, Henry Scott's younger brother died in Paris, and Smith's tour as a tutor ended shortly thereafter. Smith returned home that year to Kirkcaldy, and he devoted much of the next decade to writing his magnum opus. There, he befriended Henry Moyes, a young blind man who showed precocious aptitude. Smith secured the patronage of David Hume and Thomas Reid in the young man's education. In May 1773, Smith was elected fellow of the Royal Society of London, and was elected a member of the Literary Club in 1775. The Wealth of Nations was published in 1776 and was an instant success, selling out its first edition in only six months. In 1778, Smith was appointed to a post as commissioner of customs in Scotland and went to live with his mother (who died in 1784) in Panmure House in Edinburgh's Canongate. Five years later, as a member of the Philosophical Society of Edinburgh when it received its royal charter, he automatically became one of the founding members of the Royal Society of Edinburgh. From 1787 to 1789, he occupied the honorary position of Lord Rector of the University of Glasgow. Death Smith died in the northern wing of Panmure House in Edinburgh on 17 July 1790 after a painful illness. His body was buried in the Canongate Kirkyard. On his deathbed, Smith expressed disappointment that he had not achieved more. Smith's literary executors were two friends from the Scottish academic world: the physicist and chemist Joseph Black and the pioneering geologist James Hutton. Smith left behind many notes and some unpublished material, but gave instructions to destroy anything that was not fit for publication. He mentioned an early unpublished History of Astronomy as probably suitable, and it duly appeared in 1795, along with other material such as Essays on Philosophical Subjects. Smith's library went by his will to David Douglas, Lord Reston (son of his cousin Colonel Robert Douglas of Strathendry, Fife), who lived with Smith. It was eventually divided between his two surviving children, Cecilia Margaret (Mrs. Cunningham) and David Anne (Mrs. Bannerman). On the death in 1878 of her husband, the Reverend W. B. Cunningham of Prestonpans, Mrs. Cunningham sold some of the books. The remainder passed to her son, Professor Robert Oliver Cunningham of Queen's College, Belfast, who presented a part to the library of Queen's College. After his death, the remaining books were sold. On the death of Mrs. Bannerman in 1879, her portion of the library went intact to the New College (of the Free Church) in Edinburgh and the collection was transferred to the University of Edinburgh Main Library in 1972. Personality and beliefs Character Not much is known about Smith's personal views beyond what can be deduced from his published articles. His personal papers were destroyed after his death, per his request. He never married, and seems to have maintained a close relationship with his mother, with whom he lived after his return from France and who died six years before him. Smith was described by several of his contemporaries and biographers as comically absent-minded, with peculiar habits of speech and gait, and a smile of "inexpressible benignity". He was known to talk to himself, a habit that began during his childhood when he would smile in rapt conversation with invisible companions. He also had occasional spells of imaginary illness, and he is reported to have had books and papers placed in tall stacks in his study. According to one story, Smith took Charles Townshend on a tour of a tanning factory, and while discussing free trade, Smith walked into a huge tanning pit from which he needed help to escape. He is also said to have put bread and butter into a teapot, drunk the concoction, and declared it to be the worst cup of tea he ever had. According to another account, Smith distractedly went out walking in his nightgown and ended up outside of town, before nearby church bells brought him back to reality. James Boswell, who was a student of Smith's at Glasgow University, and later knew him at the Literary Club, says that Smith thought that speaking about his ideas in conversation might reduce the sale of his books, so his conversation was unimpressive. According to Boswell, he once told Sir Joshua Reynolds, that "he made it a rule when in company never to talk of what he understood". Smith has been alternatively described as someone who "had a large nose, bulging eyes, a protruding lower lip, a nervous twitch, and a speech impediment" and one whose "countenance was manly and agreeable". Smith is said to have acknowledged his looks at one point, saying, "I am a beau in nothing but my books." Smith rarely sat for portraits, so almost all depictions of him created during his lifetime were drawn from memory. The best-known portraits of Smith are the profile by James Tassie and two etchings by John Kay. The line engravings produced for the covers of 19th-century reprints of The Wealth of Nations were based largely on Tassie's medallion. Religious views Considerable scholarly debate has occurred about the nature of Smith's religious views. His father had shown a strong interest in Christianity and belonged to the moderate wing of the Church of Scotland, and the fact he received the Snell Exhibition suggests that he may have gone to Oxford with the intention of pursuing a career in the Church of England. Anglo-American economist Ronald Coase has challenged the view that Smith was a deist, based on the fact that Smith's writings never explicitly invoke God as an explanation of the harmonies of the natural or the human worlds. According to Coase, though Smith does sometimes refer to the "Great Architect of the Universe", later scholars such as Jacob Viner have "very much exaggerated the extent to which Adam Smith was committed to a belief in a personal God", a belief for which Coase finds little evidence in passages such as the one in the Wealth of Nations in which Smith writes that the curiosity of mankind about the "great phenomena of nature", such as "the generation, the life, growth, and dissolution of plants and animals", has led men to "enquire into their causes", and that "superstition first attempted to satisfy this curiosity, by referring all those wonderful appearances to the immediate agency of the gods. Philosophy afterwards endeavoured to account for them, from more familiar causes, or from such as mankind were better acquainted with than the agency of the gods". Some authors argue that Smith's social and economic philosophy is inherently theological and that his entire model of social order is logically dependent on the notion of God's action in nature. Brendan Long argues that Smith was a theist, whereas according to professor Gavin Kennedy, Smith was "in some sense" a Christian. Smith was also a close friend of David Hume, who, despite debate about his religious views in modern scholarship, was commonly characterised in his own time as an atheist. The publication in 1777 of Smith's letter to William Strahan, in which he described Hume's courage in the face of death in spite of his irreligiosity, attracted considerable controversy. Published works The Theory of Moral Sentiments In 1759, Smith published his first work, The Theory of Moral Sentiments, sold by co-publishers Andrew Millar of London and Alexander Kincaid of Edinburgh. Smith continued making extensive revisions to the book until his death. Although The Wealth of Nations is widely regarded as Smith's most influential work, Smith himself is believed to have considered The Theory of Moral Sentiments to be a superior work. In the work, Smith critically examines the moral thinking of his time, and suggests that conscience arises from dynamic and interactive social relationships through which people seek "mutual sympathy of sentiments." His goal in writing the work was to explain the source of mankind's ability to form moral judgment, given that people begin life with no moral sentiments at all. Smith proposes a theory of sympathy, in which the act of observing others and seeing the judgments they form of both others and oneself makes people aware of themselves and how others perceive their behaviour. The feedback we receive from perceiving (or imagining) others' judgment creates an incentive to achieve "mutual sympathy of sentiments" with them and leads people to develop habits, and then principles, of behaviour, which come to constitute one's conscience. Some scholars have perceived a conflict between The Theory of Moral Sentiments and The Wealth of Nations; the former emphasises sympathy for others, while the latter focuses on the role of self-interest. In recent years, however, some scholars of Smith's work have argued that no contradiction exists. They contend that in The Theory of Moral Sentiments, Smith develops a theory of psychology in which individuals seek the approval of the "impartial spectator" as a result of a natural desire to have outside observers sympathise with their sentiments. Rather than viewing The Theory of Moral Sentiments and The Wealth of Nations as presenting incompatible views of human nature, some Smith scholars regard the works as emphasising different aspects of human nature that vary depending on the situation. In the first part – The Theory of Moral Sentiments – he laid down the foundation of his vision of humanity and society. In the second – The Wealth of Nations – he elaborated on the virtue of prudence, which for him meant the relations between people in the private sphere of the economy. It was his plan to further elaborate on the virtue of justice in the third book. Otteson argues that both books are Newtonian in their methodology and deploy a similar "market model" for explaining the creation and development of large-scale human social orders, including morality, economics, as well as language. Ekelund and Hebert offer a differing view, observing that self-interest is present in both works and that "in the former, sympathy is the moral faculty that holds self-interest in check, whereas in the latter, competition is the economic faculty that restrains self-interest." The Wealth of Nations Disagreement exists between classical and neoclassical economists about the central message of Smith's most influential work: An Inquiry into the Nature and Causes of the Wealth of Nations (1776). Neoclassical economists emphasise Smith's invisible hand, a concept mentioned in the middle of his work – Book IV, Chapter II – and classical economists believe that Smith stated his programme for promoting the "wealth of nations" in the first sentences, which attributes the growth of wealth and prosperity to the division of labour. He elaborated on the virtue of prudence, which for him meant the relations between people in the private sphere of the economy. It was his plan to further elaborate on the virtue of justice in the third book. Smith used the term "the invisible hand" in "History of Astronomy" referring to "the invisible hand of Jupiter", and once in each of his The Theory of Moral Sentiments (1759) and The Wealth of Nations (1776). This last statement about "an invisible hand" has been interpreted in numerous ways. As every individual, therefore, endeavours as much as he can both to employ his capital in the support of domestic industry, and so to direct that industry that its produce may be of the greatest value; every individual necessarily labours to render the annual revenue of the society as great as he can. He generally, indeed, neither intends to promote the public interest, nor knows how much he is promoting it. By preferring the support of domestic to that of foreign industry, he intends only his own security; and by directing that industry in such a manner as its produce may be of the greatest value, he intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was no part of it. By pursuing his own interest he frequently promotes that of the society more effectually than when he really intends to promote it. I have never known much good done by those who affected to trade for the public good. It is an affectation, indeed, not very common among merchants, and very few words need be employed in dissuading them from it. Those who regard that statement as Smith's central message also quote frequently Smith's dictum: It is not from the benevolence of the butcher, the brewer, or the baker, that we expect our dinner, but from their regard to their own interest. We address ourselves, not to their humanity but to their self-love, and never talk to them of our own necessities but of their advantages.However, in The Theory of Moral Sentiments he had a more sceptical approach to self-interest as driver of behaviour:How selfish soever man may be supposed, there are evidently some principles in his nature, which interest him in the fortune of others, and render their happiness necessary to him, though he derives nothing from it except the pleasure of seeing it. In relation to Mandeville's contention that "Private Vices ... may be turned into Public Benefits", Smith's belief that when an individual pursues his self-interest under conditions of justice, he unintentionally promotes the good of society. Self-interested competition in the free market, he argued, would tend to benefit society as a whole by keeping prices low, while still building in an incentive for a wide variety of goods and services. Nevertheless, he was wary of businessmen and warned of their "conspiracy against the public or in some other contrivance to raise prices." Again and again, Smith warned of the collusive nature of business interests, which may form cabals or monopolies, fixing the highest price "which can be squeezed out of the buyers." Smith also warned that a business-dominated political system would allow a conspiracy of businesses and industry against consumers, with the former scheming to influence politics and legislation. Smith states that the interest of manufacturers and merchants "in any particular branch of trade or manufactures, is always in some respects different from, and even opposite to, that of the public ... The proposal of any new law or regulation of commerce which comes from this order, ought always to be listened to with great precaution, and ought never be adopted till after having been long and carefully examined, not only with the most scrupulous, but with the most suspicious attention." Thus Smith's chief worry seems to be when business is given special protections or privileges from government; by contrast, in the absence of such special political favours, he believed that business activities were generally beneficial to the whole society: It is the great multiplication of the production of all the different arts, in consequence of the division of labour, which occasions, in a well-governed society, that universal opulence which extends itself to the lowest ranks of the people. Every workman has a great quantity of his own work to dispose of beyond what he himself has occasion for; and every other workman being exactly in the same situation, he is enabled to exchange a great quantity of his own goods for a great quantity, or, what comes to the same thing, for the price of a great quantity of theirs. He supplies them abundantly with what they have occasion for, and they accommodate him as amply with what he has occasion for, and a general plenty diffuses itself through all the different ranks of society. (The Wealth of Nations, I.i.10) The neoclassical interest in Smith's statement about "an invisible hand" originates in the possibility of seeing it as a precursor of neoclassical economics and its concept of general equilibrium; Samuelson's "Economics" refers six times to Smith's "invisible hand". To emphasise this connection, Samuelson quotes Smith's "invisible hand" statement substituting "general interest" for "public interest". Samuelson concludes: "Smith was unable to prove the essence of his invisible-hand doctrine. Indeed, until the 1940s, no one knew how to prove, even to state properly, the kernel of truth in this proposition about perfectly competitive market." Very differently, classical economists see in Smith's first sentences his programme to promote "The Wealth of Nations". Using the physiocratical concept of the economy as a circular process, to secure growth the inputs of Period 2 must exceed the inputs of Period 1. Therefore, those outputs of Period 1 which are not used or usable as inputs of Period 2 are regarded as unproductive labour, as they do not contribute to growth. This is what Smith had heard in France from, among others, François Quesnay, whose ideas Smith was so impressed by that he might have dedicated The Wealth of Nations to him had he not died beforehand. To this French insight that unproductive labour should be reduced to use labour more productively, Smith added his own proposal, that productive labour should be made even more productive by deepening the division of labour. Smith argued that deepening the division of labour under competition leads to greater productivity, which leads to lower prices and thus an increasing standard of living—"general plenty" and "universal opulence"—for all. Extended markets and increased production lead to the continuous reorganisation of production and the invention of new ways of producing, which in turn lead to further increased production, lower prices, and improved standards of living. Smith's central message is, therefore, that under dynamic competition, a growth machine secures "The Wealth of Nations". Smith's argument predicted Britain's evolution as the workshop of the world, underselling and outproducing all its competitors. The opening sentences of the "Wealth of Nations" summarise this policy: The annual labour of every nation is the fund which originally supplies it with all the necessaries and conveniences of life which it annually consumes ... . [T]his produce ... bears a greater or smaller proportion to the number of those who are to consume it ... .[B]ut this proportion must in every nation be regulated by two different circumstances; first, by the skill, dexterity, and judgment with which its labour is generally applied; and, secondly, by the proportion between the number of those who are employed in useful labour, and that of those who are not so employed [emphasis added]. However, Smith added that the "abundance or scantiness of this supply too seems to depend more upon the former of those two circumstances than upon the latter." Other works Shortly before his death, Smith had nearly all his manuscripts destroyed. In his last years, he seemed to have been planning two major treatises, one on the theory and history of law and one on the sciences and arts. The posthumously published Essays on Philosophical Subjects, a history of astronomy down to Smith's own era, plus some thoughts on ancient physics and metaphysics, probably contain parts of what would have been the latter treatise. Lectures on Jurisprudence were notes taken from Smith's early lectures, plus an early draft of The Wealth of Nations, published as part of the 1976 Glasgow Edition of the works and correspondence of Smith. Other works, including some published posthumously, include Lectures on Justice, Police, Revenue, and Arms (1763) (first published in 1896); and Essays on Philosophical Subjects (1795). Legacy In economics and moral philosophy The Wealth of Nations was a precursor to the modern academic discipline of economics. In this and other works, Smith expounded how rational self-interest and competition can lead to economic prosperity. Smith was controversial in his own day and his general approach and writing style were often satirised by Tory writers in the moralising tradition of Hogarth and Swift, as a discussion at the University of Winchester suggests. In 2005, The Wealth of Nations was named among the 100 Best Scottish Books of all time. In light of the arguments put forward by Smith and other economic theorists in Britain, academic belief in mercantilism began to decline in Britain in the late 18th century. During the Industrial Revolution, Britain embraced free trade and Smith's laissez-faire economics, and via the British Empire, used its power to spread a broadly liberal economic model around the world, characterised by open markets, and relatively barrier-free domestic and international trade. George Stigler attributes to Smith "the most important substantive proposition in all of economics". It is that, under competition, owners of resources (for example labour, land, and capital) will use them most profitably, resulting in an equal rate of return in equilibrium for all uses, adjusted for apparent differences arising from such factors as training, trust, hardship, and unemployment. Paul Samuelson finds in Smith's pluralist use of supply and demand as applied to wages, rents, and profit a valid and valuable anticipation of the general equilibrium modelling of Walras a century later. Smith's allowance for wage increases in the short and intermediate term from capital accumulation and invention contrasted with Malthus, Ricardo, and Karl Marx in their propounding a rigid subsistence–wage theory of labour supply. Joseph Schumpeter criticised Smith for a lack of technical rigour, yet he argued that this enabled Smith's writings to appeal to wider audiences: "His very limitation made for success. Had he been more brilliant, he would not have been taken so seriously. Had he dug more deeply, had he unearthed more recondite truth, had he used more difficult and ingenious methods, he would not have been understood. But he had no such ambitions; in fact he disliked whatever went beyond plain common sense. He never moved above the heads of even the dullest readers. He led them on gently, encouraging them by trivialities and homely observations, making them feel comfortable all along." Classical economists presented competing theories to those of Smith, termed the "labour theory of value". Later Marxian economics descending from classical economics also use Smith's labour theories, in part. The first volume of Karl Marx's major work, Das Kapital, was published in German in 1867. In it, Marx focused on the labour theory of value and what he considered to be the exploitation of labour by capital. The labour theory of value held that the value of a thing was determined by the labour that went into its production. This contrasts with the modern contention of neoclassical economics, that the value of a thing is determined by what one is willing to give up to obtain the thing. The body of theory later termed "neoclassical economics" or "marginalism" formed from about 1870 to 1910. The term "economics" was popularised by such neoclassical economists as Alfred Marshall as a concise synonym for "economic science" and a substitute for the earlier, broader term "political economy" used by Smith. This corresponded to the influence on the subject of mathematical methods used in the natural sciences. Neoclassical economics systematised supply and demand as joint determinants of price and quantity in market equilibrium, affecting both the allocation of output and the distribution of income. It dispensed with the labour theory of value of which Smith was most famously identified with in classical economics, in favour of a marginal utility theory of value on the demand side and a more general theory of costs on the supply side. The bicentennial anniversary of the publication of The Wealth of Nations was celebrated in 1976, resulting in increased interest for The Theory of Moral Sentiments and his other works throughout academia. After 1976, Smith was more likely to be represented as the author of both The Wealth of Nations and The Theory of Moral Sentiments, and thereby as the founder of a moral philosophy and the science of economics. His homo economicus or "economic man" was also more often represented as a moral person. Additionally, economists David Levy and Sandra Peart in "The Secret History of the Dismal Science" point to his opposition to hierarchy and beliefs in inequality, including racial inequality, and provide additional support for those who point to Smith's opposition to slavery, colonialism, and empire. Emphasised also are Smith's statements of the need for high wages for the poor, and the efforts to keep wages low. In The "Vanity of the Philosopher: From Equality to Hierarchy in Postclassical Economics", Peart and Levy also cite Smith's view that a common street porter was not intellectually inferior to a philosopher, and point to the need for greater appreciation of the public views in discussions of science and other subjects now considered to be technical. They also cite Smith's opposition to the often expressed view that science is superior to common sense. Smith also explained the relationship between growth of private property and civil government: Men may live together in society with some tolerable degree of security, though there is no civil magistrate to protect them from the injustice of those passions. But avarice and ambition in the rich, in the poor the hatred of labour and the love of present ease and enjoyment, are the passions which prompt to invade property, passions much more steady in their operation, and much more universal in their influence. Wherever there is great property there is great inequality. For one very rich man there must be at least five hundred poor, and the affluence of the few supposes the indigence of the many. The affluence of the rich excites the indignation of the poor, who are often both driven by want, and prompted by envy, to invade his possessions. It is only under the shelter of the civil magistrate that the owner of that valuable property, which is acquired by the labour of many years, or perhaps of many successive generations, can sleep a single night in security. He is at all times surrounded by unknown enemies, whom, though he never provoked, he can never appease, and from whose injustice he can be protected only by the powerful arm of the civil magistrate continually held up to chastise it. The acquisition of valuable and extensive property, therefore, necessarily requires the establishment of civil government. Where there is no property, or at least none that exceeds the value of two or three days' labour, civil government is not so necessary. Civil government supposes a certain subordination. But as the necessity of civil government gradually grows up with the acquisition of valuable property, so the principal causes which naturally introduce subordination gradually grow up with the growth of that valuable property. (...) Men of inferior wealth combine to defend those of superior wealth in the possession of their property, in order that men of superior wealth may combine to defend them in the possession of theirs. All the inferior shepherds and herdsmen feel that the security of their own herds and flocks depends upon the security of those of the great shepherd or herdsman; that the maintenance of their lesser authority depends upon that of his greater authority, and that upon their subordination to him depends his power of keeping their inferiors in subordination to them. They constitute a sort of little nobility, who feel themselves interested to defend the property and to support the authority of their own little sovereign in order that he may be able to defend their property and to support their authority. Civil government, so far as it is instituted for the security of property, is in reality instituted for the defence of the rich against the poor, or of those who have some property against those who have none at all. In British imperial debates Smith opposed empire. He challenged ideas that colonies were key to British prosperity and power. He rejected that other cultures, such as China and India, were culturally and developmentally inferior to Europe. While he favoured "commercial society", he did not support radical social change and the imposition of commercial society on other societies. He proposed that colonies be given independence or that full political rights be extended to colonial subjects. Smith's chapter on colonies, in turn, would help shape British imperial debates from the mid-19th century onward. The Wealth of Nations would become an ambiguous text regarding the imperial question. In his chapter on colonies, Smith pondered how to solve the crisis developing across the Atlantic among the empire's 13 American colonies. He offered two different proposals for easing tensions. The first proposal called for giving the colonies their independence, and by thus parting on a friendly basis, Britain would be able to develop and maintain a free-trade relationship with them, and possibly even an informal military alliance. Smith's second proposal called for a theoretical imperial federation that would bring the colonies and the metropole closer together through an imperial parliamentary system and imperial free trade. Smith's most prominent disciple in 19th-century Britain, peace advocate Richard Cobden, preferred the first proposal. Cobden would lead the Anti-Corn Law League in overturning the Corn Laws in 1846, shifting Britain to a policy of free trade and empire "on the cheap" for decades to come. This hands-off approach toward the British Empire would become known as Cobdenism or the Manchester School. By the turn of the century, however, advocates of Smith's second proposal such as Joseph Shield Nicholson would become ever more vocal in opposing Cobdenism, calling instead for imperial federation. As Marc-William Palen notes: "On the one hand, Adam Smith's late nineteenth and early twentieth-century Cobdenite adherents used his theories to argue for gradual imperial devolution and empire 'on the cheap'. On the other, various proponents of imperial federation throughout the British World sought to use Smith's theories to overturn the predominant Cobdenite hands-off imperial approach and instead, with a firm grip, bring the empire closer than ever before." Smith's ideas thus played an important part in subsequent debates over the British Empire. Portraits, monuments, and banknotes Smith has been commemorated in the UK on banknotes printed by two different banks; his portrait has appeared since 1981 on the £50 notes issued by the Clydesdale Bank in Scotland, and in March 2007 Smith's image also appeared on the new series of £20 notes issued by the Bank of England, making him the first Scotsman to feature on an English banknote. A large-scale memorial of Smith by Alexander Stoddart was unveiled on 4 July 2008 in Edinburgh. It is a -tall bronze sculpture and it stands above the Royal Mile outside St Giles' Cathedral in Parliament Square, near the Mercat cross. 20th-century sculptor Jim Sanborn (best known for the Kryptos sculpture at the United States Central Intelligence Agency) has created multiple pieces which feature Smith's work. At Central Connecticut State University is Circulating Capital, a tall cylinder which features an extract from The Wealth of Nations on the lower half, and on the upper half, some of the same text, but represented in binary code. At the University of North Carolina at Charlotte, outside the Belk College of Business Administration, is Adam Smith's Spinning Top. Another Smith sculpture is at Cleveland State University. He also appears as the narrator in the 2013 play The Low Road, centred on a proponent on laissez-faire economics in the late 18th century, but dealing obliquely with the financial crisis of 2007–2008 and the recession which followed; in the premiere production, he was portrayed by Bill Paterson. A bust of Smith is in the Hall of Heroes of the National Wallace Monument in Stirling. Residence Adam Smith resided at Panmure House from 1778 to 1790. This residence has now been purchased by the Edinburgh Business School at Heriot-Watt University and fundraising has begun to restore it. Part of the Northern end of the original building appears to have been demolished in the 19th century to make way for an iron foundry. As a symbol of free-market economics Smith has been celebrated by advocates of free-market policies as the founder of free-market economics, a view reflected in the naming of bodies such as the Adam Smith Institute in London, multiple entities known as the "Adam Smith Society", including an historical Italian organisation, and the U.S.-based Adam Smith Society, and the Australian Adam Smith Club, and in terms such as the Adam Smith necktie. Former US Federal Reserve Chairman Alan Greenspan argues that, while Smith did not coin the term laissez-faire, "it was left to Adam Smith to identify the more-general set of principles that brought conceptual clarity to the seeming chaos of market transactions." Greenspan continues that The Wealth of Nations was "one of the great achievements in human intellectual history." P.J. O'Rourke describes Smith as the "founder of free market economics." Nobel laureate economist Milton Friedman believed in 1976, 200 years after the publishing of The Wealth of Nations, that the work of Adam Smith was, "...far more immediately relevant today than he was at the Centennial of The Wealth of Nations in 1876." Other writers have argued that Smith's support for laissez-faire (which in French means leave alone) has been overstated. Herbert Stein wrote that the people who "wear an Adam Smith necktie" do it to "make a statement of their devotion to the idea of free markets and limited government", and that this misrepresents Smith's ideas. Stein writes that Smith "was not pure or doctrinaire about this idea. He viewed government intervention in the market with great skepticism...yet he was prepared to accept or propose qualifications to that policy in the specific cases where he judged that their net effect would be beneficial and would not undermine the basically free character of the system. He did not wear the Adam Smith necktie." In Stein's reading, The Wealth of Nations could justify the Food and Drug Administration, the Consumer Product Safety Commission, mandatory employer health benefits, environmentalism, and "discriminatory taxation to deter improper or luxurious behavior". Similarly, Vivienne Brown stated in The Economic Journal that in the 20th-century United States, Reaganomics supporters, The Wall Street Journal, and other similar sources have spread among the general public a partial and misleading vision of Smith, portraying him as an "extreme dogmatic defender of laissez-faire capitalism and supply-side economics". In fact, The Wealth of Nations includes the following statement on the payment of taxes: The subjects of every state ought to contribute towards the support of the government, as nearly as possible, in proportion to their respective abilities; that is, in proportion to the revenue which they respectively enjoy under the protection of the state. Some commentators have argued that Smith's works show support for a progressive, not flat, income tax and that he specifically named taxes that he thought should be required by the state, among them luxury-goods taxes and tax on rent. Yet Smith argued for the "impossibility of taxing the people, in proportion to their economic revenue, by any capitation". Smith argued that taxes should principally go toward protecting "justice" and "certain publick institutions" that were necessary for the benefit of all of society, but that could not be provided by private enterprise. Additionally, Smith outlined the proper expenses of the government in The Wealth of Nations, Book V, Ch. I. Included in his requirements of a government is to enforce contracts and provide justice system, grant patents and copy rights, provide public goods such as infrastructure, provide national defence, and regulate banking. The role of the government was to provide goods "of such a nature that the profit could never repay the expense to any individual" such as roads, bridges, canals, and harbours. He also encouraged invention and new ideas through his patent enforcement and support of infant industry monopolies. He supported partial public subsidies for elementary education, and he believed that competition among religious institutions would provide general benefit to the society. In such cases, however, Smith argued for local rather than centralised control: "Even those publick works which are of such a nature that they cannot afford any revenue for maintaining themselves ... are always better maintained by a local or provincial revenue, under the management of a local and provincial administration, than by the general revenue of the state" (Wealth of Nations, V.i.d.18). Finally, he outlined how the government should support the dignity of the monarch or chief magistrate, such that they are equal or above the public in fashion. He even states that monarchs should be provided for in a greater fashion than magistrates of a republic because "we naturally expect more splendor in the court of a king than in the mansion-house of a doge". In addition, he allowed that in some specific circumstances, retaliatory tariffs may be beneficial: The recovery of a great foreign market will generally more than compensate the transitory inconvenience of paying dearer during a short time for some sorts of goods. However, he added that in general, a retaliatory tariff "seems a bad method of compensating the injury done to certain classes of our people, to do another injury ourselves, not only to those classes, but to almost all the other classes of them". Economic historians such as Jacob Viner regard Smith as a strong advocate of free markets and limited government (what Smith called "natural liberty"), but not as a dogmatic supporter of laissez-faire. Economist Daniel Klein believes using the term "free-market economics" or "free-market economist" to identify the ideas of Smith is too general and slightly misleading. Klein offers six characteristics central to the identity of Smith's economic thought and argues that a new name is needed to give a more accurate depiction of the "Smithian" identity. Economist David Ricardo set straight some of the misunderstandings about Smith's thoughts on free market. Many continue to fall victim to the thinking that Smith was a free-market economist without exception, though he was not. Ricardo pointed out that Smith was in support of helping infant industries. Smith believed that the government should subsidise newly formed industry, but he did fear that when the infant industry grew into adulthood, it would be unwilling to surrender the government help. Smith also supported tariffs on imported goods to counteract an internal tax on the same good. Smith also fell to pressure in supporting some tariffs in support for national defence. Some have also claimed, Emma Rothschild among them, that Smith would have supported a minimum wage, although no direct textual evidence supports the claim. Indeed, Smith wrote: The price of labour, it must be observed, cannot be ascertained very accurately anywhere, different prices being often paid at the same place and for the same sort of labour, not only according to the different abilities of the workmen, but according to the easiness or hardness of the masters. Where wages are not regulated by law, all that we can pretend to determine is what are the most usual; and experience seems to show that law can never regulate them properly, though it has often pretended to do so. (The Wealth of Nations, Book 1, Chapter 8) However, Smith also noted, to the contrary, the existence of an imbalanced, inequality of bargaining power: A landlord, a farmer, a master manufacturer, a merchant, though they did not employ a single workman, could generally live a year or two upon the stocks which they have already acquired. Many workmen could not subsist a week, few could subsist a month, and scarce any a year without employment. In the long run, the workman may be as necessary to his master as his master is to him, but the necessity is not so immediate. See also Critique of political economy Organizational capital List of abolitionist forerunners List of Fellows of the Royal Society of Arts People on Scottish banknotes Adam Smith's America References Informational notes Citations Bibliography Helbroner, Robert L. The Essential Adam Smith. Otteson, James R. (2002). Adam Smith's Marketplace of Life. Cambridge: Cambridge University Press. Further reading Hardwick, D. and Marsh, L. (2014). Propriety and Prosperity: New Studies on the Philosophy of Adam Smith. Palgrave Macmillan Phillipson, Nicholas (2010). Adam Smith: An Enlightened Life, Yale University Press, , 352 pages; scholarly biography Pichet, Éric (2004). Adam Smith, je connais !, French biography. Vianello, F. (1999). "Social accounting in Adam Smith", in: Mongiovi, G. and Petri F. (eds.), Value, Distribution and capital. Essays in honour of Pierangelo Garegnani, London: Routledge, . Wolloch, N. (2015). "Symposium on Jack Russell Weinstein's Adam Smith's Pluralism: Rationality, Education and the Moral Sentiments". Cosmos + Taxis "Adam Smith and Empire: A New Talking Empire Podcast," Imperial & Global Forum, 12 March 2014. External links References to Adam Smith in historic European newspapers at the Adam Smith Institute 1723 births 1790 deaths 18th-century Scottish writers 18th-century British philosophers Academics of the University of Glasgow Age of Enlightenment Alumni of Balliol College, Oxford Alumni of the University of Glasgow British classical liberal economists British male non-fiction writers Burials at the Canongate Kirkyard Capitalism Classical economists Critics of work and the work ethic Enlightenment philosophers Fellows of the Royal Society Fellows of the Royal Society of Edinburgh Founder Fellows of the Royal Society of Edinburgh Members of the Philosophical Society of Edinburgh Political realists People of the Scottish Enlightenment People from Kirkcaldy Philosophers of economics Philosophers of logic Rectors of the University of Glasgow Scottish business theorists Scottish economists Scottish logicians Scottish philosophers Scottish scholars and academics Social philosophers Virtue ethicists British liberal theorists

1832

https://en.wikipedia.org/wiki/Allomorph

Allomorph

In linguistics, an allomorph is a variant phonetic form of a morpheme, or, a unit of meaning that varies in sound and spelling without changing the meaning. The term allomorph describes the realization of phonological variations for a specific morpheme. The different allomorphs that a morpheme can become are governed by morphophonemic rules. These phonological rules determine what phonetic form, or specific pronunciation, a morpheme will take based on the phonological or morphological context in which they appear. In English English has several morphemes that vary in sound but not in meaning, such as past tense morphemes, plural morphemes, and negative morphemes. Past tense allomorphs For example, an English past tense morpheme is -ed, which occurs in several allomorphs depending on its phonological environment by assimilating the voicing of the previous segment or the insertion of a schwa after an alveolar stop: as or in verbs whose stem ends with the alveolar stops or , such as 'hunted' or 'banded' as in verbs whose stem ends with voiceless phonemes other than , such as 'fished' as in verbs whose stem ends with voiced phonemes other than , such as 'buzzed' The "other than" restrictions above are typical for allomorphy. If the allomorphy conditions are ordered from most restrictive (in this case, after an alveolar stop) to least restrictive, the first matching case usually has precedence. Thus, the above conditions could be rewritten as follows: as or when the stem ends with the alveolar stops or as when the stem ends with voiceless phonemes as elsewhere The allomorph does not appear after stem-final although the latter is voiceless, which is then explained by appearing in that environment, together with the fact that the environments are ordered. Likewise, the allomorph does not appear after stem-final because the earlier clause for the allomorph has priority. The allomorph does not appear after stem-final voiceless phoneme because the preceding clause for the comes first. Irregular past tense forms, such as "broke" or "was/were," can be seen as still more specific cases since they are confined to certain lexical items, such as the verb "break," which take priority over the general cases listed above. Plural allomorphs The plural morpheme for regular nouns in English is typically realized by adding an -s or -es to the end of the noun. However, the plural morpheme actually has three different allomorphs: [-s], [-z], and [-əz]. The specific pronunciation that a plural morpheme takes on is determined by the following morphological rules: Assume that the basic form of the plural morpheme, /-z/, is [-z] ("bags" /bægz/) The morpheme /-z/ becomes [-əz] by inserting an [ə] before [-z] when a noun ends in a sibilant ("buses" /bʌsəz/) Change the morpheme /-z/ to a voiceless [-s] when a noun ends in a voiceless sound ("caps" /kæps/) Negative allomorphs In English, the negative prefix in- has three allomorphs: [ɪn-], [ɪŋ-], and [ɪm-]. The phonetic form that the negative morpheme /ɪn-/ uses is determined by the following morphological rules: the negative morpheme /ɪn-/ becomes [ɪn-] when preceding an alveolar consonant ("intolerant"/ɪn'tɔlərənt/) the morpheme /ɪn-/ becomes [ɪŋ-] before a velar consonant ("incongruous" /ɪŋ'kɔŋgruəs/) the morpheme /ɪn-/ becomes [ɪm-] before a bilabial consonant ("improper" /ɪm'prɔpər/) In Sami languages The Sami languages have a trochaic pattern of alternating stressed and unstressed syllables. The vowels and consonants that are allowed in an unstressed syllable differ from those that are allowed in a stressed syllable. Consequently, every suffix and inflectional ending has two forms, and the form that is used depends on the stress pattern of the word to which it is attached. For example, Northern Sami has the causative verb suffix - in which - is selected when it would be the third syllable (and the preceding verb has two syllables), and - is selected when it would be the third and the fourth syllables (and the preceding verb has three syllables): has two syllables and so when suffixed, the result is . has three syllables and so when suffixed, the result is . The same applies to inflectional patterns in the Sami languages as well, which are divided into even stems and odd stems. Stem allomorphy Allomorphy can also exist in stems or roots, as in Classical Sanskrit: There are three allomorphs of the stem, , , and , which are conditioned by the particular case-marking suffixes. The form of the stem , found in the nominative singular and locative plural, is the etymological form of the morpheme. Pre-Indic palatalization of velars resulted in the variant form , which was initially phonologically conditioned. The conditioning can still be seen in the locative singular form, for which the is followed by the high front vowel . However, the subsequent merging of and into made the alternation unpredictable on phonetic grounds in the genitive case (both singular and plural) as well as the nominative plural and the instrumental singular. Thus, allomorphy was no longer directly relatable to phonological processes. Phonological conditioning also accounts for the form in the instrumental plural, in which the assimilates in voicing to the following . History The term was originally used to describe variations in chemical structure. It was first applied to language (in writing) in 1948, by Fatih Şat and Sibel Merve in Language XXIV. See also Null allomorph Alternation (linguistics) Allophone Consonant mutation Grassmann's law Suppletion References Linguistic morphology Morphemes Linguistics terminology

1834

https://en.wikipedia.org/wiki/Allophone

Allophone

In phonology, an allophone (; from the Greek , , 'other' and , , 'voice, sound') is one of multiple possible spoken soundsor phonesor signs used to pronounce a single phoneme in a particular language. For example, in English, the voiceless plosive (as in stop ) and the aspirated form (as in top ) are allophones for the phoneme , while these two are considered to be different phonemes in some languages such as Thai. Similarly, in Spanish, (as in dolor ) and (as in nada ) are allophones for the phoneme , while these two are considered to be different phonemes in English (as in the difference between dare and there). The specific allophone selected in a given situation is often predictable from the phonetic context, with such allophones being called positional variants, but some allophones occur in free variation. Replacing a sound by another allophone of the same phoneme usually does not change the meaning of a word, but the result may sound non-native or even unintelligible. Native speakers of a given language perceive one phoneme in the language as a single distinctive sound and are "both unaware of and even shocked by" the allophone variations that are used to pronounce single phonemes. History of concept The term "allophone" was coined by Benjamin Lee Whorf circa 1929. In doing so, he is thought to have placed a cornerstone in consolidating early phoneme theory. The term was popularized by George L. Trager and Bernard Bloch in a 1941 paper on English phonology and went on to become part of standard usage within the American structuralist tradition. Complementary and free-variant allophones and assimilation Whenever a user's speech is vocalized for a given phoneme, it is slightly different from other utterances, even for the same speaker. That has led to some debate over how real and how universal phonemes really are (see phoneme for details). Only some of the variation is significant, by being detectable or perceivable, to speakers. There are two types of allophones, based on whether a phoneme must be pronounced using a specific allophone in a specific situation or whether the speaker has the unconscious freedom to choose the allophone that is used. If a specific allophone from a set of allophones that correspond to a phoneme must be selected in a given context, and using a different allophone for a phoneme would cause confusion or make the speaker sound non-native, the allophones are said to be complementary. The allophones then complement each other, and one of them is not used in a situation in which the usage of another is standard. For complementary allophones, each allophone is used in a specific phonetic context and may be involved in a phonological process. In other cases, the speaker can freely select from free-variant allophones on personal habit or preference, but free-variant allophones are still selected in the specific context, not the other way around. Another example of an allophone is assimilation, in which a phoneme is to sound more like another phoneme. One example of assimilation is consonant voicing and devoicing, in which voiceless consonants are voiced before and after voiced consonants, and voiced consonants are devoiced before and after voiceless consonants. Allotone An allotone is a tonic allophone, such as the neutral tone in Standard Mandarin. Examples English There are many allophonic processes in English: lack of plosion, nasal plosion, partial devoicing of sonorants, complete devoicing of sonorants, partial devoicing of obstruents, lengthening and shortening vowels, and retraction. Aspiration: In English, a voiceless plosive is aspirated (has a strong explosion of breath) if it is at the beginning of the first or a stressed syllable in a word. For example, as in pin and as in spin are allophones for the phoneme because they cannot distinguish words (in fact, they occur in complementary distribution). English-speakers treat them as the same sound, but they are different: the first is aspirated and the second is unaspirated (plain). Many languages treat the two phones differently. Nasal plosion: In English, a plosive () has nasal plosion if it is followed by a nasal, whether within a word or across a word boundary. Partial devoicing of sonorants: In English, sonorants () are partially devoiced after a voiceless sound in the same syllable. Complete devoicing of sonorants: In English, a sonorant is completely devoiced after an aspirated plosive (). Partial devoicing of obstruents: In English, a voiced obstruent is partially devoiced next to a pause or next to a voiceless sound within a word or across a word boundary. Retraction: In English, are retracted before . Because the choice among allophones is seldom under conscious control, few people realize their existence. English-speakers may be unaware of differences between a number of (dialect-dependent) allophones of the phoneme : post-aspirated as in top, unaspirated as in stop. glottalized (or rather substituted by the glottal stop) as in button, but many speakers preserve at least an unreleased coronal stop . In addition, the following allophones of /t/ are found in (at least) some dialects of American(ised) English; flapped as in American English water, nasal(ized) flapped as in American English winter. unreleased as in American English cat, but other dialects preserve the released , or substitute the glottal stop . However, speakers may become aware of the differences iffor examplethey contrast the pronunciations of the following words: Night rate: unreleased (without a word space between and ) Nitrate: aspirated or retracted A flame that is held in front of the lips while those words are spoken flickers more for the aspirated nitrate than for the unaspirated night rate. The difference can also be felt by holding the hand in front of the lips. For a Mandarin-speaker, for whom and are separate phonemes, the English distinction is much more obvious than for an English-speaker, who has learned since childhood to ignore the distinction. One may notice the (dialect-dependent) allophones of English such as the (palatal) alveolar "light" of leaf as opposed to the velar alveolar "dark" in feel found in the U.S. and Southern England. The difference is much more obvious to a Turkish-speaker, for whom and are separate phonemes, than to an English speaker, for whom they are allophones of a single phoneme. These descriptions are more sequentially broken down in the next section. Rules for English consonant allophones Peter Ladefoged, a renowned phonetician, clearly explains the consonant allophones of English in a precise list of statements to illustrate the language behavior. Some of these rules apply to all the consonants of English; the first item on the list deals with consonant length, items 2 through 18 apply to only selected groups of consonants, and the last item deals with the quality of a consonant. These descriptive rules are as follows: Consonants are longer when they come at the end of a phrase. This can be easily tested by recording a speaker saying a sound like “bib”, then comparing the forward and backward playback of the recording. One will find that the backward playback does not sound like the forward playback because the production of what is expected to be the same sound is not identical. Voiceless stops are aspirated when they come at the beginning of a syllable, such as in words like "pip, test, kick" . We can compare this with voiceless stops that are not syllable initial like "stop" [stɑp]. The voiceless stop follows the (fricative) here. Voiced obstruents, which include stops and fricatives, such as , that come at the end of an utterance like in "improve" or before a voiceless sound like in "add two") are only briefly voiced during the articulation. Voiced stops and affricates in fact occur as voiceless at the beginning of a syllable unless immediately preceded by a voiced sound, in which the voiced sound carries over. Approximants (in English, these include ) are partially voiceless when they occur after syllable-initial like in "play, twin, cue" . Voiceless stops are not aspirated when following after a syllable initial fricative, such as in the words "spew, stew, skew." Voiceless stops and affricates are longer than their voiced counterparts when situated at the end of a syllable. Try comparing "cap" to "cab" or "back" to "bag". When a stop comes before another stop, the explosion of air only follows after the second stop, illustrated in words like "apt" and "rubbed" . Many English accents produce a glottal stop in syllables that end with voiceless stops. Some examples include pronunciations of "tip, pit, kick" . Some accents of English use a glottal stop in place of a when it comes before an alveolar nasal in the same word (as opposed to in the next word), such as in the word "beaten" . Nasals become syllabic, or their own syllable, only when immediately following an obstruent (as opposed to just any consonant), such as in the words "leaden, chasm" . Take in comparison "kiln, film"; in most accents of English, the nasals are not syllabic. The lateral , however, is syllabic at the end of the word when immediately following any consonant, like in "paddle, whistle" . When considering as liquids, is included in this rule as well as present in the words "sabre, razor, hammer, tailor" . Alveolar stops become voiced taps when they occur between two vowels, as long as the second vowel is unstressed. Take for instance mainly American English pronunciations like "fatty, data, daddy, many" . When an alveolar nasal is followed by a stop, the is lost and a nasal tap occurs, causing "winter" to sound just like "winner" or "panting" to sound just like "panning". In this case, both alveolar stops and alveolar nasal plus stop sequences become voiced taps after two vowels when the second vowel is unstressed. This can vary among speakers, where the rule does not apply to certain words or when speaking at a slower pace. All alveolar consonants assimilate to dentals when occurring before a dental. Take the words "eighth, tenth, wealth". This also applies across word boundaries, for example "at this" . Alveolar stops are reduced or omitted when between two consonants. Some examples include "most people" (can be written either as or with the IPA, where the is inaudible, and "sand paper, grand master", where the is inaudible. A consonant is shortened when it is before an identical consonant, such as in "big game" or "top post". A homorganic voiceless stop may be inserted after a nasal before a voiceless fricative followed by an unstressed vowel in the same word. For example, a bilabial voiceless plosive can be detected in the word "something" even though it is orthographically not indicated. This is known as epenthesis. However, the following vowel must be unstressed. Velar stops become more front when the following vowel sound in the same syllable becomes more front. Compare for instance "cap" vs. "key" and "gap" vs. "geese" . The lateral is velarized at the end of a word when it comes after a vowel as well as before a consonant. Compare for example "life" vs. "file" or "feeling" vs. "feel" . Other languages There are many examples for allophones in languages other than English. Typically, languages with a small phoneme inventory allow for quite a lot of allophonic variation: examples are Hawaiian and Pirahã. Here are some examples (the links of language names go to the specific article or subsection on the phenomenon): Consonant allophones Final devoicing, particularly final-obstruent devoicing: Arapaho, English, Nahuatl, Catalan and many others Voicing of initial consonant Anticipatory assimilation Aspiration changes: Algonquin Frication between vowels: Dahalo Lenition: Manx, Corsican Voicing of clicks: Dahalo Allophones for : Arapaho, Xavante Allophones for : Xavante Allophones for : Bengali Allophones for : Xavante Allophones for : Manam Allophones for : Garhwali and as allophones: a number of Arabic dialects and as allophones: Some dialects of Hawaiian, and some of Mandarin (e.g. Southwestern and Lower Yangtze) Allophones for : Finnish, Spanish and many more. wide range of variation in Japanese (as archiphoneme /N/) Allophones for : Xavante Allophones for : Bengali Allophones for : Bengali, Taos and as allophones: Hawaiian Allophones for : and : Hindustani, Hawaiian fricative before unrounded vowels: O'odham Allophones for : Bengali Vowel allophones and are allophones of and in closed final syllables in Malay and Portuguese, while and are allophones of and in Indonesian. as allophones for short , and as allophones for short in various Arabic dialects (long , , , are separate phonemes in most Arabic dialects). Polish Russian Allophones for , and : Nuxálk Vowel/consonant allophones Vowels become glides in diphthongs: Manam Representing a phoneme with an allophone Since phonemes are abstractions of speech sounds, not the sounds themselves, they have no direct phonetic transcription. When they are realized without much allophonic variation, a simple broad transcription is used. However, when there are complementary allophones of a phoneme, the allophony becomes significant and things then become more complicated. Often, if only one of the allophones is simple to transcribe, in the sense of not requiring diacritics, that representation is chosen for the phoneme. However, there may be several such allophones, or the linguist may prefer greater precision than that allows. In such cases, a common convention is to use the "elsewhere condition" to decide the allophone that stands for the phoneme. The "elsewhere" allophone is the one that remains once the conditions for the others are described by phonological rules. For example, English has both oral and nasal allophones of its vowels. The pattern is that vowels are nasal only before a nasal consonant in the same syllable; elsewhere, they are oral. Therefore, by the "elsewhere" convention, the oral allophones are considered basic, and nasal vowels in English are considered to be allophones of oral phonemes. In other cases, an allophone may be chosen to represent its phoneme because it is more common in the languages of the world than the other allophones, because it reflects the historical origin of the phoneme, or because it gives a more balanced look to a chart of the phonemic inventory. An alternative, which is commonly used for archiphonemes, is to use a capital letter, such as /N/ for [m], [n], [ŋ]. In rare cases, a linguist may represent phonemes with abstract symbols, such as dingbats, to avoid privileging any particular allophone. See also Allo- Allophonic rule Allomorph Alternation (linguistics) Diaphoneme List of phonetics topics References External links Phonemes and allophones Phonetics Phonology

1837

https://en.wikipedia.org/wiki/Allegory

Allegory

As a literary device or artistic form, an allegory is a narrative or visual representation in which a character, place, or event can be interpreted to represent a hidden meaning with moral or political significance. Authors have used allegory throughout history in all forms of art to illustrate or convey complex ideas and concepts in ways that are comprehensible or striking to its viewers, readers, or listeners. Writers and speakers typically use allegories to convey (semi-) hidden or complex meanings through symbolic figures, actions, imagery, or events, which together create the moral, spiritual, or political meaning the author wishes to convey. Many allegories use personification of abstract concepts. Etymology First attested in English in 1382, the word allegory comes from Latin allegoria, the latinisation of the Greek ἀλληγορία (allegoría), "veiled language, figurative", which in turn comes from both ἄλλος (allos), "another, different" and ἀγορεύω (agoreuo), "to harangue, to speak in the assembly", which originates from ἀγορά (agora), "assembly". Types Northrop Frye discussed what he termed a "continuum of allegory", a spectrum that ranges from what he termed the "naive allegory" of the likes of The Faerie Queene, to the more private allegories of modern paradox literature. In this perspective, the characters in a "naive" allegory are not fully three-dimensional, for each aspect of their individual personalities and of the events that befall them embodies some moral quality or other abstraction; the author has selected the allegory first, and the details merely flesh it out. Classical allegory The origins of allegory can be traced at least back to Homer in his "quasi-allegorical" use of personifications of, e.g., Terror (Deimos) and Fear (Phobos) at Il. 115 f. The title of "first allegorist", however, is usually awarded to whoever was the earliest to put forth allegorical interpretations of Homer. This approach leads to two possible answers: Theagenes of Rhegium (whom Porphyry calls the "first allegorist," Porph. Quaest. Hom. 1.240.14–241.12 Schrad.) or Pherecydes of Syros, both of whom are presumed to be active in the 6th century B.C.E., though Pherecydes is earlier and as he is often presumed to be the first writer of prose. The debate is complex, since it demands we observe the distinction between two often conflated uses of the Greek verb "allēgoreīn," which can mean both "to speak allegorically" and "to interpret allegorically." In the case of "interpreting allegorically," Theagenes appears to be our earliest example. Presumably in response to proto-philosophical moral critiques of Homer (e.g., Xenophanes fr. 11 Diels-Kranz ), Theagenes proposed symbolic interpretations whereby the Gods of the Iliad actually stood for physical elements. So, Hephestus represents Fire, for instance (for which see fr. A2 in Diels-Kranz ). Some scholars, however, argue that Pherecydes cosmogonic writings anticipated Theagenes allegorical work, illustrated especially by his early placement of Time (Chronos) in his genealogy of the gods, which is thought to be a reinterpretation of the titan Kronos, from more traditional genealogies. In classical literature two of the best-known allegories are the Cave in Plato's The Republic (Book VII) and the story of the stomach and its members in the speech of Menenius Agrippa (Livy ii. 32). Among the best-known examples of allegory, Plato's Allegory of the Cave, forms a part of his larger work The Republic. In this allegory, Plato describes a group of people who have lived chained in a cave all of their lives, facing a blank wall (514a–b). The people watch shadows projected on the wall by things passing in front of a fire behind them and begin to ascribe forms to these shadows, using language to identify their world (514c–515a). According to the allegory, the shadows are as close as the prisoners get to viewing reality, until one of them finds his way into the outside world where he sees the actual objects that produced the shadows. He tries to tell the people in the cave of his discovery, but they do not believe him and vehemently resist his efforts to free them so they can see for themselves (516e–518a). This allegory is, on a basic level, about a philosopher who upon finding greater knowledge outside the cave of human understanding, seeks to share it as is his duty, and the foolishness of those who would ignore him because they think themselves educated enough. In Late Antiquity Martianus Capella organized all the information a fifth-century upper-class male needed to know into an allegory of the wedding of Mercury and Philologia, with the seven liberal arts the young man needed to know as guests. Also, the Neoplatonic philosophy developed a type of allegorical reading of Homer and Plato. Biblical allegory Other early allegories are found in the Hebrew Bible, such as the extended metaphor in Psalm 80 of the Vine and its impressive spread and growth, representing Israel's conquest and peopling of the Promised Land. Also allegorical is Ezekiel 16 and 17, wherein the capture of that same vine by the mighty Eagle represents Israel's exile to Babylon. Allegorical interpretation of the Bible was a common early Christian practice and continues. For example, the recently re-discovered Fourth Commentary on the Gospels by Fortunatianus of Aquileia has a comment by its English translator: "The principal characteristic of Fortunatianus' exegesis is a figurative approach, relying on a set of concepts associated with key terms in order to create an allegorical decoding of the text." Medieval allegory Allegory has an ability to freeze the temporality of a story, while infusing it with a spiritual context. Mediaeval thinking accepted allegory as having a reality underlying any rhetorical or fictional uses. The allegory was as true as the facts of surface appearances. Thus, the Papal Bull Unam Sanctam (1302) presents themes of the unity of Christendom with the pope as its head in which the allegorical details of the metaphors are adduced as facts on which is based a demonstration with the vocabulary of logic: "Therefore of this one and only Church there is one body and one head—not two heads as if it were a monster... If, then, the Greeks or others say that they were not committed to the care of Peter and his successors, they necessarily confess that they are not of the sheep of Christ." This text also demonstrates the frequent use of allegory in religious texts during the Mediaeval Period, following the tradition and example of the Bible. In the late 15th century, the enigmatic Hypnerotomachia, with its elaborate woodcut illustrations, shows the influence of themed pageants and masques on contemporary allegorical representation, as humanist dialectic conveyed them. The denial of medieval allegory as found in the 12th-century works of Hugh of St Victor and Edward Topsell's Historie of Foure-footed Beastes (London, 1607, 1653) and its replacement in the study of nature with methods of categorisation and mathematics by such figures as naturalist John Ray and the astronomer Galileo is thought to mark the beginnings of early modern science. Modern allegory Since meaningful stories are nearly always applicable to larger issues, allegories may be read into many stories which the author may not have recognized. This is allegoresis, or the act of reading a story as an allegory. Examples of allegory in popular culture that may or may not have been intended include the works of Bertolt Brecht, and even some works of science fiction and fantasy, such as The Chronicles of Narnia by C. S. Lewis. The story of the apple falling onto Isaac Newton's head is another famous allegory. It simplified the idea of gravity by depicting a simple way it was supposedly discovered. It also made the scientific revelation well known by condensing the theory into a short tale. Poetry and fiction While allegoresis may make discovery of allegory in any work, not every resonant work of modern fiction is allegorical, and some are clearly not intended to be viewed this way. According to Henry Littlefield's 1964 article, L. Frank Baum's The Wonderful Wizard of Oz, may be readily understood as a plot-driven fantasy narrative in an extended fable with talking animals and broadly sketched characters, intended to discuss the politics of the time. Yet, George MacDonald emphasized in 1893 that "A fairy tale is not an allegory." J. R. R. Tolkien's The Lord of the Rings is another example of a well-known work mistakenly perceived as allegorical, as the author himself once stated, "...I cordially dislike allegory in all its manifestations, and always have done so since I grew old and wary enough to detect its presence. I much prefer history – true or feigned – with its varied applicability to the thought and experience of readers. I think that many confuse applicability with allegory, but one resides in the freedom of the reader, and the other in the purposed domination of the author." Tolkien specifically resented the suggestion that the book's One Ring, which gives overwhelming power to those possessing it, was intended as an allegory of nuclear weapons. He noted that, had that been his intention, the book would not have ended with the Ring being destroyed but rather with an arms race in which various powers would try to obtain such a Ring for themselves. Then Tolkien went on to outline an alternative plot for "Lord of The Rings", as it would have been written had such an allegory been intended, and which would have made the book into a dystopia. While all this does not mean Tolkien's works may not be treated as having allegorical themes, especially when reinterpreted through postmodern sensibilities, it at least suggests that none were conscious in his writings. This further reinforces the idea of forced allegoresis, as allegory is often a matter of interpretation and only sometimes of original artistic intention. Like allegorical stories, allegorical poetry has two meanings – a literal meaning and a symbolic meaning. Some unique specimens of allegory can be found in the following works: Edmund Spenser – The Faerie Queene: The several knights in the poem actually stand for several virtues. William Shakespeare – The Tempest: an allegory of the civilisation/barbarism binary as it pertains to colonialism John Bunyan – The Pilgrim's Progress: The journey of the protagonists Christian and Evangelist symbolises the ascension of the soul from earth to Heaven. Nathaniel Hawthorne – Young Goodman Brown: The Devil's Staff symbolises defiance of God. The characters' names, such as Goodman and Faith, ironically serve as paradox in the conclusion of the story. Nathaniel Hawthorne – The Scarlet Letter: The letter represents self-reliance from America's Puritan and conformity. George Orwell – Animal Farm: The pigs stand for political figures of the Russian Revolution. László Krasznahorkai – The Melancholy of Resistance and the film Werckmeister Harmonies: It uses a circus to describe an occupying dysfunctional government. Edgar Allan Poe – The Masque of the Red Death: The story can be read as an allegory for humans' inability to escape death. Arthur Miller – The Crucible: The Salem witch trials are thought to be an allegory for McCarthyism and the blacklisting of Communists in the United States of America. Shel Silverstein – The Giving Tree: The book has been described as an allegory about relationships; between parents and children, between romantic partners, or between humans and the environment. Art Some elaborate and successful specimens of allegory are to be found in the following works, arranged in approximate chronological order: Ambrogio Lorenzetti – Allegoria del Buono e Cattivo Governo e loro Effetti in Città e Campagna () Sandro Botticelli – Primavera () Albrecht Dürer – Melencolia I (1514) Bronzino – Venus, Cupid, Folly and Time () The English School's – "Allegory of Queen Elizabeth" () Artemisia Gentileschi – Allegory of Inclination (), An Allegory of Peace and the Arts under the English Crown (1638); Self-Portrait as the Allegory of Painting () The Feast of Herod with the Beheading of St John the Baptist by Bartholomeus Strobel is also an allegory of Europe in the time of the Thirty Years War, with portraits of many leading political and military figures. Jan Vermeer – Allegory of Painting () Fernand Le Quesne – Allégorie de la publicité Jean-Léon Gérôme – Truth Coming Out of Her Well (1896) Graydon Parrish – The Cycle of Terror and Tragedy (2006) Many statues of Lady Justice: "Such visual representations have raised the question why so many allegories in the history of art, pertaining occupations once reserved for men only, are of female sex." Damien Hirst Verity (2012) Yves Decadt – Falling Angels : Allegories about the 7 sins and 7 virtues (2023) Gallery See also Allegorical interpretations of Plato Allegorical interpretation of the Bible Allegory in Renaissance literature Allegorical sculpture Cultural depictions of Philip II of Spain Diwan (poetry) Freemasonry ("a system of morality veiled in allegory and illustrated by symbols.") Parable Semiotics Theagenes of Rhegium References Further reading Frye, Northrop (1957) Anatomy of Criticism. Fletcher, Angus (1964) Allegory: The Theory of a Symbolic Mode. Foucault, Michel (1966) The Order of Things. External links Dictionary of the History of Ideas: Allegory in Literary history Electronic Antiquity, Richard Levis, "Allegory and the Eclogues" Roman definitions of allegoria and interpreting Vergil's Eclogues. What is an Allegory? Introduction to Allegory Figures of speech Narrative techniques Poetic devices

1839

https://en.wikipedia.org/wiki/Allotropy

Allotropy

Allotropy or allotropism () is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements. Allotropes are different structural modifications of an element: the atoms of the element are bonded together in different manners. For example, the allotropes of carbon include diamond (the carbon atoms are bonded together to form a cubic lattice of tetrahedra), graphite (the carbon atoms are bonded together in sheets of a hexagonal lattice), graphene (single sheets of graphite), and fullerenes (the carbon atoms are bonded together in spherical, tubular, or ellipsoidal formations). The term allotropy is used for elements only, not for compounds. The more general term, used for any compound, is polymorphism, although its use is usually restricted to solid materials such as crystals. Allotropy refers only to different forms of an element within the same physical phase (the state of matter, such as a solid, liquid or gas). The differences between these states of matter would not alone constitute examples of allotropy. Allotropes of chemical elements are frequently referred to as polymorphs or as phases of the element. For some elements, allotropes have different molecular formulae or different crystalline structures, as well as a difference in physical phase; for example, two allotropes of oxygen (dioxygen, O2, and ozone, O3) can both exist in the solid, liquid and gaseous states. Other elements do not maintain distinct allotropes in different physical phases; for example, phosphorus has numerous solid allotropes, which all revert to the same P4 form when melted to the liquid state. History The concept of allotropy was originally proposed in 1840 by the Swedish scientist Baron Jöns Jakob Berzelius (1779–1848). The term is derived . After the acceptance of Avogadro's hypothesis in 1860, it was understood that elements could exist as polyatomic molecules, and two allotropes of oxygen were recognized as O2 and O3. In the early 20th century, it was recognized that other cases such as carbon were due to differences in crystal structure. By 1912, Ostwald noted that the allotropy of elements is just a special case of the phenomenon of polymorphism known for compounds, and proposed that the terms allotrope and allotropy be abandoned and replaced by polymorph and polymorphism. Although many other chemists have repeated this advice, IUPAC and most chemistry texts still favour the usage of allotrope and allotropy for elements only. Differences in properties of an element's allotropes Allotropes are different structural forms of the same element and can exhibit quite different physical properties and chemical behaviours. The change between allotropic forms is triggered by the same forces that affect other structures, i.e., pressure, light, and temperature. Therefore, the stability of the particular allotropes depends on particular conditions. For instance, iron changes from a body-centered cubic structure (ferrite) to a face-centered cubic structure (austenite) above 906 °C, and tin undergoes a modification known as tin pest from a metallic form to a semiconductor form below 13.2 °C (55.8 °F). As an example of allotropes having different chemical behaviour, ozone (O3) is a much stronger oxidizing agent than dioxygen (O2). List of allotropes Typically, elements capable of variable coordination number and/or oxidation states tend to exhibit greater numbers of allotropic forms. Another contributing factor is the ability of an element to catenate. Examples of allotropes include: Non-metals Metalloids Metals Among the metallic elements that occur in nature in significant quantities (56 up to U, without Tc and Pm), almost half (27) are allotropic at ambient pressure: Li, Be, Na, Ca, Ti, Mn, Fe, Co, Sr, Y, Zr, Sn, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Yb, Hf, Tl, Th, Pa and U. Some phase transitions between allotropic forms of technologically relevant metals are those of Ti at 882 °C, Fe at 912 °C and 1394 °C, Co at 422 °C, Zr at 863 °C, Sn at 13 °C and U at 668 °C and 776 °C. Lanthanides and actinides Cerium, samarium, dysprosium and ytterbium have three allotropes. Praseodymium, neodymium, gadolinium and terbium have two allotropes. Plutonium has six distinct solid allotropes under "normal" pressures. Their densities vary within a ratio of some 4:3, which vastly complicates all kinds of work with the metal (particularly casting, machining, and storage). A seventh plutonium allotrope exists at very high pressures. The transuranium metals Np, Am, and Cm are also allotropic. Promethium, americium, berkelium and californium have three allotropes each. Nanoallotropes In 2017, the concept of nanoallotropy was proposed by Rafal Klajn of the Organic Chemistry Department of the Weizmann Institute of Science. Nanoallotropes, or allotropes of nanomaterials, are nanoporous materials that have the same chemical composition (e.g., Au), but differ in their architecture at the nanoscale (that is, on a scale 10 to 100 times the dimensions of individual atoms). Such nanoallotropes may help create ultra-small electronic devices and find other industrial applications. The different nanoscale architectures translate into different properties, as was demonstrated for surface-enhanced Raman scattering performed on several different nanoallotropes of gold. A two-step method for generating nanoallotropes was also created. See also Isomer Polymorphism (materials science) Notes References External links Allotropes – Chemistry Encyclopedia Chemistry Inorganic chemistry Physical chemistry

1841

https://en.wikipedia.org/wiki/Economy%20of%20Alberta

Economy of Alberta

The economy of Alberta is the sum of all economic activity in Alberta, Canada's fourth largest province by population. Alberta's GDP in 2018 was CDN$338.2 billion. Although Alberta has a presence in many industries such as agriculture, forestry, education, tourism, finance, and manufacturing, the politics and culture of the province have been closely tied to the production of fossil energy since the 1940s. Alberta—with an estimated 1.4 billion cubic metres of unconventional oil resource in the bituminous oil sands—leads Canada as an oil producer. In 2018, Alberta's energy sector contributed over $71.5 billion to Canada's nominal gross domestic product. According to Statistics Canada, in May 2018, the oil and gas extraction industry reached its highest proportion of Canada's national GDP since 1985, exceeding 7% and "surpass[ing] banking and insurance" with extraction of non-conventional oil from the oilsands reaching an "impressive", all-time high in May 2018. With conventional oil extraction "climbed up to the highs from 2007", the demand for Canadian oil was strong in May. From 1990 to 2003, Alberta's economy grew by 57% compared to 43% for all of Canada—the strongest economic growth of any region in Canada. In 2006 Alberta's per capita GDP was higher than all US states, and one of the highest figures in the world. In 2006, the deviation from the national average was the largest for any province in Canadian history. Alberta's per capita GDP in 2007 was by far the highest of any province in Canada at C$74,825 (approx. US$75,000). Alberta's per capita GDP in 2007 was 61% higher than the Canadian average of C$46,441 and more than twice that of all the Maritime provinces. From 2004 to 2014 Alberta's "exports of commodities rose 91%, reaching $121 billion in 2014" and 500,000 new jobs were created. In 2014, Alberta's real GDP by expenditure grew by 4.8%, the strongest growth rate among the provinces." In 2017, Alberta's real per capita GDP—the economic output per person—was $71,092, compared to the Canadian average of $47,417. In 2016, Alberta's A grade on its income per capita was based on the fact that it was almost "identical" to that of the "top peer country"—Ireland. The energy industry provided 7.7% of all jobs in Alberta in 2013, and 140,300 jobs representing 6.1% of total employment of 2,286,900 in Alberta in 2017. The unemployment rate in Alberta peaked in November 2016 at 9.1%. Its lowest point in a ten-year period from July 2009 to July 2019, was in September 2013 at 4.3%. The unemployment rate in the spring of 2019 in Alberta was 6.7% with 21,000 jobs added in April. By July 2019, the seasonally adjusted unemployment rate had increased to 7.0%. By August 2019, the employment number in Alberta was 2,344,000, following the loss of 14,000 full-time jobs in July, which represented the "largest decline" in Canada according to Statistics Canada. Beginning in June 2014, the record high volume of worldwide oil inventories in storage—referred to as a global oil glut—caused crude oil prices to collapse at near ten-year low prices. By 2016 West Texas Intermediate (WTI)—the benchmark light, sweet crude oil—reached its lowest price in ten years—US$26.55. In 2012 the price of WTI had reached US$125 and in 2014 the price was $100. By February 2016 the price of Western Canadian Select WCS—the Alberta benchmark heavy crude oil—was US$14.10—the cheapest oil in the world. Alberta boom years from 2010 to 2014 ended with a "long and deep" recession that began in 2014, driven by low commodity pricing ended in 2017. By 2019—five years later—Alberta was still in recovery. Overall, there were approximately 35,000 jobs lost in mining, oil and gas alone. Since 2014, sectors that offered high-wage employment of $30 and above, saw about 100,000 jobs disappear—"construction (down more than 45,000 jobs), mining, oil and gas (down nearly 35,000), and professional services (down 18,000)," according to the economist, Trevor Tombe. There was a decrease in wages, in the number of jobs, and in the number of hours worked. The total loss of incomes from "workers, business, and government" amounted to about 20 percent or about CDN$75 billion less per year. Since 2011, prices have increased in Alberta by 18%. However, a typical worker in Alberta still earns more than a typical worker in all the other provinces and territories. By March 2016, Alberta lost over 100,000 jobs in the oil patch. In spite of the surplus with the low price of WCS in 2015—99% of Canada's oil exports went to the United States and in 2015 Canada was still their largest exporter of total petroleum—3,789 thousand bpd in September—3,401 thousand bpd in October up from 3,026 thousand bpd in September 2014. By April 2019, two of the major oil companies, still had thousands of workers—Suncor had about 12,500 employees and Canadian Natural Resources had about 10,000 full-time employees. Alberta has the "lowest taxes overall of any province or territory" in Canada, due in part to having high resource tax revenues. However, overall tax revenues from oil royalties and other non-renewable sources has fallen steeply along with the drop in global oil prices. For example, in 2013, oil tax revenues brought in 9.58 billion, or 21% of the total Provincial budget, whereas in 2018 it had fallen to just 5.43 billion, or 11% of the Provincial budget. In the spring of 2020, Alberta's economy suffered from the economic fallout of both the COVID-19 pandemic and the 2020 Russia–Saudi Arabia oil price war." Data Current overview According to ATB Financial's Vice President and Chief Economist—Todd Hirsch, who spoke during a April 2, 2020, webinar hosted by the Calgary Chamber of Commerce, the COVID-19 pandemic in Alberta and its "economic fallout will permanently reshape our economy." Hirsch said that he expects that the resulting contraction in Alberta's economy will be the "worst...Alberta has ever seen." The global price of oil decreased dramatically because of the combination of COVID-19 pandemic and the 2020 Russia–Saudi Arabia oil price war. In March 2020, the United States benchmark crude oil EWest Texas Intermediate (WTI)—upon which Alberta's benchmark crude oil Western Canadian Select (WCS) price is based—dropped to an historical below of US$20 a barrel. The price of WCS bitumen-blend crude was US$3.82 per barrel by the end of March. In 2018, the low price of heavy oil negatively impacted Alberta's economic growth. In November 2018, the price of Western Canadian Select (WCS), the benchmark for Canadian heavy crude, hit its record low of less than US$14 a barrel, as a "surge of production met limited pipeline space causing bottlenecks." Previously, from 2008 through 2018, WCS had sold at an average discount of US$17 against West Texas Intermediate (WTI)—the U.S. crude oil benchmark, but by the fall of 2018, the differential between WCS and WTI reached a record of over US$50 per barrel. In response, then Premier Rachel Notley made a December 2 announcement of a mandatory cut of 8.7% in Alberta's oil production. By December 12, after the announcement of the government's "mandated oil output curtailment", the price of WCS rose c. 70% to c. US$41 a barrel with the WTI differential falling from US50 to c. US$11., according to the Financial Post. The WCS price rose to US$28.60 by January 2019, as the international price of oil had begun to recover from the December "sharp downturn" caused by the ongoing China–U.S. trade war In March 2019, the differential of WTI over WCS decreased to $US9.94 as the price of WTI dropped to US$58.15 a barrel, which is 7.5% lower than it was in March 2018, while the price of WCS increased to US$48.21 a barrel which is 35.7% higher than in March 2018. According to TD Economics' September 2019 report, the government's "mandated oil output curtailment", has resulted in a sustained rebound in WCS prices. However, investment and spending were low in the province. The loss of 14, 000 of the full-time jobs out of 2,344,000 in Alberta in July 2019, represented the "largest decline" in employment in Canada for that month, according to Statistics Canada. In 1985, Alberta's energy industry accounted for 36.1% of the provinces $66.8 billion GDP. In 2006, the mining, oil and gas extraction industry accounted for 29.1% of GDP; by 2012 it was 23.3%; in 2013, it was 24.6% of Alberta's $331.9 billion GDP, and in 2016, the mining, oil and gas extraction industry accounted for about 27.9% of Alberta's GDP. By comparison, "In 2017, the federal, provincial and territorial governments spent some $724 billion on programs and more than $58 billion on interest payments on their public debt, which, combined, amounted to about 36 percent of Canada’s gross domestic product (GDP). Their combined borrowing that year was $27 billion, and their net financial debt at year-end stood at around $1.2 trillion, about 54 percent of GDP." In his July 2019 CBC News article, economist Trevor Tombe said that prior to the 2014 recession, Albertans had experienced boom years from 2010 to 2014, with workers earnings reaching exceptional highs. The recession, which "ended over two years ago" in 2017, was "long and deep". By 2019—five years later—the province was still in recovery. Overall, there were approximately 35,000 jobs lost in mining, oil and gas alone. By 2019, the slow recovery and low earnings growth have resulted in workers getting "fewer hours, fewer jobs and, in some cases, lower wages". Tombe said that from 2014 to 2016, Alberta earned CDN$75 billion less per year with the "total incomes of workers, business, and government combined [falling] by nearly 20 per cent". Tombes said that relative to Alberta's "growth path prior to the recession" Alberta's economy is "down $100 billion per year", compared to what was anticipated. Tombes said that the "boom years that ended in 2014 were the outliers" and the lower earnings in 2019 reflect a "natural adjustment that's moving Alberta to a more normal and balanced labour market." While earnings are lower, because of inflation, prices have increased in Alberta by 18% since 2011. "The $1,183 per week a typical worker earns today goes about as far as $1,000 did nearly a decade ago.", according to Tombe. In spite of the typical worker in Alberta earns $1,183 per week compared to Saskatchewan, where the typical worker earns $1,070 per week. The weekly income a typical worker in all the other Canadian provinces and territories is less than that. Since 2014, sectors that offered high-wage employment of $30 and above, saw about 100,000 jobs disappear—"construction (down more than 45,000 jobs), mining, oil and gas (down nearly 35,000), and professional services (down 18,000)." Alberta's deficit Alberta's net debt was $27.5 billion by March 2019, which represents the end of the 2018-19 fiscal year (FY). By November 2018, Alberta's government expenditures were $55 billion while the revenue was about $48 billion, according to a report by the University of Calgary's School of Public Policy (SPP) economist, Trevor Tombe. Capital investment amounted to $4.3 billion. The provincial government employs more than "210,000 full-time equivalent workers across hundreds of departments, boards and other entities." Tombe, cited a $8.3 billion deficit in his November report, prior to the release in February 2019 of the corrected deficit figures, which was "$1.9 billion less in 2018-19 than originally expected", —$6.9-billion deficit instead of the original $8.8-billion". Alberta's current deficit is "unusual for the province", says Tombe in 2018. During the financial crisis, Alberta's "net asset position equivalent to 15 per cent of GDP"−it "owned more financial assets than it owed in debt." In 2009 Alberta had $31.7 billion in financial assets. Alberta's credit rating On December 3, 2019, Moody's downgraded Alberta's credit rating from Aa2 stable from Aa1 negative and "downgraded the long-term debt ratings of the Alberta Capital Finance Authority and the long-term issuer rating of ATB Financial to Aa2 from Aa1." The agency said that there is a "structural weakness in the provincial economy that remains concentrated and dependent on non-renewable resources ... and remains pressured by a lack of sufficient pipeline capacity to transport oil efficiently with no near-term expectation of a significant rebound in oil-related investments...Alberta's oil and gas sector is carbon-intensive and Alberta's greenhouse gas emissions are the highest among provinces. Alberta is also susceptible to natural disasters including wildfires and floods which could lead to significant mitigation costs by the province." Alberta's real per capita GDP In 2006 Alberta's per capita GDP was higher than all US states, and one of the highest figures in the world. In 2006, the deviation from the national average was the largest for any province in Canadian history. In 2007, Alberta's per capita GDP in 2007 was C$74,825 (approx. US$75,000)—by far the highest of any Canadian province—61% higher than the Canadian average of C$46,441 and more than twice that of all the Maritime provinces. In 2017, Alberta's real per capita GDP—the economic output per person—was $71,092, compared to the Canadian average of $47,417. Alberta's A grade on its income per capita was based on the fact that it was almost "identical" to that of the "top peer country" in 2016, Ireland. In 2017, Alberta's real per capita GDP—the economic output per person—was $71,092 compared to the Canadian average output per person of $47, 417 and Prince Edward Island at $32,123 per person. Since at least 1997, Alberta's per capita GDP has been higher than that of any other province. In 2014, Alberta's reached its highest gap ever—$30,069—between its real capita GDP and the Canadian average. According to the Conference Board of Canada, in 2016 Alberta earned an "A grade with income per capita almost identical to the top peer country, Ireland." In 2016 income per capita in Alberta was $59,259. Alberta's GDP compared to other provinces A table listing annual ""Gross domestic product (GDP) at basic prices, by industry, provinces and territories (x 1,000,000)." from 2014 through 2018 with value chained to 2012 dollars. Source: Statistics Canada: GDP (totals), Economic geography Alberta has a small internal market, and it is relatively distant from major world markets, despite good transportation links to the rest of Canada and to the United States to the south. Alberta is located in the northwestern quadrant of North America, in a region of low population density called the Interior Plains. Alberta is landlocked, and separated by a series of mountain ranges from the nearest outlets to the Pacific Ocean, and by the Canadian Shield from ports on the Lakehead or Hudson Bay. From these ports to major populations centres and markets in Europe or Asia is several thousands of kilometers. The largest population clusters of North America (the Boston – Washington, San Francisco - San Diego, Chicago – Pittsburgh, and Quebec City – Windsor Corridors) are all thousands of kilometers away from Alberta. Partly for this reason, Alberta has never developed a large presence in the industries that have traditionally started industrialization in other places (notably the original Industrial Revolution in Great Britain) but which require large labour forces, and large internal markets or easy transportation to export markets, namely textiles, metallurgy, or transportation-related manufacturing (automotives, ships, or train cars). Agriculture has been a key industry since the 1870s. The climate is dry, temperate, and continental, with extreme variations between seasons. Productive soils are found in most of the southern half of the province (excluding the mountains), and in certain parts of the north. Agriculture on a large scale is practiced further north in Alberta than anywhere else in North America, extending into the Peace River country above the 55th parallel north. Generally, however, northern Alberta (and areas along the Alberta Rockies) is forested land and logging is more important than agriculture there. Agriculture is divided into primarily field crops in the east, livestock in the west, and a mixture in between and in the parkland belt in the near north. Conventional oil and gas fields are found throughout the province on an axis running from the northwest to the southeast. Oil sands are found in the northeast, especially around Fort McMurray (the Athabasca Oil Sands). Because of its (relatively) economically isolated location, Alberta relies heavily on transportation links with the rest of the world. Alberta's historical development has been largely influenced by the development of new transportation infrastructure, (see "trends" below). Alberta is now served by two major transcontinental railways (CN and CP), by three major highway connections to the Pacific (the Trans-Canada via Kicking Horse Pass, the Yellowhead via Yellowhead Pass and the Crowsnest via Crowsnest Pass), and one to the United States (Interstate 15), as well as two international airports (Calgary and Edmonton). Also, Alberta is connected to the TransCanada pipeline system (natural gas) to Eastern Canada, the Northern Border Pipeline (gas), Alliance Pipeline (gas) and Enbridge Pipeline System (oil) to the Eastern United States, the Gas Transmission Northwest and Northwest Pipeline (gas) to the Western United States, and the McNeill HVDC Back-to-back station (electric power) to Saskatchewan. Economic regions and cities Since the days of early agricultural settlement, the majority of Alberta's population has been concentrated in the parkland belt (mixed forest-grassland), a boomerang-shaped strip of land extending along the North Saskatchewan River from Lloydminster to Edmonton and then along the Rocky Mountain foothills south to Calgary. This area is slightly more humid and treed than the drier prairie (grassland) region called Palliser's Triangle to its south, and large areas of the south (the "Special Areas") were depopulated during the droughts of the 1920s and 30s. The chernozem (black soil) of the parkland region is more agriculturally productive than the red and grey soils to the south. Urban development has also been most advanced in the parkland belt. Edmonton and Red Deer are parkland cities, while Calgary is on the parkland-prairie fringe. Lethbridge and Medicine Hat are prairie cities. Grande Prairie lies in the Peace River Country a parkland region (with isolated patches of prairie, hence the name) in the northwest isolated from the rest of the parkland by the forested Swan Hills. Fort McMurray is the only urbanized population centre in the boreal forest which covers much of the northern half of the province. Calgary and Edmonton The Calgary and Edmonton regions, by far the province's two largest metropolitan regions, account for the majority of the province's population. They are relatively close to each other by the standards of Western Canada and distant from other metropolitan regions such as Vancouver or Winnipeg. This has produced a history of political and economic rivalry and comparison but also economic integration that has created an urbanized corridor between the two cities. The economic profile of the two regions is slightly different. Both cities are mature service economies built on a base of resource extraction in their hinterlands. However, Calgary is predominant in hosting the regional and national headquarters of oil and gas exploration and drilling companies. Edmonton skews much more towards governments, universities and hospitals as large employers, while Edmonton's suburban fringes (e.g. Fort Saskatchewan, Nisku, Strathcona County (Refinery Row), Leduc, Beaumont, Acheson) are home to most of the province's manufacturing (much of it related to oil and gas). Calgary-Edmonton Corridor The Calgary-Edmonton Corridor is the most urbanized region in the province and one of the densest in Canada. Measured from north to south, the region covers a distance of roughly . In 2001, the population of the Calgary-Edmonton Corridor was 2.15 million (72% of Alberta's population). It is also one of the fastest-growing regions in the country. A 2003 study by TD Bank Financial Group found the corridor was the only Canadian urban centre to amass a U.S. level of wealth while maintaining a Canadian-style quality of life, offering universal health care benefits. The study found GDP per capita in the corridor was 10% above average U.S. metropolitan areas and 40% above other Canadian cities at that time. Calgary–Edmonton rivalry Seeing Calgary and Edmonton as part of a single economic region as the TD study did in 2003 was novel. The more traditional view had been to see the two cities as economic rivals. For example, in the 1980 both cities claimed to be the "Oil Capital of Canada". Background Alberta has always been an export-oriented economy. In line with Harold Innis' "Staples Thesis", the economy has changed substantially as different export commodities have risen or fallen in importance. In sequence, the most important products have been: fur, wheat and beef, and oil and gas. The development of transportation in Alberta has been crucial to its historical economic development. The North American fur trade relied on birch-bark canoes, York boats, and Red River carts on buffalo trails to move furs out of, and European trade goods into, the region. Immigration into the province was eased tremendously by the arrival of the Canadian Pacific Railway's transcontinental line in 1880s. Commercial farming became viable in the area once the grain trade had developed technologies to handle the bulk export of grain, especially hopper cars and grain elevators. Oil and gas exports have been possible because of increasing pipeline technology. Prior to the 1950s, Alberta was a primarily agricultural economy, based on the export of wheat, beef, and a few other commodities. The health of economy was closely bound up with the price of wheat. In 1947 a major oil field was discovered near Edmonton. It was not the first petroleum find in Alberta, but it was large enough to significantly alter the economy of the province (and coincided with growing American demand for energy). Since that time, Alberta's economic fortunes have largely tracked the price of oil, and increasingly natural gas prices. When oil prices spiked during the 1967 Oil Embargo, 1973 oil crisis, and 1979 energy crisis, Alberta's economy boomed. However, during the 1980s oil glut Alberta's economy suffered. Alberta boomed once again during the 2003-2008 oil price spike. In July 2008 the price of oil peaked and began to decline and Alberta's economy soon followed suit, with unemployment doubling within a year. By 2009 with natural gas prices at a long-term low, Alberta's economy was in poor health compared to before, although still relatively better than many other comparable jurisdictions. By 2012 natural gas prices were at a ten-year low, the Canadian dollar was high, and oil prices recovered until June 2014. The spin-offs from petroleum allowed Alberta to develop many other industries. Oilpatch-related manufacturing is an obvious example, but financial services and government services have also benefited from oil money. A comparison of the development of Alberta's less oil and gas-endowed neighbours, Saskatchewan and Manitoba, reveals the role petroleum has played. Alberta was once the smallest of the three Prairie Provinces by population in the early 20th century, but by 2009, Alberta's population was 3,632,483 or approximately three times as much as either Saskatchewan (1,023,810) or Manitoba (1,213,815). Employment Alberta's economy is a highly developed one in which most people work in services such as healthcare, government, or retail. Primary industries are also of great importance, however. By March 2016 the unemployment rate in Alberta rose to 7.9%— its "highest level since April 1995 and the first time the province’s rate has surpassed the national average since December 1988." There were 21,200 fewer jobs than February 2015. The unemployment rate was expected to average 7.4% in 2016. The Canadian Association of Petroleum Producers (CAPP) claimed that Alberta lost 35,000 jobs in 2015–25,000 from the oil services sector and 10,000 from exploration and production. Full-time employment increased by 10,000 in February 2016 after falling 20,000 in both December 2015 and January 2016. The natural resources industry lost 7,400 jobs in February. "Year-over-year (y/y), the goods sector lost 56,000 jobs, while the services sector gained 34,800." In 2015 Alberta's population increased by 3,900. While Alberta had a reprieve in job loss in February 2016—up 1,400 jobs after losing jobs in October, November, December 2015 and January 2016—Ontario lost 11,200 jobs, Saskatchewan lost 7,800 jobs and New Brunswick lost 5,700 jobs. The unemployment rate in spring 2019 in Alberta was 6.7% with 21,000 jobs added in April; in Calgary it was 7.4%, in Edmonton it was 6.9%, in Northern Alberta it was 11.2%, and in Southern Alberta it was 7.8%. By July 2019, the seasonally adjusted unemployment rate had increased to 7.0%, which represented an increase of 0.3% from the previous year. The unemployment rate in Alberta peaked in November 2016 at 9.1%. Its lowest point in a ten-year period from July 2009 to July 2019 was in September 2013 at 4.3%. By August 2019, the employment number in Alberta was 2,344,000, following the loss of 14,000 full-time jobs in July, which represented that the "largest decline" in Canada according to Statistics Canada. Employment by industry, Alberta – seasonally adjusted (000s) Extraction industries According to the Government of Alberta, the "mining and oil and gas extraction industry accounted for 6.1% of total employment in Alberta in 2017". By April 2019, there were about 145,100 people working directly with the oil and gas industry. In 2013, there were 171,200 people employed in the mining and oil and gas extraction industry. In 2007 there were 146,900 people working in the mining and oil and gas extraction industry. Oil and Gas Extraction industry = 69,900 Support Activities for Mining & Oil & Gas Extraction (primarily oil and gas exploration and drilling) = 71,700 Mining other than oil and gas (mainly coal and mineral mining & quarrying) = 5,100 Largest employers of Alberta According to Alberta Venture magazine's list of the 50 largest employers in the province, the largest employers are: Sectors Oil and gas extraction industries In 2018, Alberta's energy sector contributed over $71.5 billion to Canada's nominal gross domestic product. In 2006, it accounted for 29.1% of Alberta's GDP; by 2012 it was 23.3%; in 2013, it was 24.6%, and in 2016 it was 27.9%. According to Statistics Canada, in May 2018, the oil and gas extraction industry reached its highest proportion of Canada's national GDP since 1985, exceeding 7% and "surpass[ing] banking and insurance". with extraction of non-conventional oil from the oilsands reaching an "impressive", all-time high in May 2018. With conventional oil extraction "climbed up to the highs from 2007", the demand for Canadian oil was strong in May. Alberta is the largest producer of conventional crude oil, synthetic crude, natural gas and gas products in the country. Alberta is the world's 2nd largest exporter of natural gas and the 4th largest producer. Two of the largest producers of petrochemicals in North America are located in central and north central Alberta. In both Red Deer and Edmonton, world class polyethylene and vinyl manufacturers produce products shipped all over the world, and Edmonton's oil refineries provide the raw materials for a large petrochemical industry to the east of Edmonton. Since the early 1940s, Alberta had supplied oil and gas to the rest of Canada and the United States. The Athabasca River region produces oil for internal and external use. The Athabasca Oil Sands contain the largest proven reserves of oil in the world outside Saudi Arabia. The Athabasca Oil Sands (sometimes known as the Athabasca Tar sands) have estimated unconventional oil reserves approximately equal to the conventional oil reserves of the rest of the world, estimated to be . With the development of new extraction methods such as steam-assisted gravity drainage (SAGD), which was developed in Alberta, bitumen and synthetic crude oil can be produced at costs close to those of conventional crude. Many companies employ both conventional strip mining and non-conventional in situ methods to extract the bitumen from the oil sands. With current technology and at current prices, about of bitumen are recoverable. Fort McMurray, one of Canada's fastest growing cities, has grown enormously in recent years because of the large corporations which have taken on the task of oil production. As of late 2006 there were over $100 billion in oil sands projects under construction or in the planning stages in northeastern Alberta. Another factor determining the viability of oil extraction from the oil sands was the price of oil. The oil price increases since 2003 made it more than profitable to extract this oil, which in the past would give little profit or even a loss. Alberta's economy was negatively impacted by the 2015-2016 oil glut with a record high volume of worldwide oil inventories in storage, with global crude oil collapsing at near ten-year low prices. The United States doubled its 2008 production levels mainly due to substantial improvements in shale "fracking" technology, OPEC members consistently exceeded their production ceiling, and China experienced a marked slowdown in economic growth and crude oil imports. Mining and Oil and Gas Extraction Industry (2017) Data Source: Statistics Canada, Labour Force Survey, CANSIM Table 282–0008, 2017 "Employment share is obtained by dividing the number of employment in this industry by total employment in Alberta." Natural gas Natural gas has been found at several points, and in 1999, the production of natural gas liquids (ethane, propane, and butanes) totalled , valued at $2.27 billion. Alberta also provides 13% of all the natural gas used in the United States. Notable gas reserves were discovered in the 1883 near Medicine Hat. The town of Medicine Hat began using gas for lighting the town, and supplying light and fuel for the people, and a number of industries using the gas for manufacturing. One of North America's benchmarks is Alberta gas-trading price—the AECO "C" spot price. In 2018, 69% of the marketable natural gas in Canada was produced in Alberta. Forty nine per cent of Alberta's natural gas production is consumed in Alberta. In Alberta, the average household uses of natural gas annually. Domestic demand for natural gas is divided across sectors, with the highest demand—83% coming from "industrial, electrical generation, transportation and other sectors," and 17 percent going towards residential and commercial sectors. Of the provinces, Alberta is the largest consumer of natural gas at 3.9 billion cubic feet per day. By August 2019, the Financial Post said that "AECO daily and monthly natural gas prices" were at the lowest they have been since 1992. Canada's largest natural gas producer, Canadian Natural Resources Ltd., announced in early August that it had "shut in gas production of 27,000 million cubic feet per day because of depressed prices. Previously natural gas pipeline drilled in the southern Alberta and shipped to markets in Eastern Canada. By 2019, the entire natural gas industry had was primarily operating in northwestern Alberta and northeastern B.C., which resulted in strained infrastructure. New systems will not be complete until 2021 or 2023. In September 25, 2017 Alberta's benchmark AECO natural gas prices fell into "negative territory – "meaning producers have had to pay customers to take their gas". It happened again in early October with the price per gigajoule dropping to -7 cents. TransCanada (now TC Energy Corp)—which "owns and operates Alberta's "largest natural gas gathering and transmission system, interrupted its pipeline service in the fall of 2017 to complete field maintenance on the Alberta system. In July 2018, RS Energy Group's energy analyst Samir Kayande, said that faced with a glut of natural gas across North America, the continental market price was $3 per gigajoule. Alberta is "awash" with natural gas but faces pipeline bottlenecks. CEOs of nine Alberta natural gas producers requested the Kenney government to mandate production cuts to deal with the crisis. On June 30, the AECO price of gas dropped to 11 cents per gigajoule, because of maintenance issues with the pipeline giant TC Energy Corp. In 2003 Alberta produced of marketable natural gas. That year, 62% of Alberta's natural gas was shipped to the United States, 24% was used within Alberta, and 14% was used in the rest of Canada. In 2006, Alberta consumed of natural gas. The rest was exported across Canada and to the United States. Royalties to Alberta from natural gas and its byproducts are larger than royalties from crude oil and bitumen. In 2006, there were 13,473 successful natural gas wells drilled in Alberta: 12,029 conventional gas wells and 1,444 coalbed methane wells. There may be up to of coalbed methane in Alberta, although it is unknown how much of this gas might be recoverable. Alberta has one of the most extensive natural gas systems in the world as part of its energy infrastructure, with of energy related pipelines. Coal Coal has been mined in Alberta since the late 19th century. Over 1800 mines have operated in Alberta since then. The coal industry was vital to the early development of several communities, especially those in the foothills and along deep river valleys where coal was close to the surface. Alberta is still a major coal producer, every two weeks Alberta produces enough coal to fill the Sky Dome in Toronto. Much of that coal is burned in Alberta for electricity generation. By 2008, Alberta used over 25 million tonnes of coal annually to generate electricity. However, Alberta is set to retire coal power by 2023, ahead of 2030 provincial deadline. Alberta has vast coal resources and 70 per cent of Canada's coal reserves are located in Alberta. This amounts to 33.6 Gigatonnes. Vast beds of coal are found extending for hundreds of miles, a short distance below the surface of the plains. The coal belongs to the Cretaceous beds, and while not so heavy as that of the Coal Measures in England is of excellent quality. In the valley of the Bow River, alongside the Canadian Pacific Railway, valuable beds of anthracite coal are still worked. The usual coal deposits of the area of bituminous or semi-bituminous coal. These are largely worked at Lethbridge in southern Alberta and Edmonton in the centre of the province. Many other parts of the province have pits for private use. Electricity , Alberta's generating capacity was 16,261 MW, and Alberta has about of transmission lines. Alberta has 1491 megawatts of wind power capacity. Production of electricity in Alberta in 2016 by source: Alberta has added 9,000 MW of new supply since 1998. Peak for power use in one day was set on July 9, 2015 – 10,520 MW. Mineral mining Building stones mined in Alberta include Rundle stone, and Paskapoo sandstone. Diamonds were first found in Alberta in 1958, and many stones have been found since, although to date no large-scale mines have been developed. Manufacturing The Edmonton area, and in particular Nisku is a major centre for manufacturing oil and gas related equipment. As well Edmonton's Refinery Row is home to a petrochemical industry. According to a 2016 Statistics Canada report Alberta's manufacturing sales year-over-year sales fell 13.2 per cent, with a loss of almost four per cent from December to January. Alberta's economy continued to shrink because of the collapse of the oil and gas sector. The petroleum and coal product manufacturing industry is now third— behind food and chemicals. Biotechnology Several companies and services in the biotech sector are clustered around the University of Alberta, for example ColdFX. Food processing Owing to the strength of agriculture, food processing was once a major part of the economies of Edmonton and Calgary, but this sector has increasingly moved to smaller centres such as Brooks, the home of XL Foods, responsible for one third of Canada's beef processing in 2011. Transportation Edmonton is a major distribution centre for northern communities, hence the nickname "Gateway to the North". Edmonton is one of CN Rail's most important hubs. Since 1996, Canadian Pacific Railway has its headquarters in downtown Calgary. WestJet, Canada's second largest air carrier, is headquartered in Calgary, by Calgary International Airport, which serves as the airline's primary hub. Prior to its dissolution, Canadian Airlines was headquartered in Calgary by the airport. Prior to its dissolution, Air Canada subsidiary Zip was headquartered in Calgary. Agriculture and forestry Agriculture In the past, cattle, horses, and sheep were reared in the southern prairie region on ranches or smaller holdings. Currently Alberta produces cattle valued at over $3.3 billion, as well as other livestock in lesser quantities. In this region irrigation is widely used. Wheat, accounting for almost half of the $2 billion agricultural economy, is supplemented by canola, barley, rye, sugar beets, and other mixed farming. In 2011, Alberta producers seeded an estimated total of to spring wheat, durum, barley, oats, mixed grains, triticale, canola and dry peas. Of the total seeded area, 94 per cent was harvested as grains and oilseeds and six per cent as greenfeed and silage. Saudi Arabia is a major export target especially for wheat and processed potato products. SA having decided to phase out their own forage and cereal production, Alberta expects this to be an opportunity to fill livestock feed demand in the kingdom. Agriculture has a significant position in the province's economy. Over three million cattle are residents of the province at one time or another, and Albertan beef has a healthy worldwide market. Although beef could also be a major export to Saudi Arabia, as with wheat and potatoes above, market access is lacking at the moment. Nearly one half of all Canadian beef is produced in Alberta. Alberta is one of the prime producers of plains buffalo (bison) for the consumer market. Sheep for wool and lamb are also raised. Wheat and canola are primary farm crops, with Alberta leading the provinces in spring wheat production, with other grains also prominent. Much of the farming is dryland farming, often with fallow seasons interspersed with cultivation. Continuous cropping (in which there is no fallow season) is gradually becoming a more common mode of production because of increased profits and a reduction of soil erosion. Across the province, the once common grain elevator is slowly being lost as rail lines are decreased and farmers now truck the grain to central points. Clubroot (Plasmodiophora brassicae) is a costly disease of Brassicaceae here including canola. In several experiments by Peng et al., out of fungicides, biofungicides, inoculation with beneficial microbes, cultivar resistance, and crop rotation, only genetic resistance combined with more than two years rotation worked susceptible cultivars rotated with other crops did not produce enough improvement. Alberta is the leading beekeeping province of Canada, with some beekeepers wintering hives indoors in specially designed barns in southern Alberta, then migrating north during the summer into the Peace River valley where the season is short but the working days are long for honeybees to produce honey from clover and fireweed. Hybrid canola also requires bee pollination, and some beekeepers service this need. Forestry The vast northern forest reserves of softwood allow Alberta to produce large quantities of lumber, oriented strand board (OSB) and plywood, and several plants in northern Alberta supply North America and the Pacific Rim nations with bleached wood pulp and newsprint. In 1999, lumber products from Alberta were valued at $4.1 billion of which 72% were exported around the world. Since forests cover approximately 59% of the province's land area, the government allows about to be harvested annually from the forests on public lands. Services Despite the high profile of the extractive industries, Alberta has a mature economy and most people work in services. In 2014 there were 1,635.8 thousand people employed in the services-producing sector. Since then, the number has steadily increased to 1754.8 thousand jobs by August 2019, which is an increase of 16.7 thousand jobs from August 2018 This includes wholesale and retail trade; transportation and warehousing; finance, insurance, real estate, rental and leasing; professional, scientific and technical services; business, building and other support services; educational services; health care and social assistance; information, culture and recreation; accommodation and food services; other services (except public administration) and public administration. Finance The TSX Venture Exchange is headquartered in Calgary. The city has the second highest number of corporate head offices in Canada after Toronto, and the financial services industry in Calgary has developed to support them. All major banks including the Big Five maintain corporate offices in Calgary, along with smaller banks such as Equitable Group. Recently there has also been a number of fintech companies founded in Calgary such as the National Digital Asset Exchange and Neo Financial, founded by the Skip-the-Dishes team. One of Canada's largest accounting firms, MNP LLP, is also headquartered in Calgary. Edmonton hosts the headquarters of the only major Canadian banks west of Toronto: Canadian Western Bank, and ATB Financial, as well as the only province-wide credit union, Servus Credit Union. Government Despite Alberta's reputation as a "small government" province, many health care and education professionals are lured to Alberta from other provinces by the higher wages the Alberta government is able to offer because of oil revenues. In 2014 the median household income in Alberta was $100,000 with the average weekly wage at $1,163—23 per cent higher than the Canadian national average. In their May 2018 report co-authored by C. D. Howe Institute's President and CEO, William B.P. Robson, evaluating "the budgets, estimates and public accounts" of 2017/18 fiscal year that were tabled by senior governments in the Canadian provinces and the federal government in terms of reporting financial information, appropriately, with transparency, and in a timely fashion, Alberta and New Brunswick ranked highest. The report also said that, prior to 2016, Alberta had scored poorly in comparison with other provinces, because of "confusing array of "operating," "saving" and "capital" accounts that were not Public Sector Accounting Standards (PSAS) consistent." but since 2016, Alberta has received A-plus grades. The report said that Alberta and New Brunswick in FY2017 provided "straightforward reconciliations of results with budget intentions, their auditors record no reservations, and their budgets and public accounts are timely." Technology Alberta has a burgeoning high tech sector, including prominent technology companies iStockPhoto, Shareworks, Benevity, and Attabotics in Calgary, and Bioware and AltaML in Edmonton. Growth in Calgary's technology sector, particularly at Benevity, fueled predictions of a modest economic recovery in February 2020. See also Economy of Canada Economy of Lethbridge Canadian Oil Patch, for the petroleum industry History of the petroleum industry in Canada Canada's Global Markets Action Plan Free trade agreements of Canada References External links CBC Digital Archives - Striking Oil in Alberta

1842

https://en.wikipedia.org/wiki/Augustin-Louis%20Cauchy

Augustin-Louis Cauchy

Baron Augustin-Louis Cauchy ( , , ; 21 August 178923 May 1857) was a French mathematician, engineer, and physicist who made pioneering contributions to several branches of mathematics, including mathematical analysis and continuum mechanics. He was one of the first to state and rigorously prove theorems of calculus, rejecting the heuristic principle of the generality of algebra of earlier authors. He (nearly) single-handedly founded complex analysis and the study of permutation groups in abstract algebra. A profound mathematician, Cauchy had a great influence over his contemporaries and successors; Hans Freudenthal stated: "More concepts and theorems have been named for Cauchy than for any other mathematician (in elasticity alone there are sixteen concepts and theorems named for Cauchy)." Cauchy was a prolific writer; he wrote approximately eight hundred research articles and five complete textbooks on a variety of topics in the fields of mathematics and mathematical physics. Biography Youth and education Cauchy was the son of Louis François Cauchy (1760–1848) and Marie-Madeleine Desestre. Cauchy had two brothers: Alexandre Laurent Cauchy (1792–1857), who became a president of a division of the court of appeal in 1847 and a judge of the court of cassation in 1849, and Eugene François Cauchy (1802–1877), a publicist who also wrote several mathematical works. Cauchy married Aloise de Bure in 1818. She was a close relative of the publisher who published most of Cauchy's works. They had two daughters, Marie Françoise Alicia (1819) and Marie Mathilde (1823). Cauchy's father was a highly ranked official in the Parisian Police of the Ancien Régime, but lost this position due to the French Revolution (July 14, 1789), which broke out one month before Augustin-Louis was born. The Cauchy family survived the revolution and the following Reign of Terror (1793–94) by escaping to Arcueil, where Cauchy received his first education, from his father. After the execution of Robespierre (1794), it was safe for the family to return to Paris. There Louis-François Cauchy found himself a new bureaucratic job in 1800, and quickly moved up the ranks. When Napoleon Bonaparte came to power (1799), Louis-François Cauchy was further promoted, and became Secretary-General of the Senate, working directly under Laplace (who is now better known for his work on mathematical physics). The famous mathematician Lagrange was also a friend of the Cauchy family. On Lagrange's advice, Augustin-Louis was enrolled in the École Centrale du Panthéon, the best secondary school of Paris at that time, in the fall of 1802. Most of the curriculum consisted of classical languages; the young and ambitious Cauchy, being a brilliant student, won many prizes in Latin and the humanities. In spite of these successes, Augustin-Louis chose an engineering career, and prepared himself for the entrance examination to the École Polytechnique. In 1805, he placed second of 293 applicants on this exam and was admitted. One of the main purposes of this school was to give future civil and military engineers a high-level scientific and mathematical education. The school functioned under military discipline, which caused Cauchy some problems in adapting. Nevertheless, he completed the course in 1807, at the age of 18, and went on to the École des Ponts et Chaussées (School for Bridges and Roads). He graduated in civil engineering, with the highest honors. Engineering days After finishing school in 1810, Cauchy accepted a job as a junior engineer in Cherbourg, where Napoleon intended to build a naval base. Here Augustin-Louis stayed for three years, and was assigned the Ourcq Canal project and the Saint-Cloud Bridge project, and worked at the Harbor of Cherbourg. Although he had an extremely busy managerial job, he still found time to prepare three mathematical manuscripts, which he submitted to the Première Classe (First Class) of the Institut de France. Cauchy's first two manuscripts (on polyhedra) were accepted; the third one (on directrices of conic sections) was rejected. In September 1812, now 23 years old, Cauchy returned to Paris after becoming ill from overwork. Another reason for his return to the capital was that he was losing interest in his engineering job, being more and more attracted to the abstract beauty of mathematics; in Paris, he would have a much better chance to find a mathematics related position. Therefore, when his health improved in 1813, Cauchy chose not to return to Cherbourg. Although he formally kept his engineering position, he was transferred from the payroll of the Ministry of the Marine to the Ministry of the Interior. The next three years Augustin-Louis was mainly on unpaid sick leave; he spent his time quite fruitfully, working on mathematics (on the related topics of symmetric functions, the symmetric group and the theory of higher-order algebraic equations). He attempted admission to the First Class of the Institut de France but failed on three different occasions between 1813 and 1815. In 1815 Napoleon was defeated at Waterloo, and the newly installed Bourbon king Louis XVIII took the restoration in hand. The Académie des Sciences was re-established in March 1816; Lazare Carnot and Gaspard Monge were removed from this Academy for political reasons, and the king appointed Cauchy to take the place of one of them. The reaction of Cauchy's peers was harsh; they considered the acceptance of his membership in the Academy an outrage, and Cauchy thereby created many enemies in scientific circles. Professor at École Polytechnique In November 1815, Louis Poinsot, who was an associate professor at the École Polytechnique, asked to be exempted from his teaching duties for health reasons. Cauchy was by then a rising mathematical star, who certainly merited a professorship. One of his great successes at that time was the proof of Fermat's polygonal number theorem. He finally quit his engineering job, and received a one-year contract for teaching mathematics to second-year students of the École Polytechnique. In 1816, this Bonapartist, non-religious school was reorganized, and several liberal professors were fired; Cauchy was promoted to full professor. When Cauchy was 28 years old, he was still living with his parents. His father found it high time for his son to marry; he found him a suitable bride, Aloïse de Bure, five years his junior. The de Bure family were printers and booksellers, and published most of Cauchy's works. Aloïse and Augustin were married on April 4, 1818, with great Roman Catholic ceremony, in the Church of Saint-Sulpice. In 1819 the couple's first daughter, Marie Françoise Alicia, was born, and in 1823 the second and last daughter, Marie Mathilde. The conservative political climate that lasted until 1830 suited Cauchy perfectly. In 1824 Louis XVIII died, and was succeeded by his even more conservative brother Charles X. During these years Cauchy was highly productive, and published one important mathematical treatise after another. He received cross-appointments at the Collège de France, and the . In exile In July 1830, the July Revolution occurred in France. Charles X fled the country, and was succeeded by the non-Bourbon king Louis-Philippe (of the House of Orléans). Riots, in which uniformed students of the École Polytechnique took an active part, raged close to Cauchy's home in Paris. These events marked a turning point in Cauchy's life, and a break in his mathematical productivity. Cauchy, shaken by the fall of the government and moved by a deep hatred of the liberals who were taking power, left Paris to go abroad, leaving his family behind. He spent a short time at Fribourg in Switzerland, where he had to decide whether he would swear a required oath of allegiance to the new regime. He refused to do this, and consequently lost all his positions in Paris, except his membership of the Academy, for which an oath was not required. In 1831 Cauchy went to the Italian city of Turin, and after some time there, he accepted an offer from the King of Sardinia (who ruled Turin and the surrounding Piedmont region) for a chair of theoretical physics, which was created especially for him. He taught in Turin during 1832–1833. In 1831, he was elected a foreign member of the Royal Swedish Academy of Sciences, and the following year a Foreign Honorary Member of the American Academy of Arts and Sciences. In August 1833 Cauchy left Turin for Prague to become the science tutor of the thirteen-year-old Duke of Bordeaux, Henri d'Artois (1820–1883), the exiled Crown Prince and grandson of Charles X. As a professor of the École Polytechnique, Cauchy had been a notoriously bad lecturer, assuming levels of understanding that only a few of his best students could reach, and cramming his allotted time with too much material. The young Duke had neither taste nor talent for either mathematics or science, so student and teacher were a perfect mismatch. Although Cauchy took his mission very seriously, he did this with great clumsiness, and with surprising lack of authority over the Duke. During his civil engineering days, Cauchy once had been briefly in charge of repairing a few of the Parisian sewers, and he made the mistake of mentioning this to his pupil; with great malice, the young Duke went about saying Mister Cauchy started his career in the sewers of Paris. Cauchy's role as tutor lasted until the Duke became eighteen years old, in September 1838. Cauchy did hardly any research during those five years, while the Duke acquired a lifelong dislike of mathematics. The only good that came out of this episode was Cauchy's promotion to baron, a title by which Cauchy set great store. In 1834, his wife and two daughters moved to Prague, and Cauchy was finally reunited with his family after four years in exile. Last years Cauchy returned to Paris and his position at the Academy of Sciences late in 1838. He could not regain his teaching positions, because he still refused to swear an oath of allegiance. In August 1839 a vacancy appeared in the Bureau des Longitudes. This Bureau bore some resemblance to the Academy; for instance, it had the right to co-opt its members. Further, it was believed that members of the Bureau could "forget about" the oath of allegiance, although formally, unlike the Academicians, they were obliged to take it. The Bureau des Longitudes was an organization founded in 1795 to solve the problem of determining position at sea — mainly the longitudinal coordinate, since latitude is easily determined from the position of the sun. Since it was thought that position at sea was best determined by astronomical observations, the Bureau had developed into an organization resembling an academy of astronomical sciences. In November 1839 Cauchy was elected to the Bureau, and discovered immediately that the matter of the oath was not so easily dispensed with. Without his oath, the king refused to approve his election. For four years Cauchy was in the position of being elected but not approved; accordingly, he was not a formal member of the Bureau, did not receive payment, could not participate in meetings, and could not submit papers. Still Cauchy refused to take any oaths; however, he did feel loyal enough to direct his research to celestial mechanics. In 1840, he presented a dozen papers on this topic to the Academy. He also described and illustrated the signed-digit representation of numbers, an innovation presented in England in 1727 by John Colson. The confounded membership of the Bureau lasted until the end of 1843, when Cauchy was finally replaced by Poinsot. Throughout the nineteenth century the French educational system struggled over the separation of church and state. After losing control of the public education system, the Catholic Church sought to establish its own branch of education and found in Cauchy a staunch and illustrious ally. He lent his prestige and knowledge to the École Normale Écclésiastique, a school in Paris run by Jesuits, for training teachers for their colleges. He also took part in the founding of the Institut Catholique. The purpose of this institute was to counter the effects of the absence of Catholic university education in France. These activities did not make Cauchy popular with his colleagues, who, on the whole, supported the Enlightenment ideals of the French Revolution. When a chair of mathematics became vacant at the Collège de France in 1843, Cauchy applied for it, but received just three of 45 votes. The year 1848 was the year of revolution all over Europe; revolutions broke out in numerous countries, beginning in France. King Louis-Philippe, fearful of sharing the fate of Louis XVI, fled to England. The oath of allegiance was abolished, and the road to an academic appointment was finally clear for Cauchy. On March 1, 1849, he was reinstated at the Faculté de Sciences, as a professor of mathematical astronomy. After political turmoil all through 1848, France chose to become a Republic, under the Presidency of Louis Napoleon Bonaparte, nephew of Napoleon Bonaparte and son of Napoleon's brother, who had been installed as the first king of Holland. Soon (early 1852) the President made himself Emperor of France, and took the name Napoleon III. Not unexpectedly, the idea came up in bureaucratic circles that it would be useful to again require a loyalty oath from all state functionaries, including university professors. This time a cabinet minister was able to convince the Emperor to exempt Cauchy from the oath. Cauchy remained a professor at the university until his death at the age of 67. He received the Last Rites and died of a bronchial condition at 4 a.m. on 23 May 1857. His name is one of the 72 names inscribed on the Eiffel Tower. Work Early work The genius of Cauchy was illustrated in his simple solution of the problem of Apollonius—describing a circle touching three given circles—which he discovered in 1805, his generalization of Euler's formula on polyhedra in 1811, and in several other elegant problems. More important is his memoir on wave propagation, which obtained the Grand Prix of the French Academy of Sciences in 1816. Cauchy's writings covered notable topics. In the theory of series he developed the notion of convergence and discovered many of the basic formulas for q-series. In the theory of numbers and complex quantities, he was the first to define complex numbers as pairs of real numbers. He also wrote on the theory of groups and substitutions, the theory of functions, differential equations and determinants. Wave theory, mechanics, elasticity In the theory of light he worked on Fresnel's wave theory and on the dispersion and polarization of light. He also contributed research in mechanics, substituting the notion of the continuity of geometrical displacements for the principle of the continuity of matter. He wrote on the equilibrium of rods and elastic membranes and on waves in elastic media. He introduced a 3 × 3 symmetric matrix of numbers that is now known as the Cauchy stress tensor. In elasticity, he originated the theory of stress, and his results are nearly as valuable as those of Siméon Poisson. Number theory Other significant contributions include being the first to prove the Fermat polygonal number theorem. Complex functions Cauchy is most famous for his single-handed development of complex function theory. The first pivotal theorem proved by Cauchy, now known as Cauchy's integral theorem, was the following: where f(z) is a complex-valued function holomorphic on and within the non-self-intersecting closed curve C (contour) lying in the complex plane. The contour integral is taken along the contour C. The rudiments of this theorem can already be found in a paper that the 24-year-old Cauchy presented to the Académie des Sciences (then still called "First Class of the Institute") on August 11, 1814. In full form the theorem was given in 1825. The 1825 paper is seen by many as Cauchy's most important contribution to mathematics. In 1826 Cauchy gave a formal definition of a residue of a function. This concept concerns functions that have poles—isolated singularities, i.e., points where a function goes to positive or negative infinity. If the complex-valued function f(z) can be expanded in the neighborhood of a singularity a as where φ(z) is analytic (i.e., well-behaved without singularities), then f is said to have a pole of order n in the point a. If n = 1, the pole is called simple. The coefficient B1 is called by Cauchy the residue of function f at a. If f is non-singular at a then the residue of f is zero at a. Clearly, the residue is in the case of a simple pole equal to where we replaced B1 by the modern notation of the residue. In 1831, while in Turin, Cauchy submitted two papers to the Academy of Sciences of Turin. In the first he proposed the formula now known as Cauchy's integral formula, where f(z) is analytic on C and within the region bounded by the contour C and the complex number a is somewhere in this region. The contour integral is taken counter-clockwise. Clearly, the integrand has a simple pole at z = a. In the second paper he presented the residue theorem, where the sum is over all the n poles of f(z) on and within the contour C. These results of Cauchy's still form the core of complex function theory as it is taught today to physicists and electrical engineers. For quite some time, contemporaries of Cauchy ignored his theory, believing it to be too complicated. Only in the 1840s the theory started to get response, with Pierre Alphonse Laurent being the first mathematician besides Cauchy to make a substantial contribution (his work on what are now known as Laurent series, published in 1843). Cours d'Analyse In his book Cours d'Analyse Cauchy stressed the importance of rigor in analysis. Rigor in this case meant the rejection of the principle of Generality of algebra (of earlier authors such as Euler and Lagrange) and its replacement by geometry and infinitesimals. Judith Grabiner wrote Cauchy was "the man who taught rigorous analysis to all of Europe". The book is frequently noted as being the first place that inequalities, and arguments were introduced into calculus. Here Cauchy defined continuity as follows: The function f(x) is continuous with respect to x between the given limits if, between these limits, an infinitely small increment in the variable always produces an infinitely small increment in the function itself. M. Barany claims that the École mandated the inclusion of infinitesimal methods against Cauchy's better judgement. Gilain notes that when the portion of the curriculum devoted to Analyse Algébrique was reduced in 1825, Cauchy insisted on placing the topic of continuous functions (and therefore also infinitesimals) at the beginning of the Differential Calculus. Laugwitz (1989) and Benis-Sinaceur (1973) point out that Cauchy continued to use infinitesimals in his own research as late as 1853. Cauchy gave an explicit definition of an infinitesimal in terms of a sequence tending to zero. There has been a vast body of literature written about Cauchy's notion of "infinitesimally small quantities", arguing they lead from everything from the usual "epsilontic" definitions or to the notions of non-standard analysis. The consensus is that Cauchy omitted or left implicit the important ideas to make clear the precise meaning of the infinitely small quantities he used. Taylor's theorem He was the first to prove Taylor's theorem rigorously, establishing his well-known form of the remainder. He wrote a textbook (see the illustration) for his students at the École Polytechnique in which he developed the basic theorems of mathematical analysis as rigorously as possible. In this book he gave the necessary and sufficient condition for the existence of a limit in the form that is still taught. Also Cauchy's well-known test for absolute convergence stems from this book: Cauchy condensation test. In 1829 he defined for the first time a complex function of a complex variable in another textbook. In spite of these, Cauchy's own research papers often used intuitive, not rigorous, methods; thus one of his theorems was exposed to a "counter-example" by Abel, later fixed by the introduction of the notion of uniform continuity. Argument principle, stability In a paper published in 1855, two years before Cauchy's death, he discussed some theorems, one of which is similar to the "Principle of the argument" in many modern textbooks on complex analysis. In modern control theory textbooks, the Cauchy argument principle is quite frequently used to derive the Nyquist stability criterion, which can be used to predict the stability of negative feedback amplifier and negative feedback control systems. Thus Cauchy's work has a strong impact on both pure mathematics and practical engineering. Published works Cauchy was very productive, in number of papers second only to Leonhard Euler. It took almost a century to collect all his writings into 27 large volumes: (Paris : Gauthier-Villars et fils, 1882–1974) His greatest contributions to mathematical science are enveloped in the rigorous methods which he introduced; these are mainly embodied in his three great treatises: Le Calcul infinitésimal (1823) Leçons sur les applications de calcul infinitésimal; La géométrie (1826–1828) His other works include: Exercices d'analyse et de physique mathematique (Volume 1) Exercices d'analyse et de physique mathematique (Volume 2) Exercices d'analyse et de physique mathematique (Volume 3) Exercices d'analyse et de physique mathematique (Volume 4) (Paris: Bachelier, 1840–1847) Analyse algèbrique (Imprimerie Royale, 1821) Nouveaux exercices de mathématiques (Paris : Gauthier-Villars, 1895) Courses of mechanics (for the École Polytechnique) Higher algebra (for the ) Mathematical physics (for the Collège de France). Mémoire sur l'emploi des equations symboliques dans le calcul infinitésimal et dans le calcul aux différences finis CR Ac ad. Sci. Paris, t. XVII, 449–458 (1843) credited as originating the operational calculus. Politics and religious beliefs Augustin-Louis Cauchy grew up in the house of a staunch royalist. This made his father flee with the family to Arcueil during the French Revolution. Their life there during that time was apparently hard; Augustin-Louis's father, Louis François, spoke of living on rice, bread, and crackers during the period. A paragraph from an undated letter from Louis François to his mother in Rouen says: In any event, he inherited his father's staunch royalism and hence refused to take oaths to any government after the overthrow of Charles X. He was an equally staunch Catholic and a member of the Society of Saint Vincent de Paul. He also had links to the Society of Jesus and defended them at the Academy when it was politically unwise to do so. His zeal for his faith may have led to his caring for Charles Hermite during his illness and leading Hermite to become a faithful Catholic. It also inspired Cauchy to plead on behalf of the Irish during the Great Famine of Ireland. His royalism and religious zeal made him contentious, which caused difficulties with his colleagues. He felt that he was mistreated for his beliefs, but his opponents felt he intentionally provoked people by berating them over religious matters or by defending the Jesuits after they had been suppressed. Niels Henrik Abel called him a "bigoted Catholic" and added he was "mad and there is nothing that can be done about him", but at the same time praised him as a mathematician. Cauchy's views were widely unpopular among mathematicians and when Guglielmo Libri Carucci dalla Sommaja was made chair in mathematics before him he, and many others, felt his views were the cause. When Libri was accused of stealing books he was replaced by Joseph Liouville rather than Cauchy, which caused a rift between Liouville and Cauchy. Another dispute with political overtones concerned Jean-Marie Constant Duhamel and a claim on inelastic shocks. Cauchy was later shown, by Jean-Victor Poncelet, to be wrong. See also List of topics named after Augustin-Louis Cauchy Cauchy–Binet formula Cauchy boundary condition Cauchy's convergence test Cauchy (crater) Cauchy determinant Cauchy distribution Cauchy's equation Cauchy–Euler equation Cauchy's functional equation Cauchy horizon Cauchy formula for repeated integration Cauchy–Frobenius lemma Cauchy–Hadamard theorem Cauchy–Kovalevskaya theorem Cauchy momentum equation Cauchy–Peano theorem Cauchy principal value Cauchy problem Cauchy product Cauchy's radical test Cauchy–Rassias stability Cauchy–Riemann equations Cauchy–Schwarz inequality Cauchy sequence Cauchy surface Cauchy's theorem (geometry) Cauchy's theorem (group theory) Maclaurin–Cauchy test References Notes Citations Sources Further reading Boyer, C.: The concepts of the calculus. Hafner Publishing Company, 1949. . External links Augustin-Louis Cauchy – Œuvres complètes (in 2 series) Gallica-Math Augustin-Louis Cauchy – Cauchy's Life by Robin Hartshorne 1789 births 1857 deaths 19th-century French mathematicians Corps des ponts École des Ponts ParisTech alumni École Polytechnique alumni Fellows of the American Academy of Arts and Sciences Foreign Members of the Royal Society French Roman Catholics French geometers History of calculus Mathematical analysts Linear algebraists Members of the French Academy of Sciences Members of the Royal Swedish Academy of Sciences Recipients of the Pour le Mérite (civil class) Textbook writers Academic staff of the University of Turin

1847

https://en.wikipedia.org/wiki/Archimedean%20solid

Archimedean solid

In geometry, an Archimedean solid is one of 13 convex polyhedra whose faces are regular polygons and whose vertices are all symmetric to each other. They were first enumerated by Archimedes. The convex polyhedra with regular faces and symmetric vertices (the convex uniform polyhedra) include also the five Platonic solids (which are composed of only one type of polygon) and the two infinite families of prisms and antiprisms; these are not counted as Archimedean solids. The pseudorhombicuboctahedron has regular faces, and vertices that are symmetric in a weaker sense; it is also not generally counted as an Archimedean solid. The Archimedean solids are a subset of the Johnson solids, whose regular polygonal faces do not need to meet in identical vertices. In these polyhedra, the vertices are identical, in the sense that a global isometry of the entire solid takes any one vertex to any other. observed that a 14th polyhedron, the elongated square gyrobicupola (or pseudo-rhombicuboctahedron), meets a weaker definition of an Archimedean solid, in which "identical vertices" means merely that the parts of the polyhedron near any two vertices look the same (they have the same shapes of faces meeting around each vertex in the same order and forming the same angles). Grünbaum pointed out a frequent error in which authors define Archimedean solids using some form of this local definition but omit the 14th polyhedron. If only 13 polyhedra are to be listed, the definition must use global symmetries of the polyhedron rather than local neighborhoods. Prisms and antiprisms, whose symmetry groups are the dihedral groups, are generally not considered to be Archimedean solids, even though their faces are regular polygons and their symmetry groups act transitively on their vertices. Excluding these two infinite families, there are 13 Archimedean solids. All the Archimedean solids (but not the elongated square gyrobicupola) can be made via Wythoff constructions from the Platonic solids with tetrahedral, octahedral and icosahedral symmetry. Origin of name The Archimedean solids take their name from Archimedes, who discussed them in a now-lost work. Pappus refers to it, stating that Archimedes listed 13 polyhedra. During the Renaissance, artists and mathematicians valued pure forms with high symmetry, and by around 1620 Johannes Kepler had completed the rediscovery of the 13 polyhedra, as well as defining the prisms, antiprisms, and the non-convex solids known as Kepler-Poinsot polyhedra. (See for more information about the rediscovery of the Archimedean solids during the renaissance.) Kepler may have also found the elongated square gyrobicupola (pseudorhombicuboctahedron): at least, he once stated that there were 14 Archimedean solids. However, his published enumeration only includes the 13 uniform polyhedra, and the first clear statement of the pseudorhombicuboctahedron's existence was made in 1905, by Duncan Sommerville. Classification There are 13 Archimedean solids (not counting the elongated square gyrobicupola; 15 if the mirror images of two enantiomorphs, the snub cube and snub dodecahedron, are counted separately). Here the vertex configuration refers to the type of regular polygons that meet at any given vertex. For example, a vertex configuration of 4.6.8 means that a square, hexagon, and octagon meet at a vertex (with the order taken to be clockwise around the vertex). Some definitions of Semiregular polyhedron include one more figure, the Elongated square gyrobicupola or "pseudo-rhombicuboctahedron". Properties The number of vertices is 720° divided by the vertex angle defect. The cuboctahedron and icosidodecahedron are edge-uniform and are called quasi-regular. The duals of the Archimedean solids are called the Catalan solids. Together with the bipyramids and trapezohedra, these are the face-uniform solids with regular vertices. Chirality The snub cube and snub dodecahedron are known as chiral, as they come in a left-handed form (Latin: levomorph or laevomorph) and right-handed form (Latin: dextromorph). When something comes in multiple forms which are each other's three-dimensional mirror image, these forms may be called enantiomorphs. (This nomenclature is also used for the forms of certain chemical compounds.) Construction of Archimedean solids The different Archimedean and Platonic solids can be related to each other using a handful of general constructions. Starting with a Platonic solid, truncation involves cutting away of corners. To preserve symmetry, the cut is in a plane perpendicular to the line joining a corner to the center of the polyhedron and is the same for all corners. Depending on how much is truncated (see table below), different Platonic and Archimedean (and other) solids can be created. If the truncation is exactly deep enough such that each pair of faces from adjacent vertices shares exactly one point, it is known as a rectification. An expansion, or cantellation, involves moving each face away from the center (by the same distance so as to preserve the symmetry of the Platonic solid) and taking the convex hull. Expansion with twisting also involves rotating the faces, thus splitting each rectangle corresponding to an edge into two triangles by one of the diagonals of the rectangle. The last construction we use here is truncation of both corners and edges. Ignoring scaling, expansion can also be viewed as the rectification of the rectification. Likewise, the cantitruncation can be viewed as the truncation of the rectification. Note the duality between the cube and the octahedron, and between the dodecahedron and the icosahedron. Also, partially because the tetrahedron is self-dual, only one Archimedean solid that has at most tetrahedral symmetry. (All Platonic solids have at least tetrahedral symmetry, as tetrahedral symmetry is a symmetry operation of (i.e. is included in) octahedral and isohedral symmetries, which is demonstrated by the fact that an octahedron can be viewed as a rectified tetrahedron, and an icosahedron can be used as a snub tetrahedron.) Stereographic projection See also Aperiodic tiling Archimedean graph Icosahedral twins List of uniform polyhedra Prince Rupert's cube#Generalizations Quasicrystal Regular polyhedron Semiregular polyhedron Toroidal polyhedron Uniform polyhedron Citations Works cited . Reprinted in . . General references . Chapter 2 (Section 3–9) . External links Archimedean Solids by Eric W. Weisstein, Wolfram Demonstrations Project. Paper models of Archimedean Solids and Catalan Solids Free paper models(nets) of Archimedean solids The Uniform Polyhedra by Dr. R. Mäder Archimedean Solids at Visual Polyhedra by David I. McCooey Virtual Reality Polyhedra, The Encyclopedia of Polyhedra by George W. Hart Penultimate Modular Origami by James S. Plank Interactive 3D polyhedra in Java Solid Body Viewer is an interactive 3D polyhedron viewer which allows you to save the model in svg, stl or obj format. Stella: Polyhedron Navigator: Software used to create many of the images on this page. Paper Models of Archimedean (and other) Polyhedra

1851

https://en.wikipedia.org/wiki/Antiprism

Antiprism

In geometry, an antiprism or is a polyhedron composed of two parallel direct copies (not mirror images) of an polygon, connected by an alternating band of triangles. They are represented by the Conway notation . Antiprisms are a subclass of prismatoids, and are a (degenerate) type of snub polyhedron. Antiprisms are similar to prisms, except that the bases are twisted relatively to each other, and that the side faces (connecting the bases) are triangles, rather than quadrilaterals. The dual polyhedron of an -gonal antiprism is an -gonal trapezohedron. History At the intersection of modern-day graph theory and coding theory, the triangulation of a set of points have interested mathematicians since Isaac Newton, who fruitlessly sought a mathematical proof of the kissing number problem in 1694. The existence of antiprisms was discussed, and their name was coined by Johannes Kepler, though it is possible that they were previously known to Archimedes, as they satisfy the same conditions on faces and on vertices as the Archimedean solids. According to Ericson and Zinoviev, Harold Scott MacDonald Coxeter wrote at length on the topic, and was among the first to apply the mathematics of Victor Schlegel to this field. Knowledge in this field is "quite incomplete" and "was obtained fairly recently", i.e. in the 20th century. For example, as of 2001 it had been proven for only a limited number of non-trivial cases that the -gonal antiprism is the mathematically optimal arrangement of points in the sense of maximizing the minimum Euclidean distance between any two points on the set: in 1943 by László Fejes Tóth for 4 and 6 points (digonal and trigonal antiprisms, which are Platonic solids); in 1951 by Kurt Schütte and Bartel Leendert van der Waerden for 8 points (tetragonal antiprism, which is not a cube). The chemical structure of binary compounds has been remarked to be in the family of antiprisms; especially those of the family of boron hydrides (in 1975) and carboranes because they are isoelectronic. This is a mathematically real conclusion reached by studies of X-ray diffraction patterns, and stems from the 1971 work of Kenneth Wade, the nominative source for Wade's rules of polyhedral skeletal electron pair theory. Rare-earth metals such as the lanthanides form antiprismatic compounds with some of the halides or some of the iodides. The study of crystallography is useful here. Some lanthanides, when arranged in peculiar antiprismatic structures with chlorine and water, can form molecule-based magnets. Right antiprism For an antiprism with regular -gon bases, one usually considers the case where these two copies are twisted by an angle of degrees. The axis of a regular polygon is the line perpendicular to the polygon plane and lying in the polygon centre. For an antiprism with congruent regular -gon bases, twisted by an angle of degrees, more regularity is obtained if the bases have the same axis: are coaxial; i.e. (for non-coplanar bases): if the line connecting the base centers is perpendicular to the base planes. Then the antiprism is called a right antiprism, and its side faces are isosceles triangles. Uniform antiprism A uniform -antiprism has two congruent regular -gons as base faces, and equilateral triangles as side faces. Uniform antiprisms form an infinite class of vertex-transitive polyhedra, as do uniform prisms. For , we have the regular tetrahedron as a digonal antiprism (degenerate antiprism); for , the regular octahedron as a triangular antiprism (non-degenerate antiprism). Schlegel diagrams Cartesian coordinates Cartesian coordinates for the vertices of a right -antiprism (i.e. with regular -gon bases and isosceles triangle side faces) are: where ; if the -antiprism is uniform (i.e. if the triangles are equilateral), then: Volume and surface area Let be the edge-length of a uniform -gonal antiprism; then the volume is: and the surface area is: Furthermore, the volume of a right -gonal antiprism with side length of its bases and height is given by: Note that the volume of a right -gonal prism with the same and is: which is smaller than that of an antiprism. Related polyhedra There are an infinite set of truncated antiprisms, including a lower-symmetry form of the truncated octahedron (truncated triangular antiprism). These can be alternated to create snub antiprisms, two of which are Johnson solids, and the snub triangular antiprism is a lower symmetry form of the regular icosahedron. Four-dimensional antiprisms can be defined as having two dual polyhedra as parallel opposite faces, so that each three-dimensional face between them comes from two dual parts of the polyhedra: a vertex and a dual polygon, or two dual edges. Every three-dimensional polyhedron is combinatorially equivalent to one of the two opposite faces of a four-dimensional antiprism, constructed from its canonical polyhedron and its polar dual. However, there exist four-dimensional polyhedra that cannot be combined with their duals to form five-dimensional antiprisms. Symmetry The symmetry group of a right -antiprism (i.e. with regular bases and isosceles side faces) is of order , except in the cases of: : the regular tetrahedron, which has the larger symmetry group of order , which has three versions of as subgroups; : the regular octahedron, which has the larger symmetry group of order , which has four versions of as subgroups. The symmetry group contains inversion if and only if is odd. The rotation group is of order , except in the cases of: : the regular tetrahedron, which has the larger rotation group of order , which has three versions of as subgroups; : the regular octahedron, which has the larger rotation group of order , which has four versions of as subgroups. Note: The right -antiprisms have congruent regular -gon bases and congruent isosceles triangle side faces, thus have the same (dihedral) symmetry group as the uniform -antiprism, for . Star antiprism Uniform star antiprisms are named by their star polygon bases, {p/q}, and exist in prograde and in retrograde (crossed) solutions. Crossed forms have intersecting vertex figures, and are denoted by "inverted" fractions: p/(p – q) instead of p/q; example: 5/3 instead of 5/2. A right star antiprism has two congruent coaxial regular convex or star polygon base faces, and 2n isosceles triangle side faces. Any star antiprism with regular convex or star polygon bases can be made a right star antiprism (by translating and/or twisting one of its bases, if necessary). In the retrograde forms but not in the prograde forms, the triangles joining the convex or star bases intersect the axis of rotational symmetry. Thus: Retrograde star antiprisms with regular convex polygon bases cannot have all equal edge lengths, so cannot be uniform. "Exception": a retrograde star antiprism with equilateral triangle bases (vertex configuration: 3.3/2.3.3) can be uniform; but then, it has the appearance of an equilateral triangle: it is a degenerate star polyhedron. Similarly, some retrograde star antiprisms with regular star polygon bases cannot have all equal edge lengths, so cannot be uniform. Example: a retrograde star antiprism with regular star 7/5-gon bases (vertex configuration: 3.3.3.7/5) cannot be uniform. Also, star antiprism compounds with regular star p/q-gon bases can be constructed if p and q have common factors. Example: a star 10/4-antiprism is the compound of two star 5/2-antiprisms. See also Apeirogonal antiprism Grand antiprism – a four-dimensional polytope One World Trade Center, a building consisting primarily of an elongated square antiprism Skew polygon References Chapter 2: Archimedean polyhedra, prisms and antiprisms Nonconvex Prisms and Antiprisms Paper models of prisms and antiprisms Uniform polyhedra Prismatoid polyhedra Topological graph theory Graph drawing Coxeter groups Elementary geometry Polyhedra Polytopes Triangulation (geometry) Knot invariants

1857

https://en.wikipedia.org/wiki/Approval%20voting

Approval voting

Approval voting is an electoral system in which voters can select many candidates instead of selecting only one candidate. Description Approval voting ballots show a list of all the candidates running and each voter indicates support for as many candidates as they see fit. Final tallies show how many votes each candidate received, and the winner is the candidate with the most support. Effect on elections Approval voting advocates Steven Brams and Dudley R. Herschbach predict that Approval should increase voter participation, prevent minor-party candidates from being spoilers, and reduce negative campaigning. One study showed that Approval would not have chosen the same two winners as plurality voting (Chirac and Le Pen) in the first round of the 2002 French presidential election; it instead would have chosen Chirac and Jospin as the top two candidates to proceed to the runoff. Le Pen lost by an overwhelming margin in the runoff, 82.2% to 17.8%, a sign that the true top two candidates had not been found. In the approval voting survey primary, Chirac took first place with 36.7%, compared to Jospin at 32.9%. Le Pen, in that study, received 25.1% and so would not have made the cut to the second round. In the real primary election, the top three were Chirac, 19.9%, Le Pen, 16.9%, and Jospin, 16.2%. A study of various "evaluative voting" methods (Approval and score voting) during the 2012 French presidential election showed that "unifying" candidates tended to do better, and polarizing candidates did worse, as compared to under plurality voting. A generalized version of the Burr dilemma applies to Approval when two candidates are appealing to the same subset of voters. Although Approval differs from the voting system used in the Burr dilemma, Approval can still leave candidates and voters with the generalized dilemma of whether to compete or cooperate. But, Approval satisfies the favorite betrayal criterion, which means that it is always safe for a voter to give their true favorite maximum support. While in the modern era there have been relatively few competitive Approval elections where tactical voting is more likely, Brams argues that Approval usually elects Condorcet winners in practice. Operational impacts Simple to tally—Approval ballots can be counted by some existing machines designed for plurality elections, as ballots are cast, so that final tallies are immediately available after the election, with relatively few if any upgrades to equipment. Just one round—Approval can remove the need for multiple rounds of voting, such as a primary or a run-off, simplifying the election process. Usage Current The Latvian parliament uses approval voting within open list proportional representation. In 2018, Fargo, North Dakota, passed a local ballot initiative adopting Approval for the city's local elections, and it was used to elect officials in June 2020, becoming the first United States city and jurisdiction to adopt Approval. In November 2020, St. Louis, Missouri, passed Proposition D to authorize a variant of Approval (as unified primary) for municipal offices. History Robert J. Weber coined the term "Approval Voting" in 1971. It was more fully published in 1978 by political scientist Steven Brams and mathematician Peter Fishburn. Historically, several voting methods that incorporate aspects of Approval have been used: Approval was used for papal conclaves between 1294 and 1621, with an average of about forty cardinals engaging in repeated rounds of voting until one candidate was listed on at least two-thirds of ballots. In the 13th through 18th centuries, the Republic of Venice elected the Doge of Venice using a multi-stage process that featured random selection and voting that allowed approval of multiple candidates and required a supermajority. According to Steven J. Brams, Approval was used for unspecified elections in 19th century England. The selection of the Secretary-General of the United Nations has involved "straw poll" rounds of approval polling to help discover and build a consensus before a formal vote is held in the Security Council. The United Nations Secretary-General selection, 2006 indicated that South Korean Foreign Minister Ban Ki-moon was the only candidate to be acceptable to all five permanent members of the Security Council, which led to the withdrawal of India's Shashi Tharoor, who had the highest overall approval rate. Approval was used in Greek legislative elections from 1864 to 1923, when it was replaced with proportional representation. Political organizations and jurisdictions Approval has been used in privately administered nomination contests by the Independent Party of Oregon in 2011, 2012, 2014, and 2016. Oregon is a fusion voting state, and the party has cross-nominated legislators and statewide officeholders using this method; its 2016 presidential preference primary did not identify a potential nominee due to no candidate earning more than 32% support. The party switched to using STAR voting in 2020. It is also used in internal elections by the American Solidarity Party; the Green Parties of Texas and Ohio; the Libertarian National Committee; the Libertarian parties of Texas, Colorado, Arizona, and New York; the US Modern Whig Party, Alliance 90/The Greens in Germany; and the Czech and German Pirate Party. In 2018, Fargo, North Dakota passed a ballot initiative adopting Approval for local elections, becoming the first U.S. city and jurisdiction to adopt Approval. (Previously in 2015, a Fargo city commissioner election had suffered from six-way vote-splitting, resulting in a candidate winning with an unconvincing 22% plurality of the vote.) The first election was held June 9, 2020, selecting two city commissioners, from seven candidates on the ballot. Both winners received over 50% approval, with an average 2.3 approvals per ballot, and 62% of voters supported the change to Approval in a poll. A poll by opponents of Approval was conducted to test whether voters had in fact voted strategically according to the Burr dilemma. They found that 30% of voters who bullet voted did so for strategic reasons, while 57% did so because it was their sincere opinion. Fargo's second Approval election took place in June 2022, for mayor and city commission. The incumbent mayor was re-elected with an estimated 65% approval, with voters expressing 1.6 approvals per ballot. In 2020, St. Louis, Missouri passed an initiative to adopt Approval followed by a top-two runoff (see Unified primary), thus becoming the second U.S. city to adopt Approval and the first to use a variant of it. The first such primary was held in March 2021, with voters expressing 1.1 to 1.6 approvals per ballot, in races with more than two candidates. Other organizations The idea of approval was adopted by X. Hu and Lloyd Shapley in 2003 in studying authority distribution in organizations. Approval has been adopted by several societies: the Society for Social Choice and Welfare (1992), Mathematical Association of America (1986), the American Mathematical Society, the Institute of Management Sciences (1987) (now the Institute for Operations Research and the Management Sciences), the American Statistical Association (1987), and the Institute of Electrical and Electronics Engineers (1987). The IEEE board in 2002 rescinded its decision to use Approval. IEEE Executive Director Daniel J. Senese stated that Approval was abandoned because "few of our members were using it and it was felt that it was no longer needed." Because none of these associations report results to their members and the public, it is difficult to evaluate Senese's claim and whether it is also true of other associations; Steven Brams' analysis of the 5-candidate 1987 Mathematical Association of America presidential election shows that 79% of voters cast a ballot for one candidate, 16% for 2 candidates, 5% for 3, and 1% for 4, with the winner earning the approval of 1,267 (32%) of 3,924 voters. Approval also can be used in social scenarios as a fairer, but still quick system compared to a First-Past-The-Post equivalent, being able to avoid a spoiler effect while being very quick to calculate. Strategic voting Overview Approval voting allows voters to select all the candidates whom they consider to be reasonable choices. Strategic Approval differs from ranked voting (aka preferential voting) methods where voters might reverse the preference order of two options, which if done on a larger scale can cause an unpopular candidate to win. Strategic Approval, with more than two options, involves the voter changing their approval threshold. The voter decides which options to give the same rating, even if they were to have a preference order between them. This leaves a tactical concern any voter has for approving their second-favorite candidate, in the case that there are three or more candidates. Approving their second-favorite means the voter harms their favorite candidate's chance to win. Not approving their second-favorite means the voter helps the candidate they least desire to beat their second-favorite and perhaps win. Approval allows for bullet voting and compromising, while it is immune to push-over and burying. Bullet voting occurs when a voter approves only candidate "a" instead of both "a" and "b" for the reason that voting for "b" can cause "a" to lose. The voter would be satisfied with either "a" or "b" but has a moderate preference for "a". Were "b" to win, this hypothetical voter would still be satisfied. If supporters of both "a" and "b" do this, it could cause candidate "c" to win. This creates the "chicken dilemma", as supporters of "a" and "b" are playing chicken as to which will stop strategic voting first, before both of these candidates lose. Compromising occurs when a voter approves an additional candidate who is otherwise considered unacceptable to the voter to prevent an even worse alternative from winning. Sincere voting Approval experts describe sincere votes as those "... that directly reflect the true preferences of a voter, i.e., that do not report preferences 'falsely. They also give a specific definition of a sincere approval vote in terms of the voter's ordinal preferences as being any vote that, if it votes for one candidate, it also votes for any more preferred candidate. This definition allows a sincere vote to treat strictly preferred candidates the same, ensuring that every voter has at least one sincere vote. The definition also allows a sincere vote to treat equally preferred candidates differently. When there are two or more candidates, every voter has at least three sincere approval votes to choose from. Two of those sincere approval votes do not distinguish between any of the candidates: vote for none of the candidates and vote for all of the candidates. When there are three or more candidates, every voter has more than one sincere approval vote that distinguishes between the candidates. Examples Based on the definition above, if there are four candidates, A, B, C, and D, and a voter has a strict preference order, preferring A to B to C to D, then the following are the voter's possible sincere approval votes: vote for A, B, C, and D vote for A, B, and C vote for A and B vote for A vote for no candidates If the voter instead equally prefers B and C, while A is still the most preferred candidate and D is the least preferred candidate, then all of the above votes are sincere and the following combination is also a sincere vote: vote for A and C The decision between the above ballots is equivalent to deciding an arbitrary "approval cutoff." All candidates preferred to the cutoff are approved, all candidates less preferred are not approved, and any candidates equal to the cutoff may be approved or not arbitrarily. Sincere strategy with ordinal preferences A sincere voter with multiple options for voting sincerely still has to choose which sincere vote to use. Voting strategy is a way to make that choice, in which case strategic Approval includes sincere voting, rather than being an alternative to it. This differs from other voting systems that typically have a unique sincere vote for a voter. When there are three or more candidates, the winner of an Approval election can change, depending on which sincere votes are used. In some cases, Approval can sincerely elect any one of the candidates, including a Condorcet winner and a Condorcet loser, without the voter preferences changing. To the extent that electing a Condorcet winner and not electing a Condorcet loser is considered desirable outcomes for a voting system, Approval can be considered vulnerable to sincere, strategic voting. In one sense, conditions where this can happen are robust and are not isolated cases. On the other hand, the variety of possible outcomes has also been portrayed as a virtue of Approval, representing the flexibility and responsiveness of Approval, not just to voter ordinal preferences, but cardinal utilities as well. Dichotomous preferences Approval avoids the issue of multiple sincere votes in special cases when voters have dichotomous preferences. For a voter with dichotomous preferences, Approval is strategy-proof (also known as strategy-free). When all voters have dichotomous preferences and vote the sincere, strategy-proof vote, Approval is guaranteed to elect the Condorcet winner, if one exists. However, having dichotomous preferences when there are three or more candidates is not typical. It is an unlikely situation for all voters to have dichotomous preferences when there are more than a few voters. Having dichotomous preferences means that a voter has bi-level preferences for the candidates. All of the candidates are divided into two groups such that the voter is indifferent between any two candidates in the same group and any candidate in the top-level group is preferred to any candidate in the bottom-level group. A voter that has strict preferences between three candidates—prefers A to B and B to C—does not have dichotomous preferences. Being strategy-proof for a voter means that there is a unique way for the voter to vote that is a strategically best way to vote, regardless of how others vote. In Approval, the strategy-proof vote, if it exists, is a sincere vote. Approval threshold Another way to deal with multiple sincere votes is to augment the ordinal preference model with an approval or acceptance threshold. An approval threshold divides all of the candidates into two sets, those the voter approves of and those the voter does not approve of. A voter can approve of more than one candidate and still prefer one approved candidate to another approved candidate. Acceptance thresholds are similar. With such a threshold, a voter simply votes for every candidate that meets or exceeds the threshold. With threshold voting, it is still possible to not elect the Condorcet winner and instead elect the Condorcet loser when they both exist. However, according to Steven Brams, this represents a strength rather than a weakness of Approval. Without providing specifics, he argues that the pragmatic judgements of voters about which candidates are acceptable should take precedence over the Condorcet criterion and other social choice criteria. Strategy with cardinal utilities Voting strategy under approval is guided by two competing features of Approval. On the one hand, Approval fails the later-no-harm criterion, so voting for a candidate can cause that candidate to win instead of a candidate more preferred by that voter. On the other hand, Approval satisfies the monotonicity criterion, so not voting for a candidate can never help that candidate win, but can cause that candidate to lose to a less preferred candidate. Either way, the voter can risk getting a less preferred election winner. A voter can balance the risk-benefit trade-offs by considering the voter's cardinal utilities, particularly via the von Neumann–Morgenstern utility theorem, and the probabilities of how others vote. A rational voter model described by Myerson and Weber specifies an Approval strategy that votes for those candidates that have a positive prospective rating. This strategy is optimal in the sense that it maximizes the voter's expected utility, subject to the constraints of the model and provided the number of other voters is sufficiently large. An optimal approval vote always votes for the most preferred candidate and not for the least preferred candidate. However, an optimal vote can require voting for a candidate and not voting for a more preferred candidate if there 4 candidates or more. Other strategies are also available and coincide with the optimal strategy in special situations. For example: Vote for the candidates that have above average utility. This strategy coincides with the optimal strategy if the voter thinks that all pairwise ties are equally likely Vote for any candidate that is more preferred than the expected winner and also vote for the expected winner if the expected winner is more preferred than the expected runner-up. This strategy coincides with the optimal strategy if there are three or fewer candidates or if the pivot probability for a tie between the expected winner and expected runner-up is sufficiently large compared to the other pivot probabilities. This strategy, if used by all voters implies at equilibrium the election of the Condorcet winner whenever it exists. Vote for the most preferred candidate only. This strategy coincides with the optimal strategy when there is only one candidate with a positive prospective rating. Another strategy is to vote for the top half of the candidates, the candidates that have an above-median utility. When the voter thinks that others are balancing their votes randomly and evenly, the strategy maximizes the voter's power or efficacy, meaning that it maximizes the probability that the voter will make a difference in deciding which candidate wins. Optimal strategic Approval fails to satisfy the Condorcet criterion and can elect a Condorcet loser. Strategic Approval can guarantee electing the Condorcet winner in some special circumstances. For example, if all voters are rational and cast a strategically optimal vote based on a common knowledge of how all the other voters vote except for small-probability, statistically independent errors in recording the votes, then the winner will be the Condorcet winner, if one exists. Strategy examples In the example election described here, assume that the voters in each faction share the following von Neumann–Morgenstern utilities, fitted to the interval between 0 and 100. The utilities are consistent with the rankings given earlier and reflect a strong preference each faction has for choosing its city, compared to weaker preferences for other factors such as the distance to the other cities. Using these utilities, voters choose their optimal strategic votes based on what they think the various pivot probabilities are for pairwise ties. In each of the scenarios summarized below, all voters share a common set of pivot probabilities. In the first scenario, voters all choose their votes based on the assumption that all pairwise ties are equally likely. As a result, they vote for any candidate with an above-average utility. Most voters vote for only their first choice. Only the Knoxville faction also votes for its second choice, Chattanooga. As a result, the winner is Memphis, the Condorcet loser, with Chattanooga coming in second place. In this scenario, the winner has minority approval (more voters disapproved than approved) and all the others had even less support, reflecting the position that no choice gave an above-average utility to a majority of voters. In the second scenario, all of the voters expect that Memphis is the likely winner, that Chattanooga is the likely runner-up, and that the pivot probability for a Memphis-Chattanooga tie is much larger than the pivot probabilities of any other pair-wise ties. As a result, each voter votes for any candidate they prefer more than the leading candidate, and also vote for the leading candidate if they prefer that candidate more than the expected runner-up. Each remaining scenario follows a similar pattern of expectations and voting strategies. In the second scenario, there is a three-way tie for first place. This happens because the expected winner, Memphis, was the Condorcet loser and was also ranked last by any voter that did not rank it first. Only in the last scenario does the actual winner and runner-up match the expected winner and runner-up. As a result, this can be considered a stable strategic voting scenario. In the language of game theory, this is an "equilibrium." In this scenario, the winner is also the Condorcet winner. Dichotomous cutoff As this voting method is cardinal rather than ordinal, it is possible to model voters in a way that does not simplify to an ordinal method. Modelling voters with a 'dichotomous cutoff' assumes a voter has an immovable approval cutoff, while having meaningful cardinal preferences. This means that rather than voting for their top 3 candidates, or all candidates above the average approval (which may result in their vote changing if one candidate drops out, resulting in a system that does not satisfy IIA), they instead vote for all candidates above a certain approval 'cutoff' that they have decided. This cutoff does not change, regardless of which and how many candidates are running, so when all available alternatives are either above or below the cutoff, the voter votes for all or none of the candidates, despite preferring some over others. This could be imagined to reflect a case where many voters become disenfranchised and apathetic if they see no candidates they approve of. In a case such as this, many voters may have an internal cutoff, and would not simply vote for their top 3, or the above average candidates, although that is not to say that it is necessarily entirely immovable. For example, in this scenario, voters are voting for candidates with approval above 50% (bold signifies that the voters voted for the candidate): C wins with 65% of the voters' approval, beating B with 60%, D with 40% and A with 35% If voters' threshold for receiving a vote is that the candidate has an above average approval, or they vote for their two most approved of candidates, this is not a dichotomous cutoff, as this can change if candidates drop out. On the other hand, if voters' threshold for receiving a vote is fixed (say 50%), this is a dichotomous cutoff, and satisfies IIA as shown below: B now wins with 60%, beating C with 55% and D with 40% With dichotomous cutoff, C still wins. B now wins with 70%, beating C and A with 65% With dichotomous cutoff, C still wins. Compliance with voting system criteria Most of the mathematical criteria by which voting systems are compared were formulated for voters with ordinal preferences. In this case, approval voting requires voters to make an additional decision of where to put their approval cutoff (see examples above). Depending on how this decision is made, Approval satisfies different sets of criteria. There is no ultimate authority on which criteria should be considered, but the following are criteria that many voting theorists accept and consider desirable: Unrestricted domain—A voter may have any preference ordering among the alternatives. Non-dictatorship—There does not exist a single voter whose preference for the alternatives always determines the outcome regardless of other voters' preferences. Pareto efficiency—If every voter prefers candidate A to all other candidates, then A must be elected. (from Arrow's impossibility theorem) Majority criterion—If there exists a majority that ranks (or rates) a single candidate higher than all other candidates, does that candidate always win? Monotonicity criterion—Is it impossible to cause a winning candidate to lose by ranking that candidate higher, or to cause a losing candidate to win by ranking that candidate lower? Consistency criterion—If the electorate is divided in two and a choice wins in both parts, does it always win overall? Participation criterion—Is voting honestly always better than not voting at all? (This is grouped with the distinct but similar Consistency Criterion in the table below.) Condorcet criterion—If a candidate beats every other candidate in pairwise comparison, does that candidate always win? (This implies the majority criterion, above) Condorcet loser criterion—If a candidate loses to every other candidate in pairwise comparison, does that candidate always lose? Independence of irrelevant alternatives—Is the outcome the same after adding or removing non-winning candidates? Independence of clones criterion—Is the outcome the same if candidates identical to existing candidates are added? Reversal symmetry—If individual preferences of each voter are inverted, does the original winner never win? Approval satisfies the mutual majority criterion and Smith criterion when voters' preferences are dichotomous; this is because the winner will be someone that the most voters prefer above all others, or that ties with other candidates but the group of tied candidates is preferred by more voters than any candidate not in the group. See also Some variants and generalizations of approval voting are: Multiwinner approval voting — multiple candidates may be elected, instead of just one. Fractional approval voting — the election outcome is a distribution - assigning a fraction to each candidate. Score voting (also called range voting) — is simply approval voting where voters can give a wider range of scores than 0 or 1 (e.g. 0-5 or 0-7). Combined approval voting — form of score voting with three levels that uses a scale of (-1, 0, +1) or (0, 1, 2). D21 – Janeček method — limited to two approval and one negative vote per voter. Notes References Sources External links Approval Voting Article by The Center for Election Science Could Approval Voting Prevent Electoral Disaster? Video by Big Think Approval Voting on Dichotomous Preferences Article by Marc Vorsatz. Scoring Rules on Dichotomous Preferences Article by Marc Vorsatz. The Arithmetic of Voting article by Guy Ottewell Critical Strategies Under Approval Voting: Who Gets Ruled In And Ruled Out Article by Steven J. Brams and M. Remzi Sanver. Quick and Easy Voting for Normal People YouTube video Single-winner electoral systems Cardinal electoral systems Monotonic electoral systems Approval voting Rating systems

1859

https://en.wikipedia.org/wiki/Arizona%20State%20University

Arizona State University

Arizona State University (Arizona State or ASU) is a public research university in the Phoenix metropolitan area. Founded in 1885 by the 13th Arizona Territorial Legislature, ASU is one of the largest public universities by enrollment in the United States. One of three universities governed by the Arizona Board of Regents, ASU is a member of the Association of American Universities and classified among "R1: Doctoral Universities – Very High Research Activity". ASU has nearly 145,000 students attending classes, with more than 62,000 students attending online, and 112,000 undergraduates and nearly 30,000 postgraduates across its five campuses and four regional learning centers throughout Arizona. ASU offers 350 degree options from its 17 colleges and more than 170 cross-discipline centers and institutes for undergraduates students, as well as more than 400 graduate degree and certificate programs. The Arizona State Sun Devils compete in 26 varsity-level sports in the NCAA Division I Pac-12 Conference and is home to over 1,100 registered student organizations. Sun Devil teams have won 165 national championships, including 24 NCAA trophies. 179 Sun Devils have made Olympic teams, winning 60 Olympic medals: 25 gold, 12 silver, and 23 bronze. ASU reported that its faculty of more than 5,000 scholars included 5 Nobel laureates, 10 MacArthur Fellows, 10 Pulitzer Prize winners, 10 National Academy of Engineering members, 23 National Academy of Sciences members, 26 American Academy of Arts and Sciences members, 41 Guggenheim fellows, 157 National Endowment for the Humanities fellows, and 281 Fulbright Program American Scholars. History 1885–1929 Arizona State University was established as the Territorial Normal School at Tempe on March 12, 1885, when the 13th Arizona Territorial Legislature passed an act to create a normal school to train teachers for the Arizona Territory. The campus consisted of a single, four-room schoolhouse on a 20-acre plot largely donated by Tempe residents George and Martha Wilson. Classes began with 33 students on February 8, 1886. The curriculum evolved over the years and the name was changed several times; the institution was also known as Tempe Normal School of Arizona (1889–1903), Tempe Normal School (1903–1925), Tempe State Teachers College (1925–1929), Arizona State Teachers College (1929–1945), Arizona State College (1945–1958) and, by a 2–1 margin of the state's voters, Arizona State University in 1958. In 1923, the school stopped offering high school courses and added a high school diploma to the admissions requirements. In 1925, the school became the Tempe State Teachers College and offered four-year Bachelor of Education degrees as well as two-year teaching certificates. In 1929, the 9th Arizona State Legislature authorized Bachelor of Arts in Education degrees as well, and the school was renamed the Arizona State Teachers College. Under the 30-year tenure of president Arthur John Matthews (1900–1930), the school was given all-college student status. The first dormitories built in the state were constructed under his supervision in 1902. Of the 18 buildings constructed while Matthews was president, six are still in use. Matthews envisioned an "evergreen campus", with many shrubs brought to the campus, and implemented the planting of 110 Mexican Fan Palms on what is now known as Palm Walk, a century-old landmark of the Tempe campus. During the Great Depression, Ralph Waldo Swetman was hired to succeed President Matthews, coming to Arizona State Teachers College in 1930 from Humboldt State Teachers College where he had served as president. He served a three-year term, during which he focused on improving teacher-training programs. During his tenure, enrollment at the college doubled, topping the 1,000 mark for the first time. Matthews also conceived of a self-supported summer session at the school at Arizona State Teachers College, a first for the school. 1930–1989 In 1933, Grady Gammage, then president of Arizona State Teachers College at Flagstaff, became president of Arizona State Teachers College at Tempe, beginning a tenure that would last for nearly 28 years, second only to Swetman's 30 years at the college's helm. Like President Arthur John Matthews before him, Gammage oversaw the construction of several buildings on the Tempe campus. He also guided the development of the university's graduate programs; the first Master of Arts in Education was awarded in 1938, the first Doctor of Education degree in 1954 and 10 non-teaching master's degrees were approved by the Arizona Board of Regents in 1956. During his presidency, the school's name was changed to Arizona State College in 1945, and finally to Arizona State University in 1958. At the time, two other names were considered: Tempe University and State University at Tempe. Among Gammage's greatest achievements in Tempe was the Frank Lloyd Wright-designed construction of what is Grady Gammage Memorial Auditorium/ASU Gammage. One of the university's hallmark buildings, ASU Gammage was completed in 1964, five years after the president's (and Wright's) death. Gammage was succeeded by Harold D. Richardson, who had served the school earlier in a variety of roles beginning in 1939, including director of graduate studies, college registrar, dean of instruction, dean of the College of Education and academic vice president. Although filling the role of acting president of the university for just nine months (Dec. 1959 to Sept. 1960), Richardson laid the groundwork for the future recruitment and appointment of well-credentialed research science faculty. By the 1960s, under G. Homer Durham, the university's 11th president, ASU began to expand its curriculum by establishing several new colleges and, in 1961, the Arizona Board of Regents authorized doctoral degree programs in six fields, including Doctor of Philosophy. By the end of his nine-year tenure, ASU had more than doubled enrollment, reporting 23,000 in 1969. The next three presidents—Harry K. Newburn (1969–71), John W. Schwada (1971–81) and J. Russell Nelson (1981–89), including and Interim President Richard Peck (1989)—led the university to increased academic stature, the establishment of the ASU West campus in 1984 and its subsequent construction in 1986, a focus on computer-assisted learning and research, and rising enrollment. 1990–present Under the leadership of Lattie F. Coor, president from 1990 to 2002, ASU grew through the creation of the Polytechnic campus and extended education sites. Increased commitment to diversity, quality in undergraduate education, research, and economic development occurred over his 12-year tenure. Part of Coor's legacy to the university was a successful fundraising campaign: through private donations, more than $500 million was invested in areas that would significantly impact the future of ASU. Among the campaign's achievements were the naming and endowing of Barrett, The Honors College, and the Herberger Institute for Design and the Arts; the creation of many new endowed faculty positions; and hundreds of new scholarships and fellowships. In 2002, Michael M. Crow became the university's 16th president. At his inauguration, he outlined his vision for transforming ASU into a "New American University"—one that would be open and inclusive, and set a goal for the university to meet Association of American Universities criteria and to become a member. Crow initiated the idea of transforming ASU into "One university in many places"—a single institution comprising several campuses, sharing students, faculty, staff and accreditation. Subsequent reorganizations combined academic departments, consolidated colleges and schools, and reduced staff and administration as the university expanded its West and Polytechnic campuses. ASU's Downtown Phoenix campus was also expanded, with several colleges and schools relocating there. The university established learning centers throughout the state, including the ASU Colleges at Lake Havasu City and programs in Thatcher, Yuma, and Tucson. Students at these centers can choose from several ASU degree and certificate programs. During Crow's tenure, and aided by hundreds of millions of dollars in donations, ASU began a years-long research facility capital building effort that led to the establishment of the Biodesign Institute at Arizona State University, the Julie Ann Wrigley Global Institute of Sustainability, and several large interdisciplinary research buildings. Along with the research facilities, the university faculty was expanded, including the addition of five Nobel Laureates. Since 2002, the university's research expenditures have tripled and more than 1.5 million square feet of space has been added to the university's research facilities. The economic downturn that began in 2008 took a particularly hard toll on Arizona, resulting in large cuts to ASU's budget. In response to these cuts, ASU capped enrollment, closed some four dozen academic programs, combined academic departments, consolidated colleges and schools, and reduced university faculty, staff and administrators; with an economic recovery underway in 2011, however, the university continued its campaign to expand the West and Polytechnic Campuses, and establish a low-cost, teaching-focused extension campus in Lake Havasu City. As of 2011, an article in Slate reported that, "the bottom line looks good", noting that: On May 1, 2014, ASU was listed as one of fifty-five higher education institutions under investigation by the Office of Civil Rights "for possible violations of federal law over the handling of sexual violence and harassment complaints" by Barack Obama's White House Task Force To Protect Students from Sexual Assault. The publicly announced investigation followed two Title IX suits. In July 2014, a group of at least nine current and former students who alleged they were harassed or assaulted asked the federal investigation be expanded. In August 2014 ASU president Michael Crow appointed a task force comprising faculty and staff, students, and members of the university police force to review the university's efforts to address sexual violence. Crow accepted the recommendations of the task force in November 2014. In 2015, the Thunderbird School of Global Management became the fifth ASU campus, as the Thunderbird School of Global Management at ASU. Partnerships for education and research with Mayo Clinic established collaborative degree programs in health care and law, and shared administrator positions, laboratories and classes at the Mayo Clinic Arizona campus. The Beus Center for Law and Society, the new home of ASU's Sandra Day O'Connor College of Law, opened in fall 2016 on the Downtown Phoenix campus, relocating faculty and students from the Tempe campus to the state capital. Organization and administration The Arizona Board of Regents governs Arizona State University as well as the state's other public universities; University of Arizona and Northern Arizona University. The Board of Regents is composed of 12 members including 11 who are voting members, and one non-voting member. Members of the board include the state governor and superintendent of public instruction acting as ex-officio members, eight volunteer Regents members with eight-year terms who are appointed by the governor, and two student regents, each with two-year terms, and each serving a one-year term as non-voting apprentices. ABOR provides policy guidance to the state universities of Arizona. ASU has four campuses in metropolitan Phoenix, Arizona, including the Tempe campus in Tempe; the West campus in Glendale; the Downtown Phoenix campus; and the Polytechnic campus in Mesa. ASU also offers courses and degrees through ASU Online and at the ASU Colleges at Lake Havasu City in western Arizona, and offers regional learning programs in Thatcher, Yuma and Tucson. The Arizona Board of Regents appoints and elects the president of the university, who is considered the institution's chief executive officer and the chief budget officer. The president executes measures enacted by the Board of Regents, controls the university's property, and acts as the university's official representative to the Board of Regents. The chief executive officer is assisted through the administration of the institution by the provost, vice presidents, deans, faculty, directors, department chairs, and other officers. The president also selects and appoints administrative officers and general counsels. The 16th ASU president is Michael M. Crow, who has served since July 1, 2002. Campuses and locations Academic programs are spread across four distinct campuses in the Phoenix Metropolitan Area; unlike most multi-campus institutions, however, ASU describes itself as "one university in many places", inferring there is "not a system with separate campuses, and not one main campus with branch campuses." The university considers each campus "distinctive" and academically focused on certain aspects of the overall university mission. The Tempe campus is the university's research and graduate school center. Undergraduate studies on the Tempe campus are research-based programs that prepare students for graduate school, professional school, or employment. The Polytechnic campus is designed with an emphasis on professional and technological programs for direct workforce preparation. The Polytechnic campus is the site of many of the university's simulators and laboratories dedicated for project-based learning. The West campus is focused on interdisciplinary degrees and the liberal arts, while maintaining professional programs with a direct impact on the community and society. The Downtown Phoenix campus focuses on direct urban and public programs such as nursing, public policy, criminal justice, mass communication, and journalism. ASU recently relocated some nursing and health related programs to its new ASU-Mayo Medical School campus. Inter-campus shuttles and light rail allow students and faculty to easily travel between the campuses. In addition to the physical campuses, ASU's "virtual campus" at the university's SkySong Innovation Center, provides online and extended education. The Arizona Board of Regents reports the ASU facilities inventory totals more than 23 million gross square feet. Tempe campus ASU's Tempe campus is in downtown Tempe, Arizona, about east of downtown Phoenix. The campus is considered urban, and is approximately in size. It is arranged around broad pedestrian malls and is completely encompassed by an arboretum. The Tempe campus is also the largest of ASU's campuses, with more than 70,000 students enrolled in at least one class on campus in fall 2017. The campus is considered to range from the streets Rural Road on the east to Mill Avenue on the west, and Apache Boulevard on the south to Rio Salado Parkway on the north. The Tempe campus is ASU's original campus, and Old Main, the oldest building on campus, still stands. Today's university and the Tempe campus were founded as the Territorial Normal School when first constructed, and was originally a teachers college. There are many notable landmarks on campus, including Grady Gammage Memorial Auditorium, designed by Frank Lloyd Wright; Palm Walk, which is lined by 111 palm trees; Charles Trumbull Hayden Library; the University Club building; Margaret Gisolo Dance Theatre; Arizona State University Art Museum; and University Bridge. Furthermore, the Tempe campus is home to Barrett, The Honors College. In addition, the campus has an extensive public art collection; It was named "the single most impressive venue for contemporary art in Arizona" by Art in America magazine. Against the northwest edge of campus is the Mill Avenue district (part of downtown Tempe), which has a college atmosphere that attracts many students to its restaurants and bars. Students also have Tempe Marketplace, a shopping, dining and entertainment center with an outdoor setting near the northeast border of the campus. The Tempe campus is also home to all of the university's athletic facilities. West Valley campus Established in 1984 by the Arizona legislature, the West Valley campus sits on in a suburban area of northwest Phoenix. The West Valley campus lies about northwest of Downtown Phoenix, and about northwest of the Tempe campus. The West Valley campus is designated as a Phoenix Point of Pride and is nearly completely powered by a solar array. The campus serves more than 4,000 students enrolled in at least a single course and offers more than 100 degree programs from the New College of Interdisciplinary Arts and Sciences, the Mary Lou Fulton Teachers College, W. P. Carey School of Business, College of Public Service and Community Solutions, College of Health Solutions, and the College of Nursing and Health Innovation. Polytechnic campus Founded in 1996 as "ASU East", the ASU Polytechnic campus serves more than 4,800 students and is home to more than 130 bachelor's, master's and doctoral degrees in professional, technical science, humanities, social science and pre-health programs through the W. P. Carey School of Business/Morrison School of Management and Agribusiness, Mary Lou Fulton Teachers College, Ira A. Fulton Schools of Engineering, and College of Integrative Sciences and Arts. The campus — a desert arboretum — includes outdoor learning labs and spaces as well as leading-edge simulators and indoor lab spaces to support teaching and research in various fields of study. The campus is in southeast Mesa, Arizona, approximately southeast of the Tempe campus, and southeast of downtown Phoenix. The Polytechnic campus sits on the former Williams Air Force Base and is adjacent to the Phoenix-Mesa Gateway Airport and Chandler-Gilbert Community College (Williams campus). Downtown Phoenix campus The Downtown Phoenix campus was established in 2006 on the north side of Downtown Phoenix. The campus has an urban design, with several large modern academic buildings intermingled with commercial and retail office buildings. In addition to the new buildings, the campus included the adaptive reuse of several existing structures, including a 1930s era Post Office that is on the National Register of Historic Places. Serving 11,465 students, the campus houses the College of Health Solutions, College of Integrative Science and Arts, College of Nursing and Health Innovation, College of Public Service and Community Solutions, Mary Lou Fulton Teachers College, and Walter Cronkite School of Journalism and Mass Communication. In 2013, the campus added the Sun Devil Fitness Center in conjunction with the original YMCA building. ASU's Sandra Day O'Connor College of Law relocated from Tempe to the Downtown Phoenix campus in 2016. ASU Colleges at Lake Havasu City In response to demands for lower-cost public higher education in Arizona, ASU developed the small, undergraduate-only college in Lake Havasu City. ASU Colleges are teaching-focused and provide a selection of popular undergraduate majors. The Lake Havasu City campus offers undergraduate degrees at lower tuition rates than other Arizona research universities and a 15-to-1 student-to-faculty ratio. ASU Online ASU Online offers more than 150 undergraduate and graduate degree programs through an online platform. The degree programs delivered online hold the same accreditation as the university's traditional face-to-face programs. ASU Online is headquartered at ASU's SkySong campus in Scottsdale, Arizona. ASU Online was ranked in the Top 4 for Best Online Bachelor's Programs by U.S. News & World Report. Online students are taught by the same faculty and receive the same diploma as on-campus students. ASU online programs allow students to learn in highly interactive environments through student collaboration and through technological personalized learning environments. In April 2015, ASU Online announced a partnership with edX to form a one of a kind program called the Global Freshman Academy. The program is open to all potential students. The students do not need to submit a high school transcript or GPA to apply for the courses. As of spring 2017, more than 25,000 students were enrolled through ASU Online. In June 2014, ASU Online and Starbucks announced a partnership called the Starbucks College Achievement Plan. The Starbucks College Achievement Plan offers all benefits-eligible employees full-tuition coverage when they enroll in any one of ASU Online's undergraduate degree programs. Mayo Clinic School of Medicine, in collaboration with ASU In 2016, Mayo Clinic and ASU formed a new platform for health care education and research: the Mayo Clinic and Arizona State University Alliance for Health Care. Beginning in 2017, Mayo Clinic School of Medicine students in Phoenix and Scottsdale are among the first to earn a certificate in the Science of Health Care Delivery, with the option to earn a master's degree in the Science of Health Care Delivery through ASU. Thunderbird Campus Thunderbird School of Global Management is one of the newest units of "Arizona State University Knowledge Enterprise." The flagship campus was in Glendale, Arizona, at Thunderbird Field No. 1, a former military airfield from which it derives its name, until 2018 when the Thunderbird School relocated to the Downtown area. Barrett and O'Connor Center Following a nearly 15-year presence in Washington, D.C., through more minor means, ASU opened the Barrett and O'Connor Center in 2018 to solidify the university's contacts with the capital city. The center houses ASU's D.C.-based academic programs, including the Washington Bureau of the Walter Cronkite School of Journalism and Mass Communication, the Sandra Day O'Connor College of Law Rule of Law and Governance program, the Capital Scholars program, and the McCain Institute's Next Generation Leaders program, among many others. In addition to hosting classes and internships on-site, special lectures and seminars taught from the Barrett & O'Connor Washington Center are connected to classrooms in Arizona through video-conferencing technology. The Barrett and O'Connor center is located at 1800 I St NW, Washington, DC 20006, close to the White House. ASU California Center in Downtown Los Angeles ASU's California Center is located in Los Angeles at the Herald Examiner Building. The center offers undergraduate and graduate degree programs, executive education, workshops and seminars. Academics Admissions As of August 2022, ASU had a systemwide enrolled student population (both in-person and online) of 140,759, a 4% increase over the systemwide total in 2021. Out of that total, approximately 79,000 students were enrolled in-person at one of the ASU campuses, an increase of 3.2% from 2021. Just over 61,000 students were enrolled in ASU Online courses and programs as of August 2022, an increase of roughly 7% in online student enrollment from the previous year. According to the U.S. News & World Report, for the 2022–2023 academic year ASU admitted 88% of all freshman applicants and classified the school's admissions in the “selective” category. The average high school GPA of incoming first-year students for the 2022–23 academic year was 3.54. Barrett, The Honors College is ranked among the top honors programs in the nation. Although there are no set minimum admissions criteria for Barrett College, the average GPA of Fall 2017 incoming freshmen was 3.78, with an average SAT score of 1380 and an average ACT score of 29. The Honors college has 7,236 students, with 719 National Merit Scholars. ASU enrolls 10,268 international students, 14.3% of the total student population. The international student body represents more than 150 nations. The Institute of International Education ranked ASU as the top public university in the U.S. for hosting international students in 2016–2017. In June 2022, Arizona State University was designated a Hispanic-serving institution (HSI) by the United States Department of Education in recognition of the fact that for the first time in the school's history, during the Fall Semester of 2021 Hispanic students comprised over 25% of the university's total undergraduate enrollment. Academic programs ASU offers over 350 majors to undergraduate students, and more than 100 graduate programs leading to numerous masters and doctoral degrees in the liberal arts and sciences, design and arts, engineering, journalism, education, business, law, nursing, public policy, technology, and sustainability. These programs are divided into 16 colleges and schools that are spread across ASU's six campuses. ASU also offers the 4+1 accelerated program, which allows students in their senior year to attain their master's degree the following year. The 4+1 accelerated program is not associated with all majors; for example, in the Mary Lou Fulton Teachers College the 4+1 accelerated program only works with Education Exploratory majors. ASU uses a plus-minus grading system with highest cumulative GPA awarded of 4.0 (at time of graduation). Arizona State University is accredited by the Higher Learning Commission. ASU is one of only four universities in the country to offer a certificate in veterans studies. Rankings The 2021 U.S. News & World Report ratings ranked ASU tied for 103rd among universities in the United States and tied for 146th globally. It was also tied for 46th among public universities in the United States, and was ranked 1st among "most innovative schools", tied for 16th in "best undergraduate teaching", 131st in "best value schools", and tied for 191st in "top performers on social mobility" among national universities in the U.S. The innovation ranking, new for 2016, was determined by a poll of top college officials nationwide asking them to name institutions "that are making the most innovative improvements in terms of curriculum, faculty, students, campus life, technology or facilities." ASU is ranked 42nd–56th in the U.S. and 101st–150th in the world among the top 1000 universities in the 2020 Academic Ranking of World Universities, and 67th U.S./183rd world by the 2020–21 Center for World University Rankings. Money magazine ranked ASU 124th in the country out of 739 schools evaluated for its 2020 "Best Colleges for Your Money" edition. The Wall Street Journal ranks ASU 5th in the nation for producing the best-qualified graduates, determined by a nationwide poll of corporate recruiters. ASU's Walter Cronkite School of Journalism and Mass Communication has been named one of America's top 10 journalism schools by national publications and organizations for more than a decade. The rankings include: College Magazine (10th), Quality Education and Jobs (6th), and International Student (1st). For its efforts as a national leader in campus sustainability, ASU was named one of the top 6 "Cool Schools" by the Sierra Club in 2017, was named one of the Princeton Review's most sustainable schools in 2015 and earned an "A−" grade on the 2011 College Sustainability Green Report Card. Research and Institutes ASU is classified among "R1: Doctoral Universities – Very High Research Activity". The university spent $673 million in fiscal year 2020, ranking it 43rd nationally. ASU is a NASA designated national space-grant institute and a member of the Universities Research Association. In 2023, it became a member of the Association of American Universities, an elite organization of 71 research universities in the U.S. and Canada. The university is currently in the top 10 for NASA-funded research expenditures. The university has raised more than $999 million in external funding, and more than 180 companies based on ASU innovations have been launched through the university's exclusive intellectual property management company, Skysong Innovations. The U.S. National Academy of Inventors and the Intellectual Property Owners Association rank ASU in the top 10 nationally and No. 11 globally for U.S. patents awarded to universities in 2020, along with MIT, Stanford and Harvard. ASU jumped to 10th place from 17th in 2017, according to the U.S. National Academy of Inventors and the Intellectual Property Owners Association. Since its inception, Skysong Innovations has fostered the launch of more than 180 companies based on ASU innovations, and attracted more than $999 million in venture funding, including $96 million in fiscal year 2016 alone. In 2013, the Sweden-based University Business Incubator (UBI) Index, named ASU as one of the top universities in the world for business incubation, ranking 17th. UBI reviewed 550 universities and associated business incubators from around the world using an assessment framework that takes more than 50 performance indicators into consideration. As an example, one of ASU's spin-offs (Heliae Development, LLC) raised more than $28 million in venture capital in 2013 alone. In June 2016, ASU received the Entrepreneurial University Award from the Deshpande Foundation, a philanthropic organization that supports social entrepreneurship and innovation. The university's push to create various institutes has led to greater funding and an increase in the number of researchers in multiple fields. ASU Knowledge Enterprise (KE) advances research, innovation, strategic partnerships, entrepreneurship, economic development and international development. KE is led by Sally C. Morton. KE supports several interdisciplinary research institutes and initiatives. Other notable and famed institutes at ASU are The Institute of Human Origins, L. William Seidman Research Institute (W. P. Carey School of Business), Learning Sciences Institute, Herberger Research Institute, and the Hispanic Research Center. The Biodesign Institute for instance, conducts research on issues such as biomedical and health care outcomes as part of a collaboration with Mayo Clinic to diagnose and treat diseases. The institute has attracted more than $760 million in external funding, filed 860 invention disclosures, nearly 200 patents, and generated 35 spinout companies based on its research. In the early months of the COVID-19 pandemic, Biodesign developed a rapid, saliva-based testing option for the university community, and partnered with the Arizona Department of Health Services to make the saliva-based COVID test available to the public. In October 2021, Biodesign announced their millionth test. The institute also is heavily involved in sustainability research, primarily through reuse of CO2 via biological feedback and various biomasses (e.g. algae) to synthesize clean biofuels. Heliae is a Biodesign Institute spin-off and much of its business centers on algal-derived, high value products. Furthermore, the institute is heavily involved in security research including technology that can detect biological and chemical changes in the air and water. The university has received more than $30 million in funding from the Department of Defense for adapting this technology for use in detecting the presence of biological and chemical weapons. Research conducted at the Biodesign Institute by ASU professor Charles Arntzen made possible the production of Ebola antibodies in specially modified tobacco plants that researchers at Mapp Biopharmaceutical used to create the Ebola therapeutic ZMapp. The treatment is credited with saving the lives of two aid workers. For his work, Arntzen was named the No. 1 honoree among Fast Company's annual "100 Most Creative People in Business" 2015 awards. World-renowned scholars have been integral to the successes of the institutes associated with the university. ASU students and researchers have been selected as Marshall, Truman, Rhodes, and Fulbright Scholars with the university ranking 1st overall in the U.S. for Fulbright Scholar awards to faculty and 5th overall for recipients of Fulbright U.S. Student awards in the 2015–2016 academic year. ASU faculty includes Nobel Laureates, Royal Society members, National Academy members, and members of the National Institutes of Health, to name a few. ASU Professor Donald Johanson, who discovered the 3.18 million year old fossil hominid Lucy (Australopithecus) in Ethiopia, established the Institute of Human Origins (IHO) in 1981. The institute was first established in Berkeley, California, and later moved to ASU in 1997. As one of the leading research organization in the United States devoted to the science of human origins, IHO pursues a transdisciplinary strategy for field and analytical paleoanthropological research. The Herberger Institute Research Center supports the scholarly inquiry, applied research and creative activity of more than 400 faculty and nearly 5,000 students. The renowned ASU Art Museum, Herberger Institute Community Programs, urban design, and other outreach and initiatives in the arts community round out the research and creative activities of the Herberger Institute. Among well known professors within the Herberger Institute is Johnny Saldaña of the School of Theatre and Film. Saldaña received the 1996 Distinguished Book Award and the prestigious Judith Kase Cooper Honorary Research Award, both from the American Alliance for Theatre Education (AATE). The Julie Ann Wrigley Global Institute of Sustainability is the center of ASU's initiatives focusing on practical solutions to environmental, economic, and social challenges. The institute has partnered with various cities, universities, and organizations from around the world to address issues affecting the global community. ASU is also involved with NASA in the field of space exploration. To meet the needs of NASA programs, ASU built the LEED Gold Certified, 298,000-square-foot Interdisciplinary Science and Technology Building IV (ISTB 4) at a cost of $110 million in 2012. The building includes space for the School of Earth and Space Exploration (SESE) and includes labs and other facilities for the Ira A. Fulton Schools of Engineering. One of the main projects at ISTB 4 includes the OSIRIS-REx Thermal Emission Spectrometer (OTES). Although ASU built the spectrometers aboard the Martian rovers Spirit and Opportunity, OTES will be the first major scientific instrument completely designed and built at ASU for a NASA space mission. Phil Christensen, the principal investigator for the Mars Global Surveyor Thermal Emission Spectrometer (TES), is a Regents' Professor at ASU. He also serves as the principal investigator for the Mars Odyssey THEMIS instruments, as well as co-investigator for the Mars Exploration Rovers. ASU scientists are responsible for the Mini-TES instruments aboard the Mars Exploration Rovers. The Buseck Center for Meteorite Studies, which is home to rare Martian meteorites and exotic fragments from space, and the Mars Space Flight Facility are on ASU's Tempe campus. In 2017, Lindy Elkins-Tanton of ASU was selected by NASA to lead a deep space mission to Psyche, a metal asteroid believed to be a former planetary core. The $450 million project is the first NASA mission led by the university. The Army Research Laboratory extended funding for the Arizona State University Flexible Display Center (FDC) in 2009 with a $50 million grant. The university has partnered with the Pentagon on such endeavors since 2004 with an initial $43.7 million grant. In 2012, researchers at the center created the world's largest flexible full-color organic light-emitting diode (OLED), which at the time was 7.4 inches. The following year, the FEDC staff broke their own world record, producing a 14.7-inch version of the display. The technology delivers high-performance while remaining cost-effective during the manufacturing process. Vibrant colors, high switching speeds for video and reduced power consumption are some of the features the center has integrated into the technology. In 2012, ASU eliminated the need for specialized equipment and processing, thereby reducing costs compared to competitive approaches. Luminosity Lab The Luminosity Lab is a student-led research and development think tank located on the Tempe campus of ASU. It was founded in 2016 by Dr. Mark Naufel. Fifteen students from multiple disciplines were selected for the initial team. Notable projects NASA A team of students from the Luminosity Lab were finalists in NASA's 2020 BIG Idea Challenge, a national competition to build a probe to explore the darkened regions of the Moon. A team of students from the Luminosity Lab were among 22 finalists in the Space Robotics Challenge, one of NASA's Centennial Challenges. X-Prize In summer 2020, Salesforce CEO Marc Beinhoff partnered with CNBC's Jim Cramer and the X-Prize Foundation, an international mask design competition with an overall prize purse of $1 million. A team of five students from the Luminosity Lab were the winners of the X-prize Next-gen Mask challenge, winning $500,000. The team received national and international press coverage and recognition as the result of being named the top mask of the competition. Libraries ASU's faculty and students are served by nine libraries across five campuses: Hayden Library, Noble Library, Music Library and Design and the Arts Library on the Tempe campus; Fletcher Library on the West campus; Downtown Phoenix campus library and Ross-Blakley Law Library at the Downtown Phoenix campus; Polytechnic campus library; and the Thunderbird Library at the Thunderbird campus. , ASU's libraries held 4.5 million volumes. The Arizona State University library system is ranked the 34th largest research library in the United States and Canada, according to criteria established by the Association of Research Libraries that measures various aspects of quality and size of the collection. The university continues to grow its special collections, such as the recent addition of a privately held collection of manuscripts by poet Rubén Darío. Hayden Library is on Cady Mall in the center of the Tempe campus and is currently under renovation. It opened in 1966 and is the largest library facility at ASU. An expansion in 1989 created the subterranean entrance underneath Hayden Lawn and is attached to the above-ground portion of the original library. There are two floors underneath Hayden Lawn with a landmark known as the "Beacon of Knowledge" rising from the center. The underground library lights the beacon at night. The 2013 Capital Improvement Plan, approved by the Arizona Board of Regents, incorporates a $35 million repurposing and renovation project for Hayden Library. The open air moat area that serves as an outdoor study space will be enclosed to increase indoor space for the library. Along with increasing space and renovating the facility, the front entrance of Hayden Library was rebuilt. Sustainability , ASU was the top institution of higher education in the United States for solar generating capacity. Today, the university generates over 24 megawatts (MW) of electricity from on-campus solar arrays. This is an increase over the June 2012 total of 15.3 MW. ASU has 88 solar photovoltaic (PV) installations containing 81,424 solar panels across four campuses and the ASU Research Park. An additional 29 MWdc solar installation was dedicated at Red Rock, Pinal County, Arizona, in January 2017, bringing the university's solar generating capacity to 50 MWdc. Additionally, six wind turbines installed on the roof of the Julie Ann Wrigley Global Institute of Sustainability building on the Tempe campus have operated since October 2008. Under normal conditions, the six turbines produce enough electricity to power approximately 36 computers. In 2021, ASU researchers installed a passive radiative cooling film to local Tempe bus shelters to cool temperatures during the daytime by radiating heat to space with zero energy use. The film was produced by 3M and cooled shelter temperatures by 4 °C. It was one of the first applications of the cooling film in the country. ASU's School of Sustainability was the first school in the United States to introduce degrees in the field of sustainability. ASU's School of Sustainability is part of the Wrigley Global Institute of Sustainability. The School was established in spring 2007 and began enrolling undergraduates in fall 2008. The school offers majors, minors, and a number of certificates in sustainability. ASU is also home to the Sustainability Consortium, which was founded by Jay Golden in 2009. The School of Sustainability has been essential in establishing the university as "a leader in the academics of sustainable business". The university is widely considered to be one of the most ambitious and principled organizations for embedding sustainable practices into its operating model. The university has embraced several challenging sustainability goals. Among the numerous benchmarks outlined in the university's prospectus, is the creation of a large recycling and composting operation that will eliminate 30% and divert 90% of waste from landfills. This endeavor will be aided by educating students about the benefits of avoiding overconsumption that contributes to excessive waste. Sustainability courses have been expanded to attain this goal and many of the university's individual colleges and schools have integrated such material into their lectures and courses. Second, ASU is on track to reduce its rate of water consumption by 50%. The university's most aggressive benchmark is to be the first, large research university to achieve carbon neutrality as it pertains to its Scope 1, 2 and non-transportation Scope 3 greenhouse gas (GHG) emissions. ASU's College of Integrative Sciences and Arts (CISA) offers degrees and certifications focused on sustainable horticulture, natural resource ecology, indoor farming, desert food production and wildlife management, through its College of Applied Sciences and Arts at ASU's Polytechnic campus. CISA's Burrowing Owl Conservation Project at the Polytechnic campus was noted as one of the distinctive features of ASU in The Sierra Club magazine's ranking of ASU as the top "cool school" for sustainability in 2021. CISA faculty at the Polytechnic campus in disciplines such as applied biological sciences, and technical communication and user experience, are involved in research and community outreach to promote sustainable use of resources and preservation of species and habitat. Vertical farming, indoor farming and water conservation efforts are just a few of the sustainability initiatives being driven by CISA faculty. Traditions Maroon and gold Gold is the oldest color associated with Arizona State University and dates back to 1896 when the school was named the Tempe Normal School. Maroon and white were later added to the color scheme in 1898. Gold signifies the "golden promise" of ASU. The promise includes every student receiving a valuable educational experience. Gold also signifies the sunshine Arizona is famous for; including the power of the sun and its influence on the climate and the economy. The first uniforms worn by athletes associated with the university were black and white when the "Normals" were the name of the athletic teams. The student section, known as The Inferno, wears gold on game days. Maroon signifies sacrifice and bravery while white represents the balance of negativity and positivity. As it is in the city of Tempe, Arizona, the school's colors adorn the neighboring buildings during big game days and festive events. Mascot and Spirit Squad Sparky the Sun Devil is the mascot of Arizona State University and was named by vote of the student body on November 8, 1946. Sparky often travels with the team across the country and has been at every football bowl game in which the university has participated. The university's mascot is not to be confused with the athletics department's logo, the Pitchfork or hand gesture used by those associated with the university. The new logo is used on various sport facilities, uniforms and athletics documents. Arizona State Teacher's College had a different mascot and the sports teams were known as the Owls and later, the Bulldogs. When the school was first established, the Tempe Normal School's teams were simply known as the Normals. Sparky is visible on the sidelines of every home game played in Sun Devil Stadium or other ASU athletic facilities. His routine at football games includes pushups after every touchdown scored by the Sun Devils. He is aided by Sparky's Crew, male yell leaders that must meet physical requirements to participate as members. The female members are known as the Spirit Squad and are categorized into a dance line and spirit line. They are the official squad that represents ASU. The spirit squad competes every year at the ESPN Universal Dance Association (UDA) College Nationals in the Jazz and Hip-Hop categories. They were chosen by the UDA to represent the US at the World Dance Championship 2013 in the Jazz category. "A" Mountain A letter has existed on the slope of the mountain since 1918. A "T" followed by an "N" were the first letters to grace the landmark. Tempe Butte, home to "A" Mountain, has had the "A" installed on the slope of its south face since 1938 and is visible from campus just to the south. The original "A" was destroyed by vandals in 1952 with pipe bombs and a new "A", constructed of reinforced concrete, was built in 1955. The vandals were never identified but many speculate the conspirators were students from the rival in-state university (University of Arizona). Many ancient Hohokam petroglyphs were destroyed by the bomb; nevertheless, many of these archeological sites around the mountain remain. There are many traditions surrounding "A" Mountain, including a revived "guarding of the 'A'" in which students camp on the mountainside before games with rival schools. "Whitewashing" of the "A" is a tradition in which incoming freshmen paint the letter white during orientation week and is repainted gold before the first football game of the season. Whitewashing dates back to the 1930s and it grows in popularity every year, with thousands of students going up to paint the "A" every year. Lantern Walk and Homecoming The Lantern Walk is one of the oldest traditions at ASU and dates back to 1917. It is considered one of ASU's "most cherished" traditions and is an occasion used to mark the work of those associated with ASU throughout history. Anyone associated with ASU is free to participate in the event, including students, alumni, faculty, employees, and friends. This differs slightly from the original tradition in which the seniors would carry lanterns up "A" Mountain followed by the freshman. The senior class president would describe ASU's traditions and the freshman would repeat an oath of allegiance to the university. It was described as a tradition of "good will between the classes" and a way of ensuring new students would continue the university's traditions with honor. In modern times, the participants walk through campus and follow a path up to "A" Mountain to "light up" Tempe. Keynote speakers, performances, and other events are used to mark the occasion. The night is culminated with a fireworks display. The Lantern Walk was held after the Spring Semester (June) but is now held the week before Homecoming, a tradition that dates to 1924 at ASU. It is held in the fall and in conjunction with a football game. Victory Bell In 2012, Arizona State University reintroduced the tradition of ringing a bell after each win for the football team. The ROTC cadets associated with the university transport the bell to various events and ring it after Sun Devil victories. The first Victory Bell, in various forms, was used in the 1930s but the tradition faded in the 1970s when the bell was removed from Memorial Union for renovations. The bell cracked and was no longer capable of ringing. That bell is on the southeast corner of Sun Devil Stadium, near the entrance to the student section. That bell, given to the university in the late 1960s, is painted gold and is a campus landmark. Sun Devil Marching Band, Devil Walk and songs of the university The Arizona State University Sun Devil Marching Band, created in 1915 and known as the "Pride of the Southwest", was the first of only two marching bands in the Pac-12 to receive the prestigious Sudler Trophy. The John Philip Sousa Foundation awarded the band the trophy in 1991. The Sun Devil Marching Band remains one of only 28 bands in the nation to have earned the designation. The band performs at every football game played in Sun Devil Stadium. In addition, the Sun Devil Marching Band has made appearances in the Fiesta Bowl, the Rose Bowl, the Holiday Bowl, and the Super Bowl XLII, in addition to many others. Smaller ensembles of band members perform at other sport venues including basketball games at Wells Fargo Arena and baseball games. The Devil Walk is held in Wells Fargo Arena by the football team and involves a more formal introduction of the players to the community; a new approach to the tradition added in 2012 with the arrival of head coach Todd Graham. It begins 2 hours and 15 minutes prior to the game and allows the players to establish rapport with the fans. The walk ends as the team passes the band and fans lined along the path to Sun Devil Stadium. The walk was discontinued when Graham was fired. However, in 2022, interim coach Shaun Aguano announced that the Sun Devil Walk is returning. The most recognizable songs played by the band are "Alma Mater" and ASU's fight songs titled "Maroon and Gold" and the "Al Davis Fight Song". "Alma Mater" was composed by former Music Professor and Director of Sun Devil Marching Band (then known as Bulldog Marching Band), Miles A. Dresskell, in 1937. "Maroon and Gold" was authored by former Director of Sun Devil Marching Band, Felix E. McKernan, in 1948. The "Al Davis Fight Song" (also known as "Go, Go Sun Devils" and "Arizona State University Fight Song") was composed by ASU alumnus Albert Oliver Davis in the 1940s without any lyrics. Recently lyrics were added to the song. Curtain of Distraction The Curtain of Distraction is a tradition that appears at every men's and women's basketball game. The tradition started in 2013 in order to get fans to the games. In the second half of basketball games, a portable "curtain" opens up in front of the opponents shooting a free throw and students pop out of the curtain to try and distract the opponent. Some of the skits include an Elvis impersonator, people rubbing mayonnaise on their chest, and people wearing unicorn heads. In 2016, former Olympian Michael Phelps came out of the curtain wearing a Speedo during a game against Oregon State. ESPN estimated that distraction may give ASU a one-to-three point advantage. Student life Extracurricular programs Arizona State University has an active extracurricular involvement program. Located on the second floor of the Student Pavilion at the Tempe campus, Educational Outreach and Student Services (EOSS) provides opportunities for student involvement through clubs, sororities, fraternities, community service, leadership, student government, and co-curricular programming. The oldest student organization on campus is Devils' Advocates, the volunteer campus tour guide organization, which was founded in 1966 as a way to more competitively recruit National Merit Scholars. There are over 1,100 ASU alumni who can call themselves Advos. Changemaker Central is a student-run centralized resource hub for student involvement in social entrepreneurship, civic engagement, service-learning, and community service that catalyzes student-driven social change. Changemaker Central locations have opened on all campuses in fall 2011, providing flexible, creative workspaces for everyone in the ASU community. The project is entirely student run and advances ASU's institutional commitments to social embeddedness and entrepreneurship. The space allows students to meet, work and join new networks and collaborative enterprises while taking advantage of ASU's many resources and opportunities for engagement. Changemaker Central has signature programs, including Changemaker Challenge, that support students in their journey to become changemakers by creating communities of support around new solutions/ideas and increasing access to early stage seed funding. The Changemaker Challenge seeks undergraduate and graduate students from across the university who are dedicated to making a difference in our local and global communities through innovation. Students can win up to $10,000 to make their innovative project, prototype, venture or community partnership ideas happen. In addition to Changemaker Central, the Greek community (Greek Life) at Arizona State University has been important in binding students to the university, and providing social outlets. ASU is also home to one of the nation's first and fastest growing gay fraternities, Sigma Phi Beta, founded in 2003; considered a sign of the growing university's commitment to supporting diversity and inclusion. The second Eta chapter of Phrateres, a non-exclusive, non-profit social-service club, was installed here in 1958 and became inactive in the 1990s. There are multiple councils for Greek Life, including the Interfraternity Council (IFC), Multicultural Greek Council (MGC), National Association of Latino Fraternal Organizations (NALFO), National Pan-Hellenic Council (NPHC), Panhellenic Association (PHA), and the Professional Fraternity Council (PFC). Student media The State Press is the university's independent, student-operated news publication. The State Press covers news and events on all four ASU campuses. Student editors and managers are solely responsible for the content of the State Press website. These publications are overseen by an independent board and guided by a professional adviser employed by the university. The Downtown Devil is a student-run news publication website for the Downtown Phoenix Campus, produced by students at the Walter Cronkite School of Journalism and Mass Communication. ASU has one student-run radio station, Blaze Radio. Blaze Radio is a completely student-run broadcast station owned and funded by the Cronkite School of Journalism. The station broadcasts using a 24-hour online stream on their official website. Blaze Radio plays music 24 hours a day and features daily student-hosted news, music, and sports specialty programs. Student government Associated Students of Arizona State University (ASASU) is the student government at Arizona State University. It is composed of the Undergraduate Student Government and the Graduate & Professional Student Association (GPSA). Each ASU campus has a specific USG; USG Tempe (Tempe), USGD (Downtown), USG Polytechnic (Polytechnic) and USG West (West). Members and officers of ASASU are elected annually by the student body. The Residence Hall Association (RHA) of Arizona State University is the student government for every ASU student living on-campus. Each ASU campus has an RHA that operates independently. RHA's purpose is to improve the quality of residence hall life and provide a cohesive voice for the residents by addressing the concerns of the on-campus populations to university administrators and other campus organizations; providing cultural, diversity, educational, and social programming; establishing and working with individual community councils. Athletics Arizona State University's Division I athletic teams are called the Sun Devils, which is also the nickname used to refer to students and alumni of the university. They compete in the Pac-12 Conference in 20 varsity sports. Historically, the university has highly performed in men's, women's, and mixed archery; men's, women's, and mixed badminton; women's golf; women's swimming and diving; baseball; and football. Arizona State University's NCAA Division I-A program competes in 9 varsity sports for men and 11 for women. ASU's athletic director is Ray Anderson, former executive vice president of football operations for the National Football League. Anderson replaced Steve Patterson, who was appointed to the position in 2012, replacing Lisa Love, the former Senior Associate Athletic Director at the University of Southern California. Love was responsible for the hiring of coaches Herb Sendek, the men's basketball coach, and Dennis Erickson, the men's football coach. Erickson was fired in 2011 and replaced by Todd Graham. In December 2017, ASU announced that Herm Edwards would replace Graham as the head football coach. The rival to Arizona State University is University of Arizona. ASU has won 24 national collegiate team championships in the following sports: baseball (5), men's golf (2), women's golf (8), men's gymnastics (1), softball (2), men's indoor track (1), women's indoor track (2), men's outdoor track (1), women's outdoor track (1), and wrestling (1). In September 2009, criticism over the seven-figure salaries earned by various coaches at Arizona's public universities (including ASU) prompted the Arizona Board of Regents to re-evaluate the salary and benefit policy for athletic staff. With the 2011 expansion of the Pac-12 Conference, a new $3 billion contract for revenue sharing among all the schools in the conference was established. With the infusion of funds, the salary issue and various athletic department budgeting issues at ASU were addressed. The Pac-12's new media contract with ESPN allowed ASU to hire a new coach in 2012. A new salary and bonus package (maximum bonus of $2.05 million) was instituted and is one of the most lucrative in the conference. ASU also plans to expand its athletic facilities with a public-private investment strategy to create an amateur sports district that can accommodate the Pan American Games and operate as an Olympic Training Center. The athletic district will include a $300 million renovation of Sun Devil Stadium that will include new football facilities. The press box and football offices in Sun Devil Stadium were remodeled in 2012. Arizona State Sun Devils football was founded in 1896 under coach Fred Irish. The team has played in the 2012 Fight Hunger Bowl, the 2011 Las Vegas bowl, the 2016 Cactus Bowl, and the 2007 Holiday Bowl. The Sun Devils played in the 1997 Rose Bowl and won the Rose Bowl in 1987. The team has appeared in the Fiesta Bowl in 1983, 1977, 1975, 1973, 1972, and 1971 winning 5 of 6. In 1970, and 1975, they were champions of the NCAA Division I FBS National Football Championship. The Sun Devils were Pac-12 Champions in 1986, 1996, and 2007. Altogether, the football team has 17 Conference Championships and has participated in a total of 29 bowl games as of the 2015–2016 season with a 14–14–1 record in those games. ASU Sun Devils Hockey competed with NCAA Division 1 schools for the first time in 2012, largely due to the success of the program. In 2016, they began as a full-time Division I team. Eight members of ASU's Women's Swimming and Diving Team were selected to the Pac-10 All-Academic Team on April 5, 2010. In addition, five member of ASU's Men's Swimming and Diving Team were selected to the Pac-10 All-Academic Team on April 6, 2010. In April 2015, Bobby Hurley was hired as the men's basketball coach, replacing Herb Sendek. Previously, Hurley was the head coach at the University at Buffalo for the UB Bulls as well as an assistant coach at Rhode Island and Wagner University. In 2015, Bob Bowman was hired as the head swim coach. Previously, Bowman trained Michael Phelps through his Olympic career. As of Fall 2015, ASU students, including those enrolled in online courses, may avail of a free ticket to all ASU athletic events upon presentation of a valid student ID and reserving one online through their ASU and Ticketmaster account. Tickets may be limited or not available in the 2020–2021 and 2021–2022 school years due to the COVID-19 Pandemic. Alumni Arizona State University has produced more than 600,000 alumni worldwide. The Arizona State University Alumni Association is on the Tempe campus in Old Main. Political figures The university has produced many notable figures over its 125-year history, including influential U.S. senator Carl Hayden and Barbara Barrett, who served as U.S. Ambassador to Finland under President George W. Bush and served under President Donald Trump as the Secretary of the U.S. Air Force, attained her bachelor's, master's, and law degrees from ASU. Other notable alumni include nine current or former U.S. Representatives, including Barry Goldwater Jr., Ed Pastor, and Matt Salmon. The economy minister of the United Arab Emirates, Sultan bin Saeed Al Mansoori, earned a bachelor's degree in engineering at ASU. Arizona governors Doug Ducey, Jane Dee Hull, and Evan Mecham also attended Arizona State. U.S. District Court Judge Michael T. Liburdi attended Arizona State for both his undergraduate and Juris Doctor degrees. Peterson Zah, who was the first Navajo president and the last chairman of the Navajo Nation, is an ASU graduate. Business leaders Ira A. Fulton, philanthropist and founder of Fulton Homes, Kate Spade, namesake and cofounder of Kate Spade New York, and Larry Carter, CFO of Cisco Systems attended ASU. Alumnus Kevin Warren is the COO of the Minnesota Vikings, and the highest ranking African-American executive working on the business side of an NFL team. Athletes Many world renowned athletes have attended the school, including Silver Star recipient Pat Tillman, who left his National Football League career to enlist in the United States Army in the aftermath of the September 11, 2001 terrorist attacks. World Golf Hall of Fame member Phil Mickelson, Baseball Hall of Fame member Reggie Jackson, Major League Baseball home run king Barry Bonds, National Basketball Association All-Star James Harden, and 2011 NFL Defensive Player of the Year Terrell Suggs are all alumni of ASU. ASU alumni enshrined in the Pro Football Hall of Fame include: Curley Culp, Mike Haynes, John Henry Johnson, Randall McDaniel, and Charley Taylor. Other notable athletes that attended ASU are: Major League Baseball All-Stars Ian Kinsler, Dustin Pedroia, Sal Bando, and Paul Lo Duca; National Basketball Association All-Stars Lionel Hollins and Fat Lever, and NBA All-Star coach Byron Scott; National Football League Pro Bowl selections Jake Plummer and Danny White; 2021 U.S. Open champion golfer Jon Rahm and three-time Olympic gold medalist swimmers Melissa Belote and Jan Henne, and two-time Olympian and double-Olympic gold medalist Megan Jendrick. Actors, artists, comedians, commentators, and writers Celebrities who have attended ASU include: Jimmy Kimmel Live! host Jimmy Kimmel; Steve Allen, who was the original host of The Tonight Show; Academy Award-nominated actor Nick Nolte; 11-Time Grammy Award winning singer Linda Ronstadt; singer-songwriter Carolyne Mas; Saturday Night Live and Tommy Boy actor David Spade; Wonder Woman actress Lynda Carter; and Road to Perdition actor Tyler Hoechlin. Influential writers and novelists include: Allison DuBois, whose novels and work inspired the TV miniseries Medium; novelist Amanda Brown; author and spiritual teacher Howard Falco; and best-selling author and Doctor of Animal Science Temple Grandin. Journalists and commentators include former Monday Night Football announcer, and Sunday Night Football announcer Al Michaels, and writer and cartoonist Jerry Dumas, who is best known for his Sam and Silo comic strip. Radio host Michael Reagan, the son of President Ronald Reagan and actress Jane Wyman, also briefly attended. Conservative author, commentator, and popular historian Larry Schweikart, known nationally for writing the New York Times bestseller A Patriot's History of the United States, attended ASU for his bachelor's and master's degrees. Faculty ASU faculty have included former CNN host Aaron Brown, Academic Claude Olney, meta-analysis developer Gene V. Glass, feminist and author Gloria Feldt, physicist Paul Davies, and Pulitzer Prize winner and The Ants coauthor Bert Hölldobler. David Kilcullen, a counterinsurgency theorist, is a professor of practice. Donald Johanson, who discovered the 3.18 million year old fossil hominid Lucy (Australopithecus) in Ethiopia, is also a professor, as well as George Poste, Chief Scientist for the Complex Adaptive Systems Initiative. Former US senator Jeff Flake was appointed as a distinguished dean fellow on December 2, 2020. Nobel laureate faculty include Leland Hartwell, and Edward C. Prescott. On June 12, 2012, Elinor Ostrom, ASU's third Nobel laureate, died at the age of 78. ASU faculty's achievements include: 5 Nobel laureates 3 members of the Royal Society 24 National Academy members 7 Pulitzer Prize winners 5 Sloan Research Fellows 37 Guggenheim Fellows 250 Fulbright American Scholars 5 MacArthur Fellow 23 members of the American Academy of Arts and Sciences 9 members of the National Academy of Engineering 143 National Endowment for the Humanities fellows 65 American Association for the Advancement of Science Fellows 2 members of the Institute of Medicine 8 Presidential Early Career Awards for Scientists and Engineers 8 American Council of Learned Societies Fellows 34 IEEE Fellows 19 Alexander Von Humboldt Foundation Prize Winners 1 Recipient of the Rockefeller Fellowship Presidential visits Arizona State University has been visited by nine United States presidents. President Theodore Roosevelt was the first president to visit campus, speaking on the steps of Old Main on March 20, 1911, while in Arizona to dedicate the Roosevelt Dam. President Lyndon B. Johnson spoke at ASU's Grady Gammage Memorial Auditorium on January 29, 1972, at a memorial service for ASU alumnus Senator Carl T. Hayden. Future president Gerald R. Ford debated Senator Albert Gore, Sr. at Grady Gammage Memorial Auditorium on April 28, 1968, and Ford returned to the same building as a former president to give a lecture on February 24, 1984. President Jimmy Carter visited Arizona PBS at ASU's Walter Cronkite School of Journalism and Mass Communication on July 31, 2015, to promote a memoir. Future president Ronald Reagan gave a political speech at the school's Memorial Union in 1957, and returned to campus as a former president on March 20, 1989, delivering his first ever post-presidential speech at ASU's Wells Fargo Arena. President George H. W. Bush gave a lecture at Wells Fargo Arena on May 5, 1998. President Bill Clinton became the first sitting president to visit ASU on October 31, 1996, speaking on the Grady Gammage Memorial Auditorium lawn. He returned to ASU in 2006, and in 2014, President Clinton, Hillary Clinton, and Chelsea Clinton came to campus to host the Clinton Global Initiative University. President George W. Bush became the second sitting president to visit the school's campus when he debated Senator John Kerry at the university's Grady Gammage Memorial Auditorium on October 13, 2004. President Barack Obama visited ASU as sitting president on May 13, 2009. President Obama delivered the commencement speech for the Spring 2009 Commencement Ceremony. President Obama had previously visited the school as a United States senator. President Richard Nixon did not visit ASU as president, but visited Phoenix as president on October 31, 1970, at an event that included a performance by the Arizona State University Band, which President Nixon acknowledged. As part of President Nixon's remarks, he stated that, "when I am in Arizona, Arizona State is number one." See also KAET (channel 8), a PBS member station owned by Arizona State University. Notes References External links 1885 establishments in Arizona Territory Arizona State Sun Devils Universities and colleges established in 1885 Natural Science Collections Alliance members Public universities and colleges in Arizona Arizona State University BSL3 laboratories in the United States Universities and colleges accredited by the Higher Learning Commission

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https://en.wikipedia.org/wiki/Astoria%2C%20Oregon

Astoria, Oregon

Astoria is a port city and the seat of Clatsop County, Oregon, United States. Founded in 1811, Astoria is the oldest city in the state and was the first permanent American settlement west of the Rocky Mountains. The county is the northwest corner of Oregon, and Astoria is located on the south shore of the Columbia River, where the river flows into the Pacific Ocean. The city is named for John Jacob Astor, an investor and entrepreneur from New York City, whose American Fur Company founded Fort Astoria at the site and established a monopoly in the fur trade in the early 19th century. Astoria was incorporated by the Oregon Legislative Assembly on October 20, 1856. The city is served by the deepwater Port of Astoria. Transportation includes the Astoria Regional Airport. U.S. Route 30 and U.S. Route 101 are the main highways, and the Astoria–Megler Bridge connects to neighboring Washington across the river. The population was 10,181 at the 2020 census. History Prehistoric settlements During archeological excavations in Astoria and Fort Clatsop in 2012, trading items from American settlers with Native Americans were found, including Austrian glass beads and falconry bells. The present area of Astoria belonged to a large, prehistoric Native American trade system of the Columbia Plateau. 19th century The Lewis and Clark Expedition spent the winter of 1805–1806 at Fort Clatsop, a small log structure southwest of modern-day Astoria. The expedition had hoped a ship would come by that could take them back east, but instead, they endured a torturous winter of rain and cold. They later returned overland and by internal rivers, the way they had traveled west. Today, the fort has been recreated and is part of Lewis and Clark National Historical Park. In 1811, British explorer David Thompson, the first person known to have navigated the entire length of the Columbia River, reached the partially constructed Fort Astoria near the mouth of the river. He arrived two months after the Pacific Fur Company's ship, the Tonquin. The fort constructed by the Tonquin party established Astoria as a U.S., rather than a British, settlement and became a vital post for American exploration of the continent. It was later used as an American claim in the Oregon boundary dispute with European nations. The Pacific Fur Company, a subsidiary of John Jacob Astor's American Fur Company, was created to begin fur trading in the Oregon Country. During the War of 1812, in 1813, the company's officers sold its assets to their Canadian rivals, the North West Company, which renamed the site Fort George. The fur trade remained under British control until U.S. pioneers following the Oregon Trail began filtering into the town in the mid-1840s. The Treaty of 1818 established joint U.S. – British occupancy of the Oregon Country. Washington Irving, a prominent American writer with a European reputation, was approached by John Jacob Astor to mythologize the three-year reign of his Pacific Fur Company. Astoria (1835), written while Irving was Astor's guest, promoted the importance of the region in the American psyche. In Irving's words, the fur traders were "Sinbads of the wilderness", and their venture was a staging point for the spread of American economic power into both the continental interior and outward in Pacific trade. In 1846, the Oregon Treaty divided the mainland at the 49th parallel north, making Astoria officially part of the United States. As the Oregon Territory grew and became increasingly more colonized by Americans, Astoria likewise grew as a port city near the mouth of the great river that provided the easiest access to the interior. The first U.S. post office west of the Rocky Mountains was established in Astoria in 1847 and official state incorporation in 1876. Astoria attracted a host of immigrants beginning in the late 19th century: Nordic settlers, primarily Swedes, Swedish speaking Finns, and Chinese soon became larger parts of the population. The Nordic settlers mostly lived in Uniontown, near the present-day end of the Astoria–Megler Bridge, and took fishing jobs; the Chinese tended to do cannery work, and usually lived either downtown or in bunkhouses near the canneries. By the late 1800s, 22% of Astoria's population was Chinese. Astoria also had a significant population of Indians, especially Sikhs from Punjab; the Ghadar Party, a political movement among Indians on the West Coast of the U.S. and Canada to overthrow British rule in India, was officially founded on July 15, 1913, in Astoria. 20th and 21st centuries In 1883, and again in 1922, downtown Astoria was devastated by fire, partly because the buildings were constructed mostly of wood, a readily available material. The buildings were entirely raised off the marshy ground on wooden pilings. Even after the first fire, the same building format was used. In the second fire, flames spread quickly again, and the collapsing streets took out the water system. Frantic citizens resorted to dynamite, blowing up entire buildings to create fire stops. Astoria has served as a port of entry for over a century and remains the trading center for the lower Columbia basin. In the early 1900s, the Callendar Navigation Company was an important transportation and maritime concern based in the city. It has long since been eclipsed in importance by Portland, Oregon, and Seattle, Washington, as economic hubs on the coast of the Pacific Northwest. Astoria's economy centered on fishing, fish processing, and lumber. In 1945, about 30 canneries could be found along the Columbia River. In the early 20th century, the North Pacific Brewing Company contributed substantially to the economic well-being of the town. Before 1902, the company was owned by John Kopp, who sold the firm to a group of five men, one of whom was Charles Robinson, who became the company's president in 1907. The main plant for the brewery was located on East Exchange Street. As the Pacific salmon resource diminished, canneries were closed. In 1974, the Bumble Bee Seafoods corporation moved its headquarters out of Astoria and gradually reduced its presence until closing its last Astoria cannery in 1980. The lumber industry likewise declined in the late 20th century. Astoria Plywood Mill, the city's largest employer, closed in 1989. The Burlington Northern and Santa Fe Railway discontinued service to Astoria in 1996, as it did not provide a large enough market. From 1921 to 1966, a ferry route across the Columbia River connected Astoria with Pacific County, Washington. In 1966, the Astoria–Megler Bridge was opened. The bridge completed U.S. Route 101 and linked Astoria with Washington on the opposite shore of the Columbia, replacing the ferry service. Today, tourism, Astoria's growing art scene, and light manufacturing are the main economic activities of the city. Logging and fishing persist, but at a fraction of their former levels. Since 1982 it has been a port of call for cruise ships, after the city and port authority spent $10 million in pier improvements to accommodate these larger ships. To avoid Mexican ports of call during the swine flu outbreak of 2009, many cruises were rerouted to include Astoria. The floating residential community MS The World visited Astoria in June 2009. The town's seasonal sport fishing tourism has been active for several decades. Visitors attracted by heritage tourism and the historic elements of the city have supplanted fishing in the economy. Since the early 21st century, the microbrewery/brewpub scene and a weekly street market have helped popularize the area as a destination. In addition to the replicated Fort Clatsop, another point of interest is the Astoria Column, a tower high, built atop Coxcomb Hill above the town. Its inner circular staircase allows visitors to climb to see a panoramic view of the town, the surrounding lands, and the Columbia flowing into the Pacific. The tower was built in 1926. Financing was provided by the Great Northern Railway, seeking to encourage tourists, and Vincent Astor, a great-grandson of John Jacob Astor, in commemoration of the city's role in the family's business history and the region's early history. Since 1998, artistically inclined fishermen and women from Alaska and the Pacific Northwest have traveled to Astoria for the Fisher Poets Gathering, where poets and singers tell their tales to honor the fishing industry and lifestyle. Another popular annual event is the Dark Arts Festival, which features music, art, dance, and demonstrations of craft such as blacksmithing and glassblowing, in combination with offerings of a large array of dark craft brews. Dark Arts Festival began as a small gathering at a community arts space. Now Fort George Brewery hosts the event, which draws hundreds of visitors and tour buses from Seattle. Astoria is the western terminus of the TransAmerica Bicycle Trail, a coast-to-coast bicycle touring route created in 1976 by the Adventure Cycling Association. Three United States Coast Guard cutters: the Steadfast, Alert, and Elm, are homeported in Astoria. Geography According to the United States Census Bureau, the city has a total area of , of which are covered by water. Climate Astoria lies within the Mediterranean climate zone (Köppen Csb), with cool winters and mild summers, although short heat waves can occur. Rainfall is most abundant in late fall and winter and is lightest in July and August, averaging about of rain each year. Snowfall is relatively rare, averaging under a year and frequently having none. Nevertheless, when conditions are ripe, significant snowfalls can occur. Astoria's monthly average humidity is always over 80% throughout the year, with average monthly humidity reaching a high of 84% from November to March, with a low of 81% during May. The average relative humidity in Astoria is 89% in the morning and 73% in the afternoon. Annually, an average of only 4.2 afternoons have temperatures reaching or higher, and readings are rare. Normally, only one or two nights per year occur when the temperature remains at or above . An average of 31 mornings have minimum temperatures at or below the freezing mark. The record high temperature was on July 1, 1942, and June 27, 2021. The record low temperature was on December 8, 1972, and on December 21, 1990. Even with such a cold record low, afternoons usually remain mild in winter. On average, the coldest daytime high is whereas the lowest daytime maximum on record is . Even during brief heat spikes, nights remain cool. The warmest overnight low is set as early in the year as in May during 2008. Nights close to that record are common with the normally warmest night of the year being at . On average, 191 days have measurable precipitation. The wettest "water year", defined as October 1 through September 30 of the next year, was from 1915 to 1916 with and the driest from 2000 to 2001 with . The most rainfall in one month was in December 1933, and the most in 24 hours was on November 25, 1998. The most snowfall in one month was in January 1950, and the most snow in 24 hours was on December 11, 1922. Notes Demographics 2010 census As of the 2010 census, 9,477 people, 4,288 households, and 2,274 families were residing in the city. The population density was . The 4,980 housing units had an average density of . The racial makeup of the city was 89.2% White, 0.6% African American, 1.1% Native American, 1.8% Asian, 0.1% Pacific Islander, 3.9% from other races, and 3.3% from two or more races. Hispanics or Latinos of any race were 9.8% of the population. Of the 4,288 households, 24.6% had children under 18 living with them, 37.9% were married couples living together, 10.8% had a female householder with no husband present, 4.3% had a male householder with no wife present, and 47.0% were not families. About 38.8% of all households were made up of individuals, and 15.1% had someone living alone who was 65 or older. The average household size was 2.15, and the average family size was 2.86. The median age in the city was 41.9 years; 20.3% of residents were under 18; 8.6% were between 18 and 24; 24.3% were from 25 to 44; 29.9% were from 45 to 64; and 17.1% were 65 or older. The gender makeup of the city was 48.4% male and 51.6% female. 2000 census As of the 2000 census, 9,813 people, 4,235 households, and 2,469 families resided in the city. The population density was . The 4,858 housing units had an average density of . The racial makeup of the city was 91.08% White, 0.52% Black or African American, 1.14% Native American, 1.94% Asian, 0.19% Pacific Islander, 2.67% from other races, and 2.46% from two or more races. About 5.98% of the population were Hispanics or Latinos of any race. By ethnicity, 14.2% were German, 11.4% Irish, 10.2% English, 8.3% United States or American, 6.1% Finnish, 5.6% Norwegian, and 5.4% Scottish according to the 2000 United States Census. Of the 4,235 households, 28.8% had children under 18 living with them, 43.5% were married couples living together, 11.2% had a female householder with no husband present, and 41.7% were not families. About 35.4% of all households were made up of individuals, and 13.6% had someone living alone who was 65 or older. The average household size was 2.26, and the average family size was 2.93. In the city the age distribution was 24.0% under 18, 9.1% from 18 to 24, 26.4% from 25 to 44, 24.5% from 45 to 64, and 15.9% were 65 or older. The median age was 38 years. For every 100 females, there were 92.3 males. For every 100 females 18 and over, there were 89.9 males. The median income for a household in the city was $33,011, and for a family was $41,446. Males had a median income of $29,813 versus $22,121 for females. The per capita income for the city was $18,759. About 11.6% of families and 15.9% of the population were below the poverty line, including 22.0% of those under 18 and 9.6% of those 65 or over. Government Astoria operates under a council–manager form of city government. Voters elect four councilors by ward and a mayor, who each serve four-year terms. The mayor and council appoint a city manager to conduct the ordinary business of the city. The current mayor is Sean Fitzpatrick, who took office in January 2023. His predecessor, Bruce Jones, served from 2019 to 2022. Education The Astoria School District has four primary and secondary schools, including Astoria High School. Clatsop Community College is the city's two-year college. The city also has a library and many parks with historical significance, plus the second oldest Job Corps facility (Tongue Point Job Corps) in the nation. Tongue Point Job Corps center is the only such location in the country which provides seamanship training. Media The Astorian (formerly The Daily Astorian) is the main newspaper serving Astoria. It was established , in 1873, and has been in continuous publication since that time. The Coast River Business Journal is a monthly business magazine covering Astoria, Clatsop County, and the Northwest Oregon coast. It, along with The Astorian, is part of the EO Media Group (formerly the East Oregonian Publishing Company) family of Oregon and Washington newspapers. The local NPR station is KMUN 91.9, and KAST 1370 is a local news-talk radio station. In popular culture and entertainment Actor Clark Gable is claimed to have begun his career at the Astoria Theatre in 1922. Leroy E. "Ed" Parsons, called the "Father of Cable Television", developed one of the first community antenna television stations (CATV) in the United States in Astoria starting in 1948. The early 1960s television series Route 66 filmed the episode entitled "One Tiger to a Hill" in Astoria; it was broadcast on September 21, 1962. Shanghaied in Astoria is a musical about Astoria's history that has been performed in Astoria every year since 1984. In recent popular culture, Astoria is most famous for being the setting of the 1985 film The Goonies, which was filmed on location in the city. Other notable movies filmed in Astoria include Short Circuit, The Black Stallion, Kindergarten Cop, Free Willy, Free Willy 2: The Adventure Home, Teenage Mutant Ninja Turtles III, Benji the Hunted, Come See the Paradise, The Ring Two, Into the Wild, The Guardian and Green Room. A scene in "The Real Thing", episode two of season five (in the 7th year), of the television series Eureka was set in Astoria. The character Jo Lupo parks her vehicle in an unauthorized location while she is meditating on the oceanfront. A tow truck is called to remove the vehicle. A law-enforcement officer whose shoulder clearly displays a patch that reads "Astoria, Oregon" speaks to Jo about the parking violation. The fourth album of the pop punk band The Ataris was titled So Long, Astoria as an allusion to The Goonies. A song of the same title is the album's first track. The album's back cover features news clippings from Astoria, including a picture of the port's water tower from a 2002 article on its demolition. The pop punk band Marianas Trench has an album titled Astoria. The band states the album was inspired by 1980s fantasy and adventure films, and The Goonies in particular. That film inspired the title, as it was set in Astoria, the album's artwork, as well as the title of their accompanying US tour (Hey You Guys!!). Astoria is featured as a city in American Truck Simulator: Oregon. In the series finale of the TV show Dexter, the title character, Dexter Morgan, ends up in Astoria as the series ends. Warships named Astoria Two U.S. Navy cruisers were named USS Astoria: A New Orleans-class heavy cruiser (CA-34) and a Cleveland class light cruiser (CL-90). The former was lost in the Pacific Ocean in combat at the Battle of Savo Island in August 1942, during World War II, and the latter was scrapped in 1971 after being removed from active duty in 1949. Museums and other points of interest Astoria Riverwalk with Astoria Riverfront Trolley, Uniontown Neighborhood, Columbia River Maritime Museum, Uppertown Firefighters Museum and Pier 39 Astoria The Astoria Column (the highest point in Astoria) with nearby Cathedral Tree Trail Heritage Museum, located in the Old City Hall Fort Astoria, Fort George Brewery Astor Building, Liberty Theater Museum of Whimsy, Astoria Sunday Market, Garden of Surging Waves, Astoria City Hall Oregon Film Museum, Flavel House Astoria Regional Airport with CGAS Astoria Fort Stevens, Clatsop Spit, Fort Clatsop and Youngs River Falls Sister cities Astoria has one sister city, as designated by Sister Cities International: Walldorf, Germany, which is the birthplace of Astoria's namesake, John Jacob Astor, who was born in Walldorf near Heidelberg on July 17, 1763. The sistercityship was founded on Astor's 200th birthday in 1963 in Walldorf by Walldorf's mayor Wilhelm Willinger and Astoria's mayor Harry Steinbock. Notable people Grouper, American ambient musician, best known for her critically acclaimed album called Dragging a Dead Deer Up a Hill. See also The Clatsop tribe of Native Americans Socialist Party of Oregon § The Finnish Socialists of Astoria Western Workmen's Co-operative Publishing Company Columbia Memorial Hospital Astoria Regional Airport National Register of Historic Places listings in Clatsop County, Oregon — 44 Astoria structures and districts listed (2020) Image gallery References Sources Further reading Ebeling, Herbert C.: Johann Jakob Astor. Walldorf, Germany: Astor-Stiftung, 1998. . Leedom, Karen L.: Astoria: An Oregon History. Astoria, Oregon: Rivertide Publishing, 2008. . Elma MacGibbons reminiscences about her travels in the United States starting in 1898, which were mainly in Oregon and Washington. Includes chapter "Astoria and the Columbia River". External links Entry for Astoria in the Oregon Blue Book Astoria-Warrenton Chamber of Commerce Astoria Documentary produced by Oregon Public Broadcasting 1811 establishments in Oregon Cities in Oregon Populated places established in 1811 Oregon populated places on the Columbia River Cities in Clatsop County, Oregon Port cities in Oregon Populated coastal places in Oregon

1881

https://en.wikipedia.org/wiki/Art%20Deco

Art Deco

Art Deco, short for the French , and sometimes referred to simply as Deco, is a style of visual arts, architecture, and product design, that first appeared in France in the 1910s (just before World War I), and flourished in the United States and Europe during the 1920s to early 1930s. Through styling and design of the exterior and interior of anything from large structures to small objects, including how people look (clothing, fashion and jewelry), Art Deco has influenced bridges, buildings (from skyscrapers to cinemas), ships, ocean liners, trains, cars, trucks, buses, furniture, and everyday objects like radios and vacuum cleaners. Art Deco got its name after the 1925 Exposition internationale des arts décoratifs et industriels modernes (International Exhibition of Modern Decorative and Industrial Arts) held in Paris. Art Deco combined the styles of early 20th century Modernist avant-garde, with the fine craftsmanship and rich materials of French historic design, but also sometimes with motifs taken from non-Western cultures. From its outset, Art Deco was influenced by the bold geometric forms of Cubism and the Vienna Secession; the bright colours of Fauvism and of the Ballets Russes; the updated craftsmanship of the furniture of the eras of Louis XVI and Louis Philippe I; and the exoticized styles of China, Japan, India, Persia, ancient Egypt and Maya art. During its heyday, Art Deco represented luxury, glamour, exuberance, and faith in social and technological progress. The movement featured rare and expensive materials, such as ebony and ivory, and exquisite craftsmanship. The Empire State Building, Chrysler Building, and other skyscrapers of New York City built during the 1920s and 1930s are monuments to the style. In the 1930s, during the Great Depression, Art Deco gradually became more subdued, paving the way for the International Style and Mid-century modern. New materials arrived, including chrome plating, stainless steel and plastic. A sleeker form of the style, called Streamline Moderne, appeared in the 1930s, featuring curving forms and smooth, polished surfaces. Art Deco was a truly international style, but its dominance ended with the beginning of World War II and the rise of the strictly functional and unadorned styles of modern architecture and the International Style of architecture that followed. Etymology Art Deco took its name, short for , from the Exposition Internationale des Arts Décoratifs et Industriels Modernes held in Paris in 1925, though the diverse styles that characterised it had already appeared in Paris and Brussels before World War I. Arts décoratifs was first used in France in 1858 in the Bulletin de la Société française de photographie. In 1868, the Le Figaro newspaper used the term objets d'art décoratifs for objects for stage scenery created for the Théâtre de l'Opéra. In 1875, furniture designers, textile, jewellers, glass-workers, and other craftsmen were officially given the status of artists by the French government. In response, the École royale gratuite de dessin (Royal Free School of Design), founded in 1766 under King Louis XVI to train artists and artisans in crafts relating to the fine arts, was renamed the École nationale des arts décoratifs (National School of Decorative Arts). It took its present name, ENSAD (École nationale supérieure des arts décoratifs), in 1927. At the 1925 Exposition, architect Le Corbusier wrote a series of articles about the exhibition for his magazine L'Esprit Nouveau, under the title "1925 EXPO. ARTS. DÉCO.", which were combined into a book, L'art décoratif d'aujourd'hui (Decorative Art Today). The book was a spirited attack on the excesses of the colourful, lavish objects at the Exposition, and on the idea that practical objects such as furniture should not have any decoration at all; his conclusion was that "Modern decoration has no decoration". The actual term art déco did not appear in print until 1966, in the title of the first modern exhibition on the subject, held by the Museum of Decorative Arts in Paris, Les Années 25 : Art déco, Bauhaus, Stijl, Esprit nouveau, which covered a variety of major styles in the 1920s and 1930s. The term was then used in a 1966 newspaper article by Hillary Gelson in The Times (London, 12 November), describing the different styles at the exhibit. Art Deco gained currency as a broadly applied stylistic label in 1968 when historian Bevis Hillier published the first major academic book on it, Art Deco of the 20s and 30s. He noted that the term was already being used by art dealers, and cites The Times (2 November 1966) and an essay named Les Arts Déco in Elle magazine (November 1967) as examples. In 1971, he organized an exhibition at the Minneapolis Institute of Arts, which he details in his book The World of Art Deco. It's also important to mention that, in its time, Art Deco was not only tagged with other names, like style moderne, Moderne, modernistic or style contemporain, but it was also not recognized at the theoretical level as a distinct and homogenous style. Origins Society of Decorative Artists (1901–1945) The emergence of Art Deco was closely connected with the rise in status of decorative artists, who until late in the 19th century were considered simply artisans. The term had been invented in 1875, giving the designers of furniture, textiles, and other decoration official status. The Société des artistes décorateurs (Society of Decorative Artists), or SAD, was founded in 1901, and decorative artists were given the same rights of authorship as painters and sculptors. A similar movement developed in Italy. The first international exhibition devoted entirely to the decorative arts, the Esposizione Internazionale d'Arte Decorativa Moderna, was held in Turin in 1902. Several new magazines devoted to decorative arts were founded in Paris, including Arts et décoration and L'Art décoratif moderne. Decorative arts sections were introduced into the annual salons of the Sociéte des artistes français, and later in the Salon d'Automne. French nationalism also played a part in the resurgence of decorative arts, as French designers felt challenged by the increasing exports of less expensive German furnishings. In 1911, SAD proposed a major new international exposition of decorative arts in 1912. No copies of old styles would be permitted, only modern works. The exhibit was postponed until 1914; and then, because of the war, until 1925, when it gave its name to the whole family of styles known as "Déco". Parisian department stores and fashion designers also played an important part in the rise of Art Deco. Prominent businesses such as silverware firm Christofle, glass designer René Lalique, and the jewellers Louis Cartier and Boucheron began designing products in more modern styles. Beginning in 1900, department stores recruited decorative artists to work in their design studios. The decoration of the 1912 Salon d'Automne was entrusted to the department store Printemps, and that year it created its own workshop, Primavera. By 1920 Primavera employed more than 300 artists, whose styles ranged from updated versions of Louis XIV, Louis XVI, and especially Louis Philippe furniture made by Louis Süe and the Primavera workshop, to more modern forms from the workshop of the Au Louvre department store. Other designers, including Émile-Jacques Ruhlmann and Paul Follot, refused to use mass production, insisting that each piece be made individually. The early Art Deco style featured luxurious and exotic materials such as ebony, ivory and silk, very bright colours and stylized motifs, particularly baskets and bouquets of flowers of all colours, giving a modernist look. Vienna Secession and Wiener Werkstätte (1897–1912) The architects of the Vienna Secession (formed 1897), especially Josef Hoffmann, had a notable influence on Art Deco. His Stoclet Palace, in Brussels (1905–1911), was a prototype of the Art Deco style, featuring geometric volumes, symmetry, straight lines, concrete covered with marble plaques, finely-sculpted ornament, and lavish interiors, including mosaic friezes by Gustav Klimt. Hoffmann was also a founder of the Wiener Werkstätte (1903–1932), an association of craftsmen and interior designers working in the new style. This became the model for the Compagnie des arts français, created in 1919, which brought together André Mare, and Louis Süe, the first leading French Art Deco designers and decorators. New materials and technologies New materials and technologies, especially reinforced concrete, were key to the development and appearance of Art Deco. The first concrete house was built in 1853 in the Paris suburbs by François Coignet. In 1877 Joseph Monier introduced the idea of strengthening the concrete with a mesh of iron rods in a grill pattern. In 1893 Auguste Perret built the first concrete garage in Paris, then an apartment building, house, then, in 1913, the Théâtre des Champs-Élysées. The theatre was denounced by one critic as the "Zeppelin of Avenue Montaigne", an alleged Germanic influence, copied from the Vienna Secession. Thereafter, the majority of Art Deco buildings were made of reinforced concrete, which gave greater freedom of form and less need for reinforcing pillars and columns. Perret was also a pioneer in covering the concrete with ceramic tiles, both for protection and decoration. The architect Le Corbusier first learned the uses of reinforced concrete working as a draftsman in Perret's studio. Other new technologies that were important to Art Deco were new methods in producing plate glass, which was less expensive and allowed much larger and stronger windows, and for mass-producing aluminium, which was used for building and window frames and later, by Corbusier, Warren McArthur, and others, for lightweight furniture. Théâtre des Champs-Élysées (1910–1913) The Théâtre des Champs-Élysées (1910–1913), by Auguste Perret, was the first landmark Art Deco building completed in Paris. Previously, reinforced concrete had been used only for industrial and apartment buildings, Perret had built the first modern reinforced-concrete apartment building in Paris on rue Benjamin Franklin in 1903–04. Henri Sauvage, another important future Art Deco architect, built another in 1904 at 7, rue Trétaigne (1904). From 1908 to 1910, the 21-year-old Le Corbusier worked as a draftsman in Perret's office, learning the techniques of concrete construction. Perret's building had clean rectangular form, geometric decoration and straight lines, the future trademarks of Art Deco. The décor of the theatre was also revolutionary; the façade was decorated with high reliefs by Antoine Bourdelle, a dome by Maurice Denis, paintings by Édouard Vuillard, and an Art Deco curtain by Ker-Xavier Roussel. The theatre became the venue for many of the first performances of the Ballets Russes. Perret and Sauvage became the leading Art Deco architects in Paris in the 1920s. Salon d'Automne (1903–1914) At its birth between 1910 and 1914, Art Deco was an explosion of colours, featuring bright and often clashing hues, frequently in floral designs, presented in furniture upholstery, carpets, screens, wallpaper and fabrics. Many colourful works, including chairs and a table by Maurice Dufrêne and a bright Gobelin carpet by Paul Follot were presented at the 1912 Salon des artistes décorateurs. In 1912–1913 designer Adrien Karbowsky made a floral chair with a parrot design for the hunting lodge of art collector Jacques Doucet. The furniture designers Louis Süe and André Mare made their first appearance at the 1912 exhibit, under the name of the Atelier français, combining polychromatic fabrics with exotic and expensive materials, including ebony and ivory. After World War I, they became one of the most prominent French interior design firms, producing the furniture for the first-class salons and cabins of the French transatlantic ocean liners. The vivid hues of Art Deco came from many sources, including the exotic set designs by Léon Bakst for the Ballets Russes, which caused a sensation in Paris just before World War I. Some of the colours were inspired by the earlier Fauvism movement led by Henri Matisse; others by the Orphism of painters such as Sonia Delaunay; others by the movement known as Les Nabis, and in the work of symbolist painter Odilon Redon, who designed fireplace screens and other decorative objects. Bright shades were a feature of the work of fashion designer Paul Poiret, whose work influenced both Art Deco fashion and interior design. Cubism The art movement known as Cubism appeared in France between 1907 and 1912, influencing the development of Art Deco. In Art Deco Complete: The Definitive Guide to the Decorative Arts of the 1920s and 1930s Alastair Duncan writes "Cubism, in some bastardized form or other, became the lingua franca of the era's decorative artists." The Cubists, themselves under the influence of Paul Cézanne, were interested in the simplification of forms to their geometric essentials: the cylinder, the sphere, the cone. In 1912, the artists of the Section d'Or exhibited works considerably more accessible to the general public than the analytical Cubism of Picasso and Braque. The Cubist vocabulary was poised to attract fashion, furniture and interior designers. The 1912 writings of André Vera, Le Nouveau style, published in the journal L'Art décoratif, expressed the rejection of Art Nouveau forms (asymmetric, polychrome and picturesque) and called for simplicité volontaire, symétrie manifeste, l'ordre et l'harmonie, themes that would eventually become common within Art Deco; though the Deco style was often extremely colourful and often complex. In the Art Décoratif section of the 1912 Salon d'Automne, an architectural installation was exhibited known as La Maison Cubiste. The façade was designed by Raymond Duchamp-Villon. The décor of the house was by André Mare. La Maison Cubiste was a furnished installation with a façade, a staircase, wrought iron banisters, a bedroom, a living room—the Salon Bourgeois, where paintings by Albert Gleizes, Jean Metzinger, Marie Laurencin, Marcel Duchamp, Fernand Léger and Roger de La Fresnaye were hung. Thousands of spectators at the salon passed through the full-scale model. The façade of the house, designed by Duchamp-Villon, was not very radical by modern standards; the lintels and pediments had prismatic shapes, but otherwise the façade resembled an ordinary house of the period. For the two rooms, Mare designed the wallpaper, which featured stylized roses and floral patterns, along with upholstery, furniture and carpets, all with flamboyant and colourful motifs. It was a distinct break from traditional décor. The critic Emile Sedeyn described Mare's work in the magazine Art et Décoration: "He does not embarrass himself with simplicity, for he multiplies flowers wherever they can be put. The effect he seeks is obviously one of picturesqueness and gaiety. He achieves it." The Cubist element was provided by the paintings. The installation was attacked by some critics as extremely radical, which helped make for its success. This architectural installation was subsequently exhibited at the 1913 Armory Show, New York City, Chicago and Boston. Thanks largely to the exhibition, the term "Cubist" began to be applied to anything modern, from women's haircuts to clothing to theater performances." The Cubist influence continued within Art Deco, even as Deco branched out in many other directions. In 1927, Cubists Joseph Csaky, Jacques Lipchitz, Louis Marcoussis, Henri Laurens, the sculptor Gustave Miklos, and others collaborated in the decoration of a Studio House, rue Saint-James, Neuilly-sur-Seine, designed by the architect Paul Ruaud and owned by the French fashion designer Jacques Doucet, also a collector of Post-Impressionist art by Henri Matisse and Cubist paintings (including Les Demoiselles d'Avignon, which he bought directly from Picasso's studio). Laurens designed the fountain, Csaky designed Doucet's staircase, Lipchitz made the fireplace mantel, and Marcoussis made a Cubist rug. Besides the Cubist artists, Doucet brought in other Deco interior designers to help in decorating the house, including Pierre Legrain, who was in charge of organizing the decoration, and Paul Iribe, Marcel Coard, André Groult, Eileen Gray and Rose Adler to provide furniture. The décor included massive pieces made of macassar ebony, inspired by African art, and furniture covered with Morocco leather, crocodile skin and snakeskin, and patterns taken from African designs. Cubism's adumbrated geometry became coin of the realm in the 1920s. Art Deco's development of Cubism's selective geometry into a wider array of shapes carried Cubism as a pictorial taxonomy to a much broader audience and wider appeal. (Richard Harrison Martin, Metropolitan Museum of Art) Influences Pre-WW1 past Art Deco was not a single style, but a collection of different and sometimes contradictory styles. In architecture, Art Deco was the successor to and reaction against Art Nouveau, a style which flourished in Europe between 1895 and 1900, and coexisted with the Beaux-Arts and neoclassical that were predominant in European and American architecture. In 1905 Eugène Grasset wrote and published Méthode de Composition Ornementale, Éléments Rectilignes, in which he systematically explored the decorative (ornamental) aspects of geometric elements, forms, motifs and their variations, in contrast with (and as a departure from) the undulating Art Nouveau style of Hector Guimard, so popular in Paris a few years earlier. Grasset stressed the principle that various simple geometric shapes like triangles and squares are the basis of all compositional arrangements. The reinforced-concrete buildings of Auguste Perret and Henri Sauvage, and particularly the Théâtre des Champs-Élysées, offered a new form of construction and decoration which was copied worldwide. Ancient and non-European civilizations In decoration, many different styles were borrowed and used by Art Deco. They included pre-modern art from around the world and observable at the Musée du Louvre, Musée de l'Homme and the Musée national des Arts d'Afrique et d'Océanie. There was also popular interest in archaeology due to excavations at Pompeii, Troy, and the tomb of the 18th dynasty Pharaoh Tutankhamun. Artists and designers integrated motifs from ancient Egypt, Africa, Mesopotamia, Greece, Rome, Asia, Mesoamerica and Oceania with Machine Age elements. Early 20th century avant-garde movements Other styles borrowed included Futurism, Orphism, Functionalism, and Modernism in general. Cubism discovers its decorative potential within the Art Deco aesthetic, when transposed from the canvas onto a textile material or wallpaper. Sonia Delaunay conceives her dress models in an abstract and geometric style, "as live paintings or sculptures of living forms". Cubist-like designs are created by Louis Barrilet in the stained-glass windows of the American bar at the Atrium Casino in Dax (1926), but also including names of fashionable cocktails. In architecture, the clear contrast between horizontal and vertical volumes, specific both to Russian Constructivism and the Frank Lloyd Wright-Willem Marinus Dudok line, becomes a common device in articulating Art Deco façades, from individual homes and tenement buildings to cinemas or oil stations. Art Deco also used the clashing colours and designs of Fauvism, notably in the work of Henri Matisse and André Derain, inspired the designs of art deco textiles, wallpaper, and painted ceramics. It took ideas from the high fashion vocabulary of the period, which featured geometric designs, chevrons, zigzags, and stylized bouquets of flowers. It was influenced by discoveries in Egyptology, and growing interest in the Orient and in African art. From 1925 onwards, it was often inspired by a passion for new machines, such as airships, automobiles and ocean liners, and by 1930 this influence resulted in the style called Streamline Moderne. Style of luxury and modernity Art Deco was associated with both luxury and modernity; it combined very expensive materials and exquisite craftsmanship put into modernistic forms. Nothing was cheap about Art Deco: pieces of furniture included ivory and silver inlays, and pieces of Art Deco jewellery combined diamonds with platinum, jade, coral and other precious materials. The style was used to decorate the first-class salons of ocean liners, deluxe trains, and skyscrapers. It was used around the world to decorate the great movie palaces of the late 1920s and 1930s. Later, after the Great Depression, the style changed and became more sober. A good example of the luxury style of Art Deco is the boudoir of the fashion designer Jeanne Lanvin, designed by Armand-Albert Rateau (1882–1938) made between 1922 and 1925. It was located in her house at 16 rue Barbet de Jouy, in Paris, which was demolished in 1965. The room was reconstructed in the Museum of Decorative Arts in Paris. The walls are covered with moulded lambris below sculpted bas-reliefs in stucco. The alcove is framed with columns of marble on bases and a plinth of sculpted wood. The floor is of white and black marble, and in the cabinets decorative objects are displayed against a background of blue silk. Her bathroom had a tub and washstand made of sienna marble, with a wall of carved stucco and bronze fittings. By 1928 the style had become more comfortable, with deep leather club chairs. The study designed by the Paris firm of Alavoine for an American businessman in 1928–30, is now in the Brooklyn Museum. By the 1930s, the style had been somewhat simplified, but it was still extravagant. In 1932 the decorator Paul Ruaud made the Glass Salon for Suzanne Talbot. It featured a serpentine armchair and two tubular armchairs by Eileen Gray, a floor of mat silvered glass slabs, a panel of abstract patterns in silver and black lacquer, and an assortment of animal skins. International Exhibition of Modern Decorative and Industrial Arts (1925) The event that marked the zenith of the style and gave it its name was the International Exhibition of Modern Decorative and Industrial Arts which took place in Paris from April to October in 1925. This was officially sponsored by the French government, and covered a site in Paris of 55 acres, running from the Grand Palais on the right bank to Les Invalides on the left bank, and along the banks of the Seine. The Grand Palais, the largest hall in the city, was filled with exhibits of decorative arts from the participating countries. There were 15,000 exhibitors from twenty different countries, including Austria, Belgium, Czechoslovakia, Denmark, Great Britain, Italy, Japan, the Netherlands, Poland, Spain, Sweden, and the new Soviet Union. Germany was not invited because of tensions after the war; The United States, misunderstanding the purpose of the exhibit, declined to participate. The event was visited by sixteen million people during its seven-month run. The rules of the exhibition required that all work be modern; no historical styles were allowed. The main purpose of the Exhibit was to promote the French manufacturers of luxury furniture, porcelain, glass, metalwork, textiles, and other decorative products. To further promote the products, all the major Paris department stores, and major designers had their own pavilions. The Exposition had a secondary purpose in promoting products from French colonies in Africa and Asia, including ivory and exotic woods. The Hôtel du Collectionneur was a popular attraction at the Exposition; it displayed the new furniture designs of Emile-Jacques Ruhlmann, as well as Art Deco fabrics, carpets, and a painting by Jean Dupas. The interior design followed the same principles of symmetry and geometric forms which set it apart from Art Nouveau, and bright colours, fine craftsmanship rare and expensive materials which set it apart from the strict functionality of the Modernist style. While most of the pavilions were lavishly decorated and filled with hand-made luxury furniture, two pavilions, those of the Soviet Union and Pavilion de L'Esprit Nouveau, built by the magazine of that name run by Le Corbusier, were built in an austere style with plain white walls and no decoration; they were among the earliest examples of modernist architecture. Late Art Deco In 1925, two different competing schools coexisted within Art Deco: the traditionalists, who had founded the Society of Decorative Artists; included the furniture designer Emile-Jacques Ruhlmann, Jean Dunand, the sculptor Antoine Bourdelle, and designer Paul Poiret; they combined modern forms with traditional craftsmanship and expensive materials. On the other side were the modernists, who increasingly rejected the past and wanted a style based upon advances in new technologies, simplicity, a lack of decoration, inexpensive materials, and mass production. The modernists founded their own organisation, The French Union of Modern Artists, in 1929. Its members included architects Pierre Chareau, Francis Jourdain, Robert Mallet-Stevens, Corbusier, and, in the Soviet Union, Konstantin Melnikov; the Irish designer Eileen Gray; the French designer Sonia Delaunay; and the jewellers Georges Fouquet and Jean Puiforcat. They fiercely attacked the traditional art deco style, which they said was created only for the wealthy, and insisted that well-constructed buildings should be available to everyone, and that form should follow function. The beauty of an object or building resided in whether it was perfectly fit to fulfil its function. Modern industrial methods meant that furniture and buildings could be mass-produced, not made by hand. The Art Deco interior designer Paul Follot defended Art Deco in this way: "We know that man is never content with the indispensable and that the superfluous is always needed...If not, we would have to get rid of music, flowers, and perfumes..!" However, Le Corbusier was a brilliant publicist for modernist architecture; he stated that a house was simply "a machine to live in", and tirelessly promoted the idea that Art Deco was the past and modernism was the future. Le Corbusier's ideas were gradually adopted by architecture schools, and the aesthetics of Art Deco were abandoned. The same features that made Art Deco popular in the beginning, its craftsmanship, rich materials and ornament, led to its decline. The Great Depression that began in the United States in 1929, and reached Europe shortly afterwards, greatly reduced the number of wealthy clients who could pay for the furnishings and art objects. In the Depression economic climate, few companies were ready to build new skyscrapers. Even the Ruhlmann firm resorted to producing pieces of furniture in series, rather than individual hand-made items. The last buildings built in Paris in the new style were the Museum of Public Works by Auguste Perret (now the French Economic, Social and Environmental Council), the Palais de Chaillot by Louis-Hippolyte Boileau, Jacques Carlu and Léon Azéma, and the Palais de Tokyo of the 1937 Paris International Exposition; they looked out at the grandiose pavilion of Nazi Germany, designed by Albert Speer, which faced the equally grandiose socialist-realist pavilion of Stalin's Soviet Union. After World War II, the dominant architectural style became the International Style pioneered by Le Corbusier, and Mies van der Rohe. A handful of Art Deco hotels were built in Miami Beach after World War II, but elsewhere the style largely vanished, except in industrial design, where it continued to be used in automobile styling and products such as jukeboxes. In the 1960s, it experienced a modest academic revival, thanks in part to the writings of architectural historians such as Bevis Hillier. In the 1970s efforts were made in the United States and Europe to preserve the best examples of Art Deco architecture, and many buildings were restored and repurposed. Postmodern architecture, which first appeared in the 1980s, like Art Deco, often includes purely decorative features. Deco continues to inspire designers, and is often used in contemporary fashion, jewellery, and toiletries. Painting There was no section set aside for painting at the 1925 Exposition. Art deco painting was by definition decorative, designed to decorate a room or work of architecture, so few painters worked exclusively in the style, but two painters are closely associated with Art Deco. Jean Dupas painted Art Deco murals for the Bordeaux Pavilion at the 1925 Decorative Arts Exposition in Paris, and also painted the picture over the fireplace in the Maison du Collectionneur exhibit at the 1925 Exposition, which featured furniture by Ruhlmann and other prominent Art Deco designers. His murals were also prominent in the décor of the French ocean liner SS Normandie. His work was purely decorative, designed as a background or accompaniment to other elements of the décor. The other painter closely associated with the style is Tamara de Lempicka. Born in Poland, she emigrated to Paris after the Russian Revolution. She studied under Maurice Denis and André Lhote, and borrowed many elements from their styles. She painted portraits in a realistic, dynamic and colourful Art Deco style. In the 1930s a dramatic new form of Art Deco painting appeared in the United States. During the Great Depression, the Federal Art Project of the Works Progress Administration was created to give work to unemployed artists. Many were given the task of decorating government buildings, hospitals and schools. There was no specific art deco style used in the murals; artists engaged to paint murals in government buildings came from many different schools, from American regionalism to social realism; they included Reginald Marsh, Rockwell Kent and the Mexican painter Diego Rivera. The murals were Art Deco because they were all decorative and related to the activities in the building or city where they were painted: Reginald Marsh and Rockwell Kent both decorated U.S. postal buildings, and showed postal employees at work while Diego Rivera depicted automobile factory workers for the Detroit Institute of Arts. Diego Rivera's mural Man at the Crossroads (1933) for 30 Rockefeller Plaza featured an unauthorized portrait of Lenin. When Rivera refused to remove Lenin, the painting was destroyed and a new mural was painted by the Spanish artist Josep Maria Sert. Sculpture Monumental and public sculpture Sculpture was a very common and integral feature of Art Deco architecture. In France, allegorical bas-reliefs representing dance and music by Antoine Bourdelle decorated the earliest Art Deco landmark in Paris, the Théâtre des Champs-Élysées, in 1912. The 1925 Exposition had major sculptural works placed around the site, pavilions were decorated with sculptural friezes, and several pavilions devoted to smaller studio sculpture. In the 1930s, a large group of prominent sculptors made works for the 1937 at Chaillot. Alfred Janniot made the relief sculptures on the façade of the Palais de Tokyo. The Musée d'Art Moderne de la Ville de Paris, and the esplanade in front of the Palais de Chaillot, facing the Eiffel Tower, was crowded with new statuary by Charles Malfray, Henry Arnold, and many others. Public art deco sculpture was almost always representational, usually of heroic or allegorical figures related to the purpose of the building or room. The themes were usually selected by the patrons, not the artist. Abstract sculpture for decoration was extremely rare. In the United States, the most prominent Art Deco sculptor for public art was Paul Manship, who updated classical and mythological subjects and themes in an Art Deco style. His most famous work was the statue of Prometheus at Rockefeller Center in New York City, a 20th-century adaptation of a classical subject. Other important works for Rockefeller Center were made by Lee Lawrie, including the sculptural façade and the Atlas statue. During the Great Depression in the United States, many sculptors were commissioned to make works for the decoration of federal government buildings, with funds provided by the WPA, or Works Progress Administration. They included sculptor Sidney Biehler Waugh, who created stylized and idealized images of workers and their tasks for federal government office buildings. In San Francisco, Ralph Stackpole provided sculpture for the façade of the new San Francisco Stock Exchange building. In Washington D.C., Michael Lantz made works for the Federal Trade Commission building. In Britain, Deco public statuary was made by Eric Gill for the BBC Broadcasting House, while Ronald Atkinson decorated the lobby of the former Daily Express Building in London (1932). One of the best known and certainly the largest public Art Deco sculpture is the Christ the Redeemer by the French sculptor Paul Landowski, completed between 1922 and 1931, located on a mountain top overlooking Rio de Janeiro, Brazil. Studio sculpture Many early Art Deco sculptures were small, designed to decorate salons. One genre of this sculpture was called the Chryselephantine statuette, named for a style of ancient Greek temple statues made of gold and ivory. They were sometimes made of bronze, or sometimes with much more lavish materials, such as ivory, onyx, alabaster, and gold leaf. One of the best-known Art Deco salon sculptors was the Romanian-born Demétre Chiparus, who produced colourful small sculptures of dancers. Other notable salon sculptors included Ferdinand Preiss, Josef Lorenzl, Alexander Kelety, Dorothea Charol and Gustav Schmidtcassel. Another important American sculptor in the studio format was Harriet Whitney Frishmuth, who had studied with Auguste Rodin in Paris. Pierre Le Paguays was a prominent Art Deco studio sculptor, whose work was shown at the 1925 Exposition. He worked with bronze, marble, ivory, onyx, gold, alabaster and other precious materials. François Pompon was a pioneer of modern stylised animalier sculpture. He was not fully recognised for his artistic accomplishments until the age of 67 at the Salon d'Automne of 1922 with the work Ours blanc, also known as The White Bear, now in the Musée d'Orsay in Paris. Parallel with these Art Deco sculptors, more avant-garde and abstract modernist sculptors were at work in Paris and New York City. The most prominent were Constantin Brâncuși, Joseph Csaky, Alexander Archipenko, Henri Laurens, Jacques Lipchitz, Gustave Miklos, Jean Lambert-Rucki, Jan et Joël Martel, Chana Orloff and Pablo Gargallo. Graphic arts The Art Deco style appeared early in the graphic arts, in the years just before World War I. It appeared in Paris in the posters and the costume designs of Léon Bakst for the Ballets Russes, and in the catalogues of the fashion designers Paul Poiret. The illustrations of Georges Barbier, and Georges Lepape and the images in the fashion magazine La Gazette du bon ton perfectly captured the elegance and sensuality of the style. In the 1920s, the look changed; the fashions stressed were more casual, sportive and daring, with the woman models usually smoking cigarettes. American fashion magazines such as Vogue, Vanity Fair and Harper's Bazaar quickly picked up the new style and popularized it in the United States. It also influenced the work of American book illustrators such as Rockwell Kent. In Germany, the most famous poster artist of the period was Ludwig Hohlwein, who created colourful and dramatic posters for music festivals, beers, and, late in his career, for the Nazi Party. During the Art Nouveau period, posters usually advertised theatrical products or cabarets. In the 1920s, travel posters, made for steamship lines and airlines, became extremely popular. The style changed notably in the 1920s, to focus attention on the product being advertised. The images became simpler, precise, more linear, more dynamic, and were often placed against a single-color background. In France, popular Art Deco designers included Charles Loupot and Paul Colin, who became famous for his posters of American singer and dancer Josephine Baker. Jean Carlu designed posters for Charlie Chaplin movies, soaps, and theatres; in the late 1930s he emigrated to the United States, where, during the World War, he designed posters to encourage war production. The designer Charles Gesmar became famous making posters for the singer Mistinguett and for Air France. Among the best-known French Art Deco poster designers was Cassandre, who made the celebrated poster of the ocean liner SS Normandie in 1935. In the 1930s a new genre of posters appeared in the United States during the Great Depression. The Federal Art Project hired American artists to create posters to promote tourism and cultural events. Architecture The architectural style of art deco made its debut in Paris in 1903–04, with the construction of two apartment buildings in Paris, one by Auguste Perret on rue Benjamin Franklin and the other on rue Trétaigne by Henri Sauvage. The two young architects used reinforced concrete for the first time in Paris residential buildings; the new buildings had clean lines, rectangular forms, and no decoration on the façades; they marked a clean break with the art nouveau style. Between 1910 and 1913, Perret used his experience in concrete apartment buildings to construct the Théâtre des Champs-Élysées, 15 avenue Montaigne. Between 1925 and 1928 Sauvage constructed the new art deco façade of La Samaritaine department store in Paris. The Art Deco style was not limited to buildings on land; the ocean liner SS Normandie, whose first voyage was in 1935, featured Art Deco design, including a dining room whose ceiling and decoration were made of glass by Lalique. Skyscrapers American skyscrapers marked the summit of the Art Deco style; they became the tallest and most recognizable modern buildings in the world. They were designed to show the prestige of their builders through their height, their shape, their color, and their dramatic illumination at night. The American Radiator Building by Raymond Hood (1924) combined Gothic and Deco modern elements in the design of the building. Black brick on the frontage of the building (symbolizing coal) was selected to give an idea of solidity and to give the building a solid mass. Other parts of the façade were covered in gold bricks (symbolizing fire), and the entry was decorated with marble and black mirrors. Another early Art Deco skyscraper was Detroit's Guardian Building, which opened in 1929. Designed by modernist Wirt C. Rowland, the building was the first to employ stainless steel as a decorative element, and the extensive use of colored designs in place of traditional ornaments. New York City's skyline was radically changed by the Chrysler Building in Manhattan (completed in 1930), designed by William Van Alen. It was a giant seventy-seven-floor tall advertisement for Chrysler automobiles. The top was crowned by a stainless steel spire, and was ornamented by deco "gargoyles" in the form of stainless steel radiator cap decorations. The base of the tower, thirty-three stories above the street, was decorated with colorful art deco friezes, and the lobby was decorated with art deco symbols and images expressing modernity. The Chrysler Building was soon surpassed in height by the Empire State Building by William F. Lamb (1931), in a slightly less lavish Deco style and the RCA Building (now 30 Rockefeller Plaza) by Raymond Hood (1933) which together completely changed New York City's skyline. The tops of the buildings were decorated with Art Deco crowns and spires covered with stainless steel, and, in the case of the Chrysler building, with Art Deco gargoyles modeled after radiator ornaments, while the entrances and lobbies were lavishly decorated with Art Deco sculpture, ceramics, and design. Similar buildings, though not quite as tall, soon appeared in Chicago and other large American cities. Rockefeller Center added a new design element: several tall buildings grouped around an open plaza, with a fountain in the middle. "Cathedrals of Commerce" The grand showcases of American Art Deco interior design were the lobbies of government buildings, theaters, and particularly office buildings. Interiors were extremely colorful and dynamic, combining sculpture, murals, and ornate geometric design in marble, glass, ceramics and stainless steel. An early example was the Fisher Building in Detroit, by Joseph Nathaniel French; the lobby was highly decorated with sculpture and ceramics. The Guardian Building (originally the Union Trust Building) in Detroit, by Wirt Rowland (1929), decorated with red and black marble and brightly colored ceramics, highlighted by highly polished steel elevator doors and counters. The sculptural decoration installed in the walls illustrated the virtues of industry and saving; the building was immediately termed the "Cathedral of Commerce". The Medical and Dental Building called 450 Sutter Street in San Francisco by Timothy Pflueger was inspired by Mayan architecture, in a highly stylized form; it used pyramid shapes, and the interior walls were covered with highly stylized rows of hieroglyphs. In France, the best example of an Art Deco interior during this period was the Palais de la Porte Dorée (1931) by Albert Laprade, Léon Jaussely and Léon Bazin. The building (now the National Museum of Immigration, with an aquarium in the basement) was built for the Paris Colonial Exposition of 1931, to celebrate the people and products of French colonies. The exterior façade was entirely covered with sculpture, and the lobby created an Art Deco harmony with a wood parquet floor in a geometric pattern, a mural depicting the people of French colonies; and a harmonious composition of vertical doors and horizontal balconies. Movie palaces Many of the best surviving examples of Art Deco are cinemas built in the 1920s and 1930s. The Art Deco period coincided with the conversion of silent films to sound, and movie companies built large display destinations in major cities to capture the huge audience that came to see movies. Movie palaces in the 1920s often combined exotic themes with art deco style; Grauman's Egyptian Theatre in Hollywood (1922) was inspired by ancient Egyptian tombs and pyramids, while the Fox Theater in Bakersfield, California attached a tower in California Mission style to an Art Deco Hall. The largest of all is Radio City Music Hall in New York City, which opened in 1932. Originally designed as theatrical performance space, it quickly transformed into a cinema, which could seat 6,015 customers. The interior design by Donald Deskey used glass, aluminum, chrome, and leather to create a visual escape from reality. The Paramount Theatre in Oakland, California, by Timothy Pflueger, had a colorful ceramic façade, a lobby four stories high, and separate Art Deco smoking rooms for gentlemen and ladies. Similar grand palaces appeared in Europe. The Grand Rex in Paris (1932), with its imposing tower, was the largest cinema in Europe after the 6,000 seats of the Gaumont-Palace (1931-1973). The Gaumont State Cinema in London (1937) had a tower modelled on the Empire State building, covered with cream ceramic tiles and an interior in an Art Deco-Italian Renaissance style. The Paramount Theatre in Shanghai, China (1933) was originally built as a dance hall called The gate of 100 pleasures; it was converted to a cinema after the Communist Revolution in 1949, and now is a ballroom and disco. In the 1930s Italian architects built a small movie palace, the Cinema Impero, in Asmara in what is now Eritrea. Today, many of the movie theatres have been subdivided into multiplexes, but others have been restored and are used as cultural centres in their communities. Streamline Moderne In the late 1930s, a new variety of Art Deco architecture became common; it was called Streamline Moderne or simply Streamline, or, in France, the Style Paquebot, or Ocean Liner style. Buildings in the style had rounded corners and long horizontal lines; they were built of reinforced concrete and were almost always white; and they sometimes had nautical features, such as railings and portholes that resembled those on a ship. The rounded corner was not entirely new; it had appeared in Berlin in 1923 in the Mossehaus by Erich Mendelsohn, and later in the Hoover Building, an industrial complex in the London suburb of Perivale. In the United States, it became most closely associated with transport; Streamline moderne was rare in office buildings but was often used for bus stations and airport terminals, such as the terminal at La Guardia airport in New York City that handled the first transatlantic flights, via the PanAm Clipper flying boats; and in roadside architecture, such as gas stations and diners. In the late 1930s a series of diners, modelled upon streamlined railroad cars, were produced and installed in towns in New England; at least two examples still remain and are now registered historic buildings. Decoration and motifs Decoration in the Art Deco period went through several distinct phases. Between 1910 and 1920, as Art Nouveau was exhausted, design styles saw a return to tradition, particularly in the work of Paul Iribe. In 1912 André Vera published an essay in the magazine L'Art Décoratif calling for a return to the craftsmanship and materials of earlier centuries and using a new repertoire of forms taken from nature, particularly baskets and garlands of fruit and flowers. A second tendency of Art Deco, also from 1910 to 1920, was inspired by the bright colours of the artistic movement known as the Fauves and by the colourful costumes and sets of the Ballets Russes. This style was often expressed with exotic materials such as sharkskin, mother of pearl, ivory, tinted leather, lacquered and painted wood, and decorative inlays on furniture that emphasized its geometry. This period of the style reached its high point in the 1925 Paris Exposition of Decorative Arts. In the late 1920s and the 1930s, the decorative style changed, inspired by new materials and technologies. It became sleeker and less ornamental. Furniture, like architecture, began to have rounded edges and to take on a polished, streamlined look, taken from the streamline modern style. New materials, such as nickel or chrome-plated steel, aluminium and bakelite, an early form of plastic, began to appear in furniture and decoration. Throughout the Art Deco period, and particularly in the 1930s, the motifs of the décor expressed the function of the building. Theatres were decorated with sculpture which illustrated music, dance, and excitement; power companies showed sunrises, the Chrysler building showed stylized hood ornaments; The friezes of Palais de la Porte Dorée at the 1931 Paris Colonial Exposition showed the faces of the different nationalities of French colonies. The Streamline style made it appear that the building itself was in motion. The WPA murals of the 1930s featured ordinary people; factory workers, postal workers, families and farmers, in place of classical heroes. Furniture French furniture from 1910 until the early 1920s was largely an updating of French traditional furniture styles, and the art nouveau designs of Louis Majorelle, Charles Plumet and other manufacturers. French furniture manufacturers felt threatened by the growing popularity of German manufacturers and styles, particularly the Biedermeier style, which was simple and clean-lined. The French designer Frantz Jourdain, the President of the Paris Salon d'Automne, invited designers from Munich to participate in the 1910 Salon. French designers saw the new German style and decided to meet the German challenge. The French designers decided to present new French styles in the Salon of 1912. The rules of the Salon indicated that only modern styles would be permitted. All of the major French furniture designers took part in Salon: Paul Follot, Paul Iribe, Maurice Dufrêne, André Groult, André Mare and Louis Suë took part, presenting new works that updated the traditional French styles of Louis XVI and Louis Philippe with more angular corners inspired by Cubism and brighter colours inspired by Fauvism and the Nabis. The painter André Mare and furniture designer Louis Süe both participated the 1912 Salon. After the war the two men joined to form their own company, formally called the Compagnie des Arts Française, but usually known simply as Suë and Mare. Unlike the prominent art nouveau designers like Louis Majorelle, who personally designed every piece, they assembled a team of skilled craftsmen and produced complete interior designs, including furniture, glassware, carpets, ceramics, wallpaper and lighting. Their work featured bright colors and furniture and fine woods, such as ebony encrusted with mother of pearl, abalone and silvered metal to create bouquets of flowers. They designed everything from the interiors of ocean liners to perfume bottles for the label of Jean Patou.The firm prospered in the early 1920s, but the two men were better craftsmen than businessmen. The firm was sold in 1928, and both men left. The most prominent furniture designer at the 1925 Decorative Arts Exposition was Émile-Jacques Ruhlmann, from Alsace. He first exhibited his works at the 1913 Autumn Salon, then had his own pavilion, the "House of the Rich Collector", at the 1925 Exposition. He used only most rare and expensive materials, including ebony, mahogany, rosewood, ambon and other exotic woods, decorated with inlays of ivory, tortoise shell, mother of pearl, Little pompoms of silk decorated the handles of drawers of the cabinets. His furniture was based upon 18th-century models, but simplified and reshaped. In all of his work, the interior structure of the furniture was completely concealed. The framework usually of oak, was completely covered with an overlay of thin strips of wood, then covered by a second layer of strips of rare and expensive woods. This was then covered with a veneer and polished, so that the piece looked as if it had been cut out of a single block of wood. Contrast to the dark wood was provided by inlays of ivory, and ivory key plates and handles. According to Ruhlmann, armchairs had to be designed differently according to the functions of the rooms where they appeared; living room armchairs were designed to be welcoming, office chairs comfortable, and salon chairs voluptuous. Only a small number of pieces of each design of furniture was made, and the average price of one of his beds or cabinets was greater than the price of an average house. Jules Leleu was a traditional furniture designer who moved smoothly into Art Deco in the 1920s; he designed the furniture for the dining room of the Élysée Palace, and for the first-class cabins of the steamship Normandie. his style was characterized by the use of ebony, Macassar wood, walnut, with decoration of plaques of ivory and mother of pearl. He introduced the style of lacquered art deco furniture in the late 1920s, and in the late 1930s introduced furniture made of metal with panels of smoked glass. In Italy, the designer Gio Ponti was famous for his streamlined designs. The costly and exotic furniture of Ruhlmann and other traditionalists infuriated modernists, including the architect Le Corbusier, causing him to write a famous series of articles denouncing the arts décoratif style. He attacked furniture made only for the rich and called upon designers to create furniture made with inexpensive materials and modern style, which ordinary people could afford. He designed his own chairs, created to be inexpensive and mass-produced. In the 1930s, furniture designs adapted to the form, with smoother surfaces and curved forms. The masters of the late style included Donald Deskey, who was one of the most influential designers; he created the interior of the Radio City Music Hall. He used a mixture of traditional and very modern materials, including aluminium, chrome, and bakelite, an early form of plastic. Other top designers of Art Deco furniture of the 1930s in the United States included Gilbert Rohde, Warren McArthur, and Kem Weber. The Waterfall style was popular in the 1930s and 1940s, the most prevalent Art Deco form of furniture at the time. Pieces were typically of plywood finished with blond veneer and with rounded edges, resembling a waterfall. Design Streamline was a variety of Art Deco which emerged during the mid-1930s. It was influenced by modern aerodynamic principles developed for aviation and ballistics to reduce aerodynamic drag at high velocities. The bullet shapes were applied by designers to cars, trains, ships, and even objects not intended to move, such as refrigerators, gas pumps, and buildings. One of the first production vehicles in this style was the Chrysler Airflow of 1933. It was unsuccessful commercially, but the beauty and functionality of its design set a precedent; meant modernity. It continued to be used in car design well after World War II. New industrial materials began to influence the design of cars and household objects. These included aluminium, chrome, and bakelite, an early form of plastic. Bakelite could be easily moulded into different forms, and soon was used in telephones, radios and other appliances. Ocean liners also adopted a style of Art Deco, known in French as the Style Paquebot, or "Ocean Liner Style". The most famous example was the SS Normandie, which made its first transatlantic trip in 1935. It was designed particularly to bring wealthy Americans to Paris to shop. The cabins and salons featured the latest Art Deco furnishings and decoration. The Grand Salon of the ship, which was the restaurant for first-class passengers, was bigger than the Hall of Mirrors of the Palace of Versailles. It was illuminated by electric lights within twelve pillars of Lalique crystal; thirty-six matching pillars lined the walls. This was one of the earliest examples of illumination being directly integrated into architecture. The style of ships was soon adapted to buildings. A notable example is found on the San Francisco waterfront, where the Maritime Museum building, built as a public bath in 1937, resembles a ferryboat, with ship railings and rounded corners. The Star Ferry Terminal in Hong Kong also used a variation of the style. Textiles Textiles were an important part of the Art Deco style, in the form of colourful wallpaper, upholstery and carpets, In the 1920s, designers were inspired by the stage sets of the Ballets Russes, fabric designs and costumes from Léon Bakst and creations by the Wiener Werkstätte. The early interior designs of André Mare featured brightly coloured and highly stylized garlands of roses and flowers, which decorated the walls, floors, and furniture. Stylized Floral motifs also dominated the work of Raoul Dufy and Paul Poiret, and in the furniture designs of J.E. Ruhlmann. The floral carpet was reinvented in Deco style by Paul Poiret. The use of the style was greatly enhanced by the introduction of the pochoir stencil-based printing system, which allowed designers to achieve crispness of lines and very vivid colours. Art Deco forms appeared in the clothing of Paul Poiret, Charles Worth and Jean Patou. After World War I, exports of clothing and fabrics became one of the most important currency earners of France. Late Art Deco wallpaper and textiles sometimes featured stylized industrial scenes, cityscapes, locomotives and other modern themes, as well as stylized female figures, metallic finishes and geometric designs. Fashion The new woman of pre-WW1 days became the Amazon of the Art Deco era. Fashion changed dramatically during this period, thanks in particular to designers Paul Poiret and later Coco Chanel. Poiret introduced an important innovation to fashion design, the concept of draping, a departure from the tailoring and patternmaking of the past. He designed clothing cut along straight lines and constructed of rectangular motifs. His styles offered structural simplicity The corseted look and formal styles of the previous period were abandoned, and fashion became more practical, and streamlined. with the use of new materials, brighter colours and printed designs. The designer Coco Chanel continued the transition, popularising the style of sporty, casual chic. A particular typology of the era was the Flapper, a woman who cut her hair into a short bob, drank cocktails, smoked in public, and danced late into the night at fashionable clubs, cabarets or bohemian dives. Of course, most women didn't live like this, the Flapper being more a character present in popular imagination than a reality. Another female Art Deco style was the androgynous garçonne of the 1920s, with flattened bosom, dispelled waist and revealed legs, reducing the silhouette to a short tube, topped with a head-hugging cloche hat. Jewelry In the 1920s and 1930s, designers including René Lalique and Cartier tried to reduce the traditional dominance of diamonds by introducing more colourful gemstones, such as small emeralds, rubies and sapphires. They also placed greater emphasis on very elaborate and elegant settings, featuring less-expensive materials such as enamel, glass, horn and ivory. Diamonds themselves were cut in less traditional forms; the 1925 Exposition saw many diamonds cut in the form of tiny rods or matchsticks. Other popular Art Deco cuts include: emerald cut, with long step-cut facets; asscher cut, more square-shaped than emerald with a high crown and the first diamond cut to ever be patented; marquise cut, to give the illusion of being bigger and bolder; baguette cut: small, rectangular step-cut shapes often used to outline bolder stones. The settings for diamonds also changed; More and more often jewellers used platinum instead of gold, since it was strong and flexible, and could set clusters of stones. Jewellers also began to use more dark materials, such as enamels and black onyx, which provided a higher contrast with diamonds. Jewellery became much more colourful and varied in style. Cartier and the firm of Boucheron combined diamonds with colourful other gemstones cut into the form of leaves, fruit or flowers, to make brooches, rings, earrings, clips and pendants. Far Eastern themes also became popular; plaques of jade and coral were combined with platinum and diamonds, and vanity cases, cigarette cases and powder boxes were decorated with Japanese and Chinese landscapes made with mother of pearl, enamel and lacquer. Rapidly changing fashions in clothing brought new styles of jewellery. Sleeveless dresses of the 1920s meant that arms needed decoration, and designers quickly created bracelets of gold, silver and platinum encrusted with lapis-lazuli, onyx, coral, and other colourful stones; Other bracelets were intended for the upper arms, and several bracelets were often worn at the same time. The short haircuts of women in the twenties called for elaborate deco earring designs. As women began to smoke in public, designers created very ornate cigarette cases and ivory cigarette holders. The invention of the wristwatch before World War I inspired jewelers to create extraordinary, decorated watches, encrusted with diamonds and plated with enamel, gold and silver. Pendant watches, hanging from a ribbon, also became fashionable. The established jewellery houses of Paris in the period, Cartier, Chaumet, Georges Fouquet, Mauboussin, and Van Cleef & Arpels all created jewellery and objects in the new fashion. The firm of Chaumet made highly geometric cigarette boxes, cigarette lighters, pillboxes and notebooks, made of hard stones decorated with jade, lapis lazuli, diamonds and sapphires. They were joined by many young new designers, each with his own idea of deco. Raymond Templier designed pieces with highly intricate geometric patterns, including silver earrings that looked like skyscrapers. Gerard Sandoz was only 18 when he started to design jewelry in 1921; he designed many celebrated pieces based on the smooth and polished look of modern machinery. The glass designer René Lalique also entered the field, creating pendants of fruit, flowers, frogs, fairies or mermaids made of sculpted glass in bright colors, hanging on cords of silk with tassels. The jeweller Paul Brandt contrasted rectangular and triangular patterns, and embedded pearls in lines on onyx plaques. Jean Despres made necklaces of contrasting colours by bringing together silver and black lacquer, or gold with lapis lazuli. Many of his designs looked like highly polished pieces of machines. Jean Dunand was also inspired by modern machinery, combined with bright reds and blacks contrasting with polished metal. Glass art Like the Art Nouveau period before it, Art Deco was an exceptional period for fine glass and other decorative objects, designed to fit their architectural surroundings. The most famous producer of glass objects was René Lalique, whose works, from vases to hood ornaments for automobiles, became symbols of the period. He had made ventures into glass before World War I, designing bottles for the perfumes of François Coty, but he did not begin serious production of art glass until after World War I. In 1918, at the age of 58, he bought a large glass works in Combs-la-Ville and began to manufacture both artistic and practical glass objects. He treated glass as a form of sculpture, and created statuettes, vases, bowls, lamps and ornaments. He used demi-crystal rather than lead crystal, which was softer and easier to form, though not as lustrous. He sometimes used coloured glass, but more often used opalescent glass, where part or the whole of the outer surface was stained with a wash. Lalique provided the decorative glass panels, lights and illuminated glass ceilings for the ocean liners in 1927 and the SS Normandie in 1935, and for some of the first-class sleeping cars of the French railroads. At the 1925 Exposition of Decorative Arts, he had his own pavilion, designed a dining room with a table setting and matching glass ceiling for the Sèvres Pavilion, and designed a glass fountain for the courtyard of the Cours des Métiers, a slender glass column which spouted water from the sides and was illuminated at night. Other notable Art Deco glass manufacturers included Marius-Ernest Sabino, who specialized in figurines, vases, bowls, and glass sculptures of fish, nudes, and animals. For these he often used an opalescent glass which could change from white to blue to amber, depending upon the light. His vases and bowls featured molded friezes of animals, nudes or busts of women with fruit or flowers. His work was less subtle but more colourful than that of Lalique. Other notable Deco glass designers included Edmond Etling, who also used bright opalescent colours, often with geometric patterns and sculpted nudes; Albert Simonet, and Aristide Colotte and Maurice Marinot, who was known for his deeply etched sculptural bottles and vases. The firm of Daum from the city of Nancy, which had been famous for its Art Nouveau glass, produced a line of Deco vases and glass sculpture, solid, geometric and chunky in form. More delicate multi-coloured works were made by Gabriel Argy-Rousseau, who produced delicately shaded vases with sculpted butterflies and nymphs, and Francois Decorchemont, whose vases were streaked and marbled. The Great Depression ruined a large part of the decorative glass industry, which depended upon wealthy clients. Some artists turned to designing stained glass windows for churches. In 1937, the Steuben glass company began the practice of commissioning famous artists to produce glassware. Louis Majorelle, famous for his Art Nouveau furniture, designed a remarkable Art Deco stained glass window portraying steel workers for the offices of the Aciéries de Longwy, a steel mill in Longwy, France. Amiens Cathedral has a rare example of Art Deco stained glass windows in the Chapel of the Sacred Heart, made in 1932-34 by the Paris glass artist Jean Gaudin based on drawings by Jacques Le Breton. Metal art Art Deco artists produced a wide variety of practical objects in the Art Deco style, made of industrial materials from traditional wrought iron to chrome-plated steel. The American artist Norman Bel Geddes designed a cocktail set resembling a skyscraper made of chrome-plated steel. Raymond Subes designed an elegant metal grille for the entrance of the Palais de la Porte Dorée, the centre-piece of the 1931 Paris Colonial Exposition. The French sculptor Jean Dunand produced magnificent doors on the theme "The Hunt", covered with gold leaf and paint on plaster (1935). Animation Art Deco visuals and imagery was used in multiple animated films including Batman, Night Hood, All's Fair at the Fair, Merry Mannequins, Page Miss Glory, Fantasia and Sleeping Beauty. The architecture is featured in the fictitious underwater city of Rapture in the Bioshock video game series. Art Deco architecture around the world Art Deco architecture began in Europe, but by 1939 there were examples in large cities on every continent and in almost every country. This is a selection of prominent buildings on each continent. For a comprehensive list of existing buildings by country, see: List of Art Deco architecture. Africa Most Art Deco buildings in Africa were built during European colonial rule, and often designed by Italian, French and Portuguese architects. Asia Many Art Deco buildings in Asia were designed by European architects. But in the Philippines, local architects such as Juan Nakpil, Juan Arellano, Pablo Antonio and others were preeminent. Many Art Deco landmarks in Asia were demolished during the great economic expansion of Asia the late 20th century, but some notable enclaves of the architecture still remain, particularly in Shanghai and Mumbai. Australia and New Zealand Melbourne and Sydney, Australia, have several notable Art Deco buildings, including the Manchester Unity Building and the former Russell Street Police Headquarters in Melbourne, the Castlemaine Art Museum in Castlemaine, central Victoria and the Grace Building, AWA Tower and Anzac Memorial in Sydney. Several towns in New Zealand, including Napier and Hastings were rebuilt in Art Deco style after the 1931 Hawke's Bay earthquake, and many of the buildings have been protected and restored. Napier has been nominated for UNESCO World Heritage Site status, the first cultural site in New Zealand to be nominated. Wellington has retained a sizeable number of Art Deco buildings. North America In Canada, surviving Art Deco structures are mainly in the major cities; Montreal, Toronto, Hamilton, Ontario, and Vancouver. They range from public buildings like Vancouver City Hall to commercial buildings (College Park) to public works (R. C. Harris Water Treatment Plant). In Mexico, the most imposing Art Deco example is interior of the Palacio de Bellas Artes (Palace of Fine Arts), finished in 1934 with its elaborate décor and murals. Examples of Art Deco residential architecture can be found in the Condesa district, many designed by Francisco J. Serrano. In the United States, Art Deco buildings are found from coast to coast, in all the major cities. It was most widely used for office buildings, train stations, airport terminals, and cinemas; residential buildings are rare. During the 1920s and 1930s architects in the Southwestern United States, particularly in the US state of New Mexico, combined Pueblo Revival with Territorial Style and Art Deco to create Pueblo Deco, as seen in the KiMo Theater in Albuquerque. In the 1930s, the more austere streamline style became popular. Many buildings were demolished between 1945 and the late 1960s, but then efforts began to protect the best examples. The City of Miami Beach established the Miami Beach Architectural District to preserve the fine collection of Art Deco buildings found there. Central America and the Caribbean Art Deco buildings can be found throughout Central America, including in Cuba. Europe The architectural style first appeared in Paris with the Théâtre des Champs-Élysées (1910–13) by Auguste Perret but then spread rapidly around Europe, until examples could be found in nearly every large city, from London to Moscow. In Germany two variations of Art Deco flourished in the 1920s and 30s: The Neue Sachlichkeit style and Expressionist architecture. Notable examples include Erich Mendelsohn's Mossehaus and Schaubühne in Berlin, Fritz Höger's Chilehaus in Hamburg and his Kirche am Hohenzollernplatz in Berlin, the in Hanover and the in Berlin. One of the largest Art Deco buildings in Western Europe is the National Basilica of the Sacred Heart in Koekelberg, Brussels. In 1925, architect Albert van Huffel won the Grand Prize for Architecture with his scale model of the basilica at the Exposition Internationale des Arts Décoratifs et Industriels Modernes in Paris. Spain and Portugal have some striking examples of Art Deco buildings, particularly movie theaters. Examples in Portugal are the Capitólio Theater (1931) and the Éden Cine-Theatre (1937) in Lisbon, the Rivoli Theater (1937) and the Coliseu (1941) in Porto and the Rosa Damasceno Theater (1937) in Santarém. An example in Spain is the Cine Rialto in Valencia (1939). During the 1930s, Art Deco had a noticeable effect on house design in the United Kingdom, as well as the design of various public buildings. Straight, white-rendered house frontages rising to flat roofs, sharply geometric door surrounds and tall windows, as well as convex-curved metal corner windows, were all characteristic of that period. The London Underground is famous for many examples of Art Deco architecture, and there are a number of buildings in the style situated along the Golden Mile in Brentford. Also in West London is the Hoover Building, which was originally built for The Hoover Company and was converted into a superstore in the early 1990s. Bucharest, Romania Bucharest, once known as the "Little Paris" of the 19th century, engaged in a new design after World War I, redirected its inspiration towards New York City. The 1930s brought a new fashion which echoed in the cinema, theatre, dancing styles, art and architecture. Bucharest during the 1930s was marked by more and more art deco architecture from the bigger boulevards like Bulevardul Magheru to the private houses and smaller districts. The Telephone Palace, an early landmark of modern Bucharest, was the first skyscraper of the city. It was the tallest building between 1933 and the 1950s, with a height of . The architects were Louis Weeks and Edmond van Saanen Algi and engineer Walter Troy. The art deco monuments are a crucial part of the character of Bucharest since they describe and mark an important period from its history, the interbellic life (World War I–World War II). Most of the buildings from those years are prone to catastrophe, as Bucharest is located in an earthquake zone. India The Indian Institute of Architects, founded in Mumbai in 1929, played a prominent role in propagating the Art Deco movement. In November 1937, this institute organised the 'Ideal Home Exhibition' held in the Town Hall in Mumbai which spanned over 12 days and attracted about one hundred thousand visitors. As a result, it was declared a success by the 'Journal of the Indian Institute of Architects'. The exhibits displayed the 'ideal', or better described as the most 'modern' arrangements for various parts of the house, paying close detail to avoid architectural blunders and present the most efficient and well-thought-out models. The exhibition focused on various elements of a home ranging from furniture, elements of interior decoration as well as radios and refrigerators using new and scientifically relevant materials and methods. Guided by their desire to emulate the west, the Indian architects were fascinated by the industrial modernity that Art Deco offered. The western elites were the first to experiment with the technologically advanced facets of Art Deco, and architects began the process of transformation by the early 1930s. Mumbai's expanding port commerce in the 1930s resulted in the growth of educated middle class population. It also saw an increase of people migrating to Mumbai in search of job opportunities. This led to the pressing need for new developments through Land Reclamation Schemes and construction of new public and residential buildings. Parallelly, the changing political climate in the country and the aspirational quality of the Art Deco aesthetics led to a whole-hearted acceptance of the building style in the city's development. Most of the buildings from this period can be seen spread throughout the city neighbourhoods in areas such as Churchgate, Colaba, Fort, Mohammed Ali Road, Cumbala Hill, Dadar, Matunga, Bandra and Chembur. South America Art Deco in South America is especially present in countries which received a great wave of immigration in the first half of the 20th century, with notable works in their richest cities, like São Paulo and Rio de Janeiro in Brazil and Buenos Aires in Argentina. The Kavanagh Building in Buenos Aires (1934), by Sánchez, Lagos and de la Torre, was the tallest reinforced-concrete structure when it was completed and is a notable example of late Art Deco style. Preservation and Neo Art Deco In many cities, efforts have been made to protect the remaining Art Deco buildings. In many U.S. cities, historic art deco cinemas have been preserved and turned into cultural centres. Even more modest art deco buildings have been preserved as part of America's architectural heritage; an art deco café and gas station along Route 66 in Shamrock, Texas is an historic monument. The Miami Beach Architectural District protects several hundred old buildings, and requires that new buildings comply with the style. In Havana, Cuba, many Art Deco buildings have badly deteriorated. Efforts are underway to bring the buildings back to their original appearance. In the 21st century, modern variants of Art Deco, called Neo Art Deco (or Neo-Art Deco), have appeared in some American cities, inspired by the classic Art Deco buildings of the 1920s and 1930s. Examples include the NBC Tower in Chicago, inspired by 30 Rockefeller Plaza in New York City; and Smith Center for the Performing Arts in Las Vegas, Nevada, which includes art deco features from Hoover Dam, 80 km (50 miles) away. Gallery See also Art Deco in Paris Roaring Twenties 1920s in Western fashion Années folles 1933 Chicago World's Fair Century of Progress 1936 Fair Park built for Texas Centennial Exposition Art Deco stamps Pueblo Deco architecture Art Nouveau References Bibliography External links Art Deco Miami Beach Art Deco Mumbai Art Deco Montreal Art Deco Society of Washington living room interior design Art Deco Society of California Art Deco Rio de Janeiro Art Deco Shanghai Art Deco Museum in Moscow Art Deco Society New York Art Deco Society of Los Angeles Art Deco Walk in Montreal 20th century in the arts 20th-century architectural styles Art movements Decorative arts Modern art

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https://en.wikipedia.org/wiki/ASCII%20art

ASCII art

ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable (from a total of 128) characters defined by the ASCII Standard from 1963 and ASCII compliant character sets with proprietary extended characters (beyond the 128 characters of standard 7-bit ASCII). The term is also loosely used to refer to text-based visual art in general. ASCII art can be created with any text editor, and is often used with free-form languages. Most examples of ASCII art require a fixed-width font (non-proportional fonts, as on a traditional typewriter) such as Courier for presentation. Among the oldest known examples of ASCII art are the creations by computer-art pioneer Kenneth Knowlton from around 1966, who was working for Bell Labs at the time. "Studies in Perception I" by Knowlton and Leon Harmon from 1966 shows some examples of their early ASCII art. ASCII art was invented, in large part, because early printers often lacked graphics ability and thus, characters were used in place of graphic marks. Also, to mark divisions between different print jobs from different users, bulk printers often used ASCII art to print large banner pages, making the division easier to spot so that the results could be more easily separated by a computer operator or clerk. ASCII art was also used in early e-mail when images could not be embedded. History Typewriter art Since 1867, typewriters have been used for creating visual art. TTY and RTTY TTY stands for "TeleTYpe" or "TeleTYpewriter", and is also known as Teleprinter or Teletype. RTTY stands for Radioteletype; character sets such as Baudot code, which predated ASCII, were used. According to a chapter in the "RTTY Handbook", text images have been sent via teletypewriter as early as 1923. However, none of the "old" RTTY art has been discovered yet. What is known is that text images appeared frequently on radioteletype in the 1960s and the 1970s. Line-printer art In the 1960s, Andries van Dam published a representation of an electronic circuit produced on an IBM 1403 line printer. At the same time, Kenneth Knowlton was producing realistic images, also on line printers, by overprinting several characters on top of one another. Note that it was not ASCII art in a sense that the 1403 was driven by an EBCDIC-coded platform and the character sets and trains available on the 1403 were derived from EBCDIC rather than ASCII, despite some glyphs commonalities. ASCII art The widespread usage of ASCII art can be traced to the computer bulletin board systems of the late 1970s and early 1980s. The limitations of computers of that time period necessitated the use of text characters to represent images. Along with ASCII's use in communication, however, it also began to appear in the underground online art groups of the period. An ASCII comic is a form of webcomic which uses ASCII text to create images. In place of images in a regular comic, ASCII art is used, with the text or dialog usually placed underneath. During the 1990s, graphical browsing and variable-width fonts became increasingly popular, leading to a decline in ASCII art. Despite this, ASCII art continued to survive through online MUDs, an acronym for "Multi-User Dungeon", (which are textual multiplayer role-playing video games), Internet Relay Chat, Email, message boards, and other forms of online communication which commonly employ the needed fixed-width. It is seen to this day on the CLI app Neofetch, which displays the logo of the OS on which it is invoked. ANSI ASCII and more importantly, ANSI were staples of the early technological era; terminal systems relied on coherent presentation using color and control signals standard in the terminal protocols. Over the years, warez groups began to enter the ASCII art scene. Warez groups usually release .nfo files with their software, cracks or other general software reverse-engineering releases. The ASCII art will usually include the warez group's name and maybe some ASCII borders on the outsides of the release notes, etc. BBS systems were based on ASCII and ANSI art, as were most DOS and similar console applications, and the precursor to AOL. Uses ASCII art is used wherever text can be more readily printed or transmitted than graphics, or in some cases, where the transmission of pictures is not possible. This includes typewriters, teleprinters, non-graphic computer terminals, printer separators, in early computer networking (e.g., BBSes), email, and Usenet news messages. ASCII art is also used within the source code of computer programs for representation of company or product logos, and flow control or other diagrams. In some cases, the entire source code of a program is a piece of ASCII art – for instance, an entry to one of the earlier International Obfuscated C Code Contest is a program that adds numbers, but visually looks like a binary adder drawn in logic ports. Some electronic schematic archives represent the circuits using ASCII art. Examples of ASCII-style art predating the modern computer era can be found in the June 1939, July 1948 and October 1948 editions of Popular Mechanics. Early computer games played on terminals frequently used ASCII art to simulate graphics, most notably the roguelike genre using ASCII art to visually represent dungeons and monsters within them. "0verkill" is a 2D platform multiplayer shooter game designed entirely in color ASCII art. MPlayer and VLC media player can display videos as ASCII art through the AAlib library. ASCII art is used in the making of DOS-based ZZT games. Many game walkthrough guides come as part of a basic .txt file; this file often contains the name of the game in ASCII art. Such as below, word art is created using backslashes and other ASCII values in order to create the illusion of 3D. Types and styles Different techniques could be used in ASCII art to obtain different artistic effects. "Typewriter-style" lettering, made from individual letter characters: Line art, for creating shapes: .--. /\ '--' /__\ (^._.^)~ <(o.o )> Solid art, for creating filled objects: .g@8g. db 'Y8@P' d88b Shading, using symbols with various intensities for creating gradients or contrasts: :$#$: "4b. ':. :$#$: "4b. ':. Combinations of the above, often used as signatures, for example, at the end of an email: |\_/| **************************** (\_/) / @ @ \ * "Purrrfectly pleasant" * (='.'=) ( > º < ) * Poppy Prinz * (")_(") `>>x<<´ * (pprinz@example.com) * / O \ **************************** As-pixel characters use combinations of ░ , █ , ▄, ▀ (Block Elements), and/or ⣿, ⣴, ⢁, etc (Braille ASCII) to make pictures: ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠿⠿⠿⠿⢿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣾⣿⣷⣦⣌⠙⢿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⣿⣿⣿⣿⣿⣷⡈⢻⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⠟⠋⣉⠙⢻⣿⣿⣿⣷⠀⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⠟⢁⣴⣿⣿⡷⢀⣿⣿⣿⡿⠀⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⠟⢁⣴⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣼⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⠟⢁⣴⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣴⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⠟⢁⣴⣿⣿⠟⢁⣴⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣴⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⠟⢁⣴⣿⣿⣿⣿⣶⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣴⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⠁⣴⣿⣿⣿⣿⣿⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⠀⢿⣿⣿⣿⣿⣿⡿⠋⣠⣾⣿⣿⠟⢁⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣧⡈⠻⢿⣿⡿⠋⣠⣾⣿⣿⡟⢁⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣷⣶⣶⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ Emoticons and verticons The simplest forms of ASCII art are combinations of two or three characters for expressing emotion in text. They are commonly referred to as 'emoticon', 'smilie', or 'smiley'. There is another type of one-line ASCII art that does not require the mental rotation of pictures, which is widely known in Japan as kaomoji (literally "face characters".) More complex examples use several lines of text to draw large symbols or more complex figures. Hundreds of different text smileys have developed over time, but only a few are generally accepted, used and understood. ASCII comic An ASCII comic is a form of webcomic. The Adventures of Nerd Boy The Adventures of Nerd Boy, or just Nerd Boy, was an ASCII comic, published by Joaquim Gândara between 5 August 2001 and 17 July 2007, and consisting of 600 strips. They were posted to ASCII art newsgroup alt.ascii-art and on the website. Some strips have been translated to Polish and French. Styles of the computer underground text art scene Atari 400/800 ATASCII The Atari 400/800, which were released in 1979, did not follow the ASCII standard and had their own character set, called ATASCII. The emergence of ATASCII art coincided with the growing popularity of BBS Systems caused by availability of the acoustic couplers that were compatible with the 8-bit home computers. ATASCII text animations are also referred to as "break animations" by the Atari sceners. C-64 PETSCII The Commodore 64, which was released in 1982, also did not follow the ASCII standard. The C-64 character set is called PETSCII, an extended form of ASCII-1963. As with the Atari's ATASCII art, C-64 fans developed a similar scene that used PETSCII for their creations. "Block ASCII" / "High ASCII" style ASCII art on the IBM PC So-called "block ASCII" or "high ASCII" uses the extended characters of the 8-bit code page 437, which is a proprietary standard introduced by IBM in 1979 (ANSI Standard x3.16) for the IBM PC DOS and MS-DOS operating systems. "Block ASCIIs" were widely used on the PC during the 1990s until the Internet replaced BBSes as the main communication platform. Until then, "block ASCIIs" dominated the PC Text Art Scene. The first art scene group that focused on the extended character set of the PC in their art work was called "Aces of ANSI Art" (). Some members left in 1990, and formed a group called "ANSI Creators in Demand" (ACiD). In that same year the second major underground art scene group was founded, ICE, "Insane Creators Enterprise". There is some debate between ASCII and block ASCII artists, with "Hardcore" ASCII artists maintaining that block ASCII art is in fact not ASCII art, because it does not use the 128 characters of the original ASCII standard. On the other hand, block ASCII artists argue that if their art uses only characters of the computers character set, then it is to be called ASCII, regardless if the character set is proprietary or not. Microsoft Windows does not support the ANSI Standard x3.16. One can view block ASCIIs with a text editor using the font "Terminal", but it will not look exactly as it was intended by the artist. With a special ASCII/ANSI viewer, such as ACiDView for Windows (see ASCII and ANSI art viewers), one can see block ASCII and ANSI files properly. An example that illustrates the difference in appearance is part of this article. Alternatively, one could look at the file using the TYPE command in the command prompt. "Amiga"/"Oldskool" style ASCII art In the art scene one popular ASCII style that used the 7-bit standard ASCII character set was the so-called "Oldskool" style. It is also called "Amiga style", due to its origin and widespread use on the Commodore Amiga computers. The style uses primarily the characters: _/\-+=.()<>:. The "oldskool" art looks more like the outlined drawings of shapes than real pictures. This is an example of "Amiga style" (also referred to as "old school" or "oldskool" style) scene ASCII art. The Amiga ASCII scene surfaced in 1992, seven years after the introduction of the Commodore Amiga 1000. The Commodore 64 PETSCII scene did not make the transition to the Commodore Amiga as the C64 demo and warez scenes did. Among the first Amiga ASCII art groups were ART, Epsilon Design, Upper Class, Unreal (later known as "DeZign"). This means that the text art scene on the Amiga was actually younger than the text art scene on the PC. The Amiga artists also did not call their ASCII art style "Oldskool". That term was introduced on the PC. When and by whom is unknown and lost in history. The Amiga style ASCII artwork was most often released in the form of a single text file, which included all the artwork (usually requested), with some design parts in between, as opposed to the PC art scene where the art work was released as a ZIP archive with separate text files for each piece. Furthermore, the releases were usually called "ASCII collections" and not "art packs" like on the IBM PC. In text editors _ ___ _ _ | ___|_ _/ ___| | ___| |_ | |_ | | | _| |/ _ \ __| | _| | | |_| | | __/ |_ |_| |___\|_|\___|\__| This kind of ASCII art is handmade in a text editor. Popular editors used to make this kind of ASCII art include Microsoft Notepad, CygnusEditor aka. CED (Amiga), and EditPlus2 (PC). Oldskool font example from the PC, which was taken from the ASCII editor FIGlet. Newskool style ASCII art "Newskool" is a popular form of ASCII art which capitalizes on character strings like "$#Xxo". In spite of its name, the style is not "new"; on the contrary, it was very old but fell out of favor and was replaced by "Oldskool" and "Block" style ASCII art. It was dubbed "Newskool" upon its comeback and renewed popularity at the end of the 1990s. Newskool changed significantly as the result of the introduction of extended proprietary characters. The classic 7-bit standard ASCII characters remain predominant, but the extended characters are often used for "fine tuning" and "tweaking". The style developed further after the introduction and adaptation of Unicode. Methods for generating ASCII art While some prefer to use a simple text editor to produce ASCII art, specialized programs, such as JavE have been developed that often simulate the features and tools in bitmap image editors. For Block ASCII art and ANSI art the artist almost always uses a special text editor, because to generate the required characters on a standard keyboard, one needs to know the Alt code for each character. For example, + will produce ▓, + will produce ▒, and + will produce ◘. The special text editors have sets of special characters assigned to existing keys on the keyboard. Popular DOS-based editors, such as TheDraw and ACiDDraw had multiple sets of different special characters mapped to the function keys to make the use of those characters easier for the artist who can switch between individual sets of characters via basic keyboard shortcuts. PabloDraw is one of the very few special ASCII/ANSI art editors that were developed for Windows. Image to text conversion Other programs allow one to automatically convert an image to text characters, which is a special case of vector quantization. A method is to sample the image down to grayscale with less than 8-bit precision, and then assign a character for each value. Such ASCII art generators often allow users to choose the intensity and contrast of the generated image. Three factors limit the fidelity of the conversion, especially of photographs: depth (solutions: reduced line spacing; bold style; block elements; colored background; good shading); sharpness (solutions: a longer text, with a smaller font; a greater set of characters; variable width fonts); ratio (solutions with compatibility issues: font with a square grid; stylized without extra line spacing). Examples of converted images are given below. This is one of the earliest forms of ASCII art, dating back to the early days of the 1960s minicomputers and teletypes. During the 1970s, it was popular in US malls to get a t-shirt with a photograph printed in ASCII art on it from an automated kiosk containing a computer, and London's Science Museum had a similar service to produce printed portraits. With the advent of the web, HTML and CSS, many ASCII conversion programs will now quantize to a full RGB colorspace, enabling colorized ASCII images. Still images or movies can also be converted to ASCII on various UNIX and UNIX-like systems using the AAlib (black and white) or libcaca (colour) graphics device driver, or the VLC media player or mpv under Windows, Linux or macOS; all of which render the screen using ASCII symbols instead of pixels. There are also a number of smartphone applications, such as ASCII cam for Android, that generate ASCII art in real-time using input from the phone's camera. These applications typically allow the ASCII art to be saved as either a text file or as an image made up of ASCII text. Non fixed-width ASCII Most ASCII art is created using a monospaced font, such as Courier, where all characters are identical in width. Early computers in use when ASCII art came into vogue had monospaced fonts for screen and printer displays. Today, most of the more commonly used fonts in word processors, web browsers and other programs are proportional fonts, such as Helvetica or Times Roman, where different widths are used for different characters. ASCII art drawn for a fixed width font will usually appear distorted, or even unrecognizable when displayed in a proportional font. Some ASCII artists have produced art for display in proportional fonts. These ASCIIs, rather than using a purely shade-based correspondence, use characters for slopes and borders and use block shading. These ASCIIs generally offer greater precision and attention to detail than fixed-width ASCIIs for a lower character count, although they are not as universally accessible since they are usually relatively font-specific. Animated ASCII art Animated ASCII art started in 1970 from so-called VT100 animations produced on VT100 terminals. These animations were simply text with cursor movement instructions, deleting and erasing the characters necessary to appear animated. Usually, they represented a long hand-crafted process undertaken by a single person to tell a story. Contemporary web browser revitalized animated ASCII art again. It became possible to display animated ASCII art via JavaScript or Java applets. Static ASCII art pictures are loaded and displayed one after another, creating the animation, very similar to how movie projectors unreel film reel and project the individual pictures on the big screen at movie theaters. A new term was born: "ASCIImation" – another name of animated ASCII art. A seminal work in this arena is the Star Wars ASCIImation. More complicated routines in JavaScript generate more elaborate ASCIImations showing effects like Morphing effects, star field emulations, fading effects and calculated images, such as mandelbrot fractal animations. There are now many tools and programs that can transform raster images into text symbols; some of these tools can operate on streaming video. For example, the music video for American singer Beck's song "Black Tambourine" is made up entirely of ASCII characters that approximate the original footage. VLC, a media player software, can render any video in colored ASCII through the libcaca module. Other text-based visual art There are a variety of other types of art using text symbols from character sets other than ASCII and/or some form of color coding. Despite not being pure ASCII, these are still often referred to as "ASCII art". The character set portion designed specifically for drawing is known as the line drawing characters or pseudo-graphics. ANSI art The IBM PC graphics hardware in text mode uses 16 bits per character. It supports a variety of configurations, but in its default mode under DOS they are used to give 256 glyphs from one of the IBM PC code pages (Code page 437 by default), 16 foreground colors, eight background colors, and a flash option. Such art can be loaded into screen memory directly. ANSI.SYS, if loaded, also allows such art to be placed on screen by outputting escape sequences that indicate movements of the screen cursor and color/flash changes. If this method is used then the art becomes known as ANSI art. The IBM PC code pages also include characters intended for simple drawing which often made this art appear much cleaner than that made with more traditional character sets. Plain text files are also seen with these characters, though they have become far less common since Windows GUI text editors (using the Windows ANSI code page) have largely replaced DOS-based ones. Shift_JIS and Japan In Japan, ASCII art (AA) is mainly known as Shift_JIS art. Shift JIS offers a larger selection of characters than plain ASCII (including characters from Japanese scripts and fullwidth forms of ASCII characters), and may be used for text-based art on Japanese websites. Often, such artwork is designed to be viewed with the default Japanese font on a platform, such as the proportional MS P Gothic. Kaomoji Users on ASCII-NET, in which the word ASCII refers to the ASCII Corporation rather than the American Standard Code for Information Interchange, popularised a style of in which the face appears upright rather than rotated. Unicode Unicode would seem to offer the ultimate flexibility in producing text based art with its huge variety of characters. However, finding a suitable fixed-width font is likely to be difficult if a significant subset of Unicode is desired. (Modern UNIX-style operating systems do provide complete fixed-width Unicode fonts, e.g. for xterm. Windows has the Courier New font, which includes characters like ┌╥─╨┐♥☺Ƹ̵̡Ӝ̵̨̄Ʒ). Also, the common practice of rendering Unicode with a mixture of variable width fonts is likely to make predictable display hard, if more than a tiny subset of Unicode is used. ≽ʌⱷ҅ᴥⱷʌ≼ is an adequate representation of a cat's face in a font with varying character widths. Control and combining characters The combining characters mechanism of Unicode provides considerable ways of customizing the style, even obfuscating the text (e.g. via an online generator like Obfuscator, which focuses on the filters). Glitcher is one example of Unicode art, initiated in 2012: These symbols, intruding up and down, are made by combining lots of diacritical marks. It’s a kind of art. There’s quite a lot of artists who use the Internet or specific social networks as their canvas. The corresponding creations are favored in web browsers (thanks to their always better support), as geekily stylized usernames for social networks. With a fair compatibility, and among different online tools, [Facebook symbols] showcases various types of Unicode art, mainly for aesthetic purpose (Ɯıḳĭƥḙȡḯả Wîkipêȡıẚ Ẉǐḳîṗȅḍȉā Ẃįḵįṗẻḑìẵ Ẉĭḵɪṕḗdïą Ẇïƙỉpểɗĭà Ẅȉḱïṕȩđĩẵ etc.). Besides, the creations can be hand-crafted (by programming), or pasted from mobile applications (e.g. the category of 'fancy text' tools on Android). The underlying technique dates back to the old systems that incorporated control characters, though. E.g. the German composite ö would be imitated on ZX Spectrum by overwriting " after backspace and o. Overprinting (surprint) In the 1970s and early 1980s it was popular to produce a kind of text art that relied on overprinting. This could be produced either on a screen or on a printer by typing a character, backing up, and then typing another character, just as on a typewriter. This developed into sophisticated graphics in some cases, such as the PLATO system (circa 1973), where superscript and subscript allowed a wide variety of graphic effects. A common use was for emoticons, with WOBTAX and VICTORY both producing convincing smiley faces. Overprinting had previously been used on typewriters, but the low-resolution pixelation of characters on video terminals meant that overprinting here produced seamless pixel graphics, rather than visibly overstruck combinations of letters on paper. Beyond pixel graphics, this was also used for printing photographs, as the overall darkness of a particular character space dependent on how many characters, as well as the choice of character, were printed in a particular place. Thanks to the increased granularity of tone, photographs were often converted to this type of printout. Even manual typewriters or daisy wheel printers could be used. The technique has fallen from popularity since all cheap printers can easily print photographs, and a normal text file (or an e-mail message or Usenet posting) cannot represent overprinted text. However, something similar has emerged to replace it: shaded or colored ASCII art, using ANSI video terminal markup or color codes (such as those found in HTML, IRC, and many internet message boards) to add a bit more tone variation. In this way, it is possible to create ASCII art where the characters only differ in color. See also Micrography Types and styles: Alt code, ASCII stereogram, box-drawing characters, emoticon, FILE ID.DIZ, .nfo (release info file) Pre-ASCII history: Calligram, Concrete poetry, Typewriter, Typewriter mystery game, Teleprinter, Radioteletype Related art: ANSI art, ASCII porn, ATASCII, Fax art, PETSCII, Shift JIS art, Text semigraphics Related context: Bulletin board system (BBS), Computer art scene, :Category:Artscene groups Software: AAlib, cowsay Unicode: Homoglyph, Duplicate characters in Unicode References Further reading (Polish translators: Ania Górecka [ag], Asia Mazur [as], Błażej Kozłowski [bug], Janusz [jp], Łukasz Dąbrowski [luk], Łukasz Tyrała [lt.], Łukasz Wilk [wilu], Marcin Gliński [fsc]) External links media4u.ch - ASCII Art (ASCII Art Movie. The Matrix in ASCII Art) TexArt.io ASCII Art collection Textfiles.com archive Sixteen Colors ANSI Art and ASCII Art Archive Defacto2.net Scene NFO Files Archive Chris.com ASCII art collection "As-Pixel Characters" ASCII art collection ASCII Art Animation of Star Wars, "ASCIIMATION" ASCII Keyboard Art Collection Animasci Video to ASCII Demonstration in 4 stages Computer art Digital art New media art Internet art Multimedia Wikipedia articles with ASCII art

1908

https://en.wikipedia.org/wiki/Abzyme

Abzyme

An abzyme (from antibody and enzyme), also called catmab (from catalytic monoclonal antibody), and most often called catalytic antibody or sometimes catab, is a monoclonal antibody with catalytic activity. Abzymes are usually raised in lab animals immunized against synthetic haptens, but some natural abzymes can be found in normal humans (anti-vasoactive intestinal peptide autoantibodies) and in patients with autoimmune diseases such as systemic lupus erythematosus, where they can bind to and hydrolyze DNA. To date abzymes display only weak, modest catalytic activity and have not proved to be of any practical use. They are, however, subjects of considerable academic interest. Studying them has yielded important insights into reaction mechanisms, enzyme structure and function, catalysis, and the immune system itself. Enzymes function by lowering the activation energy of the transition state of a chemical reaction, thereby enabling the formation of an otherwise less-favorable molecular intermediate between the reactant(s) and the product(s). If an antibody is developed to bind to a molecule that is structurally and electronically similar to the transition state of a given chemical reaction, the developed antibody will bind to, and stabilize, the transition state, just like a natural enzyme, lowering the activation energy of the reaction, and thus catalyzing the reaction. By raising an antibody to bind to a stable transition-state analog, a new and unique type of enzyme is produced. So far, all catalytic antibodies produced have displayed only modest, weak catalytic activity. The reasons for low catalytic activity for these molecules have been widely discussed. Possibilities indicate that factors beyond the binding site may play an important role, in particular through protein dynamics. Some abzymes have been engineered to use metal ions and other cofactors to improve their catalytic activity. History The possibility of catalyzing a reaction by means of an antibody which binds the transition state was first suggested by William P. Jencks in 1969. In 1994 Peter G. Schultz and Richard A. Lerner received the prestigious Wolf Prize in Chemistry for developing catalytic antibodies for many reactions and popularizing their study into a significant sub-field of enzymology. Abzymes in Human healthy Breast Milk There are a broad range of abzymes in healthy human mothers with DNAse, RNAse, and protease activity. Potential HIV treatment In a June 2008 issue of the journal Autoimmunity Review, researchers S. Planque, Sudhir Paul, Ph.D, and Yasuhiro Nishiyama, Ph.D of the University Of Texas Medical School at Houston announced that they have engineered an abzyme that degrades the superantigenic region of the gp120 CD4 binding site. This is the one part of the HIV virus outer coating that does not change, because it is the attachment point to T lymphocytes, the key cell in cell-mediated immunity. Once infected by HIV, patients produce antibodies to the more changeable parts of the viral coat. The antibodies are ineffective because of the virus' ability to change their coats rapidly. Because this protein gp120 is necessary for HIV to attach, it does not change across different strains and is a point of vulnerability across the entire range of the HIV variant population. The abzyme does more than bind to the site: it catalytically destroys the site, rendering the virus inert, and then can attack other HIV viruses. A single abzyme molecule can destroy thousands of HIV viruses. References Monoclonal antibodies Immune system Enzymes

1909

https://en.wikipedia.org/wiki/Adaptive%20radiation

Adaptive radiation

In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, alters biotic interactions or opens new environmental niches. Starting with a single ancestor, this process results in the speciation and phenotypic adaptation of an array of species exhibiting different morphological and physiological traits. The prototypical example of adaptive radiation is finch speciation on the Galapagos ("Darwin's finches"), but examples are known from around the world. Characteristics Four features can be used to identify an adaptive radiation: A common ancestry of component species: specifically a recent ancestry. Note that this is not the same as a monophyly in which all descendants of a common ancestor are included. A phenotype-environment correlation: a significant association between environments and the morphological and physiological traits used to exploit those environments. Trait utility: the performance or fitness advantages of trait values in their corresponding environments. Rapid speciation: presence of one or more bursts in the emergence of new species around the time that ecological and phenotypic divergence is underway. Conditions Adaptive radiations are thought to be triggered by an ecological opportunity or a new adaptive zone. Sources of ecological opportunity can be the loss of antagonists (competitors or predators), the evolution of a key innovation or dispersal to a new environment. Any one of these ecological opportunities has the potential to result in an increase in population size and relaxed stabilizing (constraining) selection. As genetic diversity is positively correlated with population size the expanded population will have more genetic diversity compared to the ancestral population. With reduced stabilizing selection phenotypic diversity can also increase. In addition, intraspecific competition will increase, promoting divergent selection to use a wider range of resources. This ecological release provides the potential for ecological speciation and thus adaptive radiation. Occupying a new environment might take place under the following conditions: A new habitat has opened up: a volcano, for example, can create new ground in the middle of the ocean. This is the case in places like Hawaii and the Galapagos. For aquatic species, the formation of a large new lake habitat could serve the same purpose; the tectonic movement that formed the East African Rift, ultimately leading to the creation of the Rift Valley Lakes, is an example of this. An extinction event could effectively achieve this same result, opening up niches that were previously occupied by species that no longer exist. This new habitat is relatively isolated. When a volcano erupts on the mainland and destroys an adjacent forest, it is likely that the terrestrial plant and animal species that used to live in the destroyed region will recolonize without evolving greatly. However, if a newly formed habitat is isolated, the species that colonize it will likely be somewhat random and uncommon arrivals. The new habitat has a wide availability of niche space. The rare colonist can only adaptively radiate into as many forms as there are niches. Relationship between mass-extinctions and mass adaptive radiations A 2020 study found there to be no direct causal relationship between the proportionally most comparable mass radiations and extinctions in terms of "co-occurrence of species", substantially challenging the hypothesis of "creative mass extinctions". Examples Darwin's finches Darwin's finches are an often-used textbook example of adaptive radiation. Today represented by approximately 15 species, Darwin's finches are Galapagos endemics famously adapted for a specialized feeding behavior (although one species, the Cocos finch (Pinaroloxias inornata), is not found in the Galapagos but on the island of Cocos south of Costa Rica). Darwin's finches are not actually finches in the true sense, but are members of the tanager family Thraupidae, and are derived from a single ancestor that arrived in the Galapagos from mainland South America perhaps just 3 million years ago. Excluding the Cocos finch, each species of Darwin's finch is generally widely distributed in the Galapagos and fills the same niche on each island. For the ground finches, this niche is a diet of seeds, and they have thick bills to facilitate the consumption of these hard materials. The ground finches are further specialized to eat seeds of a particular size: the large ground finch (Geospiza magnirostris) is the largest species of Darwin's finch and has the thickest beak for breaking open the toughest seeds, the small ground finch (Geospiza fuliginosa) has a smaller beak for eating smaller seeds, and the medium ground finch (Geospiza fortis) has a beak of intermediate size for optimal consumption of intermediately sized seeds (relative to G. magnirostris and G. fuliginosa). There is some overlap: for example, the most robust medium ground finches could have beaks larger than those of the smallest large ground finches. Because of this overlap, it can be difficult to tell the species apart by eye, though their songs differ. These three species often occur sympatrically, and during the rainy season in the Galapagos when food is plentiful, they specialize little and eat the same, easily accessible foods. It was not well-understood why their beaks were so adapted until Peter and Rosemary Grant studied their feeding behavior in the long dry season, and discovered that when food is scarce, the ground finches use their specialized beaks to eat the seeds that they are best suited to eat and thus avoid starvation. The other finches in the Galapagos are similarly uniquely adapted for their particular niche. The cactus finches (Geospiza sp.) have somewhat longer beaks than the ground finches that serve the dual purpose of allowing them to feed on Opuntia cactus nectar and pollen while these plants are flowering, but on seeds during the rest of the year. The warbler-finches (Certhidea sp.) have short, pointed beaks for eating insects. The woodpecker finch (Camarhynchus pallidus) has a slender beak which it uses to pick at wood in search of insects; it also uses small sticks to reach insect prey inside the wood, making it one of the few animals that use tools. The mechanism by which the finches initially diversified is still an area of active research. One proposition is that the finches were able to have a non-adaptive, allopatric speciation event on separate islands in the archipelago, such that when they reconverged on some islands, they were able to maintain reproductive isolation. Once they occurred in sympatry, niche specialization was favored so that the different species competed less directly for resources. This second, sympatric event was adaptive radiation. Cichlids of the African Great Lakes The haplochromine cichlid fishes in the Great Lakes of the East African Rift (particularly in Lake Tanganyika, Lake Malawi, and Lake Victoria) form the most speciose modern example of adaptive radiation. These lakes are believed to be home to about 2,000 different species of cichlid, spanning a wide range of ecological roles and morphological characteristics. Cichlids in these lakes fill nearly all of the roles typically filled by many fish families, including those of predators, scavengers, and herbivores, with varying dentitions and head shapes to match their dietary habits. In each case, the radiation events are only a few million years old, making the high level of speciation particularly remarkable. Several factors could be responsible for this diversity: the availability of a multitude of niches probably favored specialization, as few other fish taxa are present in the lakes (meaning that sympatric speciation was the most probable mechanism for initial specialization). Also, continual changes in the water level of the lakes during the Pleistocene (which often turned the largest lakes into several smaller ones) could have created the conditions for secondary allopatric speciation. Tanganyika cichlids Lake Tanganyika is the site from which nearly all the cichlid lineages of East Africa (including both riverine and lake species) originated. Thus, the species in the lake constitute a single adaptive radiation event but do not form a single monophyletic clade. Lake Tanganyika is also the least speciose of the three largest African Great Lakes, with only around 200 species of cichlid; however, these cichlids are more morphologically divergent and ecologically distinct than their counterparts in lakes Malawi and Victoria, an artifact of Lake Tanganyika's older cichlid fauna. Lake Tanganyika itself is believed to have formed 9–12 million years ago, putting a recent cap on the age of the lake's cichlid fauna. Many of Tanganyika's cichlids live very specialized lifestyles. The giant or emperor cichlid (Boulengerochromis microlepis) is a piscivore often ranked the largest of all cichlids (though it competes for this title with South America's Cichla temensis, the speckled peacock bass). It is thought that giant cichlids spawn only a single time, breeding in their third year and defending their young until they reach a large size, before dying of starvation some time thereafter. The three species of Altolamprologus are also piscivores, but with laterally compressed bodies and thick scales enabling them to chase prey into thin cracks in rocks without damaging their skin. Plecodus straeleni has evolved large, strangely curved teeth that are designed to scrape scales off of the sides of other fish, scales being its main source of food. Gnathochromis permaxillaris possesses a large mouth with a protruding upper lip, and feeds by opening this mouth downward onto the sandy lake bottom, sucking in small invertebrates. A number of Tanganyika's cichlids are shell-brooders, meaning that mating pairs lay and fertilize their eggs inside of empty shells on the lake bottom. Lamprologus callipterus is a unique egg-brooding species, with 15 cm-long males amassing collections of shells and guarding them in the hopes of attracting females (about 6 cm in length) to lay eggs in these shells. These dominant males must defend their territories from three types of rival: (1) other dominant males looking to steal shells; (2) younger, "sneaker" males looking to fertilize eggs in a dominant male's territory; and (3) tiny, 2–4 cm "parasitic dwarf" males that also attempt to rush in and fertilize eggs in the dominant male's territory. These parasitic dwarf males never grow to the size of dominant males, and the male offspring of dominant and parasitic dwarf males grow with 100% fidelity into the form of their fathers. A number of other highly specialized Tanganyika cichlids exist aside from these examples, including those adapted for life in open lake water up to 200m deep. Malawi cichlids The cichlids of Lake Malawi constitute a "species flock" of up to 1000 endemic species. Only seven cichlid species in Lake Malawi are not a part of the species flock: the Eastern happy (Astatotilapia calliptera), the sungwa (Serranochromis robustus), and five tilapia species (genera Oreochromis and Coptodon). All of the other cichlid species in the lake are descendants of a single original colonist species, which itself was descended from Tanganyikan ancestors. The common ancestor of Malawi's species flock is believed to have reached the lake 3.4 million years ago at the earliest, making Malawi cichlids' diversification into their present numbers particularly rapid. Malawi's cichlids span a similarly range of feeding behaviors to those of Tanganyika, but also show signs of a much more recent origin. For example, all members of the Malawi species flock are mouth-brooders, meaning the female keeps her eggs in her mouth until they hatch; in almost all species, the eggs are also fertilized in the female's mouth, and in a few species, the females continue to guard their fry in their mouth after they hatch. Males of most species display predominantly blue coloration when mating. However, a number of particularly divergent species are known from Malawi, including the piscivorous Nimbochromis livingtonii, which lies on its side in the substrate until small cichlids, perhaps drawn to its broken white patterning, come to inspect the predator - at which point they are swiftly eaten. Victoria cichlids Lake Victoria's cichlids are also a species flock, once composed of some 500 or more species. The deliberate introduction of the Nile Perch (Lates niloticus) in the 1950s proved disastrous for Victoria cichlids, and the collective biomass of the Victoria cichlid species flock has decreased substantially and an unknown number of species have become extinct. However, the original range of morphological and behavioral diversity seen in the lake's cichlid fauna is still mostly present today, if endangered. These again include cichlids specialized for niches across the trophic spectrum, as in Tanganyika and Malawi, but again, there are standouts. Victoria is famously home to many piscivorous cichlid species, some of which feed by sucking the contents out of mouthbrooding females' mouths. Victoria's cichlids constitute a far younger radiation than even that of Lake Malawi, with estimates of the age of the flock ranging from 200,000 years to as little as 14,000. Adaptive radiation in Hawaii Hawaii has served as the site of a number of adaptive radiation events, owing to its isolation, recent origin, and large land area. The three most famous examples of these radiations are presented below, though insects like the Hawaiian drosophilid flies and Hyposmocoma moths have also undergone adaptive radiation. Hawaiian honeycreepers The Hawaiian honeycreepers form a large, highly morphologically diverse species group of birds that began radiating in the early days of the Hawaiian archipelago. While today only 17 species are known to persist in Hawaii (3 more may or may not be extinct), there were more than 50 species prior to Polynesian colonization of the archipelago (between 18 and 21 species have gone extinct since the discovery of the islands by westerners). The Hawaiian honeycreepers are known for their beaks, which are specialized to satisfy a wide range of dietary needs: for example, the beak of the ʻakiapōlāʻau (Hemignathus wilsoni) is characterized by a short, sharp lower mandible for scraping bark off of trees, and the much longer, curved upper mandible is used to probe the wood underneath for insects. Meanwhile, the ʻiʻiwi (Drepanis coccinea) has a very long curved beak for reaching nectar deep in Lobelia flowers. An entire clade of Hawaiian honeycreepers, the tribe Psittirostrini, is composed of thick-billed, mostly seed-eating birds, like the Laysan finch (Telespiza cantans). In at least some cases, similar morphologies and behaviors appear to have evolved convergently among the Hawaiian honeycreepers; for example, the short, pointed beaks of Loxops and Oreomystis evolved separately despite once forming the justification for lumping the two genera together. The Hawaiian honeycreepers are believed to have descended from a single common ancestor some 15 to 20 million years ago, though estimates range as low as 3.5 million years. Hawaiian silverswords Adaptive radiation is not a strictly vertebrate phenomenon, and examples are also known from among plants. The most famous example of adaptive radiation in plants is quite possibly the Hawaiian silverswords, named for alpine desert-dwelling Argyroxiphium species with long, silvery leaves that live for up to 20 years before growing a single flowering stalk and then dying. The Hawaiian silversword alliance consists of twenty-eight species of Hawaiian plants which, aside from the namesake silverswords, includes trees, shrubs, vines, cushion plants, and more. The silversword alliance is believed to have originated in Hawaii no more than 6 million years ago, making this one of Hawaii's youngest adaptive radiation events. This means that the silverswords evolved on Hawaii's modern high islands, and descended from a single common ancestor that arrived on Kauai from western North America. The closest modern relatives of the silverswords today are California tarweeds of the family Asteraceae. Hawaiian lobelioids Hawaii is also the site of a separate major floral adaptive radiation event: the Hawaiian lobelioids. The Hawaiian lobelioids are significantly more speciose than the silverswords, perhaps because they have been present in Hawaii for so much longer: they descended from a single common ancestor who arrived in the archipelago up to 15 million years ago. Today the Hawaiian lobelioids form a clade of over 125 species, including succulents, trees, shrubs, epiphytes, etc. Many species have been lost to extinction and many of the surviving species endangered. Caribbean anoles Anole lizards are distributed broadly in the New World, from the Southeastern US to South America. With over 400 species currently recognized, often placed in a single genus (Anolis), they constitute one of the largest radiation events among all lizards. Anole radiation on the mainland has largely been a process of speciation, and is not adaptive to any great degree, but anoles on each of the Greater Antilles (Cuba, Hispaniola, Puerto Rico, and Jamaica) have adaptively radiated in separate, convergent ways. On each of these islands, anoles have evolved with such a consistent set of morphological adaptations that each species can be assigned to one of six "ecomorphs": trunk–ground, trunk–crown, grass–bush, crown–giant, twig, and trunk. Take, for example, crown–giants from each of these islands: the Cuban Anolis luteogularis, Hispaniola's Anolis ricordii, Puerto Rico's Anolis cuvieri, and Jamaica's Anolis garmani (Cuba and Hispaniola are both home to more than one species of crown–giant). These anoles are all large, canopy-dwelling species with large heads and large lamellae (scales on the undersides of the fingers and toes that are important for traction in climbing), and yet none of these species are particularly closely related and appear to have evolved these similar traits independently. The same can be said of the other five ecomorphs across the Caribbean's four largest islands. Much like in the case of the cichlids of the three largest African Great Lakes, each of these islands is home to its own convergent Anolis adaptive radiation event. Other examples Presented above are the most well-documented examples of modern adaptive radiation, but other examples are known. Populations of three-spined sticklebacks have repeatedly diverged and evolved into distinct ecotypes. On Madagascar, birds of the family Vangidae are marked by very distinct beak shapes to suit their ecological roles. Madagascan mantellid frogs have radiated into forms that mirror other tropical frog faunas, with the brightly colored mantellas (Mantella) having evolved convergently with the Neotropical poison dart frogs of Dendrobatidae, while the arboreal Boophis species are the Madagascan equivalent of tree frogs and glass frogs. The pseudoxyrhophiine snakes of Madagascar have evolved into fossorial, arboreal, terrestrial, and semi-aquatic forms that converge with the colubroid faunas in the rest of the world. These Madagascan examples are significantly older than most of the other examples presented here: Madagascar's fauna has been evolving in isolation since the island split from India some 88 million years ago, and the Mantellidae originated around 50 mya. Older examples are known: the K-Pg extinction event, which caused the disappearance of the dinosaurs and most other reptilian megafauna 65 million years ago, is seen as having triggered a global adaptive radiation event that created the mammal diversity that exists today. See also Cambrian explosion—the most notable evolutionary radiation event Evolutionary radiation—a more general term to describe any radiation List of adaptive radiated Hawaiian honeycreepers by form List of adaptive radiated marsupials by form Nonadaptive radiation References Further reading Wilson, E. et al. Life on Earth, by Wilson, E.; Eisner, T.; Briggs, W.; Dickerson, R.; Metzenberg, R.; O'Brien, R.; Susman, M.; Boggs, W. (Sinauer Associates, Inc., Publishers, Stamford, Connecticut), c 1974. Chapters: The Multiplication of Species; Biogeography, pp 824–877. 40 Graphs, w species pictures, also Tables, Photos, etc. Includes Galápagos Islands, Hawaii, and Australia subcontinent, (plus St. Helena Island, etc.). Leakey, Richard. The Origin of Humankind—on adaptive radiation in biology and human evolution, pp. 28–32, 1994, Orion Publishing. Grant, P.R. 1999. The ecology and evolution of Darwin's Finches. Princeton University Press, Princeton, NJ. Mayr, Ernst. 2001. What evolution is. Basic Books, New York, NY. Gavrilets, S. and A. Vose. 2009. Dynamic patterns of adaptive radiation: evolution of mating preferences. In Butlin, R.K., J. Bridle, and D. Schluter (eds) Speciation and Patterns of Diversity, Cambridge University Press, page. 102–126. Pinto, Gabriel, Luke Mahler, Luke J. Harmon, and Jonathan B. Losos. "Testing the Island Effect in Adaptive Radiation: Rates and Patterns of Morphological Diversification in Caribbean and Mainland Anolis Lizards." NCBI (2008): n. pag. Web. 28 Oct. 2014. Schluter, Dolph. The ecology of adaptive radiation. Oxford University Press, 2000. Speciation Evolutionary biology terminology

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https://en.wikipedia.org/wiki/Antimicrobial%20resistance

Antimicrobial resistance

Antimicrobial resistance (AMR) occurs when microbes evolve mechanisms that protect them from the effects of antimicrobials (drugs used to treat infections). All classes of microbes can evolve resistance where the drugs are no longer effective. Fungi evolve antifungal resistance. Viruses evolve antiviral resistance. Protozoa evolve antiprotozoal resistance, and bacteria evolve antibiotic resistance. Together all of these come under the umbrella of antimicrobial resistance. Microbes resistant to multiple antimicrobials are called multidrug resistant (MDR) and are sometimes referred to as superbugs. Although antimicrobial resistance is a naturally occurring process, it is often the result of improper usage of the drugs and management of the infections. Antibiotic resistance is a major subset of AMR, that applies specifically to bacteria that become resistant to antibiotics. Resistance in bacteria can arise naturally by genetic mutation, or by one species acquiring resistance from another. Resistance can appear spontaneously because of random mutations, but also arises through spreading of resistant genes through horizontal gene transfer. However, extended use of antibiotics appears to encourage selection for mutations which can render antibiotics ineffective. Antifungal resistance is a subset of AMR, that specifically applies to fungi that have become resistant to antifungals. Resistance to antifungals can arise naturally, for example by genetic mutation or through aneuploidy. Extended use of antifungals leads to development of antifungal resistance through various mechanisms. Clinical conditions due to infections caused by microbes containing AMR cause millions of deaths each year. In 2019 there were around 1.27 million deaths globally caused by bacterial AMR. Infections caused by resistant microbes are more difficult to treat, requiring higher doses of antimicrobial drugs, more expensive antibiotics, or alternative medications which may prove more toxic. These approaches may also cost more. The prevention of antibiotic misuse, which can lead to antibiotic resistance, includes taking antibiotics only when prescribed. Narrow-spectrum antibiotics are preferred over broad-spectrum antibiotics when possible, as effectively and accurately targeting specific organisms is less likely to cause resistance, as well as side effects. For people who take these medications at home, education about proper use is essential. Health care providers can minimize spread of resistant infections by use of proper sanitation and hygiene, including handwashing and disinfecting between patients, and should encourage the same of the patient, visitors, and family members. Rising drug resistance is caused mainly by use of antimicrobials in humans and other animals, and spread of resistant strains between the two. Growing resistance has also been linked to releasing inadequately treated effluents from the pharmaceutical industry, especially in countries where bulk drugs are manufactured. Antibiotics increase selective pressure in bacterial populations, killing vulnerable bacteria; this increases the percentage of resistant bacteria which continue growing. Even at very low levels of antibiotic, resistant bacteria can have a growth advantage and grow faster than vulnerable bacteria. Similarly, the use of antifungals in agriculture increases selective pressure in fungal populations which triggers the emergence of antifungal resistance. As resistance to antimicrobials becomes more common there is greater need for alternative treatments. Calls for new antimicrobial therapies have been issued, but there is very little development of new drugs which would lead to an improved research process. Antimicrobial resistance is increasing globally due to increased prescription and dispensing of antibiotic drugs in developing countries. Estimates are that 700,000 to several million deaths result per year and continues to pose a major public health threat worldwide. Each year in the United States, at least 2.8 million people become infected with bacteria that are resistant to antibiotics and at least 35,000 people die and US$55 billion is spent on increased health care costs and lost productivity. According to World Health Organization (WHO) estimates, 350 million deaths could be caused by AMR by 2050. By then, the yearly death toll will be 10 million, according to a United Nations report. There are public calls for global collective action to address the threat that include proposals for international treaties on antimicrobial resistance. The burden of worldwide antibiotic resistance is not completely identified, but low-and middle- income countries with weaker healthcare systems are more affected, with mortality being the highest in sub-Saharan Africa. During the COVID-19 pandemic, priorities changed with action against antimicrobial resistance slowing due to scientists and governments focusing more on SARS-CoV-2 research. At the same time the threat of AMR has increased during the pandemic. Definition The WHO defines antimicrobial resistance as a microorganism's resistance to an antimicrobial drug that was once able to treat an infection by that microorganism. A person cannot become resistant to antibiotics. Resistance is a property of the microbe, not a person or other organism infected by a microbe. All types of microbes can develop drug resistance. Thus, there are antibiotic, antifungal, antiviral and antiparasitic resistance. Antibiotic resistance is a subset of antimicrobial resistance. This more specific resistance is linked to bacteria and thus broken down into two further subsets, microbiological and clinical. Microbiological resistance is the most common and occurs from genes, mutated or inherited, that allow the bacteria to resist the mechanism to kill the microbe associated with certain antibiotics. Clinical resistance is shown through the failure of many therapeutic techniques where the bacteria that are normally susceptible to a treatment become resistant after surviving the outcome of the treatment. In both cases of acquired resistance, the bacteria can pass the genetic catalyst for resistance through horizontal gene transfer: conjugation, transduction, or transformation. This allows the resistance to spread across the same species of pathogen or even similar bacterial pathogens. Overview WHO report released April 2014 stated, "this serious threat is no longer a prediction for the future, it is happening right now in every region of the world and has the potential to affect anyone, of any age, in any country. Antibiotic resistance—when bacteria change so antibiotics no longer work in people who need them to treat infections—is now a major threat to public health." Global deaths attributable to AMR numbered 1.27 million in 2019. That year, AMR may have contributed to 5 million deaths and one in five people who died due to AMR were children under five years old. In 2018, WHO considered antibiotic resistance to be one of the biggest threats to global health, food security and development. Deaths attributable to AMR vary by area: The European Centre for Disease Prevention and Control calculated that in 2015 there were 671,689 infections in the EU and European Economic Area caused by antibiotic-resistant bacteria, resulting in 33,110 deaths. Most were acquired in healthcare settings. In 2019 there were 133,000 deaths caused by AMR. Causes Antimicrobial resistance is mainly caused by the overuse/misuse of antimicrobials. This leads to microbes either evolving a defense against drugs used to treat them, or certain strains of microbes that have a natural resistance to antimicrobials becoming much more prevalent than the ones that are easily defeated with medication. While antimicrobial resistance does occur naturally over time, the use of antimicrobial agents in a variety of settings both within the healthcare industry and outside of has led to antimicrobial resistance becoming increasingly more prevalent. Although many microbes develop resistance to antibiotics over time though natural mutation, overprescribing and inappropriate prescription of antibiotics have accelerated the problem. It is possible that as many as 1 in 3 prescriptions written for antibiotics are unnecessary. Every year, approximately 154 million prescriptions for antibiotics are written. Of these, up to 46 million are unnecessary or inappropriate for the condition that the patient has. Microbes may naturally develop resistance through genetic mutations that occur during cell division, and although random mutations are rare, many microbes reproduce frequently and rapidly, increasing the chances of members of the population acquiring a mutation that increases resistance. Many individuals stop taking antibiotics when they begin to feel better. When this occurs, it is possible that the microbes that are less susceptible to treatment still remain in the body. If these microbes are able to continue to reproduce, this can lead to an infection by bacteria that are less susceptible or even resistant to an antibiotic. Natural occurrence Antimicrobial resistance can evolve naturally due to continued exposure to antimicrobials. Natural selection means that organisms that are able to adapt to their environment, survive, and continue to produce offspring. As a result, the types of microorganisms that are able to survive over time with continued attack by certain antimicrobial agents will naturally become more prevalent in the environment, and those without this resistance will become obsolete. Some contemporary antimicrobial resistances have also evolved naturally before the use of antimicrobials of human clinical uses. For instance, methicillin-resistance evolved as a pathogen of hedgehogs, possibly as a co-evolutionary adaptation of the pathogen to hedgehogs that are infected by a dermatophyte that naturally produces antibiotics. Also, many soil fungi and bacteria are natural competitors and the original antibiotic Penicillin discovered by Alexander Fleming rapidly lost clinical effectiveness in treating humans and, furthermore, none of the other natural penicillins (F, K, N, X, O, U1 or U6) are currently in clinical use. Antimicrobial resistance can be acquired from other microbes through swapping genes in a process termed horizontal gene transfer. This means that once a gene for resistance to an antibiotic appears in a microbial community, it can then spread to other microbes in the community, potentially moving from a non-disease causing microbe to a disease-causing microbe. This process is heavily driven by the “natural selection” processes that happen during antibiotic use or misuse. Over time, most of the strains of bacteria and infections present will be the type resistant to the antimicrobial agent being used to treat them, making this agent now ineffective to defeat most microbes. With the increased use of antimicrobial agents, there is a speeding up of this natural process. Self-medication In 89% of countries, antibiotics can only be prescribed by a doctor and supplied by a pharmacy. Self-medication by consumers is defined as "the taking of medicines on one's own initiative or on another person's suggestion, who is not a certified medical professional", and it has been identified as one of the primary reasons for the evolution of antimicrobial resistance. Self-medication with antibiotics is an unsuitable way of using them but a common practice in resource-constrained countries. The practice exposes individuals to the risk of bacteria that have developed antimicrobial resistance. Many people resort to this out of necessity, when access to a physician is unavailable due to lockdowns and GP surgery closures, or when the patients have a limited amount of time or money to see a prescribing doctor. This increased access makes it extremely easy to obtain antimicrobials and an example is India, where in the state of Punjab 73% of the population resorted to treating their minor health issues and chronic illnesses through self-medication. Self-medication is higher outside the hospital environment, and this is linked to higher use of antibiotics, with the majority of antibiotics being used in the community rather than hospitals. The prevalence of self-medication in low- and middle-income countries (LMICs) ranges from 8.1% to very high at 93%. Accessibility, affordability, and conditions of health facilities, as well as the health-seeking behavior, are factors that influence self-medication in low- and middle-income countries (LMICs). Two significant issues with self-medication are the lack of knowledge of the public on, firstly, the dangerous effects of certain antimicrobials (for example ciprofloxacin which can cause tendonitis, tendon rupture and aortic dissection) and, secondly, broad microbial resistance and when to seek medical care if the infection is not clearing. In order to determine the public's knowledge and preconceived notions on antibiotic resistance, a screening of 3,537 articles published in Europe, Asia, and North America was done. Of the 55,225 total people surveyed in the articles, 70% had heard of antibiotic resistance previously, but 88% of those people thought it referred to some type of physical change in the human body. With so many people around the world with the ability to self-medicate using antibiotics, and a vast majority unaware of what antimicrobial resistance is, it makes the increase of antimicrobial resistance and its global negative impact much more likely. Clinical misuse Clinical misuse by healthcare professionals is another contributor to increased antimicrobial resistance. Studies done in the US show that the indication for treatment of antibiotics, choice of the agent used, and the duration of therapy was incorrect in up to 50% of the cases studied. In 2010 and 2011 about a third of antibiotic prescriptions in outpatient settings in the United States were not necessary. Another study in an intensive care unit in a major hospital in France has shown that 30% to 60% of prescribed antibiotics were unnecessary. These inappropriate uses of antimicrobial agents promote the evolution of antimicrobial resistance by supporting the bacteria in developing genetic alterations that lead to resistance. According to research conducted in the USA that aimed to evaluate physicians' attitudes and knowledge on antimicrobial resistance in ambulatory settings, only 63% of those surveyed reported antibiotic resistance as a problem in their local practices, while 23% reported the aggressive prescription of antibiotics as necessary to avoid failing to provide adequate care. This demonstrates how a majority of doctors underestimate the impact that their own prescribing habits have on antimicrobial resistance as a whole. It also confirms that some physicians may be overly cautious and prescribe antibiotics for both medical or legal reasons, even when clinical indications for use of these medications are not always confirmed. This can lead to unnecessary antimicrobial use, a pattern which may have worsened during the COVID-19 pandemic. Studies have shown that common misconceptions about the effectiveness and necessity of antibiotics to treat common mild illnesses contribute to their overuse. Pandemics, disinfectants and healthcare systems Increased antibiotic use during the early waves of the COVID-19 pandemic may exacerbate this global health challenge. Moreover, pandemic burdens on some healthcare systems may contribute to antibiotic-resistant infections. On the other hand, "increased hand hygiene, decreased international travel, and decreased elective hospital procedures may have reduced AMR pathogen selection and spread in the short term" during the COVID-19 pandemic. The use of disinfectants such as alcohol-based hand sanitizers, and antiseptic hand wash may also have the potential to increase antimicrobial resistance. Extensive use of disinfectants can lead to mutations that induce antimicrobial resistance. Environmental pollution Untreated effluents from pharmaceutical manufacturing industries, hospitals and clinics, and inappropriate disposal of unused or expired medication can expose microbes in the environment to antibiotics and trigger the evolution of resistance. Food production Livestock The antimicrobial resistance crisis also extends to the food industry, specifically with food producing animals. With an ever-increasing human population, there is constant pressure to intensify productivity in many agricultural sectors, including the production of meat as a source of protein. Antibiotics are fed to livestock to act as growth supplements, and a preventative measure to decrease the likelihood of infections. This can result in the transfer of resistant bacterial strains into the food that humans eat, causing potentially fatal transfer of disease. While the practice of using antibiotics as growth promoters does result in better yields and meat products, it is a major issue and needs to be decreased in order to prevent antimicrobial resistance. Though the evidence linking antimicrobial usage in livestock to antimicrobial resistance is limited, the World Health Organization Advisory Group on Integrated Surveillance of Antimicrobial Resistance strongly recommended the reduction of use of medically important antimicrobials in livestock. Additionally, the Advisory Group stated that such antimicrobials should be expressly prohibited for both growth promotion and disease prevention in food producing animals. By mapping antimicrobial consumption in livestock globally, it was predicted that in 228 countries there would be a total 67% increase in consumption of antibiotics by livestock by 2030. In some countries such as Brazil, Russia, India, China, and South Africa it is predicted that a 99% increase will occur. Several countries have restricted the use of antibiotics in livestock, including Canada, China, Japan, and the US. These restrictions are sometimes associated with a reduction of the prevalence of antimicrobial resistance in humans. Pesticides Most pesticides protect crops against insects and plants, but in some cases antimicrobial pesticides are used to protect against various microorganisms such as bacteria, viruses, fungi, algae, and protozoa. The overuse of many pesticides in an effort to have a higher yield of crops has resulted in many of these microbes evolving a tolerance against these antimicrobial agents. Currently there are over 4000 antimicrobial pesticides registered with the US Environmental Protection Agency (EPA) and sold to market, showing the widespread use of these agents. It is estimated that for every single meal a person consumes, 0.3 g of pesticides is used, as 90% of all pesticide use is in agriculture. A majority of these products are used to help defend against the spread of infectious diseases, and hopefully protect public health. But out of the large amount of pesticides used, it is also estimated that less than 0.1% of those antimicrobial agents, actually reach their targets. That leaves over 99% of all pesticides used available to contaminate other resources. In soil, air, and water these antimicrobial agents are able to spread, coming in contact with more microorganisms and leading to these microbes evolving mechanisms to tolerate and further resist pesticides. The use of antifungal azole pesticides that drive environmental azole resistance have been linked to azole resistance cases in the clinical setting. The same issues confront the novel antifungal classes (e.g. orotomides) which are again being used in both the clinic and agriculture. Prevention There have been increasing public calls for global collective action to address the threat, including a proposal for an international treaty on antimicrobial resistance. Further detail and attention is still needed in order to recognize and measure trends in resistance on the international level; the idea of a global tracking system has been suggested but implementation has yet to occur. A system of this nature would provide insight to areas of high resistance as well as information necessary for evaluating programs, introducing interventions and other changes made to fight or reverse antibiotic resistance. Duration of antimicrobials Delaying or minimizing the use of antibiotics for certain conditions may help safely reduce their use. Antimicrobial treatment duration should be based on the infection and other health problems a person may have. For many infections once a person has improved there is little evidence that stopping treatment causes more resistance. Some, therefore, feel that stopping early may be reasonable in some cases. Other infections, however, do require long courses regardless of whether a person feels better. Delaying antibiotics for ailments such as a sore throat and otitis media may have not different in the rate of complications compared with immediate antibiotics, for example. When treating respiratory tract infections, clinical judgement is required as to the appropriate treatment (delayed or immediate antibiotic use). Monitoring and mapping There are multiple national and international monitoring programs for drug-resistant threats, including methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant S. aureus (VRSA), extended spectrum beta-lactamase (ESBL) producing Enterobacterales, vancomycin-resistant Enterococcus (VRE), and multidrug-resistant Acinetobacter baumannii (MRAB). ResistanceOpen is an online global map of antimicrobial resistance developed by HealthMap which displays aggregated data on antimicrobial resistance from publicly available and user submitted data. The website can display data for a radius from a location. Users may submit data from antibiograms for individual hospitals or laboratories. European data is from the EARS-Net (European Antimicrobial Resistance Surveillance Network), part of the ECDC. ResistanceMap is a website by the Center for Disease Dynamics, Economics & Policy and provides data on antimicrobial resistance on a global level. By comparison there is a lack of national and international monitoring programs for antifungal resistance. Limiting antimicrobial use in humans Antimicrobial stewardship programmes appear useful in reducing rates of antimicrobial resistance. The antimicrobial stewardship program will also provide pharmacists with the knowledge to educate patients that antibiotics will not work for a virus for example. Excessive antimicrobial use has become one of the top contributors to the evolution of antimicrobial resistance. Since the beginning of the antimicrobial era, antimicrobials have been used to treat a wide range of infectious diseases. Overuse of antimicrobials has become the primary cause of rising levels of antimicrobial resistance. The main problem is that doctors are willing to prescribe antimicrobials to ill-informed individuals who believe that antimicrobials can cure nearly all illnesses, including viral infections like the common cold. In an analysis of drug prescriptions, 36% of individuals with a cold or an upper respiratory infection (both usually viral in origin) were given prescriptions for antibiotics. These prescriptions accomplished nothing other than increasing the risk of further evolution of antibiotic resistant bacteria. Using antimicrobials without prescription is another driving force leading to the overuse of antibiotics to self-treat diseases like the common cold, cough, fever, and dysentery resulting in an epidemic of antibiotic resistance in countries like Bangladesh, risking its spread around the globe. Introducing strict antibiotic stewardship in the outpatient setting to reduce inappropriate prescribing of antibiotics may reduce the emerging bacterial resistance. The WHO AWaRe (Access, Watch, Reserve) antibiotic book has been introduced to guide antibiotic choice for the 30 most common infections in adults and children to reduce inappropriate prescribing in primary care and hospitals. Narrow spectrum antibiotics are preferred due to their lower resistance potential and broad-spectrum antibiotics are only recommended for people with more severe symptoms. Some antibiotics are more likely to confer resistance, so are kept as reserve antibiotics in the AWaRe book. Various diagnostic strategies have been employed to prevent the overuse of antifungal therapy in the clinic, proving a safe alternative to empirical antifungal therapy, and thus underpinning antifungal stewardship schemes. At the hospital level Antimicrobial stewardship teams in hospitals are encouraging optimal use of antimicrobials. The goals of antimicrobial stewardship are to help practitioners pick the right drug at the right dose and duration of therapy while preventing misuse and minimizing the development of resistance. Stewardship interventions may reduce the length of stay by an average of slightly over 1 day while not increasing the risk of death. At the primary care level Given the volume of care provided in primary care (general practice), recent strategies have focused on reducing unnecessary antimicrobial prescribing in this setting. Simple interventions, such as written information explaining when taking antibiotics is not necessary, for example in common infections of the upper respiratory tract, have been shown to reduce antibiotic prescribing. Various tools are also available to help professionals decide if prescribing antimicrobials is necessary. Parental expectations, driven by the worry for their children's health, can influence how often children are prescribed antibiotics. Parents often rely on their clinician for advice and reassurance. However a lack of plain language information and not having adequate time for consultation negatively impacts this relationship. In effect parents often rely on past experiences in their expectations rather than reassurance from the clinician. Adequate time for consultation and plain language information can help parents make informed decisions and avoid unnecessary antibiotic use. The prescriber should closely adhere to the five rights of drug administration: the right patient, the right drug, the right dose, the right route, and the right time. Microbiological samples should be taken for culture and sensitivity testing before treatment when indicated and treatment potentially changed based on the susceptibility report. Health workers and pharmacists can help tackle antibiotic resistance by: enhancing infection prevention and control; only prescribing and dispensing antibiotics when they are truly needed; prescribing and dispensing the right antibiotic(s) to treat the illness. At the individual level People can help tackle resistance by using antibiotics only when prescribed by a doctor; completing the full prescription, never sharing antibiotics with others or using leftover prescriptions. Country examples The Netherlands has the lowest rate of antibiotic prescribing in the OECD, at a rate of 11.4 defined daily doses (DDD) per 1,000 people per day in 2011. The defined daily dose (DDD) is a statistical measure of drug consumption, defined by the World Health Organization (WHO). Germany and Sweden also have lower prescribing rates, with Sweden's rate having been declining since 2007. Greece, France and Belgium have high prescribing rates for antibiotics of more than 28 DDD. Water, sanitation, hygiene Infectious disease control through improved water, sanitation and hygiene (WASH) infrastructure needs to be included in the antimicrobial resistance (AMR) agenda. The "Interagency Coordination Group on Antimicrobial Resistance" stated in 2018 that "the spread of pathogens through unsafe water results in a high burden of gastrointestinal disease, increasing even further the need for antibiotic treatment." This is particularly a problem in developing countries where the spread of infectious diseases caused by inadequate WASH standards is a major driver of antibiotic demand. Growing usage of antibiotics together with persistent infectious disease levels have led to a dangerous cycle in which reliance on antimicrobials increases while the efficacy of drugs diminishes. The proper use of infrastructure for water, sanitation and hygiene (WASH) can result in a 47–72 percent decrease of diarrhea cases treated with antibiotics depending on the type of intervention and its effectiveness. A reduction of the diarrhea disease burden through improved infrastructure would result in large decreases in the number of diarrhea cases treated with antibiotics. This was estimated as ranging from 5 million in Brazil to up to 590 million in India by the year 2030. The strong link between increased consumption and resistance indicates that this will directly mitigate the accelerating spread of AMR. Sanitation and water for all by 2030 is Goal Number 6 of the Sustainable Development Goals. An increase in hand washing compliance by hospital staff results in decreased rates of resistant organisms. Water supply and sanitation infrastructure in health facilities offer significant co-benefits for combatting AMR, and investment should be increased. There is much room for improvement: WHO and UNICEF estimated in 2015 that globally 38% of health facilities did not have a source of water, nearly 19% had no toilets and 35% had no water and soap or alcohol-based hand rub for handwashing. Industrial wastewater treatment Manufacturers of antimicrobials need to improve the treatment of their wastewater (by using industrial wastewater treatment processes) to reduce the release of residues into the environment. Limiting antimicrobial use in animals and farming It is established that the use of antibiotics in animal husbandry can give rise to AMR resistances in bacteria found in food animals to the antibiotics being administered (through injections or medicated feeds). For this reason only antimicrobials that are deemed "not-clinically relevant" are used in these practices. Unlike resistance to antibacterials, antifungal resistance can be driven by arable farming, currently there is no regulation on the use of similar antifungal classes in agriculture and the clinic. Recent studies have shown that the prophylactic use of "non-priority" or "non-clinically relevant" antimicrobials in feeds can potentially, under certain conditions, lead to co-selection of environmental AMR bacteria with resistance to medically important antibiotics. The possibility for co-selection of AMR resistances in the food chain pipeline may have far-reaching implications for human health. Country examples Europe In 1997, European Union health ministers voted to ban avoparcin and four additional antibiotics used to promote animal growth in 1999. In 2006 a ban on the use of antibiotics in European feed, with the exception of two antibiotics in poultry feeds, became effective. In Scandinavia, there is evidence that the ban has led to a lower prevalence of antibiotic resistance in (nonhazardous) animal bacterial populations. As of 2004, several European countries established a decline of antimicrobial resistance in humans through limiting the use of antimicrobials in agriculture and food industries without jeopardizing animal health or economic cost. United States The United States Department of Agriculture (USDA) and the Food and Drug Administration (FDA) collect data on antibiotic use in humans and in a more limited fashion in animals. The FDA first determined in 1977 that there is evidence of emergence of antibiotic-resistant bacterial strains in livestock. The long-established practice of permitting OTC sales of antibiotics (including penicillin and other drugs) to lay animal owners for administration to their own animals nonetheless continued in all states. In 2000, the FDA announced their intention to revoke approval of fluoroquinolone use in poultry production because of substantial evidence linking it to the emergence of fluoroquinolone-resistant Campylobacter infections in humans. Legal challenges from the food animal and pharmaceutical industries delayed the final decision to do so until 2006. Fluroquinolones have been banned from extra-label use in food animals in the USA since 2007. However, they remain widely used in companion and exotic animals. Global action plans and awareness The increasing interconnectedness of the world and the fact that new classes of antibiotics have not been developed and approved for more than 25 years highlight the extent to which antimicrobial resistance is a global health challenge. A global action plan to tackle the growing problem of resistance to antibiotics and other antimicrobial medicines was endorsed at the Sixty-eighth World Health Assembly in May 2015. One of the key objectives of the plan is to improve awareness and understanding of antimicrobial resistance through effective communication, education and training. This global action plan developed by the World Health Organization was created to combat the issue of antimicrobial resistance and was guided by the advice of countries and key stakeholders. The WHO's global action plan is composed of five key objectives that can be targeted through different means, and represents countries coming together to solve a major problem that can have future health consequences. These objectives are as follows: improve awareness and understanding of antimicrobial resistance through effective communication, education and training. strengthen the knowledge and evidence base through surveillance and research. reduce the incidence of infection through effective sanitation, hygiene and infection prevention measures. optimize the use of antimicrobial medicines in human and animal health. develop the economic case for sustainable investment that takes account of the needs of all countries and to increase investment in new medicines, diagnostic tools, vaccines and other interventions. Steps towards progress React based in Sweden has produced informative material on AMR for the general public. Videos are being produced for the general public to generate interest and awareness. The Irish Department of Health published a National Action Plan on Antimicrobial Resistance in October 2017. The Strategy for the Control of Antimicrobial Resistance in Ireland (SARI), Iaunched in 2001 developed Guidelines for Antimicrobial Stewardship in Hospitals in Ireland in conjunction with the Health Protection Surveillance Centre, these were published in 2009. Following their publication a public information campaign 'Action on Antibiotics' was launched to highlight the need for a change in antibiotic prescribing. Despite this, antibiotic prescribing remains high with variance in adherence to guidelines. The United Kingdom published a 20-year vision for antimicrobial resistance that sets out the goal of containing and controlling AMR by 2040. The vision is supplemented by a 5-year action plan running from 2019 to 2024, building on the previous action plan (2013-2018). Antibiotic Awareness Week The World Health Organization has promoted the first World Antibiotic Awareness Week running from 16 to 22 November 2015. The aim of the week is to increase global awareness of antibiotic resistance. It also wants to promote the correct usage of antibiotics across all fields in order to prevent further instances of antibiotic resistance. World Antibiotic Awareness Week has been held every November since 2015. For 2017, the Food and Agriculture Organization of the United Nations (FAO), the World Health Organization (WHO) and the World Organisation for Animal Health (OIE) are together calling for responsible use of antibiotics in humans and animals to reduce the emergence of antibiotic resistance. United Nations In 2016 the Secretary-General of the United Nations convened the Interagency Coordination Group (IACG) on Antimicrobial Resistance. The IACG worked with international organizations and experts in human, animal, and plant health to create a plan to fight antimicrobial resistance. Their report released in April 2019 highlights the seriousness of antimicrobial resistance and the threat it poses to world health. It suggests five recommendations for member states to follow in order to tackle this increasing threat. The IACG recommendations are as follows: Accelerate progress in countries Innovate to secure the future Collaborate for more effective action Invest for a sustainable response Strengthen accountability and global governance Mechanisms and organisms Bacteria The five main mechanisms by which bacteria exhibit resistance to antibiotics are: Drug inactivation or modification: for example, enzymatic deactivation of penicillin G in some penicillin-resistant bacteria through the production of β-lactamases. Drugs may also be chemically modified through the addition of functional groups by transferase enzymes; for example, acetylation, phosphorylation, or adenylation are common resistance mechanisms to aminoglycosides. Acetylation is the most widely used mechanism and can affect a number of drug classes. Alteration of target- or binding site: for example, alteration of PBP—the binding target site of penicillins—in MRSA and other penicillin-resistant bacteria. Another protective mechanism found among bacterial species is ribosomal protection proteins. These proteins protect the bacterial cell from antibiotics that target the cell's ribosomes to inhibit protein synthesis. The mechanism involves the binding of the ribosomal protection proteins to the ribosomes of the bacterial cell, which in turn changes its conformational shape. This allows the ribosomes to continue synthesizing proteins essential to the cell while preventing antibiotics from binding to the ribosome to inhibit protein synthesis. Alteration of metabolic pathway: for example, some sulfonamide-resistant bacteria do not require para-aminobenzoic acid (PABA), an important precursor for the synthesis of folic acid and nucleic acids in bacteria inhibited by sulfonamides, instead, like mammalian cells, they turn to using preformed folic acid. Reduced drug accumulation: by decreasing drug permeability or increasing active efflux (pumping out) of the drugs across the cell surface These pumps within the cellular membrane of certain bacterial species are used to pump antibiotics out of the cell before they are able to do any damage. They are often activated by a specific substrate associated with an antibiotic, as in fluoroquinolone resistance. Ribosome splitting and recycling: for example, drug-mediated stalling of the ribosome by lincomycin and erythromycin unstalled by a heat shock protein found in Listeria monocytogenes, which is a homologue of HflX from other bacteria. Liberation of the ribosome from the drug allows further translation and consequent resistance to the drug. There are several different types of germs that have developed a resistance over time. The six pathogens causing most deaths associated with resistance are Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Streptococcus pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa. They were responsible for 929,000 deaths attributable to resistance and 3.57 million deaths associated with resistance in 2019. Penicillinase-producing Neisseria gonorrhoeae developed a resistance to penicillin in 1976. Another example is Azithromycin-resistant Neisseria gonorrhoeae, which developed a resistance to azithromycin in 2011. In gram-negative bacteria, plasmid-mediated resistance genes produce proteins that can bind to DNA gyrase, protecting it from the action of quinolones. Finally, mutations at key sites in DNA gyrase or topoisomerase IV can decrease their binding affinity to quinolones, decreasing the drug's effectiveness. Some bacteria are naturally resistant to certain antibiotics; for example, gram-negative bacteria are resistant to most β-lactam antibiotics due to the presence of β-lactamase. Antibiotic resistance can also be acquired as a result of either genetic mutation or horizontal gene transfer. Although mutations are rare, with spontaneous mutations in the pathogen genome occurring at a rate of about 1 in 105 to 1 in 108 per chromosomal replication, the fact that bacteria reproduce at a high rate allows for the effect to be significant. Given that lifespans and production of new generations can be on a timescale of mere hours, a new (de novo) mutation in a parent cell can quickly become an inherited mutation of widespread prevalence, resulting in the microevolution of a fully resistant colony. However, chromosomal mutations also confer a cost of fitness. For example, a ribosomal mutation may protect a bacterial cell by changing the binding site of an antibiotic but may result in slower growth rate. Moreover, some adaptive mutations can propagate not only through inheritance but also through horizontal gene transfer. The most common mechanism of horizontal gene transfer is the transferring of plasmids carrying antibiotic resistance genes between bacteria of the same or different species via conjugation. However, bacteria can also acquire resistance through transformation, as in Streptococcus pneumoniae uptaking of naked fragments of extracellular DNA that contain antibiotic resistance genes to streptomycin, through transduction, as in the bacteriophage-mediated transfer of tetracycline resistance genes between strains of S. pyogenes, or through gene transfer agents, which are particles produced by the host cell that resemble bacteriophage structures and are capable of transferring DNA. Antibiotic resistance can be introduced artificially into a microorganism through laboratory protocols, sometimes used as a selectable marker to examine the mechanisms of gene transfer or to identify individuals that absorbed a piece of DNA that included the resistance gene and another gene of interest. Recent findings show no necessity of large populations of bacteria for the appearance of antibiotic resistance. Small populations of Escherichia coli in an antibiotic gradient can become resistant. Any heterogeneous environment with respect to nutrient and antibiotic gradients may facilitate antibiotic resistance in small bacterial populations. Researchers hypothesize that the mechanism of resistance evolution is based on four SNP mutations in the genome of E. coli produced by the gradient of antibiotic. In one study, which has implications for space microbiology, a non-pathogenic strain E. coli MG1655 was exposed to trace levels of the broad spectrum antibiotic chloramphenicol, under simulated microgravity (LSMMG, or Low Shear Modeled Microgravity) over 1000 generations. The adapted strain acquired resistance to not only chloramphenicol, but also cross-resistance to other antibiotics; this was in contrast to the observation on the same strain, which was adapted to over 1000 generations under LSMMG, but without any antibiotic exposure; the strain in this case did not acquire any such resistance. Thus, irrespective of where they are used, the use of an antibiotic would likely result in persistent resistance to that antibiotic, as well as cross-resistance to other antimicrobials. In recent years, the emergence and spread of β-lactamases called carbapenemases has become a major health crisis. One such carbapenemase is New Delhi metallo-beta-lactamase 1 (NDM-1), an enzyme that makes bacteria resistant to a broad range of beta-lactam antibiotics. The most common bacteria that make this enzyme are gram-negative such as E. coli and Klebsiella pneumoniae, but the gene for NDM-1 can spread from one strain of bacteria to another by horizontal gene transfer. Viruses Specific antiviral drugs are used to treat some viral infections. These drugs prevent viruses from reproducing by inhibiting essential stages of the virus's replication cycle in infected cells. Antivirals are used to treat HIV, hepatitis B, hepatitis C, influenza, herpes viruses including varicella zoster virus, cytomegalovirus and Epstein–Barr virus. With each virus, some strains have become resistant to the administered drugs. Antiviral drugs typically target key components of viral reproduction; for example, oseltamivir targets influenza neuraminidase, while guanosine analogs inhibit viral DNA polymerase. Resistance to antivirals is thus acquired through mutations in the genes that encode the protein targets of the drugs. Resistance to HIV antivirals is problematic, and even multi-drug resistant strains have evolved. One source of resistance is that many current HIV drugs, including NRTIs and NNRTIs, target reverse transcriptase; however, HIV-1 reverse transcriptase is highly error prone and thus mutations conferring resistance arise rapidly. Resistant strains of the HIV virus emerge rapidly if only one antiviral drug is used. Using three or more drugs together, termed combination therapy, has helped to control this problem, but new drugs are needed because of the continuing emergence of drug-resistant HIV strains. Fungi Infections by fungi are a cause of high morbidity and mortality in immunocompromised persons, such as those with HIV/AIDS, tuberculosis or receiving chemotherapy. The fungi Candida, Cryptococcus neoformans and Aspergillus fumigatus cause most of these infections and antifungal resistance occurs in all of them. Multidrug resistance in fungi is increasing because of the widespread use of antifungal drugs to treat infections in immunocompromised individuals and the use of some agricultural antifungals. Antifungal resistant disease is associated with increased mortality. Some fungi (e.g. Candida krusei and fluconazole) exhibit intrinsic resistance to certain antifungal drugs or classes, whereas some species develop antifungal resistance to external pressures. Antifungal resistance is a One Health concern, driven by multiple extrinsic factors, including extensive fungicidal use, overuse of clinical antifungals, environmental change and host factors. In the USA fluconazole-resistant Candida species and azole resistance in Aspergillus fumigatus have been highlighted as a growing threat. More than 20 species of Candida can cause candidiasis infection, the most common of which is Candida albicans. Candida yeasts normally inhabit the skin and mucous membranes without causing infection. However, overgrowth of Candida can lead to candidiasis. Some Candida species (e.g. Candida glabrata) are becoming resistant to first-line and second-line antifungal agents such as echinocandins and azoles. The emergence of Candida auris as a potential human pathogen that sometimes exhibits multi-class antifungal drug resistance is concerning and has been associated with several outbreaks globally. The WHO has released a priority fungal pathogen list, including pathogens with antifungal resistance. The identification of antifungal resistance is undermined by limited classical diagnosis of infection, where a culture is lacking, preventing susceptibility testing. National and international surveillance schemes for fungal disease and antifungal resistance are limited, hampering the understanding of the disease burden and associated resistance. The application of molecular testing to identify genetic markers associating with resistance may improve the identification of antifungal resistance, but the diversity of mutations associated with resistance is increasing across the fungal species causing infection. In addition, a number of resistance mechanisms depend on up-regulation of selected genes (for instance reflux pumps) rather than defined mutations that are amenable to molecular detection. Due to the limited number of antifungals in clinical use and the increasing global incidence of antifungal resistance, using the existing antifungals in combination might be beneficial in some cases but further research is needed. Similarly, other approaches that might help to combat the emergence of antifungal resistance could rely on the development of host-directed therapies such as immunotherapy or vaccines. Parasites The protozoan parasites that cause the diseases malaria, trypanosomiasis, toxoplasmosis, cryptosporidiosis and leishmaniasis are important human pathogens. Malarial parasites that are resistant to the drugs that are currently available to infections are common and this has led to increased efforts to develop new drugs. Resistance to recently developed drugs such as artemisinin has also been reported. The problem of drug resistance in malaria has driven efforts to develop vaccines. Trypanosomes are parasitic protozoa that cause African trypanosomiasis and Chagas disease (American trypanosomiasis). There are no vaccines to prevent these infections so drugs such as pentamidine and suramin, benznidazole and nifurtimox are used to treat infections. These drugs are effective but infections caused by resistant parasites have been reported. Leishmaniasis is caused by protozoa and is an important public health problem worldwide, especially in sub-tropical and tropical countries. Drug resistance has "become a major concern". Global and genomic data In 2022, genomic epidemiologists reported results from a global survey of antimicrobial resistance via genomic wastewater-based epidemiology, finding large regional variations, providing maps, and suggesting resistance genes are also passed on between microbial species that are not closely related. The WHO provides the Global Antimicrobial Resistance and Use Surveillance System (GLASS) reports which summarize annual (e.g. 2020's) data on international AMR, also including an interactive dashboard. Epidemiology United Kingdom Public Health England reported that the total number of antibiotic resistant infections in England rose by 9% from 55,812 in 2017 to 60,788 in 2018, but antibiotic consumption had fallen by 9% from 20.0 to 18.2 defined daily doses per 1,000 inhabitants per day between 2014 and 2018. United States The Centers for Disease Control and Prevention reported that more than 2.8 million cases of antibiotic resistance have been reported. However, in 2019 overall deaths from antibiotic-resistant infections decreased by 18% and deaths in hospitals decreased by 30%. The COVID pandemic caused a reversal of much of the progress made on attenuating the effects of antibiotic resistance, resulting in more antibiotic use, more resistant infections, and less data on preventative action. Hospital-onset infections and deaths both increased by 15% in 2020, and significantly higher rates of infections were reported for 4 out of 6 types of healthcare associated infections. History The 1950s to 1970s represented the golden age of antibiotic discovery, where countless new classes of antibiotics were discovered to treat previously incurable diseases such as tuberculosis and syphilis. However, since that time the discovery of new classes of antibiotics has been almost nonexistent, and represents a situation that is especially problematic considering the resiliency of bacteria shown over time and the continued misuse and overuse of antibiotics in treatment. The phenomenon of antimicrobial resistance caused by overuse of antibiotics was predicted as early as 1945 by Alexander Fleming who said "The time may come when penicillin can be bought by anyone in the shops. Then there is the danger that the ignorant man may easily under-dose himself and by exposing his microbes to nonlethal quantities of the drug make them resistant." Without the creation of new and stronger antibiotics an era where common infections and minor injuries can kill, and where complex procedures such as surgery and chemotherapy become too risky, is a very real possibility. Antimicrobial resistance can lead to epidemics of enormous proportions if preventive actions are not taken. In this day and age current antimicrobial resistance leads to longer hospital stays, higher medical costs, and increased mortality. Society and culture Innovation policy Since the mid-1980s pharmaceutical companies have invested in medications for cancer or chronic disease that have greater potential to make money and have "de-emphasized or dropped development of antibiotics". On 20 January 2016 at the World Economic Forum in Davos, Switzerland, more than "80 pharmaceutical and diagnostic companies" from around the world called for "transformational commercial models" at a global level to spur research and development on antibiotics and on the "enhanced use of diagnostic tests that can rapidly identify the infecting organism". A number of countries are considering or implementing delinked payment models for new antimicrobials whereby payment is based on value rather than volume of drug sales. This offers the opportunity to pay for valuable new drugs even if they are reserved for use in relatively rare drug resistant infections. Legal frameworks Some global health scholars have argued that a global, legal framework is needed to prevent and control antimicrobial resistance. For instance, binding global policies could be used to create antimicrobial use standards, regulate antibiotic marketing, and strengthen global surveillance systems. Ensuring compliance of involved parties is a challenge. Global antimicrobial resistance policies could take lessons from the environmental sector by adopting strategies that have made international environmental agreements successful in the past such as: sanctions for non-compliance, assistance for implementation, majority vote decision-making rules, an independent scientific panel, and specific commitments. United States For the United States 2016 budget, U.S. president Barack Obama proposed to nearly double the amount of federal funding to "combat and prevent" antibiotic resistance to more than $1.2 billion. Many international funding agencies like USAID, DFID, SIDA and Bill & Melinda Gates Foundation have pledged money for developing strategies to counter antimicrobial resistance. On 27 March 2015, the White House released a comprehensive plan to address the increasing need for agencies to combat the rise of antibiotic-resistant bacteria. The Task Force for Combating Antibiotic-Resistant Bacteria developed The National Action Plan for Combating Antibiotic-Resistant Bacteria with the intent of providing a roadmap to guide the US in the antibiotic resistance challenge and with hopes of saving many lives. This plan outlines steps taken by the Federal government over the next five years needed in order to prevent and contain outbreaks of antibiotic-resistant infections; maintain the efficacy of antibiotics already on the market; and to help to develop future diagnostics, antibiotics, and vaccines. The Action Plan was developed around five goals with focuses on strengthening health care, public health veterinary medicine, agriculture, food safety and research, and manufacturing. These goals, as listed by the White House, are as follows: Slow the Emergence of Resistant Bacteria and Prevent the Spread of Resistant Infections Strengthen National One-Health Surveillance Efforts to Combat Resistance Advance Development and use of Rapid and Innovative Diagnostic Tests for Identification and Characterization of Resistant Bacteria Accelerate Basic and Applied Research and Development for New Antibiotics, Other Therapeutics, and Vaccines Improve International Collaboration and Capacities for Antibiotic Resistance Prevention, Surveillance, Control and Antibiotic Research and Development The following are goals set to meet by 2020: Establishment of antimicrobial programs within acute care hospital settings Reduction of inappropriate antibiotic prescription and use by at least 50% in outpatient settings and 20% inpatient settings Establishment of State Antibiotic Resistance (AR) Prevention Programs in all 50 states Elimination of the use of medically important antibiotics for growth promotion in food-producing animals. Policies According to World Health Organization, policymakers can help tackle resistance by strengthening resistance-tracking and laboratory capacity and by regulating and promoting the appropriate use of medicines. Policymakers and industry can help tackle resistance by: fostering innovation and research and development of new tools; and promoting cooperation and information sharing among all stakeholders. Policy evaluation Measuring the costs and benefits of strategies to combat AMR is difficult and policies may only have effects in the distant future. In other infectious diseases this problem has been addressed by using mathematical models. More research is needed to understand how AMR develops and spreads so that mathematical modelling can be used to anticipate the likely effects of different policies. Further research Rapid testing and diagnostics Distinguishing infections requiring antibiotics from self-limiting ones is clinically challenging. In order to guide appropriate use of antibiotics and prevent the evolution and spread of antimicrobial resistance, diagnostic tests that provide clinicians with timely, actionable results are needed. Acute febrile illness is a common reason for seeking medical care worldwide and a major cause of morbidity and mortality. In areas with decreasing malaria incidence, many febrile patients are inappropriately treated for malaria, and in the absence of a simple diagnostic test to identify alternative causes of fever, clinicians presume that a non-malarial febrile illness is most likely a bacterial infection, leading to inappropriate use of antibiotics. Multiple studies have shown that the use of malaria rapid diagnostic tests without reliable tools to distinguish other fever causes has resulted in increased antibiotic use. Antimicrobial susceptibility testing (AST) can facilitate a precision medicine approach to treatment by helping clinicians to prescribe more effective and targeted antimicrobial therapy. At the same time with traditional phenotypic AST it can take 12 to 48 hours to obtain a result due to the time taken for organisms to grow on/in culture media. Rapid testing, possible from molecular diagnostics innovations, is defined as "being feasible within an 8-h working shift". There are several commercial Food and Drug Administration-approved assays available which can detect AMR genes from a variety of specimen types. Progress has been slow due to a range of reasons including cost and regulation. Genotypic AMR characterisation methods are, however, being increasingly used in combination with machine learning algorithms in research to help better predict phenotypic AMR from organism genotype. Optical techniques such as phase contrast microscopy in combination with single-cell analysis are another powerful method to monitor bacterial growth. In 2017, scientists from Sweden published a method that applies principles of microfluidics and cell tracking, to monitor bacterial response to antibiotics in less than 30 minutes overall manipulation time. Recently, this platform has been advanced by coupling microfluidic chip with optical tweezing in order to isolate bacteria with altered phenotype directly from the analytical matrix. Rapid diagnostic methods have also been trialled as antimicrobial stewardship interventions to influence the healthcare drivers of AMR. Serum procalcitonin measurement has been shown to reduce mortality rate, antimicrobial consumption and antimicrobial-related side-effects in patients with respiratory infections, but impact on AMR has not yet been demonstrated. Similarly, point of care serum testing of the inflammatory biomarker C-reactive protein has been shown to influence antimicrobial prescribing rates in this patient cohort, but further research is required to demonstrate an effect on rates of AMR. Clinical investigation to rule out bacterial infections are often done for patients with pediatric acute respiratory infections. Currently it is unclear if rapid viral testing affects antibiotic use in children. Vaccines Microorganisms usually do not develop resistance to vaccines because vaccines reduce the spread of the infection and target the pathogen in multiple ways in the same host and possibly in different ways between different hosts. Furthermore, if the use of vaccines increases, there is evidence that antibiotic resistant strains of pathogens will decrease; the need for antibiotics will naturally decrease as vaccines prevent infection before it occurs. However, there are well documented cases of vaccine resistance, although these are usually much less of a problem than antimicrobial resistance. While theoretically promising, antistaphylococcal vaccines have shown limited efficacy, because of immunological variation between Staphylococcus species, and the limited duration of effectiveness of the antibodies produced. Development and testing of more effective vaccines is underway. Two registrational trials have evaluated vaccine candidates in active immunization strategies against S. aureus infection. In a phase II trial, a bivalent vaccine of capsular proteins 5 & 8 was tested in 1804 hemodialysis patients with a primary fistula or synthetic graft vascular access. After 40 weeks following vaccination a protective effect was seen against S. aureus bacteremia, but not at 54 weeks following vaccination. Based on these results, a second trial was conducted which failed to show efficacy. Merck tested V710, a vaccine targeting IsdB, in a blinded randomized trial in patients undergoing median sternotomy. The trial was terminated after a higher rate of multiorgan system failure–related deaths was found in the V710 recipients. Vaccine recipients who developed S. aureus infection were five times more likely to die than control recipients who developed S. aureus infection. Numerous investigators have suggested that a multiple-antigen vaccine would be more effective, but a lack of biomarkers defining human protective immunity keep these proposals in the logical, but strictly hypothetical arena. Alternating therapy Alternating therapy is a proposed method in which two or three antibiotics are taken in a rotation versus taking just one antibiotic such that bacteria resistant to one antibiotic are killed when the next antibiotic is taken. Studies have found that this method reduces the rate at which antibiotic resistant bacteria emerge in vitro relative to a single drug for the entire duration. Studies have found that bacteria that evolve antibiotic resistance towards one group of antibiotic may become more sensitive to others. This phenomenon can be used to select against resistant bacteria using an approach termed collateral sensitivity cycling, which has recently been found to be relevant in developing treatment strategies for chronic infections caused by Pseudomonas aeruginosa. Despite its promise, large-scale clinical and experimental studies revealed limited evidence of susceptibility to antibiotic cycling across various pathogens. Development of new drugs Since the discovery of antibiotics, research and development (R&D) efforts have provided new drugs in time to treat bacteria that became resistant to older antibiotics, but in the 2000s there has been concern that development has slowed enough that seriously ill people may run out of treatment options. Another concern is that practitioners may become reluctant to perform routine surgeries because of the increased risk of harmful infection. Backup treatments can have serious side-effects; for example, antibiotics like aminoglycosides (such as amikacin, gentamicin, kanamycin, streptomycin, etc.) used for the treatment of drug-resistant tuberculosis and cystic fibrosis can cause respiratory disorders, deafness and kidney failure. The potential crisis at hand is the result of a marked decrease in industry research and development. Poor financial investment in antibiotic research has exacerbated the situation. The pharmaceutical industry has little incentive to invest in antibiotics because of the high risk and because the potential financial returns are less likely to cover the cost of development than for other pharmaceuticals. In 2011, Pfizer, one of the last major pharmaceutical companies developing new antibiotics, shut down its primary research effort, citing poor shareholder returns relative to drugs for chronic illnesses. However, small and medium-sized pharmaceutical companies are still active in antibiotic drug research. In particular, apart from classical synthetic chemistry methodologies, researchers have developed a combinatorial synthetic biology platform on single cell level in a high-throughput screening manner to diversify novel lanthipeptides. In the 5–10 years since 2010, there has been a significant change in the ways new antimicrobial agents are discovered and developed – principally via the formation of public-private funding initiatives. These include CARB-X, which focuses on nonclinical and early phase development of novel antibiotics, vaccines, rapid diagnostics; Novel Gram Negative Antibiotic (GNA-NOW), which is part of the EU's Innovative Medicines Initiative; and Replenishing and Enabling the Pipeline for Anti-infective Resistance Impact Fund (REPAIR). Later stage clinical development is supported by the AMR Action Fund, which in turn is supported by multiple investors with the aim of developing 2-4 new antimicrobial agents by 2030. The delivery of these trials is facilitated by national and international networks supported by the Clinical Research Network of the National Institute for Health and Care Research (NIHR), European Clinical Research Alliance in Infectious Diseases (ECRAID) and the recently formed ADVANCE-ID, which is a clinical research network based in Asia. The Global Antimicrobial Research and Development Partnership (GARDP) is generating new evidence for global AMR threats such as neonatal sepsis, treatment of serious bacterial infections and sexually transmitted infections as well as addressing global access to new and strategically important antibacterial drugs. The discovery and development of new antimicrobial agents has been facilitated by regulatory advances, which have been principally led by the European Medicines Agency (EMA) and the Food and Drug Administration (FDA). These processes are increasingly aligned although important differences remain and drug developers must prepare separate documents. New development pathways have been developed to help with the approval of new antimicrobial agents that address unmet needs such as the Limited Population Pathway for Antibacterial and Antifungal Drugs (LPAD). These new pathways are required because of difficulties in conducting large definitive phase III clinical trials in a timely way. Some of the economic impediments to the development of new antimicrobial agents have been addressed by innovative reimbursement schemes that delink payment of antimicrobials from volume-based sales. In the UK, a market entry reward scheme has been pioneered by the National Institute for Clinical Excellence (NICE) whereby an annual subscription fee is paid for use of strategically valuable antimicrobial agents – cefiderocol and ceftazidime-aviabactam are the first agents to be used in this manner and the scheme is potential blueprint for comparable programs in other countries. The available classes of antifungal drugs are still limited but as of 2021 novel classes of antifungals are being developed and are undergoing various stages of clinical trials to assess performance. Scientists have started using advanced computational approaches with supercomputers for the development of new antibiotic derivatives to deal with antimicrobial resistance. Biomaterials Using antibiotic-free alternatives in bone infection treatment may help decrease the use of antibiotics and thus antimicrobial resistance. The bone regeneration material bioactive glass S53P4 has shown to effectively inhibit the bacterial growth of up to 50 clinically relevant bacteria including MRSA and MRSE. Nanomaterials During the last decades, copper and silver nanomaterials have demonstrated appealing features for the development of a new family of antimicrobial agents. Rediscovery of ancient treatments Similar to the situation in malaria therapy, where successful treatments based on ancient recipes have been found, there has already been some success in finding and testing ancient drugs and other treatments that are effective against AMR bacteria. Computational community surveillance One of the key tools identified by the WHO and others for the fight against rising antimicrobial resistance is improved surveillance of the spread and movement of AMR genes through different communities and regions. Recent advances in high-throughput DNA sequencing as a result of the Human Genome Project have resulted in the ability to determine the individual microbial genes in a sample. Along with the availability of databases of known antimicrobial resistance genes, such as the Comprehensive Antimicrobial Resistance Database (CARD) and ResFinder, this allows the identification of all the antimicrobial resistance genes within the sample - the so-called “resistome”. In doing so, a profile of these genes within a community or environment can be determined, providing insights into how antimicrobial resistance is spreading through a population and allowing for the identification of resistance that is of concern. Phage therapy Phage therapy is the therapeutic use of bacteriophages to treat pathogenic bacterial infections. Phage therapy has many potential applications in human medicine as well as dentistry, veterinary science, and agriculture. Phage therapy relies on the use of naturally occurring bacteriophages to infect and lyse bacteria at the site of infection in a host. Due to current advances in genetics and biotechnology these bacteriophages can possibly be manufactured to treat specific infections. Phages can be bioengineered to target multidrug-resistant bacterial infections, and their use involves the added benefit of preventing the elimination of beneficial bacteria in the human body. Phages destroy bacterial cell walls and membrane through the use of lytic proteins which kill bacteria by making many holes from the inside out. Bacteriophages can even possess the ability to digest the biofilm that many bacteria develop that protect them from antibiotics in order to effectively infect and kill bacteria. Bioengineering can play a role in creating successful bacteriophages. Understanding the mutual interactions and evolutions of bacterial and phage populations in the environment of a human or animal body is essential for rational phage therapy. Bacteriophagics are used against antibiotic resistant bacteria in Georgia (George Eliava Institute) and in one institute in Wrocław, Poland. Bacteriophage cocktails are common drugs sold over the counter in pharmacies in eastern countries. In Belgium, four patients with severe musculoskeletal infections received bacteriophage therapy with concomitant antibiotics. After a single course of phage therapy, no recurrence of infection occurred and no severe side-effects related to the therapy were detected. See also References Books Journals 16-minute film about a post-antibiotic world. Review: External links Animation of Antibiotic Resistance Bracing for Superbugs: Strengthening environmental action in the One Health response to antimicrobial resistance UNEP, 2023. CDC Guideline "Management of Multidrug-Resistant Organisms in Healthcare Settings, 2006" Antimicrobial Stewardship Project, at the Center for Infectious Disease Research and Policy (CIDRAP), University of Minnesota AMR Industry Alliance, "members from large R&D pharma, generic manufacturers, biotech, and diagnostic companies" Why won't antibiotics cure us anymore? - prof. dr. Nathaniel Martin (Universiteit Leiden) Evolutionary biology Health disasters Pharmaceuticals policy Veterinary medicine Global issues

1921

https://en.wikipedia.org/wiki/Al-Qaeda

Al-Qaeda

Al-Qaeda is a pan-Islamist militant organization led by Sunni Jihadists who self-identify as a vanguard spearheading a global Islamist revolution to unite the Muslim world under a supra-national Islamic state known as the Caliphate. Its members are mostly composed of Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian, economic and military targets of America and its allies; such as the USS Cole bombing, 1998 US embassy bombings and the September 11 attacks. The organization is designated as a terrorist group by NATO, UN Security Council, the European Union, and various countries around the world. The organization was founded in a series of meetings held in Peshawar during 1988, attended by Abdullah Azzam, Osama bin Laden, Muhammad Atef, Ayman al-Zawahiri and other veterans of the Soviet–Afghan War. Building upon the networks of Maktab al-Khidamat, the founding members decided to create an organization named "Al-Qaeda" to serve as a "vanguard" for jihad. When Saddam Hussein invaded and occupied Kuwait in 1990, bin Laden offered to support Saudi Arabia by sending his Mujahideen fighters. His offer was rebuffed by the Saudi government, which instead sought the aid of the United States. The stationing of U.S. troops in Arabian Peninsula prompted bin Laden to declare a jihad against the Saudi rulers, whom he denounced as murtadd (apostates), and against the US. During 1992–1996, Al-Qaeda established its headquarters in Sudan until it was expelled in 1996. It shifted its base to the Taliban-ruled Afghanistan and later expanded to other parts of the world, primarily in the Middle East and South Asia. In 1996 and 1998, bin Laden issued two fatāwā that demanded the withdrawal of U.S. troops from Saudi Arabia. In 1998, Al-Qaeda conducted the US embassy bombings in Kenya and Tanzania, which killed 224 people. The U.S. retaliated by launching Operation Infinite Reach, against al-Qaeda targets in Afghanistan and Sudan. In 2001, Al-Qaeda carried out the September 11 attacks, resulting in nearly 3,000 deaths, long-term health consequences of nearby residents, damaging global economic markets, triggering drastic geo-political changes as well as generating profound cultural influence across the world. The U.S. launched the war on terror in response and invaded Afghanistan to depose the Taliban and destroy al-Qaeda. In 2003, a U.S.-led coalition invaded Iraq, overthrowing the Ba'athist regime which they falsely accused of having ties with al-Qaeda. In 2004, al-Qaeda launched its Iraqi regional branch. After pursuing him for almost a decade, the U.S. military killed bin Laden in Pakistan in May 2011. Al-Qaeda members believe that a Judeo-Christian alliance (led by the United States) is waging a war against Islam and conspiring to destroy Islam. Al-Qaeda also opposes man-made laws, and seek to implement sharīʿah (Islamic law) in Muslim countries. AQ fighters characteristically deploy tactics such as suicide attacks (Inghimasi and Istishhadi operations) involving simultaneous bombing of several targets in battle-zones. Al-Qaeda's Iraq branch, which later morphed into the Islamic State of Iraq after 2006, was responsible for numerous sectarian attacks against Shias during its Iraqi insurgency. Al-Qaeda ideologues envision the violent removal of all foreign and secularist influences in Muslim countries, which it denounces as corrupt deviations. Following the death of bin Laden in 2011, al-Qaeda vowed to avenge his killing. The group was then led by Egyptian Ayman al-Zawahiri until his death in 2022. , they have reportedly suffered from a deterioration of central command over its regional operations. Organization Al-Qaeda only indirectly controls its day-to-day operations. Its philosophy calls for the centralization of decision making, while allowing for the decentralization of execution. The top leaders of Al-Qaeda have defined the organization's ideology and guiding strategy, and they have also articulated simple and easy-to-receive messages. At the same time, mid-level organizations were given autonomy, but they had to consult with top management before large-scale attacks and assassinations. Top management included the shura council as well as committees on military operations, finance, and information sharing. Through the information committees of Al-Qaeda, Zawahiri placed special emphasis on communicating with his groups. However, after the war on terror, Al-Qaeda's leadership has become isolated. As a result, the leadership has become decentralized, and the organization has become regionalized into several Al-Qaeda groups. Many Western analysts do not believe that the global jihadist movement is driven at every level by Al-Qaeda's leadership. However, bin Laden held considerable ideological influence over revolutionary Islamist movements across the world. Experts argue that Al-Qaeda has fragmented into a number of disparate regional movements, and that these groups bear little connection with one another. This view mirrors the account given by Osama bin Laden in his October 2001 interview with Tayseer Allouni: however, Bruce Hoffman saw Al-Qaeda as a cohesive network that was strongly led from the Pakistani tribal areas. Affiliates Al-Qaeda has the following direct affiliates: Al-Qaeda in the Arabian Peninsula (AQAP) Al-Qaeda in the Indian Subcontinent (AQIS) Al-Qaeda in the Islamic Maghreb (AQIM) Al Shabaab Hurras al-Din Jama'at Nasr al-Islam wal Muslimin (JNIM) The following are presently believed to be indirect affiliates of Al-Qaeda: Caucasus Emirate (factions) Fatah al-Islam Islamic Jihad Union Islamic Movement of Uzbekistan Jaish-e-Mohammed Jemaah Islamiyah Lashkar-e-Taiba Moroccan Islamic Combatant Group Al-Qaeda's former affiliates include the following: Abu Sayyaf (pledged allegiance to ISIL in 2014) Al-Mourabitoun (joined JNIM in 2017) Al-Qaeda in Iraq (became the Islamic State of Iraq, which later seceded from al-Qaeda and became ISIL) Al-Qaeda in the Lands Beyond the Sahel (inactive since 2015) Ansar al-Islam (majority merged with ISIL in 2014) Ansar Dine (joined JNIM in 2017) Islamic Jihad of Yemen (became AQAP) Movement for Oneness and Jihad in West Africa (merged with Al-Mulathameen to form Al-Mourabitoun in 2013) Rajah Sulaiman movement Al-Nusra Front (dissolved in 2017, merged with other Islamist organizations to form Hayat Tahrir al-Sham and split ties) Leadership Osama bin Laden (1988–May 2011) Osama bin Laden served as the emir of Al-Qaeda from the organization's founding in 1988 until his assassination by US forces on May 1, 2011. Atiyah Abd al-Rahman was alleged to be second in command prior to his death on August 22, 2011. Bin Laden was advised by a Shura Council, which consists of senior Al-Qaeda members. The group was estimated to consist of 20–30 people. After May 2011 Ayman al-Zawahiri had been Al-Qaeda's deputy emir and assumed the role of emir following bin Laden's death. Al-Zawahiri replaced Saif al-Adel, who had served as interim commander. On June 5, 2012, Pakistani intelligence officials announced that al-Rahman's alleged successor as second in command, Abu Yahya al-Libi, had been killed in Pakistan. Nasir al-Wuhayshi was alleged to have become Al-Qaeda's overall second in command and general manager in 2013. He was concurrently the leader of Al-Qaeda in the Arabian Peninsula (AQAP) until he was killed by a US airstrike in Yemen in June 2015. Abu Khayr al-Masri, Wuhayshi's alleged successor as the deputy to Ayman al-Zawahiri, was killed by a US airstrike in Syria in February 2017. Al Qaeda's next alleged number two leader, Abdullah Ahmed Abdullah, was killed by Israeli agents. His pseudonym was Abu Muhammad al-Masri, who was killed in November 2020 in Iran. He was involved in the 1998 bombings of the US embassies in Kenya and Tanzania. Al-Qaeda's network was built from scratch as a conspiratorial network which drew upon the leadership of a number of regional nodes. The organization divided itself into several committees, which include: The Military Committee, which is responsible for training operatives, acquiring weapons, and planning attacks. The Money/Business Committee, which funds the recruitment and training of operatives through the hawala banking system. US-led efforts to eradicate the sources of "terrorist financing" were most successful in the year immediately following the September 11 attacks. Al-Qaeda continues to operate through unregulated banks, such as the 1,000 or so hawaladars in Pakistan, some of which can handle deals of up to million. The committee also procures false passports, pays Al-Qaeda members, and oversees profit-driven businesses. In the 9/11 Commission Report, it was estimated that Al-Qaeda required $30million per year to conduct its operations. The Law Committee reviews Sharia law, and decides upon courses of action conform to it. The Islamic Study/Fatwah Committee issues religious edicts, such as an edict in 1998 telling Muslims to kill Americans. The Media Committee ran the now-defunct newspaper Nashrat al Akhbar () and handled public relations. In 2005, Al-Qaeda formed As-Sahab, a media production house, to supply its video and audio materials. After Al-Zawahiri (2022 - present) Al-Zawahiri was killed on July 31, 2022 in a drone strike in Afghanistan. In February 2023, a report from the United Nations, based on member state intelligence, concluded that de facto leadership of Al-Qaeda had passed to Saif al-Adel, who was operating out of Iran. Adel, a former Egyptian army officer, became a military instructor in Al-Qaeda camps in the 1990s and was known for his involvement in the Battle of Mogadishu. The report stated that al-Adel's leadership could not officially be declared by al-Qaeda because of "political sensitivities" of Afghan government in acknowledging the death of Al-Zawahiri as well as due to "theological and operational" challenges posed by the location of al-Adel in Iran. Command structure Most of Al Qaeda's top leaders and operational directors were veterans who fought against the Soviet invasion of Afghanistan in the 1980s. Osama bin Laden and his deputy, Ayman al-Zawahiri, were the leaders who were considered the operational commanders of the organization. Nevertheless, Al-Qaeda is not operationally managed by Ayman al-Zawahiri. Several operational groups exist, which consult with the leadership in situations where attacks are in preparation. Al-Qaeda central (AQC) is a conglomerate of expert committees, each in supervision of distinct tasks and objectives. Its membership is mostly composed of Egyptian Islamist leaders who participated in the anti-communist Afghan Jihad. Assisting them are hundreds of Islamic field operatives and commanders, based in various regions of the Muslim World. The central leadership assumes control of the doctrinal approach and overall propaganda campaign; while the regional commanders were empowered with independence in military strategy and political maneuvering. This novel hierarchy made it possible for the organisation to launch wide-range offensives. When asked in 2005 about the possibility of Al-Qaeda's connection to the July 7, 2005 London bombings, Metropolitan Police Commissioner Sir Ian Blair said: "Al-Qaeda is not an organization. Al-Qaeda is a way of working... but this has the hallmark of that approach... Al-Qaeda clearly has the ability to provide training... to provide expertise... and I think that is what has occurred here." On August 13, 2005, The Independent newspaper, reported that the July7 bombers had acted independently of an Al-Qaeda mastermind. Nasser al-Bahri, who was Osama bin Laden's bodyguard for four years in the run-up to 9/11 wrote in his memoir a highly detailed description of how the group functioned at that time. Al-Bahri described Al-Qaeda's formal administrative structure and vast arsenal. However, the author Adam Curtis argued that the idea of Al-Qaeda as a formal organization is primarily an American invention. Curtis contended the name "Al-Qaeda" was first brought to the attention of the public in the 2001 trial of bin Laden and the four men accused of the 1998 US embassy bombings in East Africa. Curtis wrote: During the 2001 trial, the US Department of Justice needed to show that bin Laden was the leader of a criminal organization in order to charge him in absentia under the Racketeer Influenced and Corrupt Organizations Act. The name of the organization and details of its structure were provided in the testimony of Jamal al-Fadl, who said he was a founding member of the group and a former employee of bin Laden. Questions about the reliability of al-Fadl's testimony have been raised by a number of sources because of his history of dishonesty, and because he was delivering it as part of a plea bargain agreement after being convicted of conspiring to attack US military establishments. Sam Schmidt, a defense attorney who defended al-Fadl said: Field operatives The number of individuals in the group who have undergone proper military training, and are capable of commanding insurgent forces, is largely unknown. Documents captured in the raid on bin Laden's compound in 2011 show that the core Al-Qaeda membership in 2002 was 170. In 2006, it was estimated that Al-Qaeda had several thousand commanders embedded in 40 countries. , it was believed that no more than 200–300 members were still active commanders. According to the 2004 BBC documentary The Power of Nightmares, Al-Qaeda was so weakly linked together that it was hard to say it existed apart from bin Laden and a small clique of close associates. The lack of any significant numbers of convicted Al-Qaeda members, despite a large number of arrests on terrorism charges, was cited by the documentary as a reason to doubt whether a widespread entity that met the description of Al-Qaeda existed. Al-Qaeda's commanders, as well as its sleeping agents, are hiding in different parts of the world to this day. They are mainly hunted by the American and Israeli secret services. Insurgent forces According to author Robert Cassidy, Al-Qaeda maintains two separate forces which are deployed alongside insurgents in Iraq and Pakistan. The first, numbering in the tens of thousands, was "organized, trained, and equipped as insurgent combat forces" in the Soviet–Afghan war. The force was composed primarily of foreign mujahideen from Saudi Arabia and Yemen. Many of these fighters went on to fight in Bosnia and Somalia for global jihad. Another group, which numbered 10,000 in 2006, live in the West and have received rudimentary combat training. Other analysts have described Al-Qaeda's rank and file as being "predominantly Arab" in its first years of operation, but that the organization also includes "other peoples" . It has been estimated that 62 percent of Al-Qaeda members have a university education. In 2011 and the following year, the Americans successfully settled accounts with Osama bin Laden, Anwar al-Awlaki, the organization's chief propagandist, and Abu Yahya al-Libi's deputy commander. The optimistic voices were already saying it was over for Al-Qaeda. Nevertheless, it was around this time that the Arab Spring greeted the region, the turmoil of which came great to Al-Qaeda's regional forces. Seven years later, Ayman al-Zawahiri became arguably the number one leader in the organization, implementing his strategy with systematic consistency. Tens of thousands loyal to Al-Qaeda and related organizations were able to challenge local and regional stability and ruthlessly attack their enemies in the Middle East, Africa, South Asia, Southeast Asia, Europe and Russia alike. In fact, from Northwest Africa to South Asia, Al-Qaeda had more than two dozen "franchise-based" allies. The number of Al-Qaeda militants was set at 20,000 in Syria alone, and they had 4,000 members in Yemen and about 7,000 in Somalia. The war was not over. In 2001, Al-Qaeda had around 20 functioning cells and 70,000 insurgents spread over sixty nations. According to latest estimates, the number of active-duty soldiers under its command and allied militias have risen to approximately 250,000 by 2018. Financing Al-Qaeda usually does not disburse funds for attacks, and very rarely makes wire transfers. In the 1990s, financing came partly from the personal wealth of Osama bin Laden. Other sources of income included the heroin trade and donations from supporters in Kuwait, Saudi Arabia and other Islamic Gulf states. A WikiLeaks-released 2009 internal US government cable stated that "terrorist funding emanating from Saudi Arabia remains a serious concern." Among the first pieces of evidence regarding Saudi Arabia's support for Al-Qaeda was the so-called "Golden Chain", a list of early Al-Qaeda funders seized during a 2002 raid in Sarajevo by Bosnian police. The hand-written list was validated by Al-Qaeda defector Jamal al-Fadl, and included the names of both donors and beneficiaries. Osama bin-Laden's name appeared seven times among the beneficiaries, while 20 Saudi and Gulf-based businessmen and politicians were listed among the donors. Notable donors included Adel Batterjee, and Wael Hamza Julaidan. Batterjee was designated as a terror financier by the US Department of the Treasury in 2004, and Julaidan is recognized as one of Al-Qaeda's founders. Documents seized during the 2002 Bosnia raid showed that Al-Qaeda widely exploited charities to channel financial and material support to its operatives across the globe. Notably, this activity exploited the International Islamic Relief Organization (IIRO) and the Muslim World League (MWL). The IIRO had ties with Al-Qaeda associates worldwide, including Al-Qaeda's deputy Ayman al Zawahiri. Zawahiri's brother worked for the IIRO in Albania and had actively recruited on behalf of Al-Qaeda. The MWL was openly identified by Al-Qaeda's leader as one of the three charities Al-Qaeda primarily relied upon for funding sources. Allegations of Qatari support Several Qatari citizens have been accused of funding Al-Qaeda. This includes Abd Al-Rahman al-Nuaimi, a Qatari citizen and a human-rights activist who founded the Swiss-based non-governmental organization (NGO) Alkarama. On December 18, 2013, the US Treasury designated Nuaimi as a terrorist for his activities supporting Al-Qaeda. The US Treasury has said Nuaimi "has facilitated significant financial support to Al-Qaeda in Iraq, and served as an interlocutor between Al-Qaeda in Iraq and Qatar-based donors". Nuaimi was accused of overseeing a $2million monthly transfer to Al-Qaeda in Iraq as part of his role as mediator between Iraq-based Al-Qaeda senior officers and Qatari citizens. Nuaimi allegedly entertained relationships with Abu-Khalid al-Suri, Al-Qaeda's top envoy in Syria, who processed a $600,000 transfer to Al-Qaeda in 2013. Nuaimi is also known to be associated with Abd al-Wahhab Muhammad 'Abd al-Rahman al-Humayqani, a Yemeni politician and founding member of Alkarama, who was listed as a Specially Designated Global Terrorist (SDGT) by the US Treasury in 2013. The US authorities claimed that Humayqani exploited his role in Alkarama to fundraise on behalf of Al-Qaeda in the Arabian Peninsula (AQAP). A prominent figure in AQAP, Nuaimi was also reported to have facilitated the flow of funding to AQAP affiliates based in Yemen. Nuaimi was also accused of investing funds in the charity directed by Humayqani to ultimately fund AQAP. About ten months after being sanctioned by the US Treasury, Nuaimi was also restrained from doing business in the UK. Another Qatari citizen, Kalifa Mohammed Turki Subayi, was sanctioned by the US Treasury on June 5, 2008, for his activities as a "Gulf-based Al-Qaeda financier". Subayi's name was added to the UN Security Council's Sanctions List in 2008 on charges of providing financial and material support to Al-Qaeda senior leadership. Subayi allegedly moved Al-Qaeda recruits to South Asia-based training camps. He also financially supported Khalid Sheikh Mohammed, a Pakistani national and senior Al-Qaeda officer who is believed to be the mastermind behind the September 11 attack according to the 9/11 Commission Report. Qataris provided support to al-Qaeda through the country's largest NGO, the Qatar Charity. Al-Qaeda defector al-Fadl, who was a former member of Qatar Charity, testified in court that Abdullah Mohammed Yusef, who served as Qatar Charity's director, was affiliated to Al-Qaeda and simultaneously to the National Islamic Front, a political group that gave al-Qaeda leader Osama Bin Laden harbor in Sudan in the early 1990s. It was alleged that in 1993 Osama bin Laden was using Middle East based Sunni charities to channel financial support to Al-Qaeda operatives overseas. The same documents also report Bin Laden's complaint that the failed assassination attempt of Egyptian President Hosni Mubarak had compromised the ability of Al-Qaeda to exploit charities to support its operatives to the extent it was capable of before 1995. Qatar financed Al-Qaeda's enterprises through Al-Qaeda's former affiliate in Syria, Jabhat al-Nusra. The funding was primarily channeled through kidnapping for ransom. The Consortium Against Terrorist Finance (CATF) reported that the Gulf country has funded al-Nusra since 2013. In 2017, Asharq Al-Awsat estimated that Qatar had disbursed $25million in support of al-Nusra through kidnapping for ransom. In addition, Qatar has launched fundraising campaigns on behalf of al-Nusra. Al-Nusra acknowledged a Qatar-sponsored campaign "as one of the preferred conduits for donations intended for the group". Strategy In the disagreement over whether Al-Qaeda's objectives are religious or political, Mark Sedgwick describes Al-Qaeda's strategy as political in the immediate term but with ultimate aims that are religious. On March 11, 2005, Al-Quds Al-Arabi published extracts from Saif al-Adel's document "Al Qaeda's Strategy to the Year 2020". Abdel Bari Atwan summarizes this strategy as comprising five stages to rid the Ummah from all forms of oppression: Provoke the United States and the West into invading a Muslim country by staging a massive attack or string of attacks on US soil that results in massive civilian casualties. Incite local resistance to occupying forces. Expand the conflict to neighboring countries and engage the US and its allies in a long war of attrition. Convert Al-Qaeda into an ideology and set of operating principles that can be loosely franchised in other countries without requiring direct command and control, and via these franchises incite attacks against the US and countries allied with the US until they withdraw from the conflict, as happened with the 2004 Madrid train bombings, but which did not have the same effect with the July 7, 2005 London bombings. The US economy will finally collapse by 2020, under the strain of multiple engagements in numerous places. This will lead to a collapse in the worldwide economic system, and lead to global political instability. This will lead to a global jihad led by Al-Qaeda, and a Wahhabi Caliphate will then be installed across the world. Atwan noted that, while the plan is unrealistic, "it is sobering to consider that this virtually describes the downfall of the Soviet Union." According to Fouad Hussein, a Jordanian journalist and author who has spent time in prison with Al-Zarqawi, Al-Qaeda's strategy consists of seven phases and is similar to the plan described in Al Qaeda's Strategy to the year 2020. These phases include: "The Awakening." This phase was supposed to last from 2001 to 2003. The goal of the phase is to provoke the United States to attack a Muslim country by executing an attack that kills many civilians on US soil. "Opening Eyes." This phase was supposed to last from 2003 to 2006. The goal of this phase was to recruit young men to the cause and to transform the Al-Qaeda group into a movement. Iraq was supposed to become the center of all operations with financial and military support for bases in other states. "Arising and Standing up", was supposed to last from 2007 to 2010. In this phase, Al-Qaeda wanted to execute additional attacks and focus their attention on Syria. Hussein believed other countries in the Arabian Peninsula were also in danger. Al-Qaeda expected a steady growth among their ranks and territories due to the declining power of the regimes in the Arabian Peninsula. The main focus of attack in this phase was supposed to be on oil suppliers and cyberterrorism, targeting the US economy and military infrastructure. The declaration of an Islamic Caliphate, which was projected between 2013 and 2016. In this phase, Al-Qaeda expected the resistance from Israel to be heavily reduced. The declaration of an "Islamic Army" and a "fight between believers and non-believers", also called "total confrontation". "Definitive Victory", projected to be completed by 2020. According to the seven-phase strategy, the war is projected to last less than two years. According to Charles Lister of the Middle East Institute and Katherine Zimmerman of the American Enterprise Institute, the new model of Al-Qaeda is to "socialize communities" and build a broad territorial base of operations with the support of local communities, also gaining income independent of the funding of sheiks. Name The English name of the organization is a simplified transliteration of the Arabic noun (), which means "the foundation" or "the base". The initial al- is the Arabic definite article "the", hence "the base". In Arabic, Al-Qaeda has four syllables (). However, since two of the Arabic consonants in the name are not phones found in the English language, the common naturalized English pronunciations include , and . Al-Qaeda's name can also be transliterated as al-Qaida, al-Qa'ida, or el-Qaida. The doctrinal concept of "Al-Qaeda" was first coined by the Palestinian Islamist scholar and Jihadist leader Abdullah Azzam in an April 1988 issue of Al-Jihad magazine to describe a religiously committed vanguard of Muslims who wage armed Jihad globally to liberate oppressed Muslims from foreign invaders, establish sharia (Islamic law) across the Islamic World by overthrowing the ruling secular governments; and thus restore the past Islamic prowess. This was to be implemented by establishing an Islamic state that would nurture generations of Muslim soldiers that would perpetually attack United States and its allied governments in the Muslim World. Numerous historical models were cited by Azzam as successful examples of his call; starting from the early Muslim conquests of the 7th century to the recent anti-Soviet Afghan Jihad of 1980s. According to Azzam's world-view: It is about time to think about a state that would be a solid base for the distribution of the (Islamic) creed, and a fortress to host the preachers from the hell of the Jahiliyyah [the pre-Islamic period]. Bin Laden explained the origin of the term in a videotaped interview with Al Jazeera journalist Tayseer Alouni in October 2001: It has been argued that two documents seized from the Sarajevo office of the Benevolence International Foundation prove the name was not simply adopted by the mujahideen movement and that a group called Al-Qaeda was established in August 1988. Both of these documents contain minutes of meetings held to establish a new military group, and contain the term "Al-Qaeda". Former British Foreign Secretary Robin Cook wrote that the word Al-Qaeda should be translated as "the database", because it originally referred to the computer file of the thousands of mujahideen militants who were recruited and trained with CIA help to defeat the Russians. In April 2002, the group assumed the name Qa'idat al-Jihad ( ), which means "the base of Jihad". According to Diaa Rashwan, this was "apparently as a result of the merger of the overseas branch of Egypt's al-Jihad, which was led by Ayman al-Zawahiri, with the groups Bin Laden brought under his control after his return to Afghanistan in the mid-1990s." Ideology The militant Islamist Salafist movement of Al-Qaeda developed during the Islamic revival and the rise of the Islamist movement after the Iranian Revolution (1978–1979) and the Afghan Jihad (1979–1989). Many scholars have argued that the writings of Islamic author and thinker Sayyid Qutb inspired the Al-Qaeda organization. In the 1950s and 1960s, Qutb preached that because of the lack of sharia law, the Muslim world was no longer Muslim, and had reverted to the pre-Islamic ignorance known as jahiliyyah. To restore Islam, Qutb argued that a vanguard of righteous Muslims was needed in order to establish "true Islamic states", implement sharia, and rid the Muslim world of any non-Muslim influences. In Qutb's view, the enemies of Islam included "world Jewry", which "plotted conspiracies" and opposed Islam. Qutb envisioned this vanguard to march forward to wage armed Jihad against tyrannical regimes after purifying from the wider Jahili societies and organising themselves under a righteous Islamic leadership; which he viewed as the model of early Muslims in the Islamic state of Medina under the leadership of Islamic Prophet Muhammad. This idea would directly influence many Islamist figures such as Abdullah Azzam and Usama Bin Laden; and became the core rationale for the formulation of "Al-Qaeda" concept in the near future. Outlining his strategy to topple the existing secular orders, Qutb argued in Milestones: [It is necessary that] a Muslim community to come into existence which believes that ‘there is no deity except God,’ which commits itself to obey none but God, denying all other authority, and which challenges the legality of any law which is not based on this belief.. . It should come into the battlefield with the determination that its strategy, its social organization, and the relationship between its individuals should be firmer and more powerful than the existing jahili system. In the words of Mohammed Jamal Khalifa, a close college friend of bin Laden: Qutb also influenced Ayman al-Zawahiri. Zawahiri's uncle and maternal family patriarch, Mafouz Azzam, was Qutb's student, protégé, personal lawyer, and an executor of his estate. Azzam was one of the last people to see Qutb alive before his execution. Zawahiri paid homage to Qutb in his work Knights under the Prophet's Banner. Qutb argued that many Muslims were not true Muslims. Some Muslims, Qutb argued, were apostates. These alleged apostates included leaders of Muslim countries, since they failed to enforce sharia law. He also alleged that the West approaches the Muslim World with a "crusading spirit"; in spite of the decline of religious values in the 20th century Europe. According to Qutb; the hostile and imperialist attitudes exhibited by Europeans and Americans towards Muslim countries, their support for Zionism, etc. reflected hatred amplified over a millennia of wars such as the Crusades and was born out of Roman materialist and utilitarian outlooks that viewed the world in monetary terms. Formation The Afghan jihad against the pro-Soviet government further developed the Salafist Jihadist movement which inspired Al-Qaeda. During this period, Al-Qaeda embraced the ideals of the South Asian militant revivalist Sayyid Ahmad Shahid (d. 1831/1246 A.H) who led a Jihad movement against British India from the frontiers of Afghanistan and Khyber-Pakhtunkwa in the early 19th century. Al-Qaeda readily adopted Sayyid Ahmad's doctrines such as returning to the purity of early generations (Salaf as-Salih), antipathy towards Western influences and restoration of Islamic political power. According to Pakistani journalist Hussain Haqqani, Objectives The long-term objective of Al-Qaeda is to unite the Muslim World under a supra-national Islamic state known as the Khilafah (Caliphate), headed by an elected Caliph descended from the Ahl al-Bayt (Prophetic family). The immediate objectives include the expulsion of American troops from the Arabian Peninsula, waging armed Jihad to topple US-allied governments in the region, etc. The following are the goals and some of the general policies outlined in Al-Qaeda's Founding Charter "Al-Qaeda's Structure and Bylaws" issued in the meetings in Peshawar in 1988.: Theory of Islamic State Al-Qaeda aims to establish an Islamic state in the Arab World, modelled after the Rashidun Caliphate, by initiating a global Jihad against the "International Jewish-Crusader Alliance" led by the United States, which it sees as the "external enemy" and against the secular governments in Muslim countries, that are described as "the apostate domestic enemy". Once foreign influences and the secular ruling authorities are removed from Muslim countries through Jihad; al-Qaeda supports elections to choose the rulers of its proposed Islamic states. This is to be done through representatives of leadership councils (Shura) that would ensure the implementation of Shari'a (Islamic law). However, it opposes elections that institute parliaments which empower Muslim and non-Muslim legislators to collaborate in making laws of their own choosing. In the second edition of his book Knights Under the Banner of the Prophet, Ayman Al Zawahiri writes: Grievances A recurring theme in al-Qaeda's ideology is the perpetual grievance over the violent subjugation of Islamic dissidents by the authoritarian, secularist regimes allied to the West. Al-Qaeda denounces these post-colonial governments as a system led by Westernised elites designed to advance neo-colonialism and maintain Western hegemony over the Muslim World. The most prominent topic of grievance is over the American foreign policy in the Arab World; especially over its strong economic and military support to Israel. Other concerns of resentment include presence of NATO troops to support allied regimes; injustices committed against Muslims in Kashmir, Chechnya, Xinjiang, Syria, Afghanistan, Iraq etc. Religious compatibility Abdel Bari Atwan wrote that: On the other hand, Professor Peter Mandaville states that Al-Qaeda follows a pragmatic policy in forming its local affiliates, with various cells being sub-contracted to Shia Muslim and non-Muslim members. The top-down chain of command means that each unit is answerable directly to central leadership, while they remain ignorant of their counterparts' presence or activities. These transnational networks of autonomous supply chains, financiers, underground militias and political supporters were set up during the 1990s, when Bin Laden's immediate aim was the expulsion of American troops from the Arabian Peninsula. Attacks on civilians Under the leadership of Osama Bin Laden and Ayman al-Zawahiri, Al-Qaeda organization adopted the strategy of targeting non-combatant civilians of enemy states that indiscriminately attacked Muslims. Following the September 11 attacks, al-Qaeda provided a justification for the killing of non-combatants/civilians, entitled, "A Statement from Qaidat al-Jihad Regarding the Mandates of the Heroes and the Legality of the Operations in New York and Washington". According to a couple of critics, Quintan Wiktorowicz and John Kaltner, it provides "ample theological justification for killing civilians in almost any imaginable situation." Among these justifications are that America is leading the west in waging a War on Islam so that attacks on America are a defense of Islam and any treaties and agreements between Muslim majority states and Western countries that would be violated by attacks are null and void. According to the tract, several conditions allow for the killing of civilians including: retaliation for the American war on Islam which al-Qaeda alleges has targeted "Muslim women, children and elderly"; when it is too difficult to distinguish between non-combatants and combatants when attacking an enemy "stronghold" (hist) and/or non-combatants remain in enemy territory, killing them is allowed; those who assist the enemy "in deed, word, mind" are eligible for killing, and this includes the general population in democratic countries because civilians can vote in elections that bring enemies of Islam to power; the necessity of killing in the war to protect Islam and Muslims; the prophet Muhammad, when asked whether the Muslim fighters could use the catapult against the village of Taif, replied affirmatively, even though the enemy fighters were mixed with a civilian population; if the women, children and other protected groups serve as human shields for the enemy; if the enemy has broken a treaty, killing of civilians is permitted. Under the leadership of Sayf al-Adel, Al-Qaeda's strategy has underwent transformation and the organization has officially renounced the tactic of attacking civilian targets of enemies. In his book "Free Reading of 33 Strategies of War" published in 2023, Sayf al-Adel counselled Islamist fighters to prioritize attacking the police forces, military soldiers, state assets of enemy governments, etc. which he described as acceptable targets in military operations. Asserting that attacking women and children of enemies are contrary to Islamic values, Sayf al-Adel asked: "If we target the general public, how can we expect their people to accept our call to Islam?" History Attacks Al-Qaeda has carried out a total of six major attacks, four of them in its jihad against America. In each case the leadership planned the attack years in advance, arranging for the shipment of weapons and explosives and using its businesses to provide operatives with safehouses and false identities. 1991 To prevent the former Afghan king Mohammed Zahir Shah from coming back from exile and possibly becoming head of a new government, bin Laden instructed a Portuguese convert to Islam, Paulo Jose de Almeida Santos, to assassinate Zahir Shah. On November 4, 1991, Santos entered the king's villa in Rome posing as a journalist and tried to stab him with a dagger. A tin of cigarillos in the king's breast pocket deflected the blade and saved Zahir Shah's life. Santos was apprehended and jailed for 10 years in Italy. 1992 On December 29, 1992, Al-Qaeda launched the 1992 Yemen hotel bombings. Two bombs were detonated in Aden, Yemen. The first target was the Movenpick Hotel and the second was the parking lot of the Goldmohur Hotel. The bombings were an attempt to eliminate American soldiers on their way to Somalia to take part in the international famine relief effort, Operation Restore Hope. Internally, Al-Qaeda considered the bombing a victory that frightened the Americans away, but in the US, the attack was barely noticed. No American soldiers were killed because no soldiers were staying in the hotel at the time it was bombed, however, an Australian tourist and a Yemeni hotel worker were killed in the bombing. Seven others, who were mostly Yemeni, were severely injured. Two fatwas are said to have been appointed by Al-Qaeda's members, Mamdouh Mahmud Salim, to justify the killings according to Islamic law. Salim referred to a famous fatwa appointed by Ibn Taymiyyah, a 13th-century scholar admired by Wahhabis, which sanctioned resistance by any means during the Mongol invasions. Late 1990s In 1996, bin Laden personally engineered a plot to assassinate United States President Bill Clinton while the president was in Manila for the Asia-Pacific Economic Cooperation. However, intelligence agents intercepted a message before the motorcade was to leave, and alerted the US Secret Service. Agents later discovered a bomb planted under a bridge. On August 7, 1998, Al-Qaeda bombed the US embassies in East Africa, killing 224 people, including 12 Americans. In retaliation, a barrage of cruise missiles launched by the US military devastated an Al-Qaeda base in Khost, Afghanistan. The network's capacity was unharmed. In late 1999 and 2000, Al-Qaeda planned attacks to coincide with the millennium, masterminded by Abu Zubaydah and involving Abu Qatada, which would include the bombing of Christian holy sites in Jordan, the bombing of Los Angeles International Airport by Ahmed Ressam, and the bombing of the . On October 12, 2000, Al-Qaeda militants in Yemen bombed the missile destroyer USS Cole in a suicide attack, killing 17 US servicemen and damaging the vessel while it lay offshore. Inspired by the success of such a brazen attack, Al-Qaeda's command core began to prepare for an attack on the US itself. September 11 attacks The September 11 attacks on America by Al-Qaeda killed 2,996 people2,507 civilians, 343 firefighters, 72 law enforcement officers, 55 military personnel as well as 19 hijackers who committed murder-suicide. Two commercial airliners were deliberately flown into the twin towers of the World Trade Center, a third into the Pentagon, and a fourth, originally intended to target either the United States Capitol or the White House, crashed in a field in Stonycreek Township near Shanksville, Pennsylvania after passengers revolted. It was the deadliest foreign attack on American soil since the Japanese attack on Pearl Harbor on December 7, 1941, and to this day remains the deadliest terrorist attack in human history. The attacks were conducted by Al-Qaeda, acting in accord with the 1998 fatwa issued against the US and its allies by persons under the command of bin Laden, al-Zawahiri, and others. Evidence points to suicide squads led by Al-Qaeda military commander Mohamed Atta as the culprits of the attacks, with bin Laden, Ayman al-Zawahiri, Khalid Sheikh Mohammed, and Hambali as the key planners and part of the political and military command. Messages issued by bin Laden after September 11, 2001, praised the attacks, and explained their motivation while denying any involvement. Bin Laden legitimized the attacks by identifying grievances felt by both mainstream and Islamist Muslims, such as the general perception that the US was actively oppressing Muslims. Bin Laden asserted that America was massacring Muslims in "Palestine, Chechnya, Kashmir and Iraq" and Muslims should retain the "right to attack in reprisal". He also claimed the 9/11 attacks were not targeted at people, but "America's icons of military and economic power", despite the fact he planned to attack in the morning when most of the people in the intended targets were present and thus generating the maximum number of human casualties. Evidence later came to light that the original targets for the attack may have been nuclear power stations on the US East Coast. The targets were later altered by Al-Qaeda, as it was feared that such an attack "might get out of hand". Designation as a terrorist group Al-Qaeda is deemed a designated terrorist group by the following countries and international organizations: designated Al-Qaeda's Turkish branch United Nations Security Council War on terror In the immediate aftermath of the 9/11 attacks, the US government responded, and began to prepare its armed forces to overthrow the Taliban, which it believed was harboring Al-Qaeda. The US offered Taliban leader Mullah Omar a chance to surrender bin Laden and his top associates. The first forces to be inserted into Afghanistan were paramilitary officers from the CIA's elite Special Activities Division (SAD). The Taliban offered to turn over bin Laden to a neutral country for trial if the US would provide evidence of bin Laden's complicity in the attacks. US President George W. Bush responded by saying: "We know he's guilty. Turn him over", and British Prime Minister Tony Blair warned the Taliban regime: "Surrender bin Laden, or surrender power." Soon thereafter the US and its allies invaded Afghanistan, and together with the Afghan Northern Alliance removed the Taliban government as part of the war in Afghanistan. As a result of the US special forces and air support for the Northern Alliance ground forces, a number of Taliban and Al-Qaeda training camps were destroyed, and much of the operating structure of Al-Qaeda is believed to have been disrupted. After being driven from their key positions in the Tora Bora area of Afghanistan, many Al-Qaeda fighters tried to regroup in the rugged Gardez region of the nation. By early 2002, Al-Qaeda had been dealt a serious blow to its operational capacity, and the Afghan invasion appeared to be a success. Nevertheless, a significant Taliban insurgency remained in Afghanistan. Debate continued regarding the nature of Al-Qaeda's role in the 9/11 attacks. The US State Department released a videotape showing bin Laden speaking with a small group of associates somewhere in Afghanistan shortly before the Taliban was removed from power. Although its authenticity has been questioned by a couple of people, the tape definitively implicates bin Laden and Al-Qaeda in the September 11 attacks. The tape was aired on many television channels, with an accompanying English translation provided by the US Defense Department. In September 2004, the 9/11 Commission officially concluded that the attacks were conceived and implemented by al-Qaeda operatives. In October 2004, bin Laden appeared to claim responsibility for the attacks in a videotape released through Al Jazeera, saying he was inspired by Israeli attacks on high-rises in the 1982 invasion of Lebanon: "As I looked at those demolished towers in Lebanon, it entered my mind that we should punish the oppressor in kind and that we should destroy towers in America in order that they taste some of what we tasted and so that they be deterred from killing our women and children." By the end of 2004, the US government proclaimed that two-thirds of the most senior Al-Qaeda figures from 2001 had been captured and interrogated by the CIA: Abu Zubaydah, Ramzi bin al-Shibh and Abd al-Rahim al-Nashiri in 2002; Khalid Sheikh Mohammed in 2003; and Saif al Islam el Masry in 2004. Mohammed Atef and several others were killed. The West was criticized for not being able to handle Al-Qaida despite a decade of the war. Activities Africa Al-Qaeda involvement in Africa has included a number of bombing attacks in North Africa, while supporting parties in civil wars in Eritrea and Somalia. From 1991 to 1996, bin Laden and other Al-Qaeda leaders were based in Sudan. Islamist rebels in the Sahara calling themselves Al-Qaeda in the Islamic Maghreb have stepped up their violence in recent years. French officials say the rebels have no real links to the Al-Qaeda leadership, but this has been disputed. It seems likely that bin Laden approved the group's name in late 2006, and the rebels "took on the al Qaeda franchise label", almost a year before the violence began to escalate. In Mali, the Ansar Dine faction was also reported as an ally of Al-Qaeda in 2013. The Ansar al Dine faction aligned themselves with the AQIM. In 2011, Al-Qaeda's North African wing condemned Libyan leader Muammar Gaddafi and declared support for the Anti-Gaddafi rebels. Following the Libyan Civil War, the removal of Gaddafi and the ensuing period of post-civil war violence in Libya, various Islamist militant groups affiliated with Al-Qaeda were able to expand their operations in the region. The 2012 Benghazi attack, which resulted in the death of US Ambassador J. Christopher Stevens and three other Americans, is suspected of having been carried out by various Jihadist networks, such as Al-Qaeda in the Islamic Maghreb, Ansar al-Sharia and several other Al-Qaeda affiliated groups. The capture of Nazih Abdul-Hamed al-Ruqai, a senior Al-Qaeda operative wanted by the United States for his involvement in the 1998 United States embassy bombings, on October 5, 2013, by US Navy Seals, FBI and CIA agents illustrates the importance the US and other Western allies have placed on North Africa. Europe Prior to the September 11 attacks, Al-Qaeda was present in Bosnia and Herzegovina, and its members were mostly veterans of the El Mudžahid detachment of the Bosnian Muslim Army of the Republic of Bosnia and Herzegovina. Three Al-Qaeda operatives carried out the Mostar car bombing in 1997. The operatives were closely linked to and financed by the Saudi High Commission for Relief of Bosnia and Herzegovina founded by then-prince King Salman of Saudi Arabia. Before the 9/11 attacks and the US invasion of Afghanistan, westerners who had been recruits at Al-Qaeda training camps were sought after by Al-Qaeda's military wing. Language skills and knowledge of Western culture were generally found among recruits from Europe, such was the case with Mohamed Atta, an Egyptian national studying in Germany at the time of his training, and other members of the Hamburg Cell. Osama bin Laden and Mohammed Atef would later designate Atta as the ringleader of the 9/11 hijackers. Following the attacks, Western intelligence agencies determined that Al-Qaeda cells operating in Europe had aided the hijackers with financing and communications with the central leadership based in Afghanistan. In 2003, Islamists carried out a series of bombings in Istanbul killing fifty-seven people and injuring seven hundred. Seventy-four people were charged by the Turkish authorities. Some had previously met bin Laden, and though they specifically declined to pledge allegiance to Al-Qaeda they asked for its blessing and help. In 2009, three Londoners, Tanvir Hussain, Assad Sarwar and Ahmed Abdullah Ali, were convicted of conspiring to detonate bombs disguised as soft drinks on seven airplanes bound for Canada and the US The MI5 investigation regarding the plot involved more than a year of surveillance work conducted by over two hundred officers. British and US officials said the plotunlike many similar homegrown European Islamic militant plotswas directly linked to Al-Qaeda and guided by senior Al-Qaeda members in Pakistan. In 2012, Russian Intelligence indicated that Al-Qaeda had given a call for "forest jihad" and has been starting massive forest fires as part of a strategy of "thousand cuts". Arab world Following Yemeni unification in 1990, Wahhabi networks began moving missionaries into the country. Although it is unlikely bin Laden or Saudi Al-Qaeda were directly involved, the personal connections they made would be established over the next decade and used in the USS Cole bombing. Concerns grew over al-Qaeda's group in Yemen. In Iraq, al-Qaeda forces loosely associated with the leadership were embedded in the Jama'at al-Tawhid wal-Jihad group commanded by Abu Musab al-Zarqawi. Specializing in suicide operations, they have been a "key driver" of the Sunni insurgency. Although they played a small part in the overall insurgency, between 30% and 42% of all suicide bombings which took place in the early years were claimed by Zarqawi's group. Reports have indicated that oversights such as the failure to control access to the Qa'qaa munitions factory in Yusufiyah have allowed large quantities of munitions to fall into the hands of al-Qaida. In November 2010, the militant group Islamic State of Iraq, which is linked to al-Qaeda in Iraq, threatened to "exterminate all Iraqi Christians". Al-Qaeda did not begin training Palestinians until the late 1990s. Large groups such as Hamas and Palestinian Islamic Jihad have rejected an alliance with al-Qaeda, fearing that al-Qaeda will co-opt their cells. This may have changed recently. The Israeli security and intelligence services believe al-Qaeda has managed to infiltrate operatives from the Occupied Territories into Israel, and is waiting for an opportunity to attack. , Saudi Arabia, Qatar and Turkey are openly supporting the Army of Conquest, an umbrella rebel group fighting in the Syrian Civil War against the Syrian government that reportedly includes an al-Qaeda linked al-Nusra Front and another Salafi coalition known as Ahrar al-Sham. Kashmir Bin Laden and Ayman al-Zawahiri consider India to be a part of an alleged Crusader-Zionist-Hindu conspiracy against the Islamic world. According to a 2005 report by the Congressional Research Service, bin Laden was involved in training militants for Jihad in Kashmir while living in Sudan in the early 1990s. By 2001, Kashmiri militant group Harkat-ul-Mujahideen had become a part of the al-Qaeda coalition. According to the United Nations High Commissioner for Refugees (UNHCR), al-Qaeda was thought to have established bases in Pakistan administered Kashmir (in Azad Kashmir, and to some extent in Gilgit–Baltistan) during the 1999 Kargil War and continued to operate there with tacit approval of Pakistan's Intelligence services. Many of the militants active in Kashmir were trained in the same madrasahs as Taliban and Al-Qaeda. Fazlur Rehman Khalil of Kashmiri militant group Harkat-ul-Mujahideen was a signatory of al-Qaeda's 1998 declaration of Jihad against America and its allies. In a 'Letter to American People' (2002), bin Laden wrote that one of the reasons he was fighting America was because of its support to India on the Kashmir issue. In November 2001, Kathmandu airport went on high alert after threats that bin Laden planned to hijack a plane and crash it into a target in New Delhi. In 2002, US Secretary of Defense Donald Rumsfeld, on a trip to Delhi, suggested that Al-Qaeda was active in Kashmir though he did not have any evidence. Rumsfeld proposed hi-tech ground sensors along the Line of Control to prevent militants from infiltrating into Indian-administered Kashmir. An investigation in 2002 found evidence that al-Qaeda and its affiliates were prospering in Pakistan-administered Kashmir with tacit approval of Pakistan's Inter-Services Intelligence. In 2002, a special team of Special Air Service and Delta Force was sent into Indian-Administered Kashmir to hunt for bin Laden after receiving reports that he was being sheltered by Kashmiri militant group Harkat-ul-Mujahideen, which had been responsible for kidnapping western tourists in Kashmir in 1995. Britain's highest-ranking al-Qaeda operative Rangzieb Ahmed had previously fought in Kashmir with the group Harkat-ul-Mujahideen and spent time in Indian prison after being captured in Kashmir. US officials believe al-Qaeda was helping organize attacks in Kashmir in order to provoke conflict between India and Pakistan. Their strategy was to force Pakistan to move its troops to the border with India, thereby relieving pressure on al-Qaeda elements hiding in northwestern Pakistan. In 2006 al-Qaeda claimed they had established a wing in Kashmir. However Indian Army General H. S. Panag argued that the army had ruled out the presence of al-Qaeda in Indian-administered Jammu and Kashmir. Panag also said al-Qaeda had strong ties with Kashmiri militant groups Lashkar-e-Taiba and Jaish-e-Mohammed based in Pakistan. It has been noted that Waziristan has become a battlefield for Kashmiri militants fighting NATO in support of al-Qaeda and Taliban. Dhiren Barot, who wrote the Army of Madinah in Kashmir and was an al-Qaeda operative convicted for involvement in the 2004 financial buildings plot, had received training in weapons and explosives at a militant training camp in Kashmir. Maulana Masood Azhar, the founder of Kashmiri group Jaish-e-Mohammed, is believed to have met bin Laden several times and received funding from him. In 2002, Jaish-e-Mohammed organized the kidnapping and murder of Daniel Pearl in an operation run in conjunction with al-Qaeda and funded by bin Laden. According to American counter-terrorism expert Bruce Riedel, al-Qaeda and Taliban were closely involved in the 1999 hijacking of Indian Airlines Flight 814 to Kandahar which led to the release of Maulana Masood Azhar and Ahmed Omar Saeed Sheikh from an Indian prison. This hijacking, Riedel said, was rightly described by then Indian Foreign Minister Jaswant Singh as a 'dress rehearsal' for September 11 attacks. Bin Laden personally welcomed Azhar and threw a lavish party in his honor after his release. Ahmed Omar Saeed Sheikh, who had been in prison for his role in the 1994 kidnappings of Western tourists in India, went on to murder Daniel Pearl and was sentenced to death in Pakistan. Al-Qaeda operative Rashid Rauf, who was one of the accused in 2006 transatlantic aircraft plot, was related to Maulana Masood Azhar by marriage. Lashkar-e-Taiba, a Kashmiri militant group which is thought to be behind 2008 Mumbai attacks, is also known to have strong ties to senior al-Qaeda leaders living in Pakistan. In late 2002, top Al-Qaeda operative Abu Zubaydah was arrested while being sheltered by Lashkar-e-Taiba in a safe house in Faisalabad. The FBI believes al-Qaeda and Lashkar have been 'intertwined' for a long time while the CIA has said that al-Qaeda funds Lashkar-e-Taiba. Jean-Louis Bruguière told Reuters in 2009 that "Lashkar-e-Taiba is no longer a Pakistani movement with only a Kashmir political or military agenda. Lashkar-e-Taiba is a member of al-Qaeda." In a video released in 2008, American-born senior al-Qaeda operative Adam Yahiye Gadahn said that "victory in Kashmir has been delayed for years; it is the liberation of the jihad there from this interference which, Allah willing, will be the first step towards victory over the Hindu occupiers of that Islam land." In September 2009, a US drone strike reportedly killed Ilyas Kashmiri who was the chief of Harkat-ul-Jihad al-Islami, a Kashmiri militant group associated with al-Qaeda. Kashmiri was described by Bruce Riedel as a 'prominent' Al-Qaeda member while others have described him as head of military operations for al-Qaeda. Kashmiri was also charged by the US in a plot against Jyllands-Posten, the Danish newspaper which was at the center of Jyllands-Posten Muhammad cartoons controversy. US officials also believe that Kashmiri was involved in the Camp Chapman attack against the CIA. In January 2010, Indian authorities notified Britain of an al-Qaeda plot to hijack an Indian airlines or Air India plane and crash it into a British city. This information was uncovered from interrogation of Amjad Khwaja, an operative of Harkat-ul-Jihad al-Islami, who had been arrested in India. In January 2010, US Defense secretary Robert Gates, while on a visit to Pakistan, said that al-Qaeda was seeking to destabilize the region and planning to provoke a nuclear war between India and Pakistan. Internet Al-Qaeda and its successors have migrated online to escape detection in an atmosphere of increased international vigilance. The group's use of the Internet has grown more sophisticated, with online activities that include financing, recruitment, networking, mobilization, publicity, and information dissemination, gathering and sharing. Abu Ayyub al-Masri's al-Qaeda movement in Iraq regularly releases short videos glorifying the activity of jihadist suicide bombers. In addition, both before and after the death of Abu Musab al-Zarqawi (the former leader of al-Qaeda in Iraq), the umbrella organization to which Al-Qaeda in Iraq belongs, the Mujahideen Shura Council, has a regular presence on the Web. The range of multimedia content includes guerrilla training clips, stills of victims about to be murdered, testimonials of suicide bombers, and videos that show participation in jihad through stylized portraits of mosques and musical scores. A website associated with Al-Qaeda posted a video of captured American entrepreneur Nick Berg being decapitated in Iraq. Other decapitation videos and pictures, including those of Paul Johnson, Kim Sun-il, and Daniel Pearl, were first posted on jihadist websites. In December 2004 an audio message claiming to be from bin Laden was posted directly to a website, rather than sending a copy to al Jazeera as he had done in the past. Al-Qaeda turned to the Internet for release of its videos in order to be certain they would be available unedited, rather than risk the possibility of al Jazeera editing out anything critical of the Saudi royal family. Alneda.com and Jehad.net were perhaps the most significant al-Qaeda websites. Alneda was initially taken down by American Jon Messner, but the operators resisted by shifting the site to various servers and strategically shifting content. The US government charged a British information technology specialist, Babar Ahmad, with terrorist offences related to his operating a network of English-language al-Qaeda websites, such as Azzam.com. He was convicted and sentenced to years in prison. Online communications In 2007, al-Qaeda released Mujahedeen Secrets, encryption software used for online and cellular communications. A later version, Mujahideen Secrets 2, was released in 2008. Aviation network al-Qaeda is believed to be operating a clandestine aviation network including "several Boeing 727 aircraft", turboprops and executive jets, according to a 2010 Reuters story. Based on a US Department of Homeland Security report, the story said al-Qaeda is possibly using aircraft to transport drugs and weapons from South America to various unstable countries in West Africa. A Boeing 727 can carry up to ten tons of cargo. The drugs eventually are smuggled to Europe for distribution and sale, and the weapons are used in conflicts in Africa and possibly elsewhere. Gunmen with links to al-Qaeda have been increasingly kidnapping Europeans for ransom. The profits from the drug and weapon sales, and kidnappings can, in turn, fund more militant activities. Involvement in military conflicts The following is a list of military conflicts in which al-Qaeda and its direct affiliates have taken part militarily. Alleged CIA involvement Experts debate the notion that the al-Qaeda attacks were an indirect consequence of the American CIA's Operation Cyclone program to help the Afghan mujahideen. Robin Cook, British Foreign Secretary from 1997 to 2001, has written that al-Qaeda and bin Laden were "a product of a monumental miscalculation by western security agencies", and that "Al-Qaida, literally 'the database', was originally the computer file of the thousands of mujahideen who were recruited and trained with help from the CIA to defeat the Russians." Munir Akram, Permanent Representative of Pakistan to the United Nations from 2002 to 2008, wrote in a letter published in The New York Times on January 19, 2008: CNN journalist Peter Bergen, Pakistani ISI Brigadier Mohammad Yousaf, and CIA operatives involved in the Afghan program, such as Vincent Cannistraro, deny that the CIA or other American officials had contact with the foreign mujahideen or bin Laden, or that they armed, trained, coached or indoctrinated them. In his 2004 book Ghost Wars, Steve Coll writes that the CIA had contemplated providing direct support to the foreign mujahideen, but that the idea never moved beyond discussions. Bergen and others argue that there was no need to recruit foreigners unfamiliar with the local language, customs or lay of the land since there were a quarter of a million local Afghans willing to fight. Bergen further argues that foreign mujahideen had no need for American funds since they received several million dollars per year from internal sources. Lastly, he argues that Americans could not have trained the foreign mujahideen because Pakistani officials would not allow more than a handful of them to operate in Pakistan and none in Afghanistan, and the Afghan Arabs were almost invariably militant Islamists reflexively hostile to Westerners whether or not the Westerners were helping the Muslim Afghans. According to Bergen, who conducted the first television interview with bin Laden in 1997: the idea that "the CIA funded bin Laden or trained bin Laden... [is] a folk myth. There's no evidence of this... Bin Laden had his own money, he was anti-American and he was operating secretly and independently... The real story here is the CIA didn't really have a clue about who this guy was until 1996 when they set up a unit to really start tracking him." Jason Burke also wrote: Broader influence Anders Behring Breivik, the perpetrator of the 2011 Norway attacks, was inspired by al-Qaeda, calling it "the most successful revolutionary movement in the world." While admitting different aims, he sought to "create a European version of Al-Qaida." The appropriate response to offshoots is a subject of debate. A journalist reported in 2012 that a senior US military planner had asked: "Should we resort to drones and Special Operations raids every time some group raises the black banner of al Qaeda? How long can we continue to chase offshoots of offshoots around the world?" Criticism According to CNN journalists Peter Bergen and Paul Cruickshank, a number of "religious scholars, former fighters and militants" who previously supported Islamic State of Iraq (ISI) had turned against the Al-Qaeda-supported Iraqi insurgency in 2008; due to ISI's indiscriminate attacks against civilians while targeting US-led coalition forces. American military analyst Bruce Riedel wrote in 2008 that "a wave of revulsion" arose against ISI, which enabled US-allied Sons of Iraq faction to turn various tribal leaders in the Anbar region against the Iraqi insurgency. In response, Bin Laden and Zawahiri issued public statements urging Muslims to rally behind ISI leadership and support the armed struggle against American forces. In response to Noman Benotman, a former militant member of the Libyan Islamic Fighting Group (LIFG), went public with an open letter of criticism to Ayman al-Zawahiri in November 2007, after persuading the imprisoned senior leaders of his former group to enter into peace negotiations with the Libyan regime. While Ayman al-Zawahiri announced the affiliation of the group with Al-Qaeda in November 2007, the Libyan government released 90 members of the group from prison several months after "they were said to have renounced violence." In 2007, on the anniversary of the September 11 attacks, the Saudi sheikh Salman al-Ouda delivered a personal rebuke to bin Laden. Al-Ouda addressed Al-Qaeda's leader on television asking him: According to Pew polls, support for Al-Qaeda had dropped in the Muslim world in the years before 2008. In Saudi Arabia, only ten percent had a favorable view of Al-Qaeda, according to a December 2007 poll by Terror Free Tomorrow, a Washington-based think tank. In 2007, the imprisoned Dr. Fadl, who was an influential Afghan Arab and former associate of Ayman al-Zawahiri, withdrew his support from al-Qaeda and criticized the organization in his book Wathiqat Tarshid Al-'Aml Al-Jihadi fi Misr w'Al-'Alam (). In response, Al-Zawahiri accused Dr. Fadl of promoting "an Islam without jihad" that aligns with Western interests and wrote a nearly two hundred pages long treatise, titled "The Exoneration" which appeared on the Internet in March 2008. In his treatise, Zawahiri justified military strikes against US targets as retaliatory attacks to defend Muslim community against American aggression. In an online town hall forum conducted in December 2007, Zawahiri denied that al-Qaeda deliberately targeted innocents and accused the American coalition of killing innocent people. Although once associated with al-Qaeda, in September 2009 LIFG completed a new "code" for jihad, a 417-page religious document entitled "Corrective Studies". Given its credibility and the fact that several other prominent Jihadists in the Middle East have turned against Al-Qaeda, the LIFG's reversal may be an important step toward staunching Al-Qaeda's recruitment. Other criticisms Bilal Abdul Kareem, an American journalist based in Syria created a documentary about al-Shabab, Al-Qaeda's affiliate in Somalia. The documentary included interviews with former members of the group who stated their reasons for leaving al-Shabab. The members made accusations of segregation, lack of religious awareness and internal corruption and favoritism. In response to Kareem, the Global Islamic Media Front condemned Kareem, called him a liar, and denied the accusations from the former fighters. In mid-2014 after the Islamic State of Iraq and the Levant declared that they had restored the Caliphate, an audio statement was released by the then-spokesman of the group Abu Muhammad al-Adnani claiming that "the legality of all emirates, groups, states, and organizations, becomes null by the expansion of the Caliphate's authority." The speech included a religious refutation of Al-Qaeda for being too lenient regarding Shiites and their refusal to recognize the authority Abu Bakr al-Baghdadi, al-Adnani specifically noting: "It is not suitable for a state to give allegiance to an organization." He also recalled a past instance in which Osama bin Laden called on Al-Qaeda members and supporters to give allegiance to Abu Omar al-Baghdadi when the group was still solely operating in Iraq, as the Islamic State of Iraq, and condemned Ayman al-Zawahiri for not making this same claim for Abu Bakr al-Baghdadi. Zawahiri was encouraging factionalism and division between former allies of ISIL such as the al-Nusra Front. See also Al-Qaeda involvement in Asia Al Qaeda Network Exord Allegations of support system in Pakistan for Osama bin Laden Belligerents in the Syrian civil war Bin Laden Issue Station (former CIA unit for tracking bin Laden) Steven Emerson Fatawā of Osama bin Laden International propagation of Salafism and Wahhabism (by region) Iran – Alleged Al-Qaeda ties Islamic Military Counter Terrorism Coalition Operation Cannonball Psychological warfare Religious terrorism Takfir wal-Hijra Videos and audio recordings of Osama bin Laden Violent extremism Publications Al Qaeda Handbook Management of Savagery Notes References Sources Bibliography Reviews Government reports Alt URL External links Al-Qaeda in Oxford Islamic Studies Online Al-Qaeda, Counter Extremism Project profile 17 de-classified documents captured during the Abbottabad raid and released to the Combating Terrorism Center Media Peter Taylor. (2007). "War on the West". Age of Terror, No. 4, series 1. BBC. Investigating Al-Qaeda, BBC News "Al Qaeda's New Front" from PBS Frontline, January 2005 Anti-communist organizations Anti-communist terrorism Antisemitism in Pakistan Antisemitism in the Arab world Antisemitism in the Middle East Anti-Shi'ism Anti-Zionist organizations Islam and antisemitism Islamic fundamentalism in the United States Islamic fundamentalism Islam-related controversies Organizations based in Asia designated as terrorist Organisations designated as terrorist by Australia Organizations designated as terrorist by Bahrain Organizations designated as terrorist by Canada Organisations designated as terrorist by India Organizations designated as terrorist by China Organisations designated as terrorist by Iran Organizations designated as terrorist by Israel Organisations designated as terrorist by Japan Organizations designated as terrorist by Kyrgyzstan Organisations designated as terrorist by Pakistan Organisations designated as terrorist by the United Kingdom Organizations designated as terrorist by Malaysia Organizations designated as terrorist by Paraguay Organizations designated as terrorist by Russia Organizations designated as terrorist by Saudi Arabia Organizations designated as terrorist by Turkey Organizations designated as terrorist by the United Arab Emirates Organizations designated as terrorist by the United States Organizations established in 1988 Organizations that oppose LGBT rights Pan-Islamism Al-Qaeda Salafi Jihadist groups Sunni Islamist groups Qutbist organisations Violence against LGBT people Violence against Shia Muslims Homophobia

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https://en.wikipedia.org/wiki/Arkansas

Arkansas

Arkansas ( ) is a landlocked state in the south-central region of the Southern United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, Texas to the southwest, and Oklahoma to the west. Its name is from the Osage language, a Dhegiha Siouan language, and referred to their relatives, the Quapaw people. The state's diverse geography ranges from the mountainous regions of the Ozark and Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 29th largest by area and the 34th most populous state, with a population of just over 3 million at the 2020 census. The capital and most populous city is Little Rock, in the central part of the state, a hub for transportation, business, culture, and government. The northwestern corner of the state, including the Fayetteville–Springdale–Rogers Metropolitan Area and Fort Smith metropolitan area, is a population, education, and economic center. The largest city in the state's eastern part is Jonesboro. The largest city in the state's southeastern part is Pine Bluff. Previously part of French Louisiana and the Louisiana Purchase, the Territory of Arkansas was admitted to the Union as the 25th state on June 15, 1836. Much of the Delta had been developed for cotton plantations, and landowners there largely depended on enslaved African Americans' labor. In 1861, Arkansas seceded from the United States and joined the Confederate States of America during the American Civil War. On returning to the Union in 1868, Arkansas continued to suffer economically, due to its overreliance on the large-scale plantation economy. Cotton remained the leading commodity crop, and the cotton market declined. Because farmers and businessmen did not diversify and there was little industrial investment, the state fell behind in economic opportunity. In the late 19th century, the state instituted various Jim Crow laws to disenfranchise and segregate the African-American population. White interests dominated Arkansas's politics, with disenfranchisement of African Americans and refusal to reapportion the legislature; only after the federal legislation passed were more African Americans able to vote. During the civil rights movement of the 1950s and 1960s, Arkansas and particularly Little Rock were major battlegrounds for efforts to integrate schools. Following World War II in the 1940s, Arkansas began to diversify its economy and see prosperity. During the 1960s, the state became the base of the Walmart corporation, the world's largest company by revenue, headquartered in Bentonville. In the 21st century, Arkansas's economy is based on service industries, aircraft, poultry, steel, and tourism, along with important commodity crops of cotton, soybeans and rice. Arkansas's culture is observable in museums, theaters, novels, television shows, restaurants, and athletic venues across the state. Notable people from the state include politician and educational advocate William Fulbright; former president Bill Clinton, who also served as the 40th and 42nd governor of Arkansas; general Wesley Clark, former NATO Supreme Allied Commander; Walmart founder and magnate Sam Walton; singer-songwriters Johnny Cash, Charlie Rich, Jimmy Driftwood, and Glen Campbell; actor-filmmaker Billy Bob Thornton; poet C. D. Wright; physicist William L. McMillan, a pioneer in superconductor research; poet laureate Maya Angelou; Douglas MacArthur; musician Al Green; actor Alan Ladd; basketball player Scottie Pippen; singer Ne-Yo; Chelsea Clinton; actress Sheryl Underwood; and author John Grisham. Etymology The name Arkansas initially applied to the Arkansas River. It derives from a French term, Arcansas, their plural term for their transliteration of akansa, an Algonquian term for the Quapaw people. These were a Dhegiha Siouan-speaking people who settled in Arkansas around the 13th century. Kansa is likely also the root term for Kansas, which was named after the related Kaw people. The name has been pronounced and spelled in a variety of ways. In 1881, the state legislature defined the official pronunciation of Arkansas as having the final "s" be silent (as it would be in French). A dispute had arisen between the state's two senators over the pronunciation issue. One favored (), the other (). In 2007, the state legislature passed a non-binding resolution declaring that the possessive form of the state's name is Arkansas's, which the state government has increasingly followed. History Early history Before European settlement of North America, Arkansas, was inhabited by indigenous peoples for thousands of years. The Caddo, Osage, and Quapaw peoples encountered European explorers. The first of these Europeans was Spanish explorer Hernando de Soto in 1541, who crossed the Mississippi and marched across central Arkansas and the Ozark Mountains. After finding nothing he considered of value and encountering native resistance the entire way, he and his men returned to the Mississippi River where de Soto fell ill. From his deathbed he ordered his men to massacre all the men of the nearby village of Anilco, who he feared had been plotting with a powerful polity down the Mississippi River, Quigualtam. His men obeyed and did not stop with the men, but were said to have massacred women and children as well. He died the following day in what is believed to be the vicinity of modern-day McArthur, Arkansas, in May 1542. His body was weighted down with sand and he was consigned to a watery grave in the Mississippi River under cover of darkness by his men. De Soto had attempted to deceive the native population into thinking he was an immortal deity, sun of the sun, in order to forestall attack by outraged Native Americans on his by then weakened and bedraggled army. In order to keep the ruse up, his men informed the locals that de Soto had ascended into the sky. His will at the time of his death listed "four Indian slaves, three horses and 700 hogs" which were auctioned off. The starving men, who had been living off maize stolen from natives, immediately started butchering the hogs and later, commanded by former aide-de-camp Moscoso, attempted an overland return to Mexico. They made it as far as Texas before running into territory too dry for maize farming and too thinly populated to sustain themselves by stealing food from the locals. The expedition promptly backtracked to Arkansas. After building a small fleet of boats they then headed down the Mississippi River and eventually on to Mexico by water. Later explorers included the French Jacques Marquette and Louis Jolliet in 1673, and Frenchmen Robert La Salle and Henri de Tonti in 1681. Tonti established Arkansas Post at a Quapaw village in 1686, making it the first European settlement in the territory. The early Spanish or French explorers of the state gave it its name, which is probably a phonetic spelling of the Illinois tribe's name for the Quapaw people, who lived downriver from them. The name Arkansas has been pronounced and spelled in a variety of fashions. The region was organized as the Territory of Arkansaw on July 4, 1819, with the territory admitted to the United States as the state of Arkansas on June 15, 1836. The name was historically , , and several other variants. Historically and modernly, the people of Arkansas call themselves either "Arkansans" or "Arkansawyers". In 1881, the Arkansas General Assembly passed Arkansas Code 1-4-105 (official text): Whereas, confusion of practice has arisen in the pronunciation of the name of our state and it is deemed important that the true pronunciation should be determined for use in oral official proceedings. And, whereas, the matter has been thoroughly investigated by the State Historical Society and the Eclectic Society of Little Rock, which have agreed upon the correct pronunciation as derived from history, and the early usage of the American immigrants. Be it therefore resolved by both houses of the General Assembly, that the only true pronunciation of the name of the state, in the opinion of this body, is that received by the French from the native Indians and committed to writing in the French word representing the sound. It should be pronounced in three (3) syllables, with the final "s" silent, the "a" in each syllable with the Italian sound, and the accent on the first and last syllables. The pronunciation with the accent on the second syllable with the sound of "a" in "man" and the sounding of the terminal "s" is an innovation to be discouraged. Citizens of the state of Kansas often pronounce the Arkansas River as , in a manner similar to the common pronunciation of the name of their state. Settlers, such as fur trappers, moved to Arkansas in the early 18th century. These people used Arkansas Post as a home base and entrepôt. During the colonial period, Arkansas changed hands between France and Spain following the Seven Years' War, although neither showed interest in the remote settlement of Arkansas Post. In April 1783, Arkansas saw its only battle of the American Revolutionary War, a brief siege of the post by British Captain James Colbert with the assistance of the Choctaw and Chickasaw. Purchase and statehood Napoleon Bonaparte sold French Louisiana to the United States in 1803, including all of Arkansas, in a transaction known today as the Louisiana Purchase. French soldiers remained as a garrison at Arkansas Post. Following the purchase, the balanced give-and-take relationship between settlers and Native Americans began to change all along the frontier, including in Arkansas. Following a controversy over allowing slavery in the territory, the Territory of Arkansas was organized on July 4, 1819. Gradual emancipation in Arkansas was struck down by one vote, the Speaker of the House Henry Clay, allowing Arkansas to organize as a slave territory. Slavery became a wedge issue in Arkansas, forming a geographic divide that remained for decades. Owners and operators of the cotton plantation economy in southeast Arkansas firmly supported slavery, as they perceived slave labor as the best or "only" economically viable method of harvesting their commodity crops. The "hill country" of northwest Arkansas was unable to grow cotton and relied on a cash-scarce, subsistence farming economy. As European Americans settled throughout the East Coast and into the Midwest, in the 1830s the United States government forced the removal of many Native American tribes to Arkansas and Indian Territory west of the Mississippi River. Additional Native American removals began in earnest during the territorial period, with final Quapaw removal complete by 1833 as they were pushed into Indian Territory. The capital was relocated from Arkansas Post to Little Rock in 1821, during the territorial period. When Arkansas applied for statehood, the slavery issue was again raised in Washington, D.C. Congress eventually approved the Arkansas Constitution after a 25-hour session, admitting Arkansas on June 15, 1836, as the 25th state and the 13th slave state, having a population of about 60,000. Arkansas struggled with taxation to support its new state government, a problem made worse by a state banking scandal and worse yet by the Panic of 1837. Civil War and Reconstruction In early antebellum Arkansas, the southeast Arkansas slave-based economy developed rapidly. On the eve of the American Civil War in 1860, enslaved African Americans numbered 111,115 people, just over 25% of the state's population. A plantation system based largely on cotton agriculture developed that, after the war, kept the state and region behind the nation for decades. The wealth developed among planters of southeast Arkansas caused a political rift between the northwest and southeast. Many politicians were elected to office from the Family, the Southern rights political force in antebellum Arkansas. Residents generally wanted to avoid a civil war. When the Gulf states seceded in early 1861, delegates to a convention called to determine whether Arkansas should secede referred the question back to the voters for a referendum to be held in August. Arkansas did not secede until Abraham Lincoln demanded Arkansas troops be sent to Fort Sumter to quell the rebellion there. On May 6, the members of the state convention, having been recalled by the convention president, voted to terminate Arkansas's membership in the Union and join the Confederate States of America. Arkansas held a very important position for the Rebels, maintaining control of the Mississippi River and surrounding Southern states. The bloody Battle of Wilson's Creek just across the border in Missouri shocked many Arkansans who thought the war would be a quick and decisive Southern victory. Battles early in the war took place in northwest Arkansas, including the Battle of Cane Hill, Battle of Pea Ridge, and Battle of Prairie Grove. Union general Samuel Curtis swept across the state to Helena in the Delta in 1862. Little Rock was captured the following year. The government shifted the state Confederate capital to Hot Springs, and then again to Washington from 1863 to 1865, for the remainder of the war. Throughout the state, guerrilla warfare ravaged the countryside and destroyed cities. Passion for the Confederate cause waned after implementation of programs such as the draft, high taxes, and martial law. Under the Military Reconstruction Act, Congress declared Arkansas restored to the Union in June 1868, after the Legislature accepted the 14th Amendment. The Republican-controlled reconstruction legislature established universal male suffrage (though temporarily disfranchising former Confederate Army officers, who were all Democrats), a public education system for blacks and whites, and passed general issues to improve the state and help more of the population. The State soon came under control of the Radical Republicans and Unionists, and led by Governor Powell Clayton, they presided over a time of great upheaval as Confederate sympathizers and the Ku Klux Klan fought the new developments, particularly voting rights for African Americans. End of Reconstruction and late 19th century In 1874, the Brooks-Baxter War, a political struggle between factions of the Republican Party shook Little Rock and the state governorship. It was settled only when President Ulysses S. Grant ordered Joseph Brooks to disperse his militant supporters. Following the Brooks-Baxter War, a new state constitution was ratified, re-enfranchising former Confederates and effectively bringing an end to Reconstruction. In 1881, the Arkansas state legislature enacted a bill that adopted an official pronunciation of the state's name, to combat a controversy then simmering. (See Law and Government below.) After Reconstruction, the state began to receive more immigrants and migrants. Chinese, Italian, and Syrian men were recruited for farm labor in the developing Delta region. None of these nationalities stayed long at farm labor; the Chinese especially, as they quickly became small merchants in towns around the Delta. Many Chinese became such successful merchants in small towns that they were able to educate their children at college. Construction of railroads enabled more farmers to get their products to market. It also brought new development into different parts of the state, including the Ozarks, where some areas were developed as resorts. In a few years at the end of the 19th century, for instance, Eureka Springs in Carroll County grew to 10,000 people, rapidly becoming a tourist destination and the fourth-largest city of the state. It featured newly constructed, elegant resort hotels and spas planned around its natural springs, considered to have healthful properties. The town's attractions included horse racing and other entertainment. It appealed to a wide variety of classes, becoming almost as popular as Hot Springs. Rise of the Jim Crow laws and early 20th century In the late 1880s, the worsening agricultural depression catalyzed Populist and third party movements, leading to interracial coalitions. Struggling to stay in power, in the 1890s the Democrats in Arkansas followed other Southern states in passing legislation and constitutional amendments that disfranchised blacks and poor whites. In 1891 state legislators passed a requirement for a literacy test, knowing it would exclude many blacks and whites. At the time, more than 25% of the population could neither read nor write. In 1892, they amended the state constitution to require a poll tax and more complex residency requirements, both of which adversely affected poor people and sharecroppers, forcing most blacks and many poor whites from voter rolls. By 1900 the Democratic Party expanded use of the white primary in county and state elections, further denying blacks a part in the political process. Only in the primary was there any competition among candidates, as Democrats held all the power. The state was a Democratic one-party state for decades, until after passage of the federal Civil Rights Act of 1964 and Voting Rights Act of 1965 to enforce constitutional rights. Between 1905 and 1911, Arkansas began to receive a small immigration of German, Slovak, and Scots-Irish from Europe. The German and Slovak peoples settled in the eastern part of the state known as the Prairie, and the Irish founded small communities in the southeast part of the state. The Germans were mostly Lutheran and the Slovaks were primarily Catholic. The Irish were mostly Protestant from Ulster, of Scots and Northern Borders descent. Some early 20th-century immigration included people from eastern Europe. Together, these immigrants made the Delta more diverse than the rest of the state. In the same years, some black migrants moved into the area because of opportunities to develop the bottomlands and own their own property. Black sharecroppers began to try to organize a farmers' union after World WarI. They were seeking better conditions of payment and accounting from white landowners of the area cotton plantations. Whites resisted any change and often tried to break up their meetings. On September 30, 1919, two white men, including a local deputy, tried to break up a meeting of black sharecroppers who were trying to organize a farmers' union. After a white deputy was killed in a confrontation with guards at the meeting, word spread to town and around the area. Hundreds of whites from Phillips and neighboring areas rushed to suppress the blacks, and started attacking blacks at large. Governor Charles Hillman Brough requested federal troops to stop what was called the Elaine massacre. White mobs spread throughout the county, killing an estimated 237 blacks before most of the violence was suppressed after October 1. Five whites also died in the incident. The governor accompanied the troops to the scene; President Woodrow Wilson had approved their use. The Great Mississippi Flood of 1927 flooded the areas along the Ouachita Rivers along with many other rivers. Based on the order of President Franklin D. Roosevelt given shortly after Imperial Japan's attack on Pearl Harbor, nearly 16,000 Japanese Americans were forcibly removed from the West Coast of the United States and incarcerated in two internment camps in the Arkansas Delta. The Rohwer Camp in Desha County operated from September 1942 to November 1945 and at its peak interned 8,475 prisoners. The Jerome War Relocation Center in Drew County operated from October 1942 to June 1944 and held about 8,000. Fall of segregation After the Supreme Court ruled segregation in public schools unconstitutional in Brown v. Board of Education of Topeka, Kansas (1954), some students worked to integrate schools in the state. The Little Rock Nine brought Arkansas to national attention in 1957 when the federal government had to intervene to protect African-American students trying to integrate a high school in the capital. Governor Orval Faubus had ordered the Arkansas National Guard to help segregationists prevent nine African-American students from enrolling at Little Rock's Central High School. After attempting three times to contact Faubus, President Dwight D. Eisenhower sent 1,000 troops from the active-duty 101st Airborne Division to escort and protect the African-American students as they entered school on September 25, 1957. In defiance of federal court orders to integrate, the governor and city of Little Rock decided to close the high schools for the remainder of the school year. By the fall of 1959, the Little Rock high schools were completely integrated. Geography Boundaries Arkansas borders Louisiana to the south, Texas to the southwest, Oklahoma to the west, Missouri to the north, and Tennessee and Mississippi to the east. The United States Census Bureau classifies Arkansas as a southern state, sub-categorized among the West South Central States. The Mississippi River forms most of its eastern border, except in Clay and Greene counties, where the St. Francis River forms the western boundary of the Missouri Bootheel, and in many places where the channel of the Mississippi has meandered (or been straightened by man) from its original 1836 course. Terrain Arkansas can generally be split into two halves, the highlands in the northwest and the lowlands of the southeast. The highlands are part of the Southern Interior Highlands, including The Ozarks and the Ouachita Mountains. The southern lowlands include the Gulf Coastal Plain and the Arkansas Delta. This split can yield to a regional division into northwest, southwest, northeast, southeast, and central Arkansas. These regions are broad and not defined along county lines. Arkansas has seven distinct natural regions: the Ozark Mountains, Ouachita Mountains, Arkansas River Valley, Gulf Coastal Plain, Crowley's Ridge, and the Arkansas Delta, with Central Arkansas sometimes included as a blend of multiple regions. The southeastern part of Arkansas along the Mississippi Alluvial Plain is sometimes called the Arkansas Delta. This region is a flat landscape of rich alluvial soils formed by repeated flooding of the adjacent Mississippi. Farther from the river, in the southeastern part of the state, the Grand Prairie has a more undulating landscape. Both are fertile agricultural areas. The Delta region is bisected by a geological formation known as Crowley's Ridge. A narrow band of rolling hills, Crowley's Ridge rises above the surrounding alluvial plain and underlies many of eastern Arkansas's major towns. Northwest Arkansas is part of the Ozark Plateau including the Ozark Mountains, to the south are the Ouachita Mountains, and these regions are divided by the Arkansas River; the southern and eastern parts of Arkansas are called the Lowlands. These mountain ranges are part of the U.S. Interior Highlands region, the only major mountainous region between the Rocky Mountains and the Appalachian Mountains. The state's highest point is Mount Magazine in the Ouachita Mountains, which is above sea level. Arkansas is home to many caves, such as Blanchard Springs Caverns. The State Archeologist has catalogued more than 43,000 Native American living, hunting and tool-making sites, many of them Pre-Columbian burial mounds and rock shelters. Crater of Diamonds State Park near Murfreesboro is the world's only diamond-bearing site accessible to the public for digging. Arkansas is home to a dozen Wilderness Areas totaling . These areas are set aside for outdoor recreation and are open to hunting, fishing, hiking, and primitive camping. No mechanized vehicles nor developed campgrounds are allowed in these areas. Hydrology Arkansas has many rivers, lakes, and reservoirs within or along its borders. Major tributaries to the Mississippi River include the Arkansas River, the White River, and the St. Francis River. The Arkansas is fed by the Mulberry and Fourche LaFave Rivers in the Arkansas River Valley, which is also home to Lake Dardanelle. The Buffalo, Little Red, Black and Cache Rivers are all tributaries to the White River, which also empties into the Mississippi. Bayou Bartholomew and the Saline, Little Missouri, and Caddo Rivers are all tributaries to the Ouachita River in south Arkansas, which empties into the Mississippi in Louisiana. The Red River briefly forms the state's boundary with Texas. Arkansas has few natural lakes and many reservoirs, such as Bull Shoals Lake, Lake Ouachita, Greers Ferry Lake, Millwood Lake, Beaver Lake, Norfork Lake, DeGray Lake, and Lake Conway. Flora and fauna Arkansas's temperate deciduous forest is divided into three broad ecoregions: the Ozark, Ouachita-Appalachian Forests, the Mississippi Alluvial and Southeast USA Coastal Plains, and the Southeastern USA Plains. The state is further divided into seven subregions: the Arkansas Valley, Boston Mountains, Mississippi Alluvial Plain, Mississippi Valley Loess Plain, Ozark Highlands, Ouachita Mountains, and the South Central Plains. A 2010 United States Forest Service survey determined of Arkansas's land is forestland, or 56% of the state's total area. Dominant species in Arkansas's forests include Quercus (oak), Carya (hickory), Pinus echinata (shortleaf pine) and Pinus taeda (loblolly pine). Arkansas's plant life varies with its climate and elevation. The pine belt stretching from the Arkansas delta to Texas consists of dense oak-hickory-pine growth. Lumbering and paper milling activity is active throughout the region. In eastern Arkansas, one can find Taxodium (cypress), Quercus nigra (water oaks), and hickories with their roots submerged in the Mississippi Valley bayous indicative of the deep south. Nearby Crowley's Ridge is the only home of the tulip tree in the state, and generally hosts more northeastern plant life such as the beech tree. The northwestern highlands are covered in an oak-hickory mixture, with Ozark white cedars, cornus (dogwoods), and Cercis canadensis (redbuds) also present. The higher peaks in the Arkansas River Valley play host to scores of ferns, including the Physematium scopulinum and Adiantum (maidenhair fern) on Mount Magazine. Arkansas wildlife is famous for the white-tailed deer, elk, and bald eagle. The white-tailed deer is the official state mammal. Climate Arkansas generally has a humid subtropical climate. While not bordering the Gulf of Mexico, Arkansas, is still close enough to the warm, large body of water for it to influence the weather in the state. Generally, Arkansas, has hot, humid summers and slightly drier, mild to cool winters. In Little Rock, the daily high temperatures average around with lows around in July. In January highs average around and lows around . In Siloam Springs in the northwest part of the state, the average high and low temperatures in July are and in January the average high and low are . Annual precipitation throughout the state averages between about ; it is somewhat wetter in the south and drier in the northern part of the state. Snowfall is infrequent but most common in the northern half of the state. The half of the state south of Little Rock is apter to see ice storms. Arkansas's record high is at Ozark on August 10, 1936; the record low is at Gravette, on February 13, 1905. Arkansas is known for extreme weather and frequent storms. A typical year brings thunderstorms, tornadoes, hail, snow and ice storms. Between both the Great Plains and the Gulf States, Arkansas, receives around 60 days of thunderstorms. Arkansas is located in Tornado Alley, and as a result, a few of the most destructive tornadoes in U.S. history have struck the state. While sufficiently far from the coast to avoid a direct hit from a hurricane, Arkansas can often get the remnants of a tropical system, which dumps tremendous amounts of rain in a short time and often spawns smaller tornadoes. Cities and towns Little Rock has been Arkansas's capital city since 1821 when it replaced Arkansas Post as the capital of the Territory of Arkansas. The state capitol was moved to Hot Springs and later Washington during the American Civil War when the Union armies threatened the city in 1862, and state government did not return to Little Rock until after the war ended. Today, the Little Rock–North Little Rock–Conway metropolitan area is the largest in the state, with a population of 724,385 in 2013. The Fayetteville–Springdale–Rogers Metropolitan Area is the second-largest metropolitan area in Arkansas, growing at the fastest rate due to the influx of businesses and the growth of the University of Arkansas and Walmart. The state has eight cities with populations above 50,000 (based on 2010 census). In descending order of size, they are Little Rock, Fort Smith, Fayetteville, Springdale, Jonesboro, North Little Rock, Conway, and Rogers. Of these, only Fort Smith and Jonesboro are outside the two largest metropolitan areas. Other cities in Arkansas include Pine Bluff, Crossett, Bryant, Lake Village, Hot Springs, Bentonville, Texarkana, Sherwood, Jacksonville, Russellville, Bella Vista, West Memphis, Paragould, Cabot, Searcy, Van Buren, El Dorado, Blytheville, Harrison, Dumas, Rison, Warren, and Mountain Home. Demographics Population The United States Census Bureau estimated that the population of Arkansas was 3,017,804 on July 1, 2019, a 3.49% increase since the 2010 United States census. At the 2020 U.S. census, Arkansas had a resident population of 3,011,524. From fewer than 15,000 in 1820, Arkansas's population grew to 52,240 during a special census in 1835, far exceeding the 40,000 required to apply for statehood. Following statehood in 1836, the population doubled each decade until the 1870 census conducted following the American Civil War. The state recorded growth in each successive decade, although it gradually slowed in the 20th century. It recorded population losses in the 1950 and 1960 censuses. This outmigration was a result of multiple factors, including farm mechanization, decreasing labor demand, and young educated people leaving the state due to a lack of non-farming industry in the state. Arkansas again began to grow, recording positive growth rates ever since and exceeding two million by the 1980 census. Arkansas's rate of change, age distributions, and gender distributions mirror national averages. Minority group data also approximates national averages. There are fewer people in Arkansas of Hispanic or Latino origin than the national average. The center of population of Arkansas for 2000 was located in Perry County, near Nogal. According to HUD's 2022 Annual Homeless Assessment Report, there were an estimated 2,459 homeless people in Arkansas. Race and ethnicity Per the 2019 census estimates, Arkansas was 72.0% non-Hispanic white, 15.4% Black or African American, 0.5% American Indian and Alaska Native, 1.5% Asian, 0.4% Native Hawaiian or other Pacific Islander, 0.1% some other race, 2.4% two or more races, and 7.7% Hispanic or Latin American of any race. In 2011, the state was 80.1% white (74.2% non-Hispanic white), 15.6% Black or African American, 0.9% American Indian and Alaska Native, 1.3% Asian, and 1.8% from two or more races. Hispanics or Latinos of any race made up 6.6% of the population. As of 2011, 39.0% of Arkansas's population younger than age1 were minorities. European Americans have a strong presence in the northwestern Ozarks and the central part of the state. African Americans live mainly in the southern and eastern parts of the state. Arkansans of Irish, English and German ancestry are mostly found in the far northwestern Ozarks near the Missouri border. Ancestors of the Irish in the Ozarks were chiefly Scots-Irish, Protestants from Northern Ireland, the Scottish lowlands and northern England part of the largest group of immigrants from Great Britain and Ireland before the American Revolution. English and Scots-Irish immigrants settled throughout the back country of the South and in the more mountainous areas. Americans of English stock are found throughout the state. A 2010 survey of the principal ancestries of Arkansas's residents revealed the following: 15.5% African American, 12.3% Irish, 11.5% German, 11.0% American, 10.1% English, 4.7% Mexican, 2.1% French, 1.7% Scottish, 1.7% Dutch, 1.6% Italian, and 1.4% Scots-Irish. Most people identifying as "American" are of English descent or Scots-Irish descent. Their families have been in the state so long, in many cases since before statehood, that they choose to identify simply as having American ancestry or do not in fact know their ancestry. Their ancestry primarily goes back to the original 13 colonies and for this reason many of them today simply claim American ancestry. Many people who identify as of Irish descent are in fact of Scots-Irish descent. According to the American Immigration Council, in 2015, the top countries of origin for Arkansas' immigrants were Mexico, El Salvador, India, Vietnam, and Guatemala. According to the 2006–2008 American Community Survey, 93.8% of Arkansas's population (over the age of five) spoke only English at home. About 4.5% of the state's population spoke Spanish at home. About 0.7% of the state's population spoke another Indo-European language. About 0.8% of the state's population spoke an Asian language, and 0.2% spoke other languages. Religion Like most other Southern states, Arkansas is part of the Bible Belt and predominantly Protestant. The largest denominations by number of adherents in 2010 were the Southern Baptist Convention with 661,382; the United Methodist Church with 158,574; non-denominational Evangelical Protestants with 129,638; the Catholic Church with 122,662; and the Church of Jesus Christ of Latter-day Saints with 31,254. Some residents of the state have other religions, such as Islam, Judaism, Wicca/Paganism, Hinduism, Buddhism, and some have no religious affiliation. In 2014, the Pew Research Center determined that 79% of the population was Christian, dominated by evangelicals in the Southern Baptist and independent Baptist churches. In contrast with many other states, the Catholic Church as of 2014 was not the largest Christian denomination in Arkansas. Of the unaffiliated population, 2% were atheist in 2014. By 2020, the Public Religion Research Institute determined 71% of the population was Christian. Arkansas continued to be dominated by evangelicals, followed by mainline Protestants and historically black or African American churches. Economy Once a state with a cashless society in the uplands and plantation agriculture in the lowlands, Arkansas's economy has evolved and diversified. The state's gross domestic product (GDP) was $119billion in 2015. Six Fortune 500 companies are based in Arkansas, including the world's #1 retailer, Walmart; Tyson Foods, J.B. Hunt, Dillard's, Murphy USA, and Windstream are also headquartered in the state. The per capita personal income in 2015 was $39,107, ranking 45th in the nation. The median household income from 2011 to 2015 was $41,371, ranking 49th in the nation. The state's agriculture outputs are poultry and eggs, soybeans, sorghum, cattle, cotton, rice, hogs, and milk. Its industrial outputs are food processing, electric equipment, fabricated metal products, machinery, and paper products. Arkansas's mines produce natural gas, oil, crushed stone, bromine, and vanadium. According to CNBC, Arkansas is the 20th-best state for business, with the 2nd-lowest cost of doing business, 5th-lowest cost of living, 11th-best workforce, 20th-best economic climate, 28th-best-educated workforce, 31st-best infrastructure and the 32nd-friendliest regulatory environment. Arkansas gained 12 spots in the best state for business rankings since 2011. As of 2014, it was the most affordable state to live in. As of June 2021, the state's unemployment rate was 4.4%; the preliminary rate for November 2021 is 3.4%. Industry and commerce Arkansas's earliest industries were fur trading and agriculture, with development of cotton plantations in the areas near the Mississippi River. They were dependent on slave labor through the American Civil War. Today only about three percent of the population are employed in the agricultural sector, it remains a major part of the state's economy, ranking 13th in the nation in the value of products sold. Arkansas is the nation's largest producer of rice, broilers, and turkeys, and ranks in the top three for cotton, pullets, and aquaculture (catfish). Forestry remains strong in the Arkansas Timberlands, and the state ranks fourth nationally and first in the South in softwood lumber production. Automobile parts manufacturers have opened factories in eastern Arkansas to support auto plants in other states. Bauxite was formerly a large part of the state's economy, mined mostly around Saline County. Tourism is also very important to the Arkansas economy; the official state nickname "The Natural State" was created for state tourism advertising in the 1970s, and is still used to this day. The state maintains 52 state parks and the National Park Service maintains seven properties in Arkansas. The completion of the William Jefferson Clinton Presidential Library in Little Rock has drawn many visitors to the city and revitalized the nearby River Market District. Many cities also hold festivals, which draw tourists to Arkansas culture, such as The Bradley County Pink Tomato Festival in Warren, King Biscuit Blues Festival, Ozark Folk Festival, Toad Suck Daze, and Tontitown Grape Festival. Transportation Transportation in Arkansas is overseen by the Arkansas Department of Transportation (ArDOT), headquartered in Little Rock. Several main corridors pass through Little Rock, including Interstate30 (I-30) and I-40 (the nation's 3rd-busiest trucking corridor). Arkansas first designated a state highway system in 1924, and first numbered its roads in 1926. Arkansas had one of the first paved roads, the Dollarway Road, and one of the first members of the Interstate Highway System. The state maintains a large system of state highways today, in addition to eight Interstates and 20 U.S. Routes. In northeast Arkansas, I-55 travels north from Memphis to Missouri, with a new spur to Jonesboro (I-555). Northwest Arkansas is served by the segment of I-49 from Fort Smith to the beginning of the Bella Vista Bypass. This segment of I-49 currently follows mostly the same route as the former section of I-540 that extended north of I-40. The state also has the 13th largest state highway system in the nation. Arkansas is served by of railroad track divided among twenty-six railroad companies including three Class I railroads. Freight railroads are concentrated in southeast Arkansas to serve the industries in the region. The Texas Eagle, an Amtrak passenger train, serves five stations in the state Walnut Ridge, Little Rock, Malvern, Arkadelphia, and Texarkana. Arkansas also benefits from the use of its rivers for commerce. The Mississippi River and Arkansas River are both major rivers. The United States Army Corps of Engineers maintains the McClellan-Kerr Arkansas River Navigation System, allowing barge traffic up the Arkansas River to the Port of Catoosa in Tulsa, Oklahoma. There are four airports with commercial service: Clinton National Airport (formerly Little Rock National Airport or Adams Field), Northwest Arkansas Regional Airport, Fort Smith Regional Airport, and Texarkana Regional Airport, with dozens of smaller airports in the state. Intercity bus services across the state are provided by Flixbus, Greyhound Lines, and Jefferson Lines. Public transit and community transport services for the elderly or those with developmental disabilities are provided by agencies such as the Central Arkansas Transit Authority and the Ozark Regional Transit, organizations that are part of the Arkansas Transit Association. Government As with the federal government of the United States, political power in Arkansas is divided into three branches: executive, legislative, and judicial. Each officer's term is four years long. Office holders are term-limited to two full terms plus any partial terms before the first full term. Executive The governor of Arkansas is Sarah Huckabee Sanders, a Republican, who was inaugurated on January 10, 2023. The six other elected executive positions in Arkansas are lieutenant governor, secretary of state, attorney general, treasurer, auditor, and land commissioner. The governor also appoints the leaders of various state boards, committees, and departments. Arkansas governors served two-year terms until a referendum lengthened the term to four years, effective with the 1986 election. Individuals elected to these offices are limited to a lifetime total of two four-year terms per office. In Arkansas, the lieutenant governor is elected separately from the governor and thus can be from a different political party. Legislative The Arkansas General Assembly is the state's bicameral bodies of legislators, composed of the Senate and House of Representatives. The Senate contains 35 members from districts of approximately equal population. These districts are redrawn decennially with each US census, and in election years ending in "2", the entire body is put up for reelection. Following the election, half of the seats are designated as two-year seats and are up for reelection again in two years, these "half-terms" do not count against a legislator's term limits. The remaining half serve a full four-year term. This staggers elections such that half the body is up for reelection every two years and allows for complete body turnover following redistricting. Arkansas voters elected a 21–14 Republican majority in the Senate in 2012. Arkansas House members can serve a maximum of three two-year terms. House districts are redistricted by the Arkansas Board of Apportionment. In the 2012 elections, Republicans gained a 51–49 majority in the House of Representatives. The Republican Party majority status in the Arkansas State House of Representatives after the 2012 elections, is the party's first since 1874. Arkansas was the last state of the old Confederacy to not have Republican control of either chamber of its house since the American Civil War. Following the term limits changes, studies have shown that lobbyists have become less influential in state politics. Legislative staff, not subject to term limits, have acquired additional power and influence due to the high rate of elected official turnover. Judicial Arkansas's judicial branch has five court systems: Arkansas Supreme Court, Arkansas Court of Appeals, Circuit Courts, District Courts and City Courts. Most cases begin in district court, which is subdivided into state district court and local district court. State district courts exercise district-wide jurisdiction over the districts created by the General Assembly, and local district courts are presided over by part-time judges who may privately practice law. 25 state district court judges preside over 15 districts, with more districts created in 2013 and 2017. There are 28 judicial circuits of Circuit Court, with each contains five subdivisions: criminal, civil, probate, domestic relations, and juvenile court. The jurisdiction of the Arkansas Court of Appeals is determined by the Arkansas Supreme Court, and there is no right of appeal from the Court of Appeals to the high court. The Arkansas Supreme Court can review Court of Appeals cases upon application by either a party to the litigation, upon request by the Court of Appeals, or if the Arkansas Supreme Court feels the case should have been initially assigned to it. The twelve judges of the Arkansas Court of Appeals are elected from judicial districts to renewable six-year terms. The Arkansas Supreme Court is the court of last resort in the state, composed of seven justices elected to eight-year terms. Established by the Arkansas Constitution in 1836, the court's decisions can be appealed to only the Supreme Court of the United States. Federal Both Arkansas's U.S. senators, John Boozman and Tom Cotton, are Republicans. The state has four seats in U.S. House of Representatives. All four seats are held by Republicans: Rick Crawford (1st district), French Hill (2nd district), Steve Womack (3rd district), and Bruce Westerman (4th district). Politics Arkansas governor Bill Clinton brought national attention to the state with a long speech at the 1988 Democratic National Convention endorsing Michael Dukakis. Some journalists suggested the speech was a threat to his ambitions; Clinton defined it "a comedy of error, just one of those fluky things". He won the Democratic nomination for president in 1992. Presenting himself as a "New Democrat" and using incumbent George H. W. Bush's broken promise against him, Clinton won the 1992 presidential election with 43.0% of the vote to Bush's 37.5% and independent billionaire Ross Perot's 18.9%. Most Republican strength traditionally lay mainly in the northwestern part of the state, particularly Fort Smith and Bentonville, as well as North Central Arkansas around the Mountain Home area. In the latter area, Republicans have been known to get 90% or more of the vote, while the rest of the state was more Democratic. After 2010, Republican strength expanded further to the Northeast and Southwest and into the Little Rock suburbs. The Democrats are mostly concentrated to central Little Rock, the Mississippi Delta, the Pine Bluff area, and the areas around the southern border with Louisiana. Arkansas has elected only three Republicans to the U.S. Senate since Reconstruction: Tim Hutchinson, who was defeated after one term by Mark Pryor; John Boozman, who defeated incumbent Blanche Lincoln; and Tom Cotton, who defeated Pryor in 2014. Before 2013, the General Assembly had not been controlled by the Republican Party since Reconstruction, with the GOP holding a 51-seat majority in the state House and a 21-seat (of 35) in the state Senate following victories in 2012. Arkansas was one of just three states among the states of the former Confederacy that sent two Democrats to the U.S. Senate (the others being Florida and Virginia) for any period during the first decade of the 21st century. In 2010, Republicans captured three of the state's four seats in the U.S. House of Representatives. In 2012, they won election to all four House seats. Arkansas held the distinction of having a U.S. House delegation composed entirely of military veterans (Rick Crawford, Army; Tim Griffin, Army Reserve; Steve Womack, Army National Guard; Tom Cotton, Army). When Pryor was defeated in 2014, the entire congressional delegation was in GOP hands for the first time since Reconstruction. Reflecting the state's large evangelical population, Arkansas has a strong social conservative bent. In the aftermath of the landmark Supreme Court decision Dobbs v. Jackson Women's Health Organization, Arkansas became one of nine states where abortion is banned. Under the Arkansas Constitution, Arkansas is a right to work state. Its voters passed a ban on same-sex marriage in 2004, with 75% voting yes, although that ban has been inactive since the Supreme Court protected same-sex marriage in Obergefell v. Hodges. Arkansas retains the death penalty. Authorized methods of execution include the Electric chair. Military The Strategic Air Command facility of Little Rock Air Force Base was one of eighteen silos in the command of the 308th Strategic Missile Wing (308th SMW), specifically one of the nine silos within its 374th Strategic Missile Squadron (374th SMS). The squadron was responsible for Launch Complex 374–7, site of the 1980 explosion of a TitanII Intercontinental Ballistic Missile (ICBM) in Damascus, Arkansas. Taxation Taxes are collected by the Arkansas Department of Finance and Administration. Health As of 2012, Arkansas, as with many Southern states, has a high incidence of premature death, infant mortality, cardiovascular deaths, and occupational fatalities compared to the rest of the United States. The state is tied for 43rd with New York in percentage of adults who regularly exercise. Arkansas is usually ranked as one of the least healthy states due to high obesity, smoking, and sedentary lifestyle rates, but according to a Gallup poll, Arkansas made the most immediate progress in reducing its number of uninsured residents after the Affordable Care Act passed. The percentage of uninsured in Arkansas dropped from 22.5 in 2013 to 12.4 in August 2014. The Arkansas Clean Indoor Air Act, a statewide smoking ban excluding bars and some restaurants, went into effect in 2006. Healthcare in Arkansas is provided by a network of hospitals as members of the Arkansas Hospital Association. Major institutions with multiple branches include Baptist Health, Community Health Systems, and HealthSouth. The University of Arkansas for Medical Sciences (UAMS) in Little Rock operates the UAMS Medical Center, a teaching hospital ranked as high performing nationally in cancer and nephrology. The pediatric division of UAMS Medical Center is known as Arkansas Children's Hospital, nationally ranked in pediatric cardiology and heart surgery. Together, these two institutions are the state's only Level I trauma centers. Education Arkansas has 1,064 state-funded kindergartens, elementary, junior and senior high schools. The state supports a network of public universities and colleges, including two major university systems: Arkansas State University System and University of Arkansas System. The University of Arkansas, flagship campus of the University of Arkansas System in Fayetteville was ranked #63 among public schools in the nation by U.S. News & World Report. Other public institutions include University of Arkansas at Pine Bluff, Arkansas Tech University, Henderson State University, Southern Arkansas University, and University of Central Arkansas across the state. It is also home to 11 private colleges and universities including Hendrix College, one of the nation's top 100 liberal arts colleges, according to U.S. News & World Report. In the 1920s the state required all children to attend public schools. The school year was set at 131 days, although some areas were unable to meet that requirement. Generally prohibited in the West at large, school corporal punishment is not unusual in Arkansas, with 20,083 public school students paddled at least one time, according to government data for the 2011–12 school year. The rate of corporal punishment in public schools is higher only in Mississippi. Media As of 2010 many Arkansas local newspapers are owned by WEHCO Media, Alabama-based Lancaster Management, Kentucky-based Paxton Media Group, Missouri-based Rust Communications, Nevada-based Stephens Media, and New York-based GateHouse Media. Culture The culture of Arkansas includes distinct cuisine, dialect, and traditional festivals. Sports are also very important to the culture, including football, baseball, basketball, hunting, and fishing. Perhaps the best-known aspect of Arkansas's culture is the stereotype that its citizens are shiftless hillbillies. The reputation began when early explorers characterized the state as a savage wilderness full of outlaws and thieves. The most enduring icon of Arkansas's hillbilly reputation is The Arkansas Traveller, a painted depiction of a folk tale from the 1840s. Though intended to represent the divide between rich southeastern plantation Arkansas planters and the poor northwestern hill country, the meaning was twisted to represent a Northerner lost in the Ozarks on a white horse asking a backwoods Arkansan for directions. The state also suffers from the racial stigma common to former Confederate states, with historical events such as the Little Rock Nine adding to Arkansas's enduring image. Art and history museums display pieces of cultural value for Arkansans and tourists to enjoy. Crystal Bridges Museum of American Art in Bentonville was visited by 604,000 people in 2012, its first year. The museum includes walking trails and educational opportunities in addition to displaying over 450 works covering five centuries of American art. Several historic town sites have been restored as Arkansas state parks, including Historic Washington State Park, Powhatan Historic State Park, and Davidsonville Historic State Park. Arkansas features a variety of native music across the state, ranging from the blues heritage of West Memphis, Pine Bluff, Helena–West Helena to rockabilly, bluegrass, and folk music from the Ozarks. Festivals such as the King Biscuit Blues Festival and Bikes, Blues, and BBQ pay homage to the history of blues in the state. The Ozark Folk Festival in Mountain View is a celebration of Ozark culture and often features folk and bluegrass musicians. Literature set in Arkansas such as I Know Why the Caged Bird Sings by Maya Angelou and A Painted House by John Grisham describe the culture at various time periods. Sports and recreation Sports have become an integral part of the culture of Arkansas, and her residents enjoy participating in and spectating various events throughout the year. Team sports and especially collegiate football are important to Arkansans. College football in Arkansas began from humble beginnings, when the University of Arkansas first fielded a team in 1894. Over the years, many Arkansans have looked to Arkansas Razorbacks football as the public image of the state. Although the University of Arkansas is based in Fayetteville, the Razorbacks have always played at least one game per season at War Memorial Stadium in Little Rock in an effort to keep fan support in central and south Arkansas. Arkansas State University became the second NCAA Division I Football Bowl Subdivision (FBS) (then known as Division I-A) team in the state in 1992 after playing in lower divisions for nearly two decades. The two schools have never played each other, due to the University of Arkansas's policy of not playing intrastate games. Two other campuses of the University of Arkansas System are Division I members. The University of Arkansas at Pine Bluff is a member of the Southwestern Athletic Conference, a league whose members all play football in the second-level Football Championship Subdivision (FCS). The University of Arkansas at Little Rock, known for sports purposes as Little Rock, joined the Ohio Valley Conference in 2022 after playing in the Sun Belt Conference; unlike many other OVC members, it does not field a football program. The state's other DivisionI member is the University of Central Arkansas (UCA), which joined the ASUN Conference in 2021 after leaving the FCS Southland Conference. Because the ASUN does not plan to start FCS football competition until at least 2022, UCA football is competing in the Western Athletic Conference as part of a formal football partnership between the two leagues. Seven of Arkansas's smaller colleges play in NCAA Division II, with six in the Great American Conference and one in the Lone Star Conference. Two other small Arkansas colleges compete in NCAA Division III, in which athletic scholarships are prohibited. High school football also began to grow in Arkansas in the early 20th century. Baseball runs deep in Arkansas and was popular before the state hosted Major League Baseball (MLB) spring training in Hot Springs from 1886 to the 1920s. Two minor league teams are based in the state. The Arkansas Travelers play at Dickey–Stephens Park in North Little Rock, and the Northwest Arkansas Naturals play in Arvest Ballpark in Springdale. Both teams compete in Double-A Central. Hunting continues in the state. The state created the Arkansas Game and Fish Commission in 1915 to regulate hunting. Today a significant portion of Arkansas's population participates in hunting duck in the Mississippi flyway and deer across the state. Ducks Unlimited has called Stuttgart, Arkansas, "the epicenter of the duck universe". Millions of acres of public land are available for both bow and modern gun hunters. Fishing has always been popular in Arkansas, and the sport and the state have benefited from the creation of reservoirs across the state. Following the completion of Norfork Dam, the Norfork Tailwater and the White River have become a destination for trout fishers. Several smaller retirement communities such as Bull Shoals, Hot Springs Village, and Fairfield Bay have flourished due to their position on a fishing lake. The National Park Service has preserved the Buffalo National River in its natural state and fly fishers visit it annually. Attractions Arkansas is home to many areas protected by the National Park System. These include: Arkansas Post National Memorial at Gillett Blanchard Springs Caverns Buffalo National River Fort Smith National Historic Site Hot Springs National Park Little Rock Central High School National Historic Site Pea Ridge National Military Park President William Jefferson Clinton Birthplace Home National Historic Site Arkansas State Capitol Building List of Arkansas state parks See also Index of Arkansas-related articles Outline of Arkansas Spanish Empire History of Louisiana USS Arkansas, 5 ships Notes References Bibliography Further reading Blair, Diane D. & Jay Barth Arkansas Politics & Government: Do the People Rule? (2005) Deblack, Thomas A. With Fire and Sword: Arkansas, 1861–1874 (2003) Donovan, Timothy P. and Willard B. Gatewood Jr., eds. The Governors of Arkansas (1981) Dougan, Michael B. Confederate Arkansas (1982), Duvall, Leland. ed., Arkansas: Colony and State (1973) Hamilton, Peter Joseph. The Reconstruction Period (1906), full length history of era; Dunning School approach; 570 pp; ch 13 on Arkansas Hanson, Gerald T. and Carl H. Moneyhon. Historical Atlas of Arkansas (1992) Key, V. O. Southern Politics (1949) Kirk, John A., Redefining the Color Line: Black Activism in Little Rock, Arkansas, 1940–1970 (2002). McMath, Sidney S. Promises Kept (2003) Moore, Waddy W. ed., Arkansas in the Gilded Age, 1874–1900 (1976). Peirce, Neal R. The Deep South States of America: People, Politics, and Power in the Seven Deep South States (1974). Thompson, Brock. The Un-Natural State: Arkansas and the Queer South (2010) Thompson, George H. Arkansas and Reconstruction (1976) Whayne, Jeannie M. Arkansas Biography: A Collection of Notable Lives (2000) White, Lonnie J. Politics on the Southwestern Frontier: Arkansas Territory, 1819–1836 (1964) Williams, C. Fred. ed. A Documentary History Of Arkansas (2005) External links Arkansas.gov—Official State Website Arkansas State Facts from USDA Official State tourism website Encyclopedia of Arkansas Energy & Environmental Data for Arkansas U.S. Census Bureau 2000 Census of Population and Housing for Arkansas, U.S. Census Bureau USGS real-time, geographic, and other scientific resources of Arkansas Arkansas Summer Camps Arkansas Shakespeare Theatre Arkansas State Code (the state statutes of Arkansas) Arkansas State Databases—Annotated list of searchable databases produced by Arkansas state agencies and compiled by the Government Documents Roundtable of the American Library Association. 1836 establishments in the United States Contiguous United States South Central United States Southern United States States and territories established in 1836 States of the Confederate States of America States of the United States

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https://en.wikipedia.org/wiki/Airline

Airline

An airline is a company that provides air transport services for traveling passengers and/or freight. Airlines use aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements, in which they both offer and operate the same flight. Generally, airline companies are recognized with an air operating certificate or license issued by a governmental aviation body. Airlines may be scheduled or charter operators. The first airline was the German airship company DELAG, founded on November 16, 1909. The four oldest non-airship airlines that still exist are the Netherlands' KLM (1919), Colombia's Avianca (1919), Australia's Qantas (1920) and the Mexican Mexicana de Aviación (1921). Airline ownership has seen a shift from mostly personal ownership until the 1930s to government-ownership of major airlines from the 1940s to 1980s and back to large-scale privatization following the mid-1980s. Since the 1980s, there has been a trend of major airline mergers and the formation of airline alliances. The largest alliances are Star Alliance, SkyTeam and Oneworld. Airline alliances coordinate their passenger service programs (such as lounges and frequent-flyer programs), offer special interline tickets and often engage in extensive codesharing (sometimes systemwide). History The first airlines DELAG, Deutsche Luftschiffahrts-Aktiengesellschaft I was the world's first airline. It was founded on November 16, 1909, with government assistance, and operated airships manufactured by The Zeppelin Corporation. Its headquarters were in Frankfurt. The first fixed-wing scheduled airline was started on January 1, 1914. The flight was piloted by Tony Jannus and flew from St. Petersburg, Florida, to Tampa, Florida, operated by the St. Petersburg–Tampa Airboat Line. Europe Beginnings The earliest fixed wing airline in Europe was Aircraft Transport and Travel, formed by George Holt Thomas in 1916; via a series of takeovers and mergers, this company is an ancestor of modern-day British Airways. Using a fleet of former military Airco DH.4A biplanes that had been modified to carry two passengers in the fuselage, it operated relief flights between Folkestone and Ghent, Belgium. On July 15 , 1919, the company flew a proving flight across the English Channel, despite a lack of support from the British government. Flown by Lt. H Shaw in an Airco DH.9 between RAF Hendon and Paris – Le Bourget Airport, the flight took 2 hours and 30 minutes at £21 per passenger. On August 25, 1919, the company used DH.16s to pioneer a regular service from Hounslow Heath Aerodrome to Paris's Le Bourget, the first regular international service in the world. The airline soon gained a reputation for reliability, despite problems with bad weather, and began to attract European competition. In November 1919, it won the first British civil airmail contract. Six Royal Air Force Airco DH.9A aircraft were lent to the company, to operate the airmail service between Hawkinge and Cologne. In 1920, they were returned to the Royal Air Force. Other British competitors were quick to follow – Handley Page Transport was established in 1919 and used the company's converted wartime Type O/400 bombers with a capacity for 12 passengers, to run a London-Paris passenger service. The first French airline was Société des lignes Latécoère, later known as Aéropostale, which started its first service in late 1918 to Spain. The Société Générale des Transports Aériens was created in late 1919, by the Farman brothers and the Farman F.60 Goliath plane flew scheduled services from Toussus-le-Noble to Kenley, near Croydon, England. Another early French airline was the Compagnie des Messageries Aériennes, established in 1919 by Louis-Charles Breguet, offering a mail and freight service between Le Bourget Airport, Paris and Lesquin Airport, Lille. The first German airline to use heavier than air aircraft was Deutsche Luft-Reederei established in 1917 which started operating in February 1919. In its first year, the D.L.R. operated regularly scheduled flights on routes with a combined length of nearly 1000 miles. By 1921 the D.L.R. network was more than 3000 km (1865 miles) long, and included destinations in the Netherlands, Scandinavia and the Baltic Republics. Another important German airline was Junkers Luftverkehr, which began operations in 1921. It was a division of the aircraft manufacturer Junkers, which became a separate company in 1924. It operated joint-venture airlines in Austria, Denmark, Estonia, Finland, Hungary, Latvia, Norway, Poland, Sweden and Switzerland. The Dutch airline KLM made its first flight in 1920, and is the oldest continuously operating airline in the world. Established by aviator Albert Plesman, it was immediately awarded a "Royal" predicate from Queen Wilhelmina. Its first flight was from Croydon Airport, London to Amsterdam, using a leased Aircraft Transport and Travel DH-16, and carrying two British journalists and a number of newspapers. In 1921, KLM started scheduled services. In Finland, the charter establishing Aero O/Y (now Finnair) was signed in the city of Helsinki on 12 September 1923. Junkers F.13 D-335 became the first aircraft of the company, when Aero took delivery of it on 14 March 1924. The first flight was between Helsinki and Tallinn, capital of Estonia, and it took place on 20 March 1924, one week later. In the Soviet Union, the Chief Administration of the Civil Air Fleet was established in 1921. One of its first acts was to help found Deutsch-Russische Luftverkehrs A.G. (Deruluft), a German-Russian joint venture to provide air transport from Russia to the West. Domestic air service began around the same time, when Dobrolyot started operations on 15 July 1923 between Moscow and Nizhni Novgorod. Since 1932 all operations had been carried under the name Aeroflot. Early European airlines tended to favor comfort – the passenger cabins were often spacious with luxurious interiors – over speed and efficiency. The relatively basic navigational capabilities of pilots at the time also meant that delays due to the weather were commonplace. Rationalization By the early 1920s, small airlines were struggling to compete, and there was a movement towards increased rationalization and consolidation. In 1924, Imperial Airways was formed from the merger of Instone Air Line Company, British Marine Air Navigation, Daimler Airway and Handley Page Transport, to allow British airlines to compete with stiff competition from French and German airlines that were enjoying heavy government subsidies. The airline was a pioneer in surveying and opening up air routes across the world to serve far-flung parts of the British Empire and to enhance trade and integration. The first new airliner ordered by Imperial Airways, was the Handley Page W8f City of Washington, delivered on 3 November 1924. In the first year of operation the company carried 11,395 passengers and 212,380 letters. In April 1925, the film The Lost World became the first film to be screened for passengers on a scheduled airliner flight when it was shown on the London-Paris route. Two French airlines also merged to form Air Union on 1 January 1923. This later merged with four other French airlines to become Air France, the country's flagship carrier to this day, on 17 May 1933. Germany's Deutsche Lufthansa was created in 1926 by merger of two airlines, one of them Junkers Luftverkehr. Lufthansa, due to the Junkers heritage and unlike most other airlines at the time, became a major investor in airlines outside of Europe, providing capital to Varig and Avianca. German airliners built by Junkers, Dornier, and Fokker were among the most advanced in the world at the time. Expansion In 1926, Alan Cobham surveyed a flight route from the UK to Cape Town, South Africa, following this up with another proving flight to Melbourne, Australia. Other routes to British India and the Far East were also charted and demonstrated at this time. Regular services to Cairo and Basra began in 1927 and were extended to Karachi in 1929. The London-Australia service was inaugurated in 1932 with the Handley Page HP 42 airliners. Further services were opened up to Calcutta, Rangoon, Singapore, Brisbane and Hong Kong passengers departed London on 14 March 1936 following the establishment of a branch from Penang to Hong Kong. France began an air mail service to Morocco in 1919 that was bought out in 1927, renamed Aéropostale, and injected with capital to become a major international carrier. In 1933, Aéropostale went bankrupt, was nationalized and merged into Air France. Although Germany lacked colonies, it also began expanding its services globally. In 1931, the airship Graf Zeppelin began offering regular scheduled passenger service between Germany and South America, usually every two weeks, which continued until 1937. In 1936, the airship Hindenburg entered passenger service and successfully crossed the Atlantic 36 times before crashing at Lakehurst, New Jersey, on 6 May 1937. In 1938, a weekly air service from Berlin to Kabul, Afghanistan, started operating. From February 1934 until World War II began in 1939, Deutsche Lufthansa operated an airmail service from Stuttgart, Germany via Spain, the Canary Islands and West Africa to Natal in Brazil. This was the first time an airline flew across an ocean. By the end of the 1930s Aeroflot had become the world's largest airline, employing more than 4,000 pilots and 60,000 other service personnel and operating around 3,000 aircraft (of which 75% were considered obsolete by its own standards). During the Soviet era Aeroflot was synonymous with Russian civil aviation, as it was the only air carrier. It became the first airline in the world to operate sustained regular jet services on 15 September 1956 with the Tupolev Tu-104. Deregulation Deregulation of the European Union airspace in the early 1990s has had substantial effect on the structure of the industry there. The shift towards 'budget' airlines on shorter routes has been significant. Airlines such as EasyJet and Ryanair have often grown at the expense of the traditional national airlines. There has also been a trend for these national airlines themselves to be privatized such as has occurred for Aer Lingus and British Airways. Other national airlines, including Italy's Alitalia, suffered – particularly with the rapid increase of oil prices in early 2008. Finnair, the largest airline of Finland, had no fatal or hull-loss accidents since 1963, and is recognized for its safety. United States Early development Tony Jannus conducted the United States' first scheduled commercial airline flight on January 1, 1914 for the St. Petersburg-Tampa Airboat Line. The 23-minute flight traveled between St. Petersburg, Florida and Tampa, Florida, passing some above Tampa Bay in Jannus' Benoist XIV wood and muslin biplane flying boat. His passenger was a former mayor of St. Petersburg, who paid $400 for the privilege of sitting on a wooden bench in the open cockpit. The Airboat line operated for about four months, carrying more than 1,200 passengers who paid $5 each. Chalk's International Airlines began service between Miami and Bimini in the Bahamas in February 1919. Based in Ft. Lauderdale, Chalk's claimed to be the oldest continuously operating airline in the United States until its closure in 2008. Following World War I, the United States found itself swamped with aviators. Many decided to take their war-surplus aircraft on barnstorming campaigns, performing aerobatic maneuvers to woo crowds. In 1918, the United States Postal Service won the financial backing of Congress to begin experimenting with air mail service, initially using Curtiss Jenny aircraft that had been procured by the United States Army Air Service. Private operators were the first to fly the mail but due to numerous accidents the US Army was tasked with mail delivery. During the Army's involvement they proved to be too unreliable and lost their air mail duties. By the mid-1920s, the Postal Service had developed its own air mail network, based on a transcontinental backbone between New York City and San Francisco. To supplement this service, they offered twelve contracts for spur routes to independent bidders. Some of the carriers that won these routes would, through time and mergers, evolve into Pan Am, Delta Air Lines, Braniff Airways, American Airlines, United Airlines (originally a division of Boeing), Trans World Airlines, Northwest Airlines, and Eastern Air Lines. Service during the early 1920s was sporadic: most airlines at the time were focused on carrying bags of mail. In 1925, however, the Ford Motor Company bought out the Stout Aircraft Company and began construction of the all-metal Ford Trimotor, which became the first successful American airliner. With a 12-passenger capacity, the Trimotor made passenger service potentially profitable. Air service was seen as a supplement to rail service in the American transportation network. At the same time, Juan Trippe began a crusade to create an air network that would link America to the world, and he achieved this goal through his airline, Pan Am, with a fleet of flying boats that linked Los Angeles to Shanghai and Boston to London. Pan Am and Northwest Airways (which began flights to Canada in the 1920s) were the only U.S. airlines to go international before the 1940s. With the introduction of the Boeing 247 and Douglas DC-3 in the 1930s, the U.S. airline industry was generally profitable, even during the Great Depression. This trend continued until the beginning of World War II. Since 1945 World War II, like World War I, brought new life to the airline industry. Many airlines in the Allied countries were flush from lease contracts to the military, and foresaw a future explosive demand for civil air transport, for both passengers and cargo. They were eager to invest in the newly emerging flagships of air travel such as the Boeing Stratocruiser, Lockheed Constellation, and Douglas DC-6. Most of these new aircraft were based on American bombers such as the B-29, which had spearheaded research into new technologies such as pressurization. Most offered increased efficiency from both added speed and greater payload. In the 1950s, the De Havilland Comet, Boeing 707, Douglas DC-8, and Sud Aviation Caravelle became the first flagships of the Jet Age in the West, while the Eastern bloc had Tupolev Tu-104 and Tupolev Tu-124 in the fleets of state-owned carriers such as Czechoslovak ČSA, Soviet Aeroflot and East-German Interflug. The Vickers Viscount and Lockheed L-188 Electra inaugurated turboprop transport. On 4 October 1958, British Overseas Airways Corporation started transatlantic flights between London Heathrow and New York Idlewild with a Comet 4, and Pan Am followed on 26 October with a Boeing 707 service between New York and Paris. The next big boost for the airlines would come in the 1970s, when the Boeing 747, McDonnell Douglas DC-10, and Lockheed L-1011 inaugurated widebody ("jumbo jet") service, which is still the standard in international travel. The Tupolev Tu-144 and its Western counterpart, Concorde, made supersonic travel a reality. Concorde first flew in 1969 and operated through 2003. In 1972, Airbus began producing Europe's most commercially successful line of airliners to date. The added efficiencies for these aircraft were often not in speed, but in passenger capacity, payload, and range. Airbus also features modern electronic cockpits that were common across their aircraft to enable pilots to fly multiple models with minimal cross-training. Deregulation The 1978 U.S. airline industry deregulation lowered federally controlled barriers for new airlines just as a downturn in the nation's economy occurred. New start-ups entered during the downturn, during which time they found aircraft and funding, contracted hangar and maintenance services, trained new employees, and recruited laid-off staff from other airlines. Major airlines dominated their routes through aggressive pricing and additional capacity offerings, often swamping new start-ups. In the place of high barriers to entry imposed by regulation, the major airlines implemented an equally high barrier called loss leader pricing. In this strategy an already established and dominant airline stomps out its competition by lowering airfares on specific routes, below the cost of operating on it, choking out any chance a start-up airline may have. The industry side effect is an overall drop in revenue and service quality. Since deregulation in 1978 the average domestic ticket price has dropped by 40%. So has airline employee pay. By incurring massive losses, the airlines of the USA now rely upon a scourge of cyclical Chapter 11 bankruptcy proceedings to continue doing business. America West Airlines (which has since merged with US Airways) remained a significant survivor from this new entrant era, as dozens, even hundreds, have gone under. In many ways, the biggest winner in the deregulated environment was the air passenger. Although not exclusively attributable to deregulation, indeed the U.S. witnessed an explosive growth in demand for air travel. Many millions who had never or rarely flown before became regular fliers, even joining frequent flyer loyalty programs and receiving free flights and other benefits from their flying. New services and higher frequencies meant that business fliers could fly to another city, do business, and return the same day, from almost any point in the country. Air travel's advantages put long-distance intercity railroad travel and bus lines under pressure, with most of the latter having withered away, whilst the former is still protected under nationalization through the continuing existence of Amtrak. By the 1980s, almost half of the total flying in the world took place in the U.S., and today the domestic industry operates over 10,000 daily departures nationwide. Toward the end of the century, a new style of low cost airline emerged, offering a no-frills product at a lower price. Southwest Airlines, JetBlue, AirTran Airways, Skybus Airlines and other low-cost carriers began to represent a serious challenge to the so-called "legacy airlines", as did their low-cost counterparts in many other countries. Their commercial viability represented a serious competitive threat to the legacy carriers. However, of these, ATA and Skybus have since ceased operations. Increasingly since 1978, US airlines have been reincorporated and spun off by newly created and internally led management companies, and thus becoming nothing more than operating units and subsidiaries with limited financially decisive control. Among some of these holding companies and parent companies which are relatively well known, are the UAL Corporation, along with the AMR Corporation, among a long list of airline holding companies sometime recognized worldwide. Less recognized are the private-equity firms which often seize managerial, financial, and board of directors control of distressed airline companies by temporarily investing large sums of capital in air carriers, to rescheme an airlines assets into a profitable organization or liquidating an air carrier of their profitable and worthwhile routes and business operations. Thus the last 50 years of the airline industry have varied from reasonably profitable, to devastatingly depressed. As the first major market to deregulate the industry in 1978, U.S. airlines have experienced more turbulence than almost any other country or region. In fact, no U.S. legacy carrier survived bankruptcy-free. Among the outspoken critics of deregulation, former CEO of American Airlines, Robert Crandall has publicly stated: "Chapter 11 bankruptcy protection filing shows airline industry deregulation was a mistake." Bailout Congress passed the Air Transportation Safety and System Stabilization Act (P.L. 107–42) in response to a severe liquidity crisis facing the already-troubled airline industry in the aftermath of the September 11 attacks. Through the ATSB Congress sought to provide cash infusions to carriers for both the cost of the four-day federal shutdown of the airlines and the incremental losses incurred through December 31, 2001, as a result of the terrorist attacks. This resulted in the first government bailout of the 21st century. Between 2000 and 2005 US airlines lost $30 billion with wage cuts of over $15 billion and 100,000 employees laid off. In recognition of the essential national economic role of a healthy aviation system, Congress authorized partial compensation of up to $5 billion in cash subject to review by the U.S. Department of Transportation and up to $10 billion in loan guarantees subject to review by a newly created Air Transportation Stabilization Board (ATSB). The applications to DOT for reimbursements were subjected to rigorous multi-year reviews not only by DOT program personnel but also by the Government Accountability Office and the DOT Inspector General. Ultimately, the federal government provided $4.6 billion in one-time, subject-to-income-tax cash payments to 427 U.S. air carriers, with no provision for repayment, essentially a gift from the taxpayers. (Passenger carriers operating scheduled service received approximately $4 billion, subject to tax.) In addition, the ATSB approved loan guarantees to six airlines totaling approximately $1.6 billion. Data from the U.S. Treasury Department show that the government recouped the $1.6 billion and a profit of $339 million from the fees, interest and purchase of discounted airline stock associated with loan guarantees. The three largest major carriers and Southwest Airlines control 70% of the U.S. passenger market. Asia Although Philippine Airlines (PAL) was officially founded on February 26, 1941, its license to operate as an airliner was derived from merged Philippine Aerial Taxi Company (PATCO) established by mining magnate Emmanuel N. Bachrach on 3 December 1930, making it Asia's oldest scheduled carrier still in operation. Commercial air service commenced three weeks later from Manila to Baguio, making it Asia's first airline route. Bachrach's death in 1937 paved the way for its eventual merger with Philippine Airlines in March 1941 and made it Asia's oldest airline. It is also the oldest airline in Asia still operating under its current name. Bachrach's majority share in PATCO was bought by beer magnate Andres R. Soriano in 1939 upon the advice of General Douglas MacArthur and later merged with newly formed Philippine Airlines with PAL as the surviving entity. Soriano has controlling interest in both airlines before the merger. PAL restarted service on 15 March 1941, with a single Beech Model 18 NPC-54 aircraft, which started its daily services between Manila (from Nielson Field) and Baguio, later to expand with larger aircraft such as the DC-3 and Vickers Viscount. Cathay Pacific was one of the first airlines to be launched among the other Asian countries in 1946 along with Asiana Airlines, which later joined in 1988. The license to operate as an airliner was granted by the federal government body after reviewing the necessity at the national assembly. The Hanjin occupies the largest ownership of Korean Air as well as few low-budget airlines as of now. Korean Air is one of the four founders of SkyTeam, which was established in 2000. Asiana Airlines joined Star Alliance in 2003. Korean Air and Asiana Airlines comprise one of the largest combined airline miles and number of passenger served at the regional market of Asian airline industry India was also one of the first countries to embrace civil aviation. One of the first Asian airline companies was Air India, which was founded as Tata Airlines in 1932, a division of Tata Sons Ltd. (now Tata Group). The airline was founded by India's leading industrialist, JRD Tata. On 15 October 1932, J. R. D. Tata himself flew a single engined De Havilland Puss Moth carrying air mail (postal mail of Imperial Airways) from Karachi to Bombay via Ahmedabad. The aircraft continued to Madras via Bellary piloted by Royal Air Force pilot Nevill Vintcent. Tata Airlines was also one of the world's first major airlines which began its operations without any support from the Government. With the outbreak of World War II, the airline presence in Asia came to a relative halt, with many new flag carriers donating their aircraft for military aid and other uses. Following the end of the war in 1945, regular commercial service was restored in India and Tata Airlines became a public limited company on 29 July 1946, under the name Air India. After the independence of India, 49% of the airline was acquired by the Government of India. In return, the airline was granted status to operate international services from India as the designated flag carrier under the name Air India International. On 31 July 1946, a chartered Philippine Airlines (PAL) DC-4 ferried 40 American servicemen to Oakland, California, from Nielson Airport in Makati with stops in Guam, Wake Island, Johnston Atoll and Honolulu, Hawaii, making PAL the first Asian airline to cross the Pacific Ocean. A regular service between Manila and San Francisco was started in December. It was during this year that the airline was designated as the flag carrier of Philippines. During the era of decolonization, newly born Asian countries started to embrace air transport. Among the first Asian carriers during the era were Cathay Pacific of Hong Kong (founded in September 1946), Orient Airways (later Pakistan International Airlines; founded in October 1946), Air Ceylon (later SriLankan Airlines; founded in 1947), Malayan Airways Limited in 1947 (later Singapore and Malaysia Airlines), El Al in Israel in 1948, Garuda Indonesia in 1949, Japan Airlines in 1951, Thai Airways in 1960, and Korean National Airlines in 1947. Singapore Airlines had won quality awards. Latin America and Caribbean Among the first countries to have regular airlines in Latin America and the Caribbean were Bolivia with Lloyd Aéreo Boliviano, Cuba with Cubana de Aviación, Colombia with Avianca (the first airline established in the Americas), Argentina with Aerolíneas Argentinas, Chile with LAN Chile (today LATAM Airlines), Brazil with Varig, the Dominican Republic with Dominicana de Aviación, Mexico with Mexicana de Aviación, Trinidad and Tobago with BWIA West Indies Airways (today Caribbean Airlines), Venezuela with Aeropostal, Puerto Rico with Puertorriquena; and TACA based in El Salvador and representing several airlines of Central America (Costa Rica, Guatemala, Honduras and Nicaragua). All the previous airlines started regular operations well before World War II. Puerto Rican commercial airlines such as Prinair, Oceanair, Fina Air and Vieques Air Link came much after the second world war, as did several others from other countries like Mexico's Interjet and Volaris, Venezuela's Aserca Airlines and others. The air travel market has evolved rapidly over recent years in Latin America. Some industry estimates indicated in 2011 that over 2,000 new aircraft will begin service over the next five years in this region. These airlines serve domestic flights within their countries, as well as connections within Latin America and also overseas flights to North America, Europe, Australia, and Asia. Only five airline groups – Avianca, Panama's Copa, Mexico's Volaris, the Irelandia group and LATAM Airlines – have international subsidiaries and cover many destinations within the Americas as well as major hubs in other continents. LATAM with Chile as the central operation along with Peru, Ecuador, Colombia, Brazil and Argentina and formerly with some operations in the Dominican Republic. The Avianca group has its main operation in Colombia based around the hub in Bogotá, Colombia, as well as subsidiaries in various Latin American countries with hubs in San Salvador, El Salvador, as well as Lima, Peru, with a smaller operation in Ecuador. Copa has subsidiaries Copa Airlines Colombia and Wingo, both in Colombia, while Volaris of Mexico has Volaris Costa Rica and Volaris El Salvador, and the Irelandia group formerly included Viva Aerobus of Mexico; it now includes Viva Colombia and Viva Air Peru. Regulation National Many countries have national airlines that the government owns and operates. Fully private airlines are subject to much government regulation for economic, political, and safety concerns. For instance, governments often intervene to halt airline labor actions to protect the free flow of people, communications, and goods between different regions without compromising safety. The United States, Australia, and to a lesser extent Brazil, Mexico, India, the United Kingdom, and Japan have "deregulated" their airlines. In the past, these governments dictated airfares, route networks, and other operational requirements for each airline. Since deregulation, airlines have been largely free to negotiate their own operating arrangements with different airports, enter and exit routes easily, and to levy airfares and supply flights according to market demand. The entry barriers for new airlines are lower in a deregulated market, and so the U.S. has seen hundreds of airlines start up (sometimes for only a brief operating period). This has produced far greater competition than before deregulation in most markets. The added competition, together with pricing freedom, means that new entrants often take market share with highly reduced rates that, to a limited degree, full service airlines must match. This is a major constraint on profitability for established carriers, which tend to have a higher cost base. As a result, profitability in a deregulated market is uneven for most airlines. These forces have caused some major airlines to go out of business, in addition to most of the poorly established new entrants. In the United States, the airline industry is dominated by four large firms. Because of industry consolidation, after fuel prices dropped considerably in 2015, very little of the savings were passed on to consumers. International Groups such as the International Civil Aviation Organization establish worldwide standards for safety and other vital concerns. Most international air traffic is regulated by bilateral agreements between countries, which designate specific carriers to operate on specific routes. The model of such an agreement was the Bermuda Agreement between the US and UK following World War II, which designated airports to be used for transatlantic flights and gave each government the authority to nominate carriers to operate routes. Bilateral agreements are based on the "freedoms of the air", a group of generalized traffic rights ranging from the freedom to overfly a country to the freedom to provide domestic flights within a country (a very rarely granted right known as cabotage). Most agreements permit airlines to fly from their home country to designated airports in the other country: some also extend the freedom to provide continuing service to a third country, or to another destination in the other country while carrying passengers from overseas. In the 1990s, "open skies" agreements became more common. These agreements take many of these regulatory powers from state governments and open up international routes to further competition. Open skies agreements have met some criticism, particularly within the European Union, whose airlines would be at a comparative disadvantage with the United States' because of cabotage restrictions. Economy In 2017, 4.1 billion passengers have been carried by airlines in 41.9 million commercial scheduled flights (an average payload of passengers), for 7.75 trillion passenger kilometres (an average trip of km) over 45,091 airline routes served globally. In 2016, air transport generated $704.4 billion of revenue in 2016, employed 10.2 million workers, supported 65.5 million jobs and $2.7 trillion of economic activity: 3.6% of the global GDP. In July 2016, the total weekly airline capacity was 181.1 billion Available Seat Kilometers (+6.9% compared to July 2015): 57.6bn in Asia-Pacific, 47.7bn in Europe, 46.2bn in North America, 12.2bn in Middle East, 12.0bn in Latin America and 5.4bn in Africa. Costs Airlines have substantial fixed and operating costs to establish and maintain air services: labor, fuel, airplanes, engines, spares and parts, IT services and networks, airport equipment, airport handling services, booking commissions, advertising, catering, training, aviation insurance and other costs. Thus all but a small percentage of the income from ticket sales is paid out to a wide variety of external providers or internal cost centers. Moreover, the industry is structured so that airlines often act as tax collectors. Airline fuel is untaxed because of a series of treaties existing between countries. Ticket prices include a number of fees, taxes and surcharges beyond the control of airlines. Airlines are also responsible for enforcing government regulations. If airlines carry passengers without proper documentation on an international flight, they are responsible for returning them back to the original country. Analysis of the 1992–1996 period shows that every player in the air transport chain is far more profitable than the airlines, who collect and pass through fees and revenues to them from ticket sales. While airlines as a whole earned 6% return on capital employed (2–3.5% less than the cost of capital), airports earned 10%, catering companies 10–13%, handling companies 11–14%, aircraft lessors 15%, aircraft manufacturers 16%, and global distribution companies more than 30%. There has been continuing cost competition from low cost airlines. Many companies emulate Southwest Airlines in various respects. The lines between full-service and low-cost airlines have become blurred – e.g., with most "full service" airlines introducing baggage check fees despite Southwest not doing so. Many airlines in the U.S. and elsewhere have experienced business difficulty. U.S. airlines that have declared Chapter 11 bankruptcy since 1990 have included American Airlines, Continental Airlines (twice), Delta Air Lines, Northwest Airlines, Pan Am, United Airlines and US Airways (twice). Where an airline has established an engineering base at an airport, then there may be considerable economic advantages in using that same airport as a preferred focus (or "hub") for its scheduled flights. Fuel hedging is a contractual tool used by transportation companies like airlines to reduce their exposure to volatile and potentially rising fuel costs. Several low-cost carriers such as Southwest Airlines adopt this practice. Southwest is credited with maintaining strong business profits between 1999 and the early 2000s due to its fuel hedging policy. Many other airlines are replicating Southwest's hedging policy to control their fuel costs. Operating costs for US major airlines are primarily aircraft operating expense including jet fuel, aircraft maintenance, depreciation and aircrew for 44%, servicing expense for 29% (traffic 11%, passenger 11% and aircraft 7%), 14% for reservations and sales and 13% for overheads (administration 6% and advertising 2%). An average US major Boeing 757-200 flies stages 11.3 block hours per day and costs $2,550 per block hour: $923 of ownership, $590 of maintenance, $548 of fuel and $489 of crew; or $13.34 per 186 seats per block hour. For a Boeing 737-500, a low-cost carrier like Southwest have lower operating costs at $1,526 than a full service one like United at $2,974, and higher productivity with 399,746 ASM per day against 264,284, resulting in a unit cost of $cts/ASM against $cts/ASM. McKinsey observes that "newer technology, larger aircraft, and increasingly efficient operations continually drive down the cost of running an airline", from nearly 40 US cents per ASK at the beginning of the jet age, to just above 10 cents since 2000. Those improvements were passed onto the customer due to high competition: fares have been falling throughout the history of airlines. Revenue Airlines assign prices to their services in an attempt to maximize profitability. The pricing of airline tickets has become increasingly complicated over the years and is now largely determined by computerized yield management systems. Because of the complications in scheduling flights and maintaining profitability, airlines have many loopholes that can be used by the knowledgeable traveler. Many of these airfare secrets are becoming more and more known to the general public, so airlines are forced to make constant adjustments. Most airlines use differentiated pricing, a form of price discrimination, to sell air services at varying prices simultaneously to different segments. Factors influencing the price include the days remaining until departure, the booked load factor, the forecast of total demand by price point, competitive pricing in force, and variations by day of week of departure and by time of day. Carriers often accomplish this by dividing each cabin of the aircraft (first, business and economy) into a number of travel classes for pricing purposes. A complicating factor is that of origin-destination control ("O&D control"). Someone purchasing a ticket from Melbourne to Sydney (as an example) for A$200 is competing with someone else who wants to fly Melbourne to Los Angeles through Sydney on the same flight, and who is willing to pay A$1400. Should the airline prefer the $1400 passenger, or the $200 passenger plus a possible Sydney-Los Angeles passenger willing to pay $1300? Airlines have to make hundreds of thousands of similar pricing decisions daily. The advent of advanced computerized reservations systems in the late 1970s, most notably Sabre, allowed airlines to easily perform cost-benefit analyses on different pricing structures, leading to almost perfect price discrimination in some cases (that is, filling each seat on an aircraft at the highest price that can be charged without driving the consumer elsewhere). The intense nature of airfare pricing has led to the term "fare war" to describe efforts by airlines to undercut other airlines on competitive routes. Through computers, new airfares can be published quickly and efficiently to the airlines' sales channels. For this purpose the airlines use the Airline Tariff Publishing Company (ATPCO), who distribute latest fares for more than 500 airlines to Computer Reservation Systems across the world. The extent of these pricing phenomena is strongest in "legacy" carriers. In contrast, low fare carriers usually offer pre-announced and simplified price structure, and sometimes quote prices for each leg of a trip separately. Computers also allow airlines to predict, with some accuracy, how many passengers will actually fly after making a reservation to fly. This allows airlines to overbook their flights enough to fill the aircraft while accounting for "no-shows", but not enough (in most cases) to force paying passengers off the aircraft for lack of seats, stimulative pricing for low demand flights coupled with overbooking on high demand flights can help reduce this figure. This is especially crucial during tough economic times as airlines undertake massive cuts to ticket prices to retain demand. Over January/February 2018, the cheapest airline surveyed by price comparator rome2rio was now-defunct Tigerair Australia with $0.06/km followed by AirAsia X with $0.07/km, while the most expensive was Charterlines, Inc. with $1.26/km followed by Buddha Air with $1.18/km. For the IATA, the global airline industry revenue was $754 billion in 2017 for a $38.4 billion collective profit, and should rise by 10.7% to $834 billion in 2018 for a $33.8 billion profit forecast, down by 12% due to rising jet fuel and labor costs. The demand for air transport will be less elastic for longer flights than for shorter flights, and more elastic for leisure travel than for business travel. Airlines often have a strong seasonality, with traffic low in winter and peaking in summer. In Europe the most extreme market are the Greek islands with July/August having more than ten times the winter traffic, as Jet2 is the most seasonal among low-cost carriers with July having seven times the January traffic, whereas legacy carriers are much less with only 85/115% variability. Assets and financing Airline financing is quite complex, since airlines are highly leveraged operations. Not only must they purchase (or lease) new airliner bodies and engines regularly, they must make major long-term fleet decisions with the goal of meeting the demands of their markets while producing a fleet that is relatively economical to operate and maintain; comparably Southwest Airlines and their reliance on a single airplane type (the Boeing 737 and derivatives), with the now defunct Eastern Air Lines which operated 17 different aircraft types, each with varying pilot, engine, maintenance, and support needs. A second financial issue is that of hedging oil and fuel purchases, which are usually second only to labor in its relative cost to the company. However, with the current high fuel prices it has become the largest cost to an airline. Legacy airlines, compared with new entrants, have been hit harder by rising fuel prices partly due to the running of older, less fuel efficient aircraft. While hedging instruments can be expensive, they can easily pay for themselves many times over in periods of increasing fuel costs, such as in the 2000–2005 period. In view of the congestion apparent at many international airports, the ownership of slots at certain airports (the right to take-off or land an aircraft at a particular time of day or night) has become a significant tradable asset for many airlines. Clearly take-off slots at popular times of the day can be critical in attracting the more profitable business traveler to a given airline's flight and in establishing a competitive advantage against a competing airline. If a particular city has two or more airports, market forces will tend to attract the less profitable routes, or those on which competition is weakest, to the less congested airport, where slots are likely to be more available and therefore cheaper. For example, Reagan National Airport attracts profitable routes due partly to its congestion, leaving less-profitable routes to Baltimore-Washington International Airport and Dulles International Airport. Other factors, such as surface transport facilities and onward connections, will also affect the relative appeal of different airports and some long-distance flights may need to operate from the one with the longest runway. For example, LaGuardia Airport is the preferred airport for most of Manhattan due to its proximity, while long-distance routes must use John F. Kennedy International Airport's longer runways. Airline Alliances See Main Article: https://en.wikipedia.org/wiki/Airline_alliance The first airline alliance was formed in the 1930s when Pan Am and its subsidiary, Panair do Brasil, agreed to codeshare routes in Latin America when they overlapped with each other. Codesharing involves one airline selling tickets for another airline's flights under its own airline code. An early example of this was Japan Airlines' (JAL) codesharing partnership with Aeroflot in the 1960s on Tokyo–Moscow flights; Aeroflot operated the flights using Aeroflot aircraft, but JAL sold tickets for the flights as if they were JAL flights. Another example was the Austrian–Sabena partnership on the Vienna–Brussels–New York/JFK route during the late '60s, using a Sabena Boeing 707 with Austrian livery. Since airline reservation requests are often made by city-pair (such as "show me flights from Chicago to Düsseldorf"), an airline that can codeshare with another airline for a variety of routes might be able to be listed as indeed offering a Chicago–Düsseldorf flight. The passenger is advised however, that airline no. 1 operates the flight from say Chicago to Amsterdam (for example), and airline no. 2 operates the continuing flight (on a different airplane, sometimes from another terminal) to Düsseldorf. Thus the primary rationale for code sharing is to expand one's service offerings in city-pair terms to increase sales. A more recent development is the airline alliance, which became prevalent in the late 1990s. These alliances can act as virtual mergers to get around government restrictions. The largest are Star Alliance, SkyTeam and Oneworld, and these accounted for over 60% of global commercial air traffic . Alliances of airlines coordinate their passenger service programs (such as lounges and frequent-flyer programs), offer special interline tickets and often engage in extensive codesharing (sometimes systemwide). These are increasingly integrated business combinations—sometimes including cross-equity arrangements—in which products, service standards, schedules, and airport facilities are standardized and combined for higher efficiency. One of the first airlines to start an alliance with another airline was KLM, who partnered with Northwest Airlines. Both airlines later entered the SkyTeam alliance after the fusion of KLM and Air France in 2004. Often the companies combine IT operations, or purchase fuel and aircraft as a bloc to achieve higher bargaining power. However, the alliances have been most successful at purchasing invisible supplies and services, such as fuel. Airlines usually prefer to purchase items visible to their passengers to differentiate themselves from local competitors. If an airline's main domestic competitor flies Boeing airliners, then the airline may prefer to use Airbus aircraft regardless of what the rest of the alliance chooses. Largest airlines The world's largest airlines can be defined in several ways. , American Airlines Group was the largest by fleet size, passengers carried and revenue passenger mile. Delta Air Lines was the largest by revenue, assets value and market capitalization. Lufthansa Group was the largest by number of employees, FedEx Express by freight tonne-kilometres, Turkish Airlines by number of countries served and UPS Airlines by number of destinations served (though United Airlines was the largest passenger airline by number of destinations served). State support Historically, air travel has survived largely through state support, whether in the form of equity or subsidies. The airline industry as a whole has made a cumulative loss during its 100-year history. One argument is that positive externalities, such as higher growth due to global mobility, outweigh the microeconomic losses and justify continuing government intervention. A historically high level of government intervention in the airline industry can be seen as part of a wider political consensus on strategic forms of transport, such as highways and railways, both of which receive public funding in most parts of the world. Although many countries continue to operate state-owned or parastatal airlines, many large airlines today are privately owned and are therefore governed by microeconomic principles to maximize shareholder profit. In December 1991, the collapse of Pan Am, an airline often credited for shaping the international airline industry, highlighted the financial complexities faced by major airline companies. Following the 1978 deregulation, U.S. carriers did not manage to make an aggregate profit for 12 years in 31, including four years where combined losses amounted to $10 billion, but rebounded with eight consecutive years of profits since 2010, including its four with over $10 billion profits. They drop loss-making routes, avoid fare wars and market share battles, limit capacity growth, add hub feed with regional jets to increase their profitability. They change schedules to create more connections, buy used aircraft, reduce international frequencies and leverage partnerships to optimize capacities and benefit from overseas connectivity. Environment Aircraft engines emit noise pollution, gases and particulate emissions, and contribute to global dimming. Growth of the industry in recent years raised a number of ecological questions. Domestic air transport grew in China at 15.5 percent annually from 2001 to 2006. The rate of air travel globally increased at 3.7 percent per year over the same time. In the EU greenhouse gas emissions from aviation increased by 87% between 1990 and 2006. However it must be compared with the flights increase, only in UK, between 1990 and 2006 terminal passengers increased from 100 000 thousands to 250 000 thousands., according to AEA reports every year, 750 million passengers travel by European airlines, which also share 40% of merchandise value in and out of Europe. Without even pressure from "green activists", targeting lower ticket prices, generally, airlines do what is possible to cut the fuel consumption (and gas emissions connected therewith). Further, according to some reports, it can be concluded that the last piston-powered aircraft were as fuel-efficient as the average jet in 2005. Despite continuing efficiency improvements from the major aircraft manufacturers, the expanding demand for global air travel has resulted in growing greenhouse gas (GHG) emissions. Currently, the aviation sector, including US domestic and global international travel, make approximately 1.6 percent of global anthropogenic GHG emissions per annum. North America accounts for nearly 40 percent of the world's GHG emissions from aviation fuel use. emissions from the jet fuel burned per passenger on an average airline flight is about 353 kilograms (776 pounds). Loss of natural habitat potential associated with the jet fuel burned per passenger on a airline flight is estimated to be 250 square meters (2700 square feet). In the context of climate change and peak oil, there is a debate about possible taxation of air travel and the inclusion of aviation in an emissions trading scheme, with a view to ensuring that the total external costs of aviation are taken into account. The airline industry is responsible for about 11 percent of greenhouse gases emitted by the U.S. transportation sector. Boeing estimates that biofuels could reduce flight-related greenhouse-gas emissions by 60 to 80 percent. The solution would be blending algae fuels with existing jet fuel: Boeing and Air New Zealand are collaborating with leading Brazilian biofuel maker Tecbio, New Zealand's Aquaflow Bionomic and other jet biofuel developers around the world. Virgin Atlantic and Virgin Green Fund are looking into the technology as part of a biofuel initiative. KLM has made the first commercial flight with biofuel in 2009. There are projects on electric aircraft, and some of which are fully operational as of 2013. Call signs Each operator of a scheduled or charter flight uses an airline call sign when communicating with airports or air traffic control. Most of these call-signs are derived from the airline's trade name, but for reasons of history, marketing, or the need to reduce ambiguity in spoken English (so that pilots do not mistakenly make navigational decisions based on instructions issued to a different aircraft), some airlines and air forces use call-signs less obviously connected with their trading name. For example, British Airways uses a Speedbird call-sign, named after the logo of one of its predecessors, BOAC, while SkyEurope used Relax. Personnel The various types of airline personnel include flight crew, responsible for the operation of the aircraft. Flight crew members include: pilots (captain and first officer: some older aircraft also required a flight engineer and/or a navigator); flight attendants (led by a purser on larger aircraft); In-flight security personnel on some airlines (most notably El Al) Groundcrew, responsible for operations at airports, include Aerospace and avionics engineers responsible for certifying the aircraft for flight and management of aircraft maintenance; Aerospace engineers, responsible for airframe, powerplant and electrical systems maintenance; Avionics engineers responsible for avionics and instruments maintenance; Airframe and powerplant technicians; Electric System technicians, responsible for maintenance of electrical systems; Flight dispatchers; Baggage handlers; Ramp Agents; Remote centralized weight and balancing; Gate agents; Ticket agents; Passenger service agents (such as airline lounge employees); Reservation agents, usually (but not always) at facilities outside the airport; Crew schedulers. Airlines follow a corporate structure where each broad area of operations (such as maintenance, flight operations (including flight safety), and passenger service) is supervised by a vice president. Larger airlines often appoint vice presidents to oversee each of the airline's hubs as well. Airlines employ lawyers to deal with regulatory procedures and other administrative tasks. Trends The pattern of ownership has been privatized since the mid-1980s, that is, the ownership has gradually changed from governments to private and individual sectors or organizations. This occurs as regulators permit greater freedom and non-government ownership, in steps that are usually decades apart. This pattern is not seen for all airlines in all regions. Many major airlines operating between the 1940s and 1980s were government-owned or government-established. However, most airlines from the earliest days of air travel in the 1920s and 1930s were personal businesses. Growth rates are not consistent in all regions, but countries with a deregulated airline industry have more competition and greater pricing freedom. This results in lower fares and sometimes dramatic spurts in traffic growth. The U.S., Australia, Canada, Japan, Brazil, India and other markets exhibit this trend. The industry has been observed to be cyclical in its financial performance. Four or five years of poor earnings precede five or six years of improvement. But profitability even in the good years is generally low, in the range of 2–3% net profit after interest and tax. In times of profit, airlines lease new generations of airplanes and upgrade services in response to higher demand. Since 1980, the industry has not earned back the cost of capital during the best of times. Conversely, in bad times losses can be dramatically worse. Warren Buffett in 1999 said "the money that had been made since the dawn of aviation by all of this country's airline companies was zero. Absolutely zero." As in many mature industries, consolidation is a trend. Airline groupings may consist of limited bilateral partnerships, long-term, multi-faceted alliances between carriers, equity arrangements, mergers, or takeovers. Since governments often restrict ownership and merger between companies in different countries, most consolidation takes place within a country. In the U.S., over 200 airlines have merged, been taken over, or gone out of business since the Airline Deregulation Act in 1978. Many international airline managers are lobbying their governments to permit greater consolidation to achieve higher economy and efficiency. Types There are several types of passenger airlines, mainly Mainline airlines operate flights by the airline's main operating unit, rather than by regional affiliates or subsidiaries Regional airlines, non-"mainline" airlines that operate regional aircraft; regionals typically operate over shorter non-intercontinental distances, often as feeder services for legacy mainline networks Low-cost carriers, giving a "basic", "no-frills" and perceived inexpensive service Business class airline, an airline aimed at the business traveler, featuring all business class seating and amenities Charter airlines, operating outside regular schedule intervals Flag carriers, the historically nationally owned airlines that were considered representative of the country overseas. Legacy carriers, US carriers that predate the Airline Deregulation Act of 1978 Major airlines of the United States, airlines with at least $1 billion in revenues See also Related lists References Bibliography "A history of the world's airlines", R.E.G. Davies, Oxford U.P, 1964 "The airline encyclopedia, 1909–2000.” Myron J. Smith, Scarecrow Press, 2002 "Flying Off Course: The Economics of International Airlines," 3rd edition. Rigas Doganis, Routledge, New York, 2002. "The Airline Business in the 21st Century." Rigas Doganis, Routledge, New York, 2001. External links Economics of transport and utility industries

1950

https://en.wikipedia.org/wiki/American%20Civil%20Liberties%20Union

American Civil Liberties Union

The American Civil Liberties Union (ACLU) is an American nonprofit human rights organization founded in 1920. The organization strives "to defend and preserve the individual rights and liberties guaranteed to every person in this country by the Constitution and laws of the United States". The ACLU works through litigation and lobbying and has over 1,800,000 members as of July 2018, with an annual budget of over $300 million. Affiliates of the ACLU are active in all 50 states, Washington, D.C., and Puerto Rico. The ACLU provides legal assistance in cases where it considers civil liberties at risk. Legal support from the ACLU can take the form of direct legal representation or preparation of amicus curiae briefs expressing legal arguments when another law firm is already providing representation. In addition to representing persons and organizations in lawsuits, the ACLU lobbies for policy positions established by its board of directors. Current positions of the ACLU include opposing the death penalty; supporting same-sex marriage and the right of LGBT people to adopt; supporting reproductive rights such as birth control and abortion rights; eliminating discrimination against women, minorities, and LGBT people; decarceration in the United States; protecting housing and employment rights of veterans; reforming sex offender registries and protecting housing and employment rights of convicted first-time offenders; supporting the rights of prisoners and opposing torture; and upholding the separation of church and state by opposing government preference for religion over non-religion or for particular faiths over others. Legally, the ACLU consists of two separate but closely affiliated nonprofit organizations, namely the American Civil Liberties Union, a 501(c)(4) social welfare group; and the ACLU Foundation, a 501(c)(3) public charity. Both organizations engage in civil rights litigation, advocacy, and education, but only donations to the 501(c)(3) foundation are tax deductible, and only the 501(c)(4) group can engage in unlimited political lobbying. The two organizations share office space and employees. Overview The ACLU was founded in 1920 by a committee including Roger Nash Baldwin, Crystal Eastman, Walter Nelles, Morris Ernst, Albert DeSilver, Arthur Garfield Hays, Helen Keller, Jane Addams, Felix Frankfurter, Elizabeth Gurley Flynn, and Rose Schneiderman. It focused on freedom of speech, primarily for anti-war protesters. It was founded in response to the controversial Palmer raids, which saw thousands of radicals arrested in manners that violated their constitutional search and seizures protection. During the 1920s, the ACLU expanded its scope to include protecting the free speech rights of artists and striking workers and working with the National Association for the Advancement of Colored People (NAACP) to mitigate discrimination. During the 1930s, the ACLU started to engage in work combating police misconduct and supporting Native American rights. Many of the ACLU's cases involved the defense of Communist Party members and Jehovah's Witnesses. In 1940, the ACLU leadership voted to exclude communists from its leadership positions, a decision rescinded in 1968. During World War II, the ACLU defended Japanese-American citizens, unsuccessfully trying to prevent their forcible relocation to internment camps. During the Cold War, the ACLU headquarters was dominated by anti-communists, but many local affiliates defended members of the Communist Party. By 1964, membership had risen to 80,000, and the ACLU participated in efforts to expand civil liberties. In the 1960s, the ACLU continued its decades-long effort to enforce separation of church and state. It defended several anti-war activists during the Vietnam War. The ACLU was involved in the Miranda case, which addressed conduct by police during interrogations, and in the New York Times case, which established new protections for newspapers reporting on government activities. In the 1970s and 1980s, the ACLU ventured into new legal areas involving the rights of homosexuals, students, prisoners, and the poor. In the twenty-first century, the ACLU has fought the teaching of creationism in public schools and challenged some provisions of anti-terrorism legislation as infringing on privacy and civil liberties. Fundraising and membership spiked after the 2016 presidential election, and the ACLU's 2018 membership was more than 1.2 million. Organization Leadership The ACLU is led by a president and an executive director, Deborah N. Archer and Anthony Romero, respectively, in 2021. The president acts as chair of the ACLU's board of directors, leads fundraising, and facilitates policy-setting. The executive director manages the day-to-day operations of the organization. The board of directors consists of 80 persons, including representatives from each state affiliate and at-large delegates. The organization has its headquarters in 125 Broad Street, a 40-story skyscraper located in Lower Manhattan, New York City. The leadership of the ACLU does not always agree on policy decisions; differences of opinion within the ACLU leadership have sometimes grown into major debates. In 1937, an internal debate erupted over whether to defend Henry Ford's right to distribute anti-union literature. In 1939, a heated debate took place over whether to prohibit communists from serving in ACLU leadership roles. During the early 1950s and Cold War McCarthyism, the board was divided on whether to defend communists. In 1968, a schism formed over whether to represent Benjamin Spock's anti-war activism. In 1973, as the Watergate Scandal continued to unfold, leadership was initially divided over whether to call for President Nixon's impeachment and removal from office. In 2005, there was internal conflict about whether or not a gag rule should be imposed on ACLU employees to prevent the publication of internal disputes. Funding In the year ending March 31, 2014, the ACLU and the ACLU Foundation had a combined income from support and revenue of $100.4 million, originating from grants (50.0%), membership donations (25.4%), donated legal services (7.6%), bequests (16.2%), and revenue (0.9%). Membership dues are treated as donations; members choose the amount they pay annually, averaging approximately $50 per member. In the year ending March 31, 2014, the combined expenses of the ACLU and ACLU Foundation were $133.4 million, spent on programs (86.2%), management (7.4%), and fundraising (8.2%). (After factoring in other changes in net assets of +$30.9 million, from sources such as investment income, the organization had an overall decrease in net assets of $2.1 million.) Over the period from 2011 to 2014, the ACLU Foundation, on average, has accounted for roughly 70% of the combined budget, and the ACLU roughly 30%. The ACLU solicits donations to its charitable foundation. The ACLU is accredited by the Better Business Bureau, and the Charity Navigator has ranked the ACLU with a four-star rating. The local affiliates solicit their own funding; however, some also receive funds from the national ACLU, with the distribution and amount of such assistance varying from state to state. At its discretion, the national organization provides subsidies to smaller affiliates that lack sufficient resources to be self-sustaining; for example, the Wyoming ACLU chapter received such subsidies until April 2015, when, as part of a round of layoffs at the national ACLU, the Wyoming office was closed. In October 2004, the ACLU rejected $1.5 million from both the Ford Foundation and Rockefeller Foundation because the foundations had adopted language from the USA PATRIOT Act in their donation agreements, including a clause stipulating that none of the money would go to "underwriting terrorism or other unacceptable activities". The ACLU views this clause, both in federal law and in the donors' agreements, as a threat to civil liberties, saying it is overly broad and ambiguous. Due to the nature of its legal work, the ACLU is often involved in litigation against governmental bodies, which are generally protected from adverse monetary judgments; a town, state, or federal agency may be required to change its laws or behave differently, but not to pay monetary damages except by an explicit statutory waiver. In some cases, the law permits plaintiffs who successfully sue government agencies to collect money damages or other monetary relief. In particular, the Civil Rights Attorney's Fees Award Act of 1976 leaves the government liable in some civil rights cases. Fee awards under this civil rights statute are considered "equitable relief" rather than damages, and government entities are not immune from equitable relief. Under laws such as this, the ACLU and its state affiliates sometimes share in monetary judgments against government agencies. In 2006, the Public Expressions of Religion Protection Act sought to prevent monetary judgments in the particular case of violations of church-state separation. The ACLU has received court-awarded fees from opponents; for example, the Georgia affiliate was awarded $150,000 in fees after suing a county demanding the removal of a Ten Commandments display from its courthouse; a second Ten Commandments case in the state, in a different county, led to a $74,462 judgment. The State of Tennessee was required to pay $50,000, the State of Alabama $175,000, and the State of Kentucky $121,500, in similar Ten Commandments cases. State affiliates Most of the organization's workload is performed by its local affiliates. There is at least one affiliate organization in each state, as well as one in Washington, D.C., and in Puerto Rico. California has three affiliates. The affiliates operate autonomously from the national organization; each affiliate has its own staff, executive director, board of directors, and budget. Each affiliate consists of two non-profit corporations: a 501(c)(3) corporation–called the ACLU Foundation–that does not perform lobbying, and a 501(c)(4) corporation–called ACLU–which is entitled to lobby. Both organizations share staff and offices ACLU affiliates are the basic unit of the ACLU's organization and engage in litigation, lobbying, and public education. For example, in 2020, the ACLU's New Jersey chapter argued 26 cases before the New Jersey Supreme Court, about one-third of the total cases heard in that court. They sent over 50,000 emails to officials or agencies and had 28 full-time staff. Positions The ACLU's official position statements included the following policies: Affirmative action – The ACLU supports affirmative action. Birth control and abortion – The ACLU supports the right to abortion, as established in the Roe v. Wade decision. The ACLU believes everyone should have affordable access to the full range of contraceptive options. The ACLU's Reproductive Freedom Project manages efforts related to reproductive rights. Campaign funding – The ACLU believes the current system is badly flawed and supports a system based on public funding. The ACLU supports full transparency in identifying donors. However, the ACLU opposes attempts to control political spending. The ACLU supported the Supreme Court's decision in Citizens United v. FEC, which allowed corporations and unions more political speech rights. Criminal law reform – The ACLU seeks an end to what it feels are excessively harsh sentences that "stand in the way of a just and equal society". The ACLU's Criminal Law Reform Project focuses on this issue. Death penalty – The ACLU is opposed to the death penalty in all circumstances. The ACLU's Capital Punishment Project focuses on this issue. Free speech – The ACLU supports free speech, including the right to express unpopular or controversial ideas, such as flag desecration, racist or sexist views, etc. However, a leaked ACLU memo from June 2018 said that speech that can "inflict serious harms" and "impede progress toward equality" may be a lower priority for the organization. Gun rights – The national ACLU's position is that the Second Amendment protects a collective right to own guns rather than an individual right, despite the 2008 Supreme Court decision in District of Columbia v. Heller that the Second Amendment is a personal right. The national organization's position is based on the phrases "a well regulated Militia" and "the security of a free State". However, the ACLU opposes any effort to create a registry of gun owners and has worked with the National Rifle Association of America to prevent a registry from being created, and it has favored protecting the right to carry guns under the 4th Amendment. HIV/AIDS – The policy of the ACLU is to "create a world in which discrimination based on HIV status has ended, people with HIV have control over their medical information and care, and where the government's HIV policy promotes public health and respect and compassion for people living with HIV and AIDS". The ACLU's AIDS Project manages this effort. Human rights – The ACLU's Human Rights project advocates (primarily in an international context) for children's rights, disability rights, immigrant rights, gay rights, and other international obligations. Immigrants' rights – The ACLU supports civil liberties for immigrants to the United States. Lesbian, gay, bisexual and transgender rights – The ACLU supports equal rights for all lesbian, gay, bisexual, transgender, and queer people and works to eliminate discrimination. The ACLU supports equal employment, housing, civil marriage, and adoption rights for LGBT couples. National security – The ACLU is opposed to compromising civil liberties in the name of national security. In this context, the ACLU has condemned government use of spying, indefinite detention without charge or trial, and government-sponsored torture. The ACLU's National Security Project leads this effort. Prisoners' rights – The ACLU's National Prison Project believes that incarceration should only be used as a last resort and that prisons should focus on rehabilitation. The ACLU advocates that prisons treat prisoners according to the Constitution and domestic law. Privacy and technology – The ACLU's Project on Speech, Privacy, and Technology promotes "responsible uses of technology that enhance privacy protection" and opposes uses "that undermine our freedoms and move us closer to a surveillance society". Racial issues – The ACLU's Racial Justice Program combats racial discrimination in all aspects of society, including the educational system, the justice system, and the application of the death penalty. However, the ACLU opposes state censorship of the Confederate flag. Religion – The ACLU supports the right of religious persons to practice their faiths without government interference. The ACLU believes the government should neither prefer religion over non-religion nor favor particular faiths over others. The ACLU is opposed to school-led prayer but protects students' right to pray in school. It opposes the use of religious beliefs to discriminate, such as refusing to provide abortion coverage or providing services to LGBT people. Sex education – The ACLU opposes abstinence-only sex education curricula, and supports comprehensive sex education curricula that encourage effective contraceptive usage and sexually-transmitted disease prevention alongside waiting to have sex. The ACLU opposes segregation in sex education classes because it can lead to increased class size and perpetuate antiquated gender stereotypes. Vaccination policy — The ACLU supports vaccine mandates for people using public facilities and businesses because there is no right to harm others by spreading infectious diseases. Hence, the ACLU states, mandates are "permissible in many settings where the unvaccinated pose a risk to others, including schools and universities, hospitals, restaurants and bars, workplaces and businesses open to the public". The organization supports a public health-based approach to pandemic management and is opposed to criminalizing or jailing people with infectious diseases. Voting rights – The ACLU believes that impediments to voting should be eliminated, particularly if they disproportionately impact minority or poor citizens. The ACLU believes that misdemeanor convictions should not lead to a loss of voting rights. The ACLU's Voting Rights Project leads this effort. Women's rights – The ACLU works to eliminate discrimination against women in all realms. The ACLU encourages the government to be proactive in stopping violence against women. These efforts are led by the ACLU's Women's Rights Project. Support and opposition A variety of persons and organizations support the ACLU. There were over 1,000,000 members in 2017, and the ACLU receives thousands of grants from hundreds of charitable foundations annually. Allies of the ACLU in legal actions have included the National Association for the Advancement of Colored People, the American Jewish Congress, People for the American Way, the National Rifle Association of America, the Electronic Frontier Foundation, Americans United for Separation of Church and State and the National Organization for Women. The ACLU has been criticized by liberals such as when it excluded communists from its leadership ranks when it defended Neo-Nazis, when it declined to defend Paul Robeson, or when it opposed the passage of the National Labor Relations Act. In 2014, an ACLU affiliate supported anti-Islam protesters and in 2018 the ACLU was criticized when it supported the NRA. Conversely, it has been criticized by conservatives such as when it argued against official prayer in public schools or when it opposed the Patriot Act. The ACLU has supported conservative figures such as Rush Limbaugh, George Wallace, Henry Ford and Oliver North as well as liberal figures such as Dick Gregory, Rockwell Kent and Benjamin Spock. Major sources of criticism are legal cases in which the ACLU represents an individual or organization that promotes offensive or unpopular viewpoints, such as the Ku Klux Klan, neo-Nazis, the Nation of Islam, the North American Man/Boy Love Association, the Westboro Baptist Church or the Unite the Right rally. The ACLU's official policy is "... [we have] represented or defended individuals engaged in some truly offensive speech. We have defended the speech rights of communists, Nazis, Ku Klux Klan members, accused terrorists, pornographers, anti-LGBT activists, and flag burners. That's because the defense of freedom of speech is most necessary when the message is one most people find repulsive. Constitutional rights must apply to even the most unpopular groups if they're going to be preserved for everyone." Early years CLB era The ACLU developed from the National Civil Liberties Bureau (CLB), co-founded in 1917 during World War I by Crystal Eastman, an attorney activist, and Roger Nash Baldwin. The focus of the CLB was on freedom of speech, primarily anti-war speech, and on supporting conscientious objectors who did not want to serve in World War I. Three United States Supreme Court decisions in 1919 each upheld convictions under laws against certain anti-war speech. In 1919, the Court upheld the conviction of Socialist Party leader Charles Schenck for publishing anti-war literature. In Debs v. United States, the court upheld the conviction of Eugene Debs. While the Court upheld a conviction a third time in Abrams v. United States, Justice Oliver Wendell Holmes wrote an important dissent which has gradually been absorbed as an American principle: he urged the court to treat freedom of speech as a fundamental right, which should rarely be restricted. In 1918, Crystal Eastman resigned from the organization due to health issues. After assuming sole leadership of the CLB, Baldwin insisted that the organization be reorganized. He wanted to change its focus from litigation to direct action and public education. The CLB directors concurred, and on January 19, 1920, they formed an organization under a new name, the American Civil Liberties Union. Although a handful of other organizations in the United States at that time focused on civil rights, such as the National Association for the Advancement of Colored People (NAACP) and Anti-Defamation League (ADL), the ACLU was the first that did not represent a particular group of persons or a single theme. Like the CLB, the NAACP pursued litigation to work on civil rights, including efforts to overturn the disfranchisement of African Americans in the South that had taken place since the turn of the century. During the first decades of the ACLU, Baldwin continued as its leader. His charisma and energy attracted many supporters to the ACLU board and leadership ranks. Baldwin was ascetic, wearing hand-me-down clothes, pinching pennies, and living on a minimal salary. The ACLU was directed by an executive committee and was not particularly democratic or egalitarian. New Yorkers dominated the ACLU's headquarters. Most ACLU funding came from philanthropies, such as the Garland Fund. Free speech era In the 1920s, government censorship was commonplace. Magazines were routinely confiscated under the anti-obscenity Comstock laws; permits for labor rallies were often denied; and virtually all anti-war or anti-government literature was outlawed. Right-wing conservatives wielded vast amounts of power, and activists that promoted unionization, socialism, or government reform were often denounced as un-American or unpatriotic. In one typical instance in 1923, author Upton Sinclair was arrested for trying to read the First Amendment during an Industrial Workers of the World rally. ACLU leadership was divided on how to challenge civil rights violations. One faction, including Baldwin, Arthur Garfield Hays, and Norman Thomas, believed that direct, militant action was the best path. Hays was the first of many successful attorneys that relinquished their private practices to work for the ACLU. Another group, including Walter Nelles and Walter Pollak, felt that lawsuits taken to the Supreme Court were the best way to achieve change. During the 1920s, the ACLU's primary focus was on freedom of speech in general and speech within the labor movement particularly. Because most of the ACLU's efforts were associated with the labor movement, the ACLU itself came under heavy attack from conservative groups, such as the American Legion, the National Civic Federation, and Industrial Defense Association and the Allied Patriotic Societies. In addition to labor, the ACLU also led efforts in non-labor arenas, for example, promoting free speech in public schools. The ACLU was banned from speaking in New York public schools in 1921. The ACLU, working with the NAACP, also supported racial discrimination cases. The ACLU defended free speech regardless of espoused opinions. For example, the reactionary, anti-Catholic, anti-black Ku Klux Klan (KKK) was a frequent target of ACLU efforts, but the ACLU defended the KKK's right to hold meetings in 1923. There were some civil rights that the ACLU did not make an effort to defend in the 1920s, including censorship of the arts, government search and seizure issues, right to privacy, or wiretapping. Government officials routinely hounded the Communist Party USA, leading it to be the primary client of the ACLU. At the same time, the Communists were very aggressive in their tactics, often engaging in illegal conduct such as denying their party membership under oath. This led to frequent conflicts between the Communists and ACLU. Communist leaders sometimes attacked the ACLU, particularly when the ACLU defended the free speech rights of conservatives, whereas Communists tried to disrupt speeches by critics of the USSR. This uneasy relationship between the two groups continued for decades. Public schools Scopes trial When 1925 arrived five years after the ACLU was formed the organization had virtually no success to show for its efforts. That changed in 1925, when the ACLU persuaded John T. Scopes to defy Tennessee's anti-evolution law in The State of Tennessee v. John Thomas Scopes. Clarence Darrow, a member of the ACLU National Committee, headed Scopes' legal team. The prosecution, led by William Jennings Bryan, contended that the Bible should be interpreted literally in teaching creationism in school. The ACLU lost the case, and Scopes was fined $100. The Tennessee Supreme Court later upheld the law. Still, it overturned the conviction on a technicality. The Scopes trial was a phenomenal public relations success for the ACLU. The ACLU became well known across America, and the case led to the first endorsement of the ACLU by a major US newspaper. The ACLU continued to fight for the separation of church and state in schoolrooms, decade after decade, including the 1982 case McLean v. Arkansas and the 2005 case Kitzmiller v. Dover Area School District. Baldwin was involved in a significant free speech victory of the 1920s after he was arrested for attempting to speak at a rally of striking mill workers in New Jersey. Although the decision was limited to the state of New Jersey, the appeals court's judgment in 1928 declared that constitutional guarantees of free speech must be given "liberal and comprehensive construction", and it marked a major turning point in the civil rights movement, signaling the shift of judicial opinion in favor of civil rights. The most important ACLU case of the 1920s was Gitlow v. New York, in which Benjamin Gitlow was arrested for violating a state law against inciting anarchy and violence when he distributed literature promoting communism. Although the Supreme Court did not overturn Gitlow's conviction, it adopted the ACLU's stance (later termed the incorporation doctrine) that the First Amendment freedom of speech applied to state laws, as well as federal laws. Pierce v. Society of Sisters After the First World War, many native-born Americans had a revival of concerns about the assimilation of immigrants and worries about "foreign" values; they wanted public schools to teach children to be American. Numerous states drafted laws designed to use schools to promote a common American culture, and in 1922, the voters of Oregon passed the Oregon Compulsory Education Act. The law was primarily aimed at eliminating parochial schools, including Catholic schools. It was promoted by groups such as the Knights of Pythias, the Federation of Patriotic Societies, the Oregon Good Government League, the Orange Order, and the Ku Klux Klan. The Oregon Compulsory Education Act required almost all children in Oregon between eight and sixteen years of age to attend public school by 1926. Associate Director Roger Nash Baldwin, a personal friend of Luke E. Hart, the then–Supreme Advocate and future Supreme Knight of the Knights of Columbus, offered to join forces with the Knights to challenge the law. The Knights of Columbus pledged an immediate $10,000 to fight the law and any additional funds necessary to defeat it. The case became known as Pierce v. Society of Sisters, a seminal United States Supreme Court decision that significantly expanded coverage of the Due Process Clause in the Fourteenth Amendment. In a unanimous decision, the court held that the act was unconstitutional and that parents, not the state, had the authority to educate children as they thought best. It upheld the religious freedom of parents to educate their children in religious schools. Early strategy Leaders of the ACLU were divided on the best tactics to use to promote civil liberties. Felix Frankfurter felt that legislation was the best long-term solution because the Supreme Court could not (and in his opinion should not) mandate liberal interpretations of the Bill of Rights. But Walter Pollak, Morris Ernst, and other leaders felt that Supreme Court decisions were the best path to guarantee civil liberties. A series of Supreme Court decisions in the 1920s foretold a changing national atmosphere; anti-radical emotions were diminishing, and there was a growing willingness to protect freedom of speech and assembly via court decisions. Free speech expansion Censorship was commonplace in the early 20th century. State laws and city ordinances routinely outlawed speech deemed obscene or offensive and prohibited meetings or literature promoting unions or labor organizations. Starting in 1926, the ACLU expanded its free speech activities to encompass censorship of art and literature. In that year, H. L. Mencken deliberately broke Boston law by distributing copies of his banned American Mercury magazine; the ACLU defended him and won an acquittal. The ACLU went on to win additional victories, including the landmark case United States v. One Book Called Ulysses in 1933, which reversed a ban by the Customs Department against the book Ulysses by James Joyce. The ACLU only achieved mixed results in the early years, and it was not until 1966 that the Supreme Court finally clarified the obscenity laws in the Roth v. United States and Memoirs v. Massachusetts cases. The Comstock laws banned the distribution of sex education information based on the premise that it was obscene and led to promiscuous behavior. Mary Ware Dennett was fined $300 in 1928 for distributing a pamphlet containing sex education material. The ACLU, led by Morris Ernst, appealed her conviction and won a reversal, in which judge Learned Hand ruled that the pamphlet's primary purpose was to "promote understanding". The success prompted the ACLU to broaden their freedom of speech efforts beyond labor and political speech to encompass movies, press, radio, and literature. The ACLU formed the National Committee on Freedom from Censorship in 1931 to coordinate this effort. By the early 1930s, censorship in the United States was diminishing. Two major victories in the 1930s cemented the ACLU's campaign to promote free speech. In Stromberg v. California, decided in 1931, the Supreme Court sided with the ACLU and affirmed the right of a communist party member to salute a communist flag. The result was the first time the Supreme Court used the Due Process Clause of the 14th amendment to subject states to the requirements of the First Amendment. In Near v. Minnesota, also decided in 1931, the Supreme Court ruled that states may not exercise prior restraint and prevent a newspaper from publishing, simply because the newspaper had a reputation for being scandalous. 1930s The late 1930s saw the emergence of a new era of tolerance in the United States. National leaders hailed the Bill of Rights, particularly as it protected minorities, as the essence of democracy. The 1939 Supreme Court decision in Hague v. Committee for Industrial Organization affirmed the right of communists to promote their cause. Even conservative elements, such as the American Bar Association, began to campaign for civil liberties, which were long considered to be the domain of left-leaning organizations. By 1940, the ACLU had achieved many of the goals it set in the 1920s, and many of its policies were the law of the land. Expansion In 1929, after the Scopes and Dennett victories, Baldwin perceived that there was vast, untapped support for civil liberties in the United States. Baldwin proposed an expansion program for the ACLU, focusing on police brutality, Native American rights, African American rights, censorship in the arts, and international civil liberties. The board of directors approved Baldwin's expansion plan, except for the international efforts. The ACLU played a significant role in passing the 1932 Norris–La Guardia Act, a federal law that prohibited employers from preventing employees from joining unions and stopped the practice of outlawing strikes, marriages, and labor organizing activities with the use of injunctions. The ACLU also played a key role in initiating a nationwide effort to reduce misconduct (such as extracting false confessions) within police departments by publishing the report Lawlessness in Law Enforcement in 1931, under the auspices of Herbert Hoover's Wickersham Commission. In 1934, the ACLU lobbied for the passage of the Indian Reorganization Act, which restored some autonomy to Native American tribes, and established penalties for kidnapping Native American children. Although the ACLU deferred to the NAACP for litigation promoting civil liberties for African Americans, the ACLU engaged in educational efforts and published Black Justice in 1931, a report which documented institutional racism throughout the South, including lack of voting rights, segregation, and discrimination in the justice system. Funded by the Garland Fund, the ACLU also participated in producing the influential Margold Report, which outlined a strategy to fight for civil rights for blacks. The ACLU planned to demonstrate that the "separate but equal" policies governing the Southern discrimination were illegal because blacks were never, in fact, treated equally. Depression era and the New Deal In 1932twelve years after the ACLU was foundedit had achieved significant success; the Supreme Court had embraced the free speech principles espoused by the ACLU, and the general public was becoming more supportive of civil rights in general. But the Great Depression brought new assaults on civil liberties; the year 1930 saw a large increase in the number of free speech prosecutions, a doubling of the number of lynchings, and all meetings of unemployed persons were banned in Philadelphia. The Franklin D. Roosevelt administration proposed the New Deal to combat the depression. ACLU leaders were of mixed opinions about the New Deal since many felt that it represented an increase in government intervention into personal affairs and because the National Recovery Administration suspended antitrust legislation. Roosevelt was not personally interested in civil rights but did appoint many civil libertarians to key positions, including Interior Secretary Harold Ickes, a member of the ACLU. The economic policies of the New Deal leaders were often aligned with ACLU goals, but social goals were not. In particular, movies were subject to a barrage of local ordinances that banned screenings deemed immoral or obscene. Even public health films portraying pregnancy and birth were banned, as was Life magazine's April 11, 1938, issue, which included photos of the birth process. The ACLU fought these bans but did not prevail. The Catholic Church attained increasing political influence in the 1930s; it used its influence to promote the censorship of movies and to discourage the publication of birth control information. This conflict between the ACLU and the Catholic Church led to the resignation of the last Catholic priest from ACLU leadership in 1934; a Catholic priest would not be represented again until the 1970s. The ACLU took no official position on president Franklin Delano Roosevelt's 1937 court-packing plan, which threatened to increase the number of Supreme Court justices unless the Supreme Court reversed its course and began approving New Deal legislation. The Supreme Court responded by making a major shift in policy, and no longer applied strict constitutional limits to government programs, and also began to take a more active role in protecting civil liberties. The first decision that marked the court's new direction was De Jonge v. Oregon, in which a communist labor organizer was arrested for calling a meeting to discuss unionization. The ACLU attorney Osmond Fraenkel, working with International Labor Defense, defended De Jonge in 1937 and won a major victory when the Supreme Court ruled that "peaceable assembly for lawful discussion cannot be made a crime." The De Jonge case marked the start of an era lasting for a dozen years, during which Roosevelt appointees (led by Hugo Black, William O. Douglas, and Frank Murphy) established a body of civil liberties law. In 1938, Justice Harlan F. Stone wrote the famous "footnote four" in United States v. Carolene Products Co. in which he suggested that state laws which impede civil liberties wouldhenceforthrequire compelling justification. Senator Robert F. Wagner proposed the National Labor Relations Act in 1935, which empowered workers to unionize. Ironically, after 15 years of fighting for workers' rights, the ACLU initially opposed the act (it later took no stand on the legislation) because some ACLU leaders feared the increased power the bill gave to the government. The newly formed National Labor Relations Board (NLRB) posed a dilemma for the ACLU because, in 1937, it issued an order to Henry Ford, prohibiting Ford from disseminating anti-union literature. Part of the ACLU leadership habitually took the side of labor, and that faction supported the NLRB's action. But part of the ACLU supported Ford's right to free speech. ACLU leader Arthur Garfield Hays proposed a compromise (supporting the auto workers union, yet also endorsing Ford's right to express personal opinions), but the schism highlighted a deeper divide that would become more prominent in the years to come. The ACLU's support of the NLRB was a significant development for the ACLU because it marked the first time it accepted that a government agency could be responsible for upholding civil liberties. Until 1937, the ACLU felt that citizens and private organizations best upheld civil rights. Some factions in the ACLU proposed new directions for the organization. In the late 1930s, some local affiliates proposed shifting their emphasis from civil liberties appellate actions to becoming a legal aid society centered on store front offices in low-income neighborhoods. The ACLU directors rejected that proposal. Other ACLU members wanted the ACLU to shift focus into the political arena and be more willing to compromise their ideals to strike deals with politicians. The ACLU leadership also rejected this initiative. Jehovah's Witnesses The ACLU's support of defendants with unpopular, sometimes extreme, viewpoints has produced many landmark court cases and established new civil liberties. One such defendant was the Jehovah's Witnesses, who were involved in a large number of Supreme Court cases. Cases that the ACLU supported included Lovell v. City of Griffin (which struck down a city ordinance that required a permit before a person could distribute "literature of any kind"); Martin v. Struthers (which struck down an ordinance prohibiting door-to-door canvassing); and Cantwell v. Connecticut (which reversed the conviction of a Witness who was reciting offensive speech on a street corner). The most important cases involved statutes requiring flag salutes. The Jehovah's Witnesses felt that saluting a flag was contrary to their religious beliefs. Two children were convicted in 1938 of not saluting the flag. The ACLU supported their appeal to the Supreme Court, but the court affirmed the conviction in 1940. But three years later, in West Virginia State Board of Education v. Barnette, the Supreme court reversed itself and wrote, "If there is any fixed star in our constitutional constellation, it is that no official, high or petty, can prescribe what shall be orthodox in politics, nationalism, religion, or other matters of opinion or force citizens to confess by word or act their faith therein." To underscore its decision, the Supreme Court announced it on Flag Day. Communism and totalitarianism The rise of totalitarian regimes in Germany, Russia, and other countries that rejected freedom of speech and association greatly impacted the civil liberties movement in the US; anti-Communist sentiment rose, and civil liberties were curtailed. The ACLU leadership was divided over whether or not to defend pro-Nazi speech in the United States; pro-labor elements within the ACLU were hostile towards Nazism and fascism and objected when the ACLU defended Nazis. Several states passed laws outlawing hate speech directed at ethnic groups. The first person arrested under New Jersey's 1935 hate speech law was a Jehovah's Witness who was charged with disseminating anti-Catholic literature. The ACLU defended the Jehovah's Witnesses, and the charges were dropped. The ACLU defended numerous pro-Nazi groups, defending their rights to free speech and free association. In the late 1930s, the ACLU allied itself with the Popular Front, a coalition of liberal organizations coordinated by the United States Communist Party. The ACLU benefited because affiliates from the Popular Front could often fight local civil rights battles much more effectively than the New York-based ACLU. The association with the Communist Party led to accusations that the ACLU was a "Communist front", particularly because Harry F. Ward was both chairman of the ACLU and chairman of the American League Against War and Fascism, a Communist organization. The House Un-American Activities Committee (HUAC) was created in 1938 to uncover sedition and treason within the United States. When witnesses testified at its hearings, the ACLU was mentioned several times, leading the HUAC to mention the ACLU prominently in its 1939 report. This damaged the ACLU's reputation severely, even though the report said that it could not "definitely state whether or not" the ACLU was a Communist organization. While the ACLU rushed to defend its image against allegations of being a Communist front, it also protected witnesses harassed by the HUAC. The ACLU was one of the few organizations to protest (unsuccessfully) against the passage of the Smith Act in 1940, which would later be used to imprison many persons who supported Communism. The ACLU defended many persons who were prosecuted under the Smith Act, including labor leader Harry Bridges. ACLU leadership was split on whether to purge its leadership of Communists. Norman Thomas, John Haynes Holmes, and Morris Ernst were anti-Communists who wanted to distance the ACLU from Communism; opposing them were Harry F. Ward, Corliss Lamont, and Elizabeth Gurley Flynn, who rejected any political test for ACLU leadership. A bitter struggle ensued throughout 1939, and the anti-Communists prevailed in February 1940 when the board voted to prohibit anyone who supported totalitarianism from ACLU leadership roles. Ward immediately resigned, andfollowing a contentious six-hour debateFlynn was voted off the ACLU's board. The 1940 resolution was considered by many to be a betrayal of its fundamental principles. The resolution was rescinded in 1968, and Flynn was posthumously reinstated to the ACLU in 1970. Mid-century World War II When World War II engulfed the United States, the Bill of Rights was enshrined as a hallowed document, and numerous organizations defended civil liberties. Chicago and New York proclaimed "Civil Rights" weeks, and President Franklin Delano Roosevelt announced a national Bill of Rights day. Eleanor Roosevelt was the keynote speaker at the 1939 ACLU convention. Despite this newfound respect for civil rights, Americans were becoming adamantly anti-communist and believed that excluding communists from American society was an essential step to preserve democracy. Contrasted to World War I, there was relatively little violation of civil liberties during World War II. President Roosevelt was a strong supporter of civil liberties, butmore importantlythere were few anti-war activists during World War II. The most significant exception was the internment of Japanese Americans. Japanese American internment Two months after the Japanese attack on Pearl Harbor, Roosevelt authorized the creation of military "exclusion zones" with Executive Order 9066, paving the way for the detention of all West Coast Japanese Americans in inland camps. In addition to the non-citizen Issei (prohibited from naturalization as members of an "unassimilable" race), over two-thirds of those swept up were American-born citizens. The ACLU immediately protested to Roosevelt, comparing the evacuations to Nazi concentration camps. The ACLU was the only major organization to object to the internment plan, and their position was very unpopular, even within the organization. Not all ACLU leaders wanted to defend the Japanese Americans; Roosevelt loyalists such as Morris Ernst wanted to support Roosevelt's war effort, but pacifists such as Baldwin and Norman Thomas felt that Japanese Americans needed access to due process before they could be imprisoned. In a March 20, 1942, letter to Roosevelt, Baldwin called on the administration to allow Japanese Americans to prove their loyalty at individual hearings, describing the constitutionality of the planned removal "open to grave question". His suggestions went nowhere, and opinions within the organization became increasingly divided as the Army began the "evacuation" of the West Coast. In May, the two factions, one pushing to fight the exclusion orders then being issued, the other advocating support for the President's policy of removing citizens whose "presence may endanger national security", brought their opposing resolutions to a vote before the board and the ACLU's national leaders. They decided not to challenge the eviction of Japanese American citizens; on June 22, instructions were sent to West Coast branches not to support cases that argued the government had no constitutional right to do so. The ACLU offices on the West Coast had been more directly involved in addressing the tide of anti-Japanese prejudice from the start, as they were geographically closer to the issue and were already working on cases challenging the exclusion by this time. The Seattle office, assisting in Gordon Hirabayashi's lawsuit, created an unaffiliated committee to continue the work the ACLU had started, while in Los Angeles, attorney A.L. Wirin continued to represent Ernest Kinzo Wakayama but without addressing the case's constitutional questions. Wirin would lose private clients because of his defense of Wakayama and other Japanese Americans; however, the San Francisco branch, led by Ernest Besig, refused to discontinue its support for Fred Korematsu, whose case had been taken on before the June 22 directive, and attorney Wayne Collins, with Besig's full support, centered his defense on the illegality of Korematsu's exclusion. The West Coast offices had wanted a test case to take to court. However, they had a difficult time finding a Japanese American who was both willing to violate the internment orders and able to meet the ACLU's desired criteria of a sympathetic, Americanized plaintiff. Of the 120,000 Japanese Americans affected by the order, only 12 disobeyed, and Korematsu, Hirabayashi, and two others were the only resisters whose cases eventually made it to the Supreme Court. Hirabayashi v. United States came before the Court in May 1943, and the justices upheld the government's right to exclude Japanese Americans from the West Coast; although it had earlier forced its local office in L.A. to stop aiding Hirabayashi, the ACLU donated $1,000 to the case (over a third of the legal team's total budget) and submitted an amicus brief. Besig, dissatisfied with Osmond Fraenkel's tamer defense, filed an additional amicus brief that directly addressed Hirabayashi's constitutional rights. In the meantime, A.L. Wirin served as one of the attorneys in Yasui v. United States (decided the same day as the Hirabayashi case and with the same results). Still, he kept his arguments within the national office's parameters. The only case to receive a favorable ruling, ex parte Endo, was also aided by two amicus briefs from the ACLU, one from the more conservative Fraenkel and another from the more putative Wayne Collins. Korematsu v. United States proved to be the most controversial of these cases, as Besig and Collins refused to bow to the national ACLU office's pressure to pursue the case without challenging the government's right to remove citizens from their homes. The ACLU board threatened to revoke the San Francisco branch's national affiliation. At the same time, Baldwin tried unsuccessfully to convince Collins to step down so he could replace him as lead attorney in the case. Eventually, Collins agreed to present the case alongside Charles Horsky; however, their arguments before the Supreme Court remained based on the unconstitutionality of the exclusion order Korematsu had disobeyed. The case was decided in December 1944, when the Court once again upheld the government's right to relocate Japanese Americans, although Korematsu's, Hirabayashi's and Yasui's convictions were later overturned in coram nobis proceedings in the 1980s. Legal scholar Peter Irons later asserted that the national office of the ACLU's decision not to challenge the constitutionality of Executive Order 9066 directly had "crippled the effective presentation of these appeals to the Supreme Court". The national office of the ACLU was even more reluctant to defend anti-war protesters. A majority of the board passed a resolution in 1942 that declared the ACLU unwilling to defend anyone who interfered with the United States' war effort. Included in this group were the thousands of Nisei who renounced their US citizenship during the war but later regretted the decision and tried to revoke their applications for "repatriation". (A significant number of those slated to "go back" to Japan had never actually been to the country and were being deported rather than repatriated.) Ernest Besig had in 1944 visited the Tule Lake Segregation Center, where the majority of these "renunciants" were concentrated, and subsequently enlisted Wayne Collins' help to file a lawsuit on their behalf, arguing the renunciations had been given under duress. The national organization prohibited local branches from representing the renunciants, forcing Collins to pursue the case independently, although Besig and the Northern California office provided some support. During his 1944 visit to Tule Lake, Besig had also become aware of a hastily constructed stockade in which Japanese American internees were routinely being brutalized and held for months without due process. The national ACLU office forbade Besig to intervene on behalf of the stockade prisoners or even to visit the Tule Lake camp without prior written approval from Baldwin. Unable to help directly, Besig turned to Wayne Collins for assistance. Using the threat of habeas corpus suits, Collins managed to have the stockade closed down. A year later, after learning that the stockade had been reestablished, he returned to the camp and had it closed down for good. End of WWII in 1945 When the war ended in 1945, the ACLU was 25 years old and had accumulated impressive legal victories. President Harry S. Truman sent a congratulatory telegram to the ACLU on the occasion of their 25th anniversary. American attitudes had changed since World War I, and dissent by minorities was tolerated with more willingness. The Bill of Rights was more respected, and minority rights were becoming more commonly championed. During their 1945 annual conference, the ACLU leaders composed a list of important civil rights issues to focus on in the future, including racial discrimination and separation of church and state. The ACLU supported the African-American defendants in Shelley v. Kraemer, when they tried to occupy a house they had purchased in a neighborhood with racially restrictive housing covenants. The African-American purchasers won the case in 1945. Cold War era Anti-Communist sentiment gripped the United States during the Cold War beginning in 1946. Federal investigations caused many persons with Communist or left-leaning affiliations to lose jobs, become blocklisted, or be jailed. During the Cold War, although the United States collectively ignored the civil rights of Communists, other civil libertiessuch as due process in law and separation of church and statecontinued to be reinforced and even expanded. The ACLU was internally divided when it purged Communists from its leadership in 1940, and that ambivalence continued as it decided whether to defend alleged Communists during the late 1940s. Some ACLU leaders were anti-Communist and felt that the ACLU should not defend any victims. Some ACLU leaders felt that Communists were entitled to free speech protections and that the ACLU should defend them. Other ACLU leaders were uncertain about the threat posed by Communists and tried to establish a compromise between the two extremes. This ambivalent state of affairs would last until 1954, when the civil liberties faction prevailed, leading to most anti-Communist leaders' resignations. In 1947, President Truman issued Executive Order 9835, which created the Federal Loyalty Program. This program authorized the Attorney General to create a list of organizations that were deemed to be subversive. Any association with these programs was ground for barring the person from employment. Listed organizations were not notified that they were being considered for the list, nor did they have an opportunity to present counterarguments; nor did the government divulge any factual basis for inclusion in the list. Although ACLU leadership was divided on whether to challenge the Federal Loyalty Program, some challenges were successfully made. Also in 1947, the House Un-American Activities Committee (HUAC) subpoenaed ten Hollywood directors and writers, the Hollywood Ten, intending to ask them to identify Communists, but the witnesses refused to testify. All were imprisoned for contempt of Congress. The ACLU supported several artists' appeals but lost on appeal. The Hollywood establishment panicked after the HUAC hearings and created a blacklist that prohibited anyone with leftist associations from working. The ACLU supported legal challenges to the blocklist, but those challenges failed. The ACLU was more successful with an education effort; the 1952 report The Judges and the Judged, prepared at the ACLU's direction in response to the blocklisting of actress Jean Muir, described the unfair and unethical actions behind the blocklisting process, and it helped gradually turn public opinion against McCarthyism. The federal government took direct aim at the US Communist Party in 1948 when it indicted its top twelve leaders in the Foley Square trial. The case hinged on whether or not mere membership in a totalitarian political party was sufficient to conclude that members advocated the overthrow of the United States government. The ACLU chose not to represent any of the defendants, and they were all found guilty and sentenced to three to five years in prison. Their defense attorneys were all cited for contempt, went to prison, and were disbarred. When the government indicted additional party members, the defendants could not find attorneys to represent them. Communists protested outside the courthouse; a bill to outlaw picketing of courthouses was introduced in Congress, and the ACLU supported the anti-picketing law. In a change of heart, the ACLU supported the party leaders during their appeal process. The Supreme Court upheld the convictions in the Dennis v. United States decision by softening the free speech requirements from a "clear and present danger" test to a "grave and probable" test. The ACLU issued a public condemnation of the Dennis decision, and resolved to fight it. One reason for the Supreme Court's support of Cold War legislation was the 1949 deaths of Supreme Court justices Frank Murphy and Wiley Rutledge, leaving Hugo Black and William O. Douglas as the only remaining civil libertarians on the Court. The Dennis decision paved the way for the prosecution of hundreds of other Communist party members. The ACLU supported many Communists during their appeals (although most of the initiative originated with local ACLU affiliates, not the national headquarters), but most convictions were upheld. The two California affiliates, in particular, felt the national ACLU headquarters was not supporting civil liberties strongly enough, and they initiated more cold war cases than the national headquarters did. The ACLU challenged many loyalty oath requirements across the country, but the courts upheld most loyalty oath laws. California ACLU affiliates successfully challenged the California state loyalty oath. The Supreme Court, until 1957, upheld nearly every law which restricted the liberties of Communists. The ACLU, even though it scaled back its defense of Communists during the Cold War, still came under heavy criticism as a "front" for Communism. Critics included the American Legion, Senator Joseph McCarthy, the HUAC, and the FBI. Several ACLU leaders were sympathetic to the FBI, and as a consequence, the ACLU rarely investigated any of the many complaints alleging abuse of power by the FBI during the Cold War. In 1950, Raymond L. Wise, ACLU board member 1933–1951, defended William Perl, one of the other spies embroiled in the atomic espionage cases (made famous by the execution of Julius Rosenberg and Ethel Rosenberg). However, the ACLU publicly endorsed the guilty verdict in the Rosenberg case. The ACLU took the position that the execution of the Rosenbergs did not involve a civil rights issue. Organizational change In 1950, the ACLU board of directors asked executive director Baldwin to resign, feeling he lacked the organizational skills to lead the 9,000 (and growing) member organization. Baldwin objected, but a majority of the board elected to remove him from the position, and he was replaced by Patrick Murphy Malin. Under Malin's guidance, membership tripled to 30,000 by 1955the start of 24 years of continual growth leading to 275,000 members in 1974. Malin also presided over an expansion of local ACLU affiliates. The ACLU, controlled by an elite of a few dozen New Yorkers, became more democratic in the 1950s. In 1951, the ACLU amended its bylaws to permit the local affiliates to participate directly in voting on ACLU policy decisions. A bi-annual conference, open to the entire membership, was instituted in the same year; in later decades, it became a pulpit for activist members, who suggested new directions for the ACLU, including abortion rights, death penalty, and rights of the poor. McCarthy era During the early 1950s, the ACLU continued to steer a moderate course through the Cold War. When singer Paul Robeson was denied a passport in 1950, even though he was not accused of any illegal acts, the ACLU chose not to defend him. The ACLU later reversed their stance and supported William Worthy and Rockwell Kent in their passport confiscation cases, which resulted in legal victories in the late 1950s. In response to communist witch-hunts, many witnesses and employees chose to use the fifth amendment protection against self-incrimination to avoid divulging information about their political beliefs. Government agencies and private organizations, in response, established policies which inferred communist party membership for anyone who invoked the fifth amendment. The national ACLU was divided on whether to defend employees who had been fired merely for pleading the fifth amendment, but the New York affiliate successfully assisted teacher Harry Slochower in his Supreme Court case, which reversed his termination. The fifth amendment issue became the catalyst for a watershed event in 1954, which finally resolved the ACLU's ambivalence by ousting the anti-communists from ACLU leadership. In 1953, the anti-communists, led by Norman Thomas and James Fly, proposed a set of resolutions that inferred guilt of persons that invoked the fifth amendment. These resolutions were the first that fell under the ACLU's new organizational rules permitting local affiliates to participate in the vote; the affiliates outvoted the national headquarters and rejected the anti-communist resolutions. Anti-communist leaders refused to accept the results of the vote and brought the issue up for discussion again at the 1954 bi-annual convention. ACLU member Frank Graham, president of the University of North Carolina, attacked the anti-communists with a counter-proposal, which stated that the ACLU "stand[s] against guilt by association, judgment by accusation, the invasion of privacy of personal opinions and beliefs, and the confusion of dissent with disloyalty". The anti-communists continued to battle Graham's proposal but were outnumbered by the affiliates. The anti-communists finally gave up and departed the board of directors in late 1954 and 1955, ending an eight-year ambivalence within the ACLU leadership ranks. After that, the ACLU proceeded with firmer resolve against Cold War anti-communist legislation. The period from the 1940 resolution (and the purge of Elizabeth Flynn) to the 1954 resignation of the anti-communist leaders is considered by many to be an era in which the ACLU abandoned its core principles. McCarthyism declined in late 1954 after television journalist Edward R. Murrow and others publicly chastised McCarthy. The controversies over the Bill of Rights that the Cold War generated ushered in a new era in American Civil liberties. In 1954, in Brown v. Board of Education, the Supreme Court unanimously overturned state-sanctioned school segregation, and after that, a flood of civil rights victories dominated the legal landscape. The Supreme Court handed the ACLU two key victories in 1957, in Watkins v. United States and Yates v. United States, both of which undermined the Smith Act and marked the beginning of the end of communist party membership inquiries. In 1965, the Supreme Court produced some decisions, including Lamont v. Postmaster General (in which the plaintiff was Corliss Lamont, a former ACLU board member), which upheld fifth amendment protections and brought an end to restrictions on political activity. 1960s The decade from 1954 to 1964 was the most successful period in the ACLU's history. Membership rose from 30,000 to 80,000, and by 1965 it had affiliates in seventeen states. During the ACLU's bi-annual conference in Colorado in 1964, the Supreme Court issued rulings on eight cases involving the ACLU; the ACLU prevailed on seven of the eight. The ACLU played a role in Supreme Court decisions reducing censorship of literature and arts, protecting freedom of association, prohibiting racial segregation, excluding religion from public schools, and providing due process protection to criminal suspects. The ACLU's success arose from changing public attitudes; the American populace was more educated, tolerant, and willing to accept unorthodox behavior. Separation of church and state Legal battles concerning the separation of church and state originated in laws dating to 1938, which required religious instruction in school or provided state funding for religious schools. The Catholic church was a leading proponent of such laws, and the primary opponents (the "separationists") were the ACLU, Americans United for Separation of Church and State, and the American Jewish Congress. The ACLU led the challenge in the 1947 Everson v. Board of Education case, in which Justice Hugo Black wrote "[t]he First Amendment has erected a wall between church and state.... That wall must be kept high and impregnable." It was not clear that the Bill of Rights forbid state governments from supporting religious education, and strong legal arguments were made by religious proponents, arguing that the Supreme Court should not act as a "national school board", and that the Constitution did not govern social issues. However, the ACLU and other advocates of church/state separation persuaded the Court to declare such activities unconstitutional. Historian Samuel Walker writes that the ACLU's "greatest impact on American life" was its role in persuading the Supreme Court to "constitutionalize" so many public controversies. In 1948, the ACLU prevailed in the McCollum v. Board of Education case, which challenged public school religious classes taught by clergy paid for by private funds. The ACLU also won cases challenging schools in New Mexico that were taught by clergy and had crucifixes hanging in the classrooms. In the 1960s, the ACLU, in response to member insistence, turned its attention to the in-class promotion of religion. In 1960, 42 percent of American schools included Bible reading. In 1962, the ACLU published a policy statement condemning in-school prayers, observation of religious holidays, and Bible reading. The Supreme Court concurred with the ACLU's position when it prohibited New York's in-school prayers in the 1962 Engel v. Vitale decision. Religious factions across the country rebelled against the anti-prayer decisions, leading them to propose the School Prayer Constitutional Amendment, which declared in-school prayer legal. The ACLU participated in a lobbying effort against the amendment, and the 1966 congressional vote failed to obtain the required two-thirds majority. However, not all cases were victories; ACLU lost cases in 1949 and 1961 which challenged state laws requiring commercial businesses to close on Sunday, the Christian Sabbath. The Supreme Court has never overturned such laws, although some states subsequently revoked many of the laws under pressure from commercial interests. Freedom of expression During the 1940s and 1950s, the ACLU continued its battle against censorship of art and literature. In 1948, the New York affiliate of the ACLU received mixed results from the Supreme Court, winning the appeal of Carl Jacob Kunz, who was convicted for speaking without a police permit, but losing the appeal of Irving Feiner who was arrested to prevent a breach of the peace, based on his oration denouncing President Truman and the American Legion. The ACLU lost the case of Joseph Beauharnais, who was arrested for group libel when he distributed literature impugning the character of African Americans. Cities across America routinely banned movies because they were deemed to be "harmful", "offensive", or "immoral"censorship which was validated by the 1915 Mutual v. Ohio Supreme Court decision which held movies to be mere commerce, undeserving of first amendment protection. The film The Miracle was banned in New York in 1951 at the behest of the Catholic Church, but the ACLU supported the film's distributor in an appeal of the ban, and won a major victory in the 1952 decision Joseph Burstyn, Inc. v. Wilson. The Catholic Church led efforts throughout the 1950s attempting to persuade local prosecutors to ban various books and movies, leading to conflict with the ACLU when the ACLU published it statement condemning the church's tactics. Further legal actions by the ACLU successfully defended films such as M and la Ronde, leading the eventual dismantling of movie censorship. Hollywood continued employing self-censorship with its own Production Code, but in 1956 the ACLU called on Hollywood to abolish the Code. The ACLU defended beat generation artists, including Allen Ginsberg who was prosecuted for his poem "Howl"; andin an unorthodox case the ACLU helped a coffee house regain its restaurant license which was revoked because its Beat customers were allegedly disturbing the peace of the neighborhood. The ACLU lost an important press censorship case when, in 1957, the Supreme Court upheld the obscenity conviction of publisher Samuel Roth for distributing adult magazines. As late as 1953, books such as Tropic of Cancer and From Here to Eternity were still banned. But public standards rapidly became more liberal through the 1960s, and obscenity was notoriously difficult to define, so by 1971, obscenity prosecutions had halted. Racial discrimination A major aspect of civil liberties progress after World War II was the undoing centuries of racism in federal, state, and local governments an effort generally associated with the civil rights movement. Several civil liberties organizations worked together for progress, including the National Association for the Advancement of Colored People (NAACP), the ACLU, and the American Jewish Congress. The NAACP took primary responsibility for Supreme Court cases (often led by lead NAACP attorney Thurgood Marshall), with the ACLU focusing on police misconduct, and supporting the NAACP with amicus briefs. The NAACP achieved a key victory in 1950 with the Henderson v. United States decision that ended segregation in interstate bus and rail transportation. In 1954, the ACLU filed an amicus brief in the case of Brown v. Board of Education, which led to the ban on racial segregation in US public schools. Southern states instituted a McCarthyism-style witch-hunt against the NAACP, attempting to force it to disclose membership lists. The ACLU's fight against racism was not limited to segregation; in 1964, the ACLU provided key support to plaintiffs, primarily lower-income urban residents, in Reynolds v. Sims, which required states to establish the voting districts following the "one person, one vote" principle. Police misconduct The ACLU regularly tackled police misconduct issues, starting with the 1932 case Powell v. Alabama (right to an attorney), and including 1942's Betts v. Brady (right to an attorney), and 1951's Rochin v. California (involuntary stomach pumping). In the late 1940s, several ACLU local affiliates established permanent committees to address policing issues. During the 1950s and 1960s, the ACLU was responsible for substantially advancing the legal protections against police misconduct. In 1958, the Philadelphia affiliate was responsible for causing the City of Philadelphia to create the nation's first civilian police review board. In 1959, the Illinois affiliate published the first report in the nation, Secret Detention by the Chicago Police which documented unlawful detention by police. Some of the most notable ACLU successes came in the 1960s when the ACLU prevailed in a string of cases limiting the power of police to gather evidence; in 1961's Mapp v. Ohio, the Supreme court required states to obtain a warrant before searching a person's home. The Gideon v. Wainwright decision in 1963 provided legal representation to indigents. In 1964, the ACLU persuaded the Court, in Escobedo v. Illinois, to permit suspects to have an attorney present during questioning. And, in 1966, Miranda v. Arizona federal decision required police to notify suspects of their constitutional rights, which was later extended to juveniles in the following year's in re Gault (1967) federal ruling. Although many law enforcement officials criticized the ACLU for expanding the rights of suspects, police officers also used the services of the ACLU. For example, when the ACLU represented New York City policemen in their lawsuit, which objected to searches of their workplace lockers. In the late 1960s, civilian review boards in New York City and Philadelphia were abolished, over the ACLU's objection. Civil liberties revolution of the 1960s The 1960s was a tumultuous era in the United States, and public interest in civil liberties underwent explosive growth. Civil liberties actions in the 1960s were often led by young people and often employed tactics such as sit ins and marches. Protests were often peaceful but sometimes employed militant tactics. The ACLU played a central role in all major civil liberties debates of the 1960s, including new fields such as gay rights, prisoner's rights, abortion, rights of the poor, and the death penalty. Membership in the ACLU increased from 52,000 at the beginning of the decade to 104,000 in 1970. In 1960, there were affiliates in seven states, and by 1974 there were affiliates in 46 states. During the 1960s, the ACLU underwent a major transformation in tactics; it shifted emphasis from legal appeals (generally involving amicus briefs submitted to the Supreme Court) to direct representation of defendants when they were initially arrested. At the same time, the ACLU transformed its style from "disengaged and elitist" to "emotionally engaged". The ACLU published a breakthrough document in 1963, titled How Americans Protest, which was borne of frustration with the slow progress in battling racism, and which endorsed aggressive, even militant protest techniques. African-American protests in the South accelerated in the early 1960s, and the ACLU assisted at every step. After four African-American college students staged a sit-in in a segregated North Carolina department store, the sit-in movement gained momentum across the United States. During 1960–61, the ACLU defended black students arrested for demonstrating in North Carolina, Florida, and Louisiana. The ACLU also provided legal help for the Freedom Rides in 1961, the integration of the University of Mississippi, the Birmingham campaign in 1963, and the 1964 Freedom Summer. The NAACP was responsible for managing most sit-in related cases that made it to the Supreme Court, winning nearly every decision. But it fell to the ACLU and other legal volunteer efforts to provide legal representation to hundreds of protestorswhite and blackwho were arrested while protesting in the South. The ACLU joined with other civil liberties groups to form the Lawyers Constitutional Defense Committee (LCDC), which provided legal representation to many protesters. The ACLU provided the majority of the funding for the LCDC. In 1964, the ACLU opened up a major office in Atlanta, Georgia, dedicated to serving Southern issues. Much of the ACLU's progress in the South was due to Charles Morgan Jr., the charismatic leader of the Atlanta office. Morgan was responsible for desegregating juries (Whitus v. Georgia), desegregating prisons (Lee v. Washington), and reforming election laws. In 1966, the southern office successfully represented African-American congressman Julian Bond in Bond v. Floyd, after the Georgia House of Representatives refused to admit Bond into the legislature on the basis that he was an admitted pacifist opposed to the ongoing Vietnam War. Another widely publicized case defended by Morgan was that of Army doctor Howard Levy, who was convicted of refusing to train Green Berets. Despite raising the defense that the Green Berets were committing war crimes in Vietnam, Levy lost on appeal in Parker v. Levy, 417 US 733 (1974). In 1969, the ACLU won a significant victory for free speech when it defended Dick Gregory after he was arrested for peacefully protesting against the mayor of Chicago. The court ruled in Gregory v. Chicago that a speaker cannot be arrested for disturbing the peace when hostility is initiated by someone in the audience, as that would amount to a "heckler's veto". Vietnam War The ACLU was at the center of several legal aspects of the Vietnam war: defending draft resisters, challenging the constitutionality of the war, the potential impeachment of Richard Nixon, and the use of national security concerns to preemptively censor newspapers. David J. Miller was the first person prosecuted for burning his draft card. The New York affiliate of the ACLU appealed his 1965 conviction (367 F.2d 72: United States of America v. David J. Miller, 1966), but the Supreme Court refused to hear the appeal. Two years later, the Massachusetts affiliate took the card-burning case of David O'Brien to the Supreme Court, arguing that the act of burning was a form of symbolic speech, but the Supreme Court upheld the conviction in United States v. O'Brien, 391 US 367 (1968). Thirteen-year-old Junior High student Mary Tinker wore a black armband to school in 1965 to object to the war and was suspended from school. The ACLU appealed her case to the Supreme Court and won a victory in Tinker v. Des Moines Independent Community School District. This critical case established that the government may not establish "enclaves" such as schools or prisons where all rights are forfeited. The ACLU defended Sydney Street, who was arrested for burning an American flag to protest the reported assassination of civil rights leader James Meredith. In the Street v. New York decision, the court agreed with the ACLU that encouraging the country to abandon one of its national symbols was a constitutionally protected form of expression. The ACLU successfully defended Paul Cohen, who was arrested for wearing a jacket with the words "fuck the draft" on its back while he walked through the Los Angeles courthouse. The Supreme Court, in Cohen v. California, held that the vulgarity of the wording was essential to convey the intensity of the message. Non-war-related free speech rights were also advanced during the Vietnam war era; in 1969, the ACLU defended a Ku Klux Klan member who advocated long-term violence against the government, and the Supreme Court concurred with the ACLU's argument in the landmark decision Brandenburg v. Ohio, which held that only speech which advocated imminent violence could be outlawed. A major crisis gripped the ACLU in 1968 when a debate erupted over whether to defend Benjamin Spock and the Boston Five against federal charges that they encouraged draftees to avoid the draft. The ACLU board was deeply split over whether to defend the activists; half the board harbored anti-war sentiments and felt that the ACLU should lend its resources to the cause of the Boston Five. The other half of the board believed that civil liberties were not at stake and the ACLU would be taking a political stance. Behind the debate was the longstanding ACLU tradition that it was politically impartial and provided legal advice without regard to the defendants' political views. The board finally agreed to a compromise solution that permitted the ACLU to defend the anti-war activists without endorsing the activist's political views. Some critics of the ACLU suggest that the ACLU became a partisan political organization following the Spock case. After the Kent State shootings in 1970, ACLU leaders took another step toward politics by passing a resolution condemning the Vietnam War. The resolution was based on various legal arguments, including civil liberties violations and claiming that the war was illegal. Also in 1968, the ACLU held an internal symposium to discuss its dual roles: providing "direct" legal support (defense for accused in their initial trial, benefiting only the individual defendant) and appellate support (providing amicus briefs during the appeal process, to establish widespread legal precedent). Historically, the ACLU was known for its appellate work, which led to landmark Supreme Court decisions, but by 1968, 90% of the ACLU's legal activities involved direct representation. The symposium concluded that both roles were valid for the ACLU. 1970s and 1980s Watergate era The ACLU supported The New York Times in its 1971 suit against the government, requesting permission to publish the Pentagon Papers. The court upheld the Times and ACLU in the New York Times Co. v. United States ruling, which held that the government could not preemptively prohibit the publication of classified information and had to wait until after it was published to take action. On September 30, 1973, the ACLU became first national organization to publicly call for the impeachment and removal from office of President Richard Nixon. Six civil liberties violations were cited as grounds: "specific proved violations of the rights of political dissent; usurpation of Congressional war‐making powers; establishment of a personal secret police which committed crimes; attempted interference in the trial of Daniel Ellsberg; distortion of the system of justice and perversion of other Federal agencies". One month later, after the House of Representatives began an impeachment inquiry against him, the organization released a 56‐page handbook detailing "17 things citizens could do to bring about the impeachment of President Nixon". This resolution, when placed beside the earlier resolution opposing the Vietnam war, convinced many ACLU critics, particularly conservatives, that the organization had transformed into a liberal political organization. Enclaves and new civil liberties The decade from 1965 to 1975 saw an expansion of civil liberties. Administratively, the ACLU responded by appointing Aryeh Neier to take over from Pemberton as executive director in 1970. Neier embarked on an ambitious program to expand the ACLU; he created the ACLU Foundation to raise funds and created several new programs to focus the ACLU's legal efforts. By 1974, ACLU membership had reached 275,000. During those years, the ACLU worked to expand legal rights in three directions: new rights for persons within government-run "enclaves", new rights for members of what it called "victim groups", and privacy rights for citizens in general. At the same time, the organization grew substantially. The ACLU helped develop the field of constitutional law that governs "enclaves", which are groups of persons that live in conditions under government control. Enclaves include mental hospital patients, military members, prisoners, and students (while at school). The term enclave originated with Supreme Court justice Abe Fortas's use of the phrase "schools may not be enclaves of totalitarianism" in the Tinker v. Des Moines decision. The ACLU initiated the legal field of student's rights with the Tinker v. Des Moines case and expanded it with cases such as Goss v. Lopez, which required schools to provide students an opportunity to appeal suspensions. As early as 1945, the ACLU had taken a stand to protect the rights of the mentally ill when it drafted a model statute governing mental commitments. In the 1960s, the ACLU opposed involuntary commitments unless it could be demonstrated that the person was a danger to himself or the community. In the landmark 1975 O'Connor v. Donaldson decision, the ACLU represented a non-violent mental health patient who had been confined against his will for 15 years and persuaded the Supreme Court to rule such involuntary confinements illegal. The ACLU has also defended the rights of mentally ill individuals who are not dangerous but create disturbances. The New York chapter of the ACLU defended Billie Boggs, a woman with mental illness who exposed herself and defecated and urinated in public. Before 1960, prisoners had virtually no recourse to the court system because courts considered prisoners to have no civil rights. That changed in the late 1950s, when the ACLU began representing prisoners subject to police brutality or deprived of religious reading material. In 1968, the ACLU successfully sued to desegregate the Alabama prison system; in 1969, the New York affiliate adopted a project to represent prisoners in New York prisons. Private attorney Phil Hirschkop discovered degrading conditions in Virginia prisons following the Virginia State Penitentiary strike and won an important victory in 1971's Landman v. Royster which prohibited Virginia from treating prisoners in inhumane ways. In 1972, the ACLU consolidated several prison rights efforts across the nation and created the National Prison Project. The ACLU's efforts led to landmark cases such as Ruiz v. Estelle (requiring reform of the Texas prison system), and in 1996 US Congress enacted the Prison Litigation Reform Act (PLRA) which codified prisoners' rights. Victim groups During the 1960s and 1970s, the ACLU expanded its scope to include what it referred to as "victim groups", namely women, the poor, and homosexuals. Heeding the call of female members, the ACLU endorsed the Equal Rights Amendment in 1970 and created the Women's Rights Project in 1971. The Women's Rights Project dominated the legal field, handling more than twice as many cases as the National Organization for Women, including breakthrough cases such as Reed v. Reed, Frontiero v. Richardson, and Taylor v. Louisiana. ACLU leader Harriet Pilpel raised the issue of the rights of homosexuals in 1964, and two years later, the ACLU formally endorsed gay rights. In 1972, ACLU cooperating attorneys in Oregon filed the first federal civil rights case involving a claim of unconstitutional discrimination against a gay or lesbian public school teacher. The US District Court held that a state statute that authorized school districts to fire teachers for "immorality" was unconstitutionally vague, and awarded monetary damages to the teacher. The court refused to reinstate the teacher, and the Ninth Circuit Court of Appeals affirmed that refusal by a 2-to-1 vote. Burton v. Cascade School District, 353 F. Supp. 254 (D. Or. 1972), aff'd 512 F.2d 850 (1975). In 1973, the ACLU created the Sexual Privacy Project (later the Gay and Lesbian Rights Project), which combated discrimination against homosexuals. This support continued into the 2000s. For example, after then-Senator Larry Craig was arrested for soliciting sex in a public restroom in 2007, the ACLU wrote an amicus brief for Craig, saying that sex between consenting adults in public places was protected under privacy rights. The rights of the poor were another area that the ACLU expanded. In 1966 and again in 1968, activists within the ACLU encouraged the organization to adopt a policy overhauling the welfare system and guaranteeing low-income families a baseline income; but the ACLU board did not approve the proposals. However, the ACLU played a key role in the 1968 King v. Smith decision, where the Supreme Court ruled that welfare benefits for children could not be denied by a state simply because the mother cohabited with a boyfriend. Reproductive Freedom Project The ACLU founded the Reproductive Freedom Project in 1974 to defend individuals the government obstructs in cases involving access to abortions, birth control, or sexual education. According to its mission statement, the project works to provide access to reproductive health care for individuals. The project also opposes abstinence-only sex education, arguing that it promotes an unwillingness to use contraceptives. In 1980, the Project filed Poe v. Lynchburg Training School & Hospital which attempted to overturn Buck v. Bell, the 1927 US Supreme Court decision which had allowed the Commonwealth of Virginia to legally sterilize persons it deemed to be mentally defective without their permission. Though the Court did not overturn Buck v.Bell, in 1985, the state agreed to provide counseling and medical treatment to the survivors among the 7,200 to 8,300 people sterilized between 1927 and 1979. In 1977, the ACLU took part in and litigated Walker v. Pierce, the federal circuit court case that led to federal regulations to prevent Medicaid patients from being sterilized without their knowledge or consent. In 1981–1990, the Project litigated Hodgson v. Minnesota, which resulted in the Supreme Court overturning a state law requiring both parents to be notified before a minor could legally have an abortion. In the 1990s, the Project provided legal assistance and resource kits to those who were being challenged for educating about sexuality and AIDS. In 1995, the Project filed an amicus brief in Curtis v. School Committee of Falmouth, which allowed for the distribution of condoms in a public school. The Reproductive Freedom Project focuses on three ideas: (1) to "reverse the shortage of trained abortion providers throughout the country" (2) to "block state and federal welfare "reform" proposals that cut off benefits for children who are born to women already receiving welfare, unmarried women, or teenagers" and (3) to "stop the elimination of vital reproductive health services as a result of hospital mergers and health care networks". The Project proposes to achieve these goals through legal action and litigation. Privacy The right to privacy is not explicitly identified in the US Constitution, but the ACLU led the charge to establish such rights in the indecisive Poe v. Ullman (1961) case, which addressed a state statute outlawing contraception. The issue arose again in Griswold v. Connecticut (1965), and this time the Supreme Court adopted the ACLU's position and formally declared a right to privacy. The New York affiliate of the ACLU pushed to eliminate anti-abortion laws starting in 1964, a year before Griswold was decided; in 1967 the ACLU itself formally adopted the right to abortion as a policy. The ACLU led the defense in United States v. Vuitch (1971), which expanded the right of physicians to determine when abortions were necessary. These efforts culminated in one of the most controversial Supreme Court decisions, Roe v. Wade (1973), which legalized abortion throughout the United States. The ACLU successfully argued against state bans on interracial marriage, in the case of Loving v. Virginia (1967). Related to privacy, the ACLU engaged in several battles to ensure that government records about individuals were kept private and to give individuals the right to review their records. The ACLU supported several measures, including the 1970 Fair Credit Reporting Act, which required credit agencies to divulge credit information to individuals; the 1973 Family Educational Rights and Privacy Act, which provided students the right to access their records; and the 1974 Privacy Act, which prevented the federal government from disclosing personal information without good cause. Allegations of bias In the early 1970s, conservatives and libertarians began to criticize the ACLU for being too political and too liberal. Legal scholar Joseph W. Bishop wrote that the ACLU's trend to partisanship started with its defense of Spock's anti-war protests. Critics also blamed the ACLU for encouraging the Supreme Court to embrace judicial activism. Critics claimed that the ACLU's support of controversial decisions like Roe v. Wade and Griswold v. Connecticut violated the intention of the authors of the Bill of Rights. The ACLU became an issue in the 1988 presidential campaign, when Republican candidate George H. W. Bush accused Democratic candidate Michael Dukakis (a member of the ACLU) of being a "card carrying member of the ACLU". The Skokie case In 1977, the National Socialist Party of America, led by Frank Collin, applied to the town of Skokie, Illinois, for a permit to hold a demonstration in the town park. Skokie at the time had a majority population of Jews, totaling 40,000 of 70,000 citizens, some of whom were survivors of Nazi concentration camps. Skokie refused to grant the NSPA a permit and passed ordinances against hate speech and military wear, in addition to requiring an insurance bond. Skokie's Village Council ordered village attorney, Harvey Schwartz, to seek an injunction to stop the demonstration. The ACLU assisted Collin and appealed to federal court, eventually prevailing in NSPA v. Village of Skokie The Skokie case was heavily publicized across America, partially because Jewish groups such as the Jewish Defense League and Anti Defamation League strenuously objected to the demonstration, leading many members of the ACLU to cancel their memberships. The Illinois affiliate of the ACLU lost about 25% of its membership and nearly one-third of its budget. The financial strain from the controversy led to layoffs at local chapters. After the membership crisis died down, the ACLU sent out a fund-raising appeal which explained their rationale for the Skokie case and raised over $500,000 ($ in dollars). Reagan era The inauguration of Ronald Reagan as president in 1981 ushered in an eight-year period of conservative leadership in the US government. Under Reagan's leadership, the government pushed a conservative social agenda. Fifty years after the Scopes trial, the ACLU found itself fighting another classroom case, the Arkansas 1981 creationism statute, which required schools to teach the biblical account of creation as a scientific alternative to evolution. The ACLU won the case in the McLean v. Arkansas decision. In 1982, the ACLU became involved in a case involving the distribution of child pornography (New York v. Ferber). In an amicus brief, the ACLU argued that child pornography that violates the three prong obscenity test should be outlawed. However, the law was overly restrictive because it banned artistic displays and non-obscene material. The court did not adopt the ACLU's position. During the 1988 presidential election, Vice President George H. W. Bush noted that his opponent Massachusetts Governor Michael Dukakis had described himself as a "card-carrying member of the ACLU" and used that as evidence that Dukakis was "a strong, passionate liberal" and "out of the mainstream". The phrase subsequently was used by the organization in an advertising campaign. 1990s In 1990, the ACLU defended Lieutenant Colonel Oliver North, whose conviction was tainted by coerced testimonya violation of his Fifth Amendment rightsduring the Iran–Contra affair, where Oliver North was involved in illegal weapons sales to Iran to illegally fund the Contra guerillas. In 1997, ruling unanimously in the case of Reno v. American Civil Liberties Union, the Supreme Court voided the anti-indecency provisions of the Communications Decency Act (the CDA), finding they violated the freedom of speech provisions of the First Amendment. In their decision, the Supreme Court held that the CDA's "use of the undefined terms 'indecent' and 'patently offensive' will provoke uncertainty among speakers about how the two standards relate to each other and just what they mean." In 2000, Marvin Johnson, a legislative counsel for the ACLU, stated that proposed anti-spam legislation infringed on free speech by denying anonymity and by forcing spam to be labeled as such, "Standardized labeling is compelled speech." He also stated, "It's relatively simple to click and delete." The debate found the ACLU joining with the Direct Marketing Association and the Center for Democracy and Technology in 2000 in criticizing a bipartisan bill in the House of Representatives. As early as 1997, the ACLU had taken a strong position that nearly all spam legislation was improper, although it has supported "opt-out" requirements in some cases. The ACLU opposed the 2003 CAN-SPAM act suggesting that it could have a chilling effect on speech in cyberspace. It has been criticized for this position. In November 2000, 15 African-American residents of Hearne, Texas, were indicted on drug charges after being arrested in a series of "drug sweeps". The ACLU filed a class-action lawsuit, Kelly v. Paschall, on their behalf, alleging that the arrests were unlawful. The ACLU contended that 15 percent of Hearne's male African-American population aged 18 to 34 were arrested based only on the "uncorroborated word of a single unreliable confidential informant coerced by police to make cases". On May 11, 2005, the ACLU and Robertson County announced a confidential settlement of the lawsuit, an outcome which "both sides stated that they were satisfied with". The District Attorney dismissed the charges against the plaintiffs of the suit. The 2009 film American Violet depicts this case. In 2000, the ACLU's Massachusetts affiliate represented the North American Man Boy Love Association (NAMBLA), on first amendment grounds, in the Curley v. NAMBLA wrongful death civil suit. The organization was sued because a man who raped and murdered a child had visited the NAMBLA website. Also in 2000, the ACLU lost the Boy Scouts of America v. Dale case, which had asked the Supreme Court to require the Boy Scouts of America to drop their policy of prohibiting homosexuals from becoming Boy Scout leaders. 21st century Free speech In 2006, the ACLU of Washington State joined with a pro-gun rights organization, the Second Amendment Foundation, and prevailed in a lawsuit against the North Central Regional Library District (NCRL) in Washington for its policy of refusing to disable restrictions upon an adult patron's request. Library patrons attempting to access pro-gun web sites were blocked, and the library refused to remove the blocks. In 2012, the ACLU sued the same library system for refusing to disable temporarily, at the request of an adult patron, Internet filters which blocked access to Google Images. In 2006, the ACLU challenged a Missouri law prohibiting picketing outside veterans' funerals. The suit was filed in support of the Westboro Baptist Church and Shirley Phelps-Roper, who were threatened with arrest. The Westboro Baptist Church is well known for its picket signs that contain messages such as "God Hates Fags", "Thank God for Dead Soldiers", and "Thank God for 9/11". The ACLU issued a statement calling the legislation a "law that infringes on Shirley Phelps-Roper's rights to religious liberty and free speech". The ACLU prevailed in the lawsuit. The ACLU argued in an amicus brief to the Supreme Court that a decision on the constitutionality of Massachusetts law required the consideration of additional evidence because lower courts have undervalued the right to engage in sidewalk counseling. The law prohibited sidewalk counselors from approaching women outside abortion facilities and offering them alternatives to abortion but allowed escorts to speak with them and accompany them into the building. In overturning the law in McCullen v. Coakley, the Supreme Court unanimously ruled that it violated the counselors' freedom of speech and that it was viewpoint discrimination. In 2009, the ACLU filed an amicus brief in Citizens United v. FEC, arguing that the Bipartisan Campaign Reform Act of 2002 violated the First Amendment right to free speech by curtailing political speech. This stance on the landmark Citizens United case caused considerable disagreement within the organization, resulting in a discussion about its future stance during a quarterly board meeting in 2010. On March 27, 2012, the ACLU reaffirmed its stance in support of the Supreme Court's Citizens United ruling, at the same time voicing support for expanded public financing of election campaigns and stating the organization would firmly oppose any future constitutional amendment limiting free speech. In 2012, the ACLU filed suit on behalf of the Ku Klux Klan of Georgia, claiming that the KKK was unfairly rejected from the state's "Adopt-a-Highway" program. The ACLU prevailed in the lawsuit. Waning interest in defending white supremacists' first amendment rights Beginning in 2017, some individuals claimed the ACLU was reducing its support of unpopular free speech (specifically by declining to defend speech made by conservatives) in favor of identity politics, political correctness, and progressivism. Former ACLU director Ira Glasser stated that "the ACLU might not take the Skokie case today." In the 2020 documentary Mighty Ira, which chronicles Glasser's life and career at the ACLU, Glasser says he would defend the ACLU's decision to take the Skokie case again today if needed. One basis of these allegations was a 2017 statement made by the ACLU president to a reporter after the death of a counter-protester during the 2017 Unite the Right rally in Virginia, where Romero told a reporter that the ACLU would no longer support legal cases of activists that wish to carry guns at their protests. Another basis for these claims was an internal ACLU memo dated June 2018, discussing factors to evaluate when deciding whether or not to take a case. The memo listed several factors to consider, including "the extent to which the speech may assist in advancing the goals of white supremacists or others whose views are contrary to our values". Some analysts viewed this as a retreat from the ACLU's historically strong support of first amendment rights, regardless of whether minorities were negatively impacted by the speech, citing the ACLU's past support for certain KKK and Nazi legal cases. The memo's authors stated that the memo did not define a change in official ACLU policy, but was intended as a guideline to assist ACLU affiliates in deciding which cases to take. In 2021, the ACLU responded to the criticisms by denying that they are reducing their support for unpopular First Amendment causes and listing 27 cases from 2017 to 2021 where the ACLU supported a party holding an unpopular or repugnant viewpoint. The cases included one which challenged college restrictions on hate speech; a case defending a Catholic school's right to discriminate in hiring; and a case that defended antisemitic protesters who marched outside a synagogue. LGBTQ issues In March 2004, the ACLU, along with Lambda Legal and the National Center for Lesbian Rights, sued the state of California on behalf of six same-sex couples who were denied marriage licenses. That case, Woo v. Lockyer, was eventually consolidated into In re Marriage Cases, the California Supreme Court case which led to same-sex marriage being available in that state from June 16, 2008, until Proposition 8 was passed on November 4, 2008. The ACLU, Lambda Legal and the National Center for Lesbian Rights then challenged Proposition 8 and won. In 2010, the ACLU of Illinois was inducted into the Chicago Gay and Lesbian Hall of Fame as a Friend of the Community. In 2011, the ACLU started its Don't Filter Me project, countering LGBT-related Internet censorship in public schools in the United States. On January 7, 2013, the ACLU settled with the federal government in Collins v. United States that provided for the payment of full separation pay to servicemembers discharged under "don't ask, don't tell" since November 10, 2004, who had previously been granted only half that. Some 181 were expected to receive about $13,000 each. In 2021, the ACLU tweeted a quote by Ruth Bader Ginsburg on the subject of pregnancy, replacing gender-specific words with bracketed gender-neutral words. The president of the ACLU later apologized for the changes to the quote, explaining that it was a good-faith mistake by the ACLU's media team, attempting to address the fact that there are people who seek abortions who do not identify as women. In 2021, the ACLU filed a brief siding with a school district that had a policy of using preferred pronouns for transgender students. Some analysts felt this was a retreat from the ACLU's historical defense of the first amendment because the ACLU was opposing the teachers who were disciplined for refusing to use the preferred pronouns. Second amendment In light of the Supreme Court's Heller decision recognizing that the Constitution protects an individual right to bear arms, ACLU of Nevada took a position of supporting "the individual's right to bear arms subject to constitutionally permissible regulations" and pledged to "defend this right as it defends other constitutional rights". In 2021, the ACLU supported the position that the Second Amendment was originally written to ensure that Southern states could use militias to suppress slave uprisings, and that anti-Blackness ensured its inclusion in the Bill of Rights. Anti-terrorism issues After the September 11 attacks, the federal government instituted a broad range of new measures to combat terrorism, including the passage of the Patriot Act. The ACLU challenged many of the measures, claiming that they violated rights regarding due process, privacy, illegal searches, and cruel and unusual punishment. An ACLU policy statement states: During the ensuing debate regarding the proper balance of civil liberties and security, the membership of the ACLU increased by 20%, bringing the group's total enrollment to 330,000. The growth continued, and by August 2008 ACLU membership was greater than 500,000. It remained at that level through 2011. The ACLU has been a vocal opponent of the Patriot Act of 2001, the PATRIOT 2 Act of 2003, and associated legislation made in response to the threat of domestic terrorism. In response to a requirement of the USA PATRIOT Act, the ACLU withdrew from the Combined Federal Campaign charity drive. The campaign required ACLU employees to be checked against a federal anti-terrorism watch list. The ACLU has stated that it would "reject $500,000 in contributions from private individuals rather than submit to a government 'blacklist' policy". In 2004, the ACLU sued the federal government in American Civil Liberties Union v. Ashcroft on behalf of Nicholas Merrill, owner of an Internet service provider. Under the provisions of the Patriot Act, the government had issued national security letters to Merrill to compel him to provide private Internet access information from some of his customers. In addition, the government placed a gag order on Merrill, forbidding him from discussing the matter with anyone. In January 2006, the ACLU filed a lawsuit, ACLU v. NSA, in a federal district court in Michigan, challenging government spying in the NSA warrantless surveillance controversy. On August 17, 2006, that court ruled that the warrantless wiretapping program was unconstitutional and ordered it ended immediately. However, the order was stayed pending an appeal. The Bush administration did suspend the program while the appeal was being heard. In February 2008, the US Supreme Court turned down an appeal from the ACLU to let it pursue a lawsuit against the program that began shortly after the September 11 terror attacks. The ACLU and other organizations also filed separate lawsuits against telecommunications companies. The ACLU filed a lawsuit in Illinois (Terkel v. AT&T), which was dismissed because of the state secrets privilege and two others in California requesting injunctions against AT&T and Verizon. On August 10, 2006, the lawsuits against the telecommunications companies were transferred to a federal judge in San Francisco. The ACLU represents a Muslim-American who was detained but never accused of a crime in Ashcroft v. al-Kidd, a civil suit against former Attorney General John Ashcroft. In January 2010, the American military released the names of 645 detainees held at the Bagram Theater Internment Facility in Afghanistan, modifying its long-held position against publicizing such information. This list was prompted by a Freedom of Information Act lawsuit filed in September 2009 by the ACLU, whose lawyers had also requested detailed information about conditions, rules, and regulations. The ACLU has also criticized targeted killings of American citizens who fight against the United States. In 2011, the ACLU criticized the killing of radical Muslim cleric Anwar al-Awlaki on the basis that it was a violation of his Fifth Amendment right not to be deprived of life, liberty, or property without due process of law. On August 10, 2020, in an opinion article for USA Today by Anthony D. Romero, the ACLU called for the dismantling of the United States Department of Homeland Security over the deployment of federal forces in July 2020 during the George Floyd protests. On August 26, 2020, the ACLU filed a lawsuit on behalf of seven protesters and three veterans following the protests in Portland, Oregon, which accused the Trump Administration of using excessive force and unlawful arrests with federal officers. Trump administration Following Donald Trump's election as president on November 8, 2016, the ACLU responded on Twitter by saying: "Should President-elect Donald Trump attempt to implement his unconstitutional campaign promises, we'll see him in court." On January 27, 2017, President Trump signed an executive order indefinitely barring "Syrian refugees from entering the United States, suspended all refugee admissions for 120 days and blocked citizens of seven Muslim-majority countries, refugees or otherwise, from entering the United States for 90 days: Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen". The ACLU responded by filing a lawsuit against the ban on behalf of Hameed Khalid Darweesh and Haider Sameer Abdulkhaleq Alshawi, who had been detained at JFK International Airport. On January 28, 2017, District Court Judge Ann Donnelly granted a temporary injunction against the immigration order, saying it was difficult to see any harm from allowing the newly arrived immigrants to remain in the country. In response to Trump's order, the ACLU raised more than $24 million from more than 350,000 individual online donations in two days. This amounted to six times what the ACLU normally receives in online donations in a year. Celebrities donating included Chris Sacca (who offered to match other people's donations and ultimately gave $150,000), Rosie O'Donnell, Judd Apatow, Sia, John Legend, and Adele. The number of members of the ACLU doubled in the time from the election to end of January to 1 million. Grants and contributions increased from US$106,628,381 reported by the 2016 year-end income statement to $274,104,575 by the 2017 year-end statement. The segment's primary revenue source came from individual contributions in response to the Trump presidency's infringements on civil liberties. The surge in donations more than doubled the total support and revenue of the non-profit organization year over year from 2016 to 2017. Besides filing more lawsuits than during previous presidential administrations, the ACLU has spent more money on advertisements and messaging as well, weighing in on elections and pressing political concerns. This increased public profile has drawn some accusations that the organization has become more politically partisan than in previous decades. Miscellaneous During the 2004 trial regarding allegations of Rush Limbaugh's drug abuse, the ACLU argued that his privacy should not have been compromised by allowing law enforcement examination of his medical records. In June 2004, the school district in Dover, Pennsylvania, required that its high school biology students listen to a statement that asserted that the theory of evolution is not fact and mentioning intelligent design as an alternative theory. Several parents called the ACLU to complain because they believed that the school was promoting a religious idea in the classroom and violating the Establishment Clause of the First Amendment. The ACLU, joined by Americans United for Separation of Church and State, represented the parents in a lawsuit against the school district. After a lengthy trial, Judge John E. Jones III ruled in favor of the parents in the Kitzmiller v. Dover Area School District decision, finding that intelligent design is not science and permanently forbidding the Dover school system from teaching intelligent design in science classes. In April 2006, Edward Jones and the ACLU sued the City of Los Angeles, on behalf of Robert Lee Purrie and five other homeless people, for the city's violation of the 8th and 14th Amendments to the US Constitution, and Article I, sections 7 and 17 of the California Constitution (supporting due process and equal protection, and prohibiting cruel and unusual punishment). The Court ruled in favor of the ACLU, stating that "the LAPD cannot arrest people for sitting, lying, or sleeping on public sidewalks in Skid Row." Enforcement of section 41.18(d) 24 hours a day against persons with nowhere else to sit, lie, or sleep other than on public streets and sidewalks is breaking these amendments. The Court said the anti-camping ordinance is "one of the most restrictive municipal laws regulating public spaces in the United States". Jones and the ACLU wanted a compromise in which the LAPD is barred from enforcing section 41.18(d) (arrest, seizure, and imprisonment) in Skid Row between 9:00 p.m. and 6:30 am. The compromise plan permitted the homeless to sleep on the sidewalk, provided they were not "within 10 feet of any business or residential entrance" and only between these hours. One of the motivations for the compromise was the shortage of space in the prison system. Downtown development business interests and the Central City Association (CCA) were against the settlement. Police Chief William Bratton said the case had slowed the police effort to fight crime and clean up Skid Row and that when he was allowed to clean up Skid Row, real estate profited. On September 20, 2006, the Los Angeles City Council voted to reject the compromise. On October 3, 2006, police arrested Skid Row's transients for sleeping on the streets for the first time in months. In 2009, the Oregon ACLU opposed changing state law to permit teachers to wear religious clothing in classrooms, citing the separation of church and state principles. The ACLU's efforts were not successful. In 2018, the ACLU conceived and ghostwrote an op-ed in The Washington Post in which Amber Heard accused her ex-husband Johnny Depp of domestic abuse, leading Depp to sue Heard for defamation over the op-ed in the 2022 trial Depp v. Heard. The ACLU testified in the trial that they wrote the op-ed in exchange for a $3.5 million donation pledge from Heard, and timed its release to capitalize on the press from Heard's newly released film Aquaman. The ACLU demanded $86,000 from Depp for the cost of producing documents for the case. At the end of the trial, the jury ruled that Heard had defamed Depp with actual malice in all three counts related to the Washington Post op-ed. In June 2020, the ACLU sued the federal government for denying Paycheck Protection Program loans to business owners with criminal backgrounds. See also American Civil Rights Union British Columbia Civil Liberties Association Canadian Civil Liberties Association Foundation for Individual Rights and Expression (FIRE) Institute for Justice Liberty, a British equivalent List of court cases involving the American Civil Liberties Union National Emergency Civil Liberties Committee New York Civil Liberties Union Political freedom Southern Poverty Law Center Citations General and cited references Bodenhamer, David, and Ely, James, Editors (2008). The Bill of Rights in Modern America, second edition. Indiana University Press. . Donohue, William (1985). The Politics of the American Civil Liberties Union. Transaction Books. . Kaminer, Wendy (2009). Worst Instincts: Cowardice, Conformity, and the ACLU. Beacon Press. . A dissident member of the ACLU criticizes its post-9/11 actions as betraying the core principles of its founders. Lamson, Peggy (1976). Roger Baldwin: Founder of the American Civil Liberties Union. Houghton Mifflin Company. . Walker, Samuel (1990). In Defense of American Liberties: A History of the ACLU. Oxford University Press. . Further reading Klein Woody, and Baldwin, Roger Nash (2006). Liberties lost: the endangered legacy of the ACLU. Greenwood Publishing Group, 2006. A collection of essays by Baldwin, each accompanied by commentary from a modern analyst. Krannawitter, Thomas L. and Palm, Daniel C. (2005). A Nation Under God?: The ACLU and religion in American politics. Rowman & Littlefield. Sears, Alan, and Osten, Craig (2005). The ACLU vs America: Exposing the Agenda to Redefine Moral Values. B&H Publishing Group. Smith, Frank LaGard (1996). ACLU: The Devil's Advocate: The Seduction of Civil Liberties in America. Marcon Publishers. Archives American Civil Liberties Union of Southern California records. 754 boxes. UCLA Library Special Collections. American Civil Liberties Union of Washington. 1917–2019. 188.31 cubic feet (including 13 microfilm reels and 1 videocassette) plus 62 cartons and 2 rolled posters. Labor Archives of Washington. University of Washington Special Collections. American Civil Liberties Union of Michigan: Detroit Branch Records 1952–1966. This collection documents the early years of the Detroit ACLU branch. The collection contains documents related to academic freedom; censorship; church and state; civil liberties; police brutality; HUAC; and legal assistance to prisoners. Walter P. Reuther Library, Detroit, Michigan. American Civil Liberties Union of Oakland County, Michigan 1970–1984. This collection illustrates that the branch was formed to address Oakland County jail conditions, lie detector use, senior housing rights, and attempts to reinstate the death penalty. Walter P. Reuther Library, Detroit, Michigan. Selected works sponsored or published by the ACLU Annual Report – American Civil Liberties Union, American Civil Liberties Union, 1921. Black Justice, ACLU, 1931. How Americans Protest, American Civil Liberties Union, 1963. Secret detention by the Chicago police: a report, American Civil Liberties Union, 1959. Report on lawlessness in law enforcement, Wickersham Commission, Patterson Smith, 1931. This report was written by the ACLU but published under the auspices of the Wickersham Commission. Miller, Merle, (1952), The Judges and the Judged, Doubleday. ACLU organization records, 1947–1995. Princeton University Library, Mudd Manuscript Library. The Dangers of Domestic Spying by Federal Law Enforcement, American Civil Liberties Union, 2002. Engines of Liberty: The Power of Citizen Activists to Make Constitutional Law, David D. Cole, 2016 External links American Civil Liberties Union Records, Princeton University. Document archive 1917–1950, including the history of the ACLU. Debs Pamphlet Collection, Indiana State University Library. An array of annual ACLU reports in PDF. List of 100 most important ACLU victories, New Hampshire Civil Liberties Union. De-classified FBI records on the ACLU 1920 establishments in the United States 501(c)(4) nonprofit organizations Civil liberties advocacy groups in the United States Drug policy reform Government watchdog groups in the United States Immigration political advocacy groups in the United States Legal advocacy organizations in the United States LGBT political advocacy groups in the United States Non-profit organizations based in New York City Nonpartisan organizations in the United States Organizations established in 1920 Privacy in the United States Privacy organizations

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https://en.wikipedia.org/wiki/Adobe%20Inc.

Adobe Inc.

Adobe Inc. ( ), formerly Adobe Systems Incorporated, is an American multinational computer software company incorporated in Delaware and headquartered in San Jose, California. It has historically specialized in software for the creation and publication of a wide range of content, including graphics, photography, illustration, animation, multimedia/video, motion pictures, and print. Its flagship products include Adobe Photoshop image editing software; Adobe Illustrator vector-based illustration software; Adobe Acrobat Reader and the Portable Document Format (PDF); and a host of tools primarily for audio-visual content creation, editing and publishing. Adobe offered a bundled solution of its products named Adobe Creative Suite, which evolved into a subscription software as a service (SaaS) offering named Adobe Creative Cloud. The company also expanded into digital marketing software and in 2021 was considered one of the top global leaders in Customer Experience Management (CXM). Adobe was founded in December 1982 by John Warnock and Charles Geschke, who established the company after leaving Xerox PARC to develop and sell the PostScript page description language. In 1985, Apple Computer licensed PostScript for use in its LaserWriter printers, which helped spark the desktop publishing revolution. Adobe later developed animation and multimedia through its acquisition of Macromedia, from which it acquired Macromedia Flash; video editing and compositing software with Adobe Premiere, later known as Adobe Premiere Pro; low-code web development with Adobe Muse; and a suite of software for digital marketing management. As of 2022, Adobe has more than 26,000 employees worldwide. Adobe also has major development operations in the United States in Newton, New York City, Arden Hills, Lehi, Seattle, Austin and San Francisco. It also has major development operations in Noida and Bangalore in India. History The company was started in John Warnock's garage. The name of the company, Adobe, comes from Adobe Creek in Los Altos, California, a stream which ran behind Warnock's house. That creek is so named because of the type of clay found there (Adobe being a Spanish word for Mudbrick), which alludes to the creative nature of the company's software. Adobe's corporate logo features a stylized "A" and was designed by graphic designer Marva Warnock, John Warnock's wife. In 2020, the company updated its visual identity, including updating its logo to a single color, an all-red logo. Steve Jobs attempted to buy the company for $5 million in 1982, but Warnock and Geschke refused. Their investors urged them to work something out with Jobs, so they agreed to sell him shares worth 19 percent of the company. Jobs paid a five-times multiple of their company's valuation at the time, plus a five-year license fee for PostScript, in advance. The purchase and advance made Adobe the first company in the history of Silicon Valley to become profitable in its first year. Warnock and Geschke considered various business options including a copy-service business and a turnkey system for office printing. Then they chose to focus on developing specialized printing software and created the Adobe PostScript page description language. PostScript was the first truly international standard for computer printing as it included algorithms describing the letter-forms of many languages. Adobe added kanji printer products in 1988. Warnock and Geschke were also able to bolster the credibility of PostScript by connecting with a typesetting manufacturer. They weren't able to work with Compugraphic, but then worked with Linotype to license the Helvetica and Times Roman fonts (through the Linotron 100). By 1987, PostScript had become the industry-standard printer language with more than 400 third-party software programs and licensing agreements with 19 printer companies. Warnock described the language as "extensible" in its ability to apply graphic arts standards to office printing. Adobe's first products after PostScript were digital fonts which they released in a proprietary format called Type 1, worked on by Bill Paxton after he left Stanford. Apple subsequently developed a competing standard, TrueType, which provided full scalability and precise control of the pixel pattern created by the font's outlines, and licensed it to Microsoft. In the mid-1980s, Adobe entered the consumer software market with Illustrator, a vector-based drawing program for the Apple Macintosh. Illustrator, which grew out of the firm's in-house font-development software, helped popularize PostScript-enabled laser printers. Adobe entered the NASDAQ Composite index in August 1986. Its revenue has grown from roughly $1 billion in 1999 to $4 billion in 2012. Adobe's fiscal years run from December to November. For example, the 2020 fiscal year ended on November 27, 2020. In 1989, Adobe introduced what was to become its flagship product, a graphics editing program for the Macintosh called Photoshop. Stable and full-featured, Photoshop 1.0 was ably marketed by Adobe and soon dominated the market. In 1993, Adobe introduced PDF, the Portable Document Format, and its Adobe Acrobat and Reader software. PDF is now an International Standard: ISO 32000-1:2008. In December 1991, Adobe released Adobe Premiere, which Adobe rebranded as Adobe Premiere Pro in 2003. In 1992, Adobe acquired OCR Systems, Inc. In 1994, Adobe acquired the Aldus Corporation and added PageMaker and After Effects to its product line later in the year; it also controls the TIFF file format. In the same year, Adobe acquired LaserTools Corp and Compution Inc. In 1995, Adobe added FrameMaker, the long-document DTP application, to its product line after Adobe acquired Frame Technology Corp. In 1996, Adobe acquired Ares Software Corp. In 2002, Adobe acquired Canadian company Accelio (also known as JetForm). In May 2003, Adobe purchased audio editing and multitrack recording software Cool Edit Pro from Syntrillium Software for $16.5 million, as well as a large loop library called "Loopology". Adobe then renamed Cool Edit Pro to "Adobe Audition" and included it in the Creative Suite. On December 3, 2005, Adobe acquired its main rival, Macromedia, in a stock swap valued at about $3.4 billion, adding ColdFusion, Contribute, Captivate, Breeze (rebranded as Adobe Connect), Director, Dreamweaver, Fireworks, Flash, FlashPaper, Flex, FreeHand, HomeSite, JRun, Presenter, and Authorware to Adobe's product line. Adobe released Adobe Media Player in April 2008. On April 27, Adobe discontinued the development and sales of its older HTML/web development software, GoLive, in favor of Dreamweaver. Adobe offered a discount on Dreamweaver for GoLive users and supports those who still use GoLive with online tutorials and migration assistance. On June 1, Adobe launched Acrobat.com, a series of web applications geared for collaborative work. Creative Suite 4, which includes Design, Web, Production Premium, and Master Collection came out in October 2008 in six configurations at prices from about US$1,700 to $2,500 or by individual application. The Windows version of Photoshop includes 64-bit processing. On December 3, 2008, Adobe laid off 600 of its employees (8% of the worldwide staff) citing the weak economic environment. On September 15, 2009, Adobe Systems announced that it would acquire online marketing and web analytics company Omniture for $1.8 billion. The deal was completed on October 23, 2009. Former Omniture products were integrated into the Adobe Marketing Cloud. On November 10, 2009, the company laid off a further 680 employees. Adobe's 2010 was marked by continuing front-and-back arguments with Apple over the latter's non-support for Adobe Flash on its iPhone, iPad and other products. Former Apple CEO Steve Jobs claimed that Flash was not reliable or secure enough, while Adobe executives have argued that Apple wishes to maintain control over the iOS platform. In April 2010, Steve Jobs published a post titled Thoughts on Flash where he outlined his thoughts on Flash and the rise of HTML 5. In July 2010, Adobe bought Day Software integrating their line of CQ Products: WCM, DAM, SOCO, and Mobile In January 2011, Adobe acquired DemDex, Inc. with the intent of adding DemDex's audience-optimization software to its online marketing suite. At Photoshop World 2011, Adobe unveiled a new mobile photo service. Carousel is a new application for iPhone, iPad, and Mac that uses Photoshop Lightroom technology to allow users to adjust and fine-tune images on all platforms. Carousel will also allow users to automatically sync, share and browse photos. The service was later renamed to "Adobe Revel". In October 2011, Adobe acquired Nitobi Software, the maker of the mobile application development framework PhoneGap. As part of the acquisition, the source code of PhoneGap was submitted to the Apache Foundation, where it became Apache Cordova. In November 2011, Adobe announced that they would cease development of Flash for mobile devices following version 11.1. Instead, it would focus on HTML 5 for mobile devices. In December 2011, Adobe announced that it had entered into a definitive agreement to acquire privately held Efficient Frontier. In December 2012, Adobe opened a new corporate campus in Lehi, Utah. In 2013, Adobe endured a major security breach. Vast portions of the source code for the company's software were stolen and posted online and over 150 million records of Adobe's customers have been made readily available for download. In 2012, about 40 million sets of payment card information were compromised by a hack at Adobe. A class-action lawsuit alleging that the company suppressed employee compensation was filed against Adobe, and three other Silicon Valley-based companies in a California federal district court in 2013. In May 2014, it was revealed the four companies, Adobe, Apple, Google, and Intel had reached an agreement with the plaintiffs, 64,000 employees of the four companies, to pay a sum of $324.5 million to settle the suit. In March 2018, at Adobe Summit, the company and Nvidia publicized a key association to quickly upgrade their industry-driving AI and profound learning innovations. Expanding on years of coordinated effort, the organizations will work to streamline the Adobe Sensei AI and machine learning structure for Nvidia GPUs. The joint effort will speed up time to showcase and enhance the execution of new Sensei-powered services for Adobe Creative Cloud and Experience Cloud clients and engineers. Adobe and Nvidia have co-operated for over 10 years on empowering GPU quickening for a wide arrangement of Adobe's creative and computerized encounter items. This incorporates Sensei-powered features, for example, auto lip-sync in Adobe Character Animator CC and face-aware editing in Photoshop CC, and also cloud-based AI/ML items and features, for example, picture investigation for Adobe Stock and Lightroom CC and auto-labeling in Adobe Experience Supervisor. In May 2018, Adobe stated they would buy e-commerce services provider Magento Commerce from private equity firm Permira for $1.68 billion. This deal will help bolster its Experience Cloud business, which provides services including analytics, advertising, and marketing. The deal is closed on June 19, 2018. In September 2018, Adobe announced its acquisition of marketing automation software company Marketo. In October 2018, Adobe officially changed its name from Adobe Systems Incorporated to Adobe Inc. In January 2019, Adobe announced its acquisition of 3D texturing company Allegorithmic. In 2020, the annual Adobe Summit was canceled due to the COVID-19 pandemic. The event took place online and saw over 21 million total video views and over 2.2 million visits to the event website. The software giant has imposed a ban on the political ads features on its digital advert sales platform as the United States presidential elections approach. On November 9, 2020, Adobe announced it would spend US$1.5 billion to acquire Workfront, a provider of marketing collaboration software. The acquisition was completed in early December 2020. On August 19, 2021, Adobe announced it had entered into a definitive agreement to acquire Frame.io, a leading cloud-based video collaboration platform. The transaction is valued at $1.275 billion and closed during the fourth quarter of Adobe's 2021 fiscal year. On September 15, 2021, Adobe Inc. formally announced that it will add payment services to its e-commerce platform this year, allowing merchants on their platform a method to accept payments including credit cards and PayPal. In September 2022, Adobe announced that it had agreed to buy the software design start-up Figma for $20billion. The cloud-based design software from Figma directly competes with Adobe XD. The deal faces regulatory scrutiny. In February 2023, it was announced the European Commission would review the acquisition under European Union merger regulation (EUMR). Finances Products Adobe's currently supported roster of software, online services and file formats comprises the following (): Digital Marketing Management Software Adobe Experience Cloud, Adobe Experience Manager (AEM 6.2), XML Documentation add-on (for AEM), Mixamo Formats Portable Document Format (PDF), PDF's predecessor PostScript, ActionScript, Shockwave Flash (SWF), Flash Video (FLV), and Filmstrip (.flm) Web-hosted services Adobe Color, Photoshop Express, Acrobat.com, Behance and Adobe Express. Adobe Renderer Adobe Media Encoder Adobe Stock A microstock agency that presently provides over 57 million high-resolution, royalty-free images and videos available to license (via subscription or credit purchase methods). In 2015, Adobe acquired Fotolia, a stock content marketplace founded in 2005 by Thibaud Elziere, Oleg Tscheltzoff, and Patrick Chassany which operated in 23 countries. It is run as a stand-alone website. Adobe Experience Platform A family of content, development, and customer relationship management products, with what Adobe calls the "next generation" of its Sensei artificial intelligence and machine learning framework, introduced in March 2019. Reception Since 2000, Fortune has recognized Adobe as one of the 100 Best Companies to Work For. In 2021, Adobe was ranked 16th. Glassdoor recognized Adobe as a Best Place to Work. In October 2021, Fast Company included Adobe on their Brands That Matter list. In October 2008, Adobe Systems Canada Inc. was named one of "Canada's Top 100 Employers" by Mediacorp Canada Inc. and was featured in Maclean's newsmagazine. Adobe received a five-star rating from the Electronic Frontier Foundation with regard to its handling of government data requests in 2017. In 2022, Adobe was listed as one of the Best Places to Work for Disability Inclusion by the Disability Equality Index (DEI). Criticisms Pricing Adobe has been criticized for its pricing practices, with retail prices being up to twice as much in non-US countries. For example, it is significantly cheaper to pay for a return airfare ticket to the United States and purchase one particular collection of Adobe's software there than to buy it locally in Australia. After Adobe revealed the pricing for the Creative Suite 3 Master Collection, which was £1,000 higher for European customers, a petition to protest over "unfair pricing" was published and signed by 10,000 users. In June 2009, Adobe further increased its prices in the UK by 10% in spite of weakening of the pound against the dollar, and UK users were not allowed to buy from the US store. Adobe's Reader and Flash programs were listed on "The 10 most hated programs of all time" article by TechRadar. Security Hackers have exploited vulnerabilities in Adobe programs, such as Adobe Reader, to gain unauthorized access to computers. Adobe's Flash Player has also been criticized for, among other things, suffering from performance, memory usage and security problems (see criticism of Flash Player). A report by security researchers from Kaspersky Lab criticized Adobe for producing the products having top 10 security vulnerabilities. Observers noted that Adobe was spying on its customers by including spyware in the Creative Suite 3 software and quietly sending user data to a firm named Omniture. When users became aware, Adobe explained what the suspicious software did and admitted that they: "could and should do a better job taking security concerns into account". When a security flaw was later discovered in Photoshop CS5, Adobe sparked outrage by saying it would leave the flaw unpatched, so anyone who wanted to use the software securely would have to pay for an upgrade. Following a fierce backlash Adobe decided to provide the software patch. Adobe has been criticized for pushing unwanted software including third-party browser toolbars and free virus scanners, usually as part of the Flash update process, and for pushing a third-party scareware program designed to scare users into paying for unneeded system repairs. Customer data breach On October 3, 2013, the company initially revealed that 2.9 million customers' sensitive and personal data was stolen in a security breach which included encrypted credit card information. Adobe later admitted that 38 million active users have been affected and the attackers obtained access to their IDs and encrypted passwords, as well as to many inactive Adobe accounts. The company did not make it clear if all the personal information was encrypted, such as email addresses and physical addresses, though data privacy laws in 44 states require this information to be encrypted. A 3.8 GB file stolen from Adobe and containing 152 million usernames, reversibly encrypted passwords and unencrypted password hints was posted on AnonNews.org. LastPass, a password security firm, said that Adobe failed to use best practices for securing the passwords and has not salted them. Another security firm, Sophos, showed that Adobe used a weak encryption method permitting the recovery of a lot of information with very little effort. According to IT expert Simon Bain, Adobe has failed its customers and 'should hang their heads in shame'. Many of the credit cards were tied to the Creative Cloud software-by-subscription service. Adobe offered its affected US customers a free membership in a credit monitoring service, but no similar arrangements have been made for non-US customers. When a data breach occurs in the US, penalties depend on the state where the victim resides, not where the company is based. After stealing the customers' data, cyber-thieves also accessed Adobe's source code repository, likely in mid-August 2013. Because hackers acquired copies of the source code of Adobe proprietary products, they could find and exploit any potential weaknesses in its security, computer experts warned. Security researcher Alex Holden, chief information security officer of Hold Security, characterized this Adobe breach, which affected Acrobat, ColdFusion and numerous other applications, as "one of the worst in US history". Adobe also announced that hackers stole parts of the source code of Photoshop, which according to commentators could allow programmers to copy its engineering techniques and would make it easier to pirate Adobe's expensive products. Published on a server of a Russian-speaking hacker group, the "disclosure of encryption algorithms, other security schemes, and software vulnerabilities can be used to bypass protections for individual and corporate data" and may have opened the gateway to new generation zero-day attacks. Hackers already used ColdFusion exploits to make off with usernames and encrypted passwords of PR Newswire's customers, which has been tied to the Adobe security breach. They also used a ColdFusion exploit to breach Washington state court and expose up to 200,000 Social Security numbers. Anti-competitive practices In 1994, Adobe acquired Aldus Corp., a software vendor that sold FreeHand, a competing product. FreeHand was direct competition to Adobe Illustrator, Adobe's flagship vector-graphics editor. The Federal Trade Commission intervened and forced Adobe to sell FreeHand back to Altsys, and also banned Adobe from buying back FreeHand or any similar program for the next 10 years (1994–2004). Altsys was then bought by Macromedia, which released versions 5 to 11. When Adobe acquired Macromedia in December 2005, it stalled development of FreeHand in 2007, effectively rendering it obsolete. With FreeHand and Illustrator, Adobe controlled the only two products that compete in the professional illustration program market for Macintosh operating systems. In 2011, a group of 5,000 FreeHand graphic designers convened under the banner Free FreeHand, and filed a civil antitrust complaint in the US District Court for the Northern District of California against Adobe. The suit alleged that Adobe has violated federal and state antitrust laws by abusing its dominant position in the professional vector graphic illustration software market and that Adobe has engaged in a series of exclusionary and anti-competitive acts and strategies designed to kill FreeHand, the dominant competitor to Adobe's Illustrator software product, instead of competing on the basis of product merit according to the principals of free market capitalism. Adobe had no response to the claims and the lawsuit was eventually settled. The FreeHand community believes Adobe should release the product to an open-source community if it cannot update it internally. , on its FreeHand product page, Adobe stated, "While we recognize FreeHand has a loyal customer base, we encourage users to migrate to the new Adobe Illustrator CS4 software which supports both PowerPC and Intel-based Macs and Microsoft Windows XP and Windows Vista." , the FreeHand page no longer exists; instead, it simply redirects to the Illustrator page. Adobe's software FTP server still contains a directory for FreeHand, but it is empty. Cancellation fees In April 2021, Adobe received criticism from Twitter users for the company's cancellation fees after a customer shared a tweet showing they had been charged a $291.45 cancellation fee for their Adobe Creative Cloud subscription. Many also showed their cancellation fees for Adobe Creative Cloud, with this leading to many encouraging piracy of Adobe products and/or purchase of alternatives with lower prices or using free and open-source software instead. Furthermore, there have been reports that with changing subscriptions it is possible to avoid paying this fee. Chief executive officers John Warnock (1982–2000) Bruce Chizen (2000–2007) Shantanu Narayen (2007–present) See also Adobe MAX Digital rights management (DRM) List of acquisitions by Adobe United States v. Elcom Ltd. References External links 1982 establishments in California Companies based in San Jose, California Companies listed on the Nasdaq Multinational companies headquartered in the United States Software companies based in the San Francisco Bay Area Software companies established in 1982 Type foundries American companies established in 1982 1980s initial public offerings Software companies of the United States

1962

https://en.wikipedia.org/wiki/Apparent%20magnitude

Apparent magnitude

Apparent magnitude () is a measure of the brightness of a star or other astronomical object. An object's apparent magnitude depends on its intrinsic luminosity, its distance, and any extinction of the object's light caused by interstellar dust along the line of sight to the observer. The word magnitude in astronomy, unless stated otherwise, usually refers to a celestial object's apparent magnitude. The magnitude scale dates back to the ancient Roman astronomer Claudius Ptolemy, whose star catalog listed stars from 1st magnitude (brightest) to 6th magnitude (dimmest). The modern scale was mathematically defined in a way to closely match this historical system. The scale is reverse logarithmic: the brighter an object is, the lower its magnitude number. A difference of 1.0 in magnitude corresponds to a brightness ratio of , or about 2.512. For example, a star of magnitude 2.0 is 2.512 times as bright as a star of magnitude 3.0, 6.31 times as bright as a star of magnitude 4.0, and 100 times as bright as one of magnitude 7.0. Differences in astronomical magnitudes can also be related to another logarithmic ratio scale, the decibel: an increase of one astronomical magnitude is exactly equal to a decrease of 4 decibels (dB). The brightest astronomical objects have negative apparent magnitudes: for example, Venus at −4.2 or Sirius at −1.46. The faintest stars visible with the naked eye on the darkest night have apparent magnitudes of about +6.5, though this varies depending on a person's eyesight and with altitude and atmospheric conditions. The apparent magnitudes of known objects range from the Sun at −26.832 to objects in deep Hubble Space Telescope images of magnitude +31.5. The measurement of apparent magnitude is called photometry. Photometric measurements are made in the ultraviolet, visible, or infrared wavelength bands using standard passband filters belonging to photometric systems such as the UBV system or the Strömgren uvbyβ system. Absolute magnitude is a measure of the intrinsic luminosity of a celestial object, rather than its apparent brightness, and is expressed on the same reverse logarithmic scale. Absolute magnitude is defined as the apparent magnitude that a star or object would have if it were observed from a distance of . Therefore, it is of greater use in stellar astrophysics since it refers to a property of a star regardless of how close it is to Earth. But in observational astronomy and popular stargazing, unqualified references to "magnitude" are understood to mean apparent magnitude. Amateur astronomers commonly express the darkness of the sky in terms of limiting magnitude, i.e. the apparent magnitude of the faintest star they can see with the naked eye. This can be useful as a way of monitoring the spread of light pollution. Apparent magnitude is really a measure of illuminance, which can also be measured in photometric units such as lux. History The scale used to indicate magnitude originates in the Hellenistic practice of dividing stars visible to the naked eye into six magnitudes. The brightest stars in the night sky were said to be of first magnitude ( = 1), whereas the faintest were of sixth magnitude ( = 6), which is the limit of human visual perception (without the aid of a telescope). Each grade of magnitude was considered twice the brightness of the following grade (a logarithmic scale), although that ratio was subjective as no photodetectors existed. This rather crude scale for the brightness of stars was popularized by Ptolemy in his Almagest and is generally believed to have originated with Hipparchus. This cannot be proved or disproved because Hipparchus's original star catalogue is lost. The only preserved text by Hipparchus himself (a commentary to Aratus) clearly documents that he did not have a system to describe brightness with numbers: He always uses terms like "big" or "small", "bright" or "faint" or even descriptions such as "visible at full moon". In 1856, Norman Robert Pogson formalized the system by defining a first magnitude star as a star that is 100 times as bright as a sixth-magnitude star, thereby establishing the logarithmic scale still in use today. This implies that a star of magnitude is about 2.512 times as bright as a star of magnitude . This figure, the fifth root of 100, became known as Pogson's Ratio. The zero point of Pogson's scale was originally defined by assigning Polaris a magnitude of exactly 2. Astronomers later discovered that Polaris is slightly variable, so they switched to Vega as the standard reference star, assigning the brightness of Vega as the definition of zero magnitude at any specified wavelength. Apart from small corrections, the brightness of Vega still serves as the definition of zero magnitude for visible and near infrared wavelengths, where its spectral energy distribution (SED) closely approximates that of a black body for a temperature of . However, with the advent of infrared astronomy it was revealed that Vega's radiation includes an infrared excess presumably due to a circumstellar disk consisting of dust at warm temperatures (but much cooler than the star's surface). At shorter (e.g. visible) wavelengths, there is negligible emission from dust at these temperatures. However, in order to properly extend the magnitude scale further into the infrared, this peculiarity of Vega should not affect the definition of the magnitude scale. Therefore, the magnitude scale was extrapolated to all wavelengths on the basis of the black-body radiation curve for an ideal stellar surface at uncontaminated by circumstellar radiation. On this basis the spectral irradiance (usually expressed in janskys) for the zero magnitude point, as a function of wavelength, can be computed. Small deviations are specified between systems using measurement apparatuses developed independently so that data obtained by different astronomers can be properly compared, but of greater practical importance is the definition of magnitude not at a single wavelength but applying to the response of standard spectral filters used in photometry over various wavelength bands. With the modern magnitude systems, brightness over a very wide range is specified according to the logarithmic definition detailed below, using this zero reference. In practice such apparent magnitudes do not exceed 30 (for detectable measurements). The brightness of Vega is exceeded by four stars in the night sky at visible wavelengths (and more at infrared wavelengths) as well as the bright planets Venus, Mars, and Jupiter, and these must be described by negative magnitudes. For example, Sirius, the brightest star of the celestial sphere, has a magnitude of −1.4 in the visible. Negative magnitudes for other very bright astronomical objects can be found in the table below. Astronomers have developed other photometric zero point systems as alternatives to the Vega system. The most widely used is the AB magnitude system, in which photometric zero points are based on a hypothetical reference spectrum having constant flux per unit frequency interval, rather than using a stellar spectrum or blackbody curve as the reference. The AB magnitude zero point is defined such that an object's AB and Vega-based magnitudes will be approximately equal in the V filter band. Measurement Precision measurement of magnitude (photometry) requires calibration of the photographic or (usually) electronic detection apparatus. This generally involves contemporaneous observation, under identical conditions, of standard stars whose magnitude using that spectral filter is accurately known. Moreover, as the amount of light actually received by a telescope is reduced due to transmission through the Earth's atmosphere, the airmasses of the target and calibration stars must be taken into account. Typically one would observe a few different stars of known magnitude which are sufficiently similar. Calibrator stars close in the sky to the target are favoured (to avoid large differences in the atmospheric paths). If those stars have somewhat different zenith angles (altitudes) then a correction factor as a function of airmass can be derived and applied to the airmass at the target's position. Such calibration obtains the brightness as would be observed from above the atmosphere, where apparent magnitude is defined. The apparent magnitude scale in astronomy reflects the received power of stars and not their amplitude. Newcomers should consider using the relative brightness measure in astrophotography to adjust exposure times between stars. Apparent magnitude also integrates over the entire object, regardless of its focus, and this needs to be taken into account when scaling exposure times for objects with significant apparent size, like the Sun, Moon and planets. For example, directly scaling the exposure time from the Moon to the Sun works because they are approximately the same size in the sky. However, scaling the exposure from the Moon to Saturn would result in an overexposure if the image of Saturn takes up a smaller area on your sensor than the Moon did (at the same magnification, or more generally, f/#). Calculations The dimmer an object appears, the higher the numerical value given to its magnitude, with a difference of 5 magnitudes corresponding to a brightness factor of exactly 100. Therefore, the magnitude , in the spectral band , would be given by which is more commonly expressed in terms of common (base-10) logarithms as where is the observed irradiance using spectral filter , and is the reference flux (zero-point) for that photometric filter. Since an increase of 5 magnitudes corresponds to a decrease in brightness by a factor of exactly 100, each magnitude increase implies a decrease in brightness by the factor (Pogson's ratio). Inverting the above formula, a magnitude difference implies a brightness factor of Example: Sun and Moon What is the ratio in brightness between the Sun and the full Moon? The apparent magnitude of the Sun is −26.832 (brighter), and the mean magnitude of the full moon is −12.74 (dimmer). Difference in magnitude: Brightness factor: The Sun appears about times as bright as the full Moon. Magnitude addition Sometimes one might wish to add brightness. For example, photometry on closely separated double stars may only be able to produce a measurement of their combined light output. To find the combined magnitude of that double star knowing only the magnitudes of the individual components, this can be done by adding the brightness (in linear units) corresponding to each magnitude. Solving for yields where is the resulting magnitude after adding the brightnesses referred to by and . Apparent bolometric magnitude While magnitude generally refers to a measurement in a particular filter band corresponding to some range of wavelengths, the apparent or absolute bolometric magnitude (mbol) is a measure of an object's apparent or absolute brightness integrated over all wavelengths of the electromagnetic spectrum (also known as the object's irradiance or power, respectively). The zero point of the apparent bolometric magnitude scale is based on the definition that an apparent bolometric magnitude of 0 mag is equivalent to a received irradiance of 2.518×10−8 watts per square metre (W·m−2). Absolute magnitude While apparent magnitude is a measure of the brightness of an object as seen by a particular observer, absolute magnitude is a measure of the intrinsic brightness of an object. Flux decreases with distance according to an inverse-square law, so the apparent magnitude of a star depends on both its absolute brightness and its distance (and any extinction). For example, a star at one distance will have the same apparent magnitude as a star four times as bright at twice that distance. In contrast, the intrinsic brightness of an astronomical object, does not depend on the distance of the observer or any extinction. The absolute magnitude , of a star or astronomical object is defined as the apparent magnitude it would have as seen from a distance of . The absolute magnitude of the Sun is 4.83 in the V band (visual), 4.68 in the Gaia satellite's G band (green) and 5.48 in the B band (blue). In the case of a planet or asteroid, the absolute magnitude rather means the apparent magnitude it would have if it were from both the observer and the Sun, and fully illuminated at maximum opposition (a configuration that is only theoretically achievable, with the observer situated on the surface of the Sun). Standard reference values The magnitude scale is a reverse logarithmic scale. A common misconception is that the logarithmic nature of the scale is because the human eye itself has a logarithmic response. In Pogson's time this was thought to be true (see Weber–Fechner law), but it is now believed that the response is a power law . Magnitude is complicated by the fact that light is not monochromatic. The sensitivity of a light detector varies according to the wavelength of the light, and the way it varies depends on the type of light detector. For this reason, it is necessary to specify how the magnitude is measured for the value to be meaningful. For this purpose the UBV system is widely used, in which the magnitude is measured in three different wavelength bands: U (centred at about 350 nm, in the near ultraviolet), B (about 435 nm, in the blue region) and V (about 555 nm, in the middle of the human visual range in daylight). The V band was chosen for spectral purposes and gives magnitudes closely corresponding to those seen by the human eye. When an apparent magnitude is discussed without further qualification, the V magnitude is generally understood. Because cooler stars, such as red giants and red dwarfs, emit little energy in the blue and UV regions of the spectrum, their power is often under-represented by the UBV scale. Indeed, some L and T class stars have an estimated magnitude of well over 100, because they emit extremely little visible light, but are strongest in infrared. Measures of magnitude need cautious treatment and it is extremely important to measure like with like. On early 20th century and older orthochromatic (blue-sensitive) photographic film, the relative brightnesses of the blue supergiant Rigel and the red supergiant Betelgeuse irregular variable star (at maximum) are reversed compared to what human eyes perceive, because this archaic film is more sensitive to blue light than it is to red light. Magnitudes obtained from this method are known as photographic magnitudes, and are now considered obsolete. For objects within the Milky Way with a given absolute magnitude, 5 is added to the apparent magnitude for every tenfold increase in the distance to the object. For objects at very great distances (far beyond the Milky Way), this relationship must be adjusted for redshifts and for non-Euclidean distance measures due to general relativity. For planets and other Solar System bodies, the apparent magnitude is derived from its phase curve and the distances to the Sun and observer. List of apparent magnitudes Some of the listed magnitudes are approximate. Telescope sensitivity depends on observing time, optical bandpass, and interfering light from scattering and airglow. See also Distance modulus List of nearest bright stars List of nearest stars and brown dwarfs Luminosity in astronomy Surface brightness References External links Observational astronomy Logarithmic scales of measurement

1965

https://en.wikipedia.org/wiki/Apollo%201

Apollo 1

Apollo 1, initially designated AS-204, was planned to be the first crewed mission of the Apollo program, the American undertaking to land the first man on the Moon. It was planned to launch on February 21, 1967, as the first low Earth orbital test of the Apollo command and service module. The mission never flew; a cabin fire during a launch rehearsal test at Cape Kennedy Air Force Station Launch Complex 34 on January 27 killed all three crew members—Command Pilot Gus Grissom, Senior Pilot Ed White, and Pilot Roger B. Chaffee—and destroyed the command module (CM). The name Apollo 1, chosen by the crew, was made official by NASA in their honor after the fire. Immediately after the fire, NASA convened an Accident Review Board to determine the cause of the fire, and both chambers of the United States Congress conducted their own committee inquiries to oversee NASA's investigation. The ignition source of the fire was determined to be electrical, and the fire spread rapidly due to combustible nylon material and the high-pressure pure oxygen cabin atmosphere. Rescue was prevented by the plug door hatch, which could not be opened against the internal pressure of the cabin. Because the rocket was unfueled, the test had not been considered hazardous, and emergency preparedness for it was poor. During the Congressional investigation, Senator Walter Mondale publicly revealed a NASA internal document citing problems with prime Apollo contractor North American Aviation, which became known as the Phillips Report. This disclosure embarrassed NASA Administrator James E. Webb, who was unaware of the document's existence, and attracted controversy to the Apollo program. Despite congressional displeasure at NASA's lack of openness, both congressional committees ruled that the issues raised in the report had no bearing on the accident. Crewed Apollo flights were suspended for twenty months while the command module's hazards were addressed. However, the development and uncrewed testing of the lunar module (LM) and Saturn V rocket continued. The Saturn IB launch vehicle for Apollo1, SA-204, was used for the first LM test flight, Apollo 5. The first successful crewed Apollo mission was flown by Apollo1's backup crew on Apollo 7 in October 1968. Crew First backup crew (April–December 1966) Second backup crew (December 1966 – January 1967) Apollo crewed test flight plans AS-204 was to be the first crewed test flight of the Apollo command and service module (CSM) to Earth orbit, launched on a Saturn IB rocket. AS-204 was to test launch operations, ground tracking and control facilities and the performance of the Apollo-Saturn launch assembly and would have lasted up to two weeks, depending on how the spacecraft performed. The CSM for this flight, number 012 built by North American Aviation (NAA), was a Block I version designed before the lunar orbit rendezvous landing strategy was chosen; therefore it lacked the capability of docking with the lunar module. This was incorporated into the Block II CSM design, along with lessons learned in Block I. Block II would be test-flown with the LM when the latter was ready. Director of Flight Crew Operations Deke Slayton selected the first Apollo crew in January 1966, with Grissom as Command Pilot, White as Senior Pilot, and rookie Donn F. Eisele as Pilot. But Eisele dislocated his shoulder twice aboard the KC-135 weightlessness training aircraft, and had to undergo surgery on January 27. Slayton replaced him with Chaffee, and NASA announced the crew selection on March 21, 1966. James McDivitt, David Scott and Russell Schweickart were named as the backup crew. On September 29, Walter Schirra, Eisele, and Walter Cunningham were named as the prime crew for a second Block I CSM flight, AS-205. NASA planned to follow this with an uncrewed test flight of the LM (AS-206), then the third crewed mission would be a dual flight designated AS-278 (or AS-207/208), in which AS-207 would launch the first crewed Block II CSM, which would then rendezvous and dock with the LM launched uncrewed on AS-208. In March, NASA was studying the possibility of flying the first Apollo mission as a joint space rendezvous with the final Project Gemini mission, Gemini 12 in November 1966. But by May, delays in making Apollo ready for flight just by itself, and the extra time needed to incorporate compatibility with the Gemini, made that impractical. This became moot when slippage in readiness of the AS-204 spacecraft caused the last-quarter 1966 target date to be missed, and the mission was rescheduled for February 21, 1967. Mission background In October 1966, NASA announced the flight would carry a small television camera to broadcast live from the command module. The camera would also be used to allow flight controllers to monitor the spacecraft's instrument panel in flight. Television cameras were carried aboard all crewed Apollo missions. Insignia Grissom's crew received approval in June 1966 to design a mission patch with the name Apollo1 (though the approval was subsequently withdrawn pending a final decision on the mission designation, which was not resolved until after the fire). The design's center depicts a command and service module flying over the southeastern United States with Florida (the launch point) prominent. The Moon is seen in the distance, symbolic of the eventual program goal. A yellow border carries the mission and astronaut names with another border set with stars and stripes, trimmed in gold. The insignia was designed by the crew, with the artwork done by North American Aviation employee Allen Stevens. Spacecraft and crew preparation The Apollo command and service module was much bigger and far more complex than any previous crewed spacecraft. In October 1963, Joseph F. Shea was named Apollo Spacecraft Program Office (ASPO) manager, responsible for managing the design and construction of both the CSM and the LM. In a spacecraft review meeting held with Shea on August 19, 1966 (a week before delivery), the crew expressed concern about the amount of flammable material (mainly nylon netting and Velcro) in the cabin, which both astronauts and technicians found convenient for holding tools and equipment in place. Although Shea gave the spacecraft a passing grade, after the meeting they gave him a crew portrait they had posed with heads bowed and hands clasped in prayer, with the inscription: Shea gave his staff orders to tell North American to remove the flammables from the cabin, but did not supervise the issue personally. North American shipped spacecraft CM-012 to Kennedy Space Center on August 26, 1966, under a conditional Certificate of Flight Worthiness: 113 significant incomplete planned engineering changes had to be completed at KSC. That was not all; an additional 623 engineering change orders were made and completed after delivery. Grissom became so frustrated with the inability of the training simulator engineers to keep up with the spacecraft changes that he took a lemon from a tree by his house and hung it on the simulator. The command and service modules were mated in the KSC altitude chamber in September, and combined system testing was performed. Altitude testing was performed first uncrewed, then with both the prime and backup crews, from October 10 through December 30. During this testing, the environmental control unit in the command module was found to have a design flaw, and was sent back to the manufacturer for design changes and rework. The returned ECU then leaked water/glycol coolant, and had to be returned a second time. Also during this time, a propellant tank in another service module had ruptured during testing at NAA, prompting the removal from the KSC test chamber of the service module so it could be tested for signs of the tank problem. These tests were negative. In December the second Block I flight AS-205 was canceled as unnecessary; Schirra, Eisele and Cunningham were reassigned as the backup crew for Apollo1. McDivitt's crew was now promoted to prime crew of the Block II/LM mission, re-designated AS-258 because the AS-205 launch vehicle would be used in place of AS-207. A third crewed mission was planned to launch the CSM and LM together on a SaturnV (AS-503) to an elliptical medium Earth orbit (MEO), to be crewed by Frank Borman, Michael Collins and William Anders. McDivitt, Scott and Schweickart had started their training for AS-258 in CM-101 at the NAA plant in Downey, California, when the Apollo1 accident occurred. Once all outstanding CSM-012 hardware problems had been fixed, the reassembled spacecraft completed a successful altitude chamber test with Schirra's backup crew on December 30. According to the final report of the accident investigation board, "At the post-test debriefing the backup flight crew expressed their satisfaction with the condition and performance of the spacecraft." This would appear to contradict the account given in the 1994 book Lost Moon: The Perilous Voyage of Apollo13 by Jeffrey Kluger and astronaut James Lovell, that "When the trio climbed out of the ship,... Schirra made it clear that he was not pleased with what he had seen," and that he later warned Grissom and Shea that "there's nothing wrong with this ship that I can point to, but it just makes me uncomfortable. Something about it just doesn't ring right," and that Grissom should get out at the first sign of trouble. After the successful altitude tests, the spacecraft was removed from the altitude chamber on January 3, 1967, and mated to its Saturn IB launch vehicle on pad 34 on January 6. Grissom said in a February 1963 interview that NASA could not eliminate risk despite precautions: "I suppose that someday we are going to have a failure. In every other business there are failures, and they are bound to happen sooner or later", he added. Grissom was asked about the fear of potential catastrophe in a December 1966 interview: Accident Plugs-out test The launch simulation on January 27, 1967, on pad 34, was a "plugs-out" test to determine whether the spacecraft would operate nominally on (simulated) internal power while detached from all cables and umbilicals. Passing this test was essential to making the February 21 launch date. The test was considered non-hazardous because neither the launch vehicle nor the spacecraft was loaded with fuel or cryogenics and all pyrotechnic systems (explosive bolts) were disabled. At 1:00 pm EST (1800 GMT) on January 27, first Grissom, then Chaffee, and White entered the command module fully pressure-suited, and were strapped into their seats and hooked up to the spacecraft's oxygen and communication systems. Grissom immediately noticed a strange odor in the air circulating through his suit which he compared to "sour buttermilk", and the simulated countdown was put on hold at 1:20 pm, while air samples were taken. No cause of the odor could be found, and the countdown was resumed at 2:42 pm. The accident investigation found this odor not to be related to the fire. Three minutes after the count was resumed the hatch installation was started. The hatch consisted of three parts: a removable inner hatch which stayed inside the cabin; a hinged outer hatch which was part of the spacecraft's heat shield; and an outer hatch cover which was part of the boost protective cover enveloping the entire command module to protect it from aerodynamic heating during launch and from launch escape rocket exhaust in the event of a launch abort. The boost hatch cover was partially, but not fully, latched in place because the flexible boost protective cover was slightly distorted by some cabling run under it to provide the simulated internal power (the spacecraft's fuel cell reactants were not loaded for this test). After the hatches were sealed, the air in the cabin was replaced with pure oxygen at , higher than atmospheric pressure. Movement by the astronauts was detected by the spacecraft's inertial measurement unit and the astronauts' biomedical sensors, and also indicated by increases in oxygen spacesuit flow, and sounds from Grissom's stuck-open microphone. The stuck microphone was part of a problem with the communications loop connecting the crew, the Operations and Checkout Building, and the Complex 34 blockhouse control room. The poor communications led Grissom to remark: "How are we going to get to the Moon if we can't talk between two or three buildings?" The simulated countdown was put on hold again at 5:40 pm while attempts were made to troubleshoot the communications problem. All countdown functions up to the simulated internal power transfer had been successfully completed by 6:20 pm, and at 6:30 the count remained on hold at T minus 10 minutes. Fire The crew members were using the time to run through their checklist again, when a momentary increase in AC Bus2 voltage occurred. Nine seconds later (at 6:31:04.7), one of the astronauts (some listeners and laboratory analysis indicate Grissom) exclaimed "Hey!", "Fire!", or "Flame!"; this was followed by two seconds of scuffling sounds through Grissom's open microphone. This was immediately followed at 6:31:06.2 (23:31:06.2 GMT) by someone (believed by most listeners, and supported by laboratory analysis, to be Chaffee) saying, "[I've, or We've] got a fire in the cockpit." After 6.8 seconds of silence, a second, badly garbled transmission was heard by various listeners as: "They're fighting a bad fire—Let's get out... Open 'er up", "We've got a bad fire—Let's get out... We're burning up", or "I'm reporting a bad fire... I'm getting out..." The transmission lasted 5.0 seconds and ended with a cry of pain. Some blockhouse witnesses said that they saw White on the television monitors, reaching for the inner hatch release handle as flames in the cabin spread from left to right. The heat of the fire fed by pure oxygen caused the pressure to rise to , which ruptured the command module's inner wall at 6:31:19 (23:31:19 GMT, initial phase of the fire). Flames and gases then rushed outside the command module through open access panels to two levels of the pad service structure. The intense heat, dense smoke, and ineffective gas masks designed for toxic fumes rather than smoke, hampered the ground crew's attempts to rescue the men. There were fears the command module had exploded, or soon would, and that the fire might ignite the solid fuel rocket in the launch escape tower above the command module, which would have likely killed nearby ground personnel, and possibly have destroyed the pad. As the pressure was released by the cabin rupture, the rush of gases within the module caused flames to spread across the cabin, beginning the second phase. The third phase began when most of the oxygen was consumed and was replaced with atmospheric air, essentially quenching the fire, but causing high concentrations of carbon monoxide and heavy smoke to fill the cabin, and large amounts of soot to be deposited on surfaces as they cooled. It took five minutes for the pad workers to open all three hatch layers, and they could not drop the inner hatch to the cabin floor as intended, so they pushed it out of the way to one side. Although the cabin lights remained on, they were unable to see the astronauts through the dense smoke. As the smoke cleared they found the bodies, but were not able to remove them. The fire had partly melted Grissom's and White's nylon space suits and the hoses connecting them to the life support system. Grissom had removed his restraints and was lying on the floor of the spacecraft. White's restraints were burned through, and he was found lying sideways just below the hatch. It was determined that he had tried to open the hatch per the emergency procedure, but was not able to do so against the internal pressure. Chaffee was found strapped into his right-hand seat, as procedure called for him to maintain communication until White opened the hatch. Because of the large strands of melted nylon fusing the astronauts to the cabin interior, removing the bodies took nearly 90 minutes. Deke Slayton was possibly the first NASA official to examine the spacecraft's interior. His testimony contradicted the official report concerning the position of Grissom's body. Slayton said of Grissom and White's bodies, "it is very difficult for me to determine the exact relationships of these two bodies. They were sort of jumbled together, and I couldn't really tell which head even belonged to which body at that point. I guess the only thing that was real obvious is that both bodies were at the lower edge of the hatch. They were not in the seats. They were almost completely clear of the seat areas." Investigation As a result of the in-flight failure of the Gemini 8 mission on March 17, 1966, NASA Deputy Administrator Robert Seamans wrote and implemented Management Instruction 8621.1 on April 14, 1966, defining Mission Failure Investigation Policy And Procedures. This modified NASA's existing accident procedures, based on military aircraft accident investigation, by giving the Deputy Administrator the option of performing independent investigations of major failures, beyond those for which the various Program Office officials were normally responsible. It declared, "It is NASA policy to investigate and document the causes of all major mission failures which occur in the conduct of its space and aeronautical activities and to take appropriate corrective actions as a result of the findings and recommendations." Immediately after thefire NASA Administrator James E. Webb asked President Lyndon B. Johnson to allow NASA to handle the investigation according to its established procedure, promising to be truthful in assessing blame, and to keep the appropriate leaders of Congress informed. Seamans then directed establishment of the Apollo 204 Review Board chaired by Langley Research Center director Floyd L. Thompson, which included astronaut Frank Borman, spacecraft designer Maxime Faget, and six others. On February 1, Cornell University professor Frank A. Long left the board, and was replaced by Robert W. Van Dolah of the U.S. Bureau of Mines. The next day North American's chief engineer for Apollo, George Jeffs, also left. Seamans ordered all Apollo1 hardware and software impounded, to be released only under control of the board. After thorough stereo photographic documentation of the CM-012 interior, the board ordered its disassembly using procedures tested by disassembling the identical CM-014 and conducted a thorough investigation of every part. The board also reviewed the astronauts' autopsy results and interviewed witnesses. Seamans sent Webb weekly status reports of the investigation's progress, and the board issued its final report on April 5, 1967. Cause of death According to the Board, Grissom suffered severe third-degree burns on over one-third of his body and his spacesuit was mostly destroyed. White suffered third-degree burns on almost half of his body and a quarter of his spacesuit had melted away. Chaffee suffered third-degree burns over almost a quarter of his body and a small portion of his spacesuit was damaged. The autopsy report determined that the primary cause of death for all three astronauts was cardiac arrest caused by high concentrations of carbon monoxide. Burns suffered by the crew were not believed to be major factors, and it was concluded that most of them had occurred postmortem. Asphyxiation occurred after the fire melted the astronauts' suits and oxygen tubes, exposing them to the lethal atmosphere of the cabin. Major causes of accident The review board identified several major factors which combined to cause the fire and the astronauts' deaths: An ignition source most probably related to "vulnerable wiring carrying spacecraft power" and "vulnerable plumbing carrying a combustible and corrosive coolant" A pure oxygen atmosphere at higher than atmospheric pressure A cabin sealed with a hatch cover which could not be quickly removed at high pressure An extensive distribution of combustible materials in the cabin Inadequate emergency preparedness (rescue or medical assistance, and crew escape) Ignition source The review board determined that the electrical power momentarily failed at 23:30:55 GMT, and found evidence of several electric arcs in the interior equipment. They were unable to conclusively identify a single ignition source. They determined that the fire most likely started near the floor in the lower left section of the cabin, close to the Environmental Control Unit. It spread from the left wall of the cabin to the right, with the floor being affected only briefly. The board noted that a silver-plated copper wire, running through an environmental control unit near the center couch, had become stripped of its Teflon insulation and abraded by repeated opening and closing of a small access door. This weak point in the wiring also ran near a junction in an ethylene glycol/water cooling line that had been prone to leaks. Electrolysis of ethylene glycol solution with the silver anode of the wire was discovered at the Manned Spacecraft Center on May 29, 1967, to be a hazard capable of causing a violent exothermic reaction, igniting the ethylene glycol mixture in the Command Module's pure oxygen atmosphere. Experiments at the Illinois Institute of Technology confirmed the hazard existed for silver-plated wires, but not for copper-only or nickel-plated copper. In July, ASPO directed both North American and Grumman to ensure no silver or silver-coated electrical contacts existed in the vicinity of possible glycol spills in the Apollo spacecraft. Pure oxygen atmosphere The plugs-out test had been run to simulate the launch procedure, with the cabin pressurized with pure oxygen at the nominal launch level of , above standard sea level atmospheric pressure. This is more than five times the partial pressure of oxygen in the atmosphere, and provides an environment in which materials not normally considered flammable will be highly flammable and burst into flame. The high-pressure oxygen atmosphere was similar to that which had been used successfully in the Mercury and Gemini programs. The pressure before launch was deliberately greater than ambient in order to drive out the nitrogen-containing air and replace it with pure oxygen, and also to seal the plug door hatch cover. During the launch, the pressure would have been gradually reduced to the in-flight level of , providing sufficient oxygen for the astronauts to breathe while reducing the fire risk. The Apollo1 crew had successfully tested this procedure with their spacecraft in the Operations and Checkout Building altitude (vacuum) chamber on October 18 and 19, 1966, and the backup crew of Schirra, Eisele and Cunningham had repeated it on December 30. The investigation board noted that, during these tests, the command module had been fully pressurized with pure oxygen four times, for a total of six hours and fifteen minutes, two and a half hours longer than it had been during the plugs-out test. Flammable materials in the cabin The review board cited "many types and classes of combustible material" close to ignition sources. The NASA crew systems department had installed of Velcro throughout the spacecraft, almost like carpeting. This Velcro was found to be flammable in a high-pressure 100% oxygen environment. Astronaut Buzz Aldrin states in his book Men From Earth that the flammable material had been removed per the crew's August 19 complaints and Joseph Shea's order, but was replaced before the August 26 delivery to Cape Kennedy. Hatch design The inner hatch cover used a plug door design, sealed by higher pressure inside the cabin than outside. The normal pressure level used for launch ( above ambient) created sufficient force to prevent removing the cover until the excess pressure was vented. Emergency procedure called for Grissom to open the cabin vent valve first, allowing White to remove the cover, but Grissom was prevented from doing this because the valve was located to the left, behind the initial wall of flames. Also, while the system could easily vent the normal pressure, its flow capacity was utterly incapable of handling the rapid increase to caused by the intense heat of the fire. North American had originally suggested the hatch open outward and use explosive bolts to blow the hatch in case of emergency, as had been done in Project Mercury. NASA did not agree, arguing the hatch could accidentally open, as it had on Grissom's Liberty Bell 7 flight, so the Manned Spacecraft Center designers rejected the explosive design in favor of a mechanically operated one for the Gemini and Apollo programs. Before the fire, the Apollo astronauts had recommended changing the design to an outward-opening hatch, and this was already slated for inclusion in the Block II command module design. According to Donald K. Slayton's testimony before the House investigation of the accident, this was based on ease of exit for spacewalks and at the end of flight, rather than for emergency exit. Emergency preparedness The board noted that the test planners had failed to identify the test as hazardous; emergency equipment (such as gas masks) were inadequate to handle this type of fire; that fire, rescue, and medical teams were not in attendance; and that the spacecraft work and access areas contained many hindrances to emergency response such as steps, sliding doors, and sharp turns. Choice of pure oxygen atmosphere When designing the Mercury spacecraft, NASA had considered using a nitrogen/oxygen mixture to reduce the fire risk near launch, but rejected it based on a number of considerations. First, a pure oxygen atmosphere is comfortably breathable by humans at , greatly reducing the pressure load on the spacecraft in the vacuum of space. Second, nitrogen used with the in-flight pressure reduction carried the risk of decompression sickness (known as "the bends"). But the decision to eliminate the use of any gas but oxygen was crystalized when a serious accident occurred on April 21, 1960, in which McDonnell Aircraft test pilot G. B. North passed out and was seriously injured when testing a Mercury cabin / spacesuit atmosphere system in a vacuum chamber. The problem was found to be nitrogen-rich (oxygen-poor) air leaking from the cabin into his spacesuit feed. North American Aviation had suggested using an oxygen/nitrogen mixture for Apollo, but NASA overruled this. The pure oxygen design was judged to be safer, less complicated, and lighter in weight. In his monograph Project Apollo: The Tough Decisions, Deputy Administrator Seamans wrote that NASA's worst mistake in engineering judgment was not running a fire test on the command module before the plugs-out test. In the first episode of the 2009 BBC documentary series NASA: Triumph and Tragedy, Jim McDivitt said that NASA had no idea how a 100% oxygen atmosphere would influence burning. Similar remarks by other astronauts were expressed in the 2007 documentary film In the Shadow of the Moon. Other oxygen incidents Several fires in high-oxygen test environments had occurred before the Apollo fire. In 1962, USAF Colonel B. Dean Smith was conducting a test of the Gemini space suit with a colleague in a pure oxygen chamber at Brooks Air Force Base in San Antonio, Texas, when a fire broke out, destroying the chamber. Smith and his partner narrowly escaped. On November 17, 1962, a fire broke out in a chamber at the Navy's Air Crew Equipment Laboratory during a pure oxygen test. The fire was started because a faulty ground wire arced onto nearby insulation. After attempts to extinguish the fire by smothering it, the crew escaped the chamber with minor burns across large parts of their bodies. On February 16, 1965, United States Navy Divers Fred Jackson and John Youmans were killed in a decompression chamber fire at the Experimental Diving Unit in Washington, D.C., shortly after additional oxygen was added to the chamber's atmospheric mix. In addition to fires with personnel present, the Apollo Environmental Control System experienced several accidents from 1964 to 1966 due to various hardware malfunctions. Notable is the April 28, 1966 fire, as the subsequent investigation found that several new measures should be taken to avoid fires, including improved selection of materials and that ESC and Command Module circuits have a potential for arcing or short circuits. Other oxygen fire occurrences are documented in reports archived in the National Air and Space Museum, such as: Selection of Space Cabin Atmospheres. Part II: Fire and Blast Hazaards in Space Cabins. (Emanuel M. Roth; Dept of Aeronautics Medicine and Bioastronautics, Lovelace Foundation for Medical Education and Research. c. 1964–1966) "Fire Prevention in Manned Spacecraft and Test Chamber Oxygen Atmospheres". (Manned Spacecraft Center. NASA General Working Paper 10 063. October 10, 1966) Incidents had also occurred in the Soviet space program, but due to the Soviet government's policy of secrecy, these were not disclosed until well after the Apollo1 fire. Cosmonaut Valentin Bondarenko died on March 23, 1961, from burns sustained in a fire while participating in a 15-day endurance experiment in a high-oxygen isolation chamber, less than three weeks before the first Vostok crewed space flight; this was disclosed on January 28, 1986. During the Voskhod 2 mission in March 1965, cosmonauts Pavel Belyayev and Alexei Leonov could not completely seal the spacecraft hatch after Leonov's historic first walk in space. The spacecraft's environmental control system responded to the leaking air by adding more oxygen to the cabin, causing the concentration level to rise as high as 45%. The crew and ground controllers worried about the possibility of fire, remembering Bondarenko's death four years earlier. On January 31, 1967, four days after the Apollo1 fire, United States Air Force airmen William F. Bartley Jr. and Richard G. Harmon were killed in a flash fire while tending laboratory rabbits in the Two Man Space Environment Simulator, a pure oxygen chamber at the School of Aerospace Medicine at Brooks Air Force Base. Like the Apollo1 fire, the School fire was caused by an electrical spark in a pure oxygen environment. The widows of the Apollo1 crew sent condolence letters to Bartley and Harmon's families. Political fallout Committees in both houses of the United States Congress with oversight of the space program soon launched investigations, including the Senate Committee on Aeronautical and Space Sciences, chaired by Senator Clinton P. Anderson. Seamans, Webb, Manned Space Flight Administrator Dr. George E. Mueller, and Apollo Program Director Maj Gen Samuel C. Phillips were called to testify before Anderson's committee. In the February 27 hearing, Senator Walter F. Mondale asked Webb if he knew of a report of extraordinary problems with the performance of North American Aviation on the Apollo contract. Webb replied he did not, and deferred to his subordinates on the witness panel. Mueller and Phillips responded they too were unaware of any such "report". However, in late 1965, just over a year before the accident, Phillips had headed a "tiger team" investigating the causes of inadequate quality, schedule delays, and cost overruns in both the Apollo CSM and the Saturn V second stage (for which North American was also prime contractor). He gave an oral presentation (with transparencies) of his team's findings to Mueller and Seamans, and also presented them in a memo to North American president John L. Atwood, to which Mueller appended his own strongly worded memo to Atwood. During Mondale's 1967 questioning about what was to become known as the "Phillips Report", Seamans was afraid Mondale might actually have seen a hard copy of Phillips' presentation, and responded that contractors have occasionally been subjected to on-site progress reviews; perhaps this was what Mondale's information referred to. Mondale continued to refer to "the Report" despite Phillips' refusal to characterize it as such, and, angered by what he perceived as Webb's deception and concealment of important program problems from Congress, he questioned NASA's selection of North American as prime contractor. Seamans later wrote that Webb roundly chastised him in the cab ride leaving the hearing, for volunteering information which led to the disclosure of Phillips' memo. On May 11, Webb issued a statement defending NASA's November 1961 selection of North American as the prime contractor for Apollo. This was followed on June9 by Seamans filing a seven-page memorandum documenting the selection process. Webb eventually provided a controlled copy of Phillips' memo to Congress. The Senate committee noted in its final report NASA's testimony that "the findings of the [Phillips] task force had no effect on the accident, did not lead to the accident, and were not related to the accident", but stated in its recommendations: Freshman Senators Edward W. Brooke III and Charles H. Percy jointly wrote an Additional Views section appended to the committee report, chastising NASA more strongly than Anderson for not having disclosed the Phillips review to Congress. Mondale wrote his own, even more strongly worded Additional View, accusing NASA of "evasiveness,... lack of candor,... patronizing attitude toward Congress... refusal to respond fully and forthrightly to legitimate Congressional inquiries, and... solicitous concern for corporate sensitivities at a time of national tragedy". The potential political threat to Apollo blew over, due in large part to the support of President Lyndon B. Johnson, who at the time still wielded a measure of influence with the Congress from his own Senatorial experience. He was a staunch supporter of NASA since its inception, had even recommended the Moon program to President John F. Kennedy in 1961, and was skilled at portraying it as part of Kennedy's legacy. Relations between NASA and North American deteriorated over the assignment of blame. North American argued unsuccessfully it was not responsible for the fatal error in spacecraft atmosphere design. Finally, Webb contacted Atwood, and demanded either he or Chief Engineer Harrison A. Storms resign. Atwood elected to fire Storms. On the NASA side, Joseph Shea resorted to barbiturates and alcohol in order to help him cope. NASA administrator James Webb became increasingly worried about Shea's mental state. Shea was asked to take an extended voluntary leave of absence, but Shea refused, threatening to resign rather than take leave. As a compromise, he agreed to meet with a psychiatrist and to abide by an independent assessment of his psychological fitness. This approach to remove Shea from his position was also unsuccessful. Finally, six months after the fire, Shea's superiors reassigned him to NASA headquarters in Washington, D.C. Shea felt that his new post was a "non-job," and left after only two months. Program recovery Gene Kranz called a meeting of his staff in Mission Control three days after the accident, delivering a speech which has subsequently become one of NASA's principles. Speaking of the errors and overall attitude surrounding the Apollo program before the accident, he said: "We were too 'gung-ho' about the schedule and we blocked out all of the problems we saw each day in our work. Every element of the program was in trouble and so were we." He reminded the team of the perils and mercilessness of their endeavor, and stated the new requirement that every member of every team in mission control be "tough and competent", requiring nothing less than perfection throughout NASA's programs. In 2003, following the Space Shuttle Columbia disaster, NASA administrator Sean O'Keefe quoted Kranz's speech, applying it to the Columbia crew. Command module redesign After the fire, the Apollo program was grounded for review and redesign. The command module was found to be extremely hazardous and, in some instances, carelessly assembled (for example, a misplaced wrench socket was found in the cabin). It was decided that the remaining Block I spacecraft would be used only for uncrewed Saturn V test flights. All crewed missions would use the Block II spacecraft, to which many command module design changes were made: The cabin atmosphere at launch was adjusted to 60% oxygen and 40% nitrogen at sea-level pressure: . During ascent the cabin rapidly vented down to , releasing approximately 2/3 of the gas originally present at launch. The vent then closed and the environmental control system maintained a nominal cabin pressure of as the spacecraft continued into vacuum. The cabin was then very slowly purged (vented to space and simultaneously replaced with 100% oxygen), so the nitrogen concentration gradually fell off to zero over the next day. Although the new cabin launch atmosphere was significantly safer than 100% oxygen, it still contained almost three times the amount of oxygen present in ordinary sea-level air (20.9% oxygen). This was necessary to ensure a sufficient partial pressure of oxygen when the astronauts removed their helmets after reaching orbit. (60% of five psi is three psi, compared to 60% of which is at launch, and 20.9% of which is in sea-level air.) The environment within the astronauts' pressure suits was not changed. Because of the rapid drop in cabin (and suit) pressures during ascent, decompression sickness was likely unless the nitrogen had been purged from the astronauts' tissues before launch. They would still breathe pure oxygen, starting several hours before launch, until they removed their helmets on orbit. Avoiding the "bends" was considered worth the residual risk of an oxygen-accelerated fire within a suit. Nylon used in the Block I suits was replaced in the Block II suits with Beta cloth, a non-flammable, highly melt-resistant fabric woven from fiberglass and coated with Teflon. Block II had already been planned to use a completely redesigned hatch which opened outward, and could be opened in less than five seconds. Concerns of accidental opening were addressed by using a cartridge of pressurized nitrogen to drive the release mechanism in an emergency, instead of the explosive bolts used on Project Mercury. Flammable materials in the cabin were replaced with self-extinguishing versions. Plumbing and wiring were covered with protective insulation. Aluminum tubing was replaced with stainless steel tubing that used brazed joints when possible. Thorough protocols were implemented for documenting spacecraft construction and maintenance. New mission naming scheme The astronauts' widows asked that Apollo 1 be reserved for the flight their husbands never made, and on April 24, 1967, Mueller, as Associate Administrator for Manned Space Flight, announced this change officially: AS-204 would be recorded as Apollo1, "first manned Apollo Saturn flight – failed on ground test". Even though three uncrewed Apollo missions (AS-201, AS-202, and AS-203) had previously occurred, only AS-201 and AS-202 carried spacecraft. Therefore, the next mission, the first uncrewed Saturn V test flight (AS-501) would be designated Apollo4, with all subsequent flights numbered sequentially in the order flown. The first three flights would not be renumbered, and the names Apollo2 and Apollo3 would officially go unused. Mueller considered AS-201 and AS-202, the first and second flights of the Apollo Block I CSM, as Apollo2 and3 respectively. The crewed flight hiatus allowed work to catch up on the Saturn V and lunar module, which were encountering their own delays. Apollo4 flew in November 1967. Apollo1's (AS-204) Saturn IB rocket was taken down from Launch Complex 34, later reassembled at Launch complex 37B and used to launch Apollo5, an uncrewed Earth orbital test flight of the first lunar module, LM-1, in January 1968. A second uncrewed Saturn V AS-502 flew as Apollo6 in April 1968, and Grissom's backup crew of Wally Schirra, Don Eisele, and Walter Cunningham, finally flew the orbital test mission as Apollo7 (AS-205), in a Block II CSM in October 1968. Memorials Gus Grissom and Roger Chaffee were buried at Arlington National Cemetery. Ed White was buried at West Point Cemetery on the grounds of the United States Military Academy in West Point, New York. NASA officials attempted to pressure Pat White, Ed White's widow, into allowing her husband also to be buried at Arlington, against what she knew to be his wishes; their efforts were foiled by astronaut Frank Borman. The names of the Apollo 1 crew are among those of multiple astronauts who have died in the line of duty, listed on the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Merritt Island, Florida. President Jimmy Carter awarded the Congressional Space Medal of Honor posthumously to Grissom on October 1, 1978. President Bill Clinton awarded it to White and Chaffee on December 17, 1997. An Apollo 1 mission patch was left on the Moon's surface after the first crewed lunar landing by Apollo11 crew members Neil Armstrong and Buzz Aldrin. The Apollo15 mission left on the surface of the Moon a tiny memorial statue, Fallen Astronaut, along with a plaque containing the names of the Apollo1 astronauts, among others including Soviet cosmonauts, who perished in the pursuit of human space flight. Launch Complex 34 After the Apollo 1 fire, Launch Complex 34 was subsequently used only for the launch of Apollo7 and later dismantled down to the concrete launch pedestal, which remains at the site () along with a few other concrete and steel-reinforced structures. The pedestal bears two plaques commemorating the crew. The "Ad Astra per aspera" plaque for "the crew of Apollo 1" is seen in the 1998 film Armageddon. The "Dedicated to the living memory of the crew of the Apollo 1" plaque is quoted at the end of Wayne Hale's Requiem for the NASA Space Shuttle program. Each year the families of the Apollo1 crew are invited to the site for a memorial, and the Kennedy Space Center Visitor Complex includes the site during the tour of the historic Cape Canaveral launch sites. In January 2005, three granite benches, built by a college classmate of one of the astronauts, were installed at the site on the southern edge of the launch pad. Each bears the name of one of the astronauts and his military service insignia. Stars, landmarks on the Moon and Mars Apollo astronauts frequently aligned their spacecraft inertial navigation platforms and determined their positions relative to the Earth and Moon by sighting sets of stars with optical instruments. As a practical joke, the Apollo1 crew named three of the stars in the Apollo catalog after themselves and introduced them into NASA documentation. Gamma Cassiopeiae became Navi – Ivan (Gus Grissom's middle name) spelled backwards. Iota Ursae Majoris became Dnoces – "Second" spelled backwards, for Edward H. White II. And Gamma Velorum became Regor – Roger (Chaffee) spelled backwards. These names quickly stuck after the Apollo1 accident and were regularly used by later Apollo crews. Craters on the Moon and hills on Mars are named after the three Apollo1 astronauts. Civic and other memorials Three public schools in Huntsville, Alabama (home of George C. Marshall Space Flight Center and the U.S. Space & Rocket Center): Virgil I. Grissom High School, Ed White Middle School, and the Chaffee Elementary School. Ed White II Elementary e-STEM (Elementary-Science, Technology, Engineering and Math) Magnet school in El Lago, Texas, near the Johnson Space Center. White lived in El Lago (next door to Neil Armstrong). There are Grissom or Virgil I. Grissom middle schools in Mishawaka, Indiana, Sterling Heights, Michigan, and Tinley Park, Illinois. Virgil Grissom Elementary School in Princeton, Iowa, and the Edward White Elementary School in Eldridge, Iowa, are both part of the North Scott Community School District also naming the other three elementary schools after astronauts Neil Armstrong, John Glenn, and Alan Shepard. School #7 in Rochester, New York, is also known as the Virgil I. Grissom School. In the early 1970s, three streets in Amherst, New York, were named for Chaffee, White and Grissom. By 1991, when no homes had been built on Grissom Drive, the area was repurposed as commercial property; the Grissom street sign was removed and the street renamed Classics V Drive for the banquet hall that occupied the land. The THUMS Islands, four man-made oil drilling islands in the harbor off Long Beach, California, are named Grissom, White, Chaffee and Theodore Freeman. The Roger B. Chaffee Planetarium is located at the Grand Rapids Public Museum. Roger B. Chaffee Memorial Boulevard in Wyoming, Michigan, the largest suburb of Grand Rapids, Michigan, which is today an industrial park, but exists on the site of the former Grand Rapids Airport. A large portion of the north-south runway is used today as the roadway of the Roger B. Chaffee Memorial Boulevard. Roger B. Chaffee Scholarship Fund in Grand Rapids, Michigan, each year in memory of Chaffee honors one student who intends to pursue a career in engineering or the sciences Three adjacent parks in Fullerton, California, are each named for Grissom, Chaffee and White. The parks are located near a former Hughes Aircraft research and development facility. A Hughes subsidiary, Hughes Space and Communications Company, built components for the Apollo program. Two buildings on the campus of Purdue University in West Lafayette, Indiana, are named for Grissom and Chaffee (both Purdue alumni). Grissom Hall houses the School of Industrial Engineering (and was home to the School of Aeronautics and Astronautics before it moved into the new Neil Armstrong Hall of Engineering). Chaffee Hall, constructed in 1965, is the administration complex of Maurice J. Zucrow Laboratories where combustion, propulsion, gas dynamics, and related fields are studied. The Chaffee Hall contains a 72-seat auditorium, offices, and administrative staff. A tree for each astronaut was planted in NASA's Astronaut Memorial Grove at the Johnson Space Center in Houston, Texas, not far from the Saturn V building, along with trees for each astronaut from the Challenger and Columbia disasters. Tours of the space center pause briefly near the grove for a moment of silence, and the trees can be seen from nearby NASA Road 1. In 1968, Bunker Hill Air Force Base near Peru, Indiana was renamed Grissom Air Force Base. The three-letter code for the VOR air navigation beacon at the base is GUS. Remains of CM-012 The Apollo 1 command module has never been on public display. After the accident, the spacecraft was removed and taken to Kennedy Space Center to facilitate the review board's disassembly in order to investigate the cause of the fire. When the investigation was complete, it was moved to the NASA Langley Research Center in Hampton, Virginia, and placed in a secured storage warehouse. On February 17, 2007, the parts of CM-012 were moved approximately to a newer, environmentally controlled warehouse. Only a few weeks earlier, Gus Grissom's brother Lowell publicly suggested CM-012 be permanently entombed in the concrete remains of Launch Complex 34. On January 27, 2017, the 50th anniversary of the fire, NASA put the hatch from Apollo1 on display at the Saturn V Rocket Center at Kennedy Space Center Visitors Complex. KSC's Visitor Complex also houses memorials that include parts of Challenger and Columbia, located in the Space Shuttle Atlantis exhibit. "This is way, way, way long overdue. But we're excited about it," said Scott Grissom, Gus Grissom's older son. In popular culture The accident and its aftermath are the subject of episode2, "Apollo One", of the 1998 HBO miniseries From the Earth to the Moon. The mission and accident are covered in the 2015 ABC television series The Astronaut Wives Club, episodes8 "Rendezvous" and9 "Abort". The incident is the subject of the Public Service Broadcasting track "Fire in the Cockpit" from their 2015 album The Race for Space. The incident is featured in the 2018 movie First Man. A short dramatization of the accident is featured at the beginning of the 1995 film Apollo 13. The accident and a subsequent emphasis on safety within NASA are the subject of investigation in the first two episodes of the Apple TV+ series For All Mankind. See also List of spaceflight-related accidents and incidents STS-1 – First Space Shuttle flight, three technicians asphyxiated on the launch pad after a countdown test STS-51-L – Space Shuttle Challenger, America's first in-flight fatality STS-107 – Space Shuttle Columbia, America's first return-flight fatality Valentin Bondarenko – a Soviet cosmonaut-in-training, died in a high-oxygen fire in an experimental chamber Soyuz 1 – First Soviet spaceflight death Soyuz 11 – Loss of an entire Soviet spacecraft crew References Notes Citations Further reading External links Baron testimony at investigation before Olin Teague, 21. April 1967 Apollo 204 Review Board Final Report , NASA's final report on its investigation, April 5, 1967 Final report of the U.S. Senate investigation, January 30, 1968 Apollo Operations Handbook, Command and Service Module, Spacecraft 012 (The flight manual for CSM 012) CBS News Special Report on Apollo 1 Disaster, January 27, 1967, C-SPAN Apollo program missions Fires in Florida 1967 fires in the United States 1967 in Florida Spacecraft launched by Saturn rockets Gus Grissom Ed White (astronaut)

1966

https://en.wikipedia.org/wiki/Apollo%2010

Apollo 10

Apollo 10 (May 18–26, 1969) was the fourth human spaceflight in the United States' Apollo program and the second to orbit the Moon. NASA, the mission's operator, described it as a "dress rehearsal" for the first Moon landing (Apollo 11, two months later). It was designated an "F"mission, intended to test all spacecraft components and procedures short of actual descent and landing. After the spacecraft reached lunar orbit, astronaut John Young remained in the Command and Service Module (CSM) while astronauts Thomas Stafford and Gene Cernan flew the Apollo Lunar Module (LM) to within of the lunar surface, the point at which powered descent for landing would begin on a landing mission. Then they rejoined Young in the CSM and, after the CSM completed its 31st orbit of the Moon, they returned safely to Earth. While NASA had considered attempting the first crewed lunar landing on Apollo 10, mission planners ultimately decided that it would be prudent to have a practice flight to hone the procedures and techniques. The crew encountered some problems during the flight: pogo oscillations during the launch phase and a brief, uncontrolled tumble of the LM ascent stage in lunar orbit during its solo flight. However, the mission accomplished its major objectives. Stafford and Cernan observed and photographed Apollo 11's planned landing site in the Sea of Tranquility. Apollo 10 spent 61 hours and 37 minutes orbiting the Moon, for about eight hours of which Stafford and Cernan flew the LM apart from Young in the CSM, and about eight days total in space. Additionally, Apollo 10 set the record for the highest speed attained by a crewed vehicle: 39,897 km/h (11.08 km/s or 24,791 mph) on May 26, 1969, during the return from the Moon. The mission's call signs were the names of the Peanuts characters Charlie Brown for the CSM and Snoopy for the LM, who became Apollo 10's semi-official mascots. Peanuts creator Charles Schulz also drew mission-related artwork for NASA. Framework Background By 1967, NASA had devised a list of mission types, designated by letters, that needed to be flown before a landing attempt, which would be the "G" mission. The early uncrewed flights were considered "A" or "B" missions, while Apollo 7, the crewed-flight test of the Command and Service Module (CSM), was the "C" mission. The first crewed orbital test of the Lunar Module (LM) was accomplished on Apollo 9, the "D" mission. Apollo 8, flown to the Moon's orbit without an LM, was considered a "C-prime" mission, but its success gave NASA the confidence to skip the "E" mission, which would have tested the full Apollo spacecraft in medium or high Earth orbit. Apollo 10, the dress rehearsal for the lunar landing, was to be the "F" mission. NASA considered skipping the "F" mission as well and attempting the first lunar landing on Apollo 10. Some with the agency advocated this, feeling it senseless to bring astronauts so close to the lunar surface, only to turn away. Although the lunar module intended for Apollo 10 was too heavy to perform the lunar mission, the one intended for Apollo 11 could be substituted by delaying Apollo 10 a month from its May 1969 planned launch. NASA official George Mueller favored a landing attempt on ; he was known for his aggressive approach to moving the Apollo program forward. However, Director of Flight Operations Christopher C. Kraft and others opposed this, feeling that new procedures would have to be developed for a rendezvous in lunar orbit and that NASA had incomplete information regarding the Moon's mass concentrations, which might throw off the spacecraft's trajectory. Lieutenant General Sam Phillips, the Apollo Program Manager, listened to the arguments on both sides and decided that having a dress rehearsal was crucial. Crew and key Mission Control personnel On November 13, 1968, NASA announced the crew members of Apollo 10. Thomas P. Stafford, the commander, was 38 years old at the time of the mission. A 1952 graduate of the Naval Academy, he was commissioned in the Air Force. Selected for the second group of astronauts in 1962, he flew as pilot of Gemini 6A (1965) and command pilot of Gemini 9A (1966). John Young, the command module pilot, was 38 years old and a commander in the Navy at the time of Apollo 10. A 1952 graduate of Georgia Tech who entered the Navy after graduation and became a test pilot in 1959, he was selected as a Group 2 astronaut alongside Stafford. He flew in Gemini 3 with Gus Grissom in 1965, becoming the first American not of the Mercury Seven to fly in space. Young thereafter commanded Gemini 10 (1966), flying with Michael Collins. Eugene Cernan, the lunar module pilot, was a commander in the Navy at the time of Apollo 10. A 1952 graduate of Purdue University, he entered the Navy after graduation. Selected for the third group of astronauts in 1963, Cernan flew with Stafford on Gemini 9A before his assignment to Apollo 10. With five prior flights among them, the Apollo 10 crew was the most experienced to reach space until the Space Shuttle era, and the first American space mission whose crew were all spaceflight veterans. The backup crew for Apollo 10 was L. Gordon Cooper Jr as commander, Donn F. Eisele as command module pilot, and Edgar D. Mitchell as lunar module pilot. By the normal crew rotation in place during Apollo, Cooper, Eisele, and Mitchell would have flown on Apollo 13, but Cooper and Eisele never flew again. Deke Slayton, Director of Flight Crew Operations, felt that Cooper did not train as hard as he could have. Eisele was blackballed because of incidents during Apollo 7, which he had flown as CMP and which had seen conflict between the crew and ground controllers; he had also been involved in a messy divorce. Slayton only assigned the two as backups because he had few veteran astronauts available. Cooper and Eisele were replaced by Alan Shepard and Stuart Roosa respectively. Feeling they needed additional training time, George Mueller rejected the Apollo 13 crew. The crew was switched to Apollo 14, which saw Shepard and Mitchell walk on the Moon. For projects Mercury and Gemini, a prime and a backup crew had been designated, but for Apollo, a third group of astronauts, known as the support crew, was also designated. Slayton created the support crews early in the Apollo program on the advice of McDivitt, who would lead Apollo 9. McDivitt believed that, with preparation going on in facilities across the U.S., meetings that needed a member of the flight crew would be missed. Support crew members were to assist as directed by the mission commander. Usually low in seniority, they assembled the mission's rules, flight plan, and checklists, and kept them updated. For Apollo 10, they were Joe Engle, James Irwin, and Charles Duke. Flight directors were Gerry Griffin, Glynn Lunney, Milt Windler, and Pete Frank. Flight directors during Apollo had a one-sentence job description: "The flight director may take any actions necessary for crew safety and mission success." CAPCOMs were Duke, Engle, Jack Lousma, and Bruce McCandless II. Call signs and mission insignia The command module was given the call sign "Charlie Brown" and the lunar module the call sign "Snoopy". These were taken from the characters in the comic strip, Peanuts, Charlie Brown and Snoopy. These names were chosen by the astronauts with the approval of Charles Schulz, the strip's creator, who was uncertain it was a good idea, since Charlie Brown was always a failure. The choice of names was deemed undignified by some at NASA, as were the choices for Apollo 9's CM and LM ("Gumdrop" and "Spider"). Public relations chief Julian Scheer urged a change for the lunar landing mission. But for Apollo 10, according to Cernan, "The P.R.-types lost this one big-time, for everybody on the planet knew the klutzy kid and his adventuresome beagle, and the names were embraced in a public relations bonanza." Apollo 11's call signs were "Columbia" for the command module and "Eagle" for the lunar module. Snoopy, Charlie Brown's dog, was chosen for the call sign of the lunar module since it was to "snoop" around the landing site, with Charlie Brown given to the command module as Snoopy's companion. Snoopy had been associated for some time with the space program, with workers who performed in an outstanding manner awarded silver "Snoopy pins", and Snoopy posters were seen at NASA facilities, with the cartoon dog having traded in his World War I aviator's headgear for a space helmet. Stafford stated that, given the pins, "the choice of Snoopy [as call sign] was a way of acknowledging the contributions of the hundreds of thousands of people who got us there". The use of the dog was also appropriate since, in the comic strip, Snoopy had journeyed to the Moon the year before, thus defeating, according to Schulz, "the Americans, the Russians, and that stupid cat next door". The shield-shaped mission insignia shows a large, three-dimensional Roman numeral X sitting on the Moon's surface, in Stafford's words, "to show that we had left our mark". Although it did not land on the Moon, the prominence of the number represents the contributions the mission made to the Apollo program. A CSM circles the Moon as an LM ascent stage flies up from its low pass over the lunar surface with its engine firing. The Earth is visible in the background. On the mission patch, a wide, light blue border carries the word APOLLO at the top and the crew names around the bottom. The patch is trimmed in gold. The insignia was designed by Allen Stevens of Rockwell International. Training and preparation Apollo 10, the "F" mission or dress rehearsal for the lunar landing, had as its primary objectives to demonstrate crew, space vehicle and mission support facilities performance during a crewed mission to lunar orbit, and to evaluate the performance of the lunar module there. In addition, it was to attempt photography of Apollo Landing Site 2 (ALS-2) in the Sea of Tranquillity, the contemplated landing site for Apollo 11. According to Stafford, Our flight was to take the first lunar module to the moon. We would take the lunar module, go down to within about ten miles above the moon, nine miles above the mountains, radar map, photo map, pick out the first landing site, do the first rendezvous around the moon, pick out some future landing sites, and come home. Apollo 10 was to adhere as closely as possible to the plans for Apollo 11, including its trajectory to and from lunar orbit, the timeline of mission events, and even the angle of the Sun at ALS-2. However, no landing was to be attempted. ALS-1, given that number because it was the furthest to the east of the candidate sites, and also located in the Sea of Tranquility, had been extensively photographed by Apollo 8 astronauts; at the suggestion of scientist-astronaut Harrison Schmitt, the launch of Apollo 10 had been postponed a day so ALS-2 could be photographed under proper conditions. ALS-2 was chosen as the lunar landing site since it was relatively smooth, of scientific interest, and ALS-1 was deemed too far to the east. Thus, when Apollo 10's launch date was announced on January 10, 1969, it was shifted from its placeholder date of May 1 to May 17, rather than to May 16. On March 17, 1969, the launch was slipped one day to May 18, to allow for a better view of ALS-3, to the west of ALS-2. Another deviation from the plans for Apollo 11 was that Apollo 10 was to spend an additional day in lunar orbit once the CSM and LM rendezvoused; this was to allow time for additional testing of the LM's systems, as well as for photography of possible future Apollo landing sites. The Apollo 10 astronauts undertook five hours of formal training for each hour of the mission's eight-day duration. This was in addition to the normal mission preparations such as technical briefings, pilot meetings and study. They took part in the testing of the CSM at the Downey, California, facility of its manufacturer, North American Rockwell, and of the LM at Grumman in Bethpage, New York. They visited Cambridge, Massachusetts, for briefings on the Apollo Guidance Computer at the Massachusetts Institute of Technology Instrumentation Laboratory. They each spent more than 300 hours in simulators of the CM or LM at the Manned Spacecraft Center (MSC) in Houston and at Kennedy Space Center (KSC) in Florida. To train for the high-acceleration conditions they would experience in returning to Earth's atmosphere, they endured MSC's centrifuge. Lunar landing capability While Apollo 10 was meant to follow the procedures of a lunar landing mission to the point of powered descent, Apollo 10's LM was not capable of landing and returning to lunar orbit. The ascent stage was loaded with the amount of fuel and oxidizer it would have had remaining if it had lifted off from the surface and reached the altitude at which the Apollo 10 ascent stage fired; this was only about half the total amount required for lift off and rendezvous with the CSM. The mission-loaded LM weighed , compared to for the Apollo 11 LM which made the first landing. Additionally, the software necessary to guide the LM to a landing was not available at the time of Apollo 10. Craig Nelson wrote in his book Rocket Men that NASA took special precaution to ensure Stafford and Cernan would not attempt to make the first landing. Nelson quoted Cernan as saying "A lot of people thought about the kind of people we were: 'Don't give those guys an opportunity to land, 'cause they might!' So the ascent module, the part we lifted off the lunar surface with, was short-fueled. The fuel tanks weren't full. So had we literally tried to land on the Moon, we couldn't have gotten off." Mueller, NASA's Associate Administrator for Manned Space Flight, stated, There had been some speculation about whether or not the crew might have landed, having gotten so close. They might have wanted to, but it was impossible for that lunar module to land. It was an early design that was too heavy for a lunar landing, or, to be more precise, too heavy to be able to complete the ascent back to the command module. It was a test module, for the dress rehearsal only, and that was the way it was used. Equipment The descent stage of the LM was delivered to KSC on October 11, 1968, and the ascent stage arrived five days later. They were mated on November 2. The Service Module (SM) and Command Module (CM) arrived on November 24 and were mated two days later. Portions of the Saturn V launch vehicle arrived during November and December 1968, and the complete launch vehicle was erected in the Vehicle Assembly Building (VAB) on December 30. After being tested in an altitude chamber, the CSM was placed atop the launch vehicle on February 6, 1969. The completed space vehicle was rolled out to Launch Complex 39B on March 11, 1969—the fact that it had been assembled in the VAB's High Bay 2 (the first time it had been used) required the crawler to exit the rear of the VAB before looping around the building and joining the main crawlerway, proceeding to the launch pad. This rollout, using Mobile Launch Platform-3 (MLP-3), happened eight days after the launch of Apollo 9, while that mission was still in orbit. The launch vehicle for Apollo 10 was a Saturn V, designated AS-505, the fifth flight-ready Saturn V to be launched and the third to take astronauts to orbit. The Saturn V differed from that used on Apollo 9 in having a lower dry weight (without propellant) in its first two stages, with a significant reduction to the interstage joining them. Although the S-IVB third stage was slightly heavier, all three stages could carry a greater weight of propellant, and the S-II second stage generated more thrust than that of Apollo 9. The Apollo spacecraft for the Apollo 10 mission was composed of Command Module 106 (CM-106), Service Module 106 (SM-106, together with the CM known as CSM-106), Lunar Module 4 (LM-4), a spacecraft-lunar module adapter (SLA), numbered as SLA-13A, and a launch escape system. The SLA was a mating structure joining the Instrument Unit on the S-IVB stage of the Saturn V launch vehicle and the CSM, and acted as a housing for the LM, while the Launch Escape System (LES) contained rockets to propel the CM to safety if there was an aborted launch. At about 76.99 metric tons, Apollo 10 would be the heaviest spacecraft to reach orbit to that point. Mission highlights Launch and outbound trip Apollo 10 launched from KSC on May 18, 1969, at 12:49:00 EDT (16:49:00 UT), at the start of a 4.5-hour launch window. The launch window was timed to secure optimal lighting conditions at Apollo Landing Site 2 at the time of the LM's closest approach to the site days later. The launch followed a countdown that had begun at 21:00:00 EDT on May 16 (01:00:00 UT on May 17). Because preparations for Apollo 11 had already begun at Pad 39A, Apollo 10 launched from Pad 39B, becoming the only Apollo flight to launch from that pad and the only one to be controlled from its Firing Room 3. Problems that arose during the countdown were dealt with during the built-in holds, and did not delay the mission. On the day before launch, Cernan had been stopped for speeding while returning from a final visit with his wife and child. Lacking identification and under orders to tell no one who he was, Cernan later attested in his autobiography that he had feared being arrested. Launch pad leader Gunther Wendt, who had pulled over nearby after recognizing Cernan, explained the situation to the police officer, who then released Cernan despite the officer's skepticism that Cernan was an astronaut. The crew experienced a somewhat rough ride on the way to orbit due to pogo oscillations. About 12 minutes after liftoff, the spacecraft entered a low Earth orbit with a high point of and a low point of . All appeared to be normal during the systems review period in Earth orbit, and the crew restarted the S-IVB third stage to achieve trans-lunar injection (TLI) and send them towards the Moon. The vehicle shook again while executing the TLI burn, causing Cernan to be concerned that they might have to abort. However, the TLI burn was completed without incident. Young then performed the transposition, docking, and extraction maneuver, separating the CSM from the S-IVB stage, turning around, and docking its nose to the top of the lunar module (LM), before separating from the S-IVB. Apollo 10 was the first mission to carry a color television camera inside the spacecraft, and mission controllers in Houston watched as Young performed the maneuver. Soon thereafter, the large television audience was treated to color views of the Earth. One problem that was encountered was that the mylar cover of the CM's hatch had pulled loose, spilling quantities of fiberglass insulation into the tunnel, and then into both the CM and LM. The S-IVB was fired by ground command and sent into solar orbit with a period of 344.88 days. The crew settled in for the voyage to the Moon. They had a light workload, and spent much of their time studying the flight plan or sleeping. They made five more television broadcasts back to Earth, and were informed that more than a billion people had watched some part of their activities. In June 1969, the crew would accept a special Emmy Award on behalf of the first four Apollo crews for their television broadcasts from space. One slight course correction was necessary; this occurred at 26:32:56.8 into the mission and lasted 7.1 seconds. This aligned Apollo 10 with the trajectory Apollo 11 was expected to take. One issue the crew encountered was bad-tasting food, as Stafford apparently used a double dose of chlorine in their drinking water, which had to be placed in their dehydrated food to reconstitute it. Lunar orbit Arrival and initial operations At 75:55:54 into the mission, above the far side of the Moon, the CSM's service propulsion system (SPS) engine was fired for 356.1 seconds to slow the spacecraft into a lunar orbit of . This was followed, after two orbits of the Moon, with a 13.9-second firing of the SPS to circularize the orbit to at 80:25:08.1. Within the first couple of hours after the initial lunar orbit insertion burn and following the circularization burn, the crew turned to tracking planned landmarks on the surface below to record observations and take photographs. In addition to ALS-1, ALS-2, and ALS-3, the crew of Apollo 10 observed and photographed features on the near and far sides of the Moon, including the craters Coriolis, King, and Papaleksi. Shortly after the circularization burn, the crew partook in a scheduled half-hour color-television broadcast with descriptions and video transmissions of views of the lunar surface below. About an hour after the second burn, the LM crew of Stafford and Cernan entered the LM to check out its systems. They were met with a blizzard of fiberglass particles from the earlier problem, which they cleaned up with a vacuum cleaner as best they could. Stafford had to help Cernan remove smaller bits from his hair and eyebrows. Stafford later commented that Cernan looked like he just came out of a chicken coop, and that the particles made them itch and got into the air conditioning system, and they were scraping it off the filter screens for the rest of the mission. This was merely an annoyance, but the particles may have gotten into the docking ring joining the two craft and caused it to misalign slightly. Mission Control determined that this was still within safe limits. The flight of Snoopy After Stafford and Cernan checked out Snoopy, they returned to Charlie Brown for a rest. Then they re-entered Snoopy and undocked it from the CSM at 98:29:20. Young, who remained in the CSM, became the first person to fly solo in lunar orbit. After undocking, Stafford and Cernan deployed the LM's landing gear and inspected the LM's systems. The CSM performed an 8.3-second burn with its RCS thrusters to separate itself from the LM by about 30 feet, after which Young visually inspected the LM from the CSM. The CSM performed another separation burn, this time separating the two spacecraft by about . The LM crew then performed the descent orbit insertion maneuver by firing their descent engine for 27.4 seconds at 99:46:01.6, and tested their craft's landing radar as they approached the altitude where the subsequent Apollo 11 mission would begin powered descent to land on the Moon. Previously, the LM's landing radar had only been tested under terrestrial conditions. While the LM executed these maneuvers, Young monitored the location and status of the LM from the CSM, standing by to rescue the LM crew if necessary. Cernan and Stafford surveyed ALS-2, coming within of the surface at a point 15 degrees to its east, then performed a phasing burn at 100:58:25.93, thrusting for just under 40 seconds to allow a second pass at ALS-2, when the craft came within of the Moon, its closest approach. Reporting on his observations of the site from the LM's low passes, Stafford indicated that ALS-2 seemed smoother than he had expected and described its appearance as similar to the desert surrounding Blythe, California; but he observed that Apollo 11 could face rougher terrain downrange if it approached off-target. Based upon Apollo 10's observations from relatively low altitude, NASA mission planners became comfortable enough with ALS-2 to confirm it as the target site for Apollo 11. The next action was to prepare to separate the LM ascent stage from the descent stage, to jettison the descent stage, and fire the Ascent Propulsion System to return the ascent stage towards the CSM. As Stafford and Cernan prepared to do so, the LM began to gyrate out of control. Alarmed, Cernan exclaimed, "Son of a bitch!" into a hot mic being broadcast live, which, combined with other language used by the crew during the mission, generated some complaints back on Earth. Stafford discarded the descent stage about five seconds after the tumbling began and fought to regain control manually, suspecting that there might have been an "open thruster", or a thruster stuck firing. He did so in time to orient the spacecraft to rejoin Charlie Brown. The problem was traced to a switch controlling the mode of the abort guidance system; it was to be moved as part of the procedure, but both of the crew members switched it, thus returning it to the original position. Had they fired Snoopy in the wrong direction, they might have missed the rendezvous with Charlie Brown or crashed into the Moon. Once Stafford had regained control of the LM ascent stage, which took about eight seconds, the pair fired the ascent engine at the lowest point of the LM's orbit, mimicking the orbital insertion maneuver after launch from the lunar surface in a later landing mission. Snoopy coasted on that trajectory for about an hour before firing the engine once more to further fine-tune its approach to Charlie Brown. Snoopy rendezvoused with and re-docked with Charlie Brown at 106:22:02, just under eight hours after undocking. The docking was telecast live in color from the CSM. Once Cernan and Stafford had re-entered Charlie Brown, Snoopy was sealed off and separated from Charlie Brown. The rest of the LM's ascent-stage engine fuel was burned to send it on a trajectory past the Moon and into a heliocentric orbit. It was the only Apollo LM to meet this fate; the Apollo 11 ascent stage would be left in lunar orbit to crash, while post-Apollo 11 ascent stages were steered into the Moon to obtain readings from seismometers placed on the surface, except for Apollo 13's ascent stage, which the crew used as a "life boat" to get safely back to Earth before releasing it to burn up in Earth's atmosphere, and Apollo 16's, which NASA lost control of after jettison. Return to Earth After ejecting the LM ascent stage, the crew slept and performed photography and observation of the lunar surface from orbit. Though the crew located 18 landmarks on the surface and took photographs of various surface features, crew fatigue necessitated the cancellation of two scheduled television broadcasts. Thereafter, the main Service Propulsion System engine of the CSM re-ignited for about 2.5 minutes to set Apollo 10 on a trajectory towards Earth, achieving such a trajectory at 137:39:13.7. As it departed lunar orbit, Apollo 10 had orbited the Moon 31 times over the span of about 61 hours and 37 minutes. During their journey back to Earth, the crew performed some observational activities which included star-Earth horizon sightings for navigation. The crew also performed a scheduled test to gauge the reflectivity of the CSM's high-gain antenna and broadcast six television transmissions of varying durations to show views inside the spacecraft and of the Earth and Moon from the crew's vantage point. Cernan reported later that he and his crewmates became the first to "successfully shave in space" during the return trip, using a safety razor and thick shaving gel, as such items had been deemed a safety hazard and prohibited on earlier flights. The crew fired the engine of the CSM for the only mid-course-correction burn required during the return trip at 188:49:58, a few hours before separation of the CM from the SM. The burn lasted about 6.7 seconds. As the spacecraft rapidly approached Earth on the final day of the mission, the Apollo 10 crew traveled faster than any humans before or since, relative to Earth: 39,897 km/h (11.08 km/s or 24,791 mph). This is because the return trajectory was designed to take only 42 hours rather than the normal 56. The Apollo 10 crew also traveled farther than any humans before or since from their (Houston) homes: (though the Apollo 13 crew was 200 km farther away from Earth as a whole). While most Apollo missions orbited the Moon at from the lunar surface, the distance between the Earth and Moon varies by about , between perigee and apogee, throughout each lunar month, and the Earth's rotation makes the distance to Houston vary by at most another each day. The Apollo 10 crew reached the farthest point in their orbit around the far side of the Moon at about the same time Earth's rotation put Houston nearly a full Earth diameter farther away. At 191:33:26, the CM (which contained the crew) separated from the SM in preparation for reentry, which occurred about 15 minutes later at 191:48:54.5. Splashdown of the CM occurred about 15 minutes after reentry in the Pacific Ocean about east of American Samoa on May 26, 1969, at 16:52:23 UTC and mission elapsed time 192:03:23. The astronauts were recovered by . They spent about four hours aboard, during which they took a congratulatory phone call from President Richard Nixon. As they had not made contact with the lunar surface, Apollo 10's crew were not required to quarantine like the first landing crews would be. They were flown to Pago Pago International Airport in Tafuna for a greeting reception, before boarding a C-141 cargo plane to Ellington Air Force Base near Houston. Aftermath Orbital operations and the solo maneuvering of the LM in partial descent to the lunar surface paved the way for the successful Apollo 11 lunar landing by demonstrating the capabilities of the mission hardware and systems. The crew demonstrated that the checkout procedures of the LM and initial descent and rendezvous could be accomplished within the allotted time, that the communication systems of the LM were sufficient, that the rendezvous and landing radars of the LM were operational in lunar orbit, and that the two spacecraft could be adequately monitored by personnel on Earth. Additionally, the precision of lunar orbital navigation improved with Apollo 10 and, combined with data from Apollo 8, NASA expected that it had achieved a level of precision sufficient to execute the first crewed lunar landing. After about two weeks of Apollo 10 data analysis, a NASA flight readiness team cleared Apollo 11 to proceed with its scheduled July 1969 flight. On July 16, 1969, the next Saturn V to launch carried the astronauts of Apollo 11: Neil Armstrong, Buzz Aldrin, and Michael Collins. On July 20, Armstrong and Aldrin landed on the Moon, and four days later the three astronauts returned to Earth, fulfilling John F. Kennedy's challenge to Americans to land astronauts on the Moon and return them safely to Earth by the end of the 1960s. In July 1969, Stafford replaced Alan Shepard as Chief Astronaut, and then became deputy director of Flight Crew Operations under Deke Slayton. In his memoirs, Stafford wrote that he could have put his name back in the flight rotation, but wanted managerial experience. In 1972, Stafford was promoted to brigadier general and assigned to command the American portion of the Apollo–Soyuz Test Project, which flew in July 1975. He commanded the Air Force Flight Test Center at Edwards Air Force Base in California, and retired in November 1979 as a lieutenant general. Young commanded the Apollo 16 lunar landing mission flown in April 1972. From 1974 to 1987, Young served as Chief Astronaut, commanding the STS-1 (1981) and STS-9 (1983) Space Shuttle missions in April 1981 and November 1983, respectively, and retired from NASA's Astronaut Corps in 2004. Gene Cernan commanded the final Apollo lunar mission, Apollo 17, flown in December 1972. Cernan retired from NASA and the Navy as a captain in 1976. Hardware disposition The Smithsonian has been accountable for the command module Charlie Brown since 1970. The spacecraft was on display in several countries until it was placed on loan to the London Science Museum in 1978. Charlie Brown'''s SM was jettisoned just before re-entry and burned up in the Earth's atmosphere, its remnants scattering in the Pacific Ocean. After translunar injection, the Saturn V's S-IVB third stage was accelerated past Earth escape velocity to become space debris; , it remains in a heliocentric orbit. The ascent stage of the Lunar Module Snoopy was jettisoned into a heliocentric orbit. Snoopys ascent stage orbit was not tracked after 1969, and its whereabouts were unknown. In 2011, a group of amateur astronomers in the UK started a project to search for it. In June 2019, the Royal Astronomical Society announced a possible rediscovery of Snoopy, determining that small Earth-crossing asteroid 2018 AV2 is likely to be the spacecraft with "98%" certainty. It is the only once-crewed spacecraft known to still be in outer space without a crew. Snoopy's descent stage was jettisoned in lunar orbit; its current location is unknown, though it may have eventually crashed into the Moon as a result of orbital decay. Phil Stooke, a planetary scientist who studied the lunar crash sites of the LM's ascent stages, wrote that the descent stage "crashed at an unknown location", and another source stated that the descent stage "eventually impact(ed) within a few degrees of the equator on the near side". Richard Orloff and David M. Harland, in their sourcebook on Apollo, stated that "the descent stage was left in the low orbit, but perturbations by 'mascons' would have caused this to decay, sending the stage to crash onto the lunar surface". Images See also List of artificial objects on the Moon List of vehicle speed records Notes References Bibliography External links "Apollo 10" at Encyclopedia Astronautica NSSDC Master Catalog at NASA Apollo 10 Flight JournalNASA reports The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 "Table 2-38. Apollo 10 Characteristics" from NASA Historical Data Book: Volume III: Programs and Projects 1969–1978 by Linda Neuman Ezell, NASA History Series (1988)Multimedia' Apollo 10: "To Sort Out the Unknowns"'' Official NASA/JSC documentary film, JSC-519 (1969) Apollo 10 16mm onboard film part 1, part 2 raw footage taken from Apollo 10 at the Internet Archive Mission Transcripts: Apollo 10 at NASA's Lyndon B. Johnson Space Center Images from Apollo 10 at NASA's Kennedy Space Center Apollo launch and mission videos at ApolloTV.net Spacecraft launched in 1969 1969 in the United States Apollo 10 Crewed missions to the Moon Peanuts (comic strip) Spacecraft which reentered in 1969 Articles containing video clips May 1969 events Spacecraft launched by Saturn rockets John Young (astronaut) Gene Cernan Thomas P. Stafford

1967

https://en.wikipedia.org/wiki/Apollo%2012

Apollo 12

Apollo 12 (November 14–24, 1969) was the sixth crewed flight in the United States Apollo program and the second to land on the Moon. It was launched on November 14, 1969, by NASA from the Kennedy Space Center, Florida. Commander Charles "Pete" Conrad and Lunar Module Pilot Alan L. Bean performed just over one day and seven hours of lunar surface activity while Command Module Pilot Richard F. Gordon remained in lunar orbit. Apollo 12 would have attempted the first lunar landing had Apollo 11 failed, but after the success of Neil Armstrong's mission, Apollo 12 was postponed by two months, and other Apollo missions also put on a more relaxed schedule. More time was allotted for geologic training in preparation for Apollo 12 than for Apollo 11, Conrad and Bean making several geology field trips in preparation for their mission. Apollo 12's spacecraft and launch vehicle were almost identical to Apollo 11's. One addition was hammocks to allow Conrad and Bean to rest more comfortably on the Moon. Shortly after being launched on a rainy day at Kennedy Space Center, Apollo 12 was twice struck by lightning, causing instrumentation problems but little damage. Switching to the auxiliary power supply resolved the data relay problem, saving the mission. The outward journey to the Moon otherwise saw few problems. On November 19, Conrad and Bean achieved a precise landing at their expected location within walking distance of the Surveyor 3 robotic probe, which had landed on April 20, 1967. In making a pinpoint landing, they showed that NASA could plan future missions in the expectation that astronauts could land close to sites of scientific interest. Conrad and Bean carried the Apollo Lunar Surface Experiments Package, a group of nuclear-powered scientific instruments, as well as the first color television camera taken by an Apollo mission to the lunar surface, but transmission was lost after Bean accidentally pointed the camera at the Sun and its sensor was destroyed. On the second of two moonwalks, they visited Surveyor 3 and removed parts for return to Earth. Lunar Module Intrepid lifted off from the Moon on November 20 and docked with the command module, which subsequently traveled back to Earth. The Apollo 12 mission ended on November 24 with a successful splashdown. Crew and key Mission Control personnel The commander of the all-Navy Apollo 12 crew was Charles "Pete" Conrad, who was 39 years old at the time of the mission. After receiving a bachelor's degree in aeronautical engineering from Princeton University in 1953, he became a naval aviator, and completed United States Naval Test Pilot School at Patuxent River Naval Air Station. He was selected in the second group of astronauts in 1962, and flew on Gemini 5 in 1965, and as command pilot of Gemini 11 in 1966. Command Module Pilot Richard "Dick" Gordon, 40 years old at the time of Apollo 12, also became a naval aviator in 1953, following graduation from the University of Washington with a degree in chemistry, and completed test pilot school at Patuxent River. Selected as a Group 3 astronaut in 1963, he flew with Conrad on Gemini 11. The original Lunar Module pilot assigned to work with Conrad was Clifton C. Williams Jr., who was killed in October 1967 when the T-38 he was flying crashed near Tallahassee. When forming his crew, Conrad had wanted Alan L. Bean, a former student of his at the test pilot school, but had been told by Director of Flight Crew Operations Deke Slayton that Bean was unavailable due to an assignment to the Apollo Applications Program. After Williams's death, Conrad asked for Bean again, and this time Slayton yielded. Bean, 37 years old when the mission flew, had graduated from the University of Texas in 1955 with a degree in aeronautical engineering. Also a naval aviator, he was selected alongside Gordon in 1963, and first flew in space on Apollo 12. The three Apollo 12 crew members had backed up Apollo 9 earlier in 1969. The Apollo 12 backup crew was David R. Scott as commander, Alfred M. Worden as Command Module pilot, and James B. Irwin as Lunar Module pilot. They became the crew of Apollo 15. For Apollo, a third crew of astronauts, known as the support crew, was designated in addition to the prime and backup crews used on projects Mercury and Gemini. Slayton created the support crews because James McDivitt, who would command Apollo 9, believed that, with preparation going on in facilities across the US, meetings that needed a member of the flight crew would be missed. Support crew members were to assist as directed by the mission commander. Usually low in seniority, they assembled the mission's rules, flight plan, and checklists, and kept them updated; For Apollo 12, they were Gerald P. Carr, Edward G. Gibson and Paul J. Weitz. Flight directors were Gerry Griffin, first shift, Pete Frank, second shift, Clifford E. Charlesworth, third shift, and Milton Windler, fourth shift. Flight directors during Apollo had a one-sentence job description, "The flight director may take any actions necessary for crew safety and mission success." Capsule communicators (CAPCOMs) were Scott, Worden, Irwin, Carr, Gibson, Weitz and Don Lind. Preparation Site selection The landing site selection process for Apollo 12 was greatly informed by the site selection for Apollo 11. There were rigid standards for the possible Apollo 11 landing sites, in which scientific interest was not a major factor: they had to be close to the lunar equator and not on the periphery of the portion of the lunar surface visible from Earth; they had to be relatively flat and without major obstructions along the path the Lunar Module (LM) would fly to reach them, their suitability confirmed by photographs from Lunar Orbiter probes. Also desirable was the presence of another suitable site further west in case the mission was delayed, and the sun would have risen too high in the sky at the original site for desired lighting conditions. The need for three days to recycle if a launch had to be scrubbed meant that only three of the five suitable sites found were designated as potential landing sites for Apollo 11, of which the Apollo 11 landing site in the Sea of Tranquility was the easternmost. Since Apollo 12 was to attempt the first lunar landing if Apollo 11 failed, both sets of astronauts trained for the same sites. With the success of Apollo 11, it was initially contemplated that Apollo 12 would land at the site next further west from the Sea of Tranquility, in Sinus Medii. However, NASA planning coordinator Jack Sevier and engineers at the Manned Spaceflight Center at Houston argued for a landing close enough to the crater in which the Surveyor 3 probe had landed in 1967 to allow the astronauts to cut parts from it for return to Earth. The site was otherwise suitable and had scientific interest. Given that Apollo 11 had landed several miles off-target, though, some NASA administrators feared Apollo 12 would land far enough away that the astronauts could not reach the probe, and the agency would be embarrassed. Nevertheless, the ability to perform pinpoint landings was essential if Apollo's exploration program was to be carried out, and on July 25, 1969, Apollo Program Manager Samuel Phillips designated what became known as Surveyor crater as the landing site, despite the unanimous opposition of members of two site selection boards. Training and preparation The Apollo 12 astronauts spent five hours in mission-specific training for every hour they expected to spend in flight on the mission, a total exceeding 1,000 hours per crew member. Conrad and Bean received more mission-specific training than Apollo 11's Neil Armstrong and Buzz Aldrin had. This was in addition to the 1,500 hours of training they received as backup crew members for Apollo 9. The Apollo 12 training included over 400 hours per crew member in simulators of the Command Module (CM) and of the LM. Some of the simulations were linked in real time to flight controllers in Mission Control. To practice landing on the Moon, Conrad flew the Lunar Landing Training Vehicle (LLTV), training in which continued to be authorized even though Armstrong had been forced to bail out of a similar vehicle in 1968, just before it crashed. Soon after being assigned as Apollo 12 crew commander, Conrad met with NASA geologists and told them that the training for lunar surface activities would be conducted much as Apollo 11's, but there was to be no publicity or involvement by the media. Conrad felt he had been abused by the press during Gemini, and the sole Apollo 11 geology field trip had turned into a near-fiasco, with a large media contingent present, some getting in the way—the astronauts had trouble hearing each other due to a hovering press helicopter. After the successful return of Apollo 11 in July 1969, more time was allotted for geology, but the astronauts' focus was in getting time in the simulators without being pre-empted by the Apollo 11 crew. On the six Apollo 12 geology field trips, the astronauts would practice as if on the Moon, collecting samples and documenting them with photographs, while communicating with a CAPCOM and geologists who were out of sight in a nearby tent. Afterwards, the astronauts' performance in choosing samples and taking photographs would be critiqued. To the frustration of the astronauts, the scientists kept changing the photo documentation procedures; after the fourth or fifth such change, Conrad required that there be no more. After the return of Apollo 11, the Apollo 12 crew was able to view the lunar samples, and be briefed on them by scientists. As Apollo 11 was targeted for an ellipse-shaped landing zone, rather than at a specific point, there was no planning for geology traverses, the designated tasks to be done at sites of the crew's choosing. For Apollo 12, before the mission, some of NASA's geology team met with the crew and Conrad suggested they lay out possible routes for him and Bean. The result was four traverses, based on four potential landing points for the LM. This was the start of geology traverse planning that on later missions became a considerable effort involving several organizations. The stages of the lunar module, LM–6, were delivered to Kennedy Space Center (KSC) on March 24, 1969, and were mated to each other on April 28. Command module CM–108 and service module SM–108 were delivered to KSC on March 28, and were mated to each other on April 21. Following installation of gear and testing, the launch vehicle, with the spacecraft atop it, was rolled out to Launch Complex 39A on September 8, 1969. The training schedule was complete, as planned, by November 1, 1969; activities after that date were intended as refreshers. The crew members felt that the training, for the most part, was adequate preparation for the Moon mission. Hardware Launch vehicle There were no significant changes to the Saturn V launch vehicle used on Apollo 12, SA–507, from that used on Apollo 11. There were another 17 instrumentation measurements in the Apollo 12 launch vehicle, bringing the number to 1,365. The entire vehicle, including the spacecraft, weighed at launch, an increase from Apollo 11's . Of this figure, the spacecraft weighed , up from on Apollo 11. Third stage trajectory After LM separation, the third stage of the Saturn V, the S-IVB, was intended to fly into solar orbit. The S-IVB auxiliary propulsion system was fired, with the intent that the Moon's gravity slingshot the stage into solar orbit. Due to an error, the S-IVB flew past the Moon at too high an altitude to achieve Earth escape velocity. It remained in a semi-stable Earth orbit until it finally escaped Earth orbit in 1971, but briefly returned to Earth orbit 31 years later. It was discovered by amateur astronomer Bill Yeung who gave it the temporary designation J002E3 before it was determined to be an artificial object. Again in solar orbit as of 2021, it may again be captured by Earth's gravity, but not at least until the 2040s. The S-IVBs used on later lunar missions were deliberately crashed into the Moon to create seismic events that would register on the seismometers left on the Moon and provide data about the Moon's structure. Spacecraft The Apollo 12 spacecraft consisted of Command Module 108 and Service Module 108 (together Command and Service Modules 108, or CSM–108), Lunar Module 6 (LM–6), a Launch Escape System (LES), and Spacecraft-Lunar Module Adapter 15 (SLA–15). The LES contained three rocket motors to propel the CM to safety in the event of an abort shortly after launch, while the SLA housed the LM and provided a structural connection between the Saturn V and the LM. The SLA was identical to Apollo 11's, while the LES differed only in the installation of a more reliable motor igniter. The CSM was given the call sign Yankee Clipper, while the LM had the call sign Intrepid. These sea-related names were selected by the all-Navy crew from several thousand proposed names submitted by employees of the prime contractors of the respective modules. George Glacken, a flight test engineer at North American Aviation, builder of the CSM, proposed Yankee Clipper as such ships had "majestically sailed the high seas with pride and prestige for a new America". Intrepid was from a suggestion by Robert Lambert, a planner at Grumman, builder of the LM, as evocative of "this nation's resolute determination for continued exploration of space, stressing our astronauts' fortitude and endurance of hardship". The differences between the CSM and LM of Apollo 11, and those of Apollo 12, were few and minor. A hydrogen separator was added to the CSM to stop the gas from entering the potable water tank—Apollo 11 had had one, though mounted on the water dispenser in the CM's cabin. Gaseous hydrogen in the water had given the Apollo 11 crew severe flatulence. Other changes included the strengthening of the recovery loop attached following splashdown, meaning that the swimmers recovering the CM would not have to attach an auxiliary loop. LM changes included a structural modification so that scientific experiment packages could be carried for deployment on the lunar surface. Two hammocks were added for greater comfort of the astronauts while resting on the Moon, and a color television camera substituted for the black and white one used on the lunar surface during Apollo 11. ALSEP The Apollo Lunar Surface Experiments Package, or ALSEP, was a suite of scientific instruments designed to be emplaced on the lunar surface by the Apollo astronauts, and thereafter operate autonomously, sending data to Earth. Development of the ALSEP was part of NASA's response to some scientists who opposed the crewed lunar landing program (they felt that robotic craft could explore the Moon more cheaply) by demonstrating that some tasks, such as deployment of the ALSEP, required humans. In 1966, a contract to design and build the ALSEPs was awarded to the Bendix Corporation Due to the limited time the Apollo 11 crew would have on the lunar surface, a smaller suite of experiments was flown, known as the Early Apollo Surface Experiment Package (EASEP). Apollo 12 was the first mission to carry an ALSEP; one would be flown on each of the subsequent lunar landing missions, though the components that were included would vary. Apollo 12's ALSEP was to be deployed at least away from the LM to protect the instruments from the debris that would be generated when the ascent stage of the LM took off to return the astronauts to lunar orbit. Apollo 12's ALSEP included a Lunar Surface Magnetometer (LSM), to measure the magnetic field at the Moon's surface, a Lunar Atmosphere Detector (LAD, also known as the Cold Cathode Ion Gauge Experiment), intended to measure the density and temperature of the thin lunar atmosphere and how it varies, a Lunar Ionosphere Detector (LID, also known as the Charged Particle Lunar Environment Experiment, or CPLEE), intended to study the charged particles in the lunar atmosphere, and the Solar Wind Spectrometer, to measure the strength and direction of the solar wind at the Moon's surface—the free-standing Solar Wind Composition Experiment, to measure what makes up the solar wind, would be deployed and then brought back to Earth by the astronauts. A Dust Detector was used to measure the accumulation of lunar dust on the equipment. Apollo 12's Passive Seismic Experiment (PSE), a seismometer, would measure moonquakes and other movements in the Moon's crust, and would be calibrated by the nearby planned impact of the ascent stage of Apollo 12's LM, an object of known mass and velocity hitting the Moon at a known location, and projected to be equivalent to the explosive force of one ton of TNT. The ALSEP experiments left on the Moon by Apollo 12 were connected to a Central Station, which contained a transmitter, receiver, timer, data processor, and equipment for power distribution and control of the experiments. The equipment was powered by SNAP-27, a radioisotope thermoelectric generator (RTG) developed by the Atomic Energy Commission. Containing plutonium, the RTG flown on Apollo 12 was the first use of atomic energy on a crewed NASA spacecraft—some NASA and military satellites had previously used similar systems. The plutonium core was brought from Earth in a cask attached to an LM landing leg, a container designed to survive re-entry in the event of an aborted mission, something NASA considered unlikely. The cask would survive re-entry on Apollo 13, sinking in the Tonga Trench of the Pacific Ocean, apparently without radioactive leakage. The Apollo 12 ALSEP experiments were activated from Earth on November 19, 1969. The LAD returned only a small amount of useful data due to the failure of its power supply soon after activation. The LSM was deactivated on June 14, 1974, as was the other LSM deployed on the Moon, from Apollo 15. All powered ALSEP experiments that remained active were deactivated on September 30, 1977, principally because of budgetary constraints. Mission highlights Launch With President Richard Nixon in attendance, the first time a current U.S. president had witnessed a crewed space launch, as well as Vice President Spiro Agnew, Apollo 12 launched as planned at 11:22:00 on November 14, 1969 (16:22:00 UT) from Kennedy Space Center. This was at the start of a launch window of three hours and four minutes to reach the Moon with optimal lighting conditions at the planned landing point. There were completely overcast rainy skies, and the vehicle encountered winds of during ascent, the strongest of any Apollo mission. There was a NASA rule against launching into a cumulonimbus cloud; this had been waived and it was later determined that the launch vehicle never entered such a cloud. Had the mission been postponed, it could have been launched on November 16 with landing at a backup site where there would be no Surveyor, but since time pressure to achieve a lunar landing had been removed by Apollo 11's success, NASA might have waited until December for the next opportunity to go to the Surveyor crater. Lightning struck the Saturn V 36.5 seconds after lift-off, triggered by the vehicle itself. The static discharge caused a voltage transient that knocked all three fuel cells offline, meaning the spacecraft was being powered entirely from its batteries, which could not supply enough current to meet demand. A second strike at 52 seconds knocked out the "8-ball" attitude indicator. The telemetry stream at Mission Control was garbled, but the Saturn V continued to fly normally; the strikes had not affected the Saturn V instrument unit guidance system, which functioned independently from the CSM. The astronauts unexpectedly had a board red with caution and warning lights, but could not tell exactly what was wrong. The Electrical, Environmental and Consumables Manager (EECOM) in Mission Control, John Aaron, remembered the telemetry failure pattern from an earlier test when a power loss caused a malfunction in the CSM signal conditioning electronics (SCE), which converted raw signals from instrumentation to data that could be displayed on Mission Control's consoles, and knew how to fix it. Aaron made a call, "Flight, EECOM. Try SCE to Aux", to switch the SCE to a backup power supply. The switch was fairly obscure, and neither Flight Director Gerald Griffin, CAPCOM Gerald P. Carr, nor Conrad knew what it was; Bean, who as LMP was the spacecraft's engineer, knew where to find it and threw the switch, after which the telemetry came back online, revealing no significant malfunctions. Bean put the fuel cells back online, and the mission continued. Once in Earth parking orbit, the crew carefully checked out their spacecraft before re-igniting the S-IVB third stage for trans-lunar injection. The lightning strikes caused no serious permanent damage. Initially, it was feared that the lightning strike could have damaged the explosive bolts that opened the Command Module's parachute compartment. The decision was made not to share this with the astronauts and to continue with the flight plan, since they would die if the parachutes failed to deploy, whether following an Earth-orbit abort or upon a return from the Moon, so nothing was to be gained by aborting. The parachutes deployed and functioned normally at the end of the mission. Outward journey After systems checks in Earth orbit, performed with great care because of the lightning strikes, the trans-lunar injection burn, made with the S-IVB, took place at 02:47:22.80 into the mission, setting Apollo 12 on course for the Moon. An hour and twenty minutes later, the CSM separated from the S-IVB, after which Gordon performed the transposition, docking and extracting maneuver to dock with the LM and separate the combined craft from the S-IVB, which was then sent on an attempt to reach solar orbit. The stage fired its engines to leave the vicinity of the spacecraft, a change from Apollo 11, where the SM's Service Propulsion System (SPS) engine was used to distance it from the S-IVB. As there were concerns the LM might have been damaged by the lightning strikes, Conrad and Bean entered it on the first day of flight to check its status, earlier than planned. They found no issues. At 30:52.44.36, the only necessary midcourse correction during the translunar coast was made, placing the craft on a hybrid, non-free-return trajectory. Previous crewed missions to lunar orbit had taken a free-return trajectory, allowing an easy return to Earth if the craft's engines did not fire to enter lunar orbit. Apollo 12 was the first crewed spacecraft to take a hybrid free-return trajectory, that would require another burn to return to Earth, but one that could be executed by the LM's Descent Propulsion System (DPS) if the SPS failed. The use of a hybrid trajectory allowed more flexibility in mission planning. It for example allowed Apollo 12 to launch in daylight and reach the planned landing spot on schedule. Use of a hybrid trajectory meant that Apollo 12 took 8 hours longer to go from trans-lunar injection to lunar orbit. Lunar orbit and Moon landing Apollo 12 entered a lunar orbit of with an SPS burn of 352.25 seconds at mission time 83:25:26.36. On the first lunar orbit, there was a television transmission that resulted in good-quality video of the lunar surface. On the third lunar orbit, there was another burn to circularize the craft's orbit to , and on the next revolution, preparations began for the lunar landing. The CSM and LM undocked at 107:54:02.3; a half hour later there was a burn by the CSM to separate them. The 14.4 second burn by some of the CSM's thrusters meant that the two craft would be apart when the LM began the burn to move to a lower orbit in preparation for landing on the Moon. The LM's Descent Propulsion System began a 29-second burn at 109:23:39.9 to move the craft to the lower orbit, from which the 717-second powered descent to the lunar surface began at 110:20:38.1. Conrad had trained to expect a pattern of craters known as "the Snowman" to be visible when the craft underwent "pitchover", with the Surveyor crater in its center, but had feared he would see nothing recognizable. He was astonished to see the Snowman right where it should be, meaning they were directly on course. He took over manual control, planning to land the LM, as he had in simulations, in an area near the Surveyor crater that had been dubbed "Pete's Parking Lot", but found it rougher than expected. He had to maneuver, and landed the LM at 110:32:36.2 (06:54:36 UT on November 19, 1969), just from the Surveyor probe. This achieved one objective of the mission, to perform a precision landing near the Surveyor craft. The lunar coordinates of the landing site were 3.01239° S latitude, 23.42157° W longitude. The landing caused high velocity sandblasting of the Surveyor probe. It was later determined that the sandblasting removed more dust than it delivered onto the Surveyor, because the probe was covered by a thin layer that gave it a tan hue as observed by the astronauts, and every portion of the surface exposed to the direct sandblasting was lightened back toward the original white color through the removal of lunar dust. Lunar surface activities When Conrad, the shortest man of the initial groups of astronauts, stepped onto the lunar surface his first words were "Whoopie! Man, that may have been a small one for Neil, but that's a long one for me." This was not an off-the-cuff remark: Conrad had made a bet with reporter Oriana Fallaci he would say these words, after she had queried whether NASA had instructed Neil Armstrong what to say as he stepped onto the Moon. Conrad later said he was never able to collect the money. To improve the quality of television pictures from the Moon, a color camera was carried on Apollo 12 (unlike the monochrome camera on Apollo 11). When Bean carried the camera to the place near the LM where it was to be set up, he inadvertently pointed it directly into the Sun, destroying the Secondary Electron Conduction (SEC) tube. Television coverage of this mission was thus terminated almost immediately. After raising a U.S. flag on the Moon, Conrad and Bean devoted much of the remainder of the first EVA to deploying the Apollo Lunar Surface Experiments Package (ALSEP). There were minor difficulties with the deployment. Bean had trouble extracting the RTG's plutonium fuel element from its protective cask, and the astronauts had to resort to the use of a hammer to hit the cask and dislodge the fuel element. Some of the ALSEP packages proved hard to deploy, though the astronauts were successful in all cases. With the PSE able to detect their footprints as they headed back to the LM, the astronauts secured a core tube full of lunar material, and collected other samples. The first EVA lasted 3 hours, 56 minutes and 3 seconds. Four possible geologic traverses had been planned, the variable being where the LM might set down. Conrad had landed it between two of these potential landing points, and during the first EVA and the rest break that followed, scientists in Houston combined two of the traverses into one that Conrad and Bean could follow from their landing point. The resultant traverse resembled a rough circle, and when the astronauts emerged from the LM some 13 hours after ending the first EVA, the first stop was Head crater, some from the LM. There, Bean noticed that Conrad's footprints showed lighter material underneath, indicating the presence of ejecta from Copernicus crater, to the north, something that scientists examining overhead photographs of the site had hoped to find. After the mission, samples from Head allowed geologists to date the impact that formed Copernicus—according to initial dating, some 810,000,000 years ago. The astronauts proceeded to Bench crater and Sharp crater and past Halo crater before arriving at Surveyor crater, where the Surveyor 3 probe had landed. Fearing treacherous footing or that the probe might topple on them, they approached Surveyor cautiously, descending into the shallow crater some distance away and then following a contour to reach the craft, but found the footing solid and the probe stable. They collected several pieces of Surveyor, including the television camera, as well as taking rocks that had been studied by television. Conrad and Bean had procured an automatic timer for their Hasselblad cameras, and had brought it with them without telling Mission Control, hoping to take a selfie of the two of them with the probe, but when the time came to use it, could not locate it among the lunar samples they had already placed in their Hand Tool Carrier. Before returning to the LM's vicinity, Conrad and Bean went to Block crater, within Surveyor crater. The second EVA lasted 3 hours, 49 minutes, 15 seconds, during which they traveled . During the EVAs, Conrad and Bean went as far as from the LM, and collected of samples. Lunar orbit solo activities After the LM's departure, Gordon had little to say as Mission Control focused on the lunar landing. Once that was accomplished, Gordon sent his congratulations and, on the next orbit, was able to spot both the LM and the Surveyor on the ground and convey their locations to Houston. During the first EVA, Gordon prepared for a plane change maneuver, a burn to alter the CSM's orbit to compensate for the rotation of the Moon, though at times he had difficulty communicating with Houston since Conrad and Bean were using the same communications circuit. Once the two moonwalkers had returned to the LM, Gordon executed the burn, which ensured he would be in the proper position to rendezvous with the LM when it launched from the Moon. While alone in orbit, Gordon performed the Lunar Multispectral Photography Experiment, using four Hasselblad cameras arranged in a ring and aimed through one of the CM's windows. With each camera having a different color filter, simultaneous photos would be taken by each, showing the appearance of lunar features at different points on the spectrum. Analysis of the images might reveal colors not visible to the naked eye or detectable with ordinary color film, and information could be obtained about the composition of sites that would not soon be visited by humans. Among the sites studied were contemplated landing points for future Apollo missions. Return LM Intrepid lifted off from the Moon at mission time 143:03:47.78, or 14:25:47 UT on November 20, 1969; after several maneuvers, CSM and LM docked three and a half hours later. At 147:59:31.6, the LM ascent stage was jettisoned, and shortly thereafter the CSM maneuvered away. Under control from Earth, the LM's remaining propellent was depleted in a burn that caused it to impact the Moon from the Apollo 12 landing point. The seismometer the astronauts had left on the lunar surface registered the resulting vibrations for more than an hour. The crew stayed another day in lunar orbit taking photographs of the surface, including of candidate sites for future Apollo landings. A second plane change maneuver was made at 159:04:45.47, lasting 19.25 seconds. The trans-Earth injection burn, to send the CSM Yankee Clipper towards home, was conducted at 172:27:16.81 and lasted 130.32 seconds. Two short midcourse correction burns were made en route. A final television broadcast was made, the astronauts answering questions submitted by the media. There was ample time for rest on the way back to Earth, One event was the photography of a solar eclipse that occurred when the Earth came between the spacecraft and the Sun; Bean described it as the most spectacular sight of the mission. Splashdown Yankee Clipper returned to Earth on November 24, 1969, at 20:58 UT (3:58pm Eastern Time, 10:58am HST), in the Pacific Ocean. The landing was hard, resulting in a camera becoming dislodged and striking Bean in the forehead. After recovery by , they entered the Mobile Quarantine Facility (MQF), while lunar samples and Surveyor parts were sent ahead by air to the Lunar Receiving Laboratory (LRL) in Houston. Once the Hornet docked in Hawaii, the MQF was offloaded and flown to Ellington Air Force Base near Houston on November 29, from where it was taken to the LRL, where the astronauts remained until released from quarantine on December 10. Mission insignia The Apollo 12 mission patch shows the crew's naval background; all three astronauts at the time of the mission were U.S. Navy commanders. It features a clipper ship arriving at the Moon, representing the CM Yankee Clipper. The ship trails fire, and flies the flag of the United States. The mission name APOLLO XII and the crew names are on a wide gold border, with a small blue trim. Blue and gold are traditional U.S. Navy colors. The patch has four stars on it – one each for the three astronauts who flew the mission and one for Clifton Williams, the original LMP on Conrad's crew who was killed in 1967 and would have flown the mission. The star was placed there at the suggestion of his replacement, Bean. The insignia was designed by the crew with the aid of several employees of NASA contractors. The Apollo 12 landing area on the Moon is within the portion of the lunar surface shown on the insignia, based on a photograph of a globe of the Moon, taken by engineers. The clipper ship was based on photographs of such a ship obtained by Bean. Aftermath and spacecraft location After the mission, Conrad urged his crewmates to join him in the Skylab program, seeing in it the best chance of flying in space again. Bean did so—Conrad commanded Skylab 2, the first crewed mission to the space station, while Bean commanded Skylab 3. Gordon, though, still hoped to walk on the Moon and remained with the Apollo program, serving as backup commander of Apollo 15. He was the likely commander of Apollo 18, but that mission was canceled and he did not fly in space again. The Apollo 12 command module Yankee Clipper, was displayed at the Paris Air Show and was then placed at NASA's Langley Research Center in Hampton, Virginia; ownership was transferred to the Smithsonian in July 1971. It is on display at the Virginia Air and Space Center in Hampton. Mission Control had remotely fired the service module's thrusters after jettison, hoping to have it skip off the atmosphere and enter a high-apogee orbit, but the lack of tracking data confirming this caused it to conclude it most likely burned up in the atmosphere at the time of CM re-entry. The S-IVB is in a solar orbit that is sometimes affected by the Earth. The ascent stage of LM Intrepid impacted the Moon November 20, 1969, at 22:17:17.7 UT (5:17pm EST). In 2009, the Lunar Reconnaissance Orbiter (LRO) photographed the Apollo 12 landing site, where the descent stage, ALSEP, Surveyor3 spacecraft, and astronaut footpaths remain. In 2011, the LRO returned to the landing site at a lower altitude to take higher resolution photographs. See also List of artificial objects on the Moon List of spacewalks and moonwalks 1965–1999 References Bibliography External links "Apollo 12" at Encyclopedia Astronautica "Apollo 12" at NASA's National Space Science Data Center Apollo 11, 12, and 14 Traverses, at the Lunar and Planetary Institute "Apollo 12 Traverse Map" at the USGS Astrogeology Science Center Lunar Orbiter 3 image 154 H2, used for planning the mission (landing site is left of center). Lunar Orbiter 1 sequence of images 157, 158, and 159, showing the Apollo 12 landing site and vicinity NASA reports "Apollo 12 Preliminary Science Report" (PDF), NASA, NASA SP-235, 1970 "Analysis of Apollo 12 Lightning Incident", (PDF) February 1970 "Analysis of Surveyor 3 material and photographs returned by Apollo 12" (PDF) 1972 "Examination of Surveyor 3 surface sampler scoop"(PDF) 1971 "Table 2-40. Apollo 12 Characteristics" from NASA Historical Data Book: Volume III: Programs and Projects 1969–1978 by Linda Neuman Ezell, NASA History Series (1988) The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 Multimedia "Apollo 12: Pinpoint For Science" on YouTube "Apollo 12: The Bernie Scrivener Audio Tapes" – Apollo 12 audio recordings at the Apollo 12 Flight Journal "Apollo 12: There and Back Again" – Image slideshow by Life magazine "Apollo12: Comic Book" (50th Anniversary – November 20, 1969–2019) "Apollo 12: Patch" – Image of Apollo 12 mission patch Alan Bean Pete Conrad Richard F. Gordon Jr. Apollo 12 Extravehicular activity Crewed missions to the Moon Sample return missions Soft landings on the Moon Spacecraft launched in 1969 Spacecraft which reentered in 1969 Spacecraft launched by Saturn rockets Articles containing video clips 1969 on the Moon 1969 in the United States November 1969 events

1968

https://en.wikipedia.org/wiki/Apollo%2014

Apollo 14

Apollo 14 (January 31February 9, 1971) was the eighth crewed mission in the United States Apollo program, the third to land on the Moon, and the first to land in the lunar highlands. It was the last of the "H missions", landings at specific sites of scientific interest on the Moon for two-day stays with two lunar extravehicular activities (EVAs or moonwalks). The mission was originally scheduled for 1970, but was postponed because of the investigation following the failure of Apollo 13 to reach the Moon's surface, and the need for modifications to the spacecraft as a result. Commander Alan Shepard, Command Module Pilot Stuart Roosa, and Lunar Module Pilot Edgar Mitchell launched on their nine-day mission on Sunday, January 31, 1971, at 4:03:02 p.m. EST. En route to the lunar landing, the crew overcame malfunctions that might have resulted in a second consecutive aborted mission, and possibly, the premature end of the Apollo program. Shepard and Mitchell made their lunar landing on February 5 in the Fra Mauro formation – originally the target of Apollo 13. During the two walks on the surface, they collected of Moon rocks and deployed several scientific experiments. To the dismay of some geologists, Shepard and Mitchell did not reach the rim of Cone crater as had been planned, though they came close. In Apollo 14's most famous event, Shepard hit two golf balls he had brought with him with a makeshift club. While Shepard and Mitchell were on the surface, Roosa remained in lunar orbit aboard the Command and Service Module, performing scientific experiments and photographing the Moon, including the landing site of the future Apollo 16 mission. He took several hundred seeds on the mission, many of which were germinated on return, resulting in the so-called Moon trees, that were widely distributed in the following years. After liftoff from the lunar surface and a successful docking, the spacecraft was flown back to Earth where the three astronauts splashed down safely in the Pacific Ocean on February 9. Astronauts and key Mission Control personnel The mission commander of Apollo 14, Alan Shepard, one of the original Mercury Seven astronauts, became the first American to enter space with a suborbital flight on May 5, 1961. Thereafter, he was grounded by Ménière's disease, a disorder of the ear, and served as Chief Astronaut, the administrative head of the Astronaut Office. He had experimental surgery in 1968 which was successful and allowed his return to flight status. Shepard, at age 47, was the oldest U.S. astronaut to fly when he made his trip aboard Apollo 14, and he is the oldest person to walk on the Moon. Apollo 14's Command Module Pilot (CMP), Stuart Roosa, aged 37 when the mission flew, had been a smoke jumper before joining the Air Force in 1953. He became a fighter pilot and then in 1965 successfully completed Aerospace Research Pilot School (ARPS) at Edwards Air Force Base in California prior to his selection as a Group 5 astronaut the following year. He served as a capsule communicator (CAPCOM) for Apollo 9. The Lunar Module Pilot (LMP), Edgar Mitchell, aged 40 at the time of Apollo 14, joined the Navy in 1952 and served as a fighter pilot, beginning in 1954. He was assigned to squadrons aboard aircraft carriers before returning to the United States to further his education while in the Navy, also completing the ARPS prior to his selection as a Group 5 astronaut. He served on the support crew for Apollo 9 and was the LMP of the backup crew for Apollo 10. Shepard and his crew had originally been designated by Deke Slayton, Director of Flight Crew Operations and one of the Mercury Seven, as the crew for Apollo 13. NASA's management felt that Shepard needed more time for training given he had not flown in space since 1961, and chose him and his crew for Apollo 14 instead. The crew originally designated for Apollo 14, Jim Lovell as the commander, Ken Mattingly as CMP and Fred Haise as LMP, all of whom had backed up Apollo 11, was made the prime crew for Apollo 13 instead. Mitchell's commander on the Apollo 10 backup crew had been another of the original seven, Gordon Cooper, who had tentatively been scheduled to command Apollo 13, but according to author Andrew Chaikin, his casual attitude toward training resulted in him being not selected. Also on that crew, but excluded from further flights, was Donn Eisele, likely because of problems aboard Apollo 7, which he had flown, and because he had been involved in a messy divorce. Apollo 14's backup crew was Eugene A. Cernan as commander, Ronald E. Evans Jr. as CMP and Joe H. Engle as LMP. The backup crew, with Harrison Schmitt replacing Engle, would become the prime crew of Apollo 17. Schmitt flew instead of Engle because there was intense pressure on NASA to fly a scientist to the Moon (Schmitt was a geologist) and Apollo 17 was the last lunar flight. Engle, who had flown the X-15 to the edge of outer space, flew into space for NASA in 1981 on STS-2, the second Space Shuttle flight. During projects Mercury and Gemini, each mission had a prime and a backup crew. Apollo 9 commander James McDivitt believed meetings that required a member of the flight crew were being missed, so for Apollo a third crew of astronauts was added, known as the support crew. Usually low in seniority, support crew members assembled the mission's rules, flight plan, and checklists, and kept them updated; for Apollo 14, they were Philip K. Chapman, Bruce McCandless II, William R. Pogue and C. Gordon Fullerton. CAPCOMs, the individuals in Mission Control responsible for communications with the astronauts were Evans, McCandless, Fullerton and Haise. A veteran of Apollo 13, which had aborted before reaching the Moon, Haise put his training for that mission to use, especially during the EVAs, since both missions were targeted at the same place on the Moon. Had Haise walked on the Moon, he would have been the first Group 5 astronaut to do so, an honor that went to Mitchell. The flight directors during Apollo had a one-sentence job description, "The flight director may take any actions necessary for crew safety and mission success." For Apollo 14, they were: Pete Frank, Orange team; Glynn Lunney, Black team; Milt Windler, Maroon team and Gerry Griffin, Gold team. Preparation and training Prime and backup crews for both Apollo 13 and 14 were announced on August 6, 1969. Apollo 14 was scheduled for July 1970, but in January of that year, due to budget cuts that saw the cancellation of Apollo 20, NASA decided there would be two Apollo missions per year with 1970 to see Apollo 13 in April and Apollo 14 likely in October or November. The investigation into the accident which caused an abort of Apollo 13 delayed Apollo 14. On May 7, 1970, NASA Administrator Thomas O. Paine announced that Apollo 14 would launch no earlier than December 3, and the landing would be close to the site targeted by Apollo 13. The Apollo 14 astronauts continued their training. On June 30, 1970, following the release of the accident report and a NASA review of what changes to the spacecraft would be necessary, NASA announced that the launch would slip to no earlier than January 31, 1971. The crew of Apollo 14 trained together for 19 months after assignment to the mission, longer than any other Apollo crew to that point. In addition to the normal training workload, they had to supervise the changes to the command and service module (CSM) made as a result of the Apollo 13 investigation, much of which was delegated by Shepard to Roosa. Mitchell later stated, "We realized that if our mission failed—if we had to turn back—that was probably the end of the Apollo program. There was no way NASA could stand two failures in a row. We figured there was a heavy mantle on our shoulders to make sure we got it right." Before the abort of the Apollo 13 mission, the plan was to have Apollo 14 land near Littrow crater, in Mare Serenitatis, where there are features that were thought to be volcanic. After Apollo 13 returned, it was decided that its landing site, near Cone crater in the Fra Mauro formation, was scientifically more important than Littrow. The Fra Mauro formation is composed of ejecta from the impact event that formed Mare Imbrium, and scientists hoped for samples that originated deep under the Moon's surface. Cone crater was the result of a young, deep impact, and large enough to have torn through whatever debris was deposited since the Imbrium Event, which geologists hoped to be able to date. Landing at Fra Mauro would also allow orbital photography of another candidate landing site, the Descartes Highlands, which became the landing site for Apollo 16. Although Littrow went unvisited, a nearby area, Taurus-Littrow, was the landing site for Apollo 17. Apollo 14's landing site was located slightly closer to Cone crater than the point designated for Apollo 13. The change in landing site from Littrow to Fra Mauro affected the geological training for Apollo 14. Before the switch, the astronauts had been taken to volcanic sites on Earth; afterwards, they visited crater sites, such as the Ries Crater in West Germany and an artificial crater field created for astronaut training in Arizona's Verde Valley. The effectiveness of the training was limited by a lack of enthusiasm shown by Shepard, which set the tone for Mitchell. Harrison Schmitt suggested that the commander had other things on his mind, such as overcoming a ten-year absence from spaceflight and ensuring a successful mission after the near-disaster of Apollo 13. Roosa undertook training for his period alone in lunar orbit, when he would make observations of the Moon and take photographs. He had been impressed by the training given to Apollo 13 prime crew CMP Mattingly by geologist Farouk El-Baz and got El-Baz to agree to undertake his training. The two men pored over lunar maps depicting the areas the CSM would pass over. When Shepard and Mitchell were on their geology field trips, Roosa would be overhead in an airplane taking photographs of the site and making observations. El-Baz had Roosa make observations while flying his T-38 jet at a speed and altitude simulating the speed at which the lunar surface would pass below the CSM. Another issue that had marked Apollo 13 was the last-minute change of crew due to exposure to communicable disease. To prevent another such occurrence, for Apollo 14 NASA instituted what was called the Flight Crew Health Stabilization Program. Beginning 21 days before launch, the crew lived in quarters at the launch site, Florida's Kennedy Space Center (KSC), with their contacts limited to their spouses, the backup crew, mission technicians, and others directly involved in training. Those individuals were given physical examinations and immunizations, and crew movements were limited as much as possible at KSC and nearby areas. The Command and Service Modules were delivered to KSC on November 19, 1969; the ascent stage of the LM arrived on November 21 with the descent stage three days later. Thereafter, checkout, testing and equipment installation proceeded. The launch vehicle stack, with the spacecraft on top, was rolled out from the Vehicle Assembly Building to Pad 39A on November 9, 1970. Hardware Spacecraft The Apollo 14 spacecraft consisted of Command Module (CM) 110 and Service Module (SM) 110 (together CSM-110), called Kitty Hawk, and Lunar Module 8 (LM-8), called Antares. Roosa had chosen the CSM's call sign after the town in North Carolina where, in 1903, the Wright Brothers first flew their Wright Flyer airplane (also known as Kitty Hawk). Antares was named by Mitchell after the star in the constellation Scorpius that the astronauts in the LM would use to orient the craft for its lunar landing. Also considered part of the spacecraft were a Launch Escape System and a Spacecraft/Launch Vehicle Adapter, numbered SLA-17. The changes to the Apollo spacecraft between Apollo 13 and 14 were more numerous than with earlier missions, not only because of the problems with Apollo 13, but because of the more extensive lunar activities planned for Apollo 14. The Apollo 13 accident had been caused by the explosive failure of an oxygen tank, after the insulation of the internal wiring had been damaged by heating of the tank contents pre-launch—that the oxygen had gotten hot enough to damage the insulation had not been realized, since the protective thermostatic switches had failed because they were, through an error, not designed to handle the voltage applied during ground testing. The explosion damaged the other tank or its tubing, causing its contents to leak away. The changes in response included a redesign of the oxygen tanks, with the thermostats being upgraded to handle the proper voltage. A third tank was also added, placed in Bay1 of the SM, on the side opposite the other two, and was given a valve that could isolate it in an emergency, and allow it to feed the CM's environmental system only. The quantity probe in each tank was upgraded from aluminum to stainless steel. Also in response to the Apollo 13 accident, the electrical wiring in Bay4 (where the explosion had happened) was sheathed in stainless steel. The fuel cell oxygen supply valves were redesigned to isolate the Teflon-coated wiring from the oxygen. The spacecraft and Mission Control monitoring systems were modified to give more immediate and visible warnings of anomalies. The Apollo 13 astronauts had suffered shortages of water and of power after the accident. Accordingly, an emergency supply of of water was stored in Apollo 14's CM, and an emergency battery, identical to those that powered the LM's descent stage, was placed in the SM. The LM was modified to make the transfer of power from LM to CM easier. Other changes included the installation of anti-slosh baffles in the LM descent stage's propellant tanks. This would prevent the low fuel light from coming on prematurely, as had happened on Apollo 11 and 12. Structural changes were made to accommodate the equipment to be used on the lunar surface, including the Modular Equipment Transporter. Launch vehicle The Saturn V used for Apollo 14 was designated SA-509, and was similar to those used on Apollo 8 through 13. At , it was the heaviest vehicle yet flown by NASA, heavier than the launch vehicle for Apollo 13. A number of changes were made to avoid pogo oscillations, that had caused an early shutdown of the center J-2 engine on Apollo 13's S-II second stage. These included a helium gas accumulator installed in the liquid oxygen (LOX) line of the center engine, a backup cutoff device for that engine, and a simplified 2-position propellant utilization valve on each of the five J-2 engines. ALSEP and other lunar surface equipment The Apollo Lunar Surface Experiments Package (ALSEP) array of scientific instruments carried by Apollo 14 consisted of the Passive Seismic Experiment (PSE), Active Seismic Experiment (ASE), Suprathermal Ion Detector (SIDE), Cold Cathode Ion Gauge (CCIG), and Charged Particle Lunar Environmental Experiment (CPLEE). Two additional lunar surface experiments not part of the ALSEP were also flown, the Laser Ranging Retro-Reflector (LRRR or LR3), to be deployed in the ALSEP's vicinity, and the Lunar Portable Magnetometer (LPM), to be used by the astronauts during their second EVA. The PSE had been flown on Apollo 12 and 13, the ASE on Apollo 13, the SIDE on Apollo 12, the CCIG on Apollo 12 and 13, and the LRRR on Apollo 11. The LPM was new, but resembled equipment flown on Apollo 12. The ALSEP components flown on Apollo 13 were destroyed when its LM burned up in Earth's atmosphere. Deployment of the ALSEP, and of the other instruments, each formed one of Apollo 14's mission objectives. The PSE was a seismometer, similar to one left on the Moon by Apollo 12, and was to measure seismic activity in the Moon. The Apollo 14 instrument would be calibrated by the impact, after being jettisoned, of the LM's ascent stage, since an object of known mass and velocity would be impacting at a known location on the Moon. The Apollo 12 instrument would also be activated by the spent Apollo 14 S-IVB booster, which would impact the Moon after the mission entered lunar orbit. The two seismometers would, in combination with those left by later Apollo missions, constitute a network of such instruments at different locations on the Moon. The ASE would also measure seismic waves. It consisted of two parts. In the first, one of the crew members would deploy three geophones at distances up to from the ALSEP's Central Station, and on his way back from the furthest, fire thumpers every . The second consisted of four mortars (with their launch tubes), of different properties and set to impact at different distances from the experiment. It was hoped that the waves generated from the impacts would provide data about seismic wave transmission in the Moon's regolith. The mortar shells were not to be fired until the astronauts had returned to Earth, and in the event were never fired for fear they would damage other experiments. A similar experiment was successfully deployed, and the mortars launched, on Apollo 16. The LPM was to be carried during the second EVA and used to measure the Moon's magnetic field at various points. The SIDE measured ions on the lunar surface, including from the solar wind. It was combined with the CCIG, which was to measure the lunar atmosphere and detect if it varied over time. The CPLEE measured the particle energies of protons and electrons generated by the Sun that reached the lunar surface. The LRRR acts as a passive target for laser beams, allowing the measurement of the Earth/Moon distance and how it changes over time. The LRRRs from Apollo 11, 14 and 15 are the only experiments left on the Moon by the Apollo astronauts that are still returning data. Flown for the first time on Apollo 14 was the Buddy Secondary Life Support System (BSLSS), a set of flexible hoses that would enable Shepard and Mitchell to share cooling water should one of their Primary Life Support System (PLSS) backpacks fail. In such an emergency, the astronaut with the failed equipment would get oxygen from his Oxygen Purge System (OPS) backup cylinder, but the BSLSS would ensure he did not have to use oxygen for cooling, extending the life of the OPS. The OPSs used on Apollo 14 were modified from those used on previous missions in that the internal heaters were removed as unnecessary. Water bags were also taken to the lunar surface, dubbed "Gunga Dins", for insertion in the astronauts' helmets, allowing them sips of water during the EVAs. These had been flown on Apollo 13, but Shepard and Mitchell were the first to use them on the Moon. Similarly, Shepard was the first on the lunar surface to wear a spacesuit with commander's stripes: red stripes on arms, legs, and on the helmet, though one had been worn by Lovell on Apollo 13. These were instituted because of the difficulty in telling one spacesuited astronaut from the other in photographs. Modular Equipment Transporter The Modular Equipment Transporter (MET) was a two-wheeled handcart, used only on Apollo 14, intended to allow the astronauts to take tools and equipment with them, and store lunar samples, without needing to carry them. On later Apollo program missions, the self-propelled Lunar Roving Vehicle (LRV) was flown instead. The MET, when deployed for use on the lunar surface, was about long, wide and high. It had pressurized rubber tires wide and in diameter, containing nitrogen and inflated to about . The first use of tires on the Moon, these were developed by Goodyear and were dubbed their XLT (Experimental Lunar Tire) model. Fully loaded, the MET weighed about . Two legs combined with the wheels to provide four-point stability when at rest. Mission highlights Launch and flight to lunar orbit Apollo 14 launched from Launch Complex 39-A at KSC at 4:03:02 pm (21:03:02 UTC), January 31, 1971. This followed a launch delay due to weather of 40 minutes and 2 seconds; the first such delay in the Apollo program. The original planned time, 3:23 pm, was at the very start of the launch window of just under four hours; had Apollo 14 not launched during it, it could not have departed until March. Apollo 12 had launched during poor weather and twice been struck by lightning, as a result of which the rules had been tightened. Among those present to watch the launch were U.S. Vice President Spiro T. Agnew and the Prince of Spain, the future King Juan Carlos I. The mission would take a faster trajectory to the Moon than planned, and thus make up the time in flight. Because it had, just over two days after launch, the mission timers would be put ahead by 40 minutes and 3 seconds so that later events would take place at the times scheduled in the flight plan. After the vehicle reached orbit, the S-IVB third stage shut down, and the astronauts performed checks of the spacecraft before restarting the stage for translunar injection (TLI), the burn that placed the vehicle on course for the Moon. After TLI, the CSM separated from the S-IVB, and Roosa performed the transposition maneuver, turning it around in order to dock with the LM before the entire spacecraft separated from the stage. Roosa, who had practiced the maneuver many times, hoped to break the record for the least amount of propellant used in docking. But when he gently brought the modules together, the docking mechanism would not activate. He made several attempts over the next two hours, as mission controllers huddled and sent advice. If the LM could not be extracted from its place on the S-IVB, no lunar landing could take place, and with consecutive failures, the Apollo program might end. Mission Control proposed that they try it again with the docking probe retracted, hoping the contact would trigger the latches. This worked, and within an hour the joined spacecraft had separated from the S-IVB. The stage was set on a course to impact the Moon, which it did just over three days later, causing the Apollo 12 seismometer to register vibrations for over three hours. The crew settled in for its voyage to Fra Mauro. At 60:30 Ground Elapsed Time, Shepard and Mitchell entered the LM to check its systems; while there they photographed a wastewater dump from the CSM, part of a particle contamination study in preparation for Skylab. Two midcourse corrections were performed on the translunar coast, with one burn lasting 10.19 seconds and one lasting 0.65 seconds. Lunar orbit and descent At 81:56:40.70 into the mission (February 4 at 1:59:43 am EST; 06:59:43 UTC), the Service Propulsion System engine in the SM was fired for 370.84 seconds to send the craft into a lunar orbit with apocynthion of and pericynthion of . A second burn, at 86:10:52 mission time, sent the spacecraft into an orbit of by . This was done in preparation for the release of the LM Antares. Apollo 14 was the first mission on which the CSM propelled the LM to the lower orbit—though Apollo 13 would have done so had the abort not already occurred. This was done to increase the amount of hover time available to the astronauts, a safety factor since Apollo 14 was to land in rough terrain. After separating from the command module in lunar orbit, the LM Antares had two serious problems. First, the LM computer began getting an ABORT signal from a faulty switch. NASA believed the computer might be getting erroneous readings like this if a tiny ball of solder had shaken loose and was floating between the switch and the contact, closing the circuit. The immediate solution – tapping on the panel next to the switch – did work briefly, but the circuit soon closed again. If the problem recurred after the descent engine fired, the computer would think the signal was real and would initiate an auto-abort, causing the ascent stage to separate from the descent stage and climb back into orbit. NASA and the software teams at the Massachusetts Institute of Technology scrambled to find a solution. The software was hard-wired, preventing it from being updated from the ground. The fix made it appear to the system that an abort had already happened, and it would ignore incoming automated signals to abort. This would not prevent the astronauts from piloting the ship, though if an abort became necessary, they might have to initiate it manually. Mitchell entered the changes with minutes to go until planned ignition. A second problem occurred during the powered descent, when the LM landing radar failed to lock automatically onto the Moon's surface, depriving the navigation computer of vital information on the vehicle's altitude and vertical descent speed. After the astronauts cycled the landing radar breaker, the unit successfully acquired a signal near . Mission rules required an abort if the landing radar was out at , though Shepard might have tried to land without it. With the landing radar, Shepard steered the LM to a landing which was the closest to the intended target of the six missions that landed on the Moon. Lunar surface operations Shepard stated, after stepping onto the lunar surface, "And it's been a long way, but we're here." The first EVA began at 9:42 am EST (14:42 UTC) on February 5, 1971, having been delayed by a problem with the communications system which set back the start of the first EVA to five hours after landing. The astronauts devoted much of the first EVA to equipment offloading, deployment of the ALSEP and the US flag, as well as setting up and loading the MET. These activities were televised back to Earth, though the picture tended to degenerate during the latter portion of the EVA. Mitchell deployed the ASE's geophone lines, unreeling and emplacing the two lines leading out from the ALSEP's Central Station. He then fired the thumper explosives, vibrations from which would give scientists back on Earth information about the depth and composition of the lunar regolith. Of the 21 thumpers, five failed to fire. On the way back to the LM, the astronauts collected and documented lunar samples, and took photographs of the area. The first EVA lasted 4 hours, 47 minutes, 50 seconds. The astronauts had been surprised by the undulating ground, expecting flatter terrain in the area of the landing, and this became an issue on the second EVA, as they set out, MET in tow, for the rim of Cone crater. The craters that Shepard and Mitchell planned to use for navigational landmarks looked very different on the ground than on the maps they had, based on overhead shots taken from lunar orbit. Additionally, they consistently overestimated the distance they travelled. Mission Control and the CAPCOM, Fred Haise, could see nothing of this, as the television camera remained near the LM, but they worried as the clock ticked on the EVA, and monitored the heavy breathing and rapid heartbeats of the astronauts. They topped one ridge that they expected was the crater rim, only to view more such terrain beyond. Although Mitchell strongly suspected the rim was nearby, they had become physically exhausted from the effort. They were then instructed by Haise to sample where they were and then start moving back towards the LM. Later analysis using the pictures they took determined that they had come within about of the crater's rim. Images from the Lunar Reconnaissance Orbiter (LRO) show the tracks of the astronauts and the MET come to within 30 m of the rim. The difficulties faced by Shepard and Mitchell would emphasize the need for a means of transportation on the lunar surface with a navigation system, which was met by the Lunar Roving Vehicle, already planned to fly on Apollo 15. Once the astronauts returned to the vicinity of the LM and were again within view of the television camera, Shepard performed a stunt he had been planning for years in the event he reached the Moon, and which is probably what Apollo 14 is best remembered for. Shepard brought along a Wilson six iron golf club head, which he had modified to attach to the handle of the contingency sample tool, and two golf balls. Shepard took several one-handed swings (due to the limited flexibility of the EVA suit) and exuberantly exclaimed that the second ball went "miles and miles and miles" in the low lunar gravity. Mitchell then threw a lunar scoop handle as if it were a javelin. The "javelin" and one of the golf balls wound up in a crater together, with Mitchell's projectile a bit further. In an interview with Ottawa Golf, Shepard stated the other landed near the ALSEP. The second EVA lasted 4 hours, 34 minutes, 41 seconds. Shepard brought back the club, gave it to the USGA Museum in New Jersey, and had a replica made which he gave to the National Air and Space Museum. In February 2021, to commemorate Apollo 14's 50th anniversary, imaging specialist Andy Saunders, who had previously worked to produce the clearest image of Neil Armstrong on the Moon, produced new, digitally enhanced images that were used to estimate the final resting places of the two balls that Shepard hit - the first landed approximately 24 yards from the "tee", while the second managed 40 yards. Lunar samples A total of of Moon rocks, or lunar samples, were brought back from Apollo 14. Most are breccias, which are rocks composed of fragments of other, older rocks. Breccias form when the heat and pressure of meteorite impacts fuse small rock fragments together. There were a few basalts that were collected in this mission in the form of clasts (fragments) in breccia. The Apollo 14 basalts are generally richer in aluminum and sometimes richer in potassium than other lunar basalts. Most lunar mare basalts collected during the Apollo program were formed from 3.0 to 3.8 billion years ago. The Apollo 14 basalts were formed 4.0 to 4.3 billion years ago, older than the volcanism known to have occurred at any of the mare locations reached during the Apollo program. Some geologists were pleased enough with the close approach to Cone crater to send a case of scotch to the astronauts while they were in post-mission quarantine, though their enthusiasm was tempered by the fact that Shepard and Mitchell had documented few of the samples they brought back, making it hard and sometimes impossible to discern where they came from. Others were less happy; Don Wilhelms wrote in his book on the geological aspects of Apollo, "the golf game did not set well with most geologists in light of the results at Cone crater. The total haul from the rim-flank of Cone ... was 16 Hasselblad photographs (out of a mission total of 417), six rock-size samples heavier than 50 g, and a grand total of 10 kg of samples, 9 kg of which are in one rock (sample 14321 [i.e., Big Bertha]). That is to say, apart from 14321 we have less than 1 kg of rock—962 g to be exact—from what in my opinion is the most important single point reached by astronauts on the Moon." Geologist Lee Silver stated, "The Apollo 14 crews did not have the right attitude, did not learn enough about their mission, had the burden of not having the best possible preflight photography, and they weren't ready." In their sourcebook on Apollo, Richard W. Orloff and David M. Harland doubted that if Apollo 13 had reached the Moon, Lovell, and Haise, given a more distant landing point, could have got as close to Cone crater as Shepard and Mitchell did. In January 2019 research showed that Big Bertha, which weighs , has characteristics that make it likely to be a terrestrial (Earth) meteorite. Granite and quartz, which are commonly found on Earth but very rarely found on the Moon, were confirmed to exist on Big Bertha. To find the sample's age, the research team from Curtin University looked at bits of the mineral zircon embedded in its structure. "By determining the age of zircon found in the sample, we were able to pinpoint the age of the host rock at about four billion years old, making it similar to the oldest rocks on Earth," researcher Alexander Nemchin said, adding that "the chemistry of the zircon in this sample is very different from that of every other zircon grain ever analyzed in lunar samples, and remarkably similar to that of zircons found on Earth." This would mean Big Bertha is both the first discovered terrestrial meteorite and the oldest known Earth rock. Lunar orbit operations Roosa spent almost two days alone aboard Kitty Hawk, performing the first intensive program of scientific observation from lunar orbit, much of which was intended to have been done by Apollo 13. After Antares separated and its crew began preparations to land, Roosa in Kitty Hawk performed an SPS burn to send the CSM to an orbit of approximately , and later a plane change maneuver to compensate for the rotation of the Moon. Roosa took pictures from lunar orbit. The Lunar Topographic Camera, also known as the Hycon camera, was supposed to be used to image the surface, including the Descartes Highlands site being considered for Apollo 16, but it quickly developed a fault with the shutter that Roosa could not fix despite considerable help from Houston. Although about half of the photographic targets had to be scrubbed, Roosa was able to obtain photographs of Descartes with a Hasselblad camera and confirm that it was a suitable landing point. Roosa also used the Hasselblad to take photographs of the impact point of Apollo 13's S-IVB near Lansburg B crater. After the mission, troubleshooting found a tiny piece of aluminum contaminating the shutter control circuit, which caused the shutter to operate continuously. Roosa was able to see sunlight glinting off Antares and view its lengthy shadow on the lunar surface on Orbit 17; on Orbit 29 he could see the sun reflecting off the ALSEP. He also took astronomical photographs, of the Gegenschein, and of the Lagrangian point of the Sun-Earth system that lies beyond the Earth (L), testing the theory that the Gegenschein is generated by reflections off particles at L. Performing the bistatic radar experiment, he also focused Kitty Hawk VHF and S-band transmitters at the Moon so that they would bounce off and be detected on Earth in an effort to learn more about the depth of the lunar regolith. Return, splashdown and quarantine Antares lifted off from the Moon at 1:48:42 pm EST (18:48:42 UTC) on February 6, 1971. Following the first direct (first orbit) rendezvous on a lunar landing mission, docking took place an hour and 47 minutes later. Despite concerns based on the docking problems early in the mission, the docking was successful on the first attempt, though the LM's Abort Guidance System, used for navigation, failed just before the two craft docked. After crew, equipment, and lunar samples were transferred to Kitty Hawk, the ascent stage was jettisoned, and impacted the Moon, setting off waves registered by the seismometers from Apollo 12 and 14. A trans-earth injection burn took place on February 6 at 8:39:04 pm (February 7 at 01:39:04 UTC) taking 350.8 seconds, during Kitty Hawk 34th lunar revolution. During the trans-earth coast, two tests of the oxygen system were performed, one to ensure the system would operate properly with low densities of oxygen in the tanks, the second to operate the system at a high flow rate, as would be necessary for the in-flight EVAs scheduled for Apollo 15 and later. Additionally, a navigation exercise was done to simulate a return to Earth following a loss of communications. All were successful. During his rest periods on the voyage, Mitchell conducted ESP experiments without NASA's knowledge or sanction, attempting by prearrangement to send images of cards he had brought with him to four people on Earth. He stated after the mission that two of the four had gotten 51 out of 200 correct (the others were less successful), whereas random chance would have dictated 40. On the final evening in space, the crew conducted a press conference, with the questions submitted to NASA in advance and read to the astronauts by the CAPCOM. The command module Kitty Hawk splashed down in the South Pacific Ocean on February 9, 1971, at 21:05 [UTC], approximately south of American Samoa. After recovery by the ship USS New Orleans, the crew was flown to Pago Pago International Airport in Tafuna, then to Honolulu, then to Ellington Air Force Base near Houston in a plane containing a Mobile Quarantine Facility trailer before they continued their quarantine in the Lunar Receiving Laboratory. They remained there until their release from quarantine on February 27, 1971. The Apollo 14 astronauts were the last lunar explorers to be quarantined on their return from the Moon. They were the only Apollo crew to be quarantined both before and after the flight. Roosa, who worked in forestry in his youth, took several hundred tree seeds on the flight. These were germinated after the return to Earth, and were widely distributed around the world as commemorative Moon trees. Some seedlings were given to state forestry associations in 1975 and 1976 to mark the United States Bicentennial. Mission insignia The mission insignia is an oval depicting the Earth and the Moon, and an astronaut pin drawn with a comet trail. The pin is leaving Earth and is approaching the Moon. A gold band around the edge includes the mission and astronaut names. The designer was Jean Beaulieu, who based it on a sketch by Shepard, who had been head of the Astronaut Office and meant the pin to symbolize that through him, the entire corps was in spirit flying to the Moon. The backup crew spoofed the patch with its own version, with revised artwork showing a Wile E. Coyote cartoon character depicted as gray-bearded (for Shepard, who was 47 at the time of the mission and the oldest man on the Moon), pot-bellied (for Mitchell, who had a pudgy appearance) and red-furred (for Roosa's red hair), still on the way to the Moon, while Road Runner (for the backup crew) is already on the Moon, holding a U.S. flag and a flag labelled "1st Team". The flight name is replaced by "BEEP BEEP" and the backup crew's names are given. Several of these patches were hidden by the backup crew and found during the flight by the crew in notebooks and storage lockers in both the CSM Kitty Hawk and the LM Antares, and one patch was stored in the MET lunar handcart. One patch, attached to Shepard's PLSS, was worn on the lunar surface, and, mounted on a plaque, was presented by him to Cernan after the mission. Spacecraft locations The Apollo 14 command module Kitty Hawk is on display at the Apollo/Saturn V Center at the Kennedy Space Center Visitor Complex after being on display at the United States Astronaut Hall of Fame near Titusville, Florida, for several years. At the time of its transfer of ownership from NASA to the Smithsonian in July 1977, it was on display at the facilities of North American Rockwell (the company that had constructed it) in Downey, California. The SM reentered Earth's atmosphere and was destroyed, though there was no tracking or sightings of it. The S-IVB booster impacted the Moon on February4 at . The ascent stage of lunar module Antares impacted the Moon on February7, 1971, at 00:45:25.7 UT (February 6, 7:45 pm EST), at . Antares descent stage and the mission's other equipment remain at Fra Mauro at . Photographs taken in 2009 by the Lunar Reconnaissance Orbiter were released on July 17, and the Fra Mauro equipment was the most visible Apollo hardware at that time, owing to particularly good lighting conditions. In 2011, the LRO returned to the landing site at a lower altitude to take higher resolution photographs. Gallery See also Google Moon List of artificial objects on the Moon List of spacewalks and moonwalks 1965–1999 References Bibliography External links "Apollo 14" at Encyclopedia Astronautica Apollo 11, 12, and 14 Traverses, at the Lunar and Planetary Institute Apollo 14 Traverse Map – United States Geological Survey (USGS) Apollo Mission Traverse Maps – Several maps showing routes of moonwalks Apollo 14 Science Experiments at the Lunar and Planetary InstituteNASA reports The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "Table 2-42. Apollo 14 Characteristics" from NASA Historical Data Book: Volume III: Programs and Projects 1969–1978 by Linda Neuman Ezell, NASA History Series (1988) "Masking the Abort Discrete" – by Paul Fjeld at the Apollo 14 Lunar Surface Journal. NASA. Detailed technical article describing the ABORT signal problem and its solution "Apollo 14 Technical Air-to-Ground Voice Transcription" (PDF) Manned Spacecraft Center, NASA, February 1971Multimedia' – slideshow by Life magazine "The Apollo Astronauts" – Interview with the Apollo 14 astronauts, March 31, 1971, from the Commonwealth Club of California Records at the Hoover Institution Archives "Apollo 14 Lunar Liftoff – Video" at Maniac World , with Cone crater 1971 in spaceflight 1971 in the United States Edgar Mitchell Stuart Roosa Alan Shepard Apollo program missions Articles containing video clips Extravehicular activity Crewed missions to the Moon Sample return missions Soft landings on the Moon Spacecraft which reentered in 1971 Spacecraft launched in 1971 January 1971 events February 1971 events Spacecraft launched by Saturn rockets 1971 on the Moon

1969

https://en.wikipedia.org/wiki/Apollo%2015

Apollo 15

Apollo 15 (July 26August 7, 1971) was the ninth crewed mission in the United States' Apollo program and the fourth to land on the Moon. It was the first J mission, with a longer stay on the Moon and a greater focus on science than earlier landings. Apollo 15 saw the first use of the Lunar Roving Vehicle. The mission began on July 26 and ended on August 7, with the lunar surface exploration taking place between July 30 and August 2. Commander David Scott and Lunar Module Pilot James Irwin landed near Hadley Rille and explored the local area using the rover, allowing them to travel further from the lunar module than had been possible on previous missions. They spent 18 hours on the Moon's surface on four extravehicular activities (EVA), and collected of surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, operating the sensors in the scientific instrument module (SIM) bay of the service module. This suite of instruments collected data on the Moon and its environment using a panoramic camera, a gamma-ray spectrometer, a mapping camera, a laser altimeter, a mass spectrometer, and a lunar subsatellite deployed at the end of the moonwalks. The lunar module returned safely to the command module and, at the end of Apollo 15's 74th lunar orbit, the engine was fired for the journey home. During the return trip, Worden performed the first spacewalk in deep space. The Apollo 15 mission splashed down safely on August7 despite the loss of one of its three parachutes. The mission accomplished its goals but was marred by negative publicity the following year when it emerged that the crew had carried unauthorized postal covers to the lunar surface, some of which were sold by a West German stamp dealer. The members of the crew were reprimanded for poor judgment, and did not fly in space again. The mission also saw the collection of the Genesis Rock, thought to be part of the Moon's early crust, and Scott's use of a hammer and a feather to validate Galileo's theory that when there is no air resistance, objects fall at the same rate due to gravity regardless of their mass. Background In 1962, NASA contracted for the construction of fifteen Saturn V rockets to achieve the Apollo program's goal of a crewed landing on the Moon by 1970; at the time no one knew how many missions this would require. Since success was obtained in 1969 with the sixth SaturnV on Apollo 11, nine rockets remained available for a hoped-for total of ten landings. These plans included a heavier, extended version of the Apollo spacecraft to be used in the last five missions (Apollo 16 through 20). The revamped lunar module would be capable of up to a 75-hour stay, and would carry a Lunar Roving Vehicle to the Moon's surface. The service module would house a package of orbital experiments to gather data on the Moon. In the original plan Apollo 15 was to be the last of the non-extended missions to land in Censorinus crater. But in anticipation of budget cuts, NASA cancelled three landing missions by September 1970. Apollo 15 became the first of three extended missions, known as J missions, and the landing site was moved to Hadley Rille, originally planned for Apollo 19. Crew and key Mission Control personnel Crew Scott was born in 1932 in San Antonio, Texas, and, after spending his freshman year at the University of Michigan on a swimming scholarship, transferred to the United States Military Academy, from which he graduated in 1954. Serving in the Air Force, Scott had received two advanced degrees from MIT in 1962 before being selected as one of the third group of astronauts the following year. He flew in Gemini 8 in 1966 alongside Neil Armstrong and as command module pilot of Apollo 9 in 1969. Worden was born in 1932 in Jackson, Michigan, and like his commander, had attended West Point (class of 1955) and served in the Air Force. Worden earned two master's degrees in engineering from Michigan in 1963. Irwin had been born in 1930 in Pittsburgh, and had attended the United States Naval Academy, graduating in 1951 and serving in the Air Force, receiving a master's degree from Michigan in 1957. Both Worden and Irwin were selected in the fifth group of astronauts (1966), and Apollo 15 would be their only spaceflight. All three future astronauts had attended Michigan, and two had taken degrees from there; it had been the first university to offer an aeronautical engineering program. The backup crew was Richard F. Gordon Jr. as commander, Vance D. Brand as command module pilot and Harrison H. Schmitt as lunar module pilot. By the usual rotation of crews, the three would most likely have flown Apollo 18, which was canceled. Brand flew later on the Apollo–Soyuz Test Project and on STS-5, the first operational Space Shuttle mission. With NASA under intense pressure to send a professional scientist to the Moon, Schmitt, a geologist, was selected as LMP of Apollo 17 instead of Joe Engle. Apollo 15's support crew consisted of astronauts Joseph P. Allen, Robert A. Parker and Karl G. Henize. All three were scientist-astronauts, selected in 1967, as the prime crew felt they needed more assistance with the science than with the piloting. None of the support crew would fly during the Apollo program, waiting until the Space Shuttle program to go into space. Mission Control The flight directors for Apollo 15 were as follows: Gerry Griffin, Gold team Milton Windler, Maroon team Glynn Lunney, Black team Gene Kranz, White team During a mission the capsule communicators (CAPCOMs), always fellow astronauts, were the only people who normally would speak to the crew. For Apollo 15, the CAPCOMs were Allen, Brand, C. Gordon Fullerton, Gordon, Henize, Edgar D. Mitchell, Parker, Schmitt and Alan B. Shepard. Planning and training Schmitt and other scientist-astronauts advocated for a greater place for science on the early Apollo missions. They were often met with disinterest from other astronauts, or found science displaced by higher priorities. Schmitt realized that what was needed was an expert teacher who could fire the astronauts' enthusiasm, and contacted Caltech geologist Lee Silver, whom Schmitt introduced to Apollo 13's commander, Jim Lovell, and to its lunar module pilot, Fred Haise, then in training for their mission. Lovell and Haise were willing to go on a field expedition with Silver, and geology became a significant part of their training. Geologist Farouk El-Baz trained the prime crew's command module pilot, Ken Mattingly to inform his planned observations from lunar orbit. The crew's newly acquired skills mostly went unused, due to the explosion that damaged the Apollo 13 spacecraft, and caused an abort of the mission. Apollo 14's CMP, Stuart Roosa, was enthusiastic about geology, but the mission commander, Shepard, less so. Already familiar with the spacecraft as the backup crew for Apollo 12, Scott, Worden and Irwin could devote more of their training time as prime crew for Apollo 15 to geology and sampling techniques. Scott was determined that his crew bring back the maximum amount of scientific data possible, and met with Silver in April 1970 to begin planning the geological training. Schmitt's assignment as Apollo 15's backup LMP made him an insider, and allowed him to spark competition between the prime and backup crews. The cancellation of two Apollo missions in September 1970 transformed Apollo 15 into a J mission, with a longer stay on the lunar surface, and the first Lunar Roving Vehicle (LRV). This change was welcomed by Scott, who according to David West Reynolds in his account of the Apollo program, was "something more than a hotshot pilot. Scott had the spirit of a true explorer", one determined to get the most from the J mission. The additional need for communications, including from planned experiments and the rover, required the near-rebuilding of the Honeysuckle Creek Tracking Station in Australia. Geology field trips took place about once a month throughout the crew's 20 months of training. At first, Silver would take the commanders and LMPs from the prime and backup crews to geological sites in Arizona and New Mexico as if for a normal field geology lesson, but closer to launch, these trips became more realistic. Crews began to wear mock-ups of the backpacks they would carry while hiking near the Rio Grande Gorge, and communicate using walkie-talkies to a CAPCOM in a tent. The CAPCOM was accompanied by a geologist unfamiliar with the area who would rely on the astronauts' descriptions to interpret the findings, and familiarized the crew members with describing landscapes to people who could not see them. Considering himself a serious amateur, Scott came to enjoy field geology. The decision to land at Hadley came in September 1970. The Site Selection Committee had narrowed the field down to two sites—Hadley Rille, a deep channel on the edge of Mare Imbrium close to the Apennine mountains or the crater Marius, near which were a group of low, possibly volcanic, domes. Although not ultimately his decision, the commander of a mission always held great sway. To David Scott the choice was clear, as Hadley "had more variety. There is a certain intangible quality which drives the spirit of exploration and I felt that Hadley had it. Besides it looked beautiful and usually when things look good they are good." The selection of Hadley was made although NASA lacked high resolution images of the landing site; none had been made as the site was considered too rough to risk one of the earlier Apollo missions. The proximity of the Apennine mountains to the Hadley site required a landing approach trajectory of 26 degrees, far steeper than the 15 degrees in earlier Apollo landings. The expanded mission meant that Worden spent much of his time at North American Rockwell's facilities at Downey, California, where the command and service module (CSM) was being built. He undertook a different kind of geology training. Working with El-Baz, he studied maps and photographs of the craters he would pass over while orbiting alone in the CSM. As El-Baz listened and gave feedback, Worden learned how to describe lunar features in a way that would be useful to the scientists who would listen to his transmissions back on Earth. Worden found El-Baz to be an enjoyable and inspiring teacher. Worden usually accompanied his crewmates on their geology field trips, though he was often in an airplane overhead, describing features of the landscape as the plane simulated the speed at which the lunar landscape would pass below the CSM. The demands of the training strained both Worden's and Irwin's marriages; each sought Scott's advice, fearing a divorce might endanger their places on the mission as not projecting the image NASA wanted for the astronauts. Scott consulted Director of Flight Crew Operations Deke Slayton, their boss, who stated what was important was that the astronauts do their jobs. Although the Irwins overcame their marital difficulties, the Wordens divorced before the mission. Hardware Spacecraft Apollo 15 used command and service module CSM-112, which was given the call sign Endeavour, named after HMS Endeavour, and lunar module LM-10, call sign Falcon, named after the United States Air Force Academy mascot. Scott explained the choice of the name Endeavour on the grounds that its captain, James Cook had commanded the first purely scientific sea voyage, and Apollo 15 was the first lunar landing mission on which there was a heavy emphasis on science. Apollo 15 took with it a small piece of wood from Cook's ship, while Falcon carried two falcon feathers to the Moon in recognition of the crew's service in the Air Force. Also part of the spacecraft were a Launch Escape System and a Spacecraft-Lunar Module Adapter, numbered SLA-19. Technicians at the Kennedy Space Center had some problems with the instruments in the service module's scientific instrument module (SIM) bay. Some instruments were late in arriving, and principal investigators or representatives of NASA contractors sought further testing or to make small changes. Mechanical problems came from the fact the instruments were designed to operate in space, but had to be tested on the surface of the Earth. As such, things like the 7.5 m (24 ft) booms for the mass and gamma ray spectrometers could be tested only using equipment that tried to mimic the space environment, and, in space, the mass spectrometer boom several times did not fully retract. On the lunar module, the fuel and oxidizer tanks were enlarged on both the descent and ascent stages, and the engine bell on the descent stage was extended. Batteries and solar cells were added for increased electrical power. In all this increased the weight of the lunar module to , heavier than previous models. If Apollo 15 had flown as an H mission, it would have been with CSM-111 and LM-9. That CSM was used by the Apollo–Soyuz Test Project in 1975, but the lunar module went unused and is now at the Kennedy Space Center Visitor Complex. Endeavour is on display at the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Dayton, Ohio, following its transfer of ownership from NASA to the Smithsonian in December 1974. Launch vehicle The Saturn V that launched Apollo 15 was designated SA-510, the tenth flight-ready model of the rocket. As the payload of the rocket was greater, changes were made to the rocket and to its launch trajectory. It was launched in a more southerly direction (80–100 degrees azimuth) than previous missions, and the Earth parking orbit was lowered to . These two changes meant more could be launched. The propellant reserves were reduced and the number of retrorockets on the S-IC first stage (used to separate the spent first stage from the S-II second stage) reduced from eight to four. The four outboard engines of the S-IC would be burned longer and the center engine would also burn longer. Changes were also made to the S-II to dampen pogo oscillations. Once all major systems were installed in the SaturnV, it was moved from the Vehicle Assembly Building to the launch site, Launch Complex 39A. During late June and early July 1971, the rocket and Launch Umbilical Tower (LUT) were struck by lightning at least four times. There was no damage to the vehicle, and only minor damage to ground support equipment. Space suits The Apollo 15 astronauts wore redesigned space suits. On all previous Apollo flights, including the non-lunar flights, the commander and lunar module pilot had worn suits with the life support, liquid cooling, and communications connections in two parallel rows of three. On Apollo 15, the new suits, dubbed the "A7LB", had the connectors situated in triangular pairs. This new arrangement, along with the relocation of the entry zipper (which went in an up-down motion on the old suits), to run diagonally from the right shoulder to the left hip, aided in suiting and unsuiting in the cramped confines of the spacecraft. It also allowed for a new waist joint, letting the astronauts bend completely over, and sit on the rover. Upgraded backpacks allowed for longer-duration moonwalks. As in all missions from and after Apollo 13, the commander's suit bore a red stripe on the helmet, arms and legs. Worden wore a suit similar to those worn by the Apollo 14 astronauts, but modified to interface with Apollo 15's equipment. Gear needed only for lunar surface EVAs, such as the liquid cooling garment, was not included with Worden's suit, as the only EVA he was expected to do was one to retrieve film cartridges from the SIM bay on the flight home. Lunar Roving Vehicle A vehicle that could operate on the surface of the Moon had been considered by NASA since the early 1960s. An early version was called MOLAB, which had a closed cabin and would have massed about ; some scaled-down prototypes were tested in Arizona. As it became clear NASA would not soon establish a lunar base, such a large vehicle seemed unnecessary. Still, a rover would enhance the J missions, which were to concentrate on science, though its mass was limited to about and it was not then clear that so light a vehicle could be useful. NASA did not decide to proceed with a rover until May 1969, as Apollo 10, the dress rehearsal for the Moon landing, made its way home from lunar orbit. Boeing received the contract for three rovers on a cost-plus basis; overruns (especially in the navigation system) meant the three vehicles eventually cost a total of $40 million. These cost overruns gained considerable media attention at a time of greater public weariness with the space program, when NASA's budget was being cut. The Lunar Roving Vehicle could be folded into a space 5 ft by 20 in (1.5 m by 0.5 m). Unloaded, it weighed 460 lb (209 kg) and when carrying two astronauts and their equipment, 1500 lb (700 kg). Each wheel was independently driven by a horsepower (200 W) electric motor. Although it could be driven by either astronaut, the commander always drove. Travelling at speeds up to 6to 8mph (10to 12km/h), it meant that for the first time the astronauts could travel far afield from their lander and still have enough time to do some scientific experiments. The Apollo 15 rover bore a plaque, reading: "Man's First Wheels on the Moon, Delivered by Falcon, July 30, 1971". During pre-launch testing, the LRV was given additional bracing, lest it collapse if someone sat on it under Earth conditions. Particles and Fields Subsatellite The Apollo 15 Particles and Fields Subsatellite (PFS-1) was a small satellite released into lunar orbit from the SIM bay just before the mission left orbit to return to Earth. Its main objectives were to study the plasma, particle, and magnetic field environment of the Moon and map the lunar gravity field. Specifically, it measured plasma and energetic particle intensities and vector magnetic fields, and facilitated tracking of the satellite velocity to high precision. A basic requirement was that the satellite acquire fields and particle data everywhere on the orbit around the Moon. As well as measuring magnetic fields, the satellite contained sensors to study the Moon's mass concentrations, or mascons. The satellite orbited the Moon and returned data from August 4, 1971, until January 1973, when, following multiple failures of the subsatellite's electronics, ground support was terminated. It is believed to have crashed into the Moon sometime thereafter. Mission highlights Launch and outbound trip Apollo 15 was launched on July 26, 1971, at 9:34am EDT from the Kennedy Space Center at Merritt Island, Florida. The time of launch was at the very start of the two-hour, 37-minute launch window, which would allow Apollo 15 to arrive at the Moon with the proper lighting conditions at Hadley Rille; had the mission been postponed beyond another window on July 27, it could not have been rescheduled until late August. The astronauts had been awakened five and a quarter hours before launch by Slayton, and after breakfast and suiting up, had been taken to Pad 39A, launch site of all seven attempts at crewed lunar landing, and entered the spacecraft about three hours before launch. There were no unplanned delays in the countdown. At 000:11:36 into the mission, the S-IVB engine shut down, leaving Apollo 15 in its planned parking orbit in low Earth orbit. The mission remained there for 2hours and 40 minutes, allowing the crew (and Houston, via telemetry) to check the spacecraft's systems. At 002:50.02.6 into the mission, the S-IVB was restarted for trans-lunar injection (TLI), placing the craft on a path to the Moon. Before TLI, the craft had completed 1.5 orbits around the Earth. The command and service module (CSM) and the lunar module remained attached to the nearly-exhausted S-IVB booster. Once trans-lunar injection had been achieved, placing the spacecraft on a trajectory towards the Moon, explosive cords separated the CSM from the booster as Worden operated the CSM's thrusters to push it away. Worden then maneuvered the CSM to dock with the LM (mounted on the end of the S-IVB), and the combined craft was then separated from the S-IVB by explosives. After Apollo 15 separated from the booster, the S-IVB maneuvered away, and, as planned, impacted the Moon about an hour after the crewed spacecraft entered lunar orbit, though due to an error the impact was away from the intended target. The booster's impact was detected by the seismometers left on the Moon by Apollo 12 and Apollo 14, providing useful scientific data. There was a malfunctioning light on the craft's service propulsion system (SPS); after considerable troubleshooting, the astronauts did a test burn of the system that also served as a midcourse correction. This occurred about 028:40:00 into the mission. Fearing that the light meant the SPS might unexpectedly fire, the astronauts avoided using the control bank with the faulty light, bringing it online only for major burns, and controlling it manually. After the mission returned, the malfunction proved to be caused by a tiny bit of wire trapped within the switch. After purging and renewing the LM's atmosphere to eliminate any contamination, the astronauts entered the LM about 34 hours into the mission, needing to check the condition of its equipment and move in items that would be required on the Moon. Much of this work was televised back to Earth, the camera operated by Worden. The crew discovered a broken outer cover on the Range/Range Rate tapemeter. This was a concern not only because an important piece of equipment, providing information on distance and rate of approach, might not work properly, but because bits of the glass cover were floating around Falcon'''s interior. The tapemeter was supposed to be in a helium atmosphere, but due to the breakage, it was in the LM's oxygen atmosphere. Testing on the ground verified the tapemeter would still work properly, and the crew removed most of the glass using a vacuum cleaner and adhesive tape. As yet, there had been only minor problems, but at about 61:15:00 mission time (the evening of July 28 in Houston), Scott discovered a leak in the water system while preparing to chlorinate the water supply. The crew could not tell where it was coming from, and the issue had the potential to become serious. The experts in Houston found a solution, which was successfully implemented by the crew. The water was mopped up with towels, which were then put out to dry in the tunnel between the command module (CM) and lunar module—Scott stated it looked like someone's laundry. At 073:31:14 into the mission, a second midcourse correction, with less than a second of burn, was made. Although there were four opportunities to make midcourse corrections following TLI, only two were needed. Apollo 15 approached the Moon on July 29, and the lunar orbit insertion (LOI) burn had to be made using the SPS, on the far side of the Moon, out of radio contact with Earth. If no burn occurred, Apollo 15 would emerge from the lunar shadow and come back in radio contact faster than expected; the continued lack of communication allowed Mission Control to conclude that the burn had taken place. When contact resumed, Scott did not immediately give the particulars of the burn, but spoke admiringly of the beauty of the Moon, causing Alan Shepard, the Apollo 14 commander, who was awaiting a television interview, to grumble, "To hell with that shit, give us details of the burn." The 398.36-second burn took place at 078:31:46.7 into the mission at an altitude of above the Moon, and placed Apollo 15 in an elliptical lunar orbit of . Lunar orbit and landing On Apollo 11 and 12, the lunar module decoupled from the CSM and descended to a much lower orbit from which the lunar landing attempt commenced; to save fuel in an increasingly heavy lander, beginning with Apollo 14, the SPS in the service module made that burn, known as descent orbit insertion (DOI), with the lunar module still attached to the CSM. The initial orbit Apollo 15 was in had its apocynthion, or high point, over the landing site at Hadley; a burn at the opposite point in the orbit was performed, with the result that Hadley would now be under the craft's pericynthion, or low point. The DOI burn was performed at 082:39:49.09 and took 24.53 seconds; the result was an orbit with apocynthion of and pericynthion of . Overnight between July 29 and 30, as the crew rested, it became apparent to Mission Control that mass concentrations in the Moon were making Apollo 15's orbit increasingly elliptical—pericynthion was by the time the crew was awakened on July 30. This, and uncertainty as to the exact altitude of the landing site, made it desirable that the orbit be modified, or trimmed. Using the craft's RCS thrusters, this took place at 095:56:44.70, lasting 30.40 seconds, and raised the pericynthion to and the apocynthion to . As well as preparing the lunar module for its descent, the crew continued observations of the Moon (including of the landing site at Hadley) and provided television footage of the surface. Then, Scott and Irwin entered the lunar module in preparation for the landing attempt. Undocking was planned for 100:13:56, over the far side of the Moon, but nothing happened when separation was attempted. After analyzing the problem, the crew and Houston decided the probe instrumentation umbilical was likely loose or disconnected; Worden went into the tunnel connecting the command and lunar modules and determined this was so, seating it more firmly. With the problem resolved, Falcon separated from Endeavour at 100:39:16.2, about 25 minutes late, at an altitude of . Worden in Endeavour executed a SPS burn at 101:38:58.98 to send Endeavour to an orbit of by in preparation for his scientific work. Aboard Falcon, Scott and Irwin prepared for powered descent initiation (PDI), the burn that was to place them on the lunar surface, and, after Mission Control gave them permission, they initiated PDI at 104:30:09.4 at an altitude of , slightly higher than planned. During the first part of the descent, Falcon was aligned so the astronauts were on their backs and thus could not see the lunar surface below them, but after the craft made a pitchover maneuver, they were upright and could see the surface in front of them. Scott, who as commander performed the landing, was confronted with a landscape that did not at first seem to resemble what he had seen during simulations. Part of this was due to an error in the landing path of some , of which CAPCOM Ed Mitchell informed the crew prior to pitchover; part because the craters Scott had relied on in the simulator were difficult to make out under lunar conditions, and he initially could not see Hadley Rille. He concluded that they were likely to overshoot the planned landing site, and, once he could see the rille, started maneuvering the vehicle to move the computer's landing target back towards the planned spot, and looked for a relatively smooth place to land. Below about , Scott could see nothing of the surface because of the quantities of lunar dust being displaced by Falcons exhaust. Falcon had a larger engine bell than previous LMs, in part to accommodate a heavier load, and the importance of shutting down the engine at initial contact rather than risk "blowback", the exhaust reflecting off the lunar surface and going back into the engine (possibly causing an explosion) had been impressed on the astronauts by mission planners. Thus, when Irwin called "Contact", indicating that one of the probes on the landing leg extensions had touched the surface, Scott immediately shut off the engine, letting the lander fall the remaining distance to the surface. Already moving downward at about per second, Falcon dropped from a height of . Scott's speed resulted in what was likely the hardest lunar landing of any of the crewed missions, at about per second, causing a startled Irwin to yell "Bam!" Scott had landed Falcon on the rim of a small crater he could not see, and the lander settled back at an angle of 6.9 degrees and to the left of 8.6 degrees. Irwin described it in his autobiography as the hardest landing he had ever been in, and he feared that the craft would keep tipping over, forcing an immediate abort. Falcon landed at 104:42:29.3 (22:16:29 GMT on July 30), with approximately 103 seconds of fuel remaining, about from the planned landing site. After Irwin's exclamation, Scott reported, "Okay, Houston. The Falcon is on the Plain at Hadley." Once within the planned landing zone, the increased mobility provided by the Lunar Roving Vehicle made unnecessary any further maneuvering. Lunar surface Stand-up EVA and first EVA With Falcon due to remain on the lunar surface for almost three days, Scott deemed it important to maintain the circadian rhythm they were used to, and as they had landed in the late afternoon, Houston time, the two astronauts were to sleep before going onto the surface. But the time schedule allowed Scott to open the lander's top hatch (usually used for docking) and spend a half hour looking at their surroundings, describing them, and taking photographs. Lee Silver had taught him the importance of going to a high place to survey a new field site, and the top hatch served that purpose. Deke Slayton and other managers were initially opposed due to the oxygen that would be lost, but Scott got his way. During the only stand-up extravehicular activity (EVA) ever performed through the LM's top hatch on the lunar surface, Scott was able to make plans for the following day's EVA. He offered Irwin a chance to look out as well, but this would have required rearranging the umbilicals connecting Irwin to Falcon'''s life support system, and he declined. After repressurizing the spacecraft, Scott and Irwin removed their space suits for sleep, becoming the first astronauts to doff their suits while on the Moon. Throughout the sleep period Mission Control in Houston monitored a slow but steady oxygen loss. Scott and Irwin eventually were awakened an hour early, and the source of the problem was found to be an open valve on the urine transfer device. In post-mission debriefing, Scott recommended that future crews be woken at once under similar circumstances. After the problem was solved, the crew began preparation for the first Moon walk. After donning their suits and depressurizing the cabin, Scott and Irwin began their first full EVA, becoming the seventh and eighth humans, respectively, to walk on the Moon. They began deploying the lunar rover, stored folded up in a compartment of Falcons descent stage, but this proved troublesome due to the slant of the lander. The experts in Houston suggested lifting the front end of the rover as the astronauts pulled it out, and this worked. Scott began a system checkout. One of the batteries gave a zero voltage reading, but this was only an instrumentation problem. A greater concern was that the front wheel steering would not work. However, the rear wheel steering was sufficient to maneuver the vehicle. Completing his checkout, Scott said "Okay. Out of detent; we're moving", maneuvering the rover away from Falcon in mid-sentence. These were the first words uttered by a human while driving a vehicle on the Moon. The rover carried a television camera, controlled remotely from Houston by NASA's Ed Fendell. The resolution was not high compared to the still photographs that would be taken, but the camera allowed the geologists on Earth to indirectly participate in Scott and Irwin's activities. The rille was not visible from the landing site, but as Scott and Irwin drove over the rolling terrain, it came into view. They were able to see Elbow crater, and they began to drive in that direction. Reaching Elbow, a known location, allowed Mission Control to backtrack and get closer to pinpointing the location of the lander. The astronauts took samples there, and then drove to another crater on the flank of Mons Hadley Delta, where they took more. After concluding this stop, they returned to the lander to drop off their samples and prepare to set up the Apollo Lunar Surface Experiments Package (ALSEP), the scientific instruments that would remain when they left. Scott had difficulty drilling the holes required for the heat flow experiment, and the work was not completed when they had to return to the lander. The first EVA lasted 6hours and 32 minutes. Second and third EVAs The rover's front steering, inoperative during the first EVA, worked during the second and third ones. The target of the second EVA, on August 1, was the slope of Mons Hadley Delta, where the pair sampled boulders and craters along the Apennine Front. They spent an hour at Spur crater, during which the astronauts collected a sample dubbed the Genesis Rock. This rock, an anorthosite, is believed to be part of the early lunar crust—the hope of finding such a specimen had been one reason the Hadley area had been chosen. Once back at the landing site, Scott continued to try to drill holes for experiments at the ALSEP site, with which he had struggled the day before. After conducting soil-mechanics experiments and raising the U.S. flag, Scott and Irwin returned to the LM. EVA2 lasted 7hours and 12 minutes. Although Scott had eventually been successful at drilling the holes, he and Irwin had been unable to retrieve a core sample, and this was an early order of business during EVA 3, their third and final moonwalk. Time that could have been devoted to geology ticked away as Scott and Irwin attempted to pull it out. Once it had been retrieved, more time passed as they attempted to break the core into pieces for transport to Earth. Hampered by an incorrectly mounted vise on the rover, they eventually gave up on this—the core would be transported home with one segment longer than planned. Scott wondered if the core was worth the amount of time and effort invested, and the CAPCOM, Joe Allen, assured him it was. The core proved one of the most important items brought back from the Moon, revealing much about its history, but the expended time meant the planned visit to a group of hills known as the North Complex had to be scrubbed. Instead, the crew again ventured to the edge of Hadley Rille, this time to the northwest of the immediate landing site. Once the astronauts were beside the LM, Scott used a kit provided by the Postal Service to cancel a first day cover of two stamps being issued on August 2, the current date. Scott then performed an experiment in view of the television camera, using a falcon feather and hammer to demonstrate Galileo's theory that all objects in a given gravity field fall at the same rate, regardless of mass, in the absence of aerodynamic drag. He dropped the hammer and feather at the same time; because of the negligible lunar atmosphere, there was no drag on the feather, which hit the ground at the same time as the hammer. This was Joe Allen's idea (he also served as CAPCOM during it) and was part of an effort to find a memorable popular science experiment to do on the Moon along the lines of Shepard's hitting of golf balls. The feather was most likely from a female gyrfalcon (a type of falcon), a mascot at the United States Air Force Academy. Scott then drove the rover to a position away from the LM, where the television camera could be used to observe the lunar liftoff. Near the rover, he left a small aluminum statuette called Fallen Astronaut, along with a plaque bearing the names of 14 known American astronauts and Soviet cosmonauts who had died in the furtherance of space exploration. The memorial was left while the television camera was turned away; he told Mission Control he was doing some cleanup activities around the rover. Scott disclosed the memorial in a post-flight news conference. He also placed a Bible on the control panel of the rover before leaving it for the last time to enter the LM. The EVA lasted 4 hours, 49 minutes and 50 seconds. In total, the two astronauts spent 18 hours outside the LM and collected approximately of lunar samples. Command module activities After the departure of Falcon, Worden in Endeavour executed a burn to take the CSM to a higher orbit. While Falcon was on the Moon, the mission effectively split, Worden and the CSM being assigned their own CAPCOM and flight support team. Worden got busy with the tasks that were to occupy him for much of the time he spent in space alone: photography and operating the instruments in the SIM bay. The door to the SIM bay had been explosively jettisoned during the translunar coast. Filling previously-unused space in the service module, the SIM bay contained a gamma-ray spectrometer, mounted on the end of a boom, an X-ray spectrometer and a laser altimeter, which failed part way through the mission. Two cameras, a stellar camera and a metric camera, together comprised the mapping camera, which was complemented by a panoramic camera, derived from spy technology. The altimeter and cameras permitted the exact time and location from which pictures were taken to be determined. Also present were an alpha particle spectrometer, which could be used to detect evidence of lunar volcanism, and a mass spectrometer, also on a boom in the hope it would be unaffected by contamination from the ship. The boom would prove troublesome, as Worden would not always be able to get it to retract. Endeavour was slated to pass over the landing site at the moment of planned landing, but Worden could not see Falcon and did not spot it until a subsequent orbit. He also exercised to avoid muscle atrophy, and Houston kept him up to date on Scott and Irwin's activities on the lunar surface. The panoramic camera did not operate perfectly, but provided enough images that no special adjustment was made. Worden took many photographs through the command module's windows, often with shots taken at regular intervals. His task was complicated by the lack of a working mission timer in the Lower Equipment Bay of the command module, as its circuit breaker had popped en route to the Moon. Worden's observations and photographs would inform the decision to send Apollo 17 to Taurus-Littrow to search for evidence of volcanic activity. There was a communications blackout when the CSM passed over the far side of the Moon from Earth; Worden greeted each resumption of contact with the words, "Hello, Earth. Greetings from Endeavour", expressed in different languages. Worden and El-Baz had come up with the idea, and the geology instructor had aided the astronaut in accumulating translations. Results from the SIM bay experiments would include the conclusion, from data gathered by the X-ray spectrometer, that there was greater fluorescent X-ray flux than anticipated, and that the lunar highlands were richer in aluminum than were the mares. Endeavour was in a more inclined orbit than previous crewed missions, and Worden saw features that were not known previously, supplementing photographs with thorough descriptions. By the time Scott and Irwin were ready to take off from the lunar surface and return to Endeavour, the CSM's orbit had drifted due to the rotation of the Moon, and a plane change burn was required to ensure that the CSM's orbit would be in the same plane as that of the LM once it took off from the Moon. Worden accomplished the 18-second burn with the SPS. Return to Earth Falcon lifted off the Moon at 17:11:22 GMT on August2 after 66 hours and 55 minutes on the lunar surface. Docking with the CSM took place just under two hours later. After the astronauts transferred samples and other items from the LM to the CSM, the LM was sealed off, jettisoned, and intentionally crashed into the lunar surface, an impact registered by the seismometers left by Apollo 12, 14 and 15. The jettison proved difficult because of problems getting airtight seals, requiring a delay in discarding the LM. After the jettison, Slayton came on the loop to recommend the astronauts take sleeping pills, or at least that Scott and Irwin do so. Scott as mission commander refused to allow it, feeling there was no need. During the EVAs, the doctors had noticed irregularities in both Scott's and Irwin's heartbeats, but the crew were not informed during the flight. Irwin had heart problems after retiring as an astronaut and died in 1991 of a heart attack; Scott felt that he as commander should have been informed of the biomedical readings. NASA doctors at the time theorized the heart readings were due to potassium deficiency, due to their hard work on the surface and inadequate resupply through liquids. The crew spent the next two days working on orbital science experiments, including more observations of the Moon from orbit and releasing the subsatellite. Endeavour departed lunar orbit with another burn of the SPS engine of 2minutes 21 seconds at 21:22:45 GMT on August4. The next day, during the return to Earth, Worden performed a 39-minute EVA to retrieve film cassettes from the service module's scientific instrument module (SIM) bay, with assistance from Irwin who remained at the command module's hatch. At approximately 171,000 nautical miles (197,000 mi; 317,000 km) from Earth, it was the first "deep space" EVA in history, performed at great distance from any planetary body. As of , it remains one of only three such EVAs, all performed during Apollo's J missions under similar circumstances. Later that day, the crew set a record for the longest Apollo flight to that point. On approach to Earth on August7, the service module was jettisoned, and the command module reentered the Earth's atmosphere. Although one of the three parachutes on the CM failed after deploying, likely due to damage as the spacecraft vented fuel, only two were required for a safe landing (one extra for redundancy). Upon landing in the North Pacific Ocean, the CM and crew were recovered and taken aboard the recovery ship, , after a mission lasting 12 days, 7hours, 11 minutes and 53 seconds. Assessment The mission objectives for Apollo 15 were to "perform selenological inspection, survey, and sampling of materials and surface features in a pre-selected area of the Hadley–Apennine region. Emplace and activate surface experiments. Evaluate the capability of the Apollo equipment to provide extended lunar surface stay time, increased extravehicular operations, and surface mobility. [and] Conduct inflight experiments and photographic tasks from lunar orbit." It achieved all those objectives. The mission also completed a long list of other tasks, including experiments. One of the photographic objectives, to obtain images of the gegenschein from lunar orbit, was not completed, as the camera was not pointed at the proper spot in the sky. According to the conclusions in the Apollo 15 Mission Report, the journey "was the fourth lunar landing and resulted in the collection of a wealth of scientific information. The Apollo system, in addition to providing a means of transportation, excelled as an operational scientific facility." Apollo 15 saw an increase in public interest in the Apollo program, in part due to fascination with the LRV, as well as the attractiveness of the Hadley Rille site and the increased television coverage. According to David Woods in the Apollo Lunar Flight Journal, Controversies Despite the successful mission, the careers of the crew were tarnished by a deal they had made before the flight to carry postal covers to the Moon in exchange for about $7,000 each, which they planned to set aside for their children. Walter Eiermann, who had many professional and social contacts with NASA employees and the astronaut corps, served as intermediary between the astronauts and a West German stamp dealer, Hermann Sieger, and Scott carried about 400 covers onto the spacecraft; they were subsequently transferred into Falcon and remained inside the lander during the astronauts' activities on the surface of the Moon. After the return to Earth, 100 of the covers were given to Eiermann, who passed them on to Sieger, receiving a commission. No permission had been received from Slayton to carry the covers, as required. The 100 covers were put on sale to Sieger's customers in late 1971 at a price of about $1,500 each. After receiving the agreed payments, the astronauts returned them, and accepted no compensation. In April 1972, Slayton learned that unauthorized covers had been carried, and removed the three as the backup crew for Apollo 17. The matter became public in June 1972 and the three astronauts were reprimanded for poor judgment; none ever flew in space again. During the investigation, the astronauts had surrendered those covers still in their possession; after Worden filed suit, they were returned in 1983, something Slate magazine deemed an exoneration. Another controversy surrounding the Fallen Astronaut statuette that Scott had left on the Moon, arose later. Before the mission, Scott had made a verbal agreement with Belgian artist Paul Van Hoeydonck to sculpt the statuette. Scott's intent, in keeping with NASA's strict policy against commercial exploitation of the US government's space program, was for a simple memorial with a minimum of publicity, keeping the artist anonymous, no commercial replicas being made except for a single copy for public exhibit at the National Air and Space Museum commissioned after the sculpture's public disclosure during the post-flight press conference. Van Hoeydonck claims to have had a different understanding of the agreement, by which he would have received recognition as the creator of a tribute to human space exploration, with rights to sell replicas to the public. Under pressure from NASA, Van Hoeydonck canceled a plan to publicly sell 950 signed copies. During the congressional hearings into the postal covers and Fallen Astronaut matters, two Bulova timepieces taken on the mission by Scott were also matters of controversy. Before the mission, Scott had been introduced to Bulova's representative, General James McCormack by Apollo 8 commander Frank Borman. Bulova had been seeking to have its timepieces taken on Apollo missions, but after evaluation, NASA had selected Omega watches instead. Scott brought the Bulova timepieces on the mission, without disclosing them to Slayton. During Scott's second EVA, the crystal on his NASA standard issue Omega Speedmaster watch popped off, and, during the third EVA, he used a Bulova watch. The Bulova Chronograph Model #88510/01 that Scott wore on the lunar surface was a prototype, given to him by the Bulova Company, and it is the only privately owned watch to have been worn while walking on the lunar surface. There are images of him wearing this watch, when he saluted the American flag on the Moon, with the Hadley Delta expanse in the background. In 2015, the watch sold for $1.625 million, which makes it one of the most expensive astronaut-owned artifact ever sold at auction and one of the most expensive watches sold at auction. Mission insignia The Apollo 15 mission patch carries Air Force motifs, a nod to the crew's service there, just as the Apollo 12 all-Navy crew's patch had featured a sailing ship. The circular patch features stylized red, white and blue birds flying over Hadley Rille. Immediately behind the birds, a line of craters forms the Roman numeral XV. The Roman numerals were hidden in emphasized outlines of some craters after NASA insisted that the mission number be displayed in Arabic numerals. The artwork is circled in red, with a white band giving the mission and crew names and a blue border. Scott contacted fashion designer Emilio Pucci to design the patch, who came up with the basic idea of the three-bird motif on a square patch. The crew changed the shape to round and the colors from blues and greens to a patriotic red, white and blue. Worden stated that each bird also represented an astronaut, white being his own color (and as Command Module Pilot, uppermost), Scott being the blue bird and Irwin the red. The colors matched Chevrolet Corvettes leased by the astronauts at KSC; a Florida car dealer had, since the time of Project Mercury, been leasing Chevrolets to astronauts for $1 and later selling them to the public. The astronauts were photographed with the cars and the training LRV for the June 11, 1971, edition of Life magazine. Visibility from space The halo area of the Apollo 15 landing site, created by the LM's exhaust plume, was observed by a camera aboard the Japanese lunar orbiter SELENE and confirmed by comparative analysis of photographs in May 2008. This corresponds well to photographs taken from the Apollo 15 command module showing a change in surface reflectivity due to the plume, and was the first visible trace of crewed landings on the Moon seen from space since the close of the Apollo program. Gallery Still images Multimedia See also List of artificial objects on the Moon List of spacewalks and moonwalks 1965–1999 Notes References Apollo Lunar Flight Journal Apollo Lunar Surface Journal Bibliography External links Apollo 15 Preliminary Science Report (1972) by the Manned Spacecraft Center Apollo 15 Traverses, 41B4S4(25), Lunar Photomap at Lunar and Planetary Institute 1975 summary report by NASA 1972 NASA press releases at collectSPACE Moonport: A History of Apollo Launch Facilities and Operations, a 1978 book published by NASA Part 1 and part 2 of Apollo 15: In the Mountains of the Moon, a NASA documentary film on the Apollo 15 mission, at the Internet Archive 2011 podcast interview with AstrotalkUK 2016 interview with Worden at Medium James Irwin David Scott Alfred Worden Articles containing video clips Apollo program missions Extravehicular activity Lunar rovers Crewed missions to the Moon Sample return missions Soft landings on the Moon Spacecraft which reentered in 1971 Spacecraft launched in 1971 June 1971 events Spacecraft launched by Saturn rockets 1971 on the Moon

1970

https://en.wikipedia.org/wiki/Apollo%2016

Apollo 16

Apollo 16 (April 1627, 1972) was the tenth crewed mission in the United States Apollo space program, administered by NASA, and the fifth and penultimate to land on the Moon. It was the second of Apollo's "J missions", with an extended stay on the lunar surface, a focus on science, and the use of the Lunar Roving Vehicle (LRV). The landing and exploration were in the Descartes Highlands, a site chosen because some scientists expected it to be an area formed by volcanic action, though this proved not to be the case. The mission was crewed by Commander John Young, Lunar Module Pilot Charles Duke and Command Module Pilot Ken Mattingly. Launched from the Kennedy Space Center in Florida on April 16, 1972, Apollo 16 experienced a number of minor glitches en route to the Moon. These culminated with a problem with the spaceship's main engine that resulted in a six-hour delay in the Moon landing as NASA managers contemplated having the astronauts abort the mission and return to Earth, before deciding the problem could be overcome. Although they permitted the lunar landing, NASA had the astronauts return from the mission one day earlier than planned. After flying the lunar module to the Moon's surface on April 21, Young and Duke spent 71 hours—just under three days—on the lunar surface, during which they conducted three extravehicular activities or moonwalks, totaling 20 hours and 14 minutes. The pair drove the lunar rover, the second used on the Moon, for . On the surface, Young and Duke collected of lunar samples for return to Earth, including Big Muley, the largest Moon rock collected during the Apollo missions. During this time Mattingly orbited the Moon in the command and service module (CSM), taking photos and operating scientific instruments. Mattingly, in the command module, spent 126 hours and 64 revolutions in lunar orbit. After Young and Duke rejoined Mattingly in lunar orbit, the crew released a subsatellite from the service module (SM). During the return trip to Earth, Mattingly performed a one-hour spacewalk to retrieve several film cassettes from the exterior of the service module. Apollo 16 returned safely to Earth on April 27, 1972. Crew and key Mission Control personnel John Young, the mission commander, was 41 years old and a captain in the Navy at the time of Apollo 16. Becoming an astronaut in 1962 as part of the second group to be selected by NASA, he flew in Gemini 3 with Gus Grissom in 1965, becoming the first American not of the Mercury Seven to fly in space. He thereafter flew in Gemini 10 (1966) with Michael Collins and as command module pilot of Apollo 10 (1969). With Apollo 16, he became the second American, after Jim Lovell, to fly in space four times. Thomas Kenneth "Ken" Mattingly, the command module pilot, was 36 years old and a lieutenant commander in the Navy at the time of Apollo 16. Mattingly had been selected in NASA's fifth group of astronauts in 1966. He was a member of the support crew for Apollo 8 and Apollo 9. Mattingly then undertook parallel training with Apollo 11's backup CMP, William Anders, who had announced his resignation from NASA effective at the end of July 1969 and would thus be unavailable if the first lunar landing mission was postponed. Had Anders left NASA before Apollo 11 flew, Mattingly would have taken his place on the backup crew. Mattingly had originally been assigned to the prime crew of Apollo 13, but was exposed to rubella through Charles Duke, at that time with Young on Apollo 13's backup crew; Duke had caught it from one of his children. Mattingly never contracted the illness, but three days before launch was removed from the crew and replaced by his backup, Jack Swigert. Duke, also a Group 5 astronaut and a space rookie, had served on the support crew of Apollo 10 and was a capsule communicator (CAPCOM) for Apollo 11. A lieutenant colonel in the Air Force, Duke was 36 years old at the time of Apollo 16, which made him the youngest of the twelve astronauts who walked on the Moon during Apollo as of the time of the mission. All three men were announced as the prime crew of Apollo 16 on March 3, 1971. Apollo 16's backup crew consisted of Fred W. Haise Jr. (commander, who had flown on Apollo 13), Stuart A. Roosa (CMP, who had flown on Apollo 14) and Edgar D. Mitchell (LMP, also Apollo 14). Although not officially announced, Director of Flight Crew Operations Deke Slayton, the astronauts' supervisor, had originally planned to have a backup crew of Haise as commander, William R. Pogue (CMP) and Gerald P. Carr (LMP), who were targeted for the prime crew assignment on Apollo 19. However, after the cancellations of Apollos 18 and 19 were announced in September 1970, it made more sense to use astronauts who had already flown lunar missions as backups, rather than training others on what would likely be a dead-end assignment. Subsequently, Roosa and Mitchell were assigned to the backup crew, while Pogue and Carr were reassigned to the Skylab program where they flew on Skylab 4. For projects Mercury and Gemini, a prime and a backup crew had been designated, but for Apollo, a third group of astronauts, known as the support crew, was also designated. Slayton created the support crews early in the Apollo Program on the advice of Apollo crew commander James McDivitt, who would lead Apollo 9. McDivitt believed that, with preparation going on in facilities across the U.S., meetings that needed a member of the flight crew would be missed. Support crew members were to assist as directed by the mission commander. Usually low in seniority, they assembled the mission's rules, flight plan, and checklists, and kept them updated. For Apollo 16, they were: Anthony W. England, Karl G. Henize, Henry W. Hartsfield Jr., Robert F. Overmyer and Donald H. Peterson. Flight directors were Pete Frank and Philip Shaffer, first shift, Gene Kranz and Donald R. Puddy, second shift, and Gerry Griffin, Neil B. Hutchinson and Charles R. Lewis, third shift. Flight directors during Apollo had a one-sentence job description: "The flight director may take any actions necessary for crew safety and mission success." CAPCOMs were Haise, Roosa, Mitchell, James B. Irwin, England, Peterson, Hartsfield, and C. Gordon Fullerton. Mission insignia and call signs The insignia of Apollo 16 is dominated by a rendering of an American eagle and a red, white and blue shield, representing the people of the United States, over a gray background representing the lunar surface. Overlaying the shield is a gold NASA vector, orbiting the Moon. On its gold-outlined blue border, there are 16 stars, representing the mission number, and the names of the crew members: Young, Mattingly, Duke. The insignia was designed from ideas originally submitted by the crew of the mission, by Barbara Matelski of the graphics shop at the Manned Spacecraft Center in Houston. Young and Duke chose "Orion" for the lunar module's call sign, while Mattingly chose "Casper" for the command and service module. According to Duke, he and Young chose "Orion" for the LM because they wanted something connected with the stars. Orion is one of the brightest constellations as seen from Earth, and one visible to the astronauts throughout their journey. Duke also stated, "it is a prominent constellation and easy to pronounce and transmit to Mission Control". Mattingly said he chose "Casper", evoking Casper the Friendly Ghost, because "there are enough serious things in this flight, so I picked a non-serious name." Planning and training Landing site selection Apollo 16 was the second of Apollo's J missions, featuring the use of the Lunar Roving Vehicle, increased scientific capability, and three-day lunar surface stays. As Apollo 16 was the penultimate mission in the Apollo program and there was no major new hardware or procedures to test on the lunar surface, the last two missions (the other being Apollo 17) presented opportunities for astronauts to clear up some of the uncertainties in understanding the Moon's characteristics. Scientists sought information on the Moon's early history, which might be obtained from its ancient surface features, the lunar highlands. Previous Apollo expeditions, including Apollo 14 and Apollo 15, had obtained samples of pre-mare lunar material, likely thrown from the highlands by meteorite impacts. These were dated from before lava began to upwell from the Moon's interior and flood the low areas and basins. Nevertheless, no Apollo mission had actually visited the lunar highlands. Apollo 14 had visited and sampled a ridge of material ejected by the impact that created the Mare Imbrium impact basin. Likewise, Apollo 15 had also sampled material in the region of Imbrium, visiting the basin's edge. Because the Apollo 14 and Apollo 15 landing sites were closely associated with the Imbrium basin, there was still the chance that different geologic processes were prevalent in areas of the lunar highlands far from Mare Imbrium. Scientist Dan Milton, studying photographs of the highlands from Lunar Orbiter photographs, saw an area in the Descartes region of the Moon with unusually high albedo that he theorized might be due to volcanic rock; his theory quickly gained wide support. Several members of the scientific community noted that the central lunar highlands resembled regions on Earth that were created by volcanism processes and hypothesized the same might be true on the Moon. They hoped scientific output from the Apollo 16 mission would provide an answer. Some scientists advocated for a landing near the large crater, Tycho, but its distance from the lunar equator and the fact that the lunar module would have to approach over very rough terrain ruled it out. The Ad Hoc Apollo Site Evaluation Committee met in April and May 1971 to decide the Apollo 16 and 17 landing sites; it was chaired by Noel Hinners of Bellcomm. There was consensus the final landing sites should be in the lunar highlands, and among the sites considered for Apollo 16 were the Descartes Highlands region west of Mare Nectaris and the crater Alphonsus. The considerable distance between the Descartes site and previous Apollo landing sites would also be beneficial for the network of seismometers, deployed on each landing mission beginning with Apollo 12. At Alphonsus, three scientific objectives were determined to be of primary interest and paramount importance: the possibility of old, pre-Imbrium impact material from within the crater's wall, the composition of the crater's interior and the possibility of past volcanic activity on the floor of the crater at several smaller "dark halo" craters. Geologists feared, however, that samples obtained from the crater might have been contaminated by the Imbrium impact, thus preventing Apollo 16 from obtaining samples of pre-Imbrium material. There also remained the distinct possibility that this objective would have already been satisfied by the Apollo 14 and Apollo 15 missions, as the Apollo 14 samples had not yet been completely analyzed and samples from Apollo 15 had not yet been obtained. On June 3, 1971, the site selection committee decided to target the Apollo 16 mission for the Descartes site. Following the decision, the Alphonsus site was considered the most likely candidate for Apollo 17, but was eventually rejected. With the assistance of orbital photography obtained on the Apollo 14 mission, the Descartes site was determined to be safe enough for a crewed landing. The specific landing site was between two young impact craters, North Ray and South Ray craters – in diameter, respectively – which provided "natural drill holes" which penetrated through the lunar regolith at the site, thus leaving exposed bedrock that could be sampled by the crew. After the selection, mission planners made the Descartes and Cayley formations, two geologic units of the lunar highlands, the primary sampling interest of the mission. It was these formations that the scientific community widely suspected were formed by lunar volcanism, but this hypothesis was proven incorrect by the composition of lunar samples from the mission. Training In addition to the usual Apollo spacecraft training, Young and Duke, along with backup commander Fred Haise, underwent an extensive geological training program that included several field trips to introduce them to concepts and techniques they would use in analyzing features and collecting samples on the lunar surface. During these trips, they visited and provided scientific descriptions of geologic features they were likely to encounter. The backup LMP, Mitchell, was unavailable during the early part of the training, occupied with tasks relating to Apollo 14, but by September 1971 had joined the geology field trips. Before that, Tony England (a member of the support crew and the lunar EVA CAPCOM) or one of the geologist trainers would train alongside Haise on geology field trips. Since Descartes was believed to be volcanic, a good deal of this training was geared towards volcanic rocks and features, but field trips were made to sites featuring other sorts of rock. As Young later commented, the non-volcanic training proved more useful, given that Descartes did not prove to be volcanic. In July 1971, they visited Sudbury, Ontario, Canada, for geology training exercises, the first time U.S. astronauts trained in Canada. The Apollo 14 landing crew had visited a site in West Germany; geologist Don Wilhelms related that unspecified incidents there had caused Slayton to rule out further European training trips. Geologists chose Sudbury because of a wide crater created about 1.8 billion years ago by a large meteorite. The Sudbury Basin shows evidence of shatter cone geology, familiarizing the Apollo crew with geologic evidence of a meteorite impact. During the training exercises the astronauts did not wear space suits, but carried radio equipment to converse with each other and England, practicing procedures they would use on the lunar surface. By the end of the training, the field trips had become major exercises, involving up to eight astronauts and dozens of support personnel, attracting coverage from the media. For the exercise at the Nevada Test Site, where the massive craters left by nuclear explosions simulated the large craters to be found on the Moon, all participants had to have security clearance and a listed next-of-kin, and an overflight by CMP Mattingly required special permission. In addition to the field geology training, Young and Duke also trained to use their EVA space suits, adapt to the reduced lunar gravity, collect samples, and drive the Lunar Roving Vehicle. The fact that they had been backups for Apollo 13, planned to be a landing mission, meant that they could spend about 40 percent of their time training for their surface operations. They also received survival training and prepared for technical aspects of the mission. The astronauts spent much time studying the lunar samples brought back by earlier missions, learning about the instruments to be carried on the mission, and hearing what the principal investigators in charge of those instruments expected to learn from Apollo 16. This training helped Young and Duke, while on the Moon, quickly realize that the expected volcanic rocks were not there, even though the geologists in Mission Control initially did not believe them. Much of the training—according to Young, 350 hours—was conducted with the crew wearing space suits, something that Young deemed vital, allowing the astronauts to know the limitations of the equipment in doing their assigned tasks. Mattingly also received training in recognizing geological features from orbit by flying over the field areas in an airplane, and trained to operate the Scientific Instrument Module from lunar orbit. Equipment Launch vehicle The launch vehicle which took Apollo 16 to the Moon was a Saturn V, designated as AS-511. This was the eleventh Saturn V to be flown and the ninth used on crewed missions. Apollo 16's Saturn V was almost identical to Apollo 15's. One change that was made was the restoration of four retrorockets to the S-IC first stage, meaning there would be a total of eight, as on Apollo 14 and earlier. The retrorockets were used to minimize the risk of collision between the jettisoned first stage and the Saturn V. These four retrorockets had been omitted from Apollo 15's Saturn V to save weight, but analysis of Apollo 15's flight showed that the S-IC came closer than expected after jettison, and it was feared that if there were only four rockets and one failed, there might be a collision. ALSEP and other surface equipment As on all lunar landing missions after Apollo 11, an Apollo Lunar Surface Experiments Package (ALSEP) was flown on Apollo 16. This was a suite of nuclear-powered experiments designed to keep functioning after the astronauts who set them up returned to Earth. Apollo 16's ALSEP consisted of a Passive Seismic Experiment (PSE, a seismometer), an Active Seismic Experiment (ASE), a Lunar Heat Flow Experiment (HFE), and a Lunar Surface Magnetometer (LSM). The ALSEP was powered by a SNAP-27 radioisotope thermoelectric generator, developed by the Atomic Energy Commission. The PSE added to the network of seismometers left by Apollo 12, 14 and 15. NASA intended to calibrate the Apollo 16 PSE by crashing the LM's ascent stage near it after the astronauts were done with it, an object of known mass and velocity impacting at a known location. However, NASA lost control of the ascent stage after jettison, and this did not occur. The ASE, designed to return data about the Moon's geologic structure, consisted of two groups of explosives: one, a line of "thumpers" were to be deployed attached to three geophones. The thumpers would be exploded during the ALSEP deployment. A second group was four mortars of different sizes, to be set off remotely once the astronauts had returned to Earth. Apollo 14 had also carried an ASE, though its mortars were never set off for fear of affecting other experiments. The HFE involved the drilling of two holes into the lunar surface and emplacement of thermometers which would measure how much heat was flowing from the lunar interior. This was the third attempt to emplace a HFE: the first flew on Apollo 13 and never reached the lunar surface, while on Apollo 15, problems with the drill meant the probes did not go as deep as planned. The Apollo 16 attempt would fail after Duke had successfully emplaced the first probe; Young, unable to see his feet in the bulky spacesuit, pulled out and severed the cable after it wrapped around his leg. NASA managers vetoed a repair attempt due to the amount of time it would take. A HFE flew, and was successfully deployed, on Apollo 17. The LSM was designed to measure the strength of the Moon's magnetic field, which is only a small fraction of Earth's. Additional data would be returned by the use of the Lunar Portable Magnetometer (LPM), to be carried on the lunar rover and activated at several geology stops. Scientists also hoped to learn from an Apollo 12 sample, to be briefly returned to the Moon on Apollo 16, from which "soft" magnetism had been removed, to see if it had been restored on its journey. Measurements after the mission found that "soft" magnetism had returned to the sample, although at a lower intensity than before. A Far Ultraviolet Camera/Spectrograph (UVC) was flown, the first astronomical observations taken from the Moon, seeking data on hydrogen sources in space without the masking effect of the Earth's corona. The instrument was placed in the LM's shadow and pointed at nebulae, other astronomical objects, the Earth itself, and any suspected volcanic vents seen on the lunar surface. The film was returned to Earth. When asked to summarize the results for a general audience, Dr. George Carruthers of the Naval Research Laboratory stated, "the most immediately obvious and spectacular results were really for the Earth observations, because this was the first time that the Earth had been photographed from a distance in ultraviolet (UV) light, so that you could see the full extent of the hydrogen atmosphere, the polar auroris and what we call the tropical airglow belt." Four panels mounted on the LM's descent stage comprised the Cosmic Ray Detector, designed to record cosmic ray and solar wind particles. Three of the panels were left uncovered during the voyage to the Moon, with the fourth uncovered by the crew early in the EVA. The panels would be bagged for return to Earth. The free-standing Solar Wind Composition Experiment flew on Apollo 16, as it had on each of the lunar landings, for deployment on the lunar surface and return to Earth. Platinum foil was added to the aluminum of the previous experiments, to minimize contamination. Particles and Fields Subsatellite PFS-2 The Apollo 16 Particles and Fields Subsatellite (PFS-2) was a small satellite released into lunar orbit from the service module. Its principal objective was to measure charged particles and magnetic fields all around the Moon as the Moon orbited Earth, similar to its sister spacecraft, PFS-1, released eight months earlier by Apollo 15. The two probes were intended to have similar orbits, ranging from above the lunar surface. Like the Apollo 15 subsatellite, PFS-2 was expected to have a lifetime of at least a year before its orbit decayed and it crashed onto the lunar surface. The decision to bring Apollo 16 home early after there were difficulties with the main engine meant that the spacecraft did not go to the orbit which had been planned for PFS-2. Instead, it was ejected into a lower-than-planned orbit and crashed into the Moon a month later on May 29, 1972, after circling the Moon 424 times. This brief lifetime was because lunar mascons were near to its orbital ground track and helped pull PFS-2 into the Moon. Mission events Elements of the spacecraft and launch vehicle began arriving at Kennedy Space Center in July 1970, and all had arrived by September 1971. Apollo 16 was originally scheduled to launch on March 17, 1972. One of the bladders for the CM's reaction control system burst during testing. This issue, in combination with concerns that one of the explosive cords that would jettison the LM from the CSM after the astronauts returned from the lunar surface would not work properly, and a problem with Duke's spacesuit, made it desirable to slip the launch to the next launch window. Thus, Apollo 16 was postponed to April 16. The launch vehicle stack, which had been rolled out from the Vehicle Assembly Building on December 13, 1971, was returned thereto on January 27, 1972. It was rolled out again to Launch Complex 39A on February 9. The official mission countdown began on Monday, April 10, 1972, at 8:30 am, six days before the launch. At this point the SaturnV rocket's three stages were powered up, and drinking water was pumped into the spacecraft. As the countdown began, the crew of Apollo 16 was participating in final training exercises in anticipation of a launch on April 16. The astronauts underwent their final preflight physical examination on April 11. The only holds in the countdown were the ones pre-planned in the schedule, and the weather was fair as the time for launch approached. Launch and outward journey The Apollo 16 mission launched from the Kennedy Space Center in Florida at 12:54 pm EST on April 16, 1972. The launch was nominal; the crew experienced vibration similar to that on previous missions. The first and second stages of the SaturnV (the S-IC and S-II) performed nominally; the spacecraft entered orbit around Earth just under 12 minutes after lift-off. After reaching orbit, the crew spent time adapting to the zero-gravity environment and preparing the spacecraft for trans-lunar injection (TLI), the burn of the third-stage rocket that would propel them to the Moon. In Earth orbit, the crew faced minor technical issues, including a potential problem with the environmental control system and the S-IVB third stage's attitude control system, but eventually resolved or compensated for them as they prepared to depart towards the Moon. After two orbits, the rocket's third stage reignited for just over five minutes, propelling the craft towards the Moon at about . Six minutes after the burn of the S-IVB, the command and service modules (CSM), containing the crew, separated from the rocket and traveled away from it before turning around and retrieving the lunar module from inside the expended rocket stage. The maneuver, performed by Mattingly and known as transposition, docking, and extraction, went smoothly. Following transposition and docking, the crew noticed the exterior surface of the lunar module was giving off particles from a spot where the LM's skin appeared torn or shredded; at one point, Duke estimated they were seeing about five to ten particles per second. Young and Duke entered the lunar module through the docking tunnel connecting it with the command module to inspect its systems, at which time they did not spot any major issues. Once on course towards the Moon, the crew put the spacecraft into a rotisserie "barbecue" mode in which the craft rotated along its long axis three times per hour to ensure even heat distribution about the spacecraft from the Sun. After further preparing the craft for the voyage, the crew began the first sleep period of the mission just under 15 hours after launch. By the time Mission Control issued the wake-up call to the crew for flight day two, the spacecraft was about away from the Earth, traveling at about . As it was not due to arrive in lunar orbit until flight day four, flight days two and three were largely preparatory, consisting of spacecraft maintenance and scientific research. On day two, the crew performed an electrophoresis experiment, also performed on Apollo 14, in which they attempted to demonstrate that electrophoretic separation in their near-weightless environment could be used to produce substances of greater purity than would be possible on Earth. Using two different sizes of polystyrene particles, one size colored red and one blue, separation of the two types via electrophoresis was achieved, though electro-osmosis in the experiment equipment prevented the clear separation of two particle bands. The remainder of day two included a two-second mid-course correction burn performed by the CSM's service propulsion system (SPS) engine to tweak the spacecraft's trajectory. Later in the day, the astronauts entered the lunar module for the second time to further inspect the landing craft's systems. The crew reported they had observed additional paint peeling from a portion of the LM's outer aluminum skin. Despite this, the crew discovered that the spacecraft's systems were performing nominally. Following the LM inspection, the crew reviewed checklists and procedures for the following days in anticipation of their arrival and the Lunar Orbit Insertion (LOI) burn. Command Module Pilot Mattingly reported "gimbal lock", meaning that the system to keep track of the craft's attitude was no longer accurate. Mattingly had to realign the guidance system using the Sun and Moon. At the end of day two, Apollo 16 was about away from Earth. When the astronauts were awakened for flight day three, the spacecraft was about away from the Earth. The velocity of the craft steadily decreased, as it had not yet reached the lunar sphere of gravitational influence. The early part of day three was largely housekeeping, spacecraft maintenance and exchanging status reports with Mission Control in Houston. The crew performed the Apollo light flash experiment, or ALFMED, to investigate "light flashes" that were seen by Apollo lunar astronauts when the spacecraft was dark, regardless of whether their eyes were open. This was thought to be caused by the penetration of the eye by cosmic ray particles. During the second half of the day, Young and Duke again entered the lunar module to power it up and check its systems, and perform housekeeping tasks in preparation for the lunar landing. The systems were found to be functioning as expected. Following this, the crew donned their space suits and rehearsed procedures that would be used on landing day. Just before the end of flight day three at 59 hours, 19 minutes, 45 seconds after liftoff, while from the Earth and from the Moon, the spacecraft's velocity began increasing as it accelerated towards the Moon after entering the lunar sphere of influence. After waking up on flight day four, the crew began preparations for the LOI maneuver that would brake them into orbit. At an altitude of the scientific instrument module (SIM) bay cover was jettisoned. At just over 74 hours into the mission, the spacecraft passed behind the Moon, temporarily losing contact with Mission Control. While over the far side, the SPS burned for 6minutes and 15 seconds, braking the spacecraft into an orbit with a low point (pericynthion) of 58.3 and a high point (apocynthion) of 170.4 nautical miles (108.0 and 315.6 km, respectively). After entering lunar orbit, the crew began preparations for the Descent Orbit Insertion (DOI) maneuver to further modify the spacecraft's orbital trajectory. The maneuver was successful, decreasing the craft's pericynthion to . The remainder of flight day four was spent making observations and preparing for activation of the lunar module, undocking, and landing the following day. Lunar surface The crew continued preparing for lunar module activation and undocking shortly after waking up to begin flight day five. The boom that extended the mass spectrometer in the SIM bay was stuck, semi-deployed. It was decided that Young and Duke would visually inspect the boom after undocking the LM from the CSM. They entered the LM for activation and checkout of the spacecraft's systems. Despite entering the LM 40 minutes ahead of schedule, they completed preparations only 10 minutes early due to numerous delays in the process. With the preparations finished, they undocked 96 hours, 13 minutes, 31 seconds into the mission. For the rest of the two crafts' passes over the near side of the Moon, Mattingly prepared to shift Casper to a higher, near-circular orbit, while Young and Duke prepared Orion for the descent to the lunar surface. At this point, during tests of the CSM's steerable rocket engine in preparation for the burn to modify the craft's orbit, Mattingly detected oscillations in the SPS engine's backup gimbal system. According to mission rules, under such circumstances, Orion was to re-dock with Casper, in case Mission Control decided to abort the landing and use the lunar module's engines for the return trip to Earth. Instead, the two craft kept station, maintaining positions close to each other. After several hours of analysis, mission controllers determined that the malfunction could be worked around, and Young and Duke could proceed with the landing. Powered descent to the lunar surface began about six hours behind schedule. Because of the delay, Young and Duke began their descent to the surface at an altitude higher than that of any previous mission, at . After descending to an altitude of about , Young was able to view the landing site in its entirety. Throttle-down of the LM's landing engine occurred on time, and the spacecraft tilted forward to its landing orientation at an altitude of . The LM landed north and west of the planned landing site at 104 hours, 29 minutes, and 35 seconds into the mission, at 2:23:35 UTC on April 21 (8:23:35 pm on April 20 in Houston). The availability of the Lunar Roving Vehicle rendered their distance from the targeted point trivial. After landing, Young and Duke began powering down some of the LM's systems to conserve battery power. Upon completing their initial procedures, the pair configured Orion for their three-day stay on the lunar surface, removed their space suits and took initial geological observations of the immediate landing site. They then settled down for their first meal on the surface. After eating, they configured the cabin for sleep. The landing delay caused by the malfunction in the CSM's main engine necessitated significant modifications to the mission schedule. Apollo 16 would spend one less day in lunar orbit after surface exploration had been completed to afford the crew ample margins in the event of further problems. In order to improve Young's and Duke's sleep schedule, the third and final moonwalk of the mission was trimmed from seven hours to five. First moonwalk After waking up on April 21, Young and Duke ate breakfast and began preparations for the first extravehicular activity (EVA), or moonwalk. After the pair donned and pressurized their space suits and depressurized the lunar module cabin, Young climbed out onto the "porch" of the LM, a small platform above the ladder. Duke handed Young a jettison bag full of trash to dispose of on the surface. Young then lowered the equipment transfer bag (ETB), containing equipment for use during the EVA, to the surface. Young descended the ladder and, upon setting foot on the lunar surface, became the ninth human to walk on the Moon. Upon stepping onto the surface, Young expressed his sentiments about being there: "There you are: Mysterious and unknown Descartes. Highland plains. Apollo 16 is gonna change your image. I'm sure glad they got ol' Brer Rabbit, here, back in the briar patch where he belongs." Duke soon descended the ladder and joined Young on the surface, becoming the tenth person to walk on the Moon. Duke was then aged 36; no younger human has ever walked on the lunar surface. Duke expressed his excitement, stating to CAPCOM Anthony England: "Fantastic! Oh, that first foot on the lunar surface is super, Tony!" The pair's first task of the moonwalk was to offload the Lunar Roving Vehicle, the Far Ultraviolet Camera/Spectrograph, and other equipment. This was done without problems. On first driving the lunar rover, Young discovered that the rear steering was not working. He alerted Mission Control to the problem before setting up the television camera, after which Duke erected the United States flag. During lunar surface operations, Commander Young always drove the rover, while Lunar Module Pilot Duke assisted with navigation; this was a division of responsibilities used consistently throughout Apollo's J missions. The day's next task was to deploy the ALSEP; while they were parking the lunar rover, on which the TV camera was mounted, to observe the deployment, the rear steering began functioning. After ALSEP deployment, they collected samples in the vicinity. About four hours after the beginning of EVA-1, they mounted the lunar rover and drove to the first geologic stop, Plum Crater, a crater on the rim of Flag Crater, about across. There, at a distance of from the LM, they sampled material in the vicinity, which scientists believed had penetrated through the upper regolith layer to the underlying Cayley Formation. It was there that Duke retrieved, at the request of Mission Control, the largest rock returned by an Apollo mission, a breccia nicknamed Big Muley after mission geology principal investigator William R. Muehlberger. The next stop of the day was Buster Crater, a small crater located north of the larger Spook Crater, about from the LM. There, Duke took pictures of Stone Mountain and South Ray Crater, while Young deployed the LPM. By this point, scientists were beginning to reconsider their pre-mission hypothesis that Descartes had been the setting of ancient volcanic activity, as the two astronauts had yet to find any volcanic material. Following their stop at Buster, Young did a "Grand Prix" demonstration drive of the lunar rover, which Duke filmed with a 16 mm movie camera. This had been attempted on Apollo 15, but the camera had malfunctioned. After completing more tasks at the ALSEP, they returned to the LM to close out the moonwalk. They reentered the LM 7hours, 6minutes, and 56 seconds after the start of the EVA. Once inside, they pressurized the LM cabin, went through a half-hour debriefing with scientists in Mission Control, and configured the cabin for the sleep period. Second moonwalk Waking up three and a half minutes earlier than planned, they discussed the day's timeline of events with Houston. The second lunar excursion's primary objective was to visit Stone Mountain to climb up the slope of about 20 degrees to reach a cluster of five craters known as "Cinco craters". They drove there in the LRV, traveling from the LM. At above the valley floor, the pair were at the highest elevation above the LM of any Apollo mission. They marveled at the view (including South Ray) from the side of Stone Mountain, which Duke described as "spectacular", then gathered samples in the vicinity. After spending 54 minutes on the slope, they climbed aboard the lunar rover en route to the day's second stop, dubbed Station 5, a crater across. There, they hoped to find Descartes material that had not been contaminated by ejecta from South Ray Crater, a large crater south of the landing site. The samples they collected there, despite still uncertain origin, are according to geologist Wilhelms, "a reasonable bet to be Descartes". The next stop, Station 6, was a blocky crater, where the astronauts believed they could sample the Cayley Formation as evidenced by the firmer soil found there. Bypassing station seven to save time, they arrived at Station 8 on the lower flank of Stone Mountain, where they sampled material on a ray from South Ray crater for about an hour. There, they collected black and white breccias and smaller, crystalline rocks rich in plagioclase. At Station 9, an area known as the "Vacant Lot", which was believed to be free of ejecta from South Ray, they spent about 40 minutes gathering samples. Twenty-five minutes after departing the Vacant Lot, they arrived at the final stop of the day, halfway between the ALSEP site and the LM. There, they dug a double core and conducted several penetrometer tests along a line stretching east of the ALSEP. At the request of Young and Duke, the moonwalk was extended by ten minutes. After returning to the LM to wrap up the second lunar excursion, they climbed back inside the landing craft's cabin, sealing and pressurizing the interior after 7hours, 23 minutes, and 26 seconds of EVA time, breaking a record that had been set on Apollo 15. After eating a meal and proceeding with a debriefing on the day's activities with Mission Control, they reconfigured the LM cabin and prepared for the sleep period. Third moonwalk Flight day seven was their third and final day on the lunar surface, returning to orbit to rejoin Mattingly in the CSM following the day's moonwalk. During the third and final lunar excursion, they were to explore North Ray crater, the largest of any of the craters any Apollo expedition had visited. After exiting Orion, the pair drove to North Ray crater. The drive was smoother than that of the previous day, as the craters were shallower and boulders were less abundant north of the immediate landing site. After passing Palmetto crater, boulders gradually became larger and more abundant as they approached North Ray in the lunar rover. Upon arriving at the rim of North Ray crater, they were away from the LM. After their arrival, the duo took photographs of the wide and deep crater. They visited a large boulder, taller than a four-story building, which became known as 'House Rock'. Samples obtained from this boulder delivered the final blow to the pre-mission volcanic hypothesis, proving it incorrect. House Rock had numerous bullet hole-like marks where micrometeoroids from space had impacted the rock. About 1hour and 22 minutes after arriving at the North Ray crater, they departed for Station 13, a large boulder field about from North Ray. On the way, they set a lunar speed record, traveling at an estimated downhill. They arrived at a high boulder, which they called "Shadow Rock". Here, they sampled permanently shadowed soil. During this time, Mattingly was preparing the CSM in anticipation of their return approximately six hours later. After three hours and six minutes, they returned to the LM, where they completed several experiments and unloaded the rover. A short distance from the LM, Duke placed a photograph of his family and an Air Force commemorative medallion on the surface. Young drove the rover to a point about east of the LM, known as the 'VIP site,' so its television camera, controlled remotely by Mission Control, could observe Apollo 16's liftoff from the Moon. They then reentered the LM after a 5-hour and 40-minute final excursion. After pressurizing the LM cabin, the crew began preparing to return to lunar orbit. Solo activities After Orion was cleared for the landing attempt, Casper maneuvered away, and Mattingly performed a burn that took his spacecraft to an orbit of in preparation for his scientific work. The SM carried a suite of scientific instruments in its SIM bay, similar to those carried on Apollo 15. Mattingly had compiled a busy schedule operating the various SIM bay instruments, one that became even busier once Houston decided to bring Apollo 16 home a day early, as the flight directors sought to make up for lost time. His work was hampered by various malfunctions: when the Panoramic Camera was turned on, it appeared to take so much power from one of the CSM's electrical systems, that it initiated the spacecraft Master Alarm. It was immediately shut off, though later analysis indicated that the drain might have been from the spacecraft's heaters, which came on at the same time. Its work was also hampered by the delay in the beginning of Casper'''s orbital scientific work and the early return to Earth, and by a malfunction resulting in the overexposure of many of the photographs. Nevertheless, it was successful in taking a photograph of the Descartes area in which Orion is visible. The Mass Spectrometer boom did not fully retract following its initial extension, as had happened on Apollo 15, though it retracted far enough to allow the SPS engine to be fired safely when Casper maneuvered away from Orion before the LM began its Moon landing attempt. Although the Mass Spectrometer was able to operate effectively, it stuck near its fully deployed position prior to the burn that preceded rendezvous, and had to be jettisoned. Scientists had hoped to supplement the lunar data gained with more on the trans-earth coast, but Apollo 15 data could be used instead. The Mapping Camera also did not function perfectly; later analysis found it to have problems with its glare shield. The changes to the flight plan meant that some areas of the lunar surface that were supposed to be photographed could not be; also, a number of images were overexposed. The Laser Altimeter, designed to accurately measure the spacecraft altitude, slowly lost accuracy due to reduced power, and finally failed just before it was due to be used for the last time. Return to Earth Eight minutes before the planned departure from the lunar surface, CAPCOM James Irwin notified Young and Duke from Mission Control that they were go for liftoff. Two minutes before launch, they activated the "Master Arm" switch and then the "Abort Stage" button, causing small explosive charges to sever the ascent stage from the descent stage, with cables connecting the two severed by a guillotine-like mechanism. At the pre-programmed moment, there was liftoff and the ascent stage blasted away from the Moon, as the camera aboard the LRV followed the first moments of the flight. Six minutes after liftoff, at a speed of about , Young and Duke reached lunar orbit. Young and Duke successfully rendezvoused and re-docked with Mattingly in the CSM. To minimize the transfer of lunar dust from the LM cabin into the CSM, Young and Duke cleaned the cabin before opening the hatch separating the two spacecraft. After opening the hatch and reuniting with Mattingly, the crew transferred the samples Young and Duke had collected on the surface into the CSM for transfer to Earth. After transfers were completed, the crew would sleep before jettisoning the empty lunar module ascent stage the next day, when it was to be crashed intentionally into the lunar surface in order to calibrate the seismometer Young and Duke had left on the surface. The next day, after final checks were completed, the expended LM ascent stage was jettisoned. Likely because of a failure by the crew to activate a certain switch in the LM before sealing it off, it tumbled after separation. NASA could not control it, and it did not execute the rocket burn necessary for the craft's intentional de-orbit. The ascent stage eventually crashed into the lunar surface nearly a year after the mission. The crew's next task, after jettisoning the lunar module ascent stage, was to release a subsatellite into lunar orbit from the CSM's scientific instrument bay. The burn to alter the CSM's orbit to that desired for the subsatellite had been cancelled; as a result, the subsatellite lasted just over a month in orbit, far less than its anticipated one year. Just under five hours after the subsatellite release, on the CSM's 65th orbit around the Moon, its service propulsion system main engine was reignited to propel the craft on a trajectory that would return it to Earth. The SPS engine performed the burn flawlessly despite the malfunction that had delayed their landing several days previously. During the return to Earth, Mattingly performed an 83-minute EVA to retrieve film cassettes from the cameras in the SIM bay, with assistance from Duke who remained at the command module's hatch. At approximately from Earth, it was the second "deep space" EVA in history, performed at great distance from any planetary body. , it remains one of only three such EVAs, all performed during Apollo's J-missions under similar circumstances. During the EVA, Mattingly set up a biological experiment, the Microbial Ecology Evaluation Device (MEED), an experiment unique to Apollo 16, to evaluate the response of microbes to the space environment. The crew carried out various housekeeping and maintenance tasks aboard the spacecraft and ate a meal before concluding the day. The penultimate day of the flight was largely spent performing experiments, aside from a twenty-minute press conference during the second half of the day. During the press conference, the astronauts answered questions pertaining to several technical and non-technical aspects of the mission prepared and listed by priority at the Manned Spacecraft Center in Houston by journalists covering the flight. In addition to numerous housekeeping tasks, the astronauts prepared the spacecraft for its atmospheric reentry the next day. At the end of the crew's final full day in space, the spacecraft was approximately from Earth and closing at a rate of about . When the wake-up call was issued to the crew for their final day in space by CAPCOM England, the CSM was about from Earth, traveling just over . Just over three hours before splashdown in the Pacific Ocean, the crew performed a final course correction burn, using the spacecraft's thrusters to change their velocity by . Approximately ten minutes before reentry into Earth's atmosphere, the cone-shaped command module containing the three crewmembers separated from the service module, which would burn up during reentry. At 265 hours and 37 minutes into the mission, at a velocity of about , Apollo 16 began atmospheric reentry. At its maximum, the temperature of the heat shield was between . After successful parachute deployment and less than 14 minutes after reentry began, the command module splashed down in the Pacific Ocean southeast of the island of Kiritimati 265 hours, 51 minutes, 5seconds after liftoff. The spacecraft and its crew was retrieved by the aircraft carrier . The astronauts were safely aboard the Ticonderoga 37 minutes after splashdown. Scientific results and aftermath Scientific analysis of the rocks brought back to Earth confirmed that the Cayley Formation was not volcanic in nature. There was less certainty regarding the Descartes Formation, as it was not clear which if any of the rocks came from there. There was no evidence that showed that Stone Mountain was volcanic. One reason why Descartes had been selected was that it was visually different from previous Apollo landing sites, but rocks from there proved to be closely related to those from the Fra Mauro Formation, Apollo 14's landing site. Geologists realized that they had been so certain that Cayley was volcanic, they had not been open to dissenting views, and that they had been over-reliant on analogues from Earth, a flawed model because the Moon does not share much of the Earth's geologic history. They concluded that there are few if any volcanic mountains on the Moon. These conclusions were informed by observations from Mattingly, the first CMP to use binoculars in his observations, who had seen that from the perspective of lunar orbit, there was nothing distinctive about the Descartes Formation—it fit right in with the Mare Imbrium structure. Other results gained from Apollo 16 included the discovery of two new auroral belts around Earth. After the mission, Young and Duke served as backups for Apollo 17, and Duke retired from NASA in December 1975. Young and Mattingly both flew the Space Shuttle: Young, who served as Chief Astronaut from 1974 to 1987, commanded the first Space Shuttle mission, STS-1 in 1981, as well as STS-9 in 1983, on the latter mission becoming the first person to journey into space six times. He retired from NASA in 2004. Mattingly also twice commanded Shuttle missions, STS-4 (1982) and STS-51-C (1985), before retiring from NASA in 1985. Locations of spacecraft and other equipment The Ticonderoga delivered the Apollo 16 command module to the North Island Naval Air Station, near San Diego, California, on Friday, May 5, 1972. On Monday, May 8, ground service equipment being used to empty the residual toxic reaction control system fuel in the command module tanks exploded in a Naval Air Station hangar. Forty-six people were sent to the hospital for 24 to 48 hours' observation, most suffering from inhalation of toxic fumes. Most seriously injured was a technician who suffered a fractured kneecap when a cart overturned on him. A hole was blown in the hangar roof 250 feet above; about 40 windows in the hangar were shattered. The command module suffered a three-inch gash in one panel. The Apollo 16 command module Casper'' is on display at the U.S. Space & Rocket Center in Huntsville, Alabama, following a transfer of ownership from NASA to the Smithsonian in November 1973. The lunar module ascent stage separated from the CSM on April 24, 1972, but NASA lost control of it. It orbited the Moon for about a year. Its impact site remains unknown, though research published in 2023 suggests an impact date of May 29, 1972 (the same as for the subsattelite) and an impact location of 9.99° N, 104.26° E. The S-IVB was deliberately crashed into the Moon. However, due to a communication failure before impact the exact location was unknown until January 2016, when it was discovered within Mare Insularum by the Lunar Reconnaissance Orbiter, approximately southwest of Copernicus Crater. Duke left two items on the Moon, both of which he photographed while there. One is a plastic-encased photo portrait of his family. The reverse of the photo is signed by Duke's family and bears this message: "This is the family of Astronaut Duke from Planet Earth. Landed on the Moon, April 1972." The other item was a commemorative medal issued by the United States Air Force, which was celebrating its 25th anniversary in 1972. He took two medals, leaving one on the Moon and donating the other to the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Ohio. In 2006, shortly after Hurricane Ernesto affected Bath, North Carolina, eleven-year-old Kevin Schanze discovered a piece of metal debris on the ground near his beach home. Schanze and a friend discovered a "stamp" on the flat metal sheet, which upon further inspection turned out to be a faded copy of the Apollo 16 mission insignia. NASA later confirmed the object to be a piece of the first stage of the SaturnV that had launched Apollo 16 into space. In July 2011, after returning the piece of debris at NASA's request, 16-year-old Schanze was given an all-access tour of the Kennedy Space Center and VIP seating for the launch of STS-135, the final mission of the Space Shuttle program. See also List of artificial objects on the Moon List of spacewalks and moonwalks 1965–1999 References Bibliography External links Apollo 16 Traverses, Lunar Photomap 78D2S2(25) On the Moon with Apollo 16: A guidebook to the Descartes Region by Gene Simmons, NASA, EP-95, 1972 Apollo 16: "Nothing so hidden..." (Part 1) – NASA film on the Apollo 16 mission at the Internet Archive Apollo 16: "Nothing so hidden..." (Part 2) – NASA film on the Apollo 16 mission at the Internet Archive Apollo Lunar Surface VR Panoramas – QTVR panoramas at moonpans.com Apollo 16 Science Experiments at the Lunar and Planetary Institute Audio recording of Apollo 16 landing as recorded at the Honeysuckle Creek Tracking Station Interview with the Apollo 16 Astronauts (28 June 1972) from the Commonwealth Club of California Records at the Hoover Institution Archives "Apollo 16: Driving on the Moon" – Apollo 16 film footage of lunar rover at the Astronomy Picture of the Day, 29 January 2013 Astronaut's Eye View of Apollo 16 Site, from LROC Apollo program missions Crewed missions to the Moon Charles Duke Ken Mattingly John Young (astronaut) 1972 on the Moon 1972 in the United States April 1972 events Extravehicular activity Lunar rovers Sample return missions Soft landings on the Moon Spacecraft launched in 1972 Spacecraft which reentered in 1972 Spacecraft launched by Saturn rockets

1971

https://en.wikipedia.org/wiki/Apollo%2017

Apollo 17

Apollo 17 (December 7–19, 1972) was the eleventh and final mission of NASA's Apollo program, the sixth and most recent time humans have set foot on the Moon or traveled beyond low Earth orbit. Commander Gene Cernan and Lunar Module Pilot Harrison Schmitt walked on the Moon, while Command Module Pilot Ronald Evans orbited above. Schmitt was the only professional geologist to land on the Moon; he was selected in place of Joe Engle, as NASA had been under pressure to send a scientist to the Moon. The mission's heavy emphasis on science meant the inclusion of a number of new experiments, including a biological experiment containing five mice that was carried in the command module. Mission planners had two primary goals in deciding on the landing site: to sample lunar highland material older than that at Mare Imbrium and to investigate the possibility of relatively recent volcanic activity. They therefore selected Taurus–Littrow, where formations that had been viewed and pictured from orbit were thought to be volcanic in nature. Since all three crew members had backed up previous Apollo lunar missions, they were familiar with the Apollo spacecraft and had more time for geology training. Launched at 12:33 a.m. Eastern Standard Time (EST) on December 7, 1972, following the only launch-pad delay in the course of the whole Apollo program that was caused by a hardware problem, Apollo 17 was a "J-type" mission that included three days on the lunar surface, expanded scientific capability, and the use of the third Lunar Roving Vehicle (LRV). Cernan and Schmitt landed in the Taurus–Littrow valley, completed three moonwalks, took lunar samples and deployed scientific instruments. Orange soil was discovered at Shorty crater; it proved to be volcanic in origin, although from early in the Moon's history. Evans remained in lunar orbit in the command and service module (CSM), taking scientific measurements and photographs. The spacecraft returned to Earth on December 19. The mission broke several records for crewed spaceflight, including the longest crewed lunar landing mission (12 days, 14 hours), greatest distance from a spacecraft during an extravehicular activity of any type (7.6 kilometers or 4.7 miles), longest total duration of lunar-surface extravehicular activities (22 hours, 4 minutes), largest lunar-sample return (approximately 115 kg or 254 lb), longest time in lunar orbit (6 days, 4 hours), and greatest number of lunar orbits (75). Crew and key Mission Control personnel In 1969, NASA announced that the backup crew of Apollo 14 would be Gene Cernan, Ronald Evans, and former X-15 pilot Joe Engle. This put them in line to be the prime crew of Apollo 17, because the Apollo program's crew rotation generally meant that a backup crew would fly as prime crew three missions later. Harrison Schmitt, who was a professional geologist as well as an astronaut, had served on the backup crew of Apollo 15, and thus, because of the rotation, would have been due to fly as lunar module pilot on Apollo 18. In September 1970, the plan to launch Apollo 18 was cancelled. The scientific community pressed NASA to assign a geologist, rather than a pilot with non-professional geological training, to an Apollo landing. NASA subsequently assigned Schmitt to Apollo 17 as the lunar module pilot. After that, NASA’s director of flight crew operations, Deke Slayton, was left with the question of who would fill the two other Apollo 17 slots: the rest of the Apollo 15 backup crew (Dick Gordon and Vance Brand), or Cernan and Evans from the Apollo 14 backup crew. Slayton ultimately chose Cernan and Evans. Support at NASA for assigning Cernan was not unanimous. Cernan had crashed a Bell 47G helicopter into the Indian River near Cape Kennedy during a training exercise in January 1971; the accident was later attributed to pilot error, as Cernan had misjudged his altitude before crashing into the water. Jim McDivitt, who was manager of the Apollo Spacecraft Program Office at the time, objected to Cernan's selection because of this accident, but Slayton dismissed the concern. After Cernan was offered command of the mission, he advocated for Engle to fly with him on the mission, but it was made clear to him that Schmitt would be assigned instead, with or without Cernan, so he acquiesced. The prime crew of Apollo 17 was publicly announced on August 13, 1971. When assigned to Apollo 17, Cernan was a 38-year-old captain in the United States Navy; he had been selected in the third group of astronauts in 1963, and flown as pilot of Gemini 9A in 1966 and as lunar module pilot of Apollo 10 in 1969 before he served on Apollo 14's backup crew. Evans, 39 years old when assigned to Apollo 17, had been selected as part of the fifth group of astronauts in 1966, and had been a lieutenant commander in the United States Navy. Schmitt, a civilian, was 37 years old when assigned Apollo 17, had a doctorate in geology from Harvard University, and had been selected in the fourth group of astronauts in 1965. Both Evans and Schmitt were making their first spaceflights. For the backup crews of Apollo 16 and 17, the final Apollo lunar missions, NASA selected astronauts who had already flown Apollo lunar missions, to take advantage of their experience, and avoid investing time and money in training rookies who would be unlikely to ever fly an Apollo mission. The original backup crew for Apollo 17, announced at the same time as the prime crew, was the crew of Apollo 15: David Scott as commander, Alfred Worden as CMP and James Irwin as LMP, but in May 1972 they were removed from the backup crew because of their roles in the Apollo 15 postal covers incident. They were replaced with the landing crew of Apollo 16: John W. Young as backup crew commander, Charles Duke as LMP, and Apollo 14's CMP, Stuart Roosa. Originally, Apollo 16's CMP, Ken Mattingly, was to be assigned along with his crewmates, but he declined so he could spend more time with his family, his son having just been born, and instead took an assignment to the Space Shuttle program. Roosa had also served as backup CMP for Apollo 16. For the Apollo program, in addition to the prime and backup crews that had been used in the Mercury and Gemini programs, NASA assigned a third crew of astronauts, known as the support crew. Their role was to provide any assistance in preparing for the missions that the missions director assigned then. Preparations took place in meetings at facilities across the US and sometimes needed a member of the flight crew to attend them. Because McDivitt was concerned that problems could be created if a prime or backup crew member was unable to attend a meeting, Slayton created the support crews to ensure that someone would be able to attend in their stead. Usually low in seniority, they also assembled the mission's rules, flight plan and checklists, and kept them updated; for Apollo 17, they were Robert F. Overmyer, Robert A. Parker and C. Gordon Fullerton. Flight directors were Gerry Griffin, first shift, Gene Kranz and Neil B. Hutchinson, second shift, and Pete Frank and Charles R. Lewis, third shift. According to Kranz, flight directors during the program Apollo had a one-sentence job description, "The flight director may take any actions necessary for crew safety and mission success." Capsule communicators (CAPCOMs) were Fullerton, Parker, Young, Duke, Mattingly, Roosa, Alan Shepard and Joseph P. Allen. Mission insignia and call signs The insignia's most prominent feature is an image of the Greek sun god Apollo backdropped by a rendering of an American eagle, the red bars on the eagle mirroring those on the U.S. flag. Three white stars above the red bars represent the three crewmembers of the mission. The background includes the Moon, the planet Saturn, and a galaxy or nebula. The wing of the eagle partially overlays the Moon, suggesting humanity's established presence there. The insignia includes, along with the colors of the U.S. flag (red, white, and blue), the color gold, representative of a "golden age" of spaceflight that was to begin with Apollo 17. The image of Apollo in the mission insignia is a rendering of the Apollo Belvedere sculpture in the Vatican Museums. It looks forward into the future, towards the celestial objects shown in the insignia beyond the Moon. These represent humanity's goals, and the image symbolizes human intelligence, wisdom and ambition. The insignia was designed by artist Robert McCall, based on ideas from the crew. In deciding the call signs for the command module (CM) and lunar module (LM), the crew wished to pay tribute to the American public for their support of the Apollo program, and to the mission, and wanted names with a tradition within American history. The CM was given the call sign "America". According to Cernan, this evoked the 19th century sailing ships which were given that name, and was a thank-you to the people of the United States. The crew selected the name "Challenger" for the LM in lieu of an alternative, "Heritage". Cernan stated that the selected name "just seemed to describe more of what the future for America really held, and that was a challenge". After Schmitt stepped onto the Moon from Challenger, he stated, "I think the next generation ought to accept this as a challenge. Let's see them leave footprints like these." Planning and training Scheduling and landing site selection Prior to the cancellation of Apollo 18 through 20, Apollo 17 was slated to launch in September 1971 as part of NASA's tentative launch schedule set forth in 1969. The in-flight abort of Apollo 13 and the resulting modifications to the Apollo spacecraft delayed subsequent missions. Following the cancellation of Apollo 20 in early 1970, NASA decided there would be no more than two Apollo missions per year. Part of the reason Apollo 17 was scheduled for December 1972 was to make it fall after the presidential election in November, ensuring that if there was a disaster, it would have no effect on President Richard Nixon's re-election campaign. Nixon had been deeply concerned about the Apollo 13 astronauts, and, fearing another mission in crisis as he ran for re-election, initially decided to omit the funds for Apollo 17 from the budget; he was persuaded to accept a December 1972 date for the mission. Like Apollo 15 and 16, Apollo 17 was slated to be a "J-mission", an Apollo mission type that featured lunar surface stays of three days, higher scientific capability, and the usage of the Lunar Roving Vehicle. Since Apollo 17 was to be the final lunar landing of the Apollo program, high-priority landing sites that had not been visited previously were given consideration for potential exploration. Some sites were rejected at earlier stages. For instance, a landing in the crater Copernicus was rejected because Apollo 12 had already obtained samples from that impact, and three other Apollo expeditions had already visited the vicinity of Mare Imbrium, near the rim of which Copernicus is located. The lunar highlands near the crater Tycho were rejected because of the rough terrain that the astronauts would encounter there. A site on the lunar far side in the crater Tsiolkovskiy was rejected due to technical considerations and the operational costs of maintaining communication with Earth during surface operations. Lastly, a landing in a region southwest of Mare Crisium was rejected on the grounds that a Soviet spacecraft could easily access the site and retrieve samples; Luna 20 ultimately did so shortly after the Apollo 17 site selection was made. Schmitt advocated for a landing on the far side of the Moon until told by Director of Flight Operations Christopher C. Kraft that it would not happen as NASA lacked the funds for the necessary communications satellites. The three sites that made the final consideration for Apollo 17 were Alphonsus crater, Gassendi crater, and the Taurus–Littrow valley. In making the final landing site decision, mission planners considered the primary objectives for Apollo 17: obtaining old highlands material a substantial distance from Mare Imbrium, sampling material from young volcanic activity (i.e., less than three billion years), and having minimal ground overlap with the orbital ground tracks of Apollo 15 and Apollo 16 to maximize the amount of new data obtained. A significant reason for the selection of Taurus–Littrow was that Apollo 15's CMP, Al Worden, had overflown the site and observed features he described as likely volcanic in nature. Gassendi was eliminated because NASA felt that its central peak would be difficult to reach due to the roughness of the local terrain, and, though Alphonsus might be easier operationally than Taurus–Littrow, it was of lesser scientific interest. At Taurus–Littrow, it was believed that the crew would be able to obtain samples of old highland material from the remnants of a landslide event that occurred on the south wall of the valley and the possibility of relatively young, explosive volcanic activity in the area. Although the valley is similar to the landing site of Apollo 15 in that it is on the border of a lunar mare, the advantages of Taurus–Littrow were believed to outweigh the drawbacks. The Apollo Site Selection Board, a committee of NASA personnel and scientists charged with setting out scientific objectives of the Apollo landing missions and selecting landing sites for them, unanimously recommended Taurus–Littrow at its final meeting in February 1972. Upon that recommendation, NASA selected Taurus–Littrow as the landing site for Apollo 17. Training As with previous lunar landings, the Apollo 17 astronauts undertook an extensive training program that included learning to collect samples on the surface, usage of the spacesuits, navigation in the Lunar Roving Vehicle, field geology training, survival training, splashdown and recovery training, and equipment training. The geology field trips were conducted as much as possible as if the astronauts were on the Moon: they would be provided with aerial images and maps, and briefed on features of the site and a suggested routing. The following day, they would follow the route, and have tasks and observations to be done at each of the stops. The geology field trips began with one to Big Bend National Park in Texas in October 1971. The early ones were not specifically tailored to prepare the astronauts for Taurus–Littrow, which was not selected until February 1972, but by June, the astronauts were going on field trips to sites specifically selected to prepare for Apollo 17's landing site. Both Cernan and Schmitt had served on backup crews for Apollo landing missions, and were familiar with many of the procedures. Their trainers, such as Gordon Swann, feared that Cernan would defer to Schmitt as a professional geologist on matters within his field. Cernan also had to adjust for the loss of Engle, with whom he had trained for Apollo 14. In spite of these issues, Cernan and Schmitt worked well together as a team, and Cernan became adept at describing what he was seeing on geology field trips, and working independently of Schmitt when necessary. The landing crew aimed for a division of labor so that, when they arrived in a new area, Cernan would perform tasks such as adjusting the antenna on the Lunar Roving Vehicle so as to transmit to Earth while Schmitt gave a report on the geological aspects of the site. The scientists in the geology "backroom" relied on Schmitt's reports to adjust the tasks planned for that site, which would be transmitted to the CapCom and then to Cernan and Schmitt. According to William R. Muehlberger, one of the scientists who trained the astronauts, "In effect [Schmitt] was running the mission from the Moon. But we set it up this way. All of those within the geological world certainly knew it, and I had a sneaking hunch that the top brass knew it too, but this is a practical way out, and they didn't object." Also participating in some of the geology field trips were the commander and lunar module pilot of the backup crew. The initial field trips took place before the Apollo 15 astronauts were assigned as the backup crew for Apollo 17 in February 1972. Either one or both of Scott and Irwin of Apollo 15 took part in four field trips, though both were present together for only two of them. After they were removed from the backup crew, the new backup commander and LMP, Young and Duke, took part in the final four field trips. On field trips, the backup crew would follow half an hour after the prime crew, performing identical tasks, and have their own simulated CapCom and Mission Control guiding them. The Apollo 17 astronauts had fourteen field trips—the Apollo 11 crew had only one. Evans did not go on the geology field trips, having his own set of trainers—by this time, geology training for the CMP was well-established. He would fly with a NASA geologist/pilot, Dick Laidley, over geologic features, with part of the exercise conducted at , and part at to . The higher altitude was equivalent to what could be seen from the planned lunar orbit of about 60 nmi with binoculars. Evans would be briefed for several hours before each exercise, and given study guides; afterwards, there would be debriefing and evaluation. Evans was trained in lunar geology by Farouk El-Baz late in the training cycle; this continued until close to launch. The CMP was given information regarding the lunar features he would overfly in the CSM and which he was expected to photograph. Mission hardware and experiments Spacecraft and launch vehicle The Apollo 17 spacecraft comprised CSM-114 (consisting of Command Module 114 (CM-114) and Service Module 114 (SM-114)); Lunar Module 12 (LM-12); a Spacecraft-Lunar Module Adapter (SLA) numbered SLA-21; and a Launch Escape System (LES). The LES contained a rocket motor that would propel the CM to safety in the event of an aborted mission in the moments after launch, while the SLA housed the LM during the launch and early part of the flight. The LES was jettisoned after the launch vehicle ascended to the point that it was not needed, while the SLA was left atop the S-IVB third stage of the rocket after the CSM and LM separated from it. The launch vehicle, SA-512, was one of fifteen Saturn V rockets built, and was the twelfth to fly. With a weight at launch of ( of which was attributable to the spacecraft), Apollo 17's vehicle was slightly lighter than Apollo 16, but heavier than every other crewed Apollo mission. Preparation and assembly The first piece of the launch vehicle to arrive at Kennedy Space Center was the S-II second stage, on October 27, 1970; it was followed by the S-IVB on December 21; the S-IC first stage did not arrive until May 11, 1972, followed by the Instrument Unit on June 7. By then, LM-12 had arrived, the ascent stage on June 16, 1971, and the descent stage the following day; they were not mated until May 18, 1972. CM-114, SM-114 and SLA-21 all arrived on March 24, 1972. The rover reached Kennedy Space Center on June 2, 1972. The CM and the service module (SM) were mated on March 28, 1972, and the testing of the spacecraft began that month. The CSM was placed in a vacuum chamber at Kennedy Space Center, and the testing was conducted under those conditions. The LM was also placed in a vacuum chamber; both the prime and the backup crews participated in testing the CSM and LM. During the testing, it was discovered that the LM's rendezvous radar assembly had received too much voltage during earlier tests; it was replaced by the manufacturer, Grumman. The LM's landing radar also malfunctioned intermittently and was also replaced. The front and rear steering motors of the Lunar Roving Vehicle (LRV) also had to be replaced, and it required several modifications. Following the July 1972 removal from the vacuum chamber, the LM's landing gear was installed, and it, the CSM and the SLA were mated to each other. The combined craft was moved into the Vehicle Assembly Building in August for further testing, after which it was mounted on the launch vehicle. After completing testing, including a simulated mission, the LRV was placed in the LM on August 13. Erection of the stages of the launch vehicle began on May 15, 1972, in High Bay 3 of the Vehicle Assembly Building, and was completed on June 27. Since the launch vehicles for Skylab 1 and Skylab 2 were being processed in that building at the same time, this marked the first time NASA had three launch vehicles there since the height of the Apollo program in 1969. After the spacecraft was mounted on the launch vehicle on August 24, it was rolled out to Pad 39-A on August 28. Although this was not the final time a Saturn V would fly (another would lift Skylab to orbit), area residents reacted as though it was, and 5,000 of them watched the rollout, during which the prime crew joined the operating crew from Bendix atop the crawler. At Pad 39-A, testing continued, and the CSM was electrically mated to the launch vehicle on October 11, 1972. Testing concluded with the countdown demonstration tests, accomplished on November 20 and 21. The countdown to launch began at 7:53 a.m. (12:53 UTC) on December 5, 1972. Lunar surface science ALSEP The Apollo Lunar Surface Experiments Package was a suite of nuclear-powered experiments, flown on each landing mission after Apollo 11. This equipment was to be emplaced by the astronauts to continue functioning after the astronauts returned to Earth. For Apollo 17, the ALSEP experiments were a Heat Flow Experiment (HFE), to measure the rate of heat flow from the interior of the Moon, a Lunar Surface Gravimeter (LSG), to measure alterations in the lunar gravity field at the site, a Lunar Atmospheric Composition Experiment (LACE), to investigate what the lunar atmosphere is made up of, a Lunar Seismic Profiling Experiment (LSPE), to detect nearby seismic activity, and a Lunar Ejecta and Meteorites Experiment (LEME), to measure the velocity and energy of dust particles. Of these, only the HFE had been flown before; the others were new. The HFE had been flown on the aborted Apollo 13 mission, as well as on Apollo 15 and 16, but placed successfully only on Apollo 15, and unexpected results from that device made scientists anxious for a second successful emplacement. It was successfully deployed on Apollo 17. The lunar gravimeter was intended to detect wavers in gravity, which would provide support for Albert Einstein's general theory of relativity; it ultimately failed to function as intended. The LACE was a surface-deployed module that used a mass spectrometer to analyze the Moon's atmosphere. On previous missions, the Code Cathode Gauge experiment had measured the quantity of atmospheric particles, but the LACE determined which gases were present: principally neon, helium and hydrogen. The LSPE was a seismic-detecting device that used geophones, which would detect explosives to be set off by ground command once the astronauts left the Moon. When operating, it could only send useful data to Earth in high bit rate, meaning that no other ALSEP experiment could send data then, and limiting its operating time. It was turned on to detect the liftoff of the ascent stage, as well as use of the explosives packages, and the ascent stage's impact, and thereafter about once a week, as well as for some 100 hour periods. The LEME had a set of detectors to measure the characteristics of the dust particles it sought. It was hoped that the LEME would detect dust impacting the Moon from elsewhere, such as from comets or interstellar space, but analysis showed that it primarily detected dust moving at slow speeds across the lunar surface. All powered ALSEP experiments that remained active were deactivated on September 30, 1977, principally because of budgetary constraints. Other lunar-surface science Like Apollo 15 and 16, Apollo 17 carried a Lunar Roving Vehicle. In addition to being used by the astronauts for transport from station to station on the mission's three moonwalks, the LRV was used to transport the astronauts' tools, communications equipment, and the lunar samples they gathered. The Apollo 17 LRV was also used to carry some of the scientific instruments, such as the Traverse Gravimeter Experiment (TGE) and Surface Electrical Properties (SEP) experiment. The Apollo 17 LRV traveled a cumulative distance of approximately in a total drive time of about four hours and twenty-six minutes; the greatest distance Cernan and Schmitt traveled from the lunar module was about . This was the only mission to carry the TGE, which was built by Draper Laboratory at the Massachusetts Institute of Technology. As gravimeters had been useful in studying the Earth's internal structure, the objective of this experiment was to do the same on the Moon. The gravimeter was used to obtain relative gravity measurements at the landing site in the immediate vicinity of the lunar module, as well as various locations on the mission's traverse routes. Scientists would then use this data to help determine the geological substructure of the landing site and the surrounding vicinity. Measurements were taken while the TGE was mounted on the LRV, and also while the device was placed on the lunar surface. A total of 26 measurements were taken with the TGE during the mission's three moonwalks, with productive results. The SEP was also unique to Apollo 17, and included two major components: a transmitting antenna deployed near the lunar module and a receiver mounted on the LRV. At different stops during the mission's traverses, electrical signals traveled from the transmitting device, through the ground, and were received at the LRV. The electrical properties of the lunar regolith could be determined by comparison of the transmitted and received electrical signals. The results of this experiment, which are consistent with lunar rock composition, show that there is almost no water in the area of the Moon in which Apollo 17 landed, to a depth of . A long, diameter device, the Lunar Neutron Probe was inserted into one of the holes drilled into the surface to collect core samples. It was designed to measure the quantity of neutrons which penetrated to the detectors it bore along its length. This was intended to measure the rate of the "gardening" process on the lunar surface, whereby the regolith on the surface is slowly mixed or buried due to micrometeorites and other events. Placed during the first EVA, it was retrieved during the third and final EVA. The astronauts brought it with them back to Earth, and the measurements from it were compared with the evidence of neutron flux in the core that had been removed from the hole it had been placed in. Results from the probe and from the cores were instrumental in current theories that the top centimeter of lunar regolith turns over every million years, whereas "gardening" to a depth of one meter takes about a billion years. Orbital science Biological experiments Apollo 17's CM carried a biological cosmic ray experiment (BIOCORE), containing five mice that had been implanted with radiation monitors under their scalps to see whether they suffered damage from cosmic rays. These animals were placed in individual metal tubes inside a sealed container that had its own oxygen supply, and flown on the mission. All five were pocket mice (Perognathus longimembris); this species was chosen because it was well-documented, small, easy to maintain in an isolated state (not requiring drinking water during the mission and with highly concentrated waste), and for its ability to withstand environmental stress. Officially, the mice—four male and one female—were assigned the identification numbers A3326, A3400, A3305, A3356 and A3352. Unofficially, according to Cernan, the Apollo 17 crew dubbed them Fe, Fi, Fo, Fum, and Phooey. Four of the five mice survived the flight, though only two of them appeared healthy and active; the cause of death of the fifth mouse was not determined. Of those that survived, the study found lesions in the scalp itself and, in one case, the liver. The scalp lesions and liver lesions appeared to be unrelated to one another; nothing was found that could be attributed to cosmic rays. The Biostack experiment was similar to one carried on Apollo 16, and was designed to test the effects of the cosmic rays encountered in space travel on microorganisms that were included, on seeds, and on the eggs of simple animals (brine shrimp and beetles), which were carried in a sealed container. After the mission, the microorganisms and seeds showed little effect, but many of the eggs of all species failed to hatch, or to mature normally; many died or displayed abnormalities. Scientific Instrument Module The Apollo 17 SM contained the scientific instrument module (SIM) bay. The SIM bay housed three new experiments for use in lunar orbit: a lunar sounder, an infrared scanning radiometer, and a far-ultraviolet spectrometer. A mapping camera, panoramic camera, and a laser altimeter, which had been carried previously, were also included in the SIM bay. The lunar sounder was to beam electromagnetic impulses toward the lunar surface, which were designed with the objective of obtaining data to assist in developing a geological model of the interior of the Moon to an approximate depth of . The infrared scanning radiometer was designed with the objective of generating a temperature map of the lunar surface to aid in locating surface features such as rock fields, structural differences in the lunar crust, and volcanic activity. The far-ultraviolet spectrometer was to be used to obtain information on the composition, density, and constituency of the lunar atmosphere. The spectrometer was also designed to detect far-UV radiation emitted by the Sun that had been reflected off the lunar surface. The laser altimeter was designed to measure the altitude of the spacecraft above the lunar surface within approximately , providing altitude information to the panoramic and mapping cameras, which were also in the SIM bay. Light-flash phenomenon and other experiments Beginning with Apollo 11, crew members observed light flashes that penetrated their closed eyelids. These flashes, described by the astronauts as "streaks" or "specks" of light, were usually observed while the spacecraft was darkened during a sleep period. These flashes, while not observed on the lunar surface, would average about two per minute and were observed by the crew members during the trip out to the Moon, back to Earth, and in lunar orbit. The Apollo 17 crew repeated an experiment, also conducted on Apollo 16, with the objective of linking these light flashes with cosmic rays. Evans wore a device over his eyes that recorded the time, strength, and path of high-energy atomic particles that penetrated the device, while the other two wore blindfolds to keep out light. Investigators concluded that the available evidence supports the hypothesis that these flashes occur when charged particles travel through the retina in the eye. Apollo 17 carried a sodium-iodide crystal identical to the ones in the gamma-ray spectrometer flown on Apollo 15 and 16. Data from this, once it was examined on Earth, was to be used to help form a baseline, allowing for subtraction of rays from the CM or from cosmic radiation to gain better data from the earlier results. In addition, the S-band transponders in the CSM and LM were pointed at the Moon to gain data on its gravitational field. Results from the Lunar Orbiter probes had revealed that lunar gravity varies slightly due to the presence of mass concentrations, or "mascons". Data from the missions, and from the lunar subsatellites left by Apollo 15 and 16, were used to map such variations in lunar gravity. Mission events Launch and outbound trip Originally planned to launch on December 6, 1972, at 9:53 p.m. EST (2:53 a.m. on December 7 UTC), Apollo 17 was the final crewed SaturnV launch, and the only one to occur at night. The launch was delayed by two hours and forty minutes due to an automatic cutoff in the launch sequencer at the T-30 second mark in the countdown. The cause of the problem was quickly determined to be the launch sequencer's failure to automatically pressurize the liquid oxygen tank in the third stage of the rocket; although launch control noticed this and manually caused the tank to pressurize, the sequencer did not recognize the fix and therefore paused the countdown. The clock was reset and held at the T-22 minute mark while technicians worked around the malfunction in order to continue with the launch. This pause was the only launch delay in the Apollo program caused by a hardware problem. The countdown then resumed, and the liftoff occurred at 12:33 a.m. EST on December 7, 1972. The launch window, which had begun at the originally planned launch time of 9:53 p.m. on December 6, remained open until 1:31 a.m., the latest time at which a launch could have occurred during the December 6–7 window. Approximately 500,000 people observed the launch in the immediate vicinity of Kennedy Space Center, despite the early-morning hour. The launch was visible as far away as , and observers in Miami, Florida, reported a "red streak" crossing the northern sky. Among those in attendance at the program's final launch were astronauts Neil Armstrong and Dick Gordon, as well as centenarian Charlie Smith, who alleged he was 130 years old at the time of Apollo 17. The ascent resulted in an orbit with an altitude and velocity almost exactly that which had been planned. In the hours following the launch, Apollo 17 orbited the Earth while the crew spent time monitoring and checking the spacecraft to ensure its readiness to depart Earth orbit. At 3:46 a.m. EST, the S-IVB third stage was reignited for the 351-second trans-lunar injection burn to propel the spacecraft towards the Moon. Ground controllers chose a faster trajectory for Apollo 17 than originally planned to allow the vehicle to reach lunar orbit at the planned time, despite the launch delay. The Command and Service Module separated from the S-IVB approximately half an hour following the S-IVB trans-lunar injection burn, after which Evans turned the spacecraft to face the LM, still attached to the S-IVB. The CSM then docked with the LM and extracted it from the S-IVB. Following the LM extraction, Mission Control programmed the S-IVB, no longer needed to propel the spacecraft, to impact the Moon and trip the seismometers left by prior Apollo crews. It struck the Moon just under 87 hours into the mission, triggering the seismometers from Apollo 12, 14, 15 and 16. Approximately nine hours after launch, the crew concluded the mission's first day with a sleep period, until waking up to begin the second day. Mission Control and the crew decided to shorten the mission's second day, the first full day in space, in order to adjust the crew's wake-up times for the subsequent days in preparation for an early morning (EST) wake-up time on the day of the lunar landing, then scheduled for early afternoon (EST). This was done since the first day of the mission had been extended because of the launch delay. Following the second rest period, and on the third day of the mission, the crew executed the first mid-course correction, a two-second burn of the CSM's service propulsion engine to adjust the spacecraft's Moon-bound trajectory. Following the burn, the crew opened the hatch separating the CSM and LM in order to check the LM's systems and concluded that they were nominal. So that events would take place at the time indicated in the flight plan, the mission clocks were moved ahead by 2 hours and 40 minutes, the amount of the launch delay, with one hour of it at 45:00:00 into the mission and the remainder at 65:00:00. Among their other activities during the outbound trip, the crew photographed the Earth from the spacecraft as it travelled towards the Moon. One of these photographs is now known as The Blue Marble. The crew found that one of the latches holding the CSM and LM together was unlatched. While Schmitt and Cernan were engaged in a second period of LM housekeeping beginning just before sixty hours into the Mission, Evans worked on the balky latch. He was successful, and left it in the position it would need to be in for the CSM-LM docking that would occur upon return from the lunar surface. Also during the outward journey, the crew performed a heat flow and convection demonstration, as well as the Apollo light-flash experiment. A few hours before entry into lunar orbit, the SIM door on the SM was jettisoned. At approximately 2:47 p.m. EST on December 10, the service propulsion system engine on the CSM ignited to slow down the CSM/LM stack into lunar orbit. Following orbit insertion and orbital stabilization, the crew began preparations for the landing at Taurus–Littrow. Lunar landing The day of the landing began with a checkout of the Lunar Module's systems, which revealed no problems preventing continuation of the mission. Cernan, Evans, and Schmitt each donned their spacesuits, and Cernan and Schmitt entered the LM in preparation for separating from the CSM and landing. The LM undocked from the CSM, and the two spacecraft orbited close together for about an hour and a half while the astronauts made visual inspections and conducted their final pre-landing checks. After finally separating from the CSM, the LM Challenger and its crew of two adjusted their orbit, such that its lowest point would pass about above the landing site, and began preparations for the descent to Taurus–Littrow. While Cernan and Schmitt prepared for landing, Evans remained in orbit to take observations, perform experiments and await the return of his crewmates a few days later. Soon after completing their preparations for landing and just over two hours following the LM's undocking from the CSM, Cernan and Schmitt began their descent to the Taurus–Littrow valley on the lunar surface with the ignition of the Lunar Module's descent propulsion system (DPS) engine. Approximately ten minutes later, as planned, the LM pitched over, giving Cernan and Schmitt their first look at the landing site during the descent phase and allowing Cernan to guide the spacecraft to a desirable landing target while Schmitt provided data from the flight computer essential for landing. The LM touched down on the lunar surface at 2:55 p.m. EST on December 11, just over twelve minutes after DPS ignition. Challenger landed about east of the planned landing point. Shortly thereafter, the two astronauts began re-configuring the LM for their stay on the surface and began preparations for the first moonwalk of the mission, or EVA-1. Lunar surface First EVA During their approximately 75-hour stay on the lunar surface, Cernan and Schmitt performed three moonwalks (EVAs). The astronauts deployed the LRV, then emplaced the ALSEP and the seismic explosive charges. They drove the rover to nine planned geological-survey stations to collect samples and make observations. Additionally, twelve short sampling stops were made at Schmitt's discretion while riding the rover, during which the astronauts used a handled scoop to get a sample, without dismounting. During lunar-surface operations, Commander Cernan always drove the rover, while Lunar Module Pilot Schmitt was a passenger who assisted with navigation. This division of responsibilities between the two crew positions was used consistently throughout Apollo's J-missions. The first lunar excursion began four hours after landing, at 6:54 p.m. EST on December 11. After exiting through the hatch of the LM and descending the ladder to the footpad, Cernan took the first step on the lunar surface of the mission. Just before doing so, Cernan remarked, "I'm on the footpad. And, Houston, as I step off at the surface at Taurus–Littrow, we'd like to dedicate the first step of Apollo 17 to all those who made it possible." After Cernan surveyed the exterior of the LM and commented on the immediate landing site, Schmitt joined Cernan on the surface. The first task was to offload the rover and other equipment from the LM. While working near the rover, Cernan caught his hammer under the right-rear fender extension, accidentally breaking it off. A similar incident occurred on Apollo 16 as John Young maneuvered around the rover. Although this was not a mission-critical issue, the loss of the part caused Cernan and Schmitt to be covered with dust stirred up when the rover was in motion. The crew made a short-lived fix using duct tape at the beginning of the second EVA, attaching a paper map to the damaged fender. Lunar dust stuck to the tape's surface, however, preventing it from adhering properly. Following deployment and testing the maneuverability of the rover, the crew deployed the ALSEP just west of the landing site. The ALSEP deployment took longer than had been planned, with the drilling of core holes presenting some difficulty, meaning the geological portion of the first EVA would need to be shortened, cancelling a planned visit to Emory crater. Instead, following the deployment of the ALSEP, Cernan and Schmitt drove to Steno crater, to the south of the landing site. The objective at Steno was to sample the subsurface material excavated by the impact that formed the crater. The astronauts gathered of samples, took seven gravimeter measurements, and deployed two explosive packages. The explosive packages were later detonated remotely; the resulting explosions detected by geophones placed by the astronauts and also by seismometers left during previous missions. The first EVA ended after seven hours and twelve minutes. and the astronauts remained in the pressurized LM for the next 17 hours. Second EVA On December 12, awakened by a recording of "Ride of the Valkyries" played from Mission Control, Cernan and Schmitt began their second lunar excursion. The first order of business was to provide the rover's fender a better fix. Overnight, the flight controllers devised a procedure communicated by John Young: taping together four stiff paper maps to form a "replacement fender extension" and then clamping it onto the fender. The astronauts carried out the new fix which did its job without failing until near the end of the third excursion. Cernan and Schmitt then departed for station 2—Nansen Crater, at the foot of the South Massif. When they arrived, their range from the Challenger was 7.6 kilometers (4.7 miles, 25,029 feet). This remains the furthest distance any spacefarers have ever traveled away from the safety of a pressurizable spacecraft while on a planetary body, and also during an EVA of any type. The astronauts were at the extremity of their "walkback limit", a safety constraint meant to ensure that they could walk back to the LM if the rover failed. They began a return trip, traveling northeast in the rover. At station 3, Schmitt fell to the ground while working, looking so awkward that Parker jokingly told him that NASA's switchboard had lit up seeking Schmitt's services for Houston's ballet group, and the site of station 3 was in 2019 renamed Ballet Crater. Cernan took a sample at Station 3 that was to be maintained in vacuum until better analytical techniques became available, joking with the CAPCOM, Parker, about placing a note inside. The container remained unopened until 2022. Stopping at station 4—Shorty crater—the astronauts discovered orange soil, which proved to be very small beads of volcanic glass formed over 3.5 billion years ago. This discovery caused great excitement among the scientists at Mission Control, who felt that the astronauts may have discovered a volcanic vent. However, post-mission sample analysis revealed that Shorty is not a volcanic vent, but rather an impact crater. Analysis also found the orange soil to be a remnant of a fire fountain. This fire fountain sprayed molten lava high into the lunar sky in the Moon's early days, some 3.5 billion years ago and long before Shorty's creation. The orange volcanic beads were droplets of molten lava from the fountain that solidified and were buried by lava deposits until exposed by the impact that formed Shorty, less than 20 million years ago. The final stop before returning to the LM was Camelot crater; throughout the sojourn, the astronauts collected of samples, took another seven gravimeter measurements, and deployed three more explosive packages. Concluding the EVA at seven hours and thirty-seven minutes, Cernan and Schmitt had completed the longest-duration EVA in history to-date, traveling further away from a spacecraft and covering more ground on a planetary body during a single EVA than any other spacefarers. The improvised fender had remained intact throughout, causing the president of the "Auto Body Association of America" to award them honorary lifetime membership. Third EVA The third moonwalk, the last of the Apollo program, began at 5:25 p.m. EST on December 13. Cernan and Schmitt rode the rover northeast of the landing site, exploring the base of the North Massif and the Sculptured Hills. Stopping at station 6, they examined a house-sized split boulder dubbed Tracy's Rock (or Split Rock), after Cernan's daughter. The ninth and final planned station was conducted at Van Serg crater. The crew collected of lunar samples and took another nine gravimeter measurements. Schmitt had seen a fine-grained rock, unusual for that vicinity, earlier in the mission and had stood it on its edge; before closing out the EVA, he went and got it. Subsequently, designated Sample 70215, it was, at , the largest rock brought back by Apollo 17. A small piece of it is on exhibit at the Smithsonian Institution, one of the few rocks from the Moon that the public may touch. Schmitt also collected a sample, designated as Sample 76535, at geology station 6 near the base of the North Massif; the sample, a troctolite, was later identified as the oldest known "unshocked" lunar rock, meaning it has not been damaged by high-impact geological events. Scientists have therefore used Sample 76535 in thermochronological studies to determine if the Moon formed a metallic core or, as study results suggest, a core dynamo. Before concluding the moonwalk, the crew collected a breccia rock, dedicating it to the nations of Earth, 70 of which were represented by students touring the U.S. and present in Mission Control Center in Houston, Texas, at the time. Portions of this sample, known as the Friendship Rock, were subsequently distributed to the nations represented by the students. A plaque located on the LM, commemorating the achievements made during the Apollo program, was then unveiled. Before reentering the LM for the final time, Cernan remarked, Cernan then followed Schmitt into the LM; the final lunar excursion had a duration of seven hours and fifteen minutes. Following closing of the LM hatch and repressurization of the LM cabin, Cernan and Schmitt removed their spacesuits and reconfigured the cabin for a final rest period on the lunar surface. As they did following each of the previous two EVAs, Cernan and Schmitt discussed their geological observations from the day's excursion with mission control while preparing to rest. Solo activities While Cernan and Schmitt were on the lunar surface, Evans remained alone in the CSM in lunar orbit and was assigned a number of observational and scientific tasks to perform while awaiting the return of his crewmates. In addition to the operation of the various orbital science equipment contained in the CSM's SIM bay, Evans conducted both visual and photographic observation of surface features from his aerial vantage point. The orbit of the CSM having been modified to an elliptical orbit in preparation for the LM's departure and eventual descent, one of Evans' solo tasks in the CSM was to circularize its orbit such that the CSM would remain at approximately the same distance above the surface throughout its orbit. Evans observed geological features visible to him and used handheld cameras to record certain visual targets. Evans also observed and sketched the solar corona at "sunrise," or the period of time during which the CSM would pass from the darkened portion of the Moon to the illuminated portion when the Moon itself mostly obscured the sun. To photograph portions of the surface that were not illuminated by the sun while Evans passed over them, Evans relied in conjunction on exposure and Earthlight. Evans photographed such features as the craters Eratosthenes and Copernicus, as well as the vicinity of Mare Orientale, using this technique. According to the Apollo 17 Mission Report, Evans was able to capture all scientific photographic targets, as well as some other targets of interest. Similarly to the crew of Apollo 16, Evans (as well as Schmitt, while in lunar orbit) reported seeing light "flashes" apparently originating from the lunar surface, known as transient lunar phenomena (TLP); Evans reported seeing these "flashes" in the vicinity of Grimaldi crater and Mare Orientale. The causes of TLP are not well-understood and, though inconclusive as an explanation, both of the sites in which Evans reported seeing TLP are the general locations of outgassing from the Moon's interior. Meteorite impacts are another possible explanation. The flight plan kept Evans busy, making him so tired he overslept one morning by an hour, despite the efforts of Mission Control to awaken him. Before the LM departed for the lunar surface, Evans had discovered that he had misplaced his pair of scissors, necessary to open food packets. Cernan and Schmitt lent him one of theirs. The instruments in the SIM bay functioned without significant hindrance during the orbital portion of the mission, though the lunar sounder and the mapping camera encountered minor problems. Evans spent approximately 148 total hours in lunar orbit, including solo time and time spent together with Cernan and Schmitt, which is more time than any other individual has spent orbiting the Moon. Evans was also responsible for piloting the CSM during the orbital phase of the mission, maneuvering the spacecraft to alter and maintain its orbital trajectory. In addition to the initial orbital recircularization maneuver shortly after the LM's departure, one of the solo activities Evans performed in the CSM in preparation for the return of his crewmates from the lunar surface was the plane change maneuver. This maneuver was meant to align the CSM's trajectory to the eventual trajectory of the LM to facilitate rendezvous in orbit. Evans fired the SPS engine of the CSM for about 20 seconds in successfully adjusting the CSM's orbital plane. Return to Earth Cernan and Schmitt successfully lifted off from the lunar surface in the ascent stage of the LM on December14, at 5:54 p.m. EST. The return to lunar orbit took just over seven minutes. The LM, piloted by Cernan, and the CSM, piloted by Evans, maneuvered, and redocked about two hours after liftoff from the surface. Once the docking had taken place, the crew transferred equipment and lunar samples from the LM to the CSM for return to Earth. The crew sealed the hatches between the CSM and the LM ascent stage following completion of the transfer and the LM was jettisoned at 11:51 p.m. EST on December14. The unoccupied ascent stage was then remotely deorbited, crashing it into the Moon with an impact recorded by the seismometers left by Apollo 17 and previous missions. At 6:35 p.m. EST on December16, the CSM's SPS engine was ignited once more to propel the spacecraft away from the Moon on a trajectory back towards Earth. The successful trans-Earth injection SPS burn lasted just over two minutes. During the return to Earth, Evans performed a 65-minute EVA to retrieve film cassettes from the service module's SIM bay, with assistance from Schmitt who remained at the command module's hatch. At approximately 160,000 nautical miles (184,000 mi; 296,000 km) from Earth, it was the third "deep space" EVA in history, performed at great distance from any planetary body. As of , it remains one of only three such EVAs, all performed during Apollo's J-missions under similar circumstances. It was the last EVA of the Apollo program. During the trip back to Earth, the crew operated the infrared radiometer in the SM, as well as the ultraviolet spectrometer. One midcourse correction was performed, lasting 9 seconds. On December 19, the crew jettisoned the no-longer-needed SM, leaving only the CM for return to Earth. The Apollo 17 spacecraft reentered Earth's atmosphere and splashed down safely in the Pacific Ocean at 2:25 p.m. EST, from the recovery ship, . Cernan, Evans, and Schmitt were then retrieved by a recovery helicopter piloted by Commander Edward E. Dahill, III and were safe aboard the recovery ship 52 minutes after splashdown. As the final Apollo mission concluded successfully, Mission Control in Houston was filled with many former flight controllers and astronauts, who applauded as America returned to Earth. Aftermath and spacecraft locations Following their mission, the crew undertook both domestic and international tours, visiting 29 states and 11 countries. The tour kicked off at Super Bowl VII, with the crew leading the crowd in the Pledge of Allegiance; the CM America was also displayed during the pregame activities. None of the Apollo 17 astronauts flew in space again. Cernan retired from NASA and the Navy in 1976. He died in 2017. Evans retired from the Navy in 1976 and from NASA in 1977, entering the private sector. He died in 1990. Schmitt resigned from NASA in 1975 prior to his successful run for a United States Senate seat from New Mexico in 1976. There, he served one six-year term. The Command Module America is currently on display at Space Center Houston at the Lyndon B. Johnson Space Center in Houston, Texas. The ascent stage of Lunar Module Challenger impacted the Moon on December 15, 1972, at 06:50:20.8 UTC (1:50 a.m. EST), at . The descent stage remains on the Moon at the landing site, . In 2023, a study of Apollo-era data from the Lunar Seismic Profiling Experiment showed that the descent stage was causing very slight tremors each lunar morning as components expanded in the heat. Eugene Cernan's flown Apollo 17 spacesuit is in the collection of the Smithsonian's National Air and Space Museum (NASM), where it was transferred in 1974, and Harrison Schmitt's is in storage at NASM's Paul E. Garber Facility. Amanda Young of NASM indicated in 2004 that Schmitt's suit is in the best condition of the flown Apollo lunar spacesuits, and therefore is not on public display. Ron Evans' spacesuit was also transferred from NASA in 1974 to the collection of the NASM; it remains in storage. Since Apollo 17's return, there have been attempts to photograph the landing site, where the LM's descent stage, LRV and some other mission hardware, remain. In 2009 and again in 2011, the Lunar Reconnaissance Orbiter photographed the landing site from increasingly low orbits. At least one group has indicated an intention to visit the site as well; in 2018, the German space company PTScientists said that it planned to land two lunar rovers nearby. See also List of Apollo missions List of astronauts by year of selection List of human spaceflights List of human spaceflight programs List of landings on extraterrestrial bodies List of crewed spacecraft List of NASA missions List of spacewalks and moonwalks 1965–1999 Moon landing The Case of the Missing Moon Rocks Apollo in Real Time Notes References Bibliography External links Apollo 17 Traverses, 43D1S2(25), Lunar Photomap at Lunar and Planetary Institute "Apollo 17" – Detailed mission information by David R. Williams, NASA Goddard Space Flight Center "Table 2-45. Apollo 17 Characteristics" from NASA Historical Data Book: Volume III: Programs and Projects 1969–1978 by Linda Neuman Ezell, NASA SP-4012, NASA History Series (1988) Apollo 17 Lunar Surface Journal "Apollo 17 Real-Time Mission Experience" – All mission audio, film, video, and photography presented in real-time. Apollo 17 Mission Experiments Overview at the Lunar and Planetary Institute Apollo 17 Voice Transcript Pertaining to the Geology of the Landing Site (PDF) by N. G. Bailey and G. E. Ulrich, United States Geological Survey, 1975 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "The Final Flight" – Excerpt from the September 1973 issue of National Geographic magazine Gene Cernan Ronald Evans (astronaut) Harrison Schmitt 1972 in the United States Apollo program missions Articles containing video clips Extravehicular activity Lunar rovers Crewed missions to the Moon Sample return missions Soft landings on the Moon Spacecraft launched in 1972 Spacecraft which reentered in 1972 Last events December 1972 events Spacecraft launched by Saturn rockets 1972 on the Moon

1973

https://en.wikipedia.org/wiki/American%20Revolution

American Revolution

The American Revolution was an ideological and political revolution based on the principles of the American Enlightenment that generally occurred in British America between 1765 and 1789. It created the environment for the American Revolutionary War, which lasted from 1775 to 1783, whereby the Thirteen Colonies secured their independence from the British Crown and consequently established the United States as the first sovereign nation state founded on Enlightenment principles of the consent of the governed, constitutionalism and liberal democracy. American colonists objected to being taxed by the British Parliament, a body in which they had no direct representation. Prior to the 1760s, British colonial authorities afforded the colonies a relatively high level of autonomy in their internal affairs, which were locally governed by colonial legislatures. During the 1760s, however, the British Parliament passed acts that were intended to bring the American colonies under more direct rule by the British monarchy and intertwine the economies of the American colonies with Britain in ways that benefited the British monarchy and increased the colonies' dependence on it. In 1765, the British Parliament passed the Stamp Act, which imposed taxes on official documents, newspapers and magazines, and most things printed in the colonies, leading to colonial protest and resulting in representatives from several colonies convening the Stamp Act Congress in New York City to plan a response. The British repealed the Stamp Act, alleviating tensions briefly but they flared again in 1767 with Parliament's passage of the Townshend Acts, a group of new taxes and regulations imposed on the thirteen colonies. In an effort to quell a mounting rebellion in the colonies, which was particularly severe in the colonial-era Province of Massachusetts Bay, King George III deployed troops to Boston, resulting in the Boston Massacre on March 5, 1770. The British government then repealed most of the Townshend duties in 1770, but it retained its tax on tea in order to symbolically assert Parliament's right to tax the colonies. The thirteen colonies responded assertively, first burning the Gaspee in Rhode Island in 1772 and then launching the Boston Tea Party in Boston Harbor on December 16, 1773, which vastly escalated tensions. The British responded by closing Boston Harbor and enacting a series of punitive laws, which effectively rescinded Massachusetts' governing autonomy. In late 1774, in support of Massachusetts, twelve of the thirteen colonies sent delegates to Philadelphia, where they formed the First Continental Congress and began coordinating resistance to Britain's colonial governance. Opponents of Britain were known as "Patriots" or "Whigs", and colonists who retained allegiance to the Crown were known as "Loyalists" or "Tories." In early 1775, the British monarchy declared Massachusetts to be in a state of open defiance and rebellion, and it sent an order to have American patriots disarmed. On April 19, 1775, tensions between the British Army and patriot militiamen escalated to open warfare, launching the American Revolutionary War, when British troops were sent to capture a cache of military supplies and were confronted by American patriots at Lexington and Concord. On June 14, 1775, the Second Continental Congress in Philadelphia responded by authorizing formation of the Continental Army and appointed George Washington as its commander-in-chief. In an early victory for the Americans, Washington and the Continental Army engaged British forces in the Siege of Boston, forcing them to withdraw by sea. Each of the thirteen colonies also formed their own Provincial Congress, assuming power from former British-controlled colonial governments. The Provincial Congresses suppressed Loyalists and contributed to the Continental Army. The Patriots unsuccessfully attempted to invade northeastern Quebec in an attempt to rally sympathetic colonists there during the winter of 1775–1776, but were more successful in the southwestern parts of the colony. At Independence Hall in Philadelphia, the Second Continental Congress declared King George III a tyrant who trampled the colonists' rights as Englishmen. On July 2, 1776, the Congress passed the Lee Resolution, which declared that the colonies considered themselves "free and independent states". Two days later, on July 4, 1776, the Congress unanimously adopted the Declaration of Independence, which was principally authored by Thomas Jefferson, a member of the Committee of Five charged by Congress with its development. The Declaration of Independence embodied the political philosophies of liberalism and republicanism, rejected monarchy and aristocracy, and famously proclaimed that "all men are created equal". In the summer of 1776, in a setback for American patriots, the British captured New York City and its strategic harbor. In September 1777, in anticipation of a coordinated attack by the British Army on the revolutionary capital of Philadelphia, the Continental Congress was forced to depart Philadelphia temporarily for Baltimore, where they continued deliberations. In October 1777, the Continental Army experienced a significant victory, capturing British troops at the Battle of Saratoga. Following the victory in the Saratoga campaign, France then entered the war as an ally of the United States and the cause of American independence, which expanded the Revolutionary War into a global conflict. The British Royal Navy blockaded ports and held New York City for the duration of the war, and other cities for brief periods, but failed in their effort to destroy Washington's forces. Britain's priorities shifted southward, attempting to hold the Southern states with the anticipated aid of Loyalists that never materialized. British general Charles Cornwallis captured Continental Army troops at Charleston, South Carolina in early 1780, but he failed to enlist enough volunteers from Loyalist civilians to take effective control of the territory. A combined American and French force captured Cornwallis' army at Yorktown in the fall of 1781, effectively securing an American victory and end to the war. On September 3, 1783, the British signed the Treaty of Paris in which they acknowledged the independence and sovereignty of the thirteen colonies, and led to the formation of the United States, which took possession of nearly all the territory east of the Mississippi River and south of the Great Lakes, including southern Canada, while the British retained control of northern Canada, and French ally Spain took back Florida. Among the significant results of the American victory were American independence and the end of British mercantilism in America, opening up worldwide trade for the United States, including a resumption of it with Britain. Around 60,000 Loyalists migrated to other British territories in Canada and elsewhere, but the great majority remained in the United States. In 1787, at the Congress of the Confederation in Philadelphia, American delegates authorized, and states then ratified the United States Constitution, which took effect March 4, 1789 and replaced the weaker wartime Articles of Confederation. It provided for a relatively strong national government structured as a federal republic, including an elected executive, a national judiciary, and an elected bicameral Congress representing states in the Senate and the population in the House of Representatives. With its victory in the American Revolution, the United States became the first federal democratic republic in world history founded on the consent of the governed. In 1791, a Bill of Rights was ratified as the first ten amendments, guaranteeing fundamental rights used as justification for the revolution. Subsequent amendments, including the Reconstruction Amendments, the Nineteenth Amendment, and others, extended those rights to ever greater categories of citizens. Origin 1651–1763: Early seeds From the start of English colonization of the Americas, the English government pursued a policy of mercantilism, consistent with the economic policies of other European colonial powers of the time. Under this system, they hoped to grow England's economic and political power by restricting imports, promoting exports, regulating commerce, gaining access to new natural resources, and accumulating new precious metals as monetary reserves. Mercantilist policies were a defining feature of several English American colonies from their inception. The original 1606 charter of the Virginia Company regulated trade in what would become the Colony of Virginia. In general, the export of raw materials to foreign lands was banned, imports of foreign goods were discouraged, and cabotage was restricted to English vessels. These regulations were enforced by the Royal Navy. Following the Parliamentarian victory in the English Civil War, the first mercantilist legislation was passed. In 1651, the Rump Parliament passed the first of the Navigation Acts, intended to both improve England's trade ties with its colonies and to address Dutch domination of the trans-Atlantic trade at the time. This led to the outbreak of war with the Netherlands the following year. After the Restoration, the 1651 Act was repealed, but the Cavalier Parliament passed a series of even more restrictive Navigation Acts. Colonial reactions to these policies were mixed. The Acts prohibited exports of tobacco and other raw materials to non-English territories, which prevented many planters from receiving higher prices for their goods. Additionally, merchants were restricted from importing certain goods and materials from other nations, harming profits. These factors led to smuggling among colonial merchants, especially following passage of the Molasses Act. On the other hand, certain merchants and local industries benefitted from the restrictions on foreign competition. The restrictions on foreign-built ships also greatly benefitted the colonial shipbuilding industry, particularly of the New England colonies. Some argue that the economic impact was minimal on the colonists, but the political friction which the acts triggered was more serious, as the merchants most directly affected were also the most politically active. King Philip's War was fought from 1675 to 1678 between the New England colonies and a handful of indigenous tribes. It was fought without military assistance from England, thereby contributing to the development of a unique American identity separate from that of the British people. The Restoration of King Charles II to the English throne also accelerated this development. New England had strong Puritan heritage and had supported the parliamentarian Commonwealth government that was responsible for the execution of his father, Charles I. Massachusetts did not recognize the legitimacy of Charles II's reign for more than a year after its onset. Charles II thus became determined to bring the New England colonies under a more centralized administration and direct English control in the 1680s. The New England colonists fiercely opposed his efforts, and the Crown nullified their colonial charters in response. Charles' successor James II finalized these efforts in 1686, establishing the consolidated Dominion of New England, which also included the formerly separate colonies of New York and New Jersey. Edmund Andros was appointed royal governor, and tasked with governing the new Dominion under his direct rule. Colonial assemblies and town meetings were restricted, new taxes were levied, and rights were abridged. Dominion rule triggered bitter resentment throughout New England; the enforcement of the unpopular Navigation Acts and the curtailing of local democracy greatly angered the colonists. New Englanders were encouraged, however, by a change of government in England which saw King James II effectively abdicate, and a populist uprising in Boston overthrew Dominion rule on April 18, 1689. Colonial governments reasserted their control after the revolt. The new monarchs, William and Mary, granted new charters to the individual New England colonies, and local democratic self-government was restored. Successive Crown governments made no attempts to restore the Dominion. Subsequent British governments continued in their efforts to tax certain goods however, passing acts regulating the trade of wool, hats, and molasses. The Molasses Act of 1733 was particularly egregious to the colonists, as a significant part of colonial trade relied on molasses. The taxes severely damaged the New England economy and resulted in a surge of smuggling, bribery, and intimidation of customs officials. Colonial wars fought in America were also a source of considerable tension. For example, New England colonial forces captured the fortress of Louisbourg in Acadia during King George's War in 1745, but the British government then ceded it back to France in 1748 in exchange for Chennai, which the British had lost in 1746. New England colonists resented their losses of lives, as well as the effort and expenditure involved in subduing the fortress, only to have it returned to their erstwhile enemy, who would remain a threat to them after the war. Some writers begin their histories of the American Revolution with the British coalition victory in the Seven Years' War in 1763, viewing the French and Indian War as though it were the American theater of the Seven Years' War. Lawrence Henry Gipson writes: The Royal Proclamation of 1763 redrew boundaries of the lands west of newly-British Quebec and west of a line running along the crest of the Allegheny Mountains, making them indigenous territory and barred to colonial settlement for two years. The colonists protested, and the boundary line was adjusted in a series of treaties with indigenous tribes. In 1768, the Iroquois agreed to the Treaty of Fort Stanwix, and the Cherokee agreed to the Treaty of Hard Labour followed in 1770 by the Treaty of Lochaber. The treaties opened most of what is present-day Kentucky and West Virginia to colonial settlement. The new map was drawn up at the Treaty of Fort Stanwix, which moved the line much farther to the west, from the green line to the red line on the map at right. 1764–1766: Taxes imposed and withdrawn In 1764 Parliament passed the Sugar Act, decreasing the existing customs duties on sugar and molasses but providing stricter measures of enforcement and collection. That same year, Prime Minister George Grenville proposed direct taxes on the colonies to raise revenue, but he delayed action to see whether the colonies would propose some way to raise the revenue themselves. Grenville asserted in 1762 that the whole revenue of the custom houses in America amounted to one or two thousand pounds sterling a year, and that the English exchequer was paying between seven and eight thousand pounds a year to collect. Adam Smith wrote in The Wealth of Nations that Parliament "has never hitherto demanded of [the American colonies] anything which even approached to a just proportion to what was paid by their fellow subjects at home." Benjamin Franklin would later testify in Parliament in 1766 to the contrary, reporting that Americans already contributed heavily to the defense of the Empire. He argued that local colonial governments had raised, outfitted, and paid 25,000 soldiers to fight France in just the French and Indian War alone—as many as Britain itself sent—and spent many millions from American treasuries doing so. Parliament passed the Stamp Act in March 1765, which imposed direct taxes on the colonies for the first time. All official documents, newspapers, almanacs, and pamphlets were required to have the stamps—even decks of playing cards. The colonists did not object that the taxes were high; they were actually low. They objected to their lack of representation in the Parliament, which gave them no voice concerning legislation that affected them. The British were, however, reacting to an entirely different issue: at the conclusion of the recent war the Crown had to deal with approximately 1,500 politically well-connected British Army officers. The decision was made to keep them on active duty with full pay, but they—and their commands—also had to be stationed somewhere. Stationing a standing army in Great Britain during peacetime was politically unacceptable, so they determined to station them in America and have the Americans pay them through the new tax. The soldiers had no military mission however; they were not there to defend the colonies because there was no current threat to the colonies. Shortly following adoption of the Stamp Act, the Sons of Liberty formed, and began using public demonstrations, boycotts, and threats of violence to ensure that the British tax laws became unenforceable. In Boston, the Sons of Liberty burned the records of the vice admiralty court and looted the home of chief justice Thomas Hutchinson. Several legislatures called for united action, and nine colonies sent delegates to the Stamp Act Congress in New York City in October. Moderates led by John Dickinson drew up a Declaration of Rights and Grievances stating that taxes passed without representation violated their rights as Englishmen, and Congressed emphasized their determination by organizing a boycott on imports of all British merchandise. The Parliament at Westminster saw itself as the supreme lawmaking authority throughout the Empire and thus entitled to levy any tax without colonial approval or even consultation. They argued that the colonies were legally British corporations subordinate to the British Parliament, and they pointed to numerous instances where Parliament had made laws in the past that were binding on the colonies. Parliament insisted that the colonists effectively enjoyed a "virtual representation", as most British people did, since only a small minority of the British population elected representatives to Parliament. However, Americans such as James Otis maintained that there was no one in Parliament responsible specifically for any colonial constituency, so they were not "virtually represented" by anyone in Parliament at all. The Rockingham government came to power in July 1765, and Parliament debated whether to repeal the stamp tax or to send an army to enforce it. Benjamin Franklin appeared to make the case for repeal, explaining that the colonies had spent heavily in manpower, money, and blood defending the empire in a series of wars against the French and indigenous people, and that further taxes to pay for those wars were unjust and might bring about a rebellion. Parliament agreed and repealed the tax on February 21, 1766, but they insisted in the Declaratory Act of March 1766 that they retained full power to make laws for the colonies "in all cases whatsoever". The repeal nonetheless caused widespread celebrations in the colonies. 1767–1773: Townshend Acts and the Tea Act In 1767, the British Parliament passed the Townshend Acts, which placed duties on several staple goods, including paper, glass, and tea, and established a Board of Customs in Boston to more rigorously execute trade regulations. The new taxes were enacted on the belief that Americans only objected to internal taxes and not to external taxes such as custom duties. However, in his widely read pamphlet, Letters from a Farmer in Pennsylvania, John Dickinson argued against the constitutionality of the acts because their purpose was to raise revenue and not to regulate trade. Colonists responded to the taxes by organizing new boycotts of British goods. These boycotts were less effective, however, as the goods taxed by the Townshend Acts were widely used. In February 1768, the Assembly of Massachusetts Bay Colony issued a circular letter to the other colonies urging them to coordinate resistance. The governor dissolved the assembly when it refused to rescind the letter. Meanwhile, a riot broke out in Boston in June 1768 over the seizure of the sloop Liberty, owned by John Hancock, for alleged smuggling. Customs officials were forced to flee, prompting the British to deploy troops to Boston. A Boston town meeting declared that no obedience was due to parliamentary laws and called for the convening of a convention. A convention assembled but only issued a mild protest before dissolving itself. In January 1769, Parliament responded to the unrest by reactivating the Treason Act 1543 which called for subjects outside the realm to face trials for treason in England. The governor of Massachusetts was instructed to collect evidence of said treason, and the threat caused widespread outrage, though it was not carried out. On March 5, 1770, a large crowd gathered around a group of British soldiers on a Boston street. The crowd grew threatening, throwing snowballs, rocks, and debris at them. One soldier was clubbed and fell. There was no order to fire, but the soldiers panicked and fired into the crowd. They hit 11 people; three civilians died of wounds at the scene of the shooting, and two died shortly after the incident. The event quickly came to be called the Boston Massacre. The soldiers were tried and acquitted (defended by John Adams), but the widespread descriptions soon began to turn colonial sentiment against the British. This accelerated the downward spiral in the relationship between Britain and the Province of Massachusetts. A new ministry under Lord North came to power in 1770, and Parliament withdrew all taxes except the tax on tea, giving up its efforts to raise revenue while maintaining the right to tax. This temporarily resolved the crisis, and the boycott of British goods largely ceased, with only the more radical patriots such as Samuel Adams continuing to agitate. In June 1772, American patriots, including John Brown, burned a British warship that had been vigorously enforcing unpopular trade regulations, in what became known as the Gaspee Affair. The affair was investigated for possible treason, but no action was taken. In 1772, it became known that the Crown intended to pay fixed salaries to the governors and judges in Massachusetts, which had been paid by local authorities. This would reduce the influence of colonial representatives over their government. In Boston, Samuel Adams set about creating new Committees of Correspondence, which linked Patriots in all 13 colonies and eventually provided the framework for a rebel government. Virginia, the largest colony, set up its Committee of Correspondence in early 1773, on which Patrick Henry and Thomas Jefferson served. A total of about 7,000 to 8,000 Patriots served on Committees of Correspondence at the colonial and local levels, comprising most of the leadership in their communities. Loyalists were excluded. The committees became the leaders of the American resistance to British actions, and later largely determined the war effort at the state and local level. When the First Continental Congress decided to boycott British products, the colonial and local Committees took charge, examining merchant records and publishing the names of merchants who attempted to defy the boycott by importing British goods. In 1773, private letters were published in which Massachusetts Governor Thomas Hutchinson claimed that the colonists could not enjoy all English liberties, and in which Lieutenant Governor Andrew Oliver called for the direct payment of colonial officials. The letters' contents were used as evidence of a systematic plot against American rights, and discredited Hutchinson in the eyes of the people; the colonial Assembly petitioned for his recall. Benjamin Franklin, postmaster general for the colonies, acknowledged that he leaked the letters, which led to him being berated by British officials and removed from his position. Meanwhile, Parliament passed the Tea Act lowering the price of taxed tea exported to the colonies, to help the British East India Company undersell smuggled untaxed Dutch tea. Special consignees were appointed to sell the tea to bypass colonial merchants. The act was opposed by those who resisted the taxes and also by smugglers who stood to lose business. In most instances, the consignees were forced by the Americans to resign and the tea was turned back, but Massachusetts governor Hutchinson refused to allow Boston merchants to give in to pressure. A town meeting in Boston determined that the tea would not be landed, and ignored a demand from the governor to disperse. On December 16, 1773, a group of men, led by Samuel Adams and dressed to evoke the appearance of indigenous people, boarded the ships of the East India Company and dumped £10,000 worth of tea from their holds (approximately £636,000 in 2008) into Boston Harbor. Decades later, this event became known as the Boston Tea Party and remains a significant part of American patriotic lore. 1774–1775: Intolerable Acts The British government responded by passing several measures that came to be known as the Intolerable Acts, further darkening colonial opinion towards England. They consisted of four laws enacted by the British parliament. The first was the Massachusetts Government Act which altered the Massachusetts charter and restricted town meetings. The second act was the Administration of Justice Act which ordered that all British soldiers to be tried were to be arraigned in Britain, not in the colonies. The third Act was the Boston Port Act, which closed the port of Boston until the British had been compensated for the tea lost in the Boston Tea Party. The fourth Act was the Quartering Act of 1774, which allowed royal governors to house British troops in the homes of citizens without requiring permission of the owner. In response, Massachusetts patriots issued the Suffolk Resolves and formed an alternative shadow government known as the Provincial Congress, which began training militia outside British-occupied Boston. In September 1774, the First Continental Congress convened, consisting of representatives from each colony, to serve as a vehicle for deliberation and collective action. During secret debates, conservative Joseph Galloway proposed the creation of a colonial Parliament that would be able to approve or disapprove acts of the British Parliament, but his idea was tabled in a vote of 6 to 5 and was subsequently removed from the record. Congress called for a boycott beginning on December 1, 1774, of all British goods; it was enforced by new local committees authorized by the Congress. Military hostilities begin Massachusetts was declared in a state of rebellion in February 1775 and the British garrison received orders to disarm the rebels and arrest their leaders, leading to the Battles of Lexington and Concord on April 19, 1775. The Patriots laid siege to Boston, expelled royal officials from all the colonies, and took control through the establishment of Provincial Congresses. The Battle of Bunker Hill followed on June 17, 1775. It was a British victory—but at a great cost: about 1,000 British casualties from a garrison of about 6,000, as compared to 500 American casualties from a much larger force. The Second Continental Congress was divided on the best course of action, but eventually produced the Olive Branch Petition, in which they attempted to come to an accord with King George. The king, however, issued a Proclamation of Rebellion which declared that the states were "in rebellion" and the members of Congress were traitors. The war that arose was in some ways a classic insurgency. As Benjamin Franklin wrote to Joseph Priestley in October 1775: In the winter of 1775, the Americans invaded northeastern Quebec under generals Benedict Arnold and Richard Montgomery, expecting to rally sympathetic colonists there. The attack was a failure; many Americans who weren't killed were either captured or died of smallpox. In March 1776, the Continental Army forced the British to evacuate Boston, with George Washington as the commander of the new army. The revolutionaries now fully controlled all thirteen colonies and were ready to declare independence. There still were many Loyalists, but they were no longer in control anywhere by July 1776, and all of the Royal officials had fled. Creating new state constitutions Following the Battle of Bunker Hill in June 1775, the Patriots had control of Massachusetts outside Boston's city limits, and the Loyalists suddenly found themselves on the defensive with no protection from the British army. In all 13 colonies, Patriots had overthrown their existing governments, closing courts and driving away British officials. They held elected conventions and "legislatures" that existed outside any legal framework; new constitutions were drawn up in each state to supersede royal charters. They proclaimed that they were now states, no longer colonies. On January 5, 1776, New Hampshire ratified the first state constitution. In May 1776, Congress voted to suppress all forms of crown authority, to be replaced by locally created authority. New Jersey, South Carolina, and Virginia created their constitutions before July 4. Rhode Island and Connecticut simply took their existing royal charters and deleted all references to the crown. The new states were all committed to republicanism, with no inherited offices. They decided what form of government to create, and also how to select those who would craft the constitutions and how the resulting document would be ratified. On May 26, 1776, John Adams wrote James Sullivan from Philadelphia warning against extending the franchise too far: The resulting constitutions in states, including those of Delaware, Maryland, Massachusetts, New York, and Virginia featured: Property qualifications for voting and even more substantial requirements for elected positions (though New York and Maryland lowered property qualifications) Bicameral legislatures, with the upper house as a check on the lower Strong governors with veto power over the legislature and substantial appointment authority Few or no restraints on individuals holding multiple positions in government The continuation of state-established religion In Pennsylvania, New Jersey, and New Hampshire, the resulting constitutions embodied: universal manhood suffrage, or minimal property requirements for voting or holding office (New Jersey enfranchised some property-owning widows, a step that it retracted 25 years later) strong, unicameral legislatures relatively weak governors without veto powers, and with little appointing authority prohibition against individuals holding multiple government posts The radical provisions of Pennsylvania's constitution, however, lasted only 14 years. In 1790, conservatives gained power in the state legislature, called a new constitutional convention, and rewrote the constitution. The new constitution substantially reduced universal male suffrage, gave the governor veto power and patronage appointment authority, and added an upper house with substantial wealth qualifications to the unicameral legislature. Thomas Paine called it a constitution unworthy of America. Independence and Union In April 1776, the North Carolina Provincial Congress issued the Halifax Resolves explicitly authorizing its delegates to vote for independence. By June, nine Provincial Congresses were ready for independence; one by one, the last four fell into line: Pennsylvania, Delaware, Maryland, and New York. Richard Henry Lee was instructed by the Virginia legislature to propose independence, and he did so on June 7, 1776. On June 11, a committee was created by the Second Continental Congress to draft a document explaining the justifications for separation from Britain. After securing enough votes for passage, independence was voted for on July 2. Gathered at Pennsylvania State House in Philadelphia, 56 of the nation's Founding Fathers, representing America's Thirteen Colonies, unanimously adopted and issued to King George III the Declaration of Independence, which was drafted largely by Thomas Jefferson and presented by the Committee of Five, which had been charged with its development. The Congress struck several provisions of Jefferson's draft, and then adopted it unanimously on July 4. With the issuance of the Declaration of Independence, each colony began operating as independent and autonomous states. The next step was to form a union to facilitate international relations and alliances. On November 5, 1777, the Congress approved the Articles of Confederation and Perpetual Union and sent it to each state for ratification. The Congress immediately began operating under the Articles' terms, providing a structure of shared sovereignty during prosecution of the Revolutionary War and facilitating international relations and alliances. The Articles were fully ratified on March 1, 1781. At that point, the Continental Congress was dissolved and a new government of the United States in Congress Assembled took its place the following day, on March 2, 1782, with Samuel Huntington leading the Congress as presiding officer. Defending the Revolution British return: 1776–1777 According to British historian Jeremy Black, the British had significant advantages, including a highly trained army, the world's largest navy, and an efficient system of public finance that could easily fund the war. However, they seriously misunderstood the depth of support for the American Patriot position and ignored the advice of General Gage, misinterpreting the situation as merely a large-scale riot. The British government believed that they could overawe the Americans by sending a large military and naval force, forcing them to be loyal again: Washington forced the British out of Boston in the spring of 1776, and neither the British nor the Loyalists controlled any significant areas. The British, however, were amassing forces at their naval base at Halifax, Nova Scotia. They returned in force in July 1776, landing in New York and defeating Washington's Continental Army in August at the Battle of Brooklyn. Following that victory, they requested a meeting with representatives from Congress to negotiate an end to hostilities. A delegation including John Adams and Benjamin Franklin met British admiral Richard Howe on Staten Island in New York Harbor on September 11 in what became known as the Staten Island Peace Conference. Howe demanded that the Americans retract the Declaration of Independence, which they refused to do, and negotiations ended. The British then seized New York City and nearly captured Washington's army. They made the city and its strategic harbor their main political and military base of operations, holding it until November 1783. The city became the destination for Loyalist refugees and a focal point of Washington's intelligence network. The British also took New Jersey, pushing the Continental Army into Pennsylvania. Washington crossed the Delaware River back into New Jersey in a surprise attack in late December 1776 and defeated the Hessian and British armies at Trenton and Princeton, thereby regaining control of most of New Jersey. The victories gave an important boost to Patriots at a time when morale was flagging, and they have become iconic events of the war. In 1777, the British sent Burgoyne's invasion force from Canada south to New York to seal off New England. Their aim was to isolate New England, which the British perceived as the primary source of agitation. Rather than move north to support Burgoyne, the British army in New York City went to Philadelphia in a major case of mis-coordination, capturing it from Washington. The invasion army under Burgoyne was much too slow and became trapped in northern New York state. It surrendered after the Battles of Saratoga in October 1777. From early October 1777 until November 15, a siege distracted British troops at Fort Mifflin, Philadelphia, Pennsylvania, and allowed Washington time to preserve the Continental Army by safely leading his troops to harsh winter quarters at Valley Forge. Prisoners On August 23, 1775, George III declared Americans to be traitors to the Crown if they took up arms against royal authority. There were thousands of British and Hessian soldiers in American hands following their surrender at the Battles of Saratoga. Lord Germain took a hard line, but the British generals on American soil never held treason trials, and instead treated captured American soldiers as prisoners of war. The dilemma was that tens of thousands of Loyalists were under American control and American retaliation would have been easy. The British built much of their strategy around using these Loyalists. The British maltreated the prisoners whom they held, resulting in more deaths to American prisoners of war than from combat operations. At the end of the war, both sides released their surviving prisoners. American alliances after 1778 The capture of a British army at Saratoga encouraged the French to formally enter the war in support of Congress, and Benjamin Franklin negotiated a permanent military alliance in early 1778; France thus became the first foreign nation to officially recognize the Declaration of Independence. On February 6, 1778, the United States and France signed the Treaty of Amity and Commerce and the Treaty of Alliance. William Pitt spoke out in Parliament urging Britain to make peace in America and to unite with America against France, while British politicians who had sympathized with colonial grievances now turned against the Americans for allying with Britain's rival and enemy. The Spanish and the Dutch became allies of the French in 1779 and 1780 respectively, forcing the British to fight a global war without major allies, and requiring it to slip through a combined blockade of the Atlantic. Britain began to view the American war for independence as merely one front in a wider war, and the British chose to withdraw troops from America to reinforce the British colonies in the Caribbean, which were under threat of Spanish or French invasion. British commander Sir Henry Clinton evacuated Philadelphia and returned to New York City. General Washington intercepted him in the Battle of Monmouth Court House, the last major battle fought in the north. After an inconclusive engagement, the British retreated to New York City. The northern war subsequently became a stalemate, as the focus of attention shifted to the smaller southern theater. The British move South: 1778–1783 The British strategy in America now concentrated on a campaign in the southern states. With fewer regular troops at their disposal, the British commanders saw the "southern strategy" as a more viable plan, as they perceived the south as strongly Loyalist with a large population of recent immigrants and large numbers of slaves who might be tempted to run away from their masters to join the British and gain their freedom. Beginning in late December 1778, the British captured Savannah and controlled the Georgia coastline. In 1780, they launched a fresh invasion and took Charleston, as well. A significant victory at the Battle of Camden meant that royal forces soon controlled most of Georgia and South Carolina. The British set up a network of forts inland, hoping that the Loyalists would rally to the flag. Not enough Loyalists turned out, however, and the British had to fight their way north into North Carolina and Virginia with a severely weakened army. Behind them, much of the territory that they had already captured dissolved into a chaotic guerrilla war, fought predominantly between bands of Loyalists and American militia, and which negated many of the gains that the British had previously made. Surrender at Yorktown (1781) The British army under Cornwallis marched to Yorktown, Virginia, where they expected to be rescued by a British fleet. The fleet did arrive, but so did a larger French fleet. The French were victorious in the Battle of the Chesapeake, and the British fleet returned to New York for reinforcements, leaving Cornwallis trapped. In October 1781, the British surrendered their second invading army of the war under a siege by the combined French and Continental armies commanded by Washington. The end of the war Washington did not know if or when the British might reopen hostilities after Yorktown. They still had 26,000 troops occupying New York City, Charleston, and Savannah, together with a powerful fleet. The French army and navy departed, so the Americans were on their own in 1782–83. The American treasury was empty, and the unpaid soldiers were growing restive, almost to the point of mutiny or possible coup d'etat. Washington dispelled the unrest among officers of the Newburgh Conspiracy in 1783, and Congress subsequently created the promise of a five years bonus for all officers. Historians continue to debate whether the odds were long or short for American victory. John E. Ferling says that the odds were so long that the American victory was "almost a miracle". On the other hand, Joseph Ellis says that the odds favored the Americans, and asks whether there ever was any realistic chance for the British to win. He argues that this opportunity came only once, in the summer of 1776, and the British failed that test. Admiral Howe and his brother General Howe "missed several opportunities to destroy the Continental Army .... Chance, luck, and even the vagaries of the weather played crucial roles." Ellis's point is that the strategic and tactical decisions of the Howes were fatally flawed because they underestimated the challenges posed by the Patriots. Ellis concludes that, once the Howe brothers failed, the opportunity "would never come again" for a British victory. Support for the conflict had never been strong in Britain, where many sympathized with the Americans, but now it reached a new low. King George wanted to fight on, but his supporters lost control of Parliament and they launched no further offensives in America on the eastern seaboard. However, the British continued formal and informal assistance to Indian tribes making war on US citizens over the next three decades, which contributed to a "Second American Revolution" in the War of 1812. In that war against Britain, the US permanently established its territory and its citizenship independent of the British Empire. Paris peace treaty During negotiations in Paris, the American delegation discovered that France supported American independence but no territorial gains, hoping to confine the new nation to the area east of the Appalachian Mountains. The Americans opened direct secret negotiations with London, cutting out the French. British Prime Minister Lord Shelburne was in charge of the British negotiations, and he saw a chance to make the United States a valuable economic partner. The US obtained all the land east of the Mississippi River, including southern Canada, but Spain took control of Florida from the British. It gained fishing rights off Canadian coasts, and agreed to allow British merchants and Loyalists to recover their property. Prime Minister Shelburne foresaw highly profitable two-way trade between Britain and the rapidly growing United States, which did come to pass. The blockade was lifted and all British interference had been driven out, and American merchants were free to trade with any nation anywhere in the world. The British largely abandoned their indigenous allies, who were not a party to this treaty and did not recognize it until they were defeated militarily by the United States. However, the British did sell them munitions and maintain forts in American territory until the Jay Treaty of 1795. Losing the war and the Thirteen Colonies was a shock to Britain. The war revealed the limitations of Britain's fiscal-military state when they discovered that they suddenly faced powerful enemies with no allies, and they were dependent on extended and vulnerable transatlantic lines of communication. The defeat heightened dissension and escalated political antagonism to the King's ministers. The King went so far as to draft letters of abdication, although they were never delivered. Inside Parliament, the primary concern changed from fears of an over-mighty monarch to the issues of representation, parliamentary reform, and government retrenchment. Reformers sought to destroy what they saw as widespread institutional corruption, and the result was a crisis from 1776 to 1783. The crisis ended after 1784 confidence in the British constitution was restored during the administration of Prime Minister William Pitt. Finance Britain's war against the Americans, the French, and the Spanish cost about £100 million, and the Treasury borrowed 40 percent of the money that it needed. Meanwhile in Paris, heavy spending and a weak tax base brought France to the verge of bankruptcy and revolution. In London the British had relatively little difficulty financing their war, keeping their suppliers and soldiers paid, and hiring tens of thousands of German soldiers. Britain had a sophisticated financial system based on the wealth of thousands of landowners who supported the government, together with banks and financiers in London. The British tax system collected about 12 percent of the GDP in taxes during the 1770s. In sharp contrast, Congress and the American states had no end of difficulty financing the war. In 1775, there was at most 12 million dollars in gold in the colonies, not nearly enough to cover current transactions, let alone finance a major war. The British made the situation much worse by imposing a tight blockade on every American port, which cut off almost all imports and exports. One partial solution was to rely on volunteer support from militiamen and donations from patriotic citizens. Another was to delay actual payments, pay soldiers and suppliers in depreciated currency, and promise that it would be made good after the war. Indeed, the soldiers and officers were given land grants in 1783 to cover the wages that they had earned but had not been paid during the war. The national government did not have a strong leader in financial matters until 1781, when Robert Morris was named Superintendent of Finance of the United States. Morris used a French loan in 1782 to set up the private Bank of North America to finance the war. He reduced the civil list, saved money by using competitive bidding for contracts, tightened accounting procedures, and demanded the national government's full share of money and supplies from the individual states. Congress used four main methods to cover the cost of the war, which cost about 66 million dollars in specie (gold and silver). Congress made issues of paper money, known colloquially as "Continental Dollars", in 1775–1780 and in 1780–1781. The first issue amounted to 242 million dollars. This paper money would supposedly be redeemed for state taxes, but the holders were eventually paid off in 1791 at the rate of one cent on the dollar. By 1780, the paper money was so devalued that the phrase "not worth a Continental" became synonymous with worthlessness. The skyrocketing inflation was a hardship on the few people who had fixed incomes, but 90 percent of the people were farmers and were not directly affected by it. Debtors benefited by paying off their debts with depreciated paper. The greatest burden was borne by the soldiers of the Continental Army whose wages were usually paid late and declined in value every month, weakening their morale and adding to the hardships of their families. Beginning in 1777, Congress repeatedly asked the states to provide money, but the states had no system of taxation and were of little help. By 1780, Congress was making requisitions for specific supplies of corn, beef, pork, and other necessities, an inefficient system which barely kept the army alive. Starting in 1776, the Congress sought to raise money by loans from wealthy individuals, promising to redeem the bonds after the war. The bonds were redeemed in 1791 at face value, but the scheme raised little money because Americans had little specie, and many of the rich merchants were supporters of the Crown. The French secretly supplied the Americans with money, gunpowder, and munitions to weaken Great Britain; the subsidies continued when France entered the war in 1778, and the French government and Paris bankers lent large sums to the American war effort. The Americans struggled to pay off the loans; they ceased making interest payments to France in 1785 and defaulted on installments due in 1787. In 1790, however, they resumed regular payments on their debts to the French, and settled their accounts with the French government in 1795 when James Swan, an American banker, assumed responsibility for the balance of the debt in exchange for the right to refinance it at a profit. Concluding the Revolution Creating a "more perfect union" and guaranteeing rights The war ended in 1783 and was followed by a period of prosperity. The national government was still operating under the Articles of Confederation and settled the issue of the western territories, which the states ceded to Congress. American settlers moved rapidly into those areas, with Vermont, Kentucky, and Tennessee becoming states in the 1790s. However, the national government had no money either to pay the war debts owed to European nations and the private banks, or to pay Americans who had been given millions of dollars of promissory notes for supplies during the war. Nationalists led by Washington, Alexander Hamilton, and other veterans feared that the new nation was too fragile to withstand an international war, or even the repetition of internal revolts such as the Shays' Rebellion of 1786 in Massachusetts. They convinced Congress to call the Philadelphia Convention in 1787. The Convention adopted a new Constitution which provided for a republic with a much stronger national government in a federal framework, including an effective executive in a check-and-balance system with the judiciary and legislature. The Constitution was ratified in 1788, after a fierce debate in the states over the proposed new government. The new administration under President George Washington took office in New York in March 1789. James Madison spearheaded Congressional legislation proposing amendments to the Constitution as assurances to those cautious about federal power, guaranteeing many of the inalienable rights that formed a foundation for the revolution. Rhode Island was the final state to ratify the Constitution in 1790, the first ten amendments were ratified in 1791 and became known as the United States Bill of Rights. National debt The national debt fell into three categories after the American Revolution. The first was the $12 million owed to foreigners, mostly money borrowed from France. There was general agreement to pay the foreign debts at full value. The national government owed $40 million and state governments owed $25 million to Americans who had sold food, horses, and supplies to the Patriot forces. There were also other debts which consisted of promissory notes issued during the war to soldiers, merchants, and farmers who accepted these payments on the premise that the new Constitution would create a government that would pay these debts eventually. The war expenses of the individual states added up to $114 million, compared to $37 million by the central government. In 1790, Congress combined the remaining state debts with the foreign and domestic debts into one national debt totaling $80 million at the recommendation of first Secretary of the Treasury Alexander Hamilton. Everyone received face value for wartime certificates, so that the national honor would be sustained and the national credit established. Ideology and factions The population of the Thirteen States was not homogeneous in political views and attitudes. Loyalties and allegiances varied widely within regions and communities and even within families, and sometimes shifted during the Revolution. Ideology behind the Revolution The American Enlightenment was a critical precursor of the American Revolution. Chief among the ideas of the American Enlightenment were the concepts of natural law, natural rights, consent of the governed, individualism, property rights, self-ownership, self-determination, liberalism, republicanism, and defense against corruption. A growing number of American colonists embraced these views and fostered an intellectual environment which led to a new sense of political and social identity. Liberalism John Locke (1632–1704) is often referred to as "the philosopher of the American Revolution" due to his work in the Social Contract and Natural Rights theories that underpinned the Revolution's political ideology. Locke's Two Treatises of Government published in 1689 was especially influential. He argued that all humans were created equally free, and governments therefore needed the "consent of the governed". In late eighteenth-century America, belief was still widespread in "equality by creation" and "rights by creation". Locke's ideas on liberty influenced the political thinking of English writers such as John Trenchard, Thomas Gordon, and Benjamin Hoadly, whose political ideas in turn also had a strong influence on the American Patriots. The theory of the social contract influenced the belief among many of the Founders that the right of the people to overthrow their leaders, should those leaders betray the historic rights of Englishmen, was one of the "natural rights" of man. The Americans heavily relied on Montesquieu's analysis of the wisdom of the "balanced" British Constitution (mixed government) in writing the state and national constitutions. Republicanism The most basic features of republicanism anywhere are a representational government in which citizens elect leaders from among themselves for a predefined term, as opposed to a permanent ruling class or aristocracy, and laws are passed by these leaders for the benefit of the entire republic. In addition, unlike a direct or "pure" democracy in which the majority vote rules, a republic codifies in a charter or constitution a certain set of basic civil rights that is guaranteed to every citizen and cannot be overridden by majority rule. The American interpretation of "republicanism" was inspired by the Whig party in Great Britain which openly criticized the corruption within the British government. Americans were increasingly embracing republican values, seeing Britain as corrupt and hostile to American interests. The colonists associated political corruption with ostentatious luxury and inherited aristocracy, which they condemned. The Founding Fathers were strong advocates of republican values, particularly Samuel Adams, Patrick Henry, John Adams, Benjamin Franklin, Thomas Jefferson, Thomas Paine, George Washington, James Madison, and Alexander Hamilton, which required men to put civic duty ahead of their personal desires. Men were honor bound by civic obligation to be prepared and willing to fight for the rights and liberties of their countrymen. John Adams wrote to Mercy Otis Warren in 1776, agreeing with some classical Greek and Roman thinkers: "Public Virtue cannot exist without private, and public Virtue is the only Foundation of Republics." He continued: "Republican motherhood" became the ideal for American women, exemplified by Abigail Adams and Mercy Otis Warren; the first duty of the republican woman was to instill republican values in her children and to avoid luxury and ostentation. Protestant Dissenters and the Great Awakening Protestant churches that had separated from the Church of England, called "dissenters", were the "school of democracy", in the words of historian Patricia Bonomi. Before the Revolution, the Southern Colonies and three of the New England Colonies had official established churches: Congregational in Massachusetts Bay, Connecticut, and New Hampshire, and the Church of England in Maryland, Virginia, North-Carolina, South Carolina, and Georgia. The New York, New Jersey, Pennsylvania, Delaware, and the Colony of Rhode Island and Providence Plantations had no officially established churches. Church membership statistics from the period are unreliable and scarce, but what little data exists indicates that the Church of England was not in the majority, not even in the colonies where the it was the established church, and they probably did not comprise even 30 percent of the population in most localities (with the possible exception of Virginia). John Witherspoon, president of the College of New Jersey (now Princeton University), who was considered a "new light" Presbyterian, wrote widely circulated sermons linking the American Revolution to the teachings of the Bible. Throughout the colonies, dissenting Protestant ministers from the Congregational, Baptist, and Presbyterian churches preached Revolutionary themes in their sermons while most Church of England clergymen preached loyalty to the king, the titular head of the English state church. Religious motivation for fighting tyranny transcended socioeconomic lines to encompass rich and poor, men and women, frontierspeople and townspeople, farmers and merchants. The Declaration of Independence also referred to the "Laws of Nature and of Nature's God" as justification for the Americans' separation from the British monarchy. Most eighteenth-century Americans believed that the entire universe ("nature") was God's creation and he was "Nature's God". Everything was part of the "universal order of things" which began with God and was directed by his providence. Accordingly, the signers of the Declaration professed their "firm reliance on the Protection of divine Providence", and they appealed to "the Supreme Judge for the rectitude of our intentions". George Washington was firmly convinced that he was an instrument of providence, to the benefit of the American people and of all humanity. Historian Bernard Bailyn argues that the evangelicalism of the era challenged traditional notions of natural hierarchy by preaching that the Bible teaches that all men are equal, so that the true value of a man lies in his moral behavior, not in his class. Kidd argues that religious disestablishment, belief in God as the source of human rights, and shared convictions about sin, virtue, and divine providence worked together to unite rationalists and evangelicals and thus encouraged a large proportion of Americans to fight for independence from the Empire. Bailyn, on the other hand, denies that religion played such a critical role. Alan Heimert argues that New Light anti-authoritarianism was essential to furthering democracy in colonial American society, and set the stage for a confrontation with British monarchical and aristocratic rule. Class and psychology of the factions John Adams concluded in 1818: In the mid-20th century, historian Leonard Woods Labaree identified eight characteristics of the Loyalists that made them essentially conservative, opposite to the characteristics of the Patriots. Loyalists tended to feel that resistance to the Crown was morally wrong, while the Patriots thought that morality was on their side. Loyalists were alienated when the Patriots resorted to violence, such as burning houses and tarring and feathering. Loyalists wanted to take a centrist position and resisted the Patriots' demand to declare their opposition to the Crown. Many Loyalists had maintained strong and long-standing relations with Britain, especially merchants in port cities such as New York and Boston. Many Loyalists felt that independence was bound to come eventually, but they were fearful that revolution might lead to anarchy, tyranny, or mob rule. In contrast, the prevailing attitude among Patriots was a desire to seize the initiative. Labaree also wrote that Loyalists were pessimists who lacked the confidence in the future displayed by the Patriots. Historians in the early 20th century such as J. Franklin Jameson examined the class composition of the Patriot cause, looking for evidence of a class war inside the revolution. More recent historians have largely abandoned that interpretation, emphasizing instead the high level of ideological unity. Both Loyalists and Patriots were a "mixed lot", but ideological demands always came first. The Patriots viewed independence as a means to gain freedom from British oppression and to reassert their basic rights. Most yeomen farmers, craftsmen, and small merchants joined the Patriot cause to demand more political equality. They were especially successful in Pennsylvania but less so in New England, where John Adams attacked Thomas Paine's Common Sense for the "absurd democratical notions" that it proposed. King George III The revolution became a personal issue for the king, fueled by his growing belief that British leniency would be taken as weakness by the Americans. He also sincerely believed that he was defending Britain's constitution against usurpers, rather than opposing patriots fighting for their natural rights. Although Prime Minister Lord North was not an ideal war leader, George III managed to give Parliament a sense of purpose to fight, and Lord North was able to keep his cabinet together. Lord North's cabinet ministers, the Earl of Sandwich, First Lord of the Admiralty, and Lord George Germain, Secretary of State for the Colonies, however, proved to lack leadership skills suited for their positions, which in turn, aided the American revolutionaries. King George III is often accused of obstinately trying to keep Great Britain at war with the revolutionaries in America, despite the opinions of his own ministers. In the words of the British historian George Otto Trevelyan, the King was determined "never to acknowledge the independence of the Americans, and to punish their contumacy by the indefinite prolongation of a war which promised to be eternal." The king wanted to "keep the rebels harassed, anxious, and poor, until the day when, by a natural and inevitable process, discontent and disappointment were converted into penitence and remorse". Later historians defend George by saying in the context of the times no king would willingly surrender such a large territory, and his conduct was far less ruthless than contemporary monarchs in Europe. After the surrender of a British army at Saratoga, both Parliament and the British people were largely in favor of the war; recruitment ran at high levels and although political opponents were vocal, they remained a small minority. With the setbacks in America, Lord North asked to transfer power to Lord Chatham, whom he thought more capable, but George refused to do so; he suggested instead that Chatham serve as a subordinate minister in North's administration, but Chatham refused. He died later in the same year. Lord North was allied to the "King's Friends" in Parliament and believed George III had the right to exercise powers. In early 1778, Britain's chief rival France signed a treaty of alliance with the United States, and the confrontation soon escalated from a "rebellion" to something that has been characterized as "world war". The French fleet was able to outrun the British naval blockade of the Mediterranean and sailed to North America. The conflict now affected North America, Europe and India. The United States and France were joined by Spain in 1779 and the Dutch Republic, while Britain had no major allies of its own, except for the Loyalist minority in America and German auxiliaries (i.e. Hessians). Lord Gower and Lord Weymouth both resigned from the government. Lord North again requested that he also be allowed to resign, but he stayed in office at George III's insistence. Opposition to the costly war was increasing, and in June 1780 contributed to disturbances in London known as the Gordon riots. As late as the Siege of Charleston in 1780, Loyalists could still believe in their eventual victory, as British troops inflicted defeats on the Continental forces at the Battle of Camden and the Battle of Guilford Court House. In late 1781, the news of Cornwallis's surrender at the siege of Yorktown reached London; Lord North's parliamentary support ebbed away and he resigned the following year. The king drafted an abdication notice, which was never delivered, finally accepted the defeat in North America, and authorized peace negotiations. The Treaties of Paris, by which Britain recognized the independence of the United States and returned Florida to Spain, were signed in 1782 and 1783 respectively. In early 1783, George III privately conceded "America is lost!" He reflected that the Northern colonies had developed into Britain's "successful rivals" in commercial trade and fishing. When John Adams was appointed American Minister to London in 1785, George had become resigned to the new relationship between his country and the former colonies. He told Adams, "I was the last to consent to the separation; but the separation having been made and having become inevitable, I have always said, as I say now, that I would be the first to meet the friendship of the United States as an independent power." Patriots Those who fought for independence were called "Revolutionaries" "Continentals", "Rebels", "Patriots", "Whigs", "Congress-men", or "Americans" during and after the war. They included a full range of social and economic classes but were unanimous regarding the need to defend the rights of Americans and uphold the principles of republicanism in rejecting monarchy and aristocracy, while emphasizing civic virtue by citizens. The signers of the Declaration of Independence were mostly—with definite exceptions—well-educated, of British stock, and of the Protestant faith. Newspapers were strongholds of patriotism (although there were a few Loyalist papers) and printed many pamphlets, announcements, patriotic letters, and pronouncements. According to historian Robert Calhoon, 40 to 45 percent of the white population in the Thirteen Colonies supported the Patriots' cause, 15 to 20 percent supported the Loyalists, and the remainder were neutral or kept a low profile. Mark Lender analyzes why ordinary people became insurgents against the British, even if they were unfamiliar with the ideological reasons behind the war. He concludes that such people held a sense of rights which the British were violating, rights that stressed local autonomy, fair dealing, and government by consent. They were highly sensitive to the issue of tyranny, which they saw manifested in the British response to the Boston Tea Party. The arrival in Boston of the British Army heightened their sense of violated rights, leading to rage and demands for revenge. They had faith that God was on their side. Thomas Paine published his pamphlet Common Sense in January 1776, after the Revolution had started. It was widely distributed and often read aloud in taverns, contributing significantly to concurrently spreading the ideas of republicanism and liberalism, bolstering enthusiasm for separation from Great Britain and encouraging recruitment for the Continental Army. Paine presented the Revolution as the solution for Americans alarmed by the threat of tyranny. Loyalists The consensus of scholars is that about 15 to 20 percent of the white population remained loyal to the British Crown. Those who actively supported the king were known at the time as "Loyalists", "Tories", or "King's men". The Loyalists never controlled territory unless the British Army occupied it. They were typically older, less willing to break with old loyalties, and often connected to the Church of England; they included many established merchants with strong business connections throughout the Empire, as well as royal officials such as Thomas Hutchinson of Boston. There were 500 to 1,000 Black Loyalists, enslaved African Americans who escaped to British lines and supported Britain's cause via several means. Many of them died from various diseases, but the survivors were evacuated by the British to their remaining colonies in North America. The revolution could divide families, such as William Franklin, son of Benjamin Franklin and royal governor of the Province of New Jersey who remained loyal to the Crown throughout the war. He and his father never spoke again. Recent immigrants who had not been fully Americanized were also inclined to support the King, such as Flora MacDonald, a Scottish settler in the backcountry. After the war, the great majority of the half-million Loyalists remained in America and resumed normal lives. Some became prominent American leaders, such as Samuel Seabury. Approximately 46,000 Loyalists relocated to Canada; others moved to Britain (7,000), Florida, or the West Indies (9,000). The exiles represented approximately two percent of the total population of the colonies. Nearly all black loyalists left for Nova Scotia, Florida, or England, where they could remain free. Loyalists who left the South in 1783 took thousands of their slaves with them as they fled to the British West Indies. Neutrals A minority of uncertain size tried to stay neutral in the war. Most kept a low profile, but the Quakers were the most important group to speak out for neutrality, especially in Pennsylvania. The Quakers continued to do business with the British even after the war began, and they were accused of supporting British rule, "contrivers and authors of seditious publications" critical of the revolutionary cause. Most Quakers remained neutral, although a sizeable number nevertheless participated to some degree. Role of women Women contributed to the American Revolution in many ways and were involved on both sides. Formal politics did not include women, but ordinary domestic behaviors became charged with political significance as Patriot women confronted a war which permeated all aspects of political, civil, and domestic life. They participated by boycotting British goods, spying on the British, following armies as they marched, washing, cooking, and mending for soldiers, delivering secret messages, and even fighting disguised as men in a few cases, such as Deborah Samson. Mercy Otis Warren held meetings in her house and cleverly attacked Loyalists with her creative plays and histories. Many women also acted as nurses and helpers, tending to the soldiers' wounds and buying and selling goods for them. Some of these camp followers even participated in combat, such as Madam John Turchin who led her husband's regiment into battle. Above all, women continued the agricultural work at home to feed their families and the armies. They maintained their families during their husbands' absences and sometimes after their deaths. American women were integral to the success of the boycott of British goods, as the boycotted items were largely household articles such as tea and cloth. Women had to return to knitting goods and to spinning and weaving their own cloth—skills that had fallen into disuse. In 1769, the women of Boston produced 40,000 skeins of yarn, and 180 women in Middletown, Massachusetts wove of cloth. Many women gathered food, money, clothes, and other supplies during the war to help the soldiers. A woman's loyalty to her husband could become an open political act, especially for women in America committed to men who remained loyal to the King. Legal divorce, usually rare, was granted to Patriot women whose husbands supported the King. Other participants France and Spain In early 1776, France set up a major program of aid to the Americans, and the Spanish secretly added funds. Each country spent one million "livres tournaises" to buy munitions. A dummy corporation run by Pierre Beaumarchais concealed their activities. American Patriots obtained some munitions from the Dutch Republic as well, through the French and Spanish ports in the West Indies. Heavy expenditures and a weak taxation system pushed France toward bankruptcy. In 1777, Charles François Adrien le Paulmier, Chevalier d'Annemours, acting as a secret agent for France, made sure General George Washington was privy to his mission. He followed Congress around for the next two years, reporting what he observed back to France. The Treaty of Alliance between the French and the Americans followed in 1778, which led to more French money, matériel and troops being sent to the United States. Spain did not officially recognize the United States, but it was a French ally and it separately declared war on Britain on June 21, 1779. Bernardo de Gálvez, general of the Spanish forces in New Spain, also served as governor of Louisiana. He led an expedition of colonial troops to capture Florida from the British and to keep open a vital conduit for supplies. Germans Ethnic Germans served on both sides of the American Revolutionary War. As George III was also the Elector of Hanover, many supported the Loyalist cause and served as allies of the Kingdom of Great Britain; most notably rented auxiliary troops from German states such as the Landgraviate of Hessen-Kassel. American Patriots tended to represent such troops as mercenaries in propaganda against the British Crown. Even American historians followed suit, in spite of Colonial-era jurists drawing a distinction between auxiliaries and mercenaries, with auxiliaries serving their prince when sent to the aid of another prince, and mercenaries serving a foreign prince as individuals. By this distinction the troops which served in the American Revolution were auxiliaries. Other German individuals came to assist the American revolutionaries, most notably Friedrich Wilhelm von Steuben, who served as a general in the Continental Army and is credited with professionalizing that force, but most Germans who served were already colonists. Von Steuben's native Prussia joined the League of Armed Neutrality, and King Frederick II of Prussia was well appreciated in the United States for his support early in the war. He expressed interest in opening trade with the United States and bypassing English ports, and allowed an American agent to buy arms in Prussia. Frederick predicted American success, and promised to recognize the United States and American diplomats once France did the same. Prussia also interfered in the recruiting efforts of Russia and neighboring German states when they raised armies to send to the Americas, and Frederick II forbade enlistment for the American war within Prussia. All Prussian roads were denied to troops from Anhalt-Zerbst, which delayed reinforcements that Howe had hoped to receive during the winter of 1777–1778. However, when the War of the Bavarian Succession (1778-1779) erupted, Frederick II became much more cautious with Prussian/British relations. U.S. ships were denied access to Prussian ports, and Frederick refused to officially recognize the United States until they had signed the Treaty of Paris. Even after the war, Frederick II predicted that the United States was too large to operate as a republic, and that it would soon rejoin the British Empire with representatives in Parliament. Native Americans Most indigenous people rejected pleas that they remain neutral and instead supported the British Crown. The great majority of the 200,000 indigenous people east of the Mississippi distrusted the Americans and supported the British cause, hoping to forestall continued expansion of settlement into their territories. Those tribes closely involved in trade tended to side with the Patriots, although political factors were important as well. Some indigenous people tried to remain neutral, seeing little value in joining what they perceived to be a "white man's war", and fearing reprisals from whichever side they opposed. The great majority of indigenous people did not participate directly in the war, with the notable exceptions of warriors and bands associated with four of the Iroquois tribes in New York and Pennsylvania which allied with the British, and the Oneida and Tuscarora tribes among the Iroquois of central and western New York who supported the American cause. The British did have other allies, particularly in the regions of southwest Quebec on the Patriot's frontier. The British provided arms to indigenous people who were led by Loyalists in war parties to raid frontier settlements from the Carolinas to New York. These war parties managed to kill many settlers on the frontier, especially in Pennsylvania and New York's Mohawk Valley. In 1776, Cherokee war parties attacked American Colonists all along the southern Quebec frontier of the uplands throughout the Washington District, North Carolina (now Tennessee) and the Kentucky wilderness area. The Chickamauga Cherokee under Dragging Canoe allied themselves closely with the British, and fought on for an additional decade after the Treaty of Paris was signed. They would launch raids with roughly 200 warriors, as seen in the Cherokee–American wars; they could not mobilize enough forces to invade settler areas without the help of allies, most often the Creek. Joseph Brant (also Thayendanegea) of the powerful Mohawk tribe in New York was the most prominent indigenous leader against the Patriot forces. In 1778 and 1780, he led 300 Iroquois warriors and 100 white Loyalists in multiple attacks on small frontier settlements in New York and Pennsylvania, killing many settlers and destroying villages, crops, and stores. In 1779, the Continental Army forced the hostile indigenous people out of upstate New York when Washington sent an army under John Sullivan which destroyed 40 evacuated Iroquois villages in central and western New York. Sullivan systematically burned the empty villages and destroyed about 160,000 bushels of corn that composed the winter food supply. The Battle of Newtown proved decisive, as the Patriots had an advantage of three-to-one, and it ended significant resistance; there was little combat otherwise. Facing starvation and homeless for the winter, the Iroquois fled to Canada. The British resettled them in Ontario, providing land grants as compensation for some of their losses. At the peace conference following the war, the British ceded lands which they did not really control, and which they did not consult about with their indigenous allies during the treaty negotiations. They transferred control to the United States of all the land south of the Great Lakes east of the Mississippi and north of Florida. Calloway concludes: The British did not give up their forts until 1796 in the Ohio country and Illinois country; they kept alive the dream of forming an allied indigenous nation there, which they referred to an "Indian barrier state". That goal was one of the causes of the War of 1812. Black Americans Free blacks in the New England Colonies and Middle Colonies in the North as well as Southern Colonies fought on both sides of the War, but the majority fought for the Patriots. Gary Nash reports that there were about 9,000 black veteran Patriots, counting the Continental Army and Navy, state militia units, privateers, wagoneers in the Army, servants to officers, and spies. Ray Raphael notes that thousands did join the Loyalist cause, but "a far larger number, free as well as slave, tried to further their interests by siding with the patriots." Crispus Attucks was one of the five people killed in the Boston Massacre in 1770 and is considered the first American casualty for the cause of independence. The effects of the war were more dramatic in the South. Tens of thousands of slaves escaped to British lines throughout the South, causing dramatic losses to slaveholders and disrupting cultivation and harvesting of crops. For instance, South Carolina was estimated to have lost about 25,000 slaves to flight, migration, or death which amounted to a third of its slave population. From 1770 to 1790, the black proportion of the population (mostly slaves) in South Carolina dropped from 60.5 percent to 43.8 percent, and from 45.2 percent to 36.1 percent in Georgia. During the war, the British commanders attempted to weaken the Patriots by issuing proclamations of freedom to their slaves. In the November 1775 document known as Dunmore's Proclamation Virginia royal governor, Lord Dunmore recruited black men into the British forces with the promise of freedom, protection for their families, and land grants. Some men responded and briefly formed the British Ethiopian Regiment. Historian David Brion Davis explains the difficulties with a policy of wholesale arming of the slaves: Davis underscores the British dilemma: "Britain, when confronted by the rebellious American colonists, hoped to exploit their fear of slave revolts while also reassuring the large number of slave-holding Loyalists and wealthy Caribbean planters and merchants that their slave property would be secure". The Americans, however, accused the British of encouraging slave revolts, with the issue becoming one of the 27 colonial grievances. The existence of slavery in the American colonies had attracted criticism from both sides of the Atlantic as many could not reconcile the existence of the institution with the egalitarian ideals espoused by leaders of the Revolution. British writer Samuel Johnson wrote "how is it we hear the loudest yelps for liberty among the drivers of the Negroes?" in a text opposing the grievances of the colonists. Referring to this contradiction, English abolitionist Thomas Day wrote in a 1776 letter that African American writer Lemuel Haynes expressed similar viewpoints in his essay Liberty Further Extended where he wrote that "Liberty is Equally as pre[c]ious to a Black man, as it is to a white one". Thomas Jefferson unsuccessfully attempted to include a section in the Declaration of Independence which asserted that King George III had "forced" the slave trade onto the colonies. Despite the turmoil of the period, African-Americans contributed to the foundation of an American national identity during the Revolution. Phyllis Wheatley, an African-American poet, popularized the image of Columbia to represent America. She came to public attention when her Poems on Various Subjects, Religious and Moral appeared in 1773, and received praise from George Washington. The 1779 Philipsburg Proclamation expanded the promise of freedom for black men who enlisted in the British military to all the colonies in rebellion. British forces gave transportation to 10,000 slaves when they evacuated Savannah and Charleston, carrying through on their promise. They evacuated and resettled more than 3,000 Black Loyalists from New York to Nova Scotia, Upper Canada, and Lower Canada. Others sailed with the British to England or were resettled as freedmen in the West Indies of the Caribbean. But slaves carried to the Caribbean under control of Loyalist masters generally remained slaves until British abolition of slavery in its colonies in 1833–1838. More than 1,200 of the Black Loyalists of Nova Scotia later resettled in the British colony of Sierra Leone, where they became leaders of the Krio ethnic group of Freetown and the later national government. Many of their descendants still live in Sierra Leone, as well as other African countries. Effects of the Revolution After the Revolution, genuinely democratic politics became possible in the former American colonies. The rights of the people were incorporated into state constitutions. Concepts of liberty, individual rights, equality among men and hostility toward corruption became incorporated as core values of liberal republicanism. The greatest challenge to the old order in Europe was the challenge to inherited political power and the democratic idea that government rests on the consent of the governed. The example of the first successful revolution against a European empire, and the first successful establishment of a republican form of democratically elected government, provided a model for many other colonial peoples who realized that they too could break away and become self-governing nations with directly elected representative government. Interpretations Interpretations vary concerning the effect of the Revolution. Historians such as Bernard Bailyn, Gordon Wood, and Edmund Morgan view it as a unique and radical event which produced deep changes and had a profound effect on world affairs, such as an increasing belief in the principles of the Enlightenment. These were demonstrated by a leadership and government that espoused protection of natural rights, and a system of laws chosen by the people. John Murrin, by contrast, argues that the definition of "the people" at that time was mostly restricted to free men who passed a property qualification. This view argues that any significant gain of the revolution was irrelevant in the short term to women, black Americans and slaves, poor white men, youth, and Native Americans. Gordon Wood states: The American Revolution was integral to the changes occurring in American society, politics and culture .... These changes were radical, and they were extensive .... The Revolution not only radically changed the personal and social relationships of people, including the position of women, but also destroyed aristocracy as it'd been understood in the Western world for at least two millennia. Edmund Morgan has argued that, in terms of long-term impact on American society and values: The Revolution did revolutionize social relations. It did displace the deference, the patronage, the social divisions that had determined the way people viewed one another for centuries and still view one another in much of the world. It did give to ordinary people a pride and power, not to say an arrogance, that have continued to shock visitors from less favored lands. It may have left standing a host of inequalities that have troubled us ever since. But it generated the egalitarian view of human society that makes them troubling and makes our world so different from the one in which the revolutionists had grown up. Inspiring other independence movements and revolutions The first shot of the American Revolution at the Battle of Lexington and Concord is referred to as the "shot heard 'round the world" due to its historical and global significance. The Revolutionary War victory not only established the United States as the first modern constitutional republic, but marked the transition from an age of monarchy to a new age of freedom by inspiring similar movements worldwide. The American Revolution was the first of the "Atlantic Revolutions": followed most notably by the French Revolution, the Haitian Revolution, and the Latin American wars of independence. Aftershocks contributed to rebellions in Ireland, the Polish–Lithuanian Commonwealth, and the Netherlands. The U.S. Constitution, drafted shortly after independence, remains the world's oldest written constitution, and has been emulated by other countries, in some cases verbatim. Some historians and scholars argue that the subsequent wave of independence and revolutionary movements has contributed to the continued expansion of democratic government; 144 countries, representing two-third of the world's population, are full or partially democracies of same form. The Dutch Republic, also at war with Britain, was the next country after France to sign a treaty with the United States, on October 8, 1782. On April 3, 1783, Ambassador Extraordinary Gustaf Philip Creutz, representing King Gustav III of Sweden, and Benjamin Franklin, signed a Treaty of Amity and Commerce with the U.S. The Revolution had a strong, immediate influence in Great Britain, Ireland, the Netherlands, and France. Many British and Irish Whigs in Parliament spoke glowingly in favor of the American cause. In Ireland, the Protestant minority who controlled Ireland demanded self-rule. Under the leadership of Henry Grattan, the Irish Patriot Party forced the reversal of mercantilist prohibitions against trade with other British colonies. The King and his cabinet in London could not risk another rebellion on the American model, and so made a series of concessions to the Patriot faction in Dublin. Armed volunteer units of the Protestant Ascendancy were set up ostensibly to protect against an invasion from France. As had been in colonial America, so too in Ireland now the King no longer had a monopoly of lethal force. For many Europeans, such as the Marquis de Lafayette, who later were active during the era of the French Revolution, the American case along with the Dutch Revolt (end of the 16th century) and the 17th century English Civil War, was among the examples of overthrowing an old regime. The American Declaration of Independence influenced the French Declaration of the Rights of Man and of the Citizen of 1789. The spirit of the Declaration of Independence led to laws ending slavery in all the Northern states and the Northwest Territory, with New Jersey the last in 1804. States such as New Jersey and New York adopted gradual emancipation, which kept some people as slaves for more than two decades longer. Status of African Americans During the revolution, the contradiction between the Patriots' professed ideals of liberty and the institution of slavery generated increased scrutiny of the latter. As early as 1764, the Boston Patriot leader James Otis, Jr. declared that all men, "white or black", were "by the law of nature" born free. Anti-slavery calls became more common in the early 1770s. In 1773, Benjamin Rush, the future signer of the Declaration of Independence, called on "advocates for American liberty" to oppose slavery, writing, "The plant of liberty is of so tender a nature that it cannot thrive long in the neighborhood of slavery.". The contradiction between calls for liberty and the continued existence of slavery also opened up the Patriots to charges of hypocrisy. In 1775, the English Tory writer Samuel Johnson asked, "How is it that we hear the loudest yelps for liberty among the drivers of negroes?" In the late 1760s and early 1770s, several colonies, including Massachusetts and Virginia, attempted to restrict the slave trade, but were prevented from doing so by royally appointed governors. In 1774, as part of a broader non-importation movement aimed at Britain, the Continental Congress called on all the colonies to ban the importation of slaves, and the colonies passed acts doing so. In 1775, the Quakers founded first antislavery society in the Western world, the Pennsylvania Abolition Society. In the first two decades after the American Revolution, state legislatures and individuals took actions to free slaves, in part based on revolutionary ideals. Northern states passed new constitutions that contained language about equal rights or specifically abolished slavery; some states, such as New York and New Jersey, where slavery was more widespread, passed laws by the end of the 18th century to abolish slavery by a gradual method. By 1804, all the northern states had passed laws outlawing slavery, either immediately or over time. In New York, the last slaves were freed in 1827. Indentured servitude (temporary slavery), which had been widespread in the colonies (half the population of Philadelphia had once been bonded servants) dropped dramatically, and disappeared by 1800. No southern state abolished slavery, but for a period individual owners could free their slaves by personal decision, often providing for manumission in wills but sometimes filing deeds or court papers to free individuals. Numerous slaveholders who freed their slaves cited revolutionary ideals in their documents; others freed slaves as a reward for service. Records also suggest that some slaveholders were freeing their own mixed-race children, born into slavery to slave mothers. The number of free blacks as a proportion of the black population in the upper South increased from less than 1 percent to nearly 10 percent between 1790 and 1810 as a result of these actions. Nevertheless, slavery continued in the South, where it became a "peculiar institution", setting the stage for future sectional conflict between North and South over the issue. Thousands of free Blacks in the northern states fought in the state militias and Continental Army. In the south, both sides offered freedom to slaves who would perform military service. Roughly 20,000 slaves fought in the American Revolution. Status of American women The democratic ideals of the Revolution inspired changes in the roles of women. The concept of republican motherhood was inspired by this period and reflects the importance of revolutionary republicanism as the dominant American ideology. It assumed that a successful republic rested upon the virtue of its citizens. Women were considered to have the essential role of instilling their children with values conducive to a healthy republic. During this period, the wife's relationship with her husband also became more liberal, as love and affection instead of obedience and subservience began to characterize the ideal marital relationship. In addition, many women contributed to the war effort through fundraising and running family businesses without their husbands. The traditional constraints gave way to more liberal conditions for women. Young people had more freedom to choose their spouses and more often used birth control to regulate the size of their families. Society emphasized the role of mothers in child rearing, especially the patriotic goal of raising republican children rather than those locked into aristocratic value systems. There was more permissiveness in child-rearing. Patriot women married to Loyalists who left the state could get a divorce and obtain control of the ex-husband's property. Whatever gains they had made, however, women still found themselves subordinated, legally and socially, to their husbands, disfranchised and usually with only the role of mother open to them. But, some women earned livelihoods as midwives and in other roles in the community not originally recognized as significant by men. Abigail Adams expressed to her husband, the president, the desire of women to have a place in the new republic: The Revolution sparked a discussion on the rights of woman and an environment favorable to women's participation in politics. Briefly the possibilities for women's rights were highly favorable, but a backlash led to a greater rigidity that excluded women from politics. For more than thirty years, however, the 1776 New Jersey State Constitution gave the vote to "all inhabitants" who had a certain level of wealth, including unmarried women and blacks (not married women because they could not own property separately from their husbands), until in 1807, when that state legislature passed a bill interpreting the constitution to mean universal white male suffrage, excluding paupers. Loyalist expatriation Tens of thousands of Loyalists left the United States following the war, and Maya Jasanoff estimates as many as 70,000. Some migrated to Britain, but the great majority received land and subsidies for resettlement in British colonies in North America, especially Quebec (concentrating in the Eastern Townships), Prince Edward Island, and Nova Scotia. Britain created the colonies of Upper Canada (Ontario) and New Brunswick expressly for their benefit, and the Crown awarded land to Loyalists as compensation for losses in the United States. Nevertheless, approximately eighty-five percent of the Loyalists stayed in the United States as American citizens, and some of the exiles later returned to the U.S. Patrick Henry spoke of the issue of allowing Loyalists to return as such: "Shall we, who have laid the proud British lion at our feet, be frightened of its whelps?" His actions helped secure return of the Loyalists to American soil. Commemorations The American Revolution has a central place in the American memory as the story of the nation's founding. It is covered in the schools, memorialized by two national holidays, Washington's Birthday in February and Independence Day in July, and commemorated in innumerable monuments. George Washington's estate at Mount Vernon was one of the first national pilgrimages for tourists and attracted 10,000 visitors a year by the 1850s. The Revolution became a matter of contention in the 1850s in the debates leading to the American Civil War (1861–1865), as spokesmen of both the Northern United States and the Southern United States claimed that their region was the true custodian of the legacy of 1776. The United States Bicentennial in 1976 came a year after the American withdrawal from the Vietnam War, and speakers stressed the themes of renewal and rebirth based on a restoration of traditional values. Today, more than 100 battlefields and historic sites of the American Revolution are protected and maintained by the government. The National Park Service alone manages and maintains more than 50 battlefield parks and many other sites such as Independence Hall that are related to the Revolution, as well as the residences, workplaces and meeting places of many Founders and other important figures. The private American Battlefield Trust uses government grants and other funds to preserve almost 700 acres of battlefield land in six states, and the ambitious private recreation/restoration/preservation/interpretation of over 300 acres of pre-1790 Colonial Williamsburg was created in the first half of the 20th century for public visitation. See also List of films about the American Revolution List of George Washington articles List of television series and miniseries about the American Revolution Museum of the American Revolution Notes References General sources Bibliography Reference works Barnes, Ian, and Charles Royster. The Historical Atlas of the American Revolution (2000), maps and commentary excerpt and text search Herrera, Ricardo A. "American War of Independence" Oxford Bibliographies (2017) annotated guide to major scholarly books and articles online Kennedy, Frances H. The American Revolution: A Historical Guidebook (2014) A guide to 150 famous historical sites. Purcell, L. Edward. Who Was Who in the American Revolution (1993); 1500 short biographies Surveys of the era Alden, John R. A history of the American Revolution (1966) 644 pp online free to borrow, A scholarly general survey Allison, Robert. The American Revolution: A Concise History (2011) 128 pp excerpt and text search Atkinson, Rick. The British Are Coming: The War for America, Lexington to Princeton, 1775–1777 (2019) (vol 1 of his 'The Revolution Trilogy'); called, "one of the best books written on the American War for Independence," [Journal of Military History Jan 2020 p. 268]; the maps are online here Bancroft, George. History of the United States of America, from the discovery of the American continent. (1854–78), vol 4–10 online edition, classic 19th century narrative; highly detailed Brown, Richard D., and Thomas Paterson, eds. Major Problems in the Era of the American Revolution, 1760–1791: Documents and Essays (2nd ed. 1999) Cogliano, Francis D. Revolutionary America, 1763–1815; A Political History (2nd ed. 2008), British textbook Ellis, Joseph J. American Creation: Triumphs and Tragedies in the Founding of the Republic (2008) excerpt and text search Higginbotham, Don. The War of American Independence: Military Attitudes, Policies, and Practice, 1763–1789 (1983) Online in ACLS Humanities E-book Project; comprehensive coverage of military and domestic aspects of the war. Lecky, William Edward Hartpole. The American Revolution, 1763–1783 (1898), older British perspective online edition Mackesy, Piers. The War for America: 1775–1783 (1992), British military study Middlekauff, Robert. The Glorious Cause: The American Revolution, 1763–1789 (Oxford History of the United States, 2005). Miller, John C. Triumph of Freedom, 1775–1783 (1948) Miller, John C. Origins of the American Revolution (1943), to 1775 Rakove, Jack N. Revolutionaries: A New History of the Invention of America (2010) interpretation by leading scholar excerpt and text search Taylor, Alan. American Revolutions: A Continental History, 1750–1804 (2016) 704 pp; recent survey by leading scholar Weintraub, Stanley. Iron Tears: Rebellion in America 1775–83 (2005) excerpt and text search, popular Wrong, George M. Washington and His Comrades in Arms: A Chronicle of the War of Independence (1921) online short survey by Canadian scholar online Specialized studies Baer, Friederike. Hessians: German Soldiers in the American Revolutionary War (Oxford University Press, 2022). Publisher's website. Bailyn, Bernard. The Ideological Origins of the American Revolution. (Harvard University Press, 1967). Becker, Frank: The American Revolution as a European Media Event, European History Online, Mainz: Institute of European History, 2011, retrieved: October 25, 2011. Fischer, David Hackett. Washington's Crossing (2004). 1776 campaigns; Pulitzer prize. Horne, Gerald. The Counter-Revolution of 1776: Slave Resistance and the Origins of the United States of America. (New York University Press, 2014). Langley, Lester D. The Long American Revolution and Its Legacy(U of Georgia Press, 2019) online review emphasis on long-term global impact. McCullough, David. 1776 (2005). ; popular narrative of the year 1776 Maier, Pauline. American Scripture: Making the Declaration of Independence (1998) excerpt and text search Nash, Gary B. The Unknown American Revolution: The Unruly Birth of Democracy and the Struggle to Create America. (2005). Nevins, Allan; The American States during and after the Revolution, 1775–1789 1927. online edition Norton, Mary Beth. 1774: The Long Year of Revolution (2020) online review by Gordon S. Wood < Palmer, Robert R. The Age of the Democratic Revolution: A Political History of Europe and America, 1760–1800. vol 1 (1959) Rothbard, Murray, Conceived in Liberty (2011), Volume III: Advance to Revolution, 1760–1775 and Volume IV: The Revolutionary War, 1775–1784. , libertarian perspective Van Tyne, Claude Halstead. American Loyalists: The Loyalists in the American Revolution (1902) online edition Volo, James M. and Dorothy Denneen Volo. Daily Life during the American Revolution (2003) Wahlke, John C. ed. The Causes of the American Revolution (1967) primary and secondary readings online Wood, Gordon S. American Revolution (2005) [excerpt and text search] 208 pp excerpt and text search Historiography Allison, David, and Larrie D. Ferreiro, eds. The American Revolution: A World War (Smithsonian, 2018) excerpt Breen, Timothy H. "Ideology and nationalism on the eve of the American Revolution: Revisions once more in need of revising." Journal of American History (1997): 13–39. in JSTOR Countrymen, Edward. "Historiography" in Harold E. Selesky, ed., Encyclopedia of the American Revolution (Gale, 2006) pp. 501–508. Gibson, Alan. Interpreting the Founding: Guide to the Enduring Debates over the Origins and Foundations of the American Republic (2006). Hattem, Michael D. "The Historiography of the American Revolution" Journal of the American Revolution (2013) online outlines ten different scholarly approaches Morgan, Gwenda. The Debate on the American Revolution (2007). Manchester University Press. Schocket, Andrew M. Fighting over the Founders: How We Remember the American Revolution (2014). . How politicians, screenwriters, activists, biographers, museum professionals, and re-enactors portray the American Revolution. excerpt Sehat, David. The Jefferson Rule: How the Founding Fathers Became Infallible and Our Politics Inflexible (2015). excerpt Shalhope, Robert E. "Toward a republican synthesis: the emergence of an understanding of republicanism in American historiography." William and Mary Quarterly (1972): 49–80. in JSTOR Waldstreicher, David. "The Revolutions of Revolution Historiography: Cold War Contradance, Neo-Imperial Waltz, or Jazz Standard?" Reviews in American History 42.1 (2014): 23–35. online Wood, Gordon S. "Rhetoric and Reality in the American Revolution." William and Mary Quarterly (1966): 4–32. in JSTOR Young, Alfred F. and Gregory H. Nobles. Whose American Revolution Was It? Historians Interpret the Founding (2011). NYU Press. Primary sources The American Revolution: Writings from the War of Independence (2001), Library of America Dann, John C., ed. The Revolution Remembered: Eyewitness Accounts of the War for Independence (1999). . excerpt and text search, recollections by ordinary soldiers Humphrey, Carol Sue, ed. The Revolutionary Era: Primary Documents on Events from 1776 to 1800 (2003), Greenwood Press. , Newspaper accounts excerpt and text search Jensen, Merill, ed. Tracts of the American Revolution, 1763–1776 (1967). American pamphlets Jensen, Merill, ed. English Historical Documents: American Colonial Documents to 1776: Volume 9 (1955), 890pp; major collection of important documents Morison, Samuel E. ed. Sources and Documents Illustrating the American Revolution, 1764–1788, and the Formation of the Federal Constitution (1923). . Tansill, Charles C. ed.; Documents Illustrative of the Formation of the Union of the American States. (1927). Government Printing Office. . Martin Kallich and Andrew MacLeish, eds. The American Revolution through British eyes (1962) primary documents Contemporaneous sources: Annual Register Murdoch, David H. ed. Rebellion in America: A Contemporary British Viewpoint, 1769–1783 (1979), 900+ pp of annotated excerpts from Annual Register Annual Register 1773, British compendium of speeches and reports Annual Register 1774 Annual Register 1775 Annual Register 1776 Annual Register 1777 Annual Register 1778 Annual Register 1779 Annual Register 1780 Annual Register 1781 Annual Register 1782 Annual Register 1783 External links American Revolution, US National Park Service website portal ''American Independence Teaching with Historic Places uses historic places in National Parks and the National Park Service's National Register of Historic Places to enliven history, social studies, geography, civics, and other subjects Library of Congress Guide to the American Revolution "Hessians:" German Soldiers in the American Revolutionary War. Academic blog with original German sources, English translations, and commentary. Museum of the American Revolution Revolution! The Atlantic World Reborn, explores the transformations in the world's politics from 1763 to 1815, with particular attention to three revolutions in America, France, and Haiti. Linking the attack on monarchism and aristocracy to the struggle against slavery, it at how freedom, equality, and sovereignty of the people became universal goals. New-York Historical Society 132 historic photographs dealing with the personalities, monuments, weapons and locations of the American Revolution; these are pre-1923 and out of copyright. Pictures of the Revolutionary War: Select Audiovisual Records, National Archives and Records Administration images, including non-military events and portraits The Democratic Revolution of the Enlightenment. Legacy of the struggle for independence and democracy. PBS Television Series Liberty Chickasaws Conflicted by the American Revolution – Chickasaw.TV Smithsonian study unit on Revolutionary Money The American Revolution, the History Channel (US cable television) website Black Loyalist Heritage Society Spanish and Latin American contribution to the American Revolution American Archives: Documents of the American Revolution at Northern Illinois University Libraries "Counter-Revolution of 1776": Was U.S. Independence War a Conservative Revolt in Favor of Slavery? Democracy Now! June 27, 2014. 1760s conflicts 1770s conflicts 1780s conflicts 1770s in the United States 1780s in the United States 18th-century rebellions 18th-century revolutions Age of Enlightenment Legal history of the United States Coups d'état and coup attempts in the United States

1980

https://en.wikipedia.org/wiki/Amiga

Amiga

Amiga is a family of personal computers introduced by Commodore in 1985. The original model is one of a number of mid-1980s computers with 16- or 16/32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems. These systems include the Atari ST—released earlier the same year—as well as the Macintosh and Acorn Archimedes. Based on the Motorola 68000 microprocessor, the Amiga differs from its contemporaries through the inclusion of custom hardware to accelerate graphics and sound, including sprites and a blitter, and a pre-emptive multitasking operating system called AmigaOS. The Amiga 1000 was released in July 1985, but production problems kept it from becoming widely available until early 1986. The best-selling model, the Amiga 500, was introduced in 1987 along with the more expandable Amiga 2000. The Amiga 3000 was introduced in 1990, followed by the Amiga 500 Plus, and Amiga 600 in March 1992. Finally, the Amiga 1200 and Amiga 4000 were released in late 1992. The Amiga line sold an estimated 4.85 million units. Although early advertisements cast the computer as an all-purpose business machine, especially when outfitted with the Sidecar IBM PC compatibility add-on, the Amiga was most commercially successful as a home computer, with a wide range of games and creative software. The Video Toaster hardware and software suite helped Amiga find a prominent role in desktop video and video production. The Amiga's audio hardware made it a popular platform for music tracker software. The processor and memory capacity enabled 3D rendering packages, including LightWave 3D, Imagine, and Traces, a predecessor to Blender. Poor marketing and the failure of later models to repeat the technological advances of the first systems resulted in Commodore quickly losing market share to the rapidly dropping prices of IBM PC compatibles, which gained 256 color graphics in 1987, as well as the fourth generation of video game consoles. Commodore ultimately went bankrupt in April 1994 after a version of the Amiga packaged as a game console, the Amiga CD32, failed in the marketplace. Since the demise of Commodore, various groups have marketed successors to the original Amiga line, including Genesi, Eyetech, ACube Systems Srl and A-EON Technology. AmigaOS has influenced replacements, clones, and compatible systems such as MorphOS and AROS. Currently Belgian company Hyperion Entertainment maintains and develops AmigaOS 4, which is an official and direct descendant of AmigaOS 3.1 – the last system made by Commodore for the original Amiga Computers. History Concept and early development Jay Miner joined Atari, Inc. in the 1970s to develop custom integrated circuits, and led development of the Atari Video Computer System's TIA. When complete, the team began developing a much more sophisticated set of chips, CTIA, ANTIC and POKEY, that formed the basis of the Atari 8-bit family. With the 8-bit line's launch in 1979, the team once again started looking at a next generation chipset. Nolan Bushnell had sold the company to Warner Communications in 1978, and the new management was much more interested in the existing lines than development of new products that might cut into their sales. Miner wanted to start work with the new Motorola 68000, but management was only interested in another 6502 based system. Miner left the company, and, for a time, the industry. In 1979, Larry Kaplan left Atari and founded Activision. In 1982, Kaplan was approached by a number of investors who wanted to develop a new game platform. Kaplan hired Miner to run the hardware side of the newly formed company, "Hi-Toro". The system was code-named "Lorraine" in keeping with Miner's policy of giving systems female names, in this case the company president's wife, Lorraine Morse. When Kaplan left the company late in 1982, Miner was promoted to head engineer and the company relaunched as Amiga Corporation. The Amiga hardware was designed by Miner, RJ Mical, and Dale Luck. A breadboard prototype for testing and development was largely completed by late 1983, and shown at the January 1984 Consumer Electronics Show (CES). At the time, the operating system was not ready, so the machine was demonstrated with the "Boing Ball" demo, a real-time animation showing a red-and-white spinning ball bouncing and casting a shadow; this bouncing ball later became the official logo of Escom subsidiary Amiga Technologies. CES attendees had trouble believing the computer being demonstrated had the power to display such a demo and searched in vain for the "real" computer behind it. A further developed version of the system was demonstrated at the June 1984 CES and shown to many companies in hopes of garnering further funding, but found little interest in a market that was in the final stages of the video game crash of 1983. In March, Atari expressed a tepid interest in Lorraine for its potential use in a games console or home computer tentatively known as the . The talks were progressing slowly, and Amiga was running out of money. A temporary arrangement in June led to a $500,000 loan from Atari to Amiga to keep the company going. The terms required the loan to be repaid at the end of the month, otherwise Amiga would forfeit the Lorraine design to Atari. Commodore During 1983, Atari lost over a week, due to the combined effects of the crash and the ongoing price war in the home computer market. By the end of the year, Warner was desperate to sell the company. In January 1984, Jack Tramiel resigned from Commodore due to internal battles over the future direction of the company. A number of Commodore employees followed him to his new company, Tramel Technology. This included a number of the senior technical staff, where they began development of a 68000-based machine of their own. In June, Tramiel arranged a no-cash deal to take over Atari, reforming Tramel Technology as Atari Corporation. As many Commodore technical staff had moved to Atari, Commodore was left with no workable path to design their own next-generation computer. The company approached Amiga offering to fund development as a home computer system. They quickly arranged to repay the Atari loan, ending that threat. The two companies were initially arranging a license agreement before Commodore offered to purchase Amiga outright. By late 1984, the prototype breadboard chipset had successfully been turned into integrated circuits, and the system hardware was being readied for production. At this time the operating system (OS) was not as ready, and led to a deal to port an OS known as TRIPOS to the platform. TRIPOS was a multitasking system that had been written in BCPL during the 1970s for the PDP-11 minicomputer, but later experimentally ported to the 68000. This early version was known as AmigaDOS and the GUI as Workbench. The BCPL parts were later rewritten in the C language, and the entire system became AmigaOS. The system was enclosed in a pizza box form factor case; a late change was the introduction of vertical supports on either side of the case to provide a "garage" under the main section of the system where the keyboard could be stored. Launch The first model was announced in 1985 as simply "The Amiga from Commodore", later to be retroactively dubbed the Amiga 1000. They were first offered for sale in August, but by October only 50 had been built, all of which were used by Commodore. Machines only began to arrive in quantity in mid-November, meaning they missed the Christmas buying rush. By the end of the year, they had sold 35,000 machines, and severe cashflow problems made the company pull out of the January 1986 CES. Bad or entirely missing marketing, forcing the development team to move to the east coast, notorious stability problems and other blunders limited sales in early 1986 to between 10,000 and 15,000 units a month. Later models In late 1985, Thomas Rattigan was promoted to COO of Commodore, and then to CEO in February 1986. He immediately implemented an ambitious plan that covered almost all of the company's operations. Among these was the long-overdue cancellation of the now outdated PET and VIC-20 lines, as well as a variety of poorly selling Commodore 64 offshoots and the Commodore 900 workstation effort. Another one of the changes was to split the Amiga into two products, a new high-end version of the Amiga aimed at the creative market, and a cost-reduced version that would take over for the Commodore 64 in the low-end market. These new designs were released in 1987 as the Amiga 2000 and Amiga 500, the latter of which went on to widespread success and became their best selling model. Similar high-end/low-end models would make up the Amiga line for the rest of its history; follow-on designs included the Amiga 3000/Amiga 500 Plus/Amiga 600, and the Amiga 4000/Amiga 1200. These models incorporated a series of technical upgrades known as the ECS and AGA, which added higher resolution displays among many other improvements and simplifications. The Amiga line sold an estimated 4,850,000 machines over its lifetime. The machines were most popular in the UK and Germany, with about 1.5 million sold in each country, and sales in the high hundreds of thousands in other European nations. The machine was less popular in North America, where an estimated 700,000 were sold. In the United States, the Amiga found a niche with enthusiasts and in vertical markets for video processing and editing. In Europe, it was more broadly popular as a home computer and often used for video games. Beginning in 1988 it overlapped with the 16-bit Mega Drive, then the Super Nintendo Entertainment System in the early 1990s. Commodore UK's Kelly Sumner did not see Sega or Nintendo as competitors, but instead credited their marketing campaigns which spent over or for promoting video games as a whole and thus helping to boost Amiga sales. Bankruptcy In spite of his successes in making the company profitable and bringing the Amiga line to market, Rattigan was soon forced out in a power struggle with majority shareholder, Irving Gould. This is widely regarded as the turning point, as further improvements to the Amiga were eroded by rapid improvements in other platforms. Commodore shut down the Amiga division on April 26, 1994, and filed for bankruptcy three days later. Commodore's assets were purchased by Escom, a German PC manufacturer, who created the subsidiary company Amiga Technologies. They re-released the A1200 and A4000T, and introduced a new 68060 version of the A4000T. In 1996, it was reported that Escom had sold the Amiga intellectual property to VIScorp for $40m (). Amiga Technologies researched and developed the Amiga Walker prototype. They presented the machine publicly at CeBit, but this deal fell through, and Escom, in turn, went bankrupt in 1997. A U.S. Wintel PC manufacturer, Gateway 2000, then purchased the Amiga branch and technology. In 2000, Gateway sold the Amiga brand to Amiga, Inc., without having released any products. Amiga, Inc. licensed the rights to sell hardware using the AmigaOne brand to Eyetech Group and Hyperion Entertainment. In 2019, Amiga, Inc. sold its intellectual property to Amiga Corporation. Hardware The Amiga has a custom chipset consisting of several coprocessors which handle audio, video, and direct memory access independently of the Central Processing Unit (CPU). This architecture gave the Amiga a performance edge over its competitors, particularly for graphics-intensive applications and games. The architecture uses two distinct bus subsystems: the chipset bus and the CPU bus. The chipset bus allows the coprocessors and CPU to address "Chip RAM". The CPU bus provides addressing to conventional RAM, ROM and the Zorro II or Zorro III expansion subsystems. This enables independent operation of the subsystems. The CPU bus can be much faster than the chipset bus. CPU expansion boards may provide additional custom buses. Additionally, "busboards" or "bridgeboards" may provide ISA or PCI buses. Central processing unit The most popular models from Commodore, including the Amiga 1000, Amiga 500, and Amiga 2000, use the Motorola 68000 as the CPU. From a developer's point of view, the 68000 provides a full suite of 32-bit operations, but the chip can address only 16 MB of physical memory and is implemented using a 16-bit arithmetic logic unit and has a 16-bit external data bus, so 32-bit computations are transparently handled as multiple 16-bit values at a performance cost. The later Amiga 2500 and the Amiga 3000 models use fully 32-bit, 68000 compatible, processors from Motorola improved performance and larger addressing capability. CPU upgrades were offered by both Commodore and third-party manufacturers. Most Amiga models can be upgraded either by direct CPU replacement or through expansion boards. Such boards often included faster and higher capacity memory interfaces and hard disk controllers. Towards the end of Commodore's time in charge of Amiga development, there were suggestions that Commodore intended to move away from the 68000 series to higher performance RISC processors, such as the PA-RISC. Those ideas were never developed before Commodore filed for bankruptcy. Despite this, third-party manufacturers designed upgrades featuring a combination of 68000 series and PowerPC processors along with a PowerPC native microkernel and software. Later Amiga clones featured PowerPC processors only. Custom chipset The custom chipset at the core of the Amiga design appeared in three distinct generations, with a large degree of backward-compatibility. The Original Chip Set (OCS) appeared with the launch of the A1000 in 1985. OCS was eventually followed by the modestly improved Enhanced Chip Set (ECS) in 1990 and finally by the partly 32-bit Advanced Graphics Architecture (AGA) in 1992. Each chipset consists of several coprocessors that handle graphics acceleration, digital audio, direct memory access and communication between various peripherals (e.g., CPU, memory and floppy disks). In addition, some models featured auxiliary custom chips that performed tasks such as SCSI control and display de-interlacing. Graphics All Amiga systems can display full-screen animated planar graphics with 2, 4, 8, 16, 32, 64 (EHB Mode), or 4096 colors (HAM Mode). Models with the AGA chipset (A1200 and A4000) also have non-EHB 64, 128, 256, and 262144 (HAM8 Mode) color modes and a palette expanded from 4096 to 16.8 million colors. The Amiga chipset can genlock, which is the ability to adjust its own screen refresh timing to match an incoming NTSC or PAL video signal. When combined with setting transparency, this allows an Amiga to overlay an external video source with graphics. This ability made the Amiga popular for many applications, and provides the ability to do character generation and CGI effects far more cheaply than earlier systems. This ability has been frequently utilized by wedding videographers, TV stations and their weather forecasting divisions (for weather graphics and radar), advertising channels, music video production, and desktop videographers. The NewTek Video Toaster was made possible by the genlock ability of the Amiga. In 1988, the release of the Amiga A2024 fixed-frequency monochrome monitor with built-in framebuffer and flicker fixer hardware provided the Amiga with a choice of high-resolution graphic modes (1024×800 for NTSC and 1024×1024 for PAL). ReTargetable Graphics ReTargetable Graphics is an API for device drivers mainly used by 3rd party graphics hardware to interface with AmigaOS via a set of libraries. The software libraries may include software tools to adjust resolution, screen colors, pointers and screenmodes. The standard Intuition interface is limited to display depths of 8 bits, while RTG makes it possible to handle higher depths like 24-bits. Sound The sound chip, named Paula, supports four PCM sound channels (two for the left speaker and two for the right) with 8-bit resolution for each channel and a 6-bit volume control per channel. The analog output is connected to a low-pass filter, which filters out high-frequency aliasing when the Amiga is using a lower sampling rate (see Nyquist frequency). The brightness of the Amiga's power LED is used to indicate the status of the Amiga's low-pass filter. The filter is active when the LED is at normal brightness, and deactivated when dimmed (or off on older A500 Amigas). On Amiga 1000 (and first Amiga 500 and Amiga 2000 model), the power LED had no relation to the filter's status, and a wire needed to be manually soldered between pins on the sound chip to disable the filter. Paula can read arbitrary waveforms at arbitrary rates and amplitudes directly from the system's RAM, using direct memory access (DMA), making sound playback without CPU intervention possible. Although the hardware is limited to four separate sound channels, software such as OctaMED uses software mixing to allow eight or more virtual channels, and it was possible for software to mix two hardware channels to achieve a single 14-bit resolution channel by playing with the volumes of the channels in such a way that one of the source channels contributes the most significant bits and the other the least. The quality of the Amiga's sound output, and the fact that the hardware is ubiquitous and easily addressed by software, were standout features of Amiga hardware unavailable on PC platforms for years. Third-party sound cards exist that provide DSP functions, multi-track direct-to-disk recording, multiple hardware sound channels and 16-bit and beyond resolutions. A retargetable sound API called AHI was developed allowing these cards to be used transparently by the OS and software. Kickstart firmware Kickstart is the firmware upon which AmigaOS is bootstrapped. Its purpose is to initialize the Amiga hardware and core components of AmigaOS and then attempt to boot from a bootable volume, such as a floppy disk or hard disk drive. Most models (excluding the Amiga 1000) come equipped with Kickstart on an embedded ROM-chip. Keyboard and mouse The keyboard on Amiga computers is similar to that found on a mid-80s IBM PC: Ten function keys, a numeric keypad, and four separate directional arrow keys. Caps Lock and Control share space to the left of A. Absent are Home, End, Page Up, and Page Down keys: These functions are accomplished on Amigas by pressing shift and the appropriate arrow key. The Amiga keyboard adds a Help key, which a function key usually acts as on PCs (usually F1). In addition to the Control and Alt modifier keys, the Amiga has 2 "Amiga" keys, rendered as "Open Amiga" and "Closed Amiga" similar to the Open/Closed Apple logo keys on Apple II keyboards. The left is used to manipulate the operating system (moving screens and the like) and the right delivers commands to the application. The absence of Num lock frees space for more mathematical symbols around the numeric pad. Like IBM-compatible computers, the mouse has two buttons, but in AmigaOS, pressing and holding the right button replaces the system status line at the top of the screen with a Maclike menu bar. As with Apple's Mac OS prior to Mac OS 8, menu options are selected by releasing the button over that option, not by left clicking. Menu items that have a boolean toggle state can be left clicked whilst the menu is kept open with the right button, which allows the user – for example – to set some selected text to bold, underline and italics in one visit to the menus. The mouse plugs into one of two Atari joystick ports used for joysticks, game paddles, and graphics tablets. Although compatible with analog joysticks, Atari-style digital joysticks became standard. Unusually, two independent mice can be connected to the joystick ports; some games, such as Lemmings, were designed to take advantage of this. Other peripherals and expansions The Amiga was one of the first computers for which inexpensive sound sampling and video digitization accessories were available. As a result of this and the Amiga's audio and video capabilities, the Amiga became a popular system for editing and producing both music and video. Many expansion boards were produced for Amiga computers to improve the performance and capability of the hardware, such as memory expansions, SCSI controllers, CPU boards, and graphics boards. Other upgrades include genlocks, network cards for Ethernet, modems, sound cards and samplers, video digitizers, extra serial ports, and IDE controllers. Additions after the demise of Commodore company are USB cards. The most popular upgrades were memory, SCSI controllers and CPU accelerator cards. These were sometimes combined into one device. Early CPU accelerator cards used the full 32-bit CPUs of the 68000 family such as the Motorola 68020 and Motorola 68030, almost always with 32-bit memory and usually with FPUs and MMUs or the facility to add them. Later designs feature the Motorola 68040 or Motorola 68060. Both CPUs feature integrated FPUs and MMUs. Many CPU accelerator cards also had integrated SCSI controllers. Phase5 designed the PowerUP boards (Blizzard PPC and CyberStorm PPC) featuring both a 68k (a 68040 or 68060) and a PowerPC (603 or 604) CPU, which are able to run the two CPUs at the same time and share the system memory. The PowerPC CPU on PowerUP boards is usually used as a coprocessor for heavy computations; a powerful CPU is needed to run MAME for example, but even decoding JPEG pictures and MP3 audio was considered heavy computation at the time. It is also possible to ignore the 68k CPU and run Linux on the PPC via project Linux APUS, but a PowerPC-native AmigaOS promised by Amiga Technologies GmbH was not available when the PowerUP boards first appeared. 24-bit graphics cards and video cards were also available. Graphics cards were designed primarily for 2D artwork production, workstation use, and later, gaming. Video cards are designed for inputting and outputting video signals, and processing and manipulating video. In the North American market, the NewTek Video Toaster was a video effects board that turned the Amiga into an affordable video processing computer that found its way into many professional video environments. One well-known use was to create the special effects in early series of Babylon 5. Due to its NTSC-only design, it did not find a market in countries that used the PAL standard, such as in Europe. In those countries, the OpalVision card was popular, although less featured and supported than the Video Toaster. Low-cost time base correctors (TBC) specifically designed to work with the Toaster quickly came to market, most of which were designed as standard Amiga bus cards. Various manufacturers started producing PCI busboards for the A1200, A3000 and A4000, allowing standard Amiga computers to use PCI cards such as graphics cards, Sound Blaster sound cards, 10/100 Ethernet cards, USB cards, and television tuner cards. Other manufacturers produced hybrid boards that contained an Intel x86 series chip, allowing the Amiga to emulate a PC. PowerPC upgrades with Wide SCSI controllers, PCI busboards with Ethernet, sound and 3D graphics cards, and tower cases allowed the A1200 and A4000 to survive well into the late nineties. Expansion boards were made by Richmond Sound Design that allow their show control and sound design software to communicate with their custom hardware frames either by ribbon cable or fiber optic cable for long distances, allowing the Amiga to control up to eight million digitally controlled external audio, lighting, automation, relay and voltage control channels spread around a large theme park, for example. See Amiga software for more information on these applications. Other devices included the following: Amiga 501 with 512 KB RAM and real-time clock Trumpcard 500 Zorro-II SCSI interface GVP A530 Turbo, accelerator, RAM expansion, PC emulator A2091 / A590 SCSI hard disk controller + 2 MB RAM expansion A3070 SCSI tape backup unit with a capacity of , OEM Archive Viper 1/4-inch A2065 Ethernet Zorro-II interface – the first Ethernet interface for Amiga; uses the AMD Am7990 chip The same interface chip is used in DECstation as well. Ariadne Zorro-II Ethernet interface using the AMD Am7990 A4066 Zorro II Ethernet interface using the SMC 91C90QF X-Surf from Individual Computers using the Realtek 8019AS A2060 Arcnet A1010 floppy disk drive consisting of a 3.5-inch double density (DD), , drive unit connected via DB-23 connector; track-to-track delay is on the order of . The default capacity is . Many clone drives were available, and products such as the Catweasel and KryoFlux make it possible to read and write Amiga and other special disc formats on standard x86 PCs. NE2000-compatible PCMCIA Ethernet cards for Amiga 600 and Amiga 1200 Serial ports The Commodore A2232 board provides seven RS-232C serial ports in addition to the Amiga's built-in serial port. Each port can be driven independently at speeds of 50 to . There is, however, a driver available on Aminet that allows two of the serial ports to be driven at . The serial card used the 65CE02 CPU clocked at . This CPU was also part of the CSG 4510 CPU core that was used in the Commodore 65 computer. Networking Amiga has three networking interface APIs: AS225: the official Commodore TCP/IP stack API with hard-coded drivers in revision 1 (AS225r1) for the A2065 Ethernet and the A2060 Arcnet interfaces. In revision 2, (AS225r2) the SANA-II interface was used. SANA-II: a standardized API for hardware of network interfaces. It uses an inefficient buffer handling scheme, and lacks proper support for promiscuous and multicast modes. Miami Network Interface (MNI): an API that doesn't have the problems that SANA-II suffers from. It requires AmigaOS v2.04 or higher. Different network media were used: Models and variants The original Amiga models were produced from 1985 to 1996. They are, in order of production: 1000, 2000, 500, 1500, 2500, 3000, 3000UX, 3000T, CDTV, 500+, 600, 4000, 1200, CD32, and 4000T. The PowerPC-based AmigaOne computers were later marketed beginning in 2002. Several companies and private persons have also released Amiga clones and still do so today. Commodore Amiga The first Amiga model, the Amiga 1000, was launched in 1985. In 2006, PC World rated the Amiga 1000 as the seventh greatest PC of all time, stating "Years ahead of its time, the Amiga was the world's first multimedia, multitasking personal computer". Commodore updated the desktop line of Amiga computers with the Amiga 2000 in 1987, the Amiga 3000 in 1990, and the Amiga 4000 in 1992, each offering improved capabilities and expansion options. The best-selling models were the budget models, however, particularly the highly successful Amiga 500 (1987) and the Amiga 1200 (1992). The Amiga 500+ (1991) was the shortest-lived model, replacing the Amiga 500 and lasting only six months until it was phased out and replaced with the Amiga 600 (1992), which in turn was also quickly replaced by the Amiga 1200. The CDTV, launched in 1991, was a CD-ROM-based game console and multimedia appliance several years before CD-ROM drives were common. The system never achieved any real success. Commodore's last Amiga offering before filing for bankruptcy was the Amiga CD32 (1993), a 32-bit CD-ROM games console. Although discontinued after Commodore's demise it met with moderate commercial success in Europe. The CD32 was a next-generation CDTV, and it was designed to save Commodore by entering the growing video game console market. Following purchase of Commodore's assets by Escom in 1995, the A1200 and A4000T continued to be sold in small quantities until 1996, though the ground lost since the initial launch and the prohibitive expense of these units meant that the Amiga line never regained any real popularity. Several Amiga models contained references to songs by the rock band The B-52's. Early A500 units had the words "B52/ROCK LOBSTER" silk-screen printed onto their printed circuit board, a reference to the song "Rock Lobster" The Amiga 600 referenced "JUNE BUG" (after the song "Junebug") and the Amiga 1200 had "CHANNEL Z" (after "Channel Z"), and the CD-32 had "Spellbound." AmigaOS 4 systems AmigaOS 4 is designed for PowerPC Amiga systems. It is mainly based on AmigaOS 3.1 source code, with some parts of version 3.9. Currently runs on both Amigas equipped with CyberstormPPC or BlizzardPPC accelerator boards, on the Teron series based AmigaOne computers built by Eyetech under license by Amiga, Inc., on the Pegasos II from Genesi/bPlan GmbH, on the ACube Systems Srl Sam440ep / Sam460ex / AmigaOne 500 systems and on the A-EON AmigaOne X1000. AmigaOS 4.0 had been available only in developer pre-releases for numerous years until it was officially released in December 2006. Due to the nature of some provisions of the contract between Amiga Inc. and Hyperion Entertainment (the Belgian company that is developing the OS), the commercial AmigaOS 4 had been available only to licensed buyers of AmigaOne motherboards. AmigaOS 4.0 for Amigas equipped with PowerUP accelerator boards was released in November 2007. Version 4.1 was released in August 2008 for AmigaOne systems, and in May 2011 for Amigas equipped with PowerUP accelerator boards. The most recent release of AmigaOS for all supported platforms is 4.1 update 5. Starting with release 4.1 update 4 there is an Emulation drawer containing official AmigaOS 3.x ROMs (all classic Amiga models including CD32) and relative Workbench files. Acube Systems entered an agreement with Hyperion under which it has ported AmigaOS 4 to its Sam440ep and Sam460ex line of PowerPC-based motherboards. In 2009 a version for Pegasos II was released in co-operation with Acube Systems. In 2012, A-EON Technology Ltd manufactured and released the AmigaOne X1000 to consumers through their partner, Amiga Kit who provided end-user support, assembly and worldwide distribution of the new system. Amiga hardware clones Long-time Amiga developer MacroSystem entered the Amiga-clone market with their DraCo non-linear video editing system. It appears in two versions, initially a tower model and later a cube. DraCo expanded upon and combined a number of earlier expansion cards developed for Amiga (VLabMotion, Toccata, WarpEngine, RetinaIII) into a true Amiga-clone powered by the Motorola 68060 processor. The DraCo can run AmigaOS 3.1 up through AmigaOS 3.9. It is the only Amiga-based system to support FireWire for video I/O. DraCo also offers an Amiga-compatible Zorro-II expansion bus and introduced a faster custom DraCoBus, capable of transfer rates (faster than Commodore's Zorro-III). The technology was later used in the Casablanca system, a set-top-box also designed for non-linear video editing. In 1998, Index Information released the Access, an Amiga-clone similar to the Amiga 1200, but on a motherboard that could fit into a standard -inch drive bay. It features either a 68020 or 68030 CPU, with a AGA chipset, and runs AmigaOS 3.1. In 1998, former Amiga employees (John Smith, Peter Kittel, Dave Haynie and Andy Finkel to mention few) formed a new company called PIOS. Their hardware platform, PIOS One, was aimed at Amiga, Atari and Macintosh users. The company was renamed to Met@box in 1999 until it folded. The NatAmi (short for Native Amiga) hardware project began in 2005 with the aim of designing and building an Amiga clone motherboard that is enhanced with modern features. The NatAmi motherboard is a standard Mini-ITX-compatible form factor computer motherboard, powered by a Motorola/Freescale 68060 and its chipset. It is compatible with the original Amiga chipset, which has been inscribed on a programmable FPGA Altera chip on the board. The NatAmi is the second Amiga clone project after the Minimig motherboard, and its history is very similar to that of the C-One mainboard developed by Jeri Ellsworth and Jens Schönfeld. From a commercial point of view, Natami's circuitry and design are currently closed source. One goal of the NatAmi project is to design an Amiga-compatible motherboard that includes up-to-date features but that does not rely on emulation (as in WinUAE), modern PC Intel components, or a modern PowerPC mainboard. As such, NatAmi is not intended to become another evolutionary heir to classic Amigas, such as with AmigaOne or Pegasos computers. This "purist" philosophy essentially limits the resulting processor speed but puts the focus on bandwidth and low latencies. The developers also recreated the entire Amiga chipset, freeing it from legacy Amiga limitations such as two megabytes of audio and video graphics RAM as in the AGA chipset, and rebuilt this new chipset by programming a modern FPGA Altera Cyclone IV chip. Later, the developers decided to create from scratch a new software-form processor chip, codenamed "N68050" that resides in the physical Altera FPGA programmable chip. In 2006, two new Amiga clones were announced, both using FPGA based hardware synthesis to replace the Amiga OCS custom chipset. The first, the Minimig, is a personal project of Dutch engineer Dennis van Weeren. Referred to as "new Amiga hardware", the original model was built on a Xilinx Spartan-3 development board, but soon a dedicated board was developed. The minimig uses the FPGA to reproduce the custom Denise, Agnus, Paula and Gary chips as well as both 8520 CIAs and implements a simple version of Amber. The rest of the chips are an actual 68000 CPU, ram chips, and a PIC microcontroller for BIOS control. The design for Minimig was released as open-source on July 25, 2007. In February 2008, an Italian company Acube Systems began selling Minimig boards. A third party upgrade replaces the PIC microcontroller with a more powerful ARM processor, providing more functionality such as write access and support for hard disk images. The Minimig core has been ported to the FPGArcade "Replay" board. The Replay uses an FPGA with about three times more capacity and that does support the AGA chipset and a 68020 soft core with 68030 capabilities. The Replay board is designed to implement many older computers and classic arcade machines. The second is the Clone-A system announced by Individual Computers. As of mid-2007 it has been shown in its development form, with FPGA-based boards replacing the Amiga chipset and mounted on an Amiga 500 motherboard. Operating systems AmigaOS AmigaOS is a single-user multitasking operating system. It was one of the first commercially available consumer operating systems for personal computers to implement preemptive multitasking. It was developed first by Commodore International and initially introduced in 1985 with the Amiga 1000. John C. Dvorak wrote in PC Magazine in 1996: AmigaOS combines a command-line interface and graphical user interface. AmigaDOS is the disk operating system and command line portion of the OS and Workbench the native graphical windowing, graphical environment for file management and launching applications. AmigaDOS allows long filenames (up to 107 characters) with whitespace and does not require filename extensions. The windowing system and user interface engine that handles all input events is called Intuition. The multi-tasking kernel is called Exec. It acts as a scheduler for tasks running on the system, providing pre-emptive multitasking with prioritised round-robin scheduling. It enabled true pre-emptive multitasking in as little as 256 KB of free memory. AmigaOS does not implement memory protection; the 68000 CPU does not include a memory management unit. Although this speeds and eases inter-process communication because programs can communicate by simply passing a pointer back and forth, the lack of memory protection made the AmigaOS more vulnerable to crashes from badly behaving programs than other multitasking systems that did implement memory protection, and Amiga OS is fundamentally incapable of enforcing any form of security model since any program had full access to the system. A co-operational memory protection feature was implemented in AmigaOS 4 and could be retrofitted to old AmigaOS systems using Enforcer or CyberGuard tools. The problem was somewhat exacerbated by Commodore's initial decision to release documentation relating not only to the OS's underlying software routines, but also to the hardware itself, enabling intrepid programmers who had developed their skills on the Commodore 64 to POKE the hardware directly, as was done on the older platform. While the decision to release the documentation was a popular one and allowed the creation of fast, sophisticated sound and graphics routines in games and demos, it also contributed to system instabilityas some programmers lacked the expertise to program at this level. For this reason, when the new AGA chipset was released, Commodore declined to release low-level documentation in an attempt to force developers into using the approved software routines. Influence on other operating systems AmigaOS directly or indirectly inspired the development of various operating systems. MorphOS and AROS clearly inherit heavily from the structure of AmigaOS as explained directly in articles regarding these two operating systems. AmigaOS also influenced BeOS, which featured a centralized system of Datatypes, similar to that present in AmigaOS. Likewise, DragonFly BSD was also inspired by AmigaOS as stated by Dragonfly developer Matthew Dillon who is a former Amiga developer. WindowLab and amiwm are among several window managers for the X Window System seek to mimic the Workbench interface. IBM licensed the Amiga GUI from Commodore in exchange for the REXX language license. This allowed OS/2 to have the WPS (Workplace Shell) GUI shell for OS/2 2.0, a 32-bit operating system. Unix and Unix-like systems Commodore-Amiga produced Amiga Unix, informally known as Amix, based on AT&T SVR4. It supports the Amiga 2500 and Amiga 3000 and is included with the Amiga 3000UX. Among other unusual features of Amix is a hardware-accelerated windowing system that can scroll windows without copying data. Amix is not supported on the later Amiga systems based on 68040 or 68060 processors. Other, still maintained, operating systems are available for the classic Amiga platform, including Linux and NetBSD. Both require a CPU with MMU such as the 68020 with 68851 or full versions of the 68030, 68040 or 68060. There is also a version of Linux for Amigas with PowerPC accelerator cards. Debian and Yellow Dog Linux can run on the AmigaOne. There is an official, older version of OpenBSD. The last Amiga release is 3.2. MINIX 1.5.10 also runs on Amiga. Emulating other systems The Amiga Sidecar is a complete IBM PC XT compatible computer contained in an expansion card. It was released by Commodore in 1986 and promoted as a way to run business software on the Amiga 1000. Amiga software In the late 1980s and early 1990s the platform became particularly popular for gaming, demoscene activities and creative software uses. During this time commercial developers marketed a wide range of games and creative software, often developing titles simultaneously for the Atari ST due to the similar hardware architecture. Popular creative software included 3D rendering (ray-tracing) packages, bitmap graphics editors, desktop video software, software development packages and "tracker" music editors. Until the late 1990s the Amiga remained a popular platform for non-commercial software, often developed by enthusiasts, and much of which was freely redistributable. An on-line archive, Aminet, was created in 1991 and until the late-1990s was the largest public archive of software, art and documents for any platform. Marketing The name Amiga was chosen by the developers from the Spanish word for a female friend, because they knew Spanish, and because it occurred before Apple and Atari alphabetically. It also conveyed the message that the Amiga computer line was "user friendly" as a pun or play on words. The first official Amiga logo was a rainbow-colored double check mark. In later marketing material Commodore largely dropped the checkmark and used logos styled with various typefaces. Although it was never adopted as a trademark by Commodore, the "Boing Ball" has been synonymous with Amiga since its launch. It became an unofficial and enduring theme after a visually impressive animated demonstration at the 1984 Winter Consumer Electronics Show in January 1984 showing a checkered ball bouncing and rotating. Following Escom's purchase of Commodore in 1996, the Boing Ball theme was incorporated into a new logo. Early Commodore advertisements attempted to cast the computer as an all-purpose business machine, though the Amiga was most commercially successful as a home computer. Throughout the 1980s and early 1990s Commodore primarily placed advertising in computer magazines and occasionally in national newspapers and on television. Legacy Since the demise of Commodore, various groups have marketed successors to the original Amiga line: Genesi sold PowerPC based hardware under the Pegasos brand running AmigaOS and MorphOS; Eyetech sold PowerPC based hardware under the AmigaOne brand from 2002 to 2005 running AmigaOS 4; Amiga Kit distributes and sells PowerPC based hardware under the AmigaOne brand from 2010 to present day running AmigaOS 4; ACube Systems sells the AmigaOS 3 compatible Minimig system with a Freescale MC68SEC000 CPU (Motorola 68000 compatible) and AmigaOS 4 compatible Sam440 / Sam460 / AmigaOne 500 systems with PowerPC processors; A-EON Technology Ltd sells the AmigaOS 4 compatible AmigaOne X1000 system with P.A. Semi PWRficient PA6T-1682M processor. Amiga Kit, Vesalia Computer and AMIGAstore.eu sell numerous items from aftermarket components to refurbished classic systems. AmigaOS and MorphOS are commercial proprietary operating systems. AmigaOS 4, based on AmigaOS 3.1 source code with some parts of version 3.9, is developed by Hyperion Entertainment and runs on PowerPC based hardware. MorphOS, based on some parts of AROS source code, is developed by MorphOS Team and is continued on Apple and other PowerPC based hardware. There is also AROS, a free and open source operating system (re-implementation of the AmigaOS 3.1 APIs), for Amiga 68k, x86 and ARM hardware (one version runs Linux-hosted on the Raspberry Pi). In particular, AROS for Amiga 68k hardware aims to create an open source Kickstart ROM replacement for emulation purpose and/or for use on real "classic" hardware. Magazines Amiga Format continued publication until 2000. Amiga Active was launched in 1999 and was published until 2001. Several magazines are in publication today: Amiga Future, which is available in both English and German; Bitplane.it, a bimonthly magazine in Italian; and AmigaPower, a long-running French magazine. Print magazine Amiga Addict started publication in 2020. Trade Shows The Amiga continues to be popular enough that fans to support conferences such as Amiga37 which had over 50 vendors. Uses The Amiga series of computers found a place in early computer graphic design and television presentation. Season 1 and part of season 2 of the television series Babylon 5 were rendered in LightWave 3D on Amigas. Other television series using Amigas for special effects included SeaQuest DSV and Max Headroom. In addition, many celebrities and notable individuals have made use of the Amiga: Andy Warhol was an early user of the Amiga and appeared at the launch, where he made a computer artwork of Debbie Harry. Warhol used the Amiga to create a new style of art made with computers, and was the author of a multimedia opera called You Are the One, which consists of an animated sequence featuring images of actress Marilyn Monroe assembled in a short movie with a soundtrack. The video was discovered on two old Amiga floppies in a drawer in Warhol's studio and repaired in 2006 by the Detroit Museum of New Art. The pop artist has been quoted as saying: "The thing I like most about doing this kind of work on the Amiga is that it looks like my work in other media". Artist Jean "Moebius" Giraud credits the Amiga he bought for his son as a bridge to learning about "using paint box programs". He uploaded some of his early experiments to the file sharing forums on CompuServe. Futurist and science fiction author Arthur C. Clarke used an Amiga computer to calculate and explore Mandelbrot sets in the 1988 documentary film God, the Universe and Everything Else. The "Weird Al" Yankovic film UHF contains a computer-animated music video parody of the Dire Straits song "Money for Nothing", titled "Money for Nothing/Beverly Hillbillies*". According to the DVD commentary track, this spoof was created on an Amiga home computer. Rolf Harris used an Amiga to digitize his hand-drawn art work for animation on his television series Rolf's Cartoon Club. Debbie Harry appeared together with Andy Warhol (see above) at launch. Todd Rundgren's video "Change Myself" was produced with Toaster and Lightwave. Scottish pop artist Calvin Harris composed his 2007 debut album I Created Disco with an Amiga 1200. Susumu Hirasawa, a Japanese progressive-electronic artist, is known for using Amigas to compose and perform music, aid his live shows and make his promotional videos. He has also been inspired by the Amiga, and has referenced it in his lyrics. His December 13, 1994 "Adios Jay" Interactive Live Show was dedicated to (then recently deceased) Jay Miner. He also used the Amiga to create the virtual drummer TAINACO, who was a CG rendered figure whose performance was made with Elan Performer and was projected with DCTV. He also composed and performed "Eastern-boot", the AmigaOS 4 boot jingle. Electronic musician Max Tundra created his three albums with an Amiga 500. Bob Casale, keyboardist and guitarist of the new wave band Devo, used Amiga computer graphics on the album cover to Devo's album Total Devo. Most of Pokémon Gold and Silver's music was created on an Amiga computer, converted to MIDI, and then reconverted to the game's music format. Special purpose applications Amigas were used in various NASA laboratories to keep track of low orbiting satellites until 2004. Amigas were used at Kennedy Space Center to run strip-chart recorders, to format and display data, and control stations of platforms for Delta rocket launches. Palomar Observatory used Amigas to calibrate and control the charge-coupled devices in their telescopes, as well as to display and store the digitized images they collected. London Transport Museum developed their own interactive multi-media software for the CD32 including a virtual tour of the museum. Amiga 500 motherboards were used, in conjunction with a LaserDisc player and genlock device, in arcade games manufactured by American Laser Games. A custom Amiga 4000T motherboard was used in the HDI 1000 medical ultrasound system built by Advanced Technology Labs. , the Grand Rapids Public School district uses a Commodore Amiga 2000 with 1200 baud modem to automate its air conditioning and heating systems for the 19 schools covered by the GRPS district. The system has been operating day and night for decades. The Weather Network used Amigas to display the weather on TV. See also Amiga Forever List of Amiga games Amiga emulation SAGE Computer Technology Notes References Works cited External links Official AmigaOS website History of the Amiga at Ars Technica Amiga, Inc. Website Amiga Software Database Amiga Hardware Database Big Book of Amiga Hardware Lemon Amiga: Amiga Fanbase RUN Magazine Issue 21, September 1985 article on the introduction of the Amiga Amiga.org: community forums and support English Amiga Board: Amiga community forums and support The Hall of Light: the database of Amiga games The Amiga Museum 68k-based computers American inventions Computer-related introductions in 1985 Desktop computers Home computers

1994

https://en.wikipedia.org/wiki/ASP

ASP

ASP may refer to: Combat ASP pistol ASP, Inc., law enforcement weapon manufacturer A type of extending baton Ammunition Supply Point, military storage facility for live ammunition and explosives Computing Active Server Pages, a web-scripting interface by Microsoft ASP.NET, a web-application framework by Microsoft Advanced Simple Profile, an MPEG-4 video codec profile Answer set programming, a declarative programming paradigm Application service provider, to customers over a network AppleTalk Session Protocol Association of Software Professionals Attached Support Processor, IBM hardware system Auxiliary storage pool, a feature of the IBM operating system Education American School of Paris Jan Matejko Academy of Fine Arts, Kraków, Poland Electronics Audio Signal Processor, large-scale digital signal processor Anti-skip protection or electronic skip protection in CD playback Angle-sensitive pixel, a light sensor Entertainment ASP (band), a German gothic metal band ASP (Japanese group), Japanese idol girl group Adult service provider (disambiguation) Apparent Sensory Perception, a thought recording and reproduction device in William Gibson's fiction Medicine and biology Aspartic acid, α-amino acid used in the biosynthesis of proteins Acylation stimulating protein American Society for Photobiology Amnesic shellfish poisoning Complement component 3, a protein in the complement system Antimicrobial stewardship, effort to educate and persuade prescribers of antimicrobials to follow evidence-based prescribing American Society of Primatologists Politics Act of the Scottish Parliament American Solidarity Party, a Christian Democratic political party in the United States Australian Sex Party Afro-Shirazi Party, political party in Tanzania Assembly for the Sovereignty of the Peoples, a political party in Bolivia Assembly of States Parties, the legislative body of the International Criminal Court Other uses Airborne Surveillance Platform, Indian defence project Albany Student Press, newspaper of the University at Albany, The State University of New York Alice Springs Airport (IATA airport code) Allegany State Park Appalachia Service Project, for housing improvement Arkansas State Police Asociación de Scouts del Perú Aspatria railway station, UK, National Rail code Assault system pod or A.S.P., for the G.I. Joe doll Association of Surfing Professionals, former name of World Surf League Assistant superintendent of police Astronomical Society of the Pacific Authorized service provider Avenal State Prison in California, USA Average selling price of goods See also ASPS (disambiguation) Asp (disambiguation)

1997

https://en.wikipedia.org/wiki/Algebraic%20geometry

Algebraic geometry

Algebraic geometry is a branch of mathematics which classically studies zeros of multivariate polynomials. Modern algebraic geometry is based on the use of abstract algebraic techniques, mainly from commutative algebra, for solving geometrical problems about these sets of zeros. The fundamental objects of study in algebraic geometry are algebraic varieties, which are geometric manifestations of solutions of systems of polynomial equations. Examples of the most studied classes of algebraic varieties are lines, circles, parabolas, ellipses, hyperbolas, cubic curves like elliptic curves, and quartic curves like lemniscates and Cassini ovals. These are plane algebraic curves. A point of the plane lies on an algebraic curve if its coordinates satisfy a given polynomial equation. Basic questions involve the study of points of special interest like singular points, inflection points and points at infinity. More advanced questions involve the topology of the curve and the relationship between curves defined by different equations. Algebraic geometry occupies a central place in modern mathematics and has multiple conceptual connections with such diverse fields as complex analysis, topology and number theory. As a study of systems of polynomial equations in several variables, the subject of algebraic geometry begins with finding specific solutions via equation solving, and then proceeds to understand the intrinsic properties of the totality of solutions of a system of equations. This understanding requires both conceptual theory and computational technique. In the 20th century, algebraic geometry split into several subareas. The mainstream of algebraic geometry is devoted to the study of the complex points of the algebraic varieties and more generally to the points with coordinates in an algebraically closed field. Real algebraic geometry is the study of the real algebraic varieties. Diophantine geometry and, more generally, arithmetic geometry is the study of algebraic varieties over fields that are not algebraically closed and, specifically, over fields of interest in algebraic number theory, such as the field of rational numbers, number fields, finite fields, function fields, and p-adic fields. A large part of singularity theory is devoted to the singularities of algebraic varieties. Computational algebraic geometry is an area that has emerged at the intersection of algebraic geometry and computer algebra, with the rise of computers. It consists mainly of algorithm design and software development for the study of properties of explicitly given algebraic varieties. Much of the development of the mainstream of algebraic geometry in the 20th century occurred within an abstract algebraic framework, with increasing emphasis being placed on "intrinsic" properties of algebraic varieties not dependent on any particular way of embedding the variety in an ambient coordinate space; this parallels developments in topology, differential and complex geometry. One key achievement of this abstract algebraic geometry is Grothendieck's scheme theory which allows one to use sheaf theory to study algebraic varieties in a way which is very similar to its use in the study of differential and analytic manifolds. This is obtained by extending the notion of point: In classical algebraic geometry, a point of an affine variety may be identified, through Hilbert's Nullstellensatz, with a maximal ideal of the coordinate ring, while the points of the corresponding affine scheme are all prime ideals of this ring. This means that a point of such a scheme may be either a usual point or a subvariety. This approach also enables a unification of the language and the tools of classical algebraic geometry, mainly concerned with complex points, and of algebraic number theory. Wiles' proof of the longstanding conjecture called Fermat's Last Theorem is an example of the power of this approach. Basic notions Zeros of simultaneous polynomials In classical algebraic geometry, the main objects of interest are the vanishing sets of collections of polynomials, meaning the set of all points that simultaneously satisfy one or more polynomial equations. For instance, the two-dimensional sphere of radius 1 in three-dimensional Euclidean space R3 could be defined as the set of all points (x,y,z) with A "slanted" circle in R3 can be defined as the set of all points (x,y,z) which satisfy the two polynomial equations Affine varieties First we start with a field k. In classical algebraic geometry, this field was always the complex numbers C, but many of the same results are true if we assume only that k is algebraically closed. We consider the affine space of dimension n over k, denoted An(k) (or more simply An, when k is clear from the context). When one fixes a coordinate system, one may identify An(k) with kn. The purpose of not working with kn is to emphasize that one "forgets" the vector space structure that kn carries. A function f : An → A1 is said to be polynomial (or regular) if it can be written as a polynomial, that is, if there is a polynomial p in k[x1,...,xn] such that f(M) = p(t1,...,tn) for every point M with coordinates (t1,...,tn) in An. The property of a function to be polynomial (or regular) does not depend on the choice of a coordinate system in An. When a coordinate system is chosen, the regular functions on the affine n-space may be identified with the ring of polynomial functions in n variables over k. Therefore, the set of the regular functions on An is a ring, which is denoted k[An]. We say that a polynomial vanishes at a point if evaluating it at that point gives zero. Let S be a set of polynomials in k[An]. The vanishing set of S (or vanishing locus or zero set) is the set V(S) of all points in An where every polynomial in S vanishes. Symbolically, A subset of An which is V(S), for some S, is called an algebraic set. The V stands for variety (a specific type of algebraic set to be defined below). Given a subset U of An, can one recover the set of polynomials which generate it? If U is any subset of An, define I(U) to be the set of all polynomials whose vanishing set contains U. The I stands for ideal: if two polynomials f and g both vanish on U, then f+g vanishes on U, and if h is any polynomial, then hf vanishes on U, so I(U) is always an ideal of the polynomial ring k[An]. Two natural questions to ask are: Given a subset U of An, when is U = V(I(U))? Given a set S of polynomials, when is S = I(V(S))? The answer to the first question is provided by introducing the Zariski topology, a topology on An whose closed sets are the algebraic sets, and which directly reflects the algebraic structure of k[An]. Then U = V(I(U)) if and only if U is an algebraic set or equivalently a Zariski-closed set. The answer to the second question is given by Hilbert's Nullstellensatz. In one of its forms, it says that I(V(S)) is the radical of the ideal generated by S. In more abstract language, there is a Galois connection, giving rise to two closure operators; they can be identified, and naturally play a basic role in the theory; the example is elaborated at Galois connection. For various reasons we may not always want to work with the entire ideal corresponding to an algebraic set U. Hilbert's basis theorem implies that ideals in k[An] are always finitely generated. An algebraic set is called irreducible if it cannot be written as the union of two smaller algebraic sets. Any algebraic set is a finite union of irreducible algebraic sets and this decomposition is unique. Thus its elements are called the irreducible components of the algebraic set. An irreducible algebraic set is also called a variety. It turns out that an algebraic set is a variety if and only if it may be defined as the vanishing set of a prime ideal of the polynomial ring. Some authors do not make a clear distinction between algebraic sets and varieties and use irreducible variety to make the distinction when needed. Regular functions Just as continuous functions are the natural maps on topological spaces and smooth functions are the natural maps on differentiable manifolds, there is a natural class of functions on an algebraic set, called regular functions or polynomial functions. A regular function on an algebraic set V contained in An is the restriction to V of a regular function on An. For an algebraic set defined on the field of the complex numbers, the regular functions are smooth and even analytic. It may seem unnaturally restrictive to require that a regular function always extend to the ambient space, but it is very similar to the situation in a normal topological space, where the Tietze extension theorem guarantees that a continuous function on a closed subset always extends to the ambient topological space. Just as with the regular functions on affine space, the regular functions on V form a ring, which we denote by k[V]. This ring is called the coordinate ring of V. Since regular functions on V come from regular functions on An, there is a relationship between the coordinate rings. Specifically, if a regular function on V is the restriction of two functions f and g in k[An], then f − g is a polynomial function which is null on V and thus belongs to I(V). Thus k[V] may be identified with k[An]/I(V). Morphism of affine varieties Using regular functions from an affine variety to A1, we can define regular maps from one affine variety to another. First we will define a regular map from a variety into affine space: Let V be a variety contained in An. Choose m regular functions on V, and call them f1, ..., fm. We define a regular map f from V to Am by letting . In other words, each fi determines one coordinate of the range of f. If V′ is a variety contained in Am, we say that f is a regular map from V to V′ if the range of f is contained in V′. The definition of the regular maps apply also to algebraic sets. The regular maps are also called morphisms, as they make the collection of all affine algebraic sets into a category, where the objects are the affine algebraic sets and the morphisms are the regular maps. The affine varieties is a subcategory of the category of the algebraic sets. Given a regular map g from V to V′ and a regular function f of k[V′], then . The map is a ring homomorphism from k[V′] to k[V]. Conversely, every ring homomorphism from k[V′] to k[V] defines a regular map from V to V′. This defines an equivalence of categories between the category of algebraic sets and the opposite category of the finitely generated reduced k-algebras. This equivalence is one of the starting points of scheme theory. Rational function and birational equivalence In contrast to the preceding sections, this section concerns only varieties and not algebraic sets. On the other hand, the definitions extend naturally to projective varieties (next section), as an affine variety and its projective completion have the same field of functions. If V is an affine variety, its coordinate ring is an integral domain and has thus a field of fractions which is denoted k(V) and called the field of the rational functions on V or, shortly, the function field of V. Its elements are the restrictions to V of the rational functions over the affine space containing V. The domain of a rational function f is not V but the complement of the subvariety (a hypersurface) where the denominator of f vanishes. As with regular maps, one may define a rational map from a variety V to a variety V'. As with the regular maps, the rational maps from V to V' may be identified to the field homomorphisms from k(V') to k(V). Two affine varieties are birationally equivalent if there are two rational functions between them which are inverse one to the other in the regions where both are defined. Equivalently, they are birationally equivalent if their function fields are isomorphic. An affine variety is a rational variety if it is birationally equivalent to an affine space. This means that the variety admits a rational parameterization, that is a parametrization with rational functions. For example, the circle of equation is a rational curve, as it has the parametric equation which may also be viewed as a rational map from the line to the circle. The problem of resolution of singularities is to know if every algebraic variety is birationally equivalent to a variety whose projective completion is nonsingular (see also smooth completion). It was solved in the affirmative in characteristic 0 by Heisuke Hironaka in 1964 and is yet unsolved in finite characteristic. Projective variety Just as the formulas for the roots of second, third, and fourth degree polynomials suggest extending real numbers to the more algebraically complete setting of the complex numbers, many properties of algebraic varieties suggest extending affine space to a more geometrically complete projective space. Whereas the complex numbers are obtained by adding the number i, a root of the polynomial , projective space is obtained by adding in appropriate points "at infinity", points where parallel lines may meet. To see how this might come about, consider the variety . If we draw it, we get a parabola. As x goes to positive infinity, the slope of the line from the origin to the point (x, x2) also goes to positive infinity. As x goes to negative infinity, the slope of the same line goes to negative infinity. Compare this to the variety V(y − x3). This is a cubic curve. As x goes to positive infinity, the slope of the line from the origin to the point (x, x3) goes to positive infinity just as before. But unlike before, as x goes to negative infinity, the slope of the same line goes to positive infinity as well; the exact opposite of the parabola. So the behavior "at infinity" of V(y − x3) is different from the behavior "at infinity" of V(y − x2). The consideration of the projective completion of the two curves, which is their prolongation "at infinity" in the projective plane, allows us to quantify this difference: the point at infinity of the parabola is a regular point, whose tangent is the line at infinity, while the point at infinity of the cubic curve is a cusp. Also, both curves are rational, as they are parameterized by x, and the Riemann-Roch theorem implies that the cubic curve must have a singularity, which must be at infinity, as all its points in the affine space are regular. Thus many of the properties of algebraic varieties, including birational equivalence and all the topological properties, depend on the behavior "at infinity" and so it is natural to study the varieties in projective space. Furthermore, the introduction of projective techniques made many theorems in algebraic geometry simpler and sharper: For example, Bézout's theorem on the number of intersection points between two varieties can be stated in its sharpest form only in projective space. For these reasons, projective space plays a fundamental role in algebraic geometry. Nowadays, the projective space Pn of dimension n is usually defined as the set of the lines passing through a point, considered as the origin, in the affine space of dimension , or equivalently to the set of the vector lines in a vector space of dimension . When a coordinate system has been chosen in the space of dimension , all the points of a line have the same set of coordinates, up to the multiplication by an element of k. This defines the homogeneous coordinates of a point of Pn as a sequence of elements of the base field k, defined up to the multiplication by a nonzero element of k (the same for the whole sequence). A polynomial in variables vanishes at all points of a line passing through the origin if and only if it is homogeneous. In this case, one says that the polynomial vanishes at the corresponding point of Pn. This allows us to define a projective algebraic set in Pn as the set , where a finite set of homogeneous polynomials vanishes. Like for affine algebraic sets, there is a bijection between the projective algebraic sets and the reduced homogeneous ideals which define them. The projective varieties are the projective algebraic sets whose defining ideal is prime. In other words, a projective variety is a projective algebraic set, whose homogeneous coordinate ring is an integral domain, the projective coordinates ring being defined as the quotient of the graded ring or the polynomials in variables by the homogeneous (reduced) ideal defining the variety. Every projective algebraic set may be uniquely decomposed into a finite union of projective varieties. The only regular functions which may be defined properly on a projective variety are the constant functions. Thus this notion is not used in projective situations. On the other hand, the field of the rational functions or function field is a useful notion, which, similarly to the affine case, is defined as the set of the quotients of two homogeneous elements of the same degree in the homogeneous coordinate ring. Real algebraic geometry Real algebraic geometry is the study of real algebraic varieties. The fact that the field of the real numbers is an ordered field cannot be ignored in such a study. For example, the curve of equation is a circle if , but has no real points if . Real algebraic geometry also investigates, more broadly, semi-algebraic sets, which are the solutions of systems of polynomial inequalities. For example, neither branch of the hyperbola of equation is a real algebraic variety. However, the branch in the first quadrant is a semi-algebraic set defined by and . One open problem in real algebraic geometry is the following part of Hilbert's sixteenth problem: Decide which respective positions are possible for the ovals of a nonsingular plane curve of degree 8. Computational algebraic geometry One may date the origin of computational algebraic geometry to meeting EUROSAM'79 (International Symposium on Symbolic and Algebraic Manipulation) held at Marseille, France, in June 1979. At this meeting, Dennis S. Arnon showed that George E. Collins's Cylindrical algebraic decomposition (CAD) allows the computation of the topology of semi-algebraic sets, Bruno Buchberger presented Gröbner bases and his algorithm to compute them, Daniel Lazard presented a new algorithm for solving systems of homogeneous polynomial equations with a computational complexity which is essentially polynomial in the expected number of solutions and thus simply exponential in the number of the unknowns. This algorithm is strongly related with Macaulay's multivariate resultant. Since then, most results in this area are related to one or several of these items either by using or improving one of these algorithms, or by finding algorithms whose complexity is simply exponential in the number of the variables. A body of mathematical theory complementary to symbolic methods called numerical algebraic geometry has been developed over the last several decades. The main computational method is homotopy continuation. This supports, for example, a model of floating point computation for solving problems of algebraic geometry. Gröbner basis A Gröbner basis is a system of generators of a polynomial ideal whose computation allows the deduction of many properties of the affine algebraic variety defined by the ideal. Given an ideal I defining an algebraic set V: V is empty (over an algebraically closed extension of the basis field), if and only if the Gröbner basis for any monomial ordering is reduced to {1}. By means of the Hilbert series one may compute the dimension and the degree of V from any Gröbner basis of I for a monomial ordering refining the total degree. If the dimension of V is 0, one may compute the points (finite in number) of V from any Gröbner basis of I (see Systems of polynomial equations). A Gröbner basis computation allows one to remove from V all irreducible components which are contained in a given hypersurface. A Gröbner basis computation allows one to compute the Zariski closure of the image of V by the projection on the k first coordinates, and the subset of the image where the projection is not proper. More generally Gröbner basis computations allow one to compute the Zariski closure of the image and the critical points of a rational function of V into another affine variety. Gröbner basis computations do not allow one to compute directly the primary decomposition of I nor the prime ideals defining the irreducible components of V, but most algorithms for this involve Gröbner basis computation. The algorithms which are not based on Gröbner bases use regular chains but may need Gröbner bases in some exceptional situations. Gröbner bases are deemed to be difficult to compute. In fact they may contain, in the worst case, polynomials whose degree is doubly exponential in the number of variables and a number of polynomials which is also doubly exponential. However, this is only a worst case complexity, and the complexity bound of Lazard's algorithm of 1979 may frequently apply. Faugère F5 algorithm realizes this complexity, as it may be viewed as an improvement of Lazard's 1979 algorithm. It follows that the best implementations allow one to compute almost routinely with algebraic sets of degree more than 100. This means that, presently, the difficulty of computing a Gröbner basis is strongly related to the intrinsic difficulty of the problem. Cylindrical algebraic decomposition (CAD) CAD is an algorithm which was introduced in 1973 by G. Collins to implement with an acceptable complexity the Tarski–Seidenberg theorem on quantifier elimination over the real numbers. This theorem concerns the formulas of the first-order logic whose atomic formulas are polynomial equalities or inequalities between polynomials with real coefficients. These formulas are thus the formulas which may be constructed from the atomic formulas by the logical operators and (∧), or (∨), not (¬), for all (∀) and exists (∃). Tarski's theorem asserts that, from such a formula, one may compute an equivalent formula without quantifier (∀, ∃). The complexity of CAD is doubly exponential in the number of variables. This means that CAD allows, in theory, to solve every problem of real algebraic geometry which may be expressed by such a formula, that is almost every problem concerning explicitly given varieties and semi-algebraic sets. While Gröbner basis computation has doubly exponential complexity only in rare cases, CAD has almost always this high complexity. This implies that, unless if most polynomials appearing in the input are linear, it may not solve problems with more than four variables. Since 1973, most of the research on this subject is devoted either to improving CAD or finding alternative algorithms in special cases of general interest. As an example of the state of art, there are efficient algorithms to find at least a point in every connected component of a semi-algebraic set, and thus to test if a semi-algebraic set is empty. On the other hand, CAD is yet, in practice, the best algorithm to count the number of connected components. Asymptotic complexity vs. practical efficiency The basic general algorithms of computational geometry have a double exponential worst case complexity. More precisely, if d is the maximal degree of the input polynomials and n the number of variables, their complexity is at most for some constant c, and, for some inputs, the complexity is at least for another constant c′. During the last 20 years of the 20th century, various algorithms have been introduced to solve specific subproblems with a better complexity. Most of these algorithms have a complexity . Among these algorithms which solve a sub problem of the problems solved by Gröbner bases, one may cite testing if an affine variety is empty and solving nonhomogeneous polynomial systems which have a finite number of solutions. Such algorithms are rarely implemented because, on most entries Faugère's F4 and F5 algorithms have a better practical efficiency and probably a similar or better complexity (probably because the evaluation of the complexity of Gröbner basis algorithms on a particular class of entries is a difficult task which has been done only in a few special cases). The main algorithms of real algebraic geometry which solve a problem solved by CAD are related to the topology of semi-algebraic sets. One may cite counting the number of connected components, testing if two points are in the same components or computing a Whitney stratification of a real algebraic set. They have a complexity of , but the constant involved by O notation is so high that using them to solve any nontrivial problem effectively solved by CAD, is impossible even if one could use all the existing computing power in the world. Therefore, these algorithms have never been implemented and this is an active research area to search for algorithms with have together a good asymptotic complexity and a good practical efficiency. Abstract modern viewpoint The modern approaches to algebraic geometry redefine and effectively extend the range of basic objects in various levels of generality to schemes, formal schemes, ind-schemes, algebraic spaces, algebraic stacks and so on. The need for this arises already from the useful ideas within theory of varieties, e.g. the formal functions of Zariski can be accommodated by introducing nilpotent elements in structure rings; considering spaces of loops and arcs, constructing quotients by group actions and developing formal grounds for natural intersection theory and deformation theory lead to some of the further extensions. Most remarkably, in the late 1950s, algebraic varieties were subsumed into Alexander Grothendieck's concept of a scheme. Their local objects are affine schemes or prime spectra which are locally ringed spaces which form a category which is antiequivalent to the category of commutative unital rings, extending the duality between the category of affine algebraic varieties over a field k, and the category of finitely generated reduced k-algebras. The gluing is along Zariski topology; one can glue within the category of locally ringed spaces, but also, using the Yoneda embedding, within the more abstract category of presheaves of sets over the category of affine schemes. The Zariski topology in the set theoretic sense is then replaced by a Grothendieck topology. Grothendieck introduced Grothendieck topologies having in mind more exotic but geometrically finer and more sensitive examples than the crude Zariski topology, namely the étale topology, and the two flat Grothendieck topologies: fppf and fpqc; nowadays some other examples became prominent including Nisnevich topology. Sheaves can be furthermore generalized to stacks in the sense of Grothendieck, usually with some additional representability conditions leading to Artin stacks and, even finer, Deligne–Mumford stacks, both often called algebraic stacks. Sometimes other algebraic sites replace the category of affine schemes. For example, Nikolai Durov has introduced commutative algebraic monads as a generalization of local objects in a generalized algebraic geometry. Versions of a tropical geometry, of an absolute geometry over a field of one element and an algebraic analogue of Arakelov's geometry were realized in this setup. Another formal generalization is possible to universal algebraic geometry in which every variety of algebras has its own algebraic geometry. The term variety of algebras should not be confused with algebraic variety. The language of schemes, stacks and generalizations has proved to be a valuable way of dealing with geometric concepts and became cornerstones of modern algebraic geometry. Algebraic stacks can be further generalized and for many practical questions like deformation theory and intersection theory, this is often the most natural approach. One can extend the Grothendieck site of affine schemes to a higher categorical site of derived affine schemes, by replacing the commutative rings with an infinity category of differential graded commutative algebras, or of simplicial commutative rings or a similar category with an appropriate variant of a Grothendieck topology. One can also replace presheaves of sets by presheaves of simplicial sets (or of infinity groupoids). Then, in presence of an appropriate homotopic machinery one can develop a notion of derived stack as such a presheaf on the infinity category of derived affine schemes, which is satisfying certain infinite categorical version of a sheaf axiom (and to be algebraic, inductively a sequence of representability conditions). Quillen model categories, Segal categories and quasicategories are some of the most often used tools to formalize this yielding the derived algebraic geometry, introduced by the school of Carlos Simpson, including Andre Hirschowitz, Bertrand Toën, Gabrielle Vezzosi, Michel Vaquié and others; and developed further by Jacob Lurie, Bertrand Toën, and Gabriele Vezzosi. Another (noncommutative) version of derived algebraic geometry, using A-infinity categories has been developed from the early 1990s by Maxim Kontsevich and followers. History Before the 16th century Some of the roots of algebraic geometry date back to the work of the Hellenistic Greeks from the 5th century BC. The Delian problem, for instance, was to construct a length x so that the cube of side x contained the same volume as the rectangular box a2b for given sides a and b. Menaechmus () considered the problem geometrically by intersecting the pair of plane conics ay = x2 and xy = ab. In the 3rd century BC, Archimedes and Apollonius systematically studied additional problems on conic sections using coordinates. Apollonius in the Conics further developed a method that is so similar to analytic geometry that his work is sometimes thought to have anticipated the work of Descartes by some 1800 years. His application of reference lines, a diameter and a tangent is essentially no different from our modern use of a coordinate frame, where the distances measured along the diameter from the point of tangency are the abscissas, and the segments parallel to the tangent and intercepted between the axis and the curve are the ordinates. He further developed relations between the abscissas and the corresponding coordinates using geometric methods like using parabolas and curves. Medieval mathematicians, including Omar Khayyam, Leonardo of Pisa, Gersonides and Nicole Oresme in the Medieval Period , solved certain cubic and quadratic equations by purely algebraic means and then interpreted the results geometrically. The Persian mathematician Omar Khayyám (born 1048 AD) believed that there was a relationship between arithmetic, algebra and geometry. This was criticized by Jeffrey Oaks, who claims that the study of curves by means of equations originated with Descartes in the seventeenth century. Renaissance Such techniques of applying geometrical constructions to algebraic problems were also adopted by a number of Renaissance mathematicians such as Gerolamo Cardano and Niccolò Fontana "Tartaglia" on their studies of the cubic equation. The geometrical approach to construction problems, rather than the algebraic one, was favored by most 16th and 17th century mathematicians, notably Blaise Pascal who argued against the use of algebraic and analytical methods in geometry. The French mathematicians Franciscus Vieta and later René Descartes and Pierre de Fermat revolutionized the conventional way of thinking about construction problems through the introduction of coordinate geometry. They were interested primarily in the properties of algebraic curves, such as those defined by Diophantine equations (in the case of Fermat), and the algebraic reformulation of the classical Greek works on conics and cubics (in the case of Descartes). During the same period, Blaise Pascal and Gérard Desargues approached geometry from a different perspective, developing the synthetic notions of projective geometry. Pascal and Desargues also studied curves, but from the purely geometrical point of view: the analog of the Greek ruler and compass construction. Ultimately, the analytic geometry of Descartes and Fermat won out, for it supplied the 18th century mathematicians with concrete quantitative tools needed to study physical problems using the new calculus of Newton and Leibniz. However, by the end of the 18th century, most of the algebraic character of coordinate geometry was subsumed by the calculus of infinitesimals of Lagrange and Euler. 19th and early 20th century It took the simultaneous 19th century developments of non-Euclidean geometry and Abelian integrals in order to bring the old algebraic ideas back into the geometrical fold. The first of these new developments was seized up by Edmond Laguerre and Arthur Cayley, who attempted to ascertain the generalized metric properties of projective space. Cayley introduced the idea of homogeneous polynomial forms, and more specifically quadratic forms, on projective space. Subsequently, Felix Klein studied projective geometry (along with other types of geometry) from the viewpoint that the geometry on a space is encoded in a certain class of transformations on the space. By the end of the 19th century, projective geometers were studying more general kinds of transformations on figures in projective space. Rather than the projective linear transformations which were normally regarded as giving the fundamental Kleinian geometry on projective space, they concerned themselves also with the higher degree birational transformations. This weaker notion of congruence would later lead members of the 20th century Italian school of algebraic geometry to classify algebraic surfaces up to birational isomorphism. The second early 19th century development, that of Abelian integrals, would lead Bernhard Riemann to the development of Riemann surfaces. In the same period began the algebraization of the algebraic geometry through commutative algebra. The prominent results in this direction are Hilbert's basis theorem and Hilbert's Nullstellensatz, which are the basis of the connection between algebraic geometry and commutative algebra, and Macaulay's multivariate resultant, which is the basis of elimination theory. Probably because of the size of the computation which is implied by multivariate resultants, elimination theory was forgotten during the middle of the 20th century until it was renewed by singularity theory and computational algebraic geometry. 20th century B. L. van der Waerden, Oscar Zariski and André Weil developed a foundation for algebraic geometry based on contemporary commutative algebra, including valuation theory and the theory of ideals. One of the goals was to give a rigorous framework for proving the results of the Italian school of algebraic geometry. In particular, this school used systematically the notion of generic point without any precise definition, which was first given by these authors during the 1930s. In the 1950s and 1960s, Jean-Pierre Serre and Alexander Grothendieck recast the foundations making use of sheaf theory. Later, from about 1960, and largely led by Grothendieck, the idea of schemes was worked out, in conjunction with a very refined apparatus of homological techniques. After a decade of rapid development the field stabilized in the 1970s, and new applications were made, both to number theory and to more classical geometric questions on algebraic varieties, singularities, moduli, and formal moduli. An important class of varieties, not easily understood directly from their defining equations, are the abelian varieties, which are the projective varieties whose points form an abelian group. The prototypical examples are the elliptic curves, which have a rich theory. They were instrumental in the proof of Fermat's Last Theorem and are also used in elliptic-curve cryptography. In parallel with the abstract trend of the algebraic geometry, which is concerned with general statements about varieties, methods for effective computation with concretely-given varieties have also been developed, which lead to the new area of computational algebraic geometry. One of the founding methods of this area is the theory of Gröbner bases, introduced by Bruno Buchberger in 1965. Another founding method, more specially devoted to real algebraic geometry, is the cylindrical algebraic decomposition, introduced by George E. Collins in 1973. See also: derived algebraic geometry. Analytic geometry An analytic variety is defined locally as the set of common solutions of several equations involving analytic functions. It is analogous to the included concept of real or complex algebraic variety. Any complex manifold is an analytic variety. Since analytic varieties may have singular points, not all analytic varieties are manifolds. Modern analytic geometry is essentially equivalent to real and complex algebraic geometry, as has been shown by Jean-Pierre Serre in his paper GAGA, the name of which is French for Algebraic geometry and analytic geometry. Nevertheless, the two fields remain distinct, as the methods of proof are quite different and algebraic geometry includes also geometry in finite characteristic. Applications Algebraic geometry now finds applications in statistics, control theory, robotics, error-correcting codes, phylogenetics and geometric modelling. There are also connections to string theory, game theory, graph matchings, solitons and integer programming. See also Glossary of classical algebraic geometry Important publications in algebraic geometry List of algebraic surfaces Noncommutative algebraic geometry Notes References Sources Further reading Some classic textbooks that predate schemes Modern textbooks that do not use the language of schemes Textbooks in computational algebraic geometry Textbooks and references for schemes External links Foundations of Algebraic Geometry by Ravi Vakil, 808 pp. Algebraic geometry entry on PlanetMath English translation of the van der Waerden textbook The Stacks Project, an open source textbook and reference work on algebraic stacks and algebraic geometry Fields of mathematics

1998

https://en.wikipedia.org/wiki/Austin%2C%20Texas

Austin, Texas

Austin ( , ) is the capital city of the U.S. state of Texas, as well as the seat and most populous city of Travis County, with portions extending into Hays and Williamson counties. Incorporated on December 27, 1839, it is the 10th most populous city in the United States, the 4th most populous city in Texas, and the 2nd most populous state capital city. It has been one of the fastest growing large cities in the United States since 2010. Downtown Austin and Downtown San Antonio are approximately apart, and both fall along the Interstate 35 corridor. Austin is the southernmost state capital in the contiguous United States and is considered a Beta-level global city as categorized by the Globalization and World Cities Research Network. As of 2021, Austin had an estimated population of 964,177, up from 961,855 at the 2020 census. The city is the cultural and economic center of the metropolitan statistical area, which had an estimated population of 2,421,115 as of July 1, 2022. Located in within the greater Texas Hill Country, it is home to numerous lakes, rivers, and waterways, including Lady Bird Lake and Lake Travis on the Colorado River, Barton Springs, McKinney Falls, and Lake Walter E. Long. Residents of Austin are known as Austinites. They include a diverse mix of government employees, college students, musicians, high-tech workers, and blue-collar workers. The city's official slogan promotes Austin as "The Live Music Capital of the World", a reference to the city's many musicians and live music venues, as well as the long-running PBS TV concert series Austin City Limits. The city also adopted "Silicon Hills" as a nickname in the 1990s due to a rapid influx of technology and development companies. In recent years, some Austinites have adopted the unofficial slogan "Keep Austin Weird", which refers to the desire to protect small, unique, and local businesses from being overrun by large corporations. Since the late 19th century, Austin has also been known as the "City of the Violet Crown", because of the colorful glow of light across the hills just after sunset. In 1987, Austin originated and remains the site for South by Southwest (stylized as SXSW and colloquially referred to as South By), an annual conglomeration of parallel film, interactive media, and music festivals and conferences that take place in mid-March. Emerging from a strong economic focus on government and education, since the 1990s, Austin has become a center for technology and business. The technology roots in Austin can be traced back to the 1960s when Tracor (now BAE Systems), a major defense electronics contractor, began operation in the city in 1962. IBM followed in 1967, opening a facility to produce its Selectric typewriters. Texas Instruments setup in Austin two years later, Motorola (now NXP Semiconductors) started semiconductor chip manufacturing in 1974. BAE Systems, IBM, and NXP Semiconductors still have campuses and manufacturing operations in Austin as of 2022. A number of Fortune 500 companies have headquarters or regional offices in Austin, including 3M, Advanced Micro Devices (AMD), Amazon, Apple, Facebook (Meta), Google, IBM, Intel, NXP Semiconductors, Oracle, Tesla, Texas Instruments, and Whole Foods Market. Dell's worldwide headquarters is located in the nearby suburb of Round Rock. With regard to education, Austin is the home of the University of Texas at Austin, which is one of the largest universities in the U.S., with over 50,000 students. In 2021, Austin became home to the Austin FC, the first (and currently only) major professional sports team in the city. History Austin, Travis County and Williamson County have been the site of human habitation since at least 9200 BC. The area's earliest known inhabitants lived during the late Pleistocene (Ice Age) and are linked to the Clovis culture around 9200 BC (over 11,200 years ago), based on evidence found throughout the area and documented at the much-studied Gault Site, midway between Georgetown and Fort Cavazos. When settlers arrived from Europe, the Tonkawa tribe inhabited the area. The Comanches and Lipan Apaches were also known to travel through the area. Spanish colonists, including the Espinosa-Olivares-Aguirre expedition, traveled through the area, though few permanent settlements were created for some time. In 1730, three Catholic missions from East Texas were combined and reestablished as one mission on the south side of the Colorado River, in what is now Zilker Park, in Austin. The mission was in this area for only about seven months, and then was moved to San Antonio de Béxar and split into three missions. During the 1830s, pioneers began to settle the area in central Austin along the Colorado River. Spanish forts were established in what are now Bastrop and San Marcos. Following Mexico's independence, new settlements were established in Central Texas, but growth in the region was stagnant because of conflicts with the regional Native Americans. In 1835–1836, Texans fought and won independence from Mexico. Texas thus became an independent country with its own president, congress, and monetary system. In 1839, the Texas Congress formed a commission to seek a site for a new capital of the Republic of Texas to replace Houston. When he was Vice President of Texas, Mirabeau B. Lamar had visited the area during a buffalo-hunting expedition between 1837 and 1838. He advised the commissioners to consider the area on the north bank of the Colorado River (near the present-day Congress Avenue Bridge), noting the area's hills, waterways, and pleasant surroundings. It was seen as a convenient crossroads for trade routes between Santa Fe and Galveston Bay, as well as routes between northern Mexico and the Red River. In 1839, the site was chosen, and was briefly incorporated under the name "Waterloo". Shortly afterward, the name was changed to Austin in honor of Stephen F. Austin, the "Father of Texas" and the republic's first secretary of state. The city grew throughout the 19th century and became a center for government and education with the construction of the Texas State Capitol and the University of Texas at Austin. Edwin Waller was picked by Lamar to survey the village and draft a plan laying out the new capital. The original site was narrowed to that fronted the Colorado River between two creeks, Shoal Creek and Waller Creek, which was later named in his honor. Waller and a team of surveyors developed Austin's first city plan, commonly known as the Waller Plan, dividing the site into a 14-block grid plan bisected by a broad north–south thoroughfare, Congress Avenue, running up from the river to Capital Square, where the new Texas State Capitol was to be constructed. A temporary one-story capitol was erected on the corner of Colorado and 8th Streets. On August 1, 1839, the first auction of 217 out of 306 lots total was held. The Waller Plan designed and surveyed now forms the basis of downtown Austin. In 1840, a series of conflicts between the Texas Rangers and the Comanches, known as the Council House Fight and the Battle of Plum Creek, pushed the Comanches westward, mostly ending conflicts in Central Texas. Settlement in the area began to expand quickly. Travis County was established in 1840, and the surrounding counties were mostly established within the next two decades. Initially, the new capital thrived but Lamar's political enemy, Sam Houston, used two Mexican army incursions to San Antonio as an excuse to move the government. Sam Houston fought bitterly against Lamar's decision to establish the capital in such a remote wilderness. The men and women who traveled mainly from Houston to conduct government business were intensely disappointed as well. By 1840, the population had risen to 856, nearly half of whom fled Austin when Congress recessed. The resident African American population listed in January of this same year was 176. The fear of Austin's proximity to the Indians and Mexico, which still considered Texas a part of their land, created an immense motive for Sam Houston, the first and third President of the Republic of Texas, to relocate the capital once again in 1841. Upon threats of Mexican troops in Texas, Houston raided the Land Office to transfer all official documents to Houston for safe keeping in what was later known as the Archive War, but the people of Austin would not allow this unaccompanied decision to be executed. The documents stayed, but the capital would temporarily move from Austin to Houston to Washington-on-the-Brazos. Without the governmental body, Austin's population declined to a low of only a few hundred people throughout the early 1840s. The voting by the fourth President of the Republic, Anson Jones, and Congress, who reconvened in Austin in 1845, settled the issue to keep Austin the seat of government, as well as annex the Republic of Texas into the United States. In 1860, 38% of Travis County residents were slaves. In 1861, with the outbreak of the American Civil War, voters in Austin and other Central Texas communities voted against secession. However, as the war progressed and fears of attack by Union forces increased, Austin contributed hundreds of men to the Confederate forces. The African American population of Austin swelled dramatically after the enforcement of the Emancipation Proclamation in Texas by Union General Gordon Granger at Galveston, in an event commemorated as Juneteenth. Black communities such as Wheatville, Pleasant Hill, and Clarksville were established, with Clarksville being the oldest surviving freedomtown ‒ the original post-Civil War settlements founded by former African-American slaves ‒ west of the Mississippi River. In 1870, blacks made up 36.5% of Austin's population. The postwar period saw dramatic population and economic growth. The opening of the Houston and Texas Central Railway (H&TC) in 1871 turned Austin into the major trading center for the region, with the ability to transport both cotton and cattle. The Missouri, Kansas & Texas (MKT) line followed close behind. Austin was also the terminus of the southernmost leg of the Chisholm Trail, and "drovers" pushed cattle north to the railroad. Cotton was one of the few crops produced locally for export, and a cotton gin engine was located downtown near the trains for "ginning" cotton of its seeds and turning the product into bales for shipment. However, as other new railroads were built through the region in the 1870s, Austin began to lose its primacy in trade to the surrounding communities. In addition, the areas east of Austin took over cattle and cotton production from Austin, especially in towns like Hutto and Taylor that sit over the blackland prairie, with its deep, rich soils for producing cotton and hay. In September 1881, Austin public schools held their first classes. The same year, Tillotson Collegiate and Normal Institute (now part of Huston–Tillotson University) opened its doors. The University of Texas held its first classes in 1883, although classes had been held in the original wooden state capitol for four years before. During the 1880s, Austin gained new prominence as the state capitol building was completed in 1888 and claimed as the seventh largest building in the world. In the late 19th century, Austin expanded its city limits to more than three times its former area, and the first granite dam was built on the Colorado River to power a new street car line and the new "moon towers". The first dam washed away in a flood on April 7, 1900. In the late 1920s and 1930s, Austin implemented the 1928 Austin city plan through a series of civic development and beautification projects that created much of the city's infrastructure and many of its parks. In addition, the state legislature established the Lower Colorado River Authority (LCRA) that, along with the city of Austin, created the system of dams along the Colorado River to form the Highland Lakes. These projects were enabled in large part because the Public Works Administration provided Austin with greater funding for municipal construction projects than other Texas cities. During the early twentieth century, a three-way system of social segregation emerged in Austin, with Anglos, African Americans and Mexicans being separated by custom or law in most aspects of life, including housing, health care, and education. Deed restrictions also played an important role in residential segregation. After 1935 most housing deeds prohibited African Americans (and sometimes other nonwhite groups) from using land. Combined with the system of segregated public services, racial segregation increased in Austin during the first half of the twentieth century, with African Americans and Mexicans experiencing high levels of discrimination and social marginalization. In 1940, the destroyed granite dam on the Colorado River was finally replaced by a hollow concrete dam that formed Lake McDonald (now called Lake Austin) and which has withstood all floods since. In addition, the much larger Mansfield Dam was built by the LCRA upstream of Austin to form Lake Travis, a flood-control reservoir. In the early 20th century, the Texas Oil Boom took hold, creating tremendous economic opportunities in Southeast Texas and North Texas. The growth generated by this boom largely passed by Austin at first, with the city slipping from fourth largest to tenth largest in Texas between 1880 and 1920. After a severe lull in economic growth from the Great Depression, Austin resumed its steady development. Following the mid-20th century, Austin became established as one of Texas' major metropolitan centers. In 1970, the U.S. Census Bureau reported Austin's population as 14.5% Hispanic, 11.9% black, and 73.4% non-Hispanic white. In the late 20th century, Austin emerged as an important high tech center for semiconductors and software. The University of Texas at Austin emerged as a major university. The 1970s saw Austin's emergence in the national music scene, with local artists such as Willie Nelson, Asleep at the Wheel, and Stevie Ray Vaughan and iconic music venues such as the Armadillo World Headquarters. Over time, the long-running television program Austin City Limits, its namesake Austin City Limits Festival, and the South by Southwest music festival solidified the city's place in the music industry. Geography Austin, the southernmost state capital of the contiguous 48 states, is located in Central Texas on the Colorado River. Austin is northwest of Houston, south of Dallas and northeast of San Antonio. Austin occupies a total area of . Approximately of this area is water. Austin is situated at the foot of the Balcones Escarpment, on the Colorado River, with three artificial lakes within the city limits: Lady Bird Lake (formerly known as Town Lake), Lake Austin (both created by dams along the Colorado River), and Lake Walter E. Long that is partly used for cooling water for the Decker Power Plant. Mansfield Dam and the foot of Lake Travis are located within the city's limits. Lady Bird Lake, Lake Austin, and Lake Travis are each on the Colorado River. The elevation of Austin varies from to approximately above sea level. Due to the fact it straddles the Balcones Fault, much of the eastern part of the city is flat, with heavy clay and loam soils, whereas the western part and western suburbs consist of rolling hills on the edge of the Texas Hill Country. Because the hills to the west are primarily limestone rock with a thin covering of topsoil, portions of the city are frequently subjected to flash floods from the runoff caused by thunderstorms. To help control this runoff and to generate hydroelectric power, the Lower Colorado River Authority operates a series of dams that form the Texas Highland Lakes. The lakes also provide venues for boating, swimming, and other forms of recreation within several parks on the lake shores. Austin is located at the intersection of four major ecological regions, and is consequently a temperate-to-hot green oasis with a highly variable climate having some characteristics of the desert, the tropics, and a wetter climate. The area is very diverse ecologically and biologically, and is home to a variety of animals and plants. Notably, the area is home to many types of wildflowers that blossom throughout the year but especially in the spring. This includes the popular bluebonnets, some planted by "Lady Bird" Johnson, wife of former President Lyndon B. Johnson. The soils of Austin range from shallow, gravelly clay loams over limestone in the western outskirts to deep, fine sandy loams, silty clay loams, silty clays or clays in the city's eastern part. Some of the clays have pronounced shrink-swell properties and are difficult to work under most moisture conditions. Many of Austin's soils, especially the clay-rich types, are slightly to moderately alkaline and have free calcium carbonate. Cityscape Austin's skyline historically was modest, dominated by the Texas State Capitol and the University of Texas Main Building. However, since the 2000s, many new high-rise towers have been constructed. Austin is currently undergoing a skyscraper boom, which includes recent construction on new office, hotel and residential buildings. Downtown's buildings are somewhat spread out, partly due to a set of zoning restrictions that preserve the view of the Texas State Capitol from various locations around Austin, known as the Capitol View Corridors. At night, parts of Austin are lit by "artificial moonlight" from moonlight towers built to illuminate the central part of the city. The moonlight towers were built in the late 19th century and are now recognized as historic landmarks. Only 15 of the 31 original innovative towers remain standing in Austin, but none remain in any of the other cities where they were installed. The towers are featured in the 1993 film Dazed and Confused. Downtown The central business district of Austin is home to the tallest condo towers in the state, with The Independent (58 stories and tall) and The Austonian (topping out at 56 floors and tall). The Independent became the tallest all-residential building in the U.S. west of Chicago when topped out in 2018. In 2005, then-Mayor Will Wynn set out a goal of having 25,000 people living downtown by 2015. Although downtown's growth did not meet this goal, downtown's residential population did surge from an estimated 5,000 in 2005 to 12,000 in 2015. The skyline has drastically changed in recent years, and the residential real estate market has remained relatively strong. , there were 31 high rise projects either under construction, approved or planned to be completed in Austin's downtown core between 2017 and 2020. Sixteen of those were set to rise above tall, including four above 600', and eight above 500'. An additional 15 towers were slated to stand between 300' and 399' tall. Climate Austin is located within the middle of a unique, narrow transitional zone between the dry deserts of the American Southwest and the lush, green, more humid regions of the American Southeast. Its climate, topography, and vegetation share characteristics of both. Officially, Austin has a humid subtropical climate (Cfa) under the Köppen climate classification. This climate is typified by long, very hot summers, short, mild winters, and warm to hot spring and fall seasons in-between. Austin averages of annual rainfall distributed mostly evenly throughout the year, though spring and fall are the wettest seasons. Sunshine is common during all seasons, with 2,650 hours, or 60.3% of the possible total, of bright sunshine per year. Summers in Austin are very hot, with average July and August highs frequently reaching the high-90s (34–36 °C) or above. Highs reach on 123 days per year, of which 29 days reach ; all years in the 1991-2020 period recorded at least 1 day of the latter. The average daytime high is or warmer between March 1 and November 21, rising to or warmer between April 14 and October 24, and reaching or warmer between May 30 and September 18. The highest ever recorded temperature was occurring on September 5, 2000, and August 28, 2011. An uncommon characteristic of Austin's climate is its highly variable humidity, which fluctuates frequently depending on the shifting patterns of air flow and wind direction. It is common for a lengthy series of warm, dry, low-humidity days to be occasionally interrupted by very warm and humid days, and vice versa. Humidity rises with winds from the east or southeast, when the air drifts inland from the Gulf of Mexico, but decreases significantly with winds from the west or southwest, bringing air flowing from Chihuahuan Desert areas of West Texas or northern Mexico. Winters in Austin are mild, although occasional short-lived bursts of cold weather known as "Blue Northers" can occur. January is the coolest month with an average daytime high of . The overnight low drops to or below freezing 12 times per year, and sinks below during 76 evenings per year, mostly between mid-December and mid-February. The average first and last dates for a freeze are December 1 and February 15, giving Austin an average growing season of 288 days, and the coldest temperature of the year is normally about under the 1991-2020 climate normals, putting Austin in USDA zone 9a. Conversely, winter months also produce warm days on a regular basis. On average, 10 days in January reach or exceed and 1 day reaches ; during the 1991-2020 period, all Januarys had at least 1 day with a high of or more, and most (60%) had at least 1 day with a high of or more. The lowest ever recorded temperature in the city was on January 31, 1949. Roughly every two years Austin experiences an ice storm that freezes roads over and cripples travel in the city for 24 to 48 hours. When Austin received of ice on January 24, 2014, there were 278 vehicular collisions. Similarly, snowfall is rare in Austin. A snow event of on February 4, 2011, caused more than 300 car crashes. The most recent major snow event occurred February 14–15, 2021, when of snow fell at Austin's Camp Mabry, the largest two-day snowfall since records began being kept in 1948. Typical of Central Texas, severe weather in Austin is a threat that can strike during any season. However, it is most common during the spring. According to most classifications, Austin lies within the extreme southern periphery of Tornado Alley, although many sources place Austin outside of Tornado Alley altogether. Consequently, tornadoes strike Austin less frequently than areas farther to the north. However, severe weather and/or supercell thunderstorms can occur multiple times per year, bringing damaging winds, lightning, heavy rain, and occasional flash flooding to the city. The deadliest storm to ever strike city limits was the twin tornadoes storm of May 4, 1922, while the deadliest tornado outbreak to ever strike the metro area was the Central Texas tornado outbreak of May 27, 1997. Natural disasters 2011 drought From October 2010 through September 2011, both major reporting stations in Austin, Camp Mabry and Bergstrom Int'l, had the least rainfall of a water year on record, receiving less than a third of normal precipitation. This was a result of La Niña conditions in the eastern Pacific Ocean where water was significantly cooler than normal. David Brown, a regional official with the National Oceanic and Atmospheric Administration, explained that "these kinds of droughts will have effects that are even more extreme in the future, given a warming and drying regional climate." The drought, coupled with exceedingly high temperatures throughout the summer of 2011, caused many wildfires throughout Texas, including notably the Bastrop County Complex Fire in neighboring Bastrop, Texas. 2018 flooding and water crisis In the fall of 2018, Austin and surrounding areas received heavy rainfall and flash flooding following Hurricane Sergio. The Lower Colorado River Authority opened four floodgates of the Mansfield Dam after Lake Travis was recorded at 146% full at . From October 22 to October 29, 2018, the City of Austin issued a mandatory citywide boil-water advisory after the Highland Lakes, home to the city's main water supply, became overwhelmed by unprecedented amounts of silt, dirt, and debris that had washed in from the Llano River. Austin Water, the city's water utility, has the capacity to process up to 300 million gallons of water per day; however, the elevated level of turbidity reduced output to only 105 million gallons per day. Since Austin residents consumed an average of 120 million gallons of water per day, the infrastructure was not able to keep up with demand. 2021 winter storm In February 2021, Winter Storm Uri dropped prolific amounts of snow across Texas and Oklahoma, including Austin. The Austin area received a total of of snowfall between February 14 and 15, with snow cover persisting until February 20. This marked the longest time the area had had more than of snow, with the previous longest time being three days in January 1985. Lack of winterization in natural gas power plants, which supply a large amount of power to the Texas grid, and increased energy demand caused ERCOT and Austin Energy to enact rolling blackouts in order to avoid total grid collapse between February 15 and February 18. Initial rolling blackouts were to last for a maximum of 40 minutes, however lack of energy production caused many blackouts to last for much longer, at the peak of the blackouts an estimated 40% of Austin Energy homes were without power. Starting on February 15, Austin Water received reports of pipe breaks, hourly water demand increased from 150 million gallons per day (MGD) on February 15 to a peak hourly demand of 260 MGD on February 16. On the morning of February 17 demand increased to 330 MGD, the resulting drop of water pressure caused the Austin area to enter into a boil-water advisory which would last until water pressure was restored on February 23. 2023 winter storm Beginning January 30, 2023 the City of Austin experienced a winter freeze which left 170,000 Austin Energy customers without electricity or heat for several days. The slow pace of repairs and lack of public information from City officials frustrated many residents. A week after the freeze and when Austin City Council members were proposing to evaluate his employment, City Manager Spencer Cronk finally apologized. On Thursday February 16, 2023, Cronk was fired by the Austin City Council for the city's response to the winter storm. Former City Manager Jesus Garcia was named Interim City Manager Demographics In 2020, there were 961,855 people, up from the 2000 United States census tabulation where there were people, households, and families residing in the city. In 2000, the population density was . There were dwelling units at an average density of . There were households, out of which 26.8% had children under the age of 18 living with them, 38.1% were married couples living together, 10.8% had a female householder with no husband present, and 46.7% were non-families. 32.8% of all households were made up of individuals, and 4.6% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 3.14. In the city, 22.5% of the population was under the age of 18, 16.6% was from 18 to 24, 37.1% from 25 to 44, 17.1% from 45 to 64, and 6.7% were 65 years of age or older. The median age was 30 years. For every 100 females, there were 105.8 males. The median income for a household in the city was , and the median income for a family was $. Males had a median income of $ compared to $ for females. The per capita income for the city was $. About 9.1% of families and 14.4% of the population were below the poverty line, including 16.5% of those under age 18 and 8.7% of those age 65 or over. The median house price was $ in 2009, and it has increased every year since 2004. The median value of a house which the owner occupies was $318,400 in 2019—higher than the average American home value of $240,500. Race and ethnicity According to the 2010 United States census, the racial composition of Austin was 68.3% White (48.7% non-Hispanic whites), 35.1% Hispanic or Latino (29.1% Mexican, 0.5% Puerto Rican, 0.4% Cuban, 5.1% Other), 8.1% African American, 6.3% Asian (1.9% Indian, 1.5% Chinese, 1.0% Vietnamese, 0.7% Korean, 0.3% Filipino, 0.2% Japanese, 0.8% Other), 0.9% American Indian, 0.1% Native Hawaiian and Other Pacific Islander, and 3.4% two or more races. According to the 2020 United States census, the racial composition of Austin was 72.6% White (48.3% non-Hispanic whites), 33.9% Hispanic or Latino, 7.8% African American, 7.6% Asian, 0.7% American Indian, 0.1% Native Hawaiian and Other Pacific Islander, and 3.4% two or more races. A 2014 University of Texas study stated that Austin was the only U.S. city with a fast growth rate between 2000 and 2010 with a net loss in African Americans. , Austin's African American and non-Hispanic white percentage share of the total population was declining despite the actual numbers of both ethnic groups increasing, as the rapid growth of the Latino or Hispanic and Asian populations has outpaced all other ethnic groups in the city. Austin's non-Hispanic white population first dropped below 50% in 2005. Sexual orientation and gender identity According to a survey completed in 2014 by Gallup, it is estimated that 5.3% of residents in the Austin metropolitan area identify as lesbian, gay, bisexual, or transgender. The Austin metropolitan area had the third-highest rate in the nation. Religion According to Sperling's BestPlaces, 52.4% of Austin's population are religious. The majority of Austinites identified themselves as Christians, about 25.2% of whom claimed affiliation with the Catholic Church. The city's Catholic population is served by the Roman Catholic Diocese of Austin, headquartered at the Cathedral of Saint Mary. Nationwide, 23% of Americans identified as Catholic in 2016. Other significant Christian groups in Austin include Baptists (8.7%), followed by Methodists (4.3%), Latter-day Saints (1.5%), Episcopalians or Anglicans (1.0%), Lutherans (0.8%), Presbyterians (0.6%), Pentecostals (0.3%), and other Christians such as the Disciples of Christ and Eastern Orthodox Church (7.1%). The second largest religion Austinites identify with is Islam (1.7%); roughly 0.8% of Americans nationwide claimed affiliation with the Islamic faith. The dominant branch of Islam is Sunni Islam. Established in 1977, the largest mosque in Austin is the Islamic Center of Greater Austin. The community is affiliated with the Islamic Society of North America. The same study says that eastern faiths including Buddhism, Sikhism, and Hinduism made up 0.9% of the city's religious population. Several Hindu temples exist in the Austin Metropolitan area with the most notable one being Radha Madhav Dham. Judaism forms less than 0.1% of the religious demographic in Austin. Orthodox, Reform, and Conservative congregations are present in the community. In addition to those religious groups, Austin is also home to an active secular humanist community, hosting nationwide television shows and charity work. Homelessness As of 2019, there were 2,255 individuals experiencing homelessness in Travis County. Of those, 1,169 were sheltered and 1,086 were unsheltered. In September 2019, the Austin City Council approved $62.7 million for programs aimed at homelessness, which includes housing displacement prevention, crisis mitigation, and affordable housing; the city council also earmarked $500,000 for crisis services and encampment cleanups. In June 2019, following a federal court ruling on homelessness sleeping in public, the Austin City Council lifted a 25-year-old ban on camping, sitting, or lying down in public unless doing so causes an obstruction. The resolution also included the approval of a new housing-focused shelter in South Austin. In early October 2019, Texas Governor Greg Abbott sent a letter to Mayor Steve Adler threatening to deploy state resources to combat the camping ban repeal. On October 17, 2019, the City Council revised the camping ordinance, which imposed increased restrictions on sidewalk camping. In November 2019, the State of Texas opened a temporary homeless encampment on a former vehicle storage yard owned by the Texas Department of Transportation. In May 2021, the camping ban was reinstated after a ballot proposition was approved by 57% of voters. The ban introduces penalties for camping, sitting, or lying down on a public sidewalk or sleeping outdoors in or near Downtown Austin or the area around the University of Texas campus. The ordinance also prohibits solicitation at certain locations. Economy The Greater Austin metropolitan statistical area had a gross domestic product (GDP) of $86 billion in 2010. Austin is considered to be a major center for high tech. Thousands of graduates each year from the engineering and computer science programs at the University of Texas at Austin provide a steady source of employees that help to fuel Austin's technology and defense industry sectors. The region's rapid growth has led Forbes to rank the Austin metropolitan area number one among all big cities for jobs for 2012 in their annual survey and WSJ Marketwatch to rank the area number one for growing businesses. As a result of the high concentration of high-tech companies in the region, Austin was strongly affected by the dot-com boom in the late 1990s and subsequent bust. Austin's largest employers include the Austin Independent School District, the City of Austin, Dell, the U.S. Federal Government, NXP Semiconductors, IBM, St. David's Healthcare Partnership, Seton Family of Hospitals, the State of Texas, the Texas State University, and the University of Texas at Austin. Other high-tech companies with operations in Austin include 3M, Apple, Amazon, AMD, Apartment Ratings, Applied Materials, Arm, Bigcommerce, BioWare, Blizzard Entertainment, Buffalo Technology, Cirrus Logic, Cisco Systems, Dropbox, eBay, Electronic Arts, Flextronics, Facebook, Google, Hewlett-Packard, Hoover's, HomeAway, HostGator, Intel Corporation, National Instruments, Nintendo, Nvidia, Oracle, PayPal, Polycom, Qualcomm, Rackspace, RetailMeNot, Rooster Teeth, Samsung Group, Silicon Labs, Spansion, United Devices, VMware, Xerox, and Zoho Corporation. In 2010, Facebook accepted a grant to build a downtown office that could bring as many as 200 jobs to the city. The proliferation of technology companies has led to the region's nickname, "Silicon Hills", and spurred development that greatly expanded the city. Tesla, Inc., an electric vehicle and clean energy company has its corporate headquarters in Austin inside Gigafactory Texas, a large vehicle assembly plant which employs over 20,000 people. The company expects to eventually have a staff of 60,000 in the Austin area as production ramps up. Austin is also emerging as a hub for pharmaceutical and biotechnology companies; the city is home to about 85 of them. In 2004, the city was ranked by the Milken Institute as the No. 12 biotech and life science center in the United States and in 2018, CBRE Group ranked Austin as #3 emerging life sciences cluster. Companies such as Hospira, Pharmaceutical Product Development, and ArthroCare Corporation are located there. Whole Foods Market, an international grocery store chain specializing in fresh and packaged food products, was founded and is headquartered in Austin. Other companies based in Austin include NXP Semiconductors, GoodPop, Temple-Inland, Sweet Leaf Tea Company, Keller Williams Realty, National Western Life, GSD&M, Dimensional Fund Advisors, Golfsmith, Forestar Group, EZCorp, Outdoor Voices, Tito's Vodka, Indeed, Speak Social, and YETI. In 2018, Austin metro-area companies saw a total of $1.33 billion invested. In 2018, Austin's venture capital investments accounted for more than 60 percent of Texas' total investments. Culture and contemporary life "Keep Austin Weird" has been a local motto for years, featured on bumper stickers and T-shirts. This motto has not only been used in promoting Austin's eccentricity and diversity, but is also meant to bolster support of local independent businesses. According to the 2010 book Weird City the phrase was begun by a local Austin Community College librarian, Red Wassenich, and his wife, Karen Pavelka, who were concerned about Austin's "rapid descent into commercialism and overdevelopment." The slogan has been interpreted many ways since its inception, but remains an important symbol for many Austinites who wish to voice concerns over rapid growth and development. Austin has a long history of vocal citizen resistance to development projects perceived to degrade the environment, or to threaten the natural and cultural landscapes. According to the Nielsen Company, adults in Austin read and contribute to blogs more than those in any other U.S. metropolitan area. Austin residents have the highest Internet usage in all of Texas. In 2013, Austin was the most active city on Reddit, having the largest number of views per capita. Austin was selected as the No. 2 Best Big City in "Best Places to Live" by Money magazine in 2006, and No. 3 in 2009, and also the "Greenest City in America" by MSN. South Congress is a shopping district stretching down South Congress Avenue from Downtown. This area is home to coffee shops, eccentric stores, restaurants, food trucks, trailers, and festivals. It prides itself on "Keeping Austin Weird," especially with development in the surrounding area(s). Many Austinites attribute its enduring popularity to the magnificent and unobstructed view of the Texas State Capitol. The Rainey Street Historic District is a neighborhood in Downtown Austin formerly consisting of bungalow style homes built in the early 20th century. Since the early 2010s, the former working class residential street has turned into a popular nightlife district. Much of the historic homes have been renovated into hotels, condominiums, bars and restaurants, many of which feature large porches and outdoor yards for patrons. The Rainey Street district is also home to the Emma S. Barrientos Mexican American Cultural Center. Austin has been part of the UNESCO Creative Cities Network under Media Arts the category. Old Austin "Old Austin" is an adage often used by nostalgic natives. The term "Old Austin" refers to a time when the city was smaller and more bohemian with a considerably lower cost of living and better known for its lack of traffic, hipsters, and urban sprawl. It is often employed by longtime residents expressing displeasure at the rapidly changing culture, or when referencing nostalgia of Austin culture. The growth and popularity of Austin can be seen by the expansive development taking place in its downtown landscape. This growth can have a negative impact on longtime small businesses that cannot keep up with the expenses associated with gentrification and the rising cost of real estate. A former Austin musician, Dale Watson, described his move away from Austin, "I just really feel the city has sold itself. Just because you're going to get $45 million for a company to come to town – if it's not in the best interest of the town, I don't think they should do it. This city was never about money. It was about quality of life." Though much is changing rapidly in Austin, businesses such as Thundercloud Subs are thought by many to maintain classic Austin business cultural sentiments unique to the history of the city; as Diana Burgess stated, "I definitely appreciate that they haven't raised their prices a ton or made things super fancy. I think it speaks to that original Old Austin vibe. A lot of us that grew up here really appreciate that." Annual cultural events The O. Henry House Museum hosts the annual O. Henry Pun-Off, a pun contest where the successful contestants exhibit wit akin to that of the author William Sydney Porter. Other annual events include Eeyore's Birthday Party, Spamarama, Austin Pride Festival & Parade in August, the Austin Reggae Festival in April, Kite Festival, Texas Craft Brewers Festival in September, Art City Austin in April, East Austin Studio Tour in November, and Carnaval Brasileiro in February. Sixth Street features annual festivals such as the Pecan Street Festival and Halloween night. The three-day Austin City Limits Music Festival has been held in Zilker Park every year since 2002. Every year around the end of March and the beginning of April, Austin is home to "Texas Relay Weekend." Austin's Zilker Park Tree is a Christmas display made of lights strung from the top of a Moonlight tower in Zilker Park. The Zilker Tree is lit in December along with the "Trail of Lights," an Austin Christmas tradition. The Trail of Lights was canceled four times, first starting in 2001 and 2002 due to the September 11 Attacks, and again in 2010 and 2011 due to budget shortfalls, but the trail was turned back on for the 2012 holiday season. Cuisine and breweries Austin is perhaps best known for its Texas barbecue and Tex-Mex cuisine. Franklin Barbecue is perhaps Austin's most famous barbecue restaurant; the restaurant has sold out of brisket every day since its establishment. Breakfast tacos and queso are popular food items in the city; Austin is sometimes called the "home of the breakfast taco." Kolaches are a common pastry in Austin bakeries due to the large Czech and German immigrant population in Texas. The Oasis Restaurant is the largest outdoor restaurant in Texas, which promotes itself as the "Sunset Capital of Texas" with its terraced views looking West over Lake Travis. P. Terry's, an Austin-based fast food burger chain, has a loyal following among Austinites. Some other Austin-based chain restaurants include Amy's Ice Creams, Chuy's, DoubleDave's Pizzaworks, and Schlotzky's. Austin is also home to a large number of food trucks, with 1,256 food trucks operating in 2016. The city of Austin has the second-largest number of food trucks per capita in the United States. Austin's first food hall, "Fareground," features a number of Austin-based food vendors and a bar in the ground level and courtyard of One Congress Plaza. Austin has a large craft beer scene, with over 50 microbreweries in the metro area. Drinks publication VinePair named Austin as the "top beer destination in the world" in 2019. Notable Austin-area breweries include Jester King Brewery, Live Oak Brewing Company, and Real Ale Brewing Company. Music As Austin's official slogan is The Live Music Capital of the World, the city has a vibrant live music scene with more music venues per capita than any other U.S. city. Austin's music revolves around the many nightclubs on 6th Street and an annual film/music/interactive festival known as South by Southwest (SXSW). The concentration of restaurants, bars, and music venues in the city's downtown core is a major contributor to Austin's live music scene, as the ZIP Code encompassing the downtown entertainment district hosts the most bar or alcohol-serving establishments in the U.S. The longest-running concert music program on American television, Austin City Limits, is recorded at ACL Live at The Moody Theater, located in the bottom floor of the W Hotels in Austin. Austin City Limits and C3 Presents produce the Austin City Limits Music Festival, an annual music and art festival held at Zilker Park in Austin. Other music events include the Urban Music Festival, Fun Fun Fun Fest, Chaos In Tejas and Old Settler's Music Festival. Austin Lyric Opera performs multiple operas each year (including the 2007 opening of Philip Glass's Waiting for the Barbarians, written by University of Texas at Austin alumnus J. M. Coetzee). The Austin Symphony Orchestra performs a range of classical, pop and family performances and is led by music director and conductor Peter Bay. The Austin Baroque Orchestra and La Follia Austin Baroque ensembles both give historically informed performances of Baroque music. The Texas Early Music Project regularly performs music from the Medieval and Renaissance eras, as well as the Baroque. Film Austin hosts several film festivals, including the SXSW (South by Southwest) Film Festival and the Austin Film Festival, which hosts international films. A movie theater chain by the name of Alamo Drafthouse Cinema was founded in Austin in 1997; the South Lamar location of which is home to the annual week-long Fantastic Fest film festival. In 2004 the city was first in MovieMaker Magazine's annual top ten cities to live and make movies. Austin has been the location for a number of motion pictures, partly due to the influence of The University of Texas at Austin Department of Radio-Television-Film. Films produced in Austin include The Texas Chain Saw Massacre (1974), Songwriter (1984), Man of the House, Secondhand Lions, Texas Chainsaw Massacre 2, Nadine, Waking Life, Spy Kids, The Faculty, Dazed and Confused, The Guards Themselves, Wild Texas Wind, Office Space, The Life of David Gale, Miss Congeniality, Doubting Thomas, Slacker, Idiocracy, Death Proof, The New Guy, Hope Floats, The Alamo, Blank Check, The Wendall Baker Story, School of Rock, A Slipping-Down Life, A Scanner Darkly, Saturday Morning Massacre, and most recently, the Coen brothers' True Grit, Grindhouse, Machete, How to Eat Fried Worms, Bandslam and Lazer Team. In order to draw future film projects to the area, the Austin Film Society has converted several airplane hangars from the former Mueller Airport into filmmaking center Austin Studios. Projects that have used facilities at Austin Studios include music videos by The Flaming Lips and feature films such as 25th Hour and Sin City. Austin also hosted the MTV series, The Real World: Austin in 2005. Season 4 of the AMC show Fear the Walking Dead was filmed in various locations around Austin in 2018. The film review websites Spill.com and Ain't It Cool News are based in Austin. Rooster Teeth Productions, creator of popular web series such as Red vs. Blue and RWBY, is also located in Austin. Theater Austin has a strong theater culture, with dozens of itinerant and resident companies producing a variety of work. The Church of the Friendly Ghost is a volunteer-run arts organization supporting creative expression and counter-culture community. The city also has live performance theater venues such as the Zachary Scott Theatre Center, Vortex Repertory Company, Salvage Vanguard Theater, Rude Mechanicals' the Off Center, Austin Playhouse, Scottish Rite Children's Theater, Hyde Park Theatre, the Blue Theater, The Hideout Theatre, and Esther's Follies. The Victory Grill was a renowned venue on the Chitlin' Circuit. Public art and performances in the parks and on bridges are popular. Austin hosts the Fuse Box Festival each April featuring theater artists. The Paramount Theatre, opened in downtown Austin in 1915, contributes to Austin's theater and film culture, showing classic films throughout the summer and hosting regional premieres for films such as Miss Congeniality. The Zilker Park Summer Musical is a long-running outdoor musical. The Long Center for the Performing Arts is a 2,300-seat theater built partly with materials reused from the old Lester E. Palmer Auditorium. Ballet Austin is among the fifteen largest ballet academies in the country. Each year Ballet Austin's 20-member professional company performs ballets from a wide variety of choreographers, including their international award-winning artistic director, Stephen Mills. The city is also home to the Ballet East Dance Company, a modern dance ensemble, and the Tapestry Dance Company which performs a variety of dance genres. The Austin improvisational theatre scene has several theaters: ColdTowne Theater, The Hideout Theater, The Fallout Theater, and The Institution Theater. Austin also hosts the Out of Bounds Comedy Festival, which draws comedic artists in all disciplines to Austin. Libraries The Austin Public Library is operated by the City of Austin and consists of the Central Library on César Chávez Street, the Austin History Center, 20 branches and the Recycled Reads bookstore and upcycling facility. The APL library system also has mobile libraries – bookmobile buses and a human-powered trike and trailer called "unbound: sin fronteras." The Central Library, which is an anchor to the redevelopment of the former Seaholm Power Plant site and the Shoal Creek Walk, opened on October 28, 2017. The six-story Central Library contains a living rooftop garden, reading porches, an indoor reading room, bicycle parking station, large indoor and outdoor event spaces, a gift shop, an art gallery, café, and a "technology petting zoo" where visitors can play with next-generation gadgets like 3D printers. In 2018, Time magazine named the Austin Central Library on its list of "World's Greatest Places." Museums and other points of interest Museums in Austin include the Texas Memorial Museum, the George Washington Carver Museum and Cultural Center, Thinkery, the Blanton Museum of Art (reopened in 2006), the Bob Bullock Texas State History Museum across the street (which opened in 2000), The Contemporary Austin, the Elisabet Ney Museum and the galleries at the Harry Ransom Center. The Texas State Capitol itself is also a major tourist attraction. The Driskill Hotel, built in 1886, once owned by George W. Littlefield, and located at 6th and Brazos streets, was finished just before the construction of the Capitol building. Sixth Street is a musical hub for the city. The Enchanted Forest, a multi-acre outdoor music, art, and performance art space in South Austin hosts events such as fire-dancing and circus-like-acts. Austin is also home to the Lyndon Baines Johnson Library and Museum, which houses documents and artifacts related to the Johnson administration, including LBJ's limousine and a re-creation of the Oval Office. Locally produced art is featured at the South Austin Museum of Popular Culture. The Mexic-Arte Museum is a Mexican and Mexican-American art museum founded in 1983. Austin is also home to the O. Henry House Museum, which served as the residence of O. Henry from 1893 to 1895. Farmers' markets are popular attractions, providing a variety of locally grown and often organic foods. Austin also has many odd statues and landmarks, such as the Stevie Ray Vaughan Memorial, the Willie Nelson statue, the Mangia dinosaur, the Loca Maria lady at Taco Xpress, the Hyde Park Gym's giant flexed arm, and Daniel Johnston's Hi, How are You? Jeremiah the Innocent frog mural. The Ann W. Richards Congress Avenue Bridge houses the world's largest urban population of Mexican free-tailed bats. Starting in March, up to 1.5 million bats take up residence inside the bridge's expansion and contraction zones as well as in long horizontal grooves running the length of the bridge's underside, an environment ideally suited for raising their young. Every evening around sunset, the bats emerge in search of insects, an exit visible on weather radar. Watching the bat emergence is an event that is popular with locals and tourists, with more than 100,000 viewers per year. The bats migrate to Mexico each winter. The Austin Zoo, located in unincorporated western Travis County, is a rescue zoo that provides sanctuary to displaced animals from a variety of situations, including those involving neglect. The HOPE Outdoor Gallery was a public, three-story outdoor street art project located on Baylor Street in the Clarksville neighborhood. The gallery, which consisted of the foundations of a failed multifamily development, was a constantly-evolving canvas of graffiti and murals. Also known as "Castle Hill" or simply "Graffiti Park", the site on Baylor Street was closed to the public in early January 2019 but remained intact, behind a fence and with an armed guard, in mid-March 2019. The gallery will build a new art park at Carson Creek Ranch in Southeast Austin. Sports Many Austinites support the athletic programs of the University of Texas at Austin known as the Texas Longhorns. During the 2005–2006 academic term, Longhorns football team was named the NCAA Division I FBS National Football Champion, and Longhorns baseball team won the College World Series. The Texas Longhorns play home games in the state's second-largest sports stadium, Darrell K Royal–Texas Memorial Stadium, seating over 101,000 fans. Baseball games are played at UFCU Disch–Falk Field. Austin was the most populous city in the United States without a major-league professional sports team, which changed in 2021 with Austin FC's entry to MLS. Minor-league professional sports came to Austin in 1996, when the Austin Ice Bats began playing at the Travis County Expo Center; they were later replaced by the AHL Texas Stars. Austin has hosted a number of other professional teams, including the Austin Spurs of the NBA G League, the Austin Aztex of the United Soccer League, the Austin Outlaws in WFA football, and the Austin Aces in WTT tennis. Natural features like the bicycle-friendly Texas Hill Country and generally mild climate make Austin the home of several endurance and multi-sport races and communities. The Capitol 10,000 is the largest race in Texas, and approximately fifth largest in the United States. The Austin Marathon has been run in the city every year since 1992. Additionally, the city is home to the largest 5 mile race in Texas, named the Turkey Trot as it is run annually on Thanksgiving. Started in 1991 by Thundercloud Subs, a local sandwich chain (who still sponsors the event), the event has grown to host over 20,000 runners. All proceeds are donated to Caritas of Austin, a local charity. The Austin-founded American Swimming Association hosts several swim races around town. Austin is also the hometown of several cycling groups and the disgraced cyclist Lance Armstrong. Combining these three disciplines is a growing crop of triathlons, including the Capital of Texas Triathlon held every Memorial Day on and around Lady Bird Lake, Auditorium Shores, and Downtown Austin. Austin is home to the Circuit of the Americas (COTA), a grade 1 Fédération Internationale de l'Automobile specification motor racing facility which hosts the Formula One United States Grand Prix. The State of Texas has pledged $25 million in public funds annually for 10 years to pay the sanctioning fees for the race. Built at an estimated cost of $250 to $300 million, the circuit opened in 2012 and is located just east of the Austin Bergstrom International Airport. The circuit also hosts the EchoPark Automotive Grand Prix NASCAR race in late March each year. The summer of 2014 marked the inaugural season for World TeamTennis team Austin Aces, formerly Orange County Breakers of the southern California region. The Austin Aces played their matches at the Cedar Park Center northwest of Austin, and featured former professionals Andy Roddick and Marion Bartoli, as well as current WTA tour player Vera Zvonareva. The team left after the 2015 season. In 2017, Precourt Sports Ventures announced a plan to move the Columbus Crew SC soccer franchise from Columbus, Ohio to Austin. Precourt negotiated an agreement with the City of Austin to build a $200 million privately funded stadium on public land at 10414 McKalla Place, following initial interest in Butler Shores Metropolitan Park and Roy G. Guerrero Colorado River Park. As part of an arrangement with the league, operational rights of Columbus Crew SC were sold in late 2018, and Austin FC was announced as Major League Soccer's 27th franchise on January 15, 2019, with the expansion team starting play in 2021. Parks and recreation The Austin Parks and Recreation Department received the Excellence in Aquatics award in 1999 and the Gold Medal Awards in 2004 from the National Recreation and Park Association. To strengthen the region's parks system, which spans more than , The Austin Parks Foundation (APF) was established in 1992 to develop and improve parks in and around Austin. APF works to fill the city's park funding gap by leveraging volunteers, philanthropists, park advocates, and strategic collaborations to develop, maintain and enhance Austin's parks, trails and green spaces. Lady Bird Lake Lady Bird Lake (formerly Town Lake) is a river-like reservoir on the Colorado River. The lake is a popular recreational area for paddleboards, kayaks, canoes, dragon boats, and rowing shells. Austin's warm climate and the river's calm waters, nearly length and straight courses are especially popular with crew teams and clubs. Other recreational attractions along the shores of the lake include swimming in Deep Eddy Pool, the oldest swimming pool in Texas, and Red Bud Isle, a small island formed by the 1900 collapse of the McDonald Dam that serves as a recreation area with a dog park and access to the lake for canoeing and fishing. The Ann and Roy Butler Hike and Bike Trail forms a complete circuit around the lake. A local nonprofit, The Trail Foundation, is the Trail's private steward and has built amenities and infrastructure including trailheads, lakefront gathering areas, restrooms, exercise equipment, as well as doing Trailwide ecological restoration work on an ongoing basis. The Butler Trail loop was completed in 2014 with the public-private partnership 1-mile Boardwalk project. Along the shores of Lady Bird Lake is the Zilker Park, which contains large open lawns, sports fields, cross country courses, historical markers, concession stands, and picnic areas. Zilker Park is also home to numerous attractions, including the Zilker Botanical Garden, the Umlauf Sculpture Garden, Zilker Hillside Theater, the Austin Nature & Science Center, and the Zilker Zephyr, a gauge miniature railway carries passengers on a tour around the park. Auditorium Shores, an urban park along the lake, is home to the Palmer Auditorium, the Long Center for the Performing Arts, and an off-leash dog park on the water. Both Zilker Park and Auditorium Shores have a direct view of the Downtown skyline. Barton Creek Greenbelt The Barton Creek Greenbelt is a public green belt managed by the City of Austin's Park and Recreation Department. The Greenbelt, which begins at Zilker Park and stretches South/Southwest to the Woods of Westlake subdivision, is characterized by large limestone cliffs, dense foliage, and shallow bodies of water. Popular activities include rock climbing, mountain biking, and hiking. Some well known naturally forming swimming holes along Austin's greenbelt include Twin Falls, Sculpture Falls, Gus Fruh Pool, and Campbell's Hole. During years of heavy rainfall, the water level of the creek rises high enough to allow swimming, cliff diving, kayaking, paddle boarding, and tubing. Swimming holes Austin is home to more than 50 public pools and swimming holes. These include Deep Eddy Pool, Texas' oldest human-made swimming pool, and Barton Springs Pool, the nation's largest natural swimming pool in an urban area. Barton Springs Pool is spring-fed while Deep Eddy is well-fed. Both range in temperature from about during the winter to about during the summer. Hippie Hollow Park, a county park situated along Lake Travis, is the only officially sanctioned clothing-optional public park in Texas. Hamilton Pool Preserve is a natural pool that was created when the dome of an underground river collapsed due to massive erosion thousands of years ago. The pool, located about west of Austin, is a popular summer swimming spot for visitors and residents. Hamilton Pool Preserve consists of of protected natural habitat featuring a jade green pool into which a waterfall flows. Other parks and recreation In May 2021, voters in the City of Austin reinstated a public camping ban. That includes downtown green spaces as well as trails and greenbelts such as along Barton Creek. McKinney Falls State Park is a state park administered by the Texas Parks and Wildlife Department, located at the confluence of Onion Creek and Williamson Creek. The park includes several designated hiking trails and campsites with water and electric. The namesake features of the park are the scenic upper and lower falls along Onion Creek. The Emma Long Metropolitan Park is a municipal park along the shores of Lake Austin, originally constructed by the Civilian Conservation Corps. The Lady Bird Johnson Wildflower Center is a botanical garden and arboretum that features more than 800 species of native Texas plants in both garden and natural settings; the Wildflower Center is located southwest of Downtown in Circle C Ranch. Roy G. Guerrero Park is located along the Colorado River in East Riverside and contains miles of wooded trails, a sandy beach along the river, and a disc golf course. Covert Park, located on the top of Mount Bonnell, is a popular tourist destination overlooking Lake Austin and the Colorado River. The mount provides a vista for viewing the city of Austin, Lake Austin, and the surrounding hills. It was designated a Recorded Texas Historic Landmark in 1969, bearing Marker number 6473, and was listed on the National Register of Historic Places in 2015. The Austin Country Club is a private golf club located along the shores of the Colorado River, right next to the Pennybacker Bridge. Founded in 1899, the club moved to its third and present site in 1984, which features a challenging layout designed by noted course architect Pete Dye. Government City government Austin is administered by an 11-member city council (10 council members elected by geographic district plus a mayor elected at large). The council is accompanied by a hired city manager under the manager-council system of municipal governance. Council and mayoral elections are non-partisan, with a runoff in case there is no majority winner. A referendum approved by voters on November 6, 2012, changed the council composition from six council members plus a mayor elected at large to the current "10+1" district system. Supporters maintained that the at-large system would increase participation for all areas of the city, especially for those which had lacked representation from City Council. November 2014 marked the first election under the new system. The Federal government had forced San Antonio and Dallas to abandon at-large systems before 1987; however, the court could not show a racist pattern in Austin and upheld the city's at-large system during a 1984 lawsuit. In five elections between 1973 and 1994 Austin voters rejected single-member districts. Austin formerly operated its city hall at 128 West 8th Street. Antoine Predock and Cotera Kolar Negrete & Reed Architects designed a new city hall building, which was intended to reflect what The Dallas Morning News referred to as a "crazy-quilt vitality, that embraces everything from country music to environmental protests and high-tech swagger." The new city hall, built from recycled materials, has solar panels in its garage. The city hall, at 301 West Second Street, opened in November 2004. Kirk Watson is the current mayor of Austin, assuming the office for a second non-consecutive term on January 6, 2023. In the 2012 elections, City Council elections were moved from May to November and City council members were given staggered term limits In 2022 Proposition D moved the term of the Austin Mayor to coincide with Presidential election years, so Kirk Watson would only serve two years unlike his predecessor Steve Adler Law enforcement in Austin is provided by the Austin Police Department, except for state government buildings, which are patrolled by the Texas Department of Public Safety. The University of Texas Police operate from the University of Texas. Fire protection within the city limits is provided by the Austin Fire Department, while the surrounding county is divided into twelve geographical areas known as emergency services districts, which are covered by separate regional fire departments. Emergency medical services are provided for the whole county by Austin-Travis County Emergency Medical Services. Mayor Kirk Watson (D) In 2003, the city adopted a resolution against the USA PATRIOT Act that reaffirmed constitutionally guaranteed rights. As of 2018, all six of Austin's state legislative districts are held by Democrats. Crime As of 2019, Austin is one of the safest large cities in the United States. In 2019, the FBI named Austin the 11th safest city on a list of 22 American cities with a population above 400,000. FBI statistics show that overall violent and property crimes dropped in Austin in 2015, but increased in suburban areas of the city. One such southeastern suburb, Del Valle, reported eight homicides within two months in 2016. According to 2016 APD crime statistics, the 78723 census tract had the most violent crime, with 6 murders, 25 rapes, and 81 robberies. The city had 39 homicides in 2016, the most since 1997. Notable incidents One of the first American mass school shooting incidents took place in Austin on August 1, 1966, when Charles Whitman shot 43 people, killing 13 from the top of the University of Texas tower. The University of Texas tower shooting led to the formation of the SWAT team of the Austin Police Department. In 1991, four teenage girls were murdered in a yogurt shop by an unknown assailant(s). A police officer responded to reports of a fire at the I Can't Believe It's Yogurt! store on Anderson Lane and discovered the girls' bodies in a back room. The murders remain unsolved. In 2010, Andrew Joseph Stack III deliberately crashed his Piper PA-28 Cherokee into Echelon 1, a building in which the Internal Revenue Service, housing 190 employees was a lessee of. The resulting explosion killed 1 and injured 13 IRS employees, partially damaged the building and cost the IRS a total of $38.6 million. (see 2010 Austin suicide attack) A series of bombings occurred in Austin in March 2018. Over the course of 20 days, five package bombs exploded, killing two people and injuring another five. The suspect, 23-year-old Mark Anthony Conditt of Pflugerville, Texas, blew himself up inside his vehicle after he was pulled over by police on March 21, also injuring a police officer. In 2020, Austin was the victim of a cyberattack by the Russian group Berserk Bear, possibly related to the U.S. federal government data breach earlier that year. On April 18, 2021, a shooting occurred at the Arboretum Oaks Apartments near The Arboretum shopping center, in which a former Travis County Sheriff's Office detective killed his ex-wife, his adoptive daughter, and his daughter's boyfriend. The suspect, who was previously charged with child sexual assault, was arrested in Manor after a 20-hour manhunt. A mass shooting took place in the early morning of June 12, 2021, on Sixth Street, which resulted in 14 people injured and one dead. The man killed was believed to be an innocent bystander who was struck as he was standing outside a bar. A 19-year-old suspect was formally charged and arrested in Killeen nearly two weeks after the shooting. Other levels of government Austin is the county seat of Travis County and hosts the Heman Marion Sweatt Travis County Courthouse downtown, as well as other county government offices. The Texas Department of Transportation operates the Austin District Office in Austin. The Texas Department of Criminal Justice (TDCJ) operates the Austin I and Austin II district parole offices in Austin. The United States Postal Service operates several post offices in Austin. Politics Former Governor Rick Perry had previously referred to it as a "blueberry in the tomato soup", meaning, Austin had previously been a Democratic city in a Republican state. However, Texas currently has multiple urban cities also voting Democratic and electing Democratic mayors in elections. After the most recent redistricting, Austin is currently divided between the 10th, 37th and 35th Congressional districts. Issues A controversial turning point in the political history of the Austin area was the 2003 Texas redistricting. Before then, Austin had been entirely or almost entirely within the borders of a single congressional district–what was then the 10th District–for over a century. Opponents characterized the resulting district layout as excessively partisan gerrymandering, and the plan was challenged in court by Democratic and minority activists. The Supreme Court of the United States has never struck down a redistricting plan for being excessively partisan. The plan was subsequently upheld by a three-judge federal panel in late 2003, and on June 28, 2006, the matter was largely settled when the Supreme Court, in a 7–2 decision, upheld the entire congressional redistricting plan with the exception of a Hispanic-majority district in southwest Texas. This affected Austin's districting, as U.S. Rep. Lloyd Doggett's district (U.S. Congressional District 25) was found to be insufficiently compact to compensate for the reduced minority influence in the southwest district; it was redrawn so that it took in most of southeastern Travis County and several counties to its south and east. Environmental movement The distinguishing political movement of Austin politics has been that of the environmental movement, which spawned the parallel neighborhood movement, then the more recent conservationist movement (as typified by the Hill Country Conservancy), and eventually the current ongoing debate about "sense of place" and preserving the Austin quality of life. Much of the environmental movement has matured into a debate on issues related to saving and creating an Austin "sense of place." In 2012, Austin became just one of a few cities in Texas to ban the sale and use of plastic bags. However, the ban ended in 2018 due to a court ruling that regarded all bag bans in the state to contravene the Texas Solid Waste Disposal Act. In 2016, Austin became the first Gold designee of the SolSmart program, a national program from the U.S. Department of Energy that recognizes local governments for enacting solar-friendly measures at the local level. Education According to the 2015–2019 Census estimates, 51.7% of Austin residents ages 25 and over have earned at least a bachelor's degree, compared to the national figure of 32.1%. 19.4% hold a graduate or professional degree, compared to the national figure of 12.4%. Higher education Austin is home to the University of Texas at Austin, the flagship institution of the University of Texas System with over 40,000 undergraduate students and 11,000 graduate students. Other institutions of higher learning in Austin include St. Edward's University, Huston–Tillotson University, Austin Community College, Concordia University, the Seminary of the Southwest, Texas Health and Science University, University of St. Augustine for Health Sciences, Austin Graduate School of Theology, Austin Presbyterian Theological Seminary, Virginia College's Austin Campus, The Art Institute of Austin, Southern Careers Institute of Austin, Austin Conservatory and branch campuses of Case Western Reserve University and Park University. The University of Texas System and Texas State University System are headquartered in downtown Austin. Public primary and secondary education Approximately half of the city by area is served by the Austin Independent School District. This district includes notable schools such as the magnet Liberal Arts and Science Academy High School of Austin, Texas (LASA), which, by test scores, has consistently been within the top thirty high schools in the nation, as well as The Ann Richards School for Young Women Leaders. The remaining portion of Austin is served by adjoining school districts, including Round Rock ISD, Pflugerville ISD, Leander ISD, Manor ISD, Del Valle ISD, Lake Travis ISD, Hays, and Eanes ISD. Four of the metro's major public school systems, representing 54% of area enrollment, are included in Expansion Management magazine's latest annual education quality ratings of nearly 2,800 school districts nationwide. Two districts—Eanes and Round Rock—are rated "gold medal," the highest of the magazine's cost-performance categories. Private and alternative education The Austin metropolitan area is also served by 27 charter school districts and over 100 private schools. Austin has a large network of private and alternative education institutions for children in PreK–12th grade exists. Austin is also home to child developmental institutions. Media Austin's main daily newspaper is the Austin American-Statesman. The Austin Chronicle is Austin's alternative weekly, while The Daily Texan is the student newspaper of the University of Texas at Austin. Austin's business newspaper is the weekly Austin Business Journal. The Austin Monitor is an online outlet that specializes in insider reporting on City Hall, Travis County Commissioners Court, AISD, and other related local civics beats. The Monitor is backed by the nonprofit Capital of Texas Media Foundation. Austin also has numerous smaller special interest or sub-regional newspapers such as the Oak Hill Gazette, Westlake Picayune, Hill Country News, Round Rock Leader, NOKOA, and The Villager among others. Texas Monthly, a major regional magazine, is also headquartered in Austin. The Texas Observer, a muckraking biweekly political magazine, has been based in Austin for over five decades. The weekly Community Impact Newspaper published by John Garrett, former publisher of the Austin Business Journal has five regional editions and is delivered to every house and business within certain ZIP codes and all of the news is specific to those ZIP codes. Another statewide publication based in Austin is The Texas Tribune, an on-line publication focused on Texas politics. The Tribune is "user-supported" through donations, a business model similar to public radio. The editor is Evan Smith, former editor of Texas Monthly. Smith co-founded the Texas Tribune, a nonprofit, non-partisan public media organization, with Austin venture capitalist John Thornton and veteran journalist Ross Ramsey. Commercial radio stations include KASE-FM (country), KVET (sports), KVET-FM (country), KKMJ-FM (adult contemporary), KLBJ (talk), KLBJ-FM (classic rock), KJFK (variety hits), KFMK (contemporary Christian), KOKE-FM (progressive country) and KPEZ (rhythmic contemporary). KUT-FM is the leading public radio station in Texas and produces the majority of its content locally. KOOP (FM) is a volunteer-run radio station with more than 60 locally produced programs. KVRX is the student-run college radio station of the University of Texas at Austin with a focus on local and non-mainstream music and community programming. Other listener-supported stations include KAZI (urban contemporary), and KMFA (classical). Network television stations (affiliations in parentheses) include KTBC (Fox O&O), KVUE (ABC), KXAN (NBC), KEYE-TV (CBS), KLRU (PBS), KNVA (The CW), KBVO (MyNetworkTV), and KAKW (Univision O&O). KLRU produces several award-winning locally produced programs such as Austin City Limits. Despite Austin's explosive growth, it is only a medium-sized market (currently 38th) because the suburban and rural areas are not much larger than the city proper. Additionally, the proximity of San Antonio truncates the potential market area. Alex Jones, journalist, radio show host and filmmaker, produces his talk show The Alex Jones Show in Austin which broadcasts nationally on more than 60 AM and FM radio stations in the United States, WWCR Radio shortwave and XM Radio: Channel 166. Transportation In 2009, 72.7% of Austin (city) commuters drove alone, with other mode shares being: 10.4% carpool, 6% were remote workers, 5% use transit, 2.3% walk, and 1% bicycle. In 2016, the American Community Survey estimated modal shares for Austin (city) commuters of 73.5% for driving alone, 9.6% for carpooling, 3.6% for riding transit, 2% for walking, and 1.5% for cycling. The city of Austin has a lower than average percentage of households without a car. In 2015, 6.9 percent of Austin households lacked a car, and decreased slightly to 6 percent in 2016. The national average was 8.7 percent in 2016. Austin averaged 1.65 cars per household in 2016, compared to a national average of 1.8. In mid-2019, TomTom ranked Austin as having the worst traffic congestion in Texas, as well as 19th nationally and 179th globally. Highways Central Austin lies between two major north–south freeways: Interstate 35 to the east and the Mopac Expressway (Loop 1) to the west. U.S. Highway 183 runs from northwest to southeast, and State Highway 71 crosses the southern part of the city from east to west, completing a rough "box" around central and north-central Austin. Austin is the largest city in the United States to be served by only one Interstate Highway. U.S. Highway 290 enters Austin from the east and merges into Interstate 35. Its highway designation continues south on I-35 and then becomes part of Highway 71, continuing to the west. Highway 290 splits from Highway 71 in southwest Austin, in an interchange known as "The Y." Highway 71 continues to Brady, Texas, and Highway 290 continues west to intersect Interstate 10 near Junction. Interstate 35 continues south through San Antonio to Laredo on the Texas-Mexico border. Interstate 35 is the highway link to the Dallas-Fort Worth metroplex in northern Texas. There are two links to Houston, Texas (Highway 290 and State Highway 71/Interstate 10). Highway 183 leads northwest of Austin toward Lampasas. In the mid-1980s, construction was completed on Loop 360, a scenic highway that curves through the hill country from near the 71/Mopac interchange in the south to near the 183/Mopac interchange in the north. The iconic Pennybacker Bridge, also known as the "360 Bridge," crosses Lake Austin to connect the northern and southern portions of Loop 360. Tollways State Highway 130 is a bypass route designed to relieve traffic congestion, starting from Interstate 35 just north of Georgetown and running along a parallel route to the east, where it bypasses Round Rock, Austin, San Marcos and New Braunfels before ending at Interstate 10 east of Seguin, where drivers could drive west to return to Interstate 35 in San Antonio. The first segment was opened in November 2006, which was located east of Austin–Bergstrom International Airport at Austin's southeast corner on State Highway 71. Highway 130 runs concurrently with Highway 45 from Pflugerville on the north until it reaches US 183 well south of Austin, at which point SR 45 continues west. The entire route of State Highway 130 is now complete. The final leg opened on November 1, 2012. The highway is noted for having a maximum speed limit of for the entire route. The section of the toll road between Mustang Ridge and Seguin has a posted speed limit of , the highest posted speed limit in the United States. State Highway 45 runs east–west from just south of Highway 183 in Cedar Park to 130 inside Pflugerville (just east of Round Rock). A tolled extension of State Highway Loop 1 was also created. A new southeast leg of Highway 45 has recently been completed, running from US 183 and the south end of Segment 5 of TX-130 south of Austin due west to I-35 at the FM 1327/Creedmoor exit between the south end of Austin and Buda. The 183A Toll Road opened in March 2007, providing a tolled alternative to U.S. 183 through the cities of Leander and Cedar Park. Currently under construction is a change to East US 290 from US 183 to the town of Manor. Officially, the tollway will be dubbed Tollway 290 with "Manor Expressway" as nickname. Despite the overwhelming initial opposition to the toll road concept when it was first announced, all three toll roads have exceeded revenue projections. Airports Austin's primary airport is Austin–Bergstrom International Airport (ABIA) (IATA code AUS), located southeast of the city. The airport is on the site of the former Bergstrom Air Force Base, which was closed in 1993 as part of the Base Realignment and Closure process. Until 1999, Robert Mueller Municipal Airport was Austin's main airport until ABIA took that role and the old airport was shut down. Austin Executive Airport, along with several smaller airports outside the city center, serves general aviation traffic. Intercity transit Amtrak's Austin station is located in west downtown and is served by the Texas Eagle which runs daily between Chicago and San Antonio, continuing on to Los Angeles several times a week. Railway segments between Austin and San Antonio have been evaluated for a proposed regional passenger rail project called "Lone Star Rail". However, failure to come to an agreement with the track's current owner, Union Pacific Railroad, ended the project in 2016. Greyhound Lines operates the current Austin Bus Station at the Eastside Bus Plaza Grupo Senda's Turimex Internacional service operates bus service from Austin to Nuevo Laredo and on to many destinations in Mexico from their station in East Austin. Megabus offers daily service to San Antonio, Dallas/Fort Worth and Houston. Public transportation The Capital Metropolitan Transportation Authority (Capital Metro) provides public transportation to the city, primarily with its MetroBus local bus service, the MetroExpress express bus system, as well as a bus rapid transit service, MetroRapid. Capital Metro opened a commuter rail system, Capital MetroRail, in 2010. The system consists of a single line serving downtown Austin, the neighborhoods of East Austin, North Central Austin, and Northwest Austin plus the suburb of Leander. Since it began operations in 1985, Capital Metro has proposed adding light rail services to its network. Despite support from the City Council, voters rejected light rail proposals in 2000 and 2014. However, in 2020, voters approved Capital Metro's transit expansion plan, Project Connect, by a comfortable margin. The plan proposes 2 new light rail lines, an additional bus rapid transit line (which could be converted to light rail in the future), a second commuter rail line, several new MetroRapid lines, more MetroExpress routes, and a number of other infrastructure, technology and service expansion projects. Capital Area Rural Transportation System connects Austin with outlying suburbs and surrounding rural areas. Ride sharing Austin is served by several ride-sharing companies including Uber and Lyft. On May 9, 2016, Uber and Lyft voluntarily ceased operations in Austin in response to a city ordinance that required ride sharing company drivers to get fingerprint checks, have their vehicles labeled, and not pick up or drop off in certain city lanes. Uber and Lyft resumed service in the summer of 2017. The city was previously served by Fasten until they ceased all operations in the city in March 2018. Austin is also served by Electric Cab of North America's six-passenger electric cabs that operate on a flexible route from the Kramer MetroRail Station to Domain Northside and from the Downtown MetroRail station and MetroRapid stops to locations between the Austin Convention Center and near Sixth and Bowie streets by Whole Foods. Carsharing service Zipcar operates in Austin and, until 2019, the city was also served by Car2Go which kept its North American headquarters in the city even after pulling out. Cycling and walking The city's bike advocacy organization is Bike Austin. BikeTexas, a state-level advocacy organization, also has its main office in Austin. Bicycles are a popular transportation choice among students, faculty, and staff at the University of Texas. According to a survey done at the University of Texas, 57% of commuters bike to campus. The City of Austin and Capital Metro jointly own a bike-sharing service, Capital MetroBike, which is available in and around downtown. The service is a franchise of BCycle, a national bike sharing network owned by Trek Bicycle, and is operated by local nonprofit organization Bike Share of Austin. Until 2020 the service was known as Austin BCycle. In 2018, Lime began offering dockless bikes, which do not need to be docked at a designated station. In 2018, scooter-sharing companies Lime and Bird debuted rentable electric scooters in Austin. The city briefly banned the scooters — which began operations before the city could implement a permitting system — until the city completed development of their "dockless mobility" permitting process on May 1, 2018. Dockless electric scooters and bikes are banned from Austin city parks and the Ann and Roy Butler Trail and Boardwalk. For the 2018 Austin City Limits Music Festival, the city of Austin offered a designated parking area for dockless bikes and scooters. Notable people International relations Austin has two types of relationships with other cities, sister and friendship. Sister cities Austin's sister cities are: Adelaide, Australia (1983) Angers, Pays de la Loire, France (2011) Antalya, Antalya Province, Turkey (2009) Gwangmyeong, Gyeonggi-do, South Korea (2001) Hackney, London, England, United Kingdom (2014) Koblenz, Rhineland-Palatinate, Germany (1991) Lima, Peru (1981) Maseru, Lesotho (1978) Ōita, Ōita, Japan (1990) Orlu, South East, Nigeria (2000) Pune, Maharashtra, India (2018) Saltillo, Coahuila, Mexico (1968) Taichung, Taiwan (1986) Xishuangbanna, Yunnan, China (1997) The cities of Belo Horizonte, Brazil and Elche, Spain were formerly sister cities, but upon a vote of the Austin City Council in 1991, their status was de-activated. Friendship cities Covenants between two city leaders: Siem Reap, Cambodia (2011) Tehuacán, Mexico (2019) Villefranche-sur-Mer, France (2010) See also List of companies based in Austin, Texas List of people from Austin, Texas National Register of Historic Places listings in Travis County, Texas Music in Austin Neighborhoods in Austin Notes References Further reading Wright, Lawrence. "The Astonishing Transformation of Austin, Texas". The New Yorker, February 6, 2023. External links AustinTexas.gov - official city website Austin Chamber of Commerce Historic photographs from the Austin History Center, hosted by the Portal to Texas History Cities in Texas Cities in Hays County, Texas Cities in Travis County, Texas Cities in Williamson County, Texas County seats in Texas Cities in Greater Austin Planned communities in the United States Populated places established in 1835 1839 establishments in the Republic of Texas Academic enclaves Capitals of former nations State capitals in the United States

2004

https://en.wikipedia.org/wiki/ASL%20%28disambiguation%29

ASL (disambiguation)

ASL is a common initialism for American Sign Language, the sign language of the United States and Canada (not be confused with Auslan, also called ASL or Asilulu language which has the ISO code ASL), and may also refer to: Culture Sport American Soccer League (disambiguation) Australia's Surfing Life, surf magazine African Super League, a future CAF club competition Axpo Super League, former name of the Swiss Super League Other uses A Static Lullaby, American post-hardcore band Advanced Squad Leader, a tactical board wargame A shorted version of the following slang terms: age/sex/location, internet slang As hell, slang popular amongst members of Generation Z Average shot length, in film editing AfreecaTV StarCraft League, a video game tournament series Science and technology Aviation Aeronautical Syndicate Ltd, British aeroplane manufacturer. Air Serbia, ICAO airline code ASL Airlines Ireland, cargo airline Biology and medicine American Society of Lymphology, former name of the Lymphology Association of North America Argininosuccinate lyase, an enzyme Arterial spin labelling, a perfusion MRI technique Computing ACPI Source Language, for ACPI tables Adobe Source Libraries, open-source GUI software libraries Advanced Simulation Library, open-source hardware-accelerated multiphysics simulation software AMPL Solver Library, an open-source automatic differentiation library Apache Software License, an open-source license for software Application Services Library, a process model for the maintenance of software applications Arithmetic shift left, an operation implementing an arithmetic shift Other uses Above sea level, an altitude measurement Association for Symbolic Logic, of specialists in mathematical logic and philosophical logic Automated side loader, type of garbage collection truck Atmospheric Sciences Laboratory, a research institution formerly under the U.S. Army Materiel Command Society Education The American School in London Appalachian School of Law, Grundy, Virginia Art Students' League of Philadelphia Other uses Anti-Saloon League, an organization of temperance movements that lobbied for prohibition in the United States. Advanced stop line, a road marking at junctions Artists' Suffrage League, UK Autobacs Sportscar Laboratory, of Autobacs Seven, Japan Ansar al-Sharia in Libya, a Salafist Islamist militia group Animelo Summer Live, a Japanese music festival

2007

https://en.wikipedia.org/wiki/Archery

Archery

Archery is the sport, practice, or skill of using a bow to shoot arrows. The word comes from the Latin arcus, meaning bow. Historically, archery has been used for hunting and combat. In modern times, it is mainly a competitive sport and recreational activity. A person who practices archery is typically called an archer, bowman, or toxophilite. History Origins and ancient archery The oldest known evidence of the bow and arrow comes from South African sites such as Sibudu Cave, where the remains of bone and stone arrowheads have been found dating approximately 72,000 to 60,000 years ago. Based on indirect evidence, the bow also seems to have appeared or reappeared later in Eurasia, near the transition from the Upper Paleolithic to the Mesolithic. The earliest definite remains of bow and arrow from Europe are possible fragments from Germany found at Mannheim-Vogelstang dated 17,500 to 18,000 years ago, and at Stellmoor dated 11,000 years ago. Azilian points found in Grotte du Bichon, Switzerland, alongside the remains of both a bear and a hunter, with flint fragments found in the bear's third vertebra, suggest the use of arrows at 13,500 years ago. Other signs of its use in Europe come from the in the north of Hamburg, Germany and dates from the late Paleolithic, about 10,000–9000 BC. The arrows were made of pine and consisted of a main shaft and a fore shaft with a flint point. There are no definite earlier bows; previous pointed shafts are known, but may have been launched by spear-throwers rather than bows. The oldest bows known so far comes from the Holmegård swamp in Denmark. At the site of Nataruk in Turkana County, Kenya, obsidian bladelets found embedded in a skull and within the thoracic cavity of another skeleton, suggest the use of stone-tipped arrows as weapons about 10,000 years ago. Bows eventually replaced the spear-thrower as the predominant means for launching shafted projectiles, on every continent except Australasia, though spear-throwers persisted alongside the bow in parts of the Americas, notably Mexico and among the Inuit. Bows and arrows have been present in Egyptian and neighbouring Nubian culture since its respective predynastic and Pre-Kerma origins. In the Levant, artifacts that could be arrow-shaft straighteners are known from the Natufian culture, (c. 10,800–8,300 BC) onwards. The Khiamian and PPN A shouldered Khiam-points may well be arrowheads. Classical civilizations, notably the Assyrians, Greeks, Armenians, Persians, Parthians, Romans, Indians, Koreans, Chinese, and Japanese fielded large numbers of archers in their armies. Akkadians were the first to use composite bows in war according to the victory stele of Naram-Sin of Akkad. Egyptians referred to Nubia as "Ta-Seti," or "The Land of the Bow," since the Nubians were known to be expert archers, and by the 16th Century BC Egyptians were using the composite bow in warfare. The Bronze Age Aegean Cultures were able to deploy a number of state-owned specialized bow makers for warfare and hunting purposes already from the 15th century BC. The Welsh longbow proved its worth for the first time in Continental warfare at the Battle of Crécy. In the Americas archery was widespread at European contact. Archery was highly developed in Asia. The Sanskrit term for archery, dhanurvidya, came to refer to martial arts in general. In East Asia, Goguryeo, one of the Three Kingdoms of Korea was well known for its regiments of exceptionally skilled archers. Medieval archery The medieval shortbow was technically identical with the classical era bows, having a range of approximately . It was the primary ranged weapon of the battlefield through the early medieval period. Around the tenth century the crossbow was introduced in Europe. Crossbows generally had a longer range, greater accuracy and more penetration than the shortbow, but suffered from a much slower rate of fire. Crossbows were used in the early Crusades, with models having a range of and being able to penetrate armour or kill a horse. During the late medieval period the English army famously relied on massed archers armed with the longbow. The French army relied more on the crossbow. Like their predecessors archers were more likely to be peasants or yeomen than men-at-arms. The longbow had a range of up to . However its lack of accuracy at long ranges made it a mass weapon rather than an individual one. Significant victories attributable to the longbow, such as the Battle of Crecy and Battle of Agincourt resulted in the English longbow becoming part of military lore. Mounted archery Tribesmen of Central Asia (after the domestication of the horse) and American Plains Indians (after gaining access to horses by Europeans) became extremely adept at archery on horseback. Lightly armoured, but highly mobile archers were excellently suited to warfare in the Central Asian steppes, and they formed a large part of armies that repeatedly conquered large areas of Eurasia. Shorter bows are more suited to use on horseback, and the composite bow enabled mounted archers to use powerful weapons. Seljuk Turks used mounted archers against the European First Crusade, especially at the Battle of Dorylaeum (1097). Their tactic was to shoot at the enemy infantry, and use their superior mobility to prevent the enemy from closing with them. Empires throughout the Eurasian landmass often strongly associated their respective "barbarian" counterparts with the usage of the bow and arrow, to the point where powerful states like the Han dynasty referred to their neighbours, the Xiong-nu, as "Those Who Draw the Bow". For example, Xiong-nu mounted bowmen made them more than a match for the Han military, and their threat was at least partially responsible for Chinese expansion into the Ordos region, to create a stronger, more powerful buffer zone against them. It is possible that "barbarian" peoples were responsible for introducing archery or certain types of bows to their "civilized" counterpartsthe Xiong-nu and the Han being one example. Similarly, short bows seem to have been introduced to Japan by northeast Asian groups. Decline of archery The development of firearms rendered the bow and arrow obsolete in warfare, although efforts were sometimes made to preserve archery practice. In England and Wales, for example, the government tried to enforce practice with the longbow until the end of the 16th century. This was because it was recognized that the bow had been instrumental to military success during the Hundred Years' War. Despite the high social status, ongoing utility, and widespread pleasure of archery in Armenia, China, Egypt, England and Wales, the Americas, India, Japan, Korea, Turkey and elsewhere, almost every culture that gained access to even early firearms used them widely, to the neglect of archery. Early firearms were inferior in rate-of-fire, and were very sensitive to wet weather. However, they had longer effective range and were tactically superior in the common situation of soldiers shooting at each other from behind obstructions. They also required significantly less training to use properly, in particular penetrating steel armor without any need to develop special musculature. Armies equipped with guns could thus provide superior firepower, and highly trained archers became obsolete on the battlefield. However, the bow and arrow is still an effective weapon, and archers have seen military action in the 21st century. Traditional archery remains in use for sport, and for hunting in many areas. 18th century revival as a sport Early recreational archery societies included the Finsbury Archers and the Ancient Society of Kilwinning Archers. The latter's annual Papingo event was first recorded in 1483. (In this event, archers shoot vertically from the base of an abbey tower to dislodge a wood pigeon placed approximately above.) The Royal Company of Archers was formed in 1676 and is one of the oldest sporting bodies in the world. Archery remained a small and scattered pastime, however, until the late 18th century when it experienced a fashionable revival among the aristocracy. Sir Ashton Lever, an antiquarian and collector, formed the Toxophilite Society in London in 1781, with the patronage of George, the Prince of Wales. Archery societies were set up across the country, each with its own strict entry criteria and outlandish costumes. Recreational archery soon became extravagant social and ceremonial events for the nobility, complete with flags, music and 21-gun salutes for the competitors. The clubs were "the drawing rooms of the great country houses placed outside" and thus came to play an important role in the social networks of the local upper class. As well as its emphasis on display and status, the sport was notable for its popularity with females. Young women could not only compete in the contests but retain and show off their sexuality while doing so. Thus, archery came to act as a forum for introductions, flirtation and romance. It was often consciously styled in the manner of a Medieval tournament with titles and laurel wreaths being presented as a reward to the victor. General meetings were held from 1789, in which local lodges convened together to standardise the rules and ceremonies. Archery was also co-opted as a distinctively British tradition, dating back to the lore of Robin Hood and it served as a patriotic form of entertainment at a time of political tension in Europe. The societies were also elitist, and the new middle class bourgeoisie were excluded from the clubs due to their lack of social status. After the Napoleonic Wars, the sport became increasingly popular among all classes, and it was framed as a nostalgic reimagining of the preindustrial rural Britain. Particularly influential was Sir Walter Scott's 1819 novel, Ivanhoe that depicted the heroic character Lockseley winning an archery tournament. A modern sport The 1840s saw the second attempts at turning the recreation into a modern sport. The first Grand National Archery Society meeting was held in York in 1844 and over the next decade the extravagant and festive practices of the past were gradually whittled away and the rules were standardized as the 'York Round' - a series of shoots at , , and . Horace A. Ford helped to improve archery standards and pioneered new archery techniques. He won the Grand National 11 times in a row and published a highly influential guide to the sport in 1856. Towards the end of the 19th century, the sport experienced declining participation as alternative sports such as croquet and tennis became more popular among the middle class. By 1889, just 50 archery clubs were left in Britain, but it was still included as a sport at the 1900 Paris Olympics. The National Archery Association of the United States was organized in 1879, in part by Maurice Thompson (the author of the seminal text “The Witchery of Archery”) and his brother Will Thompson. Maurice was president in its inaugural year and Will was president in 1882, 1903, and 1904. The 1910 President was Frank E Canfield. Today it is known as USA Archery and is recognized by United States Olympic & Paralympic Committee. In the United States, primitive archery was revived in the early 20th century. The last of the Yahi Indian tribe, a native known as Ishi, came out of hiding in California in 1911. His doctor, Saxton Pope, learned many of Ishi's traditional archery skills, and popularized them. From the 1920s, professional engineers took an interest in archery, previously the exclusive field of traditional craft experts. They led the commercial development of new forms of bow including the modern recurve and compound bow. These modern forms are now dominant in modern Western archery; traditional bows are in a minority. Archery returned to the Olympics in 1972. In the 1980s, the skills of traditional archery were revived by American enthusiasts, and combined with the new scientific understanding. Much of this expertise is available in the Traditional Bowyer's Bibles (see Further reading). Modern game archery owes much of its success to Fred Bear, an American bow hunter and bow manufacturer. In 2021, five people were killed and three injured by an archer in Norway in the Kongsberg attack. Mythology Deities and heroes in several mythologies are described as archers, including the Greek Artemis and Apollo, the Roman Diana and Cupid, the Germanic Agilaz, continuing in legends like those of Wilhelm Tell, Palnetoke, or Robin Hood. Armenian Hayk and Babylonian Marduk, Indian Karna (also known as Radheya/son of Radha), Abhimanyu, Eklavya, Arjuna, Bhishma, Drona, Rama, and Shiva were known for their shooting skills. The famous archery competition of hitting the eye of a rotating fish while watching its reflection in the water bowl was one of the many archery skills depicted in the Mahabharata. Persian Arash was a famous archer. Earlier Greek representations of Heracles normally depict him as an archer. Archery, and the bow, play an important part in the epic poem the Odyssey, when Odysseus returns home in disguise and then bests the suitors in an archery competition after hinting at his identity by stringing and drawing his great bow that only he can draw, a similar motif is present in the Turkic Iranian heroic archeheroic poem Alpamysh. The () were worshipped on the Greek island of Delos as attendants of Artemis, presiding over aspects of archery; (), represented distancing, (), trajectory, and (), aim. Yi the archer and his apprentice Feng Meng appear in several early Chinese myths, and the historical character of Zhou Tong features in many fictional forms. Jumong, the first Taewang of the Goguryeo kingdom of the Three Kingdoms of Korea, is claimed by legend to have been a near-godlike archer. Archery features in the story of Oguz Khagan. Similarly, archery and the bow feature heavily into historical Korean identity. In West African Yoruba belief, Osoosi is one of several deities of the hunt who are identified with bow and arrow iconography and other insignia associated with archery. Equipment Types of bows While there is great variety in the construction details of bows (both historical and modern), all bows consist of a string attached to elastic limbs that store mechanical energy imparted by the user drawing the string. Bows may be broadly split into two categories: those drawn by pulling the string directly and those that use a mechanism to pull the string. Directly drawn bows may be further divided based upon differences in the method of limb construction, notable examples being self bows, laminated bows and composite bows. Bows can also be classified by the bow shape of the limbs when unstrung; in contrast to traditional European straight bows, a recurve bow and some types of longbow have tips that curve away from the archer when the bow is unstrung. The cross-section of the limb also varies; the classic longbow is a tall bow with narrow limbs that are D-shaped in cross section, and the flatbow has flat wide limbs that are approximately rectangular in cross-section. Cable-backed bows use cords as the back of the bow; the draw weight of the bow can be adjusted by changing the tension of the cable. They were widespread among Inuit who lacked easy access to good bow wood. One variety of cable-backed bow is the Penobscot bow or Wabenaki bow, invented by Frank Loring (Chief Big Thunder) about 1900. It consists of a small bow attached by cables on the back of a larger main bow. In different cultures, the arrows are released from either the left or right side of the bow, and this affects the hand grip and position of the bow. In Arab archery, Turkish archery, and Japanese archery. The arrows are released from the right hand side of the bow, and this affects construction of the bow. In western archery, the arrow is usually released from the left hand side of the bow for a right-handed archer. Compound bows are designed to reduce the force required to hold the string at full draw, hence allowing the archer more time to aim with less muscular stress. Most compound designs use cams or elliptical wheels on the ends of the limbs to achieve this. A typical let-off is anywhere from 65% to 80%. For example, a bow with 80% let-off only requires to hold at full draw. Up to 99% let-off is possible. The compound bow was invented by Holless Wilbur Allen in the 1960s (a US patent was filed in 1966 and granted in 1969) and it has become the most widely used type of bow for all forms of archery in North America. Mechanically drawn bows typically have a stock or other mounting, such as the crossbow. Crossbows typically have shorter draw lengths compared to compound bows. Because of this, heavier draw weights are required to achieve the same energy transfer to the arrow. These mechanically drawn bows also have devices to hold the tension when the bow is fully drawn. They are not limited by the strength of a single archer and larger varieties have been used as siege engines. Types of arrows and fletchings The most common form of arrow consists of a shaft, with an arrowhead at the front end, and fletchings and a nock at the other end. Arrows across time and history have normally been carried in a container known as a quiver, which can take many different forms. Shafts of arrows are typically composed of solid wood, bamboo, fiberglass, aluminium alloy, carbon fiber, or composite materials. Wooden arrows are prone to warping. Fiberglass arrows are brittle, but can be produced to uniform specifications easily. Aluminium shafts were a very popular high-performance choice in the latter half of the 20th century, due to their straightness, lighter weight, and subsequently higher speed and flatter trajectories. Carbon fiber arrows became popular in the 1990s because they are very light, flying even faster and flatter than aluminium arrows. Today, the most popular arrows at tournaments and Olympic events are made of composite materials. The arrowhead is the primary functional component of the arrow. Some arrows may simply use a sharpened tip of the solid shaft, but separate arrowheads are far more common, usually made from metal, stone, or other hard materials. The most commonly used forms are target points, field points, and broadheads, although there are also other types, such as bodkin, judo, and blunt heads. Fletching is traditionally made from bird feathers, but solid plastic vanes and thin sheet-like spin vanes are used. They are attached near the nock (rear) end of the arrow with thin double sided tape, glue, or, traditionally, sinew. The most common configuration in all cultures is three fletches, though as many as six have been used. Two makes the arrow unstable in flight. When the arrow is three-fletched, the fletches are equally spaced around the shaft, with one placed such that it is perpendicular to the bow when nocked on the string, though variations are seen with modern equipment, especially when using the modern spin vanes. This fletch is called the "index fletch" or "cock feather" (also known as "the odd vane out" or "the nocking vane"), and the others are sometimes called the "hen feathers". Commonly, the cock feather is of a different color. However, if archers are using fletching made of feather or similar material, they may use same color vanes, as different dyes can give varying stiffness to vanes, resulting in less precision. When an arrow is four-fletched, two opposing fletches are often cock feathers, and occasionally the fletches are not evenly spaced. The fletching may be either parabolic cut (short feathers in a smooth parabolic curve) or shield cut (generally shaped like half of a narrow shield), and is often attached at an angle, known as helical fletching, to introduce a stabilizing spin to the arrow while in flight. Whether helical or straight fletched, when natural fletching (bird feathers) is used it is critical that all feathers come from the same side of the bird. Oversized fletchings can be used to accentuate drag and thus limit the range of the arrow significantly; these arrows are called flu-flus. Misplacement of fletchings can change the arrow's flight path dramatically. Bowstring Dacron and other modern materials offer high strength for their weight and are used on most modern bows. Linen and other traditional materials are still used on traditional bows. Several modern methods of making a bowstring exist, such as the 'endless loop' and 'Flemish twist'. Almost any fiber can be made into a bowstring. The author of Arab Archery suggests the hide of a young, emaciated camel. Njál's saga describes the refusal of a wife, Hallgerður, to cut her hair to make an emergency bowstring for her husband, Gunnar Hámundarson, who is then killed. Protective equipment Most modern archers wear a bracer (also known as an arm-guard) to protect the inside of the bow arm from being hit by the string and prevent clothing from catching the bowstring. The bracer does not brace the arm; the word comes from the armoury term "brassard", meaning an armoured sleeve or badge. The Navajo people have developed highly ornamented bracers as non-functional items of adornment. Some archers (nearly all female archers) wear protection on their chests, called chestguards or plastrons. The myth of the Amazons was that they had one breast removed to solve this problem. Roger Ascham mentions one archer, presumably with an unusual shooting style, who wore a leather guard for his face. The drawing digits are normally protected by a leather tab, glove, or thumb ring. A simple tab of leather is commonly used, as is a skeleton glove. Medieval Europeans probably used a complete leather glove. Eurasiatic archers who used the thumb or Mongolian draw protected their thumbs, usually with leather according to the author of Arab Archery, but also with special rings of various hard materials. Many surviving Turkish and Chinese examples are works of considerable art. Some are so highly ornamented that the users could not have used them to loose an arrow. Possibly these were items of personal adornment, and hence value, remaining extant whilst leather had virtually no intrinsic value and would also deteriorate with time. In traditional Japanese archery a special glove is used that has a ridge to assist in drawing the string. Release aids A release aid is a mechanical device designed to give a crisp and precise loose of arrows from a compound bow. In the most commonly used, the string is released by a finger-operated trigger mechanism, held in the archer's hand or attached to their wrist. In another type, known as a back-tension release, the string is automatically released when drawn to a pre-determined tension. Stabilizers Stabilizers are mounted at various points on the bow. Common with competitive archery equipment are special brackets that allow multiple stabilizers to be mounted at various angles to fine tune the bow's balance. Stabilizers aid in aiming by improving the balance of the bow. Sights, quivers, rests, and design of the riser (the central, non-bending part of the bow) make one side of the bow heavier. One purpose of stabilizers are to offset these forces. A reflex riser design will cause the top limb to lean towards the shooter. In this case a heavier front stabilizer is desired to offset this action. A deflex riser design has the opposite effect and a lighter front stabilizer may be used. Stabilizers can reduce noise and vibration. These energies are absorbed by viscoelastic polymers, gels, powders, and other materials used to build stabilizers. Stabilizers improve the forgiveness and accuracy by increasing the moment of inertia of the bow to resist movement during the shooting process. Lightweight carbon stabilizers with weighted ends are desirable because they improve the moment of inertia while minimizing the weight added. Shooting technique and form The standard convention on teaching archery is to hold the bow depending upon eye dominance. (One exception is in modern kyūdō where all archers are trained to hold the bow in the left hand.) Therefore, if one is right-eye dominant, they would hold the bow in the left hand and draw the string with the right hand. However, not everyone agrees with this line of thought. A smoother, and more fluid release of the string will produce the most consistently repeatable shots, and therefore may provide greater accuracy of the arrow flight. Some believe that the hand with the greatest dexterity should therefore be the hand that draws and releases the string. Either eye can be used for aiming, and the less dominant eye can be trained over time to become more effective for use. To assist with this, an eye patch can be temporarily worn over the dominant eye. The hand that holds the bow is referred to as the bow hand and its arm the bow arm. The opposite hand is called the drawing hand or string hand. Terms such as bow shoulder or string elbow follow the same convention. If shooting according to eye dominance, right-eye-dominant archers shooting conventionally hold the bow with their left hand. If shooting according to hand dexterity, the archer draws the string with the hand that possesses the greatest dexterity, regardless of eye dominance. Modern form To shoot an arrow, an archer first assumes the correct stance. The body should be at or nearly perpendicular to the target and the shooting line, with the feet placed shoulder-width apart. As an archer progresses from beginner to a more advanced level other stances such as the "open stance" or the "closed stance" may be used, although many choose to stick with a "neutral stance". Each archer has a particular preference, but mostly this term indicates that the leg furthest from the shooting line is a half to a whole foot-length from the other foot, on the ground. To load, the bow is pointed toward the ground, tipped slightly clockwise of vertical (for a right handed shooter) and the shaft of the arrow is placed on the arrow rest or shelf. The back of the arrow is attached to the bowstring with the nock (a small locking groove located at the proximal end of the arrow). This step is called "nocking the arrow". Typical arrows with three vanes should be oriented such that a single vane, the "cock feather", is pointing away from the bow, to improve the clearance of the arrow as it passes the arrow rest. A compound bow is fitted with a special type of arrow rest, known as a launcher, and the arrow is usually loaded with the cock feather/vane pointed either up, or down, depending upon the type of launcher being used. The bowstring and arrow are held with three fingers, or with a mechanical arrow release. Most commonly, for finger shooters, the index finger is placed above the arrow and the next two fingers below, although several other techniques have their adherents around the world, involving three fingers below the arrow, or an arrow pinching technique. Instinctive shooting is a technique eschewing sights and is often preferred by traditional archers (shooters of longbows and recurves). In either the split finger or three finger under case, the string is usually placed in the first or second joint, or else on the pads of the fingers. When using a mechanical release aid, the release is hooked onto the D-loop. Another type of string hold, used on traditional bows, is the type favoured by the Mongol warriors, known as the "thumb release", style. This involves using the thumb to draw the string, with the fingers curling around the thumb to add some support. To release the string, the fingers are opened out and the thumb relaxes to allow the string to slide off the thumb. When using this type of release, the arrow should rest on the same side of the bow as the drawing hand i.e. Left hand draw = arrow on left side of bow. The archer then raises the bow and draws the string, with varying alignments for vertical versus slightly canted bow positions. This is often one fluid motion for shooters of recurves and longbows, which tend to vary from archer to archer. Compound shooters often experience a slight jerk during the drawback, at around the last , where the draw weight is at its maximum—before relaxing into a comfortable stable full draw position. The archer draws the string hand towards the face, where it should rest lightly at a fixed anchor point. This point is consistent from shot to shot, and is usually at the corner of the mouth, on the chin, to the cheek, or to the ear, depending on preferred shooting style. The archer holds the bow arm outwards, toward the target. The elbow of this arm should be rotated so that the inner elbow is perpendicular to the ground, though archers with hyper extendable elbows tend to angle the inner elbow toward the ground, as exemplified by the Korean archer Jang Yong-Ho. This keeps the forearm out of the way of the bowstring. In modern form, the archer stands erect, forming a "T". The archer's lower trapezius muscles are used to pull the arrow to the anchor point. Some modern recurve bows are equipped with a mechanical device, called a clicker, which produces a clicking sound when the archer reaches the correct draw length. , traditional English Longbow shooters step "into the bow", exerting force with both the bow arm and the string hand arm simultaneously, especially when using bows having draw weights from to over . Heavily stacked traditional bows (recurves, long bows, and the like) are released immediately upon reaching full draw at maximum weight, whereas compound bows reach their maximum weight around the last , dropping holding weight significantly at full draw. Compound bows are often held at full draw for a short time to achieve maximum accuracy. The arrow is typically released by relaxing the fingers of the drawing hand (see bow draw), or triggering the mechanical release aid. Usually the release aims to keep the drawing arm rigid, the bow hand relaxed, and the arrow is moved back using the back muscles, as opposed to using just arm motions. An archer should also pay attention to the recoil or follow through of his or her body, as it may indicate problems with form (technique) that affect accuracy. Aiming methods There are two main forms of aiming in archery: using a mechanical or fixed sight, or barebow. Mechanical sights can be affixed to the bow to aid in aiming. They can be as simple as a pin, or may use optics with magnification. Modern compound bows usually also have a peep sight (rear sight) built into the string, which aids in a consistent anchor point, but this is not allowed for other bow types under World Archery. Modern compound bows automatically limit the draw length to give a consistent arrow velocity, while traditional bows allow great variation in draw length. Some bows use mechanical methods to make the draw length consistent. Barebow archers often use a sight picture, which includes the target, the bow, the hand, the arrow shaft and the arrow tip, as seen at the same time by the archer. With a fixed "anchor point" (where the string is brought to, or close to, the face), and a fully extended bow arm, successive shots taken with the sight picture in the same position fall on the same point. This lets the archer adjust aim with successive shots to achieve accuracy. Modern archery equipment usually includes sights. Instinctive aiming is used by many archers who use traditional bows. The two most common forms of a non-mechanical release are split-finger and three-under. Split-finger aiming requires the archer to place the index finger above the nocked arrow, while the middle and ring fingers are both placed below. Three-under aiming places the index, middle, and ring fingers under the nocked arrow. This technique allows the archer to better look down the arrow since the back of the arrow is closer to the dominant eye, and is commonly called "gun barreling" (referring to common aiming techniques used with firearms). When using short bows or shooting from horseback, it is difficult to use the sight picture. The archer may look at the target, but without including the weapon in the field of accurate view. Aiming then involves hand-eye coordination—which includes proprioception and motor-muscle memory, similar to that used when throwing a ball. With sufficient practice, such archers can normally achieve good practical accuracy for hunting or for war. Aiming without a sight picture may allow more rapid shooting, not however increasing accuracy. Instinctive shooting Instinctive shooting is a style of shooting that includes the barebow aiming method that relies heavily upon the subconscious mind, proprioception, and motor/muscle memory to make aiming adjustments; the term used to refer to a general category of archers who did not use a mechanical or fixed sight. In other words, it is shooting "by feel." Gap shooting Gap shooting is an aiming method used by instinctive shooters. It involves consciously focusing on the tip of the arrow while maintaining awareness of the target. The archer must adjust the arrow's trajectory by gauging the distance between the arrow tip and the target, ensuring accurate shots. Physics When a projectile is thrown by hand, the speed of the projectile is determined by the kinetic energy imparted by the thrower's muscles performing work. However, the energy must be imparted over a limited distance (determined by arm length) and therefore (because the projectile is accelerating) over a limited time, so the limiting factor is not work but rather power, which determines how much energy can be added in the limited time available. Power generated by muscles, however, is limited by force–velocity relationship, and even at the optimal contraction speed for power production, total work by the muscle is less than half of what it would be if the muscle contracted over the same distance at slow speeds, resulting in less than 1/4 the projectile launch velocity possible without the limitations of the force–velocity relationship. When a bow is used, the muscles are able to perform work much more slowly, resulting in greater force and greater work done. This work is stored in the bow as elastic potential energy, and when the bowstring is released, this stored energy is imparted to the arrow much more quickly than can be delivered by the muscles, resulting in much higher velocity and, hence, greater distance. This same process is employed by frogs, which use elastic tendons to increase jumping distance. In archery, some energy dissipates through elastic hysteresis, reducing the overall amount released when the bow is shot. Of the remaining energy, some is dampened both by the limbs of the bow and the bowstring. Depending on the arrow's elasticity, some of the energy is also absorbed by compressing the arrow, primarily because the release of the bowstring is rarely in line with the arrow shaft, causing it to flex out to one side. This is because the bowstring accelerates faster than the archer's fingers can open, and consequently some sideways motion is imparted to the string, and hence arrow nock, as the power and speed of the bow pulls the string off the opening fingers. Even with a release aid mechanism some of this effect is usually experienced, since the string always accelerates faster than the retaining part of the mechanism. This makes the arrow oscillate in flight—its center flexing to one side and then the other repeatedly, gradually reducing as the arrow's flight proceeds. This is clearly visible in high-speed photography of arrows at discharge. A direct effect of these energy transfers can clearly be seen when dry firing. Dry firing refers to releasing the bowstring without a nocked arrow. Because there is no arrow to receive the stored potential energy, almost all the energy stays in the bow. Some have suggested that dry firing may cause physical damage to the bow, such as cracks and fractures—and because most bows are not specifically made to handle the high amounts of energy dry firing produces, should never be done. Modern arrows are made to a specified 'spine', or stiffness rating, to maintain matched flexing and hence accuracy of aim. This flexing can be a desirable feature, since, when the spine of the shaft is matched to the acceleration of the bow(string), the arrow bends or flexes around the bow and any arrow-rest, and consequently the arrow, and fletchings, have an un-impeded flight. This feature is known as the archer's paradox. It maintains accuracy, for if part of the arrow struck a glancing blow on discharge, some inconsistency would be present, and the excellent accuracy of modern equipment would not be achieved. The accurate flight of an arrow depends on its fletchings. The arrow's manufacturer (a "fletcher") can arrange fletching to cause the arrow to rotate along its axis. This improves accuracy by evening pressure buildups that would otherwise cause the arrow to "plane" on the air in a random direction after shooting. Even with a carefully made arrow, the slightest imperfection or air movement causes some unbalanced turbulence in air flow. Consequently, rotation creates an equalization of such turbulence, which, overall, maintains the intended direction of flight i.e. accuracy. This rotation is not to be confused with the rapid gyroscopic rotation of a rifle bullet. Fletching that is not arranged to induce rotation still improves accuracy by causing a restoring drag any time the arrow tilts from its intended direction of travel. The innovative aspect of the invention of the bow and arrow was the amount of power delivered to an extremely small area by the arrow. The huge ratio of length vs. cross sectional area, coupled with velocity, made the arrow more powerful than any other hand held weapon until firearms were invented. Arrows can spread or concentrate force, depending on the application. Practice arrows, for instance, have a blunt tip that spreads the force over a wider area to reduce the risk of injury or limit penetration. Arrows designed to pierce armor in the Middle Ages used a very narrow and sharp tip ("bodkinhead") to concentrate the force. Arrows used for hunting used a narrow tip ("broadhead") that widens further, to facilitate both penetration and a large wound. Hunting Using archery to take game animals is known as "bow hunting". Bow hunting differs markedly from hunting with firearms, as distance between hunter and prey must be much shorter to ensure a humane kill. The skills and practices of bow hunting therefore emphasize very close approach to the prey, whether by still hunting, stalking, or waiting in a blind or tree stand. In many countries, including much of the United States, bow hunting for large and small game is legal. Bow hunters generally enjoy longer seasons than are allowed with other forms of hunting such as black powder, shotgun, or rifle. Usually, compound bows are used for large game hunting due to the relatively short time it takes to master them as opposed to the longbow or recurve bow. These compound bows may feature fiber optic sights, stabilizers, and other accessories designed to increase accuracy at longer distances. Using a bow and arrow to take fish is known as "bow fishing". Modern competitive archery Competitive archery involves shooting arrows at a target for accuracy from a set distance or distances. This is the most popular form of competitive archery worldwide and is called target archery. A form particularly popular in Europe and America is field archery, shot at targets generally set at various distances in a wooded setting. Competitive archery in the United States is governed by USA Archery and National Field Archery Association (NFAA), which also certifies instructors. Para-archery is an adaptation of archery for athletes with a disability, governed by the World Archery Federation (WA), and is one of the sports in the Summer Paralympic Games. There are also several other lesser-known and historical forms of archery, as well as archery novelty games and flight archery, where the aim is to shoot the greatest distance. See also Arash Arab archery Archery Association of India 3D archery Bow draw Bowfishing Bowhunting Clout archery Field archery Gungdo Kyūdō Kyūjutsu Modern competitive archery Mounted archery Run archery Sagittarii Target archery Turkish archery List of archery terms List of notable archers Crossbow References Further reading Enea Bianchi, “Philosophies of Archery”, , in Popular Inquiry, vol.2, 2021, 22-37. Ford, Horace (1887) The Theory and Practice of Archery London: Longmans, Green Elmer, Robert P. (Robert Potter) (1917) American Archery; a Vade Mecum of the Art of Shooting with the Long Bow Columbus, OH: National Archery Association of the United States Hansard, George Agar (1841) The Book of Archery: being the complete history and practice of the art, ancient and modern ... London: H. G. Bohn Hargrove, Ely (1792) Anecdotes of Archery; from the earliest ages to the year 1791. Including an account of the most famous archers of ancient and modern times; with some curious particulars in the life of Robert Fitz-Ooth Earl of Huntington, vulgarly called Robin Hood .... York: printed for E. Hargrove, bookseller, Knaresbro' (later editions: York, 1845 and facsimile reprint, London: Tabard Press, 1970) Heath, E. G. & Chiara, Vilma (1977) Brazilian Indian Archery: a preliminary ethno-toxological study of the archery of the Brazilian Indians. Manchester: Simon Archery Foundation Johnes, Martin. Archery, romance and elite culture in England and Wales, c.1780–1840, 89, 193–208. Klopsteg, Paul (1963) A Chapter in the Evolution of Archery in America Washington, DC: Smithsonian Institution Lake, Fred & Wright, Hal (1974) A Bibliography of Archery: an indexed catalogue of 5,000 articles, books, films, manuscripts, periodicals and theses on the use of the bow for hunting, war, and recreation, from the earliest times to the present day. Manchester: Simon Archery Foundation Morse, Edward (1922) Additional notes on arrow release Salem, Massachusetts: Peabody Museum Pope, Saxton (1925) Hunting with the Bow and Arrow New York: G. P. Putnam's Sons Pope, Saxton (1918) Yahi Archery Berkeley: University of California Press Thompson, Maurice (1878) The Witchery of Archery: a Complete Manual of Archery New York: Scribner & Sons FITA-Style Archery Targets Bow and Arrow Targets The Traditional Bowyer's Bible. [Azle, TX]: Bois d'Arc Press; New York, N.Y.: Distributed by Lyons & Burford The Traditional Bowyer's Bible; Volume 1. 1992. The Traditional Bowyer's Bible; Volume 2. 1992. The Traditional Bowyer's Bible; Volume 3. 1994. ; The Traditional Bowyer's Bible; Volume 4. The Lyons Press, 2008. External links Sportsue at Archery Topic Paralympic archery at IPC web site USA Archery is the National Governing Body Competition Hunting methods Precision sports Summer Olympic sports Warfare of the Middle Ages

2009

https://en.wikipedia.org/wiki/Alvar%20Aalto

Alvar Aalto

Hugo Alvar Henrik Aalto (; 3 February 1898 – 11 May 1976) was a Finnish architect and designer. His work includes architecture, furniture, textiles and glassware, as well as sculptures and paintings. He never regarded himself as an artist, seeing painting and sculpture as "branches of the tree whose trunk is architecture." Aalto's early career ran in parallel with the rapid economic growth and industrialization of Finland during the first half of the 20th century. Many of his clients were industrialists, among them the Ahlström-Gullichsen family, who became his patrons. The span of his career, from the 1920s to the 1970s, is reflected in the styles of his work, ranging from Nordic Classicism of the early work, to a rational International Style Modernism during the 1930s to a more organic modernist style from the 1940s onwards. His architectural work, throughout his entire career, is characterized by a concern for design as Gesamtkunstwerk—a total work of art in which he, together with his first wife Aino Aalto, would design not only the building but the interior surfaces, furniture, lamps, and glassware as well. His furniture designs are considered Scandinavian Modern, an aesthetic reflected in their elegant simplification and concern for materials, especially wood, but also in Aalto's technical innovations, which led him to receiving patents for various manufacturing processes, such as those used to produce bent wood. As a designer he is celebrated as a forerunner of midcentury modernism in design; his invention of bent plywood furniture had a profound impact on the aesthetics of Charles and Ray Eames and George Nelson. The Alvar Aalto Museum, designed by Aalto himself, is located in what is regarded as his home city, Jyväskylä. The entry for him on the Museum of Modern Art website notes his "remarkable synthesis of romantic and pragmatic ideas," adding His work reflects a deep desire to humanize architecture through an unorthodox handling of form and materials that was both rational and intuitive. Influenced by the so-called International Style modernism (or functionalism, as it was called in Finland) and his acquaintance with leading modernists in Europe, including Swedish architect Erik Gunnar Asplund and many of the artists and architects associated with the Bauhaus, Aalto created designs that had a profound impact on the trajectory of modernism before and after World War II. Biography Life Hugo Alvar Henrik Aalto was born in Kuortane, Finland. His father, Johan Henrik Aalto, was a Finnish-speaking land-surveyor and his mother, Selma Matilda "Selly" (née Hackstedt) was a Swedish-speaking postmistress. When Aalto was 5 years old, the family moved to Alajärvi, and from there to Jyväskylä in Central Finland. He studied at the Jyväskylä Lyceum school, where he completed his basic education in 1916, and took drawing lessons from local artist Jonas Heiska. In 1916, he then enrolled to study architecture at the Helsinki University of Technology. His studies were interrupted by the Finnish Civil War, in which he fought. He fought on the side of the White Army and fought at the Battle of Länkipohja and the Battle of Tampere. He built his first piece of architecture while a student; a house for his parents at Alajärvi. Later, he continued his education, graduating in 1921. In the summer of 1922 he began military service, finishing at Hamina reserve officer training school, and was promoted to reserve second lieutenant in June 1923. In 1920, while a student, Aalto made his first trip abroad, travelling via Stockholm to Gothenburg, where he briefly found work with architect Arvid Bjerke. In 1922, he accomplished his first independent piece at the Industrial Exposition in Tampere. In 1923, he returned to Jyväskylä, where he opened an architectural office under the name 'Alvar Aalto, Architect and Monumental Artist'. At that time he wrote articles for the Jyväskylä newspaper Sisä-Suomi under the pseudonym Remus. During this time, he designed a number of small single-family houses in Jyväskylä, and the office's workload steadily increased. On 6 October 1924, Aalto married architect Aino Marsio. Their honeymoon in Italy was Aalto's first trip there, though Aino had previously made a study trip there. The latter trip together sealed an intellectual bond with the culture of the Mediterranean region that remained important to Aalto for life. On their return they continued with several local projects, notably the Jyväskylä Worker's Club, which incorporated a number of motifs which they had studied during their trip, most notably the decorations of the Festival hall modelled on the Rucellai Sepulchre in Florence by Leon Battista Alberti. After winning the architecture competition for the Southwest Finland Agricultural Cooperative building in 1927, the Aaltos moved their office to Turku. They had made contact with the city's most progressive architect, Erik Bryggman before moving. They began collaborating with him, most notably on the Turku Fair of 1928–29. Aalto's biographer, Göran Schildt, claimed that Bryggman was the only architect with whom Aalto cooperated as an equal. With an increasing quantity of work in the Finnish capital, the Aaltos' office moved again in 1933 to Helsinki. The Aaltos designed and built a joint house-office (1935–36) for themselves in Munkkiniemi, Helsinki, but later (1954–56) had a purpose-built office erected in the same neighbourhood – now the former is a "home museum" and the latter the premises of the Alvar Aalto Academy. In 1926, the young Aaltos designed and had built for themselves a summer cottage in Alajärvi, Villa Flora. Aino and Alvar had two children, a daughter, Johanna "Hanni" (married surname Alanen; born 1925), and a son, Hamilkar Aalto (born 1928). Aino Aalto died of cancer in 1949. In 1952, Aalto married architect Elissa Mäkiniemi (died 1994). In 1952, he designed and built a summer cottage, the so-called Experimental House, for himself and his second wife, now Elissa Aalto, in Muuratsalo in Central Finland. Alvar Aalto died on 11 May 1976, in Helsinki, and is buried in the Hietaniemi cemetery in Helsinki. Elissa Aalto became the director of the practice, running the office from 1976−1994. In 1978, the Museum of Finnish Architecture in Helsinki arranged a major exhibition of Aalto's works. Architecture career Early career: classicism Although he is sometimes regarded as among the first and most influential architects of Nordic modernism, closer examination reveals that Aalto (while a pioneer in Finland) closely followed and had personal contacts with other pioneers in Sweden, in particular Gunnar Asplund and Sven Markelius. What they and many others of that generation in the Nordic countries shared was a classical education and an approach to classical architecture that historians now call Nordic Classicism. It was a style that had been a reaction to the previous dominant style of National Romanticism before moving, in the late 1920s, towards Modernism. Upon returning to Jyväskylä in 1923 to establish his own architect's office, Aalto designed several single-family homes designed in the style of Nordic Classicism. For example, the manor-like house for his mother's cousin Terho Manner in Töysa (1923), a summer villa for the Jyväskylä chief constable (also from 1923) and the Alatalo farmhouse in Tarvaala (1924). During this period he completed his first public buildings, the Jyväskylä Workers' Club in 1925, the Jyväskylä Defence Corps Building in 1926 and the Seinäjoki Civil Guard House building in 1924–29. He entered several architectural competitions for prestigious state public buildings, in Finland and abroad. This included two competitions for the Finnish Parliament building in 1923 and 1924, the extension to the University of Helsinki in 1931, and the building to house the League of Nations in Geneva, Switzerland, in 1926–27. Aalto's first church design to be completed, Muurame church, illustrates his transition from Nordic Classicism to Functionalism. This was the period when Aalto was most prolific in his writings, with articles for professional journals and newspapers. Among his most well-known essays from this period are "Urban culture" (1924), "Temple baths on Jyväskylä ridge" (1925), "Abbé Coignard's sermon" (1925), and "From doorstep to living room" (1926). Early career: functionalism The shift in Aalto's design approach from classicism to modernism is epitomised by the Viipuri Library in Vyborg (1927–35), which went through a transformation from an originally classical competition entry proposal to the completed high-modernist building. His humanistic approach is in full evidence in the library: the interior displays natural materials, warm colours, and undulating lines. Due to problems related to financing, compounded by a change of site, the Viipuri Library project lasted eight years. During that time, Aalto designed the Standard Apartment Building (1928–29) in Turku, the Turun Sanomat Building (1929–30), and the Paimio Sanatorium (1929–32), which he designed in collaboration with his first wife Aino Aalto. A number of factors contributed to Aalto's shift towards modernism: his increased familiarity with international trends, facilitated by his travels throughout Europe; the opportunity to experiment with concrete prefabrication in the Standard Apartment Building; the cutting-edge Le Corbusier-inspired formal language of the Turun Sanomat Building; and Aalto's application of both in the Paimio Sanatorium and in the ongoing design for the library. Although the Turun Sanomat Building and Paimio Sanatorium are comparatively pure modernist works, they carried the seeds of his questioning of such an orthodox modernist approach and a move to a more daring, synthetic attitude. It has been pointed out that the planning principle for Paimio Sanatorium – the splayed wings – was indebted to the Zonnestraal Sanatorium (1925–31) by Jan Duiker, which Aalto visited while it was under construction. While these early Functionalist bear hallmarks of influences from Le Corbusier, Walter Gropius, and other key modernist figures of central Europe, Aalto nevertheless started to show his individuality in a departure from such norms with the introduction of organic references. Through Sven Markelius, Aalto became a member of the Congres Internationaux d'Architecture Moderne (CIAM), attending the second congress in Frankfurt in 1929 and the fourth congress in Athens in 1933, where he established a close friendship with László Moholy-Nagy, Sigfried Giedion, and Philip Morton Shand. It was during this time that he closely followed the work of the main force driving the new modernism, Le Corbusier, visiting him in his Paris office several times in the following years. It was not until the completion of the Paimio Sanatorium (1932) and Viipuri Library (1935) that Aalto first achieved world attention in architecture. His reputation grew in the US following the invitation to hold a retrospective exhibition of his works at MOMA in New York in 1938. (This was his first visit to the States.) The exhibition, which later went on a 12-city tour of the country, was a landmark: Aalto was the second-ever architect – after Le Corbusier – to have a solo exhibition at the museum. His reputation grew in the US following the critical reception of his design for the Finnish Pavilion at the 1939 New York World's Fair, described by Frank Lloyd Wright as a "work of genius". It could be said that Aalto's international reputation was sealed with his inclusion in the second edition of Sigfried Giedion's influential book on Modernist architecture, Space, Time, and Architecture: The growth of a new tradition (1949), in which Aalto received more attention than any other Modernist architect, including Le Corbusier. In his analysis of Aalto, Giedion gave primacy to qualities that depart from direct functionality, such as mood, atmosphere, intensity of life, and even national characteristics, declaring that "Finland is with Aalto wherever he goes." Mid career: experimentation During the 1930s Alvar spent some time experimenting with laminated wood, sculpture and abstract relief, characterized by irregular curved forms. Utilizing this knowledge, he was able to solve technical problems concerning the flexibility of wood while at the same time working out spatial issues in his designs. Aalto's early experiments with wood and his move away from a purist modernism would be tested in built form with the commission to design Villa Mairea (1939) in Noormarkku, the luxury home of young industrialist couple Harry and Maire Gullichsen. It was Maire Gullichsen who acted as the main client, and she worked closely not only with Alvar but also with Aino Aalto on the design, encouraging them to be more daring in their work. The building forms a U-shape around a central inner 'garden' whose central feature is a kidney-shaped swimming pool. Adjacent to the pool is a sauna executed in a rustic style, alluding to both Finnish and Japanese precedents. The design of the house is a synthesis of numerous stylistic influences, from traditional Finnish vernacular to purist modernism, as well as influences from English and Japanese architecture. While the house is clearly intended for a wealthy family, Aalto nevertheless argued that it was also an experiment that would prove useful in the design of mass housing. His increased fame led to offers and commissions outside Finland. In 1941, he accepted an invitation as a visiting professor to the Massachusetts Institute of Technology in the US. During the Second World War, he returned to Finland to direct the Reconstruction Office. After the war, he returned to MIT, where he designed the student dormitory Baker House, completed in 1949. The dormitory flanked the Charles River, and its undulating form provided maximum view and ventilation for each resident. This was the first building of Aalto's redbrick period. Originally used in Baker House to signify the Ivy League university tradition, Aalto went on to use it in a number of key buildings after his return to Finland, most notably in several of the buildings in the new Helsinki University of Technology campus (starting in 1950), Säynätsalo Town Hall (1952), Helsinki Pensions Institute (1954), Helsinki House of Culture (1958), as well as in his own summer house, the Experimental House in Muuratsalo (1957). In the 1950s Aalto immersed himself in sculpting, exploring wood, bronze, marble, and mixed media. Among the notable works from this period is his 1960 memorial to the Battle of Suomussalmi. Located on the battlefield, it consists of a leaning bronze pillar on a pedestal. Mature career: monumentalism Foremost among Aalto's work from the early 1960s until his death in 1976 were his projects in Helsinki, in particular the huge town plan for the void in the centre of Helsinki adjacent to Töölö Bay and the vast railway yards, an area marked on the edges by significant buildings such as the National Museum and the main railway station, both by Eliel Saarinen. In his town plan, Aalto proposed a line of separate marble-clad buildings fronting the bay, which would house various cultural institutions, including a concert hall, opera, museum of architecture, and headquarters for the Finnish Academy. The scheme also extended into the Kamppi district with a series of tall office blocks. Aalto first presented his vision in 1961, but it went through various modifications during the early '60s. Only two fragments of the overall plan were realized: the Finlandia Hall concert hall (1976) fronting on Töölö Bay and an office building in the Kamppi district for the Helsinki Electricity Company (1975). Aalto also employed the Miesian formal language of geometric grids used in those buildings for other sites in Helsinki, including the Enso-Gutzeit headquarters building (1962), the Academic Bookstore (1962), and the SYP Bank building (1969). Following Aalto's death in 1976, his office continued to operate under the direction of his widow Elissa, who oversaw the completion of works already designed (to some extent), among them the Jyväskylä City Theatre and Essen opera house. Since the death of Elissa Aalto, the office has continued to operate as the Alvar Aalto Academy, giving advice on the restoration of Aalto buildings and organizing the practice's vast archives. Furniture career Although Aalto was famous for his architecture, his furniture designs were admired and are still popular today. He studied with the architect-designer Josef Hoffmann at the Wiener Werkstätte(engl.: "Vienna Workshop") and worked, for a time, under Eliel Saarinen. He also drew inspiration from Gebrüder Thonet. During the late 1920s and 1930s, he worked closely with Aino Aalto on his furniture designs, a focus due in part to his decision to design many of the individual furniture pieces and lamps for the Paimio Sanatorium. Of particular significance was the Aaltos' experimentation in bent plywood chairs, most notably the so-called Paimio chair, designed for tuberculosis patients, and the Model 60 stacking stool. The Aaltos, together with visual arts promoter Maire Gullichsen and art historian Nils-Gustav Hahl, founded the Artek company in 1935, ostensibly to sell Aalto products but which also imported pieces by other designers. Aalto became the first furniture designer to use the cantilever principle in chair designs using wood. Awards Aalto's awards included the Prince Eugen Medal in 1954, the Royal Gold Medal for Architecture from the Royal Institute of British Architects in 1957 and the Gold Medal from the American Institute of Architects in 1963. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1957. He also was a member of the Academy of Finland, and was its president from 1963 to 1968. From 1925 to 1956 he was a member of the Congrès International d'Architecture Moderne. In 1960 he received an honorary doctorate at the Norwegian University of Science and Technology (NTNU). Works Aalto's career spans the changes in style from (Nordic Classicism) to purist International Style Modernism to a more personal, synthetic, and idiosyncratic Modernism. Aalto's wide field of design activity ranges from large-scale projects such as city planning and architecture to more intimate, human-scale work in interior design, furniture and glassware design, and painting. It has been estimated that during his entire career Aalto designed over 500 individual buildings, approximately 300 of which were built. The vast majority of them are in Finland. He also has a few buildings in France, Germany, Italy, and the US. Aalto's work with wood was influenced by early Scandinavian architects. His experiments and bold departures from aesthetic norms brought attention to his ability to make wood do things not previously done. His techniques in the way he cut beech wood, for example, and his ability to use plywood as a structural element while at the same time exploiting its aesthetic properties, were at once technically innovative and artistically inspired. Other examples of his boundary-pushing sensibility include the vertical placement of rough-hewn logs at his pavilion at the Lapua expo, a design element that evoked a medieval barricade. At the orchestra platform at Turku and the Paris expo at the World Fair, he used varying sizes and shapes of planks. Also at Paris (and at Villa Mairea), he utilized birch boards in a vertical arrangement. His Vyborg Library, built in what was then Viipuri (it became Vyborg after Soviet annexation in 1944), is acclaimed for its stunning ceiling, with its undulating waves of red-hearted pine (which grows in the region ). In his roofing, he created massive spans (155-foot at the covered stadium at Otaniemi), all without tie rods. In his stairway at Villa Mairea, he evokes the feeling of a natural forest by binding beech wood with withes into columns. Aalto claimed that his paintings were not made as individual artworks but as part of his process of architectural design, and many of his small-scale "sculptural" experiments with wood led to later larger architectural details and forms. These experiments also led to a number of patents: for example, he invented a new form of laminated bent-plywood furniture in 1932 (which was patented in 1933). His experimental method had been influenced by his meetings with various members of the Bauhaus design school, especially László Moholy-Nagy, whom he first met in 1930. Aalto's furniture was exhibited in London in 1935, to great critical acclaim. To cope with the consumer demand, Aalto, together with his wife Aino, Maire Gullichsen, and Nils-Gustav Hahl founded the company Artek that same year. Aalto glassware (Aino as well as Alvar) is manufactured by Iittala. Aalto's 'High Stool' and 'Stool E60' (manufactured by Artek) are currently used in Apple Stores across the world to serve as seating for customers. Finished in black lacquer, the stools are used to seat customers at the 'Genius Bar' and also in other areas of the store at times when seating is required for a product workshop or special event. Aalto was also influential in bringing modern art to the attention of the Finnish people, in particular the work of his friends Alexander Milne Calder and Fernand Léger. Significant buildings 1921–1923: Bell tower of Kauhajärvi Church, Lapua, Finland 1924–1926: Seinäjoki Civil Guard House, Seinäjoki, Finland 1924–1928: Municipal hospital, Alajärvi, Finland 1926–1929: Defence Corps Building, Jyväskylä, Finland 1927–1928: South-West Finland Agricultural Cooperative building, Turku, Finland 1927–1935: Municipal library, Viipuri, Finland (now Vyborg, Russia) 1928–1929, 1930: Turun Sanomat newspaper offices, Turku, Finland 1928–1933: Paimio Sanatorium, Tuberculosis sanatorium and staff housing, Paimio, Finland 1931: Toppila paper mill in Oulu, Finland 1931: Central University Hospital, Zagreb, Croatia (former Yugoslavia) 1932: Villa Tammekann, Tartu, Estonia 1934: Corso theatre, restaurant interior, Zürich, Switzerland 1936–1939: Ahlstrom Sunila Pulp Mill, Housing, and Town Plan, Kotka, Finland 1937–1939: Villa Mairea, Noormarkku, Finland 1939: Finnish Pavilion, at the 1939 New York World's Fair 1945: Sawmill at Varkaus, Finland 1947–1948: Baker House, Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S. 1949–1966: Helsinki University of Technology, Espoo, Finland 1949–1952: Säynätsalo Town Hall, Säynätsalo (now part of Jyväskylä), Finland; 1949 competition, built 1952 1950–1957: National Pension Institution office building, Helsinki, Finland 1951–1971: University of Jyväskylä various buildings and facilities on the university campus, Jyväskylä, Finland 1952–1958: House of Culture, Helsinki, Finland 1953: The Experimental House, Muuratsalo, Finland 1953–1955: Rautatalo office building, Helsinki, Finland 1956–1958: Home for Louis Carré, Bazoches, France 1956–1958: Church of the Three Crosses, Vuoksenniska, Imatra, Finland 1957–1967: city center (library, theatre, City Hall, Lakeuden Risti Church and central administrative buildings), Seinäjoki, Finland 1958: Post and telegraph office, Baghdad, Iraq 1958–1972: KUNSTEN Museum of Modern Art Aalborg, Aalborg, Denmark 1959–1962: Community Centre, Wolfsburg, Germany 1959–1962: Church of the Holy Ghost (Heilig-Geist-Gemeindezentrum), Wolfsburg, Germany 1959–1962: Enso-Gutzeit headquarters, Helsinki, Finland 1961–1975: Lappia Hall performing arts and conference venue, Rovaniemi, Finland; part of the city's 'Aalto Centre' 1962: Aalto-Hochhaus, Bremen, Germany 1964–1965: Kaufmann Conference Center at the Institute of International Education, New York City, U.S. 1965: Rovaniemi library, Rovaniemi, Finland 1962–1971: Finlandia Hall, Helsinki, Finland 1963–1968: Church of St Stephen (Stephanus Kirche), Detmerode, Wolfsburg, Germany 1963–1965: Building for Västmanland-Dala nation, Uppsala, Sweden 1967–1970: Library at the Mount Angel Abbey, St. Benedict, Salem, Oregon, U.S. 1965–1968: Nordic House, Reykjavík, Iceland 1966: Church of the Assumption of Mary, Riola di Vergato, Italy (built 1975–1978) 1973: Alvar Aalto Museum, a.k.a. Taidemuseo, Jyväskylä, Finland 1970–1973: Sähkötalo, Helsinki, Finland 1978 (completed): Ristinkirkko, Lahti, Finland 1959–1988: Essen opera house, Essen, Germany 1986: Rovaniemi city hall, Rovaniemi, Finland Furniture and glassware Chairs 1932: Paimio Chair 1933: Model 60 stacking stool 1933: Four-legged Stool E60 1935–36: Armchair 404 (a/k/a/ Zebra Tank Chair) 1939: Armchair 406 Lamps 1954: Floor lamp A805 1959: Floor lamp A810 Vases 1936: Aalto Vase Quotations "God created paper for the purpose of drawing architecture on it. Everything else, at least for me, is a misuse of paper." Alvar Aalto, "In lieu of an article", Arkkitehti no. 1-2, 1958. "We should work for simple, good, undecorated things...things which are in harmony with the human being and organically suited to the little man in the street." Alvar Aalto, speech in London 1957. "It’s not an art to take and copy everything from tradition or past. It’s necessary to take the material and energy from nature and respond with the work of art, bringing your own psychical energy into it. We are prone to take everything from nature without giving anything in return. That’s not good – it can take a revenge on us.” Critique of Aalto's architecture As mentioned above, Aalto's international reputation was sealed with his inclusion in the second edition of Sigfried Giedion's influential book on Modernist architecture, Space, Time and Architecture: The growth of a new tradition (1949), in which Aalto received more attention than any other Modernist architect, including Le Corbusier. In his analysis of Aalto, Giedion gave primacy to qualities that depart from direct functionality, such as mood, atmosphere, intensity of life and even national characteristics, declaring that "Finland is with Aalto wherever he goes." More recently, however, some architecture critics and historians have questioned Aalto's influence on the historical canon. The Italian Marxist architecture historians Manfredo Tafuri and Francesco Dal Co contend that Aalto's "historical significance has perhaps been rather exaggerated; with Aalto we are outside of the great themes that have made the course of contemporary architecture so dramatic. The qualities of his works have a meaning only as masterful distractions, not subject to reproduction outside the remote reality [sic] in which they have their roots." At the heart of their critique was the perception of Aalto's work as unsuited to the urban context: "Essentially, his architecture is not appropriate to urban typologies." At the other end of the political spectrum (though similarly concerned with the appropriateness of Aalto's formal language), the American cultural theorist and architectural historian Charles Jencks singled out his Pensions Institute as an example of what he termed the architect's "soft paternalism": "Conceived as a fragmented mass to break up the feeling of bureaucracy, it succeeds all too well in being humane and killing the pensioner with kindness. The forms are familiar – red brick and ribbon-strip windows broken by copper and bronze elements – all carried through with a literal-mindedness that borders on the soporific." During his lifetime, Aalto faced criticisms from his fellow architects in Finland, most notably Kirmo Mikkola and Juhani Pallasmaa. By the last decade of Aalto's life, his work was seen as unfashionably individualistic at a time when the opposing tendencies of rationalism and constructivism – often championed under left-wing politics – argued for anonymous, aggressively non-aesthetic architecture. Of Aalto's late works, Mikkola wrote, "Aalto has moved to [a] baroque line..." Memorials Aalto has been commemorated in a number of ways: Alvar Aalto is the eponym of the Alvar Aalto Medal, now considered one of world architecture's most prestigious awards. Aalto was featured in the 50 mk note in the last series of the Finnish markka (before its replacement by the Euro in 2002). The centenary of Aalto's birth in 1998 was marked in Finland not only by several books and exhibitions, but also by the promotion of specially bottled red and white Aalto Wine and a specially designed cupcake. In 1976, the year of his death, Aalto was commemorated on a Finnish postage stamp. Piazza Alvar Aalto, a square named after Aalto, can be found in the Porta Nuova business district of Milan, Italy. Aalto University, a Finnish university formed by merging Helsinki University of Technology, Helsinki School of Economics and TaiK in 2010, is named after Alvar Aalto. An Alvar Aallon katu (Alvar Aalto Street) can be found in five different Finnish cities: Helsinki, Jyväskylä, Oulu, Kotka and Seinäjoki. In 2017, the Alvar Aalto Museum launched Alvar Aalto Cities, that is, a network of cities containing buildings by Alvar Aalto. The objective of the network is to increase awareness of Aalto's work both in Finland and abroad. It is hoped that by combining forces on communications and marketing, the visibility and accessibility of exhibitions, tourist attractions and events will be improved. To date, the network city members are: Aalborg, Alajärvi, Espoo, Eura, Hamina, Helsinki, Imatra, Jyväskylä, Järvenpää, Kotka, Kouvola, Lahti, Oulu, Paimio, Pori, Raseborg, Rovaniemi, Seinäjoki, Turku, Vantaa and Varkaus. It is estimated that in total there would be 40 cities worldwide that would qualify as an Alvar Aalto City. See also Architecture of Finland Aino Aalto Elissa Aalto References Sources Further reading Göran Schildt has written and edited many books on Aalto, the most well-known being the three-volume biography, usually referred to as the definitive biography on Aalto. Other books Jormakka, Kari; Gargus, Jacqueline; Graf, Douglas The Use and Abuse of Paper. Essays on Alvar Aalto. Datutop 20: Tampere 1999. Aalto research The extensive archives of Alvar Aalto are nowadays kept at the Alvar Aalto Museum, Jyväskylä, Finland. Material is also available from the former offices of Aalto, at Tiilimäki 20, Helsinki, nowadays the headquarters of the Alvar Aalto Foundation. Since 1995 the Alvar Aalto Museum and Aalto Academy has published a journal, Ptah, which is devoted not only to Aalto scholarship but also to architecture generally as well as theory, design and art. External links Archives Alvar Aalto Foundation Custodian of Aalto's architectural drawings and writings. Institute of International Education, Kaufmann Conference Rooms architectural drawings and papers, 1961–1966.Held by the Department of Drawings & Archives, Avery Architectural & Fine Arts Library, Columbia University. Resources Alvar Aalto biography at FinnishDesign.com Short Biographies: Alvar Aalto Aalto bibliography – From the official site Alvar Aalto – Design Dictionary Illustrated article about Alvar Aalto Alvar Aalto Biography in Spanish about Alvar Aalto Modern Furniture and the history of Moulded Plywood Role played by Alvar Alto in the use of Moulded plywood for furniture. Alvar Aalto on Empty Canon Map of the Alvar Aalto works – Wikiartmap, the art map of the public space Catalogs Artek.fi, Aalto furniture; company founded by Aalto. Alvar Aalto glassware, iittala.com Between Humanism and Materialism New York Museum of Modern Art exhibit site. Contains an especially useful timeline of his life and career. Buildings and reviews Checkonsite.com – Alvar Aalto architecture guide. "Ahead of the curve" The Guardian – Fiona MacCarthy recalls a shared lunch of smoked reindeer and schnapps in his elegant Helsinki restaurant Baker House North Jutland Museum S. Maria Assunta – Riola BO Italy 1898 births 1976 deaths People from Kuortane People from Vaasa Province (Grand Duchy of Finland) People of the Finnish Civil War (White side) 20th-century Finnish architects Finnish furniture designers Finnish industrial designers Modernist architects International style architects Congrès International d'Architecture Moderne members Modernist architecture in Finland Recipients of the Royal Gold Medal Aalto University alumni Fellows of the American Academy of Arts and Sciences Members of the Academy of Arts, Berlin Recipients of the Prince Eugen Medal Recipients of the Pour le Mérite (civil class) Burials at Hietaniemi Cemetery Recipients of the AIA Gold Medal Honorary Fellows of the American Institute of Architects

2011

https://en.wikipedia.org/wiki/Comparison%20of%20American%20and%20British%20English

Comparison of American and British English

The English language was introduced to the Americas by British colonisation, beginning in the late 16th and early 17th centuries. The language also spread to numerous other parts of the world as a result of British trade and colonisation and the spread of the former British Empire, which, by 1921, included 470–570 million people, about a quarter of the world's population. Note that in England, Wales, Ireland and especially parts of Scotland there are differing varieties of the English language, so the term 'British English' is an oversimplification. Written forms of 'British' and American English as found in newspapers and textbooks vary little in their essential features, with only occasional noticeable differences. Over the past 400 years, the forms of the language used in the Americas—especially in the United States—and that used in the United Kingdom have diverged in a few minor ways, leading to the versions now often referred to as American English and British English. Differences between the two include pronunciation, grammar, vocabulary (lexis), spelling, punctuation, idioms, and formatting of dates and numbers. However, the differences in written and most spoken grammar structure tend to be much fewer than in other aspects of the language in terms of mutual intelligibility. A few words have completely different meanings in the two versions or are even unknown or not used in one of the versions. One particular contribution towards formalising these differences came from Noah Webster, who wrote the first American dictionary (published 1828) with the intention of showing that people in the United States spoke a different dialect from those spoken in the UK, much like a regional accent. This divergence between American English and British English has provided opportunities for humorous comment: e.g. in fiction George Bernard Shaw says that the United States and United Kingdom are "two countries divided by a common language"; and Oscar Wilde says that "We have really everything in common with America nowadays, except, of course, the language" (The Canterville Ghost, 1888). Henry Sweet incorrectly predicted in 1877 that within a century American English, Australian English and British English would be mutually unintelligible (A Handbook of Phonetics). Perhaps increased worldwide communication through radio, television, the Internet and globalisation has tended to reduce regional variation. This can lead to some variations becoming extinct (for instance the wireless being progressively superseded by the radio) or the acceptance of wide variations as "perfectly good English" everywhere. Although spoken American and British English are generally mutually intelligible, there are occasional differences which might cause embarrassment—for example, in American English a rubber is usually interpreted as a condom rather than an eraser;. Word derivation and compounds Directional suffix -ward(s): British forwards, towards, rightwards, etc.; American forward, toward, rightward. In both varieties distribution varies somewhat: afterwards, towards, and backwards are not unusual in America; while in the United Kingdom upward and rightward are the more common options, as is forward, which is standard in phrasal verbs such as look forward to. The forms with -s may be used as adverbs (or preposition towards) but rarely as adjectives: in the UK, as in America, one says "an upward motion". The Oxford English Dictionary in 1897 suggested a semantic distinction for adverbs, with -wards having a more definite directional sense than -ward; subsequent authorities such as Fowler have disputed this contention. American English (AmE) freely adds the suffix -s to day, night, evening, weekend, Monday, etc. to form adverbs denoting repeated or customary action: I used to stay out evenings; the library is closed on Saturdays. This usage has its roots in Old English but many of these constructions are now regarded as American (for example, the OED labels nights "now chiefly N. Amer. colloq." in constructions such as to sleep nights, but to work nights is standard in British English). In British English (BrE), the agentive -er suffix is commonly attached to football to refer to one who plays the sport (also cricket; often netball; occasionally basketball and volleyball). AmE usually uses football player. Where the sport's name is usable as a verb, the suffixation is standard in both varieties: for example, golfer, bowler (in ten-pin bowling and in lawn bowls), and shooter. AmE appears sometimes to use the form baller as slang for a basketball player, as in the video game NBA Ballers. However, this is derived from slang use of to ball as a verb meaning to play basketball. English writers everywhere occasionally make new compound words from common phrases; for example, health care is now being replaced by healthcare on both sides of the Atlantic. However, AmE has made certain words in this fashion that are still treated as phrases in BrE. In compound nouns of the form <verb><noun>, sometimes AmE prefers the bare infinitive where BrE favours the gerund. Examples include (AmE first): jump rope/skipping rope; racecar/racing car; rowboat/rowing boat; sailboat/sailing boat; file cabinet/filing cabinet; dial tone/dialling tone; drainboard/draining board. Generally AmE has a tendency to drop inflectional suffixes, thus preferring clipped forms: compare cookbook v. cookery book; Smith, age 40 v. Smith, aged 40; skim milk v. skimmed milk; dollhouse v. dolls' house; barber shop v. barber's shop. Singular attributives in one country may be plural in the other, and vice versa. For example, the UK has a drugs problem, while the United States has a drug problem (although the singular usage is also commonly heard in the UK); Americans read the sports section of a newspaper; the British are more likely to read the sport section. However, BrE maths is singular, like physics, just as AmE math is: both are abbreviations of mathematics. Some British English words come from French roots, while American English finds its words from other places, e.g. AmE eggplant and zucchini are aubergine and courgette in BrE. Similarly, American English has occasionally replaced more traditional English words with their Spanish counterparts. This is especially common in regions historically affected by Spanish settlement (such as the American Southwest and Florida) as well as other areas that have since experienced strong Hispanic migration (such as urban centers). Examples of these include grocery markets' preference in the U.S. for Spanish names such as cilantro and manzanilla over coriander and camomile respectively. Vocabulary The familiarity of speakers with words and phrases from different regions varies, and the difficulty of discerning an unfamiliar definition also depends on the context and the term. As expressions spread with the globalisation of telecommunication, they are often but not always recognised as foreign to the speaker's dialect, and words from other dialects may carry connotations with regard to register, social status, origin, and intelligence. Words and phrases with different meanings Words such as bill and biscuit are used regularly in both AmE and BrE but can mean different things in each form. The word "bill" has several meanings, most of which are shared between AmE and BrE. However, in AmE "bill" often refers to a piece of paper money (as in a "dollar bill") which in BrE is more commonly referred to as a note. In AmE it can also refer to the visor of a cap, though this is by no means common. In AmE a biscuit (from the French "twice baked" as in biscotto) is a soft bready product that is known in BrE as a scone or a specifically hard, sweet biscuit. Meanwhile, a BrE biscuit incorporates both dessert biscuits and AmE cookies (from the Dutch 'little cake'). As chronicled by Winston Churchill, the opposite meanings of the verb to table created a misunderstanding during a meeting of the Allied forces; in BrE to table an item on an agenda means to open it up for discussion whereas in AmE, it means to remove it from discussion, or at times, to suspend or delay discussion; e.g. Let's table that topic for later. The word "football" in BrE refers to association football, also known in the US as soccer. In AmE, "football" means American football. The standard AmE term "soccer", a contraction of "association (football)", is actually of British origin, derived from the formalisation of different codes of football in the 19th century, and was a fairly unremarkable usage (possibly marked for class) in BrE until later; in Britain it became perceived as an Americanism. In non-American and non-Canadian contexts, particularly in sports news from outside the United States and Canada, American (or US branches of foreign) news agencies and media organisations also use "football" to mean "soccer", especially in direct quotes. Similarly, the word "hockey" in BrE refers to field hockey and in AmE, "hockey" means ice hockey. Words with completely different meanings are relatively few; most of the time there are either (1) words with one or more shared meanings and one or more meanings unique to one variety (for example, bathroom and toilet) or (2) words the meanings of which are actually common to both BrE and AmE but that show differences in frequency, connotation or denotation (for example, smart, clever, mad). Some differences in usage and meaning can cause confusion or embarrassment. For example, the word fanny is a slang word for vulva in BrE but means buttocks in AmE—the AmE phrase fanny pack is bum bag in BrE. In AmE the word pissed means being annoyed or angry whereas in BrE it is a coarse word for being drunk (in both varieties, pissed off means irritated). Similarly, in AmE the word pants is the common word for the BrE trousers and knickers refers to a variety of half-length trousers (though most AmE users would use the term "shorts" rather than knickers), while the majority of BrE speakers would understand pants to mean underpants and knickers to mean female underpants. Sometimes the confusion is more subtle. In AmE the word quite used as a qualifier is generally a reinforcement, though it is somewhat uncommon in actual colloquial American use today and carries an air of formality: for example, "I'm quite hungry" is a very polite way to say "I'm very hungry". In BrE quite (which is much more common in conversation) may have this meaning, as in "quite right" or "quite mad", but it more commonly means "somewhat", so that in BrE "I'm quite hungry" can mean "I'm somewhat hungry". This divergence of use can lead to misunderstanding. Different terms in different dialects Most speakers of American English are aware of some uniquely British terms. It is generally very easy to guess what some words, such as BrE "driving licence", mean, the AmE equivalent being "driver's license". However, use of many other British words such as naff (slang but commonly used to mean "not very good") are unheard of in American English. Speakers of BrE usually find it easy to understand most common AmE terms, such as "sidewalk (pavement or footpath)", "gas (gasoline/petrol)", "counterclockwise (anticlockwise)" or "elevator (lift)", thanks in large part to considerable exposure to American popular culture and literature. Terms heard less often, especially when rare or absent in American popular culture, such as "copacetic (very satisfactory)", are unlikely to be understood by most BrE speakers. Other examples: In the UK the word whilst is commonly used as a conjunction (as an alternative to while, especially prevalent in some dialects). Whilst tends to appear in non-temporal senses, as when used to point out a contrast. In AmE while is used in both contexts, with whilst being much more uncommon. Other words with the -st ending are also found even in AmE as much as in BrE, despite being old-fashioned or an affectation (e.g., unbeknownst, midst). Historically, the word against falls into this category also, and is standard in both varities. In the UK generally the use of fall to mean "autumn" is obsolete. Although found often from Elizabethan literature to Victorian literature, the seasonal use of fall remains easily understandable to BrE speakers only because it is so commonly used that way in the U.S. In the UK the term period for a full stop is not used; in AmE the term full stop is rarely, if ever, used for the punctuation mark and commonly not understood whatsoever. For example, British Prime Minister Tony Blair said, "Terrorism is wrong, full stop", whereas in AmE, the equivalent sentence is "Terrorism is wrong, period." The use of period as an interjection meaning "and nothing else; end of discussion" is beginning to be used in colloquial British English, though sometimes without conscious reference to punctuation. In the US, the word line is used to refer to a line of people, vehicles, or other objects, while in the UK queue refers to that meaning. In the US, the word queue is most commonly used to refer to the computing sense of a data structure in which objects are added to one end and removed from the other. In the US, the equivalent terms to "queue up" and "wait in queue" are "line up" or "get in line" and "wait in line." The equivalent term to "jumping the queue" is "cutting in line." Holiday greetings It is increasingly common for Americans to say "Happy holidays", referring to all, or at least multiple, winter (in the Northern hemisphere) or summer (in the Southern hemisphere) holidays (Christmas, Hanukkah, Kwanzaa, etc.) especially when one's religious observances are not known; the phrase is rarely heard in the UK. In the UK, the phrases "holiday season" and "holiday period" refer to the period in the summer when most people take time off from work, and travel; AmE does not use holiday in this sense, instead using vacation for recreational excursions. In AmE, the prevailing Christmas greeting is "Merry Christmas", which is the traditional English Christmas greeting, as found in the English Christmas carol "We Wish You a Merry Christmas", and which appears several times in Charles Dickens' A Christmas Carol. In BrE, "Happy Christmas" is a common alternative to "Merry Christmas". Idiosyncratic differences Omission of "and" and "on" Generally in British English, numbers with a value over one hundred have the word "and" inserted before the last two digits. For example, the number 115, when written in words or spoken aloud, would be "One hundred and fifteen", in British English. In American English, numbers are typically said or written in words in the same way, however if the word "and" is omitted ("One hundred fifteen"), this is also considered acceptable (in BrE this would be considered grammatically incorrect). Likewise, in the US, the word "on" can be left out when referring to events occurring on any particular day of the week. The US possibility "The Cowboys won the game Saturday" would have the equivalent in the UK of "Sheffield United won the match on Saturday." Figures of speech Both BrE and AmE use the expression "I couldn't care less", to mean that the speaker does not care at all. Some Americans use "I could care less" to mean the same thing. This variant is frequently derided as sloppy, as the literal meaning of the words is that the speaker does care to some extent. In both areas, saying, "I don't mind" often means, "I'm not annoyed" (for example, by someone's smoking), while "I don't care" often means, "The matter is trivial or boring". However, in answering a question such as "Tea or coffee?", if either alternative is equally acceptable an American may answer, "I don't care", while a British person may answer, "I don't mind". Either can sound odd, confusing, or rude, to those accustomed to the other variant. "To be all set in both BrE and AmE can mean "to be prepared or ready", though it appears to be more common in AmE. It can also have an additional meaning in AmE of "to be finished or done", for example, a customer at a restaurant telling a waiter "I'm all set. I'll take the check." Equivalent idioms A number of English idioms that have essentially the same meaning show lexical differences between the British and the American version; for instance: In the US, a "carpet" typically refers to a fitted carpet, rather than a rug. Social and cultural differences Lexical items that reflect separate social and cultural development. Education Primary and secondary school The US has a more uniform nationwide system of terms than does the UK, where terminology and structure varies among constituent countries, but the division by grades varies somewhat among the states and even among local school districts. For example, elementary school often includes kindergarten and may include sixth grade, with middle school including only two grades or extending to ninth grade. In the UK, the US equivalent of a high school is often referred to as a "secondary school" regardless of whether it is state funded or private. US Secondary education also includes middle school or junior high school, a two- or three-year transitional school between elementary school and high school. "Middle school" is sometimes used in the UK as a synonym for the younger junior school, covering the second half of the primary curriculum, current years four to six in some areas. However, in Dorset (South England), it is used to describe the second school in the three-tier system, which is normally from year 5 to year 8. In other regions, such as Evesham and the surrounding area in Worcestershire, the second tier goes from year 6 to year 8, and both starting secondary school in year nine. In Kirklees, West Yorkshire, in the villages of the Dearne Valley there is a three tier system: first schools year reception to year five, middle school (Scissett/Kirkburton Middle School) year 6 to year 8, and high school year 9 to year 13. A public school has opposite meanings in the two countries. In American English this is a government-owned institution open to all students, supported by public funding. The British English use of the term is in the context of "private" education: to be educated privately with a tutor. In England and Wales the term strictly refers to an ill-defined group of prestigious private independent schools funded by students' fees, although it is often more loosely used to refer to any independent school. Independent schools are also known as "private schools", and the latter is the term used in Scotland and Northern Ireland for all such fee-funded schools. Strictly, the term public school is not used in Scotland and Northern Ireland in the same sense as in England, but nevertheless Gordonstoun, the Scottish private school, is sometimes referred to as a public school, as are some other Scottish private schools. Government-funded schools in Scotland and Northern Ireland are properly referred to as "state schools" but are sometimes confusingly referred to as "public schools" (with the same meaning as in the US), and in the US, where most public schools are administered by local governments, a state school typically refers to a college or university run by one of the U.S. states. Speakers in both the United States and the United Kingdom use several additional terms for specific types of secondary school. A US prep school or preparatory school is an independent school funded by tuition fees; the same term is used in the UK for a private school for pupils under 13, designed to prepare them for fee-paying public schools. In the US, Catholic schools cover costs through tuition and have affiliations with a religious institution, most often a Catholic church or diocese. In England, where the state-funded education system grew from parish schools organised by the local established church, the Church of England (C of E, or CE), and many schools, especially primary schools (up to age 11) retain a church connection and are known as church schools, CE schools or CE (aided) schools. There are also faith schools associated with the Roman Catholic Church and other major faiths, with a mixture of funding arrangements. In Scotland, Catholic schools are generally operated as government-funded state schools for Catholic communities, particularly in large cities such as Glasgow. In the US, a magnet school receives government funding and has special admission requirements: in some cases pupils gain admission through superior performance on admission tests, while other magnet schools admit students through a lottery. The UK has city academies, which are independent privately sponsored schools run with public funding and which can select up to 10% of pupils by aptitude. Moreover, in the UK 36 local education authorities retain selection by ability at 11. They maintain grammar schools (state funded secondary schools), which admit pupils according to performance in an examination (known as the 11+) and comprehensive schools that take pupils of all abilities. Grammar schools select the most academically able 10% to 23% of those who sit the exam. Students who fail the exam go to a secondary modern school, sometimes called a "high school", or increasingly an "academy". In areas where there are no grammar schools the comprehensives likewise may term themselves high schools or academies. Nationally only 6% of pupils attend grammar schools, mainly in four distinct counties. Some private schools are called "grammar schools", chiefly those that were grammar schools long before the advent of state education. University In the UK a university student is said to "study", to "read" or, informally, simply to "do" a subject. In the recent past the expression 'to read a subject' was more common at the older universities such as Oxford and Cambridge. In the US a student studies or majors in a subject (although a student's major, concentration or, less commonly, emphasis is also used in US colleges or universities to refer to the major subject of study). To major in something refers to the student's principal course of study; to study may refer to any class being taken. BrE: AmE: At university level in BrE, each module is taught or facilitated by a lecturer or tutor; professor is the job-title of a senior academic (in AmE, at some universities, the equivalent of the BrE lecturer is instructor, especially when the teacher has a lesser degree or no university degree, though the usage may become confusing according to whether the subject being taught is considered technical or not; it is also different from adjunct instructor/professor). In AmE each class is generally taught by a professor (although some US tertiary educational institutions follow the BrE usage), while the position of lecturer is occasionally given to individuals hired on a temporary basis to teach one or more classes and who may or may not have a doctoral degree. The word course in American use typically refers to the study of a restricted topic or individual subject (for example, "a course in Early Medieval England", "a course in integral calculus") over a limited period of time (such as a semester or term) and is equivalent to a module or sometimes unit at a British university. In the UK, a course of study or simply course is likely to refer to the entire programme of study, which may extend over several years and be made up of any number of modules, hence it is also practically synonymous to a degree programme. A few university-specific exceptions exist: for example, at Cambridge the word paper is used to refer to a module, while the whole course of study is called tripos. A dissertation in AmE refers to the final written product of a doctoral student to fulfil the requirement of that program. In BrE, the same word refers to the final written product of a student in an undergraduate or taught master's programme. A dissertation in the AmE sense would be a thesis in BrE, though dissertation is also used. Another source of confusion is the different usage of the word college. (See a full international discussion of the various meanings at college.) In the US, it refers to a post-high school institution that grants either associate's or bachelor's degrees, and in the UK, it refers to any post-secondary institution that is not a university (including sixth form college after the name in secondary education for years 12 and 13, the sixth form) where intermediary courses such as A levels or NVQs can be taken and GCSE courses can be retaken. College may sometimes be used in the UK or in Commonwealth countries as part of the name of a secondary or high school (for example, Dubai College). In the case of Oxford, Cambridge, Aberdeen, London, Lancaster, Durham, Kent and York universities, all members are also members of a college which is part of the university, for example, one is a member of King's College, Cambridge and hence of the university. In both the US and UK college can refer to some division within a university that comprises related academic departments such as the "college of business and economics" though in the UK "faculty" is more often used. Institutions in the US that offer two to four years of post-high school education often have the word college as part of their name, while those offering more advanced degrees are called a university. (There are exceptions: Boston College, Dartmouth College and the College of William & Mary are examples of colleges that offer advanced degrees, while Vincennes University is an unusual example of a "university" that offers only associate degrees in the vast majority of its academic programs.) American students who pursue a bachelor's degree (four years of higher education) or an associate degree (two years of higher education) are college students regardless of whether they attend a college or a university and refer to their educational institutions informally as colleges. A student who pursues a master's degree or a doctorate degree in the arts and sciences is in AmE a graduate student; in BrE a postgraduate student although graduate student is also sometimes used. Students of advanced professional programs are known by their field (business student, law student, medical student). Some universities also have a residential college system, the details of which may vary but generally involve common living and dining spaces as well as college-organised activities. Nonetheless, when it comes to the level of education, AmE generally uses the word college (e.g., going to college) whereas BrE generally uses the word university (e.g., going to university) regardless of the institution's official designation/status in both countries. In the context of higher education, the word school is used slightly differently in BrE and AmE. In BrE, except for the University of London, the word school is used to refer to an academic department in a university. In AmE, the word school is used to refer to a collection of related academic departments and is headed by a dean. When it refers to a division of a university, school is practically synonymous to a college. "Professor" has different meanings in BrE and AmE. In BrE it is the highest academic rank, followed by reader, senior lecturer and lecturer. In AmE "professor" refers to academic staff of all ranks, with (full) professor (largely equivalent to the UK meaning) followed by associate professor and assistant professor. "Tuition" has traditionally had separate meaning in each variation. In BrE it is the educational content transferred from teacher to student at a university. In AmE it is the money (the fees) paid to receive that education (BrE: tuition fees). General terms In both the US and the UK, a student takes an exam, but in BrE a student can also be said to sit an exam. When preparing for an exam students revise (BrE)/review (AmE) what they have studied; the BrE idiom to revise for has the equivalent to review for in AmE. Examinations are supervised by invigilators in the UK and proctors (or (exam) supervisors) in the US (a proctor in the UK is an official responsible for student discipline at the University of Oxford or Cambridge). In the UK a teacher first sets and then administers exam, while in the US, a teacher first writes, makes, prepares, etc. and then gives an exam. With the same basic meaning of the latter idea but with a more formal or official connotation, a teacher in the US may also administer or proctor an exam. BrE: AmE: In BrE, students are awarded marks as credit for requirements (e.g., tests, projects) while in AmE, students are awarded points or "grades" for the same. Similarly, in BrE, a candidate's work is being marked, while in AmE it is said to be graded to determine what mark or grade is given. There is additionally a difference between American and British usage in the word school. In British usage "school" by itself refers only to primary (elementary) and secondary (high) schools and to sixth forms attached to secondary schools—if one "goes to school", this type of institution is implied. By contrast an American student at a university may be "in/at school", "coming/going to school", etc. US and British law students and medical students both commonly speak in terms of going to "law school" and "med[ical] school", respectively. However, the word school is used in BrE in the context of higher education to describe a division grouping together several related subjects within a university, for example a "School of European Languages" containing departments for each language and also in the term "art school". It is also the name of some of the constituent colleges of the University of London, for example, School of Oriental and African Studies, London School of Economics. Among high-school and college students in the United States, the words freshman (or the gender-neutral terms first year or sometimes freshie), sophomore, junior and senior refer to the first, second, third, and fourth years respectively. It is important that the context of either high school or college first be established or else it must be stated directly (that is, She is a high-school freshman. He is a college junior.). Many institutes in both countries also use the term first-year as a gender-neutral replacement for freshman, although in the US this is recent usage, formerly referring only to those in the first year as a graduate student. One exception is the University of Virginia; since its founding in 1819 the terms "first-year", "second-year", "third-year", and "fourth-year" have been used to describe undergraduate university students. At the United States service academies, at least those operated by the federal government directly, a different terminology is used, namely "fourth class", "third class", "second class" and "first class" (the order of numbering being the reverse of the number of years in attendance). In the UK first-year university students are sometimes called freshers early in the academic year; however, there are no specific names for those in other years nor for school pupils. Graduate and professional students in the United States are known by their year of study, such as a "second-year medical student" or a "fifth-year doctoral candidate." Law students are often referred to as "1L", "2L", or "3L" rather than "nth-year law students"; similarly, medical students are frequently referred to as "M1", "M2", "M3", or "M4". While anyone in the US who finishes studying at any educational institution by passing relevant examinations is said to graduate and to be a graduate, in the UK only degree and above level students can graduate. Student itself has a wider meaning in AmE, meaning any person of any age studying any subject at any level (including those not doing so at an educational institution, such as a "piano student" taking private lessons in a home), whereas in BrE it tends to be used for people studying at a post-secondary educational institution and the term pupil is more widely used for a young person at primary or secondary school, though the use of "student" for secondary school pupils in the UK is increasingly used, particularly for "sixth form" (years 12 and 13). The names of individual institutions can be confusing. There are several high schools with the word "university" in their names in the United States that are not affiliated with any post-secondary institutions and cannot grant degrees, and there is one public high school, Central High School of Philadelphia, that does grant bachelor's degrees to the top ten per cent of graduating seniors. British secondary schools occasionally have the word "college" in their names. When it comes to the admissions process, applicants are usually asked to solicit letters of reference or reference forms from referees in BrE. In AmE, these are called letters of recommendation or recommendation forms. Consequently, the writers of these letters are known as referees and recommenders, respectively by country. In AmE, the word referee is nearly always understood to refer to an umpire of a sporting match. In the context of education, for AmE, the word staff mainly refers to school personnel who are neither administrators nor have teaching loads or academic responsibilities; personnel who have academic responsibilities are referred to as members of their institution's faculty. In BrE, the word staff refers to both academic and non-academic school personnel. As mentioned previously, the term faculty in BrE refers more to a collection of related academic departments. Government and politics In the UK, political candidates stand for election, while in the US, they run for office. There is virtually no crossover between BrE and AmE in the use of these terms. Also, the document which contains a party's positions/principles is referred to as a party platform in AmE, whereas it is commonly known as a party manifesto in BrE. (In AmE, using the term manifesto may connote that the party is an extremist or radical organisation.) The term general election is used slightly differently in British and American English. In BrE, it refers exclusively to a nationwide parliamentary election and is differentiated from local elections (mayoral and council) and by-elections; whereas in AmE, it refers to a final election for any government position in the US, where the term is differentiated from the term primary (an election that determines a party's candidate for the position in question). Additionally, a by-election in BrE is called a special election in AmE. In AmE, the term swing state, swing county, swing district is used to denote a jurisdiction/constituency where results are expected to be close but crucial to the overall outcome of the general election. In BrE, the term marginal constituency is more often used for the same and swing is more commonly used to refer to how much one party has gained (or lost) an advantage over another compared to the previous election. In the UK, the term government only refers to what is commonly known in America as the executive branch or the particular administration. A local government in the UK is generically referred to as the "council," whereas in the United States, a local government will be generically referred to as the "City" (or county, village, etc., depending on what kind of entity the government serves). Business and finance In financial statements, what is referred to in AmE as revenue or sales is known in BrE as turnover. In AmE, having "high turnover" in a business context would generally carry negative implications, though the precise meaning would differ by industry. A bankrupt firm goes into administration or liquidation in BrE; in AmE it goes bankrupt, or files for Chapter 7 (liquidation) or Chapter 11 (reorganisation). An insolvent individual or partnership goes bankrupt in both BrE and AmE. If a finance company takes possession of a mortgaged property from a debtor, it is called foreclosure in AmE and repossession in BrE. In some limited scenarios, repossession may be used in AmE, but it is much less commonly compared to foreclosure. One common exception in AmE is for automobiles, which are always said to be repossessed. Indeed, an agent who collects these cars for the bank is colloquially known in AmE as a repo man. Employment and recruitment In BrE, the term curriculum vitae (commonly abbreviated to CV) is used to describe the document prepared by applicants containing their credentials required for a job. In AmE, the term résumé is more commonly used, with CV primarily used in academic or research contexts, and is usually more comprehensive than a résumé. Insurance AmE distinguishes between coverage as a noun and cover as a verb; an American seeks to buy enough insurance coverage in order to adequately cover a particular risk. BrE uses the word "cover" for both the noun and verb forms. Transport AmE speakers refer to transportation and BrE speakers to transport. (Transportation in the UK has traditionally meant the punishment of criminals by deporting them to an overseas penal colony.) In AmE, the word transport is usually used only as a verb, seldom as a noun or adjective except in reference to certain specialised objects, such as a tape transport or a military transport (e.g., a troop transport, a kind of vehicle, not an act of transporting). Road transport Differences in terminology are especially obvious in the context of roads. The British term dual carriageway, in American parlance, would be divided highway or perhaps, simply highway. The central reservation on a motorway or dual carriageway in the UK would be the median or center divide on a freeway, expressway, highway or parkway in the US. The one-way lanes that make it possible to enter and leave such roads at an intermediate point without disrupting the flow of traffic are known as slip roads in the UK but in the US, they are typically known as ramps and both further distinguish between on-ramps or on-slips (for entering onto a highway/carriageway) and off-ramps or exit-slips (for leaving a highway/carriageway). When American engineers speak of slip roads, they are referring to a street that runs alongside the main road (separated by a berm) to allow off-the-highway access to the premises that are there; however, the term frontage road is more commonly used, as this term is the equivalent of service road in the UK. However, it is not uncommon for an American to use service road as well instead of frontage road. In the UK, the term outside lane refers to the higher-speed overtaking lane (passing lane in the US) closest to the centre of the road, while inside lane refers to the lane closer to the edge of the road. In the US, outside lane is used only in the context of a turn, in which case it depends in which direction the road is turning (i.e., if the road bends right, the left lane is the "outside lane", but if the road bends left, it is the right lane). Both also refer to slow and fast lanes (even though all actual traffic speeds may be at or around the legal speed limit). In the UK drink driving refers to driving after having consumed alcoholic beverages, while in the US, the term is drunk driving. The legal term in the US is driving while intoxicated (DWI) or driving under the influence (of alcohol) (DUI). The equivalent legal phrase in the UK is drunk in charge of a motor vehicle (DIC) or more commonly driving with excess alcohol. In the UK, a hire car is the US equivalent of a rental car. The term "hired car" can be especially misleading for those in the US, where the term "hire" is generally only applied to the employment of people and the term "rent" is applied to the temporary custody of goods. To an American, "hired car" would imply that the car has been brought into the employment of an organisation as if it were a person, which would sound nonsensical. In the UK, a saloon is a vehicle that is equivalent to the American sedan. This is particularly confusing to Americans, because in the US the term saloon is used in only one context: describing an old bar (UK pub) in the American West (a Western saloon). Coupé is used by both to refer to a two-door car, but is usually pronounced with two syllables in the UK (coo-pay) and one syllable in the US (coop). In the UK, van may refer to a lorry (UK) of any size, whereas in the US, van is only understood to be a very small, boxy truck (US) (such as a moving van) or a long passenger automobile with several rows of seats (such as a minivan). A large, long vehicle used for cargo transport would nearly always be called a truck in the US, though alternate terms such as eighteen-wheeler may be occasionally heard (regardless of the actual number of tires on the truck). In the UK, a silencer is the equivalent to the US muffler. In the US, the word silencer has only one meaning: an attachment on the barrel of a gun designed to stop the distinctive crack of a gunshot. Specific auto parts and transport terms have different names in the two dialects, for example: Rail transport There are also differences in terminology in the context of rail transport. The best known is railway in the UK and railroad in North America, but there are several others. A railway station in the UK is a railroad station in the US, while train station is used in both; trains have drivers (often called engine drivers) in the UK, while in America trains are driven by engineers; trains have guards in the UK and conductors in the US, though the latter is also common in the UK; a place where two tracks meet is called a set of points in the UK and a switch in the US; and a place where a road crosses a railway line at ground level is called a level crossing in the UK and a grade crossing or railroad crossing in America. In the UK, the term sleeper is used for the devices that bear the weight of the rails and are known as ties or crossties in the United States. In a rail context, sleeper (more often, sleeper car) would be understood in the US as a rail car with sleeping quarters for its passengers. The British term platform in the sense "The train is at Platform 1" would be known in the US by the term track, and used in the phrase "The train is on Track 1". The British term brake van or guard's van is a caboose in the US. The American English phrase "All aboard" when boarding a train is rarely used in the UK, and when the train reaches its final stop, in the UK the phrase used by rail personnel is "All change" while in the US it is "All out", though such announcements are uncommon in both regions. For sub-surface rail networks, while underground is commonly used in the UK, only the London Underground actually carries this name: the UK's only other such system, the smaller Glasgow Subway, was in fact the first to be called "subway". Nevertheless, both subway and metro are now more common in the US, varying by city: in Washington D.C., for example, metro is used, while in New York City subway is preferred. Another variation is the T in Boston. Television Traditionally, a show on British television would have referred to a light-entertainment program (BrE programme) with one or more performers and a participative audience, whereas in American television, the term is used for any type of program. British English traditionally referred to other types of program by their type, such as drama, serial etc., but the term show has now taken on the generalised American meaning. In American television the episodes of a program first broadcast in a particular year constitute a season, while the entire run of the program—which may span several seasons—is called a series. In British television, on the other hand, the word series may apply to the episodes of a program in one particular year, for example, "The 1998 series of Grange Hill, as well as to the entire run. However, the entire run may occasionally be referred to as a "show". The term telecast, meaning television broadcast and uncommon even in the US, is not used in British English. A television program would be broadcast, aired or shown in both the UK and US. Telecommunications A long-distance call is a "trunk call" in British English, but is a "toll call" in American English, though neither term is well known among younger Americans. The distinction is a result of historical differences in the way local service was billed; the Bell System traditionally flat-rated local calls in all but a few markets, subsidising local service by charging higher rates, or tolls, for intercity calls, allowing local calls to appear to be free. British Telecom (and the British Post Office before it) charged for all calls, local and long distance, so labelling one class of call as "toll" would have been meaningless. Similarly, a toll-free number in America is a freephone number in the UK. The term "freefone" is a BT trademark. Rivers In British English, the name of a river is usually placed after the word (River Thames) however there are a small number of exceptions such as Wick River. In American English, the name is placed before the word (Hudson River). Grammar Subject-verb agreement In American English (AmE), collective nouns are almost always singular in construction: the committee was unable to agree. However, when a speaker wishes to emphasize that the individuals are acting separately, a plural pronoun may be employed with a singular or plural verb: the team takes their seats, rather than the team takes its seats. Such a sentence would most likely be recast as the team members take their seats. Despite exceptions such as usage in The New York Times, the names of sports teams are usually treated as plurals even if the form of the name is singular. In British English (BrE), collective nouns can take either singular (formal agreement) or plural (notional agreement) verb forms, according to whether the emphasis is on the body as a whole or on the individual members respectively; compare a committee was appointed with the committee were unable to agree. The term the Government always takes a plural verb in British civil service convention, perhaps to emphasise the principle of cabinet collective responsibility. Compare also the following lines of Elvis Costello's song "Oliver's Army": Oliver's Army is here to stay / Oliver's Army are on their way . Some of these nouns, for example staff, actually combine with plural verbs most of the time. The difference occurs for all nouns of multitude, both general terms such as team and company and proper nouns (for example where a place name is used to refer to a sports team). For instance, Proper nouns that are plural in form take a plural verb in both AmE and BrE; for example, The Beatles are a well-known band; The Diamondbacks are the champions, with one major exception: in American English, the United States is almost universally used with a singular verb. Although the construction the United States are was more common early in the history of the country, as the singular federal government exercised more authority and a singular national identity developed (especially following the American Civil War), it became standard to treat the United States as a singular noun. Style Use of that and which in restrictive and non-restrictive relative clauses Generally, a non-restrictive relative clause (also called non-defining or supplementary) is one containing information that is supplementary, i.e. does not change the meaning of the rest of the sentence, while a restrictive relative clause (also called defining or integrated) contains information essential to the meaning of the sentence, effectively limiting the modified noun phrase to a subset that is defined by the relative clause. An example of a restrictive clause is "The dog that bit the man was brown." An example of a non-restrictive clause is "The dog, which bit the man, was brown." In the former, "that bit the man" identifies which dog the statement is about. In the latter, "which bit the man" provides supplementary information about a known dog. A non-restrictive relative clause is typically set off by commas, whereas a restrictive relative clause is not, but this is not a rule that is universally observed. In speech, this is also reflected in the intonation. Writers commonly use which to introduce a non-restrictive clause, and that to introduce a restrictive clause. That is rarely used to introduce a non-restrictive relative clause in prose. Which and that are both commonly used to introduce a restrictive clause; a study in 1977 reported that about 75 per cent of occurrences of which were in restrictive clauses. H. W. Fowler, in A Dictionary of Modern English Usage of 1926, followed others in suggesting that it would be preferable to use which as the non-restrictive (what he calls "non-defining") pronoun and that as the restrictive (what he calls defining) pronoun, but he also stated that this rule was observed neither by most writers nor by the best writers. He implied that his suggested usage was more common in American English. Fowler notes that his recommended usage presents problems, in particular that that must be the first word of the clause, which means, for instance, that which cannot be replaced by that when it immediately follows a preposition (e.g. "the basic unit from which matter is constructed") – though this would not prevent a stranded preposition (e.g. "the basic unit that matter is constructed from). Style guides by American prescriptivists, such as Bryan Garner, typically insist, for stylistic reasons, that that be used for restrictive relative clauses and which be used for non-restrictive clauses, referring to the use of which in restrictive clauses as a "mistake". According to the 2015 edition of Fowler's Dictionary of Modern English Usage, "In AmE which is 'not generally used in restrictive clauses, and that fact is then interpreted as the absolute rule that only that may introduce a restrictive clause', whereas in BrE 'either that or which may be used in restrictive clauses', but many British people 'believe that that is obligatory. Subjunctive The subjunctive mood is more common in colloquial American English than in colloquial British English. Writing Spelling Before the early 18th century English spelling was not standardised. Different standards became noticeable after the publishing of influential dictionaries. For the most part current BrE spellings follow those of Samuel Johnson's Dictionary of the English Language (1755), while AmE spellings follow those of Noah Webster's An American Dictionary of the English Language (1828). In the United Kingdom, the influences of those who preferred the French spellings of certain words proved decisive. In many cases AmE spelling deviated from mainstream British spelling; on the other hand it has also often retained older forms. Many of the now characteristic AmE spellings were popularised, although often not created, by Noah Webster. Webster chose already-existing alternative spellings "on such grounds as simplicity, analogy or etymology". Webster did attempt to introduce some reformed spellings, as did the Simplified Spelling Board in the early 20th century, but most were not adopted. Later spelling changes in the UK had little effect on present-day US spelling, and vice versa. Punctuation Full stops and periods in abbreviations There have been some trends of transatlantic difference in use of periods in some abbreviations. These are discussed at Abbreviation § Periods (full stops) and spaces. Unit symbols such as kg and Hz are never punctuated. Parentheses/brackets In British English, "( )" marks are often referred to as brackets, whereas "[ ]" are called square brackets and "{ }" are called curly brackets. In formal British English and in American English "( )" marks are parentheses (singular: parenthesis), "[ ]" are called brackets or square brackets, and "{ }" can be called either curly brackets or braces. Despite the different names, these marks are used in the same way in both varieties. Quoting British and American English differ in the preferred quotation mark style, including the placement of commas and periods. In American English, " and ' are called quotation marks, whereas in British English, " and ' are referred to as either inverted commas or speech marks. Additionally, in American English direct speech typically uses the double quote mark ( " ), whereas in British English it is common to use the inverted comma ( ' ). Commas in headlines American newspapers commonly use a comma as a shorthand for "and" in headlines. For example, The Washington Post had the headline "A TRUE CONSERVATIVE: For McCain, Bush Has Both Praise, Advice." Numerical expressions There are many differences in the writing and speaking of English numerals, most of which are matters of style, with the notable exception of different definitions for billion. The two countries have different conventions for floor numbering. The UK uses a mixture of the metric system and Imperial units, where in the US, United States customary units are dominant in everyday life with a few fields using the metric system. Monetary amounts Monetary amounts in the range of one to two major currency units are often spoken differently. In AmE one may say a dollar fifty or a pound eighty, whereas in BrE these amounts would be expressed one dollar fifty and one pound eighty. For amounts over a dollar an American will generally either drop denominations or give both dollars and cents, as in two-twenty or two dollars and twenty cents for $2.20. An American would not say two dollars twenty. On the other hand, in BrE, two-twenty or two pounds twenty would be most common. It is more common to hear a British-English speaker say one thousand two hundred dollars than a thousand and two hundred dollars, although the latter construct is common in AmE. In British English, the "and" comes after the hundreds (one thousand, two hundred and thirty dollars). The term twelve hundred dollars, popular in AmE, is frequently used in BrE but only for exact multiples of 100 up to 1,900. Speakers of BrE very rarely hear amounts over 1,900 expressed in hundreds, for example, twenty-three hundred. In AmE it would not be unusual to refer to a high, uneven figure such as 2,307 as twenty-three hundred and seven. In BrE, particularly in television or radio advertisements, integers can be pronounced individually in the expression of amounts. For example, on sale for £399 might be expressed on sale for three nine nine, though the full three hundred and ninety-nine pounds is at least as common. An American advertiser would almost always say on sale for three ninety-nine, with context distinguishing $399 from $3.99. In British English the latter pronunciation implies a value in pounds and pence, so three ninety-nine would be understood as £3.99. In spoken BrE the word pound is sometimes colloquially used for the plural as well. For example, three pound forty and twenty pound a week are both heard in British English. Some other currencies do not change in the plural; yen and rand being examples. This is in addition to normal adjectival use, as in a twenty-pound-a-week pay-rise (US raise). The euro most often takes a regular plural -s in practice despite the EU dictum that it should remain invariable in formal contexts; the invariable usage is more common in Ireland, where it is the official currency. In BrE the use of p instead of pence is common in spoken usage. Each of the following has equal legitimacy: 3 pounds 12 p; 3 pounds and 12 p; 3 pounds 12 pence; 3 pounds and 12 pence; as well as just 8 p or 8 pence. In everyday usage the amount is simply read as figures (£3.50 = three pounds fifty) as in AmE. AmE uses words such as nickel, dime, and quarter for small coins. In BrE the usual usage is a 10-pence piece or a 10p piece or simply a 10p, for any coin below £1, pound coin and two-pound coin. BrE did have specific words for a number of coins before decimalisation. Formal coin names such as half crown (2/6) and florin (2/-), as well as slang or familiar names such as bob (1/-) and tanner (6d) for pre-decimalisation coins are still familiar to older BrE speakers but they are not used for modern coins. In older terms like two-bob bit (2/-) and thrupenny bit (3d), the word bit had common usage before decimalisation similar to that of piece today. In order to make explicit the amount in words on a check (BrE cheque), Americans write three and (using this solidus construction or with a horizontal division line): they do not need to write the word dollars as it is usually already printed on the check. On a cheque UK residents would write three pounds and 24 pence, three pounds ‒ 24, or three pounds ‒ 24p since the currency unit is not preprinted. To make unauthorised amendment difficult, it is useful to have an expression terminator even when a whole number of dollars/pounds is in use: thus, Americans would write three and or three and on a three-dollar check (so that it cannot easily be changed to, for example, three million), and UK residents would write three pounds only. Dates Dates are usually written differently in the short (numerical) form. Christmas Day 2000, for example, is 25/12/00 or 25.12.00 in the UK and 12/25/00 in the US, although the formats 25/12/2000, 25.12.2000, and 12/25/2000 now have more currency than they had before Y2K. Occasionally other formats are encountered, such as the ISO 8601 2000-12-25, popular among programmers, scientists and others seeking to avoid ambiguity, and to make alphanumerical order coincide with chronological order. The difference in short-form date order can lead to misunderstanding, especially when using software or equipment that uses the foreign format. For example, 06/04/05 could mean either June 4, 2005 (if read as US format), 6 April 2005 (if seen as in UK format) or even 5 April 2006 if taken to be an older ISO 8601-style format where 2-digit years were allowed. When using the name of the month rather than the number to write a date in the UK, the recent standard style is for the day to precede the month, e. g., 21 April. Month preceding date is almost invariably the style in the US, and was common in the UK until the late twentieth century. British usage normally changes the day from an integer to an ordinal, i.e., 21st instead of 21. In speech, "of" and "the" are used in the UK, as in "the 21st of April". In written language, the words "the" and "of" may be and are usually dropped, i.e., 21st April. The US would say this as "April 21st", and this form is still common in the UK. One of the few exceptions in American English is saying "the Fourth of July" as a shorthand for the United States Independence Day. In the US military the British forms are used, but the day is read cardinally, while among some speakers of New England and Southern American English varieties and who come from those regions but live elsewhere, those forms are common, even in formal contexts. Phrases such as the following are common in the UK but are generally unknown in the US: "A week today", "a week tomorrow", "a week (on) Tuesday" and "Tuesday week"; these all refer to a day which is more than a week into the future. "A fortnight Friday" and "Friday fortnight" refer to a day two weeks after the coming Friday). "A week on Tuesday" and "a fortnight on Friday" could refer either to a day in the past ("it's a week on Tuesday, you need to get another one") or in the future ("see you a week on Tuesday"), depending on context. In the US the standard construction is "a week from today", "a week from tomorrow", etc. BrE speakers may also say "Thursday last" or "Thursday gone" where AmE would prefer "last Thursday". "I'll see you (on) Thursday coming" or "let's meet this coming Thursday" in BrE refer to a meeting later this week, while "not until Thursday next" would refer to next week. In BrE there is also common use of the term 'Thursday after next' or 'week after next' meaning 2 weeks in the future and 'Thursday before last' and 'week before last' meaning 2 weeks in the past, but not when referring to times more than 2 weeks been or gone or when using the terms tomorrow today or yesterday then in BrE you would say '5 weeks on Tuesday' or '2 weeks yesterday'. Time The 24-hour clock (18:00, 18.00 or 1800) is considered normal in the UK and Europe in many applications including air, rail and bus timetables; it is largely unused in the US outside military, police, aviation and medical applications. As a result, many Americans refer to the 24-hour clock as military time. Some British English style guides recommend the full stop (.) when telling time, compared to American English which uses colons (:) (i.e., 11:15 PM/pm/p.m. or 23:15 for AmE and 11.15 pm or 23.15 for BrE). Usually in the military (and sometimes in the police, aviation and medical) applications on both sides of the Atlantic 0800 and 1800 are read as (oh/zero) eight hundred and eighteen hundred hours respectively. Even in the UK, hundred follows twenty, twenty-one, twenty-two and twenty-three when reading 2000, 2100, 2200 and 2300 according to those applications. Fifteen minutes after the hour is called quarter past in British usage and a quarter after or, less commonly, a quarter past in American usage. Fifteen minutes before the hour is usually called quarter to in British usage and a quarter of, a quarter to or a quarter 'til in American usage; the form a quarter to is associated with parts of the Northern United States, while a quarter 'til or till is found chiefly in the Appalachian region. Thirty minutes after the hour is commonly called half past in both BrE and AmE; half after used to be more common in the US. In informal British speech, the preposition is sometimes omitted, so that 5:30 may be referred to as half five; this construction is entirely foreign to US speakers, who would possibly interpret half five as 4:30 (halfway to 5:00) rather than 5:30. The AmE formations top of the hour and bottom of the hour are not used in BrE. Forms such as eleven forty are common in both varieties. To be simple and direct in telling time, no terms relating to fifteen or thirty minutes before/after the hour are used; rather the time is told exactly as for example nine fifteen, ten forty-five. Sports percentages In sports statistics, certain percentages such as those for winning or win–loss records and saves in field or ice hockey and association football are almost always expressed as a decimal proportion to three places in AmE and are usually read aloud as if they are whole numbers, e.g. (0).500 or five hundred, hence the phrase "games/matches over five hundred", whereas in BrE they are also expressed but as true percentages instead, after multiplying the decimal by 100%, that is, 50% or "fifty per cent" and "games/matches over 50% or 50 per cent". However, "games/matches over 50% or 50 percent" is also found in AmE, albeit sporadically, e.g., hitting percentages in volleyball. The American practice of expressing so-called percentages in sports statistics as decimals originated with baseball's batting averages, developed by English-born statistician and historian Henry Chadwick. See also American and British English grammatical differences American and British English pronunciation differences American and British English spelling differences British and American keyboards List of dialects of the English language Lists of words having different meanings in American and British English Explanatory notes Citations General and cited sources Algeo, John (2006). British or American English?. Cambridge: Cambridge University Press. . Hargraves, Orin (2003). Mighty Fine Words and Smashing Expressions. Oxford: Oxford University Press. . McArthur, Tom (2002). The Oxford Guide to World English. Oxford: Oxford University Press. . Murphy, Lynne (2018). The Prodigal Tongue: The Love-Hate Relationship Between British and American English. London. Oneworld Publications. . Peters, Pam (2004). The Cambridge Guide to English Usage. Cambridge: Cambridge University Press. . Trudgill, Peter and Jean Hannah (2002). International English: A Guide to the Varieties of Standard English, 4th ed. London: Arnold. . Further reading External links Word substitution list, by the Ubuntu English (United Kingdom) Translators team Linguistics Issues List of American, Canadian and British spelling differences Map of US English dialects The Septic's Companion: A British Slang Dictionary British English vs. American English Slang Compared British English-American English Vocabulary Quiz Language comparison between countries Comparison of forms of English Internationalization and localization United Kingdom–United States relations

2014

https://en.wikipedia.org/wiki/Atomic%20semantics

Atomic semantics

Atomic semantics is a type of guarantee provided by a data register shared by several processors in a parallel machine or in a network of computers working together. Atomic semantics are very strong. An atomic register provides strong guarantees even when there is concurrency and failures. A read/write register R stores a value and is accessed by two basic operations: read and write(v). A read returns the value stored in R and write(v) changes the value stored in R to v. A register is called atomic if it satisfies the two following properties: 1) Each invocation op of a read or write operation: •Must appear as if it were executed at a single point τ(op) in time. •τ (op) works as follow: τb(op) ≤ τ (op) ≤ τe(op): where τb(op) and τe(op) indicate the time when the operation op begins and ends. •If op1 ≠ op2, then τ (op1)≠τ (op2) 2) Each read operation returns the value written by the last write operation before the read, in the sequence where all operations are ordered by their τ values. Atomic/Linearizable register: Termination: when a node is correct, sooner or later each read and write operation will complete. Safety Property (Linearization points for read and write and failed operations): Read operation:It appears as if happened at all nodes at some times between the invocation and response time. Write operation: Similar to read operation, it appears as if happened at all nodes at some times between the invocation and response time. Failed operation(The atomic term comes from this notion):It appears as if it is completed at every single node or it never happened at any node. Example : We know that an atomic register is one that is linearizable to a sequential safe register. The following picture shows where we should put the linearization point for each operation: An atomic register could be defined for a variable with a single writer but multi- readers (SWMR), single-writer/single-reader (SWSR), or multi-writer/multi-reader (MWMR). Here is an example of a multi-reader multi-writer atomic register which is accessed by three processes (P1, P2, P3). Note that R. read() → v means that the corresponding read operation returns v, which is the value of the register. Therefore, the following execution of the register R could satisfies the definition of the atomic registers: R.write(1), R.read()→1, R.write(3), R.write(2), R.read()→2, R.read()→2. See also Regular semantics Safe semantics References Atomic semantics are defined formally in Lamport's "On Interprocess Communication" Distributed Computing 1, 2 (1986), 77-101. (Also appeared as SRC Research Report 8). Concurrency control

2018

https://en.wikipedia.org/wiki/A.%20J.%20Ayer

A. J. Ayer

Sir Alfred Jules "Freddie" Ayer ( ; 29 October 1910 – 27 June 1989), usually cited as A. J. Ayer, was an English philosopher known for his promotion of logical positivism, particularly in his books Language, Truth, and Logic (1936) and The Problem of Knowledge (1956). Ayer was educated at Eton College and the University of Oxford, after which he studied the philosophy of logical positivism at the University of Vienna. From 1933 to 1940 he lectured on philosophy at Christ Church, Oxford. During the Second World War Ayer was a Special Operations Executive and MI6 agent. Ayer was Grote Professor of the Philosophy of Mind and Logic at University College London from 1946 until 1959, after which he returned to Oxford to become Wykeham Professor of Logic at New College. He was president of the Aristotelian Society from 1951 to 1952 and knighted in 1970. He was known for his advocacy of humanism, and was the second president of the British Humanist Association (now known as Humanists UK). Ayer was president of the Homosexual Law Reform Society for a time; he remarked, "as a notorious heterosexual I could never be accused of feathering my own nest." Life Ayer was born in St John's Wood, in north west London, to Jules Louis Cyprien Ayer and Reine (née Citroen), wealthy parents from continental Europe. His mother was from the Dutch-Jewish family that founded the Citroën car company in France; his father was a Swiss Calvinist financier who worked for the Rothschild family, including for their bank and as secretary to Alfred Rothschild. Ayer was educated at Ascham St Vincent's School, a former boarding preparatory school for boys in the seaside town of Eastbourne in Sussex, where he started boarding at the relatively early age of seven for reasons to do with the First World War, and at Eton College, where he was a King's Scholar. At Eton Ayer first became known for his characteristic bravado and precocity. Though primarily interested in his intellectual pursuits, he was very keen on sports, particularly rugby, and reputedly played the Eton Wall Game very well. In the final examinations at Eton, Ayer came second in his year, and first in classics. In his final year, as a member of Eton's senior council, he unsuccessfully campaigned for the abolition of corporal punishment at the school. He won a classics scholarship to Christ Church, Oxford. He graduated with a BA with first-class honours. After graduating from Oxford, Ayer spent a year in Vienna, returned to England and published his first book, Language, Truth and Logic, in 1936. The first exposition in English of logical positivism as newly developed by the Vienna Circle, this made Ayer at age 26 the enfant terrible of British philosophy. As a newly famous intellectual, he played a prominent role in the Oxford by-election campaign of 1938. Ayer campaigned first for the Labour candidate Patrick Gordon Walker, and then for the joint Labour-Liberal "Independent Progressive" candidate Sandie Lindsay, who ran on an anti-appeasement platform against the Conservative candidate, Quintin Hogg, who ran as the appeasement candidate. The by-election, held on 27 October 1938, was quite close, with Hogg winning narrowly. In the Second World War, Ayer served as an officer in the Welsh Guards, chiefly in intelligence (Special Operations Executive (SOE) and MI6). He was commissioned second lieutenant into the Welsh Guards from Officer Cadet Training Unit on 21 September 1940. After the war, Ayer briefly returned to the University of Oxford where he became a fellow and Dean of Wadham College. He then taught philosophy at University College London from 1946 until 1959, when he also started to appear on radio and television. He was an extrovert and social mixer who liked dancing and attending clubs in London and New York. He was also obsessed with sport: he had played rugby for Eton, and was a noted cricketer and a keen supporter of Tottenham Hotspur football team, where he was for many years a season ticket holder. For an academic, Ayer was an unusually well-connected figure in his time, with close links to 'high society' and the establishment. Presiding over Oxford high-tables, he is often described as charming, but could also be intimidating. Ayer was married four times to three women. His first marriage was from 1932 to 1941, to (Grace Isabel) Renée, with whom he had a son—allegedly in fact the son of Ayer's friend and colleague Stuart Hampshire—and a daughter. Renée subsequently married Hampshire. In 1960, Ayer married Alberta Constance (Dee) Wells, with whom he had one son. That marriage was dissolved in 1983, and the same year, Ayer married Vanessa Salmon, the former wife of politician Nigel Lawson. She died in 1985, and in 1989 Ayer remarried Wells, who survived him. He also had a daughter with Hollywood columnist Sheilah Graham Westbrook. In 1950, Ayer attended the founding meeting of the Congress for Cultural Freedom in West Berlin, though he later said he went only because of the offer of a "free trip". He gave a speech on why John Stuart Mill's conceptions of liberty and freedom were still valid in the 20th century. Together with the historian Hugh Trevor-Roper, Ayer fought against Arthur Koestler and Franz Borkenau, arguing that they were far too dogmatic and extreme in their anti-communism, in fact proposing illiberal measures in the defense of liberty. Adding to the tension was the location in West Berlin, together with the fact that the Korean War began on 25 June 1950, the fourth day of the congress, giving a feeling that the world was on the brink of war. From 1959 to his retirement in 1978, Ayer held the Wykeham Chair, Professor of Logic at Oxford. He was knighted in 1970. After his retirement, Ayer taught or lectured several times in the United States, including as a visiting professor at Bard College in 1987. At a party that same year held by fashion designer Fernando Sanchez, Ayer confronted Mike Tyson, who was forcing himself upon the then little-known model Naomi Campbell. When Ayer demanded that Tyson stop, Tyson reportedly asked, "Do you know who the fuck I am? I'm the heavyweight champion of the world", to which Ayer replied, "And I am the former Wykeham Professor of Logic. We are both preeminent in our field. I suggest that we talk about this like rational men". Ayer and Tyson then began to talk, allowing Campbell to slip out. Ayer was also involved in politics, including anti-Vietnam War activism, supporting the Labour Party (and later the Social Democratic Party), chairing the Campaign Against Racial Discrimination in Sport, and serving as president of the Homosexual Law Reform Society. In 1988, a year before his death, Ayer wrote an article titled "What I saw when I was dead", describing an unusual near-death experience. Of the experience, he first said that it "slightly weakened my conviction that my genuine death ... will be the end of me, though I continue to hope that it will be." A few weeks later, he revised this, saying, "what I should have said is that my experiences have weakened, not my belief that there is no life after death, but my inflexible attitude towards that belief". Ayer died on 27 June 1989. From 1980 to 1989 he lived at 51 York Street, Marylebone, where a memorial plaque was unveiled on 19 November 1995. Philosophical ideas In Language, Truth and Logic (1936), Ayer presents the verification principle as the only valid basis for philosophy. Unless logical or empirical verification is possible, statements like "God exists" or "charity is good" are not true or untrue but meaningless, and may thus be excluded or ignored. Religious language in particular is unverifiable and as such literally nonsense. He also criticises C. A. Mace's opinion that metaphysics is a form of intellectual poetry. The stance that a belief in God denotes no verifiable hypothesis is sometimes referred to as igtheism (for example, by Paul Kurtz). In later years, Ayer reiterated that he did not believe in God and began to call himself an atheist. He followed in the footsteps of Bertrand Russell by debating religion with the Jesuit scholar Frederick Copleston. Ayer's version of emotivism divides "the ordinary system of ethics" into four classes: "Propositions that express definitions of ethical terms, or judgements about the legitimacy or possibility of certain definitions" "Propositions describing the phenomena of moral experience, and their causes" "Exhortations to moral virtue" "Actual ethical judgments" He focuses on propositions of the first class—moral judgments—saying that those of the second class belong to science, those of the third are mere commands, and those of the fourth (which are considered normative ethics as opposed to meta-ethics) are too concrete for ethical philosophy. Ayer argues that moral judgments cannot be translated into non-ethical, empirical terms and thus cannot be verified; in this he agrees with ethical intuitionists. But he differs from intuitionists by discarding appeals to intuition of non-empirical moral truths as "worthless" since the intuition of one person often contradicts that of another. Instead, Ayer concludes that ethical concepts are "mere pseudo-concepts": Between 1945 and 1947, together with Russell and George Orwell, Ayer contributed a series of articles to Polemic, a short-lived British "Magazine of Philosophy, Psychology, and Aesthetics" edited by the ex-Communist Humphrey Slater. Ayer was closely associated with the British humanist movement. He was an Honorary Associate of the Rationalist Press Association from 1947 until his death. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1963. In 1965, he became the first president of the Agnostics' Adoption Society and in the same year succeeded Julian Huxley as president of the British Humanist Association, a post he held until 1970. In 1968 he edited The Humanist Outlook, a collection of essays on the meaning of humanism. He was one of the signers of the Humanist Manifesto. Works Ayer is best known for popularising the verification principle, in particular through his presentation of it in Language, Truth, and Logic. The principle was at the time at the heart of the debates of the so-called Vienna Circle, which Ayer had visited as a young guest. Others, including the circle's leading light, Moritz Schlick, were already writing papers on the issue. Ayer's formulation was that a sentence can be meaningful only if it has verifiable empirical import; otherwise, it is either "analytical" if tautologous or "metaphysical" (i.e. meaningless, or "literally senseless"). He started to work on the book at the age of 23 and it was published when he was 26. Ayer's philosophical ideas were deeply influenced by those of the Vienna Circle and David Hume. His clear, vibrant and polemical exposition of them makes Language, Truth and Logic essential reading on the tenets of logical empiricism; the book is regarded as a classic of 20th-century analytic philosophy and is widely read in philosophy courses around the world. In it, Ayer also proposes that the distinction between a conscious man and an unconscious machine resolves itself into a distinction between "different types of perceptible behaviour", an argument that anticipates the Turing test published in 1950 to test a machine's capability to demonstrate intelligence. Ayer wrote two books on the philosopher Bertrand Russell, Russell and Moore: The Analytic Heritage (1971) and Russell (1972). He also wrote an introductory book on the philosophy of David Hume and a short biography of Voltaire. Ayer was a strong critic of the German philosopher Martin Heidegger. As a logical positivist, Ayer was in conflict with Heidegger's vast, overarching theories of existence. Ayer considered them completely unverifiable through empirical demonstration and logical analysis, and this sort of philosophy an unfortunate strain in modern thought. He considered Heidegger the worst example of such philosophy, which Ayer believed entirely useless. In Philosophy in the Twentieth Century, Ayer accuses Heidegger of "surprising ignorance" or "unscrupulous distortion" and "what can fairly be described as charlatanism." In 1972–73, Ayer gave the Gifford Lectures at the University of St Andrews, later published as The Central Questions of Philosophy. In the book's preface, he defends his selection to hold the lectureship on the basis that Lord Gifford wished to promote "natural theology, in the widest sense of that term", and that non-believers are allowed to give the lectures if they are "able reverent men, true thinkers, sincere lovers of and earnest inquirers after truth". He still believed in the viewpoint he shared with the logical positivists: that large parts of what was traditionally called philosophyincluding metaphysics, theology and aestheticswere not matters that could be judged true or false, and that it was thus meaningless to discuss them. In The Concept of a Person and Other Essays (1963), Ayer heavily criticized Wittgenstein's private language argument. Ayer's sense-data theory in Foundations of Empirical Knowledge was famously criticised by fellow Oxonian J. L. Austin in Sense and Sensibilia, a landmark 1950s work of ordinary language philosophy. Ayer responded in the essay "Has Austin Refuted the Sense-datum Theory?", which can be found in his Metaphysics and Common Sense (1969). Awards Ayer was awarded a knighthood as Knight Bachelor in the London Gazette on 1 January 1970. Selected publications 1936, Language, Truth, and Logic, London: Gollancz., 2nd ed., with new introduction (1946) 1936, "Causation and free will," The Aryan Path. 1940, The Foundations of Empirical Knowledge, London: Macmillan. 1954, Philosophical Essays, London: Macmillan. (Essays on freedom, phenomenalism, basic propositions, utilitarianism, other minds, the past, ontology.) 1957, "The conception of probability as a logical relation", in S. Korner, ed., Observation and Interpretation in the Philosophy of Physics, New York, N.Y.: Dover Publications. 1956, The Problem of Knowledge, London: Macmillan. 1957, "Logical Positivism - A Debate" (with F. C. Copleston) in: Edwards, Paul, Pap, Arthur (eds.), A Modern Introduction to Philosophy; readings from classical and contemporary sources 1963, The Concept of a Person and Other Essays, London: Macmillan. (Essays on truth, privacy and private languages, laws of nature, the concept of a person, probability.) 1967, "Has Austin Refuted the Sense-Datum Theory?" Synthese vol. XVIII, pp. 117–140. (Reprinted in Ayer 1969). 1968, The Origins of Pragmatism, London: Macmillan. 1969, Metaphysics and Common Sense, London: Macmillan. (Essays on knowledge, man as a subject for science, chance, philosophy and politics, existentialism, metaphysics, and a reply to Austin on sense-data theory [Ayer 1967].) 1971, Russell and Moore: The Analytical Heritage, London: Macmillan. 1972, Probability and Evidence, London: Macmillan. 1972, Russell, London: Fontana Modern Masters. 1973, The Central Questions of Philosophy, London: Weidenfeld. 1977, Part of My Life, London: Collins. 1979, "Replies", in G. F. Macdonald, ed., Perception and Identity: Essays Presented to A. J. Ayer, With His Replies, London: Macmillan; Ithaca, N.Y.: Cornell University Press. 1980, Hume, Oxford: Oxford University Press 1982, Philosophy in the Twentieth Century, London: Weidenfeld. 1984, Freedom and Morality and Other Essays, Oxford: Clarendon Press. 1984, More of My Life, London: Collins. 1986, Ludwig Wittgenstein, London: Penguin. 1986, Voltaire, New York: Random House. 1988, Thomas Paine, London: Secker & Warburg. 1990, The Meaning of Life and Other Essays, Weidenfeld & Nicolson. 1991, "A Defense of Empiricism" in: Griffiths, A. Phillips (ed.), A. J. Ayer: Memorial Essays (Royal Institute of Philosophy Supplements). Cambridge University Press. 1992, "Intellectual Autobiography" and Repiies in: Lewis Edwin Hahn (ed.), The Philosophy of A.J. Ayer (The Library of Living Philosophers Volume XXI), Open Court Publishing Co. *For more complete publication details see "The Philosophical Works of A. J. Ayer" (1979) and "Bibliography of the writings of A.J. Ayer" (1992). See also A priori knowledge List of British philosophers References Footnotes Works cited Ayer, A.J. (1989). "That undiscovered country", New Humanist, Vol. 104 (1), May, pp. 10–13. Rogers, Ben (1999). A.J. Ayer: A Life. New York: Grove Press. . (Chapter one and a review by Hilary Spurling, The New York Times, 24 December 2000.) Further reading Jim Holt, "Positive Thinking" (review of Karl Sigmund, Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science, Basic Books, 449 pp.), The New York Review of Books, vol. LXIV, no. 20 (21 December 2017), pp. 74–76. Ted Honderich, Ayer's Philosophy and its Greatness. Anthony Quinton, Alfred Jules Ayer. Proceedings of the British Academy, 94 (1996), pp. 255–282. Graham Macdonald, Alfred Jules Ayer, Stanford Encyclopedia of Philosophy, 7 May 2005. External links "Logical Positivism" (video) Men of Ideas interview with Bryan Magee (1978) "Frege, Russell, and Modern Logic" (video) The Great Philosophers interview with Bryan Magee (1987) Ayer's Elizabeth Rathbone Lecture on Philosophy & Politics Ayer entry in the Stanford Encyclopedia of Philosophy A.J. Ayer: Out of time by Alex Callinicos Appearance on Desert Island Discs - 3 August 1984 1910 births 1989 deaths 20th-century atheists 20th-century British non-fiction writers 20th-century British philosophers Academics of University College London Alumni of Christ Church, Oxford Analytic philosophers Aristotelian philosophers Atheism in the United Kingdom Atheist philosophers Bard College faculty British Army personnel of World War II British people of Dutch-Jewish descent British people of Swiss descent British secularists British Special Operations Executive personnel Critics of religions Empiricists English atheists English humanists English logicians English people of Dutch-Jewish descent English people of Swiss descent English philosophers Epistemologists Fellows of Christ Church, Oxford Fellows of the American Academy of Arts and Sciences Fellows of the British Academy Jewish atheists Jewish humanists Jewish philosophers Knights Bachelor Linguistic turn Logical positivism Logicians Ontologists People educated at Eton College People from St John's Wood Philosophers of culture Philosophers of education Philosophers of history Philosophers of language Philosophers of logic Philosophers of mind Philosophers of religion Philosophers of science Philosophers of technology Philosophy writers Political philosophers Presidents of the Aristotelian Society Social philosophers Vienna Circle Welsh Guards officers Wykeham Professors of Logic

2019

https://en.wikipedia.org/wiki/Andr%C3%A9%20Weil

André Weil

André Weil (; ; 6 May 1906 – 6 August 1998) was a French mathematician, known for his foundational work in number theory and algebraic geometry. He was one of the most influential mathematicians of the twentieth century. His influence is due both to his original contributions to a remarkably broad spectrum of mathematical theories, and to the mark he left on mathematical practice and style, through some of his own works as well as through the Bourbaki group, of which he was one of the principal founders. Life André Weil was born in Paris to agnostic Alsatian Jewish parents who fled the annexation of Alsace-Lorraine by the German Empire after the Franco-Prussian War in 1870–71. Simone Weil, who would later become a famous philosopher, was Weil's younger sister and only sibling. He studied in Paris, Rome and Göttingen and received his doctorate in 1928. While in Germany, Weil befriended Carl Ludwig Siegel. Starting in 1930, he spent two academic years at Aligarh Muslim University in India. Aside from mathematics, Weil held lifelong interests in classical Greek and Latin literature, in Hinduism and Sanskrit literature: he had taught himself Sanskrit in 1920. After teaching for one year at Aix-Marseille University, he taught for six years at University of Strasbourg. He married Éveline de Possel (née Éveline Gillet) in 1937. Weil was in Finland when World War II broke out; he had been traveling in Scandinavia since April 1939. His wife Éveline returned to France without him. Weil was arrested in Finland at the outbreak of the Winter War on suspicion of spying; however, accounts of his life having been in danger were shown to be exaggerated. Weil returned to France via Sweden and the United Kingdom, and was detained at Le Havre in January 1940. He was charged with failure to report for duty, and was imprisoned in Le Havre and then Rouen. It was in the military prison in Bonne-Nouvelle, a district of Rouen, from February to May, that Weil completed the work that made his reputation. He was tried on 3 May 1940. Sentenced to five years, he requested to be attached to a military unit instead, and was given the chance to join a regiment in Cherbourg. After the fall of France in June 1940, he met up with his family in Marseille, where he arrived by sea. He then went to Clermont-Ferrand, where he managed to join his wife Éveline, who had been living in German-occupied France. In January 1941, Weil and his family sailed from Marseille to New York. He spent the remainder of the war in the United States, where he was supported by the Rockefeller Foundation and the Guggenheim Foundation. For two years, he taught undergraduate mathematics at Lehigh University, where he was unappreciated, overworked and poorly paid, although he did not have to worry about being drafted, unlike his American students. He quit the job at Lehigh and moved to Brazil, where he taught at the Universidade de São Paulo from 1945 to 1947, working with Oscar Zariski. Weil and his wife had two daughters, Sylvie (born in 1942) and Nicolette (born in 1946). He then returned to the United States and taught at the University of Chicago from 1947 to 1958, before moving to the Institute for Advanced Study, where he would spend the remainder of his career. He was a Plenary Speaker at the ICM in 1950 in Cambridge, Massachusetts, in 1954 in Amsterdam, and in 1978 in Helsinki. Weil was elected Foreign Member of the Royal Society in 1966. In 1979, he shared the second Wolf Prize in Mathematics with Jean Leray. Work Weil made substantial contributions in a number of areas, the most important being his discovery of profound connections between algebraic geometry and number theory. This began in his doctoral work leading to the Mordell–Weil theorem (1928, and shortly applied in Siegel's theorem on integral points). Mordell's theorem had an ad hoc proof; Weil began the separation of the infinite descent argument into two types of structural approach, by means of height functions for sizing rational points, and by means of Galois cohomology, which would not be categorized as such for another two decades. Both aspects of Weil's work have steadily developed into substantial theories. Among his major accomplishments were the 1940s proof of the Riemann hypothesis for zeta-functions of curves over finite fields, and his subsequent laying of proper foundations for algebraic geometry to support that result (from 1942 to 1946, most intensively). The so-called Weil conjectures were hugely influential from around 1950; these statements were later proved by Bernard Dwork, Alexander Grothendieck, Michael Artin, and finally by Pierre Deligne, who completed the most difficult step in 1973. Weil introduced the adele ring in the late 1930s, following Claude Chevalley's lead with the ideles, and gave a proof of the Riemann–Roch theorem with them (a version appeared in his Basic Number Theory in 1967). His 'matrix divisor' (vector bundle avant la lettre) Riemann–Roch theorem from 1938 was a very early anticipation of later ideas such as moduli spaces of bundles. The Weil conjecture on Tamagawa numbers proved resistant for many years. Eventually the adelic approach became basic in automorphic representation theory. He picked up another credited Weil conjecture, around 1967, which later under pressure from Serge Lang (resp. of Serre) became known as the Taniyama–Shimura conjecture (resp. Taniyama–Weil conjecture) based on a roughly formulated question of Taniyama at the 1955 Nikkō conference. His attitude towards conjectures was that one should not dignify a guess as a conjecture lightly, and in the Taniyama case, the evidence was only there after extensive computational work carried out from the late 1960s. Other significant results were on Pontryagin duality and differential geometry. He introduced the concept of a uniform space in general topology, as a by-product of his collaboration with Nicolas Bourbaki (of which he was a Founding Father). His work on sheaf theory hardly appears in his published papers, but correspondence with Henri Cartan in the late 1940s, and reprinted in his collected papers, proved most influential. He also chose the symbol ∅, derived from the letter Ø in the Norwegian alphabet (which he alone among the Bourbaki group was familiar with), to represent the empty set. Weil also made a well-known contribution in Riemannian geometry in his very first paper in 1926, when he showed that the classical isoperimetric inequality holds on non-positively curved surfaces. This established the 2-dimensional case of what later became known as the Cartan–Hadamard conjecture. He discovered that the so-called Weil representation, previously introduced in quantum mechanics by Irving Segal and David Shale, gave a contemporary framework for understanding the classical theory of quadratic forms. This was also a beginning of a substantial development by others, connecting representation theory and theta functions. Weil was a member of both the National Academy of Sciences and the American Philosophical Society. As expositor Weil's ideas made an important contribution to the writings and seminars of Bourbaki, before and after World War II. He also wrote several books on the history of number theory. Beliefs Hindu thought had great influence on Weil. He was an agnostic, and he respected religions. Legacy Asteroid 289085 Andreweil, discovered by astronomers at the Saint-Sulpice Observatory in 2004, was named in his memory. The official was published by the Minor Planet Center on 14 February 2014 (). Books Mathematical works: Arithmétique et géométrie sur les variétés algébriques (1935) Sur les espaces à structure uniforme et sur la topologie générale (1937) L'intégration dans les groupes topologiques et ses applications (1940) Sur les courbes algébriques et les variétés qui s'en déduisent (1948) Variétés abéliennes et courbes algébriques (1948) Introduction à l'étude des variétés kählériennes (1958) Discontinuous subgroups of classical groups (1958) Chicago lecture notes Dirichlet Series and Automorphic Forms, Lezioni Fermiane (1971) Lecture Notes in Mathematics, vol. 189 Essais historiques sur la théorie des nombres (1975) Elliptic Functions According to Eisenstein and Kronecker (1976) Number Theory for Beginners (1979) with Maxwell Rosenlicht Adeles and Algebraic Groups (1982) Number Theory: An Approach Through History From Hammurapi to Legendre (1984) Collected papers: Œuvres Scientifiques, Collected Works, three volumes (1979) Autobiography: French: Souvenirs d'Apprentissage (1991) . Review in English by J. E. Cremona. English translation: The Apprenticeship of a Mathematician (1992), Review by Veeravalli S. Varadarajan; Review by Saunders Mac Lane Memoir by his daughter: At Home with André and Simone Weil by Sylvie Weil, translated by Benjamin Ivry; , Northwestern University Press, 2010. See also List of things named after André Weil Trench References External links André Weil, by A. Borel, Bull. AMS 46 (2009), 661–666. André Weil: memorial articles in the Notices of the AMS by Armand Borel, Pierre Cartier, Komaravolu Chandrasekharan, Shiing-Shen Chern, and Shokichi Iyanaga Image of Weil A 1940 Letter of André Weil on Analogy in Mathematics Artless innocents and ivory-tower sophisticates: Some personalities on the Indian mathematical scene – M. S. Raghunathan La vie et l'oeuvre d'André Weil, by J-P. Serre, L'Ens. Math. 45 (1999),5–16. Correspondance entre Henri Cartan et André Weil (1928–1991), par Michèle Audin, Doc. Math. 6, Soc. Math. France, 2011. 1906 births 1998 deaths 20th-century French mathematicians Jewish French scientists French historians of mathematics Jewish agnostics French agnostics French people of Jewish descent Institute for Advanced Study faculty Academic staff of Aligarh Muslim University Arithmetic geometers École Normale Supérieure alumni Nicolas Bourbaki Members of the French Academy of Sciences Kyoto laureates in Basic Sciences Wolf Prize in Mathematics laureates Aligarh Muslim University alumni Academic staff of the University of São Paulo Foreign Members of the Royal Society Foreign associates of the National Academy of Sciences Scientists from Paris Lycée Saint-Louis alumni 20th-century French historians Members of the American Philosophical Society French expatriates in Brazil French expatriates in the United States

2028

https://en.wikipedia.org/wiki/Ambient

Ambient

Ambient or Ambiance or Ambience may refer to: Arts and entertainment Ambiancé, an unreleased experimental film Ambient (novel), a novel by Jack Womack Music and sound Ambience (sound recording), also known as atmospheres or backgrounds Ambient music, a genre of music that puts an emphasis on tone and atmosphere Ambient (album), by Moby Ambience (album), by the Lambrettas Virgin Ambient series, a series of 24 albums released on the UK Virgin Records label between 1993 and 1997 Ambient 1–4, a set of four albums by Brian Eno, released by Obscure Records between 1978 and 1982 Stingray Ambiance, the channel "Ambiance" on the Singray music service Other Ambient (computation), a process calculus Ambient (desktop environment), a MUI-based desktop environment for MorphOS Mark Ambient (1860–1937), pen name of Harold Harley, English dramatist , a cruise ship Ambient Technologies, semiconductor company specialising in modem ICs, spun off from Cirrus Logic in 1999 and purchased by Intel in 2000 See also Ambient lighting (disambiguation)

2029

https://en.wikipedia.org/wiki/Anne%20Bront%C3%AB

Anne Brontë

Anne Brontë (, commonly ; 17 January 1820 – 28 May 1849) was an English novelist and poet, and the youngest member of the Brontë literary family. Anne Brontë was the daughter of Maria ( Branwell) and Patrick Brontë, a poor Irish clergyman in the Church of England. Anne lived most of her life with her family at the parish of Haworth on the Yorkshire moors. Otherwise, she attended a boarding school in Mirfield between 1836 and 1837, and between 1839 and 1845 lived elsewhere working as a governess. In 1846 she published a book of poems with her sisters and later two novels, initially under the pen name Acton Bell. Her first novel, Agnes Grey, was published in 1847 at the same time as Wuthering Heights by her sister Emily Brontë. Anne’s second novel, The Tenant of Wildfell Hall, was published in 1848. The Tenant of Wildfell Hall is often considered one of the first feminist novels. Anne died at 29, most likely of pulmonary tuberculosis. After her death, her sister Charlotte edited Agnes Grey to fix issues with its first edition, but prevented republication of The Tenant of Wildfell Hall. As a result, Anne is not as well known as her sisters. Nonetheless, both of her novels are considered classics of English literature. Family background Anne's father was Patrick Brontë (1777–1861). Patrick Brontë was born in a two-room cottage in Emdale, Loughbrickland, County Down, Ireland. He was the oldest of ten children born to Hugh Brunty and Eleanor McCrory, poor Irish peasant farmers. The family surname, mac Aedh Ó Proinntigh, was Anglicised as Prunty or Brunty. Struggling against poverty, Patrick learned to read and write, and from 1798 taught others. In 1802, at 25, he won a place to study theology at St. John's College, Cambridge. Here he changed his name, Brunty, to the more distinguished sounding Brontë. In 1807, he was ordained in the priesthood in the Church of England. He served as a curate in Essex and then in Wellington, Shropshire. In 1810, he published his first poem, Winter Evening Thoughts, in a local newspaper. In 1811, he published a collection of moral verse, Cottage Poems. Also in 1811, he became vicar of St. Peter's Church in Hartshead, Yorkshire. In 1812, he was appointed an examiner in Classics at Woodhouse Grove School, near Bradford. This was a Wesleyan academy where, at 35, he met his future wife, the headmaster's niece, Maria Branwell. Maria Branwell (1783–1821), Anne's mother, was the daughter of Anne Carne, the daughter of a silversmith, and Thomas Branwell, a successful and property-owning grocer and tea merchant in Penzance. Maria was the eleventh of twelve children and enjoyed the benefits of a prosperous family in a small town. After the death of her parents, Maria went to help her aunt with housekeeping functions at the school. Maria was intelligent and well read, and her strong Methodist faith attracted Patrick Brontë, whose own leanings were similar. Within three months, on 29 December 1812, though from considerably different backgrounds, Patrick Brontë and Maria Branwell were married. Their first child, Maria (1814–1825), was born after they moved to Hartshead. In 1815, Patrick was appointed curate of the chapel in Market Street Thornton, near Bradford. A second daughter, Elizabeth (1815–1825), was born shortly after. Four more children followed: Charlotte (1816–1855), Patrick Branwell (1817–1848), Emily (1818–1848), and Anne (1820–1849). Early life Anne was the youngest of the Brontë children. She was born on 17 January 1820 on the outskirts of Bradford. Her father, Patrick, was curate there. Anne was baptised there on 25 March 1820. Later Patrick was appointed to the perpetual curacy in Haworth, a small town away. In April 1820 the family moved into the five-roomed Haworth Parsonage. When Anne was barely a year old her mother, Maria, became ill, probably with uterine cancer. Maria Branwell died on 15 September 1821. Patrick tried to remarry, without success. Maria's sister, Elizabeth Branwell (1776–1842), had moved to the parsonage initially for Maria, but spent the rest of her life there raising Maria's children. She did it from a sense of duty. She was stern and expected respect, not love. There was little affection between her and the older children. According to tradition Anne was her favourite. In Elizabeth Gaskell's biography of Charlotte, Patrick remembered Anne as precocious. Patrick said that when Anne was four years old he had asked her what a child most wanted and that she had said: "age and experience". In summer 1824 Patrick sent daughters Maria, Elizabeth, Charlotte, and Emily to Crofton Hall in Crofton, West Yorkshire, and subsequently to the Clergy Daughter's School at Cowan Bridge in Lancashire. Maria and Elizabeth Brontë died of consumption on 6 May and 15 June 1825 respectively, and Charlotte and Emily were brought home. The unexpected deaths distressed the family so much that Patrick could not face sending them away again. They were educated at home for the next five years, largely by Elizabeth Branwell and Patrick. The children made little attempt to mix with others outside the parsonage and relied on each other for company. The bleak moors surrounding Haworth became their playground. Anne shared a room with her aunt, Elizabeth. They were close, and she may have influenced Anne's personality and religious beliefs. Education Anne's studies at home included music and drawing. The Keighley church organist gave piano lessons to Anne and Emily and Branwell, and John Bradley of Keighley gave them art lessons. Each drew with some skill. Their aunt tried to teach the girls how to run a household, but they inclined more to literature. They read much from their father's well-stocked library. Their reading included the Bible, Homer, Virgil, Shakespeare, Milton, Byron, Scott, articles from Blackwood's Edinburgh Magazine and Fraser's Magazine and The Edinburgh Review, and miscellaneous books of history and geography and biography. Their reading fed their imaginations, and their creativity soared after their father gave Branwell a set of toy soldiers in June 1826. They gave names to the soldiers, or the "Twelves", and developed their characters. This led to the creation of an imaginary world: the African kingdom of "Angria", which was illustrated with maps and watercolour renderings. The children devised plots about the inhabitants of Angria and its capital city, "Glass Town", later called Verreopolis or Verdopolis. Their fantastical worlds and kingdoms gradually acquired characteristics from their historical world, drawing from its sovereigns, armies, heroes, outlaws, fugitives, inns, schools, and publishers. The characters and lands created by the children were given newspapers and magazines and chronicles written in tiny books with writing so small that it was difficult to read without a magnifying glass. These creations and writings were an apprenticeship for their later literary talents. Juvenilia Around 1831, when Anne was eleven, she and Emily broke away from Charlotte and Branwell to create and develop their own fantasy world, "Gondal". Anne and Emily were particularly close, especially after Charlotte left for Roe Head School in January 1831. Charlotte's friend Ellen Nussey visited Haworth in 1833 and reported that Emily and Anne were "like twins" and "inseparable companions". She described Anne so: Anne took lessons from Charlotte after Charlotte had returned from Roe Head. Charlotte returned to Roe Head as a teacher on 29 July 1835, accompanied by Emily as a pupil. Emily's tuition was largely financed by Charlotte's teaching. Emily was unable to adapt to life at school and was physically ill from homesickness within a few months. She was withdrawn from school by October and replaced by Anne. Anne was 15 and it was her first time away from home. She made few friends at Roe Head. She was quiet and hardworking and determined to stay to acquire the education which she would need to support herself. She stayed for two years and returned home only during Christmas and summer holidays. She won a good-conduct medal in December 1836. Charlotte's letters almost never mention Anne while Anne was at Roe Head, which might imply that they were not close, but Charlotte was at least concerned about Anne's health. By December 1837 Anne had become seriously ill with gastritis and embroiled in religious crisis. A Moravian minister was called to see her several times during her illness, suggesting her distress was caused, in part, by conflict with the local Anglican clergy. Charlotte wrote to their father and he brought Anne home. Employment at Blake Hall A year after leaving the school, and aged 19, Anne was seeking a teaching position. She was the daughter of a poor clergyman and needed to earn money. Her father had no private income and the parsonage would revert to the church on his death. Teaching or working as a governess were among few options for a poor and educated woman. In April 1839 Anne started work as a governess for the Ingham family at Blake Hall, near Mirfield. The children in her charge were spoiled and disobedient. Anne had great difficulty controlling them and little success in educating them. She was not allowed to punish them, and when she complained about their behaviour she received no support and was criticised for being incapable. The Inghams were dissatisfied with their children's progress and dismissed Anne. She returned home in 1839 at Christmas. At home also were Charlotte and Emily, who had left their positions, and Branwell. Anne's time at Blake Hall was so traumatic that she reproduced it in almost perfect detail in her novel Agnes Grey. William Weightman Anne returned to Haworth and met William Weightman (1814–1842), her father's new curate who had started work in the parish in August 1839. Weightman was 25 and had obtained a two-year licentiate in theology from the University of Durham. He was welcome at the parsonage. Anne's acquaintance with him parallels her writing a number of poems, which may suggest she fell in love with him although there is disagreement over this possibility. Little evidence exists beyond a small anecdote of Charlotte's to Ellen Nussey in January 1842. In Agnes Grey, Agnes' interest in the curate refreshes her interest in poetry. Outside fiction, William Weightman aroused much curiosity. It seems that he was good-looking and engaging, and that his easy humour and kindness towards the sisters made an impression. It is such a character that she portrays in Edward Weston, and that her heroine Agnes Grey finds deeply appealing. Weightman died of cholera in the same year. Anne expressed her grief for his death in her poem I will not mourn thee, lovely one, in which she called him "our darling". Governess From 1840 to 1845 Anne worked at Thorp Green Hall, a comfortable country house near York. Here she was governess to the children of the Reverend Edmund Robinson and his wife, Lydia. The house appeared as Horton Lodge in Agnes Grey. Anne had four pupils: Lydia (15), Elizabeth (13), Mary (12), and Edmund (8). She initially had problems similar to those at Blake Hall. Anne missed her home and family. In a diary paper in 1841 she wrote that she did not like her situation and wished to leave it. Her quiet and gentle disposition did not help. But Anne was determined and made a success of her position, becoming well-liked by her employers. Her charges, the Robinson girls, became lifelong friends. Anne spent only five or six weeks a year with her family, during holidays at Christmas and in June. The rest of her time was spent with the Robinsons. She accompanied the Robinsons on annual holidays to Scarborough. Between 1840 and 1844 Anne spent around five weeks each summer at the coastal town and loved it. A number of locations in Scarborough were used for her novels. She had opportunities to collect semi-precious stones, considering an interest in geology, at least in her novels, or from personal experience, as something suitable for men and women to be considered as equals. Anne and her sisters considered setting up a school while she was still working for the Robinsons. Various locations were considered, including the parsonage, but the project never materialised. Anne came home on the death of her aunt in early November 1842 while her sisters were in Brussels. Elizabeth Branwell left a £350 legacy (equivalent to £ in ) for each of her nieces. It was at the Long Plantation at Thorp Green in 1842 that Anne wrote her three-verse poem Lines Composed in a Wood on a Windy Day, which was published in 1846 under the name Acton Bell. In January 1843 Anne returned to Thorp Green and secured a position for Branwell. He was to tutor Edmund, who was growing too old to be in Anne's care. Branwell did not live in the house as Anne did. Anne's vaunted calm appears to have been the result of hard-fought battles, balancing deeply felt emotions with careful thought, a sense of responsibility and resolute determination. All three Brontë sisters worked as governesses or teachers, and all experienced problems controlling their charges, gaining support from their employers, and coping with homesickness, but Anne was the only one who persevered and made a success of her work. Back at the parsonage Anne and Branwell taught at Thorp Green for the next three years. Branwell entered into a secret relationship with his employer's wife, Lydia Robinson. When Anne and Branwell returned home for the holidays in June 1846 Anne resigned. Anne gave no reason, but the reason may have been the relationship between her brother and Mrs Robinson. Branwell was dismissed when his employer found out about the relationship. Anne continued to exchange letters with Elizabeth and Mary Robinson. They came to visit Anne in December 1848. Anne took Emily to visit some of the places which Anne had become fond of. A plan to visit Scarborough fell through, but they went to York and saw York Minster. A book of poems The Brontës were at home with their father during the summer of 1845. None had any immediate prospect of employment. Charlotte found Emily's poems, which had been shared only with Anne. Charlotte said that they should be published. Anne showed her own poems to Charlotte, and Charlotte "thought that these verses too had a sweet sincere pathos of their own". The sisters eventually reached an agreement. They told nobody what they were doing. With the money from Elizabeth Branwell they paid for publication of a collection of poems, 21 from Anne and 21 from Emily and 19 from Charlotte. The book was published under pen names which retained their initials but concealed their sex. Anne's pseudonym was Acton Bell. Poems by Currer, Ellis, and Acton Bell was available for sale in May 1846. The cost of publication was 31 pounds and 10 shillings, about three-quarters of Anne's salary at Thorp Green. On 7 May 1846 the first three copies were delivered to Haworth Parsonage. The book achieved three somewhat favourable reviews, but was a commercial failure, with only two copies sold in the first year. Anne nonetheless found a market for her later poetry. The Leeds Intelligencer and Fraser's Magazine published her poem The Narrow Way under her pseudonym in December 1848. Four months earlier, Fraser's Magazine had published her poem The Three Guides. Novels Agnes Grey By July 1846 a package containing the manuscripts of each sister's first novel was making the rounds of London publishers. Charlotte had written The Professor, Emily had written Wuthering Heights, and Anne had written Agnes Grey. After some rejections Wuthering Heights and Agnes Grey were accepted by the publisher Thomas Cautley Newby. The Professor was rejected. It was not long before Charlotte had completed her second novel, Jane Eyre. Jane Eyre was accepted immediately by Smith, Elder & Co. It was the first published of the sisters' novels, and an immediate and resounding success. Meanwhile, Anne and Emily's novels "lingered in the press". Anne and Emily were obliged to pay fifty pounds to help meet their publishing costs. Their publisher was galvanised by the success of Jane Eyre and published Wuthering Heights and Agnes Grey together in December 1847. They sold well, but Agnes Grey was outshone by Emily's more dramatic Wuthering Heights. The Tenant of Wildfell Hall Anne's second novel, The Tenant of Wildfell Hall, was published in the last week of June 1848. The novel challenged contemporary social and legal structures. In 1913 May Sinclair said that the slamming of Helen Huntingdon's bedroom door against her husband reverberated throughout Victorian England. In the book Helen has left her husband to protect their son from his influence. She supports herself and her son in hiding by painting. She has violated social conventions and English law. Until the Married Women's Property Act 1870 was passed, a married woman had no legal existence independent from her husband and could not own property nor sue for divorce nor control the custody of her children. Helen's husband had a right to reclaim her and charge her with kidnapping. By subsisting on her own income she was stealing her husband's property since this income was legally his. Anne stated her intentions in the second edition, published in August 1848. She presented a forceful rebuttal to critics (among them Charlotte) who considered her portrayal of Huntingdon overly graphic and disturbing. Anne "wished to tell the truth". She explained further that Anne also castigated reviewers who speculated on the sex of authors and the perceived appropriateness of their writing. She was London visit In July 1848 Anne and Charlotte went to Charlotte's publisher George Smith in London to dispel the rumour that the "Bell brothers" were one person. Emily refused to go. Anne and Charlotte spent several days with Smith. Many years after Anne's death, he wrote in the Cornhill Magazine his impressions of her: The increasing popularity of the Bells' works led to renewed interest in Poems by Currer, Ellis, and Acton Bell, originally published by Aylott and Jones. The remaining print run was bought by Smith and Elder, and reissued under new covers in November 1848. It still sold poorly. Family tragedies Branwell's persistent drunkenness disguised the decline of his health and he died on 24 September 1848. His sudden death shocked the family. He was 31. The cause was recorded as chronic bronchitismarasmus, but was probably tuberculosis. The family suffered from coughs and colds during the winter of 1848, and Emily became very ill. She worsened over two months and rejected medical aid until the morning of 19 December. She was very weak and said that "if you will send for a doctor, I will see him now". But Emily died at about two o'clock that afternoon, aged 30. Emily's death deeply affected Anne. Her grief undermined her physical health. Over Christmas Anne had influenza. Her symptoms intensified and in early January her father sent for a Leeds physician. The doctor diagnosed advanced consumption with little hope of recovery. Anne met the news with characteristic determination and self-control. However, in her letter to Ellen Nussey she expressed her frustrated ambitions: Unlike Emily, Anne took all the recommended medicines and followed the advice she was given. That same month she wrote her last poem, A dreadful darkness closes in, in which she deals with being terminally ill. Her health fluctuated for months, but she grew thinner and weaker. Death Anne seemed somewhat better in February. She decided to visit Scarborough to see if the change of location and the fresh sea air might benefit her. Charlotte was initially against the journey, fearing that it would be too stressful, but changed her mind after the doctor's approval and Anne's assurance that it was her last hope. On 24 May 1849 Anne set off for Scarborough with Charlotte and Ellen Nussey. They spent a day and night in York en route. Here they escorted Anne in a wheelchair and did some shopping and visited York Minster. It was clear that Anne had little strength left. On Sunday 27 May Anne asked Charlotte whether it would be easier to return home and die instead of remaining in Scarborough. A doctor was consulted the next day and said that death was close. Anne received the news quietly. She expressed her love and concern for Ellen and Charlotte, and whispered for Charlotte to "take courage". Anne died at about two o'clock in the afternoon on Monday 28 May 1849, aged 29. Charlotte decided to "lay the flower where it had fallen". So Anne was buried in Scarborough. The funeral was held on 30 May. Patrick Brontë could not have made the journey if he had wished to. The former schoolmistress at Roe Head, Miss Wooler, was in Scarborough, and she was the only other mourner at Anne's funeral. Anne was buried in St Mary's churchyard, beneath the castle walls and overlooking the bay. Charlotte commissioned a stone to be placed over her grave with the inscription, When Charlotte visited the grave three years later she discovered multiple errors on the headstone and had it refaced. But this was not free of error. For Anne was 29 when she died, not 28 as written. In 2011 the Brontë Society installed a new plaque at Anne Brontë's grave. The original gravestone had become illegible at places and could not be restored. It was left undisturbed while the new plaque was laid horizontally, interpreting the fading words of the original and correcting its error. In April 2013 the Brontë Society held a dedication and blessing service at the gravesite to mark the installation of the new plaque. Reputation After Anne's death Charlotte addressed issues with the first edition of Agnes Grey for its republication, but she prevented republication of The Tenant of Wildfell Hall. In 1850 Charlotte wrote that Subsequent critics paid less attention to Anne's work and some dismissed her as "a Brontë without genius". But since the mid-20th century her life and works have been given better attention. Biographies by Winifred Gérin (1959), Elizabeth Langland (1989) and Edward Chitham (1991), as well as Juliet Barker's group biography, The Brontës (1994; revised edition 2000), and work by critics such as Inga-Stina Ewbank, Marianne Thormählen, Laura C Berry, Jan B Gordon, Mary Summers, and Juliet McMaster has led to acceptance of Anne Brontë as a major literary figure. Sally McDonald of the Brontë Society said in 2013 that in some ways Anne "is now viewed as the most radical of the sisters, writing about tough subjects such as women's need to maintain independence and how alcoholism can tear a family apart." In 2016 Lucy Mangan championed Anne Brontë in the BBC's Being the Brontës, declaring that "her time has come". Works See also List of feminist literature - 1840s Notes References Alexander, Christine & Smith, Margaret, The Oxford Companion to the Brontës, Oxford University Press, 2006, Barker, Juliet, The Brontës, St. Martin's Pr., Chitham, Edward, A Life of Anne Brontë, Oxford: Blackwell Publishers, 1991, Fraser, Rebeca, The Brontës: Charlotte Brontë and her family, Crown Publishers, 1988, Gérin, Winifred, Anne Brontë, Allen Lane, 1976, Harrison, Ada and Stanford, Derek, Anne Brontë – Her Life and Work, Archon Books, 1970 (first published 1959). Further reading Allott, Miriam, The Brontës: The Critical Heritage, 1984 Barker, Juliet, The Brontës, 2000 (revised edition) Chadwick, Ellis, In the Footsteps of the Brontës, 1982 Chitham, Edward, A Brontë Family Chronology, 2003 Chitham, Edward, A Life of Anne Brontë, 1991 Eagleton, Terry, Myths of Power, 1975 Ellis, Samantha, Take Courage: Anne Brontë and the Art of Life, 2016 Gérin, Winifred, Anne Brontë: A Biography, 1959 Langland, Elizabeth, Anne Brontë: The Other One, 1989 Miller, Lucasta, The Brontë Myth, 2001 Scott, P. J. M., Anne Brontë: A New Critical Assessment, 1983 Summers, Mary, Anne Brontë Educating Parents, 2003 Wise, T. J. and Symington, J. A. (eds.), The Brontës: Their Lives, Friendships and Correspondences, 1932 External links Anne Brontë – Her grave in Scarborough Anne Brontë – The Scarborough Connection , biographical materials and complete poems of Anne Brontë Anne Brontë – Writer Of Genius, biographical materials on Anne and her family Anne Bronte at Northwestern University, information about Anne and Victorian society, critical reception of The Tenant of Wildfell Hall Anne Brontë's biography and works at A Celebration of Women Writers Poems by Anne Brontë at English Poetry Website of the Brontë Society and Brontë Parsonage Museum in Haworth Anne Brontë papers, circa 1840s-1895, held by the Henry W. and Albert A. Berg Collection of English and American Literature, New York Public Library. Electronic editions Anne Brontë eText Archive Music On Christmas Morning – Audio Poem 1820 births 1849 deaths 19th-century Christian universalists 19th-century deaths from tuberculosis 19th-century English novelists 19th-century English women writers 19th-century pseudonymous writers Anglican universalists Anglican writers Anne Burials in North Yorkshire English Anglicans English Christian universalists English governesses English people of Cornish descent English people of Irish descent English women novelists English women poets Tuberculosis deaths in England People from Thornton and Allerton Writers from Bradford Pseudonymous women writers Victorian novelists Victorian women writers

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https://en.wikipedia.org/wiki/Augustine%20of%20Hippo

Augustine of Hippo

Augustine of Hippo ( , ; ; 13 November 354 – 28 August 430), also known as Saint Augustine, was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Africa. His writings influenced the development of Western philosophy and Western Christianity, and he is viewed as one of the most important Church Fathers of the Latin Church in the Patristic Period. His many important works include The City of God, On Christian Doctrine, and Confessions. According to his contemporary, Jerome, Augustine "established anew the ancient Faith". In his youth he was drawn to the Manichaean faith, and later to the Hellenistic philosophy of Neoplatonism. After his conversion to Christianity and baptism in 386, Augustine developed his own approach to philosophy and theology, accommodating a variety of methods and perspectives. Believing the grace of Christ was indispensable to human freedom, he helped formulate the doctrine of original sin and made significant contributions to the development of just war theory. When the Western Roman Empire began to disintegrate, Augustine imagined the Church as a spiritual City of God, distinct from the material Earthly City. The segment of the Church that adhered to the concept of the Trinity as defined by the Council of Nicaea and the Council of Constantinople closely identified with Augustine's On the Trinity. Augustine is recognized as a saint in the Catholic Church, the Eastern Orthodox Church, the Lutheran Churches and the Anglican Communion. He is also a preeminent Catholic Doctor of the Church and the patron of the Augustinians. His memorial is celebrated on 28 August, the day of his death. Augustine is the patron saint of brewers, printers, theologians, and a number of cities and dioceses. His thoughts profoundly influenced the medieval worldview. Many Protestants, especially Calvinists and Lutherans, consider him one of the theological fathers of the Protestant Reformation due to his teachings on salvation and divine grace. Protestant Reformers generally, and Martin Luther in particular, held Augustine in preeminence among early Church Fathers. From 1505 to 1521, Luther was a member of the Order of the Augustinian Eremites. In the East, his teachings are more disputed, and were notably attacked by John Romanides, but other theologians and figures of the Eastern Orthodox Church have shown significant approbation of his writings, chiefly Georges Florovsky. The most controversial doctrine associated with him, the filioque, was rejected by the Eastern Orthodox Church. Other disputed teachings include his views on original sin, the doctrine of grace, and predestination. Though considered to be mistaken on some points, he is still considered a saint and has influenced some Eastern Church Fathers, most notably Gregory Palamas. In the Greek and Russian Orthodox Churches, his feast day is celebrated on 15 June. The historian Diarmaid MacCulloch has written: "Augustine's impact on Western Christian thought can hardly be overstated; only his beloved example, Paul of Tarsus, has been more influential, and Westerners have generally seen Paul through Augustine's eyes." Life Background Augustine of Hippo, also known as Saint Augustine or Saint Austin, is known by various cognomens throughout the many denominations of the Christian world, including Blessed Augustine and the Doctor of Grace (). Hippo Regius, where Augustine was the bishop, was in modern-day Annaba, Algeria. Childhood and education Augustine was born in 354 in the municipium of Thagaste (now Souk Ahras, Algeria) in the Roman province of Numidia. His mother, Monica or Monnica, was a devout Christian; his father Patricius was a pagan who converted to Christianity on his deathbed. He had a brother named Navigius and a sister whose name is lost but is conventionally remembered as Perpetua. Scholars generally agree that Augustine and his family were Berbers, an ethnic group indigenous to North Africa, but were heavily Romanized, speaking only Latin at home as a matter of pride and dignity. In his writings, Augustine leaves some information as to the consciousness of his African heritage, at least geographically and perhaps ethnically. For example, he refers to Apuleius as "the most notorious of us Africans," to Ponticianus as "a country man of ours, insofar as being African," and to Faustus of Mileve as "an African Gentleman". Augustine's family name, Aurelius, suggests his father's ancestors were freedmen of the gens Aurelia given full Roman citizenship by the Edict of Caracalla in 212. Augustine's family had been Roman, from a legal standpoint, for at least a century when he was born. It is assumed that his mother, Monica, was of Berber origin, on the basis of her name, but as his family were honestiores, an upper class of citizens known as honorable men, Augustine's first language was likely Latin. At the age of 11, Augustine was sent to school at Madaurus (now M'Daourouch), a small Numidian city about south of Thagaste. There he became familiar with Latin literature, as well as pagan beliefs and practices. His first insight into the nature of sin occurred when he and a number of friends stole fruit they did not want from a neighborhood garden. He tells this story in his autobiography, Confessions. He remembers he stole the fruit, not because he was hungry, but because "it was not permitted." His very nature, he says, was flawed. "It was foul, and I loved it. I loved my own error—not that for which I erred, but the error itself." From this incident he concluded the human person is naturally inclined to sin, and in need of the grace of Christ. At the age of 17, through the generosity of his fellow citizen Romanianus, Augustine went to Carthage to continue his education in rhetoric, though it was above the financial means of his family. In spite of the good warnings of his mother, as a youth Augustine lived a hedonistic lifestyle for a time, associating with young men who boasted of their sexual exploits. The need to gain their acceptance encouraged inexperienced boys like Augustine to seek or make up stories about sexual experiences. Despite multiple claims to the contrary, it has been suggested that Augustine's actual sexual experiences were likely with members of the opposite sex only. It was while he was a student in Carthage that he read Cicero's dialogue Hortensius (now lost), which he described as leaving a lasting impression, enkindling in his heart the love of wisdom and a great thirst for truth. It started his interest in philosophy. Although raised Christian, Augustine became a Manichaean, much to his mother's chagrin. At about the age of 17, Augustine began a relationship with a young woman in Carthage. Though his mother wanted him to marry a person of his class, the woman remained his lover. He was warned by his mother to avoid fornication (sex outside marriage), but Augustine persisted in the relationship for over fifteen years, and the woman gave birth to his son Adeodatus (372–388), which means "Gift from God", who was viewed as extremely intelligent by his contemporaries. In 385, Augustine ended his relationship with his lover in order to prepare to marry a teenaged heiress. By the time he was able to marry her, however, he had decided to become a Christian priest and the marriage did not happen. Augustine was, from the beginning, a brilliant student, with an eager intellectual curiosity, but he never mastered Greek – his first Greek teacher was a brutal man who constantly beat his students, and Augustine rebelled and refused to study. By the time he realized he needed to know Greek, it was too late; and although he acquired a smattering of the language, he was never eloquent with it. He did however, become a master of Latin. Move to Carthage, Rome, and Milan Augustine taught grammar at Thagaste during 373 and 374. The following year he moved to Carthage to conduct a school of rhetoric and remained there for the next nine years. Disturbed by unruly students in Carthage, he moved to establish a school in Rome, where he believed the best and brightest rhetoricians practiced, in 383. However, Augustine was disappointed with the apathetic reception. It was the custom for students to pay their fees to the professor on the last day of the term, and many students attended faithfully all term, and then did not pay. Manichaean friends introduced him to the prefect of the City of Rome, Symmachus, who had been asked by the imperial court at Milan to provide a rhetoric professor. Augustine won the job and headed north to take his position in Milan in late 384. Thirty years old, he had won the most visible academic position in the Latin world at a time when such posts gave ready access to political careers. Although Augustine spent ten years as a Manichaean, he was never an initiate or "elect", but an "auditor", the lowest level in this religion's hierarchy. While still at Carthage a disappointing meeting with the Manichaean bishop, Faustus of Mileve, a key exponent of Manichaean theology, started Augustine's scepticism of Manichaeanism. In Rome, he reportedly turned away from Manichaeanism, embracing the scepticism of the New Academy movement. Because of his education, Augustine had great rhetorical prowess and was very knowledgeable of the philosophies behind many faiths. At Milan, his mother's religiosity, Augustine's own studies in Neoplatonism, and his friend Simplicianus all urged him towards Christianity. This was shortly after the Roman emperor Theodosius I declared Christianity to be the only legitimate religion for the Roman Empire on 27 February 380 by the Edict of Thessalonica and then issued a decree of death for all Manichaean monks in 382. Initially Augustine was not strongly influenced by Christianity and its ideologies, but after coming in contact with Ambrose of Milan, Augustine reevaluated himself and was forever changed. Augustine arrived in Milan and visited Ambrose, having heard of his reputation as an orator. Like Augustine, Ambrose was a master of rhetoric, but older and more experienced. Soon, their relationship grew, as Augustine wrote, "And I began to love him, of course, not at the first as a teacher of the truth, for I had entirely despaired of finding that in thy Church—but as a friendly man." Augustine was very much influenced by Ambrose, even more than by his own mother and others he admired. In his Confessions, Augustine states, "That man of God received me as a father would, and welcomed my coming as a good bishop should." Ambrose adopted Augustine as a spiritual son after the death of Augustine's father. Augustine's mother had followed him to Milan and arranged a respectable marriage for him. Although Augustine acquiesced, he had to dismiss his concubine and grieved for having forsaken his lover. He wrote, "My mistress being torn from my side as an impediment to my marriage, my heart, which clave to her, was racked, and wounded, and bleeding." Augustine confessed he had not been a lover of wedlock so much as a slave of lust, so he procured another concubine since he had to wait two years until his fiancée came of age. However, his emotional wound was not healed. It was during this period that he uttered his famously insincere prayer, "Grant me chastity and continence, but not yet." There is evidence Augustine may have considered this former relationship to be equivalent to marriage. In his Confessions, he admitted the experience eventually produced a decreased sensitivity to pain. Augustine eventually broke off his engagement to his eleven-year-old fiancée, but never renewed his relationship with either of his concubines. Alypius of Thagaste steered Augustine away from marriage, saying they could not live a life together in the love of wisdom if he married. Augustine looked back years later on the life at Cassiciacum, a villa outside of Milan where he gathered with his followers, and described it as Christianae vitae otium – the leisure of Christian life. Conversion to Christianity and priesthood In late August of 386, at the age of 31, having heard of Ponticianus's and his friends' first reading of the life of Anthony of the Desert, Augustine converted to Christianity. As Augustine later told it, his conversion was prompted by hearing a child's voice say "take up and read" (). Resorting to the sortes biblicae, he opened a book of St. Paul's writings (codex apostoli, 8.12.29) at random and read Romans 13: 13–14: "Not in rioting and drunkenness, not in chambering and wantonness, not in strife and envying, but put on the Lord Jesus Christ, and make no provision for the flesh to fulfill the lusts thereof." He later wrote an account of his conversion in his Confessions (), which has since become a classic of Christian theology and a key text in the history of autobiography. This work is an outpouring of thanksgiving and penitence. Although it is written as an account of his life, the Confessions also talks about the nature of time, causality, free will, and other important philosophical topics. The following is taken from that work: Ambrose baptized Augustine and his son Adeodatus, in Milan on Easter Vigil, 24–25 April 387. A year later, in 388, Augustine completed his apology On the Holiness of the Catholic Church. That year, also, Adeodatus and Augustine returned home to Africa. Augustine's mother Monica died at Ostia, Italy, as they prepared to embark for Africa. Upon their arrival, they began a life of aristocratic leisure at Augustine's family's property. Soon after, Adeodatus, too, died. Augustine then sold his patrimony and gave the money to the poor. He only kept the family house, which he converted into a monastic foundation for himself and a group of friends. Furthermore, while he was known for his major contributions regarding Christian rhetoric, another major contribution was his preaching style. After converting to Christianity, Augustine turned against his profession as a rhetoric professor in order to devote more time to preaching. In 391 Augustine was ordained a priest in Hippo Regius (now Annaba), in Algeria. He was especially interested in discovering how his previous rhetorical training in Italian schools would help the Christian Church achieve its objective of discovering and teaching the different scriptures in the Bible. He became a famous preacher (more than 350 preserved sermons are believed to be authentic), and was noted for combating the Manichaean religion, to which he had formerly adhered. He preached around 6,000 to 10,000 sermons when he was alive; however, there are only around 500 sermons that are accessible today. When Augustine preached his sermons, they were recorded by stenographers. Some of his sermons would last over one hour and he would preach multiple times throughout a given week. When talking to his audience, he would stand on an elevated platform; however, he would walk towards the audience during his sermons. When he was preaching, he used a variety of rhetorical devices that included analogies, word pictures, similes, metaphors, repetition, and antithesis when trying to explain more about the Bible. In addition, he used questions and rhymes when talking about the differences between people's life on Earth and Heaven as seen in one of his sermons that was preached in 412 AD. Augustine believed that the preachers' ultimate goal is to ensure the salvation of their audience. In 395, he was made coadjutor Bishop of Hippo and became full Bishop shortly thereafter, hence the name "Augustine of Hippo"; and he gave his property to the church of Thagaste. He remained in that position until his death in 430. Bishops were the only individuals allowed to preach when he was alive and he scheduled time to preach after being ordained despite a busy schedule made up of preparing sermons and preaching at other churches besides his own. When serving as the Bishop of Hippo, his goal was to minister to individuals in his congregation and he would choose the passages that the church planned to read every week. As bishop, he believed that it was his job to interpret the work of the Bible. He wrote his autobiographical Confessions in 397–398. His work The City of God was written to console his fellow Christians shortly after the Visigoths had sacked Rome in 410. Augustine worked tirelessly to convince the people of Hippo to convert to Christianity. Though he had left his monastery, he continued to lead a monastic life in the episcopal residence. Much of Augustine's later life was recorded by his friend Possidius, bishop of Calama (present-day Guelma, Algeria), in his Sancti Augustini Vita. During this latter part of Augustine's life, he helped lead a large community of Christians against different political and religious factors which had major influence on his writings. Possidius admired Augustine as a man of powerful intellect and a stirring orator who took every opportunity to defend Christianity against its detractors. Possidius also described Augustine's personal traits in detail, drawing a portrait of a man who ate sparingly, worked tirelessly, despised gossip, shunned the temptations of the flesh, and exercised prudence in the financial stewardship of his see. Death and sainthood Shortly before Augustine's death, the Vandals, a Germanic tribe that had converted to Arianism, invaded Roman Africa. The Vandals besieged Hippo in the spring of 430, when Augustine entered his final illness. According to Possidius, one of the few miracles attributed to Augustine, the healing of an ill man, took place during the siege. Augustine has been cited to have excommunicated himself upon the approach of his death in an act of public penance and solidarity with sinners. Spending his final days in prayer and repentance, he requested the penitential Psalms of David be hung on his walls so he could read them and upon which led him to "[weep] freely and constantly" according to Posiddius' biography. He directed the library of the church in Hippo and all the books therein should be carefully preserved. He died on 28 August 430. Shortly after his death, the Vandals lifted the siege of Hippo, but they returned soon after and burned the city. They destroyed all but Augustine's cathedral and library, which they left untouched. Augustine was canonized by popular acclaim, and later recognized as a Doctor of the Church in 1298 by Pope Boniface VIII. His feast day is 28 August, the day on which he died. He is considered the patron saint of brewers, printers, theologians, and a number of cities and dioceses. He is invoked against sore eyes. Augustine is remembered in the Church of England's calendar of saints with a lesser festival on 28 August. Relics According to Bede's True Martyrology, Augustine's body was later translated or moved to Cagliari, Sardinia, by the Catholic bishops expelled from North Africa by Huneric. Around 720, his remains were transported again by Peter, bishop of Pavia and uncle of the Lombard king Liutprand, to the church of San Pietro in Ciel d'Oro in Pavia, in order to save them from frequent coastal raids by Saracens. In January 1327, Pope John XXII issued the papal bull Veneranda Santorum Patrum, in which he appointed the Augustinians guardians of the tomb of Augustine (called Arca), which was remade in 1362 and elaborately carved with bas-reliefs of scenes from Augustine's life, created by Giovanni di Balduccio. In October 1695, some workmen in the Church of San Pietro in Ciel d'Oro in Pavia discovered a marble box containing human bones (including part of a skull). A dispute arose between the Augustinian hermits (Order of Saint Augustine) and the regular canons (Canons Regular of Saint Augustine) as to whether these were the bones of Augustine. The hermits did not believe so; the canons affirmed they were. Eventually Pope Benedict XIII (1724–1730) directed the Bishop of Pavia, Monsignor Pertusati, to make a determination. The bishop declared that, in his opinion, the bones were those of Augustine. The Augustinians were expelled from Pavia in 1785, Augustine's ark and relics were brought to Pavia Cathedral in 1799. San Pietro fell into disrepair, but was finally restored in the 1870s, under the urging of Agostino Gaetano Riboldi, and reconsecrated in 1896 when the relics of Augustine and the shrine were once again reinstalled. In 1842, a portion of Augustine's right arm (cubitus) was secured from Pavia and returned to Annaba. It now rests in the Saint Augustin Basilica within a glass tube inserted into the arm of a life-size marble statue of the saint. Views and thought Augustine's large contribution of writings covered diverse fields including theology, philosophy and sociology. Along with John Chrysostom, Augustine was among the most prolific scholars of the early church by quantity. Theology Christian anthropology Augustine was one of the first Christian ancient Latin authors with a very clear vision of theological anthropology. He saw the human being as a perfect unity of soul and body. In his late treatise On Care to Be Had for the Dead, section 5 (420) he exhorted respect for the body on the grounds it belonged to the very nature of the human person. Augustine's favourite figure to describe body-soul unity is marriage: caro tua, coniunx tua – your body is your wife. Initially, the two elements were in perfect harmony. After the fall of humanity they are now experiencing dramatic combat between one another. They are two categorically different things. The body is a three-dimensional object composed of the four elements, whereas the soul has no spatial dimensions. Soul is a kind of substance, participating in reason, fit for ruling the body. Augustine was not preoccupied, as Plato and Descartes were, in detailed efforts to explain the metaphysics of the soul-body union. It sufficed for him to admit they are metaphysically distinct: to be a human is to be a composite of soul and body, with the soul superior to the body. The latter statement is grounded in his hierarchical classification of things into those that merely exist, those that exist and live, and those that exist, live, and have intelligence or reason. Like other Church Fathers such as Athenagoras, Tertullian, Clement of Alexandria and Basil of Caesarea, Augustine "vigorously condemned the practice of induced abortion", and although he disapproved of an abortion during any stage of pregnancy, he made a distinction between early and later abortions. He acknowledged the distinction between "formed" and "unformed" fetuses mentioned in the Septuagint translation of Exodus 21:22–23, which incorrectly translates the word "harm" (from the original Hebrew text) as "form" in the Koine Greek of the Septuagint. His view was based on the Aristotelian distinction "between the fetus before and after its supposed 'vivification. Therefore, he did not classify as murder the abortion of an "unformed" fetus since he thought it could not be known with certainty the fetus had received a soul. Augustine held that "the timing of the infusion of the soul was a mystery known to God alone". However, he considered procreation as "one of the goods of marriage; abortion figured as a means, along with drugs which cause sterility, of frustrating this good. It lay along a continuum which included infanticide as an instance of 'lustful cruelty' or 'cruel lust.' Augustine called the use of means to avoid the birth of a child an 'evil work:' a reference to either abortion or contraception or both." Creation In City of God, Augustine rejected both the contemporary ideas of ages (such as those of certain Greeks and Egyptians) that differed from the Church's sacred writings. In The Literal Interpretation of Genesis, Augustine argued that God had created everything in the universe simultaneously and not over a period of six days. He argued the six-day structure of creation presented in the Book of Genesis represents a logical framework, rather than the passage of time in a physical way – it would bear a spiritual, rather than physical, meaning, which is no less literal. One reason for this interpretation is the passage in Sirach 18:1, creavit omnia simul ("He created all things at once"), which Augustine took as proof that the days of Genesis 1 had to be taken non-literalistically. As an additional support for describing the six days of creation as a heuristic device, Augustine thought the actual event of creation would be incomprehensible by humans and therefore needed to be translated. Augustine also does not envision original sin as causing structural changes in the universe, and even suggests that the bodies of Adam and Eve were already created mortal before the Fall. Ecclesiology Augustine developed his doctrine of the Church principally in reaction to the Donatist sect. He taught there is one Church, but within this Church there are two realities, namely, the visible aspect (the institutional hierarchy, the Catholic sacraments, and the laity) and the invisible (the souls of those in the Church, who are either dead, sinful members or elect predestined for Heaven). The former is the institutional body established by Christ on earth which proclaims salvation and administers the sacraments, while the latter is the invisible body of the elect, made up of genuine believers from all ages, and who are known only to God. The Church, which is visible and societal, will be made up of "wheat" and "tares", that is, good and wicked people (as per Mat. 13:30), until the end of time. This concept countered the Donatist claim that only those in a state of grace were the "true" or "pure" church on earth, and that priests and bishops who were not in a state of grace had no authority or ability to confect the sacraments. Augustine's ecclesiology was more fully developed in City of God. There he conceives of the church as a heavenly city or kingdom, ruled by love, which will ultimately triumph over all earthly empires which are self-indulgent and ruled by pride. Augustine followed Cyprian in teaching that bishops and priests of the Church are the successors of the Apostles, and their authority in the Church is God-given. The concept of Church invisible was advocated by Augustine as part of his refutation of the Donatist sect, though he, as other Church Fathers before him, saw the invisible Church and visible Church as one and the same thing, unlike the later Protestant reformers who did not identify the Catholic Church as the true church. He was strongly influenced by the Platonist belief that true reality is invisible and that, if the visible reflects the invisible, it does so only partially and imperfectly (see Theory of Forms). Others question whether Augustine really held to some form of an "invisible true Church" concept. Eschatology Augustine originally believed in premillennialism, namely that Christ would establish a literal 1,000-year kingdom prior to the general resurrection, but later rejected the belief, viewing it as carnal. During the medieval period, the Catholic Church built its system of eschatology on Augustinian amillennialism, where Christ rules the earth spiritually through his triumphant church. During the Reformation, theologians such as John Calvin accepted amillennialism. Augustine taught that the eternal fate of the soul is determined at death, and that purgatorial fires of the intermediate state purify only those who died in communion with the Church. His teaching provided fuel for later theology. Mariology Although Augustine did not develop an independent Mariology, his statements on Mary surpass in number and depth those of other early writers. Even before the Council of Ephesus, he defended the Ever-Virgin Mary as the Mother of God, believing her to be "full of grace" (following earlier Latin writers such as Jerome) on account of her sexual integrity and innocence. Likewise, he affirmed that the Virgin Mary "conceived as virgin, gave birth as virgin and stayed virgin forever". Natural knowledge and biblical interpretation Augustine took the view that, if a literal interpretation contradicts science and humans' God-given reason, the biblical text should be interpreted metaphorically. While each passage of Scripture has a literal sense, this "literal sense" does not always mean the Scriptures are mere history; at times they are rather an extended metaphor. Original sin Augustine taught that the sin of Adam and Eve was either an act of foolishness (insipientia) followed by pride and disobedience to God or that pride came first. The first couple disobeyed God, who had told them not to eat of the Tree of the knowledge of good and evil (Gen 2:17). The tree was a symbol of the order of creation. Self-centeredness made Adam and Eve eat of it, thus failing to acknowledge and respect the world as it was created by God, with its hierarchy of beings and values. They would not have fallen into pride and lack of wisdom if Satan had not sown into their senses "the root of evil" (radix Mali). Their nature was wounded by concupiscence or libido, which affected human intelligence and will, as well as affections and desires, including sexual desire. In terms of metaphysics, concupiscence is not a state of being but a bad quality, the privation of good or a wound. Augustine's understanding of the consequences of original sin and the necessity of redeeming grace was developed in the struggle against Pelagius and his Pelagian disciples, Caelestius and Julian of Eclanum, who had been inspired by Rufinus of Syria, a disciple of Theodore of Mopsuestia. They refused to agree original sin wounded human will and mind, insisting human nature was given the power to act, to speak, and to think when God created it. Human nature cannot lose its moral capacity for doing good, but a person is free to act or not act in a righteous way. Pelagius gave an example of eyes: they have capacity for seeing, but a person can make either good or bad use of it. Pelagians insisted human affections and desires were not touched by the fall either. Immorality, e.g. fornication, is exclusively a matter of will, i.e. a person does not use natural desires in a proper way. In opposition, Augustine pointed out the apparent disobedience of the flesh to the spirit, and explained it as one of the results of original sin, punishment of Adam and Eve's disobedience to God. Augustine had served as a "Hearer" for the Manichaeans for about nine years, who taught that the original sin was carnal knowledge. But his struggle to understand the cause of evil in the world started before that, at the age of nineteen. By malum (evil) he understood most of all concupiscence, which he interpreted as a vice dominating people and causing in men and women moral disorder. Agostino Trapè insists Augustine's personal experience cannot be credited for his doctrine about concupiscence. He considers Augustine's marital experience to be quite normal, and even exemplary, aside from the absence of Christian wedding rites. As J. Brachtendorf showed, Augustine used Ciceronian Stoic concept of passions, to interpret Paul's doctrine of universal sin and redemption. The view that not only human soul but also senses were influenced by the fall of Adam and Eve was prevalent in Augustine's time among the Fathers of the Church. It is clear the reason for Augustine's distancing from the affairs of the flesh was different from that of Plotinus, a Neoplatonist who taught that only through disdain for fleshly desire could one reach the ultimate state of mankind. Augustine taught the redemption, i.e. transformation and purification, of the body in the resurrection. Some authors perceive Augustine's doctrine as directed against human sexuality and attribute his insistence on continence and devotion to God as coming from Augustine's need to reject his own highly sensual nature as described in the Confessions. Augustine taught that human sexuality has been wounded, together with the whole of human nature, and requires redemption of Christ. That healing is a process realized in conjugal acts. The virtue of continence is achieved thanks to the grace of the sacrament of Christian marriage, which becomes therefore a remedium concupiscentiae – remedy of concupiscence. The redemption of human sexuality will be, however, fully accomplished only in the resurrection of the body. The sin of Adam is inherited by all human beings. Already in his pre-Pelagian writings, Augustine taught that Original Sin is transmitted to his descendants by concupiscence, which he regarded as the passion of both soul and body, making humanity a massa damnata (mass of perdition, condemned crowd) and much enfeebling, though not destroying, the freedom of the will. Although earlier Christian authors taught the elements of physical death, moral weakness, and a sin propensity within original sin, Augustine was the first to add the concept of inherited guilt (reatus) from Adam whereby an infant was eternally damned at birth. Although Augustine's anti-Pelagian defense of original sin was confirmed at numerous councils, i.e. Carthage (418), Ephesus (431), Orange (529), Trent (1546) and by popes, i.e. Pope Innocent I (401–417) and Pope Zosimus (417–418), his inherited guilt eternally damning infants was omitted by these councils and popes. Anselm of Canterbury established in his Cur Deus Homo the definition that was followed by the great 13th-century Schoolmen, namely that Original Sin is the "privation of the righteousness which every man ought to possess," thus separating it from concupiscence, with which some of Augustine's disciples had identified it, as later did Luther and Calvin. In 1567, Pope Pius V condemned the identification of Original Sin with concupiscence. Predestination Augustine taught that God orders all things while preserving human freedom. Prior to 396, he believed predestination was based on God's foreknowledge of whether individuals would believe in Christ, that God's grace was "a reward for human assent". Later, in response to Pelagius, Augustine said that the sin of pride consists in assuming "we are the ones who choose God or that God chooses us (in his foreknowledge) because of something worthy in us", and argued that God's grace causes the individual act of faith. Scholars are divided over whether Augustine's teaching implies double predestination, or the belief God chooses some people for damnation as well as some for salvation. Catholic scholars tend to deny he held such a view while some Protestants and secular scholars have held that Augustine did believe in double predestination. About 412, Augustine became the first Christian to understand predestination as a divine unilateral pre-determination of individuals' eternal destinies independently of human choice, although his prior Manichaean sect did teach this concept. Some Protestant theologians, such as Justo L. González and Bengt Hägglund, interpret Augustine's teaching that grace is irresistible, results in conversion, and leads to perseverance. In On Rebuke and Grace (De correptione et gratia), Augustine wrote: "And what is written, that He wills all men to be saved, while yet all men are not saved, may be understood in many ways, some of which I have mentioned in other writings of mine; but here I will say one thing: He wills all men to be saved, is so said that all the predestinated may be understood by it, because every kind of men is among them." Speaking of the twins Jacob and Esau, Augustine wrote in his book On the Gift of Perseverance, "[I]t ought to be a most certain fact that the former is of the predestinated, the latter is not." Sacramental theology Also in reaction to the Donatists, Augustine developed a distinction between the "regularity" and "validity" of the sacraments. Regular sacraments are performed by clergy of the Catholic Church, while sacraments performed by schismatics are considered irregular. Nevertheless, the validity of the sacraments does not depend upon the holiness of the priests who perform them (ex opere operato); therefore, irregular sacraments are still accepted as valid provided they are done in the name of Christ and in the manner prescribed by the Church. On this point, Augustine departs from the earlier teaching of Cyprian, who taught that converts from schismatic movements must be re-baptised. Augustine taught that sacraments administered outside the Catholic Church, though true sacraments, avail nothing. However, he also stated that baptism, while it does not confer any grace when done outside the Church, does confer grace as soon as one is received into the Catholic Church. Augustine is said to have held an understanding of the real presence of Christ in the Eucharist, saying that Christ's statement, "This is my body" referred to the bread he carried in his hands, and that Christians must have faith the bread and wine are in fact the body and blood of Christ, despite what they see with their eyes. For instance, he stated that "He [Jesus] walked here in the same flesh, and gave us the same flesh to be eaten unto salvation. But no one eats that flesh unless first he adores it; and thus it is discovered how such a footstool of the Lord's feet is adored; and not only do we not sin by adoring, we do sin by not adoring." John Riggs argued that Augustine held that Christ is really present in the elements of the Eucharist, but not in a bodily manner, because his body remains in Heaven. Augustine, in his work On Christian Doctrine, referred to the Eucharist as a "figure" and a "sign". Against the Pelagians, Augustine strongly stressed the importance of infant baptism. About the question whether baptism is an absolute necessity for salvation, however, Augustine appears to have refined his beliefs during his lifetime, causing some confusion among later theologians about his position. He said in one of his sermons that only the baptized are saved. This belief was shared by many early Christians. However, a passage from his City of God, concerning the Apocalypse, may indicate Augustine did believe in an exception for children born to Christian parents. Philosophy Astrology Augustine's contemporaries often believed astrology to be an exact and genuine science. Its practitioners were regarded as true men of learning and called mathematici. Astrology played a prominent part in Manichaean doctrine, and Augustine himself was attracted by their books in his youth, being particularly fascinated by those who claimed to foretell the future. Later, as a bishop, he warned that one should avoid astrologers who combine science and horoscopes. (Augustine's term "mathematici", meaning "astrologers", is sometimes mistranslated as "mathematicians".) According to Augustine, they were not genuine students of Hipparchus or Eratosthenes but "common swindlers". Epistemology Epistemological concerns shaped Augustine's intellectual development. His early dialogues Contra academicos (386) and De Magistro (389), both written shortly after his conversion to Christianity, reflect his engagement with sceptical arguments and show the development of his doctrine of divine illumination. The doctrine of illumination claims God plays an active and regular part in human perception and understanding by illuminating the mind so human beings can recognize intelligible realities God presents (as opposed to God designing the human mind to be reliable consistently, as in, for example, Descartes's idea of clear and distinct perceptions). According to Augustine, illumination is obtainable to all rational minds and is different from other forms of sense perception. It is meant to be an explanation of the conditions required for the mind to have a connection with intelligible entities. Augustine also posed the problem of other minds throughout different works, most famously perhaps in On the Trinity (VIII.6.9), and developed what has come to be a standard solution: the argument from analogy to other minds. In contrast to Plato and other earlier philosophers, Augustine recognized the centrality of testimony to human knowledge, and argued that what others tell us can provide knowledge even if we do not have independent reasons to believe their testimonial reports. Just war Augustine asserted Christians should be pacifists as a personal, philosophical stance. However, peacefulness in the face of a grave wrong that could only be stopped by violence would be a sin. Defence of one's self or others could be a necessity, especially when authorized by a legitimate authority. While not breaking down the conditions necessary for war to be just, Augustine coined the phrase in his work The City of God. In essence, the pursuit of peace must include the option of fighting for its long-term preservation. Such a war could not be pre-emptive, but defensive, to restore peace. Thomas Aquinas, centuries later, used the authority of Augustine's arguments in an attempt to define the conditions under which a war could be just. Free will Included in Augustine's earlier theodicy is the claim God created humans and angels as rational beings possessing free will. Free will was not intended for sin, meaning it is not equally predisposed to both good and evil. A will defiled by sin is not considered as "free" as it once was because it is bound by material things, which could be lost or be difficult to part with, resulting in unhappiness. Sin impairs free will, while grace restores it. Only a will that was once free can be subjected to sin's corruption. After 412, Augustine changed his theology, teaching that humanity had no free will to believe in Christ but only a free will to sin: "I in fact strove on behalf of the free choice of the human 'will,' but God's grace conquered" (Retract. 2.1). The early Christians opposed the deterministic views (e.g., fate) of Stoics, Gnostics, and Manichaeans prevalent in the first four centuries. Christians championed the concept of a relational God who interacts with humans rather than a Stoic or Gnostic God who unilaterally foreordained every event (yet Stoics still claimed to teach free will). Patristics scholar Ken Wilson argues that every early Christian author with extant writings who wrote on the topic prior to Augustine of Hippo (412) advanced human free choice rather than a deterministic God. According to Wilson, Augustine taught traditional free choice until 412, when he reverted to his earlier Manichaean and Stoic deterministic training when battling the Pelagians. Only a few Christians accepted Augustine's view of free will until the Protestant Reformation when both Luther and Calvin embraced Augustine's deterministic teachings wholeheartedly. The Catholic Church considers Augustine's teaching to be consistent with free will. He often said that anyone can be saved if they wish. While God knows who will and will not be saved, with no possibility for the latter to be saved in their lives, this knowledge represents God's perfect knowledge of how humans will freely choose their destinies. Sociology, morals and ethics Natural law Augustine was among the earliest to examine the legitimacy of the laws of man, and attempt to define the boundaries of what laws and rights occur naturally, instead of being arbitrarily imposed by mortals. All who have wisdom and conscience, he concludes, are able to use reason to recognize the lex naturalis, natural law. Mortal law should not attempt to force people to do what is right or avoid what is wrong, but simply to remain just. Therefore "an unjust law is no law at all". People are not obligated to obey laws that are unjust, those that their conscience and reason tell them violate natural law and rights. Slavery Augustine led many clergy under his authority at Hippo to free their slaves as "pious and holy" act. He boldly wrote a letter urging the emperor to set up a new law against slave traders and was very much concerned about the sale of children. Christian emperors of his time for 25 years had permitted the sale of children, not because they approved of the practice, but as a way of preventing infanticide when parents were unable to care for a child. Augustine noted that the tenant farmers in particular were driven to hire out or to sell their children as a means of survival. In his book, The City of God, he presents the development of slavery as a product of sin and as contrary to God's divine plan. He wrote that God "did not intend that this rational creature, who was made in his image, should have dominion over anything but the irrational creation – not man over man, but man over the beasts". Thus he wrote that righteous men in primitive times were made shepherds of cattle, not kings over men. "The condition of slavery is the result of sin", he declared. In The City of God, Augustine wrote he felt the existence of slavery was a punishment for the existence of sin, even if an individual enslaved person committed no sin meriting punishment. He wrote: "Slavery is, however, penal, and is appointed by that law which enjoins the preservation of the natural order and forbids its disturbance." Augustine believed slavery did more harm to the slave owner than the enslaved person himself: "the lowly position does as much good to the servant as the proud position does harm to the master." Augustine proposes as a solution to sin a type of cognitive reimagining of one's situation, where slaves "may themselves make their slavery in some sort free, by serving not in crafty fear, but in faithful love," until the end of the world eradicated slavery for good: "until all unrighteousness pass away, and all principality and every human power be brought to nothing, and God be all in all." Jews Against certain Christian movements, some of which rejected the use of Hebrew Scripture, Augustine countered that God had chosen the Jews as a special people, and he considered the scattering of Jewish people by the Roman Empire to be a fulfilment of prophecy. He rejected homicidal attitudes, quoting part of the same prophecy, namely "Slay them not, lest they should at last forget Thy law" (Psalm 59:11). Augustine, who believed Jewish people would be converted to Christianity at "the end of time", argued God had allowed them to survive their dispersion as a warning to Christians; as such, he argued, they should be permitted to dwell in Christian lands. The sentiment sometimes attributed to Augustine that Christians should let the Jews "survive but not thrive" (it is repeated by author James Carroll in his book Constantine's Sword, for example) is apocryphal and is not found in any of his writings. Sexuality For Augustine, the evil of sexual immorality was not in the sexual act itself, but in the emotions that typically accompany it. In On Christian Doctrine Augustine contrasts love, which is enjoyment on account of God, and lust, which is not on account of God. Augustine claims that, following the Fall, sexual lust (concupiscentia) has become necessary for copulation (as required to stimulate male erection), sexual lust is an evil result of the Fall, and therefore, evil must inevitably accompany sexual intercourse (On marriage and concupiscence 1.19). Therefore, following the Fall, even marital sex carried out merely to procreate inevitably perpetuates evil (On marriage and concupiscence 1.27; A Treatise against Two Letters of the Pelagians 2.27). For Augustine, proper love exercises a denial of selfish pleasure and the subjugation of corporeal desire to God. The only way to avoid evil caused by sexual intercourse is to take the "better" way (Confessions 8.2) and abstain from marriage (On marriage and concupiscence 1.31). Sex within marriage is not, however, for Augustine a sin, although necessarily producing the evil of sexual lust. Based on the same logic, Augustine also declared the pious virgins raped during the sack of Rome to be innocent because they did not intend to sin nor enjoy the act. Before the Fall, Augustine believed sex was a passionless affair, "just like many a laborious work accomplished by the compliant operation of our other limbs, without any lascivious heat", that the seed "might be sown without any shameful lust, the genital members simply obeying the inclination of the will". After the Fall, by contrast, the penis cannot be controlled by mere will, subject instead to both unwanted impotence and involuntary erections: "Sometimes the urge arises unwanted; sometimes, on the other hand, it forsakes the eager lover, and desire grows cold in the body while burning in the mind... It arouses the mind, but it does not follow through what it has begun and arouse the body also" (City of God 14.16). Augustine censured those who try to prevent the creation of offspring when engaging in sexual relations, saying that though they may be nominally married they are not really, but are using that designation as a cloak for turpitude. When they allow their unwanted children to die of exposure, they unmask their sin. Sometimes they use drugs to produce sterility, or other means to try to destroy the fetus before they are born. Their marriage is not wedlock but debauchery. Augustine believed Adam and Eve had both already chosen in their hearts to disobey God's command not to eat of the Tree of Knowledge before Eve took the fruit, ate it, and gave it to Adam. Accordingly, Augustine did not believe Adam was any less guilty of sin. Augustine praises women and their role in society and in the Church. In his Tractates on the Gospel of John, Augustine, commenting on the Samaritan woman from John 4:1–42, uses the woman as a figure of the Church in agreement with the New Testament teaching that the Church is the bride of Christ. "Husbands, love your wives, as Christ loved the church and gave himself up for her." Pedagogy Augustine is considered an influential figure in the history of education. A work early in Augustine's writings is De Magistro (On the Teacher), which contains insights into education. His ideas changed as he found better directions or better ways of expressing his ideas. In the last years of his life, Augustine wrote his Retractationes (Retractations), reviewing his writings and improving specific texts. Henry Chadwick believes an accurate translation of "retractationes" may be "reconsiderations". Reconsiderations can be seen as an overarching theme of the way Augustine learned. Augustine's understanding of the search for understanding, meaning, and truth as a restless journey leaves room for doubt, development, and change. Augustine was a strong advocate of critical thinking skills. Because written works were limited during this time, spoken communication of knowledge was very important. His emphasis on the importance of community as a means of learning distinguishes his pedagogy from some others. Augustine believed dialectic is the best means for learning and that this method should serve as a model for learning encounters between teachers and students. Augustine's dialogue writings model the need for lively interactive dialogue among learners. He recommended adapting educational practices to fit the students' educational backgrounds: the student who has been well-educated by knowledgeable teachers; the student who has had no education; and the student who has had a poor education, but believes himself to be well-educated. If a student has been well educated in a wide variety of subjects, the teacher must be careful not to repeat what they have already learned, but to challenge the student with material they do not yet know thoroughly. With the student who has had no education, the teacher must be patient, willing to repeat things until the student understands, and sympathetic. Perhaps the most difficult student, however, is the one with an inferior education who believes he understands something when he does not. Augustine stressed the importance of showing this type of student the difference between "having words and having understanding" and of helping the student to remain humble with his acquisition of knowledge. Under the influence of Bede, Alcuin, and Rabanus Maurus, De catechizandis rudibus came to exercise an important role in the education of clergy at the monastic schools, especially from the eighth century onwards. Augustine believed students should be given an opportunity to apply learned theories to practical experience. Yet another of Augustine's major contributions to education is his study on the styles of teaching. He claimed there are two basic styles a teacher uses when speaking to the students. The mixed style includes complex and sometimes showy language to help students see the beautiful artistry of the subject they are studying. The grand style is not quite as elegant as the mixed style, but is exciting and heartfelt, with the purpose of igniting the same passion in the students' hearts. Augustine balanced his teaching philosophy with the traditional Bible-based practice of strict discipline. Augustine knew Latin and Ancient Greek. He had a long correspondence with St Jerome regarding the textual differences existing between the Hebrew Bible and the Greek Septuagint, concluding that the original Greek manuscripts resulted closely similar to the other Hebrew ones, and also that even the differences in the two original versions of the Holy Scripture could enlight its spiritual meaning so as to have been unitarily inspired by God. Coercion Augustine of Hippo had to deal with issues of violence and coercion throughout his entire career due largely to the Donatist-Catholic conflict. He is one of the very few authors in Antiquity who ever truly theoretically examined the ideas of religious freedom and coercion. Augustine handled the infliction of punishment and the exercise of power over law-breakers by analyzing these issues in ways similar to modern debates on penal reform. His teaching on coercion has "embarrassed his modern defenders and vexed his modern detractors," because it is seen as making him appear "to generations of religious liberals as le prince et patriarche de persecuteurs." Yet Brown asserts that, at the same time, Augustine becomes "an eloquent advocate of the ideal of corrective punishment" and reformation of the wrongdoer. Russell says Augustine's theory of coercion "was not crafted from dogma, but in response to a unique historical situation" and is, therefore, context-dependent, while others see it as inconsistent with his other teachings. The context During the Great Persecution, "When Roman soldiers came calling, some of the [Catholic] officials handed over the sacred books, vessels, and other church goods rather than risk legal penalties" over a few objects. Maureen Tilley says this was a problem by 305, that became a schism by 311, because many of the North African Christians had a long established tradition of a "physicalist approach to religion." The sacred scriptures were not simply books to them, but were the Word of God in physical form, therefore they saw handing over the Bible, and handing over a person to be martyred, as "two sides of the same coin." Those who cooperated with the authorities became known as traditores. The term originally meant one who hands over a physical object, but it came to mean "traitor". According to Tilley, after the persecution ended, those who had apostatized wanted to return to their positions in the church. The North African Christians, (the rigorists who became known as Donatists), refused to accept them. Catholics were more tolerant and wanted to wipe the slate clean. For the next 75 years, both parties existed, often directly alongside each other, with a double line of bishops for the same cities. Competition for the loyalty of the people included multiple new churches and violence. No one is exactly sure when the Circumcellions and the Donatists allied, but for decades, they fomented protests and street violence, accosted travellers and attacked random Catholics without warning, often doing serious and unprovoked bodily harm such as beating people with clubs, cutting off their hands and feet, and gouging out eyes. Augustine became coadjutor Bishop of Hippo in 395, and since he believed that conversion must be voluntary, his appeals to the Donatists were verbal. For several years, he used popular propaganda, debate, personal appeal, General Councils, appeals to the emperor and political pressure to bring the Donatists back into union with the Catholics, but all attempts failed. The harsh realities Augustine faced can be found in his Letter 28 written to bishop Novatus around 416. Donatists had attacked, cut out the tongue and cut off the hands of a Bishop Rogatus who had recently converted to Catholicism. An unnamed count of Africa had sent his agent with Rogatus, and he too had been attacked; the count was "inclined to pursue the matter." Russell says Augustine demonstrates a "hands on" involvement with the details of his bishopric, but at one point in the letter, he confesses he does not know what to do. "All the issues that plague him are there: stubborn Donatists, Circumcellion violence, the vacillating role of secular officials, the imperative to persuade, and his own trepidations." The empire responded to the civil unrest with the law and its enforcement, and thereafter, Augustine changed his mind about using verbal arguments alone. Instead, he came to support the state's use of coercion. Augustine did not believe the empire's enforcement would "make the Donatists more virtuous" but he did believe it would make them "less vicious." The theology The primary 'proof text' of what Augustine thought concerning coercion is from Letter 93, written in 408, as a reply to bishop Vincentius, of Cartenna (Mauretania, North Africa). This letter shows that both practical and biblical reasons led Augustine to defend the legitimacy of coercion. He confesses that he changed his mind because of "the ineffectiveness of dialogue and the proven efficacy of laws." He had been worried about false conversions if force was used, but "now," he says, "it seems imperial persecution is working." Many Donatists had converted. "Fear had made them reflect, and made them docile." Augustine continued to assert that coercion could not directly convert someone, but concluded it could make a person ready to be reasoned with. According to Mar Marcos, Augustine made use of several biblical examples to legitimize coercion, but the primary analogy in Letter 93 and in Letter 185, is the parable of the Great Feast in Luke 14.15–24 and its statement compel them to come in. Russell says, Augustine uses the Latin term cogo, instead of the compello of the Vulgate, since to Augustine, cogo meant to "gather together" or "collect" and was not simply "compel by physical force." In 1970, Robert Markus argued that, for Augustine, a degree of external pressure being brought for the purpose of reform was compatible with the exercise of free will. Russell asserts that Confessions 13 is crucial to understanding Augustine's thought on coercion; using Peter Brown's explanation of Augustine's view of salvation, he explains that Augustine's past, his own sufferings and "conversion through God's pressures," along with his biblical hermeneutics, is what led him to see the value in suffering for discerning truth. According to Russell, Augustine saw coercion as one among many conversion strategies for forming "a pathway to the inner person." In Augustine's view, there is such a thing as just and unjust persecution. Augustine explains that when the purpose of persecution is to lovingly correct and instruct, then it becomes discipline and is just. He said the church would discipline its people out of a loving desire to heal them, and that, "once compelled to come in, heretics would gradually give their voluntary assent to the truth of Christian orthodoxy." Frederick H. Russell describes this as "a pastoral strategy in which the church did the persecuting with the dutiful assistance of Roman authorities," adding that it is "a precariously balanced blend of external discipline and inward nurturance." Augustine placed limits on the use of coercion, recommending fines, imprisonment, banishment, and moderate floggings, preferring beatings with rods which was a common practice in the ecclesial courts. He opposed severity, maiming, and the execution of heretics. While these limits were mostly ignored by Roman authorities, Michael Lamb says that in doing this, "Augustine appropriates republican principles from his Roman predecessors..." and maintains his commitment to liberty, legitimate authority, and the rule of law as a constraint on arbitrary power. He continues to advocate holding authority accountable to prevent domination but affirms the state's right to act. Herbert A. Deane, on the other hand, says there is a fundamental inconsistency between Augustine's political thought and "his final position of approval of the use of political and legal weapons to punish religious dissidence" and others have seconded this view. Brown asserts that Augustine's thinking on coercion is more of an attitude than a doctrine, since it is "not in a state of rest," but is instead marked by "a painful and protracted attempt to embrace and resolve tensions." According to Russell, it is possible to see how Augustine himself had evolved from his earlier Confessions to this teaching on coercion and the latter's strong patriarchal nature: "Intellectually, the burden has shifted imperceptibly from discovering the truth to disseminating the truth." The bishops had become the church's elite with their own rationale for acting as "stewards of the truth." Russell points out that Augustine's views are limited to time and place and his own community, but later, others took what he said and applied it outside those parameters in ways Augustine never imagined or intended. Works Augustine was one of the most prolific Latin authors in terms of surviving works, and the list of his works consists of more than one hundred separate titles. They include apologetic works against the heresies of the Arians, Donatists, Manichaeans and Pelagians; texts on Christian doctrine, notably (On Christian Doctrine); exegetical works such as commentaries on Genesis, the Psalms and Paul's Letter to the Romans; many sermons and letters; and the Retractationes, a review of his earlier works which he wrote near the end of his life. Apart from those, Augustine is probably best known for his Confessions, which is a personal account of his earlier life, and for De civitate Dei (The City of God, consisting of 22 books), which he wrote to restore the confidence of his fellow Christians, which was badly shaken by the sack of Rome by the Visigoths in 410. His On the Trinity, in which he developed what has become known as the 'psychological analogy' of the Trinity, is also considered to be among his masterpieces, and arguably of more doctrinal importance than the Confessions or the City of God. He also wrote On Free Choice of the Will (De libero arbitrio), addressing why God gives humans free will that can be used for evil. Legacy In both his philosophical and theological reasoning, Augustine was greatly influenced by Stoicism, Platonism and Neoplatonism, particularly by the work of Plotinus, author of the Enneads, probably through the mediation of Porphyry and Victorinus (as Pierre Hadot has argued). Some Neoplatonic concepts are still visible in Augustine's early writings. His early and influential writing on the human will, a central topic in ethics, would become a focus for later philosophers such as Schopenhauer, Kierkegaard, and Nietzsche. He was also influenced by the works of Virgil (known for his teaching on language), and Cicero (known for his teaching on argument). In philosophy Philosopher Bertrand Russell was impressed by Augustine's meditation on the nature of time in the Confessions, comparing it favourably to Kant's version of the view that time is subjective. Catholic theologians generally subscribe to Augustine's belief that God exists outside of time in the "eternal present"; that time only exists within the created universe because only in space is time discernible through motion and change. His meditations on the nature of time are closely linked to his consideration of the human ability of memory. Frances Yates in her 1966 study The Art of Memory argues that a brief passage of the Confessions, 10.8.12, in which Augustine writes of walking up a flight of stairs and entering the vast fields of memory clearly indicates that the ancient Romans were aware of how to use explicit spatial and architectural metaphors as a mnemonic technique for organizing large amounts of information. Augustine's philosophical method, especially demonstrated in his Confessions, had a continuing influence on Continental philosophy throughout the 20th century. His descriptive approach to intentionality, memory, and language as these phenomena are experienced within consciousness and time anticipated and inspired the insights of modern phenomenology and hermeneutics. Edmund Husserl writes: "The analysis of time-consciousness is an age-old crux of descriptive psychology and theory of knowledge. The first thinker to be deeply sensitive to the immense difficulties to be found here was Augustine, who laboured almost to despair over this problem." Martin Heidegger refers to Augustine's descriptive philosophy at several junctures in his influential work Being and Time. Hannah Arendt began her philosophical writing with a dissertation on Augustine's concept of love, Der Liebesbegriff bei Augustin (1929): "The young Arendt attempted to show that the philosophical basis for vita socialis in Augustine can be understood as residing in neighbourly love, grounded in his understanding of the common origin of humanity." Jean Bethke Elshtain in Augustine and the Limits of Politics tried to associate Augustine with Arendt in their concept of evil: "Augustine did not see evil as glamorously demonic but rather as absence of good, something which paradoxically is really nothing. Arendt ... envisioned even the extreme evil which produced the Holocaust as merely banal [in Eichmann in Jerusalem]." Augustine's philosophical legacy continues to influence contemporary critical theory through the contributions and inheritors of these 20th-century figures. Seen from a historical perspective, there are three main perspectives on the political thought of Augustine: first, political Augustinianism; second, Augustinian political theology; and third, Augustinian political theory. In theology Thomas Aquinas was influenced heavily by Augustine. On the topic of original sin, Aquinas proposed a more optimistic view of man than that of Augustine in that his conception leaves to the reason, will, and passions of fallen man their natural powers even after the Fall, without "supernatural gifts". While in his pre-Pelagian writings Augustine taught that Adam's guilt as transmitted to his descendants much enfeebles, though does not destroy, the freedom of their will, Protestant reformers Martin Luther and John Calvin affirmed that Original Sin completely destroyed liberty (see total depravity). According to Leo Ruickbie, Augustine's arguments against magic, differentiating it from a miracle, were crucial in the early Church's fight against paganism and became a central thesis in the later denunciation of witches and witchcraft. According to Professor Deepak Lal, Augustine's vision of the heavenly city has influenced the secular projects and traditions of the Enlightenment, Marxism, Freudianism and eco-fundamentalism. Post-Marxist philosophers Antonio Negri and Michael Hardt rely heavily on Augustine's thoughts, particularly The City of God, in their book of political philosophy Empire. Augustine has influenced many modern-day theologians and authors such as John Piper. Hannah Arendt, an influential 20th-century political theorist, wrote her doctoral dissertation in philosophy on Augustine, and continued to rely on his thought throughout her career. Ludwig Wittgenstein extensively quotes Augustine in Philosophical Investigations for his approach to language, both admiringly, and as a sparring partner to develop his own ideas, including an extensive opening passage from the Confessions. Contemporary linguists have argued that Augustine has significantly influenced the thought of Ferdinand de Saussure, who did not 'invent' the modern discipline of semiotics, but rather built upon Aristotelian and Neoplatonic knowledge from the Middle Ages, via an Augustinian connection: "as for the constitution of Saussurian semiotic theory, the importance of the Augustinian thought contribution (correlated to the Stoic one) has also been recognized. Saussure did not do anything but reform an ancient theory in Europe, according to the modern conceptual exigencies." In his autobiographical book Milestones, Pope Benedict XVI claims Augustine as one of the deepest influences in his thought. Oratorio, music Marc-Antoine Charpentier, Motet "Pour St Augustin mourant", H.419, for 2 voices and contino (1687), and "Pour St Augustin", H.307, for 2 voices and continuo (1670s). Much of Augustine's conversion is dramatized in the oratorio La conversione di Sant'Agostino (1750) composed by Johann Adolph Hasse. The libretto for this oratorio, written by Duchess Maria Antonia of Bavaria, draws upon the influence of Metastasio (the finished libretto having been edited by him) and is based on an earlier five-act play Idea perfectae conversionis dive Augustinus written by the Jesuit priest Franz Neumayr. In the libretto Augustine's mother Monica is presented as a prominent character that is worried that Augustine might not convert to Christianity. As Dr. Andrea Palent says: Throughout the oratorio Augustine shows his willingness to turn to God, but the burden of the act of conversion weighs heavily on him. This is displayed by Hasse through extended recitative passages. In popular art In his poem "Confessional", Frank Bidart compares the relationship between Augustine and his mother, Saint Monica, to the relationship between the poem's speaker and his mother. In the 2010 TV miniseries Restless Heart: The Confessions of Saint Augustine, Augustine is played by Matteo Urzia (aged 15), Alessandro Preziosi (aged 25) and Franco Nero (aged 76). English pop/rock musician, singer and songwriter Sting wrote a song related to Saint Augustine entitled "Saint Augustine in Hell" which was part of his fourth solo studio album Ten Summoner's Tales released in March 1993. See also Cogito, ergo sum Rule of Saint Augustine References Notes Citations Cited sources Further reading Green, Bradley G. Colin Gunton and the Failure of Augustine: The Theology of Colin Gunton in the Light of Augustine , James Clarke and Co. (2012), Miles, Margaret R. (2012). Augustine and the Fundamentalist's Daughter , Lutterworth Press, . . Règle de St. Augustin pour les religieuses de son ordre; et Constitutions de la Congrégation des Religieuses du Verbe-Incarné et du Saint-Sacrament (Lyon: Chez Pierre Guillimin, 1662), pp. 28–29. Cf. later edition published at Lyon (Chez Briday, Libraire,1962), pp. 22–24. English edition, (New York: Schwartz, Kirwin, and Fauss, 1893), pp. 33–35. External links General "Complete Works of Saint Augustine (in English)" from Augustinus.it "Complete Works of Saint Augustine (in French)" from Abbey Saint Benoît de Port-Valais "Complete Works of Saint Augustine (in Spanish)" from Mercaba, Catholic leaders' website "Works by Saint Augustine" from CCEL.org Works by Augustine at Perseus Digital Library "St. Augustine, Bishop and Confessor, Doctor of the Church", Butler's Lives of the Saints Augustine of Hippo edited by James J. O'Donnell – texts, translations, introductions, commentaries, etc. Augustine's Theory of Knowledge "Saint Augustine of Hippo" at the Christian Iconography website "The Life of St. Austin, or Augustine, Doctor" from the Caxton translation of the Golden Legend David Lindsay: Saint Augustine – Doctor Gratiae St. Augustine – A Male Chauvinist? , Fr. Edmund Hill, OP. Talk given to the Robert Hugh Benson Graduate Society at Fisher House, Cambridge, on 22 November 1994. St. Augustine Timeline – Church History Timelines Giovanni Domenico Giulio: Nachtgedanken des heiligen Augustinus. Trier 1843 Bibliography Augustine of Hippo at EarlyChurch.org.uk – extensive bibliography and on-line articles Bibliography on St. Augustine – Started by T.J. van Bavel O.S.A., continued at the Augustinian historical Institute in Louvain, Belgium Works by Augustine St. Augustine at the Christian Classics Ethereal Library Augustine against Secundinus in English. Aurelius Augustinus at "IntraText Digital Library" – texts in several languages, with concordance and frequency list Augustinus.it – Latin, Spanish and Italian texts Sanctus Augustinus at Documenta Catholica Omnia – Latin City of God, Confessions, Enchiridion, Doctrine audio books Digitized manuscript created in France between 1275 and 1325 with extract of Augustine of Hippo works at SOMNI Expositio Psalmorum beati Augustini – digitized codex created between 1150 and 1175, also known as "Enarrationes in Psalmos. 1–83", at SOMNI Aurelii Agustini Hipponae episcopi super loannem librum – digitized codex created in 1481; his sermons about John's Gospel at SOMNI Sententiae ex omnibus operibus Divi Augustini decerptae – digitized codex created in 1539; at Library of the Hungarian Academy of Sciences Lewis E 19 In epistolam Johannis ad Parthos (Sermons on the first epistle of Saint John) at OPenn Lewis E 21 De sermone domini in monte habito (On the sermon on the mount) and other treatises; De superbia (On pride) and other treatises; Expositio dominice orationis (Exposition on the lord's prayer) at OPenn Lewis E 22 Enarrationes in psalmos (Expositions on the psalms); Initials (ABC); Prayer at OPenn Lewis E 23 Sermons at OPenn Lewis E 213 Rule of Saint Augustine; Sermon on Matthew 25:6 at OPenn Lehigh Codex 3 Bifolium from De civitate Dei, Book 22 at OPenn Biography and criticism Order of St Augustine Blessed Augustine of Hippo: His Place in the Orthodox Church Augustine's World: An Introduction to His Speculative Philosophy by Donald Burt, OSA, member of the Augustinian Order, Villanova University Tabula in librum Sancti Augustini De civitate Dei by Robert Kilwardby, digitized manuscript of 1464 at SOMNI 354 births 430 deaths 4th-century Berber people 4th-century Christian theologians 4th-century philosophers 4th-century Romans 4th-century writers in Latin 5th-century Berber people 5th-century Christian saints 5th-century Christian theologians 5th-century philosophers 5th-century Romans 5th-century writers in Latin African philosophers Amillennialism Ancient Roman rhetoricians Christian anti-Gnosticism Augustinus Augustinian philosophers Autobiographers Berber Christians Burials at San Pietro in Ciel d'Oro Christian apologists Christian ethicists Church Fathers Doctors of the Church Epistemologists Letter writers in Latin Mariology Neoplatonists Numidian saints Rationalists 4th-century bishops in Roman North Africa Philosophers of war Saints from Roman Africa (province) Sermon writers Systematic theologians Catholic philosophers Ancient Roman philosophers Ancient Roman Christian mystics 5th-century bishops in Roman North Africa Former Manichaeans Christian saints Eastern Orthodox saints Eastern Catholic saints Ancient Roman Catholic saints Anglican saints Translation theorists Natural law ethicists Christian anthropologists

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https://en.wikipedia.org/wiki/Acting

Acting

Acting is an activity in which a story is told by means of its enactment by an actor who adopts a character—in theatre, television, film, radio, or any other medium that makes use of the mimetic mode. Acting involves a broad range of skills, including a well-developed imagination, emotional facility, physical expressivity, vocal projection, clarity of speech, and the ability to interpret drama. Acting also demands an ability to employ dialects, accents, improvisation, observation and emulation, mime, and stage combat. Many actors train at length in specialist programs or colleges to develop these skills. The vast majority of professional actors have undergone extensive training. Actors and actresses will often have many instructors and teachers for a full range of training involving singing, scene-work, audition techniques, and acting for camera. Most early sources in the West that examine the art of acting (, hypokrisis) discuss it as part of rhetoric. History One of the first known actors was an ancient Greek called Thespis of Icaria in Athens. Writing two centuries after the event, Aristotle in his Poetics () suggests that Thespis stepped out of the dithyrambic chorus and addressed it as a separate character. Before Thespis, the chorus narrated (for example, "Dionysus did this, Dionysus said that"). When Thespis stepped out from the chorus, he spoke as if he were the character (for example, "I am Dionysus, I did this"). To distinguish between these different modes of storytelling—enactment and narration —Aristotle uses the terms "mimesis" (via enactment) and "diegesis" (via narration). From Thespis' name derives the word "thespian". Training Conservatories and drama schools typically offer two- to four-year training on all aspects of acting. Universities mostly offer three- to four-year programs, in which a student is often able to choose to focus on acting, whilst continuing to learn about other aspects of theatre. Schools vary in their approach, but in North America the most popular method taught derives from the 'system' of Konstantin Stanislavski, which was developed and popularised in America as method acting by Lee Strasberg, Stella Adler, Sanford Meisner, and others. Other approaches may include a more physically based orientation, such as that promoted by theatre practitioners as diverse as Anne Bogart, Jacques Lecoq, Jerzy Grotowski, or Vsevolod Meyerhold. Classes may also include psychotechnique, mask work, physical theatre, improvisation, and acting for camera. Regardless of a school's approach, students should expect intensive training in textual interpretation, voice, and movement. Applications to drama programmes and conservatories usually involve extensive auditions. Anybody over the age of 18 can usually apply. Training may also start at a very young age. Acting classes and professional schools targeted at under-18s are widespread. These classes introduce young actors to different aspects of acting and theatre, including scene study. Increased training and exposure to public speaking allows humans to maintain calmer and more relaxed physiologically. By measuring a public speaker's heart rate maybe one of the easiest ways to judge shifts in stress as the heart rate increases with anxiety . As actors increase performances, heart rate and other evidence of stress can decrease. This is very important in training for actors, as adaptive strategies gained from increased exposure to public speaking can regulate implicit and explicit anxiety. By attending an institution with a specialization in acting, increased opportunity to act will lead to more relaxed physiology and decrease in stress and its effects on the body. These effects can vary from hormonal to cognitive health that can impact quality of life and performance Improvisation Some classical forms of acting involve a substantial element of improvised performance. Most notable is its use by the troupes of the commedia dell'arte, a form of masked comedy that originated in Italy. Improvisation as an approach to acting formed an important part of the Russian theatre practitioner Konstantin Stanislavski's 'system' of actor training, which he developed from the 1910s onwards. Late in 1910, the playwright Maxim Gorky invited Stanislavski to join him in Capri, where they discussed training and Stanislavski's emerging "grammar" of acting. Inspired by a popular theatre performance in Naples that utilised the techniques of the commedia dell'arte, Gorky suggested that they form a company, modelled on the medieval strolling players, in which a playwright and group of young actors would devise new plays together by means of improvisation. Stanislavski would develop this use of improvisation in his work with his First Studio of the Moscow Art Theatre. Stanislavski's use was extended further in the approaches to acting developed by his students, Michael Chekhov and Maria Knebel. In the United Kingdom, the use of improvisation was pioneered by Joan Littlewood from the 1930s onwards and, later, by Keith Johnstone and Clive Barker. In the United States, it was promoted by Viola Spolin, after working with Neva Boyd at a Hull House in Chicago, Illinois (Spolin was Boyd's student from 1924 to 1927). Like the British practitioners, Spolin felt that playing games was a useful means of training actors and helped to improve an actor's performance. With improvisation, she argued, people may find expressive freedom, since they do not know how an improvised situation will turn out. Improvisation demands an open mind in order to maintain spontaneity, rather than pre-planning a response. A character is created by the actor, often without reference to a dramatic text, and a drama is developed out of the spontaneous interactions with other actors. This approach to creating new drama has been developed most substantially by the British filmmaker Mike Leigh, in films such as Secrets & Lies (1996), Vera Drake (2004), Another Year (2010), and Mr. Turner (2014). Improvisation is also used to cover up if an actor or actress makes a mistake. Physiological effects Acting in front of an audience many times can cause "stage fright", a form of stress in which someone becomes anxious in front of an audience. This is common among actors, especially new actors, and can cause symptoms such as increased heart rate, increased blood pressure, and sweating. In a 2017 study on American university students, actors of various experience levels all showed similarly elevated heart rates throughout their performances; this agrees with previous studies on professional and amateur actors' heart rates. While all actors experienced stress, causing elevated heart rate, the more experienced actors displayed less heart rate variability than the less experienced actors in the same play. The more experienced actors experienced less stress while performing, and therefore had a smaller degree of variability than the less experienced, more stressed actors. The more experienced an actor is, the more stable their heart rate will be while performing, but will still experience elevated heart rates. Semiotics The semiotics of acting involves a study of the ways in which aspects of a performance come to operate for its audience as signs. This process largely involves the production of meaning, whereby elements of an actor's performance acquire significance, both within the broader context of the dramatic action and in the relations each establishes with the real world. Following the ideas proposed by the Surrealist theorist Antonin Artaud, however, it may also be possible to understand communication with an audience that occurs 'beneath' significance and meaning (which the semiotician Félix Guattari described as a process involving the transmission of "a-signifying signs"). In his The Theatre and its Double (1938), Artaud compared this interaction to the way in which a snake charmer communicates with a snake, a process which he identified as "mimesis"—the same term that Aristotle in his Poetics () used to describe the mode in which drama communicates its story, by virtue of its embodiment by the actor enacting it, as distinct from "diegesis", or the way in which a narrator may describe it. These "vibrations" passing from the actor to the audience may not necessarily precipitate into significant elements as such (that is, consciously perceived "meanings"), but rather may operate by means of the circulation of "affects". The approach to acting adopted by other theatre practitioners involve varying degrees of concern with the semiotics of acting. Konstantin Stanislavski, for example, addresses the ways in which an actor, building on what he calls the "experiencing" of a role, should also shape and adjust a performance in order to support the overall significance of the drama—a process that he calls establishing the "perspective of the role". The semiotics of acting plays a far more central role in Bertolt Brecht's epic theatre, in which an actor is concerned to bring out clearly the socio historical significance of behaviour and action by means of specific performance choices—a process that he describes as establishing the "not/but" element in a performed physical "gestus" within context of the play's overal "Fabel". Eugenio Barba argues that actors ought not to concern themselves with the significance of their performance behaviour; this aspect is the responsibility, he claims, of the director, who weaves the signifying elements of an actor's performance into the director's dramaturgical "montage". The theatre semiotician Patrice Pavis, alluding to the contrast between Stanislavski's 'system' and Brecht's demonstrating performer—and, beyond that, to Denis Diderot's foundational essay on the art of acting, Paradox of the Actor (–78)—argues that: Elements of a semiotics of acting include the actor's gestures, facial expressions, intonation and other vocal qualities, rhythm, and the ways in which these aspects of an individual performance relate to the drama and the theatrical event (or film, television programme, or radio broadcast, each of which involves different semiotic systems) considered as a whole. A semiotics of acting recognises that all forms of acting involve conventions and codes by means of which performance behaviour acquires significance—including those approaches, such as Stanislvaski's or the closely related method acting developed in the United States, that offer themselves as "a natural kind of acting that can do without conventions and be received as self-evident and universal." Pavis goes on to argue that: The conventions that govern acting in general are related to structured forms of play, which involve, in each specific experience, "rules of the game." This aspect was first explored by Johan Huizinga (in Homo Ludens, 1938) and Roger Caillois (in Man, Play and Games, 1958). Caillois, for example, distinguishes four aspects of play relevant to acting: mimesis (simulation), agon (conflict or competition), alea (chance), and ilinx (vertigo, or "vertiginous psychological situations" involving the spectator's identification or catharsis). This connection with play as an activity was first proposed by Aristotle in his Poetics, in which he defines the desire to imitate in play as an essential part of being human and our first means of learning as children: This connection with play also informed the words used in English (as was the analogous case in many other European languages) for drama: the word "play" or "game" (translating the Anglo-Saxon plèga or Latin ludus) was the standard term used until William Shakespeare's time for a dramatic entertainment—just as its creator was a "play-maker" rather than a "dramatist", the person acting was known as a "player", and, when in the Elizabethan era specific buildings for acting were built, they was known as "play-houses" rather than "theatres." Resumes and auditions Actors and actresses need to make a resume when applying for roles. The acting resume is very different from a normal resume; it is generally shorter, with lists instead of paragraphs, and it should have a head shot on the back. Sometimes, a resume also contains a short 30 second to 1 minute reel displaying the actors ability's, so that the casting director can see your previous performances, if any. An actor's resume should list projects they have acted in before such as plays, movies, or shows, as well as special skills and their contact information. Auditioning is the act of performing either a monologue or sides (lines for one character) as sent by the casting director. Auditioning entails showing the actor's skills to present themselves as a different person; it may be as brief as two minutes. For theater auditions it can be longer than two minutes, or they may perform more than one monologue, as each casting director can have different requirements for actors. Actors should go to auditions dressed for the part, to make it easier for the casting director to visualize them as the character. For television or film they will have to undergo more than one audition. Oftentimes actors are called into another audition at the last minute, and are sent the sides either that morning or the night before. Auditioning can be a stressful part of acting, especially if one has not been trained to audition. Rehearsal Rehearsal is a process in which actors prepare and practice a performance, exploring the vicissitudes of conflict between characters, testing specific actions in the scene, and finding means to convey a particular sense. Some actors continue to rehearse a scene throughout the run of a show in order to keep the scene fresh in their minds and exciting for the audience. Audience A critical audience with evaluative spectators is known to induce stress on actors during performance, (see Bode & Brutten). Being in front of an audience sharing a story will makes the actors intensely vulnerable. Shockingly, an actor will typically rate the quality of their performance higher than their spectators. Heart rates are generally always higher during a performance with an audience when compared to rehearsal, however what's interesting is that this audience also seems to induce a higher quality of performance. Simply put, while public performances cause extremely high stress levels in actors (more so amateur ones), the stress actually improves the performance, supporting the idea of "positive stress in challenging situations" Heart rate Depending on what an actor is doing, his or her heart rate will vary. This is the body's way of responding to stress. Prior to a show one will see an increase in heart rate due to anxiety. While performing an actor has an increased sense of exposure which will increase performance anxiety and the associated physiological arousal, such as heart rate. Heart rates increases more during shows compared to rehearsals because of the increased pressure, which is due to the fact that a performance has a potentially greater impact on an actors career. After the show a decrease in the heart rate due to the conclusion of the stress inducing activity can be seen. Often the heart rate will return to normal after the show or performance is done; however, during the applause after the performance there is a rapid spike in heart rate. This can be seen not only in actors but also with public speaking and musicians. Stress There is a correlation between heart-rate and stress when actors' are performing in front of an audience. Actors claim that having an audience has no change in their stress level, but as soon as they come on stage their heart-rate rises quickly. A 2017 study done in an American University looking at actors' stress by measuring heart-rate showed individual heart-rates rose right before the performance began for those actors opening. There are many factors that can add to an actors' stress. For example, length of monologues, experience level, and actions done on stage including moving the set. Throughout the performance heart-rate rises the most before an actor is speaking. The stress and thus heart-rate of the actor then drops significantly at the end of a monologue, big action scene, or performance. See also Biomechanics Meisner technique Method acting Presentational and representational acting Stanislavski's system Viewpoints Lists of actors References Sources Boleslavsky, Richard. 1933 Acting: the First Six Lessons. New York: Theatre Arts, 1987. . Benedetti, Jean. 1999. Stanislavski: His Life and Art. Revised edition. Original edition published in 1988. London: Methuen. . Brustein, Robert. 2005. Letters to a Young Actor New York: Basic Books. . Csapo, Eric, and William J. Slater. 1994. The Context of Ancient Drama. Ann Arbor: University of Michigan Press. . Elam, Keir. 1980. The Semiotics of Theatre and Drama. New Accents Ser. London and New York: Methuen. . Hagen, Uta and Haskel Frankel. 1973. Respect for Acting. New York: Macmillan. . Halliwell, Stephen, ed. and trans. 1995. Aristotle Poetics. Loeb Classical Library ser. Aristotle vol. 23. Cambridge, MA: Harvard University Press. . Hodge, Alison, ed. 2000. Twentieth Century Actor Training. London and New York: Routledge. . Magarshack, David. 1950. Stanislavsky: A Life. London and Boston: Faber, 1986. . Meisner, Sanford, and Dennis Longwell. 1987. Sanford Meisner on Acting. New York: Vintage. . Pavis, Patrice. 1998. Dictionary of the Theatre: Terms, Concepts, and Analysis. Trans. Christine Shantz. Toronto and Buffalo: University of Toronto Press. . Stanislavski, Konstantin. 1938. An Actor's Work: A Student's Diary. Trans. and ed. Jean Benedetti. London and New York: Routledge, 2008. . Stanislavski, Konstantin. 1957. An Actor's Work on a Role. Trans. and ed. Jean Benedetti. London and New York: Routledge, 2010. . Wickham, Glynne. 1959. Early English Stages: 1300—1660. Vol. 1. London: Routledge. Wickham, Glynne. 1969. Shakespeare's Dramatic Heritage: Collected Studies in Mediaeval, Tudor and Shakespearean Drama. London: Routledge. . Wickham, Glynne. 1981. Early English Stages: 1300—1660. Vol. 3. London: Routledge. . Zarrilli, Phillip B., ed. 2002. Acting (Re)Considered: A Theoretical and Practical Guide. Worlds of Performance Ser. 2nd edition. London and New York: Routledge. . External links Collection: "History of Acting: Gestural Acting and Realism" from the University of Michigan Museum of Art Role-playing

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https://en.wikipedia.org/wiki/Avionics

Avionics

Avionics (a blend of aviation and electronics) are the electronic systems used on aircraft. Avionic systems include communications, navigation, the display and management of multiple systems, and the hundreds of systems that are fitted to aircraft to perform individual functions. These can be as simple as a searchlight for a police helicopter or as complicated as the tactical system for an airborne early warning platform. History The term "avionics" was coined in 1949 by Philip J. Klass, senior editor at Aviation Week & Space Technology magazine as a portmanteau of "aviation electronics". Radio communication was first used in aircraft just prior to World War I. The first airborne radios were in zeppelins, but the military sparked development of light radio sets that could be carried by heavier-than-air craft, so that aerial reconnaissance biplanes could report their observations immediately in case they were shot down. The first experimental radio transmission from an airplane was conducted by the U.S. Navy in August 1910. The first aircraft radios transmitted by radiotelegraphy, so they required two-seat aircraft with a second crewman to tap on a telegraph key to spell out messages by Morse code. During World War I, AM voice two way radio sets were made possible in 1917 by the development of the triode vacuum tube, which were simple enough that the pilot in a single seat aircraft could use it while flying. Radar, the central technology used today in aircraft navigation and air traffic control, was developed by several nations, mainly in secret, as an air defense system in the 1930s during the runup to World War II. Many modern avionics have their origins in World War II wartime developments. For example, autopilot systems that are commonplace today began as specialized systems to help bomber planes fly steadily enough to hit precision targets from high altitudes. Britain's 1940 decision to share its radar technology with its U.S. ally, particularly the magnetron vacuum tube, in the famous Tizard Mission, significantly shortened the war. Modern avionics is a substantial portion of military aircraft spending. Aircraft like the F-15E and the now retired F-14 have roughly 20 percent of their budget spent on avionics. Most modern helicopters now have budget splits of 60/40 in favour of avionics. The civilian market has also seen a growth in cost of avionics. Flight control systems (fly-by-wire) and new navigation needs brought on by tighter airspaces, have pushed up development costs. The major change has been the recent boom in consumer flying. As more people begin to use planes as their primary method of transportation, more elaborate methods of controlling aircraft safely in these high restrictive airspaces have been invented. Modern avionics Avionics plays a heavy role in modernization initiatives like the Federal Aviation Administration's (FAA) Next Generation Air Transportation System project in the United States and the Single European Sky ATM Research (SESAR) initiative in Europe. The Joint Planning and Development Office put forth a roadmap for avionics in six areas: Published Routes and Procedures – Improved navigation and routing Negotiated Trajectories – Adding data communications to create preferred routes dynamically Delegated Separation – Enhanced situational awareness in the air and on the ground LowVisibility/CeilingApproach/Departure – Allowing operations with weather constraints with less ground infrastructure Surface Operations – To increase safety in approach and departure ATM Efficiencies – Improving the air traffic management (ATM) process Market The Aircraft Electronics Association reports $1.73 billion avionics sales for the first three quarters of 2017 in business and general aviation, a 4.1% yearly improvement: 73.5% came from North America, forward-fit represented 42.3% while 57.7% were retrofits as the U.S. deadline of January 1, 2020 for mandatory ADS-B out approach. Aircraft avionics The cockpit of an aircraft is a typical location for avionic equipment, including control, monitoring, communication, navigation, weather, and anti-collision systems. The majority of aircraft power their avionics using 14- or 28‑volt DC electrical systems; however, larger, more sophisticated aircraft (such as airliners or military combat aircraft) have AC systems operating at 115 volts 400 Hz, AC. There are several major vendors of flight avionics, including The Boeing Company, Panasonic Avionics Corporation, Honeywell (which now owns Bendix/King), Universal Avionics Systems Corporation, Rockwell Collins (now Collins Aerospace), Thales Group, GE Aviation Systems, Garmin, Raytheon, Parker Hannifin, UTC Aerospace Systems (now Collins Aerospace), Selex ES (now Leonardo S.p.A.), Shadin Avionics, and Avidyne Corporation. International standards for avionics equipment are prepared by the Airlines Electronic Engineering Committee (AEEC) and published by ARINC. Communications Communications connect the flight deck to the ground and the flight deck to the passengers. On‑board communications are provided by public-address systems and aircraft intercoms. The VHF aviation communication system works on the airband of 118.000 MHz to 136.975 MHz. Each channel is spaced from the adjacent ones by 8.33 kHz in Europe, 25 kHz elsewhere. VHF is also used for line of sight communication such as aircraft-to-aircraft and aircraft-to-ATC. Amplitude modulation (AM) is used, and the conversation is performed in simplex mode. Aircraft communication can also take place using HF (especially for trans-oceanic flights) or satellite communication. Navigation Air navigation is the determination of position and direction on or above the surface of the Earth. Avionics can use satellite navigation systems (such as GPS and WAAS), inertial navigation system (INS), ground-based radio navigation systems (such as VOR or LORAN), or any combination thereof. Some navigation systems such as GPS calculate the position automatically and display it to the flight crew on moving map displays. Older ground-based Navigation systems such as VOR or LORAN requires a pilot or navigator to plot the intersection of signals on a paper map to determine an aircraft's location; modern systems calculate the position automatically and display it to the flight crew on moving map displays. Monitoring The first hints of glass cockpits emerged in the 1970s when flight-worthy cathode ray tube (CRT) screens began to replace electromechanical displays, gauges and instruments. A "glass" cockpit refers to the use of computer monitors instead of gauges and other analog displays. Aircraft were getting progressively more displays, dials and information dashboards that eventually competed for space and pilot attention. In the 1970s, the average aircraft had more than 100 cockpit instruments and controls. Glass cockpits started to come into being with the Gulfstream G‑IV private jet in 1985. One of the key challenges in glass cockpits is to balance how much control is automated and how much the pilot should do manually. Generally they try to automate flight operations while keeping the pilot constantly informed. Aircraft flight-control system Aircraft have means of automatically controlling flight. Autopilot was first invented by Lawrence Sperry during World War I to fly bomber planes steady enough to hit accurate targets from 25,000 feet. When it was first adopted by the U.S. military, a Honeywell engineer sat in the back seat with bolt cutters to disconnect the autopilot in case of emergency. Nowadays most commercial planes are equipped with aircraft flight control systems in order to reduce pilot error and workload at landing or takeoff. The first simple commercial auto-pilots were used to control heading and altitude and had limited authority on things like thrust and flight control surfaces. In helicopters, auto-stabilization was used in a similar way. The first systems were electromechanical. The advent of fly-by-wire and electro-actuated flight surfaces (rather than the traditional hydraulic) has increased safety. As with displays and instruments, critical devices that were electro-mechanical had a finite life. With safety critical systems, the software is very strictly tested. Fuel Systems Fuel Quantity Indication System (FQIS) monitors the amount of fuel aboard. Using various sensors, such as capacitance tubes, temperature sensors, densitometers & level sensors, the FQIS computer calculates the mass of fuel remaining on board. Fuel Control and Monitoring System (FCMS) reports fuel remaining on board in a similar manner, but, by controlling pumps & valves, also manages fuel transfers around various tanks. Refuelling control to upload to a certain total mass of fuel and distribute it automatically. Transfers during flight to the tanks that feed the engines. E.G. from fuselage to wing tanks Centre of gravity control transfers from the tail (trim) tanks forward to the wings as fuel is expended Maintaining fuel in the wing tips (to help stop the wings bending due to lift in flight) & transferring to the main tanks after landing Controlling fuel jettison during an emergency to reduce the aircraft weight. Collision-avoidance systems To supplement air traffic control, most large transport aircraft and many smaller ones use a traffic alert and collision avoidance system (TCAS), which can detect the location of nearby aircraft, and provide instructions for avoiding a midair collision. Smaller aircraft may use simpler traffic alerting systems such as TPAS, which are passive (they do not actively interrogate the transponders of other aircraft) and do not provide advisories for conflict resolution. To help avoid controlled flight into terrain (CFIT), aircraft use systems such as ground-proximity warning systems (GPWS), which use radar altimeters as a key element. One of the major weaknesses of GPWS is the lack of "look-ahead" information, because it only provides altitude above terrain "look-down". In order to overcome this weakness, modern aircraft use a terrain awareness warning system (TAWS). Flight recorders Commercial aircraft cockpit data recorders, commonly known as "black boxes", store flight information and audio from the cockpit. They are often recovered from an aircraft after a crash to determine control settings and other parameters during the incident. Weather systems Weather systems such as weather radar (typically Arinc 708 on commercial aircraft) and lightning detectors are important for aircraft flying at night or in instrument meteorological conditions, where it is not possible for pilots to see the weather ahead. Heavy precipitation (as sensed by radar) or severe turbulence (as sensed by lightning activity) are both indications of strong convective activity and severe turbulence, and weather systems allow pilots to deviate around these areas. Lightning detectors like the Stormscope or Strikefinder have become inexpensive enough that they are practical for light aircraft. In addition to radar and lightning detection, observations and extended radar pictures (such as NEXRAD) are now available through satellite data connections, allowing pilots to see weather conditions far beyond the range of their own in-flight systems. Modern displays allow weather information to be integrated with moving maps, terrain, and traffic onto a single screen, greatly simplifying navigation. Modern weather systems also include wind shear and turbulence detection and terrain and traffic warning systems. In‑plane weather avionics are especially popular in Africa, India, and other countries where air-travel is a growing market, but ground support is not as well developed. Aircraft management systems There has been a progression towards centralized control of the multiple complex systems fitted to aircraft, including engine monitoring and management. Health and usage monitoring systems (HUMS) are integrated with aircraft management computers to give maintainers early warnings of parts that will need replacement. The integrated modular avionics concept proposes an integrated architecture with application software portable across an assembly of common hardware modules. It has been used in fourth generation jet fighters and the latest generation of airliners. Mission or tactical avionics Military aircraft have been designed either to deliver a weapon or to be the eyes and ears of other weapon systems. The vast array of sensors available to the military is used for whatever tactical means required. As with aircraft management, the bigger sensor platforms (like the E‑3D, JSTARS, ASTOR, Nimrod MRA4, Merlin HM Mk 1) have mission-management computers. Police and EMS aircraft also carry sophisticated tactical sensors. Military communications While aircraft communications provide the backbone for safe flight, the tactical systems are designed to withstand the rigors of the battle field. UHF, VHF Tactical (30–88 MHz) and SatCom systems combined with ECCM methods, and cryptography secure the communications. Data links such as Link 11, 16, 22 and BOWMAN, JTRS and even TETRA provide the means of transmitting data (such as images, targeting information etc.). Radar Airborne radar was one of the first tactical sensors. The benefit of altitude providing range has meant a significant focus on airborne radar technologies. Radars include airborne early warning (AEW), anti-submarine warfare (ASW), and even weather radar (Arinc 708) and ground tracking/proximity radar. The military uses radar in fast jets to help pilots fly at low levels. While the civil market has had weather radar for a while, there are strict rules about using it to navigate the aircraft. Sonar Dipping sonar fitted to a range of military helicopters allows the helicopter to protect shipping assets from submarines or surface threats. Maritime support aircraft can drop active and passive sonar devices (sonobuoys) and these are also used to determine the location of enemy submarines. Electro-optics Electro-optic systems include devices such as the head-up display (HUD), forward looking infrared (FLIR), infrared search and track and other passive infrared devices (Passive infrared sensor). These are all used to provide imagery and information to the flight crew. This imagery is used for everything from search and rescue to navigational aids and target acquisition. ESM/DAS Electronic support measures and defensive aids systems are used extensively to gather information about threats or possible threats. They can be used to launch devices (in some cases automatically) to counter direct threats against the aircraft. They are also used to determine the state of a threat and identify it. Aircraft networks The avionics systems in military, commercial and advanced models of civilian aircraft are interconnected using an avionics databus. Common avionics databus protocols, with their primary application, include: Aircraft Data Network (ADN): Ethernet derivative for Commercial Aircraft Avionics Full-Duplex Switched Ethernet (AFDX): Specific implementation of ARINC 664 (ADN) for Commercial Aircraft ARINC 429: Generic Medium-Speed Data Sharing for Private and Commercial Aircraft ARINC 664: See ADN above ARINC 629: Commercial Aircraft (Boeing 777) ARINC 708: Weather Radar for Commercial Aircraft ARINC 717: Flight Data Recorder for Commercial Aircraft ARINC 825: CAN bus for commercial aircraft (for example Boeing 787 and Airbus A350) Commercial Standard Digital Bus IEEE 1394b: Military Aircraft MIL-STD-1553: Military Aircraft MIL-STD-1760: Military Aircraft TTP – Time-Triggered Protocol: Boeing 787, Airbus A380, Fly-By-Wire Actuation Platforms from Parker Aerospace See also Astrionics, similar, for spacecraft Acronyms and abbreviations in avionics Avionics software Emergency locator beacon Emergency position-indicating radiobeacon station Integrated modular avionics Notes Further reading Avionics: Development and Implementation by Cary R. Spitzer (Hardcover – December 15, 2006) Principles of Avionics, 4th Edition by Albert Helfrick, Len Buckwalter, and Avionics Communications Inc. (Paperback – July 1, 2007) Avionics Training: Systems, Installation, and Troubleshooting by Len Buckwalter (Paperback – June 30, 2005) Avionics Made Simple, by Mouhamed Abdulla, Ph.D.; Jaroslav V. Svoboda, Ph.D. and Luis Rodrigues, Ph.D. (Coursepack – Dec. 2005 - ). External links Avionics in Commercial Aircraft Aircraft Electronics Association (AEA) Pilot's Guide to Avionics The Avionic Systems Standardisation Committee Space Shuttle Avionics Aviation Today Avionics magazine RAES Avionics homepage Aircraft instruments Spacecraft components Electronic engineering

2042

https://en.wikipedia.org/wiki/Alexander%20Grothendieck

Alexander Grothendieck

Alexander Grothendieck (; ; ; 28 March 1928 – 13 November 2014) was a French mathematician who became the leading figure in the creation of modern algebraic geometry. His research extended the scope of the field and added elements of commutative algebra, homological algebra, sheaf theory, and category theory to its foundations, while his so-called "relative" perspective led to revolutionary advances in many areas of pure mathematics. He is considered by many to be the greatest mathematician of the twentieth century. Grothendieck began his productive and public career as a mathematician in 1949. In 1958, he was appointed a research professor at the Institut des hautes études scientifiques (IHÉS) and remained there until 1970, when, driven by personal and political convictions, he left following a dispute over military funding. He received the Fields Medal in 1966 for advances in algebraic geometry, homological algebra, and K-theory. He later became professor at the University of Montpellier and, while still producing relevant mathematical work, he withdrew from the mathematical community and devoted himself to political and religious pursuits (first Buddhism and later, a more Catholic Christian vision). In 1991, he moved to the French village of Lasserre in the Pyrenees, where he lived in seclusion, still working tirelessly on mathematics and his philosophical and religious thoughts until his death in 2014. Life Family and childhood Grothendieck was born in Berlin to anarchist parents. His father, Alexander "Sascha" Schapiro (also known as Alexander Tanaroff), had Hasidic Jewish roots and had been imprisoned in Russia before moving to Germany in 1922, while his mother, Johanna "Hanka" Grothendieck, came from a Protestant German family in Hamburg and worked as a journalist. As teenagers, both of his parents had broken away from their early backgrounds. At the time of his birth, Grothendieck's mother was married to the journalist Johannes Raddatz and initially, his birth name was recorded as "Alexander Raddatz." That marriage was dissolved in 1929 and Schapiro acknowledged his paternity, but never married Hanka Grothendieck. Grothendieck had a maternal sibling, his half sister Maidi. Grothendieck lived with his parents in Berlin until the end of 1933, when his father moved to Paris to evade Nazism. His mother followed soon thereafter. Grothendieck was left in the care of Wilhelm Heydorn, a Lutheran pastor and teacher in Hamburg. According to Winfried Scharlau, during this time, his parents took part in the Spanish Civil War as non-combatant auxiliaries. However, others state that Schapiro fought in the anarchist militia. World War II In May 1939, Grothendieck was put on a train in Hamburg for France. Shortly afterward his father was interned in Le Vernet. He and his mother were then interned in various camps from 1940 to 1942 as "undesirable dangerous foreigners." The first camp was the Rieucros Camp, where his mother contracted the tuberculosis that would eventually cause her death in 1957. While there, Grothendieck managed to attend the local school, at Mendel. Once, he managed to escape from the camp, intending to assassinate Hitler. Later, his mother Hanka was transferred to the Gurs internment camp for the remainder of World War II. Grothendieck was permitted to live separated from his mother. In the village of Le Chambon-sur-Lignon, he was sheltered and hidden in local boarding houses or pensions, although he occasionally had to seek refuge in the woods during Nazi raids, surviving at times without food or water for several days. His father was arrested under the Vichy anti-Jewish legislation, and sent to the Drancy internment camp, and then handed over by the French Vichy government to the Germans to be sent to be murdered at the Auschwitz concentration camp in 1942. In Le Chambon, Grothendieck attended the Collège Cévenol (now known as the Le Collège-Lycée Cévenol International), a unique secondary school founded in 1938 by local Protestant pacifists and anti-war activists. Many of the refugee children hidden in Le Chambon attended Collège Cévenol, and it was at this school that Grothendieck apparently first became fascinated with mathematics. In 1990, for risking their lives to rescue Jews, the entire village was recognized as "Righteous Among the Nations". Studies and contact with research mathematics After the war, the young Grothendieck studied mathematics in France, initially at the University of Montpellier where at first he did not perform well, failing such classes as astronomy. Working on his own, he rediscovered the Lebesgue measure. After three years of increasingly independent studies there, he went to continue his studies in Paris in 1948. Initially, Grothendieck attended Henri Cartan's Seminar at , but he lacked the necessary background to follow the high-powered seminar. On the advice of Cartan and André Weil, he moved to the University of Nancy where two leading experts were working on Grothendieck's area of interest, topological vector spaces: Jean Dieudonné and Laurent Schwartz. The latter had recently won a Fields Medal. He showed his new student his latest paper; it ended with a list of 14 open questions, relevant for locally convex spaces. Grothendieck introduced new mathematical methods that enabled him to solve all of these problems within a few months. In Nancy, he wrote his dissertation under those two professors on functional analysis, from 1950 to 1953. At this time he was a leading expert in the theory of topological vector spaces. In 1953 he moved to the University of São Paulo in Brazil, where he immigrated by means of a Nansen passport, given that he had refused to take French nationality (as that would have entailed military service against his convictions). He stayed in São Paulo (apart from a lengthy visit in France from October 1953 - March 1954) until the end of 1954. His published work from the time spent in Brazil is still in the theory of topological vector spaces; it is there that he completed his last major work on that topic (on "metric" theory of Banach spaces). Grothendieck moved to Lawrence, Kansas at the beginning of 1955, and there he set his old subject aside in order to work in algebraic topology and homological algebra, and increasingly in algebraic geometry. It was in Lawrence that Grothendieck developed his theory of Abelian categories and the reformulation of sheaf cohomology based on them, leading to the very influential "Tôhoku paper". In 1957 he was invited to visit Harvard by Oscar Zariski, but the offer fell through when he refused to sign a pledge promising not to work to overthrow the United States government—a refusal which, he was warned, threatened to land him in prison. The prospect of prison did not worry him, so long as he could have access to books. Comparing Grothendieck during his Nancy years to the -trained students at that time (Pierre Samuel, Roger Godement, René Thom, Jacques Dixmier, Jean Cerf, Yvonne Bruhat, Jean-Pierre Serre, and Bernard Malgrange), Leila Schneps said: His first works on topological vector spaces in 1953 have been successfully applied to physics and computer science, culminating in a relation between Grothendieck inequality and the Einstein-Podolsky-Rosen paradox in quantum physics. IHÉS years In 1958, Grothendieck was installed at the Institut des hautes études scientifiques (IHÉS), a new privately funded research institute that, in effect, had been created for Jean Dieudonné and Grothendieck. Grothendieck attracted attention by an intense and highly productive activity of seminars there (de facto working groups drafting into foundational work some of the ablest French and other mathematicians of the younger generation). Grothendieck practically ceased publication of papers through the conventional, learned journal route. He was, however, able to play a dominant role in mathematics for approximately a decade, gathering a strong school. Officially during this time, he had as students Michel Demazure (who worked on SGA3, on group schemes), Luc Illusie (cotangent complex), Michel Raynaud, Jean-Louis Verdier (co-founder of the derived category theory), and Pierre Deligne. Collaborators on the SGA projects also included Michael Artin (étale cohomology), Nick Katz (monodromy theory, and Lefschetz pencils). Jean Giraud worked out torsor theory extensions of nonabelian cohomology there as well. Many others such as David Mumford, Robin Hartshorne, Barry Mazur and C.P. Ramanujam were also involved. "Golden Age" Alexander Grothendieck's work during what is described as the "Golden Age" period at the IHÉS established several unifying themes in algebraic geometry, number theory, topology, category theory, and complex analysis. His first (pre-IHÉS) discovery in algebraic geometry was the Grothendieck–Hirzebruch–Riemann–Roch theorem, a generalisation of the Hirzebruch–Riemann–Roch theorem proved algebraically; in this context he also introduced K-theory. Then, following the programme he outlined in his talk at the 1958 International Congress of Mathematicians, he introduced the theory of schemes, developing it in detail in his Éléments de géométrie algébrique (EGA) and providing the new more flexible and general foundations for algebraic geometry that has been adopted in the field since that time. He went on to introduce the étale cohomology theory of schemes, providing the key tools for proving the Weil conjectures, as well as crystalline cohomology and algebraic de Rham cohomology to complement it. Closely linked to these cohomology theories, he originated topos theory as a generalisation of topology (relevant also in categorical logic). He also provided, by means of a categorical Galois theory, an algebraic definition of fundamental groups of schemes giving birth to the now famous Étale fundamental group and he then conjuctured the existence a further generalization of it, which is now known as the fundamental group scheme. As a framework for his coherent duality theory, he also introduced derived categories, which were further developed by Verdier. The results of his work on these and other topics were published in the EGA and in less polished form in the notes of the Séminaire de géométrie algébrique (SGA) that he directed at the IHÉS. Political activism Grothendieck's political views were radical and pacifistic. He strongly opposed both United States intervention in Vietnam and Soviet military expansionism. To protest against the Vietnam War, he gave lectures on category theory in the forests surrounding Hanoi while the city was being bombed. In 1966, he had declined to attend the International Congress of Mathematicians (ICM) in Moscow, where he was to receive the Fields Medal. He retired from scientific life around 1970 after he had found out that IHÉS was partly funded by the military. He returned to academia a few years later as a professor at the University of Montpellier. While the issue of military funding was perhaps the most obvious explanation for Grothendieck's departure from the IHÉS, those who knew him say that the causes of the rupture ran more deeply. Pierre Cartier, a visiteur de longue durée ("long-term guest") at the IHÉS, wrote a piece about Grothendieck for a special volume published on the occasion of the IHÉS's fortieth anniversary. In that publication, Cartier notes that as the son of an antimilitary anarchist and one who grew up among the disenfranchised, Grothendieck always had a deep compassion for the poor and the downtrodden. As Cartier puts it, Grothendieck came to find Bures-sur-Yvette as "une cage dorée" ("a gilded cage"). While Grothendieck was at the IHÉS, opposition to the Vietnam War was heating up, and Cartier suggests that this also reinforced Grothendieck's distaste at having become a mandarin of the scientific world. In addition, after several years at the IHÉS, Grothendieck seemed to cast about for new intellectual interests. By the late 1960s, he had started to become interested in scientific areas outside mathematics. David Ruelle, a physicist who joined the IHÉS faculty in 1964, said that Grothendieck came to talk to him a few times about physics. Biology interested Grothendieck much more than physics, and he organized some seminars on biological topics. In 1970, Grothendieck, with two other mathematicians, Claude Chevalley and Pierre Samuel, created a political group entitled Survivre—the name later changed to Survivre et vivre. The group published a bulletin and was dedicated to antimilitary and ecological issues. It also developed strong criticism of the indiscriminate use of science and technology. Grothendieck devoted the next three years to this group and served as the main editor of its bulletin. Although Grothendieck continued with mathematical enquiries, his standard mathematical career mostly ended when he left the IHÉS. After leaving the IHÉS, Grothendieck became a temporary professor at Collège de France for two years. He then became a professor at the University of Montpellier, where he became increasingly estranged from the mathematical community. He formally retired in 1988, a few years after having accepted a research position at the CNRS. Manuscripts written in the 1980s While not publishing mathematical research in conventional ways during the 1980s, he produced several influential manuscripts with limited distribution, with both mathematical and biographical content. Produced during 1980 and 1981, La Longue Marche à travers la théorie de Galois (The Long March Through Galois Theory) is a 1600-page handwritten manuscript containing many of the ideas that led to the Esquisse d'un programme. It also includes a study of Teichmüller theory. In 1983, stimulated by correspondence with Ronald Brown and Tim Porter at Bangor University, Grothendieck wrote a 600-page manuscript entitled Pursuing Stacks. It began with a letter addressed to Daniel Quillen. This letter and successive parts were distributed from Bangor (see External links below). Within these, in an informal, diary-like manner, Grothendieck explained and developed his ideas on the relationship between algebraic homotopy theory and algebraic geometry and prospects for a noncommutative theory of stacks. The manuscript, which is being edited for publication by G. Maltsiniotis, later led to another of his monumental works, Les Dérivateurs. Written in 1991, this latter opus of approximately 2000 pages, further developed the homotopical ideas begun in Pursuing Stacks. Much of this work anticipated the subsequent development during the mid-1990s of the motivic homotopy theory of Fabien Morel and Vladimir Voevodsky. In 1984, Grothendieck wrote the proposal Esquisse d'un Programme ("Sketch of a Programme") for a position at the Centre National de la Recherche Scientifique (CNRS). It describes new ideas for studying the moduli space of complex curves. Although Grothendieck never published his work in this area, the proposal inspired other mathematicians to work in the area by becoming the source of dessin d'enfant theory and Anabelian geometry. Later, it was published in two-volumes and entitled Geometric Galois Actions (Cambridge University Press, 1997). During this period, Grothendieck also gave his consent to publishing some of his drafts for EGA on Bertini-type theorems (EGA V, published in Ulam Quarterly in 1992–1993 and later made available on the Grothendieck Circle web site in 2004). In the 1,000-page autobiographical manuscript, Récoltes et semailles (1986), Grothendieck describes his approach to mathematics and his experiences in the mathematical community, a community that initially accepted him in an open and welcoming manner, but which he progressively perceived to be governed by competition and status. He complains about what he saw as the "burial" of his work and betrayal by his former students and colleagues after he had left the community. The Récoltes et semailles work is now available on the internet in the French original, and an English translation is underway. A Japanese translation of the whole book in four volumes was completed by Tsuji Yuichi (1938–2002), a friend of Grothendieck from the Survivre period. The first three volumes (corresponding to Parts 0 to III of the book) were published between 1989 and 1993, while the fourth volume (Part IV) was completed and, although unpublished, copies of it as a typed manuscript are circulated. Grothendieck helped with the translation and wrote a preface for it, in which he called Tsuji his "first true collaborator". Parts of Récoltes et semailles have been translated into Spanish, as well as into a Russian translation that was published in Moscow. The French original was finally published in two volumes in January 2022, with additional texts by people of various professions who discuss certain aspects of the book. In 1988, Grothendieck declined the Crafoord Prize with an open letter to the media. He wrote that he and other established mathematicians had no need for additional financial support and criticized what he saw as the declining ethics of the scientific community that was characterized by outright scientific theft that he believed had become commonplace and tolerated. The letter also expressed his belief that totally unforeseen events before the end of the century would lead to an unprecedented collapse of civilization. Grothendieck added however that his views were "in no way meant as a criticism of the Royal Academy's aims in the administration of its funds" and he added, "I regret the inconvenience that my refusal to accept the Crafoord prize may have caused you and the Royal Academy." La Clef des Songes, a 315-page manuscript written in 1987, is Grothendieck's account of how his consideration of the source of dreams led him to conclude that a deity exists. As part of the notes to this manuscript, Grothendieck described the life and the work of 18 "mutants", people whom he admired as visionaries far ahead of their time and heralding a new age. The only mathematician on his list was Bernhard Riemann. Influenced by the Catholic mystic Marthe Robin who was claimed to have survived on the Holy Eucharist alone, Grothendieck almost starved himself to death in 1988. His growing preoccupation with spiritual matters was also evident in a letter entitled Lettre de la Bonne Nouvelle sent to 250 friends in January 1990. In it, he described his encounters with a deity and announced that a "New Age" would commence on 14 October 1996. The Grothendieck Festschrift, published in 1990, was a three-volume collection of research papers to mark his sixtieth birthday in 1988. More than 20,000 pages of Grothendieck's mathematical and other writings are held at the University of Montpellier and remain unpublished. They have been digitized for preservation and are freely available in open access through the Institut Montpelliérain Alexander Grothendieck portal. Retirement into reclusion and death In 1991, Grothendieck moved to a new address that he did not share with his previous contacts in the mathematical community. Very few people visited him afterward. Local villagers helped sustain him with a more varied diet after he tried to live on a staple of dandelion soup. At some point, Leila Schneps and Pierre Lochak located him, then carried on a brief correspondence. Thus they became among "the last members of the mathematical establishment to come into contact with him". After his death, it was revealed that he lived alone in a house in Lasserre, Ariège, a small village at the foot of the Pyrenees. In January 2010, Grothendieck wrote the letter entitled "Déclaration d'intention de non-publication" to Luc Illusie, claiming that all materials published in his absence had been published without his permission. He asked that none of his work be reproduced in whole or in part and that copies of this work be removed from libraries. He characterized a website devoted to his work as "an abomination". His dictate may have been reversed in 2010. On 13 November 2014, aged 86, Grothendieck died in the hospital of Saint-Girons, Ariège. Citizenship Grothendieck was born in Weimar Germany. In 1938, aged ten, he moved to France as a refugee. Records of his nationality were destroyed in the fall of Nazi Germany in 1945 and he did not apply for French citizenship after the war. Thus, he became a stateless person for at least the majority of his working life and he traveled on a Nansen passport. Part of his reluctance to hold French nationality is attributed to not wishing to serve in the French military, particularly due to the Algerian War (1954–62). He eventually applied for French citizenship in the early 1980s, after he was well past the age that exempted him from military service. Family Grothendieck was very close to his mother to whom he dedicated his dissertation. She died in 1957 from the tuberculosis that she contracted in camps for displaced persons. He had five children: a son with his landlady during his time in Nancy; three children, Johanna (1959), Alexander (1961), and Mathieu (1965) with his wife Mireille Dufour; and one child with Justine Skalba, with whom he lived in a commune in the early 1970s. Mathematical work Grothendieck's early mathematical work was in functional analysis. Between 1949 and 1953 he worked on his doctoral thesis in this subject at Nancy, supervised by Jean Dieudonné and Laurent Schwartz. His key contributions include topological tensor products of topological vector spaces, the theory of nuclear spaces as foundational for Schwartz distributions, and the application of Lp spaces in studying linear maps between topological vector spaces. In a few years, he had become a leading authority on this area of functional analysis—to the extent that Dieudonné compares his impact in this field to that of Banach. It is, however, in algebraic geometry and related fields where Grothendieck did his most important and influential work. From approximately 1955 he started to work on sheaf theory and homological algebra, producing the influential "Tôhoku paper" (Sur quelques points d'algèbre homologique, published in the Tohoku Mathematical Journal in 1957) where he introduced abelian categories and applied their theory to show that sheaf cohomology may be defined as certain derived functors in this context. Homological methods and sheaf theory had already been introduced in algebraic geometry by Jean-Pierre Serre and others, after sheaves had been defined by Jean Leray. Grothendieck took them to a higher level of abstraction and turned them into a key organising principle of his theory. He shifted attention from the study of individual varieties to his relative point of view (pairs of varieties related by a morphism), allowing a broad generalization of many classical theorems. The first major application was the relative version of Serre's theorem showing that the cohomology of a coherent sheaf on a complete variety is finite-dimensional; Grothendieck's theorem shows that the higher direct images of coherent sheaves under a proper map are coherent; this reduces to Serre's theorem over a one-point space. In 1956, he applied the same thinking to the Riemann–Roch theorem, which recently had been generalized to any dimension by Hirzebruch. The Grothendieck–Riemann–Roch theorem was announced by Grothendieck at the initial Mathematische Arbeitstagung in Bonn, in 1957. It appeared in print in a paper written by Armand Borel with Serre. This result was his first work in algebraic geometry. Grothendieck went on to plan and execute a programme for rebuilding the foundations of algebraic geometry, which at the time were in a state of flux and under discussion in Claude Chevalley's seminar. He outlined his programme in his talk at the 1958 International Congress of Mathematicians. His foundational work on algebraic geometry is at a higher level of abstraction than all prior versions. He adapted the use of non-closed generic points, which led to the theory of schemes. Grothendieck also pioneered the systematic use of nilpotents. As 'functions' these can take only the value 0, but they carry infinitesimal information, in purely algebraic settings. His theory of schemes has become established as the best universal foundation for this field, because of its expressiveness as well as its technical depth. In that setting one can use birational geometry, techniques from number theory, Galois theory, commutative algebra, and close analogues of the methods of algebraic topology, all in an integrated way. Grothendieck is noted for his mastery of abstract approaches to mathematics and his perfectionism in matters of formulation and presentation. Relatively little of his work after 1960 was published by the conventional route of the learned journal, circulating initially in duplicated volumes of seminar notes; his influence was to a considerable extent personal. His influence spilled over into many other branches of mathematics, for example the contemporary theory of D-modules. Although lauded as "the Einstein of mathematics", his work also provoked adverse reactions, with many mathematicians seeking out more concrete areas and problems. EGA, SGA, FGA The bulk of Grothendieck's published work is collected in the monumental, yet incomplete, Éléments de géométrie algébrique (EGA) and Séminaire de géométrie algébrique (SGA). The collection, Fondements de la Géometrie Algébrique (FGA), which gathers together talks given in the Séminaire Bourbaki, also contains important material. Grothendieck's work includes the invention of the étale and l-adic cohomology theories, which explain an observation made by André Weil that argued for a connection between the topological characteristics of a variety and its diophantine (number theoretic) properties. For example, the number of solutions of an equation over a finite field reflects the topological nature of its solutions over the complex numbers. Weil had realized that to prove such a connection, one needed a new cohomology theory, but neither he nor any other expert saw how to accomplish this until such a theory was expressed by Grothendieck. This program culminated in the proofs of the Weil conjectures, the last of which was settled by Grothendieck's student Pierre Deligne in the early 1970s after Grothendieck had largely withdrawn from mathematics. Major mathematical contributions In Grothendieck's retrospective Récoltes et Semailles, he identified twelve of his contributions that he believed qualified as "great ideas". In chronological order, they are: Topological tensor products and nuclear spaces "Continuous" and "discrete" duality (derived categories, "six operations") Yoga of the Grothendieck–Riemann–Roch theorem K-theory relation with intersection theory Schemes Topoi Étale cohomology and l-adic cohomology Motives and the motivic Galois group (Grothendieck ⊗-categories) Crystals and crystalline cohomology, yoga of "de Rham coefficients", "Hodge coefficients"... "Topological algebra": ∞-stacks, derivators; cohomological formalism of topoi as inspiration for a new homotopical algebra Tame topology Yoga of anabelian algebraic geometry, Galois–Teichmüller theory "Schematic" or "arithmetic" point of view for regular polyhedra and regular configurations of all kinds Here the term yoga denotes a kind of "meta-theory" that may be used heuristically; Michel Raynaud writes the other terms "Ariadne's thread" and "philosophy" as effective equivalents. Grothendieck wrote that, of these themes, the largest in scope was topoi, as they synthesized algebraic geometry, topology, and arithmetic. The theme that had been most extensively developed was schemes, which were the framework "par excellence" for eight of the other themes (all but 1, 5, and 12). Grothendieck wrote that the first and last themes, topological tensor products and regular configurations, were of more modest size than the others. Topological tensor products had played the role of a tool rather than of a source of inspiration for further developments; but he expected that regular configurations could not be exhausted within the lifetime of a mathematician who devoted oneself to it. He believed that the deepest themes were motives, anabelian geometry, and Galois–Teichmüller theory. Influence Grothendieck is considered by many to be the greatest mathematician of the twentieth century. In an obituary David Mumford and John Tate wrote: Although mathematics became more and more abstract and general throughout the 20th century, it was Alexander Grothendieck who was the greatest master of this trend. His unique skill was to eliminate all unnecessary hypotheses and burrow into an area so deeply that its inner patterns on the most abstract level revealed themselves–and then, like a magician, show how the solution of old problems fell out in straightforward ways now that their real nature had been revealed. By the 1970s, Grothendieck's work was seen as influential, not only in algebraic geometry and the allied fields of sheaf theory and homological algebra, but influenced logic, in the field of categorical logic. Geometry Grothendieck approached algebraic geometry by clarifying the foundations of the field, and by developing mathematical tools intended to prove a number of notable conjectures. Algebraic geometry has traditionally meant the understanding of geometric objects, such as algebraic curves and surfaces, through the study of the algebraic equations for those objects. Properties of algebraic equations are in turn studied using the techniques of ring theory. In this approach, the properties of a geometric object are related to the properties of an associated ring. The space (e.g., real, complex, or projective) in which the object is defined, is extrinsic to the object, while the ring is intrinsic. Grothendieck laid a new foundation for algebraic geometry by making intrinsic spaces ("spectra") and associated rings the primary objects of study. To that end, he developed the theory of schemes that informally can be thought of as topological spaces on which a commutative ring is associated to every open subset of the space. Schemes have become the basic objects of study for practitioners of modern algebraic geometry. Their use as a foundation allowed geometry to absorb technical advances from other fields. His generalization of the classical Riemann–Roch theorem related topological properties of complex algebraic curves to their algebraic structure and now bears his name, being called "the Grothendieck–Hirzebruch–Riemann–Roch theorem". The tools he developed to prove this theorem started the study of algebraic and topological K-theory, which explores the topological properties of objects by associating them with rings. After direct contact with Grothendieck's ideas at the Bonn Arbeitstagung, topological K-theory was founded by Michael Atiyah and Friedrich Hirzebruch. Cohomology theories Grothendieck's construction of new cohomology theories, which use algebraic techniques to study topological objects, has influenced the development of algebraic number theory, algebraic topology, and representation theory. As part of this project, his creation of topos theory, a category-theoretic generalization of point-set topology, has influenced the fields of set theory and mathematical logic. The Weil conjectures were formulated in the later 1940s as a set of mathematical problems in arithmetic geometry. They describe properties of analytic invariants, called local zeta functions, of the number of points on an algebraic curve or variety of higher dimension. Grothendieck's discovery of the ℓ-adic étale cohomology, the first example of a Weil cohomology theory, opened the way for a proof of the Weil conjectures, ultimately completed in the 1970s by his student Pierre Deligne. Grothendieck's large-scale approach has been called a "visionary program". The ℓ-adic cohomology then became a fundamental tool for number theorists, with applications to the Langlands program. Grothendieck's conjectural theory of motives was intended to be the "ℓ-adic" theory but without the choice of "ℓ", a prime number. It did not provide the intended route to the Weil conjectures, but has been behind modern developments in algebraic K-theory, motivic homotopy theory, and motivic integration. This theory, Daniel Quillen's work, and Grothendieck's theory of Chern classes, are considered the background to the theory of algebraic cobordism, another algebraic analogue of topological ideas. Category theory Grothendieck's emphasis on the role of universal properties across varied mathematical structures brought category theory into the mainstream as an organizing principle for mathematics in general. Among its uses, category theory creates a common language for describing similar structures and techniques seen in many different mathematical systems. His notion of abelian category is now the basic object of study in homological algebra. The emergence of a separate mathematical discipline of category theory has been attributed to Grothendieck's influence, although unintentional. In popular culture The novel Colonel Lágrimas (Colonel Tears in English, available by Restless Books) by Puerto Rican–Costa Rican writer Carlos Fonseca is a semibiographic novel about Grothendieck. The band Stone Hill All Stars have a song named after Alexander Grothendieck. In the novel When We Cease to Understand the World, Benjamin Labatut dedicates one chapter to the story of Grothendieck. In the novel The Passenger and its sequel Stella Maris by Cormac McCarthy, one of the main characters is a student of Grothendieck. Publications See also ∞-groupoid λ-ring AB5 category Abelian category Accessible category Algebraic geometry Algebraic stack Barsotti–Tate group Chern class Descent (mathematics) Dévissage Dunford–Pettis property Excellent ring Formally smooth map Fundamental group scheme K-theory Hilbert scheme Homotopy hypothesis List of things named after Alexander Grothendieck Nakai conjecture Nuclear operator Nuclear space Parafactorial local ring Projective tensor product Quasi-finite morphism Quot scheme Scheme (mathematics) Section conjecture Semistable abelian variety Sheaf cohomology Stack (mathematics) Standard conjectures on algebraic cycles Sketch of a program Tannakian formalism Theorem of absolute purity Theorem on formal functions Ultrabornological space Weil conjectures Vector bundles on algebraic curves Zariski's main theorem Notes References Sources and further reading English translation of . English translation: First part of planned four-volume biography. English version. A review of the German edition Third part of planned four-volume biography; crowd-financed translation into English. First 4 chapters from the incomplete second part of planned four-volume biography. External links Séminaire Grothendieck is a peripatetic seminar on Grothendieck view not just on mathematics Grothendieck Circle, collection of mathematical and biographical information, photos, links to his writings The origins of 'Pursuing Stacks': This is an account of how 'Pursuing Stacks' was written in response to a correspondence in English with Ronnie Brown and Tim Porter at Bangor, which continued until 1991. See also Alexander Grothendieck: some recollections. Récoltes et Semailles "Récoltes et Semailles" et "La Clef des Songes", French originals and Spanish translations English summary of "La Clef des Songes" Video of a lecture with photos from Grothendieck's life, given by Winfried Scharlau at IHES in 2009 Can one explain schemes to biologists —biographical sketch of Grothendieck by David Mumford & John Tate Archives Grothendieck "Who Is Alexander Grothendieck?, Winfried Scharlau, Notices of the AMS 55(8), 2008. "Alexander Grothendieck: A Country Known Only by Name, Pierre Cartier, Notices of the AMS 62(4), 2015. Alexandre Grothendieck 1928–2014, Part 1, Notices of the AMS 63(3), 2016. A. Grothendieck by Mateo Carmona Les-archives-insaisissables-d-alexandre-grothendieck Kutateladze S.S. Rebellious Genius: In Memory of Alexander Grothendieck Alexandre-Grothendieck-une-mathematique-en-cathedrale-gothique Les-archives-insaisissables-d-alexandre-grothendieck 1928 births 2014 deaths 20th-century French mathematicians Algebraic geometers Algebraists Emigrants from Nazi Germany to France Fields Medalists French pacifists Functional analysts German people of Russian-Jewish descent Nancy-Université alumni Nicolas Bourbaki Non-interventionism Operator theorists Scientists from Berlin Stateless people

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https://en.wikipedia.org/wiki/Alcoholics%20Anonymous

Alcoholics Anonymous

Alcoholics Anonymous (AA) is a global peer-led mutual aid fellowship begun in the U.S. and dedicated to abstinence-based recovery from alcoholism through their spiritually inclined twelve-step program. Besides stressing anonymity and offering membership to anyone wishing to stop drinking, AA's twelve traditions establish it as free to all, non-professional, non-denominational, apolitical and unaffiliated. In 2020 AA estimated its worldwide membership to be over two million with 75% of those in the U.S. and Canada. In 1935, the recognized start of AA, Bill Wilson (Bill W.) first commiserated alcoholic-to-alcoholic with Bob Smith (Dr. Bob). Meeting through AA's immediate precursor the Christian revivalist Oxford Group, they and other alcoholics fellowshipped there until forming what became AA. In 1939 the new fellowship, then mostly male and white, published Alcoholics Anonymous: The Story of How More Than One Hundred Men Have Recovered From Alcoholism, also known as the Big Book and as the source of AA’s name. AA's twelve steps are a suggested and continuing sobriety program of prayer, reflection, admission, better conduct and atonement, all to effect a “spiritual awakening”, after which members should take others through the steps, usually by taking on sponsees. Divining and following the will of an undefined God—"as we understood Him", also designated as a “higher power”—is integral to the steps, but differing practices and beliefs, including those of atheists and other non-theists, are accommodated. The twelve traditions are guidelines to keep AA focused on altruistically helping others to recover from alcoholism. With AA's traditions membership goes to anyone professing a desire to stop drinking, and that all memberships should be kept anonymous, especially in public media, but no repercussions are prescribed for broken anonymity. Additionally the traditions have AA avoiding hierarchies, dogma, public controversies and other outside entanglements, or using AA for personal gain or public prestige. They also insist that no dues or fees are required, and to be self-supporting, no outside financial aid can be accepted. A 2020 scientific review found that clinical interventions increasing AA participation via AA Twelve Step Facilitation (AA/TSF) had sustained remission rates 20-60% better than other well-established treatments regardless of demographics. Additionally, 4 of the 5 economic studies in the review found that AA/TSF lowered healthcare costs considerably. Regarding the disease model of alcoholism, an otherwise receptive AA has not endorsed it while many AA members have promoted it towards wider acceptance. AA has allowed other recovery fellowships such as Narcotics Anonymous and Al-Anon to adopt and adapt the twelve steps and twelve traditions. History AA was founded on 10 June 1935 but AA's origins are said to have begun when the renowned psychotherapist Carl Jung inspired Rowland H., an otherwise hopeless drunk, to seek a spiritual solution by sending him to the Oxford Group— a non-denominational, altruistic Christian movement modeled after first-century Christianity. Ebby Thacher got sober in that same Oxford Group and reached out to help his drinking buddy Bill Wilson. Thacher approached Wilson saying that he had "got religion", was sober, and that Wilson could do the same if he set aside objections and instead formed a personal idea of God, "another power" or "higher power". Feeling a "kinship of common suffering", Wilson attended his first group gathering, although he was drunk. Within days, Wilson admitted himself to the Charles B. Towns Hospital after drinking four beers on the way—the last alcohol he ever drank. Under the care of Dr. William Duncan Silkworth (an early benefactor of AA), Wilson's detox included the deliriant belladonna. At the hospital, a despairing Wilson experienced a bright flash of light, which he felt to be God revealing himself. Following his hospital discharge, Wilson joined the Oxford Group and tried to recruit other alcoholics to the group. These early efforts to help others kept him sober, but were ineffective in getting anyone else to join the group and get sober. Dr. Silkworth suggested that Wilson place less stress on religion (as required by The Oxford Group) and more on the science of treating alcoholism. Wilson's first success came during a business trip to Akron, Ohio, where he was introduced to Robert Smith, a surgeon and Oxford Group member who was unable to stay sober. After thirty days of working with Wilson, Smith drank his last drink on 10 June 1935, the date marked by AA for its anniversaries. The first female member, Florence Rankin, joined AA in March 1937, and the first non-Protestant member, a Roman Catholic, joined in 1939. The first Black AA group was established in 1945 in Washington, D.C. by Jim S., an African-American physician from Virginia. While writing the Big Book in the several years after 1935, Wilson developed the Twelve Steps, which were influenced by the Oxford Group's 6 steps and various readings, including William James's The Varieties of Religious Experience. The Big Book, the Twelve Steps, and the Twelve Traditions To share their method, Wilson and other members wrote the initially-titled book, Alcoholics Anonymous: The Story of How More Than One Hundred Men Have Recovered from Alcoholism, from which AA drew its name. Informally known as "The Big Book" (with its first 164 pages virtually unchanged since the 1939 edition), it suggests a twelve-step program in which members admit that they are powerless over alcohol and need help from a "higher power". They seek guidance and strength through prayer and meditation from God or a higher power of their own understanding; take a moral inventory with care to include resentments; list and become ready to remove character defects; list and make amends to those harmed; continue to take a moral inventory, pray, meditate, and try to help other alcoholics recover. The second half of the book, "Personal Stories" (subject to additions, removal, and retitling in subsequent editions), is made of AA members' redemptive autobiographical sketches. In 1941, interviews on American radio and favorable articles in US magazines, including a piece by Jack Alexander in The Saturday Evening Post, led to increased book sales and membership. By 1946, as the growing fellowship quarreled over structure, purpose, authority, finances and publicity, Wilson began to form and promote what became known as AA's "Twelve Traditions", which are guidelines for an altruistic, unaffiliated, non-coercive, and non-hierarchical structure that limited AA's purpose to only helping alcoholics on a non-professional level while shunning publicity. Eventually, he gained formal adoption and inclusion of the Twelve Traditions in all future editions of the Big Book. At the 1955 conference in St. Louis, Missouri, Wilson relinquished stewardship of AA to the General Service Conference, as AA had grown to millions of members internationally. In May of 2017, Alcoholics Anonymous World Services Inc. filed a lawsuit in the Supreme Court of the State of New York seeking the return of the original manuscript of the Big Book from its then-owner. AAWS claimed that the manuscript had been given to them as a gift in 1979. This action was criticized by many members of Alcoholics Anonymous since they didn't want their parent organization engaged in lawsuits. Alcoholics Anonymous World Services Inc. asked the court to voluntarily discontinue the action in November of 2017. Organization and finances AA says it is "not organized in the formal or political sense", and Wilson, borrowing the phrase from anarchy theorist Peter Kropotkin, called it a "benign anarchy". In Ireland, Shane Butler said that AA "looks like it couldn't survive as there's no leadership or top-level telling local cumanns what to do, but it has worked and proved itself extremely robust". Butler explained that "AA's 'inverted pyramid' style of governance has helped it to avoid many of the pitfalls that political and religious institutions have encountered since it was established here in 1946." In 2018, AA had 2,087,840 members and 120,300 AA groups worldwide. The Twelve Traditions informally guide how individual AA groups function, and the Twelve Concepts for World Service guide how the organization is structured globally. A member who accepts a service position or an organizing role is a "trusted servant" with terms rotating and limited, typically lasting three months to two years and determined by group vote and the nature of the position. Each group is a self-governing entity, with AA World Services acting only in an advisory capacity. AA is served entirely by alcoholics, except for seven "nonalcoholic friends of the fellowship" of the 21-member AA Board of Trustees. AA groups are self-supporting, relying on voluntary contributions from members to cover expenses. The AA General Service Office (GSO) limits contributions to US$5,000 a year. "Below" the group level, AA may hire outside professionals for services that require specialized expertise or full-time responsibilities. Like individual groups, the GSO is self-supporting. AA receives proceeds from books and literature that constitute more than 50% of the income for its GSO. In keeping with AA's Seventh Tradition, the Central Office is fully self-supporting through the sale of literature and related products, and the voluntary contributions of AA members and groups. It does not accept donations from people or organizations outside of AA. In keeping with AA's Eighth Tradition, the Central Office employs special workers who are compensated financially for their services, but their services do not include working with alcoholics in need (the "12th Step"). (AA's 12th step is: "Having had a spiritual awakening as the result of these Steps, we tried to carry this message to alcoholics, and to practice these principles in all our affairs.") All 12th Step calls that come to the Central Office are handed to sober AA members who have volunteered to handle these calls. It also maintains service centers, which coordinate activities such as printing literature, responding to public inquiries, and organizing conferences. Other International General Service Offices (Australia, Costa Rica, Russia, etc.) are independent of AA World Services in New York. Program AA's program extends beyond abstaining from alcohol. Its goal is to effect enough change in the alcoholic's thinking "to bring about recovery from alcoholism" through "an entire psychic change," or spiritual awakening. A spiritual awakening is meant to be achieved by taking the Twelve Steps, and sobriety is furthered by volunteering for AA and regular AA meeting attendance or contact with AA members. Members are encouraged to find an experienced fellow alcoholic, called a sponsor, to help them understand and follow the AA program. The sponsor should preferably have experienced all twelve of the steps, be the same sex as the sponsored person, and refrain from imposing personal views on the sponsored person. Following the helper therapy principle, sponsors in AA may benefit from their relationship with their charges, as "helping behaviors" correlate with increased abstinence and lower probabilities of binge drinking. AA shares the view that acceptance of one's inherent limitations is critical to finding one's proper place among other humans and God. Such ideas are described as "Counter-Enlightenment" because they are contrary to the Enlightenment's ideal that humans have the capacity to make their lives and societies a heaven on Earth using their own power and reason. After evaluating AA's literature and observing AA meetings for sixteen months, sociologists David R. Rudy and Arthur L. Greil found that for an AA member to remain sober, a high level of commitment is necessary. This commitment is facilitated by a change in the member's worldview. They argue that to help members stay sober, AA must provide an all-encompassing worldview while creating and sustaining an atmosphere of transcendence in the organization. To be all-encompassing, AA's ideology emphasizes tolerance rather than a narrow religious worldview that may make the organization unpalatable to potential members and thereby limit its effectiveness. AA's emphasis on the spiritual nature of its program, however, is necessary to institutionalize a feeling of transcendence. A tension results from the risk that the necessity of transcendence, if taken too literally, would compromise AA's efforts to maintain a broad appeal. As this tension is an integral part of AA, Rudy and Greil argue that AA is best described as a quasi-religious organization. Meetings AA meetings are gatherings where recovery from alcoholism is discussed. One perspective sees them as "quasi-ritualized therapeutic sessions run by and for, alcoholics". There are a variety of meeting types some of which are listed below. At some point during the meeting a basket is passed around for voluntary donations. AA's 7th tradition requires that groups be self-supporting, "declining outside contributions". Weekly meetings are listed in local AA directories in print, online and in apps. Open vs Closed meetings "Open" meetings welcome anyone—nonalcoholics can attend as observers. Meetings listed as "closed" welcome those with a self-professed "desire to stop drinking," which cannot be challenged by another member on any grounds. Speaker meetings At speaker meetings one or more members come to tell their stories. Big Book meetings At Big Book meetings, attendees read from the AA Big Book and discuss it. Discussion meetings There are also meetings with or without a topic that allow participants to speak up or "share". Online vs. offline meetings Online meetings are digital meetings held on platforms such as Zoom. Offline meetings, also called "face to face", "brick and mortar", or "in-person" meetings, are held in a shared physical real-world location. Some meetings are hybrid meetings, where people can meet in a specified physical location, but people can also join the meeting virtually. Specialized meetings AA meetings do not exclude other alcoholics, though some meetings cater to specific demographics such as gender, profession, age, sexual orientation, or culture. Meetings in the United States are held in a variety of languages including Armenian, English, Farsi, Finnish, French, Japanese, Korean, Russian, and Spanish. Meeting formats While AA has pamphlets that suggest meeting formats, groups have the autonomy to hold and conduct meetings as they wish "except in matters affecting other groups or AA as a whole". Different cultures affect ritual aspects of meetings, but around the world "many particularities of the AA meeting format can be observed at almost any AA gathering". Confidentiality In the Fifth Step, AA members typically reveal their own past misconduct to their sponsors. US courts have not extended the status of privileged communication, such as physician-patient privilege or clergy–penitent privilege, to communications between an AA member and their sponsor. Spirituality Some critics have criticized 12-step programs as "a cult that relies on God as the mechanism of action" and as "overly theistic and outdated". Others have cited the necessity of a "higher power" in formal AA as creating dependence on outside factors rather than internal efficacy. A 2010 study found increased attendance at AA meetings was associated with increased spirituality and decreased frequency and intensity of alcohol use. Since the mid-1970s, several 'agnostic' or 'no-prayer' AA groups have begun across the US, Canada, and other parts of the world, which hold meetings that adhere to a tradition allowing alcoholics to freely express their doubts or disbelief that spirituality will help their recovery, and these meetings forgo the use of opening or closing prayers. Disease concept of alcoholism More informally than not, AA's membership has helped popularize the disease concept of alcoholism which had appeared in the eighteenth century. Though AA usually avoids the term disease, 1973 conference-approved literature said "we had the disease of alcoholism." Regardless of official positions, since AA's inception, most members have believed alcoholism to be a disease. AA's Big Book calls alcoholism "an illness which only a spiritual experience will conquer." Ernest Kurtz says this is "The closest the book Alcoholics Anonymous comes to a definition of alcoholism." Somewhat divergently in his introduction to The Big Book, non-member and early benefactor William Silkworth said those unable to moderate their drinking suffer from an allergy. In presenting the doctor's postulate, AA said "The doctor's theory that we have an allergy to alcohol interests us. As laymen, our opinion as to its soundness may, of course, mean little. But as ex-problem drinkers, we can say that his explanation makes good sense. It explains many things for which we cannot otherwise account." AA later acknowledged that "alcoholism is not a true allergy, the experts now inform us." Wilson explained in 1960 why AA had refrained from using the term disease: Since then medical and scientific communities have defined alcoholism as an "addictive disease" (aka Alcohol Use Disorder, Severe, Moderate, or Mild). The ten criteria are: alcoholism is a Primary Illness not caused by other illnesses nor by personality or character defects; second, an addiction gene is part of its etiology; third, alcoholism has predictable symptoms; fourth, it is progressive, becoming more severe even after long periods of abstinence; fifth, it is chronic and incurable; sixth, alcoholic drinking or other drug use persists in spite of negative consequences and efforts to quit; seventh, brain chemistry and neural functions change so alcohol is perceived as necessary for survival; eighth, it produces physical dependence and life-threatening withdrawal; ninth, it is a terminal illness; tenth, alcoholism can be treated and can be kept in remission. Canadian and United States demographics AA's New York General Service Office regularly surveys AA members in North America. Its 2014 survey of over 6,000 members in Canada and the United States concluded that, in North America, AA members who responded to the survey were 62% male and 38% female. The survey found that 89% of AA members were white. Average member sobriety is slightly under 10 years with 36% sober more than ten years, 13% sober from five to ten years, 24% sober from one to five years, and 27% sober less than one year. Before coming to AA, 63% of members received some type of treatment or counseling, such as medical, psychological, or spiritual. After coming to AA, 59% received outside treatment or counseling. Of those members, 84% said that outside help played an important part in their recovery. The same survey showed that AA received 32% of its membership from other members, another 32% from treatment facilities, 30% were self-motivated to attend AA, 12% of its membership from court-ordered attendance, and only 1% of AA members decided to join based on information obtained from the Internet. People taking the survey were allowed to select multiple answers for what motivated them to join AA. Relationship with institutions Hospitals Many AA meetings take place in treatment facilities. Carrying the message of AA into hospitals was how the co-founders of AA first remained sober. They discovered great value in working with alcoholics who are still suffering, and that even if the alcoholic they were working with did not stay sober, they did. Bill Wilson wrote, "Practical experience shows that nothing will so much insure immunity from drinking as intensive work with other alcoholics". Bill Wilson visited Towns Hospital in New York City in an attempt to help the alcoholics who were patients there in 1934. At St. Thomas Hospital in Akron, Ohio, Smith worked with still more alcoholics. In 1939, a New York mental institution, Rockland State Hospital, was one of the first institutions to allow AA hospital groups. Service to corrections and treatment facilities used to be combined until the General Service Conference, in 1977, voted to dissolve its Institutions Committee and form two separate committees, one for treatment facilities, and one for correctional facilities. Prisons In the United States and Canada, AA meetings are held in hundreds of correctional facilities. The AA General Service Office has published a workbook with detailed recommendations for methods of approaching correctional-facility officials with the intent of developing an in-prison AA program. In addition, AA publishes a variety of pamphlets specifically for the incarcerated alcoholic. Additionally, the AA General Service Office provides a pamphlet with guidelines for members working with incarcerated alcoholics. United States court rulings United States courts have ruled that inmates, parolees, and probationers cannot be ordered to attend AA. Though AA itself was not deemed a religion, it was ruled that it contained enough religious components (variously described in Griffin v. Coughlin below as, inter alia, "religion", "religious activity", "religious exercise") to make coerced attendance at AA meetings a violation of the Establishment Clause of the First Amendment of the constitution. In 2007, the Ninth Circuit of the U.S. Court of Appeals stated that a parolee who was ordered to attend AA had standing to sue his parole office. United States treatment industry In 1939, High Watch Recovery Center in Kent, Connecticut, was founded by Bill Wilson and Marty Mann. Sister Francis who owned the farm tried to gift the spiritual retreat for alcoholics to Alcoholics Anonymous, however citing the sixth tradition Bill W. turned down the gift but agreed to have a separate non-profit board run the facility composed of AA members. Bill Wilson and Marty Mann served on the High Watch board of directors for many years. High Watch was the first and therefore the oldest 12-step-based treatment center in the world still operating today. In 1949, the Hazelden treatment center was founded and staffed by AA members, and since then many alcoholic rehabilitation clinics have incorporated AA's precepts into their treatment programs. 32% of AA's membership was introduced to it through a treatment facility. Effectiveness There are several ways one can determine whether AA works and numerous ways of measuring if AA is successful, such as looking at abstinence, reduced drinking intensity, reduced alcohol-related consequences, alcohol addiction severity, and healthcare cost. The effectiveness of AA (compared to other methods and treatments) has been challenged throughout the years, but recent high quality clinical meta-studies using quasi-experiment studies show that AA costs less than other treatments and results in increased abstinence. In longitudinal studies, AA appears to be about as effective as other abstinence-based support groups. Because of the anonymous and voluntary nature of AA meetings, it has been difficult to perform random trials with them. Environmental and quasi-experiment studies suggest that AA can help alcoholics make positive changes. In the past, some critics have criticized 12-step programs as pseudoscientific and "a cult that relies on God as the mechanism of action". Until recently, ethical and operational issues had prevented robust randomized controlled trials from being conducted comparing 12-step programs directly to other approaches. More recent studies employing randomized and blinded trials have shown 12-step programs provide similar benefit compared to motivational enhancement therapy (MET) and cognitive behavioral therapy (CBT), and were more effective in producing continuous abstinence and remission compared to these approaches. Cochrane 2020 review A 2020 Cochrane review concluded that "compared to other well-established treatments, clinical linkage using well-articulated Twelve-Step Facilitation (TSF) manualized interventions intended to increase Alcoholics Anonymous (AA) participation" are more effective than other established treatments, such as motivational enhancement therapy (MET) and cognitive-behavioral therapy (CBT), as measured by abstinence rates. Manualized TSF probably achieves additional desirable outcomes—such as fewer drinks per drinking day and less severe alcohol-related problems—at equivalent rates as other treatments, although evidence for such a conclusion comes from low to moderate certainty evidence "so should be regarded with caution". In response to a concern expressed by another addiction researcher that "those more strongly committed to total abstinence after receiving AA/TSF were likely to experience more protracted 'slips' if they did for any reason drink", the Cochrane review authors stated that subjects who did not achieve abstinence did not have worse drinking outcomes overall. Older studies A 2006 study by Rudolf H. Moos and Bernice S. Moos saw a 67% success rate 16 years later for the 24.9% of alcoholics who ended up, on their own, undergoing a lot of AA treatment. The study's results may be skewed by self-selection bias. Project MATCH was a 1990s 8-year, multi-site, $27-million investigation that studied which types of alcoholics respond best to which forms of treatment. Brandsma 1980 showed that Alcoholics Anonymous is more effective than no treatment whatsoever. Membership retention In 2001–2002, the National Institute on Alcohol Abuse and Alcoholism (NIAAA) conducted the National Epidemiological Survey on Alcoholism and Related Conditions (NESARC). Similarly structured to the NLAES, the survey conducted in-person interviews with 43,093 individuals. Respondents were asked if they had ever attended a twelve-step meeting for an alcohol problem in their lifetime (the question was not AA-specific). 1441 (3.4%) of respondents answered the question affirmatively. Answers were further broken down into three categories: disengaged, those who started attending at some point in the past but had ceased attending at some point in the past year (988); continued engagement, those who started attending at some point in the past and continued to attend during the past year (348); and newcomers, those who started attending during the past year (105). In their discussion of the findings, Kaskautas et al. (2008) state that to study disengagement, only the disengaged and continued engagement should be utilized (pg. 270). The popular press The Sober Truth American psychiatrist Lance Dodes, in The Sober Truth, says that research indicates that only five to eight percent of the people who go to one or more AA meetings achieve sobriety. The 5–8% figure put forward by Dodes is controversial; other doctors say that the book uses "three separate, questionable, calculations that arrive at the 5–8% figure." Addiction specialists state that the book's conclusion that "[12-step] approaches are almost completely ineffective and even harmful in treating substance use disorders" is wrong. One review called Dodes' reasoning against AA success a "pseudostatistical polemic". Dodes has not, as of March 2020, read the 2020 Cochrane review showing AA efficacy, but opposes the idea that a social network is needed to overcome substance abuse. The Irrationality of Alcoholics Anonymous In a 2015 article for The Atlantic, Gabrielle Glaser criticized the dominance of AA in the treatment of addiction in the United States. Her article uses Lance Dodes's figures and a 2006 Cochrane report to state AA had a low success rate, but those figures were subsequently criticized by experts as outdated. The Glaser article incorrectly conflates the efficacy of treatment centers with the efficacy of Alcoholics Anonymous. The Glaser article says that "nothing about the 12-step approach draws on modern science", but a large amount of scientific research has been done with AA, showing that AA increases abstinence rates. The Glaser article criticizes 12-step programs for being "faith-based", but 12-step programs allow for a very wide diversity of spiritual beliefs, and there are a growing number of secular 12-step meetings. Criticism Sexual advances ("thirteenth-stepping") "Thirteenth-stepping" is a pejorative term for AA members approaching new members for dates. A study in the Journal of Addiction Nursing sampled 55 women in AA and found that 35% of these women had experienced a "pass" and 29% had felt seduced at least once in AA settings. This has also happened with new male members who received guidance from older female AA members pursuing sexual company. The authors suggest that both men and women must be prepared for this behavior or find male or female-only groups. Women-only meetings are a very prevalent part of AA culture, and AA has become more welcoming for women. AA's pamphlet on sponsorship suggests that men be sponsored by men and women be sponsored by women. Alcoholics Anonymous World Services has a safety flier which states that "Unwanted sexual advances and predatory behaviors are in conflict with carrying the A.A. message of recovery." Criticism of culture Stanton Peele argued that some AA groups apply the disease model to all problem drinkers, whether or not they are "full-blown" alcoholics. Along with Nancy Shute, Peele has advocated that besides AA, other options should be readily available to those problem drinkers who can manage their drinking with the right treatment. The Big Book says "moderate drinkers" and "a certain type of hard drinker" can stop or moderate their drinking. The Big Book suggests no program for these drinkers, but instead seeks to help drinkers without "power of choice in drink." In 1983, a review stated that the AA program's focus on admission of having a problem increases deviant stigma and strips members of their previous cultural identity, replacing it with the deviant identity. A 1985 study based on observations of AA meetings warned of detrimental iatrogenic effects of the twelve-step philosophy and concluded that AA uses many methods that are also used by cults. A later review disagreed, stating that AA's program bore little resemblance to religious cult practices. In 2014, Vaillant published a paper making the case that Alcoholics Anonymous is not a cult. Literature Alcoholics Anonymous publishes several books, reports, pamphlets, and other media, including a periodical known as the AA Grapevine. Two books are used primarily: Alcoholics Anonymous (the "Big Book") and Twelve Steps and Twelve Traditions, the latter explaining AA's fundamental principles in depth. The full text of each of these two books is available on the AA website at no charge. 575 pages. 192 pages. AA in media Film and television My Name Is Bill W. – dramatized biography of co-founder Bill Wilson. When Love Is Not Enough: The Lois Wilson Story – a 2010 film about the wife of founder Bill Wilson, and the beginnings of Alcoholics Anonymous and Al-Anon. Bill W. – a 2011 biographical documentary film that tells the story of Bill Wilson using interviews, recreations, and rare archival material. A Walk Among the Tombstones (2015), a mystery/suspense film based on Lawrence Block's books featuring Matthew Scudder, a recovering alcoholic detective whose AA membership is a central element of the plot. When a Man Loves a Woman – a school counselor attends AA meetings in a residential treatment facility. Clean and Sober – an addict (alcohol, cocaine) visits an AA meeting to get a sponsor. Days of Wine and Roses – a 1962 film about a married couple struggling with alcoholism. Jack Lemmon's character attends an AA meeting in the film. Drunks – a 1995 film starring Richard Lewis as an alcoholic who leaves an AA meeting and relapses. The film cuts back and forth between his eventual relapse and the other meeting attendees. Come Back, Little Sheba – A 1952 film based on a play of the same title about a loveless marriage where the husband played by Burt Lancaster is an alcoholic who gets help from two members of the local AA chapter. A 1977 TV drama was also based on the play. I'll Cry Tomorrow – A 1955 film about singer Lillian Roth played by Susan Hayward who goes to AA to help her stop drinking. The film was based on Roth's autobiography of the same name detailing her alcoholism and sobriety through AA. You Kill Me – a 2007 crime-comedy film starring Ben Kingsley as a mob hit man with a drinking problem who is forced to accept a job at a mortuary and go to AA meetings. Smashed – a 2012 drama film starring Mary Elizabeth Winstead. An elementary school teacher's drinking begins to interfere with her job, so she attempts to get sober in AA. Don't Worry, He Won't Get Far on Foot – a 2018 biography/comedy/drama by Gus Van Sant, based on the life of cartoonist John Callahan. Flight — a 2012 film starring Denzel Washington as an alcoholic airline pilot. The movie includes a dramatic representation of a prison AA meeting. In CBS' Elementary, Jonny Lee Miller plays an adaptation of Sherlock Holmes who is a recovering drug addict. Several episodes are centered around AA meetings and the process of recovery. Doctor Sleep – Released in 2019, Doctor Sleep is a sequel to The Shining, directed by Mike Flanagan and based on Stephen King's work. Ewan McGregor stars as a man who, after overcoming his own demons through AA, helps others do the same. See also Adult Children of Alcoholics Al-Anon/Alateen Calix Society Community reinforcement approach and family training (CRAFT) Drug addiction recovery groups Drug rehabilitation Group psychotherapy List of twelve-step groups Long-term effects of alcohol Recovery approach Short-term effects of alcohol consumption Stepping Stones (house), home of Bill W. Washingtonian movement Notes References Bibliography External links A History of Agnostic Groups in AA Reproduction of the 1938 Original Manuscript of Alcoholics Anonymous Addiction and substance abuse organizations Non-profit organizations based in New York City Organizations established in 1935 Therapeutic community Twelve-step programs

2049

https://en.wikipedia.org/wiki/Alpha%20compositing

Alpha compositing

In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. It is often useful to render picture elements (pixels) in separate passes or layers and then combine the resulting 2D images into a single, final image called the composite. Compositing is used extensively in film when combining computer-rendered image elements with live footage. Alpha blending is also used in 2D computer graphics to put rasterized foreground elements over a background. In order to combine the picture elements of the images correctly, it is necessary to keep an associated matte for each element in addition to its color. This matte layer contains the coverage information—the shape of the geometry being drawn—making it possible to distinguish between parts of the image where something was drawn and parts that are empty. Although the most basic operation of combining two images is to put one over the other, there are many operations, or blend modes, that are used. History The concept of an alpha channel was introduced by Alvy Ray Smith and in the late 1970s at the New York Institute of Technology Computer Graphics Lab. Bruce A. Wallace derived the same straight over operator based on a physical reflectance/transmittance model in 1981. A 1984 paper by Thomas Porter and Tom Duff introduced premultiplied alpha using a geometrical approach. The use of the term alpha is explained by Smith as follows: "We called it that because of the classic linear interpolation formula that uses the Greek letter (alpha) to control the amount of interpolation between, in this case, two images A and B". That is, when compositing image A atop image B, the value of in the formula is taken directly from A's alpha channel. Description In a 2D image a color combination is stored for each picture element (pixel), often a combination of red, green and blue (RGB). When alpha compositing is in use, each pixel has an additional numeric value stored in its alpha channel, with a value ranging from 0 to 1. A value of 0 means that the pixel is fully transparent and the color in the pixel beneath will show through. A value of 1 means that the pixel is fully opaque. With the existence of an alpha channel, it is possible to express compositing image operations using a compositing algebra. For example, given two images A and B, the most common compositing operation is to combine the images so that A appears in the foreground and B appears in the background. This can be expressed as A over B. In addition to over, Porter and Duff defined the compositing operators in, held out by (the phrase refers to holdout matting and is usually abbreviated out), atop, and xor (and the reverse operators rover, rin, rout, and ratop) from a consideration of choices in blending the colors of two pixels when their coverage is, conceptually, overlaid orthogonally: As an example, the over operator can be accomplished by applying the following formula to each pixel: Here , and stand for the color components of the pixels in the result, image A and image B respectively, applied to each color channel (red/green/blue) individually, whereas , and are the alpha values of the respective pixels. The over operator is, in effect, the normal painting operation (see Painter's algorithm). The in and out operators are the alpha compositing equivalent of clipping. The two use only the alpha channel of the second image and ignore the color components. In addition, plus defines additive blending. Straight versus premultiplied If an alpha channel is used in an image, there are two common representations that are available: straight (unassociated) alpha and premultiplied (associated) alpha. With straight alpha, the RGB components represent the color of the object or pixel, disregarding its opacity. This is the method implied by the over operator in the previous section. With premultiplied alpha, the RGB components represent the emission of the object or pixel, and the alpha represents the occlusion. The over operator then becomes: Comparison The most significant advantage of premultiplied alpha is that it allows for correct blending, interpolation, and filtering. Ordinary interpolation without premultiplied alpha leads to RGB information leaking out of fully transparent (A=0) regions, even though this RGB information is ideally invisible. When interpolating or filtering images with abrupt borders between transparent and opaque regions, this can result in borders of colors that were not visible in the original image. Errors also occur in areas of semitransparency because the RGB components are not correctly weighted, giving incorrectly high weighting to the color of the more transparent (lower alpha) pixels. Premultiplied alpha may also be used to allow regions of regular alpha blending (e.g. smoke) and regions with additive blending mode (e.g. flame and glitter effects) to be encoded within the same image. This is represented by an RGBA triplet that express emission with no occlusion, such as (0.4, 0.3, 0.2, 0.0). Another advantage of premultiplied alpha is performance; in certain situations, it can reduce the number of multiplication operations (e.g. if the image is used many times during later compositing). The Porter–Duff operations have a simple form only in premultiplied alpha. Some rendering pipelines expose a "straight alpha" API surface, but converts them into premultiplied alpha for performance. One disadvantage of premultiplied alpha is that it can reduce the available relative precision in the RGB values when using integer or fixed-point representation for the color components. This may cause a noticeable loss of quality if the color information is later brightened or if the alpha channel is removed. In practice, this is not usually noticeable because during typical composition operations, such as OVER, the influence of the low-precision color information in low-alpha areas on the final output image (after composition) is correspondingly reduced. This loss of precision also makes premultiplied images easier to compress using certain compression schemes, as they do not record the color variations hidden inside transparent regions, and can allocate fewer bits to encode low-alpha areas. The same “limitations” of lower quantisation bit depths such as 8 bit per channel are also present in imagery without alpha, and this argument is problematic as a result. Examples Assuming that the pixel color is expressed using straight (non-premultiplied) RGBA tuples, a pixel value of (0, 0.7, 0, 0.5) implies a pixel that has 70% of the maximum green intensity and 50% opacity. If the color were fully green, its RGBA would be (0, 1, 0, 0.5). However, if this pixel uses premultiplied alpha, all of the RGB values (0, 0.7, 0) are multiplied, or scaled for occlusion, by the alpha value 0.5, which is appended to yield (0, 0.35, 0, 0.5). In this case, the 0.35 value for the G channel actually indicates 70% green emission intensity (with 50% occlusion). A pure green emission would be encoded as (0, 0.5, 0, 0.5). Knowing whether a file uses straight or premultiplied alpha is essential to correctly process or composite it, as a different calculation is required. Emission with no occlusion cannot be represented in straight alpha. No conversion is available in this case. Image formats supporting alpha channels The most popular image formats that support the alpha channel are PNG and TIFF. GIF supports alpha channels, but is considered to be inefficient when it comes to file size. Support for alpha channels is present in some video codecs, such as Animation and Apple ProRes 4444 of the QuickTime format, or in the Techsmith multi-format codec. The file format BMP generally does not support this channel; however, in different formats such as 32-bit (888-8) or 16-bit (444-4) it is possible to save the alpha channel, although not all systems or programs are able to read it: it is exploited mainly in some video games or particular applications; specific programs have also been created for the creation of these BMPs. Gamma correction The RGB values of typical digital images do not directly correspond to the physical light intensities, but are rather compressed by a gamma correction function: This transformation better utilizes the limited number of bits in the encoded image by choosing that better matches the non-linear human perception of luminance. Accordingly, computer programs that deal with such images must decode the RGB values into a linear space (by undoing the gamma-compression), blend the linear light intensities, and re-apply the gamma compression to the result: When combined with premultiplied alpha, pre-multiplication is done in linear space, prior to gamma compression. This results in the following formula: Note that the alpha channel may or may not undergo gamma-correction, even when the color channels do. Other transparency methods Although used for similar purposes, transparent colors and image masks do not permit the smooth blending of the superimposed image pixels with those of the background (only whole image pixels or whole background pixels allowed). A similar effect can be achieved with a 1-bit alpha channel, as found in the 16-bit RGBA high color mode of the Truevision TGA image file format and related TARGA and AT-Vista/NU-Vista display adapters' high color graphic mode. This mode devotes 5 bits for every primary RGB color (15-bit RGB) plus a remaining bit as the "alpha channel". Dithering can be used to simulate partial occlusion where only 1-bit alpha is available. For some applications, a single alpha channel is not sufficient: a stained-glass window, for instance, requires a separate transparency channel for each RGB channel to model the red, green and blue transparency separately. More alpha channels can be added for accurate spectral color filtration applications. Some order-independent transparency methods replace the over operator with a commutative approximation. See also References External links Compositing Digital Images - Thomas Porter and Tom Duff (Original Paper) Image Compositing Fundamentals Understand Compositing and Color extensions in SVG 1.2 in 30 minutes! Alpha Matting and Premultiplication Computer graphics algorithms

2052

https://en.wikipedia.org/wiki/Array%20%28data%20structure%29

Array (data structure)

In computer science, an array is a data structure consisting of a collection of elements (values or variables), of same memory size, each identified by at least one array index or key. An array is stored such that the position of each element can be computed from its index tuple by a mathematical formula. The simplest type of data structure is a linear array, also called one-dimensional array. For example, an array of ten 32-bit (4-byte) integer variables, with indices 0 through 9, may be stored as ten words at memory addresses 2000, 2004, 2008, ..., 2036, (in hexadecimal: 0x7D0, 0x7D4, 0x7D8, ..., 0x7F4) so that the element with index i has the address 2000 + (i × 4). The memory address of the first element of an array is called first address, foundation address, or base address. Because the mathematical concept of a matrix can be represented as a two-dimensional grid, two-dimensional arrays are also sometimes called "matrices". In some cases the term "vector" is used in computing to refer to an array, although tuples rather than vectors are the more mathematically correct equivalent. Tables are often implemented in the form of arrays, especially lookup tables; the word "table" is sometimes used as a synonym of array. Arrays are among the oldest and most important data structures, and are used by almost every program. They are also used to implement many other data structures, such as lists and strings. They effectively exploit the addressing logic of computers. In most modern computers and many external storage devices, the memory is a one-dimensional array of words, whose indices are their addresses. Processors, especially vector processors, are often optimized for array operations. Arrays are useful mostly because the element indices can be computed at run time. Among other things, this feature allows a single iterative statement to process arbitrarily many elements of an array. For that reason, the elements of an array data structure are required to have the same size and should use the same data representation. The set of valid index tuples and the addresses of the elements (and hence the element addressing formula) are usually, but not always, fixed while the array is in use. The term "array" may also refer to an array data type, a kind of data type provided by most high-level programming languages that consists of a collection of values or variables that can be selected by one or more indices computed at run-time. Array types are often implemented by array structures; however, in some languages they may be implemented by hash tables, linked lists, search trees, or other data structures. The term is also used, especially in the description of algorithms, to mean associative array or "abstract array", a theoretical computer science model (an abstract data type or ADT) intended to capture the essential properties of arrays. History The first digital computers used machine-language programming to set up and access array structures for data tables, vector and matrix computations, and for many other purposes. John von Neumann wrote the first array-sorting program (merge sort) in 1945, during the building of the first stored-program computer. Array indexing was originally done by self-modifying code, and later using index registers and indirect addressing. Some mainframes designed in the 1960s, such as the Burroughs B5000 and its successors, used memory segmentation to perform index-bounds checking in hardware. Assembly languages generally have no special support for arrays, other than what the machine itself provides. The earliest high-level programming languages, including FORTRAN (1957), Lisp (1958), COBOL (1960), and ALGOL 60 (1960), had support for multi-dimensional arrays, and so has C (1972). In C++ (1983), class templates exist for multi-dimensional arrays whose dimension is fixed at runtime as well as for runtime-flexible arrays. Applications Arrays are used to implement mathematical vectors and matrices, as well as other kinds of rectangular tables. Many databases, small and large, consist of (or include) one-dimensional arrays whose elements are records. Arrays are used to implement other data structures, such as lists, heaps, hash tables, deques, queues, stacks, strings, and VLists. Array-based implementations of other data structures are frequently simple and space-efficient (implicit data structures), requiring little space overhead, but may have poor space complexity, particularly when modified, compared to tree-based data structures (compare a sorted array to a search tree). One or more large arrays are sometimes used to emulate in-program dynamic memory allocation, particularly memory pool allocation. Historically, this has sometimes been the only way to allocate "dynamic memory" portably. Arrays can be used to determine partial or complete control flow in programs, as a compact alternative to (otherwise repetitive) multiple IF statements. They are known in this context as control tables and are used in conjunction with a purpose built interpreter whose control flow is altered according to values contained in the array. The array may contain subroutine pointers (or relative subroutine numbers that can be acted upon by SWITCH statements) that direct the path of the execution. Element identifier and addressing formulas When data objects are stored in an array, individual objects are selected by an index that is usually a non-negative scalar integer. Indexes are also called subscripts. An index maps the array value to a stored object. There are three ways in which the elements of an array can be indexed: 0 (zero-based indexing) The first element of the array is indexed by subscript of 0. 1 (one-based indexing) The first element of the array is indexed by subscript of 1. n (n-based indexing) The base index of an array can be freely chosen. Usually programming languages allowing n-based indexing also allow negative index values and other scalar data types like enumerations, or characters may be used as an array index. Using zero based indexing is the design choice of many influential programming languages, including C, Java and Lisp. This leads to simpler implementation where the subscript refers to an offset from the starting position of an array, so the first element has an offset of zero. Arrays can have multiple dimensions, thus it is not uncommon to access an array using multiple indices. For example, a two-dimensional array A with three rows and four columns might provide access to the element at the 2nd row and 4th column by the expression A[1][3] in the case of a zero-based indexing system. Thus two indices are used for a two-dimensional array, three for a three-dimensional array, and n for an n-dimensional array. The number of indices needed to specify an element is called the dimension, dimensionality, or rank of the array. In standard arrays, each index is restricted to a certain range of consecutive integers (or consecutive values of some enumerated type), and the address of an element is computed by a "linear" formula on the indices. One-dimensional arrays A one-dimensional array (or single dimension array) is a type of linear array. Accessing its elements involves a single subscript which can either represent a row or column index. As an example consider the C declaration int anArrayName[10]; which declares a one-dimensional array of ten integers. Here, the array can store ten elements of type int . This array has indices starting from zero through nine. For example, the expressions anArrayName[0] and anArrayName[9] are the first and last elements respectively. For a vector with linear addressing, the element with index i is located at the address , where B is a fixed base address and c a fixed constant, sometimes called the address increment or stride. If the valid element indices begin at 0, the constant B is simply the address of the first element of the array. For this reason, the C programming language specifies that array indices always begin at 0; and many programmers will call that element "zeroth" rather than "first". However, one can choose the index of the first element by an appropriate choice of the base address B. For example, if the array has five elements, indexed 1 through 5, and the base address B is replaced by , then the indices of those same elements will be 31 to 35. If the numbering does not start at 0, the constant B may not be the address of any element. Multidimensional arrays For a multidimensional array, the element with indices i,j would have address B + c · i + d · j, where the coefficients c and d are the row and column address increments, respectively. More generally, in a k-dimensional array, the address of an element with indices i1, i2, ..., ik is B + c1 · i1 + c2 · i2 + … + ck · ik. For example: int a[2][3]; This means that array a has 2 rows and 3 columns, and the array is of integer type. Here we can store 6 elements they will be stored linearly but starting from first row linear then continuing with second row. The above array will be stored as a11, a12, a13, a21, a22, a23. This formula requires only k multiplications and k additions, for any array that can fit in memory. Moreover, if any coefficient is a fixed power of 2, the multiplication can be replaced by bit shifting. The coefficients ck must be chosen so that every valid index tuple maps to the address of a distinct element. If the minimum legal value for every index is 0, then B is the address of the element whose indices are all zero. As in the one-dimensional case, the element indices may be changed by changing the base address B. Thus, if a two-dimensional array has rows and columns indexed from 1 to 10 and 1 to 20, respectively, then replacing B by will cause them to be renumbered from 0 through 9 and 4 through 23, respectively. Taking advantage of this feature, some languages (like FORTRAN 77) specify that array indices begin at 1, as in mathematical tradition while other languages (like Fortran 90, Pascal and Algol) let the user choose the minimum value for each index. Dope vectors The addressing formula is completely defined by the dimension d, the base address B, and the increments c1, c2, ..., ck. It is often useful to pack these parameters into a record called the array's descriptor or stride vector or dope vector. The size of each element, and the minimum and maximum values allowed for each index may also be included in the dope vector. The dope vector is a complete handle for the array, and is a convenient way to pass arrays as arguments to procedures. Many useful array slicing operations (such as selecting a sub-array, swapping indices, or reversing the direction of the indices) can be performed very efficiently by manipulating the dope vector. Compact layouts Often the coefficients are chosen so that the elements occupy a contiguous area of memory. However, that is not necessary. Even if arrays are always created with contiguous elements, some array slicing operations may create non-contiguous sub-arrays from them. There are two systematic compact layouts for a two-dimensional array. For example, consider the matrix In the row-major order layout (adopted by C for statically declared arrays), the elements in each row are stored in consecutive positions and all of the elements of a row have a lower address than any of the elements of a consecutive row: {| class="wikitable" |- | 1 || 2 || 3 || 4 || 5 || 6 || 7 || 8 || 9 |} In column-major order (traditionally used by Fortran), the elements in each column are consecutive in memory and all of the elements of a column have a lower address than any of the elements of a consecutive column: {| class="wikitable" |- | 1 || 4 || 7 || 2 || 5 || 8 || 3 || 6 || 9 |} For arrays with three or more indices, "row major order" puts in consecutive positions any two elements whose index tuples differ only by one in the last index. "Column major order" is analogous with respect to the first index. In systems which use processor cache or virtual memory, scanning an array is much faster if successive elements are stored in consecutive positions in memory, rather than sparsely scattered. This is known as spatial locality, which is a type of locality of reference. Many algorithms that use multidimensional arrays will scan them in a predictable order. A programmer (or a sophisticated compiler) may use this information to choose between row- or column-major layout for each array. For example, when computing the product A·B of two matrices, it would be best to have A stored in row-major order, and B in column-major order. Resizing Static arrays have a size that is fixed when they are created and consequently do not allow elements to be inserted or removed. However, by allocating a new array and copying the contents of the old array to it, it is possible to effectively implement a dynamic version of an array; see dynamic array. If this operation is done infrequently, insertions at the end of the array require only amortized constant time. Some array data structures do not reallocate storage, but do store a count of the number of elements of the array in use, called the count or size. This effectively makes the array a dynamic array with a fixed maximum size or capacity; Pascal strings are examples of this. Non-linear formulas More complicated (non-linear) formulas are occasionally used. For a compact two-dimensional triangular array, for instance, the addressing formula is a polynomial of degree 2. Efficiency Both store and select take (deterministic worst case) constant time. Arrays take linear (O(n)) space in the number of elements n that they hold. In an array with element size k and on a machine with a cache line size of B bytes, iterating through an array of n elements requires the minimum of ceiling(nk/B) cache misses, because its elements occupy contiguous memory locations. This is roughly a factor of B/k better than the number of cache misses needed to access n elements at random memory locations. As a consequence, sequential iteration over an array is noticeably faster in practice than iteration over many other data structures, a property called locality of reference (this does not mean however, that using a perfect hash or trivial hash within the same (local) array, will not be even faster - and achievable in constant time). Libraries provide low-level optimized facilities for copying ranges of memory (such as memcpy) which can be used to move contiguous blocks of array elements significantly faster than can be achieved through individual element access. The speedup of such optimized routines varies by array element size, architecture, and implementation. Memory-wise, arrays are compact data structures with no per-element overhead. There may be a per-array overhead (e.g., to store index bounds) but this is language-dependent. It can also happen that elements stored in an array require less memory than the same elements stored in individual variables, because several array elements can be stored in a single word; such arrays are often called packed arrays. An extreme (but commonly used) case is the bit array, where every bit represents a single element. A single octet can thus hold up to 256 different combinations of up to 8 different conditions, in the most compact form. Array accesses with statically predictable access patterns are a major source of data parallelism. Comparison with other data structures Dynamic arrays or growable arrays are similar to arrays but add the ability to insert and delete elements; adding and deleting at the end is particularly efficient. However, they reserve linear (Θ(n)) additional storage, whereas arrays do not reserve additional storage. Associative arrays provide a mechanism for array-like functionality without huge storage overheads when the index values are sparse. For example, an array that contains values only at indexes 1 and 2 billion may benefit from using such a structure. Specialized associative arrays with integer keys include Patricia tries, Judy arrays, and van Emde Boas trees. Balanced trees require O(log n) time for indexed access, but also permit inserting or deleting elements in O(log n) time, whereas growable arrays require linear (Θ(n)) time to insert or delete elements at an arbitrary position. Linked lists allow constant time removal and insertion in the middle but take linear time for indexed access. Their memory use is typically worse than arrays, but is still linear. An Iliffe vector is an alternative to a multidimensional array structure. It uses a one-dimensional array of references to arrays of one dimension less. For two dimensions, in particular, this alternative structure would be a vector of pointers to vectors, one for each row(pointer on c or c++). Thus an element in row i and column j of an array A would be accessed by double indexing (A[i][j] in typical notation). This alternative structure allows jagged arrays, where each row may have a different size—or, in general, where the valid range of each index depends on the values of all preceding indices. It also saves one multiplication (by the column address increment) replacing it by a bit shift (to index the vector of row pointers) and one extra memory access (fetching the row address), which may be worthwhile in some architectures. Dimension The dimension of an array is the number of indices needed to select an element. Thus, if the array is seen as a function on a set of possible index combinations, it is the dimension of the space of which its domain is a discrete subset. Thus a one-dimensional array is a list of data, a two-dimensional array is a rectangle of data, a three-dimensional array a block of data, etc. This should not be confused with the dimension of the set of all matrices with a given domain, that is, the number of elements in the array. For example, an array with 5 rows and 4 columns is two-dimensional, but such matrices form a 20-dimensional space. Similarly, a three-dimensional vector can be represented by a one-dimensional array of size three. See also Dynamic array Parallel array Variable-length array Bit array Array slicing Offset (computer science) Row- and column-major order Stride of an array References External links

2061

https://en.wikipedia.org/wiki/Automatic%20number%20announcement%20circuit

Automatic number announcement circuit

An automatic number announcement circuit (ANAC) is a component of a central office of a telephone company that provides a service to installation and service technicians to determine the telephone number of a telephone line. The facility has a telephone number that may be called to listen to an automatic announcement that includes the caller's telephone number. The ANAC facility is useful primarily during the installation of landline telephones to quickly identify one of multiple wire pairs in a bundle or at a termination point. Operation By connecting a test telephone set, a technician calls the local telephone number of the automatic number announcement service. This call is connected to equipment at the central office that uses automatic equipment to announce the telephone number of the line calling in. The main purpose of this system is to allow telephone company technicians to identify the telephone line they are connected to. Automatic number announcement systems are based on automatic number identification. They are intended for use by phone company technicians, the ANAC system bypasses customer features, such as unlisted numbers, caller ID blocking, and outgoing call blocking. Installers of multi-line business services where outgoing calls from all lines display the company's main number on call display can use ANAC to identify a specific line in the system, even if CID displays every line as "line one". Most ANAC systems are provider-specific in each wire center, while others are regional or state-/province- or area-code-wide. No official lists of ANAC numbers are published, as telephone companies guard against abuse that would interfere with availability for installers. Exchange prefixes for testing The North American Numbering Plan reserves the exchange (central office) prefixes 958 and 959 for plant testing purposes. Code 959 with three or four additional digits is dedicated for access to office test lines in local exchange carrier and interoffice carrier central offices. The specifications define several test features for line conditions, such as quiet line and busy line, and test tones transmitted to callers. Telephone numbers are assigned for ring back to test the ringer when installing telephone sets, milliwatt tone (a number simply answers with a continuous test tone) and a loop around (which connects a call to another inbound call to the same or another test number). ANAC services are typically installed in the 958 range, which is intended for communications between central offices. In some area codes, multiple additional prefixes may be reserved for test purposes. Many area codes reserved 999; 320 was also formerly reserved in Bell Canada territory. Other carrier-specific North American test numbers include 555-XXXX numbers (such as 555-0311 on Rogers Communications in Canada) or vertical service codes, such as *99 on Cablevision/Optimum Voice in the United States. Telephone numbers Plant testing telephone numbers are carrier-specific, there is no comprehensive list of telephone numbers for ANAC services. In some communities, test numbers change relatively often. In others, a major incumbent carrier might assign a single number which provides test functions on its network across an entire numbering plan area, throughout an entire province or state, or system-wide. Some telecommunication carriers maintain toll-free numbers for ANAC facilities. Some national toll-free numbers provide automatic number identification by speaking the telephone number of the caller, but these are not intended for use in identifying the customer's own phone number. They are used for the agent in a call center to confirm the telephone a customer is calling from, so that the customer's account information can be displayed as a "screen pop" for the next available customer service representative. See also Plant test number Ringback number References Telephone numbers Telephony signals

2067

https://en.wikipedia.org/wiki/Ann%20Arbor%2C%20Michigan

Ann Arbor, Michigan

Ann Arbor is a city in the U.S. state of Michigan and the seat of government of Washtenaw County. The 2020 census recorded its population to be 123,851, making it the fifth-largest city in Michigan. It is the principal city of the Ann Arbor Metropolitan Statistical Area, which encompasses all of Washtenaw County. Ann Arbor is also included in the Greater Detroit Combined Statistical Area and the Great Lakes megalopolis, the most populated and largest megalopolis in North America. Ann Arbor is home to the University of Michigan. The university significantly shapes Ann Arbor's economy as it employs about 30,000 workers, including about 12,000 in its medical center. The city's economy is also centered on high technology, with several companies drawn to the area by the university's research and development infrastructure. Ann Arbor was founded in 1824. It was named after the wives of the village's founders, both named Ann, and the stands of bur oak trees they found at the site of the town. The city's population grew at a rapid rate in the early to mid-20th century. History Before founding as Ann Arbor The lands of present-day Ann Arbor were part of Massachusetts's western claim after the French and Indian War (1754–1763), bounded by the latitudes of Massachusetts Bay Colony's original charter, to which it was entitled by its interpretation of its original sea-to-sea grant from The British Crown. Massachusetts ceded the claim to the federal government as part of the Northwest Territory after April 19, 1785. In about 1774, the Potawatomi founded two villages in the area of what is now Ann Arbor. 19th century Ann Arbor was founded in 1824 by land speculators John Allen and Elisha Walker Rumsey. On May 25, 1824, the town plat was registered with Wayne County as the Village of Annarbour, the earliest known use of the town's name. Allen and Rumsey decided to name it for their wives, both named Ann, and for the stands of bur oak in the of land they purchased for $800 from the federal government at $1.25 per acre. The local Ojibwa named the settlement kaw-goosh-kaw-nick, after the sound of Allen's sawmill. Ann Arbor became the seat of Washtenaw County in 1827 and was incorporated as a village in 1833. The Ann Arbor Land Company, a group of speculators, set aside of undeveloped land and offered it to the state of Michigan as the site of the state capitol, but lost the bid to Lansing. In 1837, the property was accepted instead as the site of the University of Michigan. Since the university's establishment in the city in 1837, the histories of the University of Michigan and Ann Arbor have been closely linked. The town became a regional transportation hub in 1839 with the arrival of the Michigan Central Railroad, and a north–south railway connecting Ann Arbor to Toledo and other markets to the south was established in 1878. Throughout the 1840s and the 1850s settlers continued to come to Ann Arbor. While the earlier settlers were primarily of British ancestry, the newer settlers also consisted of Germans, Irish, and Black people. In 1851, Ann Arbor was chartered as a city, though the city showed a drop in population during the Depression of 1873. It was not until the early 1880s that Ann Arbor again saw robust growth, with new immigrants from Greece, Italy, Russia, and Poland. 20th century Ann Arbor saw increased growth in manufacturing, particularly in milling. Ann Arbor's Jewish community also grew after the turn of the 20th century, and its first and oldest synagogue, Beth Israel Congregation, was established in 1916. In 1960, Ann Arbor voters approved a $2.3 million bond issue to build the current city hall, which was designed by architect Alden B. Dow. The City Hall opened in 1963. In 1995, the building was renamed the Guy C. Larcom, Jr. Municipal Building in honor of the longtime city administrator who championed the building's construction. During the 1960s and 1970s, the city gained a reputation as an important center for liberal politics. Ann Arbor also became a locus for left-wing activism and anti-Vietnam War movement, as well as the student movement. The first major meetings of the national left-wing campus group Students for a Democratic Society took place in Ann Arbor in 1960; in 1965, the city was home to the first U.S. teach-in against the Vietnam War. During the ensuing 15 years, many countercultural and New Left enterprises sprang up and developed large constituencies within the city. These influences washed into municipal politics during the early and mid-1970s when three members of the Human Rights Party (HRP) won city council seats on the strength of the student vote. During their time on the council, HRP representatives fought for measures including pioneering antidiscrimination ordinances, measures decriminalizing marijuana possession, and a rent-control ordinance; many of these progressive organizations remain in effect today in modified form. Two religious-conservative institutions were created in Ann Arbor; the Word of God (established in 1967), a charismatic inter-denominational movement; and the Thomas More Law Center (established in 1999). Following a 1956 vote, the city of East Ann Arbor merged with Ann Arbor to encompass the eastern sections of the city. 21st century In the past several decades, Ann Arbor has grappled with the effects of sharply rising land values, gentrification, and urban sprawl stretching into outlying countryside. On November 4, 2003, voters approved a greenbelt plan under which the city government bought development rights on agricultural parcels of land adjacent to Ann Arbor to preserve them from sprawling development. Since then, a vociferous local debate has hinged on how and whether to accommodate and guide development within city limits. Ann Arbor consistently ranks in the "top places to live" lists published by various mainstream media outlets every year. In 2008, it was ranked by CNNMoney.com 27th out of 100 "America's best small cities". And in 2010, Forbes listed Ann Arbor as one of the most liveable cities in the United States. In 2016, the city changed mayoral terms from two years to four. Until 2017, City Council held annual elections in which half of the seats (one from each ward) were elected to 2-year terms. These elections were staggered, with each ward having one of its seats up for election in odd years and its other seat up for election in even years. Beginning in 2018 the city council has had staggered elections to 4-year terms in even years. This means that half of the members (one from each ward) are elected in presidential election years, while the other half are elected in mid-term election years. To facilitate this change in scheduling, the 2017 election elected members to terms that lasted 3-years. Geography Ann Arbor is located along the Huron River, which flows southeast through the city on its way to Lake Erie. It is the central core of the Ann Arbor, MI Metropolitan Statistical Area, which consists of the whole of Washtenaw County, but is also a part of the Metro Detroit Combined Statistical Area designated by the U.S. Census Bureau. While it borders only Townships, the built-up nature of the sections of Pittsfield and Ypsilanti townships between Ann Arbor and the city of Ypsilanti make the two effectively a single urban area. Landscape The landscape of Ann Arbor consists of hills and valleys, with the terrain becoming steeper near the Huron River. The elevation ranges from about along the Huron River to on the city's west side, near the intersection of Maple Road and Pauline Blvd. Ann Arbor Municipal Airport, which is south of the city at , has an elevation of . Ann Arbor is nicknamed "Tree Town," both due to its name and to the dense forestation of its parks and residential areas. The city contains more than 50,000 trees along its streets and an equal number in parks. In recent years, the emerald ash borer has destroyed many of the city's approximately 10,500 ash trees. The city contains 157 municipal parks ranging from small neighborhood green spots to large recreation areas. Several large city parks and a university park border sections of the Huron River. Fuller Recreation Area, near the University Hospital complex, contains sports fields, pedestrian and bike paths, and swimming pools. The Nichols Arboretum, owned by the University of Michigan, is a arboretum that contains hundreds of plant and tree species. It is on the city's east side, near the university's Central Campus. Located across the Huron River just beyond the university's North Campus is the university's Matthaei Botanical Gardens, which contains 300 acres of gardens and a large tropical conservatory as well as a wildflower garden specializing in the vegetation of the southern Great Lakes Region. Cityscape The cityscape of Ann Arbor is heavily influenced by the University of Michigan, with 22% of downtown and 9.4% of the total land owned by the university. The downtown Central Campus contains some of the oldest extant structures in the city — including the President's House, built in 1840 — and separates the South University District from the other three downtown commercial districts. These other three districts, Kerrytown, State Street, and Main Street are contiguous near the northwestern corner of the university. Three commercial areas south of downtown include the areas near I-94 and Ann Arbor-Saline Road, Briarwood Mall, and the South Industrial area. Other commercial areas include the Arborland/Washtenaw Avenue and Packard Road merchants on the east side, the Plymouth Road area in the northeast, and the Westgate/West Stadium areas on the west side. Downtown contains a mix of 19th- and early-20th-century structures and modern-style buildings, as well as a farmers' market in the Kerrytown district. The city's commercial districts are composed mostly of two- to four-story structures, although downtown and the area near Briarwood Mall contain a small number of high-rise buildings. Ann Arbor's residential neighborhoods contain architectural styles ranging from classic 19th- and early 20th-century designs to ranch-style houses. Among these homes are a number of kit houses built in the early 20th century. Contemporary-style houses are farther from the downtown district. Surrounding the University of Michigan campus are houses and apartment complexes occupied primarily by student renters. Tower Plaza, a 26-story condominium building located between the University of Michigan campus and downtown, is the tallest building in Ann Arbor. The 19th-century buildings and streetscape of the Old West Side neighborhood have been preserved virtually intact; in 1972, the district was listed on the National Register of Historic Places, and it is further protected by city ordinances and a nonprofit preservation group. Climate Ann Arbor has a typically Midwestern humid continental climate (Köppen Dfa), which is influenced by the Great Lakes. There are four distinct seasons: winters are cold and snowy, with average highs around . Summers are warm to hot and humid, with average highs around and with slightly more precipitation. Spring and autumn are transitional between the two. The area experiences lake effect weather, primarily in the form of increased cloudiness during late fall and early winter. The monthly daily average temperature in July is , while the same figure for January is . Temperatures reach or exceed on 10 days, and drop to or below on 4.6 nights. Precipitation tends to be the heaviest during the summer months, but most frequent during winter. Snowfall, which normally occurs from November to April but occasionally starts in October, averages per season. The lowest recorded temperature was on February 11, 1885, and the highest recorded temperature was on July 24, 1934. Demographics As of the 2020 U.S. Census, there were 123,851 people and 49,948 households residing in the city. The population density was , making it less densely populated than Detroit proper and its inner-ring suburbs like Oak Park and Ferndale, but more densely populated than outer-ring suburbs like Livonia and Troy. The racial makeup of the city was 67.6% White, 6.8% Black, 0.2% Native American, 15.7% Asian, 0.1% Native Hawaiian or Pacific Islander, 1.8% from other races, and 7.9% from two or more races. Hispanic or Latino residents of any race made up 5.5% of the population. Ann Arbor has a small population of Arab Americans, including students as well as local Lebanese and Palestinians. As of the 2010 U.S. Census, there were 113,934 people, 20,502 families, and 47,060 households residing in the city. The population density was . The racial makeup of the city was 73.0% White (70.4% non-Hispanic White), 7.7% Black, 0.3% Native American, 14.4% Asian, 0.0% Native Hawaiian or Pacific Islander, 1.0% from other races, and 3.6% from two or more races. Hispanic or Latino residents of any race made up 4.1% of the population. In 2013, Ann Arbor had the second-largest community of Japanese citizens in the state of Michigan, at 1,541; this figure trailed only that of Novi, which had 2,666 Japanese nationals. In 2010, out of 47,060 households, 43.6% were family households, 20.1% had individuals under the age of 18 living in them, and 17.0% had individuals over age 65 living in them. Of the 20,502 family households, 19.2% included children under age 18, 34.2% were husband-wife families (estimates did not include same-sex married couples), and 7.1% had a female householder with no husband present. The average household size was 2.17 people, and the average family size was 2.85 people. The median age was 27.8; 14.4% of the population was under age 18, and 9.3% was age 65 or older. By the 2022 American Community Survey, the percentage of married couple households was 33.8%, while male householders with no spouse present (family households) were 26.1%, and female householders with no spouse present (family households) were 30.4%. According to the 2012–2016 American Community Survey estimates, the median household income was $57,697, and the median family income was $95,528. Males over age 25 and with earnings had a median income of $51,682, versus $39,203 for females. The per capita income for the city was $37,158. Nearly a quarter (23.4%) of people and 6.7% of families had incomes below the poverty level. Economy The University of Michigan shapes Ann Arbor's economy significantly. It employs about 30,000 workers, including about 12,000 in the medical center. Other employers are drawn to the area by the university's research and development money, and by its graduates. High tech, health services and biotechnology are other major components of the city's economy; numerous medical offices, laboratories, and associated companies are located in the city. Automobile manufacturers, such as General Motors and Visteon, also employ residents. High tech companies have located in the area since the 1930s, when International Radio Corporation introduced the first mass-produced AC/DC radio (the Kadette, in 1931) as well as the first pocket radio (the Kadette Jr., in 1933). The Argus camera company, originally a subsidiary of International Radio, manufactured cameras in Ann Arbor from 1936 to the 1960s. Current firms include Arbor Networks (provider of Internet traffic engineering and security systems), Arbortext (provider of XML-based publishing software), JSTOR (the digital scholarly journal archive), MediaSpan (provider of software and online services for the media industries), Truven Health Analytics, and ProQuest, which includes UMI. Ann Arbor Terminals manufactured a video-display terminal called the Ann Arbor Ambassador during the 1980s. Barracuda Networks, which provides networking, security, and storage products based on network appliances and cloud services, opened an engineering office in Ann Arbor in 2008 on Depot St. and currently occupies the building previously used as the Borders headquarters on Maynard Street. Duo Security, a cloud-based access security provider protecting thousands of organizations worldwide through two-factor authentication, is headquartered in Ann Arbor. It was formerly a unicorn and continues to be headquartered in Ann Arbor after its acquisition by Cisco Systems. In November 2021, semiconductor test equipment company KLA Corporation opened a new North American headquarters in Ann Arbor. Websites and online media companies in or near the city include All Media Guide, the Weather Underground, and Zattoo. Ann Arbor is the home to Internet2 and the Merit Network, a not-for-profit research and education computer network. Both are located in the South State Commons 2 building on South State Street, which once housed the Michigan Information Technology Center Foundation. The city is also home to a secondary office of Google's AdWords program—the company's primary revenue stream. The recent surge in companies operating in Ann Arbor has led to a decrease in its office and flex space vacancy rates. As of December 31, 2012, the total market vacancy rate for office and flex space is 11.80%, a 1.40% decrease in vacancy from one year previous, and the lowest overall vacancy level since 2003. The office vacancy rate decreased to 10.65% in 2012 from 12.08% in 2011, while the flex vacancy rate decreased slightly more, with a drop from 16.50% to 15.02%. As of 2022, Ann Arbor is home to more than twenty video game and XR studios of varying sizes. The city plays host to a regional chapter of the International Game Developers Association (IGDA) which hosts monthly meetups, presentations, and educational events. Pfizer, once the city's second-largest employer, operated a large pharmaceutical research facility on the northeast side of Ann Arbor. On January 22, 2007, Pfizer announced it would close operations in Ann Arbor by the end of 2008. The facility was previously operated by Warner-Lambert and, before that, Parke-Davis. In December 2008, the University of Michigan Board of Regents approved the purchase of the facilities, and the university anticipates hiring 2,000 researchers and staff during the next 10 years. It is now known as North Campus Research Complex. The city is the home of other research and engineering centers, including those of Lotus Engineering, General Dynamics and the National Oceanic and Atmospheric Administration (NOAA). Other research centers sited in the city are the United States Environmental Protection Agency's National Vehicle and Fuel Emissions Laboratory and the Toyota Technical Center. The city is also home to National Sanitation Foundation International (NSF International), the nonprofit non-governmental organization that develops generally accepted standards for a variety of public health related industries and subject areas. Borders Books, started in Ann Arbor, was opened by brothers Tom and Louis Borders in 1971 with a stock of used books. The Borders chain was based in the city, as was its flagship store until it closed in September 2011. Domino's Pizza's headquarters is near Ann Arbor on Domino's Farms, a Frank Lloyd Wright-inspired complex just northeast of the city. Another Ann Arbor-based company is Zingerman's Delicatessen, which serves sandwiches and has developed businesses under a variety of brand names. Zingerman's has grown into a family of companies which offers a variety of products (bake shop, mail order, creamery, coffee) and services (business education). Flint Ink Corp., another Ann Arbor-based company, was the world's largest privately held ink manufacturer until it was acquired by Stuttgart-based XSYS Print Solutions in October 2005. Avfuel, a global supplier of aviation fuels and services, is also headquartered in Ann Arbor. The controversial detective and private security firm, Pinkerton is headquartered in Ann Arbor, being located on 101 N Main St. Many cooperative enterprises were founded in the city; among those that remain are the People's Food Co-op and the Inter-Cooperative Council at the University of Michigan, a student housing cooperative founded in 1937. There are also three cohousing communities—Sunward, Great Oak, and Touchstone—located immediately to the west of the city limits. Culture Several performing arts groups and facilities are on the University of Michigan's campus, as are museums dedicated to art, archaeology, and natural history and sciences. Founded in 1879, the University Musical Society is an independent performing arts organization that presents over 60 events each year, bringing international artists in music, dance, and theater. Since 2001 Shakespeare in the Arb has presented one play by Shakespeare each June, in a large park near downtown. Regional and local performing arts groups not associated with the university include the Ann Arbor Civic Theatre, the Arbor Opera Theater, the Ann Arbor Symphony Orchestra, the Ann Arbor Ballet Theater, the Ann Arbor Civic Ballet (established in 1954 as Michigan's first chartered ballet company), The Ark, and Performance Network Theatre. Another unique piece of artistic expression in Ann Arbor is the fairy doors. These small portals are examples of installation art and can be found throughout the downtown area. The Ann Arbor Hands-On Museum is located in a renovated and expanded historic downtown fire station. Multiple art galleries exist in the city, notably in the downtown area and around the University of Michigan campus. Aside from a large restaurant scene in the Main Street, South State Street, and South University Avenue areas, Ann Arbor ranks first among U.S. cities in the number of booksellers and books sold per capita. The Ann Arbor District Library maintains four branch outlets in addition to its main downtown building. The city is also home to the Gerald R. Ford Presidential Library. Several annual events—many of them centered on performing and visual arts—draw visitors to Ann Arbor. One such event is the Ann Arbor Art Fairs, a set of four concurrent juried fairs held on downtown streets. Scheduled on Thursday through Sunday of the third week of July, the fairs draw upward of half a million visitors. Another is the Ann Arbor Film Festival, held during the third week of March, which receives more than 2,500 submissions annually from more than 40 countries and serves as one of a handful of Academy Award–qualifying festivals in the United States. Ann Arbor has a long history of openness to marijuana, given Ann Arbor's decriminalization of cannabis, the large number of medical marijuana dispensaries in the city (one dispensary, called People's Co-op, was directly across the street from Michigan Stadium until zoning forced it to move one mile to the west), the large number of pro-marijuana residents, and the annual Hash Bash: an event that is held on the first Saturday of April. Until (at least) the successful passage of Michigan's medical marijuana law, the event had arguably strayed from its initial intent, although for years, a number of attendees have received serious legal responses due to marijuana use on University of Michigan property, which does not fall under the city's progressive and compassionate ticketing program. Ann Arbor is a major center for college sports, most notably at the University of Michigan. Several well-known college sports facilities exist in the city, including Michigan Stadium, the largest American football stadium in the world and the third-largest stadium of any kind in the world. Michigan Stadium has a capacity of 107,601, with the final "extra" seat said to be reserved for and in honor of former athletic director and Hall of Fame football coach Fitz Crisler. The stadium was completed in 1927 and cost more than $950,000 to build. The stadium is colloquially known as "The Big House" due to its status as the largest American football stadium. Crisler Center and Yost Ice Arena play host to the school's basketball (both men's and women's) and ice hockey teams, respectively. Concordia University, a member of the NAIA, also fields sports teams. Ann Arbor is represented in the NPSL by semi-pro soccer team AFC Ann Arbor, a club founded in 2014 who call themselves The Mighty Oak. A person from Ann Arbor is called an "Ann Arborite", and many long-time residents call themselves "townies". The city itself is often called "A²" ("A-squared") or "A2" ("A two") or "AA", "The Deuce" (mainly by Chicagoans), and "Tree Town". With tongue-in-cheek reference to the city's liberal political leanings, some occasionally refer to Ann Arbor as "The People's Republic of Ann Arbor" or "25 square miles surrounded by reality", the latter phrase being adapted from Wisconsin Governor Lee Dreyfus's description of Madison, Wisconsin. In A Prairie Home Companion broadcast from Ann Arbor, Garrison Keillor described Ann Arbor as "a city where people discuss socialism, but only in the fanciest restaurants." Ann Arbor sometimes appears on citation indexes as an author, instead of a location, often with the academic degree MI, a misunderstanding of the abbreviation for Michigan. Government and politics As the county seat of Washtenaw County, the Washtenaw County Trial Court (22nd Circuit Court) is located in Ann Arbor at the Washtenaw County Courthouse on Main Street. Seven judges serve on the court. The 15th Michigan district court, which serves only the city itself, is located within the Ann Arbor Justice Center, immediately next to city hall. The U.S. District Court for the Eastern District of Michigan and Court of Appeals for the Sixth Circuit are also located in downtown Ann Arbor, at the federal building on Liberty Street. Government Ann Arbor has a council-manager form of government, with 11 voting members: the mayor and 10 city council members. Each of the city's five wards are represented by two council members, with the mayor elected at-large during midterm years. Half of the council members are elected in midterm years, with the other in general election years. The mayor is the presiding officer of the city council and has the power to appoint all council committee members as well as board and commission members, with the approval of the city council. The current mayor of Ann Arbor is Christopher Taylor, a Democrat who was elected as mayor in 2014. Day-to-day city operations are managed by a city administrator chosen by the city council. Politics Progressive politics have been particularly strong in municipal government since the 1960s. Voters approved charter amendments that have lessened the penalties for possession of marijuana (1974), and that aim to protect access to abortion in the city should it ever become illegal in the State of Michigan (1990). In 1974, Kathy Kozachenko's victory in an Ann Arbor city-council race made her the country's first openly homosexual candidate to win public office. In 1975, Ann Arbor became the first U.S. city to use instant-runoff voting for a mayoral race. Adopted through a ballot initiative sponsored by the local Human Rights Party, which feared a splintering of the liberal vote, the process was repealed in 1976 after use in only one election. As of April 2021, Democrats hold the mayorship and all ten council seats. Anti-abortion protesters were outnumbered ten-to-one by abortion-rights counterprotesters in 2017. In 2019, The Diag hosted a Stop the Bans rally. In 2022 in the shadow of the Dobbs decision, the diag once again became a rallying point for abortion rights protests, drawing thousands of protesters, including US Rep. Debbie Dingell Senator Debbie Stabenow, and Michigan Lt. Gov. Garlin Gilchrist. Education Primary and secondary education Public schools are part of the Ann Arbor Public Schools (AAPS) district. AAPS has one of the country's leading music programs. In September 2008, 16,539 students had been enrolled in the Ann Arbor Public Schools. Notable schools include Pioneer, Huron, Skyline, and Community high schools, and Ann Arbor Open School. The district has a preschool center with both free and tuition-based programs for preschoolers in the district. The University High School, a "demonstration school" with teachers drawn from the University of Michigan's education program, was part of the school system from 1924 to 1968. Ann Arbor is home to several private schools, including Emerson School, the Father Gabriel Richard High School, Rudolf Steiner School of Ann Arbor (a Prek-12 Waldorf school), Clonlara School, Michigan Islamic Academy, and Greenhills School, a prep school. The city is also home to several charter schools such as Central Academy (Michigan) (PreK-12) of the Global Educational Excellence (GEE) charter school company, Washtenaw Technical Middle College, and Honey Creek Community School. Higher education The University of Michigan dominates the city of Ann Arbor, providing the city with its distinctive college-town character. University buildings are located in the center of the city and the campus is directly adjacent to the State Street and South University downtown areas. Other local colleges and universities include Concordia University Ann Arbor, a Lutheran liberal-arts institution, and Cleary University, a private business school. Washtenaw Community College is located in neighboring Ann Arbor Township. In 2000, the Ave Maria School of Law, a Roman Catholic law school established by Domino's Pizza founder Tom Monaghan, opened in northeastern Ann Arbor, but the school moved to Ave Maria, Florida in 2009, and the Thomas M. Cooley Law School acquired the former Ave Maria buildings for use as a branch campus. Media The Ann Arbor News, owned by the Michigan-based Booth Newspapers chain, was the major newspaper serving Ann Arbor and the rest of Washtenaw County. The newspaper ended its 174-year daily print run in 2009, due to economic difficulties and began producing two printed editions a week under the name AnnArbor.com, It resumed using its former name in 2013. It also produces a daily digital edition named Mlive.com. Another Ann Arbor-based publication that has ceased production was the Ann Arbor Paper, a free monthly. Ann Arbor has been said to be the first significant city to lose its only daily paper. The Ann Arbor Chronicle, an online newspaper, covered local news, including meetings of the library board, county commission, and DDA until September 3, 2014. Current publications in the city include the Ann Arbor Journal (A2 Journal), a weekly community newspaper; the Ann Arbor Observer, a free monthly local magazine; and Current, a free entertainment-focused alt-weekly. The Ann Arbor Business Review covers local business in the area. Car and Driver magazine and Automobile Magazine are also based in Ann Arbor. The University of Michigan is served by many student publications, including the independent Michigan Daily student newspaper, which reports on local, state, and regional issues in addition to campus news. Four major AM radio stations based in or near Ann Arbor are WAAM 1600, a conservative news and talk station; WLBY 1290, a business news and talk station; WDEO 990, Catholic radio; and WTKA 1050, which is primarily a sports station. The city's FM stations include NPR affiliate WUOM 91.7; country station WWWW 102.9; and adult-alternative station WQKL 107.1. Freeform station WCBN-FM 88.3 is a local community radio/college radio station operated by the students of the University of Michigan featuring noncommercial, eclectic music and public-affairs programming. The city is also served by public and commercial radio broadcasters in Ypsilanti, the Lansing/Jackson area, Detroit, Windsor, and Toledo. Ann Arbor is part of the Detroit television market. WPXD channel 31, the owned-and-operated Detroit outlet of the ION Television network, is licensed to the city. Until its sign-off on August 31, 2017, WHTV channel 18, a MyNetworkTV-affiliated station for the Lansing market, was broadcast from a transmitter in Lyndon Township, west of Ann Arbor. Community Television Network (CTN) is a city-provided cable television channel with production facilities open to city residents and nonprofit organizations. Detroit and Toledo-area radio and television stations also serve Ann Arbor, and stations from Lansing and Windsor, Ontario, can be seen in parts of the area. Environment and services The University of Michigan Medical Center, the only teaching hospital in the city, took the number 1 slot in U.S. News & World Report for best hospital in the state of Michigan, as of 2015. The University of Michigan Health System (UMHS) includes University Hospital, C.S. Mott Children's Hospital and Women's Hospital in its core complex. UMHS also operates out-patient clinics and facilities throughout the city. The area's other major medical centers include a large facility operated by the Department of Veterans Affairs in Ann Arbor, and Saint Joseph Mercy Hospital in nearby Superior Township. The city provides sewage disposal and water supply services, with water coming from the Huron River and groundwater sources. There are two water-treatment plants, one main and three outlying reservoirs, four pump stations, and two water towers. These facilities serve the city, which is divided into five water districts. The city's water department also operates four dams along the Huron River—Argo, Barton, Geddes, and Superior—of which Barton and Superior provide hydroelectric power. The city also offers waste management services, with Recycle Ann Arbor handling recycling service. Other utilities are provided by private entities. Electrical power and gas are provided by DTE Energy. AT&T Inc. is the primary wired telephone service provider for the area. Cable TV service is primarily provided by Comcast. A plume of the industrial solvent dioxane is migrating under the city from the contaminated Gelman Sciences, Inc. property on the westside of Ann Arbor. It is currently detected at 0.039 ppb. The Gelman plume is a potential threat to one of the City of Ann Arbor's drinking water sources, the Huron River, which flows through downtown Ann Arbor. Crime In 2015, Ann Arbor was ranked 11th safest among cities in Michigan with a population of over 50,000. It ranked safer than cities such as Royal Oak, Livonia, Canton and Clinton Township. The level of most crimes in Ann Arbor has fallen significantly in the past 20 years. In 1995 there were 294 aggravated assaults, 132 robberies and 43 rapes while in 2015 there were 128 aggravated assaults, 42 robberies and 58 rapes (under the revised definition). Ann Arbor's crime rate was below the national average in 2000. The violent crime rate was further below the national average than the property crime rate; the two rates were 48% and 11% lower than the U.S. average, respectively. Transportation Ann Arbor is considered one of the US's most walkable cities, with one sixth of Ann Arborites walking to work according to the 2020 census. Non-motorized transportation Ann Arbor has made efforts to reverse the trend of car-dependent development. In 2020, the city introduced a Healthy Streets program to encourage non-motorized transportation. The Washtenaw county Border-to-Border Trail connects Ann Arbor to Ypsilanti, mostly along the Huron river, for pedestrians, bicycles and other non-motorized transportation. In 2017, Spin scooters started providing a scooter share program in Ann Arbor, expanding this to include dockless e-bikes in 2023. Walkability Ann Arbor has a gold designation by the Walk Friendly Communities program. Since 2011, the city's property taxes have included a provision for sidewalk maintenance and expansions, expanding the sidewalk network, filling sidewalk gaps, and repairing existing sidewalks. The city has created a sidewalk gap dashboard, which showed 143 miles of sidewalk gaps in May 2022. The downtown was ranked in 2016 is the most walkable neighborhood in mid-sized cities in the Midwest. However, the outlying parts of the city and the township districts between Ann Arbor and Ypsilanti still contain markedly unwalkable areas. Bicycle Between 2019 and 2022 Ann Arbor's Downtown Development Authority built four two-way protected bikeways downtown. Early studies have shown a significant increase in bicycle use downtown since the construction of these bikeways. In 2023, the city reported over 900 bicycle parking spaces downtown, though this is still a small portion compared to the over 8,000 car parking spots for cars. Public transit The Ann Arbor Area Transportation Authority (AAATA), which brands itself as "TheRide", operates public bus services throughout the city and nearby Ypsilanti. The AATA operates Blake Transit Center on Fourth Ave. in downtown Ann Arbor, and the Ypsilanti Transit Center. A separate zero-fare bus service operates within and between the University of Michigan campuses. Since April 2012, route 98 (the "AirRide") connects to Detroit Metro Airport a dozen times a day. There are also limited-stop bus services between Ann Arbor and Chelsea as well as Canton. These two routes, 91 and 92 respectively, are known as the "ExpressRide". Intercity buses Greyhound Lines provides intercity bus service. The Michigan Flyer, a service operated by Indian Trails, cooperates with AAATA for their AirRide and additionally offers bus service to East Lansing. Megabus has direct service to Chicago, Illinois, while a bus service is provided by Amtrak for rail passengers making connections to services in East Lansing and Toledo, Ohio. Railroads The city was a major rail hub, notably for freight traffic between Toledo and ports north of Chicago, Illinois, from 1878 to 1982; however, the Ann Arbor Railroad also provided passenger service from 1878 to 1950, going northwest to Frankfort and Elberta on Lake Michigan and southeast to Toledo. (In Elberta connections to ferries across the Lake could be made.) The city was served by the Michigan Central Railroad starting in 1837. The Ann Arbor and Ypsilanti Street Railway, Michigan's first interurban, served the city from 1891 to 1929. Amtrak, which provides service to the city at the Ann Arbor Train Station, operates the Wolverine train between Chicago and Pontiac, via Detroit. The present-day train station neighbors the city's old Michigan Central Depot, which was renovated as a restaurant in 1970. Airports Ann Arbor Municipal Airport is a small, city-run general aviation airport located south of I-94. Detroit Metropolitan Airport, the area's large international airport, is about east of the city, in Romulus. Willow Run Airport east of the city near Ypsilanti serves freight, corporate, and general aviation clients. Roads and highways The streets in downtown Ann Arbor conform to a grid pattern, though this pattern is less common in the surrounding areas. Major roads branch out from the downtown district like spokes on a wheel to the highways surrounding the city. The city is belted by three freeways: I-94, which runs along the southern and western portion of the city; U.S. Highway 23 (US 23), which primarily runs along the eastern edge of Ann Arbor; and M-14, which runs along the northern edge of the city. Other nearby highways include US 12 (Michigan Ave.), M-17 (Washtenaw Ave.), and M-153 (Ford Rd.). Several of the major surface arteries lead to the I-94/M-14 interchange in the west, US 23 in the east, and the city's southern areas. Sister cities Ann Arbor has seven sister cities: Tübingen, Baden-Württemberg, Germany (since 1965) The schools in Ann Arbor and Tübingen have regular exchanges. Belize City, Belize (since 1967) Hikone, Shiga, Japan (since 1969) The schools in Ann Arbor and Hikone have regular exchanges. Peterborough, Ontario, Canada (since 1983) Juigalpa, Chontales, Nicaragua (since 1986) Dakar, Senegal (since 1997) Remedios, Cuba (since 2003) See also Ann Arbor staging Ardis Publishing List of people from Ann Arbor Metro Detroit Iggy Pop Notes References Works cited Further reading External links City's official website Ann Arbor Area Convention and Visitor's Bureau Collection: "Ann Arbor and the University of Michigan" from the University of Michigan Museum of Art Materials on Ann Arbor's history from HathiTrust Populated places established in 1824 Academic enclaves County seats in Michigan Cities in Washtenaw County, Michigan Metro Detroit 1824 establishments in Michigan Territory Geographical articles missing image alternative text

2075

https://en.wikipedia.org/wiki/Aircraft%20hijacking

Aircraft hijacking

Aircraft hijacking (also known as airplane hijacking, skyjacking, plane hijacking, plane jacking, air robbery, air piracy, or aircraft piracy, with the last term used within the special aircraft jurisdiction of the United States) is the unlawful seizure of an aircraft by an individual or a group. Dating from the earliest of hijackings, most cases involve the pilot being forced to fly according to the hijacker's demands. There have also been incidents where the hijackers have overpowered the flight crew, made unauthorized entry into the cockpit and flown them into buildingsmost notably in the September 11 attacksand in several cases, planes have been hijacked by the official pilot or co-pilot; e.g., Ethiopian Airlines Flight 702. Unlike carjacking or sea piracy, an aircraft hijacking is not usually committed for robbery or theft. Individuals driven by personal gain often divert planes to destinations where they are not planning to go themselves. Some hijackers intend to use passengers or crew as hostages, either for monetary ransom or for some political or administrative concession by authorities. Various motives have driven such occurrences, such as demanding the release of certain high-profile individuals or for the right of political asylum (notably Flight ET 961), but sometimes a hijacking may have been affected by a failed private life or financial distress, as in the case of Aarno Lamminparras in the Oulu Aircraft Hijacking. Hijackings involving hostages have produced violent confrontations between hijackers and the authorities, during negotiation and settlement. In the case of Lufthansa Flight 181 and Air France Flight 139, the hijackers were not satisfied and showed no inclination to surrender, resulting in attempts by special forces to rescue passengers. In most jurisdictions of the world, aircraft hijacking is punishable by life imprisonment or a long prison sentence. In most jurisdictions where the death penalty is a legal punishment, aircraft hijacking is a capital crime, including in China, India, Liberia and the U.S. states of Georgia and Mississippi. History Airplane hijackings have occurred since the early days of flight. These can be classified in the following eras: 1929–1957, 1958–1979, 1980–2000 and 2001–present. Early incidents involved light planes, but this later involved passenger aircraft as commercial aviation became widespread. 1929–1957 Between 1929 and 1957, there were fewer than 20 incidents of reported hijackings worldwide; several occurred in Eastern Europe. One of the first unconfirmed hijackings occurred in December 1929. J. Howard "Doc" DeCelles was flying a postal route for a Mexican firm, Transportes Aeras Transcontinentales, ferrying mail from San Luis Potosí to Torreon and then on to Guadalajara. Saturnino Cedillo, the governor of the state of San Luis Potosí, ordered him to divert. Several other men were also involved, and through an interpreter, DeCelles had no choice but to comply. He was allegedly held captive for several hours under armed guard before being released. The first recorded aircraft hijack took place on February 21, 1931, in Arequipa, Peru. Byron Richards, flying a Ford Tri-Motor, was approached on the ground by armed revolutionaries. He refused to fly them anywhere during a 10-day standoff. Richards was informed that the revolution was successful and he could be freed in return for flying one of the men to Lima. The following year, in September 1932, a Sikorsky S-38 with registration P-BDAD, registered to Nyrba do Brasil, was seized in the company's hangar by three men, who took a hostage. Despite having no flying experience, they managed to take off. However, the aircraft crashed in São João de Meriti, killing the four men. Apparently, the hijack was related to the events of the Constitutionalist Revolution in São Paulo; it is considered to be the first hijack that took place in Brazil. On October 28, 1939, the first murder on a plane took place in Brookfield, Missouri, US. The victim was Carl Bivens, a flight instructor, who was teaching a man named Earnest P. "Larry" Pletch. While airborne in a Taylor Cub monoplane, Pletch shot Bivens twice in the back of the head. Pletch later told prosecutors, "Carl was telling me I had a natural ability and I should follow that line", adding, "I had a revolver in my pocket and without saying a word to him, I took it out of my overalls and I fired a bullet into the back of his head. He never knew what struck him." The Chicago Daily Tribune stated it was one of the most spectacular crimes of the 20th century. Pletch pleaded guilty and was sentenced to life in prison. However, he was released on March 1, 1957, after serving 17 years, and lived until June 2001. In 1942 near Malta, two New Zealanders, a South African and an Englishman achieved the first confirmed in-air hijack when they overpowered their captors aboard an Italian seaplane that was flying them to a prisoner-of-war camp. As they approached an Allied base, they were strafed by Supermarine Spitfires unaware of the aircraft's true operators and forced to land on the water. However, all on board survived to be picked up by a British boat. In the years following World War II, Philip Baum, an aviation security expert suggests that the development of a rebellious youth "piggybacking on to any cause which challenged the status quo or acted in support of those deemed oppressed", may have been a contributor to attacks against the aviation field. The first hijacking of a commercial flight occurred on the Cathay Pacific Miss Macao on July 16, 1948. After this incident and others in the 1950s, airlines recommended that flight crews comply with the hijackers' demands rather than risk a violent confrontation. There were also various hijacking incidents and assaults on planes in China and the Middle East. On 23 July 1956, in the Hungarian People's Republic, seven passengers hijacked a domestic flight of Malév Hungarian Airlines, a Lisunov Li-2 (registration HA-LIG), to escape from behind the Iron Curtain, and flew it to West Germany. The aircraft landed safely at Ingolstadt Air Base without injuries. An aircraft belonging to the airline Lloyd Aereo Boliviano was hijacked in Bolivia on September 26, 1956. The DC-4 was carrying 47 prisoners who were being transported from Santa Cruz, Bolivia, to El Alto, in La Paz. A political group was waiting to take them to a concentration camp located in Carahuara de Carangas, Oruro. The 47 prisoners overpowered the crew and gained control of the aircraft while airborne and diverted the plane to Tartagal, Argentina. Prisoners took control of the aircraft and received instructions to again fly to Salta, Argentina, as the airfield in Tartagal was not big enough. Upon landing, they told the government of the injustice they were subjected to, and received political asylum. On October 22, 1956, French forces hijacked a Moroccan airplane carrying leaders of the Algerian National Liberation Front (FLN) during the ongoing Algerian War. The plane, which was carrying Ahmed Ben Bella, Hocine Aït Ahmed, and Mohamed Boudiaf, was destined to leave from Palma de Mallorca for Tunis where the FLN leaders were to conference with Prime Minister Habib Bourguiba, but French forces redirected the flight to occupied Algiers, where the FLN leaders were arrested. 1958–1979 Between 1958 and 1967, there were approximately 40 hijackings worldwide. Beginning in 1958, hijackings from Cuba to other destinations started to occur; in 1961, hijackings from other destinations to Cuba became prevalent. The first happened on May 1, 1961, on a flight from Miami to Key West. The perpetrator, armed with a knife and gun, forced the captain to land in Cuba. Australia was relatively untouched by the threat of hijackings until July 19, 1960. On that evening, a 22-year-old Russian man attempted to divert Trans Australia Airlines Flight 408 to Darwin or Singapore. The crew were able to subdue the man after a brief struggle. According to the FAA, in the 1960s, there were 100 attempts of hijackings involving U.S. aircraft: 77 successful and 23 unsuccessful. Recognizing the danger early, the FAA issued a directive on July 28, 1961, which prohibits unauthorized persons from carrying concealed firearms and interfering with crew member duties. The Federal Aviation Act of 1958 was amended to impose severe penalties for those seizing control of a commercial aircraft. Airlines could also refuse to transport passengers who were likely to cause danger. That same year, the FAA and Department of Justice created the Peace Officers Program which put trained marshals on flights. A few years later, on May 7, 1964, the FAA adopted a rule requiring that cockpit doors on commercial aircraft be kept locked at all times. In a five-year period (1968–1972) the world experienced 326 hijack attempts, or one every 5.6 days. The incidents were frequent and often just an inconvenience, which resulted in television shows creating parodies. Time magazine even ran a lighthearted comedy piece called "What to Do When the Hijacker Comes". Most incidents occurred in the United States. There were two distinct types: hijackings for transportation elsewhere and hijackings for extortion with the threat of harm. Between 1968 and 1972, there were 90 recorded transport attempts to Cuba. In contrast, there were 26 extortion attempts (see table on the right). The longest and first transcontinental (Los Angeles, Denver, New York, Bangor, Shannon and Rome) hijacking from the US started on 31 October 1969. The Eastern Air Lines Shuttle flight 1320 on May 17, 1970, witnessed the first fatality in the course of a U.S. hijacking. Incidents also became problematic outside of the U.S. For instance, in 1968, El Al Flight 426 was seized by Popular Front for the Liberation of Palestine (PFLP) militants on 23 July, an incident which lasted 40 days, making it one of the longest. This record was later beaten in 1999. As a result of the evolving threat, President Nixon issued a directive in 1970 to promote security at airports, electronic surveillance and multilateral agreements for tackling the problem. The International Civil Aviation Organization (ICAO) issued a report on aircraft hijacking in July 1970. Beginning in 1969 until the end of June 1970, there were 118 incidents of unlawful seizure of aircraft and 14 incidents of sabotage and armed attacks against civil aviation. This involved airlines of 47 countries and more than 7,000 passengers. In this period, 96 people were killed and 57 were injured as a result of hijacking, sabotage and armed attacks. The ICAO stated that this is not isolated to one nation or one region, but a worldwide issue to the safe growth of international civil aviation. Incidents also became notoriousin 1971, a man known as D. B. Cooper hijacked a plane and extorted US$200,000 in ransom before parachuting over Oregon. He was never identified. On August 20, 1971, a Pakistan Air Force T-33 military plane was hijacked prior the Indo-Pakistani war of 1971 in Karachi. Lieutenant Matiur Rahman attacked Officer Rashid Minhas and attempted to land in India. Minhas deliberately crashed the plane into the ground near Thatta to prevent the diversion. Countries around the world continued their efforts to tackle crimes committed on-board planes. The Tokyo Convention, drafted in 1958, established an agreement between signatories that the "state in which the aircraft is registered is competent to exercise jurisdiction over crimes committed on board that aircraft while it is in flight". While the Convention does not make hijacking an international crime, it does contain provisions which obligate the country in which a hijacked aircraft lands to restore the aircraft to its responsible owner, and allow the passengers and crew to continue their journey. The Convention came into force in December 1969. A year later, in December 1970, the Hague Convention was drafted which punishes hijackers, enabling each state to prosecute a hijacker if that state does not extradite them, and to deprive them from asylum from prosecution. On December 5, 1972, the FAA issued emergency rules requiring all passengers and their carry-on baggage to be screened. Airports slowly implemented walk-through metal detectors, hand-searches and X-ray machines, to prohibit weapons and explosive devices. These rules came into effect on January 5, 1973, and were welcomed by most of the public. In 1974, Congress enacted a statute which provided for the death penalty for acts of aircraft piracy resulting in death. Between 1968 and 1977, there were approximately 41 hijackings per year. In the 1970s, in pursuit of their demands for Croatia's independence from the Socialist Republic of Yugoslavia, Croatian nationalists hijacked several civilian airliners, such as Scandinavian Airlines System Flight 130 and TWA Flight 355. 1980–2000 By 1980, airport screening and greater cooperation from the international community led to fewer successful hijackings; the number of events had significantly dropped below the 1968 level. Between 1978 and 1988, there were roughly 26 incidents of hijackings a year. A new threat emerged in the 1980s: organised terrorists destroying aircraft to draw attention. For instance, terrorist groups were responsible for the bombing of Air India Flight 182 over the Irish coast. In 1988, Pan Am Flight 103 was bombed flying over Scotland. Terrorist activity which included hijack attempts in the Middle East were also a cause of concern. During the 1990s, there was relative peace in the United States airspace as the threat of domestic hijacking was seen as a distant memory. Globally, however, hijackings still persisted. Between 1993 and 2003, the highest number of hijackings occurred in 1993 (see table below). This number can be attributed to events in China where hijackers were trying to gain political asylum in Taiwan. Europe and the rest of East Asia were not immune either. On December 26, 1994, Air France Flight 8969 with 172 passengers and crew was hijacked after leaving Algiers. Authorities believed that the goal was to crash the plane into the Eiffel Tower. On June 21, 1995, All Nippon Airways Flight 857 was hijacked by a man claiming to be a member of the Aum Shinrikyo religious cult, demanding the release of its imprisoned leader Shoko Asahara. The incident was resolved when the police stormed the plane. On October 17, 1996, the first hijacking that was brought to an end while airborne was carried out by four operatives of the Austrian special law enforcement unit Cobra on a Russian Aeroflot flight from Malta to Lagos, Nigeria, aboard a Tupolev Tu-154. The operatives escorted inmates detained for deportation to their homelands and were equipped with weapons and gloves. On 12 April 1999, six ELN members hijacked a Fokker 50 of Avianca Flight 9463, flying from Bucaramanga to Bogotá. Many hostages were held for more than a year, and the last hostage was finally freed 19 months after the hijacking. 2001–present On September 11, 2001, four airliners were hijacked by 19 Al-Qaeda extremists: American Airlines Flight 11, United Airlines Flight 175, American Airlines Flight 77 and United Airlines Flight 93. The first two planes were deliberately crashed into the Twin Towers of the World Trade Center in New York City and the third was crashed into The Pentagon in Arlington County, Virginia. The fourth crashed in a field in Stonycreek Township near Shanksville, Pennsylvania after crew and passengers attempted to overpower the hijackers. Authorities believe that the intended target was the U.S. Capitol or the White House in Washington DC. In total, 2,996 people perished and more than 6,000 were injured in the attacks, making the hijackings the deadliest in modern history. Following the attacks, the U.S. government formed the Transportation Security Administration (TSA) to handle airport screening at U.S. airports. Government agencies around the world tightened their airport security, procedures and intelligence gathering. Until the September 11 attacks, there had never been an incident whereby a passenger aircraft was used as a weapon of mass destruction. The 9/11 Commission report stated that it was always assumed that a "hijacking would take the traditional form"; therefore, airline crews never had a contingency plan for a suicide-hijacking. As Patrick Smith, an airline pilot, summarizes: Throughout the mid-2000s, hijackings still occurred but there were much fewer incidents and casualties. The number of incidents had been declining, even before the September 11 attacks. One notable incident in 2006 was the hijacking of Turkish Airlines Flight 1476, flying from Tirana to Istanbul, which was seized by a man named Hakan Ekinci. The aircraft, with 107 passengers and 6 crew, made distress calls to air traffic control and the plane was escorted by military aircraft before landing safely at Brindisi, Italy. In 2007, several incidents occurred in the Middle East and Northern Africa; hijackers in one of these incidents claimed to be affiliated with Al-Qaeda. Towards the end of the decade, AeroMexico experienced its first terror incident when Flight 576 was hijacked by a man demanding to speak with President Calderón. Between 2010 and 2019, the Aviation Safety Network estimates there have been 15 hijackings worldwide with three fatalities. This is a considerably lower figure than in previous decades which can be attributed to greater security enhancements and awareness of September 11–style attacks. On June 29, 2012, an attempt was made to hijack Tianjin Airlines Flight GS7554 from Hotan to Ürümqi in China. More recently was the 2016 hijacking of EgyptAir Flight MS181, involving an Egyptian man who claimed to have a bomb and ordered the plane to land in Cyprus. He surrendered several hours later, after freeing the passengers and crew. Countermeasures As a result of the large number of U.S.–Cuba hijackings in the late 1960s to early 1970s, international airports introduced screening technology such as metal detectors, X-ray machines and explosive detection tools. In the U.S, these rules were enforced starting from January 1973 and were eventually copied around the world. These security measures did make hijacking a "higher-risk proposition" and deter criminals in later decades. Until September 2001, the FAA set and enforced a "layered" system of defense: hijacking intelligence, passenger pre-screening, checkpoint screening and on-board security. The idea was that if one layer were later to fail, another would be able stop a hijacker from boarding a plane. However, the 9/11 Commission found that this layered approach was flawed and unsuitable to prevent the September 11 attacks. The U.S Transportation Security Administration has since strengthened this approach, with a greater emphasis on intelligence sharing. On-board security In the history of hijackings, most incidents involved planes being forced to land at a certain destination with demands. As a result, commercial airliners adopted a "total compliance" rule which taught pilots and cabin crew to comply with the hijackers' demands. Crews advise passengers to sit quietly to increase their chances of survival. The ultimate goal is to land the plane safely and let the security forces handle the situation. The FAA suggested that the longer a hijacking persisted, the more likely it would end peacefully with the hijackers reaching their goal. Although total compliance is still relevant, the events of September 11 changed this paradigm as this technique cannot prevent a murder-suicide hijacking. After the September 11 attacks, it became evident that each hijacking situation needs to be evaluated on a case-by-case basis. Cabin crew, now aware of the severe consequences, have a greater responsibility for maintaining control of their aircraft. Most airlines also give crew members training in self-defense tactics. Ever since the 1970s, crew are taught to be vigilant for suspicious behaviour. For example, passengers who have no carry-on luggage, or are standing next to the cockpit door with fidgety movements. There have been various incidents when crew and passengers intervened to prevent attacks: on December 22, 2001, Richard Reid attempted to ignite explosives on American Airlines Flight 63. In 2009, on Northwest Flight 253, Umar Farouk Abdulmutallab attempted to detonate explosives sewn into his underwear. In 2012, the attempted hijacking of Tianjin Airlines Flight 7554 was stopped when cabin crew placed a trolley in-front of the cockpit door and asked passengers for help. American Airlines Flight 11 In the September 11 attacks, crew on one of the hijacked planes went beyond their scope of training by informing the airline ground crew about the events on board. In separate phone calls, Amy Sweeney and Betty Ong provided information on seat numbers of the attackers and passenger injuries. This helped authorities identify them. Cockpit security As early as 1964, the FAA required cockpit doors on commercial aircraft be kept locked during flight. In 2002, U.S. Congress passed the Arming Pilots Against Terrorism Act, allowing pilots at U.S. airlines to carry guns in the cockpit. Since 2003, these pilots are known as Federal Flight Deck Officers. It is estimated that one in 10 of the 125,000 commercial pilots are trained and armed. Also in 2002, aircraft manufacturers such as Airbus introduced a reinforced cockpit door which is resistant to gunfire and forced entry. Shortly afterwards, the FAA required operators of more than 6,000 aircraft to install tougher cockpit doors by April 9, 2003. Rules were also tightened to restrict cockpit access and make it easier for pilots to lock the doors. In 2015, Germanwings Flight 9525 was seized by the co-pilot and deliberately crashed, while the captain was out. The captain was unable to re-enter the cockpit, because the airline had already reinforced the cockpit door. The European Aviation Safety Agency issued a recommendation for airlines to ensure that at least two people, one pilot and a member of cabin crew, occupy the cockpit during flight. The FAA in the United States enforce a similar rule. Air marshal service Some countries operate a marshal service, which puts members of law enforcement on high-risk flights based on intelligence. Their role is to keep passengers safe, by preventing hijackings and other criminal acts committed on a plane. Federal marshals in the U.S. are required to identify themselves before boarding a plane; marshals of other countries often are not. According to the Congressional Research Service, the budget for the U.S. Federal Air Marshal Service was US$719 million in 2007. Marshals often sit as regular passengers, at the front of the plane to allow observation of the cockpit. Despite the expansion of the marshal service, they cannot be on every plane, and they rarely face a real threat on a flight. Critics have questioned the need for them. Air traffic control There is no generic or set of rules for handling a hijacking situation. Air traffic controllers are expected to exercise their best judgement and expertise when dealing with the apparent consequences of an unlawful interference or hijack. Depending on the jurisdiction, the controller will inform authorities, such as the military, who will escort the hijacked plane. Controllers are expected to keep communications to a minimum and clear the runway for a possible landing. Legislation for downing hijacked aircraft Germany In January 2005, a federal law came into force in Germany, called the , which allows "direct action by armed force" against a hijacked aircraft to prevent a September 11–style attack. However, in February 2006 the Federal Constitutional Court struck down these provisions of the law, stating such preventive measures were unconstitutional and would essentially be state-sponsored murder, even if such an act would save many more lives on the ground. The main reason behind this decision was that the state would effectively be killing innocent hostages in order to avoid a terrorist attack. The Court also ruled that the Minister of Defense is constitutionally not entitled to act in terrorism matters, as this is the duty of the state and federal police forces. President of Germany Horst Köhler urged judicial review of the constitutionality of the Luftsicherheitsgesetz after he signed it into law in 2005. India India published its new anti-hijacking policy in August 2005. The policy came into force after approval from the Cabinet Committee on Security (CCS). The main points of the policy are: Any attempt to hijack will be considered an act of aggression against the country and will prompt a response fit for an aggressor. Hijackers, if captured alive, will be put on trial, convicted, and sentenced to death. Hijackers will be engaged in negotiations only to bring the incident to an end, to comfort passengers and to prevent loss of lives. The hijacked plane will be shot down if it is deemed to become a missile heading for strategic targets. The hijacked plane will be escorted by armed fighter aircraft and will be forced to land. A hijacked grounded plane will not be allowed to take off under any circumstance. United States Prior to the September 11 attacks, countermeasures were focused on "traditional" hijackings. As such, there were no specific rules for handling suicide hijackings, where aircraft would be used as a weapon. Moreover, military response at the time consisted of multiple uncoordinated units, each with its own set of rules of engagement with no unified command structure. Soon after the attacks, however, new rules of engagement were introduced, authorizing the North American Aerospace Defense Command (NORAD)the Air Force command tasked with protecting U.S. airspaceto shoot down hijacked commercial airliners if the plane is deemed a threat to strategic targets. In 2003, the military stated that fighter pilots exercise this scenario several times a week. Other countries Poland and Russia are among other countries that have had laws or directives for shooting down hijacked planes. However, in September 2008 the Polish Constitutional Court ruled that the Polish rules were unconstitutional, and voided them. International law Tokyo Convention The Convention on Offences and Certain Other Acts Committed on Board Aircraft, known as the Tokyo Convention, is an international treaty which entered force on December 4, 1969. , it has been ratified by 186 parties. Article 11 of the Tokyo Convention states the following: The signatories agree that if there is unlawful takeover of an aircraft, or a threat of it on their territory, then they will take all necessary measures to regain or keep control over an aircraft. The captain can also disembark a suspected person on the territory of any country, where the aircraft lands, and that country must agree to it, as stated in Articles 8 and 12 of the convention. Hague Convention The Convention for the Suppression of Unlawful Seizure of Aircraft (known as the Hague Convention) went into effect on October 14, 1971. , the convention has 185 signatories. Montreal Convention The Montreal Convention is a multilateral treaty adopted by a diplomatic meeting of ICAO member states in 1999. It amended important provisions of the Warsaw Convention's regime concerning compensation for the victims of air disasters. In popular culture Superman saves Metropolis from a bombardier hijacked by Japanese spies in the short animated film Japoteurs (1942). The 1997 Hollywood film Air Force One is based on the fictional hijacking of Air Force One. Hijacking is a central theme in the Turbulence movie trilogy. In Mission: Impossible 2, one of the film's antagonists hijacks a plane at the start of the movie. The 2006 film United 93 is based on the real events onboard United Airlines Flight 93 one of the four airlines hijacked during the September 11 attacks. The 2012 film The Dark Knight Rises features an opening sequence of hijacking and crashing an aircraft for the purpose of kidnapping a man and faking his death. The film Con Air features a U.S. Marshals aircraft being hijacked by the maximum-security prisoners on board. The Taking of Flight 847: The Uli Derickson Story was a made-for-TV film based on the actual hijacking of TWA Flight 847, as seen through the eyes of the chief flight attendant Uli Derickson. Passenger 57 depicts an airline security expert trapped on a passenger jet when terrorists seize control. Executive Decision depicts a Boeing 747 carrying 400 passengers being hijacked by Algerian terrorists, and U.S. marine and Army special forces use a reconnaissance aircraft to re-take the plane. Skyjacked is a 1972 film about a crazed Vietnam War veteran hijacking an airliner, demanding to be taken to the Soviet Union. The 1986 film The Delta Force depicted a Special Forces squad tasked with retaking a plane hijacked by Lebanese terrorists, loosely based on the hijacking of TWA Flight 847. The 2004 film The Assassination of Richard Nixon, based on a true incident, depicts a disillusioned tire salesman who attempts to hijack a plane in 1974 and crash it into the White House. His attempt failed and he was mortally wounded by an airport policeman. He killed himself before police stormed the plane. The 2006 film Snakes On a Plane is a fictional story about aircraft piracy through the in-flight release of venomous snakes. In Harold and Kumar 2, two U.S. Air Marshals subdue Harold and Kumar on board a plane after mistaking them for terrorists. The 2011 film Payanam is a movie entirely based on the negotiations and rescue operations done by the Indian security forces in response to a flight hijacking incident. In the 2013 video game Grand Theft Auto V the player is tasked with hijacking a cargo plane carrying a large shipment of weapons by crashing a crop duster into the cargo bay mid-flight and fighting to seize control of the aircraft. The cargo plane is later shot down by the US Air Force, requiring the player to bail out. The 2014 film Non-Stop depicts an aircraft hijacking. The Indian film Neerja is based on the hijacking of Pan Am Flight 73 in Karachi. In 2016, German television broadcast the film , in which a Bundeswehr military pilot shoots down a hijacked passenger plane with 164 people on board that was heading towards a stadium filled with 70,000 people. Following the broadcast, a public vote was called for in Germany, Austria and Switzerland, and 86.9% of viewers voted that the pilot was not guilty of murder. The 2019 film 7500 depicts the struggle of a pilot to land an aircraft and maintain control of its cockpit during a hijacking. The 2023 Apple TV+ original series Hijack stars Idris Elba as Sam, a talented business negotiator, who embarks on a mission to broker a peaceful end to a hijacking of his 7-hour flight from Dubai to London. See also Air pirate Airport security Canadian Air Transport Security Authority Dymshits–Kuznetsov hijacking affair El Al Federal Air Marshal Service Federal Bureau of Investigation Federal crime in the United States List of aircraft hijackings List of Cuba–United States aircraft hijackings Palestinian political violence Terrorism Transportation Security Administration (TSA) United States Department of Homeland Security (DHS) References External links "The First Hijacking Myth" at Fortnight Journal "America's first highjacking" at A Blast From the Past Aviation risks Aviation security Terrorism tactics

2076

https://en.wikipedia.org/wiki/Acropolis%20of%20Athens

Acropolis of Athens

The Acropolis of Athens (; ) is an ancient citadel located on a rocky outcrop above the city of Athens, Greece, and contains the remains of several ancient buildings of great architectural and historical significance, the most famous being the Parthenon. The word Acropolis is from the Greek words (akron, "highest point, extremity") and (polis, "city"). The term acropolis is generic and there are many other acropoleis in Greece. During ancient times the Acropolis of Athens was also more properly known as Cecropia, after the legendary serpent-man Cecrops, the supposed first Athenian king. While there is evidence that the hill was inhabited as early as the fourth millennium BC, it was Pericles (–429 BC) in the fifth century BC who coordinated the construction of the buildings whose present remains are the site's most important ones, including the Parthenon, the Propylaea, the Erechtheion and the Temple of Athena Nike. The Parthenon and the other buildings were seriously damaged during the 1687 siege by the Venetians during the Morean War when gunpowder being stored by the then Turkish rulers in the Parthenon was hit by a Venetian bombardment and exploded. History Early settlement The Acropolis is located on a flattish-topped rock that rises above sea level in the city of Athens, with a surface area of about . While the earliest artifacts date to the Middle Neolithic era, there have been documented habitations in Attica from the Early Neolithic period (6th millennium BC). There is little doubt that a Mycenaean megaron palace stood upon the hill during the late Bronze Age. Nothing of this megaron survives except, probably, a single limestone column base and pieces of several sandstone steps. Soon after the palace was constructed, a Cyclopean massive circuit wall was built, 760 meters long, up to 10 meters high, and ranging from 3.5 to 6 meters thick. From the end of the Helladic IIIB (1300–1200 BC) on, this wall would serve as the main defense for the acropolis until the 5th century. The wall consisted of two parapets built with large stone blocks and cemented with an earth mortar called emplekton (Greek: ἔμπλεκτον). The wall uses typical Mycenaean conventions in that it followed the natural contour of the terrain and its gate, which was towards the south, was arranged obliquely, with a parapet and tower overhanging the incomers' right-hand side, thus facilitating defense. There were two lesser approaches up the hill on its north side, consisting of steep, narrow flights of steps cut in the rock. Homer is assumed to refer to this fortification when he mentions the "strong-built house of Erechtheus" (Odyssey 7.81). At some time before the 13th century BC, an earthquake caused a fissure near the northeastern edge of the Acropolis. This fissure extended some 35 meters to a bed of soft marl in which a well was dug. An elaborate set of stairs was built and the well served as an invaluable, protected source of drinking water during times of siege for some portion of the Mycenaean period. Archaic Acropolis Not much is known about the architectural appearance of the Acropolis until the Archaic era. During the 7th and the 6th centuries BC, the site was controlled by Kylon during the failed Kylonian revolt, and twice by Peisistratos; each of these was attempts directed at seizing political power by coups d'état. Apart from the Hekatompedon mentioned later, Peisistratos also built an entry gate or propylaea. Nevertheless, it seems that a nine-gate wall, the Enneapylon, had been built around the acropolis hill and incorporated the biggest water spring, the Clepsydra, at the northwestern foot. A temple to Athena Polias, the tutelary deity of the city, was erected between 570 and 550 BC. This Doric limestone building, from which many relics survive, is referred to as the Hekatompedon (Greek for "hundred–footed"), Ur-Parthenon (German for "original Parthenon" or "primitive Parthenon"), H–Architecture or Bluebeard temple, after the pedimental three-bodied man-serpent sculpture, whose beards were painted dark blue. Whether this temple replaced an older one or just a sacred precinct or altar is not known. Probably, the Hekatompedon was built where the Parthenon now stands. Between 529 and 520 BC yet another temple was built by the Pisistratids, the Old Temple of Athena, usually referred to as the Arkhaios Neōs (ἀρχαῖος νεώς, "ancient temple"). This temple of Athena Polias was built upon the Dörpfeld foundations, between the Erechtheion and the still-standing Parthenon. The Arkhaios Neōs was destroyed as part of the Achaemenid destruction of Athens during the Second Persian invasion of Greece during 480–479 BC; however, the temple was probably reconstructed during 454 BC, since the treasury of the Delian League was transferred in its opisthodomos. The temple may have been burnt down during 406/405 BC as Xenophon mentions that the old temple of Athena was set afire. Pausanias does not mention it in his 2nd century AD Description of Greece. Around 500 BC the Hekatompedon was dismantled to make place for a new grander building, the Older Parthenon (often referred to as the Pre-Parthenon or Early Parthenon). For this reason, Athenians decided to stop the construction of the Olympieion temple which was connoted with the tyrant Peisistratos and his sons, and, instead, used the Piraeus limestone destined for the Olympieion to build the Older Parthenon. To accommodate the new temple, the south part of the summit was cleared, made level by adding some 8,000 two-ton blocks of limestone, a foundation deep at some points, and the rest was filled with soil kept in place by the retaining wall. However, after the victorious Battle of Marathon in 490 BC, the plan was revised and marble was used instead. The limestone phase of the building is referred to as Pre-Parthenon I and the marble phase as Pre-Parthenon II. In 485 BC, construction stalled to save resources as Xerxes became king of Persia, and war seemed imminent. The Older Parthenon was still under construction when the Persians invaded and sacked the city in 480 BC. The building was burned and looted, along with the Ancient Temple and practically everything else on the rock. After the Persian crisis had subsided, the Athenians incorporated many architectural parts of the unfinished temple (unfluted column drums, triglyphs, metopes, etc.) into the newly built northern curtain wall of the Acropolis, where they served as a prominent "war memorial" and can still be seen today. The devastated site was cleared of debris. Statuary, cult objects, religious offerings, and unsalvageable architectural members were buried ceremoniously in several deeply dug pits on the hill, serving conveniently as a fill for the artificial plateau created around the Classical Parthenon. This "Persian debris" was the richest archaeological deposit excavated on the Acropolis by 1890. The Periclean building program After winning at Eurymedon during 468 BC, Cimon and Themistocles ordered the reconstruction of the southern and northern walls of the Acropolis. Most of the major temples, including the Parthenon, were rebuilt by order of Pericles during the so-called Golden Age of Athens (460–430 BC). Phidias, an Athenian sculptor, and Ictinus and Callicrates, two famous architects, were responsible for the reconstruction. During 437 BC, Mnesicles started building the Propylaea, a monumental gate at the western end of the Acropolis with Doric columns of Pentelic marble, built partly upon the old Propylaea of Peisistratos. These colonnades were almost finished during 432 BC and had two wings, the northern one decorated with paintings by Polygnotus. About the same time, south of the Propylaea, building started on the small Ionic Temple of Athena Nike in Pentelic marble with tetrastyle porches, preserving the essentials of Greek temple design. After an interruption caused by the Peloponnesian War, the temple was finished during the time of Nicias' peace, between 421 BC and 409 BC. Construction of the elegant temple of Erechtheion in Pentelic marble (421–406 BC) was by a complex plan which took account of the extremely uneven ground and the need to circumvent several shrines in the area. The entrance, facing east, is lined with six Ionic columns. Unusually, the temple has two porches, one on the northwest corner borne by Ionic columns, the other, to the southwest, supported by huge female figures or caryatids. The eastern part of the temple was dedicated to Athena Polias, while the western part, serving the cult of the archaic king Poseidon-Erechtheus, housed the altars of Hephaestus and Voutos, brother of Erechtheus. Little is known about the original plan of the interior, which was destroyed by fire during the first century BC and has been rebuilt several times. During the same period, a combination of sacred precincts including the temples of Athena Polias, Poseidon, Erechtheus, Cecrops, Herse, Pandrosos and Aglauros, with its Kore Porch (Porch of the Maidens) or Caryatids' Balcony was begun. Between the temple of Athena Nike and the Parthenon, there was the Sanctuary of Artemis Brauronia (or the Brauroneion), the goddess represented as a bear and worshipped in the deme of Brauron. According to Pausanias, a wooden statue or xoanon of the goddess and a statue of Artemis made by Praxiteles during the 4th century BC were both in the sanctuary. Behind the Propylaea, Phidias' gigantic bronze statue of Athena Promachos ("Athena who fights in the front line"), built between 450 BC and 448 BC, dominated. The base was high, while the total height of the statue was . The goddess held a lance, the gilt tip of which could be seen as a reflection by crews on ships rounding Cape Sounion, and a giant shield on the left side, decorated by Mys with images of the fight between the Centaurs and the Lapiths. Other monuments that have left almost nothing visible to the present day are the Chalkotheke, the Pandroseion, Pandion's sanctuary, Athena's altar, Zeus Polieus's sanctuary and, from Roman times, the circular Temple of Roma and Augustus. Hellenistic and Roman Period During the Hellenistic and Roman periods, many of the existing buildings in the area of the Acropolis were repaired to remedy damage from age and occasionally war. Monuments to foreign kings were erected, notably those of the Attalid kings of Pergamon Attalos II (in front of the NW corner of the Parthenon), and Eumenes II, in front of the Propylaea. These were rededicated during the early Roman Empire to Augustus or Claudius (uncertain) and Agrippa, respectively. Eumenes was also responsible for constructing a stoa on the south slope, similar to that of Attalos in the agora below. During the Julio-Claudian period, the Temple of Roma and Augustus, a small, round edifice about 23 meters from the Parthenon, was to be the last significant ancient construction on the summit of the rock. Around the same time, on the north slope, in a cave next to the one dedicated to Pan since the Classical period, a sanctuary was founded where the archons dedicated to Apollo on assuming office. During 161 AD, on the south slope, the Roman Herodes Atticus built his grand amphitheater or odeon. It was destroyed by the invading Herulians a century later but was reconstructed during the 1950s. During the 3rd century, under threat from a Herulian invasion, repairs were made to the Acropolis walls, and the Beulé Gate was constructed to restrict entrance in front of the Propylaea, thus returning the Acropolis to use as a fortress. Byzantine, Latin, and Ottoman Period During the Byzantine period, the Parthenon was used as a church dedicated to the Virgin Mary. During the Latin Duchy of Athens, the Acropolis functioned as the city's administrative center, with the Parthenon as its cathedral, and the Propylaea as part of the ducal palace. A large tower was added, the Frankopyrgos, demolished during the 19th century. After the Ottoman conquest of Greece, the Parthenon was used as the garrison headquarters of the Turkish army, and the Erechtheum was turned into the governor's private harem. The buildings of the Acropolis suffered significant damage during the 1687 siege by the Venetians in the Morean War. The Parthenon, which was being used as a gunpowder magazine, was hit by artillery shot and damaged severely. During subsequent years, the Acropolis was a site of bustling human activity with many Byzantine, Frankish, and Ottoman structures. The dominant feature during the Ottoman period was a mosque inside the Parthenon, complete with a minaret. The Acropolis was besieged thrice during the Greek War of Independence—two sieges from the Greeks in 1821–1822 and one from the Ottomans in 1826–1827. A new bulwark named after Odysseas Androutsos was built by the Greeks between 1822 and 1825 to protect the recently rediscovered Klepsydra spring, which became the sole fresh water supply of the fortress. After independence, most features that dated from the Byzantine, Frankish, and Ottoman periods were cleared from the site in an attempt to restore the monument to its original form, "cleansed" of all later additions. German Neoclassicist architect Leo von Klenze was responsible for the restoration of the Acropolis in the 19th century, according to German historian Wolf Seidl, as described in his book Bavarians in Greece. Second World War At the beginning of the Axis occupation of Greece in 1941, German soldiers raised the Nazi German War Flag over the Acropolis. It would be taken down by Manolis Glezos and Apostolos Santas in one of the first acts of resistance. In 1944 Greek Prime Minister Georgios Papandreou arrived on the Acropolis to celebrate liberation from the Nazis. Archaeological remains The entrance to the Acropolis was a monumental gateway termed the Propylaea. To the south of the entrance is the tiny Temple of Athena Nike. At the centre of the Acropolis is the Parthenon or Temple of Athena Parthenos (Athena the Virgin). East of the entrance and north of the Parthenon is the temple known as the Erechtheum. South of the platform that forms the top of the Acropolis there are also the remains of the ancient, though often remodelled, Theatre of Dionysus. A few hundred metres away, there is the now partially reconstructed Odeon of Herodes Atticus. All the valuable ancient artifacts are situated in the Acropolis Museum, which resides on the southern slope of the same rock, 280 metres from the Parthenon. Site plan Site plan of the Acropolis at Athens showing the major archaeological remains. Parthenon Old Temple of Athena Erechtheum Statue of Athena Promachos Propylaea Temple of Athena Nike Eleusinion Sanctuary of Artemis Brauronia or Brauroneion Chalkotheke Pandroseion Arrephorion Altar of Athena Sanctuary of Zeus Polieus Sanctuary of Pandion Odeon of Herodes Atticus Stoa of Eumenes Sanctuary of Asclepius or Asclepieion Theatre of Dionysus Eleuthereus Odeon of Pericles Temenos of Dionysus Eleuthereus Mycenaean fountain The Acropolis Restoration Project The Acropolis Restoration Project began in 1975 to reverse the decay of centuries of attrition, pollution, destruction from military actions, and misguided past restorations. The project included the collection and identification of all stone fragments, even small ones, from the Acropolis and its slopes, and the attempt was made to restore as much as possible using reassembled original material (anastylosis), with new marble from Mount Pentelicus used sparingly. All restoration was made using titanium dowels and is designed to be completely reversible, in case future experts decide to change things. A combination of cutting-edge modern technology and extensive research and reinvention of ancient techniques were used. The Parthenon colonnades, largely destroyed by Venetian bombardment during the 17th century, were restored, with many wrongly assembled columns now properly placed. The roof and floor of the Propylaea were partly restored, with sections of the roof made of new marble and decorated with blue and gold inserts, as in the original. Restoration of the Temple of Athena Nike was completed in 2010. A total of 2,675 tons of architectural members were restored, with 686 stones reassembled from fragments of the originals, 905 patched with new marble, and 186 parts made entirely of new marble. A total of 530 cubic meters of new Pentelic marble were used. In 2021, the addition of new reinforced concrete paths to the site to improve accessibility caused controversy among archaeologists. Cultural significance Every four years, the Athenians had a festival called the Great Panathenaea that rivaled the Olympic Games in popularity. During the festival, a procession (believed to be depicted on the Parthenon frieze) traveled through the city via the Panathenaic Way and culminated on the Acropolis. There, a new robe of woven wool (peplos) was placed on either the statue of Athena Polias in the Erechtheum (during the annual Lesser Panathenaea) or the statue of Athena Parthenos in the Parthenon (during the Great Panathenaea, held every four years). Within the later tradition of Western civilization and Classical revival, the Acropolis, from at least the mid-18th century on, has often been invoked as a critical symbol of the Greek legacy and of the glories of Classical Greece. Most of the artifacts from the temple are housed today in the Acropolis Museum at the foot of the ancient rock. Geology The Acropolis is a klippe consisting of two lithostratigraphic units: the Athens schist and the overlying Acropolis limestone. The Athens schist is a soft reddish rock dating from the late Cretaceous period. The original sediments were deposited in a river delta approximately 72 million years ago. The Acropolis limestone dates from the late Jurassic period, predating the underlying Athens schist by about 30 million years. The Acropolis limestone was thrust over the Athens schist by compressional tectonic forces, forming a nappe or overthrust sheet. Erosion of the limestone nappe led to the eventual detachment of the Acropolis, forming the present-day feature. Where the Athens schist and the limestone meet there are springs and karstic caves. Many of the hills in the Athens region were formed by the erosion of the same nappe as the Acropolis. These include the hills of Lykabettos, Areopagus, and Mouseion. The marble used for the buildings of the Acropolis was sourced from the quarries of Mount Pentelicus, a mountain to the northeast of the city. Geological instability The limestone that the Acropolis is built upon is unstable because of the erosion and tectonic shifts that the region is prone to. This instability can cause rock slides that cause damage to the historic site. Various measures have been implemented to protect the site including retaining walls, drainage systems, and rock bolts. These measures work to counter the natural processes that threaten the historic site. Gallery See also Landscaping of the Acropolis of Athens References Notes Bibliography Cohen, Beth. (2010). "Deconstructing the Acropolis: The Acropolis Museum, Athens, opened 20 June 2009 by Bernard Tschumi Architects." American Journal of Archaeology 114:745–753. Goette, Hans Rupprecht. (2001). Athens, Attica, and the Megarid: An Archaeological Guide. London and New York: Routledge. Harris, Diane. (1995). The Treasures of the Parthenon and Erechtheion. New York: Oxford Univ. Press. Neils, Jenifer, ed. (1996). Worshipping Athena: Panathenaia and Parthenon. Madison: Univ. of Wisconsin Press. Pollitt, Jerome J. (1990). The Art of Ancient Greece: Sources and Documents. New York: Cambridge Univ. Press. External links The Acropolis of Athens (Greek Government website) The Acropolis Restoration Project (Greek Government website) The Acropolis of Athens Virtual Tour The Acropolis Museum and the Goddess Athena The Glafka Project UNESCO World Heritage Centre — Acropolis, Athens Ancient Athens 3D Excerpt on the geology of Athens from: A Geological Companion to Greece and the Aegean by Michael and Reynold Higgins, Cornell University Press, 1996 The Acropolis of Athens-Athensguide Tour of Acropolis of Athens, Site of the Parthenon-About.com Athenian Acropolis Videos Acropolis of Athens, Full Reconstruction, animation by the Technological Research Institute, University of Santiago de Compostela, on YouTube Timelapse video of Acropolis during Earth Hour 2010 Timelapse showing how the Acropolis of Athens switched off & on the lights during Earth Hour 2010 The Acropolis in 1955 The Acropolis in 1969 Greek Glory A tour of ancient Greek buildings and monuments in Athens in the 1940s Acropolis of Athens from the old Greek TV show "Ελλάδος Περιήγησις..." (Greece Tours), 1998 Athens, Greece: Ancient Acropolis and Agora by Rick Steves Three dimensional reconstruction of ancient Acropolis Buildings and structures completed in the 5th century BC Ancient Greek culture Ancient Greek sanctuaries in Greece Art of ancient Attica Culture of Greece Former populated places in Greece Landmarks in Athens World Heritage Sites in Greece Tourist attractions in Athens

2078

https://en.wikipedia.org/wiki/Acorn%20Electron

Acorn Electron

The Acorn Electron (nicknamed the Elk inside Acorn and beyond) was a lower-cost alternative to the BBC Micro educational/home computer, also developed by Acorn Computers Ltd, to provide many of the features of that more expensive machine at a price more competitive with that of the ZX Spectrum. It had 32 kilobytes of RAM, and its ROM included BBC BASIC II together with the operating system. Announced in 1982 for a possible release the same year, it was eventually introduced on 25 August 1983 priced at £199. The Electron was able to save and load programs onto audio cassette via a supplied cable that connected it to any standard tape recorder that had the correct sockets. It was capable of bitmapped graphics, and could use either a television set, a colour (RGB) monitor or a monochrome monitor as its display. Several expansions were made available to provide many of the capabilities omitted from the BBC Micro. Acorn introduced a general-purpose expansion unit, the Plus 1, offering analogue joystick and parallel ports, together with cartridge slots into which ROM cartridges, providing software, or other kinds of hardware expansions, such as disc interfaces, could be inserted. Acorn also produced a dedicated disc expansion, the Plus 3, featuring a disc controller and 3.5-inch floppy drive. For a short period, the Electron was reportedly the best selling micro in the United Kingdom, with an estimated 200,000 to 250,000 machines sold over its entire commercial lifespan. With production effectively discontinued by Acorn as early as 1985, and with the machine offered in bundles with games and expansions, later being substantially discounted by retailers, a revival in demand for the Electron supported a market for software and expansions without Acorn's involvement, with its market for games also helping to sustain the continued viability of games production for the BBC Micro. History After Acorn Computers released the BBC Micro, executives believed that the company needed a less-expensive computer for the mass market. In May 1982, when asked about the recently announced Sinclair ZX Spectrum's potential to hurt sales of the BBC Micro, priced at £125 for the 16K model compared to around twice that price for the 16K BBC Model A, Acorn co-founder Hermann Hauser responded that in the third quarter of that year Acorn would release a new £120–150 computer which "will probably be called the Electron", a form of "miniaturised BBC Micro", having 32 KB of RAM and 32 KB of ROM, with "higher resolution graphics than those offered by the Spectrum". Acorn co-founder Chris Curry also emphasised the Electron's role as being "designed to compete with the Spectrum... to get the starting price very low, but not preclude expansion in the long term." In order to reduce component costs, and to prevent cloning, the company reduced the number of chips in the Electron from the 102 on the BBC Micro's motherboard to "something like 12 to 14 chips" with most functionality on a single 2,400-gate Uncommitted Logic Array (ULA). Reports during the second half of 1982 indicated a potential December release, with Curry providing qualified confirmation of such plans, together with an accurate depiction of the machine's form and capabilities, noting that the "massive ULA" would be the "dominant factor" in any pre-Christmas release. However, as the end of the year approached, with the ULA not ready for "main production", the launch of the Electron was to be delayed until the spring. By June 1983, with the planned March release having passed, the launch of the Electron had been rescheduled for the Acorn User Exhibition in August 1983, and the machine was indeed launched at the event. The company expected to ship the Electron before Christmas, and sell 100,000 by February 1984. The price at launch - £199 - remained unchanged from that stated in an announcement earlier in the year, with the machine's nickname within Acorn - the "Elk" - also being reported publicly for perhaps the first time. Reviews were generally favourable, starting with positive impressions based on the physical design of the computer, with one reviewer noting, "The Electron is beautifully designed and built — quite a shock compared to the BBC. Its designer case will look great on the coffee table." Praise was also forthcoming for the Electron's keyboard which was regarded as being better than most of its low-cost peers, with only the VIC-20 being comparable. In one review, the keyboard was even regarded as better than the one in the BBC Micro. The provision of rapid BASIC keyword entry though the combination of the key with various letter keys was also welcomed as a helpful aid to prevent typing errors by "most users", while "touch typists" were still able to type out the keywords in full. Reviewers also welcomed the machine's excellent graphics compared to its rivals, noting that "the graphics are much more flexible and the maximum resolution is many times that of the Spectrum's". The provision of screen modes supporting 80 columns of readable text and graphics resolutions of was described as "unrivalled by every machine up to the BBC Model B itself", although the absence of a teletext mode was considered regrettable. Although valued for its low memory usage characteristics in the BBC Micro, one reviewer considered the absence of a "software simulation of a teletext screen" to be a "lazy omission" even if it would have to be "awfully slow and take up piles of memory". While its speed was acceptable compared to its immediate competition, the Electron was, however, rather slower than the BBC Micro with one review noting that games designed for the BBC Micro ran "at less than half the speed, with very significant effects on their appeal". The reduced performance can be attributed to the use of a 4-bit wide memory system instead of the 8-bit wide memory system of the BBC Micro to reduce cost. Due to needing two accesses to the memory instead of one to fetch each byte, along with contention with the video hardware also needing access, reading or writing RAM was much slower than on the BBC Micro. Reviewers were also disappointed by the single-channel sound, noting that "BBC-style music" and its "imitations of various musical instruments" would not be possible, the latter due to the inability of the sound system to vary the amplitude of sounds. Despite some uncertainty about Acorn's target demographic for the Electron, some noted the potential for the machine in education given its robustness, but also given its price, noting that the high price of BBC Model B machines seemed "rarely justified by their actual practical applications in schools". The introduction of the Electron was seen as potentially leading to competition between Acorn's different models within the schools market rather than creating a broader audience for them, although the potential for more computers in schools, giving more "hands-on" experience for students, was welcomed. Nevertheless, reviewers anticipated that the Electron would sell well at the lower end of the market, with projected sales of 100,000 units by Christmas 1983, helped by the Electron's software compatibility with the BBC Micro and the already established reputation of its predecessor. With parents potentially being convinced of the Electron's educational value, some reviewers foresaw a conflict between parents and "discerning children", the latter merely wanting to play games and preferring models with sound and graphics capabilities more appropriate for gaming. Although Acorn had based its expansion into the United States on the BBC Micro, the company did have plans to introduce the Electron at a later time, with Chris Curry having indicated "a very heavy push overseas" involving both the BBC Micro and Electron. A model for the US market was described in an official book, The Acorn Guide to the Electron, but this model was never produced. Production difficulties at Astec in Malaysia delayed the machine's introduction, forcing Acorn to look to other manufacturers such as AB Electronics in Wales and Wongs in Hong Kong (an original equipment manufacturer making over 30 million circuit boards a year, along with power supplies and plastic housings, for companies such as IBM, Xerox, Atari, and Apple, including units made for Acorn for the BBC Micro). By October 1983, Acorn had received orders for more than 150,000 units, but had production targets of only 25,000 a month before Christmas, meaning that the existing backlog would take more than six months to fulfil. Demand for the Electron was high but only two of WH Smith's London branches had inventory. Ultimately, manufacturing in Malaysia ceased with the anticipated but unspecified number of units having been produced, this having been originally reported as 100,000 units. Acorn's marketing manager, Tom Hohenberg, admitted in early 1984 that "a lot of the trouble stemmed from the ULA" in getting production to the desired levels, but that such difficulties had been resolved, although Acorn faced an order backlog of almost a quarter of a million units. As the company increased production during 1984, however, the British home computer market greatly weakened. Hohenberg later noted that after the 1983 Christmas season, Electron deliveries had increased to meet a demand that was no longer there, with the market having "completely dried up". Acorn's Christmas 1984 sales were greatly below expectations and by March 1985 the company had reduced the Electron's price to £129. With the company's unsuccessful expansion into the United States abandoned, Acorn's financial situation had deteriorated sufficiently to prompt Olivetti to rescue the company by taking a 49.30% ownership stake. Renewed efforts were made to sell the machine, bundling it with Acorn's own expansions and software, such as one package adding the Plus 1 expansion, joysticks and a ROM cartridge game to the base machine for a total price of £219. Acorn committed to supporting the machine "until the end of 1986", continuing to supply it (as the Merlin M2105) to British Telecom as part of the Healthnet communications system, with small-scale manufacturing continuing while existing stocks were being run down. By autumn, retailers appeared eager to discount the computer, with prices in stores as low as £100, reportedly less than the distributor prices of the summer months. As the Christmas season approached, Dixons Retail acquired the remaining Electron inventory to sell, bundled with a cassette recorder and software, at a retail price of £99.95. This deal, from the perspective of a year later, apparently played a significant part in helping to reduce Acorn's unsold inventory from a value of £18 million to around £7.9 million, and in combination with "streamlining corporate activities and reducing overheads", had helped to reduce Acorn's losses from over £20 million to less than £3 million. The deal effectively brought to an end Acorn's interest in the Electron and the lower-cost end of the home computing market, but empowered third-party suppliers whose "inventiveness and initiative" was noted as being in contrast with Acorn's lack of interest in the product and the "false promises" made to its users. However, Acorn subsequently released the Master Compact a model in the Master series of microcomputers with fewer BBC Micro-style ports and a similar expansion connector to that used by the Electron with the home audience specifically in mind. Indeed, prior to its release, the Master Compact had been perceived as the successor to the Electron. Superficial similarities between the Compact and Acorn Communicator, together with technical similarities between the Electron (particularly when expanded in the form of the Merlin M2105) and the Communicator, may also have driven rumours of an updated Electron model. A more substantial emphasis on the "home, music and hobby sectors" came with the appointment of a dedicated marketing manager in 1989 following the launch of the BBC A3000 in the Acorn Archimedes range. Although the Electron presented challenges to developers in terms of the amount of memory available to programs and, particularly for those writing or porting games to the machine, a reduction in hardware features useful for controlling or presenting content on the screen, developers often discovered creative workarounds to deliver commercially successful products, making the business of writing conversions a viable one for some developers. Several features that would later be associated with the BBC Master and Archimedes first appeared as features of Electron expansion units, including ROM cartridge slots and the Advanced Disc Filing System, a hierarchical improvement to the BBC's original Disc Filing System. Having been envisaged as the basis of a portable computer with "a very strong emphasis on communications" during its development, supporting both modem and Econet interfaces, the BT Merlin M2105 product subsequently combined the Electron with communications functionality, and the Acorn Communicator developed such concepts further, introducing networking support. The availability of the Electron at discounted prices from 1985 onwards led to increased demand for third-party software and expansions for the machine. While it may not have been as popular as the Spectrum, Commodore 64 or Amstrad CPC, it did sell in sufficient numbers to ensure that new software titles from established producers were being produced right up until the early 1990s, with mainstream publications dedicated to the machine having effectively supported it for five years beyond the point at which Acorn's own support had ceased. Hardware expansions Since the Electron provided only a selection of video output ports, a cassette port and the expansion connector, a range of additional expansions were produced to offer ports and connections to various peripherals. The first expansions were largely joystick and printer interfaces or sideways ROM boards. For instance, First Byte Computers developed an interface and software which allowed a "switched" joystick to be used with the majority of software titles. This interface became very popular and was sold by W.H. Smiths, Boots, Comet and hundreds of independent computer dealers, selling as many as 23,000 units over a two-year period, helped by a bundling agreement with Dixons. Acorn's own expansion strategy was led by the Plus 1 which offered a combination of ports and cartridge connectors, followed by the Plus 3 disc drive unit, but by early 1986 the more general range of expansions had broadened to include floppy drive and RS423 interfaces, Teletext adapters, and other fundamental enhancements to the base machine. Multi-function expansions Since the Electron's expansion connector was the basis of practically all external hardware expansions for the machine, unless an expansion propagated this connector to others, as was done by the Acorn Plus 3, the capabilities of any given expansion would limit the capabilities of the expanded machine. Thus, expansions offering a single function, such as joystick ports or a printer port, would need to be disconnected if other capabilities were needed, and then reconnected later. Consequently, multi-function expansions offering a combination of different capabilities offered a significant degree of convenience as well as avoiding wear on the expansion connector. Alongside announcements of Acorn's then-unreleased Plus 1, Solidisk previewed a General Purpose Interface for the Electron in early 1984 offering a Centronics printer port, switched joystick port, user port, sideways ROM sockets, and mini-cartridge sockets supported by the 6522 versatile interface adapter (VIA) chip. The Plus 1 itself was released in mid-1984, introducing the influential cartridge format for expansions ultimately used by several other companies. Acorn Plus 1 The Acorn Plus 1 added two ROM cartridge slots, an analogue interface (supporting four channels) and a Centronics parallel port, priced at £59.90. The analogue interface was normally used for joysticks, although trackball and graphics tablet devices were available, and the parallel interface was typically used to connect a printer. Game ROM cartridges would boot automatically. Languages in paged ROM cartridges would take precedence over BASIC. (The slot at the front of the interface took priority if both were populated.) Access to ROM occurred at 2 MHz until RAM access was required, so theoretically programs released on ROM could run up to twice as fast as those released on tape or disc. Despite this, all of the games released on ROM were packaged as ROM filing system cartridges, from which the micro would load programs into main memory in exactly the same way as if it were loading from tape. This meant that programs did not need to be modified for their new memory location and could be written in BASIC but gave no execution speed benefits. Six ROM cartridge titles were announced for the launch of the Plus 1: three arcade games, one adventure game, one educational title, and the Lisp language implementation, the latter being a genuine language ROM that "takes the place of the BASIC ROM" and is instantly available when switching on. The cartridge slots provided additional control lines (compared to the lines available via the edge connector on the rear of the Electron) to ease implementation of ROM cartridges. Acorn described the hardware extension possibilities in promotional literature, giving an RS423 cartridge as an example of this capability of the Plus 1. Additional peripheral cartridges were produced by companies such as Advanced Computer Products (and subsequently PRES) whose Advanced ROM Adaptor (ARA) and Advanced Sideways RAM (ASR) products provided sideways ROM and RAM capabilities, allowing ROM- or EPROM-based software to be accessed to provide languages, utilities and applications. ROM or EPROM devices containing the software could be physically inserted into empty ZIF sockets, or the software would be loaded from ROM image files (typically provided on disk) into RAM devices fitted in such sockets. Such RAM could potentially be powered by a battery and thus be able to retain its contents when the computer itself was powered off. Both such arrangements exposed the software in the same sideways memory region. Such cartridge support enabled the Electron to provide the same functionality as that offered by the expansion ROM slots under the keyboard and on the bottom-left of the BBC Micro B keyboard. However, the need to use cartridge sockets for other peripherals encouraged PRES to develop the Advanced Plus 6 (AP6): an internal RAM and ROM board for the Plus 1 providing six sockets that could be freely used for ROM, EPROM and RAM devices. Installation of the AP6 unit required some modifications to the Plus 1, undertaken either by the user or by PRES, and the product could also be enhanced with the Advanced Plus 7 offering battery-backed RAM support for two 16 KB banks. The addition of the Plus 1 added a number of new *FX or OSBYTE calls that allowed the OS to read values from the analogue interface and write to the parallel interface. The Plus 1 needed memory page &D for its workspace, and the unit added some processing overhead when enabled, both of these things causing issues with the loading and running of software, particularly cassette-based games. To disable the Plus 1, after pressing BREAK, the following commands could be issued: *FX163,128,1 ?&212=&D6 ?&213=&F1 ?&2AC=0 An official application note described a similar set of commands to "remove the Plus One completely from the address map disabling the Centronics and A/D ports (additionally disabling the RS423 cartridge if fitted)". Further developments After Acorn's change of focus away from the Electron, and with a shortage of Plus 1 units available to purchase, Advanced Computer Products secured the rights to manufacture the unit under licence from Acorn, obtaining the injection moulds and tooling, thus restarting production in 1987 after Acorn's own production of the unit had ceased in November 1985. The Advanced Plus 2 (AP2) ROM was later sold by PRES as a replacement ROM for the Plus 1, of whose 8 KB utility ROM only 3 KB had been used, thus providing an opportunity for a more comprehensive ROM to be developed. The AP2 added ROM management commands familiar from the BBC Master series, support for various sideways RAM products from PRES, disc formatting and verification utilities for different ADFS versions, a command to disable the Plus 1 entirely, and improvements that made tape loading more reliable in "high memory" screen modes. Slogger Rombox Plus Following on from Slogger's earlier Rombox product an expansion similar in profile to the Plus 1 but offering eight ROM sockets and propagating the expansion connector to other units the Rombox Plus was positioned more directly as a competitor to the Plus 1 in that it offered two cartridge slots and a Centronics print port alongside four ROM sockets. Priced at £49.95, the unit was mostly compatible with cartridges designed for the Plus 1 although one reviewer reported physical issues with some expansion cartridges, suggesting some manufacturing inconsistencies given other users' more positive experiences, but indicated that it was still "worth considering as an alternative to the Plus 1". One review reported that the Cumana Electron Filing System cartridge had an edge connector that would not physically fit inside the slot in the Rombox Plus unit; this along with a perceived lack of robustness of the case being their only major reservations about the product. The product's support for utilising 8 KB RAM devices as a printer buffer, with buffer management provided by the built-in EPROM, was noted as a particular advantage over the Plus 1. Slogger Remote Expansion and Plus 2 In early 1989, Slogger announced its "remote expansion" (RX) system for the Electron, providing a separate case with power supply to house expansions and disc drives, able to support the weight of a monitor or television. Intended for the RX system, the Plus 2 offered two ROM cartridge slots compatible with the Plus 1, three ROM sockets, and RS423 and user port capabilities. One application of the user port was to connect a mouse, utilised by Slogger's version of the Stop Press desktop publishing package by Advanced Memory Systems. Software Bargains Plus 1 In mid-1989, Software Bargains announced an expansion providing different levels of Plus 1 functionality, offered as a bare printed circuit board without casing and in three different variants: the basic model offered one cartridge port and was bundled with View and Viewsheet cartridges for £29.95; an extended model offered one cartridge port and a printer port with the two bundled cartridges for £36.95; the full model offered two cartridge ports, printer port and the bundled cartridges for £39.95. Various board upgrade options were also offered between the variants, with the product being described mainly as a vehicle to expose the bundled software packages to as many as 150,000 owners of the estimated 200,000 Electrons in the UK who "have not yet been able to acquire or use View or Viewsheet". The lack of casing was considered the most significant disadvantage, with the absence of the analogue port deemed less critical due to a general lack of support for joysticks in many games. Communications and networking To support connectivity, Acorn announced a Plus 2 network interface with availability scheduled for early 1985, together with a RS423 cartridge for the Plus 1. Neither of these products were delivered as announced. Acorn Plus 2 The Acorn Plus 2 interface was due to provide Econet capability. This interface did not make it to market. However, an Econet interface was produced by Barson Computers in Australia and possibly other individuals and businesses. Acorn Plus 4 The Acorn Plus 4 interface was due to provide a modem communications capability. Andyk RS423 cartridge Andyk announced an RS423 cartridge for the Plus 1 providing a serial port, alongside other products, in late 1985. It was priced at £34.99. Pace Tellstar/Nightingale Originally reported in mid-1985 as a collaboration between Acorn and Pace Micro Technology, but launched in early 1986, Pace offered a communications product consisting of a RS423 cartridge, bundled with a Nightingale modem and Tellstar communications software, offered at a discounted price of £145. Jafa Systems RS423 cartridge Jafa Systems announced an RS423 cartridge in late 1989 to "fill a two year gap in the market", offering a serial connector compatible with the BBC Micro together with an on-board socket for 8 KB or 16 KB EPROM devices or for 32 KB RAM, the latter being configured to present two sideways RAM banks to the system. Write protect functionality was supported to prevent certain ROM software from attempting to overwrite itself if stored in RAM. The cartridge board itself was priced at around £30, with a case costing £5 extra, and an optional 32 KB RAM adding another £20. Support for the E00 ADFS offered by PRES for that company's AP3 disc system was indicated as an application for the sideways RAM. Slogger Plus 2 RS423 interface Slogger provided an RS423 interface as an option for its own Plus 2 expansion, announced in early 1989. Disc interfaces The first disc interface to be announced for the Electron was Pace's Le Box in 1984, offering a single-sided 100 KB floppy drive controlled by the 8271 controller and accessed using the Amcom Disc Filing System, with pricing at £299 plus VAT including the drive or around £199 without. The unit also provided eight sideways ROM sockets and was intended to sit under the Electron itself. The unit was connected via cabling to the expansion edge connector and included its own power supply, and other drives including switchable 40/80 track drives offering up to 400 KB capacity were dealer-supplied options. Although the product was meant to be on sale at the Acorn User Show in August 1984, and had been advertised, it was "discontinued" in early 1985 before getting to market, with a Pace representative indicating that prohibitive pricing of the 8271 chips (each at "over £80 at times") had left the company considering a re-launch of the product should the pricing situation become more favourable. Following on from Acorn's Plus 3 interface, Cumana, Solidisk, Advanced Computer Products and Slogger all offered disc interfaces for the Electron. Unlike disc systems on the BBC Micro and the Acorn Plus 3, many of the systems released for the Electron did not claim RAM workspace (and raise the PAGE variable affecting applications above the default of &E00), making it easier to use cassette-based software transferred to disc and to run larger programs from disc. Low-cost alternatives to disc systems, briefly made fashionable by press coverage of the Sinclair Microdrive, were reportedly under development by expansion suppliers such as Solidisk, and finished products such as the Phloopy looped tape system were offered for the Electron. Reliability issues were described with the Phloopy, and the product was apparently short-lived. Acorn Plus 3 Launched in late 1984 for a price of £229, the Acorn Plus 3 was a hardware module that connected independently of the Plus 1 and provided a "self contained disc interface and 3.5 inch single sided disc drive" offering over 300 KB of storage per disc using the newly introduced Advanced Disc Filing System (ADFS). The Plus 3 was also reportedly produced with a double-sided drive fitted. An expansion connector for a second 3.5- or 5.25-inch drive was also provided by the unit, with such drives needing to provide a Shugart-compatible connector and their own power supply. The original Electron edge connector was repeated on the back of the Plus 3, allowing the Plus 1 or other compatible expansion to be connected in conjunction with the Plus 3. The double-density drive of the Plus 3 was driven using a WD1770 drive controller by the ADFS. (The Plus 3 had been rumoured to offer Acorn's DFS and to feature a 8272 double-density disk controller before its launch.) Because the WD1770 is capable of single-density mode and uses the same IBM360-derived floppy disc format as the Intel 8271 found in the BBC Micro, it was also possible to use the Disc Filing System with an alternate ROM, such as the ACP 1770 DFS. The Plus 3 reset PAGE to &1D00, reducing the amount of free RAM available to the user. The ADFS system could be temporarily disabled (and PAGE reset to &E00) via the command. Later products such as the PRES E00 ADFS remedied the memory demands of the ADFS, along with other issues suffered by the software as delivered with the Plus 3. If using the Plus 3 in screen modes 0–3, the pseudo-variable would be thrown off, as the interrupts were disabled during disk access in these modes. The screen would also blank during disc accesses. Disks had to be manually mounted and dismounted using the / commands, or using the ++ key combination. Disks could also be booted from via the standard + key-combination, if the !BOOT file was present on the disk. This behaviour was the same as on the BBC Micro. The Plus 3 included an uprated square black power supply unit with mains cord, manufactured by STC, designed and manufactured in England to and , that was designed to power the Plus 3, in addition to the Electron and the Plus 1 interface as well. This replaced the original cream-coloured "wall wart" style power supply, designed to and manufactured in Hong Kong. Original Part no: 0201,113; input 220/240 V AC/50 Hz; output 19 V AC/0.737 A/14 W: Usage: Electron, Electron+Plus1 Uprated Part no: 0865,010; input 240 V AC/50 Hz 50 W; output 21 V AC/1.75 A/36.75 W: Usage: Electron+Plus3, Electron+Plus3+Plus1 Repair note: If the internal power-supply connector, used to power the existing internal 3.5-inch drive is damaged, and requires replacement, then the original AMP 800-930 4-pin connector, which was already in short supply during the original production run, may be replaced with a Molex 5264 50-37-5043 "Mini-SPOX" connector as an alternative. Advanced Plus 3 Designed and produced by Baildon Electronics and sold by PRES, the Advanced Plus 3 (AP3) was a Plus 1 cartridge interface using the WD1770 controller, supplied with Acorn's ADFS and a single-sided 3½-inch disc drive for £99 plus VAT, offering equivalent functionality to the Acorn Plus 3. Announced in late 1987, the product was made possible by an agreement between ACP and Acorn to license the ADFS software. As with many disc interfaces for the Electron, since the interface provided a connector for the drive, this made it possible to connect a 5¼" floppy disc drive (more common amongst BBC Micro owners) or the more typical 3½-inch drive. PRES later released a version of ADFS with support for PAGE at &E00, this being achieved by using RAM provided by the Advanced Battery Backed RAM (ABR) cartridge. This version also fixed two notable bugs in Acorn's ADFS, eliminating unreliability when accessing the first tracks on a disc which had previously necessitated the writing of a file (ZYSYSHELP) as a workaround, and switching off the text cursor during disc compaction which had previously caused disc corruption (since the disc data would be processed using screen memory during this operation, and the cursor would modify that data when blinking). The ROM image was supplied on disc for £17.19, whereas a bundle of the ROM and ABR cartridge was £50.95. In 1989, the Advanced Plus 3 Mark 2 was launched, offering a double-sided drive in place of the single-sided drive previously offered. This meant that the storage capacity of each disc was increased from the 320 KB of the original Plus 3 to 640 KB (this being supported by ADFS on the Master Compact). Cumana Floppy Disc System Early in 1985, Cumana released a cartridge-based interface providing support for double-density storage, a real-time clock and calendar for timestamping of files, and a spare ROM socket for user-fitted sideways ROMs. The filing system used was Cumana's own QFS, supporting 89 files per disc, PAGE at &E00, a non-hierarchical catalogue, ten-character filenames, with a format not directly compatible with either of Acorn's DFS or ADFS. The interface itself cost £149.95 when originally announced, but settled at around £115.95 including VAT, also being offered in a promotional bundle with a 5¼-inch drive for £224.15 including VAT. Later pricing put the interface at £74.95 including VAT. Solidisk EFS In mid-1985, Solidisk released a cartridge-based interface with support for single and double density storage and providing Acorn DFS and ADFS compatibility, 16 KB of on-board sideways RAM, and a connector for a Winchester hard drive. The cartridge itself cost £59, with a bundle including a double-sided, double-density, 3½-inch drive costing £200. A 20 MB hard drive was offered at a price of £805. Advanced Plus 4 Announced in early 1986, the Advanced Plus 4 (AP4) from Advanced Computer Products was a cartridge-based interface employing the WD1770 controller and featuring ACP's 1770 DFS product, providing compatibility with Acorn's DFS from the BBC Micro and thereby supporting seven-character filenames and up to 31 files per disc. However, 8 KB of on-board static RAM was used as workspace for the filing system, keeping PAGE at &E00. An extra ROM socket was provided for a user-fitted sideways ROM, and being a 1770-based interface, it was reported that Acorn's ADFS could be used instead, although since it was not aware of the additional RAM, PAGE would be raised to &1D00 as it would be when using Acorn's Plus 3. The interface was priced at £69.55 plus VAT. Slogger Electron Disc System and Pegasus 400 Slogger, an established producer of expansions and a reseller of other disc systems, introduced the Electron Disc System in early 1987, priced at £74.95, featuring the Cumana Floppy Disc System interface, which was combined with an Acorn-compatible DFS, SEDFS, having the capability of reading 40-track discs on 80-track drives plus support for Slogger's tape-to-disc conversion products, and reported as offering "virtual 100 per cent 8271 emulation" for compatibility with traditional DFS software. The SEDFS ROM was also available separately for existing Cumana interface owners, priced at £24.95. The SEDFS was later bundled with Slogger's own cartridge-based interface and a 40/80-track switchable drive offering up to 400 KB storage per disc, with the bundle taking the Pegasus 400 name, introduced as part of a sales tour towards the end of 1987. This package of interface and drive cost £130. The precise DFS variant used by the Pegasus 400 system kept PAGE at &E00 and introduced "typeahead" support, permitting keystroke buffering during disc activity on systems with the Turbo-Driver or Master RAM Board fitted and enabled. Slogger/Elektuur Turbo boards Announced in early 1986, the Slogger Turbo-Driver was a professionally fitted upgrade priced at £42. The board itself plugged into the CPU and BASIC ROM sockets on the main circuit board of the Electron, which merely involved removing socketed components on very early Electron models, but required desoldering work and therefore benefited from a fitting service for later units. The performance benefit of fitting the board was to make some programs, particularly those running in the high bandwidth modes (0 to 3), run up to three times faster. The direct origins of the Slogger product appear to be a board designed by Andyk Limited, announced as the Fast Electron Board in late 1985 with a price of £29.99, whereas the Elektuur modification was described in an article in Dutch Electronics magazine Elektuur and intended for users to perform at home. The Slogger and Elektuur Turbo boards were born out of a hack initially devised at Acorn. By shadowing the lowest 8 KB of RAM with a static RAM chip outside of reach of the ULA, the CPU could always access it at 2 MHz. The tradeoff was that the screen could not be located in that 8 KB. In practice the operating system ROMs always put the screen into the top 20 KB and as a result this probably only broke compatibility with around 2% of software. Speeding up the low portion of memory is particularly useful on 6502 derived machines because that processor has a faster addressing for the first 256 bytes and so it is common for software to put any variables involved in time-critical sections of program into that region. The cost of the 64 Kbit SRAM chip would have been more than that of doubling the four 64 Kbit DRAM chips to give 8-bit RAM access, fixing both the modest memory and poor performance issues of the Electron. Slogger Master RAM Board Introduced at around the start of 1987 and priced at £64.95 fitted or £54.95 as a kit, the Master RAM Board offered the familiar turbo mode from the Slogger Turbo-Driver alongside a shadow mode providing 32 KB of static shadow RAM in addition to the existing 32 KB, thus giving 64 KB in total. So-called "legally written software", this being software using the operating system calls and not writing directly to the screen, could function without significant modification, making substantially more memory available for BASIC, View, Viewsheet, language ROMs and many other applications. By providing extra storage this modification also allowed some games and applications intended for the BBC Micro to function on the Electron despite the lack of a native Mode 7. Applications could not directly address video memory in shadow mode without modification, so it was incompatible with most games, although there is no inherent reason why a game could not be written to function in shadow mode. A switch mounted through the case switched between normal, turbo and shadow modes. Towards the end of the Electron's commercial lifetime, the Turbo-Driver and Master RAM Boards were offered already fitted to new Electrons in an attempt to increase sales. For a time, Jafa Systems manufactured their own equivalent of the Master RAM Board in order to support their own product range. Mode 7 display expansions One of the features of the BBC Micro that was absent in the Electron was the Teletext-style Mode 7 display. The omission of this display mode was remarkable because it had a very low memory requirement (just 1000 bytes) and many BBC programs used it to maximise available memory for program code and data while also providing a colourful 40-column textual display with simple low-resolution graphical decorations. Such display capabilities, desirable in their own right on low-memory computers, were also desirable for delivering content through low-bandwidth communications channels such as that from Teletext and Viewdata services. However, access to such services can be considered to be a separate capability, and the BBC Micro needed to be upgraded to complement its display capability with the Teletext or Prestel adapters to receive such over-the-air or online content. Jafa Systems provided a number of solutions to remedy the absence of a Teletext display capability. Morley Electronics instead chose to offer an expansion combining the display and reception capabilities. Sir Computers In late 1984, Sir Computers announced a Mode 7 adapter unit that plugged into the Electron's expansion connector. Unfortunately, Sir Computers ceased trading before the product was brought to market. Jafa Systems Released in 1987 at a price of £89, the Mode 7 Mark 1 Display Unit was a separate unit "about the size, shape and colour of the Plus One or a Slogger ROMbox" that connected to the Electron's expansion connector and featured a Motorola 6845 display controller and Mullard SAA5050 character generator to replicate the main elements of the BBC Micro's Teletext display solution. This only used 1 KB of memory for the display, with the expansion listening to display memory write accesses and buffering the data in its own memory. A ROM was included to extend the operating system to allow activation of Mode 7 as a genuine screen mode and to provide extra commands and to support keyboard shortcuts used on the BBC Micro to emit Teletext control sequences. To support the output of both the Mode 7 display and the existing video output, a lead connected the Electron's RGB output to the expansion, with the expansion providing only RF (television) output. Conscious of the relatively high price of the Mark 1 unit, John Wike of Jafa devised and, at the end of 1988, introduced a software-based Mode 7 Simulator, priced at £25, supplied on a ROM cartridge that rendered the Mode 7 display in a low-resolution, 8-colour graphics mode. Although cheap and effective in enabling use of some software that only used official operating system routines for text output, this solution proved very slow because the Electron had to be placed into the high-bandwidth Mode 2 display to be able to show eight colours at once. In doing so, the CPU spent a lot of time drawing representations of Mode 7 characters and graphics that in a hardware solution would be achieved without any demand on the CPU. It also used up 20 KB of RAM for the graphics display rather than the 1000 bytes of a hardware Mode 7. A conceptually similar predecessor to the software-based simulator was published by Electron User in early 1987, offering a monochrome Mode 4 simulation of the Teletext display, using the lower 25 character lines of the screen to show the Teletext output, reserving several lines at the top of the screen for a representation of Mode 7 used to prepare the eventual visual output. However, the program did not support direct access to Mode 7 memory locations. The author noted that a Mode 2 version would have been possible but would have required a redesigned character set and "too much memory". A further refinement of the hardware solution was introduced in 1989 with the Mode 7 Mark 2 Display Unit, which retained the SAA5050 character generator but omitted the 6845 display controller, and was fitted internally in the Electron itself instead of being housed in an external unit, although some kind of ROM expansion unit was needed to hold the driver/utilities ROM. It used software to ensure that the SAA5050 was fed with the correct character data. A software ROM would put the machine into a two-colour, 40-column graphics mode (thus providing one byte per character), and as the ULA read display data from memory in the usual fashion, the SAA5050 would listen to the data it was reading and produce a Mode 7 interpretation of the same information, this being achieved by fitting a board on top of the ULA connecting to its pins. When necessary the hardware would switch between the conventional Electron graphics output and the Mode 7 output being produced by the add-on, feeding it to the Electron's built-in video output sockets via the red, green and blue lines on the motherboard. The disadvantage to this system is that while the SAA5050 would expect to be repeatedly fed the same 40 bytes of data for every display scanline of each character row, the ULA would read a different set of 40 bytes for every display scanline in order to produce a full graphics display. A software ROM worked around this by duplicating the data intended for a Mode 7 display in memory. Although this produced a Mode 7 that had less of an impact upon CPU performance than a software solution, gave the same visual quality as the BBC Micro, and supported direct access to Mode 7 screen addresses as well as accesses via operating system routines, it still used 10 KB of memory for the display and reduced the amount of readily-usable application memory (as indicated by HIMEM) by another 6 KB. However, with users increasingly able to rely on expansions such as the Slogger Master RAM board to provide more memory, and with this combination of expansions acknowledged throughout the user manual, the emphasis of the Mode 7 Simulator and Mark 2 Display Unit was arguably to deliver the actual display capabilities for those applications that needed them, instead of using Mode 7 as a way of economising with regard to memory usage, and to do so at a reasonable price. In this latter regard, the Mark 2 model was available as a kit costing £25 or as an assembled product (requiring some soldering) costing £49, with a fitting service available for £10. The Jafa interfaces did not provide a Teletext or Viewdata reception capability, but the Mark 2 was explicitly stated to work in conjunction with the Morley Electronics Teletext Adapter. Meanwhile, the manual for the Mark 2 noted that the product would provide the functionality of a Viewdata terminal if combined with Jafa's RS423 cartridge. Morley Electronics Morley Electronics produced a Teletext Adaptor expansion for the BBC Micro and the Electron. Since the BBC Micro has the Mode 7 display capability, the model aimed at the BBC Micro merely provided the content reception capability needed to receive and decode Teletext signals, connecting to the user port and power supply. However, the Electron models provided both display and reception capabilities, doing so by routing either the RGB or UHF signals (depending on the model) through the unit in order to introduce the Mode 7 output produced by the unit, also connecting via a cartridge. The Teletext display capabilities in the Electron models exceeded those of the BBC Micro, with one reviewer noting that the enhanced capabilities permitted "black text on a coloured background, something I've always wanted to do on my Beeb". The UHF model of the Electron adapter also supported overlaying of Teletext onto video and framing of video. Second Processor expansions Acorn did demonstrate a prototype "Tube" interface for the Electron alongside the Plus 3 interface at the Compec exhibition in November 1984, although this was never brought to market directly by Acorn. Advanced Plus 5 Despite Acorn's withdrawal from the Electron peripheral market, Baildon Electronics developed the Advanced Plus 5 (AP5) expansion, featuring Tube, 1 MHz bus and user port interfaces, which plugged into a Plus 1 cartridge socket. This provided a sufficient level of compatibility that both the 6502 and Z80 second processor products from Acorn were shown to work, providing a Tube implementation that was "as faithful as you can get", with it also being noted that the Electron being available for as little as £50 at that point in its commercial lifespan was a "very cheap way of getting a CP/M machine". Some differences in the memory map of the Electron meant that BBC Micro software would need modifications to work on the Electron with AP5. The price of the unit in late 1986 was £66.70. The additional facilities of the AP5 alongside the Tube interface permitted various expansions for the BBC Micro to be made available for the Electron. These included the Hybrid Music 5000 and the AMX Mouse. PMS Electron Second Processor In 1986, Permanent Memory Systems (PMS) announced a second processor product for the Electron, the PMS-E2P, as a self-contained cartridge for use with the Plus 1 containing a second 2 MHz 6502A processor plus 64 KB of RAM, priced at £89. This was based on a product originally developed by John Wike of Jafa Systems. Available as a kit or in assembled form, it could even be adapted to connect directly to the Electron's expansion connector, thus avoiding the need to even have a Plus 1 expansion, although this would require the user to find other solutions for attaching peripherals. The implementation of the interface between the Electron and second processor was said to adhere closely to Acorn's recommendations, noting that any hardware or software compatibility issues were likely to be the fault of other vendors not similarly adhering to Acorn's guidelines. PMS supplied Acorn's Hi-BASIC with the E2P, permitting the use of as much as 44 KB of the second processor's RAM with BASIC programs. The company also made a version of Computer Concepts' Wordwise Plus available for the E2P, priced at £39.95. Sound system expansions Despite the Electron having only limited sound generation capabilities, few expansions were offered to overcome the machine's limitations. Millsgrade Voxbox Advertised in late 1985, the Voxbox by Millsgrade Limited was an expansion connecting to the Electron's expansion connector that provided allophone-based speech synthesis, with driver software provided on cassette. The supplied software supported the definition of spoken words built up from the allophones these allophones or sounds being stored in the expansion's own ROM and for catalogues of words to be created and saved. A program was supplied that extended BASIC to allow the use of the synthesiser in user programs. The expansion used the General Instrument SP0256A-AL2 speech synthesis chip. Sound Expansion cartridge Originally announced in 1987 by Project Expansions to be priced at around £40, the Sound Expansion cartridge could be fitted in a Plus 1 (or compatible) slot and provide sound output equivalent to that of the BBC Micro, with Superior Software's Speech bundled as a "limited offer". A product of the same name and with similar functionality was subsequently sold by Complex Software for around £55, employing its own adjustable speaker in the cartridge unit. Superior Software had announced a version of Speech for the unexpanded Acorn Electron in 1986, but this was never released. Hybrid Music 5000 Hybrid Technology's Music 5000 was adapted and released by PRES for use with the 1 MHz bus of the Advanced Plus 5 expansion, with the Music 5000 itself priced at £113.85. The only functional differences between the Electron adaptation and the original BBC Micro unit involved the use of Mode 6 for the display and the reduced performance of the Electron imposing some limitations on processing in programs written for the system, although this was not thought to prevent most programs for the system from working on the Electron version. Merlin M2105 An unusual variant of the Electron was sold by British Telecom Business Systems as the BT Merlin M2105 Communications Terminal, being previewed by British Telecom at the Communications '84 show. This consisted of a rebadged Electron plus a large expansion unit containing 32 KB of battery-backed RAM (making up 64 KB of RAM in total), up to 64 KB of ROM resident in four sockets (making up to 96 KB of ROM in total), a Centronics printer port, an RS423 serial port, a modem, and the speech generator previously offered for the BBC Micro. The ROM firmware provided dial-up communications facilities, text editing and text messaging functions. The complete product included a monitor and dot-matrix printer. Initially trialled in a six-month pilot at 50 florists, with the intention of rolling out to all 2,500 members of the UK network, these were used by the Interflora florists network in the UK for over a decade. Used mostly for sending messages, despite providing support for other applications, limited availability of the product led Interflora to look for alternatives after five years, although users appeared to be happy with the product as it was. This generic product combination of the Electron and accompanying expansion was apparently known as the Chain during development, itself having a different board layout, with British Telecom having intended the M2105 to be a product supporting access to an online service known as Healthnet. This service aimed to improve and speed up communications within hospitals so that patients could be treated and discharged more quickly, and to facilitate transfers of information to doctors and health workers outside hospitals, with communications taking place over conventional telephone lines. The service was to be introduced in the Hammersmith and Fulham district health authority, with installation starting at Charing Cross Hospital. The Electron was said to be particularly suitable for deployment in this application in that it had a "large expansion bus", ostensibly making the machine amenable to the necessary adaptations required for the role, together with its "price, and the fact it has a real keyboard". As a Healthnet terminal, the M2105 was intended to support the exchange of forms, letters and memos. The adoption of an Acorn product in this role was perhaps also unusual in that much of BT's Merlin range of this era had been supplied by ICL, notably the M2226 small business computer and M3300 "communicating word processor". Nevertheless, the M2105 offered interoperability with other BT products such as the QWERTYphone which was able to receive messages from the M2105 and the Merlin Tonto. The hardware specifications of the M2105, observed from manufactured units, include the 6502 CPU (SY6502 or R6502), ULA and 32 KB of dynamic RAM fitted in the Electron main unit, plus 32 KB of static RAM, two 6522 VIA devices for interfacing, AM2910PC modem, SCN2681A UART, and TMS5220 plus TMS6100 for speech synthesis. The speech synthesis was used for the "voice response" function which answered incoming voice calls by playing a synthesised message to the caller. The components chosen and the capabilities provided (excluding speech synthesis) are broadly similar to those featured by the Acorn Communicator which was another product of Acorn's custom systems division. The product documentation indicates a specification with 48 KB of RAM plus 16 KB of "non volatile CMOS RAM" and 96 KB of ROM, although this particular composition of RAM is apparently contradicted by the RAM devices present on surviving M2105 machines. However, the earlier Chain variant of the board does appear to provide only 16 KB of static RAM using two HM6264LP-15 chips, also providing an extra 16 KB of dynamic RAM using eight MK4516-15 chips, suggesting that the product evolved during development. Technical information Much of the core functionality of the BBC Micro the video and memory controller, cassette input/output, timers and sound generation was replicated using a single customised ULA chip designed by Acorn in conjunction with Ferranti, albeit with only one sound channel instead of three (and one noise channel), and without the character-based Teletext Mode 7. The edge connector on the rear of the Electron exposes all address and data bus lines from the CPU, including the upper eight bits of the address bus, in contrast to the limited selection available via the BBC Micro's expansion ports, with the One Megahertz Bus as the principal mechanism for general purpose expansion on the BBC Micro only providing the lower eight bits of the address bus. In addition, various control signals provided by the CPU and ULA are exposed via the Electron's expansion connector. For Issue 1–4 motherboards, the ULA had an issue similar to those experienced by other socketed CPUs. Over time, the thermal heating and cooling could cause the ULA to rise slightly out of its socket just enough to cause the machine to start exhibiting 'hanging' or other startup-failure issues, such as a continuous 'startup beep'. This was despite a metal cover, and locking-bar mechanism designed to prevent this from occurring. Pushing down on the metal cover to reseat the ULA was normally sufficient to rectify these issues. Issue 5 and 6 boards utilized a different ULA type, this being known as the Aberdeen ULA (as opposed to the earlier Ferranti ULA) which was mounted on a board that was directly soldered to the main board, with the chip being covered by epoxy resin "insulating material". This arrangement dispensed with the 68-pin socket, and this new type of ULA was expected to be "less prone to failure". This type of ULA was also used on the German release of the Electron mainboard which is designated by the marking "GERMAN ELECTRON Issue 1" on the mainboard rather than just "ELECTRON" as for the UK model. The keyboard includes a form of quick keyword input, similar to that used on the Sinclair ZX Spectrum, through use of the key in combination with other keys labelled with BASIC keywords. However, unlike the Spectrum, this method of rapid keyword entry is optional, and keywords can be entered manually if preferred. The ULA mediates access to 32 KB of addressable RAM using 4 64-kilobit RAM chips (4164), sharing the RAM between the CPU and the video signal generation (or screen refresh) performed by the ULA itself. Two accesses have to be made to the RAM to get each byte (albeit with a single RAS), delivering a maximum transfer rate to or from RAM of one byte per 2 MHz cycle. In generating the video signal, the ULA is able to take advantage of this 2 MHz bandwidth when producing the picture for the high-bandwidth screen modes. Due to signalling constraints, the CPU can only access RAM at 1 MHz, even when it is not competing with the video system. When the ULA is consuming all of the RAM bandwidth during the active portion of a display line, the CPU is unable to access the RAM. (The Electron uses the Synertek variant of the 6502 processor as that allowed the clock to be stopped for this 40 microsecond period.) In other modes the CPU and video accesses are interleaved with each accessor acquiring bytes at 1 MHz. In contrast, the BBC Micro employs one or two sets of eight 16-kilobit devices, with the RAM running at twice the speed (4 MHz) of the CPU (2 MHz), allowing the video system (screen refresh) and CPU memory accesses to be interleaved, with each accessor able to transfer bytes at 2 MHz. The RAM access limitations imposed by the Electron's ULA therefore reduce the effective CPU speed by as much as a factor of four relative to the BBC Micro in the more demanding display modes, and as much as a factor of two otherwise. Byte transfers from ROM occur at 2 MHz, however. Hardware The hardware specification according to official documentation, combined with more technical documentation and analysis is as follows: CPU: Synertek SY6502A Clock rate: variable. CPU runs at 2 MHz when accessing ROM and 1 MHz when accessing RAM. The CPU is also periodically halted. Glue logic: Ferranti Semiconductor Custom ULA RAM: 32 KB ROM: 32 KB Graphics modes: 160×256 pixels (20×32 characters) in 4 or 16 colours, 320×256 (40×32 characters) in 2 or 4 colours, 640×256 (80x32 characters) in 2 colours Text modes: 40x25 characters in 2 colours, 80x25 characters in 2 colours Colours: 8 colours (TTL combinations of RGB primaries) + 8 flashing versions of the same colours Sound: 1 channel of sound, 7 octaves; built-in speaker. Software emulation of noise channel supported Keyboard: 56 key "full travel QWERTY keyboard" Dimensions: 16×34×6.5 cm I/O ports: Expansion port, tape recorder connector (1200 baud CUTS variation on the Kansas City standard for data encoding, via a 7-pin circular DIN connector), aerial TV connector (RF modulator), composite video and RGB monitor output Power supply: External PSU, 19V AC The composite video output provides a greyscale image on the standard machine, but an internal modification allows a colour image to be produced, albeit with a degradation in picture quality. Acorn ostensibly intended the composite output to be a high-quality output for monochrome monitors, with the RGB output being the preferred high-quality output for colour images. Quirks Like the BBC Micro, the Electron was constrained by limited memory resources. Of the 32 KB RAM, 3½ KB was allocated to the OS at startup and at least 10 KB was taken up by the display buffer in contiguous display modes. Although programs running on the BBC Micro could use the machine's 6522 chip to trigger interrupts at certain points in the update of each display frame, using these events to change the palette and potentially switching all colours to black, thus blanking regions of the screen and hiding non-graphical data that had been stored in screen memory, the Electron lacked such hardware capabilities as standard. However, it was possible to take advantage of the characteristics of interrupts that were provided, permitting palette changes after the top 100 lines of each display frame, thus facilitating the blanking of either the top 100 or bottom 156 lines of the display. Many games took advantage of this, gaining storage by leaving non-graphical data in the disabled area. Other games would simply load non-graphical data into the display and leave it visible as regions of apparently randomly coloured pixels. One notable example is Superior Software's Citadel. Although page flipping was a hardware possibility, the limited memory forced most applications to do all their drawing directly to the visible screen, often resulting in graphical flicker or visible redraw. A notable exception is Players' Joe Blade series. Tricks Firetrack: smooth vertical scrolling Although programs can alter the position of the screen in memory, the non-linear format of the display means that vertical scrolling can only be done in blocks of 8 pixels without further work. Firetrack, released on a compilation by Superior Software, exploits a division in the way the Electron handles its display of the seven available graphics modes, two are configured so that the final two of every ten scanlines are blank and are not based on the contents of RAM. If 16 scanlines of continuous graphical data are written to a character-block-aligned portion of the screen then they will appear as a continuous block in most modes but in the two non-continuous modes they will be displayed as two blocks of eight scanlines, separated in the middle by two blank scanlines. In order to keep track of its position within the display, the Electron maintains an internal display address counter. The same counter is used in both the continuous and non-continuous graphics modes and switching modes mid-frame does not cause any adjustment to the counter. Firetrack switches from a non-continuous to a continuous graphics mode part way down the display. By using the palette to mask the top area of the display and taking care about when it changes mode it can shift the continuous graphics at the bottom of the display down in two pixel increments because the internal display counter is not incremented on blank scanlines during non-continuous graphics modes. Exile: sampled speech Exile turns the Electron's one channel output into a digital speaker for PCM output. The speaker can be programmatically switched on or off at any time but is permanently attached to a hardware counter so is normally only able to output a square wave. But if set to a frequency outside the human audible range then the ear can't perceive the square wave, only the difference between the speaker being switched on and off. This gives the effect of a simple toggle speaker similar to that seen in the 48 KB Sinclair ZX Spectrum. Exile uses this to output 1-bit audio samples. Frak! and Zalaga: Polyphonic music As part of their copy protection, illegal copies of Aardvark Software's Frak! and Zalaga would cause a pseudo-polyphonic rendition of Trumpet Hornpipe, the Captain Pugwash theme tune, to play endlessly rather than loading the game properly (Pugwash being a pirate). On the Electron version of Frak!, the tune was the main theme from "Benny Hill" (Boots Randolph's "Yakety Sax"). The polyphony was achieved via fast note-switching to achieve the necessary chords. Software A range of titles were made available on cassette at the launch of the Electron through the Acornsoft publishing arm of Acorn, including a number of games, the Forth and Lisp languages, and a handful of other educational and productivity titles. Acorn's decision to provide the Electron with a degree of compatibility with the BBC Micro meant that a number of titles already available for the older machine could be expected to run on its new machine, with only minor cosmetic issues occurring when running some titles. Of the Acornsoft languages, the existing Forth and Lisp language releases worked on the Electron (these being re-released specially for the machine), together with BCPL and Microtext (which remained BBC-only releases). Games such as Chess and Snooker, plus a number of other titles were also established as being compatible prior to launch. Various applications in Acornsoft's View suite, together with the languages Comal, Logo and ISO Pascal, were reported as being compatible with the Electron, as were some titles from BBC Soft and other developers. Languages A significant selling point for the Electron was its built-in BBC BASIC interpreter, providing a degree of familiarity from the BBC Micro along with a level of compatibility with the earlier machine. However, as had been the case with the BBC Micro, support for other languages was quickly forthcoming, facilitated by the common heritage of the two systems. In addition to the early releases, Forth and Lisp, Acornsoft released the Pascal subset, S-Pascal, on cassette and followed up with an ISO Pascal implementation on ROM cartridge, the latter providing two 16 KB ROMs containing a program editor and a Pascal compiler producing intermediate code that required Pascal run-time routines to be loaded. As a more minimal implementation, S-Pascal made use of the machine's built-in BASIC program editing facilities and provided a compiler generating assembly language that would then be assembled, generating machine code for direct execution. ISO Pascal had Oxford Pascal as a direct competitor offering a range of features differentiating it from Acornsoft's product, notably a compiler that could produce a stand-alone "relocatable 6502 machine-code file". Acornsoft later released the ISO Pascal Stand Alone Generator product for the BBC Micro and Master series, permitting the generation of executable programs embedding "sections of the interpreter" required by each program, with such executables being subject to various licensing restrictions. Acornsoft Forth, aiming for compliance with the Forth-79 standard, was regarded as "an excellent implementation of the language". It saw competition from Skywave Software's Multi-Forth 83 which was delivered on a ROM chip, supported the Forth-83 standard, and provided a multitasking environment. Future availability of Multi-Forth 83 on ROM cartridge was advertised. With the launch of the Plus 1, Acornsoft Lisp was also made available on cartridge. This Lisp implementation provided only the "bare essentials" of a Lisp system that "a small micro such as the Electron" could hope to be able to support. However, with the interpreter and initialised workspace being loaded from cassette into RAM in the earlier release, one stated advantage of the ROM version was the availability of more memory for use by programs, with the immediacy of a Lisp system provided as a language ROM being an implicit benefit. Acornsoft provided two products offering different degrees of support for the Logo programming language. Turtle Graphics was a cassette-based product, available alongside Forth, Lisp and S-Pascal amongst the first titles released for the Electron, featuring a subset of Logo focused on the interactive aspects of the language. Acornsoft Logo was provided on ROM cartridge and offered a vocabulary of over 200 commands as part of a more comprehensive implementation of the language, exposing its list processing foundations. Turtle Graphics was substantially cheaper than Logo: by 1987, the former had been reportedly discounted to under £3 whereas the latter cost "less than £30". Unlike other Acornsoft language products, however, Logo was supplied with "two thick manuals". Applications Acornsoft made a number of applications available for the Electron. In early 1985, the View word processor and ViewSheet spreadsheet applications, familiar from the BBC Micro, were released on ROM cartridge for use with the Electron expanded with a Plus 1, priced at £49.50 each. By running directly from ROM, these applications were able to dedicate all of the machine's available RAM to their documents, and using general filing system mechanisms, documents could be loaded from and saved to cassette or disc, although disc users could also use commands that took advantage of that faster, random-access medium. Cassette-based operation was still regarded as "perfectly feasible" since the software itself did not need to be loaded, with loading and saving operations in View achieving about 800 words per minute and in ViewSheet achieving around 200 cells per minute. When using View in Mode 6, providing a 40-column, 25-line display occupying 8 KB of memory, around 20 KB of RAM was available to cassette-based systems or to disc-based systems using products such as the Cumana Floppy Disc System that also maintained PAGE at &E00, this corresponding to about 10 or 11 A4 pages of text. In Mode 3, providing an 80-column, 25-line display occupying 16 KB, around 6 or 7 A4 pages of text could be retained in memory. Acorn's Plus 3 disc system reduced this workspace by a further 4 KB. However, documents could be broken up into sections to be processed individually by View. Operation in the 80-column Mode 0 and Mode 3 was reported as being "sometimes slow" due to the Electron's hardware architecture, but View supported horizontal scrolling across documents, permitting the use of a 40-column mode to edit wider documents. ViewSheet could also operate in different display modes, with spreadsheets of approximately 1600 cells being editable in Mode 6 and around 800 cells in Mode 3. A windowing system was provided that permitted ten different views of a spreadsheet to be displayed on screen at once, and recalculation operations were reported to be "around ten seconds for quite a large model". Reviewers considered the View and ViewSheet applications to be "professional" and to "compare well with similar software sold for much more expensive machines" such as the IBM PC, with WordStar being noted as a broadly similar package to View. Compatibility with the same programs on the BBC Micro made a complete Electron-based system an attractive, low-cost, entry-level word processing and spreadsheet system. However, View's printing support was criticised as inadequate without the use of a companion printer driver program. Acornsoft did not release its ViewStore database program specifically for the Electron, but the software was reported as being compatible, albeit with function key combinations different to those documented for the BBC Micro. However, Acornsoft did release a product, Database, on 3.5-inch diskette for use with the Electron upgraded with the Plus 3 expansion. The product provided a suite of programs for the creation, maintenance and analysis of structured data files, visualising records using a card index user interface metaphor, and supporting sorting and searching operations on the stored data. Slogger, an established provider of expansions, also produced productivity applications such as Starword, a word processor, and Starstore, a database. Starword provided separate command and editing modes familiar from Acornsoft's View, also supporting 132-column documents and horizontal scrolling for the editing of such wider documents. Along with other operations familiar from View, such as search and replace functions, block-based editing, and control over text justification, it had built-in support for customising documents for output using a mail merge function. Available on ROM for fitting to a ROM expansion such as Slogger's Rombox or inside a separately purchased ROM cartridge, and reportedly developed specifically for the Electron, Starword was considered "comprehensive and powerful". Starstore, also available on ROM, provided a database management suite primarily aimed at users of cassette storage, with databases being entirely resident in RAM. It supported database definition, data editing, searching, sorting and printing activities. Various features complemented Starword, such as mail merge integration. Starstore II followed on as an alternative to, as opposed to a direct successor of, the earlier Starstore product by requiring a disc-based system and permitting databases to be as large as the amount of free space on any given disc. Its user interface was improved over the earlier product, offering pop-up menus and cursor-based navigation. Computer Concepts' Wordwise Plus, developed from the company's earlier Wordwise product for the BBC Micro and launched in early 1985, was made available for use with the Electron expanded with the E2P-6502 second processor cartridge. The original Wordwise product was incompatible with the Electron due to its use of Mode 7 (the BBC Micro's 40-column Teletext display mode), and being supplied on a ROM chip, it could also not be readily added to the Electron without appropriate expansions. Available from Permanent Memory Systems, producers of the E2P-6502 cartridge, the Electron version of the software was the Hi-Wordwise Plus variant, supplied on disc instead of ROM, and designed to run on the second processor and to use the expanded memory provided in that environment. The program used the Electron's 40-column Mode 6 display. Expansion manufacturers Advanced Computer Products and Slogger both made solutions available based on products from Advanced Memory Systems. ACP released a bundle of the AMX Mouse and AMX Art software for use with its Advanced Plus 5 expansion, also requiring a DFS-compatible disc system. Slogger produced a version of the desktop publishing package Stop Press for the Electron, requiring a DFS-compatible disc system, two spare ROM sockets, a mouse, and a suitable user port expansion, with Slogger producing its own user port expansion cartridge. Competing with these products but requiring only a disc system, AVP's Pixel Perfect offered a rudimentary desktop publishing solution, utilising the computer's high-resolution Mode 0 display. Games Of the twelve software titles announced by Acornsoft for the Electron at the machine's launch, six were games titles: Snapper, Monsters (a clone of Space Panic), Meteors (a clone of Asteroids), Starship Command, Chess, and the combined title Draughts and Reversi. When the Plus 1 expansion was launched in 1984, three of these titles - Hopper, Snapper and Starship Command - were among the six ROM cartridge titles available at launch, together with the adventure Countdown to Doom. Acornsoft would continue to release games including those based on existing arcade games such as Arcadians (based on Galaxian) and Hopper (based on Frogger), as well as original titles such as Free Fall and Elite. Micro Power, already an established BBC Micro games publisher, also entered the Electron market at a relatively early stage, offering ten initial titles either converted from the BBC Micro, in the case of Escape from Moonbase Alpha and Killer Gorilla, or "completely re-written", in the case of Moonraider (due to differences in the screen handling between the machines). Superior Software, also a significant publisher for the BBC Micro, routinely released games for both machines, notably a licensed version of Atari's Tempest in 1985, but also successful original titles such as the Repton series of games, Citadel, Thrust and Galaforce. Superior's role in games publishing for the Acorn machines expanded in 1986 when the company acquired the right to use the Acornsoft brand, leading to the co-branding of games and compilations released by the company and the re-release of existing Acornsoft titles with this branding, Elite among them. The company would subsequently release another "masterpiece" with bundled novella - the 1988 game Exile - as well as numerous conversions and compilations. By 1988, the "big three" full-price games publishers for the Acorn 8-bit market were identified as Superior Software, Audiogenic (ASL) and Tynesoft, with Top Ten and Alternative Software being the significant budget publishers, and other "strong contenders" being Godax, Mandarin and Bug Byte, this assessment made from the perspective of an established games author evaluating trustworthy publishers for aspiring authors. Commercial considerations motivated authors to make their games available for the Electron due to its importance in sales terms, representing "around half of the Acorn market", with it being regarded as "almost compulsory for any mainstream game" to have an Electron version "unless your game is a state-of-the-art masterpiece", with Revs, Cholo and Sentinel cited as such BBC Micro exclusives. Although the Electron imposed additional technical constraints on authors accustomed to the BBC Micro, some authors were able to use this to their creative advantage. For instance, of Frak! it was noted that the "Electron version is more popular, and considered better than the BBC version because it has a screen designer included". Although not as well supported by the biggest software publishers as rivals like the Commodore 64 and Sinclair ZX Spectrum, a good range of games were available for the Electron including popular multi-format games such as Chuckie Egg. There were also many popular games officially converted to the Electron from arcade machines (including Crystal Castles, Tempest, Commando, Paperboy and Yie Ar Kung-Fu) and other home computer systems (including Impossible Mission, Jet Set Willy, The Way of the Exploding Fist, Tetris, The Last Ninja, Barbarian, Ballistix, Predator, Hostages and SimCity). Despite Acorn themselves effectively shelving the Electron in 1985, games continued to be developed and released by professional software houses until the early 1990s. There were around 1,400 games released for the Acorn Electron, several thousand extra public domain titles were released on disc through Public Domain libraries. Notable enterprises which produced discs of such software are BBC PD, EUG (Electron User Group) and HeadFirst PD. Emulation Several emulators of the machine exist: ElectrEm for Windows/Linux/macOS, Elkulator for Windows/Linux/DOS, ElkJS is a browser-based (JavaScript/HTML5) emulator, and the multi-system emulators MESS and Clock Signal feature support for the Electron. Electron software is predominantly archived in the UEF file format. There are also two known publicly documented FPGA based recreations of the Acorn Electron hardware: ElectronFPGA for the Papilio Duo hardware and the Acorn-Electron core for the FPGA Arcade "Replay" board. In addition, an implementation of the ULA for the Lattice ICE40 series has been made available. Design team The operating system ROM locations 0xFC00-0xFFFF contain the details of some members of the Electron's design team, these differing somewhat from those listed in the corresponding message in the BBC Model B ROM: Additionally, the last bytes of both the BASIC ROM and the Plus 3 interface's ADFS v1.0 ROM include the word "Roger", thought to be a reference to Roger Wilson. The case was designed by industrial designer Allen Boothroyd of Cambridge Product Design Ltd. See also Electron User, the most popular Acorn Electron focused magazine References Notes External links Stairway To Hell Acorn Electron tape archive - playUEF@8bitkick Acorn Electron World Electron MODE 7 Photos Electron 6502-based home computers Home computers Computer-related introductions in 1983 Computers designed in the United Kingdom

2080

https://en.wikipedia.org/wiki/A%20Fire%20Upon%20the%20Deep

A Fire Upon the Deep

A Fire Upon the Deep is a 1992 science fiction novel by American writer Vernor Vinge. It is a space opera involving superhuman intelligences, aliens, variable physics, space battles, love, betrayal, genocide, and a communication medium resembling Usenet. A Fire Upon the Deep won the Hugo Award in 1993, sharing it with Doomsday Book by Connie Willis. Besides the normal print book editions, the novel was also included on a CD-ROM sold by ClariNet Communications along with the other nominees for the 1993 Hugo awards. The CD-ROM edition included numerous annotations by Vinge on his thoughts and intentions about different parts of the book, and was later released as a standalone e-book. Setting The novel is set in various locations in the Milky Way. The galaxy is divided into four concentric volumes called the "Zones of Thought"; it is not clear to the novel's characters whether this is a natural phenomenon or an artificially produced one, but it seems to roughly correspond with galactic-scale stellar density and a Beyond region is mentioned in the Sculptor Galaxy as well. The Zones reflect fundamental differences in basic physical laws, and one of the main consequences is their effect on intelligence, both biological and artificial. Artificial intelligence and automation is most directly affected, in that advanced hardware and software from the Beyond or the Transcend will work less and less well as a ship "descends" towards the Unthinking Depths. But even biological intelligence is affected to a lesser degree. The four zones are spoken of in terms of "low" to "high" as follows: The Unthinking Depths are the innermost zone, surrounding the Galactic Center. In it, only minimal forms of intelligence, biological or otherwise, are possible. This means that any ship straying into the Depths will be stranded, effectively permanently. Even if the crew did not die immediately—and some forms of life native to "higher" Zones would likely do so—they would be rendered incapable of even human intelligence, leaving them unable to operate their ship in any meaningful way. Surrounding the Depths is the Slow Zone. The Earth (called "Old Earth") is located in this Zone, and humanity is said to have originated there, although Earth plays no significant role in the story. Biological intelligence is possible in "the Slowness", but not true, sentient, artificial intelligence. Automation is not intelligent enough to calculate the jumps required for faster than light travel in the Slow Zone, but they may escape by performing an immediate reverse jump to where they arrived from if the Slowness is detected, and navigation systems watch for this and store the information required for a return to the start point during each jump. All ships which find themselves in the Slow Zone are restricted to sub-light speeds if an immediate reverse jump back out is impossible. Faster-than-light communication is impossible into or out of the Slow Zone. As the boundaries of the Zones are unknown and subject to change, accidental entry to the Slow Zone is a major interstellar navigational hazard at the "Bottom" of the Beyond. Starships which operate near the Beyond/Slow Zone border often have an auxiliary Bussard ramjet drive, so that, if they accidentally stray into the Slow Zone (thus disabling any FTL drive), they will at least have a backup (sub-light) drive to push them back "up" to the Beyond. Such ships also tend to include "coldsleep" equipment, as it is likely that any such return will still take many subjective lifetimes for most species. The next outermost layer is the Beyond, within which artificial intelligence, faster-than-light travel, and faster-than-light communication are possible. A few human civilizations exist in the Beyond, all descended from a single ethnic Norwegian group which managed to travel from the Slow Zone to the Beyond (presumably at sub-light speeds) and thence spread using FTL travel. The original settlement of this group is known as Nyjora; other human settlements in the Beyond include Straumli Realm and Sjandra Kei. In the Beyond, FTL travel is accomplished by making many small "jumps" across intervening space, and the efficiency of the drive increases the farther a ship travels from the galactic core. This reflects increases in both drive efficiency and the ship's automation's increased capacity as one moves outward, enabling the computation of longer and longer jumps. The Beyond is not a homogeneous zone—many references are made to, e.g., the "High Beyond" or the "Bottom of the Beyond", depending on distance to the galactic core. These terms seem to refer to differences in the Zone itself, not just relative distance from the Core, but there are no obvious Zone boundaries within the Beyond the way there are between the Slow Zone and the Beyond, or between the Beyond and the Transcend. Whereas a ship that crosses from the Beyond to the Slow Zone or vice versa will experience a dramatic change in its capabilities, a ship in the Beyond which moves farther from the Core will experience a gradual increase in efficiency (assuming it has the technology to make use of it) until another major shift at the boundary to the Transcend. The Beyond is populated by a very large number of interstellar and intergalactic civilizations which are linked by a faster-than-light communication network, "the Net", sometimes cynically called the "Net of a Million Lies". The Net does connect with the Transcend, on the off-chance that one of the "Powers" that live there deigns to communicate, but has no connections with the Slow Zone, as FTL communication is impossible into or out of that Zone. In the novel, the Net is depicted as working much like the Usenet network in the early 1990s, with transcripts of messages containing header and footer information as one would find in such forums. The outermost layer, containing the galactic halo, is the Transcend, within which incomprehensible, superintelligent beings dwell. When a "Beyonder" civilization reaches the point of technological singularity, it is said to "Transcend", becoming a "Power". Such Powers always seem to relocate to the Transcend, seemingly necessarily, where they become engaged in affairs which remain entirely mysterious to those that remain in the Beyond. Ravna uses this analogy to explain the relation between the zones: Plot An expedition from Straumli Realm, an ambitious young human civilization in the high Beyond, investigates a five-billion-year-old data archive in the low Transcend that offers the possibility of unimaginable riches. The expedition's facility, High Lab, is gradually compromised by a dormant superintelligence within the archive later known as the Blight. However, shortly before the Blight's final "flowering", two self-aware entities created similarly to the Blight plot to aid the humans before the Blight can escape. Recognizing the danger of what they have awakened, the researchers at High Lab attempt to flee in two ships, one carrying all the adults and the second carrying all the children in "coldsleep boxes". Suspicious, the Blight discovers that the first ship contains a data storage device in its cargo manifest; assuming it contains information that could harm it, the Blight destroys the ship. The second ship escapes. The Blight assumes that it is no threat, but later realizes that it is actually carrying away a "countermeasure" against it. The ship lands on a distant planet with a medieval-level civilization of dog-like creatures, dubbed "Tines", who live in packs as group minds. Upon landing, however, the two surviving adults are ambushed and killed by Tine fanatics known as Flenserists, in whose realm they have landed. The Flenserists capture a young boy named Jefri Olsndot and his wounded sister, Johanna. While Jefri is taken deeper into Flenserist territory, Johanna is rescued by a Tine pilgrim who witnessed the ambush and delivers her to a neighboring kingdom ruled by a Tine named Woodcarver. The Flenserists tell Jefri that Johanna has been killed by Woodcarver and exploit him in order to develop advanced technology (such as cannon and radio communication), while Johanna and the knowledge stored in her "dataset" device help Woodcarver rapidly develop in turn. A distress signal from the sleeper ship eventually reaches "Relay", a major node in the galactic communications network. A benign transcendent entity named "the Old One" contacts Relay, seeking information about the Blight and the humans who released it, and reconstitutes a human man named Pham Nuwen from an old wreck to act as its agent, using his doubt of his own memory's veracity to bend him to the Old One's will. Ravna Bergsndot, the only human Relay employee, traces the sleeper ship's signal to the Tines' world and persuades her employer to investigate what the human ship took from High Lab, contracting the merchant vessel Out of Band II, owned by two sentient plant "Skroderiders", Blueshell and Greenstalk, to transport them. Before the mission is launched, the Blight attacks Relay and concurrently kills Old One. As Old One dies, it downloads what information it can into Pham to defeat the Blight, and Pham, Ravna and the Skroderiders barely escape Relay's destruction in the Out of Band II. The Blight expands, taking over races and "rewriting" their people to become its agents, murdering several other Powers, and seizing other archives in the Beyond, looking for what was taken. It finally realizes where the danger truly lies and sends a hastily assembled fleet in pursuit of the Out of Band II. The humans arrive at the Tines' homeworld and ally with Woodcarver to defeat the Flenserists. Pham initiates Countermeasure, which extends the Slow Zone by thousands of light years, enveloping the Blight at the cost of wrecking thousands of uninvolved civilizations and causing trillions of deaths. The humans are stranded on the Tines world, now in the depths of the "Slow Zone". Activating the countermeasure costs Pham his life, but just before Pham dies, he realizes that, although his body is a reconstruction, his memories are real. Vinge expands on Pham's background story in A Deepness in the Sky. Intelligent species Aprahanti A race of humanoids with colorful butterfly-like wings who attempt to use the chaos wrought by the Blight to reestablish their waning hegemony. Despite their attractive, delicate appearance, the Aprahanti are an extremely fearsome and vicious species. Blight An ancient, malevolent super-intelligent entity which strives to constantly expand and can easily manipulate electronics and even organic beings. Dirokimes An older race which originally inhabited Sjandra Kei before the arrival of humanity. Humans All humans in the novel (except Pham) are descended from Nyjoran stock. Their ancestors were "Tuvo-Norsk" asteroid miners from Old Earth's solar system, which is noted as being on the other side of the galaxy in the Slow Zone. (Nyjora sounds similar to New Norwegian "New Earth".) One of the major human habitations is Sjandra Kei, three systems comprising roughly 28 billion individuals. Their main language is Samnorsk, the Norwegian term for a hypothetical unification of the Bokmål and Nynorsk forms of the language. (Vinge indicates in the book's dedication that several key ideas in it came to him while at a conference in Tromsø, Norway.) Skroders/Riders/Skroderiders A race of plantlike beings with fronds that are used for expression. The riders have no native capacity for short-term memory. Five billion years ago, someone gave the species wheeled mechanical constructs ("skrodes") to move around and to provide short-term memory. It is later revealed that their "benefactor" was the Blight, and it is able to corrupt and remotely operate the Riders via their skrodes. Tines A race of group minds: each person is a "pack" of 4–8 doglike members, which communicate within the pack using very short-range ultrasonic waves from drumlike organs called "tympana". Each "soul" can survive and evolve by adding members to replace those who die, potentially for hundreds of years, as Woodcarver does. Kalir A race of butterfly-like insectoids, authoritarian and warlike, who constitute one of the "majority races" of the Vrinimi organization. Related works Vinge first used the concepts of "Zones of Thought" in a 1988 novella The Blabber, which occurs after Fire. Vinge's novel A Deepness in the Sky (1999) is a prequel to A Fire Upon the Deep set 20,000 years earlier and featuring Pham Nuwen. Vinge's The Children of the Sky, "a near-term sequel to A Fire Upon the Deep, set ten years later, was released in October 2011. Vinge's former wife, Joan D. Vinge, has also written stories in the Zones of Thought universe, based on his notes. These include "The Outcasts of Heaven Belt", "Legacy", and (as of 2008) a planned novel featuring Pham Nuwen. Title Vinge's original title for the novel was "Among the Tines"; its final title was suggested by his editors. Awards and nominations A Fire Upon the Deep shared the 1993 Hugo Award for Best Novel with Doomsday Book. The book was nominated for the Nebula Award for Best Novel of 1992, the 1993 John W. Campbell Memorial Award for Best Science Fiction Novel, and the 1993 Locus Award for Best Science Fiction Novel. Critical reactions Jo Walton wrote: "Any one of the ideas in A Fire Upon the Deep would have kept an ordinary writer going for years. For me it's the book that does everything right, the example of what science fiction does when it works. ... A Fire Upon the Deep remains a favourite and a delight to re-read, absorbing even when I know exactly what’s coming." References External links A Fire Upon the Deep at Worlds Without End 1992 American novels Hugo Award for Best Novel-winning works Transhumanist books Usenet Novels by Vernor Vinge 1992 science fiction novels Tor Books books Fiction about artificial intelligence Malware in fiction Nanotechnology in fiction Fiction about consciousness transfer Apocalyptic fiction

2088

https://en.wikipedia.org/wiki/Aphasia

Aphasia

In aphasia (sometimes called dysphasia), a person may be unable to comprehend or unable to formulate language because of damage to specific brain regions. The major causes are stroke and head trauma; prevalence is hard to determine but aphasia due to stroke is estimated to be 0.1–0.4% in the Global North. Aphasia can also be the result of brain tumors, epilepsy, brain damage and brain infections, or neurodegenerative diseases (such as dementias). To be diagnosed with aphasia, a person's language must be significantly impaired in one (or more) of the four aspects of communication. Alternatively, in the case of progressive aphasia, it must have significantly declined over a short period of time. The four aspects of communication are spoken language production and comprehension, and written language production and comprehension, impairments in any of these aspects can impact on functional communication. The difficulties of people with aphasia can range from occasional trouble finding words, to losing the ability to speak, read, or write; intelligence, however, is unaffected. Expressive language and receptive language can both be affected as well. Aphasia also affects visual language such as sign language. In contrast, the use of formulaic expressions in everyday communication is often preserved. For example, while a person with aphasia, particularly expressive aphasia (Broca's aphasia), may not be able to ask a loved one when their birthday is, they may still be able to sing "Happy Birthday". One prevalent deficit in the aphasias is anomia, which is a difficulty in finding the correct word. With aphasia, one or more modes of communication in the brain have been damaged and are therefore functioning incorrectly. Aphasia is not caused by damage to the brain that results in motor or sensory deficits, which produces abnormal speech; that is, aphasia is not related to the mechanics of speech but rather the individual's language cognition (although a person can have both problems, as an example, if they have a haemorrhage that damaged a large area of the brain). An individual's language is the socially shared set of rules, as well as the thought processes that go behind communication (as it affects both verbal and nonverbal language). It is not a result of a more peripheral motor or sensory difficulty, such as paralysis affecting the speech muscles or a general hearing impairment. Neurodevelopmental forms of auditory processing disorder are differentiable from aphasia in that aphasia is by definition caused by acquired brain injury, but acquired epileptic aphasia has been viewed as a form of APD. Signs and symptoms People with aphasia may experience any of the following behaviors due to an acquired brain injury, although some of these symptoms may be due to related or concomitant problems, such as dysarthria or apraxia, and not primarily due to aphasia. Aphasia symptoms can vary based on the location of damage in the brain. Signs and symptoms may or may not be present in individuals with aphasia and may vary in severity and level of disruption to communication. Often those with aphasia may have a difficulty with naming objects, so they might use words such as thing or point at the objects. When asked to name a pencil they may say it is a "thing used to write". Inability to comprehend language Inability to pronounce, not due to muscle paralysis or weakness Inability to form words Inability to recall words (anomia) Poor enunciation Excessive creation and use of personal neologisms Inability to repeat a phrase Persistent repetition of one syllable, word, or phrase (stereotypies, recurrent/recurring utterances/speech automatism) also known as perseveration. Paraphasia (substituting letters, syllables or words) Agrammatism (inability to speak in a grammatically correct fashion) speaking in incomplete sentences Inability to read Inability to write Limited verbal output Difficulty in naming Speech disorder Speaking gibberish Inability to follow or understand simple requests Related behaviors Given the previously stated signs and symptoms, the following behaviors are often seen in people with aphasia as a result of attempted compensation for incurred speech and language deficits: Self-repairs: Further disruptions in fluent speech as a result of mis-attempts to repair erred speech production. Struggle in non-fluent aphasias: A severe increase in expelled effort to speak after a life where talking and communicating was an ability that came so easily can cause visible frustration. Preserved and automatic language: A behavior in which some language or language sequences that were used so frequently prior to onset are still produced with more ease than other language post onset. Subcortical Subcortical aphasias characteristics and symptoms depend upon the site and size of subcortical lesion. Possible sites of lesions include the thalamus, internal capsule, and basal ganglia. Cognitive deficits While aphasia has traditionally been described in terms of language deficits, there is increasing evidence that many people with aphasia commonly experience co-occurring non-linguistic cognitive deficits in areas such as attention, memory, executive functions and learning. By some accounts, cognitive deficits, such as attention and working memory constitute the underlying cause of language impairment in people with aphasia. Others suggest that cognitive deficits often co-occur but are comparable to cognitive deficits in stroke patients without aphasia and reflect general brain dysfunction following injury. The degree to which deficits in attention and other cognitive domains underlie language deficits in aphasia is still unclear. In particular, people with aphasia often demonstrate short-term and working memory deficits. These deficits can occur in both the verbal domain as well as the visuospatial domain. Furthermore, these deficits are often associated with performance on language specific tasks such as naming, lexical processing, and sentence comprehension, and discourse production. Other studies have found that most, but not all people with aphasia demonstrate performance deficits on tasks of attention, and their performance on these tasks correlate with language performance and cognitive ability in other domains. Even patients with mild aphasia, who score near the ceiling on tests of language often demonstrate slower response times and interference effects in non-verbal attention abilities. In addition to deficits in short-term memory, working memory, and attention, people with aphasia can also demonstrate deficits in executive function. For instance, people with aphasia may demonstrate deficits in initiation, planning, self-monitoring, and cognitive flexibility. Other studies have found that people with aphasia demonstrate reduced speed and efficiency during completion executive function assessments. Regardless of their role in the underlying nature of aphasia, cognitive deficits have a clear role in the study and rehabilitation of aphasia. For instance, the severity of cognitive deficits in people with aphasia has been associated with lower quality of life, even more so than the severity of language deficits. Furthermore, cognitive deficits may influence the learning process of rehabilitation and language treatment outcomes in aphasia. Non-linguistic cognitive deficits have also been the target of interventions directed at improving language ability, though outcomes are not definitive. While some studies have demonstrated language improvement secondary to cognitively-focused treatment, others have found little evidence that the treatment of cognitive deficits in people with aphasia has an influence on language outcomes. One important caveat in the measurement and treatment of cognitive deficits in people with aphasia is the degree to which assessments of cognition rely on language abilities for successful performance. Most studies have attempted to circumvent this challenge by utilizing non-verbal cognitive assessments to evaluate cognitive ability in people with aphasia. However, the degree to which these tasks are truly 'non-verbal' and not mediated by language in unclear. For instance, Wall et al. found that language and non-linguistic performance was related, except when non-linguistic performance was measured by 'real life' cognitive tasks. Causes Aphasia is most often caused by stroke, where about a quarter of patients who experience an acute stroke develop aphasia. However, any disease or damage to the parts of the brain that control language can cause aphasia. Some of these can include brain tumors, traumatic brain injury, epilepsy and progressive neurological disorders. In rare cases, aphasia may also result from herpesviral encephalitis. The herpes simplex virus affects the frontal and temporal lobes, subcortical structures, and the hippocampal tissue, which can trigger aphasia. In acute disorders, such as head injury or stroke, aphasia usually develops quickly. When caused by brain tumor, infection, or dementia, it develops more slowly. Substantial damage to tissue anywhere within the region shown in blue (on the figure in the infobox above) can potentially result in aphasia. Aphasia can also sometimes be caused by damage to subcortical structures deep within the left hemisphere, including the thalamus, the internal and external capsules, and the caudate nucleus of the basal ganglia. The area and extent of brain damage or atrophy will determine the type of aphasia and its symptoms. A very small number of people can experience aphasia after damage to the right hemisphere only. It has been suggested that these individuals may have had an unusual brain organization prior to their illness or injury, with perhaps greater overall reliance on the right hemisphere for language skills than in the general population. Primary progressive aphasia (PPA), while its name can be misleading, is actually a form of dementia that has some symptoms closely related to several forms of aphasia. It is characterized by a gradual loss in language functioning while other cognitive domains are mostly preserved, such as memory and personality. PPA usually initiates with sudden word-finding difficulties in an individual and progresses to a reduced ability to formulate grammatically correct sentences (syntax) and impaired comprehension. The etiology of PPA is not due to a stroke, traumatic brain injury (TBI), or infectious disease; it is still uncertain what initiates the onset of PPA in those affected by it. Epilepsy can also include transient aphasia as a prodromal or episodic symptom. However, the repeated seizure activity within language regions may also lead to chronic, and progressive aphasia. Aphasia is also listed as a rare side-effect of the fentanyl patch, an opioid used to control chronic pain. Diagnosis Neuroimaging methods Magnetic resonance imaging (MRI) and functional magnetic resonance imaging (fMRI) are the most common neuroimaging tools used in identifying aphasia and studying the extent of damage in the loss of language abilities. This is done by doing MRI scans and locating the extent of lesions or damage within brain tissue, particularly within areas of the left frontal and temporal regions- where a lot of language related areas lie. In fMRI studies a language related task is often completed and then the BOLD image is analyzed. If there are lower than normal BOLD responses that indicate a lessening of blood flow to the affected area and can show quantitatively that the cognitive task is not being completed. There are limitations to the use of fMRI in aphasic patients particularly. Because a high percentage of aphasic patients develop it because of stroke there can be infarct present which is the total loss of blood flow. This can be due to the thinning of blood vessels or the complete blockage of it. This is important in fMRI as it relies on the BOLD response (the oxygen levels of the blood vessels), and this can create a false hyporesponse upon fMRI study. Due to the limitations of fMRI such as a lower spatial resolution, it can show that some areas of the brain are not active during a task when they in reality are. Additionally, with stroke being the cause of many cases of aphasia the extent of damage to brain tissue can be difficult to quantify therefore the effects of stroke brain damage on the functionality of the patient can vary. Neural substrates of aphasia subtypes MRI is often used to predict or confirm the subtype of aphasia present. Researchers compared 3 subtypes of aphasia- nonfluent-variant primary progressive aphasia (nfPPA), logopenic-variant primary progressive aphasia (lvPPA), and semantic-variant primary progressive aphasia (svPPA), with primary progressive aphasia (PPA) and Alzheimer's disease. This was done by analyzing the MRIs of patients with each of the subsets of PPA. Images which compare subtypes of aphasia as well as for finding the extent of lesions are generated by overlapping images of different participant's brains (if applicable) and isolating areas of lesions or damage using third party software such as MRIcron. MRI has also been used to study the relationship between the type of aphasia developed and the age of the person with aphasia. It was found that patients with fluent aphasia are on average older than people with non-fluent aphasia. It was also found that among patients with lesions confined to the anterior portion of the brain an unexpected portion of them presented with fluent aphasia and were remarkably older than those with non-fluent aphasia. This effect was not found when the posterior portion of the brain was studied. Associated conditions In a study on the features associated with different disease trajectories in Alzheimer's disease (AD)-related primary progressive aphasia (PPA), it was found that metabolic patterns via PET SPM analysis can help predict progression of total loss of speech and functional autonomy in AD and PPA patients. This was done by comparing an MRI or CT image of the brain and presence of a radioactive biomarker with normal levels in patients without Alzheimer's Disease. Apraxia is another disorder often correlated with aphasia. This is due to a subset of apraxia which affects speech. Specifically, this subset affects the movement of muscles associated with speech production, apraxia and aphasia are often correlated due to the proximity of neural substrates associated with each of the disorders. Researchers concluded that there were 2 areas of lesion overlap between patients with apraxia and aphasia, the anterior temporal lobe and the left inferior parietal lobe. Treatment and neuroimaging Evidence for positive treatment outcomes can also be quantified using neuroimaging tools. The use of fMRI and an automatic classifier can help predict language recovery outcomes in stroke patients with 86% accuracy when coupled with age and language test scores. The stimuli tested were sentences both correct and incorrect and the subject had to press a button whenever the sentence was incorrect. The fMRI data collected focused on responses in regions of interest identified by healthy subjects.  Recovery from aphasia can also be quantified using diffusion tensor imaging. The accurate fasciculus (AF) connects the right and left superior temporal lobe, premotor regions/posterior inferior frontal gyrus. and the primary motor cortex. In a study which enrolled patients in a speech therapy program, an increase in AF fibers and volume was found in patients after 6-weeks in the program which correlated with long-term improvement in those patients. The results of the experiment are pictured in Figure 2. This implies that DTI can be used to quantify the improvement in patients after speech and language treatment programs are applied. Classification Aphasia is best thought of as a collection of different disorders, rather than a single problem. Each individual with aphasia will present with their own particular combination of language strengths and weaknesses. Consequently, it is a major challenge just to document the various difficulties that can occur in different people, let alone decide how they might best be treated. Most classifications of the aphasias tend to divide the various symptoms into broad classes. A common approach is to distinguish between the fluent aphasias (where speech remains fluent, but content may be lacking, and the person may have difficulties understanding others), and the nonfluent aphasias (where speech is very halting and effortful, and may consist of just one or two words at a time). However, no such broad-based grouping has proven fully adequate, or reliable. There is wide variation among people even within the same broad grouping, and aphasias can be highly selective. For instance, people with naming deficits (anomic aphasia) might show an inability only for naming buildings, or people, or colors. Unfortunately, assessments that characterize aphasia in these groupings have persisted. This is not helpful to people living with aphasia, and provides inaccurate descriptions of an individual pattern of difficulties. It is important to note that there are typical difficulties with speech and language that come with normal aging as well. As we age, language can become more difficult to process resulting in a slowing of verbal comprehension, reading abilities and more likely word finding difficulties. With each of these though, unlike some aphasias, functionality within daily life remains intact. Boston classification Individuals with receptive aphasia (Wernicke's aphasia), also referred to as fluent aphasia, may speak in long sentences that have no meaning, add unnecessary words, and even create new "words" (neologisms). For example, someone with receptive aphasia may say, "delicious taco", meaning "The dog needs to go out so I will take him for a walk". They have poor auditory and reading comprehension, and fluent, but nonsensical, oral and written expression. Individuals with receptive aphasia usually have great difficulty understanding the speech of both themselves and others and are, therefore, often unaware of their mistakes. Receptive language deficits usually arise from lesions in the posterior portion of the left hemisphere at or near Wernicke's area. It is often the result of trauma to the temporal region of the brain, specifically damage to Wernicke's area. Trauma can be the result from an array of problems, however it is most commonly seen as a result of stroke Individuals with expressive aphasia (Broca's aphasia) frequently speak short, meaningful phrases that are produced with great effort. It is thus characterized as a nonfluent aphasia. Affected people often omit small words such as "is", "and", and "the". For example, a person with expressive aphasia may say, "walk dog", which could mean "I will take the dog for a walk", "you take the dog for a walk" or even "the dog walked out of the yard." Individuals with expressive aphasia are able to understand the speech of others to varying degrees. Because of this, they are often aware of their difficulties and can become easily frustrated by their speaking problems. While Broca's aphasia may appear to be solely an issue with language production, evidence suggests that it may be rooted in an inability to process syntactical information. Individuals with expressive aphasia may have a speech automatism (also called recurring or recurrent utterance). These speech automatisms can be repeated lexical speech automatisms; e.g., modalisations ('I can't..., I can't...'), expletives/swearwords, numbers ('one two, one two') or non-lexical utterances made up of repeated, legal but meaningless, consonant-vowel syllables (e.g.., /tan tan/, /bi bi/). In severe cases, the individual may be able to utter only the same speech automatism each time they attempt speech. Individuals with anomic aphasia have difficulty with naming. People with this aphasia may have difficulties naming certain words, linked by their grammatical type (e.g., difficulty naming verbs and not nouns) or by their semantic category (e.g., difficulty naming words relating to photography but nothing else) or a more general naming difficulty. People tend to produce grammatic, yet empty, speech. Auditory comprehension tends to be preserved. Anomic aphasia is the aphasial presentation of tumors in the language zone; it is the aphasial presentation of Alzheimer's disease. Anomic aphasia is the mildest form of aphasia, indicating a likely possibility for better recovery. Individuals with transcortical sensory aphasia, in principle the most general and potentially among the most complex forms of aphasia, may have similar deficits as in receptive aphasia, but their repetition ability may remain intact. Global aphasia is considered a severe impairment in many language aspects since it impacts expressive and receptive language, reading, and writing. Despite these many deficits, there is evidence that has shown individuals benefited from speech language therapy. Even though individuals with global aphasia will not become competent speakers, listeners, writers, or readers, goals can be created to improve the individual's quality of life. Individuals with global aphasia usually respond well to treatment that includes personally relevant information, which is also important to consider for therapy. Individuals with conduction aphasia have deficits in the connections between the speech-comprehension and speech-production areas. This might be caused by damage to the arcuate fasciculus, the structure that transmits information between Wernicke's area and Broca's area. Similar symptoms, however, can be present after damage to the insula or to the auditory cortex. Auditory comprehension is near normal, and oral expression is fluent with occasional paraphasic errors. Paraphasic errors include phonemic/literal or semantic/verbal. Repetition ability is poor. Conduction and transcortical aphasias are caused by damage to the white matter tracts. These aphasias spare the cortex of the language centers but instead create a disconnection between them. Conduction aphasia is caused by damage to the arcuate fasciculus. The arcuate fasciculus is a white matter tract that connects Broca's and Wernicke's areas. People with conduction aphasia typically have good language comprehension, but poor speech repetition and mild difficulty with word retrieval and speech production. People with conduction aphasia are typically aware of their errors. Two forms of conduction aphasia have been described: reproduction conduction aphasia (repetition of a single relatively unfamiliar multisyllabic word) and repetition conduction aphasia (repetition of unconnected short familiar words. Transcortical aphasias include transcortical motor aphasia, transcortical sensory aphasia, and mixed transcortical aphasia. People with transcortical motor aphasia typically have intact comprehension and awareness of their errors, but poor word finding and speech production. People with transcortical sensory and mixed transcortical aphasia have poor comprehension and unawareness of their errors. Despite poor comprehension and more severe deficits in some transcortical aphasias, small studies have indicated that full recovery is possible for all types of transcortical aphasia. Classical-localizationist approaches Localizationist approaches aim to classify the aphasias according to their major presenting characteristics and the regions of the brain that most probably gave rise to them. Inspired by the early work of nineteenth-century neurologists Paul Broca and Carl Wernicke, these approaches identify two major subtypes of aphasia and several more minor subtypes: Expressive aphasia (also known as "motor aphasia" or "Broca's aphasia"), which is characterized by halted, fragmented, effortful speech, but well-preserved comprehension relative to expression. Damage is typically in the anterior portion of the left hemisphere, most notably Broca's area. Individuals with Broca's aphasia often have right-sided weakness or paralysis of the arm and leg, because the left frontal lobe is also important for body movement, particularly on the right side. Receptive aphasia (also known as "sensory aphasia" or "Wernicke's aphasia"), which is characterized by fluent speech, but marked difficulties understanding words and sentences. Although fluent, the speech may lack in key substantive words (nouns, verbs, adjectives), and may contain incorrect words or even nonsense words. This subtype has been associated with damage to the posterior left temporal cortex, most notably Wernicke's area. These individuals usually have no body weakness, because their brain injury is not near the parts of the brain that control movement. Conduction aphasia, where speech remains fluent, and comprehension is preserved, but the person may have disproportionate difficulty repeating words or sentences. Damage typically involves the arcuate fasciculus and the left parietal region. Transcortical motor aphasia and transcortical sensory aphasia, which are similar to Broca's and Wernicke's aphasia respectively, but the ability to repeat words and sentences is disproportionately preserved. Recent classification schemes adopting this approach, such as the Boston-Neoclassical Model, also group these classical aphasia subtypes into two larger classes: the nonfluent aphasias (which encompasses Broca's aphasia and transcortical motor aphasia) and the fluent aphasias (which encompasses Wernicke's aphasia, conduction aphasia and transcortical sensory aphasia). These schemes also identify several further aphasia subtypes, including: anomic aphasia, which is characterized by a selective difficulty finding the names for things; and global aphasia, where both expression and comprehension of speech are severely compromised. Many localizationist approaches also recognize the existence of additional, more "pure" forms of language disorder that may affect only a single language skill. For example, in pure alexia, a person may be able to write but not read, and in pure word deafness, they may be able to produce speech and to read, but not understand speech when it is spoken to them. Cognitive neuropsychological approaches Although localizationist approaches provide a useful way of classifying the different patterns of language difficulty into broad groups, one problem is that most individuals do not fit neatly into one category or another. Another problem is that the categories, particularly the major ones such as Broca's and Wernicke's aphasia, still remain quite broad and do not meaningfully reflect a person's difficulties. Consequently, even amongst those who meet the criteria for classification into a subtype, there can be enormous variability in the types of difficulties they experience. Instead of categorizing every individual into a specific subtype, cognitive neuropsychological approaches aim to identify the key language skills or "modules" that are not functioning properly in each individual. A person could potentially have difficulty with just one module, or with a number of modules. This type of approach requires a framework or theory as to what skills/modules are needed to perform different kinds of language tasks. For example, the model of Max Coltheart identifies a module that recognizes phonemes as they are spoken, which is essential for any task involving recognition of words. Similarly, there is a module that stores phonemes that the person is planning to produce in speech, and this module is critical for any task involving the production of long words or long strings of speech. Once a theoretical framework has been established, the functioning of each module can then be assessed using a specific test or set of tests. In the clinical setting, use of this model usually involves conducting a battery of assessments, each of which tests one or a number of these modules. Once a diagnosis is reached as to the skills/modules where the most significant impairment lies, therapy can proceed to treat these skills. Progressive aphasias Primary progressive aphasia (PPA) is a neurodegenerative focal dementia that can be associated with progressive illnesses or dementia, such as frontotemporal dementia / Pick Complex Motor neuron disease, Progressive supranuclear palsy, and Alzheimer's disease, which is the gradual process of progressively losing the ability to think. Gradual loss of language function occurs in the context of relatively well-preserved memory, visual processing, and personality until the advanced stages. Symptoms usually begin with word-finding problems (naming) and progress to impaired grammar (syntax) and comprehension (sentence processing and semantics). The loss of language before the loss of memory differentiates PPA from typical dementias. People with PPA may have difficulties comprehending what others are saying. They can also have difficulty trying to find the right words to make a sentence. There are three classifications of Primary Progressive Aphasia : Progressive nonfluent aphasia (PNFA), Semantic Dementia (SD), and Logopenic progressive aphasia (LPA). Progressive Jargon Aphasia is a fluent or receptive aphasia in which the person's speech is incomprehensible, but appears to make sense to them. Speech is fluent and effortless with intact syntax and grammar, but the person has problems with the selection of nouns. Either they will replace the desired word with another that sounds or looks like the original one or has some other connection or they will replace it with sounds. As such, people with jargon aphasia often use neologisms, and may perseverate if they try to replace the words they cannot find with sounds. Substitutions commonly involve picking another (actual) word starting with the same sound (e.g., clocktower – colander), picking another semantically related to the first (e.g., letter – scroll), or picking one phonetically similar to the intended one (e.g., lane – late). Deaf aphasia There have been many instances showing that there is a form of aphasia among deaf individuals. Sign languages are, after all, forms of language that have been shown to use the same areas of the brain as verbal forms of language. Mirror neurons become activated when an animal is acting in a particular way or watching another individual act in the same manner. These mirror neurons are important in giving an individual the ability to mimic movements of hands. Broca's area of speech production has been shown to contain several of these mirror neurons resulting in significant similarities of brain activity between sign language and vocal speech communication. Facial communication is a significant portion of how animals interact with each other. Humans use facial movements to create, what other humans perceive, to be faces of emotions. While combining these facial movements with speech, a more full form of language is created which enables the species to interact with a much more complex and detailed form of communication. Sign language also uses these facial movements and emotions along with the primary hand movement way of communicating. These facial movement forms of communication come from the same areas of the brain. When dealing with damages to certain areas of the brain, vocal forms of communication are in jeopardy of severe forms of aphasia. Since these same areas of the brain are being used for sign language, these same, at least very similar, forms of aphasia can show in the Deaf community. Individuals can show a form of Wernicke's aphasia with sign language and they show deficits in their abilities in being able to produce any form of expressions. Broca's aphasia shows up in some people, as well. These individuals find tremendous difficulty in being able to actually sign the linguistic concepts they are trying to express. Severity The severity of the type of aphasia varies depending on the size of the stroke. However, there is much variance between how often one type of severity occurs in certain types of aphasia. For instance, any type of aphasia can range from mild to profound. Regardless of the severity of aphasia, people can make improvements due to spontaneous recovery and treatment in the acute stages of recovery. Additionally, while most studies propose that the greatest outcomes occur in people with severe aphasia when treatment is provided in the acute stages of recovery, Robey (1998) also found that those with severe aphasia are capable of making strong language gains in the chronic stage of recovery as well. This finding implies that persons with aphasia have the potential to have functional outcomes regardless of how severe their aphasia may be. While there is no distinct pattern of the outcomes of aphasia based on severity alone, global aphasia typically makes functional language gains, but may be gradual since global aphasia affects many language areas. Prevention Aphasia is largely caused by unavoidable instances. However, some precautions can be taken to decrease risk for experiencing one of the two major causes of aphasia: stroke and traumatic brain injury (TBI). To decrease the probability of having an ischemic or hemorrhagic stroke, one should take the following precautions: Exercising regularly Eating a healthy diet, avoiding cholesterol in particular Keeping alcohol consumption low and avoiding tobacco use Controlling blood pressure Going to the emergency room immediately if you begin to experience unilateral extremity (especially leg) swelling, warmth, redness, and/or tenderness as these are symptoms of a deep vein thrombosis which can lead to a stroke To prevent aphasia due to traumatic injury, one should take precautionary measures when engaging in dangerous activities such as: Wearing a helmet when operating a bicycle, motor cycle, ATV, or any other moving vehicle that could potentially be involved in an accident Wearing a seatbelt when driving or riding in a car Wearing proper protective gear when playing contact sports, especially American football, rugby, and hockey, or refraining from such activities Minimizing anticoagulant use (including aspirin) if at all possible as they increase the risk of hemorrhage after a head injury Additionally, one should always seek medical attention after sustaining head trauma due to a fall or accident. The sooner that one receives medical attention for a traumatic brain injury, the less likely one is to experience long-term or severe effects. Management Most acute cases of aphasia recover some or most skills by participating in speech and language therapy. Recovery and improvement can continue for years after the stroke. After the onset of aphasia, there is approximately a six-month period of spontaneous recovery; during this time, the brain is attempting to recover and repair the damaged neurons. Improvement varies widely, depending on the aphasia's cause, type, and severity. Recovery also depends on the person's age, health, motivation, handedness, and educational level. Speech and language therapy that is higher intensity, higher dose or provided over a long duration of time leads to significantly better functional communication but people might be more likely to drop out of high intensity treatment (up to 15 hours per week). A total of 20-50 hours of speech and language therapy is necessary for the best recovery. The most improvement happens when 2-5 hours of therapy is provided each week over 4-5 days. Recovery is further improved when besides the therapy people practice tasks at home. Speech and language therapy is also effective if it is delivered online through video or by a family member who has been trained by a professional therapist. Recovery with therapy is also dependent on the recency of stroke and the age of the person. Receiving therapy within a month after the stroke leads to the greatest improvements. 3 or 6 months after the stroke more therapy will be needed but symptoms can still be improved. People with aphasia who are younger than 55 years are the most likely to improve but people older than 75 years can still get better with therapy. There is no one treatment proven to be effective for all types of aphasias. The reason that there is no universal treatment for aphasia is because of the nature of the disorder and the various ways it is presented. Aphasia is rarely exhibited identically, implying that treatment needs to be catered specifically to the individual. Studies have shown that, although there is no consistency on treatment methodology in literature, there is a strong indication that treatment, in general, has positive outcomes. Therapy for aphasia ranges from increasing functional communication to improving speech accuracy, depending on the person's severity, needs and support of family and friends. Group therapy allows individuals to work on their pragmatic and communication skills with other individuals with aphasia, which are skills that may not often be addressed in individual one-on-one therapy sessions. It can also help increase confidence and social skills in a comfortable setting. Evidence does not support the use of transcranial direct current stimulation (tDCS) for improving aphasia after stroke. Moderate quality evidence does indicate naming performance improvements for nouns but not verbs using tDCS Specific treatment techniques include the following: Copy and recall therapy (CART) – repetition and recall of targeted words within therapy may strengthen orthographic representations and improve single word reading, writing, and naming Visual communication therapy (VIC) – the use of index cards with symbols to represent various components of speech Visual action therapy (VAT) – typically treats individuals with global aphasia to train the use of hand gestures for specific items Functional communication treatment (FCT) – focuses on improving activities specific to functional tasks, social interaction, and self-expression Promoting aphasic's communicative effectiveness (PACE) – a means of encouraging normal interaction between people with aphasia and clinicians. In this kind of therapy, the focus is on pragmatic communication rather than treatment itself. People are asked to communicate a given message to their therapists by means of drawing, making hand gestures or even pointing to an object Melodic intonation therapy (MIT) – aims to use the intact melodic/prosodic processing skills of the right hemisphere to help cue retrieval of words and expressive language Centeredness Theory Interview (CTI) - Uses client centered goal formation into the nature of current patient interactions as well as future / desired interactions to improve subjective well-being, cognition and communication. Other – i.e. drawing as a way of communicating, trained conversation partners Semantic feature analysis (SFA) – a type of aphasia treatment that targets word-finding deficits. It is based on the theory that neural connections can be strengthened by using related words and phrases that are similar to the target word, to eventually activate the target word in the brain. SFA can be implemented in multiple forms such as verbally, written, using picture cards, etc. The SLP provides prompting questions to the individual with aphasia in order for the person to name the picture provided. Studies show that SFA is an effective intervention for improving confrontational naming. Melodic intonation therapy is used to treat non-fluent aphasia and has proved to be effective in some cases. However, there is still no evidence from randomized controlled trials confirming the efficacy of MIT in chronic aphasia. MIT is used to help people with aphasia vocalize themselves through speech song, which is then transferred as a spoken word. Good candidates for this therapy include people who have had left hemisphere strokes, non-fluent aphasias such as Broca's, good auditory comprehension, poor repetition and articulation, and good emotional stability and memory. An alternative explanation is that the efficacy of MIT depends on neural circuits involved in the processing of rhythmicity and formulaic expressions (examples taken from the MIT manual: "I am fine," "how are you?" or "thank you"); while rhythmic features associated with melodic intonation may engage primarily left-hemisphere subcortical areas of the brain, the use of formulaic expressions is known to be supported by right-hemisphere cortical and bilateral subcortical neural networks. Systematic reviews support the effectiveness and importance of partner training. According to the National Institute on Deafness and Other Communication Disorders (NIDCD), involving family with the treatment of an aphasic loved one is ideal for all involved, because while it will no doubt assist in their recovery, it will also make it easier for members of the family to learn how best to communicate with them. When a person's speech is insufficient, different kinds of augmentative and alternative communication could be considered such as alphabet boards, pictorial communication books, specialized software for computers or apps for tablets or smartphones. When addressing Wernicke's aphasia, according to Bakheit et al. (2007), the lack of awareness of the language impairments, a common characteristic of Wernicke's aphasia, may affect the rate and extent of therapy outcomes. Robey (1998) determined that at least 2 hours of treatment per week is recommended for making significant language gains. Spontaneous recovery may cause some language gains, but without speech-language therapy, the outcomes can be half as strong as those with therapy. When addressing Broca's aphasia, better outcomes occur when the person participates in therapy, and treatment is more effective than no treatment for people in the acute period. Two or more hours of therapy per week in acute and post-acute stages produced the greatest results. High-intensity therapy was most effective, and low-intensity therapy was almost equivalent to no therapy. People with global aphasia are sometimes referred to as having irreversible aphasic syndrome, often making limited gains in auditory comprehension, and recovering no functional language modality with therapy. With this said, people with global aphasia may retain gestural communication skills that may enable success when communicating with conversational partners within familiar conditions. Process-oriented treatment options are limited, and people may not become competent language users as readers, listeners, writers, or speakers no matter how extensive therapy is. However, people's daily routines and quality of life can be enhanced with reasonable and modest goals. After the first month, there is limited to no healing to language abilities of most people. There is a grim prognosis leaving 83% who were globally aphasic after the first month they will remain globally aphasic at the first year. Some people are so severely impaired that their existing process-oriented treatment approaches offer no signs of progress, and therefore cannot justify the cost of therapy. Perhaps due to the relative rareness of conduction aphasia, few studies have specifically studied the effectiveness of therapy for people with this type of aphasia. From the studies performed, results showed that therapy can help to improve specific language outcomes. One intervention that has had positive results is auditory repetition training. Kohn et al. (1990) reported that drilled auditory repetition training related to improvements in spontaneous speech, Francis et al. (2003) reported improvements in sentence comprehension, and Kalinyak-Fliszar et al. (2011) reported improvements in auditory-visual short-term memory. Individualized service delivery Intensity of treatment should be individualized based on the recency of stroke, therapy goals, and other specific characteristics such as age, size of lesion, overall health status, and motivation. Each individual reacts differently to treatment intensity and is able to tolerate treatment at different times post-stroke. Intensity of treatment after a stroke should be dependent on the person's motivation, stamina, and tolerance for therapy. Outcomes If the symptoms of aphasia last longer than two or three months after a stroke, a complete recovery is unlikely. However, it is important to note that some people continue to improve over a period of years and even decades. Improvement is a slow process that usually involves both helping the individual and family understand the nature of aphasia and learning compensatory strategies for communicating. After a traumatic brain injury (TBI) or cerebrovascular accident (CVA), the brain undergoes several healing and re-organization processes, which may result in improved language function. This is referred to as spontaneous recovery. Spontaneous recovery is the natural recovery the brain makes without treatment, and the brain begins to reorganize and change in order to recover. There are several factors that contribute to a person's chance of recovery caused by stroke, including stroke size and location. Age, sex, and education have not been found to be very predictive. There is also research pointing to damage in the left hemisphere healing more effectively than the right. Specific to aphasia, spontaneous recovery varies among affected people and may not look the same in everyone, making it difficult to predict recovery. Though some cases of Wernicke's aphasia have shown greater improvements than more mild forms of aphasia, people with Wernicke's aphasia may not reach as high a level of speech abilities as those with mild forms of aphasia. Prevalence Aphasia affects about two million people in the U.S. and 250,000 people in Great Britain. Nearly 180,000 people acquire the disorder every year in the U.S., 170,000 due to stroke. Any person of any age can develop aphasia, given that it is often caused by a traumatic injury. However, people who are middle aged and older are the most likely to acquire aphasia, as the other etiologies are more likely at older ages. For example, approximately 75% of all strokes occur in individuals over the age of 65. Strokes account for most documented cases of aphasia: 25% to 40% of people who survive a stroke develop aphasia as a result of damage to the language-processing regions of the brain. History The first recorded case of aphasia is from an Egyptian papyrus, the Edwin Smith Papyrus, which details speech problems in a person with a traumatic brain injury to the temporal lobe. During the second half of the 19th century, aphasia was a major focus for scientists and philosophers who were working in the beginning stages of the field of psychology. In medical research, speechlessness was described as an incorrect prognosis, and there was no assumption that underlying language complications existed. Broca and his colleagues were some of the first to write about aphasia, but Wernicke was the first credited to have written extensively about aphasia being a disorder that contained comprehension difficulties. Despite claims of who reported on aphasia first, it was F.J. Gall that gave the first full description of aphasia after studying wounds to the brain, as well as his observation of speech difficulties resulting from vascular lesions. A recent book on the entire history of aphasia is available (Reference: Tesak, J. & Code, C. (2008) Milestones in the History of Aphasia: Theories and Protagonists. Hove, East Sussex: Psychology Press). Etymology Aphasia is from Greek a- ("without", negative prefix) + phásis (φάσις, "speech"). The word aphasia comes from the word ἀφασία aphasia, in Ancient Greek, which means "speechlessness", derived from ἄφατος aphatos, "speechless" from ἀ- a-, "not, un" and φημί phemi, "I speak". Further research Research is currently being done using functional magnetic resonance imaging (fMRI) to witness the difference in how language is processed in normal brains vs aphasic brains. This will help researchers to understand exactly what the brain must go through in order to recover from Traumatic Brain Injury (TBI) and how different areas of the brain respond after such an injury. Another intriguing approach being tested is that of drug therapy. Research is in progress that will hopefully uncover whether or not certain drugs might be used in addition to speech-language therapy in order to facilitate recovery of proper language function. It's possible that the best treatment for Aphasia might involve combining drug treatment with therapy, instead of relying on one over the other. One other method being researched as a potential therapeutic combination with speech-language therapy is brain stimulation. One particular method, Transcranial Magnetic Stimulation (TMS), alters brain activity in whatever area it happens to stimulate, which has recently led scientists to wonder if this shift in brain function caused by TMS might help people re-learn languages. The research being put into Aphasia has only just begun. Researchers appear to have multiple ideas on how Aphasia could be more effectively treated in the future. See also Agnosia, inability to process sensory information (e.g. inability to recognize objects) Aphasiology, study of language impairment (usually from brain damage) Apraxia of speech, difficulty connecting speech messages from the brain to the mouth Aprosodia Auditory processing disorder Lethologica Lists of language disorders My Beautiful Broken Brain, a 2014 documentary Origin of speech Notes References External links National Aphasia Association Alexia (condition) Communication disorders Language disorders Symptoms and signs: Speech and voice

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https://en.wikipedia.org/wiki/Applesoft%20BASIC

Applesoft BASIC

Applesoft BASIC is a dialect of Microsoft BASIC, developed by Marc McDonald and Ric Weiland, supplied with the Apple II series of computers. It supersedes Integer BASIC and is the BASIC in ROM in all Apple II series computers after the original Apple II model. It is also referred to as FP BASIC (from floating point) because of the Apple DOS command used to invoke it, instead of INT for Integer BASIC. Applesoft BASIC was supplied by Microsoft and its name is derived from the names of both Apple Computer and Microsoft. Apple employees, including Randy Wigginton, adapted Microsoft's interpreter for the Apple II and added several features. The first version of Applesoft was released in 1977 on cassette tape and lacked proper support for high-resolution graphics. Applesoft II, which was made available on cassette and disk and in the ROM of the Apple II Plus and subsequent models, was released in 1978. It is this latter version, which has some syntax differences and support for the Apple II high-resolution graphics modes, that is usually synonymous with the term "Applesoft." A compiler for Applesoft BASIC, TASC (The Applesoft Compiler), was released by Microsoft in 1981. History When Steve Wozniak wrote Integer BASIC for the Apple II, he did not implement support for floating-point arithmetic because he was primarily interested in writing games, a task for which integers alone were sufficient. In 1976, Microsoft had developed Microsoft BASIC for the MOS Technology 6502, but at the time there was no production computer that used it. Upon learning that Apple had a 6502 machine, Microsoft asked if the company were interested in licensing BASIC, but Steve Jobs replied that Apple already had one. The Apple II was unveiled to the public at the West Coast Computer Faire in April 1977 and became available for sale in June. One of the most common customer complaints about the computer was BASIC's lack of floating-point math. Making things more problematic was that the rival Commodore PET personal computer had a floating point-capable BASIC interpreter from the beginning. As Wozniak—the only person who understood Integer BASIC well enough to add floating point features—was busy with the Disk II drive and controller and with Apple DOS, Apple turned to Microsoft. Apple reportedly obtained an eight-year license for Applesoft BASIC from Microsoft for a flat fee of $31,000, renewing it in 1985 through an arrangement that gave Microsoft the rights and source code for Apple's Macintosh version of BASIC. Applesoft was designed to be backwards-compatible with Integer BASIC and uses the core of Microsoft's 6502 BASIC implementation, which includes using the GET command for detecting key presses and not requiring any spaces on program lines. While Applesoft BASIC is slower than Integer BASIC, it has many features that the older BASIC lacks: Atomic strings: A string is no longer an array of characters (as in Integer BASIC and C); it is instead a garbage-collected object (as in Scheme and Java). This allows for string arrays; creates an array of eleven string variables numbered 0–10. Multidimensional arrays (numbers or strings) Single-precision floating-point variables with an 8-bit exponent and a 31-bit significand and improved math capabilities, including trigonometry and logarithmic functions Commands for high-resolution graphics DATA statements, with READ and RESTORE commands, for representing numerical and string values in quantity CHR$, STR$, and VAL functions for converting between string and numeric types (both languages did have the ASC function) User-defined functions: simple one-line functions written in BASIC, with a single parameter Error-trapping: allowing BASIC programs to handle unexpected errors via subroutine written in BASIC Conversely, Applesoft lacks the MOD (remainder) operator from Integer BASIC. Adapting BASIC for the Apple II was a tedious job as Apple received a source listing for Microsoft 6502 BASIC which proved to be buggy and also required the addition of Integer BASIC commands. Since Apple had no 6502 assembler on hand, the development team was forced to send the source code over the phone lines to Call Computer, an outfit that offered compiler services. This was an extremely tedious, slow process and after Call Computer lost the source code due to an equipment malfunction, one of the programmers, Cliff Huston, used his own IMSAI 8080 computer to cross assemble the BASIC source. Features Applesoft is similar to Commodore's BASIC 2.0 aside from features inherited from Integer BASIC. There are a few minor differences such as Applesoft's lack of bitwise operators; otherwise most BASIC programs that do not use hardware-dependent features will run on both BASICs. The statement redirects output to an expansion card, and redirects input from an expansion card. The slot number of the card is specified after the or within the statement. The computer locks-up if there is no card present in the slot. restores output to the 40 column screen and to the keyboard. The statement can be used to redirect output to the printer (e.g. ) where x is the slot number containing the printer port card. To send a BASIC program listing to the printer, the user types . Using on a slot with a disk drive (usually in slot 6) causes Applesoft to boot the disk drive. Using on a slot with an 80 column card (usually in slot 1) switches to 80 column text mode. As with Commodore BASIC, numeric variables are stored as 40-bit floating point; each variable requires five bytes of memory. The programmer may designate variables as integer by following them with a percent sign, in which case they use two bytes and are limited to a range of -32768 to 32767; however BASIC internally converts them back to floating point when performing calculations, while each percent sign also takes an additional byte of program code, so in practice this feature is only useful for reducing the memory usage of large array variables, as it offers no performance benefit. The RND function generates a pseudorandom fractional number between 0 and 1. returns the most recently generated random number. with a negative number will jump to a point in the sequence determined by the particular negative number used. RND with any positive value generates the next number in the sequence, not dependent on the actual value given. Like other implementations of Microsoft BASIC, Applesoft discards spaces (outside of strings and comments) on program lines. LIST adds spaces when displaying code for the sake of readability. Since adds a space before and after every tokenized keyword, it often produces two spaces in a row where one would suffice for readability. The default prompt for INPUT is a question mark. PRINT does not add a leading space in front of numbers. Limitations Through several early models of the Apple II, Applesoft BASIC did not support the use of lowercase letters in programs, except in strings. PRINT is a valid command but print and Print result in a syntax error. Applesoft lacks several commands and functions common to most of the non-6502 Microsoft BASIC interpreters, such as: INSTR (search for a substring in a string) PRINT USING (format numbers in printed output) INKEY$ (check for a keypress without stopping the program; although a PEEK to location $C000 achieves this action) LPRINT (output to a printer instead of the screen) Applesoft does not have commands for file or disk handling, other than to save and load programs via cassette tape. The Apple II disk operating system, known simply as DOS, augments the language to provide such abilities. Only the first two letters of variables names are significant. For example, "LOW" and "LOSS" are treated as the same variable, and attempting to assign a value to "LOSS" overwrites any value assigned to "LOW". A programmer also has to avoid consecutive letters that are Applesoft commands or operations. The name "SCORE" for a variable is interpreted as containing the OR Boolean operator, rendered as SC OR E. "BACKGROUND" contains GR, the command to invoke the low-resolution graphics mode, and results in a syntax error. Sound and graphics The only built-in sound support is the option to PRINT an ASCII bell character to sound the system alert beep. Applesoft supports drawing in the Apple II's low resolution and high resolution modes. There are commands to plot pixels and draw horizontal and vertical lines in low resolution. High resolution allows arbitrary lines and vector-based shape tables for drawing scaled and rotated objects. The only provision for mixing text and graphics is the four lines of text at the bottom of a graphic display. Beginning with the Apple IIe, a "double-high resolution" mode became available on machines with 128k of memory. This mode essentially duplicates the resolution of the original high resolution mode, but including all 16 colors of the low resolution palette. Applesoft does not provide direct support for this mode. Apple IIGS-specific modes are likewise not supported. Extensions Applesoft BASIC can be extended by two means: the ampersand () command and the function. These are two features that call low-level machine-language routines stored in memory, which is useful for routines that need to be fast or require direct access to arbitrary functions or data in memory. The function takes one argument, and can be programmed to derive and return a calculated function value to be used in a numerical expression. is effectively a shorthand for , with an address that is predefined. By calling routines in the Applesoft ROM, it is possible for ampersand routines to parse values that follow the ampersand. Numerous third-party commercial packages were available to extend Applesoft using ampersand routines. Bugs A deficiency with error-trapping via ONERR means that the system stack is not reset if an error-handling routine does not invoke RESUME, potentially leading to a crash. The built-in pseudorandom number generator function RND is capable of producing a predictable series of outputs due to the manner in which the generator is seeded when first powering on. This behavior is contrary to how Apple's documentation describes the function. Performance Wozniak originally referred to his Integer BASIC as "Game BASIC" (having written it so he could implement a Breakout clone for his new computer). Few action games were written in Applesoft BASIC, in large part because the use of floating-point numbers for all math operations degrades performance. Applesoft BASIC programs are stored as a linked list of lines; a GOTO or GOSUB takes linear time. Some programs have the subroutines at the top to reduce the time for calling them. Unlike Integer BASIC, Applesoft does not convert literal numbers (like 100) in the source code to binary when a line is entered. Rather, the ASCII string is converted whenever the line is executed. Since variable lookup is often faster than this conversion, it can be faster to store numeric constants used inside loops in variables before the loop is entered. Sample code Hello World in Applesoft BASIC can be entered as the following: 10TEXT:HOME 20?"HELLO WORLD" Multiple commands can be included on the same line of code if separated by a colon (:). The ? can be used in Applesoft BASIC (and almost all versions of Microsoft BASIC) as a shortcut for "PRINT", though spelling out the word is not only acceptable but canonical—Applesoft converted "?" in entered programs to the same token as "PRINT" (thus no memory is actually saved by using "?"), thus either appears as "PRINT" when a program is listed. The program above appears in a LIST command as: 10 TEXT : HOME 20 PRINT "HELLO WORLD" When Applesoft II BASIC was initially released in mid-1978, it came on cassette tape and could be loaded into memory via the Apple II's machine language monitor. When the enhanced Apple II+ replaced the original II in 1979, Applesoft was now included in ROM and automatically started on power-up if no bootable floppy disk was present. Conversely, Integer BASIC was now removed from ROM and turned into an executable file on the DOS 3.3 disk. Early evolution The original Applesoft, stored in RAM as documented in its Reference Manual of November 1977, has smaller interpreter code than the later Applesoft II, occupying 8½ KB of memory, instead of the 10 KB used by the later Applesoft II. Consequently, it lacks a number of command features developed for the later, mainstream version: All commands supporting Apple's "high resolution" graphics (9 total) Error-trapping with ONERR...GOTO and RESUME Machine-routine shorthand call "&" Screen-clearing HOME (a call to a system ROM routine) Text-output control NORMAL, INVERSE, FLASH and SPEED= The print-space function SPC() is listed among reserved words in the manual, but is not otherwise documented (the TAB() print-function is documented) Cassette tape storage of numerical arrays: STORE and RECALL Device response: WAIT as well as several the later version would have, that had already been present in Apple's Integer BASIC: Program-line deletion: DEL Machine-routine access: CALL Peripheral device access: IN# and PR# (although IN without "#" is listed among reserved words) Memory range control: HIMEM: and LOMEM: Execution tracking for debugging: TRACE and NOTRACE Screen-positioning: HTAB and VTAB Subroutine aborting POP Functions PDL() to read the analog controllers, and SCRN() to read the low-resolution graphics screen (both accessing system ROM routines) In addition, its low-resolution graphics commands have different names from their Integer BASIC/Applesoft II counterparts. All command names are of the form PLTx such that GR, COLOR=, PLOT, HLIN and VLIN are called PLTG, PLTC, PLTP, PLTH, and PLTV, respectively. The command for returning to text mode, known as TEXT in other versions, is simply TEX, and carries the proviso that it has to be the last statement in a program line. Applesoft BASIC 1.x was closer to Microsoft's original 6502 BASIC code than the later Applesoft II; it retained the Memory Size? prompt and displayed a Microsoft copyright notice. To maintain consistency with Integer BASIC, the "Ok" prompt from Microsoft's code was replaced by a ] character. Applesoft 1.x also prompted the user upon loading if he wished to disable the REM statement and the LET keyword in assignment statements in exchange for lores graphics commands. The USR() function is also defined differently, serving as a stand-in for the absent CALL command. Its argument is not for passing a numerical value to the machine-language routine, but is instead the call-address of the routine itself; there is no "hook" to pre-define the address. All of several examples in the manual use the function only to access "system monitor ROM" routines, or short user-routines to manipulate the ROM routines. No mention is made of any code to calculate the value returned by the function itself; the function is always shown being assigned to "dummy" variables, which, without action to set a value by user-code, just receive a meaningless value handed back to them. Even accessed ROM routines that return values (in examples, those that provide the service of PDL() and SCRN() functions) merely have their values stored, by user-routines, in locations that are separately PEEKed in a subsequent statement. Unlike in Integer BASIC and Applesoft II, the Boolean operators AND, OR and NOT perform bitwise operations on 16-bit integer values. If they are given values outside that range, an error results. The terms OUT and PLT (and the aforementioned IN) appear in the list of reserved words, but are not explained anywhere in the manual. Related BASICs Coleco claimed that its Adam home computer's SmartBASIC was source-code compatible with Applesoft. Microsoft licensed a BASIC compatible with Applesoft to VTech for its Laser 128 clone. See also ALF's Formula Transfer Link, speed enhancement for Applesoft BASIC Chinese BASIC, a Chinese-localized version of Applesoft BASIC Apple III BASICs from Apple and Microsoft References This article includes text from Everything2, licensed under GFDL. External links Disassembled ROM AppleSoft BASIC in JavaScript Apple II software BASIC interpreters Discontinued Microsoft BASICs BASIC programming language family Microsoft programming languages

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https://en.wikipedia.org/wiki/Adalbert%20of%20Prague

Adalbert of Prague

Adalbert of Prague (, , , , ; 95623 April 997), known in the Czech Republic, Poland and Slovakia by his birth name Vojtěch (), was a Czech missionary and Christian saint. He was the Bishop of Prague and a missionary to the Hungarians, Poles, and Prussians, who was martyred in his efforts to convert the Baltic Prussians to Christianity. He is said to be the composer of the oldest Czech hymn Hospodine, pomiluj ny and Bogurodzica, the oldest known Polish hymn, but his authorship of them has not been confirmed. Adalbert was later declared the patron saint of the Czech Republic, Poland, and the Duchy of Prussia. He is also the patron saint of the Archdiocese of Esztergom in Hungary. Life Early years Born as Vojtěch in 952 or in gord Libice, he belonged to the Slavnik clan, one of the two most powerful families in Bohemia. Events from his life were later recorded by a Bohemian priest Cosmas of Prague (1045–1125). Vojtěch's father was Slavník (d. 978–981), a duke ruling a province centred at Libice. His mother was Střezislava (d. 985–987), and according to David Kalhous belonged to the Přemyslid dynasty. He had five brothers: Soběslav, Spytimír, Dobroslav, Pořej, and Čáslav. Cosmas also refers to Radim (later Gaudentius) as a brother; who is believed to have been a half-brother by his father's liaison with another woman. After he survived a grave illness in childhood, his parents decided to dedicate him to the service of God. Adalbert was well educated, having studied for approximately ten years (970-80) in Magdeburg under Adalbert of Magdeburg. The young Vojtěch took his tutor's name "Adalbert" at his Confirmation. Episcopacy In 981 Adalbert of Magdeburg died, and his young protege Adalbert returned to Bohemia. Later Bishop Dietmar of Prague ordained him a Catholic priest. In 982, Bishop Dietmar died, and Adalbert, despite being under canonical age, was chosen to succeed him as Bishop of Prague. Amiable and somewhat worldly, he was not expected to trouble the secular powers by making excessive claims for the Church. Although Adalbert was from a wealthy family, he avoided comfort and luxury, and was noted for his charity and austerity. After six years of preaching and prayer, he had made little headway in evangelizing the Bohemians, who maintained deeply embedded pagan beliefs. Adalbert opposed the participation of Christians in the slave trade and complained of polygamy and idolatry, which were common among the people. Once he started to propose reforms he was met with opposition from both the secular powers and the clergy. His family refused to support Duke Boleslaus in an unsuccessful war against Poland. Adalbert was no longer welcome and eventually forced into exile. In 988 he went to Rome. He lived as a hermit at the Benedictine monastery of Saint Alexis. Five years later, Boleslaus requested that the Pope send Adalbert back to Prague, in hopes of securing his family's support. Pope John XV agreed, with the understanding that Adalbert was free to leave Prague if he continued to encounter entrenched resistance. Adalbert returned as bishop of Prague, where he was initially received with demonstrations of apparent joy. Together with a group of Italian Benedictine monks which brought with him, he founded in 14 January 993 a monastery in Břevnov (then situated westward from Prague, now part of the city), the second oldest monastery on Czech territory. In 995, the Slavniks' former rivalry with the Přemyslids, who were allied with the powerful Bohemian clan of the Vršovids, resulted in the storming of the Slavnik town of Libice nad Cidlinou, which was led by the Přemyslid Boleslaus II the Pious. During the struggle four or five of Adalbert's brothers were killed. The Zlič Principality became part of the Přemyslids' estate. Adalbert unsuccessfully attempted to protect a noblewoman caught in adultery. She had fled to a convent, where she was killed. In upholding the right of sanctuary, Bishop Adalbert responded by excommunicating the murderers. Butler suggests that the incident was orchestrated by enemies of his family. After this, Adalbert could not safely stay in Bohemia and escaped from Prague. Strachkvas was eventually appointed to be his successor. However, Strachkvas suddenly died during the liturgy at which he was to accede to his episcopal office in Prague. The cause of his death is still ambiguous. The Pope directed Adalbert to resume his see, but believing that he would not be allowed back, Adalbert requested a brief as an itinerant missionary. Adalbert then traveled to Hungary and probably baptized Géza of Hungary and his son Stephen in Esztergom. Then he went to Poland where he was cordially welcomed by then-Duke Boleslaus I and installed as Bishop of Gniezno. Mission and martyrdom in Prussia Adalbert again relinquished his diocese, namely that of Gniezno, and set out as a missionary to preach to the inhabitants near Prussia. Bolesław I, Duke (and, later, King) of Poland, sent soldiers with Adalbert on his mission to the Prussians. The Bishop and his companions, entered Prussian territory and traveled along the coast of the Baltic Sea to Gdańsk. At the borders of the Polish realm, at the mouth of the Vistula River, his half-brother Radim (Gaudentius), Benedict-Bogusza (who was probably a Pole), and at least one interpreter, ventured out into Prussia alone, as Bolesław had only sent his soldiers to escort them to the border. Adalbert achieved some success upon his arrival, however his arrival mostly caused strain upon the local Prussian populations. Partially this was because of the imperious manner with which he preached, but potentially because he preached utilizing a book. The Prussians had an oral society where communication was face to face. To the locals Adalbert reading from a book may have come off as a manifestation of an evil action. He was forced to leave this first village after being struck in the back of the head by an oar by a local chieftain, causing the pages of his book to scatter upon the ground. He and his companions then fled across a river. In the next place that Adalbert tried to preach, his message was met with the locals banging their sticks upon the ground, calling for the death of Adalbert and his companions. Retreating once again Adalbert and his companions went to a market place of Truso (near modern-day Elbląg). Here they were met with a similar response as at the previous place. On the 23 April 997, after mass, while Adalbert and his companions lay in the grass while eating a snack, they were set upon by a pagan mob. The mob was led by a man named Sicco, possibly a pagan priest, who delivered the first blow against Adalbert, before the others joined in. They removed Adalbert's head from his body after he was dead, and mounted on a pole while they returned home. This encounter may also have taken place in Tenkitten and Fischhausen (now Primorsk, Kaliningrad Oblast, Russia). It is recorded that his body was bought back for its weight in gold by King Boleslaus I of Poland. Veneration and relics A few years after his martyrdom, Adalbert was canonized as Saint Adalbert of Prague. His life was written in Vita Sancti Adalberti Pragensis by various authors, the earliest being traced to imperial Aachen and the Bishop of Liège, Notger von Lüttich, although it was previously assumed that the Roman monk John Canaparius wrote the first Vita in 999. Another famous biographer of Adalbert was Bruno of Querfurt who wrote a hagiography of him in 1001–4. Notably, the Přemyslid rulers of Bohemia initially refused to ransom Adalbert's body from the Prussians who murdered him, and therefore it was purchased by Poles. This fact may be explained by Adalbert's belonging to the Slavniks family which was rival to the Přemyslids. Thus Adalbert's bones were preserved in Gniezno, which assisted Boleslaus I of Poland in increasing Polish political and diplomatic power in Europe. According to Bohemian accounts, in 1039 the Bohemian Duke Bretislav I looted the bones of Adalbert from Gniezno in a raid and translated them to Prague. According to Polish accounts, however, he stole the wrong relics, namely those of Gaudentius, while the Poles concealed Adalbert's relics which remain in Gniezno. In 1127 his severed head, which was not in the original purchase according to Roczniki Polskie, was discovered and translated to Gniezno. In 1928, one of the arms of Adalbert, which Bolesław I had given to Holy Roman Emperor Otto III in 1000, was added to the bones preserved in Gniezno. Therefore, today Adalbert has two elaborate shrines in the Prague Cathedral and Royal Cathedral of Gniezno, each of which claims to possess his relics, but which of these bones are his authentic relics is unknown. For example, pursuant to both claims two skulls are attributed to Adalbert. The one in Gniezno was stolen in 1923. The massive bronze doors of Gniezno Cathedral, dating from around 1175, are decorated with eighteen reliefs of scenes from Adalbert's life. They are the only Romanesque ecclesiastical doors in Europe depicting a cycle illustrating the life of a saint, and therefore are a precious relic documenting Adalbert's martyrdom. We can read that door literally and theologically. The one thousandth anniversary of Adalbert's martyrdom was on 23 April 1997. It was commemorated in Poland, the Czech Republic, Germany, Russia, and other nations. Representatives of Catholic, Eastern Orthodox, and Evangelical churches traveled on a pilgrimage to Adalbert's tomb located in Gniezno. Pope John Paul II visited the cathedral and celebrated a liturgy there in which heads of seven European nations and approximately one million faithful participated. A ten-meter cross was erected near the village of Beregovoe (formerly Tenkitten), Kaliningrad Oblast, where Adalbert is thought to have been martyred by the Prussians. Feast day 25 January – commemoration of translation of relics to Church of Saint Roch, 22 April – commemoration in Diocese of Innsbruck, 22 April – commemoration in Catholic Church in England and Wales, 23 April – commemoration of death anniversary, 14 May – commemoration of consecration of church in Aachen 25 August – commemoration of translation of relics from Gniezno to Prague (1039) 26 August – commemoration of translation of relics to Wrocław 20 October – commemoration of translation of relics to Gniezno (1090) 22 October – commemoration of translation of relics to Gniezno 6 November – commemoration of translation of relics to Esztergom, He is also commemorated on 23 April by Evangelical Church in Germany and Eastern Orthodox Church. In popular culture and society The Dagmar and Václav Havel VIZE 97 Foundation Prize, given annually to a distinguished thinker "whose work exceeds the traditional framework of scientific knowledge, contributes to the understanding of science as an integral part of general culture and is concerned with unconventional ways of asking fundamental questions about cognition, being and human existence" includes a massive replica of Adalbert's crozier by Czech artist Jiří Plieštík. St. Vojtech Fellowship was established in 1870 by Slovak Catholic priest Andrej Radlinský. It had facilitated Slovak Catholic thinkers and authors, continuing to publish religious original works and translations to this day. It is the official publishing body of Episcopal Conference of Slovakia. Churches and parishes named for Adalbert See also History of the Czech lands in the Middle Ages History of Poland (966–1385) Congress of Gniezno Gniezno Doors Adalbert of Magdeburg Saint Adalbert of Prague, patron saint archive Statue of Adalbert of Prague, Charles Bridge References Sources Donald Attwater and Catherine R. John, The Penguin Dictionary of Saints, Third Edition (New York: Penguin Books, 1993); . External links Adalbert of Prague Adalbert of Prague 10th-century bishops in Bohemia Roman Catholic bishops of Prague Medieval Bohemian nobility Slavník dynasty People from Nymburk District Czech Christian missionaries Burials at St. Vitus Cathedral Burials at Gniezno Cathedral Czech Roman Catholic saints Polish Roman Catholic saints 10th-century Christian saints 10th-century Christian martyrs 10th century in Hungary 10th century in Poland Christian missionaries in Europe Patron saints of Poland Eastern Orthodox saints

2112

https://en.wikipedia.org/wiki/Associative%20algebra

Associative algebra

In mathematics, an associative algebra A over a commutative ring (often a field) K is a ring A together with a ring homomorphism from K into the center of A. This is thus an algebraic structure with an addition, a multiplication, and a scalar multiplication (the multiplication by the image by the ring homomorphism of an element of K). The addition and multiplication operations together give A the structure of a ring; the addition and scalar multiplication operations together give A the structure of a module or vector space over K. In this article we will also use the term [[algebra over a field|K-algebra]] to mean an associative algebra over K. A standard first example of a K-algebra is a ring of square matrices over a commutative ring K, with the usual matrix multiplication. A commutative algebra is an associative algebra that has a commutative multiplication, or, equivalently, an associative algebra that is also a commutative ring. In this article associative algebras are assumed to have a multiplicative identity, denoted 1; they are sometimes called unital associative algebras for clarification. In some areas of mathematics this assumption is not made, and we will call such structures non-unital associative algebras. We will also assume that all rings are unital, and all ring homomorphisms are unital. Every ring is an associative algebra over its center and over the integers. Definition Let R be a commutative ring (so R could be a field). An associative R-algebra (or more simply, an R-algebra) is a ring that is also an R-module in such a way that the two additions (the ring addition and the module addition) are the same operation, and scalar multiplication satisfies for all r in R and x, y in the algebra. (This definition implies that the algebra, being a ring, is unital, since rings are supposed to have a multiplicative identity.) Equivalently, an associative algebra A is a ring together with a ring homomorphism from R to the center of A. If f is such a homomorphism, the scalar multiplication is (here the multiplication is the ring multiplication); if the scalar multiplication is given, the ring homomorphism is given by . (See also below). Every ring is an associative Z-algebra, where Z denotes the ring of the integers. A is an associative algebra that is also a commutative ring. As a monoid object in the category of modules The definition is equivalent to saying that a unital associative R-algebra is a monoid object in [[category of modules|R-Mod]] (the monoidal category of R-modules). By definition, a ring is a monoid object in the category of abelian groups; thus, the notion of an associative algebra is obtained by replacing the category of abelian groups with the category of modules. Pushing this idea further, some authors have introduced a "generalized ring" as a monoid object in some other category that behaves like the category of modules. Indeed, this reinterpretation allows one to avoid making an explicit reference to elements of an algebra A. For example, the associativity can be expressed as follows. By the universal property of a tensor product of modules, the multiplication (the R-bilinear map) corresponds to a unique R-linear map . The associativity then refers to the identity: From ring homomorphisms An associative algebra amounts to a ring homomorphism whose image lies in the center. Indeed, starting with a ring A and a ring homomorphism whose image lies in the center of A, we can make A an R-algebra by defining for all and . If A is an R-algebra, taking , the same formula in turn defines a ring homomorphism whose image lies in the center. If a ring is commutative then it equals its center, so that a commutative R-algebra can be defined simply as a commutative ring A together with a commutative ring homomorphism . The ring homomorphism η appearing in the above is often called a structure map. In the commutative case, one can consider the category whose objects are ring homomorphisms ; i.e., commutative R-algebras and whose morphisms are ring homomorphisms that are under R; i.e., is (i.e., the coslice category of the category of commutative rings under R.) The prime spectrum functor Spec then determines an anti-equivalence of this category to the category of affine schemes over Spec R. How to weaken the commutativity assumption is a subject matter of noncommutative algebraic geometry and, more recently, of derived algebraic geometry. See also: Generic matrix ring. Algebra homomorphisms A homomorphism between two R-algebras is an R-linear ring homomorphism. Explicitly, is an associative algebra homomorphism if The class of all R-algebras together with algebra homomorphisms between them form a category, sometimes denoted R-Alg. The subcategory of commutative R-algebras can be characterized as the coslice category R/CRing where CRing is the category of commutative rings. Examples The most basic example is a ring itself; it is an algebra over its center or any subring lying in the center. In particular, any commutative ring is an algebra over any of its subrings. Other examples abound both from algebra and other fields of mathematics. Algebra Any ring A can be considered as a Z-algebra. The unique ring homomorphism from Z to A is determined by the fact that it must send 1 to the identity in A. Therefore, rings and Z-algebras are equivalent concepts, in the same way that abelian groups and Z-modules are equivalent. Any ring of characteristic n is a (Z/nZ')-algebra in the same way. Given an R-module M, the endomorphism ring of M, denoted EndR(M) is an R-algebra by defining . Any ring of matrices with coefficients in a commutative ring R forms an R-algebra under matrix addition and multiplication. This coincides with the previous example when M is a finitely-generated, free R-module. In particular, the square n-by-n matrices with entries from the field K form an associative algebra over K. The complex numbers form a 2-dimensional commutative algebra over the real numbers. The quaternions form a 4-dimensional associative algebra over the reals (but not an algebra over the complex numbers, since the complex numbers are not in the center of the quaternions). Every polynomial ring is a commutative R-algebra. In fact, this is the free commutative R-algebra on the set . The free R-algebra on a set E is an algebra of "polynomials" with coefficients in R and noncommuting indeterminates taken from the set E. The tensor algebra of an R-module is naturally an associative R-algebra. The same is true for quotients such as the exterior and symmetric algebras. Categorically speaking, the functor that maps an R-module to its tensor algebra is left adjoint to the functor that sends an R-algebra to its underlying R-module (forgetting the multiplicative structure). The following ring is used in the theory of λ-rings. Given a commutative ring A, let the set of formal power series with constant term 1. It is an abelian group with the group operation that is the multiplication of power series. It is then a ring with the multiplication, denoted by , such that determined by this condition and the ring axioms. The additive identity is 1 and the multiplicative identity is . Then A has a canonical structure of a G(A)-algebra given by the ring homomorphism On the other hand, if A is a λ-ring, then there is a ring homomorphism giving G(A) a structure of an A-algebra. Given a module M over a commutative ring R, the direct sum of modules has a structure of an R-algebra by thinking M consists of infinitesimal elements; i.e., the multiplication is given as . The notion is sometimes called the algebra of dual numbers. A quasi-free algebra, introduced by Cuntz and Quillen, is a sort of generalization of a free algebra and a semisimple algebra over an algebraically closed field. Representation theory The universal enveloping algebra of a Lie algebra is an associative algebra that can be used to study the given Lie algebra. If G is a group and R is a commutative ring, the set of all functions from G to R with finite support form an R-algebra with the convolution as multiplication. It is called the group algebra of G. The construction is the starting point for the application to the study of (discrete) groups. If G is an algebraic group (e.g., semisimple complex Lie group), then the coordinate ring of G is the Hopf algebra A corresponding to G. Many structures of G translate to those of A. A quiver algebra (or a path algebra) of a directed graph is the free associative algebra over a field generated by the paths in the graph. Analysis Given any Banach space X, the continuous linear operators form an associative algebra (using composition of operators as multiplication); this is a Banach algebra. Given any topological space X, the continuous real- or complex-valued functions on X form a real or complex associative algebra; here the functions are added and multiplied pointwise. The set of semimartingales defined on the filtered probability space forms a ring under stochastic integration. The Weyl algebra An Azumaya algebra Geometry and combinatorics The Clifford algebras, which are useful in geometry and physics. Incidence algebras of locally finite partially ordered sets are associative algebras considered in combinatorics. The partition algebra and its subalgebras, including the Brauer algebra and the Temperley-Lieb algebra. A differential graded algebra is an associative algebra together with a grading and a differential. For example, the de Rham algebra , where consists of differential p-forms on a manifold M, is a differential graded algebra. Mathematical physics A Poisson algebra is a commutative associative algebra over a field together with a structure of a Lie algebra so that the Lie bracket satisfies the Leibniz rule; i.e., . Given a Poisson algebra , consider the vector space of formal power series over . If has a structure of an associative algebra with multiplication such that, for , , then is called a deformation quantization of . A quantized enveloping algebra. The dual of such an algebra turns out to be an associative algebra (see ) and is, philosophically speaking, the (quantized) coordinate ring of a quantum group. Gerstenhaber algebra Constructions Subalgebras A subalgebra of an R-algebra A is a subset of A which is both a subring and a submodule of A. That is, it must be closed under addition, ring multiplication, scalar multiplication, and it must contain the identity element of A. Quotient algebras Let A be an R-algebra. Any ring-theoretic ideal I in A is automatically an R-module since . This gives the quotient ring the structure of an R-module and, in fact, an R-algebra. It follows that any ring homomorphic image of A is also an R-algebra. Direct products The direct product of a family of R-algebras is the ring-theoretic direct product. This becomes an R-algebra with the obvious scalar multiplication. Free products One can form a free product of R-algebras in a manner similar to the free product of groups. The free product is the coproduct in the category of R-algebras. Tensor products The tensor product of two R-algebras is also an R-algebra in a natural way. See tensor product of algebras for more details. Given a commutative ring R and any ring A the tensor product R ⊗Z A can be given the structure of an R-algebra by defining . The functor which sends A to is left adjoint to the functor which sends an R-algebra to its underlying ring (forgetting the module structure). See also: Change of rings'. Free algebra A free algebra is an algebra generated by symbols. If one imposes commutativity; i.e., take the quotient by commutators, then one gets a polynomial algebra. Dual of an associative algebra Let A be an associative algebra over a commutative ring R. Since A is in particular a module, we can take the dual module A* of A. A priori, the dual A* need not have a structure of an associative algebra. However, A may come with an extra structure (namely, that of a Hopf algebra) so that the dual is also an associative algebra. For example, take A to be the ring of continuous functions on a compact group G. Then, not only A is an associative algebra, but it also comes with the co-multiplication and co-unit . The "co-" refers to the fact that they satisfy the dual of the usual multiplication and unit in the algebra axiom. Hence, the dual A* is an associative algebra. The co-multiplication and co-unit are also important in order to form a tensor product of representations of associative algebras (see below). Enveloping algebra Given an associative algebra A over a commutative ring R, the enveloping algebra Ae of A is the algebra or , depending on authors. Note that a bimodule over A is exactly a left module over Ae. Separable algebra Let A be an algebra over a commutative ring R. Then the algebra A is a right module over with the action . Then, by definition, A is said to separable if the multiplication map splits as an Ae-linear map, where is an Ae-module by . Equivalently, A is separable if it is a projective module over ; thus, the -projective dimension of A, sometimes called the bidimension of A, measures the failure of separability. Finite-dimensional algebra Let A be a finite-dimensional algebra over a field k. Then A is an Artinian ring. Commutative case As A is Artinian, if it is commutative, then it is a finite product of Artinian local rings whose residue fields are algebras over the base field k. Now, a reduced Artinian local ring is a field and thus the following are equivalent is separable. is reduced, where is some algebraic closure of k. for some n. is the number of -algebra homomorphisms . Let , the profinite group of finite Galois extensions of k. Then is an anti-equivalence of the category of finite-dimensional separable k-algebras to the category of finite sets with continuous -actions. Noncommutative case Since a simple Artinian ring is a (full) matrix ring over a division ring, if A is a simple algebra, then A is a (full) matrix algebra over a division algebra D over k; i.e., . More generally, if A is a semisimple algebra, then it is a finite product of matrix algebras (over various division k-algebras), the fact known as the Artin–Wedderburn theorem. The fact that A is Artinian simplifies the notion of a Jacobson radical; for an Artinian ring, the Jacobson radical of A is the intersection of all (two-sided) maximal ideals (in contrast, in general, a Jacobson radical is the intersection of all left maximal ideals or the intersection of all right maximal ideals.) The Wedderburn principal theorem states: for a finite-dimensional algebra A with a nilpotent ideal I, if the projective dimension of as a module over the enveloping algebra is at most one, then the natural surjection splits; i.e., A contains a subalgebra B such that is an isomorphism. Taking I to be the Jacobson radical, the theorem says in particular that the Jacobson radical is complemented by a semisimple algebra. The theorem is an analog of Levi's theorem for Lie algebras. Lattices and orders Let R be a Noetherian integral domain with field of fractions K (for example, they can be Z, Q). A lattice L in a finite-dimensional K-vector space V is a finitely generated R-submodule of V that spans V; in other words, . Let AK be a finite-dimensional K-algebra. An order in AK is an R-subalgebra that is a lattice. In general, there are a lot fewer orders than lattices; e.g., Z is a lattice in Q but not an order (since it is not an algebra). A maximal order is an order that is maximal among all the orders. Related concepts Coalgebras An associative algebra over K is given by a K-vector space A endowed with a bilinear map having two inputs (multiplicator and multiplicand) and one output (product), as well as a morphism identifying the scalar multiples of the multiplicative identity. If the bilinear map is reinterpreted as a linear map (i.e., morphism in the category of K-vector spaces) (by the universal property of the tensor product), then we can view an associative algebra over K as a K-vector space A endowed with two morphisms (one of the form and one of the form ) satisfying certain conditions that boil down to the algebra axioms. These two morphisms can be dualized using categorial duality by reversing all arrows in the commutative diagrams that describe the algebra axioms; this defines the structure of a coalgebra. There is also an abstract notion of F-coalgebra, where F is a functor. This is vaguely related to the notion of coalgebra discussed above. Representations A representation of an algebra A is an algebra homomorphism from A to the endomorphism algebra of some vector space (or module) V. The property of ρ being an algebra homomorphism means that ρ preserves the multiplicative operation (that is, for all x and y in A), and that ρ sends the unit of A to the unit of End(V) (that is, to the identity endomorphism of V). If A and B are two algebras, and and are two representations, then there is a (canonical) representation of the tensor product algebra on the vector space . However, there is no natural way of defining a tensor product of two representations of a single associative algebra in such a way that the result is still a representation of that same algebra (not of its tensor product with itself), without somehow imposing additional conditions. Here, by tensor product of representations, the usual meaning is intended: the result should be a linear representation of the same algebra on the product vector space. Imposing such additional structure typically leads to the idea of a Hopf algebra or a Lie algebra, as demonstrated below. Motivation for a Hopf algebra Consider, for example, two representations and . One might try to form a tensor product representation according to how it acts on the product vector space, so that However, such a map would not be linear, since one would have for . One can rescue this attempt and restore linearity by imposing additional structure, by defining an algebra homomorphism , and defining the tensor product representation as Such a homomorphism Δ is called a comultiplication if it satisfies certain axioms. The resulting structure is called a bialgebra. To be consistent with the definitions of the associative algebra, the coalgebra must be co-associative, and, if the algebra is unital, then the co-algebra must be co-unital as well. A Hopf algebra is a bialgebra with an additional piece of structure (the so-called antipode), which allows not only to define the tensor product of two representations, but also the Hom module of two representations (again, similarly to how it is done in the representation theory of groups). Motivation for a Lie algebra One can try to be more clever in defining a tensor product. Consider, for example, so that the action on the tensor product space is given by . This map is clearly linear in x, and so it does not have the problem of the earlier definition. However, it fails to preserve multiplication: . But, in general, this does not equal . This shows that this definition of a tensor product is too naive; the obvious fix is to define it such that it is antisymmetric, so that the middle two terms cancel. This leads to the concept of a Lie algebra. Non-unital algebras Some authors use the term "associative algebra" to refer to structures which do not necessarily have a multiplicative identity, and hence consider homomorphisms which are not necessarily unital. One example of a non-unital associative algebra is given by the set of all functions whose limit as x nears infinity is zero. Another example is the vector space of continuous periodic functions, together with the convolution product. See also Abstract algebra Algebraic structure Algebra over a field Sheaf of algebras, a sort of an algebra over a ringed space Deligne's conjecture on Hochschild cohomology Notes Citations References James Byrnie Shaw (1907) A Synopsis of Linear Associative Algebra, link from Cornell University Historical Math Monographs. Ross Street (1998) Quantum Groups: an entrée to modern algebra, an overview of index-free notation. Algebras Algebraic geometry

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https://en.wikipedia.org/wiki/IBM%20AIX

IBM AIX

AIX (Advanced Interactive eXecutive, pronounced ,) is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms. Background Originally released for the IBM RT PC RISC workstation in 1986, AIX has supported a wide variety of hardware platforms, including the IBM RS/6000 series and later Power and PowerPC-based systems, IBM System i, System/370 mainframes, PS/2 personal computers, and the Apple Network Server. It is currently supported on IBM Power Systems alongside IBM i and Linux. AIX is based on UNIX System V with 4.3BSD-compatible extensions. It is certified to the UNIX 03 and UNIX V7 marks of the Single UNIX Specification, beginning with AIX versions 5.3 and 7.2 TL5 respectively. Older versions were previously certified to the UNIX 95 and UNIX 98 marks. AIX was the first operating system to have a journaling file system, and IBM has continuously enhanced the software with features such as processor, disk and network virtualization, dynamic hardware resource allocation (including fractional processor units), and reliability engineering ported from its mainframe designs. History Unix started life at AT&T's Bell Labs research center in the early 1970s, running on DEC minicomputers. By 1976, the operating system was in use at various academic institutions, including Princeton, where Tom Lyon and others ported it to the S/370, to run as a guest OS under VM/370. This port would later grow out to become UTS, a mainframe Unix offering by IBM's competitor Amdahl Corporation. IBM's own involvement in Unix can be dated to 1979, when it assisted Bell Labs in doing its own Unix port to the 370 (to be used as a build host for the 5ESS switch's software). In the process, IBM made modifications to the TSS/370 hypervisor to better support Unix. It took until 1985 for IBM to offer its own Unix on the S/370 platform, IX/370, which was developed by Interactive Systems Corporation and intended by IBM to compete with Amdahl UTS. The operating system offered special facilities for interoperating with PC/IX, Interactive/IBM's version of Unix for IBM PC compatible hardware, and was licensed at $10,000 per sixteen concurrent users. AIX Version 1, introduced in 1986 for the IBM RT PC workstation, was based on UNIX System V Releases 1 and 2. In developing AIX, IBM and Interactive Systems Corporation (whom IBM contracted) also incorporated source code from 4.2 and 4.3 BSD UNIX. Among other variants, IBM later produced AIX Version 3 (also known as AIX/6000), based on System V Release 3, for their POWER-based RS/6000 platform. Since 1990, AIX has served as the primary operating system for the RS/6000 series (later renamed IBM eServer pSeries, then IBM System p, and now IBM Power Systems). AIX Version 4, introduced in 1994, added symmetric multiprocessing with the introduction of the first RS/6000 SMP servers and continued to evolve through the 1990s, culminating with AIX 4.3.3 in 1999. Version 4.1, in a slightly modified form, was also the standard operating system for the Apple Network Server systems sold by Apple Computer to complement the Macintosh line. In the late 1990s, under Project Monterey, IBM and the Santa Cruz Operation planned to integrate AIX and UnixWare into a single 32-bit/64-bit multiplatform UNIX with particular emphasis on running on Intel IA-64 (Itanium) architecture CPUs. A beta test version of AIX 5L for IA-64 systems was released, but according to documents released in the SCO v. IBM lawsuit, less than forty licenses for the finished Monterey Unix were ever sold before the project was terminated in 2002. In 2003, the SCO Group alleged that (among other infractions) IBM had misappropriated licensed source code from UNIX System V Release 4 for incorporation into AIX; SCO subsequently withdrew IBM's license to develop and distribute AIX. IBM maintains that their license was irrevocable, and continued to sell and support the product until the litigation was adjudicated. AIX was a component of the 2003 SCO v. IBM lawsuit, in which the SCO Group filed a lawsuit against IBM, alleging IBM contributed SCO's intellectual property to the Linux codebase. The SCO Group, who argued they were the rightful owners of the copyrights covering the Unix operating system, attempted to revoke IBM's license to sell or distribute the AIX operating system. In March 2010, a jury returned a verdict finding that Novell, not the SCO Group, owns the rights to Unix. AIX 6 was announced in May 2007, and it ran as an open beta from June 2007 until the general availability (GA) of AIX 6.1 on November 9, 2007. Major new features in AIX 6.1 included full role-based access control, workload partitions (which enable application mobility), enhanced security (Addition of AES encryption type for NFS v3 and v4), and Live Partition Mobility on the POWER6 hardware. AIX 7.1 was announced in April 2010, and an open beta ran until general availability of AIX 7.1 in September 2010. Several new features, including better scalability, enhanced clustering and management capabilities were added. AIX 7.1 includes a new built-in clustering capability called Cluster Aware AIX. AIX is able to organize multiple LPARs through the multipath communications channel to neighboring CPUs, enabling very high-speed communication between processors. This enables multi-terabyte memory address range and page table access to support global petabyte shared memory space for AIX POWER7 clusters so that software developers can program a cluster as if it were a single system, without using message passing (i.e. semaphore-controlled Inter-process Communication). AIX administrators can use this new capability to cluster a pool of AIX nodes. By default, AIX V7.1 pins kernel memory and includes support to allow applications to pin their kernel stack. Pinning kernel memory and the kernel stack for applications with real-time requirements can provide performance improvements by ensuring that the kernel memory and kernel stack for an application is not paged out. AIX 7.2 was announced in October 2015, and released in December 2015. The principal feature of AIX 7.2 is the Live Kernel Update capability, which allows OS fixes to replace the entire AIX kernel with no impact to applications, by live migrating workloads to a temporary surrogate AIX OS partition while the original OS partition is patched. AIX 7.2 was also restructured to remove obsolete components. The networking component, bos.net.tcp.client was repackaged to allow additional installation flexibility. Unlike AIX 7.1, AIX 7.2 is only supported on systems based on POWER7 or later processors. In January 2023, IBM moved development of AIX to its Indian subsidiary. Supported hardware platforms IBM RT PC The original AIX (sometimes called AIX/RT) was developed for the IBM RT PC workstation by IBM in conjunction with Interactive Systems Corporation, who had previously ported UNIX System III to the IBM PC for IBM as PC/IX. According to its developers, the AIX source (for this initial version) consisted of one million lines of code. Installation media consisted of eight 1.2M floppy disks. The RT was based on the IBM ROMP microprocessor, the first commercial RISC chip. This was based on a design pioneered at IBM Research (the IBM 801). One of the novel aspects of the RT design was the use of a microkernel, called Virtual Resource Manager (VRM). The keyboard, mouse, display, disk drives and network were all controlled by a microkernel. One could "hotkey" from one operating system to the next using the Alt-Tab key combination. Each OS in turn would get possession of the keyboard, mouse and display. Besides AIX v2, the PICK OS also included this microkernel. Much of the AIX v2 kernel was written in the PL/8 programming language, which proved troublesome during the migration to AIX v3. AIX v2 included full TCP/IP networking, as well as SNA and two networking file systems: NFS, licensed from Sun Microsystems, and Distributed Services (DS). DS had the distinction of being built on top of SNA, and thereby being fully compatible with DS on and on midrange systems running OS/400 through IBM i. For the graphical user interfaces, AIX v2 came with the X10R3 and later the X10R4 and X11 versions of the X Window System from MIT, together with the Athena widget set. Compilers for Fortran and C were available. IBM PS/2 series AIX PS/2 (also known as AIX/386) was developed by Locus Computing Corporation under contract to IBM. AIX PS/2, first released in October 1988, ran on IBM PS/2 personal computers with Intel 386 and compatible processors. The product was announced in September 1988 with a baseline tag price of $595, although some utilities like uucp were included in a separate Extension package priced at $250. nroff and troff for AIX were also sold separately in a Text Formatting System package priced at $200. The TCP/IP stack for AIX PS/2 retailed for another $300. The X Window System package was priced at $195, and featured a graphical environment called the AIXwindows Desktop, based on IXI's X.desktop. The C and FORTRAN compilers each had a price tag of $275. Locus also made available their DOS Merge virtual machine environment for AIX, which could run MS DOS 3.3 applications inside AIX; DOS Merge was sold separately for another $250. IBM also offered a $150 AIX PS/2 DOS Server Program, which provided file server and print server services for client computers running PC DOS 3.3. The last version of PS/2 AIX is 1.3. It was released in 1992 and announced to add support for non-IBM (non-microchannel) computers as well. Support for PS/2 AIX ended in March 1995. IBM mainframes In 1988, IBM announced AIX/370, also developed by Locus Computing. AIX/370 was IBM's fourth attempt to offer Unix-like functionality for their mainframe line, specifically the System/370 (the prior versions were a TSS/370-based Unix system developed jointly with AT&T c.1980, a VM/370-based system named VM/IX developed jointly with Interactive Systems Corporation c.1984, and a VM/370-based version of TSS/370 named IX/370 which was upgraded to be compatible with UNIX System V). AIX/370 was released in 1990 with functional equivalence to System V Release 2 and 4.3BSD as well as IBM enhancements. With the introduction of the ESA/390 architecture, AIX/370 was replaced by AIX/ESA in 1991, which was based on OSF/1, and also ran on the System/390 platform. This development effort was made partly to allow IBM to compete with Amdahl UTS. Unlike AIX/370, AIX/ESA ran both natively as the host operating system, and as a guest under VM. AIX/ESA, while technically advanced, had little commercial success, partially because UNIX functionality was added as an option to the existing mainframe operating system, MVS, as MVS/ESA SP Version 4 Release 3 OpenEdition in 1994, and continued as an integral part of MVS/ESA SP Version 5, OS/390 and z/OS, with the name eventually changing from OpenEdition to Unix System Services. IBM also provided OpenEdition in VM/ESA Version 2 through z/VM. IA-64 systems As part of Project Monterey, IBM released a beta test version of AIX 5L for the IA-64 (Itanium) architecture in 2001, but this never became an official product due to lack of interest. Apple Network Servers The Apple Network Server (ANS) systems were PowerPC-based systems designed by Apple Computer to have numerous high-end features that standard Apple hardware did not have, including swappable hard drives, redundant power supplies, and external monitoring capability. These systems were more or less based on the Power Macintosh hardware available at the time but were designed to use AIX (versions 4.1.4 or 4.1.5) as their native operating system in a specialized version specific to the ANS called AIX for Apple Network Servers. AIX was only compatible with the Network Servers and was not ported to standard Power Macintosh hardware. It should not be confused with A/UX, Apple's earlier version of Unix for 68k-based Macintoshes. POWER ISA/PowerPC/Power ISA-based systems The release of AIX version 3 (sometimes called AIX/6000) coincided with the announcement of the first POWER1-based IBM RS/6000 models in 1990. AIX v3 innovated in several ways on the software side. It was the first operating system to introduce the idea of a journaling file system, JFS, which allowed for fast boot times by avoiding the need to ensure the consistency of the file systems on disks (see fsck) on every reboot. Another innovation was shared libraries which avoid the need for static linking from an application to the libraries it used. The resulting smaller binaries used less of the hardware RAM to run, and used less disk space to install. Besides improving performance, it was a boon to developers: executable binaries could be in the tens of kilobytes instead of a megabyte for an executable statically linked to the C library. AIX v3 also scrapped the microkernel of AIX v2, a contentious move that resulted in v3 containing no PL/8 code and being somewhat more "pure" than v2. Other notable subsystems included: IRIS GL, a 3D rendering library, the progenitor of OpenGL. IRIS GL was licensed by IBM from SGI in 1987, then still a fairly small company, which had sold only a few thousand machines at the time. SGI also provided the low-end graphics card for the RS/6000, capable of drawing 20,000 gouraud-shaded triangles per second. The high-end graphics card was designed by IBM, a follow-on to the mainframe-attached IBM 5080, capable of rendering 990,000 vectors per second. PHIGS, another 3D rendering API, popular in automotive CAD/CAM circles, and at the core of CATIA. Full implementation of version 11 of the X Window System, together with Motif as the recommended widget toolkit and window manager. Network file systems: NFS from Sun; AFS, the Andrew File System; and DFS, the Distributed File System. NCS, the Network Computing System, licensed from Apollo Computer (later acquired by HP). DPS on-screen display system. This was notable as a "plan B" in case the X11+Motif combination failed in the marketplace. However, it was highly proprietary, supported only by Sun, NeXT, and IBM. This cemented its failure in the marketplace in the face of the open systems challenge of X11+Motif and its lack of 3D capability. In addition, AIX applications can run in the PASE subsystem under IBM i. Source code IBM formerly made the AIX for RS/6000 source code available to customers for an additional fee; in 1991, IBM customers could order the AIX 3.0 source code for a one-time charge of US$60,000; subsequently, IBM released the AIX 3.1 source code in 1992, and AIX 3.2 in 1993. These source code distributions excluded certain files (authored by third-parties) which IBM did not have rights to redistribute, and also excluded layered products such as the MS-DOS emulator and the C compiler. Furthermore, in order to be able to license the AIX source code, the customer first had to procure source code license agreements with AT&T and the University of California, Berkeley. Versions POWER/PowerPC/Power ISA releases AIX V7.3, December 10, 2021 Requires POWER8 or newer CPUs AIX V7.2, October 5, 2015 Live update for Interim Fixes, Service Packs and Technology Levels replaces the entire AIX kernel without impacting applications Flash based filesystem caching Cluster Aware AIX automation with repository replacement mechanism SRIOV-backed VNIC, or dedicated VNIC virtualized network adapter support RDSv3 over RoCE adds support of the Oracle RDSv3 protocol over the Mellanox Connect RoCE adapters Supports secure boot on POWER9 systems. Requires POWER7 or newer CPUs AIX V7.1, September 10, 2010 Support for 256 cores / 1024 threads in a single LPAR The ability to run AIX V5.2 or V5.3 inside of a Workload Partition An XML profile based system configuration management utility Support for export of Fibre Channel adapters to WPARs VIOS disk support in a WPAR Cluster Aware AIX AIX Event infrastructure Role-based access control (RBAC) with domain support for multi-tenant environments Requires POWER4 or newer CPUs AIX V6.1, November 9, 2007 Workload Partitions (WPARs) operating system-level virtualization Live Application Mobility Live Partition Mobility Security Role Based Access Control RBAC AIX Security Expert a system and network security hardening tool Encrypting JFS2 filesystem Trusted AIX Trusted Execution Integrated Electronic Service Agent for auto error reporting Concurrent Kernel Maintenance Kernel exploitation of POWER6 storage keys ProbeVue dynamic tracing Systems Director Console for AIX Integrated filesystem snapshot Requires POWER4 or newer CPUs AIX 6 withdrawn from Marketing effective April 2016 and from Support effective April 2017 AIX 5L 5.3, August 13, 2004, end of support April 30, 2012 NFS Version 4 Advanced Accounting Virtual SCSI Virtual Ethernet Exploitation of Simultaneous multithreading (SMT) Micro-Partitioning enablement POWER5 exploitation JFS2 quotas Ability to shrink a JFS2 filesystem Kernel scheduler has been enhanced to dynamically increase and decrease the use of virtual processors. AIX 5L 5.2, October 18, 2002, end of support April 30, 2009 Ability to run on the IBM BladeCenter JS20 with the PowerPC 970 Minimum level required for POWER5 hardware MPIO for Fibre Channel disks iSCSI Initiator software Participation in Dynamic LPAR Concurrent I/O (CIO) feature introduced for JFS2 released in Maintenance Level 01 in May 2003 AIX 5L 5.1, May 4, 2001, end of support April 1, 2006 Ability to run on an IA-64 architecture processor, although this never went beyond beta. Minimum level required for POWER4 hardware and the last release that worked on the Micro Channel architecture 64-bit kernel, installed but not activated by default JFS2 Ability to run in a Logical Partition on POWER4 The L stands for Linux affinity Trusted Computing Base (TCB) Support for mirroring with striping AIX 4.3.3, September 17, 1999 Online backup function Workload Manager (WLM) Introduction of topas utility AIX 4.3.2, October 23, 1998 AIX 4.3.1, April 24, 1998 First TCSEC security evaluation, completed December 18, 1998 AIX 4.3, October 31, 1997 Ability to run on 64-bit architecture CPUs IPv6 Web-based System Manager AIX 4.2.1, April 25, 1997 NFS Version 3 Y2K-compliant AIX 4.2, May 17, 1996 AIX 4.1.5, November 8, 1996 AIX 4.1.4, October 20, 1995 AIX 4.1.3, July 7, 1995 CDE 1.0 became the default GUI environment, replacing the AIXwindows Desktop. AIX 4.1.1, October 28, 1994 AIX 4.1, August 12, 1994 AIX Ultimedia Services introduced (multimedia drivers and applications) AIX 4.0, 1994 Run on RS/6000 systems with PowerPC processors and PCI busses. AIX 3.2.5, October 15, 1993 AIX 3.2 1992 AIX 3.1, (General Availability) February 1990 Journaled File System (JFS) filesystem type AIXwindows Desktop (based on X.desktop from IXI Limited) AIX 3.0 1989 (Early Access) LVM (Logical Volume Manager) was incorporated into OSF/1, and in 1995 for HP-UX, and the Linux LVM implementation is similar to the HP-UX LVM implementation. SMIT was introduced. IBM System/370 releases AIX/370 Version 1 Release 1 Announced March 15, 1988 Available February 16, 1989 Does not run in XA, ESA or z mode AIX/370 Version 1 Release 2.1 Announced February 5, 1991 Available February February 22, 1991 Withdrawn December 31, 1992 Does not run in XA, ESA or z mode AIX/ESA Version 2 Release 1 Announced March 31, 1992 Available June 26, 1992 Withdrawn Jun 19, 1993 Runs only in S/370-ESA mode AIX/ESA Version 2 Release 2 Announced December 15, 1992 Available February 26, 1993 Withdrawn Jun 19, 1993 Runs only in S/370-ESA mode IBM PS/2 releases AIX PS/2 v1.3, October 1992 Withdrawn from sale in US, March 1995 Patches supporting IBM ThinkPad 750C family of notebook computers, 1994 Patches supporting non PS/2 hardware and systems, 1993 AIX PS/2 v1.2.1, May 1991 AIX PS/2 v1.2, March 1990 AIX PS/2 v1.1, March 1989 IBM RT releases AIX RT v2.2.1, March 1991 AIX RT v2.2, March 1990 AIX RT v2.1, March 1989 X-Windows included on installation media AIX RT v1.1, 1986 AIX RT v1.0, 1985 User interfaces The default shell was Bourne shell up to AIX version 3, but was changed to KornShell (ksh88) in version 4 for XPG4 and POSIX compliance. Graphical The Common Desktop Environment (CDE) is AIX's default graphical user interface. As part of Linux Affinity and the free AIX Toolbox for Linux Applications (ATLA), open-source KDE Plasma Workspaces and GNOME desktop are also available. System Management Interface Tool SMIT is the System Management Interface Tool for AIX. It allows a user to navigate a menu hierarchy of commands, rather than using the command line. Invocation is typically achieved with the command smit. Experienced system administrators make use of the F6 function key which generates the command line that SMIT will invoke to complete it. SMIT also generates a log of commands that are performed in the smit.script file. The smit.script file automatically records the commands with the command flags and parameters used. The smit.script file can be used as an executable shell script to rerun system configuration tasks. SMIT also creates the smit.log file, which contains additional detailed information that can be used by programmers in extending the SMIT system. smit and smitty refer to the same program, though smitty invokes the text-based version, while smit will invoke an X Window System based interface if possible; however, if smit determines that X Window System capabilities are not present, it will present the text-based version instead of failing. Determination of X Window System capabilities is typically performed by checking for the existence of the DISPLAY variable. Database Object Data Manager (ODM) is a database of system information integrated into AIX, analogous to the registry in Microsoft Windows. A good understanding of the ODM is essential for managing AIX systems. Data managed in ODM is stored and maintained as objects with associated attributes. Interaction with ODM is possible via application programming interface (API) library for programs, and command-line utilities such as odmshow, odmget, odmadd, odmchange and odmdelete for shell scripts and users. SMIT and its associated AIX commands can also be used to query and modify information in the ODM. ODM is stored on disk using Berkeley DB files. Example of information stored in the ODM database are: Network configuration Logical volume management configuration Installed software information Information for logical devices or software drivers List of all AIX supported devices Physical hardware devices installed and their configuration Menus, screens and commands that SMIT uses See also AOS, IBM's educational-market port of 4.3BSD IBM PowerHA SystemMirror (formerly HACMP) List of Unix systems nmon Operating systems timeline Service Update Management Assistant Vital Product Data (VPD) References External links IBM AIX IBM operating systems Power ISA operating systems PowerPC operating systems IBM Aix Object-oriented database management systems 1986 software

2115

https://en.wikipedia.org/wiki/AppleTalk

AppleTalk

AppleTalk is a discontinued proprietary suite of networking protocols developed by Apple Computer for their Macintosh computers. AppleTalk includes a number of features that allow local area networks to be connected with no prior setup or the need for a centralized router or server of any sort. Connected AppleTalk-equipped systems automatically assign addresses, update the distributed namespace, and configure any required inter-networking routing. AppleTalk was released in 1985 and was the primary protocol used by Apple devices through the 1980s and 1990s. Versions were also released for the IBM PC and compatibles and the Apple IIGS. AppleTalk support was also available in most networked printers (especially laser printers), some file servers, and a number of routers. The rise of TCP/IP during the 1990s led to a reimplementation of most of these types of support on that protocol, and AppleTalk became unsupported as of the release of Mac OS X v10.6 in 2009. Many of AppleTalk's more advanced autoconfiguration features have since been introduced in Bonjour, while Universal Plug and Play serves similar needs. History AppleNet After the release of the Apple Lisa computer in January 1983, Apple invested considerable effort in the development of a local area networking (LAN) system for the machines. Known as AppleNet, it was based on the seminal Xerox XNS protocol stack but running on a custom 1 Mbit/s coaxial cable system rather than Xerox's 2.94 Mbit/s Ethernet. AppleNet was announced early in 1983 with a full introduction at the target price of $500 for plug-in AppleNet cards for the Lisa and the Apple II. At that time, early LAN systems were just coming to market, including Ethernet, Token Ring, Econet, and ARCNET. This was a topic of major commercial effort at the time, dominating shows like the National Computer Conference (NCC) in Anaheim in May 1983. All of the systems were jockeying for position in the market, but even at this time, Ethernet's widespread acceptance suggested it was to become a de facto standard. It was at this show that Steve Jobs asked Gursharan Sidhu a seemingly innocuous question: "Why has networking not caught on?" Four months later, in October, AppleNet was cancelled. At the time, they announced that "Apple realized that it's not in the business to create a networking system. We built and used AppleNet in-house, but we realized that if we had shipped it, we would have seen new standards coming up." In January, Jobs announced that they would instead be supporting IBM's Token Ring, which he expected to come out in a "few months". AppleBus Through this period, Apple was deep in development of the Macintosh computer. During development, engineers had made the decision to use the Zilog 8530 serial controller chip (SCC) instead of the lower-cost and more common UART to provide serial port connections. The SCC cost about $5 more than a UART, but offered much higher speeds of up to 250 kilobits per second (or higher with additional hardware) and internally supported a number of basic networking-like protocols like IBM's Bisync. The SCC was chosen because it would allow multiple devices to be attached to the port. Peripherals equipped with similar SCCs could communicate using the built-in protocols, interleaving their data with other peripherals on the same bus. This would eliminate the need for more ports on the back of the machine, and allowed for the elimination of expansion slots for supporting more complex devices. The initial concept was known as AppleBus, envisioning a system controlled by the host Macintosh polling "dumb" devices in a fashion similar to the modern Universal Serial Bus. AppleBus networking The Macintosh team had already begun work on what would become the LaserWriter and had considered a number of other options to answer the question of how to share these expensive machines and other resources. A series of memos from Bob Belleville clarified these concepts, outlining the Mac, LaserWriter, and a file server system which would become the Macintosh Office. By late 1983 it was clear that IBM's Token Ring would not be ready in time for the launch of the Mac, and might miss the launch of these other products as well. In the end, Token Ring would not ship until October 1985. Jobs' earlier question to Sidhu had already sparked a number of ideas. When AppleNet was cancelled in October, Sidhu led an effort to develop a new networking system based on the AppleBus hardware. This new system would not have to conform to any existing preconceptions, and was designed to be worthy of the Mac – a system that was user-installable, had zero configuration, and no fixed network addresses – in short, a true plug-and-play network. Considerable effort was needed, but by the time the Mac was released, the basic concepts had been outlined, and some of the low-level protocols were on their way to completion. Sidhu mentioned the work to Belleville only two hours after the Mac was announced. The "new" AppleBus was announced in early 1984, allowing direct connection from the Mac or Lisa through a small box that is plugged into the serial port and connected via cables to the next computer upstream and downstream. Adaptors for Apple II and Apple III were also announced. Apple also announced that AppleBus networks could be attached to, and would appear to be a single node within, a Token Ring system. Details of how this would work were sketchy. AppleTalk Personal Network Just prior to its release in early 1985, AppleBus was renamed AppleTalk. Initially marketed as AppleTalk Personal Network, it comprised a family of network protocols and a physical layer. The physical layer had a number of limitations, including a speed of only 230.4 kbit/s, a maximum distance of from end to end, and only 32 nodes per LAN. But as the basic hardware was built into the Mac, adding nodes only cost about $50 for the adaptor box. In comparison, Ethernet or Token Ring cards cost hundreds or thousands of dollars. Additionally, the entire networking stack required only about 6 kB of RAM, allowing it to run on any Mac. The relatively slow speed of AppleTalk allowed further reductions in cost. Instead of using RS-422's balanced transmit and receive circuits, the AppleTalk cabling used a single common electrical ground, which limited speeds to about 500 kbit/s, but allowed one conductor to be removed. This meant that common three-conductor cables could be used for wiring. Additionally, the adaptors were designed to be "self-terminating", meaning that nodes at the end of the network could simply leave their last connector unconnected. There was no need for the wires to be connected back together into a loop, nor the need for hubs or other devices. The system was designed for future expansion; the addressing system allowed for expansion to 255 nodes in a LAN (although only 32 could be used at that time), and by using "bridges" (which came to be known as "routers", although technically not the same) one could interconnect LANs into larger collections. "Zones" allowed devices to be addressed within a bridge-connected internet. Additionally, AppleTalk was designed from the start to allow use with any potential underlying physical link, and within a few years, the physical layer would be renamed LocalTalk, so as to differentiate it from the AppleTalk protocols. The main advantage of AppleTalk was that it was completely maintenance-free. To join a device to a network, a user simply plugged the adaptor into the machine, then connected a cable from it to any free port on any other adaptor. The AppleTalk network stack negotiated a network address, assigned the computer a human-readable name, and compiled a list of the names and types of other machines on the network so the user could browse the devices through the Chooser. AppleTalk was so easy to use that ad hoc networks tended to appear whenever multiple Macs were in the same room. Apple would later use this in an advertisement showing a network being created between two seats in an airplane. PhoneNet and other adaptors A thriving 3rd party market for AppleTalk devices developed over the next few years. One particularly notable example was an alternate adaptor designed by BMUG and commercialized by Farallon as PhoneNET in 1987. This was essentially a replacement for Apple's connector that had conventional phone jacks instead of Apple's round connectors. PhoneNet allowed AppleTalk networks to be connected together using normal telephone wires, and with very little extra work, could run analog phones and AppleTalk on a single four-conductor phone cable. Other companies took advantage of the SCC's ability to read external clocks in order to support higher transmission speeds, up to 1 Mbit/s. In these systems, the external adaptor also included its own clock, and used that to signal the SCC's clock input pins. The best-known such system was Centram's FlashTalk, which ran at 768 kbit/s, and was intended to be used with their TOPS networking system. A similar solution was the 850 kbit/s DaynaTalk, which used a separate box that plugged in between the computer and a normal LocalTalk/PhoneNet box. Dayna also offered a PC expansion card that ran up to 1.7 Mbit/s when talking to other Dayna PC cards. Several other systems also existed with even higher performance, but these often required special cabling that was incompatible with LocalTalk/PhoneNet, and also required patches to the networking stack that often caused problems. AppleTalk over Ethernet As Apple expanded into more commercial and education markets, they needed to integrate AppleTalk into existing network installations. Many of these organizations had already invested in a very expensive Ethernet infrastructure and there was no direct way to connect a Macintosh to Ethernet. AppleTalk included a protocol structure for interconnecting AppleTalk subnets and so as a solution, EtherTalk was initially created to use the Ethernet as a backbone between LocalTalk subnets. To accomplish this, organizations would need to purchase a LocalTalk-to-Ethernet bridge and Apple left it to third parties to produce these products. A number of companies responded, including Hayes and a few newly formed companies like Kinetics. LocalTalk, EtherTalk, TokenTalk, and AppleShare By 1987, Ethernet was clearly winning the standards battle over Token Ring, and in the middle of that year, Apple introduced EtherTalk 1.0, an implementation of the AppleTalk protocol over the Ethernet physical layer. Introduced for the newly released Macintosh II computer, Apple's first Macintosh with expansion slots, the operating system included a new Network control panel that allowed the user to select which physical connection to use for networking (from "Built-in" or "EtherTalk"). At introduction, Ethernet interface cards were available from 3Com and Kinetics that plugged into a Nubus slot in the machine. The new networking stack also expanded the system to allow a full 255 nodes per LAN. With EtherTalk's release, AppleTalk Personal Network was renamed LocalTalk, the name it would be known under for the bulk of its life. Token Ring would later be supported with a similar TokenTalk product, which used the same Network control panel and underlying software. Over time, many third-party companies would introduce compatible Ethernet and Token Ring cards that used these same drivers. The appearance of a Macintosh with a direct Ethernet connection also magnified the Ethernet and LocalTalk compatibility problem: Networks with new and old Macs needed some way to communicate with each other. This could be as simple as a network of Ethernet Mac II's trying to talk to a LaserWriter that only connected to LocalTalk. Apple initially relied on the aforementioned LocalTalk-to-Ethernet bridge products, but contrary to Apple's belief that these would be low-volume products, by the end of 1987, 130,000 such networks were in use. AppleTalk was at that time the most used networking system in the world, with over three times the installations of any other vendor. 1987 also marked the introduction of the AppleShare product, a dedicated file server that ran on any Mac with 512 kB of RAM or more. A common AppleShare machine was the Mac Plus with an external SCSI hard drive. AppleShare was the #3 network operating system in the late 1980s, behind Novell NetWare and Microsoft's MS-Net. AppleShare was effectively the replacement for the failed Macintosh Office efforts, which had been based on a dedicated file server device. AppleTalk Phase II and other developments A significant re-design was released in 1989 as AppleTalk Phase II. In many ways, Phase II can be considered an effort to make the earlier version (never called Phase I) more generic. LANs could now support more than 255 nodes, and zones were no longer associated with physical networks but were entirely virtual constructs used simply to organize nodes. For instance, one could now make a "Printers" zone that would list all the printers in an organization, or one might want to place that same device in the "2nd Floor" zone to indicate its physical location. Phase II also included changes to the underlying inter-networking protocols to make them less "chatty", which had previously been a serious problem on networks that bridged over wide-area networks. By this point, Apple had a wide variety of communications products under development, and many of these were announced along with AppleTalk Phase II. These included updates to EtherTalk and TokenTalk, AppleTalk software and LocalTalk hardware for the IBM PC, EtherTalk for Apple's A/UX operating system allowing it to use LaserPrinters and other network resources, and the Mac X.25 and MacX products. Ethernet had become almost universal by 1990, and it was time to build Ethernet into Macs direct from the factory. However, the physical wiring used by these networks was not yet completely standardized. Apple solved this problem using a single port on the back of the computer into which the user could plug an adaptor for any given cabling system. This FriendlyNet system was based on the industry-standard Attachment Unit Interface or AUI, but deliberately chose a non-standard connector that was smaller and easier to use, which they called "Apple AUI", or AAUI. FriendlyNet was first introduced on the Quadra 700 and Quadra 900 computers, and used across much of the Mac line for some time. As with LocalTalk, a number of 3rd party FriendlyNet adaptors quickly appeared. As 10BASE-T became the de facto cabling system for Ethernet, second-generation Power Macintosh machines added a 10BASE-T port in addition to AAUI. The PowerBook 3400c and lower-end Power Macs also added 10BASE-T. The Power Macintosh 7300/8600/9600 were the final Macs to include AAUI, and 10BASE-T became universal starting with the Power Macintosh G3 and PowerBook G3. The capital-I Internet From the beginning of AppleTalk, users wanted to connect the Macintosh to the TCP/IP network environments. In 1984, Bill Croft at Stanford University pioneered the development of IP packets encapsulated in DDP as part of the SEAGATE (Stanford Ethernet–AppleTalk Gateway) project. SEAGATE was commercialized by Kinetics in their LocalTalk-to-Ethernet bridge as an additional routing option. A few years later, MacIP, was separated from the SEAGATE code and became the de facto method for IP packets to be routed over LocalTalk networks. By 1986, Columbia University released the first version of the Columbia AppleTalk Package (CAP) that allowed higher integration of Unix, TCP/IP, and AppleTalk environments. In 1988, Apple released MacTCP, a system that allowed the Mac to support TCP/IP on machines with suitable Ethernet hardware. However, this left many universities with the problem of supporting IP on their many LocalTalk-equipped Macs. It was soon common to include MacIP support in LocalTalk-to-Ethernet bridges. MacTCP would not become a standard part of the Classic Mac OS until 1994, by which time it also supported SNMP and PPP. For some time in the early 1990s, the Mac was a primary client on the rapidly expanding Internet. Among the better-known programs in wide use were Fetch, Eudora, eXodus, NewsWatcher, and the NCSA packages, especially NCSA Mosaic and its offspring, Netscape Navigator. Additionally, a number of server products appeared that allowed the Mac to host Internet content. Through this period, Macs had about 2 to 3 times as many clients connected to the Internet as any other platform, despite the relatively small overall microcomputer market share. As the world quickly moved to IP for both LAN and WAN uses, Apple was faced with maintaining two increasingly outdated code bases on an ever-wider group of machines as well as the introduction of the PowerPC based machines. This led to the Open Transport efforts, which re-implemented both MacTCP and AppleTalk on an entirely new code base adapted from the Unix standard STREAMS. Early versions had problems and did not become stable for some time. By that point, Apple was deep in their ultimately doomed Copland efforts. Legacy and abandonment With the purchase of NeXT and subsequent development of Mac OS X, AppleTalk was strictly a legacy system. Support was added to OS X in order to provide support for a large number of existing AppleTalk devices, notably laser printers and file shares, but alternate connection solutions common in this era, notably USB for printers, limited their demand. As Apple abandoned many of these product categories, and all new systems were based on IP, AppleTalk became less and less common. AppleTalk support was finally removed from the MacOS in Mac OS X v10.6 in 2009. However, the loss of AppleTalk did not reduce the desire for networking solutions that combined its ease of use with IP routing. Apple has led the development of many such efforts, from the introduction of the AirPort router to the development of the Zero-configuration networking system and their implementation of it, Bonjour. As of 2020, AppleTalk support has been completely removed from legacy support with macOS 11 Big Sur. Design The AppleTalk design rigorously followed the OSI model of protocol layering. Unlike most of the early LAN systems, AppleTalk was not built using the archetypal Xerox XNS system. The intended target was not Ethernet, and it did not have 48-bit addresses to route. Nevertheless, many portions of the AppleTalk system have direct analogs in XNS. One key differentiation for AppleTalk was it contained two protocols aimed at making the system completely self-configuring. The AppleTalk address resolution protocol (AARP) allowed AppleTalk hosts to automatically generate their own network addresses, and the Name Binding Protocol (NBP) was a dynamic system for mapping network addresses to user-readable names. Although systems similar to AARP existed in other systems, Banyan VINES for instance. Beginning about 2002 Multicast DNS provided capabilities similar to NBP. Both AARP and NBP had defined ways to allow "controller" devices to override the default mechanisms. The concept was to allow routers to provide the information or "hardwire" the system to known addresses and names. On larger networks where AARP could cause problems as new nodes searched for free addresses, the addition of a router could reduce "chattiness." Together AARP and NBP made AppleTalk an easy-to-use networking system. New machines were added to the network by plugging them in and optionally giving them a name. The NBP lists were examined and displayed by a program known as the Chooser which would display a list of machines on the local network, divided into classes such as file-servers and printers. Addressing An AppleTalk address was a four-byte quantity. This consisted of a two-byte network number, a one-byte node number, and a one-byte socket number. Of these, only the network number required any configuration, being obtained from a router. Each node dynamically chose its own node number, according to a protocol (originally the LocalTalk Link Access Protocol LLAP and later, for Ethernet/EtherTalk, the AppleTalk Address Resolution Protocol, AARP) which handled contention between different nodes accidentally choosing the same number. For socket numbers, a few well-known numbers were reserved for special purposes specific to the AppleTalk protocol itself. Apart from these, all application-level protocols were expected to use dynamically-assigned socket numbers at both the client and server end. Because of this dynamism, users could not be expected to access services by specifying their address. Instead, all services had names which, being chosen by humans, could be expected to be meaningful to users, and also could be sufficiently long to minimize the chance of conflicts. As NBP names translated to an address, which included a socket number as well as a node number, a name in AppleTalk mapped directly to a service being provided by a machine, which was entirely separate from the name of the machine itself. Thus, services could be moved to a different machine and, so long as they kept the same service name, there was no need for users to do anything different in order to continue accessing the service. And the same machine could host any number of instances of services of the same type, without any network connection conflicts. Contrast this with A records in the DNS, in which a name translates to a machine's address, not including the port number that might be providing a service. Thus, if people are accustomed to using a particular machine name to access a particular service, their access will break when the service is moved to a different machine. This can be mitigated somewhat by insistence on using CNAME records indicating service rather than actual machine names to refer to the service, but there is no way of guaranteeing that users will follow such a convention. Some newer protocols, such as Kerberos and Active Directory use DNS SRV records to identify services by name, which is much closer to the AppleTalk model. Protocols AppleTalk Address Resolution Protocol AARP resolves AppleTalk addresses to link layer addresses. It is functionally equivalent to ARP and obtains address resolution by a method very similar to ARP. AARP is a fairly simple system. When powered on, an AppleTalk machine broadcasts an AARP probe packet asking for a network address, intending to hear back from controllers such as routers. If no address is provided, one is picked at random from the "base subnet", 0. It then broadcasts another packet saying "I am selecting this address", and then waits to see if anyone else on the network complains. If another machine has that address, it will pick another address, and keep trying until it finds a free one. On a network with many machines it may take several tries before a free address is found, so for performance purposes the successful address is "written down" in NVRAM and used as the default address in the future. This means that in most real-world setups where machines are added a few at a time, only one or two tries are needed before the address effectively become constant. AppleTalk Data Stream Protocol This was a comparatively late addition to the AppleTalk protocol suite, done when it became clear that a TCP-style reliable connection-oriented transport was needed. Significant differences from TCP were that: a connection attempt could be rejected there were no "half-open" connections; once one end initiated a tear-down of the connection, the whole connection would be closed (i.e., ADSP is full-duplex, not dual simplex). AppleTalk had an included attention message system which allowed short messages to be sent which would bypass the normal stream data flow. These were delivered reliably but out of order with respect to the stream. Any attention message would be delivered as soon as possible instead of waiting for the current stream byte sequence point to become current. Apple Filing Protocol The Apple Filing Protocol (AFP), formerly AppleTalk Filing Protocol, is the protocol for communicating with AppleShare file servers. Built on top of AppleTalk Session Protocol (for legacy AFP over DDP) or the Data Stream Interface (for AFP over TCP), it provides services for authenticating users (extensible to different authentication methods including two-way random-number exchange) and for performing operations specific to the Macintosh HFS filesystem. AFP is still in use in macOS, even though most other AppleTalk protocols have been deprecated. AppleTalk Session Protocol ASP was an intermediate protocol, built on top of ATP, which in turn was the foundation of AFP. It provided basic services for requesting responses to arbitrary commands d performing out-of-band status queries. It also allowed the server to send asynchronous attention messages to the client. Datagram Delivery Protocol DDP was the lowest-level data-link-independent transport protocol. It provided a datagram service with no guarantees of delivery. All application-level protocols, including the infrastructure protocols NBP, RTMP and ZIP, were built on top of DDP. AppleTalk's DDP corresponds closely to the Network layer of the Open Systems Interconnection (OSI) communication model. Name Binding Protocol Name Binding Protocol was a dynamic, distributed system for managing AppleTalk names. When a service started up on a machine, it registered a name for itself as chosen by a human administrator. At this point, NBP provided a system for checking that no other machine had already registered the same name. Later, when a client wanted to access that service, it used NBP to query machines to find that service. NBP provided browsability ("what are the names of all the services available?") as well as the ability to find a service with a particular name. Names were human readable, containing spaces, upper and lower case letters, and including support for searching. AppleTalk Echo Protocol AEP (AppleTalk Echo Protocol) is a transport layer protocol designed to test the reachability of network nodes. AEP generates packets to be sent to the network node and is identified in the Type field of a packet as an AEP packet. The packet is first passed to the source DDP. After it is identified as an AEP packet, it is forwarded to the node where the packet is examined by the DDP at the destination. After the packet is identified as an AEP packet, the packet is then copied and a field in the packet is altered to create an AEP reply packet, and is then returned to the source node. Printer Access Protocol PAP was the standard way of communicating with PostScript printers. It was built on top of ATP. When a PAP connection was opened, each end sent the other an ATP request which basically meant "send me more data". The client's response to the server was to send a block of PostScript code, while the server could respond with any diagnostic messages that might be generated as a result, after which another "send-more-data" request was sent. This use of ATP provided automatic flow control; each end could only send data to the other end if there was an outstanding ATP request to respond to. PAP also provided for out-of-band status queries, handled by separate ATP transactions. Even while it was busy servicing a print job from one client, a PAP server could continue to respond to status requests from any number of other clients. This allowed other Macintoshes on the LAN that were waiting to print to display status messages indicating that the printer was busy, and what the job was that it was busy with. Routing Table Maintenance Protocol RTMP was the protocol by which routers kept each other informed about the topology of the network. This was the only part of AppleTalk that required periodic unsolicited broadcasts: every 10 seconds, each router had to send out a list of all the network numbers it knew about and how far away it thought they were. Zone Information Protocol ZIP was the protocol by which AppleTalk network numbers were associated with zone names. A zone was a subdivision of the network that made sense to humans (for example, "Accounting Department"); but while a network number had to be assigned to a topologically-contiguous section of the network, a zone could include several different discontiguous portions of the network. Physical implementation The initial default hardware implementation for AppleTalk was a high-speed serial protocol known as LocalTalk that used the Macintosh's built-in RS-422 ports at 230.4 kbit/s. LocalTalk used a splitter box in the RS-422 port to provide an upstream and downstream cable from a single port. The topology was a bus: cables were daisy-chained from each connected machine to the next, up to the maximum of 32 permitted on any LocalTalk segment. The system was slow by today's standards, but at the time the additional cost and complexity of networking on PC machines was such that it was common that Macs were the only networked personal computers in an office. Other larger computers, such as UNIX or VAX workstations, would commonly be networked via Ethernet. Other physical implementations were also available. A very popular replacement for LocalTalk was PhoneNET, a 3rd party solution from Farallon Computing, Inc. (renamed Netopia, acquired by Motorola in 2007) that also used the RS-422 port and was indistinguishable from LocalTalk as far as Apple's LocalTalk port drivers were concerned, but ran over the two unused wires in standard four-wire phone cabling. Foreshadowing today's network hubs and switches, Farallon provided solutions for PhoneNet to be used in "star" as well as bus configurations, with both "passive" star connections (with the phone wires simply bridged to each other at a central point), and "active" star with "PhoneNet Star Controller" hub hardware. Apple's LocalTalk connectors didn't have a locking feature, so connectors could easily come loose, and the bus configuration resulted in any loose connector bringing down the whole network, and being hard to track down. PhoneNet RJ-11 connectors, on the other hand, snapped into place, and in a star configuration any wiring issue only affected one device, and problems were easy to pinpoint. PhoneNet's low cost, flexibility, and easy troubleshooting resulted in it being the dominant choice for Mac networks into the early 1990s. AppleTalk protocols also came to run over Ethernet (first coaxial and then twisted pair) and Token Ring physical layers, labeled by Apple as EtherTalk and TokenTalk, respectively. EtherTalk gradually became the dominant implementation method for AppleTalk as Ethernet became generally popular in the PC industry throughout the 1990s. Besides AppleTalk and TCP/IP, any Ethernet network could also simultaneously carry other protocols such as DECnet and IPX. Networking model Versions Cross-platform solutions When AppleTalk was first introduced, the dominant office computing platform was the PC compatible running MS-DOS. Apple introduced the AppleTalk PC Card in early 1987, allowing PCs to join AppleTalk networks and print to LaserWriter printers. A year later AppleShare PC was released, allowing PCs to access AppleShare file servers. The "TOPS Teleconnector" MS-DOS networking system over AppleTalk system enabled MS-DOS PCs to communicate over AppleTalk network hardware; it comprised an AppleTalk interface card for the PC and a suite of networking software allowing such functions as file, drive and printer sharing. As well as allowing the construction of a PC-only AppleTalk network, it allowed communication between PCs and Macs with TOPS software installed. (Macs without TOPS installed could use the same network but only to communicate with other Apple machines.) The Mac TOPS software did not match the quality of Apple's own either in ease of use or in robustness and freedom from crashes, but the DOS software was relatively simple to use in DOS terms, and was robust. The BSD and Linux operating systems support AppleTalk through an open source project called Netatalk, which implements the complete protocol suite and allows them to both act as native file or print servers for Macintosh computers, and print to LocalTalk printers over the network. The Windows Server operating systems supported AppleTalk starting with Windows NT and ending after Windows Server 2003. Miramar included AppleTalk in its PC MacLAN product which was discontinued by CA in 2007. GroupLogic continues to bundle its AppleTalk protocol with its ExtremeZ-IP server software for Macintosh-Windows integration which supports Windows Server 2008 and Windows Vista as well prior versions. HELIOS Software GmbH offers a proprietary implementation of the AppleTalk protocol stack, as part of their HELIOS UB2 server. This is essentially a File and Print Server suite that runs on a whole range of different platforms. In addition, Columbia University released the Columbia AppleTalk Package (CAP) which implemented the protocol suite for various Unix flavors including Ultrix, SunOS, BSD and IRIX. This package is no longer actively maintained. See also Netatalk is a free, open-source implementation of the AppleTalk suite of protocols. Network File System Remote File Sharing Samba Server Message Block Notes References Citations Bibliography Apple Inc. software Network operating systems Network protocols

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https://en.wikipedia.org/wiki/Apple%20II%20series

Apple II series

The Apple II series (trademarked with square brackets as "Apple ][" and rendered on later models as "Apple //") is a family of home computers, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer (now Apple Inc.), and launched in 1977 with the original Apple II. In terms of ease of use, features, and expandability, the Apple II was a major advancement over its predecessor, the Apple I, a limited-production bare circuit board computer for electronics hobbyists. Through 1988, a number of models were introduced, with the most popular, the Apple IIe, remaining relatively unchanged into the 1990s. A model with more advanced graphics and sound and a 16-bit processor, the Apple IIGS, was added in 1986. It remained compatible with earlier Apple II models, but the IIGS had more in common with mid-1980s systems like the Atari ST, Amiga, and Acorn Archimedes. The Apple II was first sold on June 10, 1977. By the end of production in 1993, somewhere between five and six million Apple II series computers (including about 1.25 million Apple IIGS models) had been produced. The Apple II was one of the longest running mass-produced home computer series, with models in production for just under 17 years. The Apple II became one of several recognizable and successful computers during the 1980s and early 1990s, although this was mainly limited to the US. It was aggressively marketed through volume discounts and manufacturing arrangements to educational institutions, which made it the first computer in widespread use in American secondary schools, displacing the early leader Commodore PET. The effort to develop educational and business software for the Apple II, including the 1979 release of the popular VisiCalc spreadsheet, made the computer especially popular with business users and families. Despite the introduction of the Motorola 68000-based Macintosh in 1984, the Apple II series still reportedly accounted for 85% of the company's hardware sales in the first quarter of fiscal 1985. Apple continued to sell Apple II systems alongside the Macintosh until terminating the IIGS in December 1992 and the IIe in November 1993. The last II-series Apple in production, the IIe card for Macintoshes, was discontinued on October 15, 1993. The total Apple II sales of all of its models during its 16-year production run were about 6 million units, with the peak occurring in 1983 when 1 million were sold. Hardware All the machines in the series, except the //c, shared similar overall design elements. The plastic case was designed to look more like a home appliance than a piece of electronic equipment, and the machine could be opened without the use of tools, allowing access to the computer's internals. The motherboard held eight expansion slots and an array of random access memory (RAM) sockets that could hold up to 48 kilobytes. Over the course of the Apple II series' life, an enormous amount of first- and third-party hardware was made available to extend the capabilities of the machine. The //c was designed as a compact, portable unit, not intended to be disassembled, and could not use most of the expansion hardware sold for the other machines in the series. All machines in the Apple II series had a built-in keyboard, with the exception of the IIgs which had a separate keyboard. Apple IIs had color and high-resolution graphics modes, sound capabilities and a built-in BASIC programming language. The Apple II was targeted for the masses rather than just hobbyists and engineers, and influenced many of the microcomputers that followed it. Unlike preceding home microcomputers, it was sold as a finished consumer appliance rather than as a kit (unassembled or preassembled). The Apple II series eventually supported over 1,500 software programs. Apple marketed the machine as a durable product, including a 1981 ad in which an Apple II survived a fire started when a cat belonging to one early user knocked over a lamp. Software The original Apple II provided an operating system in ROM along with a BASIC variant called Integer BASIC. The only form of storage available was cassette tape. When the Disk II floppy disk drive was released in 1978, a new operating system, Apple DOS, was commissioned from Shepardson Microsystems and developed by Paul Laughton, adding support for the disk drive. The final and most popular version of this software was Apple DOS 3.3. Apple DOS was superseded by ProDOS, which supported a hierarchical filesystem and larger storage devices. With an optional third-party Z80-based expansion card, the Apple II could boot into the CP/M operating system and run WordStar, dBase II, and other CP/M software. With the release of MousePaint in 1984 and the Apple IIGS in 1986, the platform took on the look of the Macintosh user interface, including a mouse. Apple eventually released Applesoft BASIC, a more advanced variant of the language which users could run instead of Integer BASIC for more capabilities. Some commercial Apple II software booted directly and did not use standard DOS disk formats. This discouraged the copying or modifying of the software on the disks, and improved loading speed. Models Apple II The first Apple II computers went on sale on June 10, 1977 with a MOS Technology 6502 (later Synertek) microprocessor running at 1.023 MHz, 4 KB of RAM, an audio cassette interface for loading programs and storing data, and the Integer BASIC programming language built into the ROMs. The video controller displayed 40 columns by 24 lines of monochrome, upper-case-only (the original character set matches ASCII characters 0x20 to 0x5F) text on the screen, with NTSC composite video output suitable for display on a TV monitor, or on a regular TV set by way of a separate RF modulator. The original retail price of the computer was US$1298(with 4 KB of RAM) and US$2638 (with the maximum 48 KB of RAM). To reflect the computer's color graphics capability, the Apple logo on the casing was represented using rainbow stripes, which remained a part of Apple's corporate logo until early 1998. The earliest Apple IIs were assembled in Silicon Valley, and later in Texas; printed circuit boards were manufactured in Ireland and Singapore. An external -inch floppy disk drive, the Disk II, attached via a controller card that plugged into one of the computer's expansion slots (usually slot 6), was used for data storage and retrieval to replace cassettes. The Disk II interface, created by Steve Wozniak, was regarded as an engineering masterpiece for its economy of electronic components. Rather than having a dedicated sound-synthesis chip, the Apple II had a toggle circuit that could only emit a click through a built-in speaker or a line out jack; all other sounds (including two, three and, eventually, four-voice music and playback of audio samples and speech synthesis) were generated entirely by software that clicked the speaker at just the right times. The Apple II's multiple expansion slots permitted a wide variety of third-party devices, including Apple II peripheral cards such as serial controllers, display controllers, memory boards, hard disks, networking components, and realtime clocks. There were plug-in expansion cards – such as the Z-80 SoftCard – that permitted the Apple to use the Z80 processor and run a multitude of programs developed under the CP/M operating system, including the dBase II database and the WordStar word processor. There was also a third-party 6809 card that would allow OS-9 Level One to be run. Third-party sound cards greatly improved audio capabilities, allowing simple music synthesis and text-to-speech functions. Eventually, Apple II accelerator cards were created to double or quadruple the computer's speed. Rod Holt designed the Apple II's power supply. He employed a switched-mode power supply design, which was far smaller and generated less unwanted heat than the linear power supply some other home computers used. The original Apple II was discontinued at the start of 1981, having been superseded by the Apple II+. By 1984, over six million machines had been sold. Apple II Plus The Apple II Plus, introduced in June 1979, included the Applesoft BASIC programming language in ROM. This Microsoft-authored dialect of BASIC, which was previously available as an upgrade, supported floating-point arithmetic, and became the standard BASIC dialect on the Apple II series (though it ran at a noticeably slower speed than Steve Wozniak's Integer BASIC). Except for improved graphics and disk-booting support in the ROM, and the removal of the 2k 6502 assembler/disassembler to make room for the floating point BASIC, the II+ was otherwise identical to the original II. RAM prices fell during 1980–81 and all II+ machines came from the factory with a full 48k of memory already installed. Apple II Europlus and J-Plus After the success of the first Apple II in the United States, Apple expanded its market to include Europe, Australia and the Far East in 1979, with the Apple II Europlus (Europe, Australia) and the Apple II J-Plus (Japan). In these models, Apple made the necessary hardware, software and firmware changes in order to comply to standards outside of the US. Apple IIe The Apple II Plus was followed in 1983 by the Apple IIe, a cost-reduced yet more powerful machine that used newer chips to reduce the component count and add new features, such as the display of upper and lowercase letters and a standard 64 KB of RAM. The IIe RAM was configured as if it were a 48 KB Apple II Plus with a language card. The machine had no slot 0, but instead had an auxiliary slot that could accept a 1 KB memory card to enable the 80-column display. This card contained only RAM; the hardware and firmware for the 80-column display was built into the Apple IIe. An "extended 80-column card" with more memory increased the machine's RAM to 128 KB. The Apple IIe was the most popular machine in the Apple II series. It has the distinction of being the longest-lived Apple computer of all time—it was manufactured and sold with only minor changes for nearly 11 years. The IIe was the last Apple II model to be sold, and was discontinued in November 1993. During its lifespan two variations were introduced: the Apple IIe Enhanced (four replacement chips to give it some of the features of the later model Apple IIc) and the Apple IIe Platinum (a modernized case color to match other Apple products of the era, along with the addition of a numeric keypad). Some of the feature of the IIe were carried over from the less successful Apple III, among them the ProDOS operating system. Apple IIc The Apple IIc was released in April 1984, billed as a portable Apple II because it could be easily carried due to its size and carrying handle, which could be flipped down to prop the machine up into a typing position. Unlike modern portables it lacked a built-in display and battery. It was the first of three Apple II models to be made in the Snow White design language, and the only one that used its unique creamy off-white color. The Apple IIc was the first Apple II to use the 65C02 low-power variant of the 6502 processor, and featured a built-in 5.25-inch floppy drive and 128 KB RAM, with a built-in disk controller that could control external drives, composite video (NTSC or PAL), serial interfaces for modem and printer, and a port usable by either a joystick or mouse. Unlike previous Apple II models, the IIc had no internal expansion slots at all. Two different monochrome LC displays were sold for use with the IIc's video expansion port, although both were short-lived due to high cost and poor legibility. The IIc had an external power supply that converted AC power to 15 V DC, though the IIc itself will accept between 12 V and 17 V DC, allowing third parties to offer battery packs and automobile power adapters that connected in place of the supplied AC adapter. Apple IIGS The Apple IIGS, released on September 15, 1986, is the penultimate and most advanced model in the Apple II series, and a radical departure from prior models. It uses a 16-bit microprocessor, the 65C816 operating at 2.8 MHz with 24-bit addressing, allowing expansion up to 8 MB of RAM. The graphics are significantly improved, with 4096 colors and new modes with resolutions of 320×200 and 640×400. The audio capabilities are vastly improved, with a built-in music synthesizer that far exceeded any other home computer. The Apple IIGS evolved the platform while still maintaining near-complete backward compatibility. Its Mega II chip contains the functional equivalent of an entire Apple IIe computer (sans processor). This, combined with the 65816's ability to execute 65C02 code directly, provides full support for legacy software, while also supporting 16-bit software running under a new OS. The OS eventually included a Macintosh-like graphical Finder for managing disks and files and opening documents and applications, along with desk accessories. Later, the IIGS gained the ability to read and write Macintosh disks and, through third-party software, a multitasking Unix-like shell and TrueType font support. The GS includes a 32-voice Ensoniq 5503 DOC sample-based sound synthesizer chip with 64 KB dedicated RAM, 256 KB (or later 1.125 MB) of standard RAM, built-in peripheral ports (switchable between IIe-style card slots and IIc-style onboard controllers for disk drives, mouse, RGB video, and serial devices) and, built-in AppleTalk networking. Apple IIc Plus The final Apple II model was the Apple IIc Plus introduced in 1988. It was the same size and shape as the IIc that came before it, but the 5.25-inch floppy drive had been replaced with a -inch drive, the power supply was moved inside the case, and the processor was a fast 4 MHz 65C02 processor that actually ran 8-bit Apple II software faster than the IIGS. The IIc Plus also featured a new keyboard layout that matched the Platinum IIe and IIGS. Unlike the IIe IIc and IIGS, the IIc Plus came only in one version (American) and was not officially sold anywhere outside the US. The Apple IIc Plus ceased production in 1990, with its two-year production run being the shortest of all the Apple II computers. Apple IIe Card Although not an extension of the Apple II line, in 1990 the Apple IIe Card, an expansion card for the LC line of Macintosh computers, was released. Essentially a miniaturized Apple IIe computer on a card (using the Mega II chip from the Apple IIGS), it allowed the Macintosh to run 8-bit Apple IIe software through hardware emulation (although video was emulated in software and was slower at times than a IIe). Many of the LC's built-in Macintosh peripherals could be "borrowed" by the card when in Apple II mode (i.e. extra RAM, 3.5-inch floppy, AppleTalk networking, hard disk). The IIe card could not, however, run software intended for the 16-bit Apple IIGS. Advertising, marketing, and packaging Mike Markkula, a retired Intel marketing manager, provided the early critical funding for Apple Computer. From 1977 to 1981, Apple used the Regis McKenna agency for its advertisements and marketing. In 1981, Chiat-Day acquired Regis McKenna's advertising operations and Apple used Chiat-Day. At Regis McKenna Advertising, the team assigned to launch the Apple II consisted of Rob Janoff, art director, Chip Schafer, copywriter and Bill Kelley, account executive. Janoff came up with the Apple logo with a bite out of it. The design was originally an olive green with matching company logotype all in lower case. Steve Jobs insisted on promoting the color capability of the Apple II by putting rainbow stripes on the Apple logo. In its letterhead and business card implementation, the rounded "a" of the logotype echoed the "bite" in the logo. This logo was developed simultaneously with an advertisement and a brochure; the latter being produced for distribution initially at the first West Coast Computer Faire. Since the original Apple II, Apple has paid high attention to its quality of packaging, partly because of Steve Jobs' personal preferences and opinions on packaging and final product appearance. All of Apple's packaging for the Apple II series looked similar, featuring much clean white space and showing the Apple rainbow logo prominently. For several years up until the late 1980s, Apple used the Motter Tektura font for packaging, until changing to the Apple Garamond font. Apple ran the first advertisement for the Apple II, a two-page spread ad titled "Introducing Apple II", in BYTE in July 1977. The first brochure, was entitled "Simplicity" and the copy in both the ad and brochure pioneered "demystifying" language intended to make the new idea of a home computer more "personal." The Apple II introduction ad was later run in the September 1977 issue of Scientific American. Apple later aired eight television commercials for the Apple IIGS, emphasizing its benefits to education and students, along with some print ads. Clones The Apple II was frequently cloned, both in the United States and abroad, in a similar way to the IBM PC. According to some sources (see below), more than 190 different models of Apple II clones were manufactured. Most could not be legally imported into the United States. Apple sued and sought criminal charges against clone makers in more than a dozen countries. Data storage Cassette Originally the Apple II used Compact Cassette tapes for program and data storage. A dedicated tape recorder along the lines of the Commodore Datasette was never produced; Apple recommended using the Panasonic RQ309 in some of its early printed documentation. The uses of common consumer cassette recorders and a standard video monitor or television set (with a third party R-F modulator) made the total cost of owning an Apple II less expensive and helped contribute to the Apple II's success. Cassette storage may have been inexpensive, but it was also slow and unreliable. The Apple II's lack of a disk drive was "a glaring weakness" in what was otherwise intended to be a polished, professional product. Recognizing that the II needed a disk drive to be taken seriously, Apple set out to develop a disk drive and a DOS to run it. Wozniak spent the 1977 Christmas holidays designing a disk controller that reduced the number of chips used by a factor of 10 compared to existing controllers. Still lacking a DOS, and with Wozniak inexperienced in operating system design, Jobs approached Shepardson Microsystems with the project. On April 10, 1978, Apple signed a contract for $13,000 with Sheperdson to develop the DOS. Even after disk drives made the cassette tape interfaces obsolete they were still used by enthusiasts as simple one-bit audio input-output ports. Ham radio operators used the cassette input to receive slow scan TV (single frame images). A commercial speech recognition Blackjack program was available, after some user-specific voice training it would recognize simple commands (Hit, stand). Bob Bishop's "Music Kaleidoscope" was a simple program that monitored the cassette input port and based on zero-crossings created color patterns on the screen, a predecessor to current audio visualization plug-ins for media players. Music Kaleidoscope was especially popular on projection TV sets in dance halls. The OS Disk Apple and many third-party developers made software available on tape at first, but after the Disk II became available in 1978, tape-based Apple II software essentially disappeared from the market. The initial price of the Disk II drive and controller was US$595, although a $100 off coupon was available through the Apple newsletter "Contact". The controller could handle two drives and a second drive (without controller) retailed for $495. The Disk II single-sided floppy drive used 5.25-inch floppy disks; double-sided disks could be used, one side at a time, by turning them over and notching a hole for the write protect sensor. The first disk operating systems for the were and DOS 3.2, which stored 113.75 KB on each disk, organized into 35 tracks of 13 256-byte sectors each. After about two years, DOS 3.3 was introduced, storing 140 KB thanks to a minor firmware change on the disk controller that allowed it to store 16 sectors per track. (This upgrade was user-installable as two PROMs on older controllers.) After the release of DOS 3.3, the user community discontinued use of except for running legacy software. Programs that required DOS 3.2 were fairly rare; however, as DOS 3.3 was not a major architectural change aside from the number of sectors per track, a program called MUFFIN was provided with DOS 3.3 to allow users to copy files from DOS 3.2 disks to DOS 3.3 disks. It was possible for software developers to create a DOS 3.2 disk which would also boot on a system with firmware. Later, double-sided drives, with heads to read both sides of the disk, became available from third-party companies. (Apple only produced double-sided 5.25-inch disks for the Lisa 1 computer). On a DOS 3.x disk, tracks 0, 1, and most of track 2 were reserved to store the operating system. (It was possible, with a special utility, to reclaim most of this space for data if a disk did not need to be bootable.) A short ROM program on the disk controller had the ability to seek to track zero which it did without regard for the read/write head's current position, resulting in the characteristic "chattering" sound of a Disk II boot, which was the read/write head hitting the rubber stop block at the end of the rail – and read and execute code from sector 0. The code contained in there would then pull in the rest of the operating system. DOS stored the disk's directory on track 17, smack in the middle of the 35-track disks, in order to reduce the average seek time to the frequently used directory track. The directory was fixed in size and could hold a maximum of 105 files. Subdirectories were not supported. Most game publishers did not include DOS on their floppy disks, since they needed the memory it occupied more than its capabilities; instead, they often wrote their own boot loaders and read-only file systems. This also served to discourage "crackers" from snooping around in the game's copy-protection code, since the data on the disk was not in files that could be accessed easily. Some third-party manufacturers produced floppy drives that could write 40 tracks to most 5.25-inch disks, yielding 160 KB of storage per disk, but the format did not catch on widely, and no known commercial software was published on 40-track media. Most drives, even Disk IIs, could write 36 tracks; a two byte modification to DOS to format the extra track was common. The Apple Disk II stored 140 KB on single-sided, "single-density" floppy disks, but it was very common for Apple II users to extend the capacity of a single-sided floppy disk to 280 KB by cutting out a second write-protect notch on the side of the disk using a "disk notcher" or hole puncher and inserting the disk flipped over. Double-sided disks, with notches on both sides, were available at a higher price, but in practice the magnetic coating on the reverse of nominally single-sided disks was usually of good enough quality to be used (both sides were coated in the same way to prevent warping, although only one side was certified for use). Early on, diskette manufacturers routinely warned that this technique would damage the read/write head of the drives or wear out the disk faster, and these warnings were frequently repeated in magazines of the day. In practice, however, this method was an inexpensive way to store twice as much data for no extra cost, and was widely used for commercially released floppies as well. Later, Apple IIs were able to use 3.5-inch disks with a total capacity of 800 KB and hard disks. did not support these drives natively; third-party software was required, and disks larger than about 400 KB had to be split up into multiple "virtual disk volumes." DOS 3.3 was succeeded by ProDOS, a 1983 descendant of the Apple ///'s SOS. It added support for subdirectories and volumes up to 32 MB in size. ProDOS became the DOS of choice; AppleWorks and other newer programs required it. Legacy Industry impact The Apple II series of computers had an enormous impact on the technology industry and expanded the role of microcomputers in society. The Apple II was the first personal computer many people ever saw. Its price was within the reach of many middle-class families, and a partnership with MECC helped make the Apple II popular in schools. By the end of 1980 Apple had already sold over 100,000 Apple IIs. Its popularity bootstrapped the computer game and educational software markets and began the boom in the word processor and computer printer markets. The first spreadsheet application, VisiCalc, was initially released for the Apple II, and many businesses bought them just to run VisiCalc. Its success drove IBM in part to create the IBM PC, which many businesses purchased to run spreadsheet and word processing software, at first ported from Apple II versions. The Apple II's slots, allowing any peripheral card to take control of the bus and directly access memory, enabled an independent industry of card manufacturers who together created a flood of hardware products that let users build systems that were far more powerful and useful (at a lower cost) than any competing system, most of which were not nearly as expandable and were universally proprietary. The first peripheral card was a blank prototyping card intended for electronics enthusiasts who wanted to design their own peripherals for the Apple II. Specialty peripherals kept the Apple II in use in industry and education environments for many years after Apple Computer stopped supporting the Apple II. Well into the 1990s every clean-room (the super-clean facility where spacecraft are prepared for flight) at the Kennedy Space Center used an Apple II to monitor the environment and air quality. Most planetariums used Apple IIs to control their projectors and other equipment. Even the game port was unusually powerful and could be used for digital and analog input and output. The early manuals included instructions for how to build a circuit with only four commonly available components (one transistor and three resistors) and a software routine to drive a common Teletype Model 33 machine. Don Lancaster used the game I/O to drive a LaserWriter printer. Modern use Today, emulators for various Apple II models are available to run Apple II software on macOS, Linux, Microsoft Windows, homebrew enabled Nintendo DS and other operating systems. Numerous disk images of Apple II software are available free over the Internet for use with these emulators. AppleWin and MESS are among the best emulators compatible with most Apple II images. The MESS emulator supports recording and playing back of Apple II emulation sessions, as does Home Action Replay Page (a.k.a. HARP). In addition, an active retrocomputing community of vintage Apple II collectors and users, continue to restore, maintain and develop hardware and software for daily use of these original computers. There is still a small annual convention, KansasFest, dedicated to the platform. In 2017, the band 8 Bit Weapon released the world's first 100% Apple II based music album entitled, "Class Apples." The album featured dance-oriented cover versions of classical music by Bach, Beethoven, and Mozart recorded directly off the Apple II motherboard. See also Apple Industrial Design Group List of publications and periodicals devoted to the Apple II Apple II peripheral cards Apple II graphics List of Apple II application software List of Apple II games List of Apple IIGS games References External links epocalc Apple II clones list "These Pictures Of Apple's First Employees Are Absolutely Wonderful", contains a c.1977 photograph taken inside Apple of early employees Chrisann Brennan, Mark Johnson, and Robert Martinengo standing in front of a stack of Apple IIs that they had tested, assembled, and were about to ship (Business Insider, December 26, 2013). Apple II computers Computer-related introductions in 1977 Products and services discontinued in 1993 Discontinued Apple Inc. products

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https://en.wikipedia.org/wiki/Apple%20III

Apple III

The Apple III (styled as apple ///) is a business-oriented personal computer produced by Apple Computer and released in 1980. Running the Apple SOS operating system, it was intended as the successor to the Apple II series, but was largely considered a failure in the market. It was designed to provide key features business users wanted in a personal computer: a true typewriter-style upper/lowercase keyboard (the Apple II only supported uppercase) and an 80-column display. Work on the Apple III started in late 1978 under the guidance of Dr. Wendell Sander. It had the internal code name of "Sara", named after Sander's daughter. The system was announced on May 19, 1980 and released in late November that year. Serious stability issues required a design overhaul and a recall of the first 14,000 machines produced. The Apple III was formally reintroduced on November 9, 1981. Damage to the computer's reputation had already been done, however, and it failed to do well commercially. Development stopped, and the Apple III was discontinued on April 24, 1984. Its last successor, the III Plus, was dropped from the Apple product line in September 1985. An estimated 65,000–75,000 Apple III computers were sold. The Apple III Plus brought this up to approximately 120,000. Apple co-founder Steve Wozniak stated that the primary reason for the Apple III's failure was that the system was designed by Apple's marketing department, unlike Apple's previous engineering-driven projects. The Apple III's failure led Apple to reevaluate its plan to phase out the Apple II, prompting the eventual continuation of development of the older machine. As a result, later Apple II models incorporated some hardware and software technologies of the Apple III. Overview Design Steve Wozniak and Steve Jobs expected hobbyists to purchase the Apple II, but because of VisiCalc and Disk II, small businesses purchased 90% of the computers. The Apple III was designed to be a business computer and successor. Though the Apple II contributed to the inspirations of several important business products, such as VisiCalc, Multiplan, and Apple Writer, the computer's hardware architecture, operating system, and developer environment are limited. Apple management intended to clearly establish market segmentation by designing the Apple III to appeal to the 90% business market, leaving the Apple II to home and education users. Management believed that "once the Apple III was out, the Apple II would stop selling in six months", Wozniak said. The Apple III is powered by a 1.8-megahertz Synertek 6502A or 6502B 8-bit CPU and, like some of the later machines in the Apple II family, uses bank switching techniques to address memory beyond the 6502's traditional 64 KB limit, up to 256 KB in the III's case. Third-party vendors produced memory upgrade kits that allow the Apple III to reach up to 512 KB of random-access memory (RAM). Other Apple III built-in features include an 80-column, 24-line display with upper and lowercase characters, a numeric keypad, dual-speed (pressure-sensitive) cursor control keys, 6-bit (DAC) audio, and a built-in 140-kilobyte 5.25-inch floppy disk drive. Graphics modes include 560x192 in black and white, and 280x192 with 16 colors or shades of gray. Unlike the Apple II, the Disk III controller is part of the logic board. The Apple III is the first Apple product to allow the user to choose both a screen font and a keyboard layout: either QWERTY or Dvorak. These choices cannot be changed while programs were running, unlike the Apple IIc, which has a keyboard switch directly above the keyboard, allowing the user to switch on the fly. Software The Apple III introduced an advanced operating system called Apple SOS, pronounced "apple sauce". Its ability to address resources by name allows the Apple III to be more scalable than the Apple II's addressing by physical location such as PR#6, CATALOG, D1. Apple SOS allows the full capacity of a storage device to be used as a single volume, such as the Apple ProFile hard disk drive, and it supports a hierarchical file system. Some of the features and code base of Apple SOS were later adopted into the Apple II's ProDOS and GS/OS operating systems, as well as Lisa 7/7 and Macintosh system software. With a starting price between , the Apple III was more expensive than many of the CP/M-based business computers that were available at the time. Few software applications other than VisiCalc are available for the computer; according to a presentation at KansasFest 2012, fewer than 50 Apple III-specific software packages were ever published, most shipping when the III Plus was released. Because Apple did not view the Apple III as suitable for hobbyists, it did not provide much of the technical software information that accompanies the Apple II. Originally intended as a direct replacement to the Apple II series, it was designed to be backward compatible with Apple II software. However, since Apple did not want to encourage continued development of the II platform, Apple II compatibility exists only in a special Apple II Mode which is limited in its capabilities to the emulation of a basic Apple II Plus configuration with of RAM. Special chips were intentionally added to prevent access from Apple II Mode to the III's advanced features such as its larger amount of memory. Peripherals The Apple III has four expansion slots, a number that inCider in 1986 called "miserly". Apple II cards are compatible but risk violating government RFI regulations, and require Apple III-specific device drivers; BYTE stated that "Apple provides virtually no information on how to write them". As with software, Apple provided little hardware technical information with the computer but Apple III-specific products became available, such as one that made the computer compatible with the Apple IIe. Several new Apple-produced peripherals were developed for the Apple III. The original Apple III has a built-in real-time clock, which is recognized by Apple SOS. The clock was later removed from the "revised" model, and was instead made available as an add-on. Along with the built-in floppy drive, the Apple III can also handle up to three additional external Disk III floppy disk drives. The Disk III is only officially compatible with the Apple III. The Apple III Plus requires an adaptor from Apple to use the Disk III with its DB-25 disk port. With the introduction of the revised Apple III a year after launch, Apple began offering the ProFile external hard disk system. Priced at $3,499 for 5 MB of storage, it also required a peripheral slot for its controller card. Backward compatibility The Apple III has the built-in hardware capability to run Apple II software. In order to do so, an emulation boot disk is required that functionally turns the machine into a standard 48-kilobyte Apple II Plus, until it is powered off. The keyboard, internal floppy drive (and one external Disk III), display (color is provided through the 'B/W video' port) and speaker all act as Apple II peripherals. The paddle and serial ports can also function in Apple II mode, however with some limitations and compatibility issues. Apple engineers added specialized circuitry with the sole purpose of blocking access to its advanced features when running in Apple II emulation mode. This was done primarily to discourage further development and interest in the Apple II line, and to push the Apple III as its successor. For example, no more than of RAM can be accessed, even if the machine has of RAM or higher present. Many Apple II programs require a minimum of of RAM, making them impossible to run on the Apple III. Similarly, access to lowercase support, 80 columns text, or its more advanced graphics and sound are blocked by this hardware circuitry, making it impossible for even skilled software programmers to bypass Apple's lockout. A third-party company, Titan Technologies, sold an expansion board called the III Plus II that allows Apple II mode to access more memory, a standard game port, and with a later released companion card, even emulate the Apple IIe. Certain Apple II slot cards can be installed in the Apple III and used in native III-mode with custom written SOS device drivers, including Grappler Plus and Liron 3.5 Controller. Revisions After overheating issues were attributed to serious design flaws, a redesigned logic board was introduced in mid-December 1981 – which included a lower power supply requirement, wider circuit traces and better-designed chip sockets. The $3,495 revised model also includes 256 KB of RAM as the standard configuration. The 14,000 units of the original Apple III sold were returned and replaced with the entirely new revised model. Apple III Plus Apple discontinued the III in October 1983 because it violated FCC regulations, and the FCC required the company to change the redesigned computer's name. It introduced the Apple III Plus in December 1983 at a price of US$2,995. This newer version includes a built-in clock, video interlacing, standardized rear port connectors, 55-watt power supply, 256 KB of RAM as standard, and a redesigned, Apple IIe-like keyboard. Owners of the Apple III could purchase individual III Plus upgrades, like the clock and interlacing feature, and obtain the newer logic board as a service replacement. A keyboard upgrade kit, dubbed "Apple III Plus upgrade kit" was also made available – which included the keyboard, cover, keyboard encoder ROM, and logo replacements. This upgrade had to be installed by an authorized service technician. Design flaws According to Wozniak, the Apple III "had 100 percent hardware failures". Former Apple executive Taylor Pohlman stated that: Jobs insisted on the idea of having no fan or air vents, in order to make the computer run quietly. He would later push this same ideology onto almost all Apple models he had control of, from the Apple Lisa and Macintosh 128K to the iMac. To allow the computer to dissipate heat, the base of the Apple III was made of heavy cast aluminum, which supposedly acts as a heat sink. One advantage to the aluminum case was a reduction in RFI (Radio Frequency Interference), a problem which had plagued the Apple II series throughout its history. Unlike the Apple II series, the power supply was mounted – without its own shell – in a compartment separate from the logic board. The decision to use an aluminum shell ultimately led to engineering issues which resulted in the Apple III's reliability problems. The lead time for manufacturing the shells was high, and this had to be done before the motherboard was finalized. Later, it was realized that there was not enough room on the motherboard for all of the components unless narrow traces were used. Many Apple IIIs were thought to have failed due to their inability to properly dissipate heat. inCider stated in 1986 that "Heat has always been a formidable enemy of the Apple ///", and some users reported that their Apple IIIs became so hot that the chips started dislodging from the board, causing the screen to display garbled data or their disk to come out of the slot "melted". BYTE wrote, "the integrated circuits tended to wander out of their sockets". It has been rumored Apple advised customers to tilt the front of the Apple III six inches above the desk and then drop it to reseat the chips as a temporary solution. Other analyses blame a faulty automatic chip insertion process, not heat. Case designer Jerry Manock denied the design flaw charges, insisting that tests proved that the unit adequately dissipated the internal heat. The primary cause, he claimed, was a major logic board design problem. The logic board used "fineline" technology that was not fully mature at the time, with narrow, closely spaced traces. When chips were "stuffed" into the board and wave-soldered, solder bridges would form between traces that were not supposed to be connected. This caused numerous short circuits, which required hours of costly diagnosis and hand rework to fix. Apple designed a new circuit board with more layers and normal-width traces. The new logic board was laid out by one designer on a huge drafting board, rather than using the costly CAD-CAM system used for the previous board, and the new design worked. Earlier Apple III units came with a built-in real time clock. The hardware, however, would fail after prolonged use. Assuming that National Semiconductor would test all parts before shipping them, Apple did not perform this level of testing. Apple was soldering chips directly to boards and could not easily replace a bad chip if one was found. Eventually, Apple solved this problem by removing the real-time clock from the Apple III's specification rather than shipping the Apple III with the clock pre-installed, and then sold the peripheral as a level 1 technician add-on. BASIC Microsoft and Apple each developed their own versions of BASIC for the Apple III. Apple III Microsoft BASIC was designed to run on the CP/M platform available for the Apple III. Apple Business BASIC shipped with the Apple III. Donn Denman ported Applesoft BASIC to SOS and reworked it to take advantage of the extended memory of the Apple III. Both languages introduced a number of new or improved features over Applesoft BASIC. Both languages replaced Applesoft's single-precision floating-point variables using 5-byte storage with the somewhat-reduced-precision 4-byte variables, while also adding a larger numerical format. Apple III Microsoft BASIC provides double-precision floating-point variables, taking 8 bytes of storage, while Apple Business BASIC offers an extra-long integer type, also taking 8 bytes for storage. Both languages also retain 2-byte integers, and maximum 255-character strings. Other new features common to both languages include: Incorporation of disk-file commands within the language. Operators for MOD and for integer-division. An optional ELSE clause in IF...THEN statements. HEX$() function for hexadecimal-format output. INSTR function for finding a substring within a string. PRINT USING statement to control format of output. Apple Business BASIC had an option, in addition to directly specifying the format with a string expression, of giving the line number where an IMAGE statement gave the formatting expression, similar to a FORMAT statement in FORTRAN. Some features work differently in each language: Microsoft BASIC additional features function to replace Applesoft's command. statement to input an entire line of text, regardless of punctuation, into a single string variable. and statements to automatically direct output to paper. and statements to left- or right-justify a string expression within a given string variable's character length. function for output, and "&"- or "&O"-formatted expressions, for manipulating octal notation. function for generating blank spaces outside of a statement, and function to do likewise with any character. ... statements, for loop structures built on general Boolean conditions without an index variable. Bitwise Boolean (16-bit) operations (, , ), with additional operators , , . Line number specification in the command. options of (to skip to the statement after that which caused the error) or a specified line number (which replaces the idea of exiting error-handling by -line, thus avoiding Applesoft II's stack error problem). Multiple parameters in user-defined () functions. A return to the old Applesoft One concept of having multiple functions at different addresses, by establishing ten different functions, numbered to , with separate statements to define the address of each. The argument passed to a function can be of any specific type, including string. The returned value can also be of any type, by default the same type as the argument passed. There is no support for graphics provided within the language, nor for reading analog controls or buttons; nor is there a means of defining the active window of the text screen. Business BASIC additional features Apple Business BASIC eliminates all references to absolute memory addresses. Thus, the POKE command and PEEK() function were not included in the language, and new features replaced the CALL statement and USR() function. The functionality of certain features in Applesoft that had been achieved with various PEEK and POKE locations is now provided by: BUTTON() function to read game-controller buttons WINDOW statement to define the active window of the text screen by its coordinates KBD, HPOS, and VPOS system variables External binary subroutines and functions are loaded into memory by a single INVOKE disk-command that loads separately-assembled code modules. A PERFORM statement is then used to call an INVOKEd procedure by name, with an argument-list. INVOKEd functions would be referenced in expressions by EXFN. (floating-point) or EXFN%. (integer), with the function name appended, plus the argument-list for the function. Graphics are supported with an INVOKEd module, with features including displaying text within graphics in various fonts, within four different graphics modes available on the Apple III. Reception Despite devoting the majority of its R&D to the Apple III and so ignoring the II that for a while dealers had difficulty in obtaining the latter, the III's technical problems made marketing the computer difficult. Ed Smith, who after designing the APF Imagination Machine worked as a distributor's representative, described the III as "a complete disaster". He recalled that he "was responsible for going to every dealership, setting up the Apple III in their showroom, and then explaining to them the functions of the Apple III, which in many cases didn't really work". Sales Pohlman reported that Apple was only selling 500 units a month by late 1981, mostly as replacements. The company was able to eventually raise monthly sales to 5,000, but the IBM PC's successful launch had encouraged software companies to develop for it instead, prompting Apple to shift focus to the Lisa and Macintosh. The PC almost ended sales of the Apple III, the most closely comparable Apple computer model. By early 1984, sales were primarily to existing III owners, Apple itself—its 4,500 employees were equipped with some 3,000-4,500 units—and some small businesses. Apple finally discontinued the Apple III series on April 24, 1984, four months after introducing the III Plus, after selling only 65,000-75,000 units and replacing 14,000 defective units. Jobs said that the company lost "infinite, incalculable amounts" of money on the Apple III. Wozniak estimated that Apple had spent $100 million on the III, instead of improving the II and better competing against IBM. Pohlman claimed that there was a "stigma" at Apple associated with having contributed to the computer. Most employees who worked on the III reportedly left Apple. Legacy The file system and some design ideas from Apple SOS, the Apple III's operating system, were part of Apple ProDOS and Apple GS/OS, the major operating systems for the Apple II series following the demise of the Apple III, as well as the Apple Lisa, which was the de facto business-oriented successor to the Apple III. The hierarchical file system influenced the evolution of the Macintosh: while the original Macintosh File System (MFS) was a flat file system designed for a floppy disk without subdirectories, subsequent file systems were hierarchical. By comparison, the IBM PC's first file system (again designed for floppy disks) was also flat and later versions (designed for hard disks) were hierarchical. In popular culture At the start of the Walt Disney Pictures film TRON, lead character Kevin Flynn (played by Jeff Bridges) is seen hacking into the ENCOM mainframe using an Apple III. References Sources External links The Ill-Fated Apple III Many manuals and diagrams Sara – Apple /// emulator The Ill-Fated Apple III Low End Mac Apple III Chaos: Apple's First Failure Low End Mac Apple II family Computer-related introductions in 1980 Products and services discontinued in 1984 Discontinued Apple Inc. products 8-bit computers

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https://en.wikipedia.org/wiki/AVL%20tree

AVL tree

In computer science, an AVL tree (named after inventors Adelson-Velsky and Landis) is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any time they differ by more than one, rebalancing is done to restore this property. Lookup, insertion, and deletion all take time in both the average and worst cases, where is the number of nodes in the tree prior to the operation. Insertions and deletions may require the tree to be rebalanced by one or more tree rotations. The AVL tree is named after its two Soviet inventors, Georgy Adelson-Velsky and Evgenii Landis, who published it in their 1962 paper "An algorithm for the organization of information". It is the oldest self-balancing binary search tree data structure to be invented. AVL trees are often compared with red–black trees because both support the same set of operations and take time for the basic operations. For lookup-intensive applications, AVL trees are faster than red–black trees because they are more strictly balanced. Similar to red–black trees, AVL trees are height-balanced. Both are, in general, neither weight-balanced nor -balanced for any ; that is, sibling nodes can have hugely differing numbers of descendants. Definition Balance factor In a binary tree the balance factor of a node X is defined to be the height difference of its two child sub-trees rooted by node X. A binary tree is defined to be an AVL tree if the invariant holds for every node X in the tree. A node X with is called "left-heavy", one with is called "right-heavy", and one with is sometimes simply called "balanced". Properties Balance factors can be kept up-to-date by knowing the previous balance factors and the change in height – it is not necessary to know the absolute height. For holding the AVL balance information, two bits per node are sufficient. The height (counted as the maximal number of levels) of an AVL tree with nodes lies in the interval: where   is the golden ratio and This is because an AVL tree of height contains at least nodes where is the Fibonacci sequence with the seed values Operations Read-only operations of an AVL tree involve carrying out the same actions as would be carried out on an unbalanced binary search tree, but modifications have to observe and restore the height balance of the sub-trees. Searching Searching for a specific key in an AVL tree can be done the same way as that of any balanced or unbalanced binary search tree. In order for search to work effectively it has to employ a comparison function which establishes a total order (or at least a total preorder) on the set of keys. The number of comparisons required for successful search is limited by the height and for unsuccessful search is very close to , so both are in . Traversal As a read-only operation the traversal of an AVL tree functions the same way as on any other binary tree. Exploring all nodes of the tree visits each link exactly twice: one downward visit to enter the subtree rooted by that node, another visit upward to leave that node's subtree after having explored it. Once a node has been found in an AVL tree, the next or previous node can be accessed in amortized constant time. Some instances of exploring these "nearby" nodes require traversing up to links (particularly when navigating from the rightmost leaf of the root's left subtree to the root or from the root to the leftmost leaf of the root's right subtree; in the AVL tree of figure 1, navigating from node P to the next-to-the-right node Q takes 3 steps). Since there are links in any tree, the amortized cost is , or approximately 2. Insert When inserting a node into an AVL tree, you initially follow the same process as inserting into a Binary Search Tree. If the tree is empty, then the node is inserted as the root of the tree. If the tree is not empty, then we go down the root, and recursively go down the tree searching for the location to insert the new node. This traversal is guided by the comparison function. In this case, the node always replaces a NULL reference (left or right) of an external node in the tree i.e., the node is either made a left-child or a right-child of the external node. After this insertion, if a tree becomes unbalanced, only ancestors of the newly inserted node are unbalanced. This is because only those nodes have their sub-trees altered. So it is necessary to check each of the node's ancestors for consistency with the invariants of AVL trees: this is called "retracing". This is achieved by considering the balance factor of each node. Since with a single insertion the height of an AVL subtree cannot increase by more than one, the temporary balance factor of a node after an insertion will be in the range For each node checked, if the temporary balance factor remains in the range from –1 to +1 then only an update of the balance factor and no rotation is necessary. However, if the temporary balance factor is ±2, the subtree rooted at this node is AVL unbalanced, and a rotation is needed. With insertion as the code below shows, the adequate rotation immediately perfectly rebalances the tree. In figure 1, by inserting the new node Z as a child of node X the height of that subtree Z increases from 0 to 1. Invariant of the retracing loop for an insertion The height of the subtree rooted by Z has increased by 1. It is already in AVL shape. for (X = parent(Z); X != null; X = parent(Z)) { // Loop (possibly up to the root) // BF(X) has to be updated: if (Z == right_child(X)) { // The right subtree increases if (BF(X) > 0) { // X is right-heavy // ==> the temporary BF(X) == +2 // ==> rebalancing is required. G = parent(X); // Save parent of X around rotations if (BF(Z) < 0) // Right Left Case (see figure 3) N = rotate_RightLeft(X, Z); // Double rotation: Right(Z) then Left(X) else // Right Right Case (see figure 2) N = rotate_Left(X, Z); // Single rotation Left(X) // After rotation adapt parent link } else { if (BF(X) < 0) { BF(X) = 0; // Z’s height increase is absorbed at X. break; // Leave the loop } BF(X) = +1; Z = X; // Height(Z) increases by 1 continue; } } else { // Z == left_child(X): the left subtree increases if (BF(X) < 0) { // X is left-heavy // ==> the temporary BF(X) == -2 // ==> rebalancing is required. G = parent(X); // Save parent of X around rotations if (BF(Z) > 0) // Left Right Case N = rotate_LeftRight(X, Z); // Double rotation: Left(Z) then Right(X) else // Left Left Case N = rotate_Right(X, Z); // Single rotation Right(X) // After rotation adapt parent link } else { if (BF(X) > 0) { BF(X) = 0; // Z’s height increase is absorbed at X. break; // Leave the loop } BF(X) = -1; Z = X; // Height(Z) increases by 1 continue; } } // After a rotation adapt parent link: // N is the new root of the rotated subtree // Height does not change: Height(N) == old Height(X) parent(N) = G; if (G != null) { if (X == left_child(G)) left_child(G) = N; else right_child(G) = N; } else tree->root = N; // N is the new root of the total tree break; // There is no fall thru, only break; or continue; } // Unless loop is left via break, the height of the total tree increases by 1. In order to update the balance factors of all nodes, first observe that all nodes requiring correction lie from child to parent along the path of the inserted leaf. If the above procedure is applied to nodes along this path, starting from the leaf, then every node in the tree will again have a balance factor of −1, 0, or 1. The retracing can stop if the balance factor becomes 0 implying that the height of that subtree remains unchanged. If the balance factor becomes ±1 then the height of the subtree increases by one and the retracing needs to continue. If the balance factor temporarily becomes ±2, this has to be repaired by an appropriate rotation after which the subtree has the same height as before (and its root the balance factor 0). The time required is for lookup, plus a maximum of retracing levels ( on average) on the way back to the root, so the operation can be completed in time. Delete The preliminary steps for deleting a node are described in section Binary search tree#Deletion. There, the effective deletion of the subject node or the replacement node decreases the height of the corresponding child tree either from 1 to 0 or from 2 to 1, if that node had a child. Starting at this subtree, it is necessary to check each of the ancestors for consistency with the invariants of AVL trees. This is called "retracing". Since with a single deletion the height of an AVL subtree cannot decrease by more than one, the temporary balance factor of a node will be in the range from −2 to +2. If the balance factor remains in the range from −1 to +1 it can be adjusted in accord with the AVL rules. If it becomes ±2 then the subtree is unbalanced and needs to be rotated. (Unlike insertion where a rotation always balances the tree, after delete, there may be BF(Z) ≠ 0 (see figures 2 and 3), so that after the appropriate single or double rotation the height of the rebalanced subtree decreases by one meaning that the tree has to be rebalanced again on the next higher level.) The various cases of rotations are described in section Rebalancing. Invariant of the retracing loop for a deletion The height of the subtree rooted by N has decreased by 1. It is already in AVL shape. for (X = parent(N); X != null; X = G) { // Loop (possibly up to the root) G = parent(X); // Save parent of X around rotations // BF(X) has not yet been updated! if (N == left_child(X)) { // the left subtree decreases if (BF(X) > 0) { // X is right-heavy // ==> the temporary BF(X) == +2 // ==> rebalancing is required. Z = right_child(X); // Sibling of N (higher by 2) b = BF(Z); if (b < 0) // Right Left Case (see figure 3) N = rotate_RightLeft(X, Z); // Double rotation: Right(Z) then Left(X) else // Right Right Case (see figure 2) N = rotate_Left(X, Z); // Single rotation Left(X) // After rotation adapt parent link } else { if (BF(X) == 0) { BF(X) = +1; // N’s height decrease is absorbed at X. break; // Leave the loop } N = X; BF(N) = 0; // Height(N) decreases by 1 continue; } } else { // (N == right_child(X)): The right subtree decreases if (BF(X) < 0) { // X is left-heavy // ==> the temporary BF(X) == -2 // ==> rebalancing is required. Z = left_child(X); // Sibling of N (higher by 2) b = BF(Z); if (b > 0) // Left Right Case N = rotate_LeftRight(X, Z); // Double rotation: Left(Z) then Right(X) else // Left Left Case N = rotate_Right(X, Z); // Single rotation Right(X) // After rotation adapt parent link } else { if (BF(X) == 0) { BF(X) = -1; // N’s height decrease is absorbed at X. break; // Leave the loop } N = X; BF(N) = 0; // Height(N) decreases by 1 continue; } } // After a rotation adapt parent link: // N is the new root of the rotated subtree parent(N) = G; if (G != null) { if (X == left_child(G)) left_child(G) = N; else right_child(G) = N; } else tree->root = N; // N is the new root of the total tree if (b == 0) break; // Height does not change: Leave the loop // Height(N) decreases by 1 (== old Height(X)-1) } // If (b != 0) the height of the total tree decreases by 1. The retracing can stop if the balance factor becomes ±1 (it must have been 0) meaning that the height of that subtree remains unchanged. If the balance factor becomes 0 (it must have been ±1) then the height of the subtree decreases by one and the retracing needs to continue. If the balance factor temporarily becomes ±2, this has to be repaired by an appropriate rotation. It depends on the balance factor of the sibling Z (the higher child tree in figure 2) whether the height of the subtree decreases by one –and the retracing needs to continue– or does not change (if Z has the balance factor 0) and the whole tree is in AVL-shape. The time required is for lookup, plus a maximum of retracing levels ( on average) on the way back to the root, so the operation can be completed in time. Set operations and bulk operations In addition to the single-element insert, delete and lookup operations, several set operations have been defined on AVL trees: union, intersection and set difference. Then fast bulk operations on insertions or deletions can be implemented based on these set functions. These set operations rely on two helper operations, Split and Join. With the new operations, the implementation of AVL trees can be more efficient and highly-parallelizable. The function Join on two AVL trees and and a key will return a tree containing all elements in , as well as . It requires to be greater than all keys in and smaller than all keys in . If the two trees differ by height at most one, Join simply create a new node with left subtree , root and right subtree . Otherwise, suppose that is higher than for more than one (the other case is symmetric). Join follows the right spine of until a node which is balanced with . At this point a new node with left child , root and right child is created to replace c. The new node satisfies the AVL invariant, and its height is one greater than . The increase in height can increase the height of its ancestors, possibly invalidating the AVL invariant of those nodes. This can be fixed either with a double rotation if invalid at the parent or a single left rotation if invalid higher in the tree, in both cases restoring the height for any further ancestor nodes. Join will therefore require at most two rotations. The cost of this function is the difference of the heights between the two input trees. function JoinRightAVL(TL, k, TR) (l, k', c) = expose(TL) if (Height(c) <= Height(TR)+1) T' = Node(c, k, TR) if (Height(T') <= Height(l)+1) then return Node(l, k', T') else return rotateLeft(Node(l, k', rotateRight(T'))) else T' = JoinRightAVL(c, k, TR) T'' = Node(l, k', T') if (Height(T') <= Height(l)+1) return T'' else return rotateLeft(T'') function JoinLeftAVL(TL, k, TR) /* symmetric to JoinRightAVL */ function Join(TL, k, TR) if (Height(TL)>Height(TR)+1) return JoinRightAVL(TL, k, TR) if (Height(TR)>Height(TL)+1) return JoinLeftAVL(TL, k, TR) return Node(TL, k, TR) Here Height(v) is the height of a subtree (node) . (l,k,r) = expose(v) extracts 's left child , the key of 's root, and the right child . Node(l,k,r) means to create a node of left child , key , and right child . To split an AVL tree into two smaller trees, those smaller than key , and those larger than key , first draw a path from the root by inserting into the AVL. After this insertion, all values less than will be found on the left of the path, and all values greater than will be found on the right. By applying Join, all the subtrees on the left side are merged bottom-up using keys on the path as intermediate nodes from bottom to top to form the left tree, and the right part is asymmetric. The cost of Split is , order of the height of the tree. function Split(T, k) if (T = nil) return (nil, false, nil) (L,m,R) = expose(T) if (k = m) return (L, true, R) if (k<m) (L',b,R') = Split(L,k) return (L', b, Join(R', m, R)) if (k>m) (L',b,R') = Split(R, k) return (Join(L, m, L'), b, R')) The union of two AVL trees and representing sets and , is an AVL that represents . function Union(t1, t2): if t1 = nil: return t2 if t2 = nil: return t1 (t<, b, t>) = Split(t2, t1.root) return Join(Union(left(t1), t<), t1.root, Union(right(t1), t>)) Here, Split is presumed to return two trees: one holding the keys less its input key, one holding the greater keys. (The algorithm is non-destructive, but an in-place destructive version exists as well.) The algorithm for intersection or difference is similar, but requires the Join2 helper routine that is the same as Join but without the middle key. Based on the new functions for union, intersection or difference, either one key or multiple keys can be inserted to or deleted from the AVL tree. Since Split calls Join but does not deal with the balancing criteria of AVL trees directly, such an implementation is usually called the "join-based" implementation. The complexity of each of union, intersection and difference is for AVL trees of sizes and . More importantly, since the recursive calls to union, intersection or difference are independent of each other, they can be executed in parallel with a parallel depth . When , the join-based implementation has the same computational DAG as single-element insertion and deletion. Rebalancing If during a modifying operation the height difference between two child subtrees changes, this may, as long as it is < 2, be reflected by an adaption of the balance information at the parent. During insert and delete operations a (temporary) height difference of 2 may arise, which means that the parent subtree has to be "rebalanced". The given repair tools are the so-called tree rotations, because they move the keys only "vertically", so that the ("horizontal") in-order sequence of the keys is fully preserved (which is essential for a binary-search tree). Let X be the node that has a (temporary) balance factor of −2 or +2. Its left or right subtree was modified. Let Z be the higher child (see figures 2 and 3). Note that both children are in AVL shape by induction hypothesis. In case of insertion this insertion has happened to one of Z's children in a way that Z's height has increased. In case of deletion this deletion has happened to the sibling t1 of Z in a way so that t1's height being already lower has decreased. (This is the only case where Z's balance factor may also be 0.) There are four possible variants of the violation: And the rebalancing is performed differently: Thereby, the situations are denoted as where C (= child direction) and B (= balance) come from the set } with The balance violation of case is repaired by a simple rotation whereas the case is repaired by a double rotation The cost of a rotation, either simple or double, is constant. Simple rotation Figure 2 shows a Right Right situation. In its upper half, node X has two child trees with a balance factor of +2. Moreover, the inner child t23 of Z (i.e., left child when Z is right child, or right child when Z is left child) is not higher than its sibling t4. This can happen by a height increase of subtree t4 or by a height decrease of subtree t1. In the latter case, also the pale situation where t23 has the same height as t4 may occur. The result of the left rotation is shown in the lower half of the figure. Three links (thick edges in figure 2) and two balance factors are to be updated. As the figure shows, before an insertion, the leaf layer was at level h+1, temporarily at level h+2 and after the rotation again at level h+1. In case of a deletion, the leaf layer was at level h+2, where it is again, when t23 and t4 were of same height. Otherwise the leaf layer reaches level h+1, so that the height of the rotated tree decreases. Code snippet of a simple left rotation node *rotate_Left(node *X, node *Z) { // Z is by 2 higher than its sibling t23 = left_child(Z); // Inner child of Z right_child(X) = t23; if (t23 != null) parent(t23) = X; left_child(Z) = X; parent(X) = Z; // 1st case, BF(Z) == 0, // only happens with deletion, not insertion: if (BF(Z) == 0) { // t23 has been of same height as t4 BF(X) = +1; // t23 now higher BF(Z) = –1; // t4 now lower than X } else { // 2nd case happens with insertion or deletion: BF(X) = 0; BF(Z) = 0; } return Z; // return new root of rotated subtree } Double rotation Figure 3 shows a Right Left situation. In its upper third, node X has two child trees with a balance factor of +2. But unlike figure 2, the inner child Y of Z is higher than its sibling t4. This can happen by the insertion of Y itself or a height increase of one of its subtrees t2 or t3 (with the consequence that they are of different height) or by a height decrease of subtree t1. In the latter case, it may also occur that t2 and t3 are of the same height. The result of the first, the right, rotation is shown in the middle third of the figure. (With respect to the balance factors, this rotation is not of the same kind as the other AVL single rotations, because the height difference between Y and t4 is only 1.) The result of the final left rotation is shown in the lower third of the figure. Five links (thick edges in figure 3) and three balance factors are to be updated. As the figure shows, before an insertion, the leaf layer was at level h+1, temporarily at level h+2 and after the double rotation again at level h+1. In case of a deletion, the leaf layer was at level h+2 and after the double rotation it is at level h+1, so that the height of the rotated tree decreases. Code snippet of a right-left double rotation node *rotate_RightLeft(node *X, node *Z) { // Z is by 2 higher than its sibling Y = left_child(Z); // Inner child of Z // Y is by 1 higher than sibling t3 = right_child(Y); left_child(Z) = t3; if (t3 != null) parent(t3) = Z; right_child(Y) = Z; parent(Z) = Y; t2 = left_child(Y); right_child(X) = t2; if (t2 != null) parent(t2) = X; left_child(Y) = X; parent(X) = Y; // 1st case, BF(Y) == 0, // only happens with deletion, not insertion: if (BF(Y) == 0) { BF(X) = 0; BF(Z) = 0; } else // other cases happen with insertion or deletion: if (BF(Y) > 0) { // t3 was higher BF(X) = –1; // t1 now higher BF(Z) = 0; } else { // t2 was higher BF(X) = 0; BF(Z) = +1; // t4 now higher } BF(Y) = 0; return Y; // return new root of rotated subtree } Comparison to other structures Both AVL trees and red–black (RB) trees are self-balancing binary search trees and they are related mathematically. Indeed, every AVL tree can be colored red–black, but there are RB trees which are not AVL balanced. For maintaining the AVL (or RB) tree's invariants, rotations play an important role. In the worst case, even without rotations, AVL or RB insertions or deletions require inspections and/or updates to AVL balance factors (or RB colors). RB insertions and deletions and AVL insertions require from zero to three tail-recursive rotations and run in amortized time, thus equally constant on average. AVL deletions requiring rotations in the worst case are also on average. RB trees require storing one bit of information (the color) in each node, while AVL trees mostly use two bits for the balance factor, although, when stored at the children, one bit with meaning «lower than sibling» suffices. The bigger difference between the two data structures is their height limit. For a tree of size an AVL tree's height is at most where   the golden ratio,   and  . a RB tree's height is at most  . AVL trees are more rigidly balanced than RB trees with an asymptotic relation AVL/RB ≈0.720 of the maximal heights. For insertions and deletions, Ben Pfaff shows in 79 measurements a relation of AVL/RB between 0.677 and 1.077 with median ≈0.947 and geometric mean ≈0.910. See also WAVL tree Splay tree Scapegoat tree B-tree T-tree List of data structures References Further reading Donald Knuth. The Art of Computer Programming, Volume 3: Sorting and Searching, Third Edition. Addison-Wesley, 1997. . Pages 458–475 of section 6.2.3: Balanced Trees. . External links 1962 in computing Articles with example pseudocode Binary trees Soviet inventions Search trees Amortized data structures

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https://en.wikipedia.org/wiki/Astrology

Astrology

Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that claim to discern information about human affairs and terrestrial events by studying the apparent positions of celestial objects. Different cultures have employed forms of astrology since at least the 2nd millennium BCE, these practices having originated in calendrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications. Most, if not all, cultures have attached importance to what they observed in the sky, and some—such as the Hindus, Chinese, and the Maya—developed elaborate systems for predicting terrestrial events from celestial observations. Western astrology, one of the oldest astrological systems still in use, can trace its roots to 19th–17th century BCE Mesopotamia, from where it spread to Ancient Greece, Rome, the Islamic world, and eventually Central and Western Europe. Contemporary Western astrology is often associated with systems of horoscopes that purport to explain aspects of a person's personality and predict significant events in their lives based on the positions of celestial objects; the majority of professional astrologers rely on such systems. Throughout most of its history, astrology was considered a scholarly tradition and was common in academic circles, often in close relation with astronomy, alchemy, meteorology, and medicine. It was present in political circles and is mentioned in various works of literature, from Dante Alighieri and Geoffrey Chaucer to William Shakespeare, Lope de Vega, and Calderón de la Barca. During the Enlightenment, however, astrology lost its status as an area of legitimate scholarly pursuit. Following the end of the 19th century and the wide-scale adoption of the scientific method, researchers have successfully challenged astrology on both theoretical and experimental grounds, and have shown it to have no scientific validity or explanatory power. Astrology thus lost its academic and theoretical standing in the western world, and common belief in it largely declined, until a continuing resurgence starting in the 1960s. In India, belief in astrology is long-standing, widespread and continuing. Etymology The word astrology comes from the early Latin word astrologia, which derives from the Greek —from ἄστρον astron ("star") and -λογία -logia, ("study of"—"account of the stars"). The word entered the English language via Latin and medieval French, and its use overlapped considerably with that of astronomy (derived from the Latin astronomia). By the 17th century, astronomy became established as the scientific term, with astrology referring to divinations and schemes for predicting human affairs. History Many cultures have attached importance to astronomical events, and the Indians, Chinese, and Maya developed elaborate systems for predicting terrestrial events from celestial observations. A form of astrology was practised in the Old Babylonian period of Mesopotamia, . Vedāṅga Jyotiṣa is one of earliest known Hindu texts on astronomy and astrology (Jyotisha). The text is dated between 1400 BCE to final centuries BCE by various scholars according to astronomical and linguistic evidences. Chinese astrology was elaborated in the Zhou dynasty (1046–256 BCE). Hellenistic astrology after 332 BCE mixed Babylonian astrology with Egyptian Decanic astrology in Alexandria, creating horoscopic astrology. Alexander the Great's conquest of Asia allowed astrology to spread to Ancient Greece and Rome. In Rome, astrology was associated with "Chaldean wisdom". After the conquest of Alexandria in the 7th century, astrology was taken up by Islamic scholars, and Hellenistic texts were translated into Arabic and Persian. In the 12th century, Arabic texts were imported to Europe and translated into Latin. Major astronomers including Tycho Brahe, Johannes Kepler and Galileo practised as court astrologers. Astrological references appear in literature in the works of poets such as Dante Alighieri and Geoffrey Chaucer, and of playwrights such as Christopher Marlowe and William Shakespeare. Throughout most of its history, astrology was considered a scholarly tradition. It was accepted in political and academic contexts, and was connected with other studies, such as astronomy, alchemy, meteorology, and medicine. At the end of the 17th century, new scientific concepts in astronomy and physics (such as heliocentrism and Newtonian mechanics) called astrology into question. Astrology thus lost its academic and theoretical standing, and common belief in astrology has largely declined. Ancient world Astrology, in its broadest sense, is the search for meaning in the sky. Early evidence for humans making conscious attempts to measure, record, and predict seasonal changes by reference to astronomical cycles, appears as markings on bones and cave walls, which show that lunar cycles were being noted as early as 25,000 years ago. This was a first step towards recording the Moon's influence upon tides and rivers, and towards organising a communal calendar. Farmers addressed agricultural needs with increasing knowledge of the constellations that appear in the different seasons—and used the rising of particular star-groups to herald annual floods or seasonal activities. By the 3rd millennium BCE, civilisations had sophisticated awareness of celestial cycles, and may have oriented temples in alignment with heliacal risings of the stars. Scattered evidence suggests that the oldest known astrological references are copies of texts made in the ancient world. The Venus tablet of Ammisaduqa is thought to have been compiled in Babylon around 1700 BCE. A scroll documenting an early use of electional astrology is doubtfully ascribed to the reign of the Sumerian ruler Gudea of Lagash ( – 2124 BCE). This describes how the gods revealed to him in a dream the constellations that would be most favourable for the planned construction of a temple. However, there is controversy about whether these were genuinely recorded at the time or merely ascribed to ancient rulers by posterity. The oldest undisputed evidence of the use of astrology as an integrated system of knowledge is therefore attributed to the records of the first dynasty of Mesopotamia (1950–1651 BCE). This astrology had some parallels with Hellenistic Greek (western) astrology, including the zodiac, a norming point near 9 degrees in Aries, the trine aspect, planetary exaltations, and the dodekatemoria (the twelve divisions of 30 degrees each). The Babylonians viewed celestial events as possible signs rather than as causes of physical events. The system of Chinese astrology was elaborated during the Zhou dynasty (1046–256 BCE) and flourished during the Han dynasty (2nd century BCE to 2nd century CE), during which all the familiar elements of traditional Chinese culture – the Yin-Yang philosophy, theory of the five elements, Heaven and Earth, Confucian morality – were brought together to formalise the philosophical principles of Chinese medicine and divination, astrology, and alchemy. The ancient Arabs that inhabited the Arabian Peninsula before the advent of Islam used to profess a widespread belief in fatalism (ḳadar) alongside a fearful consideration for the sky and the stars, which they held to be ultimately responsible for every phenomena that occurs on Earth and for the destiny of humankind. Accordingly, they shaped their entire lives in accordance with their interpretations of astral configurations and phenomena. Ancient objections The Hellenistic schools of philosophical skepticism criticized the rationality of astrology. Criticism of astrology by academic skeptics such as Cicero, Carneades, and Favorinus; and Pyrrhonists such as Sextus Empiricus has been preserved. Carneades argued that belief in fate denies free will and morality; that people born at different times can all die in the same accident or battle; and that contrary to uniform influences from the stars, tribes and cultures are all different. Cicero stated the twins objection (that with close birth times, personal outcomes can be very different), later developed by Augustine. He argued that since the other planets are much more distant from the Earth than the Moon, they could have only very tiny influence compared to the Moon's. He also argued that if astrology explains everything about a person's fate, then it wrongly ignores the visible effect of inherited ability and parenting, changes in health worked by medicine, or the effects of the weather on people. Favorinus argued that it was absurd to imagine that stars and planets would affect human bodies in the same way as they affect the tides, and equally absurd that small motions in the heavens cause large changes in people's fates. Sextus Empiricus argued that it was absurd to link human attributes with myths about the signs of the zodiac, and wrote an entire book, Against the Astrologers (Πρὸς ἀστρολόγους, Pros astrologous), compiling arguments against astrology. Against the Astrologers was the fifth section of a larger work arguing against philosophical and scientific inquiry in general, Against the Professors (Πρὸς μαθηματικούς, Pros mathematikous). Plotinus, a neoplatonist, argued that since the fixed stars are much more distant than the planets, it is laughable to imagine the planets' effect on human affairs should depend on their position with respect to the zodiac. He also argues that the interpretation of the Moon's conjunction with a planet as good when the moon is full, but bad when the moon is waning, is clearly wrong, as from the Moon's point of view, half of its surface is always in sunlight; and from the planet's point of view, waning should be better, as then the planet sees some light from the Moon, but when the Moon is full to us, it is dark, and therefore bad, on the side facing the planet in question. Hellenistic Egypt In 525 BCE, Egypt was conquered by the Persians. The 1st century BCE Egyptian Dendera Zodiac shares two signs – the Balance and the Scorpion – with Mesopotamian astrology. With the occupation by Alexander the Great in 332 BCE, Egypt became Hellenistic. The city of Alexandria was founded by Alexander after the conquest, becoming the place where Babylonian astrology was mixed with Egyptian Decanic astrology to create Horoscopic astrology. This contained the Babylonian zodiac with its system of planetary exaltations, the triplicities of the signs and the importance of eclipses. It used the Egyptian concept of dividing the zodiac into thirty-six decans of ten degrees each, with an emphasis on the rising decan, and the Greek system of planetary Gods, sign rulership and four elements. 2nd century BCE texts predict positions of planets in zodiac signs at the time of the rising of certain decans, particularly Sothis. The astrologer and astronomer Ptolemy lived in Alexandria. Ptolemy's work the Tetrabiblos formed the basis of Western astrology, and, "...enjoyed almost the authority of a Bible among the astrological writers of a thousand years or more." Greece and Rome The conquest of Asia by Alexander the Great exposed the Greeks to ideas from Syria, Babylon, Persia and central Asia. Around 280 BCE, Berossus, a priest of Bel from Babylon, moved to the Greek island of Kos, teaching astrology and Babylonian culture. By the 1st century BCE, there were two varieties of astrology, one using horoscopes to describe the past, present and future; the other, theurgic, emphasising the soul's ascent to the stars. Greek influence played a crucial role in the transmission of astrological theory to Rome. The first definite reference to astrology in Rome comes from the orator Cato, who in 160 BCE warned farm overseers against consulting with Chaldeans, who were described as Babylonian 'star-gazers'. Among both Greeks and Romans, Babylonia (also known as Chaldea) became so identified with astrology that 'Chaldean wisdom' became synonymous with divination using planets and stars. The 2nd-century Roman poet and satirist Juvenal complains about the pervasive influence of Chaldeans, saying, "Still more trusted are the Chaldaeans; every word uttered by the astrologer they will believe has come from Hammon's fountain." One of the first astrologers to bring Hermetic astrology to Rome was Thrasyllus, astrologer to the emperor Tiberius, the first emperor to have had a court astrologer, though his predecessor Augustus had used astrology to help legitimise his Imperial rights. Medieval world Hindu The main texts upon which classical Indian astrology is based are early medieval compilations, notably the , and Sārāvalī by . The Horāshastra is a composite work of 71 chapters, of which the first part (chapters 1–51) dates to the 7th to early 8th centuries and the second part (chapters 52–71) to the later 8th century. The Sārāvalī likewise dates to around 800 CE. English translations of these texts were published by N.N. Krishna Rau and V.B. Choudhari in 1963 and 1961, respectively. Islamic Astrology was taken up by Islamic scholars following the collapse of Alexandria to the Arabs in the 7th century, and the founding of the Abbasid empire in the 8th. The second Abbasid caliph, Al Mansur (754–775) founded the city of Baghdad to act as a centre of learning, and included in its design a library-translation centre known as Bayt al-Hikma 'House of Wisdom', which continued to receive development from his heirs and was to provide a major impetus for Arabic-Persian translations of Hellenistic astrological texts. The early translators included Mashallah, who helped to elect the time for the foundation of Baghdad, and Sahl ibn Bishr, (a.k.a. Zael), whose texts were directly influential upon later European astrologers such as Guido Bonatti in the 13th century, and William Lilly in the 17th century. Knowledge of Arabic texts started to become imported into Europe during the Latin translations of the 12th century. Europe In the seventh century, Isidore of Seville argued in his Etymologiae that astronomy described the movements of the heavens, while astrology had two parts: one was scientific, describing the movements of the Sun, the Moon and the stars, while the other, making predictions, was theologically erroneous. The first astrological book published in Europe was the Liber Planetis et Mundi Climatibus ("Book of the Planets and Regions of the World"), which appeared between 1010 and 1027 AD, and may have been authored by Gerbert of Aurillac. Ptolemy's second century AD Tetrabiblos was translated into Latin by Plato of Tivoli in 1138. The Dominican theologian Thomas Aquinas followed Aristotle in proposing that the stars ruled the imperfect 'sublunary' body, while attempting to reconcile astrology with Christianity by stating that God ruled the soul. The thirteenth century mathematician Campanus of Novara is said to have devised a system of astrological houses that divides the prime vertical into 'houses' of equal 30° arcs, though the system was used earlier in the East. The thirteenth century astronomer Guido Bonatti wrote a textbook, the Liber Astronomicus, a copy of which King Henry VII of England owned at the end of the fifteenth century. In Paradiso, the final part of the Divine Comedy, the Italian poet Dante Alighieri referred "in countless details" to the astrological planets, though he adapted traditional astrology to suit his Christian viewpoint, for example using astrological thinking in his prophecies of the reform of Christendom. John Gower in the fourteenth century defined astrology as essentially limited to the making of predictions. The influence of the stars was in turn divided into natural astrology, with for example effects on tides and the growth of plants, and judicial astrology, with supposedly predictable effects on people. The fourteenth-century sceptic Nicole Oresme however included astronomy as a part of astrology in his Livre de divinacions. Oresme argued that current approaches to prediction of events such as plagues, wars, and weather were inappropriate, but that such prediction was a valid field of inquiry. However, he attacked the use of astrology to choose the timing of actions (so-called interrogation and election) as wholly false, and rejected the determination of human action by the stars on grounds of free will. The friar Laurens Pignon (c. 1368–1449) similarly rejected all forms of divination and determinism, including by the stars, in his 1411 Contre les Devineurs. This was in opposition to the tradition carried by the Arab astronomer Albumasar (787-886) whose Introductorium in Astronomiam and De Magnis Coniunctionibus argued the view that both individual actions and larger scale history are determined by the stars. In the late 15th century, Giovanni Pico della Mirandola forcefully attacked astrology in Disputationes contra Astrologos, arguing that the heavens neither caused, nor heralded earthly events. His contemporary, Pietro Pomponazzi, a "rationalistic and critical thinker", was much more sanguine about astrology and critical of Pico's attack. Renaissance and Early Modern Renaissance scholars commonly practised astrology. Gerolamo Cardano cast the horoscope of king Edward VI of England, while John Dee was the personal astrologer to queen Elizabeth I of England. Catherine de Medici paid Michael Nostradamus in 1566 to verify the prediction of the death of her husband, king Henry II of France made by her astrologer Lucus Gauricus. Major astronomers who practised as court astrologers included Tycho Brahe in the royal court of Denmark, Johannes Kepler to the Habsburgs, Galileo Galilei to the Medici, and Giordano Bruno who was burnt at the stake for heresy in Rome in 1600. The distinction between astrology and astronomy was not entirely clear. Advances in astronomy were often motivated by the desire to improve the accuracy of astrology. Kepler, for example, was driven by a belief in harmonies between Earthly and celestial affairs, yet he disparaged the activities of most astrologers as "evil-smelling dung". Ephemerides with complex astrological calculations, and almanacs interpreting celestial events for use in medicine and for choosing times to plant crops, were popular in Elizabethan England. In 1597, the English mathematician and physician Thomas Hood made a set of paper instruments that used revolving overlays to help students work out relationships between fixed stars or constellations, the midheaven, and the twelve astrological houses. Hood's instruments also illustrated, for pedagogical purposes, the supposed relationships between the signs of the zodiac, the planets, and the parts of the human body adherents believed were governed by the planets and signs. While Hood's presentation was innovative, his astrological information was largely standard and was taken from Gerard Mercator's astrological disc made in 1551, or a source used by Mercator. Despite its popularity, Renaissance astrology had what historian Gabor Almasi calls "elite debate", exemplified by the polemical letters of Swiss physician Thomas Erastus who fought against astrology, calling it "vanity" and "superstition." Then around the time of the new star of 1572 and the comet of 1577 there began what Almasi calls an "extended epistemological reform" which began the process of excluding religion, astrology and anthropocentrism from scientific debate. By 1679, the yearly publication La Connoissance des temps eschewed astrology as a legitimate topic.” Enlightenment period and onwards During the Enlightenment, intellectual sympathy for astrology fell away, leaving only a popular following supported by cheap almanacs. One English almanac compiler, Richard Saunders, followed the spirit of the age by printing a derisive Discourse on the Invalidity of Astrology, while in France Pierre Bayle's Dictionnaire of 1697 stated that the subject was puerile. The Anglo-Irish satirist Jonathan Swift ridiculed the Whig political astrologer John Partridge. In the second half of the Seventeenth Century, the Society of Astrologers (1647–1684), a trade, educational, and social organization, sought to unite London's often fractious astrologers in the task of revitalizing Astrology. Following the template of the popular “Feasts of Mathematicians” they endeavored to defend their art in the face of growing religious criticism. The Society hosted banquets, exchanged “instruments and manuscripts”, proposed research projects, and funded the publication of sermons that depicted astrology as a legitimate biblical pursuit for Christians. They commissioned sermons that argued Astrology was divine, Hebraic, and scripturally supported by Bible passages about the Magi and the sons of Seth. According to historian Michelle Pfeffer, “The society's public relations campaign ultimately failed.” Modern historians have mostly neglected the Society of Astrologers in favor of the still extant Royal Society (1660), even though both organizations initially had some of the same members. Astrology saw a popular revival starting in the 19th century, as part of a general revival of spiritualism and—later, New Age philosophy, and through the influence of mass media such as newspaper horoscopes. Early in the 20th century the psychiatrist Carl Jung developed some concepts concerning astrology, which led to the development of psychological astrology. Principles and practice Advocates have defined astrology as a symbolic language, an art form, a science, and a method of divination. Though most cultural astrology systems share common roots in ancient philosophies that influenced each other, many use methods that differ from those in the West. These include Hindu astrology (also known as "Indian astrology" and in modern times referred to as "Vedic astrology") and Chinese astrology, both of which have influenced the world's cultural history. Western Western astrology is a form of divination based on the construction of a horoscope for an exact moment, such as a person's birth. It uses the tropical zodiac, which is aligned to the equinoctial points. Western astrology is founded on the movements and relative positions of celestial bodies such as the Sun, Moon and planets, which are analysed by their movement through signs of the zodiac (twelve spatial divisions of the ecliptic) and by their aspects (based on geometric angles) relative to one another. They are also considered by their placement in houses (twelve spatial divisions of the sky). Astrology's modern representation in western popular media is usually reduced to sun sign astrology, which considers only the zodiac sign of the Sun at an individual's date of birth, and represents only 1/12 of the total chart. The horoscope visually expresses the set of relationships for the time and place of the chosen event. These relationships are between the seven 'planets', signifying tendencies such as war and love; the twelve signs of the zodiac; and the twelve houses. Each planet is in a particular sign and a particular house at the chosen time, when observed from the chosen place, creating two kinds of relationship. A third kind is the aspect of each planet to every other planet, where for example two planets 120° apart (in 'trine') are in a harmonious relationship, but two planets 90° apart ('square') are in a conflicted relationship. Together these relationships and their interpretations are said to form "...the language of the heavens speaking to learned men." Along with tarot divination, astrology is one of the core studies of Western esotericism, and as such has influenced systems of magical belief not only among Western esotericists and Hermeticists, but also belief systems such as Wicca, which have borrowed from or been influenced by the Western esoteric tradition. Tanya Luhrmann has said that "all magicians know something about astrology," and refers to a table of correspondences in Starhawk's The Spiral Dance, organised by planet, as an example of the astrological lore studied by magicians. Hindu The earliest Vedic text on astronomy is the Vedanga Jyotisha; Vedic thought later came to include astrology as well. Hindu natal astrology originated with Hellenistic astrology by the 3rd century BCE, though incorporating the Hindu lunar mansions. The names of the signs (e.g. Greek 'Krios' for Aries, Hindi 'Kriya'), the planets (e.g. Greek 'Helios' for Sun, astrological Hindi 'Heli'), and astrological terms (e.g. Greek 'apoklima' and 'sunaphe' for declination and planetary conjunction, Hindi 'apoklima' and 'sunapha' respectively) in Varaha Mihira's texts are considered conclusive evidence of a Greek origin for Hindu astrology. The Indian techniques may also have been augmented with some of the Babylonian techniques. Chinese and East Asian Chinese astrology has a close relation with Chinese philosophy (theory of the three harmonies: heaven, earth and man) and uses concepts such as yin and yang, the Five phases, the 10 Celestial stems, the 12 Earthly Branches, and shichen (時辰 a form of timekeeping used for religious purposes). The early use of Chinese astrology was mainly confined to political astrology, the observation of unusual phenomena, identification of portents and the selection of auspicious days for events and decisions. The constellations of the Zodiac of western Asia and Europe were not used; instead the sky is divided into Three Enclosures (三垣 sān yuán), and Twenty-Eight Mansions (二十八宿 èrshíbā xiù) in twelve Ci (十二次). The Chinese zodiac of twelve animal signs is said to represent twelve different types of personality. It is based on cycles of years, lunar months, and two-hour periods of the day (the shichen). The zodiac traditionally begins with the sign of the Rat, and the cycle proceeds through 11 other animal signs: the Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig. Complex systems of predicting fate and destiny based on one's birthday, birth season, and birth hours, such as ziping and Zi Wei Dou Shu () are still used regularly in modern-day Chinese astrology. They do not rely on direct observations of the stars. The Korean zodiac is identical to the Chinese one. The Vietnamese zodiac is almost identical to the Chinese, except for second animal being the Water Buffalo instead of the Ox, and the fourth animal the Cat instead of the Rabbit. The Japanese have since 1873 celebrated the beginning of the new year on 1 January as per the Gregorian calendar. The Thai zodiac begins, not at Chinese New Year, but either on the first day of the fifth month in the Thai lunar calendar, or during the Songkran festival (now celebrated every 13–15 April), depending on the purpose of the use. Theological viewpoints Ancient Augustine (354430) believed that the determinism of astrology conflicted with the Christian doctrines of man's free will and responsibility, and God not being the cause of evil, but he also grounded his opposition philosophically, citing the failure of astrology to explain twins who behave differently although conceived at the same moment and born at approximately the same time. Medieval Some of the practices of astrology were contested on theological grounds by medieval Muslim astronomers such as Al-Farabi (Alpharabius), Ibn al-Haytham (Alhazen) and Avicenna. They said that the methods of astrologers conflicted with orthodox religious views of Islamic scholars, by suggesting that the Will of God can be known and predicted. For example, Avicenna's 'Refutation against astrology', Risāla fī ibṭāl aḥkām al-nojūm, argues against the practice of astrology while supporting the principle that planets may act as agents of divine causation. Avicenna considered that the movement of the planets influenced life on earth in a deterministic way, but argued against the possibility of determining the exact influence of the stars. Essentially, Avicenna did not deny the core dogma of astrology, but denied our ability to understand it to the extent that precise and fatalistic predictions could be made from it. Ibn Qayyim al-Jawziyya (1292–1350), in his Miftah Dar al-SaCadah, also used physical arguments in astronomy to question the practice of judicial astrology. He recognised that the stars are much larger than the planets, and argued: And if you astrologers answer that it is precisely because of this distance and smallness that their influences are negligible, then why is it that you claim a great influence for the smallest heavenly body, Mercury? Why is it that you have given an influence to [the head] and [the tail], which are two imaginary points [ascending and descending nodes]? Modern Martin Luther denounced astrology in his Table Talk. He asked why twins like Esau and Jacob had two different natures yet were born at the same time. Luther also compared astrologers to those who say their dice will always land on a certain number. Although the dice may roll on the number a couple of times, the predictor is silent for all the times the dice fails to land on that number. The Catechism of the Catholic Church maintains that divination, including predictive astrology, is incompatible with modern Catholic beliefs such as free will: Scientific analysis and criticism The scientific community rejects astrology as having no explanatory power for describing the universe, and considers it a pseudoscience. Scientific testing of astrology has been conducted, and no evidence has been found to support any of the premises or purported effects outlined in astrological traditions. There is no proposed mechanism of action by which the positions and motions of stars and planets could affect people and events on Earth that does not contradict basic and well understood aspects of biology and physics. Those who have faith in astrology have been characterised by scientists including Bart J. Bok as doing so "...in spite of the fact that there is no verified scientific basis for their beliefs, and indeed that there is strong evidence to the contrary". Confirmation bias is a form of cognitive bias, a psychological factor that contributes to belief in astrology. Astrology believers tend to selectively remember predictions that turn out to be true, and do not remember those that turn out false. Another, separate, form of confirmation bias also plays a role, where believers often fail to distinguish between messages that demonstrate special ability and those that do not. Thus there are two distinct forms of confirmation bias that are under study with respect to astrological belief. Demarcation Under the criterion of falsifiability, first proposed by the philosopher of science Karl Popper, astrology is a pseudoscience. Popper regarded astrology as "pseudo-empirical" in that "it appeals to observation and experiment," but "nevertheless does not come up to scientific standards." In contrast to scientific disciplines, astrology has not responded to falsification through experiment. In contrast to Popper, the philosopher Thomas Kuhn argued that it was not lack of falsifiability that makes astrology unscientific, but rather that the process and concepts of astrology are non-empirical. Kuhn thought that, though astrologers had, historically, made predictions that categorically failed, this in itself does not make astrology unscientific, nor do attempts by astrologers to explain away failures by claiming that creating a horoscope is very difficult. Rather, in Kuhn's eyes, astrology is not science because it was always more akin to medieval medicine; astrologers followed a sequence of rules and guidelines for a seemingly necessary field with known shortcomings, but they did no research because the fields are not amenable to research, and so "they had no puzzles to solve and therefore no science to practise." While an astronomer could correct for failure, an astrologer could not. An astrologer could only explain away failure but could not revise the astrological hypothesis in a meaningful way. As such, to Kuhn, even if the stars could influence the path of humans through life, astrology is not scientific. The philosopher Paul Thagard asserts that astrology cannot be regarded as falsified in this sense until it has been replaced with a successor. In the case of predicting behaviour, psychology is the alternative. To Thagard a further criterion of demarcation of science from pseudoscience is that the state-of-the-art must progress and that the community of researchers should be attempting to compare the current theory to alternatives, and not be "selective in considering confirmations and disconfirmations." Progress is defined here as explaining new phenomena and solving existing problems, yet astrology has failed to progress having only changed little in nearly 2000 years. To Thagard, astrologers are acting as though engaged in normal science believing that the foundations of astrology were well established despite the "many unsolved problems", and in the face of better alternative theories (psychology). For these reasons Thagard views astrology as pseudoscience. For the philosopher Edward W. James, astrology is irrational not because of the numerous problems with mechanisms and falsification due to experiments, but because an analysis of the astrological literature shows that it is infused with fallacious logic and poor reasoning. Effectiveness Astrology has not demonstrated its effectiveness in controlled studies and has no scientific validity. Where it has made falsifiable predictions under controlled conditions, they have been falsified. One famous experiment included 28 astrologers who were asked to match over a hundred natal charts to psychological profiles generated by the California Psychological Inventory (CPI) questionnaire. The double-blind experimental protocol used in this study was agreed upon by a group of physicists and a group of astrologers nominated by the National Council for Geocosmic Research, who advised the experimenters, helped ensure that the test was fair and helped draw the central proposition of natal astrology to be tested. They also chose 26 out of the 28 astrologers for the tests (two more volunteered afterwards). The study, published in Nature in 1985, found that predictions based on natal astrology were no better than chance, and that the testing "...clearly refutes the astrological hypothesis." In 1955, the astrologer and psychologist Michel Gauquelin stated that though he had failed to find evidence that supported indicators like zodiacal signs and planetary aspects in astrology, he did find positive correlations between the diurnal positions of some planets and success in professions that astrology traditionally associates with those planets. The best-known of Gauquelin's findings is based on the positions of Mars in the natal charts of successful athletes and became known as the Mars effect. A study conducted by seven French scientists attempted to replicate the claim, but found no statistical evidence. They attributed the effect to selective bias on Gauquelin's part, accusing him of attempting to persuade them to add or delete names from their study. Geoffrey Dean has suggested that the effect may be caused by self-reporting of birth dates by parents rather than any issue with the study by Gauquelin. The suggestion is that a small subset of the parents may have had changed birth times to be consistent with better astrological charts for a related profession. The number of births under astrologically undesirable conditions was also lower, indicating that parents choose dates and times to suit their beliefs. The sample group was taken from a time where belief in astrology was more common. Gauquelin had failed to find the Mars effect in more recent populations, where a nurse or doctor recorded the birth information. Dean, a scientist and former astrologer, and psychologist Ivan Kelly conducted a large scale scientific test that involved more than one hundred cognitive, behavioural, physical, and other variables—but found no support for astrology. Furthermore, a meta-analysis pooled 40 studies that involved 700 astrologers and over 1,000 birth charts. Ten of the tests—which involved 300 participants—had the astrologers pick the correct chart interpretation out of a number of others that were not the astrologically correct chart interpretation (usually three to five others). When date and other obvious clues were removed, no significant results suggested there was any preferred chart. Lack of mechanisms and consistency Testing the validity of astrology can be difficult, because there is no consensus amongst astrologers as to what astrology is or what it can predict. Most professional astrologers are paid to predict the future or describe a person's personality and life, but most horoscopes only make vague untestable statements that can apply to almost anyone. Many astrologers claim that astrology is scientific, while some have proposed conventional causal agents such as electromagnetism and gravity. Scientists reject these mechanisms as implausible since, for example, the magnetic field, when measured from Earth, of a large but distant planet such as Jupiter is far smaller than that produced by ordinary household appliances. Western astrology has taken the earth's axial precession (also called precession of the equinoxes) into account since Ptolemy's Almagest, so the "first point of Aries", the start of the astrological year, continually moves against the background of the stars. The tropical zodiac has no connection to the stars, and as long as no claims are made that the constellations themselves are in the associated sign, astrologers avoid the concept that precession seemingly moves the constellations. Charpak and Broch, noting this, referred to astrology based on the tropical zodiac as being "...empty boxes that have nothing to do with anything and are devoid of any consistency or correspondence with the stars." Sole use of the tropical zodiac is inconsistent with references made, by the same astrologers, to the Age of Aquarius, which depends on when the vernal point enters the constellation of Aquarius. Astrologers usually have only a small knowledge of astronomy, and often do not take into account basic principles—such as the precession of the equinoxes, which changes the position of the sun with time. They commented on the example of Élizabeth Teissier, who claimed that, "The sun ends up in the same place in the sky on the same date each year", as the basis for claims that two people with the same birthday, but a number of years apart, should be under the same planetary influence. Charpak and Broch noted that, "There is a difference of about twenty-two thousand miles between Earth's location on any specific date in two successive years", and that thus they should not be under the same influence according to astrology. Over a 40-year period there would be a difference greater than 780,000 miles. Reception in the social sciences The general consensus of astronomers and other natural scientists is that astrology is a pseudoscience which carries no predictive capability, with many philosophers of science considering it a "paradigm or prime example of pseudoscience." Some scholars in the social sciences have cautioned against categorizing astrology, especially ancient astrology, as "just" a pseudoscience or projecting the distinction backwards into the past. Thagard, while demarcating it as a pseudoscience, notes that astrology "should be judged as not pseudoscientific in classical or Renaissance times...Only when the historical and social aspects of science are neglected does it become plausible that pseudoscience is an unchanging category." Historians of science such as Tamsyn Barton, Roger Beck, Francesca Rochberg, and Wouter J. Hanegraaff argue that such a wholesale description is anachronistic when applied to historical contexts, stressing that astrology was not pseudoscience before the 18th century and the importance of the discipline to the development of medieval science. R. J. Hakinson writes in the context of Hellenistic astrology that "the belief in the possibility of [astrology] was, at least some of the time, the result of careful reflection on the nature and structure of the universe." Nicholas Campion, both an astrologer and academic historian of astrology, argues that Indigenous astronomy is largely used as a synonym for astrology in academia, and that modern Indian and Western astrology are better understood as modes of cultural astronomy or ethnoastronomy. Roy Willis and Patrick Curry draw a distinction between propositional episteme and metaphoric metis in the ancient world, identifying astrology with the latter and noting that the central concern of astrology "is not knowledge (factual, let alone scientific) but (ethical, spiritual and pragmatic)". Similarly, historian of science Justin Niermeier-Dohoney writes that astrology was "more than simply a science of prediction using the stars and comprised a vast body of beliefs, knowledge, and practices with the overarching theme of understanding the relationship between humanity and the rest of the cosmos through an interpretation of stellar, solar, lunar, and planetary movement." Scholars such as Assyriologist Matthew Rutz have begun using the term "astral knowledge" rather than astrology "to better describe a category of beliefs and practices much broader than the term 'astrology' can capture." Cultural impact Western politics and society In the West, political leaders have sometimes consulted astrologers. For example, the British intelligence agency MI5 employed Louis de Wohl as an astrologer after claims surfaced that Adolf Hitler used astrology to time his actions. The War Office was "...interested to know what Hitler's own astrologers would be telling him from week to week." In fact, de Wohl's predictions were so inaccurate that he was soon labelled a "complete charlatan", and later evidence showed that Hitler considered astrology "complete nonsense". After John Hinckley's attempted assassination of US President Ronald Reagan, first lady Nancy Reagan commissioned astrologer Joan Quigley to act as the secret White House astrologer. However, Quigley's role ended in 1988 when it became public through the memoirs of former chief of staff, Donald Regan. There was a boom in interest in astrology in the late 1960s. The sociologist Marcello Truzzi described three levels of involvement of "Astrology-believers" to account for its revived popularity in the face of scientific discrediting. He found that most astrology-believers did not claim it was a scientific explanation with predictive power. Instead, those superficially involved, knowing "next to nothing" about astrology's 'mechanics', read newspaper astrology columns, and could benefit from "tension-management of anxieties" and "a cognitive belief-system that transcends science." Those at the second level usually had their horoscopes cast and sought advice and predictions. They were much younger than those at the first level, and could benefit from knowledge of the language of astrology and the resulting ability to belong to a coherent and exclusive group. Those at the third level were highly involved and usually cast horoscopes for themselves. Astrology provided this small minority of astrology-believers with a "meaningful view of their universe and [gave] them an understanding of their place in it." This third group took astrology seriously, possibly as an overarching religious worldview (a sacred canopy, in Peter L. Berger's phrase), whereas the other two groups took it playfully and irreverently. In 1953, the sociologist Theodor W. Adorno conducted a study of the astrology column of a Los Angeles newspaper as part of a project examining mass culture in capitalist society. Adorno believed that popular astrology, as a device, invariably leads to statements that encouraged conformity—and that astrologers who go against conformity, by discouraging performance at work etc., risk losing their jobs. Adorno concluded that astrology is a large-scale manifestation of systematic irrationalism, where individuals are subtly led—through flattery and vague generalisations—to believe that the author of the column is addressing them directly. Adorno drew a parallel with the phrase opium of the people, by Karl Marx, by commenting, "occultism is the metaphysic of the dopes." A 2005 Gallup poll and a 2009 survey by the Pew Research Center reported that 25% of US adults believe in astrology, while a 2018 Pew survey found a figure of 29%. According to data released in the National Science Foundation's 2014 Science and Engineering Indicators study, "Fewer Americans rejected astrology in 2012 than in recent years." The NSF study noted that in 2012, "slightly more than half of Americans said that astrology was 'not at all scientific,' whereas nearly two-thirds gave this response in 2010. The comparable percentage has not been this low since 1983." Astrology apps became popular in the late 2010s, some receiving millions of dollars in Silicon Valley venture capital. India and Japan In India, there is a long-established and widespread belief in astrology. It is commonly used for daily life, particularly in matters concerning marriage and career, and makes extensive use of electional, horary and karmic astrology. Indian politics have also been influenced by astrology. It is still considered a branch of the Vedanga. In 2001, Indian scientists and politicians debated and critiqued a proposal to use state money to fund research into astrology, resulting in permission for Indian universities to offer courses in Vedic astrology. In February 2011, the Bombay High Court reaffirmed astrology's standing in India when it dismissed a case that challenged its status as a science. In Japan, strong belief in astrology has led to dramatic changes in the fertility rate and the number of abortions in the years of Fire Horse. Adherents believe that women born in hinoeuma years are unmarriageable and bring bad luck to their father or husband. In 1966, the number of babies born in Japan dropped by over 25% as parents tried to avoid the stigma of having a daughter born in the hinoeuma year. Literature and music The fourteenth-century English poets John Gower and Geoffrey Chaucer both referred to astrology in their works, including Gower's Confessio Amantis and Chaucer's The Canterbury Tales. Chaucer commented explicitly on astrology in his Treatise on the Astrolabe, demonstrating personal knowledge of one area, judicial astrology, with an account of how to find the ascendant or rising sign. In the fifteenth century, references to astrology, such as with similes, became "a matter of course" in English literature. In the sixteenth century, John Lyly's 1597 play, The Woman in the Moon, is wholly motivated by astrology, while Christopher Marlowe makes astrological references in his plays Doctor Faustus and Tamburlaine (both c. 1590), and Sir Philip Sidney refers to astrology at least four times in his romance The Countess of Pembroke's Arcadia (c. 1580). Edmund Spenser uses astrology both decoratively and causally in his poetry, revealing "...unmistakably an abiding interest in the art, an interest shared by a large number of his contemporaries." George Chapman's play, Byron's Conspiracy (1608), similarly uses astrology as a causal mechanism in the drama. William Shakespeare's attitude towards astrology is unclear, with contradictory references in plays including King Lear, Antony and Cleopatra, and Richard II. Shakespeare was familiar with astrology and made use of his knowledge of astrology in nearly every play he wrote, assuming a basic familiarity with the subject in his commercial audience. Outside theatre, the physician and mystic Robert Fludd practised astrology, as did the quack doctor Simon Forman. In Elizabethan England, "The usual feeling about astrology ... [was] that it is the most useful of the sciences." In seventeenth century Spain, Lope de Vega, with a detailed knowledge of astronomy, wrote plays that ridicule astrology. In his pastoral romance La Arcadia (1598), it leads to absurdity; in his novela Guzman el Bravo (1624), he concludes that the stars were made for man, not man for the stars. Calderón de la Barca wrote the 1641 comedy Astrologo Fingido (The Pretended Astrologer); the plot was borrowed by the French playwright Thomas Corneille for his 1651 comedy Feint Astrologue. The most famous piece of music influenced by astrology is the orchestral suite The Planets. Written by the British composer Gustav Holst (1874–1934), and first performed in 1918, the framework of The Planets is based upon the astrological symbolism of the planets. Each of the seven movements of the suite is based upon a different planet, though the movements are not in the order of the planets from the Sun. The composer Colin Matthews wrote an eighth movement entitled Pluto, the Renewer, first performed in 2000. In 1937, another British composer, Constant Lambert, wrote a ballet on astrological themes, called Horoscope. In 1974, the New Zealand composer Edwin Carr wrote The Twelve Signs: An Astrological Entertainment for orchestra without strings. Camille Paglia acknowledges astrology as an influence on her work of literary criticism Sexual Personae (1990). Astrology features strongly in Eleanor Catton's The Luminaries, recipient of the 2013 Man Booker Prize. See also Astrology and science Astrology software Barnum effect List of astrological traditions, types, and systems List of topics characterised as pseudoscience Jewish astrology Scientific skepticism Notes References Sources Further reading External links Digital International Astrology Library (ancient astrological works) Biblioastrology (www.biblioastrology.com) (specialised bibliography) Paris Observatory Astrology – Merriam-Webster Pseudoscience

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https://en.wikipedia.org/wiki/Ani%20DiFranco

Ani DiFranco

Angela Maria "Ani" DiFranco (; born September 23, 1970) is an American-Canadian singer-songwriter. She has released more than 20 albums. DiFranco's music has been classified as folk rock and alternative rock, although it has additional influences from punk, funk, hip hop and jazz. She has released all her albums on her own record label, Righteous Babe. DiFranco supports many social and political movements by performing benefit concerts, appearing on benefit albums and speaking at rallies. Through the Righteous Babe Foundation, DiFranco has backed grassroots cultural and political organizations supporting causes including abortion rights and LGBT visibility. She counts American folk singer and songwriter Pete Seeger among her mentors. DiFranco released a memoir, No Walls and the Recurring Dream, on May 7, 2019, via Viking Books and made The New York Times Best Seller list. Early life and education DiFranco was born in Buffalo, New York, on September 23, 1970, the daughter of Elizabeth (Ross) and Dante Americo DiFranco, who had met while attending the Massachusetts Institute of Technology. Her father was of Italian descent, and her mother was from Montreal. DiFranco started playing Beatles covers at local bars and busking with her guitar teacher, Michael Meldrum, at the age of nine. By 14 she was writing her own songs. She played them at bars and coffee houses throughout her teens. DiFranco graduated from the Buffalo Academy for Visual and Performing Arts high school at 16 and began attending classes at Buffalo State College. She was living by herself, having moved out of her mother's apartment after she became an emancipated minor when she was 15. Career DiFranco started her own record company, Righteous Babe Records, in 1989 at age 19. She released her self-titled debut album in the winter of 1990, shortly after relocating to New York City. There, she took poetry classes at The New School, where she met poet Sekou Sundiata, who was to become a friend and mentor. She toured steadily for the next 15 years, pausing only to record albums. Appearances at Canadian folk festivals and increasingly larger venues in the U.S. reflected her increasing popularity on the North American folk and roots scene. Throughout the early and mid-1990s DiFranco toured solo and also as a duo with Canadian drummer Andy Stochansky. In September 1995, DiFranco participated in a concert at the Rock and Roll Hall of Fame in Cleveland Ohio, inaugurating the opening of the Woody Guthrie Archives in New York City. She later released a CD on Righteous Babe of the concert Til We Outnumber Em featuring artists such as DiFranco, Billy Bragg, Ramblin' Jack Elliott, Arlo Guthrie, Indigo Girls, Dave Pirner, Tim Robbins, and Bruce Springsteen with 100 percent of proceeds going to the Woody Guthrie Foundation and Archives and the Rock and Roll Hall of Fame Museum educational department. In 1996, bassist Sara Lee joined the touring group, whose live rapport is showcased on the 1997 album Living in Clip. DiFranco would later release Lee's solo album Make It Beautiful on Righteous Babe. In 1998, Stochansky left to pursue a solo career as a singer-songwriter. A new touring ensemble consisting of Jason Mercer on bass, Julie Wolf on keyboards, and Daren Hahn on drums, augmented at times by a horn section, accompanied DiFranco on tour between 1998 and 2002. The 1990s were a period of heightened exposure for DiFranco, as she continued playing ever larger venues around the world and attracted international attention of the press, including cover stories in Spin, Ms., and Magnet, among others, as well as appearances on MTV and VH1. Her playfully ironic cover of the Bacharach/David song "Wishin' and Hopin'" appeared under the opening titles of the film My Best Friend's Wedding. She guest starred on a 1998 episode of the Fox sitcom King of the Hill, as the voice of Peggy's feminist guitar teacher, Emily. Beginning in 1999, Righteous Babe Records began releasing albums by other artists including Sara Lee, Sekou Sundiata, Arto Lindsay, Bitch and Animal, That One Guy, Utah Phillips, Hamell on Trial, Andrew Bird, Kurt Swinghammer, Buddy Wakefield, Anaïs Mitchell and Nona Hendryx. On September 11, 2001, DiFranco was in Manhattan and later penned the poem "Self Evident" about the experience. The poem was featured in the book It's a Free Country: Personal Freedom in America After September 11. The poem's title also became the name of DiFranco's first book of poetry released exclusively in Italy by Minimum Fax. It was later also featured in Verses, a book of her poetry published in the U.S. by Seven Stories press. DiFranco has written and performed many spoken-word pieces throughout her career and was showcased as a poet on the HBO series Def Poetry in 2005. Since her 2005 release Knuckle Down (co-produced by Joe Henry) DiFranco's touring band and recordings have featured bass player Todd Sickafoose and in turns other musicians such as Allison Miller, Andy Borger, Herlin Riley, and Terence Higgins on drums and Mike Dillon on percussion and vibes. On September 11, 2007, she released the first retrospective of her career, a two-disc compilation entitled Canon and simultaneously a retrospective collection of poetry book Verses. On September 30, 2008, she released Red Letter Year. In 2009, DiFranco appeared at Pete Seeger's 90th birthday celebration at Madison Square Garden, debuting her revamped version of the 1930s labor anthem "Which Side Are You On?" in a duet with Bruce Cockburn and also duetting with Kris Kristofferson on the folk classic "There's a Hole in the Bucket". DiFranco released an album on January 17, 2012, ¿Which Side Are You On?. It includes collaborations with Pete Seeger, Ivan Neville, Cyril Neville, Skerik, Adam Levy, Righteous Babe recording artist Anaïs Mitchell, CC Adcock, and a host of New Orleans-based horn players known for their work in such outfits as Galactic, Bonerama, and Rebirth Brass Band. In 2014, she released her eighteenth album, Allergic to Water. In 2017, she released her nineteenth, Binary. On May 7, 2019, DiFranco released a memoir, No Walls and the Recurring Dream, via Viking Books. It is described as a "coming-of-age story". In 2021, DiFranco released the album Revolutionary Love which was largely inspired by Valarie Kaur's book See No Stranger. Personal life DiFranco came out as bisexual in her twenties, and has written songs about love and sex with women and men. She addressed the controversy about her sexuality in the song "In or Out" on the album Imperfectly (1992). However, in 2015 she told the blog GoPride.com that she was ""not so queer anymore, but definitely a woman-centered woman and just a human rights-centered artist." In a 2019 interview with Jezebel, she stated that she preferred the term "queer" because "bisexual" "always sounded very medical, like something you do to a frog in 9th grade science or something", and further added that "the irony is I'm pretty fuckin' hetero, which is unfortunate for me because many of my deepest connections are with women. But, naw, I just like what's in boys' pants better.". In 1998, she married her sound engineer Andrew Gilchrist in a Unitarian Universalist service in Canada. DiFranco and Gilchrist divorced in 2003. In 1990, she wrote "Lost Woman Song", which was inspired by her abortions at ages eighteen and twenty. DiFranco's father died in the summer of 2004. In July 2005, DiFranco developed tendinitis and took a nine-month hiatus from touring. In January 2007 DiFranco gave birth to her first child, a daughter, at her Buffalo home. She married the child's father, Mike Napolitano, also her regular producer, in 2009. In an interview on September 13, 2012, DiFranco mentioned that she was pregnant with her second child. In April 2013, she gave birth to her second child, a son. DiFranco has resided in the Bywater, New Orleans, neighborhood since 2008. DiFranco has described herself as an atheist. On the subject of religion, DiFranco has stated: DiFranco has spoken critically of cancel culture, saying it is "just gonna get us nowhere" and "The human family can't divorce each other". DiFranco herself has received criticism for planning a 2013 songwriting retreat at Nottoway, a former slave plantation, and wrote that she "[sympathized] with both sides" regarding the controversial trans-exclusionary policies of the Michigan Womyn's Music Festival. Critical reception DiFranco has been a critical success for much of her career, with a career album average of 72 on Metacritic. Living in Clip, DiFranco's 1998 double live album, is the only one to achieve gold record status to date. DiFranco was praised by The Buffalo News in 2006 as "Buffalo's leading lady of rock music". Starting in 2003, DiFranco was nominated four consecutive times for Best Recording Package at the Grammy Awards, winning in 2004 for Evolve. On July 21, 2006, DiFranco received the Woman of Courage Award at the National Organization for Women (NOW) Conference and Young Feminist Summit in Albany, New York. DiFranco was one of the first musicians to receive the award, given each year to a woman who has set herself apart by her contributions to the feminist movement. In 2009, DiFranco received the Woody Guthrie Award for being a voice of positive social change. Music Style DiFranco's guitar playing is often characterized by a signature staccato style, rapid fingerpicking and many alternate tunings. She delivers many of her lines in a speaking style notable for its rhythmic variation. Her lyrics, which often include alliteration, metaphor, word play and a more or less gentle irony, have also received praise for their sophistication. Although DiFranco's music has been classified as both folk rock and alternative rock, she has reached across genres since her earliest albums incorporating first punk, then funk, hiphop, and jazz influences. While primarily an acoustic guitarist she has used a variety of instruments and styles: brass instrumentation was prevalent in 1998's Little Plastic Castle; a simple walking bass in her 1997 cover of Hal David and Burt Bacharach's "Wishin' and Hopin' "; strings on the 1997 live album Living in Clip and 2004's Knuckle Down; and electronics and synthesizers in 1999's To the Teeth and 2006's Reprieve. DiFranco has stated that "folk music is not an acoustic guitar – that's not where the heart of it is. I use the word 'folk' in reference to punk music and rap music. It's an attitude, it's an awareness of one's heritage, and it's a community. It's subcorporate music that gives voice to different communities and their struggle against authority." Musical collaborations, cover versions, and samples DiFranco has collaborated with a wide range of artists. In 1997, she appeared on Canadian songwriter Bruce Cockburn's Charity of Night album. In 1998, she produced fellow folksinger Dan Bern's album Fifty Eggs. She developed a deep association with folksinger and social activist Utah Phillips throughout the mid-1990s, sharing her stage and her audience with the older musician until his death in 2008 and resulting in two collaborative albums: The Past Didn't Go Anywhere (1996) and Fellow Workers (1999, with liner notes by Howard Zinn). The Past is built around Phillips's storytelling, an important part of his art that had not previously been documented on recordings; on the album, DiFranco provides musical settings for his speaking voice. The followup, Fellow Workers, was recorded live in Daniel Lanois's Kingsway Studio in New Orleans and features Phillips fronting DiFranco's touring band for a collection of songs and stories. Prince recorded two songs with DiFranco in 1999, "Providence" on her To the Teeth album, and "Eye Love U, But Eye Don't Trust U Anymore" on Prince's Rave Un2 the Joy Fantastic album. Funk and soul jazz musician Maceo Parker and rapper Corey Parker have both appeared on DiFranco's albums and featured appearances by her on theirs. Parker and DiFranco toured together in 1999. She has appeared on several compilations of the songs of Pete Seeger and frequented his Hudson Clearwater Revival Festival. In 2001, she appeared on Brazilian artist Lenine's album Falange Canibal. In 2002, her rendition of Greg Brown's "The Poet Game" appeared on Going Driftless: An Artist's Tribute to Greg Brown. Also in 2002 she recorded a duet with Jackie Chan of the Irving Gordon song "Unforgettable" for a record of unlikely collaborations, When Pigs Fly: Songs You Never Thought You'd Hear. In 2005, she appeared on Dar Williams' record My Better Self, duetting on William's cover of Pink Floyd's "Comfortably Numb". She performed with Cyndi Lauper on "Sisters of Avalon" a track from Lauper's 2005 The Body Acoustic album. In 2006, she produced Hamell on Trial's album Songs for Parents Who Enjoy Drugs. In 2008, she appeared on Todd Sickafoose's album Tiny Resisters. In 2010, she co-produced a track with Margaret Cho called "Captain Cameltoe" for the comedian's Cho Dependant album. In 2011, she appeared on Rob Wasserman's album Note of Hope, an exploration of the writings of Woody Guthrie with musical accompaniment, though the track in which she appeared, "Voice", was actually recorded 13 years earlier. Also in 2011 she duetted with Greg Dulli on the Twilight Singers record Dynamite Steps. Other artists have covered and sampled DiFranco's work throughout the years. Her spoken word poem "Self Evident" was covered by Public Enemy founder Chuck D's group called Impossebulls. Alana Davis had some commercial success with DiFranco's song "32 Flavors". Samples from the track "Coming Up" were used by DJ Spooky in his album Live Without Dead Time, produced for AdBusters Magazine in 2003. In 2010, DiFranco played Persephone on Anaïs Mitchell's album Hadestown. DiFranco was approached by Zoe Boekbinder to work on their Prison Music Project, an album of collaborations between incarcerated and formerly incarcerated writers and musicians on the outside. DiFranco co-produced the project with Boekbinder and co-wrote and performed "Nowhere but Barstow and Prison." The album Long Time Gone was released on Righteous Babe Records in 2020 after ten years in the making. Lyrical content Although much of DiFranco's material is autobiographical, it is often also strongly political. Many of her songs are concerned with contemporary social issues such as racism, sexism, sexual abuse, homophobia, reproductive rights, poverty, and war. In 2008, she donated a song to Aid Still Required's CD to assist with the restoration of the devastation done to Southeast Asia from the 2004 tsunami. The combination of personal and political is partially responsible for DiFranco's early popularity among politically active college students, particularly those of the left wing, some of whom set up fan pages on the web to document DiFranco's career as early as 1994. DiFranco's rapid rise in popularity in the mid-1990s was fueled mostly by personal contact and word of mouth rather than mainstream media. Label independence Ani cites her anti-corporate ethos for the main reason she decided to start her own label. This has allowed her a considerable degree of creative freedom over the years, including, for example, providing all instrumentals and vocals and recording the album herself at her home on an analog 8-track reel to reel, and handling much of the artwork and packaging design for her 2004 album Educated Guess. She has referenced this independence from major labels in song more than once, including "The Million You Never Made" (Not a Pretty Girl), which discusses the act of turning down a lucrative contract, "The Next Big Thing" (Not So Soft), which describes an imagined meeting with a label head-hunter who evaluates the singer based on her looks, and "Napoleon" (Dilate), which sympathizes sarcastically with an unnamed friend who did sign with a label. The business grew organically starting in 1990 with the first cassette tape. Connections were made when women in colleges started duplicating and sharing tapes. Offers to play at colleges started coming in and her popularity grew largely by word of mouth and through women's groups or organizations. Zango and Goldenrod, two music distributors specializing in women's music, started carrying DiFranco's music. In general they sold music to independent music stores and women's book stores. In 1995, Righteous Babe Records signed with Koch International for DiFranco's release of Not a Pretty Girl. Her records could then be found in large and small record stores alike. DiFranco has occasionally joined with Prince in discussing publicly the problems associated with major record companies. Righteous Babe Records employs a number of people in her hometown of Buffalo. In a 1997 open letter to Ms. magazine she expressed displeasure that what she considers a way to ensure her own artistic freedom was seen by others solely in terms of its financial success. Activism From the earliest days of her career, DiFranco has lent her voice and her name to a broad range of social movements, performing benefit concerts, appearing on benefit albums, speaking at rallies, and offering info table space to organizations at her concerts and the virtual equivalent on her website, among other methods and actions. In 1999, she created her own not-for-profit organization; as the Buffalo News has reported, "Through the Righteous Babe Foundation, DiFranco has backed various grassroots cultural and political organizations, supporting causes ranging from abortion rights to gay visibility." During the first Gulf War, DiFranco participated in the anti-war movement. In early 1993 she played Pete Seeger's Clearwater Folk Festival for the first time. In 1998, she was a featured performer in the Dead Man Walking benefit concert series raising money for Sister Helen Prejean's "Not in Our Name" anti-death penalty organization. DiFranco's commitment to opposing the death penalty is longstanding; she has also been a long time supporter of the Southern Center for Human Rights. During the 2000 U.S. presidential election, she actively supported and voted for Green Party candidate Ralph Nader, though in an open letter she made clear that if she lived in a swing state, she would vote for Al Gore to prevent George W. Bush from being elected. In 2004, DiFranco visited Burma in order to learn about the Burmese resistance movement and the country's fight for democracy. During her travels she met with then-detained resistance leader Aung San Suu Kyi. Her song "In The Way" was later featured on For the Lady, a benefit CD that donated all proceeds to the United States Campaign for Burma. During the 2004 presidential primaries, she supported liberal, anti-war Democrat Dennis Kucinich, who appeared on stage with her during several of her concerts. After the primary season ended, and John Kerry was the clear Democratic candidate, DiFranco launched a "Vote Dammit!" tour of swing states encouraging audience members to vote. In 2005, she lobbied Congress against the proliferation of nuclear power in general and the placement of nuclear waste dumps on Indian land in particular. In 2008, she again backed Kucinich in his bid for the presidency. In 2002, Righteous Babe Records established the "Aiding Buffalo's Children" program in conjunction with members of the local community to raise funds for Buffalo's public school system. To kick off the program, DiFranco donated "a day's pay"—the performance fee from her concert that year at Shea's Performing Arts Center— to ABC and challenged her fans to do the same. Aiding Buffalo's Children has since been folded into the Community Foundation of Greater Buffalo, contributing to a variety of charitable funds. In 2005, when Hurricane Katrina devastated DiFranco's newly adopted home town of New Orleans, she collected donations from fans around the world through The Righteous Babe Store website for the Katrina Piano Fund, helping musicians replace instruments lost in the hurricane, raising over $47,500 for the cause. In 2010, after the Deepwater Horizon oil spill, she performed at the "For Our Coast" benefit concert joining Marianne Faithfull, C. C. Adcock and others at the Acadiana Center for the Arts Theater in Lafayette, raising money for Gulf Aid Acadiana, and the Gulf Aid show with Lenny Kravitz, Mos Def, and others at Mardi Gras World River City in New Orleans, both shows raising money to help protect the wetlands, clean up the coast and to assist the fishermen and their families affected by the spill. DiFranco also sits on the board for The Roots of Music, founded by Rebirth Brass Band drummer Derrick Tabb. The organization provides free marching band instruction to children in the New Orleans area in addition to academic tutoring and mentoring. DiFranco joined about 500,000 people at the March for Women's Lives in DC in April 2004. As an honored guest she marched in the front row for the three-mile route, along with Margaret Cho, Janeane Garofalo, Whoopi Goldberg, Gloria Steinem and others. Later in the day, Ani played a few songs on the main stage in front of the Capitol, including "Your Next Bold Move". Scot Fisher, formerly Righteous Babe label president and DiFranco's manager for many years, has been a longtime advocate of the preservation movement in Buffalo. In 1999, he and DiFranco purchased a decaying church on the verge of demolition in downtown Buffalo and began the lengthy process of restoring it. In 2006, the building opened its doors again, first briefly as "The Church" and then as "Babeville," housing two concert venues, the record label's business office, and Hallwalls Contemporary Arts Center. DiFranco is also a member of the Toronto-based charity Artists Against Racism for which she participated in a radio PSA. Awards and nominations Discography Studio albums Ani DiFranco (1990) Not So Soft (1991) Imperfectly (1992) Puddle Dive (1993) Out of Range (1994) Not a Pretty Girl (1995) Dilate (1996) Little Plastic Castle (1998) Up Up Up Up Up Up (1999) To the Teeth (1999) Revelling/Reckoning (2001) Evolve (2003) Educated Guess (2004) Knuckle Down (2005) Reprieve (2006) Red Letter Year (2008) ¿Which Side Are You On? (2012) Allergic to Water (2014) Binary (2017) Revolutionary Love (2021) with Utah Phillips The Past Didn't Go Anywhere (1996) Fellow Workers (1999) Live albums 1994 – An Acoustic Evening With 1994 – Women in (E)motion (German Release) 1997 – Living in Clip 2002 – So Much Shouting, So Much Laughter 2004 – Atlanta – 10.9.03 (Official Bootleg series #1) 2004 – Sacramento – 10.25.03 (Official Bootleg series #1) 2004 – Portland – 4.7.04 (Official Bootleg series #1) 2005 – Boston – 11.16.03 (Official Bootleg series #1) 2005 – Chicago – 1.17.04 (Official Bootleg series #1) 2005 – Madison – 1.25.04 (Official Bootleg series #1) 2005 – Rome – 11.15.04 (Official Bootleg series #1) 2006 – Carnegie Hall – 4.6.02 (Official Bootleg series No. 1 – available in stores) 2007 – Boston – 11.10.06 (Official Bootleg series #1) 2008 – Hamburg – 10.18.07 (Official Bootleg series #1) 2009 – Saratoga, CA – 9.18.06 (Official Bootleg series #1) 2009 – Chicago – 9.22.07 (Official Bootleg series #1) 2010 – Live at Bull Moose Music (Limited edition) 2012 – Buffalo – April 22, 2012 (Official Bootleg series #2) 2013 – London – October 29, 2008 (Official Bootleg series #2) 2014 – Ridgefield, CT – November 18, 2009 (Official Bootleg series #2) 2014 – Harrisburg, PA – January 23, 2008 (Official Bootleg series #2) 2015 – New York, NY – March 30, 1995 (Official Bootleg series #2) 2016 – Glenside, PA – November 11, 2012 (Official Bootleg series #2) 2016 – Melbourne, FL – January 19, 2016 (Official Bootleg series #2) 2018 – Charlottesville, VA 5.12.18 (Official Bootleg series #3) 2019 – Woodstock, NY Jun 16, 2019 (Official Bootleg series #3) 2020 – Keene, NH Nov 16, 2019 (Official Bootleg series #3) 2021 – Revolutionary Love: Live at Big Blue EPs 1996 – More Joy, Less Shame 1999 – Little Plastic Remixes (limited distribution) 2000 – Swing Set 2016 – Play God Videos 2002 – Render: Spanning Time with Ani DiFranco 2004 – Trust 2008 – Live at Babeville Compilations 1993 – Like I Said: Songs 1990–91 1995 – Live from Mountain Stage, Vol. 8 – "Buildings & Bridges (live)" 1996 – Women's Work – "Cradle and All (live)" 1996 – Women: Live from Mountain Stage – "Egos Like Hairdos (live)" 1997 – Divine Divas: A World of Women's Voices – "Amazing Grace" 1998 – Live at World Café Vol. 6 – "Buildings & Bridges (live)" 1998 – Modern Day Storytellers – "Buildings & Bridges" 1998 – Rare on Air Vol. 4 (KCRW) – "Gravel (live)" 1998 – Where Have All the Flowers Gone: Songs of Pete Seeger – "My Name is Lisa Kalvelage" 1998 – Women of Spirit – "Done Wrong" 1999 – Respect: A Century of Women in Music – "32 Flavors" 2000 – Badlands: A Tribute to Bruce Springsteen's Nebraska – "Used Cars" 2000 – Best of Hard Rock Café Live – "Little Plastic Castle (live)" 2000 – 'Til We Outnumber 'Em – Performed "Do Re Mi" solo and "Ramblin' Round" with Indigo Girls; Producer 2001 – Live @ The World Café Vol. 10 – "32 Flavors" 2001 – Best of Sessions at West 54th – "32 Flavors" 2002 – Gascd – "Your Next Bold Move" 2002 – Going Driftless: An Artist Tribute to Greg Brown – "The Poet Game" 2002 – When Pigs Fly: Songs You Never Thought You'd Hear – "Unforgettable" w/ Jackie Chan 2003 – Peace Not War – "Self Evident" 2004 – Peace Not War Vol. 2 – "Animal" 2004 – For the Lady – "In the Way" 2005 – Bonnaroo Music Festival 2004 (CD & DVD) – "Evolve (live)" 2006 – Music Is Hope – "Napoleon (remix)" 2006 – Dead Man Walking: Music from and Inspired by the Motion Picture – "Crime for Crime", "Fuel", "Up Up Up Up Up Up" 2007 – Canon 2007 – Sowing the Seed: The 10th Anniversary Appleseed Recordings – "Waist Deep in the Big Muddy" 2007 – Cool as Folk: Cambridge Folk Festival – "Cradle and All (live)" 2009 – Singing Through the Hard Times: A Utah Phillips Celebration – "The International" 2011 – Note of Hope: A Celebration of Woody Guthrie – "Voice" 2011 – Every Mother Counts – "Present/Infant" (Remix) 2012 – Occupy This Album – "Which Side Are You On? (a capella)" 2019 – No Walls Mixtape 2020 – Prison Music Project: Long Time Gone – "Nowhere but Barstow and Prison" As producer 1998 – Dan Bern – Fifty Eggs 2010 – Margaret Cho – Cho Dependent – co-producer on "Captain Cameltoe" 2017 – Peter Mulvey – Are You Listening? 2020 – Prison Music Project: Long Time Gone Other contributions 1989 – Demo tape (unreleased) 2001 – John Gorka – The Company You Keep – backing vocals on "Oh Abraham" 2006 – Jason Karaban – Doomed to Make Choices 2006 – Twilight Singers – Powder Burns – Featured on "Bonnie Brae," "Candy Cane Crawl," and "Powder Burns" 2008 – Dr. John – The City That Care Forgot – Contributed backing vocals to the title track. 2009 – Jason Karaban – Sobriety Kills 2010 – Anaïs Mitchell – Hadestown 2010 – Preservation Hall Jazz Band – Preservation: An Album to Benefit Preservation Hall & The Preservation Hall Music Outreach Program – Featured on "Freight Train" 2011 – Twilight Singers – Dynamite Steps – Featured on "Blackbird and the Fox" 2016 – Ryan Harvey – Featured on "Old Man Trump" 2019 – Rising Appalachia – Leylines – Featured on "Speak Out" 2021 – Pieta Brown – Featured on "We Are Not Machines" Poetry 2004 – Self-evident: poesie e disegni 2007 – Verses References External links The Righteous Babe homepage Ani DiFranco at Rolling Stone 1970 births American activists 20th-century American women guitarists 20th-century American guitarists 20th-century atheists 20th-century American LGBT people 21st-century American bass guitarists 21st-century American composers 21st-century American singer-songwriters 21st-century American women guitarists 21st-century American women singers 21st-century atheists 21st-century American LGBT people 21st-century women composers Activists from New York (state) American abortion-rights activists American acoustic guitarists American anti–death penalty activists American atheists American contraltos American folk guitarists American folk rock musicians American folk singers American gun control activists American people of Canadian descent American people of Italian descent American rock songwriters American street performers American women rock singers American women singer-songwriters Anti-corporate activists Atheist feminists Bisexual feminists Bisexual singers Bisexual composers Bisexual songwriters Bisexual women musicians Buffalo State College alumni Feminist musicians Grammy Award winners Guitarists from New York (state) LGBT people from New York (state) American LGBT rights activists American LGBT singers American LGBT songwriters American LGBT composers Living people Musicians from Buffalo, New York The New School alumni Righteous Babe Records artists Singer-songwriters from New York (state) Women bass guitarists American bisexual musicians American bisexual writers

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https://en.wikipedia.org/wiki/Aesthetics

Aesthetics

Aesthetics (also spelled esthetics) is the branch of philosophy concerned with the nature of beauty and the nature of taste; and functions as the philosophy of art. Aesthetics examines the philosophy of aesthetic value, which is determined by critical judgements of artistic taste; thus, the function of aesthetics is the "critical reflection on art, culture and nature". Aesthetics studies natural and artificial sources of experiences and how people form a judgement about those sources of experience. It considers what happens in our minds when we engage with objects or environments such as viewing visual art, listening to music, reading poetry, experiencing a play, watching a fashion show, movie, sports or exploring various aspects of nature. The philosophy of art specifically studies how artists imagine, create, and perform works of art, as well as how people use, enjoy, and criticize art. Aesthetics considers why people like some works of art and not others, as well as how art can affect our moods and our beliefs. Both aesthetics and the philosophy of art try to find answers to what exactly is art and what makes good art. Etymology The word aesthetic is derived from the Ancient Greek (, "perceptive, sensitive, pertaining to sensory perception"), which in turn comes from (, "I perceive, sense, learn") and is related to (, "perception, sensation"). Aesthetics in this central sense has been said to start with the series of articles on "The Pleasures of the Imagination", which the journalist Joseph Addison wrote in the early issues of the magazine The Spectator in 1712. The term aesthetics was appropriated and coined with new meaning by the German philosopher Alexander Baumgarten in his dissertation Meditationes philosophicae de nonnullis ad poema pertinentibus () in 1735; Baumgarten chose "aesthetics" because he wished to emphasize the experience of art as a means of knowing. Baumgarten's definition of aesthetics in the fragment Aesthetica (1750) is occasionally considered the first definition of modern aesthetics. The term was introduced into the English language by Thomas Carlyle in his Life of Friedrich Schiller (1825). History of aesthetics The history of the philosophy of art as aesthetics covering the visual arts, the literary arts, the musical arts and other artists forms of expression can be dated back at least to Aristotle and the ancient Greeks. Aristotle writing of the literary arts in his Poetics stated that epic poetry, tragedy, comedy, dithyrambic poetry, painting, sculpture, music, and dance are all fundamentally acts of mimesis ("imitation"), each varying in imitation by medium, object, and manner. He applies the term mimesis both as a property of a work of art and also as the product of the artist's intention and contends that the audience's realisation of the mimesis is vital to understanding the work itself. Aristotle states that mimesis is a natural instinct of humanity that separates humans from animals and that all human artistry "follows the pattern of nature". Because of this, Aristotle believed that each of the mimetic arts possesses what Stephen Halliwell calls "highly structured procedures for the achievement of their purposes." For example, music imitates with the media of rhythm and harmony, whereas dance imitates with rhythm alone, and poetry with language. The forms also differ in their object of imitation. Comedy, for instance, is a dramatic imitation of men worse than average; whereas tragedy imitates men slightly better than average. Lastly, the forms differ in their manner of imitation – through narrative or character, through change or no change, and through drama or no drama. Eric Auerbach has extended the discussion of history of aesthetics in his book titled Mimesis. Aesthetics and the philosophy of art Some distinguish aesthetics from the philosophy of art, claiming that the former is the study of beauty and taste while the latter is the study of works of art. But aesthetics typically considers questions of beauty as well as of art. It examines topics such as art works, aesthetic experience, and aesthetic judgments. Aesthetic experience refers to the sensory contemplation or appreciation of an object (not necessarily a work of art), while artistic judgement refers to the recognition, appreciation or criticism of art in general or a specific work of art. In the words of one philosopher, "Philosophy of art is about art. Aesthetics is about many things—including art. But it is also about our experience of breathtaking landscapes or the pattern of shadows on the wall opposite your office. Philosophers of art weigh a culturally contingent conception of art versus one that is purely theoretical. They study the varieties of art in relation to their physical, social, and cultural environments. Aesthetic philosophers sometimes also refer to psychological studies to help understand how people see, hear, imagine, think, learn, and act in relation to the materials and problems of art. Aesthetic psychology studies the creative process and the aesthetic experience. Aesthetic judgment, universals, and ethics Aesthetic judgment Aesthetics examines affective domain response to an object or phenomenon. Judgments of aesthetic value rely on the ability to discriminate at a sensory level. However, aesthetic judgments usually go beyond sensory discrimination. For David Hume, delicacy of taste is not merely "the ability to detect all the ingredients in a composition", but also the sensitivity "to pains as well as pleasures, which escape the rest of mankind." Thus, sensory discrimination is linked to capacity for pleasure. For Immanuel Kant (Critique of Judgment, 1790), "enjoyment" is the result when pleasure arises from sensation, but judging something to be "beautiful" has a third requirement: sensation must give rise to pleasure by engaging reflective contemplation. Judgments of beauty are sensory, emotional and intellectual all at once. Kant (1790) observed of a man "If he says that canary wine is agreeable he is quite content if someone else corrects his terms and reminds him to say instead: It is agreeable to me," because "Everyone has his own (sense of) taste". The case of "beauty" is different from mere "agreeableness" because, "If he proclaims something to be beautiful, then he requires the same liking from others; he then judges not just for himself but for everyone, and speaks of beauty as if it were a property of things." Viewer interpretations of beauty may on occasion be observed to possess two concepts of value: aesthetics and taste. Aesthetics is the philosophical notion of beauty. Taste is a result of an education process and awareness of elite cultural values learned through exposure to mass culture. Bourdieu examined how the elite in society define the aesthetic values like taste and how varying levels of exposure to these values can result in variations by class, cultural background, and education. According to Kant, beauty is subjective and universal; thus certain things are beautiful to everyone. In the opinion of Władysław Tatarkiewicz, there are six conditions for the presentation of art: beauty, form, representation, reproduction of reality, artistic expression and innovation. However, one may not be able to pin down these qualities in a work of art. The question of whether there are facts about aesthetic judgments belongs to the branch of metaphilosophy known as meta-aesthetics. Factors involved in aesthetic judgment Aesthetic judgement is closely tied to disgust. Responses like disgust show that sensory detection is linked in instinctual ways to facial expressions including physiological responses like the gag reflex. Disgust is triggered largely by dissonance; as Darwin pointed out, seeing a stripe of soup in a man's beard is disgusting even though neither soup nor beards are themselves disgusting. Aesthetic judgments may be linked to emotions or, like emotions, partially embodied in physical reactions. For example, the awe inspired by a sublime landscape might physically manifest with an increased heart-rate or pupil dilation. As seen, emotions are conformed to 'cultural' reactions, therefore aesthetics is always characterized by 'regional responses', as Francis Grose was the first to affirm in his 'Rules for Drawing Caricaturas: With an Essay on Comic Painting' (1788), published in W. Hogarth, The Analysis of Beauty, Bagster, London s.d. (1791? [1753]), pp. 1–24. Francis Grose can therefore be claimed to be the first critical 'aesthetic regionalist' in proclaiming the anti-universality of aesthetics in contrast to the perilous and always resurgent dictatorship of beauty. 'Aesthetic Regionalism' can thus be seen as a political statement and stance which vies against any universal notion of beauty to safeguard the counter-tradition of aesthetics related to what has been considered and dubbed un-beautiful just because one's culture does not contemplate it, e.g. Edmund Burke's sublime, what is usually defined as 'primitive' art, or un-harmonious, non-cathartic art, camp art, which 'beauty' posits and creates, dichotomously, as its opposite, without even the need of formal statements, but which will be 'perceived' as ugly. Likewise, aesthetic judgments may be culturally conditioned to some extent. Victorians in Britain often saw African sculpture as ugly, but just a few decades later, Edwardian audiences saw the same sculptures as beautiful. Evaluations of beauty may well be linked to desirability, perhaps even to sexual desirability. Thus, judgments of aesthetic value can become linked to judgments of economic, political, or moral value. In a current context, a Lamborghini might be judged to be beautiful partly because it is desirable as a status symbol, or it may be judged to be repulsive partly because it signifies over-consumption and offends political or moral values. The context of its presentation also affects the perception of artwork; artworks presented in a classical museum context are liked more and rated more interesting than when presented in a sterile laboratory context. While specific results depend heavily on the style of the presented artwork, overall, the effect of context proved to be more important for the perception of artwork than the effect of genuineness (whether the artwork was being presented as original or as a facsimile/copy). Aesthetic judgments can often be very fine-grained and internally contradictory. Likewise aesthetic judgments seem often to be at least partly intellectual and interpretative. What a thing means or symbolizes is often what is being judged. Modern aestheticians have asserted that will and desire were almost dormant in aesthetic experience, yet preference and choice have seemed important aesthetics to some 20th-century thinkers. The point is already made by Hume, but see Mary Mothersill, "Beauty and the Critic's Judgment", in The Blackwell Guide to Aesthetics, 2004. Thus aesthetic judgments might be seen to be based on the senses, emotions, intellectual opinions, will, desires, culture, preferences, values, subconscious behaviour, conscious decision, training, instinct, sociological institutions, or some complex combination of these, depending on exactly which theory is employed. A third major topic in the study of aesthetic judgments is how they are unified across art forms. For instance, the source of a painting's beauty has a different character to that of beautiful music, suggesting their aesthetics differ in kind. The distinct inability of language to express aesthetic judgment and the role of social construction further cloud this issue. Aesthetic universals The philosopher Denis Dutton identified six universal signatures in human aesthetics: Expertise or virtuosity. Humans cultivate, recognize, and admire technical artistic skills. Nonutilitarian pleasure. People enjoy art for art's sake, and do not demand that it keep them warm or put food on the table. Style. Artistic objects and performances satisfy rules of composition that place them in a recognizable style. Criticism. People make a point of judging, appreciating, and interpreting works of art. Imitation. With a few important exceptions like abstract painting, works of art simulate experiences of the world. Special focus. Art is set aside from ordinary life and made a dramatic focus of experience. Artists such as Thomas Hirschhorn have indicated that there are too many exceptions to Dutton's categories. For example, Hirschhorn's installations deliberately eschew technical virtuosity. People can appreciate a Renaissance Madonna for aesthetic reasons, but such objects often had (and sometimes still have) specific devotional functions. "Rules of composition" that might be read into Duchamp's Fountain or John Cage's 4′33″ do not locate the works in a recognizable style (or certainly not a style recognizable at the time of the works' realization). Moreover, some of Dutton's categories seem too broad: a physicist might entertain hypothetical worlds in his/her imagination in the course of formulating a theory. Another problem is that Dutton's categories seek to universalize traditional European notions of aesthetics and art forgetting that, as André Malraux and others have pointed out, there have been large numbers of cultures in which such ideas (including the idea "art" itself) were non-existent. Aesthetic ethics Aesthetic ethics refers to the idea that human conduct and behaviour ought to be governed by that which is beautiful and attractive. John Dewey has pointed out that the unity of aesthetics and ethics is in fact reflected in our understanding of behaviour being "fair"—the word having a double meaning of attractive and morally acceptable. More recently, James Page has suggested that aesthetic ethics might be taken to form a philosophical rationale for peace education. Beauty Beauty is one of the main subjects of aesthetics, together with art and taste. Many of its definitions include the idea that an object is beautiful if perceiving it is accompanied by aesthetic pleasure. Among the examples of beautiful objects are landscapes, sunsets, humans and works of art. Beauty is a positive aesthetic value that contrasts with ugliness as its negative counterpart. Different intuitions commonly associated with beauty and its nature are in conflict with each other, which poses certain difficulties for understanding it. On the one hand, beauty is ascribed to things as an objective, public feature. On the other hand, it seems to depend on the subjective, emotional response of the observer. It is said, for example, that "beauty is in the eye of the beholder". It may be possible to reconcile these intuitions by affirming that it depends both on the objective features of the beautiful thing and the subjective response of the observer. One way to achieve this is to hold that an object is beautiful if it has the power to bring about certain aesthetic experiences in the perceiving subject. This is often combined with the view that the subject needs to have the ability to correctly perceive and judge beauty, sometimes referred to as "sense of taste". Various conceptions of how to define and understand beauty have been suggested. Classical conceptions emphasize the objective side of beauty by defining it in terms of the relation between the beautiful object as a whole and its parts: the parts should stand in the right proportion to each other and thus compose an integrated harmonious whole. Hedonist conceptions, on the other hand, focus more on the subjective side by drawing a necessary connection between pleasure and beauty, e.g. that for an object to be beautiful is for it to cause disinterested pleasure. Other conceptions include defining beautiful objects in terms of their value, of a loving attitude towards them or of their function. New Criticism and "The Intentional Fallacy" During the first half of the twentieth century, a significant shift to general aesthetic theory took place which attempted to apply aesthetic theory between various forms of art, including the literary arts and the visual arts, to each other. This resulted in the rise of the New Criticism school and debate concerning the intentional fallacy. At issue was the question of whether the aesthetic intentions of the artist in creating the work of art, whatever its specific form, should be associated with the criticism and evaluation of the final product of the work of art, or, if the work of art should be evaluated on its own merits independent of the intentions of the artist. In 1946, William K. Wimsatt and Monroe Beardsley published a classic and controversial New Critical essay entitled "The Intentional Fallacy", in which they argued strongly against the relevance of an author's intention, or "intended meaning" in the analysis of a literary work. For Wimsatt and Beardsley, the words on the page were all that mattered; importation of meanings from outside the text was considered irrelevant, and potentially distracting. In another essay, "The Affective Fallacy," which served as a kind of sister essay to "The Intentional Fallacy" Wimsatt and Beardsley also discounted the reader's personal/emotional reaction to a literary work as a valid means of analyzing a text. This fallacy would later be repudiated by theorists from the reader-response school of literary theory. One of the leading theorists from this school, Stanley Fish, was himself trained by New Critics. Fish criticizes Wimsatt and Beardsley in his essay "Literature in the Reader" (1970). As summarized by Berys Gaut and Livingston in their essay "The Creation of Art": "Structuralist and post-structuralists theorists and critics were sharply critical of many aspects of New Criticism, beginning with the emphasis on aesthetic appreciation and the so-called autonomy of art, but they reiterated the attack on biographical criticisms' assumption that the artist's activities and experience were a privileged critical topic." These authors contend that: "Anti-intentionalists, such as formalists, hold that the intentions involved in the making of art are irrelevant or peripheral to correctly interpreting art. So details of the act of creating a work, though possibly of interest in themselves, have no bearing on the correct interpretation of the work." Gaut and Livingston define the intentionalists as distinct from formalists stating that: "Intentionalists, unlike formalists, hold that reference to intentions is essential in fixing the correct interpretation of works." They quote Richard Wollheim as stating that, "The task of criticism is the reconstruction of the creative process, where the creative process must in turn be thought of as something not stopping short of, but terminating on, the work of art itself." Derivative forms of aesthetics A large number of derivative forms of aesthetics have developed as contemporary and transitory forms of inquiry associated with the field of aesthetics which include the post-modern, psychoanalytic, scientific, and mathematical among others. Post-modern aesthetics and psychoanalysis Early-twentieth-century artists, poets and composers challenged existing notions of beauty, broadening the scope of art and aesthetics. In 1941, Eli Siegel, American philosopher and poet, founded Aesthetic Realism, the philosophy that reality itself is aesthetic, and that "The world, art, and self explain each other: each is the aesthetic oneness of opposites." Various attempts have been made to define Post-Modern Aesthetics. The challenge to the assumption that beauty was central to art and aesthetics, thought to be original, is actually continuous with older aesthetic theory; Aristotle was the first in the Western tradition to classify "beauty" into types as in his theory of drama, and Kant made a distinction between beauty and the sublime. What was new was a refusal to credit the higher status of certain types, where the taxonomy implied a preference for tragedy and the sublime to comedy and the Rococo. Croce suggested that "expression" is central in the way that beauty was once thought to be central. George Dickie suggested that the sociological institutions of the art world were the glue binding art and sensibility into unities. Marshall McLuhan suggested that art always functions as a "counter-environment" designed to make visible what is usually invisible about a society. Theodor Adorno felt that aesthetics could not proceed without confronting the role of the culture industry in the commodification of art and aesthetic experience. Hal Foster attempted to portray the reaction against beauty and Modernist art in The Anti-Aesthetic: Essays on Postmodern Culture. Arthur Danto has described this reaction as "kalliphobia" (after the Greek word for beauty, κάλλος kallos). André Malraux explains that the notion of beauty was connected to a particular conception of art that arose with the Renaissance and was still dominant in the eighteenth century (but was supplanted later). The discipline of aesthetics, which originated in the eighteenth century, mistook this transient state of affairs for a revelation of the permanent nature of art. Brian Massumi suggests to reconsider beauty following the aesthetical thought in the philosophy of Deleuze and Guattari. Walter Benjamin echoed Malraux in believing aesthetics was a comparatively recent invention, a view proven wrong in the late 1970s, when Abraham Moles and Frieder Nake analyzed links between beauty, information processing, and information theory. Denis Dutton in "The Art Instinct" also proposed that an aesthetic sense was a vital evolutionary factor. Jean-François Lyotard re-invokes the Kantian distinction between taste and the sublime. Sublime painting, unlike kitsch realism, "... will enable us to see only by making it impossible to see; it will please only by causing pain." Sigmund Freud inaugurated aesthetical thinking in Psychoanalysis mainly via the "Uncanny" as aesthetical affect. Following Freud and Merleau-Ponty, Jacques Lacan theorized aesthetics in terms of sublimation and the Thing. The relation of Marxist aesthetics to post-modern aesthetics is still a contentious area of debate. Aesthetics and science The field of experimental aesthetics was founded by Gustav Theodor Fechner in the 19th century. Experimental aesthetics in these times had been characterized by a subject-based, inductive approach. The analysis of individual experience and behaviour based on experimental methods is a central part of experimental aesthetics. In particular, the perception of works of art, music, or modern items such as websites or other IT products is studied. Experimental aesthetics is strongly oriented towards the natural sciences. Modern approaches mostly come from the fields of cognitive psychology (aesthetic cognitivism) or neuroscience (neuroaesthetics). In the 1970s, Abraham Moles and Frieder Nake were among the first to analyze links between aesthetics, information processing, and information theory. In the 1990s, Jürgen Schmidhuber described an algorithmic theory of beauty which takes the subjectivity of the observer into account and postulates that among several observations classified as comparable by a given subjective observer, the most aesthetically pleasing is the one that is encoded by the shortest description. He uses the differences between these lengths to account for subjective differences between the aesthetic tastes of different observers, as one's ability to efficiently describe an observation is based on their particular mental method of encoding data and the proximity of the observation to the subject's prior knowledge. The theory is inspired by principles of algorithmic information theory, especially minimum description length, which prefers mathematical models that use the least information to describe data. As an example, Schmidhuber notes that mathematicians tend to aesthetically prefer simple proofs with a short description in their formal language. Another concrete example describes an aesthetically pleasing human face whose proportions can be described by very few bits of information, drawing inspiration from less detailed 15th century proportion studies by Leonardo da Vinci and Albrecht Dürer. Schmidhuber's theory explicitly distinguishes between that which is beautiful and that which is interesting, stating that interestingness corresponds to the first derivative of subjectively perceived beauty. He supposes that every observer continually tries to improve the predictability and compressibility of their observations by identifying regularities like repetition, symmetry, and fractal self-similarity. Whenever the observer's learning process (which may be a predictive artificial neural network) leads to improved data compression such that the observation sequence can be described by fewer bits than before, the temporary interestingness of the data corresponds to the number of saved bits. This compression progress is proportional to the observer's internal reward, also called curiosity reward. A reinforcement learning algorithm is used to maximize future expected reward by learning to execute action sequences that cause additional interesting input data with yet unknown but learnable predictability or regularity. The principles can be implemented on artificial agents which then exhibit a form of artificial curiosity. Truth in beauty and mathematics Mathematical considerations, such as symmetry and complexity, are used for analysis in theoretical aesthetics. This is different from the aesthetic considerations of applied aesthetics used in the study of mathematical beauty. Aesthetic considerations such as symmetry and simplicity are used in areas of philosophy, such as ethics and theoretical physics and cosmology to define truth, outside of empirical considerations. Beauty and Truth have been argued to be nearly synonymous, as reflected in the statement "Beauty is truth, truth beauty" in the poem "Ode on a Grecian Urn" by John Keats, or by the Hindu motto "Satyam Shivam Sundaram" (Satya (Truth) is Shiva (God), and Shiva is Sundaram (Beautiful)). The fact that judgments of beauty and judgments of truth both are influenced by processing fluency, which is the ease with which information can be processed, has been presented as an explanation for why beauty is sometimes equated with truth. Recent research found that people use beauty as an indication for truth in mathematical pattern tasks. However, scientists including the mathematician David Orrell and physicist Marcelo Gleiser have argued that the emphasis on aesthetic criteria such as symmetry is equally capable of leading scientists astray. Computational approaches Computational approaches to aesthetics emerged amid efforts to use computer science methods "to predict, convey, and evoke emotional response to a piece of art. It this field, aesthetics is not considered to be dependent on taste but is a matter of cognition, and, consequently, learning. In 1928, the mathematician George David Birkhoff created an aesthetic measure M = O/C as the ratio of order to complexity. Since about 2005, computer scientists have attempted to develop automated methods to infer aesthetic quality of images. Typically, these approaches follow a machine learning approach, where large numbers of manually rated photographs are used to "teach" a computer about what visual properties are of relevance to aesthetic quality. A study by Y. Li and C.J. Hu employed Birkhoff's measurement in their statistical learning approach where order and complexity of an image determined aesthetic value. The image complexity was computed using information theory while the order was determined using fractal compression. There is also the case of the Acquine engine, developed at Penn State University, that rates natural photographs uploaded by users. There have also been relatively successful attempts with regard to chess and music. Computational approaches have also been attempted in film making as demonstrated by a software model developed by Chitra Dorai and a group of researchers at the IBM T.J. Watson Research Center. The tool predicted aesthetics based on the values of narrative elements. A relation between Max Bense's mathematical formulation of aesthetics in terms of "redundancy" and "complexity" and theories of musical anticipation was offered using the notion of Information Rate. Evolutionary aesthetics Evolutionary aesthetics refers to evolutionary psychology theories in which the basic aesthetic preferences of Homo sapiens are argued to have evolved in order to enhance survival and reproductive success. One example being that humans are argued to find beautiful and prefer landscapes which were good habitats in the ancestral environment. Another example is that body symmetry and proportion are important aspects of physical attractiveness which may be due to this indicating good health during body growth. Evolutionary explanations for aesthetical preferences are important parts of evolutionary musicology, Darwinian literary studies, and the study of the evolution of emotion. Applied aesthetics As well as being applied to art, aesthetics can also be applied to cultural objects, such as crosses or tools. For example, aesthetic coupling between art-objects and medical topics was made by speakers working for the US Information Agency. Art slides were linked to slides of pharmacological data, which improved attention and retention by 'simultaneous activation of intuitive right brain with rational left'. It can also be used in topics as diverse as cartography, mathematics, gastronomy, fashion and website design. Other approaches Guy Sircello has pioneered efforts in analytic philosophy to develop a rigorous theory of aesthetics, focusing on the concepts of beauty, love and sublimity. In contrast to romantic theorists, Sircello argued for the objectivity of beauty and formulated a theory of love on that basis. British philosopher and theorist of conceptual art aesthetics, Peter Osborne, makes the point that "'post-conceptual art' aesthetic does not concern a particular type of contemporary art so much as the historical-ontological condition for the production of contemporary art in general ...". Osborne noted that contemporary art is 'post-conceptual' in a public lecture delivered in 2010. Gary Tedman has put forward a theory of a subjectless aesthetics derived from Karl Marx's concept of alienation, and Louis Althusser's antihumanism, using elements of Freud's group psychology, defining a concept of the 'aesthetic level of practice'. Gregory Loewen has suggested that the subject is key in the interaction with the aesthetic object. The work of art serves as a vehicle for the projection of the individual's identity into the world of objects, as well as being the irruptive source of much of what is uncanny in modern life. As well, art is used to memorialize individuated biographies in a manner that allows persons to imagine that they are part of something greater than themselves. Criticism The philosophy of aesthetics as a practice has been criticized by some sociologists and writers of art and society. Raymond Williams, for example, argues that there is no unique and or individual aesthetic object which can be extrapolated from the art world, but rather that there is a continuum of cultural forms and experience of which ordinary speech and experiences may signal as art. By "art" we may frame several artistic "works" or "creations" as so though this reference remains within the institution or special event which creates it and this leaves some works or other possible "art" outside of the frame work, or other interpretations such as other phenomenon which may not be considered as "art". Pierre Bourdieu disagrees with Kant's idea of the "aesthetic". He argues that Kant's "aesthetic" merely represents an experience that is the product of an elevated class habitus and scholarly leisure as opposed to other possible and equally valid "aesthetic" experiences which lay outside Kant's narrow definition. Timothy Laurie argues that theories of musical aesthetics "framed entirely in terms of appreciation, contemplation or reflection risk idealizing an implausibly unmotivated listener defined solely through musical objects, rather than seeing them as a person for whom complex intentions and motivations produce variable attractions to cultural objects and practices". See also Aesthetics of science Art and Theosophy Art periods Esthesic and poietic Everyday Aesthetics History of aesthetics before the 20th century Japanese aesthetics Medieval aesthetics Mise en scène Theological aesthetics Theory of art References Sources Further reading Mario Perniola, 20th Century Aesthetics. Towards A Theory of Feeling, translated by Massimo Verdicchio, London, New Delhi, New York, Sydney: Bloomsbury, 2013, . Handbook of Phenomenological Aesthetics. Edited by Hans Rainer Sepp and Lester Embree. (Series: Contributions To Phenomenology, Vol. 59) Springer, Dordrecht / Heidelberg / London / New York 2010. Theodor W. Adorno, Aesthetic Theory, Minneapolis, University of Minnesota Press, 1997. Ayn Rand, The Romantic Manifesto: A Philosophy of Literature, New York: New American Library, 1971 Derek Allan, Art and the Human Adventure, Andre Malraux's Theory of Art, Rodopi, 2009 Derek Allan. Art and Time, Cambridge Scholars, 2013. Augros, Robert M., Stanciu, George N., The New Story of Science: mind and the universe, Lake Bluff, Ill.: Regnery Gateway, 1984. (has significant material on Art, Science and their philosophies) John Bender and Gene Blocker, Contemporary Philosophy of Art: Readings in Analytic Aesthetics 1993. René Bergeron. L'Art et sa spiritualité. Québec, QC.: Éditions du Pelican, 1961. Christine Buci-Glucksmann (2003), Esthétique de l'éphémère, Galilée. (French) Noël Carroll (2000), Theories of Art Today, University of Wisconsin Press. Mario Costa (1999) (in Italian), L'estetica dei media. Avanguardie e tecnologia, Milan: Castelvecchi, . Benedetto Croce (1922), Aesthetic as Science of Expression and General Linguistic. E.S. Dallas (1866), The Gay Science, 2 volumes, on the aesthetics of poetry. Danto, Arthur (2003), The Abuse of Beauty: Aesthetics and the Concept of Art, Open Court. Stephen Davies (1991), Definitions of Art. Terry Eagleton (1990), The Ideology of the Aesthetic. Blackwell. Susan L. Feagin and Patrick Maynard (1997), Aesthetics. Oxford Readers. Penny Florence and Nicola Foster (eds.) (2000), Differential Aesthetics. London: Ashgate. Berys Gaut and Dominic McIver Lopes (eds.), Routledge Companion to Aesthetics. 3rd ed. London and New York: Routledge, 2013. Annemarie Gethmann-Siefert (1995), Einführung in die Ästhetik, Munich, W. Fink. David Goldblatt and Lee B. Brown, ed. (2010), Aesthetics: A Reader in the Philosophy of the Arts. 3rd ed. Pearson Publishing. Theodore Gracyk (2011), The Philosophy of Art: An Introduction. Polity Press. Greenberg, Clement (1960), "Modernist Painting", The Collected Essays and Criticism 1957–1969, The University of Chicago Press, 1993, 85–92. Evelyn Hatcher (ed.), Art as Culture: An Introduction to the Anthropology of Art. 1999 Georg Wilhelm Friedrich Hegel (1975), Aesthetics. Lectures on Fine Art, trans. T.M. Knox, 2 vols. Oxford: Clarendon Press. Hans Hofmann and Sara T Weeks; Bartlett H Hayes; Addison Gallery of American Art; Search for the real, and other essays (Cambridge, Massachusetts, M.I.T. Press, 1967) Michael Ann Holly and Keith Moxey (eds.), Art History and Visual Studies. Yale University Press, 2002. Carol Armstrong and Catherine de Zegher (eds.), Women Artists at the Millennium. Massachusetts: October Books/MIT Press, 2006. Kant, Immanuel (1790), Critique of Judgement, Translated by Werner S. Pluhar, Hackett Publishing Co., 1987. Kelly, Michael (Editor in Chief) (1998) Encyclopedia of Aesthetics. New York, Oxford, Oxford University Press. 4 vol. pp. xvii–521, pp. 555, pp. 536, pp. 572; 2224 total pages; 100 b/w photos; . Covers philosophical, historical, sociological, and biographical aspects of Art and Aesthetics worldwide. Søren Kierkegaard (1843), Either/Or, translated by Alastair Hannay, London, Penguin, 1992 Peter Kivy (ed.), The Blackwell Guide to Aesthetics. 2004 Carolyn Korsmeyer (ed.), Aesthetics: The Big Questions. 1998 Lyotard, Jean-François (1979), The Postmodern Condition, Manchester University Press, 1984. Merleau-Ponty, Maurice (1969), The Visible and the Invisible, Northwestern University Press. David Novitz (1992), The Boundaries of Art. Mario Perniola, The Art and Its Shadow, foreword by Hugh J. Silverman, translated by Massimo Verdicchio, London-New York, Continuum, 2004. Griselda Pollock, "Does Art Think?" In: Dana Arnold and Margaret Iverson (eds.) Art and Thought. Oxford: Basil Blackwell, 2003. 129–174. . Griselda Pollock, Encounters in the Virtual Feminist Museum: Time, Space and the Archive. Routledge, 2007. . Griselda Pollock, Generations and Geographies in the Visual Arts. Routledge, 1996. . George Santayana (1896), The Sense of Beauty. Being the Outlines of Aesthetic Theory. New York, Modern Library, 1955. Elaine Scarry, On Beauty and Being Just. Princeton, 2001. Friedrich Schiller, (1795), On the Aesthetic Education of Man. Dover Publications, 2004. Alan Singer and Allen Dunn (eds.), Literary Aesthetics: A Reader. Blackwell Publishing Limited, 2000. Jadranka Skorin-Kapov, The Intertwining of Aesthetics and Ethics: Exceeding of Expectations, Ecstasy, Sublimity. Lexington Books, 2016. Władysław Tatarkiewicz, A History of Six Ideas: an Essay in Aesthetics, The Hague, 1980. Władysław Tatarkiewicz, History of Aesthetics, 3 vols. (1–2, 1970; 3, 1974), The Hague, Mouton. Markand Thakar Looking for the 'Harp' Quartet: An Investigation into Musical Beauty. University of Rochester Press, 2011. Leo Tolstoy, What Is Art?, Penguin Classics, 1995. Roger Scruton, Beauty: A Very Short Introduction, Oxford University Press, 2009. Roger Scruton, The Aesthetic Understanding: Essays in the Philosophy of Art and Culture (1983) The London Philosophy Study Guide offers many suggestions on what to read, depending on the student's familiarity with the subject: Aesthetics John M. Valentine, Beginning Aesthetics: An Introduction to the Philosophy of Art. McGraw-Hill, 2006. von Vacano, Diego, "The Art of Power: Machiavelli, Nietzsche and the Making of Aesthetic Political Theory," Lanham MD: Lexington: 2007. Thomas Wartenberg, The Nature of Art. 2006. John Whitehead, Grasping for the Wind. 2001. Ludwig Wittgenstein, Lectures on aesthetics, psychology and religious belief, Oxford, Blackwell, 1966. Richard Wollheim, Art and its objects, 2nd edn, 1980, Cambridge University Press, Gino Zaccaria, The Enigma of Art. On the Provenance of Artistic Creation, 2021, Brill, Ben Shneiderman, The Power of Aesthetic: Enhancing Visual Appeal in Your Designs , Ben, 1968. Jean-Marc Rouvière, Au prisme du readymade, incises sur l'identité équivoque de l'objet préface de Philippe Sers et G. Litichevesky, Paris L'Harmattan 2023 Indian aesthetics External links Aesthetics in Continental Philosophy article in the Internet Encyclopedia of Philosophy Medieval Theories of Aesthetics article in the Internet Encyclopedia of Philosophy Revue online Appareil Postscript 1980 – Some Old Problems in New Perspectives Aesthetics in Art Education: A Look Toward Implementation More about Art, culture and Education The Concept of the Aesthetic Aesthetics entry in the Routledge Encyclopedia of Philosophy Philosophy of Aesthetics entry in the Philosophy Archive Washington State Board for Community & Technical Colleges: Introduction to Aesthetics Beauty , BBC Radio 4 discussion with Angie Hobbs, Susan James & Julian Baggini (In Our Time, 19 May 2005) 1730s neologisms Humanities

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https://en.wikipedia.org/wiki/Aster%20CT-80

Aster CT-80

The Aster CT-80 is a 1982 personal computer developed by the small Dutch company MCP (later renamed to Aster Computers), was sold in its first incarnation as a kit for hobbyists. Later it was sold ready to use. It consisted of several Eurocard PCB's with DIN 41612 connectors, and a backplane all based on a 19-inch rack configuration. It was the first commercially available Dutch personal/home computer. The Aster computer could use the software written for the popular Tandy TRS-80 computer while fixing many of the problems of that computer, but it could also run CP/M software, with a large amount of free memory Transient Program Area, (TPA) and a full 80×25 display, and it could be used as a Videotext terminal. Although the Aster was a clone of the TRS-80 Model I it was in fact more compatible with the TRS-80 Model III and ran all the software of these systems including games. It also had a built-in speaker which was compatible with such games software. Models Three models were sold. The first model (launched June 1982) looked like the IBM PC, a rectangular base unit with two floppy drives on the front, and a monitor on top with a separate detachable keyboard. The second incarnation was a much smaller unit the width of two 5" floppy drives stacked on top of each other, and the third incarnation looked like a flattened Apple with a built-in keyboard. All units ran much faster than the original TRS-80, at 4 MHz, (with a software selectable throttle to the original speed for compatibility purposes) and the display supported upper and lower case, hardware snow suppression (video ram bus arbitration logic), and an improved character font set. The floppy disk interface supported dual density, and disk capacities up to 800 KB, more than four times the capacity of the original TRS-80. A special version of NewDos/80, (an improved TRS-DOS compatible Disk operating system) was used to support these disk capacities when using the TRS-80 compatibility mode. For the educational market a version of the first model was produced with a new plastic enclosure (the First Asters had an all-metal enclosure) that also had an opening on the top in which a cassette recorder could be placed. This model was used in a cluster with one Aster (with disk drives) for the teacher, and eight disk less versions for the pupils. The pupils could download software from the teachers computer through a network based on a fast serial connection, as well as sending back their work to the teachers computer. There was also hardware in place through which the teacher could see the display of each pupils screen on his own monitor. Working modes The Aster used 64 KB of RAM and had the unique feature of supporting two fundamentally different internal architectures: when turned on without a boot floppy or with a TRS-DOS floppy, the Aster would be fully TRS-80 compatible, with 48 KB of RAM. When the boot loader detected a CP/M floppy, the Aster would reconfigure its internal memory architecture on the fly to optimally support CP/M with 60 KB free RAM for programs (TPA) and an 80 x 25 display. This dual-architecture capability only existed on one other TRS-80 clone, the LOBO Max-80. With a special configuration tool, the CT-80 could reconfigure its floppy drivers to read and write the floppies of about 80 other CP/M systems. A third mode was entered with a special boot floppy which turned the Aster into a Videotex terminal with a 40x25 display and a Videotex character set, The software used the built in RS-232 interface of the Aster to control a modem through which it could contact a Prestel service provider. Sales Most Aster CT-80's (about 10 thousand of them) were sold to schools for computer education, in a project first known as the "honderd scholen project" (one hundred schools project), but which later involved many more than just one hundred schools. MCP received this order from the Dutch government because their computer met all the technical and other demands, including the demand that the computers should be of Dutch origin and should be built in the Netherlands. Another important demand was that the computers could be used in a network (Aster developed special software and hardware for that). Later however the Government turned around and gave 50% of the order to Philips and their P2000 homecomputer even though the P2000 did not meet all the technical demands, was made in Austria and did not have network hardware nor software. Company Aster computers was based in the small town of Arkel near the town of Gorinchem. Initially Aster computer b.v. was called MCP (Music print Computer Product), because it was specialized in producing computer assisted printing of sheet music. The director of the company was interested in Microprocessor technology and noticed there was a market for selling kits to computer building amateurs, so they started selling electronic kits to hobbyists, and employed four persons at that time . They also assembled kits for people without soldering skills, especially the "junior Computer" from Elektor (a copy of the KIM-1), and the ZX80 from Sinclair. Among the kits sold there were also alternative floppy disk drives for TRS-80 computers. But these needed the infamous TRS-80 expansion interface, which was very expensive, and had a very unreliable floppy disk controller because it used the WD1771 floppy disk controller chip without an external "data separator". To fix this problem MCP developed a small plugin board which could be plugged into the socket for the WD1771, and which contained a data separator, and a socket for the WD1791 to support dual-density operation. Still, the expansion interface was expensive and due to its design it was also unreliable. So they decided to also develop their own alternative in the form of an improved floppy disk controller and printer interface that could be built right into a floppy disk enclosure. The lack of RAM expansion offered by this solution was solved by a service in which the 16 KB RAM chips inside the base unit would be replaced by 64 KB RAM chips. While this went on MCP renamed itself to MCP CHIP but ran into problems with the German computer magazine CHIP, and had to return to its former name. At that time MCP did also sell imported home computers like the TRS-80, the Video Genie (another TRS-80 clone), the Luxor ABC 80 and the Apple II. They also sold the exotic Olivetti M20, a very early 16-bit personal computer that was one of the very few systems to use a Z8000 CPU. After designing their own fully functional replacement for the TRS-80 expansion interface (which was never commercialized) the company realized that they could do better than just re-designing the expansion interface. They observed that the TRS-80 was a great computer but it lacked in several areas. The display logic and resulting display 'snow' was irritating, as was the missing lower case support, the CPU speed could be improved, the quality and layout of the keyboard was bothersome, and the floppy disk capacity and reliability was low. Also the more interesting software offered for CP/M systems could not run well on a TRS-80. So they decided to design a TRS-80 and CP/M software-compatible computer system, which (following the lead of Apple Computer) they decided to name after a "typical Dutch flower". So they called it the Aster CT-80 (CP/M/Tandy-1980). Why they went with Aster, and not the more well known Tulip is unknown, perhaps they thought it would be to presumptuous, or perhaps the fact that "Aster" is also a Dutch girls' name has something to do with it. Remarkably "Aster" was also the name given to a Dutch Supercomputer much later, in 2002. The first version of the Aster consisted of four "Eurocards", one Z80 CPU card with 64 KB memory, one Motorola MC6845-based video card, one double density floppy disk controller card and one "keyboard/RS-232/cassette interface" card. Plus a "backplane card", (which connected all the other cards) and a keyboard. And was intended for hobbyists, to be sold as a kit consisting of the parts and the PCB's for the computer and attached keyboard. After selling a few kits, MCP became convinced there was a much bigger market for an improved model sold as a completed working system. However the original kit version lacked many features that prevented its use as a serious computer system. Because the original designer had left the company another employee completely redesigned most of the system, (adding a display snow remover circuit, true 80/64 column text mode support, (with different size letters for TRS-80 and CP/M mode, so that in TRS-80 mode the full screen was also used, not just a 64×16 portion of the 80×25 screen) with an improved font set (adding "gray scale" version of the TRS-80 mozaik graphics and many special PETSCII like characters), and a more flexible and reliable floppy disk controller and keyboard interface plus many other small improvements), also an enclosure was developed for the main computer system, (in the form of a 19-inch rack for the Eurocards) and for two floppy disk drives and the power supply. A software engineer was hired to write the special "dual boot mode" BIOS and the special CP/M BIOS. The "dual boot mode" BIOS actually discovered whether a TRS-DOS, or Aster CP/M disk was placed in the drive, and would, depending on the type of disk, reorganise the internal memory architecture of the system, to either be 100% TRS-80 compatible or optimally support CP/M, with as much "workspace" as possible, and the 80×25 video mode. It also was responsible for switching to ROM BASIC when the system was turned on with the break key pressed, and later supported a primitive LAN system, using the RS-232 port with modified cabling. The very first of the ready made computers were sold with the "kit" versions of the euro cards, the version with redesigned cards came a month or so later. Soon the little shop became much too small and they moved to a much larger factory building nearby (formerly a window glass factory), and started mass-producing the Aster for a period of a few years, in which time its staff grew twentyfold. After the Aster having been a few years on the Market Tandy released its own improved model, the TRS-80 Model III computer which solved many of the same problems that the Aster also had solved, but the model 3 still did not fully support CP/M as the Aster did. In the meantime IBM had released its original IBM PC, which incidentally looked remarkably like the Asters base with floppy drives + separate keyboard set-up. The Aster was chosen for Dutch schools by the Dutch ministry of education, in a set-up with eight disk-less Asters, and one Aster with high-capacity floppy drives all connected by a LAN based on the Aster's high-speed serial port hardware, and special cables that permitted that any single computer on the LAN could broadcast to all other computers. The floppy based system was operated by the teacher who could send programs from his floppy disk, and data, to the student's disk-less systems thanks to the special BIOS in those systems. The students could send programs and data back to the teacher through the same LAN, or could save to a cassette recorder built into the disk-less units. Through a special "video-switch" the teacher was also able to see a copy of each student's display on his own screen. About a thousand of such systems were sold for many hundreds of Dutch schools. Because of cash flow problems (resulting from growing too fast, insufficient financial backing, technical problems, and a sudden problem with Z80 processor deliveries) the company suddenly folded even before it came to full fruition. Perhaps the Aster computer inspired another Dutch computer firm to name their computer after another typical Dutch flower—the Tulip's Tulip System-1 which appeared about the same time Aster folded. Most of the engineers who designed the hardware and software of the Aster went on to design hardware and software for the (then new) MSX system for a company called "Micro Technology b.v.". Unreleased add ons To enhance and modernize the Aster CT-80 the company also designed three alternative video display adapters to supplement or replace the TRS-80 compatible video card, (due to the modular nature of the Aster it was simply a matter of changing the video card, and/or CPU card to upgrade the system): A very High resolution monochrome video card with blitter and hardware text line and arc drawing capability, was designed for CAD applications, based on the NEC μPD7220 chip designed for graphic terminals, but was also used by some personal computers like the DEC Rainbow, and notably also for the Tulip System I. A colour video card with sprite capability based on the same TMS9918 video chip as the TI-99/4 and MSX computers, designed for gaming, and more creative and colorful educational software. A working prototype of this card was finished. A replacement card for the original TRS-80 compatible video card, software compatible to the original one, but with added color and very high resolution capabilities. was also on the drawing board. Based on a newer, slightly more flexible, version of the Asters original Motorola MC6845 video chip, the Rockwell 6545, it worked by adding a new video mode, one with the ability to reprogram an extended, (2048 characters instead of 256 characters) version of the character set, supported by an extended character memory of the video card that did not use one (8 bit) byte per character, but an 11 bit "word", so it could address each one of the available 2048 unique programmable characters. This meant it could provide a separate programmable character for all of the 1024 (64x16) or 2000 (80x25) characters on the screen. By filling the character pointer memory with values from zero to 1999 this essentially turned the text mode display into a very high resolution graphics mode, with the "font memory", acting as the high resolution Raster graphics video memory. Because the characters were 8 x 12 pixels this meant that video resolutions of 512 x 192 pixels (in 64x16 character mode), or 640 x 300 pixels (in 80x25 character mode) were created, which was quite high for the time. The "double width" mode of the TRS-80 was also supported, so 256 x 192 pixels (in 32x16 character mode), or 320 x 300 pixels (in 40x25 character mode) were also possible. The video card also supported 16 foreground and 16 background colors per character, by providing one byte per character position (2K) of "color ram". One nibble of such a byte then controlled the foreground color, and the other nibble controlled the background color, a system very similar to the ZX Spectrum, in fact in the 256x192 mode the display mode was virtually identical to the video of the ZX Spectrum. The color memory was also available in the "normal" TRS-80 and CP/M text modes, which meant that existing TRS-80 and CP/M software could be easily modified to add color. This video card would also support fast scrolling of high resolution color screens for games, because it had the indirection of the character pointers, so it was possible to quickly scroll the high resolution display, (or use other effects) by simply manipulating the 1920/1024 bytes of text video instead of the 24,576 bytes of high-resolution video memory. A hard disk interface was also in the works, which would, add a SCSI interface, and the necessary software. A working prototype was developed that added a 40MB hard disk. On the software front, work was being done to implement the replacement for the aging "user interface" of CP/M, (the Command Console Processor CCP) with the more modern ZCPR. Finally a replacement for the aging Z80 processor was being developed in the form of an Intel 8086 board, and additional 512K 16 bit memory boards. Such replacements of CPU and memory system components were possible because the Aster CT-80 was designed to use a backplane that was designed to support both 8 and 16 bit processors, and used a modular Eurocard based design with slots to spare for expansion. In theory the system could support the Z80 and the 8086 simultaneously. Plans were formulated to support CP/M-86 and even MS-DOS. Unfortunately none of these extensions to the system became available because the company folded before any of them could be released. External links Pictures of the Aster CT-80 model one from a Spanish computer museum, the educational model with an opening for a cassette player is the one on the right A picture of the Aster CT-80 model two used for a business application A picture of the Aster CT-80 model three without cover (Computermuseumgroningen does not have this item anymore) Preliminary manual for the Aster CT-80 (in dutch) Notes Z80-based home computers Home computers Personal computers TRS-80

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https://en.wikipedia.org/wiki/Atari%20ST

Atari ST

The Atari ST is a line of personal computers from Atari Corporation and the successor to the Atari 8-bit family. The initial model, the Atari 520ST, had limited release in April–June 1985 and was widely available in July. It was the first personal computer with a bitmapped color GUI, using a version of Digital Research's GEM from February 1985. The Atari 1040ST, released in 1986 with 1 MB of RAM, was the first home computer with a cost-per-kilobyte of less than US$1. After Jack Tramiel purchased the assets of the Atari, Inc. consumer division to create Atari Corporation, the 520ST was designed in five months by a small team led by Shiraz Shivji. Alongside the Macintosh, Amiga, Apple IIGS, and Acorn Archimedes, the ST is part of a mid-1980s generation of computers with 16- or 32-bit processors, 256 KB or more of RAM, and mouse-controlled graphical user interfaces. "ST" officially stands for "Sixteen/Thirty-two", referring to the Motorola 68000's 16-bit external bus and 32-bit internals. The ST was sold with either Atari's color monitor or less expensive monochrome monitor. Color graphics modes are available only on the former while the highest-resolution mode requires the monochrome monitor. Some models can display the color modes on a TV. In Germany and some other markets, the ST gained a foothold for CAD and desktop publishing. With built-in MIDI ports, it was popular for music sequencing and as a controller of musical instruments among amateur and professional musicians. The primary competitor of the Atari ST was the Amiga from Commodore. The 520ST and 1040ST were followed by the Mega series, the STE, and the portable STacy. In the early 1990s, Atari released three final evolutions of the ST with significant technical differences from the original models: TT030 (1990), Mega STE (1991), and Falcon (1992). Atari discontinued the entire ST computer line in 1993, shifting the company's focus to the Jaguar video game console. Development The Atari ST was born from the rivalry between home computer makers Atari, Inc. and Commodore International. Jay Miner, one of the designers of the custom chips in the Atari 2600 and Atari 8-bit family, tried to convince Atari management to create a new chipset for a video game console and computer. When his idea was rejected, he left Atari to form a small think tank called Hi-Toro in 1982 and began designing the new "Lorraine" chipset. Amiga ran out of capital to complete Lorraine's development, and Atari, by then owned by Warner Communications, paid Amiga to continue its work. In return, Atari received exclusive use of the Lorraine design for one year as a video game console. After that time, Atari had the right to add a keyboard and market the complete computer, designated the 1850XLD. Tramel Technology After leaving Commodore International in January 1984, Jack Tramiel formed Tramel (without an "i") Technology, Ltd. with his sons and other ex-Commodore employees and, in April, began planning a new computer. Interested in Atari's overseas manufacturing and worldwide distribution network, Tramiel negotiated with Warner in May and June 1984. He secured funding and bought Atari's consumer division, which included the console and home computer departments, in July. As executives and engineers left Commodore to join Tramel Technology, Commodore responded by filing lawsuits against four former engineers for infringement of trade secrets. The Tramiels did not purchase the employee contracts with the assets of Atari, Inc. and re-hired approximately 100 of the 900 former employees. Tramel Technology soon changed its name to Atari Corporation. Commodore and Amiga Amid rumors that Tramiel was negotiating to buy Atari, Amiga Corp. entered discussions with Commodore. This led to Commodore wanting to purchase Amiga Corporation outright, which Commodore believed would cancel any outstanding contracts, including Atari's. Instead of Amiga Corp. delivering Lorraine to Atari, Commodore delivered a check of $500,000 on Amiga's behalf, in effect returning the funds Atari invested in Amiga for the chipset. Tramiel countered by suing Amiga Corp. on August 13, 1984, seeking damages and an injunction to bar Amiga (and effectively Commodore) from producing anything with its technology. The lawsuit left the Amiga team in limbo during mid-1984. Commodore eventually moved forward, with plans to improve the chipset and develop an operating system. Commodore announced the Amiga 1000 with the Lorraine chipset in July 1985, but it wasn't available in quantity until 1986. The delay gave Atari time to deliver the Atari 520ST in June 1985. In March 1987, the two companies settled the dispute out of court in a closed decision. ST hardware The lead architect of the new computer project at Tramel Technology and Atari Corporation was ex-Commodore employee Shiraz Shivji, who previously worked on the Commodore 64's development. Different CPUs were investigated, including the 32-bit National Semiconductor NS32000, but engineers were disappointed with its performance, and they moved to the Motorola 68000. The Atari ST design was completed in 5 months in 1984, concluding with it being shown at the January 1985 Consumer Electronics Show. A custom sound processor called AMY had been in development at Atari, Inc. and was considered for the new ST computer design. The chip needed more time to complete, so AMY was dropped in favor of a commodity Yamaha YM2149F variant of the General Instrument AY-3-8910. Operating system Soon after the Atari buyout, Microsoft suggested to Tramiel that it could port Windows to the platform, but the delivery date was out by two years. Another possibility was Digital Research, which was working on a new GUI-based system then known as Crystal, soon to become GEM. Another option was to write a new operating system, but this was rejected as Atari management was unsure whether the company had the required expertise. Digital Research was fully committed to the Intel platform, so a team from Atari was sent to the Digital Research headquarters to work with the "Monterey Team", which comprised a mixture of Atari and Digital Research engineers. Atari's Leonard Tramiel was the Atari person overseeing "Project Jason" (also known as The Operating System) for the Atari ST series, named for designer and developer Jason Loveman. GEM is based on CP/M-68K, a direct port of CP/M to the 68000. By 1985, CP/M was becoming increasingly outdated; it did not support subdirectories, for example. Digital Research was also in the process of building GEMDOS, a disk operating system for GEM, and debated whether a port of it could be completed in time for product delivery in June. The decision was eventually taken to port it, resulting in a GEMDOS file system which became part of Atari TOS (for "The Operating System", colloquially known as the "Tramiel Operating System"). This gave the ST a fast, hierarchical file system, essential for hard drives, and provided programmers with function calls similar to MS-DOS. The Atari ST character set is based on codepage 437. Release After six months of intensive effort following Tramiel's takeover, Atari announced the 520ST at the Winter Consumer Electronics Show in Las Vegas in January 1985. InfoWorld assessed the prototypes shown at computer shows as follows:Pilot production models of the Atari machine are much slicker than the hand-built models shown at earlier computer fairs; it doesn't look like a typical Commodore 64-style, corner-cutting, low-cost Jack Tramiel product of the past.Atari unexpectedly displayed the ST at Atlanta COMDEX in May. Similarities to the original Macintosh and Tramiel's role in its development resulted in it being nicknamed "Jackintosh". Atari's rapid development of the ST amazed many, but others were skeptical, citing its "cheap" appearance, Atari's uncertain financial health, and poor relations between Tramiel-led Commodore and software developers. Atari ST print advertisements stated, "America, We Built It For You", and quoted Atari president Sam Tramiel: "We promised. We delivered. With pride, determination, and good old ATARI know how". But Atari was out of cash, Jack Tramiel admitted that sales of its 8-bit family were "very, very slow", and employees feared that he would shut the company down. In early 1985, the 520ST shipped to the press, developers, and user groups, and in early July 1985 for general retail sales. It saved the company. By November, Atari stated that more than 50 thousand 520STs had been sold, "with U.S. sales alone well into five figures". The machine had gone from concept to store shelves in a little under one year. Atari had intended to release the 130ST with 128 KB of RAM and the 260ST with 256 KB. However, the ST initially shipped without TOS in ROM and required booting TOS from floppy, taking 206 KB RAM away from applications. The 260ST was launched in Europe on a limited basis. Early models have six ROM sockets for easy upgrades to TOS. New ROMs were released a few months later and were included in new machines and as an upgrade for older machines. Atari originally intended to include GEM's GDOS (Graphical Device Operating System), which allows programs to send GEM VDI (Virtual Device Interface) commands to drivers loaded by GDOS. This allows developers to send VDI instructions to other devices simply by pointing to it. However, GDOS was not ready at the time the ST started shipping and was included in software packages and with later ST machines. Later versions of GDOS support vector fonts. A limited set of GEM fonts were included in the ROMs, including the ST's standard 8x8 pixel graphical character set. It contains four characters which can be placed together in a square, forming the face of J. R. "Bob" Dobbs (the figurehead of the Church of the SubGenius). The ST was less expensive than most contemporaries, including the Macintosh Plus, and is faster than many. Largely as a result of its price and performance factor, the ST became fairly popular, especially in Europe where foreign-exchange rates amplified prices. The company's English advertising slogan of the era was "Power Without the Price". An Atari ST and terminal emulation software was much cheaper than a Digital VT220 terminal, commonly needed by offices with central computers. By late 1985, the 520STM added an RF modulator for TV display. Industry reaction Computer Gaming World stated that Tramiel's poor pre-Atari reputation would likely make computer stores reluctant to deal with the company, hurting its distribution of the ST. One retailer said, "If you can believe Lucy when she holds the football for Charlie Brown, you can believe Jack Tramiel"; another said that because of its experience with Tramiel, "our interest in Atari is zero, zilch". Neither Atari nor Commodore could persuade large chains like ComputerLand or BusinessLand to sell its products. Observers criticized Atari's erratic discussion of its stated plans for the new computer, as it shifted between using mass merchandisers, specialty computer stores, and both. When asked at COMDEX, Atari executives could not name any computer stores that would carry the ST. After a meeting with Atari, one analyst said, "We've seen marketing strategies changed before our eyes". Tramiel's poor reputation influenced potential software developers. One said, "Dealing with Commodore is like dealing with Attila the Hun. I don't know if Tramiel will be following his old habits ... I don't see a lot of people rushing to get software on the machine." Large business-software companies like Lotus, Ashton-Tate, and Microsoft did not promise software for either the ST or Amiga, and the majority of software companies were hesitant to support another platform beyond the IBM PC, Apple, and Commodore 64. Philippe Kahn of Borland said, "These days, if I were a consumer, I'd stick with companies [such as Apple and IBM] I know will be around". At Las Vegas COMDEX in November 1985, the industry was surprised by more than 30 companies exhibiting ST software while the Amiga had almost none. After Atlanta COMDEX, The New York Times reported that "more than 100 software titles will be available for the [ST], most written by small software houses that desperately need work", and contrasted the "small, little-known companies" at Las Vegas with the larger ones like Electronic Arts and Activision, which planned Amiga applications. Trip Hawkins of Electronic Arts said, "I don't think Atari understands the software business. I'm still skeptical about its resources and its credibility." Although Michael Berlyn of Infocom promised that his company would quickly publish all of its games for the new computer, he doubted many others would soon do so. Spinnaker and Lifetree were more positive, both promising to release ST software. Spinnaker said that "Atari has a vastly improved attitude toward software developers. They are eager to give us technical support and machines". Lifetree said, "We are giving Atari high priority". Some, such as Software Publishing Corporation, were unsure of whether to develop for the ST or the Amiga. John C. Dvorak wrote that the public saw both Commodore and Atari as selling "cheap disposable" game machines, in part because of their computers' sophisticated graphics. Design The original 520ST case design was created by Ira Velinsky, Atari's chief Industrial Designer. It is wedge-shaped, with bold angular lines and a series of grilles cut into the rear for airflow. The keyboard has soft tactile feedback and rhomboid-shaped function keys across the top. It is an all-in-one unit, similar to earlier home computers like the Commodore 64, but with a larger keyboard with cursor keys and a numeric keypad. The original has an external floppy drive (SF354) and AC adapter. Starting with the 1040ST, the floppy drive and power supply are integrated into the base unit. Ports The ports on the 520ST remained largely unchanged over its history. Standard RS-232c serial port (DB25 male, operating as basic 9-conductor DTE) Centronics printer port (DB25 female, officially compliant only with the most basic unidirectional standard with a single, "Busy" input line; unofficially offering some bidirectional capabilities) Atari joystick ports (DE-9 male) for the mouse and game controllers 2 MIDI ports (5-pin DIN, "IN" and "OUT") Because of its bi-directional design, the Centronics printer port can be used for joystick input, and several games used available adaptors that used the printer socket, providing two additional 9-pin joystick ports. ST-specific Monitor port (custom 13-pin DIN, 12 of the pins in a rectangular pattern, carrying signals for both RGB and monochrome monitors, monophonic audio and, in later models, composite video) ACSI (similar to SCSI) DMA port (custom-sized 19-pin D-sub, for hard disks and laser printers, capable of up to 2 MByte/s with efficient programming) Floppy port (14-pin DIN, listed as operating at 250 kbit/s) ST cartridge port (double-sided 40-contact edge connector socket, for 128 KB ROM cartridges) Monitor The ST supports a monochrome or colour monitor. The colour hardware supports two resolutions: 320 × 200 pixels, with 16 of 512 colours; and 640 × 200, with 4 of 512 colours. The monochrome monitor was less expensive and has a single resolution of 640 × 400 at 71.25 Hz. The attached monitor determines available resolutions, so each application either supports both types of monitors or only one. Most ST games require colour with productivity software favouring the monochrome. Floppy drive Atari initially used single-sided 3.5 inch floppy disk drives that could store up to 360 KB. Later drives were double-sided and stored 720 KB. Some commercial software, particularly games, shipped by default on single-sided disks, even supplying two 360 KB floppies instead of a single double-sided one, to avoid alienating early adopters. Some software uses formats which allow the full disk to be read by double-sided drives but still lets single-sided drives access side A of the disk. Many magazine coverdisks (such as the first 30 issues of ST Format) were designed this way, as were a few games. The music in Carrier Command and the intro sequence in Populous are not accessible to single-sided drives, for example. STs with double-sided drives can read disks formatted by MS-DOS, but IBM PC compatibles can not read Atari disks because of differences in the layout of data on track 0. Later systems 1040ST Atari upgraded the basic design in 1986 with the 1040STF, stylized as 1040STF: essentially a 520ST with twice the RAM and with the power supply and a double-sided floppy drive built-in instead of external. This adds to the size of the machine, but reduces cable clutter. The joystick and mouse ports, formerly on the right side of the machine, are in a niche underneath the keyboard. An "FM" variant includes an RF modulator allowing a television to be used instead of a monitor. The trailing "F" and "FM" were often dropped in common usage. In BYTE magazine's March 1986 cover photo of the system, the name plate reads 1040STFM but in the headline and article it's simply "1040ST". The 1040ST is one of the earliest personal computers shipped with a base RAM configuration of 1 MB. With a list price of in the US, BYTE hailed it as the first computer to break the $1000 per megabyte price barrier. Compute! noted that the 1040ST is the first computer with one megabyte of RAM to sell for less than $2,500. A limited number of 1040STFs shipped with a single-sided floppy drive. Mega Initial sales were strong, especially in Europe, where Atari sold 75% of its computers. West Germany became Atari's strongest market, with small business owners using them for desktop publishing and CAD. To address this growing market segment, Atari introduced the ST1 at Comdex in 1986. Renamed to Mega, it includes a high-quality detached keyboard, a stronger case to support the weight of a monitor, and an internal bus expansion connector. An optional 20 MB hard drive can be placed below or above the main case. Initially equipped with 2 or 4 MB of RAM (a 1 MB version, the Mega 1, followed), the Mega machines can be combined with Atari laser's printer for a low-cost desktop publishing package. A custom blitter coprocessor improved some graphics performance, but was not included in all models. Developers wanting to use it had to detect its presence in their programs. Properly written applications using the GEM API automatically make use of the blitter. STE In late 1989, Atari Corporation released the 520STE and 1040STE (also written STE), enhanced version of the ST with improvements to the multimedia hardware and operating system. It features an increased color palette of 4,096 colors from the ST's 512 (though the maximum displayable palette without programming tricks is still limited to 16 in the lowest 320 × 200 resolution, and even fewer in higher resolutions), genlock support, and a blitter coprocessor (stylized as "BLiTTER") which can quickly move large blocks of data (particularly, graphics data) around in RAM. The STE is the first Atari with PCM audio; using a new chip, it added the ability to play back 8-bit (signed) samples at 6258 Hz, 12517 Hz, 25033 Hz, and even 50066 Hz, via direct memory access (DMA). The channels are arranged as either a mono track or a track of LRLRLRLR... bytes. RAM is now much more simply upgradable via SIMMs. Two enhanced joystick ports were added (two normal joysticks can be plugged into each port with an adapter), with the new connectors placed in more easily accessed locations on the side of the case. The enhanced joystick ports were re-used in the Atari Jaguar console and are compatible. The STE models initially had software and hardware conflicts resulting in some applications and video games written for the ST line being unstable or even completely unusable, primarily caused by programming direct hardware calls which bypassed the operating system. Furthermore, even having a joystick plugged in would sometimes cause strange behavior with a few applications (such as the WYSIWYG word-processor application 1st Word Plus). Very little use was made of the extra features of the STE: STE-enhanced and STE-only software was rare. The last STE machine, the Mega STE, is an STE in a grey Atari TT case that had a switchable 16 MHz, dual-bus design (16-bit external, 32-bit internal), optional Motorola 68881 FPU, built-in 1.44 MB "HD" 3-inch floppy disk drive, VME expansion slot, a network port (very similar to that used by Apple's LocalTalk) and an optional built-in 3" hard drive. It also shipped with TOS 2.00 (better support for hard drives, enhanced desktop interface, memory test, 1.44 MB floppy support, bug fixes). It was marketed as more affordable than a TT but more powerful than an ordinary ST. Atari TT In 1990, Atari released the high-end workstation-oriented Atari TT030, based on a 32 MHz Motorola 68030 processor. The "TT" name ("Thirty-two/Thirty-two") continued the nomenclature because the 68030 chip has 32-bit buses both internally and externally. Originally planned with a 68020 CPU, the TT has improved graphics and more powerful support chips. The case has a new design with an integrated hard-drive enclosure. Falcon The final model of ST computer is the Falcon030. Like the TT, it is 68030-based, at 16 MHz, but with improved video modes and an on-board Motorola 56001 audio digital signal processor. Like the Atari STE, it supports sampling frequencies above 44.1 kHz; the sampling master clock is 98340 Hz (which can be divided by a number between 2 and 16 to get the actual sampling frequencies). It can play the STE sample frequencies (up to 50066 Hz) in 8 or 16 bit, mono or stereo, all by using the same DMA interface as the STE, with a few additions. It can both play back and record samples, with 8 mono channels and 4 stereo channels, allowing musicians to use it for recording to hard drive. Although the 68030 microprocessor can use 32-bit memory, the Falcon uses a 16-bit bus, which reduces performance and cost. In another cost-reduction measure, Atari shipped the Falcon in an inexpensive case much like that of the STF and STE. Aftermarket upgrade kits allow it to be put in a desktop or rack-mount case, with the keyboard separate. Released in 1992, the Falcon was discontinued by Atari the following year. In Europe, C-Lab licensed the Falcon design from Atari and released the C-Lab Falcon Mk I, identical to Atari's Falcon except for slight modifications to the audio circuitry. The Mk II added an internal 500 MB SCSI hard disk; and the Mk X further added a desktop case. C-Lab Falcons were also imported to the US by some Atari dealers. Software As with the Atari 8-bit family of computers, software publishers attributed their reluctance to produce Atari ST products in part to—as Compute! reported in 1988—the belief in the existence of a "higher-than-normal amount of software piracy". That year, WordPerfect threatened to discontinue the Atari ST version of its word processor because the company discovered that pirate bulletin board systems (BBSs) were distributing it, causing ST-Log to warn that "we had better put a stop to piracy now ... it can have harmful effects on the longevity and health of your computer". In 1989, magazines published a letter by Gilman Louie, head of Spectrum HoloByte. He stated that he had been warned by competitors that releasing a game like Falcon on the ST would fail because BBSs would widely disseminate it. Within 30 days of releasing the non-copy protected ST version, the game was available on BBSs with maps and code wheels. Because the ST market was smaller than that for the IBM PC, it was more vulnerable to piracy which, Louie said, seemed to be better organized and more widely accepted for the ST. He reported that the Amiga version sold in six weeks twice as much as the ST version in nine weeks, and that the Mac and PC versions had four times the sales. Computer Gaming World stated "This is certainly the clearest exposition ... we have seen to date" of why software companies produced less software for the ST than for other computers. Several third-party OSes were developed for, or ported to, the Atari ST. Unix clones include Idris, Minix, and the MiNT OS which was developed specifically for the Atari ST. Audio Plenty of professional quality MIDI-related software was released. The popular Windows and Macintosh applications Cubase and Logic Pro originated on the Atari ST (the latter as Creator, Notator, Notator-SL, and Notator Logic). Another popular and powerful ST music sequencer application, KCS, contains a "Multi-Program Environment" that allows ST users to run other applications, such as the synthesizer patch editing software XoR (now known as Unisyn on the Macintosh), from within the sequencer application. Music tracker software became popular on the ST, such as the TCB Tracker, aiding the production of quality music from the Yamaha synthesizer, now called chiptunes. Due to the ST having comparatively large amounts of memory for the time, sound sampling packages became feasible. Replay Professional features a sound sampler using the ST cartridge port to read in parallel from the cartridge port from the ADC. For output of digital sound, it uses the on-board frequency output, sets it to 128 kHz (inaudible) and then modulates the amplitude of that. MasterTracks Pro originated on Macintosh, then ST, then IBM PC version. It continued on Windows and macOS, along with the original company's notation applications Encore. Applications Professional desktop publishing software includes PageStream and Calamus. Word processors include WordPerfect, Microsoft Write, AtariWorks, Signum, Script and First Word (bundled with the machine). Spreadsheets include 3D-Calc, and databases include Zoomracks. Graphics applications include NEOchrome, DEGAS & DEGAS Elite, Deluxe Paint, STAD, and Cyber Paint (which author Jim Kent would later evolve into Autodesk Animator) with advanced features such as 3D design and animation. The Spectrum 512 paint program uses rapid palette switching to expand the on-screen color palette to 512 (up to 46 colors per scan line). 3D computer graphics applications (like Cyber Studio CAD-3D, which author Tom Hudson later developed into Autodesk 3D Studio), brought 3D modelling, sculpting, scripting, and computer animation to the desktop. Video capture and editing applications use dongles connected to the cartridge port for low frame rate, mainly silent and monochrome, but progressed to sound and basic color in still frames. At the end, Spectrum 512 and CAD-3D teamed up to produce realistic 512-color textured 3D renderings, but processing was slow, and Atari's failure to deliver a machine with a math coprocessor had Hudson and Yost looking towards the PC as the future before a finished product could be delivered to the consumer. Garry Kasparov became the first chess player to register a copy of ChessBase, a popular commercial database program for storing and searching records of chess games. The first version was built for Atari ST with his collaboration in January 1987. In his autobiography Child of Change, he regards this facility as "the most important development in chess research since printing". Graphical touchscreen point of sale software for restaurants was originally developed for Atari ST by Gene Mosher under the ViewTouch copyright and trademark. Instead of using GEM, he developed a GUI and widget framework for the application using the NEOchrome paint program. Software development The 520ST was bundled with both Digital Research Logo and Atari ST BASIC. Third-party BASIC systems with better performance were eventually released: HiSoft BASIC, GFA BASIC, FaST BASIC, DBASIC, LDW BASIC, Omikron BASIC, BASIC 1000D and STOS. In the later years of the Atari ST, Omikron Basic was bundled with it in Germany. Atari's initial development kit from Atari is a computer and manuals. The cost discouraged development. The later Atari Developer's Kit consists of software and manuals for . It includes a resource kit, C compiler (first Alcyon C, then Mark Williams C), debugger, 68000 assembler, and non-disclosure agreement. The third-party Megamax C development package was . Other development tools include 68000 assemblers (MadMac from Atari, HiSoft Systems's Devpac, TurboAss, GFA-Assembler), Pascal (OSS Personal Pascal, Maxon Pascal, PurePascal), Modula-2, C compilers (Lattice C, Pure C, Megamax C, GNU C, Aztec C, AHCC), LISP, and Prolog. Games The ST had success in gaming due to the low cost, fast performance, and colorful graphics compared to contemporary PCs or 8-bit systems. ST game developers include Peter Molyneux, Doug Bell, Jeff Minter, Éric Chahi, Jez San, and David Braben. The realtime pseudo-3D role-playing video game Dungeon Master, was developed and released first on the ST, and is considered to be the best-selling software ever produced for the platform. Simulation games like Falcon and Flight Simulator II use the ST's graphics hardware, as do many arcade ports. The 1987 first person shooter, MIDI Maze, uses the MIDI ports to connect up to 16 machines for networked deathmatch play. The critically acclaimed Another World was originally released for ST and Amiga in 1991 with its engine developed on the ST and the rotoscoped animation created on the Amiga. While American developers stopped making ST games around 1991 (The Secret of Monkey Island was the last major American-coded title) it remained popular with many European developers (primarily in France and Britain) until 1993. The ST's lack of hardware scrolling meant that many games used smaller screen windows, or flick-screen gameplay instead of scrolling. Combined with sound hardware that was not considered the equal of the Amiga or Commodore 64, the machine's performance for 2D arcade games was seen as its weakest point. Games simultaneously released on the Amiga that do not use the Amiga's superior graphics and sound capabilities were often accused by video game magazines of simply being ST ports.. While the ST was often the lead machine, or jointly with the Amiga version, for the 68000 coded versions, later titles such as Lemmings, Cannon Fodder, Turrican II, Sensible Soccer, The Chaos Engine and Civilization were usually coded for the Amiga in 32 colors first and later converted down to the ST in 16 colors. Emulators Spectre GCR emulates the Macintosh. MS-DOS emulators were released in the late 1980s. PC-Ditto has a software-only version, and a hardware version that plugs into the cartridge slot or kludges internally. After running the software, an MS-DOS boot disk is required to load the system. Both run MS-DOS programs in CGA mode, though much more slowly than on an IBM PC. Other options are the PC-Speed (NEC V30), AT-Spee (Intel 80286), and ATonce-386SX (Intel 80386SX) hardware emulator boards. Music industry The ST's low cost, built-in MIDI ports, and fast, low-latency response times made it a favorite with musicians. Prominent Russian film music and song composer Aleksandr Zatsepin started using personal computers for work with Atari 1040ST and continued using Cubase and Vienna Symphonic Library. German electronic music pioneers Tangerine Dream relied heavily on the Atari ST in the studio and for live performances during the late 1980s and 1990s. The album notes for Mike Oldfield's Earth Moving state that it was recorded using an Atari ST and C-Lab MIDI software. The Fatboy Slim album You've Come a Long Way, Baby was created using an Atari ST. In the Paris performance of Jean Michel Jarre's album Waiting for Cousteau, the Paris La Défense – Une Ville En Concert, musicians have attached Atari ST machines with C-Lab Unitor software to their keyboards, as seen in the TV live show and video recordings. White Town's "Your Woman", which reached #1 in the UK singles charts, was created using an Atari ST. The Utah Saints used a 520ST and 1040ST running Cubase during the recording of both of their albums, Utah Saints and Two, with their 1040ST still occasionally used for re-recording or remixing early tracks up to 2015. Atari Teenage Riot programmed most of their music on an Atari ST, including the entire album Is This Hyperreal? (June 2011). Cabaret Voltaire founder Richard H. Kirk said in 2016 that he continues to write music on an Atari 1040ST with C-Lab. Darude used Cubase on an Atari 1040ST when he created his 2000 hit "Sandstorm". Depeche Mode used a combination of an Atari ST and Cubase in the studio during the production of Songs of Faith and Devotion in 1992. The machine is visible in the documentary included with the 2006 remaster of the album. Record producer Jimmy Hotz used an Atari ST to produce Fleetwood Mac's "Tango In The Night" album, and records for B.B. King and Dave Mason. British DJ and house producer Joey Negro. British songwriters and record producers Stock, Aitken, and Waterman. British synth pop duo Pet Shop Boys replaced their Fairlight CMI with an Atari ST, with their programmer Pete Gleadall saying "[Atari ST] was just much easier to work with". Canadian industrial band Skinny Puppy used the Atari ST with Steinberg Pro 24 software to produce several of their albums, including Rabies and The Process. A 1040ST can be seen in footage of the band jamming in their studio during The Process''' writing sessions. Technical specifications All STs are made up of both custom and commercial chips. Custom chips: ST Shifter "Video shift register chip": Enables bitmap graphics using 32 KB of contiguous memory for all resolutions. Screen address has to be a multiple of 256. ST GLU "Generalized Logic Unit": Control logic for the system used to connect the ST's chips. Not part of the data path, but needed to bridge chips with each other. ST MMU "Memory Management Unit": Provides signals needed for CPU/blitter/DMA and Shifter to access dynamic RAM. Even memory accesses are given to CPU/blitter/DMA while odd cycles are reserved for DRAM refresh or used by Shifter for displaying contents of the frame buffer. ST DMA "Direct Memory Access": Used for floppy and hard drive data transfers. Can directly access main memory in the ST. Support chips: MC6850P ACIA "Asynchronous Common Interface Adapter": Enables the ST to directly communicate with MIDI devices and keyboard (two chips used). for MIDI, for keyboard. MC68901 MFP "Multi Function Peripheral": Used for interrupt generation/control, serial and misc. control input signals. Atari TT030 has two MFP chips. WD-1772-PH "Western Digital Floppy Disk Controller": Floppy controller chip. YM2149F PSG "Programmable Sound Generator": Provides three-voice sound synthesis, also used for floppy signalling, serial control output and printer parallel port. HD6301V1 "Hitachi keyboard processor": Used for keyboard scanning and mouse/joystick ports. ST/STF/STM/STFM As originally released in the 520ST: CPU: Motorola 68000 16-/32-bit CPU @ 8 MHz. 16-bit data/32-bit internal/24-bit address. RAM: 512 KB or 1 MB Display modes (60 Hz NTSC, 50 Hz PAL, 71.2 Hz monochrome): Low resolution: 320 × 200 (16 color), palette of 512 colors Medium resolution: 640 × 200 (4 color), palette of 512 colors High resolution: 640 × 400, monochrome Sound: Yamaha YM2149 3-voice squarewave plus 1-voice white noise mono Programmable Sound Generator Drive: Single-sided 3" floppy disk drive, 360 KB capacity when formatted to standard 9 sector, 80 track layout. Ports: TV out (on ST-M and ST-FM models, NTSC or PAL standard RF modulated), MIDI in/out (with 'out-thru'), RS-232 serial, Centronics parallel (printer), monitor (RGB or Composite Video color and mono, 13-pin DIN), extra disk drive port (14-pin DIN), DMA port (ACSI port, Atari Computer System Interface) for hard disks and Atari Laser Printer (sharing RAM with computer system), joystick and mouse ports (9-pin MSX standard) Operating System: TOS v1.00 (TOS meaning The Operating System) with the Graphics Environment Manager (GEM) Very early machines have the OS on a floppy disk before a final version was burned into ROM. This version of TOS was bootstrapped from a small core boot ROM. In 1986, most production models became STFs, with an integrated single- (520STF) or double-sided (1040STF) double density floppy disk drive built-in, but no other changes. Also in 1986, the 520STM (or 520STM) added an RF Modulator for allowing the low and medium resolution color modes when connected to a TV. Later F and FM'' models of the 520 had a built-in double-sided disk drive instead of a single-sided one. STE As originally released in the 520STE/1040STE: All of the features of the 520STFM/1040STFM Extended palette of 4,096 available colors to choose from Blitter chip (stylized as BLiTTER) to copy/fill/clear large data blocks with a max write rate of 4 Mbytes/s Hardware support for horizontal and vertical fine scrolling and split screen (using the Shifter video chip) DMA sound chip with 2-channels stereo 8-bit PCM sound at 6.25/12.5/25/50 kHz and stereo RCA audio-out jacks (using enhancements to the Shifter video chip to support audio shifting) National LMC 1992 audio controller chip, allowing adjustable left/right/master volume and bass and treble EQ via a Microwire interface Memory: 30-pin SIMM memory slots (SIPP packages in earliest versions) allowing upgrades up to 4 MB Allowable memory sizes including only 0.5, 1.0, 2.0, 2.5 and 4.0 MB due to configuration restraints (however, 2.5 MB is not officially supported and has compatibility problems). Later third-party upgrade kits allow a maximum of 14MB w/Magnum-ST, bypassing the stock MMU with a replacement unit and the additional chips on a separate board fitting over it. Ability to synchronize the video timings with an external device so that a video Genlock device can be used without having to make any modifications to computer's hardware Analogue joypad ports (2), with support for devices such as paddles and light pens in addition to joysticks/joypads. The Atari Jaguar joypads and Power Pad joypads (gray version of Jaguar joypads marketed for the STE and Falcon) can be used without an adapter. Two standard Atari-style digital joysticks could be plugged into each analogue port with an adapter. TOS 1.06 (also known as TOS 1.6) or TOS 1.62 (which fixed some major backwards-compatibility bugs in TOS 1.6) in two socketed 128 KB ROM chips. Socketed PLCC 68000 CPU Models The members of the ST family are listed below, in roughly chronological order: 520ST original model with 512 KB RAM, external power supply, no floppy disk drive. The early models had only a bootstrap ROM and TOS had to be loaded from disk. 520ST+ same as the original model 520ST, but with 1 MB of RAM, 260ST originally intended to be a 256 KB variant, but actually sold in small quantities in Europe with 512 KB. Used after the release of the 520ST+ to differentiate the cheaper 512 KB models from the 1  MB models. Because the early 520STs were sold with TOS on disk, which used up 192 KB of RAM, the machine only had around 256 KB left. 520STM a 520ST with a built-in modulator for TV output and 512 KB RAM. 520STFM a 520STM with a redesigned motherboard in a larger case with a built-in floppy disk drive (in some cases a single-sided drive only), and 512 KB RAM. 520STF a 520STFM without RF modulator 1040STF a 520STFM with 1 MB of RAM and a built-in double-sided floppy disk drive, but without RF modulator 1040STFM a 520STFM with 1 MB of RAM and a built-in double-sided floppy disk drive with RF modulator Mega ST (MEGA 1, MEGA 2, MEGA 4) redesigned motherboard with 1, 2 or 4 MB of RAM, respectively, in a much improved "pizza box" case with a detached keyboard. All MEGA mainboards have a PLCC socket for the BLiTTER chip and some early models did not include the BLiTTER chip. They also included a real-time clock and internal expansion connector. Some early MEGA 2 had a MEGA 4 mainboard with half of the memory chip places unpopulated and the MEGA 2 can be upgraded by adding the additional DRAM chips and some resistors for the control lines. The MEGA 1 mainboards had a redesigned memory chip area and could not be upgraded in this way as there are only places for the 1 MByte DRAM chips. 520STE and 1040STE a 520STFM/1040STFM with enhanced sound, a BLiTTER chip, and a 4096-color palette, in the older 1040-style all-in-one case Mega STE same hardware as 1040STE except for a faster 16 MHz processor with 16K cache, an onboard SCSI controller, additional faster RS232 port, VME expansion port, in an ST gray version of the TT case STacy a portable (but definitely not laptop) version of the ST with the complete ST keyboard, an LCD screen simulating 640x400 hi-res, and a mini-trackball intended mostly for travelers and musicians because of the backlit screen and its built-in midi ports. Originally designed to operate on 12 standard C cell flashlight batteries for portability, when Atari finally realized how quickly the machine would use up a set of batteries (especially when rechargeable batteries of the time supplied insufficient power compared to the intended alkalines), they simply glued the lid of the battery compartment shut. ST BOOK a later portable ST, more portable than the STacy, but sacrificing several features in order to achieve this, notably the backlight and internal floppy disk drive. Files were meant to be stored on a small amount (one megabyte) of internal flash memory 'on the road' and transferred using serial or parallel links, memory flashcards or external (and externally powered) floppy disk to a desktop ST once back indoors. The screen is highly reflective for the time, but still hard to use indoors or in low light, it is fixed to the 640 × 400 1-bit mono mode, and no external video port was provided. Despite its limitations, it gained some popularity, particularly amongst musicians. Unreleased The 130ST was intended to be a 128 KB variant. It was announced at the 1985 CES alongside the 520ST but never produced. The 4160STE was a 1040STE, but with 4 MB of RAM. A small quantity of development units were produced, but the system was never officially released. Atari did produce a quantity of 4160STE metallic case badges which found their way to dealers, so it's not uncommon to find one attached to systems which were originally 520/1040STE. No such labels were produced for the base of the systems. Related systems Atari Transputer Workstation is a standalone machine developed in conjunction with Perihelion Hardware, containing modified ST hardware and up to 17 transputers capable of massively parallel operations for tasks such as ray tracing. Clones Following Atari's departure from the computer market, both Medusa Computer Systems and Milan Computer manufactured Atari Falcon/TT-compatible machines with 68040 and 68060 processors. The FireBee is an Atari ST/TT clone based on the Coldfire processor. The GE-Soft Eagle is a 32 MHz TT clone. Peripherals SF354: Single-sided double-density 3-inch floppy drive (360 KB) with external power supply SF314: Double-sided double-density 3-inch floppy drive (720 KB) with external power supply PS3000: Combined 12-inch color monitor and 360k 3-inch floppy drive (SF354). Speaker. Manufactured by JVC in limited quantity (≈1000), only a few working models remain. SM124: Monochrome monitor, 12-inch screen, 640 × 400 pixels, 70 Hz refresh SM125: Monochrome monitor, 12-inch screen, up/down/sideways swivel stand, speaker, 640x400 pixels, 70 Hz refresh SM147: Monochrome monitor, 14-inch screen, no speaker, replacement for SM124 SC1224: Color monitor, 12-inch screen, 640 × 200 pixels plus speaker SC1425: Color monitor, 14-inch screen, One speaker on the left of screen, a jack to plug ear-listeners SC1435: Color monitor, 14-inch screen, stereo speakers, replacement for SC1224 (rebadged Magnavox 1CM135) SM195: Monochrome monitor, 19-inch screen for TT030. 1280 × 960 pixels. 70 Hz refresh SH204: External hard drive, 20 MB MFM drive, "shoe box" case made of metal SH205: External hard drive, Mega ST matching case, 20 MB MFM 3.5-inch (Tandon TM262) or 5.25-inch (Segate ST225) drive with ST506 interface (became later the Megafile 20) Megafile 20, 30, 60: External hard drive, Mega ST matching case, ACSI bus; Megafile 30 and 60 had a 5.25-inch RLL (often a Seagate ST238R 30 MByte or Seagate ST277R 60 MByte drive) with ST506 interface Megafile 44: Removable cartridge drive, ACSI bus, Mega ST matching case SLM804: Laser printer, connected through ACSI DMA port, used ST's memory and processor to build pages for printing SLM605: Laser printer, connected through ACSI DMA port, smaller than SLM804. See also Bitstream Speedo Fonts – the fonts included in the Atari ST References External links "The little green desktop" Atarimania: Atari ST software preservation project Atari ST Computer Systems, Peripherals and Prototypes BYTE Magazine September 1986, Atari ST Software Development 68000-based home computers All-in-one desktop computers Atari ST Home computers Products introduced in 1985

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https://en.wikipedia.org/wiki/Aaliyah

Aaliyah

Aaliyah Dana Haughton ( ; January 16, 1979 – August 25, 2001) was an American singer and actress. She has been credited with helping to redefine contemporary R&B, pop, and hip hop, earning her the nicknames the "Princess of R&B" and "Queen of Urban Pop". Born in Brooklyn and raised in Detroit, she first gained recognition at the age of 10, when she appeared on the television show Star Search and performed in concert alongside Gladys Knight. At the age of 12, Aaliyah signed with Jive Records and her uncle Barry Hankerson's Blackground Records. Hankerson introduced her to R. Kelly, who became her mentor, as well as lead songwriter and producer of her debut album, Age Ain't Nothing but a Number. The album sold three million copies in the United States and was certified double platinum by the Recording Industry Association of America (RIAA). After allegations of an illegal marriage with Kelly, Aaliyah ended her contract with Jive and signed with Atlantic Records. Aaliyah worked with record producers Timbaland and Missy Elliott for her second album, One in a Million, which sold three million copies in the United States and more than eight million copies worldwide. In 2000, Aaliyah appeared in her first film, Romeo Must Die. She contributed to the film's soundtrack, which spawned the single "Try Again". The song topped the Billboard Hot 100 solely on airplay, making Aaliyah the first artist in Billboard history to achieve this goal. After completing Romeo Must Die, Aaliyah filmed her role in Queen of the Damned, and released, in 2001, her third and final album Aaliyah, which topped the Billboard 200. On August 25, 2001, Aaliyah was killed in an airplane accident in the Bahamas at the age of 22 along with eight other passengers when the overloaded aircraft, which she was traveling in, crashed shortly after takeoff. The pilot was later found to have traces of cocaine and alcohol in his body and was not qualified to fly the aircraft designated for the flight. Aaliyah's family later filed a wrongful death lawsuit against the aircraft's operator, Blackhawk International Airways, which was settled out of court. In the decades since her death, Aaliyah's music has continued to achieve commercial success, aided by several posthumous releases. She has sold 8.1 million albums in the US and an estimated 24 to 32 million albums worldwide. Billboard lists her as the tenth most successful female R&B artist of the past 25 years, and the 27th most successful in history. Her accolades include three American Music Awards and two MTV VMAs, along with five Grammy Award nominations. Early life Aaliyah Dana Haughton was born on January 16, 1979, in Brooklyn, New York, the younger child of Diane and Michael "Miguel" Haughton, a warehouse worker. She was of African-American descent. Her name is the feminine form of the Arabic "Ali", meaning "highest, most exalted one, the best." Aaliyah was fond of her name, calling it "beautiful" and saying she was "very proud of it" and strove to live up to her name every day. When she was five years old, her family moved to Detroit, Michigan, where she was raised along with her older brother, Rashad. In Detroit, her father began working in the warehouse business, one of his brother-in-law Barry Hankerson's widening interests. Her mother stayed home and raised she and her brother. At an early age her mother enrolled her in voice lessons. Eventually, she started performing at weddings, church choir, and charity events. Aaliyah attended a Catholic school, Gesu Elementary, where in first grade she was cast in the stage play Annie, which inspired her to become an entertainer. Aaliyah's mother was a vocalist, and her uncle Hankerson was an entertainment lawyer who had been married to Gladys Knight. As a child, Aaliyah traveled with Knight and worked with an agent in New York to audition for commercials and television programs, including Family Matters. After failing to land a role on the show she continued her acting through the Gesu Players. In 1989 at age ten she appeared on Star Search, where she performed "My Funny Valentine". Aaliyah chose to begin auditioning. Her mother made the decision to drop her surname. She auditioned for several record labels and at age 11 appeared in concerts alongside Knight. During her childhood, she had several pet animals including ducks, snakes and iguanas. Her cousin Jomo had a pet alligator, which Aaliyah felt was too much, remarking, "that was something I wasn't going to stroke." Education When she was growing up, Aaliyah attended Detroit schools and believed she was well-liked, but got teased for her short stature. She recalled coming into her own before age 15 and came to love her height. Her mother told her to be happy she was small and complimented her. Other children disliked Aaliyah, but she did not stay focused on them. "You always have to deal with people who are jealous, but there were so few it didn't even matter. The majority of kids supported me, which was wonderful. When it comes to dealing with negative people, I just let it in one ear and out the other. Those people were invisible to me." Even in her adult life, she considered herself small. She had "learned to accept and love" herself and added: "the most important thing is to think highly of yourself because if you don't, no one else will". During her audition for acceptance to the Detroit High School for the Fine and Performing Arts, Aaliyah sang the song "Ave Maria" in its entirety in the Italian language. Aaliyah, who maintained a perfect 4.0 grade-point average when graduating from high school, felt education was important. She saw fit to keep her grades up despite the pressures and time constraints brought on her during the early parts of her career. She called herself a perfectionist and recalled always being a good student. Aaliyah reflected: "I always wanted to maintain that, even in high school when I first started to travel. I wanted to keep that 4.0. Being in the industry, you know, I don't want kids to think, 'I can just sing and forget about school.' I think it's very important to have an education, and even more important to have something to fall back on." She did this in her own life, as she planned to "fall back on" another part of the entertainment industry. She believed that she could teach music history or open her own school to teach that or drama if she did not make a living as a recording artist because, as she reasoned, "when you pick a career it has to be something you love". Career 1991–1995: Age Ain't Nothing but a Number After Hankerson signed a distribution deal with Jive Records, he signed Aaliyah to his Blackground Records label at the age of 12. Hankerson later introduced her to recording artist and producer R. Kelly, who became Aaliyah's mentor, as well as lead songwriter and producer of her first album, recorded when she was 14. Aaliyah's debut album, Age Ain't Nothing but a Number, was released under her mononym "Aaliyah", by Jive and Blackground Records on May 24, 1994; it debuted at number 24 on the Billboard 200 chart, selling 38,000 copies in its first week. It peaked at number 18 on the Billboard 200 and it was certified two times Platinum by the RIAA. To date the album has sold over 3 million copies in the US. In Canada, the album was certified gold by Music Canada for 50,000 copies in shipments. In 2014, Vibe magazine estimated that the album had sold six million copies globally. Upon its release, Age Ain't Nothing But a Number received generally favorable reviews from music critics. Some writers noted that Aaliyah's "silky vocals" and "sultry voice" blended with Kelly's new jack swing helped define R&B in the 1990s. Her sound was also compared to that of female quartet En Vogue. Christopher John Farley of Time magazine called the album a "beautifully restrained work", noting that Aaliyah's "girlish, breathy vocals rode calmly on R. Kelly's rough beats". Stephen Thomas Erlewine of AllMusic felt that the album had its "share of filler", but described the singles as "slyly seductive". He also wrote that the songs on the album were "frequently better" than that of Kelly's second studio album, 12 Play. The single "At Your Best (You Are Love)" was criticized by Billboard for being out of place on the album and for its length. Aaliyah's debut single, "Back & Forth", peaked at number 5 on the Hot 100 and topped the Hot R&B/Hip-Hop Songs chart for three weeks. Two more singles charted: a cover of the Isley Brothers' "At Your Best (You Are Love)" peaked at number 6 on the Billboard Hot 100, and the album's title track, "Age Ain't Nothing but a Number", peaked at number 75. Additionally, she released "The Thing I Like" as part of the soundtrack to the 1994 film A Low Down Dirty Shame. 1996–2000: One in a Million and Romeo Must Die In 1996, Aaliyah left Jive Records and signed with Atlantic Records. She worked with record producers Timbaland and Missy Elliott, who contributed to her second studio album, One in a Million. Elliott recalled Timbaland and herself being nervous to work with Aaliyah, since Aaliyah had already released her successful debut album while Elliott and Timbaland were just starting out. Elliott also feared she would be a diva, but reflected that Aaliyah "came in and was so warming; she made us immediately feel like family." The album yielded the lead single "If Your Girl Only Knew", which peaked at number 11 on the Billboard Hot 100 and topped the Billboard Hot R&B/Hip-Hop Songs for two weeks. It also generated the singles "Hot Like Fire" and "4 Page Letter". One in a Million peaked at number 18 on the Billboard 200, and was certified double platinum by the RIAA on June 16, 1997, denoting shipments of two million copies. The album went on to sell 3 million copies in the US and over eight million copies worldwide. The year after her album was released, Aaliyah was featured on Timbaland & Magoo's debut single, "Up Jumps da Boogie". In 1997 Aaliyah graduated with a 4.0 GPA from the Detroit High School for the Fine and Performing Arts, where she majored in drama. The same year, she began her acting career, playing herself in the police drama television series New York Undercover. During this time, Aaliyah participated in the Children's Benefit Concert, a charity concert at the Beacon Theatre in New York. She also became the spokesperson for the Tommy Hilfiger Corporation. During her campaign with Tommy Hilfiger, the company sold over 2,400 pairs of the red, white and blue baggy jeans she wore in their advertisements. In December 1997, she performed the Christmas carol "What Child Is This?" at the annual Christmas in Washington television special. She also contributed to the soundtrack album for the animated film Anastasia, performing a cover version of "Journey to the Past" that earned songwriters Lynn Ahrens and Stephen Flaherty a nomination for the Academy Award for Best Original Song. Aaliyah performed the song at the 1998 Academy Awards ceremony, becoming the youngest singer to perform at the event. Also in 1998, she released the song "Are You That Somebody?" which was featured on the Dr. Dolittle soundtrack. The song peaked at number 21 on the Billboard Hot 100 and earned Aaliyah her first Grammy Award nomination. In 1999, Aaliyah landed her first big-screen acting role in Romeo Must Die. She starred opposite martial artist Jet Li, playing a couple who fall in love amid their warring families. Released on March 24, 2000, the movie grossed US$18.6 million in its first weekend, ranking number two at the box office. Aaliyah purposely stayed away from reviews of the film to "make it easier on" herself, but she heard "that people were able to get into me, which is what I wanted." In contrast, some critics felt there was no chemistry between her and Jet Li, as well as viewing the film as too simplistic. This was echoed by Elvis Mitchell of The New York Times, who wrote that while Aaliyah was "a natural" and the film was conceived as a spotlight for both her and Li, "they have so little chemistry together you'd think they're putting out a fire instead of shooting off sparks. In addition to acting, Aaliyah served as an executive producer of the film's soundtrack, for which she contributed four songs. "Try Again" was released as a single from the soundtrack; the song topped the Billboard Hot 100, making Aaliyah the first artist to top the chart based solely on airplay; this led the song to be released in a 12-inch vinyl and 7-inch single. The music video won the Best Female Video and Best Video from a Film awards at the 2000 MTV Video Music Awards. It also earned her a Grammy Award nomination for Best Female R&B Vocalist. The soundtrack went on to sell 1.5 million copies in the United States. 2001: Aaliyah and Queen of the Damned After completing Romeo Must Die, Aaliyah began to work on her second film, Queen of the Damned. She played the role of an ancient vampire, Queen Akasha, which she described as a "manipulative, crazy, sexual being". Filming both Romeo Must Die and Queen of the Damned delayed the release of the album. Aaliyah had not intended for her albums to have such a gap between them. "I wanted to take a break after One in a Million to just relax, think about how I wanted to approach the next album. Then, when I was ready to start back up, "Romeo" happened, and so I had to take another break and do that film and then do the soundtrack, then promote it. The break turned into a longer break than I anticipated." Ultimately, she filmed Queen of the Damned and recorded her third album at the same time so that it could be released in 2001. Aaliyah enjoyed balancing her singing and acting careers. Though she called music a "first" for her, she also had been acting since she was young and had wanted to begin acting "at some point in my career", but "wanted it to be the right time and the right vehicle" and felt Romeo Must Die "was it". Connie Johnson of the Los Angeles Times argued that Aaliyah having to focus on her film career may have caused her to not give the album "the attention it merited." During the recording stages for the album, Aaliyah's publicist disclosed that the album's release date was most likely in October 2000. Eventually, she finished recording the album in March 2001; after a year of recording tracks that began in March of the previous year. Aaliyah was released five years after One in a Million on July 17, 2001, and it debuted at number two on the Billboard 200, selling 187,000 copies in its first week. The first single from the album, "We Need a Resolution", peaked at number 59 on the Billboard Hot 100. The week after Aaliyah's death, her third album rose from number 19 to number 1 on the Billboard 200. "Rock the Boat" was released as a posthumous single. The music video premiered on BET's Access Granted, and it became the most viewed and highest rated episode in the history of the show. The song peaked at number 14 on the Billboard Hot 100. Promotional posters for Aaliyah that had been put up in major cities such as New York and Los Angeles became makeshift memorials for grieving fans. In February 2002, the album was certified double Platinum by the RIAA. "More than a Woman" and "I Care 4 U" were released as posthumous singles and peaked within the top 25 of the Billboard Hot 100. "More than a Woman" reached number one on the UK singles chart making Aaliyah the first female deceased artist to reach number one on the UK singles chart. "More than a Woman" was replaced by George Harrison's "My Sweet Lord" which is the only time in the UK singles chart's history when a dead artist has replaced another dead artist at number one. Aaliyah was signed to appear in several future films, including a romantic film titled Some Kind of Blue, and a Whitney Houston–produced remake of the 1976 film Sparkle. Houston recalled Aaliyah being "so enthusiastic" about the film; the project was shelved after she died. Before her death Aaliyah filmed some scenes for the sequels of The Matrix as the character Zee. A portion of her role in The Matrix Reloaded was filmed; these unused scenes were included in the tribute section of the Matrix Ultimate Collection series. Artistry Voice Aaliyah had the vocal range of a soprano, and with the release of her debut album Age Ain't Nothing but a Number, writer Dimitri Ehrlich of Entertainment Weekly compared her style and sound to R&B group En Vogue. Ehrlich also expressed that Aaliyah's "silky vocals are more agile than those of self-proclaimed queen of hip-hop soul Mary J. Blige." In her review for Aaliyah's second studio album One in a Million Vibe magazine, music critic Dream Hampton said that Aaliyah's "deliciously feline" voice has the same "pop appeal" as Janet Jackson's. According to Rolling Stone "the most remarkable thing about Aaliyah's voice, besides its flexibility and crisp range, was its almost preternatural poise — she always seemed to be holding her power in reserve, to know every side of the scenarios she described". While, Siân Pattenden from Mixmag stated that, "She doesn't try to toss the caber with vocal athleticism. There's no shouting, screeching, wailing or jazz-style noodling. Everything is underplayed: Ms Haughton's range is displayed by the slightest high-octave backing and tiniest harmonies". Aaliyah herself said her vocal styling consisted of her singing softly while utilizing her falsetto. She further explained saying, "My signature style is breathy, tone-y, airy. It's simple but I can ride a crazy track." Although she frequently sang in a softer tone, there were moments when she utilized other facets of her voice. "Never Givin' Up" (1996) and "The One I Gave My Heart To" (1997) are a few stand-out vocal highlights. Daryl Simmons the producer of "The One I Gave My Heart To", recalled Aaliyah doing opera vocal warm-up exercises in preparation for the songs recording. While commenting on her doing opera vocal warm ups Simmons mentioned, "It was the furthest thing I would have ever thought that she could do. It just blew my mind." The song's writer, Diane Warren praised her vocals on the song, saying: "It showed her vocal range, and I know a couple of people thought she wouldn't be able to do that song. I thought, 'No, she'll be able to do that." Variety echoed a similar sentiment as warren, saying "The One I Gave My Heart To" "showcased Aaliyah's ability to hit higher notes." Discussing her approach on "Never Givin' Up" producer Craig King said, "lyrically and vocally she just took you to places that you didn't know she could go". Musical style From the very beginning, she opted "for an edgier, more mature sound", and her songs were often uptempo and at the same time often dark, revolving around "matters of the heart". She "easily straddled the hip-hop and pop worlds, never projecting the frilliness of her ingénue peers". In 2001, Aaliyah called her sound "street but sweet", pairing feminine vocals with a gritty urban rhythm track. In another interview she further spoke about her artistry, saying, "I love to fuse other types of music with my own". She explored a wide range of genres such as R&B, pop, hip hop, funk, soul, and dance-pop. Discussing her lyrical content in The New Rolling Stone Album Guide (2004), Keith Harris said "When it came to sexual availability, she was between En Vogue maliciously taunting 'You're never gonna get it' and Tweet blankly cooing 'Oops, there goes my shirt.'" Lyrically, "Her first two albums carefully toed the line between adolescence and adulthood, displaying a woman exploring the terrain of love, trust, and lust; one who exuded a playful innocence while hinting at a more sultry side." Aaliyah did not usually write her own lyrics. The only time she had a hand in writing is on the song "Death of a Playa" from the "Hot Like Fire" single (1997). She co-wrote that song with her brother Rashad Haughton, and "it reflects Aaliyah's dark perspective on romance". Of her role in crafting her music, Aaliyah said, "I like to have the final say but I was trained as a singer, actress and dancer, the interpreter, bringing other people's words to life. I need the songs to reflect me in one way or another". After her R. Kelly–produced debut album, Aaliyah worked with Timbaland and Missy Elliott, whose productions were more electronic. The duo "mixed choppy, nervous rhythms over loops of computer-generated backing tracks, and incorporating harmonies which – within the genre's limited horizons – seemed daring". They also created, the "Freeze-and-stop style of singing on top of bass-heavy instrumentals" which became Aaliyah's signature style. Aaliyah's songs have been said to have "crisp production" and "staccato arrangements" that "extend genre boundaries" while containing "old-school" soul music. Kelefah Sanneh of The New York Times called her "a digital diva who wove a spell with ones and zeroes", and writes that her songs comprised "simple vocal riffs, repeated and refracted to echo the manipulated loops that create digital rhythm", as Timbaland's "computer-programmed beats fitted perfectly with her cool, breathy voice to create a new kind of electronic music." She released "musically risky singles into a notoriously fickle pop market", without being "concerned about conforming to the stereotypes of the marketplace". Her songs "gracefully walk a line between commerciality and experimentation". Reviewing her album, British publication NME felt that Aaliyah's "radical" third album was "intended to consolidate her position as U.S. R&B's most experimental artist". As her albums progressed, writers felt that Aaliyah matured, calling her progress a "near-flawless declaration of strength and independence". ABC News noted that her music was "evolving from the punchy pop-influenced hip hop and R&B to a more mature, introspective sound", on her third album. Stephen Thomas Erlewine of AllMusic described her album Aaliyah as "a statement of maturity and a stunning artistic leap forward", and called it one of the strongest urban soul records of its time. She portrayed "unfamiliar sounds, styles and emotions", but managed to please critics with the contemporary sound it contained. Ernest Hardy of Rolling Stone felt that Aaliyah was displaying stronger technique, giving her best vocal performances. Altogether, Aaliyah's music can be described as alternative R&B, progressive soul, and neo soul, according to Time Farley. Influences As an artist, Aaliyah said she was inspired by a number of performers. These include Michael Jackson, Stevie Wonder, Sade, Trent Reznor of Nine Inch Nails, Korn, Donnie Hathaway, Johnny Mathis, Janet Jackson, Whitney Houston, and Barbra Streisand. Aaliyah said that Michael Jackson's Thriller was her "favorite album" and that "nothing will ever top Thriller." She said she had always wanted to work with Janet Jackson, to whom she had often been compared, saying, "I admire her a great deal. She's a total performer ... I'd love to do a duet with Janet Jackson." Jackson reciprocated Aaliyah's affection, saying, "I've loved her from the beginning because she always comes out and does something different, musically." Jackson also said she would have enjoyed collaborating with Aaliyah. Music videos According to director Paul Hunter from day one, "Aaliyah wanted her videos to stand out from clips by other R&B singers". He stated, "You can watch programming all day and see a certain type of video by female artists, "Then when one of hers comes on it's something special, something different to look at. That's what she was about." Christopher John Farley from Time stated that Aaliyah's "videos, for the most part, are about mood, not about storylines... Her videos are usually lushly shot and infused with sexual tension, though not in overt and obvious ways". Alisha Acquaye from Teen Vogue felt that, "There's much to gather while watching an Aaliyah music video" in fact, she thinks that watching them is "actually an understatement". Acquaye further explained, "There's a state of hypnosis you submit to as she envelops you through sight and sound, tugging at your heartstrings. Between a sequence of sensual, strong movements, infectious instrumentals, and intuitive lyrics that spark emotions of desire, sex, and empowerment, you are enraptured in Aaliyah's physical presence". Most of Aaliyah's videos included dance routines. While discussing her video choreography Billboard mentioned that she "coined the smooth choreography and tomboyish style that would inspire [R&B]'s future generations for years to come". Vibe praised several videos saying, "Looking back on her videos like "Try Again" and "Are You That Somebody," Aaliyah's talent in all of those techniques of dancing are apparent, as she's able to hit every syncopated word and beat with ease as if she's moving on air". Kyann-Sian Williams from NME named "Are You That Somebody?" as a visual that, "pushed the boundaries when it came to dance breaks in music videos". Williams declared, "Until that time, dance breaks were usually reserved for boybands like *NSync and the Backstreet Boys, but Aaliyah claimed it for R&B stars too". Public image Aaliyah focused on her public image while protecting her private life. She felt that it was "important ... to differentiate yourself from the rest of the pack". USA Today said, "Her slinky vocal style and eye-popping videos made her a crossover star, while her persistent protection of her privacy added an air of intrigue about her". According to Aaliyah, "I put a lot of pressure on myself to be true to myself and not let anything else influence me to do what someone else is doing. Being a little edgy and sexy is me. My image isn't a put-on. I'm happy to put over that dark edge in my videos, because it's always been there. I used to wear my sunglasses or have my hair over one eye a lot more when I was younger. [Now] I'm happy with all aspects of myself." She often wore baggy clothes and sunglasses, stating that she wanted to be herself. Aaliyah also wore black clothing, starting a trend for similar fashion among women in United States and Japan. In 1998, she hired a personal trainer to keep in shape, and exercised five days a week and ate diet foods. As her career progressed, "she went through so many fashion revamps". For example, When she changed her hairstyle, Aaliyah took her mother's advice and covered her left eye, much like Veronica Lake. The look has become known as her signature and been referred to as fusion of "unnerving emotional honesty" and "a sense of mystique". In regards to her fashion choices, writer Jeff Lorez described her as a "model of understatement". According to Lorez, " She's beautiful, but hardly in a high-gloss, supermodel way—more like a really good-looking girl next door. And rather than bling-blinging her ice in a ghetto-fabulous manner befitting her Trumped-up surroundings, she blings on the down-low: A subtle bracelet here, a winking pendant there, offset by her simple black jeans and matching sweater. Trés cool". Former TRL host Carson Daly said that she was "cutting edge, always one step ahead of the curve and that the TRL audience looks to her to figure out what's hot and what's new". Aaliyah was often praised for her "clean-cut image" and "moral values". Robert Christgau of The Village Voice wrote of Aaliyah's artistry and image, "she was lithe and dulcet in a way that signified neither jailbait nor hottie—an ingenue whose selling point was sincerity, not innocence and the obverse it implies." Emil Wilbekin, told CNN: "Aaliyah is an excellent role model because she started her career in the public eye at age 15 with a gold album, Age Ain't Nothing but a Number. And then her second album, One in a Million went double platinum. She had the leading role in Romeo Must Die, which was a box office success. She's won numerous awards, several MTV music video awards, and aside from her professional successes, many of her lyrics are very inspirational and uplifting. She also carried herself in a very professional manner. She was well-spoken. She was beautiful, but she didn't use her beauty to sell her music. She used her talent. Many young hip-hop fans greatly admire her." She was also seen by others as a sex symbol and didn't have a problem with being considered one. "I know that people think I'm sexy and I am looked at as that, and it is cool with me," she stated. "It's wonderful to have sex appeal. If you embrace it, it can be a very beautiful thing. I am totally cool with that. Definitely. I see myself as sexy. If you are comfortable with it, it can be very classy and it can be very appealing." Aaliyah also felt though her image was "risque and sexy", it was important to remain respectable because she wanted to make songs that everyone could relate to without it being vulgar. When she participated in fashion designer Tommy Hilfiger's All America Tour Tommy Jean ads, she wore boxer shorts, baggy jeans and a tube top. Hilfiger's brother, Andy, called it "a whole new look" that was "classy but sexy". The single "We Need a Resolution" was argued to have transformed "the once tomboy into a sexy grown woman". Personal life Family Aaliyah's family played a major role in the course of her career. Beginning in 1995, Aaliyah's father Michael Haughton served as her personal manager, and her mother assisted him. Aaliyah's brother Rashad Haughton and her cousin Jomo Hankerson were with her when she worked. After her father became ill, her brother Rashad became her manager. Aaliyah was known to have usually been accompanied by members of her family. Her brother Rashad stated that the filming of "Rock the Boat" was the only time her family was not present during a video shoot. In October 2001, Rashad said: "It really boggles everyone [that] from Day One, every single video she ever shot there's always been myself or my mother or my father there. The circumstances surrounding this last video were really strange because my mother had eye surgery and couldn't fly. That really bothered her because she always traveled. My dad had to take care of my mom at that time. And I went to Australia to visit some friends. We really couldn't understand why we weren't there. You ask yourself maybe we could have stopped it. But you can't really answer the question. There's always gonna be that question of why." Her friend Kidada Jones said in the last year of Aaliyah's life, her parents had given her more freedom and she had spoken about wanting a family. Illegal marriage With the release of Age Ain't Nothing but a Number, rumors circulated about a relationship between Aaliyah and R. Kelly, including the allegation that they had secretly married without her parents' knowledge. Vibe magazine later revealed a marriage certificate that listed the couple married on August 31, 1994, in Sheraton Gateway Suites in Rosemont, Illinois. Aaliyah, who was 15 at the time, was listed as 18 on the certificate; R. Kelly was 27. The marriage was annulled by her parents in February 1995, but the pair denied the allegations, saying that neither was married and that the certificate was a forgery. Aaliyah reportedly developed an intimate relationship with Kelly during the recording of her debut album. She told Vibe magazine in 1994 that she and Kelly would "go watch a movie" and "go eat" when she got tired and would then "come back and work". She described the relationship between her and Kelly as "rather close." In December 1994, Aaliyah told the Chicago Sun-Times that whenever she was asked about being married to Kelly, she urged them not to believe "all that mess" and that she and Kelly were "close" and "people took it the wrong way". Jamie Foster Brown in the 1994 issue of Sister 2 Sister wrote that "R. Kelly told me that he and Aaliyah got together, and it was just magic." Brown also reported hearing about a sexual relationship between them. "I've been hearing about Robert and Aaliyah for a while—that she was pregnant. Or that she was coming and going in and out of his house. People would see her walking his dog, 12 Play, with her basketball cap and sunglasses on. Every time I asked the label, they said it was platonic. But I kept hearing complaints from people about her being in the studio with all those men." Brown later added "at 15, you have all those hormones and no brains attached to them". In his 2011 book The Man Behind the Man: Looking from the Inside Out, Demetrius Smith Sr., Kelly's former tour manager, revealed that Kelly married Aaliyah after she told him that she was pregnant. In the 2019 documentary Surviving R. Kelly, Smith described how he helped Aaliyah forge the necessary documents to show she was 18 to marry Kelly. Smith also said he was "not proud" of his role in facilitating their marriage. Additionally, the documentary revealed that Jovante Cunningham, a former backup dancer, claimed to have witnessed Kelly having sex with Aaliyah on his tour bus. Aaliyah admitted in court documents that she had lied about her age. In May 1997, she filed suit in Cook County seeking to have all records of the marriage expunged because she was not old enough under state law to get married without her parents' consent. It was reported that she cut off all professional and personal ties with Kelly after the marriage was annulled and ceased contact with him. In a 2014 interview, Aaliyah's cousin Jomo Hankerson said that she "got villainized" for her relationship with Kelly and the scandal over the marriage made it difficult to find producers for her second album. "We were coming off of a multi-platinum debut album and except for a couple of relationships with Jermaine Dupri and Puffy, it was hard for us to get producers on the album." Hankerson also expressed confusion over why "they were upset" with Aaliyah given her age at the time. Aaliyah was known to avoid answering questions about Kelly after the professional split. During an interview with Christopher John Farley, she was asked whether she was still in contact with him and would ever work with him again. Farley said Aaliyah responded with a "firm, frosty 'no to both questions. Vibe magazine said Aaliyah changed the subject anytime "you bring up the marriage with her". A spokeswoman for Aaliyah said in 2000 that when "R. Kelly comes up, she doesn't even speak his name, and nobody's allowed to ask about it at all." Kelly later said that Aaliyah had opportunities to address their relationship after they separated professionally but chose not to. In 2019, Damon Dash revealed to Hip Hop Motivation that Aaliyah did not even speak of her relationship with Kelly in private; he tried multiple times to discuss it with her, but she would only say that Kelly was a "bad man". Dash said he was unable to watch Surviving R. Kelly because its interviews with visibly traumatized girls struggling to discuss their encounters with Kelly reminded him of how Aaliyah behaved when trying to recount her relationship with Kelly. Dash later appeared in Surviving R. Kelly, Part II in 2020. Other allegations were made about Kelly regarding underage girls in the years after Aaliyah's death, and their marriage was used as an example of his involvement with them. He has refused to discuss his relationship with her, citing her death. "Out of respect for her, and her mom and her dad, I will not discuss Aaliyah. That was a whole other situation, a whole other time, it was a whole other thing, and I'm sure that people also know that." In 2016, Kelly said that he was as in love with Aaliyah as he was with "anybody else." Aaliyah's mother, Diane Haughton, reflected that everything "that went wrong in her life" began with her relationship with Kelly. After the documentary Surviving R. Kelly aired in January 2019, pressure from the public using the Mute R. Kelly hashtag escalated and RCA Records dropped Kelly from the label. In February 2019, Kelly was indicted on ten counts of aggravated criminal sexual abuse. In July 2019, he was arrested on federal charges of sex crimes, human trafficking, child pornography, racketeering, and obstruction of justice. When his trial began in August 2021, Kelly faced 22 federal criminal charges that involved allegedly abusing 11 girls and women between 1994 and 2018. Aaliyah's illegal marriage to Kelly was heavily featured in the court case. On September 27, 2021, a federal court jury found Kelly guilty of nine counts including racketeering, sexual exploitation of a child, kidnapping, bribery, sex trafficking, and a violation of the Mann Act. The judge ordered that Kelly remain in custody pending sentencing, which was set for May 4, 2022. On June 29, 2022, Kelly was sentenced to 30 years in prison. Relationship with Damon Dash Aaliyah was dating the co-founder of Roc-A-Fella Records, Damon Dash, at the time of her death. Although they were not formally engaged, Dash claimed the couple had planned to marry in interviews given after Aaliyah's death. In the summer of 2000, Aaliyah was introduced to Dash by his accountant and they formed a friendship. Aaliyah never publicly addressed their relationship as anything but platonic. Due to their hectic work schedules, Aaliyah and Dash were separated for long periods of time. Jay-Z mentioned Aaliyah and Dash in the remix of her song "Miss You", released in 2003. In August 2021, Dash told Entertainment Tonight Kevin Frazier, "I was reflecting [that] there hasn't been one day since she's passed, not one in the 20 years, that I haven't either heard her name, heard her record, or seen a picture of her ... Every single day she's present in my life and I feel lucky for that." Death On August 25, 2001, at 6:50 p.m. (EDT), Aaliyah and some employees of her record company boarded a twin-engine Cessna 402 light aircraft at the Marsh Harbour Airport in Abaco Islands, the Bahamas, to travel to Opa-Locka Airport in Florida after they completed filming the video for "Rock the Boat". They had a flight scheduled the next day, but with filming finishing early, Aaliyah and her entourage were eager to return to the US and decided to leave immediately. The designated airplane was smaller than the Cessna 404 on which they had originally arrived, but the whole party and all the equipment were accommodated on board. The plane crashed and caught fire shortly after takeoff, about from the end of the runway. Aaliyah and the eight others on board—pilot Luis Morales III, hair stylist Eric Forman, Anthony Dodd, security guard Scott Gallin, family friend Keith Wallace, make-up stylist Christopher Maldonado, and Blackground Records employees Douglas Kratz and Gina Smith—were killed. The passengers had grown impatient because the Cessna was supposed to arrive at 4:30 pm. EDT, but did not arrive until 6:15 pm. Charter pilot Lewis Key claimed to have overheard passengers arguing with the pilot, Morales, before takeoff, adding that Morales warned them that there was too much weight for a "safe flight". Key added: "He tried to convince them the plane was overloaded, but they insisted they had chartered the plane and they had to be in Miami Saturday night." Key indicated that Morales gave in to the passengers and that he had trouble starting one of the engines. According to findings from an inquest conducted by the coroner's office in the Bahamas, Aaliyah had "severe burns and a blow to the head" in addition to severe shock and a weak heart. The coroner theorized that she went into such a state of shock that even if she had survived the crash, her recovery would have been nearly impossible given the severity of her injuries. The bodies were taken to the morgue at Princess Margaret Hospital in Nassau, where they were kept for relatives to help identify them. Some of them were badly burned. As the subsequent investigation determined, the aircraft was overloaded by when it attempted to take off, and was carrying one more passenger than it was certified for. The National Transportation Safety Board reported, "The airplane was seen lifting off the runway, and then nose down, impacting in a marsh on the south side of the departure end of runway 27." The report indicated that the pilot was not approved to fly the plane. Morales falsely obtained his FAA license by showing hundreds of hours never flown, and he may also have falsified how many hours he had flown to get a job with his employer, Blackhawk International Airways. Additionally, toxicology tests performed on Morales revealed traces of cocaine and alcohol in his system. Funeral Aaliyah's private funeral Mass was held on August 31, 2001, at the Church of St. Ignatius Loyola in Manhattan, following a procession from the Frank E. Campbell Funeral Chapel. Her body was set in a silver-plated copper-deposit casket, which was carried in a horse-drawn, glass hearse. An estimated 800 mourners attended the procession. Among those in attendance at the private ceremony were Missy Elliott, Timbaland, Gladys Knight, Lil' Kim, and Sean Combs. After the service, 22 white doves were released to symbolize each year of her life. Aaliyah's brother Rashad delivered the eulogy and described his sister as giving him strength: "Aaliyah, you left, but I'll see you always next to me and I can see you smiling through the sunshine. When our life is over, our book is done. I hope God keeps me strong until I see her again." He read the names of the other victims of the crash and concluded by asking mourners to pray for them as well. As Diane Haughton and the mourners left, they sang Aaliyah's song "One in a Million". Posthumous releases 2001–2011: Aaliyah Memorial Fund, Queen of the Damned and compilations Immediately after Aaliyah's death, there was uncertainty over whether the music video for "Rock the Boat" would ever air. It made its world premiere on BET's Access Granted on October 9, 2001. She won two posthumous awards at the American Music Awards of 2002; Favorite Female R&B Artist and Favorite R&B/Soul Album for Aaliyah. Her second and final film, Queen of the Damned, was released in February 2002. Before its release, Aaliyah's brother, Rashad, re-dubbed some of her lines during post-production. It grossed US$15.2 million in its first weekend, ranking number one at the box office. On the first anniversary of Aaliyah's death, a candlelight vigil was held in Times Square; millions of fans observed a moment of silence; and throughout the United States, radio stations played her music in remembrance. In December 2002, a collection of previously unreleased material was released as Aaliyah's first posthumous album, I Care 4 U. A portion of the proceeds was donated to the Aaliyah Memorial Fund, a program that benefits the Revlon UCLA Women's Cancer Research Program and Harlem's Sloan Kettering Cancer Center. It debuted at number three on the US Billboard 200, selling 280,000 copies in its first week. The album's lead single, "Miss You", peaked at number three on the Billboard Hot 100 and topped the Hot R&B/Hip-Hop Songs chart for three weeks. In August of the following year, luxury fashion house Dior donated profits from sales in honor of Aaliyah. In April 2005, Aaliyah's second posthumous album, a double CD+DVD box set titled Ultimate Aaliyah, was released in the United Kingdom by Blackground Records. Andy Kellman of AllMusic remarked "Ultimate Aaliyah adequately represents the shortened career of a tremendous talent who benefited from some of the best songwriting and production work by Timbaland, Missy Elliott, and R. Kelly." A documentary movie Aaliyah Live in Amsterdam was released in 2011, shortly before the tenth anniversary of Aaliyah's death. The documentary, by Pogus Caesar, contained previously unseen footage shot of her career beginnings in 1995 when she was appearing in the Netherlands. 2012–2014: Proposed posthumous album In March 2012, music producer Jeffrey "J-Dub" Walker announced on his Twitter account that a song "Steady Ground", which he produced for Aaliyah's third album, would be included in the forthcoming posthumous Aaliyah album. This second proposed posthumous album would feature this song using demo vocals, as Walker claims the originals were somehow lost by his sound engineer. Aaliyah's brother Rashad later denied Walker's claim, claiming that "no official album [is] being released and supported by the Haughton family." On August 5, 2012, Blackground Records released the track "Enough Said" online. It was produced by Noah "40" Shebib and features Canadian rapper Drake. Four days later, Jomo Hankerson confirmed a posthumous album is being produced and that it was scheduled to be released by the end of 2012 by Blackground Records. The album was reported to include 16 unreleased songs and have contributions from Aaliyah's longtime collaborators Timbaland and Missy Elliott, among others. On August 13, Timbaland and Missy Elliott dismissed rumors about being contacted or participating for the project. Elliott's manager Mona Scott-Young said to XXL, "Although Missy and Timbaland always strive to keep the memory of their close friend alive, we have not been contacted about the project nor are there any plans at this time to participate. We've seen the reports surfacing that they have been confirmed to participate but that is not the case. Both Missy and Timbaland are very sensitive to the loss still being felt by the family so we wanted to clear up any misinformation being circulated." Elliott herself said, "Tim and I carry Aaliyah with us everyday, like so many of the people who love her. She will always live in our hearts. We have nothing but love and respect for her memory and for her loved ones left behind still grieving her loss. They are always in our prayers." In June 2013, Aaliyah was featured on a new track by Chris Brown, titled "Don't Think They Know"; with Aaliyah singing the song's hook. The video features dancing holographic versions of Aaliyah. The song appears on Brown's sixth studio album, X. Timbaland voiced his disapproval for "Enough Said" and "Don't Think They Know" in July 2013. He exclaimed, "Aaliyah music only work with its soulmate, which is me". Soon after, Timbaland apologized to Chris Brown over his remarks, which he explained were made due to Aaliyah and her death being a "very sensitive subject". In January 2014, producer Noah "40" Shebib confirmed that the posthumous album was shelved due to the negative reception surrounding Drake's involvement. Aaliyah was featured on the Tink track "Million", which was released in May 2015 and contained samples from her song "One in a Million". 2015–present: Merchandise, catalogue rerelease and Unstoppable In September 2015, Aaliyah by Xyrena, an official tribute fragrance, was announced. In November 2015, Timbaland teased that he was working on a new mixtape; a month later on December 16, he revealed the mixtape title, cover, and track listing which included Aaliyah. The 'Kings Stay Kings' mixtape was released on Christmas 2015 and it included an unreleased Aaliyah song titled "Shakin" featuring rapper Strado. In August 2017 MAC Cosmetics announced that an Aaliyah collection would be made available in the summer of 2018. The Aaliyah for Mac collection was released on June 20 online and June 21 in stores; along with the MAC collection, MAC and i-D Magazine partnered up to release a short film titled "A-Z of Aaliyah" which coincided with the launch. The Aaliyah for Mac collectors box was priced at $250 and sold out within minutes. On August 21, 2019, the Madame Tussauds museum revealed a wax figure of Aaliyah at their Las Vegas location. The lifesize figure was modelled on Aaliyah's iconic "Try Again" outfit and makeup. It was unveiled by her brother, Rashad, to an invited audience. Four days later, Aaliyah's family announced that they were in talks with record companies to discuss the future of her discography, with a view of making it available for download and streaming. In January 2021, it was announced that Aaliyah would have her own Funko Pop!figurine. The collectible was styled in Aaliyah's 1994 era and was released March 2021 worldwide. In August 2021, it was reported that the album and Aaliyah's other recorded work for Blackground (since rebranded as Blackground Records 2.0) would be re-released on physical, digital, and streaming services in a deal between the label and Empire Distribution. One in a Million was reissued on August 20, despite Aaliyah's estate issuing a statement in response to Blackground 2.0's announcement, denouncing the "unscrupulous endeavor to release Aaliyah's music without any transparency or full accounting to the estate". After the album's re-release, One in a Million re-entered the UK Official Hip Hop and R&B Albums Chart Top 40 at number eight. In the US, the album reached the top ten for on the Billboard 200 for the first time at number ten, selling 26,000 album-equivalent units in the week ending of August 26. On August 25, 2021, Barry Hankerson revealed in an interview with Big Tigger for WVEE that a fourth (and likely final) studio album, titled Unstoppable, would be released in "a matter of weeks". The album will feature Drake, Snoop Dogg, Ne-Yo, Chris Brown, Future and use previously unreleased vocals from before Aaliyah's passing. Hankerson shared that this will be the end of new music for the late star and added, "I think it's wonderful. It's a very emotional process to do. It's very difficult to hear her sing when she's not here, but we got through it." Aaliyah was reissued September 10, 2021. After the album's re-release, Aaliyah re-entered the UK Official Hip Hop and R&B Albums Chart Top 40 at number seven and re-entered the US Billboard 200 chart at number 13. In celebration of the reissue, Blackground released an animated commercial titled "It's Been A Long Time" (in a similar style to the album's original 2001 commercial), directed by Takahiro Tanaka, showing Aaliyah resurrecting her music from out of a large underground vault. Compilation albums I Care 4 U and Ultimate Aaliyah were reissued October 8, 2021. While the I Care 4 U album failed to rechart, Ultimate Aaliyah peaked at number 8 on the UK R&B Albums Chart Top 40 and charted for the first time in the US at number 41 on the Billboard 200. On December 14, 2021, it was announced that a new single would be released by Aaliyah, featuring The Weeknd. The mid-tempo track, "Poison", was released on December 17, 2021. The single was written by Static Major, The Weeknd and Belly and produced by DannyBoyStyles and Nick Lamb. On January 4, 2022, Hankerson confirmed that Unstoppable would be released later that month, however, there was no sign of the album, nor any announcement from the label and as of 2023 remains unreleased. Legacy and influence Aaliyah has been credited for helping redefine R&B, pop and hip hop in the 1990s, "leaving an indelible imprint on the music industry as a whole." According to Billboard, she revolutionized R&B with her sultry mix of pop, soul and hip hop. Peter Piatkowski from PopMatters, stated, "Much like Janet Jackson's Control set a template of sorts for dance-pop divas in the 1980s, Aaliyah's patented brand of Black pop, which was a mélange of hip-hop, electropop, and soul, set a standard against which other young urban-pop singers were judged". In a 2001 review of her third album, Ernest Hardy from Rolling Stone professed that Aaliyah's impact on R&B and pop has been enormous. Steve Huey of AllMusic wrote Aaliyah ranks among the "elite" artists of the R&B genre, as she "played a major role in popularizing the stuttering, futuristic production style that consumed hip-hop and urban soul in the late 1990s." Critic Bruce Britt stated that by combining "schoolgirl charm with urban grit, Aaliyah helped define the teen-oriented sound that has resulted in contemporary pop phenom's like Brandy, Christina Aguilera and Destiny's Child". Described as one of "R&B's most important artists" during the 1990s, her second studio album, One in a Million, became one of the most influential R&B albums of the decade. Music critic Simon Reynolds cited "Are You That Somebody?" as "the most radical pop single" of 1998. Kelefah Sanneh of The New York Times wrote that rather than being the song's focal point, Aaliyah "knew how to disappear into the music, how to match her voice to the bass line", and consequently "helped change the way popular music sounds; the twitchy, beat-driven songs of Destiny's Child owe a clear debt to 'Are You That Somebody'." Sanneh asserted that by the time of her death in 2001, Aaliyah "had recorded some of the most innovative and influential pop songs of the last five years." Music publication Popdust called Aaliyah an unlikely queen of the underground for her influence on the underground alternative music scene. The publication also mentioned that the forward-thinking music Aaliyah made with Timbaland and the experimental music being made by many underground alternative artists are "somewhat cut from the same cloth". While compiling a list of artists that take cues from Aaliyah, MTV Hive stated that it's easy to spot her influence on underground movements like dubstep, strains of indie pop, and lo-fi R&B movements. Erika Ramirez, an associate editor of Billboard, said at the time of Aaliyah's career "there weren't many artists using the kind of soft vocals the ways she was using it, and now you see a lot of artists doing that and finding success". Ramirez argued that Aaliyah's second album One in a Million was "very much ahead of its time, with the bass and electro kind of R&B sounds that they produced", and that the sound, "really stood out" at its time, was being replicated. There has been continuing belief that Aaliyah would have achieved greater career success had it not been for her death. Emil Wilbekin mentioned the deaths of The Notorious B.I.G. and Tupac Shakur in conjunction with hers and added: "Her just-released third album and scheduled role in a sequel to The Matrix could have made her another Janet Jackson or Whitney Houston". Director of Queen of the Damned Michael Rymer said of Aaliyah, "God, that girl could have gone so far" and spoke of her having "such a clarity about what she wanted. Nothing was gonna step in her way. No ego, no nervousness, no manipulation. There was nothing to stop her." On July 18, 2014, it was announced that Alexandra Shipp replaced Zendaya for the role of Aaliyah for the Lifetime TV biopic movie Aaliyah: The Princess of R&B, which premiered on November 15, 2014. Zendaya drew criticism because people felt that she was too light skinned and did not greatly resemble Aaliyah. She voiced her strong respect for Aaliyah before dropping out of the project. She explained her choice to withdraw from the film in videos on Instagram. Aaliyah's family has been vocal in their disapproving of the film. Her cousin Jomo Hankerson stated the family would prefer a "major studio release along the lines" of What's Love Got to Do with It, the biopic based on the life of Tina Turner. Aaliyah's family has consulted a lawyer to stop Lifetime from using "any of the music, or any of the photographs and videos" they own and Jomo Hankerson claimed the TV network "didn't reach out." On August 9, 2014, it was announced that Chattrisse Dolabaille and Izaak Smith had been cast as Aaliyah's collaborators Missy Elliott and Timbaland. Dolabaille and Smith both received criticism for their appearances in comparison with that of Missy Elliot and Timbaland. Despite negative reviews, the film's premiere drew 3.2 million viewers, becoming the second highest rated television movie of 2014. On August 17, 2021, Atria Books (an imprint of Simon & Schuster) published Kathy Iandoli's Baby Girl: Better Known as Aaliyah, a biography that draws on interviews with Aaliyah's friends, mentors and family, and document how her career influenced a new generation of artists. It has not been authorized by the Haughton family. On August 5, 2022, Beyoncé released "The Queens Remix" to her single "Break My Soul", in which she name-drops Aaliyah, along with other cultural icons. On June 14, 2023, Aaliyah was the subject of the documentary Superstar: Aaliyah, which was broadcast on ABC. The documentary included interviews with Damon Dash, Barry Hankerson, Sevyn Streeter, Will.i.am, Justine Skye, and author Kathy Iandoli, and discussed Aaliyah's life, career and legacy. Achievements Aaliyah has sold 8.1 million albums in the United States and an estimated 24 to 32 million albums worldwide. Throughout the years, she has earned several honorific nicknames, including "Princess of R&B", "Pop Princess", and "Queen of Urban Pop", as she "proved she was a muse in her own right". While Ernest Hardy of Rolling Stone dubbed her the "undisputed queen of the midtempo come-on". She also has been referred to as a pop and R&B icon for her impact on those genres. At the 2001 MTV Video Music Awards, Aaliyah was honored by Janet Jackson, Missy Elliott, Timbaland, Ginuwine and her brother, Rashad, who all paid tribute to her. Also during 2001, the United States Social Security Administration ranked the name Aaliyah as one of the 100 most popular names for newborn girls. In 2003 Aaliyah was ranked as one of "The Top 40 Women of the Video Era" in VH1's The Greatest series. Also, in 2003 in memory of Aaliyah, the Entertainment Industry Foundation created the Aaliyah Memorial Fund to donate money raised to charities she supported. In 2008, she was ranked at number 18 on BET's "Top 25 Dancers of All Time". In December 2009, Billboard magazine ranked Aaliyah at number 70 on its Top Artists of the Decade, while her album Aaliyah was ranked at number 181 on the magazine's Top 200 Albums of the Decade. In 2010 Billboard listed her as the tenth most successful female R&B artist of the past 25 years, and 27th most successful R&B artist overall. In 2011, Essence ranked her at number 14 on its 50 Most Influential R&B Starts list. In 2012, VH1 ranked her number 48 on their "Greatest Women in Music". In 2014, NME ranked her at number 18 on NME 100 most influential artist list. In August 2018, Billboard ranked Aaliyah at number 47 on their Top 60 Female Artists of All-Time list. In 2020, the publication included her on its list of the 100 Greatest Music Video Artists of All Time. Rolling Stone ranked her at number 40 on their 200 Best Singers of All Time list. In September 2023, she was inducted into the National Rhythm & Blues Hall of Fame. Discography Studio albums Age Ain't Nothing but a Number (1994) One in a Million (1996) Aaliyah (2001) Unstoppable (TBA) Compilation albums I Care 4 U (2002) Ultimate Aaliyah (2005) Filmography See also List of artists who reached number one in the United States List of awards and nominations received by Aaliyah List of fatalities from aviation accidents References Bibliography External links Aaliyah on Grammy Awards 1979 births 2001 deaths 20th-century American actresses 20th-century African-American women singers 21st-century American actresses 21st-century African-American women singers Actresses from Brooklyn Actresses from Detroit African-American actresses African-American Catholics African-American female dancers African-American female models Alternative R&B musicians American child singers American contemporary R&B singers American female dancers American film actresses American neo soul singers American women hip hop singers American women pop singers American sopranos Atlantic Records artists Burials at Ferncliff Cemetery Child marriage in the United States Child pop musicians Dancers from Michigan Jive Records artists Midwest hip hop musicians Musicians from Detroit Musicians killed in aviation accidents or incidents Progressive soul musicians Singers from Brooklyn Singers from Detroit Swing Mob artists Universal Records artists Victims of aviation accidents or incidents in 2001 Victims of aviation accidents or incidents in the Bahamas Virgin Records artists

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https://en.wikipedia.org/wiki/Armour

Armour

Armour (Commonwealth English) or armor (American English; see spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, especially direct contact weapons or projectiles during combat, or from a potentially dangerous environment or activity (e.g. cycling, construction sites, etc.). Personal armour is used to protect soldiers and war animals. Vehicle armour is used on warships, armoured fighting vehicles, and some mostly ground attack combat aircraft. A second use of the term armour describes armoured forces, armoured weapons, and their role in combat. After the development of armoured warfare, tanks and mechanised infantry and their combat formations came to be referred to collectively as "armour". Etymology The word "armour" began to appear in the Middle Ages as a derivative of Old French. It is dated from 1297 as a "mail, defensive covering worn in combat". The word originates from the Old French , itself derived from the Latin meaning "arms and/or equipment", with the root meaning "arms or gear". Personal Armour has been used throughout recorded history. It has been made from a variety of materials, beginning with the use of leathers or fabrics as protection and evolving through chain mail and metal plate into today's modern composites. For much of military history the manufacture of metal personal armour has dominated the technology and employment of armour. Armour drove the development of many important technologies of the Ancient World, including wood lamination, mining, metal refining, vehicle manufacture, leather processing, and later decorative metal working. Its production was influential in the industrial revolution, and furthered commercial development of metallurgy and engineering. Armour was the single most influential factor in the development of firearms, which in turn revolutionised warfare. History Significant factors in the development of armour include the economic and technological necessities of its production. For instance, plate armour first appeared in Medieval Europe when water-powered trip hammers made the formation of plates faster and cheaper. At times the development of armour has paralleled the development of increasingly effective weaponry on the battlefield, with armourers seeking to create better protection without sacrificing mobility. Well-known armour types in European history include the lorica hamata, lorica squamata, and the lorica segmentata of the Roman legions, the mail hauberk of the early medieval age, and the full steel plate harness worn by later medieval and renaissance knights, and breast and back plates worn by heavy cavalry in several European countries until the first year of World War I (1914–1915). The samurai warriors of feudal Japan utilised many types of armour for hundreds of years up to the 19th century. Early Cuirasses and helmets were manufactured in Japan as early as the 4th century. Tankō, worn by foot soldiers and keikō, worn by horsemen were both pre-samurai types of early Japanese armour constructed from iron plates connected together by leather thongs. Japanese lamellar armour (keiko) passed through Korea and reached Japan around the 5th century. These early Japanese lamellar armours took the form of a sleeveless jacket, leggings and a helmet. Armour did not always cover all of the body; sometimes no more than a helmet and leg plates were worn. The rest of the body was generally protected by means of a large shield. Examples of armies equipping their troops in this fashion were the Aztecs (13th to 15th century CE). In East Asia, many types of armour were commonly used at different times by various cultures, including scale armour, lamellar armour, laminar armour, plated mail, mail, plate armour, and brigandine. Around the dynastic Tang, Song, and early Ming Period, cuirasses and plates (mingguangjia) were also used, with more elaborate versions for officers in war. The Chinese, during that time used partial plates for "important" body parts instead of covering their whole body since too much plate armour hinders their martial arts movement. The other body parts were covered in cloth, leather, lamellar, or Mountain pattern. In pre-Qin dynasty times, leather armour was made out of various animals, with more exotic ones such as the rhinoceros. Mail, sometimes called "chainmail", made of interlocking iron rings is believed to have first appeared some time after 300 BC. Its invention is credited to the Celts; the Romans are thought to have adopted their design. Gradually, small additional plates or discs of iron were added to the mail to protect vulnerable areas. Hardened leather and splinted construction were used for arm and leg pieces. The coat of plates was developed, an armour made of large plates sewn inside a textile or leather coat. 13th to 18th century Europe Early plate in Italy, and elsewhere in the 13th–15th century, were made of iron. Iron armour could be carburised or case hardened to give a surface of harder steel. Plate armour became cheaper than mail by the 15th century as it required much less labour and labour had become much more expensive after the Black Death, though it did require larger furnaces to produce larger blooms. Mail continued to be used to protect those joints which could not be adequately protected by plate, such as the armpit, crook of the elbow and groin. Another advantage of plate was that a lance rest could be fitted to the breast plate. The small skull cap evolved into a bigger true helmet, the bascinet, as it was lengthened downward to protect the back of the neck and the sides of the head. Additionally, several new forms of fully enclosed helmets were introduced in the late 14th century. Probably the most recognised style of armour in the world became the plate armour associated with the knights of the European Late Middle Ages, but continuing to the early 17th century Age of Enlightenment in all European countries. By 1400, the full harness of plate armour had been developed in armouries of Lombardy. Heavy cavalry dominated the battlefield for centuries in part because of their armour. In the early 15th century, advances in weaponry allowed infantry to defeat armoured knights on the battlefield. The quality of the metal used in armour deteriorated as armies became bigger and armour was made thicker, necessitating breeding of larger cavalry horses. If during the 14–15th centuries armour seldom weighed more than 15 kg, then by the late 16th century it weighed 25 kg. The increasing weight and thickness of late 16th century armour therefore gave substantial resistance. In the early years of low velocity firearms, full suits of armour, or breast plates actually stopped bullets fired from a modest distance. Crossbow bolts, if still in use, would seldom penetrate good plate, nor would any bullet unless fired from close range. In effect, rather than making plate armour obsolete, the use of firearms stimulated the development of plate armour into its later stages. For most of that period, it allowed horsemen to fight while being the targets of defending arquebusiers without being easily killed. Full suits of armour were actually worn by generals and princely commanders right up to the second decade of the 18th century. It was the only way they could be mounted and survey the overall battlefield with safety from distant musket fire. The horse was afforded protection from lances and infantry weapons by steel plate barding. This gave the horse protection and enhanced the visual impression of a mounted knight. Late in the era, elaborate barding was used in parade armour. Later Gradually, starting in the mid-16th century, one plate element after another was discarded to save weight for foot soldiers. Back and breast plates continued to be used throughout the entire period of the 18th century and through Napoleonic times, in many European heavy cavalry units, until the early 20th century. From their introduction, muskets could pierce plate armour, so cavalry had to be far more mindful of the fire. In Japan, armour continued to be used until the late 19th century, with the last major fighting in which armour was used, this occurred in 1868. Samurai armour had one last short lived use in 1877 during the Satsuma Rebellion. Though the age of the knight was over, armour continued to be used in many capacities. Soldiers in the American Civil War bought iron and steel vests from peddlers (both sides had considered but rejected body armour for standard issue). The effectiveness of the vests varied widely, some successfully deflected bullets and saved lives, but others were poorly made and resulted in tragedy for the soldiers. In any case the vests were abandoned by many soldiers due to their increased weight on long marches, as well as the stigma they got for being cowards from their fellow troops. At the start of World War I, thousands of the French Cuirassiers rode out to engage the German Cavalry. By that period, the shiny metallic cuirass was covered in a dark paint and a canvas wrap covered their elaborate Napoleonic style helmets, to help mitigate the sunlight being reflected off the surfaces, thereby alerting the enemy of their location. Their armour was only meant for protection against edged weapons such as bayonets, sabres, and lances. Cavalry had to be wary of repeating rifles, machine guns, and artillery, unlike the foot soldiers, who at least had a trench to give them some protection. Present Today, ballistic vests, also known as flak jackets, made of ballistic cloth (e.g. kevlar, dyneema, twaron, spectra etc.) and ceramic or metal plates are common among police forces, security staff, corrections officers and some branches of the military. The US Army has adopted Interceptor body armour, which uses Enhanced Small Arms Protective Inserts (ESAPIs) in the chest, sides, and back of the armour. Each plate is rated to stop a range of ammunition including 3 hits from a 7.62×51 NATO AP round at a range of . Dragon Skin is another ballistic vest which is currently in testing with mixed results. As of 2019, it has been deemed too heavy, expensive, and unreliable, in comparison to more traditional plates, and it is outdated in protection compared to modern US IOTV armour, and even in testing was deemed a downgrade from the IBA. The British Armed Forces also have their own armour, known as Osprey. It is rated to the same general equivalent standard as the US counterpart, the Improved Outer Tactical Vest, and now the Soldier Plate Carrier System and Modular Tactical Vest. The Russian Armed Forces also have armour, known as the 6B43, all the way to 6B45, depending on variant. Their armour runs on the GOST system, which, due to regional conditions, has resulted in a technically higher protective level overall. Vehicle The first modern production technology for armour plating was used by navies in the construction of the ironclad warship, reaching its pinnacle of development with the battleship. The first tanks were produced during World War I. Aerial armour has been used to protect pilots and aircraft systems since the First World War. In modern ground forces' usage, the meaning of armour has expanded to include the role of troops in combat. After the evolution of armoured warfare, mechanised infantry were mounted in armoured fighting vehicles and replaced light infantry in many situations. In modern armoured warfare, armoured units equipped with tanks and infantry fighting vehicles serve the historic role of heavy cavalry, light cavalry, and dragoons, and belong to the armoured branch of warfare. History Ships The first ironclad battleship, with iron armour over a wooden hull, , was launched by the French Navy in 1859 prompting the British Royal Navy to build a counter. The following year they launched , which was twice the size and had iron armour over an iron hull. After the first battle between two ironclads took place in 1862 during the American Civil War, it became clear that the ironclad had replaced the unarmoured line-of-battle ship as the most powerful warship afloat. Ironclads were designed for several roles, including as high seas battleships, coastal defence ships, and long-range cruisers. The rapid evolution of warship design in the late 19th century transformed the ironclad from a wooden-hulled vessel which carried sails to supplement its steam engines into the steel-built, turreted battleships and cruisers familiar in the 20th century. This change was pushed forward by the development of heavier naval guns (the ironclads of the 1880s carried some of the heaviest guns ever mounted at sea), more sophisticated steam engines, and advances in metallurgy which made steel shipbuilding possible. The rapid pace of change in the ironclad period meant that many ships were obsolete as soon as they were complete, and that naval tactics were in a state of flux. Many ironclads were built to make use of the ram or the torpedo, which a number of naval designers considered the crucial weapons of naval combat. There is no clear end to the ironclad period, but towards the end of the 1890s the term ironclad dropped out of use. New ships were increasingly constructed to a standard pattern and designated battleships or armoured cruisers. Trains Armoured trains saw use from the mid-19th to the mid-20th century, including the American Civil War (1861–1865), the Franco-Prussian War (1870–1871), the First and Second Boer Wars (1880–81 and 1899–1902), the Polish–Soviet War (1919–1921), the First (1914–1918) and Second World Wars (1939–1945) and the First Indochina War (1946–1954). The most intensive use of armoured trains was during the Russian Civil War (1918–1920). Armoured fighting vehicles Ancient siege engines were usually protected by wooden armour, often covered with wet hides or thin metal to prevent being easily burned. Medieval war wagons were horse-drawn wagons that were similarly armoured. These contained guns or crossbowmen that could fire through gun-slits. The first modern armoured fighting vehicles were armoured cars, developed circa 1900. These started as ordinary wheeled motor-cars protected by iron shields, typically mounting a machine gun. During the First World War, the stalemate of trench warfare during on the Western Front spurred the development of the tank. It was envisioned as an armoured machine that could advance under fire from enemy rifles and machine guns, and respond with its own heavy guns. It used caterpillar tracks to cross ground broken up by shellfire and trenches. Aircraft With the development of effective anti-aircraft artillery in the period before the Second World War, military pilots, once the "knights of the air" during the First World War, became far more vulnerable to ground fire. As a response, armour plating was added to aircraft to protect aircrew and vulnerable areas such as engines and fuel tanks. Self-sealing fuel tanks functioned like armour in that they added protection but also increased weight and cost. Present Tank armour has progressed from the Second World War armour forms, now incorporating not only harder composites, but also reactive armour designed to defeat shaped charges. As a result of this, the main battle tank (MBT) conceived in the Cold War era can survive multiple rocket-propelled grenade strikes with minimal effect on the crew or the operation of the vehicle. The light tanks that were the last descendants of the light cavalry during the Second World War have almost completely disappeared from the world's militaries due to increased lethality of the weapons available to the vehicle-mounted infantry. The armoured personnel carrier (APC) was devised during the First World War. It allows the safe and rapid movement of infantry in a combat zone, minimising casualties and maximising mobility. APCs are fundamentally different from the previously used armoured half-tracks in that they offer a higher level of protection from artillery burst fragments, and greater mobility in more terrain types. The basic APC design was substantially expanded to an infantry fighting vehicle (IFV) when properties of an APC and a light tank were combined in one vehicle. Naval armour has fundamentally changed from the Second World War doctrine of thicker plating to defend against shells, bombs and torpedoes. Passive defence naval armour is limited to kevlar or steel (either single layer or as spaced armour) protecting particularly vital areas from the effects of nearby impacts. Since ships cannot carry enough armour to completely protect against anti-ship missiles, they depend more on defensive weapons destroying incoming missiles, or causing them to miss by confusing their guidance systems with electronic warfare. Although the role of the ground attack aircraft significantly diminished after the Korean War, it re-emerged during the Vietnam War, and in the recognition of this, the US Air Force authorised the design and production of what became the A-10 dedicated anti-armour and ground-attack aircraft that first saw action in the Gulf War. High-voltage transformer fire barriers are often required to defeat ballistics from small arms as well as projectiles from transformer bushings and lightning arresters, which form part of large electrical transformers, per NFPA 850. Such fire barriers may be designed to inherently function as armour, or may be passive fire protection materials augmented by armour, where care must be taken to ensure that the armour's reaction to fire does not cause issues with regards to the fire barrier being armoured to defeat explosions and projectiles in addition to fire, especially since both functions must be provided simultaneously, meaning they must be fire-tested together to provide realistic evidence of fitness for purpose. Combat drones use little to no vehicular armour as they are not manned vessels, this results in them being lightweight and small in size. Animal armour Horse armour Body armour for war horses has been used since at least 2000 BC. Cloth, leather, and metal protection covered cavalry horses in ancient civilisations, including ancient Egypt, Assyria, Persia, and Rome. Some formed heavy cavalry units of armoured horses and riders used to attack infantry and mounted archers. Armour for horses is called barding (also spelled bard or barb) especially when used by European knights. During the late Middle Ages as armour protection for knights became more effective, their mounts became targets. This vulnerability was exploited by the Scots at the Battle of Bannockburn in the 14th century, when horses were killed by the infantry, and for the English at the Battle of Crécy in the same century where longbowmen shot horses and the then dismounted French knights were killed by heavy infantry. Barding developed as a response to such events. Examples of armour for horses could be found as far back as classical antiquity. Cataphracts, with scale armour for both rider and horse, are believed by many historians to have influenced the later European knights, via contact with the Byzantine Empire. Surviving period examples of barding are rare; however, complete sets are on display at the Philadelphia Museum of Art, the Wallace Collection in London, the Royal Armouries in Leeds, and the Metropolitan Museum of Art in New York. Horse armour could be made in whole or in part of cuir bouilli (hardened leather), but surviving examples of this are especially rare. Elephant armour War elephants were first used in ancient times without armour, but armour was introduced because elephants injured by enemy weapons would often flee the battlefield. Elephant armour was often made from hardened leather, which was fitted onto an individual elephant while moist, then dried to create a hardened shell. Alternatively, metal armour pieces were sometimes sewn into heavy cloth. Later lamellar armour (small overlapping metal plates) was introduced. Full plate armour was not typically used due to its expense and the danger of the animal overheating. See also Battledress Bomb suit High-voltage transformer fire barriers Linothorax Powered exoskeleton Rolled homogeneous armour Notes References "Ballistic Protection Levels." BulletproofME.com Body Armor. ArmorUP L.P., n.d. 19 October 2014 External links Articles containing video clips Safety clothing Military equipment of antiquity

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https://en.wikipedia.org/wiki/Armoured%20fighting%20vehicle

Armoured fighting vehicle

An armoured fighting vehicle (British English) or armored fighting vehicle (American English) (AFV) is an armed combat vehicle protected by armour, generally combining operational mobility with offensive and defensive capabilities. AFVs can be wheeled or tracked. Examples of AFVs are tanks, armoured cars, assault guns, self-propelled artilleries, infantry fighting vehicles (IFV), and armoured personnel carriers (APC). Armoured fighting vehicles are classified according to their characteristics and intended role on the battlefield. The classifications are not absolute; two countries may classify the same vehicle differently, and the criteria change over time. For example, relatively lightly armed armoured personnel carriers were largely superseded by infantry fighting vehicles with much heavier armament in a similar role. Successful designs are often adapted to a wide variety of applications. For example, the MOWAG Piranha, originally designed as an APC, has been adapted to fill numerous roles such as a mortar carrier, infantry fighting vehicle, and assault gun. Armoured fighting vehicles began to appear in use in World War I with the armoured car, the tank, the self-propelled gun, and the personnel carrier seeing use. By World War II, armies had large numbers of AFVs, together with other vehicles to carry troops this permitted highly mobile manoeuvre warfare. Evolution The concept of a highly mobile and protected fighting unit has been around for centuries; from Hannibal's war elephants to Leonardo's contraptions, military strategists endeavoured to maximize the mobility and survivability of their soldiers. Armoured fighting vehicles were not possible until internal combustion engines of sufficient power became available at the start of the 20th century. History Pre-modern Modern armoured fighting vehicles represent the realization of an ancient concept – that of providing troops with mobile protection and firepower. Armies have deployed war machines and cavalries with rudimentary armour in battle for millennia. Use of these animals and engineering designs sought to achieve a balance between the conflicting paradoxical needs of mobility, firepower and protection. Siege machine Siege engines, such as battering rams and siege towers, would often be armoured in order to protect their crews from enemy action. Polyidus of Thessaly developed a very large movable siege tower, the helepolis, as early as 340 BC, and Greek forces used such structures in the Siege of Rhodes (305 BC). The idea of a protected fighting vehicle has been known since antiquity. Frequently cited is Leonardo da Vinci's 15th-century sketch of a mobile, protected gun-platform; the drawings show a conical, wooden shelter with apertures for cannons around the circumference. The machine was to be mounted on four wheels which would be turned by the crew through a system of hand cranks and cage (or "lantern") gears. Leonardo claimed: "I will build armoured wagons which will be safe and invulnerable to enemy attacks. There will be no obstacle which it cannot overcome." Modern replicas have demonstrated that the human crew would have been able to move it over only short distances. War wagon Hussite forces in Bohemia developed war wagons – medieval horse-drawn wagons that doubled as wagon forts – around 1420 during the Hussite Wars. These heavy wagons were given protective sides with firing slits; their heavy firepower came from either a cannon or from a force of hand-gunners and crossbowmen, supported by light cavalry and infantry using pikes and flails. Heavy arquebuses mounted on wagons were called arquebus à croc. These carried a ball of about . Modern By the end of World War II, most modern armies had vehicles to carry infantry, artillery and anti-aircraft weaponry. Most modern AFVs are superficially similar in design to their World War II counterparts, but with significantly better armour, weapons, engines, electronics, and suspension. The increase in the capacity of transport aircraft makes possible and practicable the transport of AFVs by air. Many armies are replacing some or all of their traditional heavy vehicles with lighter airmobile versions, often with wheels instead of tracks. Armed and armoured car The first modern AFVs were armed cars, dating back virtually to the invention of the motor car. The British inventor F. R. Simms designed and built the Motor Scout in 1898. It was the first armed, petrol-engine powered vehicle ever built. It consisted of a De Dion-Bouton quadricycle with a Maxim machine gun mounted on the front bar. An iron shield offered some protection for the driver from the front, but it lacked all-around protective armour. The armoured car was the first modern fully armoured fighting vehicle. The first of these was the Simms's Motor War Car, also designed by Simms and built by Vickers, Sons & Maxim in 1899. The vehicle had Vickers armour 6 mm thick and was powered by a four-cylinder 3.3-litre 16 hp Cannstatt Daimler engine giving it a maximum speed of around . The armament, consisting of two Maxim guns, was carried in two turrets with 360° traverse. Another early armoured car of the period was the French Charron, Girardot et Voigt 1902, presented at the Salon de l'Automobile et du cycle in Brussels, on 8 March 1902. The vehicle was equipped with a Hotchkiss machine gun, and with 7 mm armour for the gunner. Armoured cars were first used in large numbers on both sides during World War I as scouting vehicles. Tank In 1903, H. G. Wells published the short story "The Land Ironclads," positing indomitable war machines that would bring a new age of land warfare, the way steam-powered ironclad warships had ended the age of sail. Wells's literary vision was realized in 1916, when, amidst the pyrrhic standstill of the Great War, the British Landship Committee deployed revolutionary armoured vehicles to break the stalemate. The tank was envisioned as an armoured machine that could cross ground under fire from machine guns and reply with its own mounted machine guns and naval artillery. These first British tanks of World War I moved on caterpillar tracks that had substantially lower ground pressure than wheeled vehicles, enabling them to pass the muddy, pocked terrain and slit trenches of the Battle of the Somme. Troop transport The tank eventually proved highly successful and, as technology improved, it became a weapon that could cross large distances at much higher speeds than supporting infantry and artillery. The need to provide the units that would fight alongside the tank led to the development of a wide range of specialised AFVs, especially during the Second World War (1939–1945). The armoured personnel carrier, designed to transport infantry troops to the frontline, emerged towards the end of World War I. During the first actions with tanks, it had become clear that close contact with infantry was essential in order to secure ground won by the tanks. Troops on foot were vulnerable to enemy fire, but they could not be transported in the tank because of the intense heat and noxious atmosphere. In 1917, Lieutenant G. J. Rackham was ordered to design an armoured vehicle that could fight and carry troops or supplies. The Mark IX tank was built by Armstrong, Whitworth & Co., although just three vehicles had been finished at the time of the Armistice in November 1918, and only 34 were built in total. Tankette Different tank classifications emerged in the interwar period. The tankette was conceived as a mobile, two-man model, mainly intended for reconnaissance. In 1925, Sir John Carden and Vivian Loyd produced the first such design to be adopted – the Carden Loyd tankette. Tankettes saw use in the Royal Italian Army during the Italian invasion of Ethiopia (1935–1936), the Spanish Civil War (1936–1939), and almost everywhere Italian soldiers fought during World War II. The Imperial Japanese Army used tankettes for jungle warfare. Self-propelled artillery The British Gun Carrier Mark I, the first Self-propelled artillery, was fielded in 1917. It was based on the first tank, the British Mark I, and carried a heavy field-gun. The next major advance was the Birch gun (1925), developed for the British motorised warfare experimental brigade (the Experimental Mechanized Force). This mounted a field gun, capable of the usual artillery trajectories and even anti-aircraft use, on a tank chassis. During World War II, most major military powers developed self-propelled artillery vehicles. These had guns mounted on a tracked chassis (often that of an obsolete or superseded tank) and provided an armoured superstructure to protect the gun and its crew. The first British design, "Bishop", carried the 25 pdr gun-howitzer in an extemporised mounting on a tank chassis that severely limited the gun's performance. It was replaced by the more effective Sexton. The Germans built many lightly armoured self-propelled anti-tank guns using captured French equipment (for example Marder I), their own obsolete light tank chassis (Marder II), or ex-Czech chassis (Marder III). These led to better-protected tank destroyers, built on a medium-tank chassis such as the Jagdpanzer IV or the Jagdpanther. Anti-aircraft vehicle The Self-propelled anti-aircraft weapon debuted in WWI. The German 88 mm anti-aircraft gun was truck-mounted and used to great effect against British tanks, and the British QF 3-inch 20 cwt was mounted on trucks for use on the Western Front. Although the Birch gun was a general purpose artillery piece on an armoured tracked chassis, it was capable of elevation for anti-aircraft use. Vickers Armstrong developed one of the first SPAAGs based on the chassis of the Mk.E 6-ton light tank/Dragon Medium Mark IV tractor, mounting a Vickers QF-1 "Pom-Pom" gun of 40 mm. The Germans fielded the Sd.Kfz. 10/4 and 6/2, cargo halftracks mounting single 20 mm or 37 mm AA guns (respectively) by the start of the war. Self-propelled multiple rocket-launcher Rocket launchers such as the Soviet Katyusha originated in the late 1930s. The Wehrmacht fielded self-propelled rocket artillery in World War II – the Panzerwerfer and Wurfrahmen 40 equipped half-track armoured fighting vehicles. Many modern multiple rocket launchers are self propelled by either truck or tank chassis. Design Survivability The level of armour protection between AFVs varies greatly – a main battle tank will normally be designed to take hits from other tank guns and anti-tank missiles, whilst light reconnaissance vehicles are often only armoured "just in case". Whilst heavier armour provides better protection, it makes vehicles less mobile (for a given engine power), limits its air-transportability, increases cost, uses more fuel and may limit the places it can go – for example, many bridges may be unable to support the weight of a main battle tank. A trend toward composite armour is taking the place of steel – composites are stronger for a given weight, allowing the tank to be lighter for the same protection as steel armour, or better protected for the same weight. Armour is being supplemented with active protection systems on a number of vehicles, allowing the AFV to protect itself from incoming projectiles. The level of protection also usually varies considerably throughout the individual vehicle too, depending on the role of the vehicle and the likely direction of attack. For example, a main battle tank will usually have the heaviest armour on the hull front and the turret, lighter armour on the sides of the hull and the thinnest armour on the top and bottom of the tank. Other vehicles – such as the MRAP family – may be primarily armoured against the threat from IEDs and so will have heavy, sloped armour on the bottom of the hull. Firepower Weaponry varies by a very wide degree between AFVs – lighter vehicles for infantry carrying, reconnaissance or specialist roles may have only a autocannon or machine gun (or no armament at all), whereas heavy self-propelled artillery will carry howitzers, mortars or rocket launchers. These weapons may be mounted on a pintle, affixed directly to the vehicle or placed in a turret or cupola. The greater the recoil of the weapon on an AFV, the larger the turret ring needs to be. A larger turret ring necessitates a larger vehicle. To avoid listing to the side, turrets on amphibious vehicles are usually located at the centre of the vehicle. Grenade launchers provide a versatile launch platform for a plethora of munitions including, smoke, phosphorus, tear gas, illumination, anti-personnel, infrared and radar-jamming rounds. Turret stabilization is an important capability because it enables firing on the move and prevents crew fatigue. Maneuverability Modern AFVs have primarily used either petrol (gasoline) or diesel piston engines. More recently, gas turbines have been used. Most early AFVs used petrol engines, as they offer a good power-to-weight ratio. However, they fell out of favour during World War II due to the flammability of the fuel. Most current AFVs are powered by a diesel engine; modern technology, including the use of turbo-charging, helps to overcome the lower power-to-weight ratio of diesel engines compared to petrol. Gas turbine (turboshaft) engines offer a very high power-to-weight ratio and were starting to find favour in the late 20th century – however, they offer very poor fuel consumption and as such some armies are switching from gas turbines back to diesel engines (i.e. the Russian T-80 used a gas turbine engine, whereas the later T-90 does not). The US M1 Abrams is a notable example of a gas turbine powered tank. Modern classification by type and role Notable armoured fighting vehicles extending from post-World War I to today. Tank The tank is an all terrain AFV incorporating artillery which is designed to fill almost all battlefield roles and to engage enemy forces by the use of direct fire in the frontal assault role. Though several configurations have been tried, particularly in the early experimental "golden days" of tank development, a standard, mature design configuration has since emerged to a generally accepted pattern. This features a main tank gun or artillery gun, mounted in a fully rotating turret atop a tracked automotive hull, with various additional secondary weapon systems throughout. Philosophically, the tank is, by its very nature, an offensive weapon. Being a protective encasement with at least one gun position, it is essentially a pillbox or small fortress (though these are static fortifications of a purely defensive nature) that can move toward the enemy – hence its offensive utility. Psychologically, the tank is a force multiplier that has a positive morale effect on the infantry it accompanies. It also instills fear in the opposing force who can often hear and even feel their arrival. Tank classifications Tanks were classified either by size or by role. Classification by relative size was common, as this also tended to influence the tanks' role. Light tanks are smaller tanks with thinner armour and lower-powered guns, allowing for better tactical mobility and ease of strategic transport. These are intended for armoured reconnaissance, skirmishing, artillery observation, expeditionary warfare and supplementing airborne or naval landings. Light tanks are typically cheaper to build and maintain, but fare poorly against heavier tanks. They may be held in reserve for exploiting any breakthroughs in enemy lines, with the goal of disrupting communications and supply lines. Medium tanks are mid-sized tanks with adequate armour and guns, and fair mobility, allowing for a balance of fighting abilities, mobility, cost-effectiveness, and transportability. Medium tanks are effective in groups when used against enemy tanks. Heavy tanks are larger tanks with thick armour and more powerful guns, but less mobile and more difficult to transport. They were intended to be more than a match for typical enemy medium tanks, easily penetrating their armour while being much less susceptible to their attacks. Heavy tanks cost more to both build and maintain, and their heavy armour proved most effective when deployed in support infantry assaulting entrenched fortifications. Over time, tanks tended to be designed with heavier armour and weapons, increasing the weight of all tanks, so these classifications are relative to the average for the nation's tanks for any given period. An older tank design might be reclassified over time, such as a tank being first deployed as a medium tank, but in later years relegated to light tank roles. Tanks were also classified by roles that were independent of size, such as cavalry tank, cruiser tank, fast tank, infantry tank, "assault" tank, or "breakthrough" tank. Military theorists initially tended to assign tanks to traditional military infantry, cavalry, and artillery roles, but later developed more specialized roles unique to tanks. In modern use, the heavy tank has fallen out of favour, being supplanted by more heavily armed and armoured descendant of the medium tanks – the universal main battle tank. The light tank has, in many armies, lost favour to cheaper, faster, lighter armoured cars; however, light tanks (or similar vehicles with other names) are still in service with a number of forces as reconnaissance vehicles, most notably the Russian Marines with the PT-76, the British Army with the Scimitar, and the Chinese Army with the Type 63. Main battle tank Modern main battle tanks or "universal tanks" incorporate recent advances in automotive, artillery, armour, and electronic technology to combine the best characteristics of the historic medium and heavy tanks into a single, all-around type. They are also the most expensive to mass-produce. A main battle tank is distinguished by its high level of firepower, mobility and armour protection relative to other vehicles of its era. It can cross comparatively rough terrain at high speeds, but its heavy dependency on fuel, maintenance, and ammunition makes it logistically demanding. It has the heaviest armour of any AFVs on the battlefield, and carries a powerful precision-guided munition weapon systems that may be able to engage a wide variety of both ground targets and air targets. Despite significant advances in anti-tank warfare, it still remains the most versatile and fearsome land-based weapon-systems of the 21st-century, valued for its shock action and high survivability. Tankette A tankette is a tracked armed and armoured vehicle resembling a small "ultra-light tank" or "super-light tank" roughly the size of a car, mainly intended for light infantry support or scouting. They were one or two-man vehicles armed with a machine gun. Colloquially it may also simply mean a "small tank". Tankettes were designed and built by several nations between the 1920s and 1940s following the British Carden Loyd tankette which was a successful implementation of "one man tank" ideas from Giffard Le Quesne Martel. They were very popular with smaller countries. Some saw some combat (with limited success) in World War II. However, the vulnerability of their light armour eventually caused the concept to be abandoned. However, the German Army uses a modern design of air-transportable armoured weapons carriers, the Wiesel AWC, which resembles the concept of a tankette. Super-heavy tank The term "super-heavy tank" has been used to describe armoured fighting vehicles of extreme size, generally over 75 tonnes. Programs have been initiated on several occasions with the aim of creating an invincible siegeworks/breakthrough vehicle for penetrating enemy formations and fortifications without fear of being destroyed in combat. Examples were designed in World War I and World War II (such as the Panzer VIII Maus), along with a few in the Cold War. However, few working prototypes were built and there is no clear evidence any of these vehicles saw combat, as their immense size would have made most designs impractical. Missile tank A missile tank is a tank fulfilling the role of a main battle tank, but using only anti-tank surface-to-surface missiles for main armament. Several nations have experimented with prototypes, notably the Soviet Union during the tenure of Nikita Khrushchev (projects Object 167, Object 137Ml, Object 155Ml, Object 287, Object 775), Flame tank A flame tank is an otherwise-standard tank equipped with a flamethrower, most commonly used to supplement combined arms attacks against fortifications, confined spaces, or other obstacles. The type only reached significant use in the Second World War, during which the United States, Soviet Union, Germany, Italy, Japan and the United Kingdom (including members of the British Commonwealth) all produced flamethrower-equipped tanks. Usually, the flame projector replaced one of the tank's machineguns, however, some flame projectors replaced the tank's main gun. Fuel for the flame weapon was generally carried inside the tank, although a few designs mounted the fuel externally, such as the armoured trailer used on the Churchill Crocodile. Flame tanks have been superseded by thermobaric weapons such as the Russian TOS-1. Infantry tank The idea for this tank was developed during World War I by British and French. The infantry tank was designed to work in concert with infantry in the assault, moving mostly at a walking pace, and carrying heavy armour to survive defensive fire. Its main purpose was to suppress enemy fire, crush obstacles such as barbed-wire entanglements, and protect the infantry on their advance into and through enemy lines by giving mobile overwatch and cover. The French Renault FT was the first iteration of this concept. The British and French retained the concept between the wars and into the Second World War era. Because infantry tanks did not need to be fast, they could carry heavy armour. One of the best-known infantry tanks was the Matilda II of World War II. Other examples include the French R-35, the British Valentine, and the British Churchill. Cruiser tank A cruiser tank, or cavalry tank, was designed to move fast and exploit penetrations of the enemy front. The idea originated in "Plan 1919", a British plan to break the trench deadlock of World War I in part via the use of high-speed tanks. The first cruiser tank was the British Whippet. Between the wars, this concept was implemented in the "fast tanks" pioneered by J. Walter Christie. These led to the Soviet BT tank series and the British cruiser tank series. During World War II, British cruiser tanks were designed to complement infantry tanks, exploiting gains made by the latter to attack and disrupt the enemy rear areas. In order to give them the required speed, cruiser designs sacrificed armour and armament compared to the infantry tanks. Pure British cruisers were generally replaced by more capable medium tanks such as the US Sherman and, to a lesser extent, the Cromwell by 1943. The Soviet fast tank (bistrokhodniy tank, or BT tank) classification also came out of the infantry/cavalry concept of armoured warfare and formed the basis for the British cruisers after 1936. The T-34 was a development of this line of tanks as well, though their armament, armour, and all-round capability places them firmly in the medium tank category. Armoured car The armoured car is a wheeled, often lightly armoured, vehicle adapted as a fighting machine. Its earliest form consisted of a motorised ironside chassis fitted with firing ports. By World War I, this had evolved into a mobile fortress equipped with command equipment, searchlights, and machine guns for self-defence. It was soon proposed that the requirements for the armament and layout of armoured cars be somewhat similar to those on naval craft, resulting in turreted vehicles. The first example carried a single revolving cupola with a Vickers gun; modern armoured cars may boast heavier armament – ranging from twin machine guns to large calibre cannon. Some multi-axled wheeled fighting vehicles can be quite heavy, and superior to older or smaller tanks in terms of armour and armament. Others are often used in military marches and processions, or for the escorting of important figures. Under peacetime conditions, they form an essential part of most standing armies. Armoured car units can move without the assistance of transporters and cover great distances with fewer logistical problems than tracked vehicles. During World War II, armoured cars were used for reconnaissance alongside scout cars. Their guns were suitable for some defence if they encountered enemy armoured fighting vehicles, but they were not intended to engage enemy tanks. Armoured cars have since been used in the offensive role against tanks with varying degrees of success, most notably during the South African Border War, Toyota War, the Invasion of Kuwait, and other lower-intensity conflicts. Aerosledge An aerosledge is a type of propeller-driven snowmobile, running on skis, used for communications, mail deliveries, medical aid, emergency recovery and border patrolling in northern Russia, as well as for recreation. Aerosledges were used by the Soviet Red Army during the Winter War and World War II. Some early aerosledges were built by young Igor Sikorsky in 1909–10, before he built multi-engine airplanes and helicopters. They were very light plywood vehicles on skis, propelled by old airplane engines and propellers. Scout car A scout car is a military armoured reconnaissance vehicle, capable of off-road mobility and often carrying mounted weapons such as machine guns for offensive capabilities and crew protection. They often only carry an operational crew aboard, which differentiates them from wheeled armoured personnel carriers (APCs) and infantry mobility vehicles (IMVs), but early scout cars, such as the open-topped US M3 scout car could carry a crew of seven. The term is often used synonymously with the more general term armoured car, which also includes armoured civilian vehicles. They are also differentiated by being designed and built for purpose, as opposed to improvised "technicals" which might serve in the same role. Reconnaissance vehicle A reconnaissance vehicle, also known as a scout vehicle, is a military vehicle used for forward reconnaissance. Both tracked and wheeled reconnaissance vehicles are in service. In some nations, light tanks such as the M551 Sheridan and AMX-13 are also used by scout platoons. Reconnaissance vehicles are usually designed with a low profile or small size and are lightly armoured, relying on speed and cover to escape detection. Their armament ranges from a medium machine gun to an autocannon. Modern examples are often fitted with ATGMs and a wide range of sensors. Some armoured personnel carriers and infantry mobility vehicle, such as the M113, TPz Fuchs, and Cadillac Gage Commando double in the reconnaissance role. Internal security vehicle An internal security vehicle (ISV), also known as an armoured security vehicle (ASV), is a combat vehicle used for suppressing civilian unrest. Security vehicles are typically armed with a turreted heavy machine gun and auxiliary medium machine gun. The vehicle is designed to minimize firepower dead space and the vehicles weapons can be depressed to a maximum of 12°. Non-lethal water cannons and tear gas cannons can provide suppressive fire in lieu of unnecessary deadly fire. The vehicle must be protected against weapons typical of riots. Protection from improvised incendiary devices is achieved though coverage of the air intake and exhaust ports as well as a strong locking mechanism on the fuel opening. Turret and door locks prevent access to the interior of the vehicle by rioters. Vision blocks, ballistic glass and window shutters and outside surveillance cameras allow protected observation from within the vehicle. Wheeled 4x4 and 6x6 configurations are typical of security vehicles. Tracked security vehicles are often cumbersome and leave negative political connotations for being perceived as an imperial invading force. Military light utility vehicle Military light utility vehicles are the lightest weight class of military vehicles. It refers to light 4x4 military vehicles with light or no armour and all-terrain mobility. This type of vehicle originated in the first half of the 20th century when horses and other draft animals were replaced with mechanization. Light utility vehicles such as the Willys Jeep were frequently mounted with .50-calibre machineguns and other small weapons for hit-and-run tactics in WWII, especially by the British Special Air Service who used Jeeps to raid Axis airfields during the North Africa campaign. After WWII, vehicles like the Toyota Mega Cruiser and Humvee filled this role. In the 21st century, improvised explosive devices continue to pose threat to mobile infantry resulting in light utility vehicles being made heavier and with more armour. Improvised fighting vehicle An improvised fighting vehicle is a combat vehicle resulting from modifications to a civilian or military non-combat vehicle in order to give it a fighting capability. Such modifications usually consist of the grafting of armour plating and weapon systems. Various militaries have procured such vehicles, ever since the introduction of the first automobiles into military service. During the early days, the absence of a doctrine for the military use of automobiles or of an industry dedicated to producing them, lead to much improvisation in the creation of early armoured cars, and other such vehicles. Later, despite the advent of arms industries in many countries, several armies still resorted to using ad hoc contraptions, often in response to unexpected military situations, or as a result of the development of new tactics for which no available vehicle was suitable. The construction of improvised fighting vehicles may also reflect a lack of means for the force that uses them. This is especially true in underdeveloped countries and even in developing countries, where various armies and guerrilla forces have used them, as they are more affordable than military-grade combat vehicles. Modern examples include military gun truck used by units of regular armies or other official government armed forces, based on a conventional military cargo truck, that is able to carry a large weight of weapons and armour. They have mainly been used by regular armies to escort military convoys in regions subject to ambush by guerrilla forces. "Narco tanks", used by Mexican drug cartels in the Mexican drug war, are built from such trucks, which combines operational mobility, tactical offensive, and defensive capabilities. Troop carriers Troop-carrying AFVs are divided into three main types – armoured personnel carriers (APCs), infantry fighting vehicles (IFVs) and infantry mobility vehicles (IMV). The main difference between the three is their intended role – the APC is designed purely to transport troops and is armed for self-defence only – whereas the IFV is designed to provide close-quarters and anti-armour fire support to the infantry it carries. IMV is a wheeled armoured personnel carrier serving as a military patrol, reconnaissance or security vehicle. Armoured personnel carrier Armoured personnel carriers (APCs) are intended to carry infantry quickly and relatively safely to the point where they are deployed. In the Battle of Amiens, 8 August 1918, the British Mk V* tank (a lengthened Mark V) carried a small number of machine gunners as an experiment, but the men were debilitated by the conditions inside the vehicle. Later that year the first purpose-built APC, the British Mk IX tank (Mark Nine), appeared. In 1944, the Canadian general Guy Simonds ordered the conversion of redundant armoured vehicles to carry troops (generically named "Kangaroos"). This proved highly successful, even without training, and the concept was widely used in the 21st Army Group. Post-war, specialised designs were built, such as the Soviet BTR-60 and US M113. Infantry fighting vehicle An infantry fighting vehicle (IFV), also known as a mechanized infantry combat vehicle (MICV), is a type of armoured fighting vehicle used to carry infantry into battle and provide direct fire support. The first example of an IFV was the West German Schützenpanzer Lang HS.30 which served in the Bundeswehr from 1958 until the early 1980s. IFVs are similar to armoured personnel carriers (APCs) and infantry carrier vehicles (ICVs), designed to transport a section or squad of infantry (generally between five and ten men) and their equipment. They are differentiated from APCswhich are purely "troop-transport" vehicles armed only for self-defencebecause they are designed to give direct fire support to the dismounted infantry and so usually have significantly enhanced armament. IFVs also often have improved armour and some have firing ports (allowing the infantry to fire personal weapons while mounted). They are typically armed with an autocannon of 20 to 57 mm calibre, 7.62mm machine guns, anti-tank guided missiles (ATGMs) and/or surface-to-air missiles (SAMs). IFVs are usually tracked, but some wheeled vehicles fall into this category. IFVs are generally less heavily armed and armoured than main battle tanks. They sometimes carry anti-tank missiles to protect and support infantry against armoured threats, such as the NATO TOW missile and Soviet Bastion, which offer a significant threat to tanks. Specially equipped IFVs have taken on some of the roles of light tanks; they are used by reconnaissance organizations, and light IFVs are used by airborne units which must be able to fight without the heavy firepower of tanks. Infantry mobility vehicle An infantry mobility vehicle (IMV) or protected patrol vehicle (PPV) is a wheeled armoured personnel carrier (APC) serving as a military patrol, reconnaissance or security vehicle. Examples include the ATF Dingo, AMZ Dzik, AMZ Tur, Mungo ESK, and Bushmaster IMV. This term also applies to the vehicles currently being fielded as part of the MRAP program. IMVs were developed in response to the threats of modern counterinsurgency warfare, with an emphasis on Ambush Protection and Mine-Resistance. Similar vehicles existed long before the term IMV was coined, such as the French VAB and South African Buffel. The term is coming more into use to differentiate light 4x4 wheeled APCs from the traditional 8x8 wheeled APCs. It is a neologism for what might have been classified in the past as an armoured scout car, such as the BRDM, but the IMV is distinguished by having a requirement to carry dismountable infantry. The up-armoured M1114 Humvee variant can be seen as an adaptation of the unarmoured Humvee to serve in the IMV role. Amphibious vehicles Many modern military vehicles, ranging from light wheeled command and reconnaissance, through armoured personnel carriers and tanks, are manufactured with amphibious capabilities. Contemporary wheeled armoured amphibians include the French Véhicule de l'Avant Blindé and Véhicule Blindé Léger. The latter is a small, lightly armoured 4×4 all-terrain vehicle that is fully amphibious and can swim at 5.4 km/h. The VAB (Véhicule de l'Avant Blindé – 'armoured vanguard vehicle') is a fully amphibious armoured personnel carrier powered in the water by two water jets, that entered service in 1976 and produced in numerous configurations, ranging from basic personnel carrier, anti-tank missile platform. During the Cold War the Soviet bloc states developed a number of amphibious APCs, fighting vehicles and tanks, both wheeled and tracked. Most of the vehicles the Soviets designed were amphibious, or could ford deep water. Wheeled examples are the BRDM-1 and BRDM-2 4x4 armoured scout cars, as well as the BTR-60, BTR-70, BTR-80 and BTR-94 8x8 armoured personnel carriers and the BTR-90 infantry fighting vehicle. The United States started developing a long line of Landing Vehicle Tracked (LVT) designs from . The US Marine Corps currently uses the AAV7-A1 Assault Amphibious Vehicle, which was to be succeeded by the Expeditionary Fighting Vehicle, which was capable of planing on water and can achieve water speeds of 37–46 km/h. The EFV project has been cancelled. A significant number of tracked armoured vehicles that are primarily intended for land-use, have some amphibious capability, tactically useful inland, reducing dependence on bridges. They use their tracks, sometimes with added propeller or water jets for propulsion. As long as the banks have a shallow enough slopes to enter or leave the water they can cross rivers and water obstacles. Some heavy tanks can operate amphibiously with a fabric skirt to add buoyancy. The Sherman DD tank used in the Normandy landings had this setup. When in water the waterproof float screen was raised and propellers deployed. Some modern vehicles use a similar skirt. Airborne vehicles Lightweight armoured fighting vehicles designed or modified to be carried by aircraft and delivered by air drop, helicopter lift, glider, or air landing with infantry to provide heavier tactical firepower and mobility. The air-equivalent to amphibious vehicles, the main advantage of airborne forces is their ability to be deployed into combat zones without land passage, as long as the airspace is accessible. Airborne vehicles are limited only by the tonnage capacity of their transport aircraft. Airborne vehicles typically lack the armour and supplies necessary for prolonged combat, so they are utilized for establishing an airhead to bring in larger forces before carrying out other combat objectives. One modern example is the German Wiesel AWC. The USA also created the M22 Locust as a way to aid paratroopers/ being paradropped in as it was very lightly armored and very small. Armoured engineering vehicle Modern engineering AFV's utilize chassis based on main battle tank platforms: these vehicles are as well armoured and protected as tanks, designed to keep up with tanks, breach obstacles to help tanks get to wherever it needs to be, perform utility functions necessary to expedite mission objectives of tanks, and to conduct other earth-moving and engineering work on the battlefield. These vehicles go by different names depending upon the country of use or manufacture. In the United States the term "combat engineer vehicle (CEV)" is used, in the United Kingdom the term "Armoured Vehicle Royal Engineers (AVRE)" is used, while in Canada and other commonwealth nations the term "armoured engineer vehicle (AEV)" is used. There is no set template for what such a vehicle will look like, yet likely features include a large dozer blade or mine ploughs, a large calibre demolition cannon, augers, winches, excavator arms and cranes, or lifting booms. Although the term "armoured engineer vehicle" is used specifically to describe these multi-purpose tank-based engineering vehicles, that term is also used more generically in British and Commonwealth militaries to describe all heavy tank-based engineering vehicles used in the support of mechanized forces. Thus, "armoured engineer vehicle" used generically would refer to AEV, AVLB, Assault Breachers, and so on. Good examples of this type of vehicle include the UK Trojan AVRE, the Russian IMR, and the US M728 Combat Engineer Vehicle. Breaching vehicle A breaching vehicle is especially designed to clear pathways for troops and other vehicles through minefields and along roadside bombs and other improvised explosive devices. These vehicles are equipped with mechanical or other means for the breaching of man-made obstacles. Common types of breaching vehicles include mechanical flails, mine plough vehicles, and mine roller vehicles. Armoured bulldozer The armoured bulldozer is a basic tool of combat engineering. These combat engineering vehicles combine the earth moving capabilities of the bulldozer with armour which protects the vehicle and its operator in or near combat. Most are civilian bulldozers modified by addition of vehicle armour/military equipment, but some are tanks stripped of armament and fitted with a dozer blade. Some tanks have bulldozer blades while retaining their armament, but this does not make them armoured bulldozers as such, because combat remains the primary role – earth moving is a secondary task. Armoured recovery vehicle An armoured recovery vehicle (ARV) is a type of vehicle recovery armoured fighting vehicle used to repair battle- or mine-damaged as well as broken-down armoured vehicles during combat, or to tow them out of the danger zone for more extensive repairs. To this end the term armoured repair and recovery vehicle (ARRV) is also used. ARVs are normally built on the chassis of a main battle tank (MBT), but some are also constructed on the basis of other armoured fighting vehicles, mostly armoured personnel carriers (APCs). ARVs are usually built on the basis of a vehicle in the same class as they are supposed to recover; a tank-based ARV is used to recover tanks, while an APC-based one recovers APCs, but does not have the power to tow a much heavier tank. Armoured vehicle-launched bridge An armoured vehicle-launched bridge (AVLB) is a combat support vehicle, sometimes regarded as a subtype of combat engineering vehicle, designed to assist militaries in rapidly deploying tanks and other armoured fighting vehicles across rivers. The AVLB is usually a tracked vehicle converted from a tank chassis to carry a folding metal bridge instead of weapons. The AVLB's job is to allow armoured or infantry units to cross water, when a river too deep for vehicles to wade through is reached, and no bridge is conveniently located (or sufficiently sturdy, a substantial concern when moving 60-ton tanks). The bridge layer unfolds and launches its cargo, providing a ready-made bridge across the obstacle in only minutes. Once the span has been put in place, the AVLB vehicle detaches from the bridge, and moves aside to allow traffic to pass. Once all of the vehicles have crossed, it crosses the bridge itself and reattaches to the bridge on the other side. It then retracts the span ready to move off again. A similar procedure can be employed to allow crossings of small chasms or similar obstructions. AVLBs can carry bridges of or greater in length. By using a tank chassis, the bridge layer is able to cover the same terrain as main battle tanks, and the provision of armour allows them to operate even in the face of enemy fire. However, this is not a universal attribute: some exceptionally sturdy 6x6 or 8x8 truck chassis have lent themselves to bridge-layer applications. Combat engineer section carriers Combat engineer section carriers are used to transport sappers (combat engineers) and can be fitted with bulldozers' blades and other mine-breaching devices. They are often used as APCs because of their carrying ability and heavy protection. They are usually armed with machine guns and grenade launchers and usually tracked to provide enough tractive force to push blades and rakes. Some examples are the U.S. M113 APC, IDF Puma, Nagmachon, Husky, and U.S. M1132 ESV (a Stryker variant). Air defence vehicles An anti-aircraft vehicle, also known as a self-propelled anti-aircraft gun (SPAAG) or self-propelled air defense system (SPAD), is a mobile vehicle with a dedicated anti-aircraft capability. Specific weapon systems used include machine guns, anti-aircraft autocannons, larger anti-air guns, or surface-to-air-missiles, and some mount both guns and longer-ranged missiles (e.g. the Pantsir-S1). Platforms used include both trucks and heavier combat vehicles such as armored personnel carriers and tanks, which add protection from aircraft, artillery, and small arms fire for front line deployment. Anti-aircraft guns are usually mounted in a quickly-traversing turret with a high rate of elevation, for tracking fast-moving aircraft. They are often in dual or quadruple mounts, allowing a high rate of fire. In addition, most anti-aircraft guns can be used in a direct-fire role against surface targets to great effect. In the early 21st century, missiles (generally mounted on similar turrets) largely supplanted anti-aircraft guns, though guns have recently shown revived utility against slow, low-flying drones. Artillery tractor An artillery tractor, also referred to as a gun tractor, is a specialized heavy-duty form of tractor unit used to tow artillery pieces of varying weights and calibres. It may be wheeled, tracked, or half-tracked. There are two main types of artillery tractors, depending on the type of traction: wheeled and tracked. Wheeled tractors are usually variations of lorries adapted for military service. Tracked tractors run on continuous track; in some cases are built on a modified tank chassis with the superstructure replaced with a compartment for the gun crew or ammunition. In addition, half-track tractors were used in the interwar period and in World War II, especially by the Wehrmacht. This type of tractor was mostly discontinued postwar. Self-propelled artillery Self-propelled artillery vehicles give mobility to artillery. Within the term are covered self-propelled guns (or howitzers) and rocket artillery. They are highly mobile, usually based on tracked chassis carrying either a large howitzer or other field gun or alternatively a mortar or some form of rocket or missile launcher. They are usually used for long-range indirect bombardment support on the battlefield. In the past, self-propelled artillery has included direct-fire "Gun Motor Carriage" vehicles, such as assault guns and tank destroyers (also known as self-propelled anti-tank guns). These have been heavily armoured vehicles, the former providing danger-close fire-support for infantry and the latter acting as specialized anti-tank vehicles. Modern self-propelled artillery vehicles may superficially resemble tanks, but they are generally lightly armoured, too lightly to survive in direct-fire combat. However, they protect their crews against shrapnel and small arms and are therefore usually included as armoured fighting vehicles. Many are equipped with machine guns for defence against enemy infantry. The key advantage of self-propelled over towed artillery is that it can be brought into action much faster. Before towed artillery can be used, it has to stop, unlimber and the guns set up. To move position, the guns must be limbered up again and brought – usually towed – to the new location. By comparison, self-propelled artillery in combination with modern communications, can stop at a chosen location and begin firing almost immediately, then quickly move on to a new position. This ability is very useful in a mobile conflict and particularly on the advance. Conversely, towed artillery was and remains cheaper to build and maintain. It is also lighter and can be taken to places that self-propelled guns cannot reach, so despite the advantages of the self-propelled artillery, towed guns remain in the arsenals of many modern armies. Assault gun An assault gun is a gun or howitzer mounted on a motor vehicle or armoured chassis, designed for use in the direct fire role in support of infantry when attacking other infantry or fortified positions. Historically, the custom-built fully armoured assault guns usually mounted the gun or howitzer in a fully enclosed casemate on a tank chassis. The use of a casemate instead of a gun turret limited these weapons' field of fire, but allowed a larger gun to be fitted relative to the chassis, more armour to be fitted for the same weight, and provided a cheaper construction. In most cases, these turretless vehicles also presented a lower profile as a target for the enemy. Self-propelled siege mortar A siege mortar is a form of self-propelled gun that holds a siege mortar. The only siege mortar ever built was the Karl-Gerät. It could be argued that these could be classified as a Mortar carrier. Mortar carrier A mortar carrier is a self-propelled artillery vehicle carrying a mortar as its primary weapon. Mortar carriers cannot be fired while on the move and some must be dismounted to fire. In U.S. Army doctrine, mortar carriers provide close and immediate indirect fire support for maneuver units while allowing for rapid displacement and quick reaction to the tactical situation. The ability to relocate not only allows fire support to be provided where it is needed faster, but also allows these units to avoid counter-battery fire. Mortar carriers have traditionally avoided direct contact with the enemy. Many units report never using secondary weapons in combat. Prior to the Iraq War, American 120 mm mortar platoons reorganized from six M1064 mortar carriers and two M577 fire direction centres (FDC) to four M1064 and one FDC. The urban environment of Iraq made it difficult to utilize mortars. New technologies such as mortar ballistic computers and communication equipment and are being integrated. Modern era combat is becoming more reliant on direct fire support from mortar carrier machine guns. Multiple rocket launcher A multiple rocket launcher is a type of unguided rocket artillery system. Like other rocket artillery, multiple rocket launchers are less accurate and have a much lower (sustained) rate of fire than batteries of traditional artillery guns. However, they have the capability of simultaneously dropping many hundreds of kilograms of explosive, with devastating effect. The Korean Hwacha is an example of an early weapon system with a resemblance to the modern-day multiple rocket launcher. The first self-propelled multiple rocket launchers – and arguably the most famous – were the Soviet BM-13 Katyushas, first used during World War II and exported to Soviet allies afterwards. They were simple systems in which a rack of launch rails was mounted on the back of a truck. This set the template for modern multiple rocket launchers. The first modern multiple rocket launcher was the German 15 cm Nebelwerfer 41 of the 1930s, a small towed artillery piece. Only later in World War II did the British deploy similar weapons in the form of the Land Mattress.The Americans mounted tubular launchers atop M4 Sherman tanks to create the T34 Calliope rocket launching tank, only used in small numbers, as their closest equivalent to the Katyusha. Missile vehicle Missile vehicles are trucks or tractor units designed to carry rockets or missiles. The missile vehicle may be a self-propelled unit, or the missile holder/launcher may be on a trailer towed by a prime mover. They are used in the military forces of a number of countries in the world. Long missiles are commonly transported parallel to the ground on these vehicles, but elevated into an inclined or vertical position for launching. A Transporter erector launcher (TEL) is a missile vehicle with an integrated prime mover (tractor unit) that can carry, elevate to firing position and launch one or more missiles. Such vehicles exist for both surface-to-air missiles and surface-to-surface missiles. Tank destroyer Tank destroyers and tank hunters are armed with an anti-tank gun or anti-tank missile launcher, and are designed specifically to engage enemy armoured vehicles. Many have been based on a tracked tank chassis, while others are wheeled. Since World War II, main battle tanks have largely replaced gun-armed tank destroyers; although lightly armoured anti-tank guided missile (ATGM) carriers are commonly used for supplementary long-range anti-tank engagements. In post-Cold War conflict, the resurgence of expeditionary warfare has seen the emergence of gun-armed wheeled vehicles, sometimes called "protected gun systems", which may bear a superficial resemblance to tank destroyers, but are employed as direct fire support units typically providing support in low intensity operations such as Iraq and Afghanistan. These have the advantage of easier deployment, as only the largest air transports can carry a main battle tank, and their smaller size makes them more effective in urban combat. Many forces' IFVs carry anti-tank missiles in every infantry platoon, and attack helicopters have also added anti-tank capability to the modern battlefield. But there are still dedicated anti-tank vehicles with very heavy long-range missiles, or intended for airborne use. There have also been dedicated anti-tank vehicles built on ordinary armoured personnel carrier or armoured car chassis. Examples include the U.S. M901 ITV (Improved TOW Vehicle) and the Norwegian NM142, both on an M113 chassis, several Soviet ATGM launchers based on the BRDM scout car, the British FV438 Swingfire and FV102 Striker and the German Raketenjagdpanzer series built on the chassis of the HS 30 and Mardar IFVs. Armoured train An armoured train is a railway train protected with armour. They are usually equipped with rail cars armed with artillery, autocannons, machine guns, tank turrets and anti-aircraft guns. They were mostly used during the late 19th to mid-20th century, when they offered an innovative way to quickly move large amounts of firepower. Their use was discontinued in most countries when road vehicles became much more powerful and offered more flexibility, and because armoured trains were too vulnerable to track sabotage and attacks from the air. However, the Russian Federation used improvised armoured trains in the Second Chechen War in the late 1990s and 2000s. Armoured trains carrying ballistic missiles have also been used. The rail cars on an armoured train were designed for many tasks, such as carrying artillery and machine guns, infantry units, anti-tank and anti-aircraft guns. During World War II, the Germans would sometimes put a Fremdgerät (captured AFVs such as the French Somua S-35 or Czech PzKpfw 38(t)), or obsolescent Panzer II light tanks on a flatbed rail car, which could quickly be offloaded by means of a ramp and used away from the railway line to chase down enemy partisans. Different types of armour were used to protect armoured trains from attack. In addition to various metal plates, concrete and sandbags were used in some cases on armoured trains. Armoured trains were sometimes escorted by a kind of rail-tank called a draisine. One such example was the Italian 'Littorina' armoured trolley, which had a cab in the front and rear, each with a control set so it could be driven down the tracks in either direction. Littorina mounted two dual 7.92mm MG13 machine gun turrets from Panzer I light tanks. See also References Sources External links US Wheeled armoured fighting vehicles Military vehicles by type

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https://en.wikipedia.org/wiki/All%20Quiet%20on%20the%20Western%20Front

All Quiet on the Western Front

All Quiet on the Western Front () is a novel by Erich Maria Remarque, a German veteran of World War I. The book describes the German soldiers' extreme physical and mental trauma during the war as well as the detachment from civilian life felt by many upon returning home from the war. The novel was first published in November and December 1928 in the German newspaper and in book form in late January 1929. The book and its sequel, The Road Back (1930), were among the books banned and burned in Nazi Germany. All Quiet on the Western Front sold 2.5 million copies in 22 languages in its first 18 months in print. Three film adaptations of the book have been made, each of which was lauded. The 1930 American adaptation, directed by Lewis Milestone, won two Academy Awards. The 1979 British-American adaptation, a television film by Delbert Mann, won a Golden Globe Award and an Emmy Award. The 2022 German adaptation, directed by Edward Berger, won four Academy Awards. Title and translation The English translation by Arthur Wesley Wheen gives the title as All Quiet on the Western Front. The literal translation of "" is "Nothing New in the West," with "West" being the Western Front; the phrase refers to the content of an official communiqué at the end of the novel. Brian Murdoch's 1993 translation rendered the phrase as "there was nothing new to report on the Western Front" within the narrative. However, in the foreword, he explains his retention of the original book title: Although it does not match the German exactly, Wheen's title has justly become part of the English language and is retained here with gratitude. The phrase "" has become a colloquial expression meaning stagnation, or lack of visible change, in any context. Murdoch also explains how, due to the time it was published, Wheen's translation was obliged to Anglicise some lesser-known German references and lessen the impact of certain passages, while omitting others entirely. Murdoch's translation is more accurate to the original text and completely unexpurgated. Plot summary The book centers on Paul Bäumer, a German soldier on the Western Front during World War I. At the start of the book, Paul lives with his parents and sister in a charming German village. He attends school, where the patriotic speeches of his teacher Kantorek lead the whole class to volunteer for the Imperial German Army shortly after the start of The Great War. At the training camp, where they meet Himmelstoß, his class is scattered over the platoons amongst Frisian fishermen, peasants, and labourers, with whom they soon become friends. Bäumer arrives at the Western Front with his friends and schoolmates (Leer, Müller, Kropp, Kemmerich and a number of other characters). There, they meet Stanislaus Katczinsky, an older soldier nicknamed Kat, who becomes Paul's mentor. While fighting at the front, Bäumer and his comrades engage in frequent battles and endure the treacherous and filthy conditions of trench warfare. The battles fought here have no names and seem to have little overall significance, except for the impending possibility of injury or death. Only meager pieces of land are gained, which are often lost again later. Remarque often refers to the living soldiers as old and dead, emotionally drained and shaken. "We are not youth any longer. We don't want to take the world by storm. We are fleeing from ourselves, from our life. We were eighteen and had begun to love life and the world; and we had to shoot it to pieces". Paul visits home, and the contrast with civilian life highlights the cost of the war on his psyche. The town has not changed since he went off to war, but he has: he finds that he does "not belong here anymore, it is a foreign world". He feels disconnected from most of the townspeople. His father asks him "stupid and distressing" questions about his war experiences, not understanding "that a man cannot talk of such things". An old schoolmaster lectures him about strategy and advancing to Paris while insisting that Paul and his friends know only their "own little sector" of the war but nothing of the big picture. Indeed, the only person he remains connected to is his dying mother, with whom he shares a tender, yet restrained relationship. The night before he is to return from leave, he stays up with her, exchanging small expressions of love and concern for each other. He thinks to himself, "Ah! Mother, Mother! How can it be that I must part from you? Here I sit and there you are dying; we have so much to say, and we shall never say it." In the end, he concludes that he "ought never to have come [home] on leave". Paul is glad to return and reunite with his comrades. Soon after, he volunteers to go on a patrol and kills a man in hand-to-hand combat for the first time. He watches the man die slowly in agony for hours. He is remorseful and devastated, asking for forgiveness from the man's corpse. He later confesses to Kat and Albert, who try to comfort him and reassure him that it is only part of the war. Afterwards, they are sent on what Paul calls a "good job". They must guard a supply depot in a village that was evacuated due to being shelled too heavily. During this time, the men are able to adequately feed themselves, unlike the near-starvation conditions in the German trenches. In addition, the men enjoy themselves while living off the spoils from the village and officers' luxuries from the supply depot (such as fine cigars). While evacuating the villagers (enemy civilians), Paul and Albert are taken by surprise by artillery fired at the civilian convoy and are wounded by a shell. On the train back home, Albert takes a turn for the worse and cannot complete the journey, and instead is sent off the train to recuperate in a Catholic hospital. By a combination of bartering and manipulation, Paul manages to stay together with Albert. Albert eventually has his leg amputated, while Paul is deemed fit for service and returned to the front. By now, the war is nearing its end and the German Army is retreating. In despair, Paul watches as his friends fall one by one. Kat's death is the last straw that finally causes Paul to lose his will to live. In the final chapter, he comments that peace is coming soon, but he does not see the future as bright and shining with hope. Paul feels that he has no aims left in life and that their generation will be different and misunderstood. In October 1918, Paul is finally killed on a remarkably peaceful day. The situation report from the frontline states a simple phrase: "All quiet on the Western Front." Paul's corpse displays a calm expression on its face, "as though almost glad the end had come." Themes At the beginning of the book, Remarque writes, "This book is to be neither an accusation nor a confession, and least of all an adventure, for death is not an adventure to those who stand face to face with it. It will try simply to tell of a generation of men who, even though they may have escaped (its) shells, were destroyed by the war." The book does not focus on heroic stories of bravery, but rather gives a view of the conditions in which the soldiers find themselves. The monotony between battles, the constant threat of artillery fire and bombardments, the struggle to find food, the lack of training of young recruits (meaning lower chances of survival), and the overarching role of random chance in the lives and deaths of the soldiers are described in detail. One of the major themes of the novel is the difficulty experienced by former soldiers trying to revert to civilian life after having experienced extreme combat situations. This internal destruction can be found as early as the first chapter as Paul comments that, although all the boys are young, their youth has already left them. In addition, the massive loss of life and negligible gains from the fighting are constantly emphasized. Soldiers' lives are thrown away by their commanding officers who are stationed comfortably away from the front, ignorant of and indifferent to the suffering and terror of the front lines. Another major theme is the concept of blind nationalism. Remarque often emphasizes that the boys were not forced to join the war effort against their will, but rather by a sense of patriotism and pride. Kantorek called Paul's platoon the "Iron Youth", teaching his students a romanticized version of warfare with glory and duty to the Fatherland. It is only when the boys go to war and have to live and fight in dirty, cramped trenches with little protection from enemy bullets and shells while contending with hunger and sickness that they realize just how dispiriting it is to actually serve in the army. Main characters Paul Bäumer The main character and central figure of the novel. Albert Kropp Kropp is in Paul's class at school and is described as the clearest thinker of the group as well as the smallest. Kropp is wounded towards the end of the novel and undergoes a leg amputation. Both he and Bäumer end up spending time in a Catholic hospital together, Bäumer suffering from shrapnel wounds to the leg and arm. Although Kropp initially plans to commit suicide if he requires an amputation, he postponed suicide because of the strength of military camaraderie and a lack of a revolver. Kropp and Bäumer part ways when Bäumer is recalled to his regiment after recovering. Paul comments that saying farewell was "very hard, but it is something a soldier learns to deal with." Haie Westhus Haie is tall and strong with a good sense of humor, and a peat-digger by profession. His size and behavior make him seem older than Paul, yet he is the same age as Paul and his school-friends, who are roughly 19 at the start of the book. During combat, he is fatally injured in his back (Chapter 6)—the resulting wound is large enough for Paul to see Haie's breathing lung while Himmelstoß (Himmelstoss) carries him to safety. He later dies of this injury. Friedrich Müller Müller is one of Bäumer's classmates, and is 19 when he also volunteers to join the German army. Carrying his old school books with him to the battlefield, he constantly reminds himself of the importance of learning and education. Even while under enemy fire, he "mutters propositions in physics." He takes a liking to Kemmerich's boots and inherits them when Kemmerich dies early in the novel. He is killed later after being shot point-blank in the stomach with a "light pistol" (flare gun). As he was dying "quite conscious and in terrible pain", he gave his boots which he inherited from Kemmerich to Paul. Stanislaus "Kat" Katczinsky Katczinsky, a recalled reserve militiaman, was a cobbler in civilian life. He is older than Paul Bäumer and his comrades, about 40 years old, and serves as their leadership figure. He also represents a literary model highlighting the differences between the younger and older soldiers. While the older men have already had a life of professional and personal experience before the war, Paul and the men of his age have had little life experience or time for personal growth. Kat is well known for his ability to scavenge nearly any item needed, especially food. At one point he secures four boxes of lobster. Paul describes Kat as possessing a sixth sense. One night, Paul along with a group of other soldiers are held up in a factory with neither rations nor comfortable bedding. Katczinsky leaves for a short while, returning with straw to put over the bare wires of the beds. Later, to feed the hungry men, Kat brings bread, a bag of horse flesh, a lump of fat, a pinch of salt and a pan in which to cook the food. Kat is hit by shrapnel near the end of the story, leaving him with a smashed shin. Paul carries him back to camp on his back, only to discover upon their arrival that a stray splinter had hit Kat in the back of the head and killed him on the way. He is thus the last of Paul's close friends to die in battle. It is Kat's death that eventually makes Bäumer indifferent as to whether he survives the war or not, yet certain that he can face the rest of his life without fear. "Let the months and the years come, they can take nothing from me, they can take nothing more. I am so alone, and so without hope that I can confront them without fear." Tjaden One of Bäumer's non-schoolmate friends. Before the war, Tjaden was a locksmith. A big eater with a grudge against the former postman-turned-corporal Himmelstoß (thanks to his strict "disciplinary actions"), he manages to forgive Himmelstoß later in the book. Throughout the book, Paul frequently remarks on how much of an eater he is, yet somehow manages to stay as "thin as a rake". He appears in the sequel, The Road Back. Secondary characters Kantorek Kantorek is the schoolmaster of Paul and his friends, including Kropp, Leer, Müller, and Behm. Behaving "in a way that cost [him] nothing," Kantorek is a strong supporter of the war and encourages Bäumer and other students in his class to join the war effort. Kantorek is a hypocrite, urging the young men he teaches to fight in the name of patriotism, while not voluntarily enlisting himself. In a twist of fate, Kantorek is later drafted. He reluctantly joins the ranks of his former students, where he is drilled and taunted by Mittelstädt, one of the students he had earlier persuaded to enlist. Peter Leer Leer is an intelligent soldier in Bäumer's company, and one of his classmates. He is very popular with women; when he and his comrades meet three French women, he is the first to seduce one of them. Bäumer describes Leer's ability to attract women by saying "Leer is an old hand at the game". In chapter 11, Leer is hit by a shell fragment, which also hits Bertinck. The shrapnel tears open Leer's hip, causing him to bleed to death quickly. His death causes Paul to ask himself, "What use is it to him now that he was such a good mathematician in school?" Bertinck Lieutenant Bertinck is the leader of Bäumer's company. His men have a great respect for him, and Bertinck has great respect for his men. In the beginning of the book, he permits them to eat the rations of the men that had been killed in action, standing up to the chef Ginger who allowed them only their allotted share. Bertinck is genuinely despondent when he learns that few of his men had survived an engagement. When he and the other characters are trapped in a trench under heavy attack, Bertinck, who has been injured in the firefight, spots a flamethrower team advancing on them. He gets out of cover and takes aim on the flamethrower but misses, and gets hit by enemy fire. With his next shot he kills the flamethrower, and immediately afterwards an enemy shell explodes on his position blowing off his chin. The same explosion also fatally wounds Leer. Himmelstoß Sergeant der Reserve Himmelstoß (which translates as "Heaven-Bound") was a village postman before being mobilised for the war and securing a position as a Sergeant in the Landwehr (Reserves of persons 28-39). Himmelstoß is a power-hungry martinet who compensated for his lack of social standing by abusing his position as the Training NCO for the men under his control, taking sadistic pleasure in punishing the minor infractions of his trainees during their basic training in preparation for their deployment. He had a special contempt for Paul and his friends, because they knew him as their local postman. Paul later figures that the training taught by Himmelstoß made them "hard, suspicious, pitiless, and tough" but most importantly it taught them comradeship. Bäumer and his comrades exact their revenge on Himmelstoß, mercilessly whipping him on the night before they depart for the front. Himmelstoß later joins them at the front, revealing himself as a coward by pretending to be wounded because of a scratch on his face. Paul Bäumer beats him because of it and when a lieutenant comes along looking for men for a trench charge, Himmelstoß joins and leads the charge. He carries Haie Westhus's body to Bäumer after he is fatally wounded. Matured and repentant through his experiences, Himmelstoß later asks for forgiveness from his previous charges. As he becomes the new staff cook, to prove his friendship he secures two pounds of sugar for Bäumer and half a pound of butter for Tjaden. In the 1979 film adaptation, he is referred to as "Corporal" and wears a post 1941 shoulderboard for "Unteroffizier", a very junior NCO. In the book, he was a "Sergeant" or "Unterfeldwebel", a rank reserved for long serving "Unteroffiziere" who fulfilled a staff role such as quartermaster, cook, clerks etc. Detering Detering is a farmer who constantly longs to return to his wife and farm. He is fond of horses and is angered when he sees them used in combat. He says, "It is of the vilest baseness to use horses in the war," when the group hears several wounded horses writhe and scream for a long time before dying during a bombardment. He tries to shoot them to put them out of their misery, but is stopped by Kat to keep their current position hidden. He is driven to desert when he sees a cherry tree in blossom, which reminds him of home. He is found by military police and court-martialed and is never heard from again. Josef Hamacher Hamacher is a patient at the Catholic hospital where Paul and Albert Kropp are temporarily stationed. He has an intimate knowledge of the workings of the hospital. He also has a "Special Permit", certifying him as sporadically not responsible for his actions due to a head wound, though he is clearly quite sane and exploiting his permit so he can stay in the hospital and away from the war as long as possible. Franz Kemmerich Just 19 years old, Franz Kemmerich had enlisted with his best friend and classmate, Bäumer. Kemmerich is shot in the leg early in the story; his injured leg has to be amputated, and he dies shortly after. In anticipation of Kemmerich's imminent death, Müller was eager to get his boots. While in the hospital, someone steals Kemmerich's watch that he intended to give to his mother, causing him great distress and prompting him to ask about his watch every time his friends visit him in the hospital. Paul later finds the watch and hands it over to Kemmerich's mother, and lies to her that Franz died instantly and painlessly. Joseph Behm Youthful and overweight, Behm was the only student in Paul's class that was not quickly influenced by Kantorek's patriotism to join the war. Eventually, after pressure from friends and Kantorek, he joins the war. He is the first of Paul's friends to die. He is blinded in no man's land and believed to be dead by his friends. The next day, when he is seen walking blindly around no man's land, it is discovered that he was only unconscious, but he is killed before he can be rescued. Publication and reception From November 10 to December 9, 1928, All Quiet on the Western Front was published in serial form in Vossische Zeitung magazine. It was released in book form the following year to great success, selling one and a half million copies that same year. It was the best-selling work of fiction in America for the year 1929, according to Publishers Weekly. Although publishers had worried that interest in World War I had waned more than 10 years after the armistice, Remarque's realistic depiction of trench warfare from the perspective of young soldiers struck a chord with the war's survivors—soldiers and civilians alike—and provoked strong reactions, both positive and negative, around the world. With All Quiet on the Western Front, Remarque emerged as an eloquent spokesman for a generation that had been, in his own words, "destroyed by war, even though it might have escaped its shells." Remarque's harshest critics, in turn, were his countrymen, many of whom felt the book denigrated the German war effort, and that Remarque had exaggerated the horrors of war to further his pacifist agenda. The strongest voices against Remarque came from the emerging Nazi Party and its ideological allies. In 1933, when the Nazis rose to power, All Quiet on the Western Front became one of the first degenerate books to be publicly burnt; in 1930, screenings of the Academy Award-winning film based on the book were met with Nazi-organized protests and mob attacks on both movie theatres and audience members. Objections to Remarque's portrayal of the World War I German soldiers were not limited to those of the Nazis in 1933. Dr. was concerned about Remarque's depiction of the medical personnel as being inattentive, uncaring, or absent from frontline action. Kroner was specifically worried that the book would perpetuate German stereotypes abroad that had subsided since the First World War. He offered the following clarification: "People abroad will draw the following conclusions: if German doctors deal with their own fellow countrymen in this manner, what acts of inhumanity will they not perpetuate against helpless prisoners delivered up into their hands or against the populations of occupied territory?" A fellow patient of Remarque's in the military hospital in Duisburg objected to the negative depictions of the nuns and patients and to the general portrayal of soldiers: "There were soldiers to whom the protection of homeland, protection of house and homestead, protection of family were the highest objective, and to whom this will to protect their homeland gave the strength to endure any extremities." These criticisms suggest that experiences of the war and the personal reactions of individual soldiers to their experiences may be more diverse than Remarque portrays them; however, it is beyond question that Remarque gives voice to a side of the war and its experience that was overlooked or suppressed at the time. This perspective is crucial to understanding the true effects of World War I. The evidence can be seen in the lingering depression that Remarque and many of his friends and acquaintances were suffering a decade later. The book was also banned in other European countries on the grounds that it was considered anti-war propaganda; Austrian soldiers were forbidden from reading the book in 1929, and Czechoslovakia banned it from its military libraries. The Italian translation was also banned in 1933. When the Nazis were re-militarizing Germany, the book was banned as it was deemed counterproductive to German rearmament. In contrast, All Quiet on the Western Front was trumpeted by pacifists as an anti-war book. Remarque makes a point in the opening statement that the novel does not advocate any political position, but is merely an attempt to describe the experiences of the soldier. Much of the literary criticism came from Salomo Friedlaender, who wrote a book Hat Erich Maria Remarque wirklich gelebt? "Did Erich Maria Remarque really live?" (under the pen name Mynona), which was, in its turn, criticized in: Hat Mynona wirklich gelebt? "Did Mynona really live?" by Kurt Tucholsky. Friedlaender's criticism was mainly personal in nature—he attacked Remarque as being egocentric and greedy. Remarque publicly stated that he wrote All Quiet on the Western Front for personal reasons, not for profit, as Friedlaender had charged. Adaptations Film All Quiet on the Western Front, a 1930 American film directed by Lewis Milestone, starring Louis Wolheim, Lew Ayres, John Wray, Arnold Lucy, and Ben Alexander. Recipient of two Oscars, including Best Picture at the 3rd Academy Awards. All Quiet on the Western Front, a 2022 German film directed by Edward Berger, starring Felix Kammerer and Albrecht Schuch. Nominated for nine Oscars, including Best Picture, at the 95th Academy Awards, and winning seven British Academy Film Awards and four Oscars. Television film All Quiet on the Western Front, a 1979 CBS television film by Delbert Mann, starring Richard Thomas and Ernest Borgnine. Music "All Quiet on the Western Front", a song from Elton John's 1982 album Jump Up!, written by Elton and Bernie Taupin. Radio All Quiet on the Western Front, a 2008 radio adaptation broadcast on BBC Radio 3, starring Robert Lonsdale and Shannon Graney, written by Dave Sheasby, and directed by David Hunter. Audiobooks All Quiet on the Western Front, a 2000 Recorded Books audiobook of the text, read by Frank Muller. All Quiet on the Western Front, a 2010 Hachette Audio UK audiobook narrated by Tom Lawrence. Comics "All Quiet on the Western Front", a 1952 comic book adaptation as part of the Classics Illustrated series. See also Bildungsroman List of books with anti-war themes References External links CliffsNotes Spark Notes Schneider, Thomas: All Quiet on the Western Front (novel) (2014) at 1914–1918-online: International Encyclopedia of the First World War. 1929 German-language novels 1929 German novels Anti-war novels Censored books German novels adapted into films Novels adapted into comics German novels adapted into television shows Novels adapted into radio programs Novels by Erich Maria Remarque Novels first published in serial form Works originally published in Vossische Zeitung Novels set during World War I Novels set in Europe Little, Brown and Company books

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https://en.wikipedia.org/wiki/Afrikaans

Afrikaans

Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e. the Hollandic dialect) used by Dutch, French, and German settlers and people enslaved by them. Afrikaans gradually began to develop distinguishing characteristics during the course of the 18th century. Now spoken in South Africa, Namibia and (to a lesser extent) Botswana, Zambia and Zimbabwe, estimates of the total number of Afrikaans speakers range between 15 and 23 million. Most linguists consider Afrikaans to be a partly creole language. An estimated 90% to 95% of the vocabulary is of Dutch origin, with adopted words from other languages, including German and the Khoisan languages of Southern Africa. Differences with Dutch include a more analytic-type morphology and grammar, and some pronunciations. There is a large degree of mutual intelligibility between the two languages, especially in written form. About 13.5% of the South African population (7 million people) speak Afrikaans as a first language, making it the third most common natively-spoken language in the country, after Zulu and Xhosa. It has the widest geographic and racial distribution of the 11 official languages and is widely spoken and understood as a second or third language, although Zulu and English are estimated to be understood as a second language by a much larger proportion of the population. It is the majority language of the western half of South Africa—the provinces of the Northern Cape and Western Cape—and the first language of 75.8% of Coloured South Africans (4.8 million people), 60.8% of Whites (2.7 million people), 1.5% of Blacks (600,000 people), and 4.6% of Indians (58,000 people). Etymology The name of the language comes directly from the Dutch word (now spelled ) meaning "African". It was previously referred to as "Cape Dutch" (Kaap-Hollands/Kaap-Nederlands), a term also used to refer to the early Cape settlers collectively, or the derogatory "kitchen Dutch" (kombuistaal) from its use by slaves of colonial settlers "in the kitchen". History Origin The Afrikaans language arose in the Dutch Cape Colony, through a gradual divergence from European Dutch dialects, during the course of the 18th century. As early as the mid-18th century and as recently as the mid-20th century, Afrikaans was known in standard Dutch as a "kitchen language" (), lacking the prestige accorded, for example, even by the educational system in Africa, to languages spoken outside Africa. Other early epithets setting apart ("Cape Dutch", i.e. Afrikaans) as putatively beneath official Dutch standards included , and ("mutilated/broken/uncivilised Dutch"), as well as ("incorrect Dutch"). Den Besten theorises that modern Standard Afrikaans derives from two sources: Cape Dutch, a direct transplantation of European Dutch to Southern Africa, and 'Hottentot Dutch', a pidgin that descended from 'Foreigner Talk' and ultimately from the Dutch pidgin spoken by slaves, via a hypothetical Dutch creole. Thus in his view Afrikaans is neither a creole nor a direct descendant of Dutch, but a fusion of two transmission pathways. Development Most of the first settlers whose descendants today are the Afrikaners were from the United Provinces (now Netherlands), with up to one-sixth of the community of French Huguenot origin, and a seventh from Germany. African and Asian workers, Cape Coloured children of European settlers and Khoikhoi women, and slaves contributed to the development of Afrikaans. The slave population was made up of people from East Africa, West Africa, India, Madagascar, and the Dutch East Indies (modern Indonesia). A number were also indigenous Khoisan people, who were valued as interpreters, domestic servants, and labourers. Many free and enslaved women married or cohabited with the male Dutch settlers. M. F. Valkhoff argued that 75% of children born to female slaves in the Dutch Cape Colony between 1652 and 1672 had a Dutch father. Sarah Grey Thomason and Terrence Kaufman argue that Afrikaans' development as a separate language was "heavily conditioned by nonwhites who learned Dutch imperfectly as a second language." Beginning in about 1815, Afrikaans started to replace Malay as the language of instruction in Muslim schools in South Africa, written with the Arabic alphabet: see Arabic Afrikaans. Later, Afrikaans, now written with the Latin script, started to appear in newspapers and political and religious works in around 1850 (alongside the already established Dutch). In 1875, a group of Afrikaans-speakers from the Cape formed the ("Society for Real Afrikaners"), and published a number of books in Afrikaans including grammars, dictionaries, religious materials and histories. Until the early 20th century, Afrikaans was considered a Dutch dialect, alongside Standard Dutch, which it eventually replaced as an official language. Before the Boer wars, "and indeed for some time afterwards, Afrikaans was regarded as inappropriate for educated discourse. Rather, Afrikaans was described derogatorily as 'a kitchen language' or 'a bastard jargon', suitable for communication mainly between the Boers and their servants." Recognition In 1925, Afrikaans was recognised by the South African government as a distinct language, rather than simply a vernacular of Dutch. On 8 May 1925, twenty-three years after the Second Boer War ended, the Official Languages of the Union Act of 1925 was passed—mostly due to the efforts of the Afrikaans-language movement—at a joint sitting of the House of Assembly and the Senate, in which the Afrikaans language was declared a variety of Dutch. The Constitution of 1961 reversed the position of Afrikaans and Dutch, so that English and Afrikaans were the official languages, and Afrikaans was deemed to include Dutch. The Constitution of 1983 removed any mention of Dutch altogether. The Afrikaans Language Monument is located on a hill overlooking Paarl in the Western Cape Province. Officially opened on 10 October 1975, it was erected on the 100th anniversary of the founding of the Society of Real Afrikaners, and the 50th anniversary of Afrikaans being declared an official language of South Africa in distinction to Dutch. Standardisation The earliest Afrikaans texts were some doggerel verse from 1795 and a dialogue transcribed by a Dutch traveller in 1825. Afrikaans used the Latin alphabet around this time, although the Cape Muslim community used the Arabic script. In 1861, L.H. Meurant published his ("Conversation between Nicholas Truthsayer and John Doubter"), which is considered to be the first book published in Afrikaans. The first grammar book was published in 1876; a bilingual dictionary was later published in 1902. The main modern Afrikaans dictionary in use is the (HAT). A new authoritative dictionary, called (WAT), was under development as of 2018. The official orthography of Afrikaans is the , compiled by . The Afrikaans Bible The Afrikaners primarily were Protestants, of the Dutch Reformed Church of the 17th century. Their religious practices would later be influenced in South Africa by British ministries during the 1800s. A landmark in the development of the language was the translation of the whole Bible into Afrikaans. While significant advances had been made in the textual criticism of the Bible, especially the Greek New Testament, the 1933 translation followed the Textus Receptus and was closely akin to the . Before this, most Cape Dutch-Afrikaans speakers had to rely on the Dutch . This had its origins with the Synod of Dordrecht of 1618 and was thus in an archaic form of Dutch. This was hard for Dutch speakers to understand, and increasingly unintelligible for Afrikaans speakers. C. P. Hoogehout, , and Stephanus Jacobus du Toit were the first Afrikaans Bible translators. Important landmarks in the translation of the Scriptures were in 1878 with C. P. Hoogehout's translation of the (Gospel of Mark, lit. Gospel according to Mark); however, this translation was never published. The manuscript is to be found in the South African National Library, Cape Town. The first official translation of the entire Bible into Afrikaans was in 1933 by J. D. du Toit, E. E. van Rooyen, J. D. Kestell, H. C. M. Fourie, and BB Keet. This monumental work established Afrikaans as , that is "a pure and proper language" for religious purposes, especially amongst the deeply Calvinist Afrikaans religious community that previously had been sceptical of a Bible translation that varied from the Dutch version that they were used to. In 1983, a fresh translation marked the 50th anniversary of the 1933 version and provided a much-needed revision. The final editing of this edition was done by E. P. Groenewald, A. H. van Zyl, P. A. Verhoef, J. L. Helberg and W. Kempen. This translation was influenced by Eugene Nida's theory of dynamic equivalence which focused on finding the nearest equivalent in the receptor language to the idea that the Greek, Hebrew or Aramaic wanted to convey. A new translation, Die Bybel: 'n Direkte Vertaling was released in November 2020. It is the first truly ecumenical translation of the Bible in Afrikaans as translators from various churches, including the Roman Catholic and Anglican Churches, were involved. Various commercial translations of the Bible in Afrikaans have also appeared since the 1990s, such as Die Boodskap and the Nuwe Lewende Vertaling. Most of these translations were published by Christelike Uitgewersmaatskappy (CUM). Classification Indo-European languages Germanic West Germanic Low Franconian Dutch Afrikaans Afrikaans descended from Dutch dialects in the 17th century. It belongs to a West Germanic sub-group, the Low Franconian languages. Other West Germanic languages related to Afrikaans are German, English, the Frisian languages, and the unstandardised languages Low German and Yiddish. Geographic distribution Statistics Sociolinguistics Some state that instead of Afrikaners, which refers to an ethnic group, the terms or (lit. Afrikaans speakers) should be used for people of any ethnic origin who speak Afrikaans. Linguistic identity has not yet established which terms shall prevail, and all three are used in common parlance. Afrikaans is also widely spoken in Namibia. Before independence, Afrikaans had equal status with German as an official language. Since independence in 1990, Afrikaans has had constitutional recognition as a national, but not official, language. There is a much smaller number of Afrikaans speakers among Zimbabwe's white minority, as most have left the country since 1980. Afrikaans was also a medium of instruction for schools in Bophuthatswana, an Apartheid-era Bantustan. Eldoret in Kenya was founded by Afrikaners. Many South Africans living and working in Belgium, the Netherlands, the United Kingdom, Republic of Ireland, Australia, New Zealand, Canada, the United States, Israel, the UAE and Kuwait are also Afrikaans speakers. They have access to Afrikaans websites, news sites such as Netwerk24.com and Sake24, and radio broadcasts over the web, such as those from Radio Sonder Grense, Bokradio and Radio Pretoria. There are also many artists that tour to bring Afrikaans to the emigrants. Afrikaans has been influential in the development of South African English. Many Afrikaans loanwords have found their way into South African English, such as ("pickup truck"), ("barbecue"), ("tangerine"), (American "sneakers", British "trainers", Canadian "runners"). A few words in standard English are derived from Afrikaans, such as aardvark (lit. "earth pig"), trek ("pioneering journey", in Afrikaans lit. "pull" but used also for "migrate"), spoor ("animal track"), ("Southern African grassland" in Afrikaans, lit. "field"), commando from Afrikaans meaning small fighting unit, ("tree snake") and ("segregation"; more accurately "apartness" or "the state or condition of being apart"). In 1976, secondary-school pupils in Soweto began a rebellion in response to the government's decision that Afrikaans be used as the language of instruction for half the subjects taught in non-White schools (with English continuing for the other half). Although English is the mother tongue of only 8.2% of the population, it is the language most widely understood, and the second language of a majority of South Africans. Afrikaans is more widely spoken than English in the Northern and Western Cape provinces, several hundred kilometres from Soweto. The Black community's opposition to Afrikaans and preference for continuing English instruction was underlined when the government rescinded the policy one month after the uprising: 96% of Black schools chose English (over Afrikaans or native languages) as the language of instruction. Afrikaans-medium schools were also accused of using language policy to deter black African parents. Some of these parents, in part supported by provincial departments of education, initiated litigation which enabled enrolment with English as language of instruction. By 2006 there were 300 single-medium Afrikaans schools, compared to 2,500 in 1994, after most converted to dual-medium education. Due to Afrikaans being viewed as the "language of the white oppressor" by some, pressure has been increased to remove Afrikaans as a teaching language in South African universities, resulting in bloody student protests in 2015. Under South Africa's Constitution of 1996, Afrikaans remains an official language, and has equal status to English and nine other languages. The new policy means that the use of Afrikaans is now often reduced in favour of English, or to accommodate the other official languages. In 1996, for example, the South African Broadcasting Corporation reduced the amount of television airtime in Afrikaans, while South African Airways dropped its Afrikaans name from its livery. Similarly, South Africa's diplomatic missions overseas now display the name of the country only in English and their host country's language, and not in Afrikaans. Meanwhile, the constitution of the Western Cape, which went into effect in 1998, declares Afrikaans to be an official language of the province alongside English and Xhosa. In spite of these moves, the language has remained strong, and Afrikaans newspapers and magazines continue to have large circulation figures. Indeed, the Afrikaans-language general-interest family magazine has the largest readership of any magazine in the country. In addition, a pay-TV channel in Afrikaans called KykNet was launched in 1999, and an Afrikaans music channel, MK () (lit. 'Music Channel'), in 2005. A large number of Afrikaans books are still published every year, mainly by the publishers Human & Rousseau, , , and . The Afrikaans film trilogy (first released in 2008) caused a reawakening of the Afrikaans film industry (which had been moribund since the mid to late 1990s ) and Belgian-born singer Karen Zoid's debut single "" (released 2001) caused a resurgence in the Afrikaans music industry, as well as giving rise to the Afrikaans Rock genre. Afrikaans has two monuments erected in its honour. The first was erected in , South Africa, in 1893, and the second, nowadays better-known Afrikaans Language Monument (), was built in Paarl, South Africa, in 1975. When the British design magazine Wallpaper described Afrikaans as "one of the world's ugliest languages" in its September 2005 article about the monument, South African billionaire Johann Rupert (chairman of the Richemont Group), responded by withdrawing advertising for brands such as Cartier, Van Cleef & Arpels, Montblanc and Alfred Dunhill from the magazine. The author of the article, Bronwyn Davies, was an English-speaking South African. Mutual intelligibility with Dutch An estimated 90 to 95% of the Afrikaans lexicon is ultimately of Dutch origin, and there are few lexical differences between the two languages. Afrikaans has a considerably more regular morphology, grammar, and spelling. There is a high degree of mutual intelligibility between the two languages, particularly in written form. Afrikaans acquired some lexical and syntactical borrowings from other languages such as Malay, Khoisan languages, Portuguese, and Bantu languages, and Afrikaans has also been significantly influenced by South African English. Dutch speakers are confronted with fewer non-cognates when listening to Afrikaans than the other way round. Mutual intelligibility thus tends to be asymmetrical, as it is easier for Dutch speakers to understand Afrikaans than for Afrikaans speakers to understand Dutch. In general, mutual intelligibility between Dutch and Afrikaans is far better than between Dutch and Frisian or between Danish and Swedish. The South African poet writer Breyten Breytenbach, attempting to visualise the language distance for Anglophones once remarked that the differences between (Standard) Dutch and Afrikaans are comparable to those between the Received Pronunciation and Southern American English. Current status Post-apartheid South Africa has seen a loss of preferential treatment by the government for Afrikaans, in terms of education, social events, media (TV and radio), and general status throughout the country, given that it now shares its place as official language with ten other languages. Nevertheless, Afrikaans remains more prevalent in the media – radio, newspapers and television – than any of the other official languages, except English. More than 300 book titles in Afrikaans are published annually. South African census figures suggest a growing number of speakers in all nine provinces, a total of 6.85 million in 2011 compared to 5.98 million a decade earlier. The South African Institute of Race Relations (SAIRR) projects that a growing majority will be Coloured Afrikaans speakers. Afrikaans speakers experience higher employment rates than other South African language groups, though as of 2012 half a million were unemployed. Despite the challenges of demotion and emigration that it faces in South Africa, the Afrikaans vernacular remains competitive, being popular in DSTV pay channels and several internet sites, while generating high newspaper and music CD sales. A resurgence in Afrikaans popular music since the late 1990s has invigorated the language, especially among a younger generation of South Africans. A recent trend is the increased availability of pre-school educational CDs and DVDs. Such media also prove popular with the extensive Afrikaans-speaking emigrant communities who seek to retain language proficiency in a household context. Afrikaans-language cinema showed signs of new vigour in the early 21st century. The 2007 film , the first full-length Afrikaans movie since Paljas in 1998, is seen as the dawn of a new era in Afrikaans cinema. Several short films have been created and more feature-length movies, such as and (both in 2008) have been produced, besides the 2011 Afrikaans-language film , which was the first Afrikaans film to screen at the Cannes Film Festival. The film was also released in 2011. The Afrikaans film industry started gaining international recognition via the likes of big Afrikaans Hollywood film stars, like Charlize Theron (Monster) and Sharlto Copley (District 9) promoting their mother tongue. SABC3 announced early in 2009 that it would increase Afrikaans programming due to the "growing Afrikaans-language market and [their] need for working capital as Afrikaans advertising is the only advertising that sells in the current South African television market". In April 2009, SABC3 started screening several Afrikaans-language programmes. Further latent support for the language derives from its de-politicised image in the eyes of younger-generation South Africans, who less and less often view it as "the language of the oppressor". Indeed, there is a groundswell movement within Afrikaans to be inclusive, and to promote itself along with the other indigenous official languages. In Namibia, the percentage of Afrikaans speakers declined from 11.4% (2001 Census) to 10.4% (2011 Census). The major concentrations are in Hardap (41.0%), ǁKaras (36.1%), Erongo (20.5%), Khomas (18.5%), Omaheke (10.0%), Otjozondjupa (9.4%), Kunene (4.2%), and Oshikoto (2.3%). Many native speakers of Bantu languages and English also speak Afrikaans as a second language. It is widely taught in South African schools, with about 10.3 million second-language students. Even in KwaZulu-Natal (where there are relatively few Afrikaans home-speakers), the majority of pupils opt for Afrikaans as their first additional language because it is regarded as easier than Zulu. Afrikaans is offered at many universities outside South Africa, including in the Netherlands, Belgium, Germany, Poland, Russia and the United States. Grammar In Afrikaans grammar, there is no distinction between the infinitive and present forms of verbs, with the exception of the verbs 'to be' and 'to have': In addition, verbs do not conjugate differently depending on the subject. For example, Only a handful of Afrikaans verbs have a preterite, namely the auxiliary ("to be"), the modal verbs, and the verb ("to think"). The preterite of ("may") is rare in contemporary Afrikaans. All other verbs use the perfect tense, het + past participle (ge-), for the past. Therefore, there is no distinction in Afrikaans between I drank and I have drunk. (In colloquial German, the past tense is also often replaced with the perfect.) When telling a longer story, Afrikaans speakers usually avoid the perfect and simply use the present tense, or historical present tense instead (as is possible, but less common, in English as well). A particular feature of Afrikaans is its use of the double negative; it is classified in Afrikaans as and is something that is absent from the other West Germanic standard languages. For example, English: He can not speak Afrikaans. / He can't speak Afrikaans. Both French and San origins have been suggested for double negation in Afrikaans. While double negation is still found in Low Franconian dialects in West Flanders and in some "isolated" villages in the centre of the Netherlands (such as Garderen), it takes a different form, which is not found in Afrikaans. The following is an example: * (lit. I want not this do not.) English: I do not want to do this. * Compare with , which changes the meaning to "I want not to do this." Whereas emphasizes a lack of desire to act, emphasizes the act itself. The was the Middle Dutch way to negate but it has been suggested that since became highly non-voiced, or was needed to complement the . With time the disappeared in most Dutch dialects. The double negative construction has been fully grammaticalised in standard Afrikaans and its proper use follows a set of fairly complex rules as the examples below show: A notable exception to this is the use of the negating grammar form that coincides with negating the English present participle. In this case there is only a single negation. English: He is in [the] hospital, though he eats not. Certain words in Afrikaans arise due to grammar. For example, , which literally means "must not", usually becomes ; although one does not have to write or say it like this, virtually all Afrikaans speakers will change the two words to in the same way as do not shifts to don't in English. The Dutch word ("it" in English) does not correspond to in Afrikaans. The Dutch words corresponding to Afrikaans are , , and . Phonology Vowels As phonemes, and occur only in the words 'mirror' and 'bullet', which used to be pronounced with sequences and , respectively. In other cases, and occur as allophones of, respectively, and before . is phonetically long before . is always stressed and occurs only in the word 'wedges'. The closest unrounded counterparts of are central , rather than front . occur only in a few words. occurs as an allophone of before , though this occurs primarily dialectally, most commonly in the former Transvaal and Free State provinces. Diphthongs occur mainly in loanwords. Consonants All obstruents at the ends of words are devoiced, so that e.g. a final is realized as . occur only in loanwords. is also an allophone of in some environments. is most often uvular . Velar occurs only in some speakers. is usually an alveolar trill or tap . In some parts of the former Cape Province, it is realized uvularly, either as a trill or a fricative . Dialects Following early dialectal studies of Afrikaans, it was theorised that three main historical dialects probably existed after the Great Trek in the 1830s. These dialects are the Northern Cape, Western Cape, and Eastern Cape dialects. Northern Cape dialect may have resulted from contact between Dutch settlers and the Khoekhoe people between the Great Karoo and the Kunene, and Eastern Cape dialect between the Dutch and the Xhosa. Remnants of these dialects still remain in present-day Afrikaans, although the standardising effect of Standard Afrikaans has contributed to a great levelling of differences in modern times. There is also a prison cant, known as Sabela, which is based on Afrikaans, yet heavily influenced by Zulu. This language is used as a secret language in prison and is taught to initiates. The term Kaapse Afrikaans () is sometimes erroneously used to refer to the entire Western Cape dialect; it is more commonly used for a particular sociolect spoken in the Cape Peninsula of South Africa. was once spoken by all population groups. However, it became increasingly restricted to the Cape Coloured ethnic group in Cape Town and surrounds. Kaapse Afrikaans is still understood by the large majority of native Afrikaans speakers in South Africa. preserves some features more similar to Dutch than to Afrikaans. The first-person singular pronoun as in Dutch as opposed to Afrikaans . The diminutive endings , pronounced as in Dutch and not as as in Afrikaans. The use of the form (compare Dutch ) as opposed to Afrikaans . has some other features not typically found in Afrikaans. The pronunciation of , normally as in Dutch is often a . This is the strongest feature of . The insertion of after , and when followed by , e.g. as opposed to Standard Afrikaans . is also characterised by much code-switching between South African English and Afrikaans, especially in the inner-city and areas in Cape Town with lower socio-economic status. An example of characteristic : : English (literal): And I say to you, what seek you here by me? I seek you not! No, go now away! English: And I'm telling you, what are you looking for here? I'm not looking for you! No, go away now! The term ("Afrikaans of the Orange River") is sometimes erroneously used to refer to the Northern Cape dialect; it is more commonly used for the regional peculiarities of standard Afrikaans spoken in the Upington/Orange River wine district of South Africa. Some of the characteristics of are the plural form (Ma-, ), variant pronunciation such as in ("Church") and ("money") and the ending , which indicates possession. Patagonian Afrikaans dialect A distinct dialect of Afrikaans is spoken by the 650-strong South African community of Argentina, in the region of Patagonia. Influences on Afrikaans from other languages Malay Due to the early settlement of a Cape Malay community in Cape Town, who are now known as Coloureds, numerous Classical Malay words were brought into Afrikaans. Some of these words entered Dutch via people arriving from what is now known as Indonesia as part of their colonial heritage. Malay words in Afrikaans include: , which means 'very'/'much'/'many' (from ) is a very commonly used Afrikaans word, different from its Dutch equivalent or . , Afrikaans for jacket (from , ultimately from Persian), used where Dutch would use or . The word in Dutch is now considered archaic and only used in written, literary texts. bobotie, a traditional Cape-Malay dish, made from spiced minced meat baked with an egg-based topping. , which means banana. This is different from the common Dutch word . The Indonesian word is also used in Dutch, though usage is more common. , which means saucer (from , also from Persian). Portuguese Some words originally came from Portuguese such as ("umbrella") from the Portuguese , ("pen/cattle enclosure") from the Portuguese and ("corn", from ). Some of these words also exist in Dutch, like "parasol", though usage is less common and meanings can slightly differ. Khoisan languages , meaning cannabis , meaning lizard, diminutive adapted from a Khoekhoe word , meaning insect, from the Khoisan xo-xo , blanket of animal hides , walking stick from Khoekhoe Some of these words also exist in Dutch, though with a more specific meaning: for example means "South-African tribal javelin" and means "South-African tribal blanket of animal hides". Bantu languages Loanwords from Bantu languages in Afrikaans include the names of indigenous birds, such as and , and indigenous plants, such as and . , from the Zulu word meaning "scholar" or "student", but used to mean someone who is a student of/expert on a certain subject, i.e. He is a language . , meaning bride price, from (and referring to) lobolo of the Nguni languages , the grey crowned crane, known in Latin as Balearica regulorum , medium-sized dioecious tree known in Latin as Sclerocarya birrea , species of thatching grass known as Hyparrhenia , deciduous tree also known by its Latin name, Spirostachys africana / , an adaption of the word , meaning "to go home" or "to knock off (from work)". French The revoking of the Edict of Nantes on 22 October 1685 was a milestone in the history of South Africa, for it marked the beginning of the great Huguenot exodus from France. It is estimated that between 250,000 and 300,000 Protestants left France between 1685 and 1700; out of these, according to Louvois, 100,000 had received military training. A measure of the calibre of these immigrants and of their acceptance by host countries (in particular South Africa) is given by H. V. Morton in his book: In Search of South Africa (London, 1948). The Huguenots were responsible for a great linguistic contribution to Afrikaans, particularly in terms of military terminology as many of them fought on the battlefields during the wars of the Great Trek. Most of the words in this list are descendants from Dutch borrowings from French, Old French or Latin, and are not direct influences from French on Afrikaans. Orthography The Afrikaans writing system is based on Dutch, using the 26 letters of the ISO basic Latin alphabet, plus 16 additional vowels with diacritics. The hyphen (e.g. in a compound like see-eend 'sea duck'), apostrophe (e.g. ma's 'mothers'), and a whitespace character (e.g. in multi-word units like Dooie See 'Dead Sea') is part of the orthography of words, while the indefinite article ʼn is a ligature. All the alphabet letters, including those with diacritics, have capital letters as allographs; the ʼn does not have a capital letter allograph. This means that Afrikaans has 88 graphemes with allographs in total. In Afrikaans, many consonants are dropped from the earlier Dutch spelling. For example, ('only') in Dutch becomes in Afrikaans. Also, Afrikaans and some Dutch dialects make no distinction between and , having merged the latter into the former; while the word for "south" is written in Dutch, it is spelled in Afrikaans (as well as dialectal Dutch writings) to represent this merger. Similarly, the Dutch digraph , normally pronounced as , corresponds to Afrikaans , except where it replaces the Dutch suffix which is pronounced as , as in > . Another difference is the indefinite article, in Afrikaans and in Dutch. "A book" is in Afrikaans, whereas it is either or in Dutch. This is usually pronounced as just a weak vowel, , just like English "a". The diminutive suffix in Afrikaans is , or , whereas in Dutch it is or , hence a "bit" is ʼn in Afrikaans and in Dutch. The letters c, q, x, and z occur almost exclusively in borrowings from French, English, Greek and Latin. This is usually because words that had c and ch in the original Dutch are spelled with k and g, respectively, in Afrikaans. Similarly original qu and x are most often spelt kw and ks, respectively. For example, instead of equatoriaal, and instead of excuus. The vowels with diacritics in non-loanword Afrikaans are: á, ä, é, è, ê, ë, í, î, ï, ó, ô, ö, ú, û, ü, ý. Diacritics are ignored when alphabetising, though they are still important, even when typing the diacritic forms may be difficult. For example, ("ate") instead of the 3 e's alongside each other: *, which can never occur in Afrikaans, or , which translates to "say", whereas is a possessive form. The acute's (á, é, í, ó, ú, ý) primary function is to place emphasis on a word (i.e. for emphatic reasons), by adding it to the emphasised syllable of the word. For example, sál ("will" (verb)), néé ('no'), móét ("must"), hý ("he"), gewéét ("knew"). The acute is only placed on the i if it is the only vowel in the emphasised word: wil ('want' (verb)) becomes wíl, but lui ('lazy') becomes lúi. Only a few non-loan words is spelled with acutes, e.g. dié ('this'), ná ('after'), óf ... óf ('either ... or'), nóg ... nóg ('neither ... nor'), etc. Only four non-loan words are spelled with the grave: ('yes?', 'right?', 'eh?'), ('here, take this!' or '[this is] yours!'), hè ('huh?', 'what?', 'eh?'), and appèl ('(formal) appeal' (noun)). Initial apostrophes A few short words in Afrikaans take initial apostrophes. In modern Afrikaans, these words are always written in lower case (except if the entire line is uppercase), and if they occur at the beginning of a sentence, the next word is capitalised. Three examples of such apostrophed words are . The last (the indefinite article) is the only apostrophed word that is common in modern written Afrikaans, since the other examples are shortened versions of other words ( and , respectively) and are rarely found outside of a poetic context. Here are a few examples: The apostrophe and the following letter are regarded as two separate characters, and are never written using a single glyph, although a single character variant of the indefinite article appears in Unicode, . Table of characters For more on the pronunciation of the letters below, see Help:IPA/Afrikaans. Afrikaans phrases Although there are many different dialects and accents, the transcription would be fairly standard. In the Dutch language the word means African, in the general sense. Consequently, Afrikaans is commonly denoted as . This ambiguity also exists in Afrikaans itself and is resolved either in the context of its usage, or by using in the adjective sense (e.g. Afrika-olifant for African elephant). A handful of Afrikaans words are exactly the same as in English. The following Afrikaans sentences, for example, are exactly the same in the two languages, in terms of both their meaning and spelling; only their pronunciation differs. () () Sample text Psalm 23 1983 translation: Die Here is my Herder, ek kom niks kort nie. Hy laat my rus in groen weivelde. Hy bring my by waters waar daar vrede is. Hy gee my nuwe krag. Hy lei my op die regte paaie tot eer van Sy naam. Selfs al gaan ek deur donker dieptes, sal ek nie bang wees nie, want U is by my. In U hande is ek veilig. Psalm 23 1953 translation: Die Here is my Herder, niks sal my ontbreek nie. Hy laat my neerlê in groen weivelde; na waters waar rus is, lei Hy my heen. Hy verkwik my siel; Hy lei my in die spore van geregtigheid, om sy Naam ontwil. Al gaan ek ook in 'n dal van doodskaduwee, ek sal geen onheil vrees nie; want U is met my: u stok en u staf die vertroos my. Lord's Prayer (Afrikaans New Living translation) Ons Vader in die hemel, laat U Naam geheilig word. Laat U koningsheerskappy spoedig kom. Laat U wil hier op aarde uitgevoer word soos in die hemel. Gee ons die porsie brood wat ons vir vandag nodig het. En vergeef ons ons sondeskuld soos ons ook óns skuldenaars vergewe het. Bewaar ons sodat ons nie aan verleiding sal toegee nie; en bevry ons van die greep van die bose. Want van U is die koninkryk, en die krag, en die heerlikheid, tot in ewigheid. Amen Lord's Prayer (Original translation): Onse Vader wat in die hemel is, laat U Naam geheilig word; laat U koninkryk kom; laat U wil geskied op die aarde, net soos in die hemel. Gee ons vandag ons daaglikse brood; en vergeef ons ons skulde soos ons ons skuldenaars vergewe en laat ons nie in die versoeking nie maar verlos ons van die bose Want aan U behoort die koninkryk en die krag en die heerlikheid tot in ewigheid. Amen See also Arts Festival Afrikaans literature Afrikaans speaking population in South Africa Arabic Afrikaans (Afrikaans Dictionary) Differences between Afrikaans and Dutch IPA/Afrikaans (Arts Festival) Languages of South Africa List of Afrikaans language poets List of Afrikaans singers List of English words of Afrikaans origin South African Translators' Institute Notes References Citations Sources Further reading Grieshaber, Nicky. 2011. Diacs and Quirks in a Nutshell – Afrikaans spelling explained. Pietermaritzburg. ; e-. External links afrikaans.com Afrikaans English Online Dictionary at Hablaa (archived 4 June 2012) Afrikaans-English Online Dictionary at majstro.com Learn Afrikaans Online (Open Learning Environment) Federasie van Afrikaanse Kultuurvereniginge (FAK) – Federation of Afrikaans Cultural Associations Dutch Writers from South Africa: A Cultural-Historical Study, Part I from the World Digital Library Afrikaans Literature and Language Web dossier African Studies Centre, Leiden (2011) Analytic languages Articles containing video clips Languages of Botswana Languages of Namibia Languages of South Africa Languages of Eswatini Low Franconian languages Stress-timed languages Subject–object–verb languages Verb-second languages

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https://en.wikipedia.org/wiki/ABC

ABC

ABC are the first three letters of the Latin script. ABC or abc may also refer to: Arts, entertainment and media Broadcasting American Broadcasting Company, a commercial U.S. TV broadcaster Disney–ABC Television Group, the former name of the parent organization of ABC Australian Broadcasting Corporation, one of the national publicly funded broadcasters of Australia ABC Television (Australian TV network), the national television network of the Australian Broadcasting Corporation ABC TV (Australian TV channel), the flagship TV station of the Australian Broadcasting Corporation ABC Canberra (TV station), Canberra, and other ABC TV local stations in state capitals ABC Australia (Southeast Asian TV channel), an international pay TV channel ABC Radio (disambiguation), several radio stations Associated Broadcasting Corporation, a former name of the Philippine television company TV5 Network, Inc. ABC-5, the former name of TV5 (Philippines), a Philippine free-to-air network ABC (Swedish TV programme), a former Swedish regional news programme ABC Weekend TV, a former British television company Asahi Broadcasting Corporation, a Japanese commercial television and radio station Associated Broadcasting Company, a former name of Associated Television, a British television company Music Albums ABC (Jin album), a 2007 album by rapper MC Jin ABC (Kreidler album), a 2014 album by Kreidler ABC (The Jackson 5 album), a 1970 album by The Jackson 5 Groups A.B.C., the former name of Japanese boy band A.B.C-Z ABC (band), an English pop band Acid Black Cherry, a Japanese rock band Alien Beat Club, a Danish pop and R&B band Another Bad Creation, an American hip hop and new jack swing group Labels ABC Classics, an Australian record label ABC Records, an American record label Other music ABC song (disambiguation), several songs ABC notation, a musical notation language O2 ABC Glasgow, a music venue Periodicals ABC (magazine), an Italian magazine published between 1960 and 1977 ABC (newspaper), a Spanish daily newspaper founded in 1903 ABC (Monterrey newspaper), a Mexican newspaper founded in 1985 ABC Color, a Paraguayan newspaper founded in 1967 Other arts, entertainment and media ABC Cinemas, a UK cinema chain Alphabet book, a type of children's book depicting the alphabet America's Best Comics, an imprint of DC Comics Companies Financial Agricultural Bank of China, a bank in the People's Republic of China Arab Banking Corporation, an international bank headquartered in Bahrain Food and beverage ABC (food), an Indonesian-based food division of the H. J. Heinz Company Aerated Bread Company, a British bakery and tea-room chain Appalachian Brewing Company, an American brewery Transport ABC Motors, an English manufacturer of aircraft, aero engines and cars ABC Rail Guide, British railway guide published between 1853 and 2007 ABC motorcycles, a British motorcycle manufacturer Other companies ABC Learning, a former Australian childcare business ABC Stores, a chain of convenience stores in Hawaii Aircraft Builders Council, a provider of aviation products liability insurance Anglo Belgian Corporation, a diesel engine manufacturer Audit Bureau of Circulations (disambiguation), publication circulation auditing companies Audit Bureau of Circulations (India), a non-profit circulation-auditing organisation Audit Bureau of Circulations, former name for the North American non-profit industry organization Alliance for Audited Media Audit Bureau of Circulations (UK), a non-profit organisation Economics and law ABC analysis, an inventory categorization technique Activity-based costing, an accounting method Assignment for the benefit of creditors, a concept in bankruptcy law Organizations Politics and unions ABC (Cuba), Cuban political organization 1931–1952, named after the system for labeling its clandestine cells All Basotho Convention, a political party in Lesotho Alliance for Barangay Concerns, a political party in the Philippines American Bakery and Confectionery Workers' International Union, a predecessor of the Bakery, Confectionery, Tobacco Workers and Grain Millers' International Union Americans Battling Communism, an anti-communist organization founded in 1947 Anarchist Black Cross, an anarchist support organization Anything But Conservative, a 2008 Canadian political campaign Association of Barangay Captains or Association of Barangay Councils, former names of the Philippine organization League of Barangays Association of British Counties, a non-party-political society Religious American Baptist Convention, former name of American Baptist Churches USA Association of Baptist Churches in Ireland, in Ireland and the United Kingdom Sports ABC Futebol Clube, a football (soccer) club based in Natal, Rio Grande do Norte, Brazil American Bowling Congress, which merged in 2005 with other bowling organizations to form the United States Bowling Congress Association of Boxing Commissions, a North American not-for-profit professional boxing and mixed martial arts organization Indianapolis ABCs, a 1900s Negro league baseball team Other organizations Academia Británica Cuscatleca, a school in Santa Tecla, El Salvador Accessible Books Consortium, a subunit of the World Intellectual Property Organization Afrikan Black Coalition, a University of California student organization American Bird Conservancy, a non-profit membership organization Association of Black Cardiologists, a North American non-profit Australian Bird Count, a project of the Royal Australasian Ornithologists Union Virginia Alcoholic Beverage Control Authority, a public safety agency Places ABC countries, Argentina, Brazil, and Chile ABC Islands (Alaska), Admiralty Island, Baranof Island, and Chichagof Island ABC islands (Leeward Antilles), Aruba, Bonaire, and Curaçao ABC Region, an industrial area outside of São Paulo, Brazil Albacete Airport, a joint civilian/military airport serving Albacete, Spain (IATA: ABC) Altnabreac railway station, Scotland, by National Rail code Appa Balwant Chowk, area of Pune, India, noted for its bookshops Science and technology Biology and medicine Abacavir, an antiretroviral drug used to treat HIV/AIDS ABC (medicine), a mnemonic for "Airway, Breathing, Circulation" ABC model of flower development, a genetic model Abortion–breast cancer hypothesis, a posited connection between breast cancer and abortion Alien big cat, a large feline outside its indigenous range Aneurysmal bone cyst, a kind of lesion ATP-binding cassette transporter, a transmembrane protein Computing Hardware ABC, a line of computers by Dataindustrier AB Acorn Business Computer, a series of microcomputers announced at the end of 1983 by the British company Acorn Computers Atanasoff–Berry computer, an early electronic digital computer Software ABC (computer virus), a memory-resident, file-infecting computer virus ABC (programming language), a programming language and environment ABC (stream cipher), a stream cipher algorithm Abstract base class, a programming language concept Artificial bee colony algorithm, a search algorithm .abc, several file formats Mathematics ABC formula Approximate Bayesian computation, a family of statistical techniques abc conjecture, a concept in number theory Other science and technology ABC dry chemical, a fire extinguishing agent ABC weapon, a weapon of mass destruction Accelerated bridge construction, a technique for building bridges Aerial bundled cable, for power lines Airborne Cigar, a British military electronic countermeasure system used during World War II Atomic, biological, and chemical defense, now rendered as chemical, biological, radiological and nuclear defense Psychology ABC data collection, a descriptive functional behavior assessment method in applied behavior analysis Affective-behavioral-cognitive model, an attitude component model Transportation Active Body Control, a type of automobile suspension technology Advance Booking Charter, a type of air travel Automatic Buffer Couplers, a type of railway couplers Cars ABC (1906 automobile), an American car by Albert Bledsoe Cole ABC (1920 automobile), an English car by ABC Motors ABC (1922 automobile), a planned American car Other uses ABC strategy, for "abstinence, be faithful, use a condom", a sex-education strategy ABC trial of Crispin Aubrey, John Berry and Duncan Campbell in 1978 in the United Kingdom Abecedarium, an inscription consisting of the letters of an alphabet Air batu campur, also known as ais kacang, a Malaysian dessert American-born Chinese, people of Chinese ethnicity born in the United States Andrew Cunningham, 1st Viscount Cunningham of Hyndhope (1883–1963), nicknamed ABC, British WWII admiral Architectural, building and construction, an industry; for example, see Industry Foundation Classes Australian-born Chinese, people of Chinese ethnicity born in Australia See also Alcoholic Beverage Control (disambiguation)

2167

https://en.wikipedia.org/wiki/Alford%20plea

Alford plea

In United States law, an Alford plea, also called a Kennedy plea in West Virginia, an Alford guilty plea, and the Alford doctrine, is a guilty plea in criminal court, whereby a defendant in a criminal case does not admit to the criminal act and asserts innocence, even if the evidence presented by the prosecution would be likely to persuade a judge or jury to find the defendant guilty beyond a reasonable doubt. This can be caused by circumstantial evidence and testimony favoring the prosecution and difficulty finding evidence and witnesses that would aid the defense. Alford pleas are legally permissible in nearly all U.S. federal and state courts, except in the state courts of Indiana, Michigan, and New Jersey, or in the courts of the United States Armed Forces. Origin The Alford guilty plea is named after the United States Supreme Court case of North Carolina v. Alford (1970). Henry Alford had been indicted on a charge of first-degree murder in 1963. Evidence in the case included testimony from witnesses that Alford himself had said, after the victim's death, that he had killed the individual. Court testimony showed that Alford and the victim had argued at the victim's house. Alford left the house, and afterwards the victim received a fatal gunshot wound when he opened the door responding to a knock. Alford was faced with the possibility of capital punishment if convicted by a jury trial. The death penalty was the default sentence by North Carolina law at the time, if two requisites in the case were satisfied: the defendant had to have pleaded not guilty, and the jury did not instead recommend a life sentence. Had he pleaded guilty to first-degree murder, Alford would have had the possibility of a life sentence and would have avoided the death penalty, but he did not want to admit guilt. Nonetheless, Alford pleaded guilty to second-degree murder and said he was doing so to avoid a death sentence, were he to be convicted of first-degree murder, after attempting to contest that charge. Alford was sentenced to 30 years in prison after the trial judge accepted the plea bargain and ruled that the defendant had been adequately advised by his defense lawyer. Alford appealed and requested a new trial, arguing he was forced into a guilty plea because he was afraid of receiving a death sentence. The Supreme Court of North Carolina ruled that the defendant had voluntarily entered the guilty plea with knowledge of what that meant. Following this ruling, Alford petitioned for a writ of habeas corpus in the United States District Court for the Middle District of North Carolina, which upheld the initial ruling, and subsequently to the United States Court of Appeals for the Fourth Circuit, which ruled that Alford's plea was not voluntary, because it was made under fear of the death penalty. "I just pleaded guilty because they said if I didn't, they would gas me for it," wrote Alford in one of his appeals. The case was then appealed to the U.S. Supreme Court. Supreme Court Justice Byron White wrote the majority decision, which held that for the plea to be accepted, the defendant must have been advised by a competent lawyer who was able to inform the individual that his best decision in the case would be to enter a guilty plea. The Court ruled that the defendant can enter such a plea "when he concludes that his interests require a guilty plea and the record strongly indicates guilt." The Court allowed the guilty plea with a simultaneous protestation of innocence only because there was enough evidence to show that the prosecution had a strong case for a conviction and the defendant was entering such a plea to avoid this possible sentencing. The Court went on to note that even if the defendant could have shown that he would not have entered a guilty plea "but for" the rationale of receiving a lesser sentence, the plea itself would not have been ruled invalid. As evidence existed that could have supported Alford's conviction, the Supreme Court held that his guilty plea was allowable while the defendant himself still maintained that he was not guilty. Alford died in prison in 1975. Definition The Dictionary of Politics: Selected American and Foreign Political and Legal Terms defines the term "Alford plea" as: "A plea under which a defendant may choose to plead guilty, not because of an admission to the crime, but because the prosecutor has sufficient evidence to place a charge and to obtain conviction in court. The plea is commonly used in local and state courts in the United States." According to University of Richmond Law Review, "When offering an Alford plea, a defendant asserts his innocence but admits that sufficient evidence exists to convict him of the offense." A Guide to Military Criminal Law notes that under the Alford plea, "the defendant concedes that the prosecution has enough evidence to convict, but the defendant still refuses to admit guilt." The book Plea Bargaining's Triumph: A History of Plea Bargaining in America published by Stanford University Press defines the plea as one in "which the defendant adheres to his/her claim of innocence even while allowing that the government has enough evidence to prove his/her guilt beyond a reasonable doubt". According to the book Gender, Crime, and Punishment published by Yale University Press, "Under the Alford doctrine, a defendant does not admit guilt but admits that the state has sufficient evidence to find him or her guilty, should the case go to trial." Webster's New World Law Dictionary defines Alford plea as: "A guilty plea entered as part of a plea bargain by a criminal defendant who denies committing the crime or who does not actually admit his guilt. In federal courts, such plea may be accepted as long as there is evidence that the defendant is actually guilty." The Alford guilty plea is "a plea of guilty containing a protestation of innocence". The defendant pleads guilty, but does not have to specifically admit to the guilt itself. The defendant maintains a claim of innocence, but agrees to the entry of a conviction in the charged crime. Upon receiving an Alford guilty plea from a defendant, the court may immediately pronounce the defendant guilty and impose sentence as if the defendant had otherwise been convicted of the crime. Sources disagree, as may differing states' laws, as to what category of plea the Alford plea falls under: Some sources state that the Alford guilty plea is a form of nolo contendere, where the defendant in the case states "no contest" to the factual matter of the case as given in the charges outlined by the prosecution. Others hold that an Alford plea is simply one form of a guilty plea, and, as with other guilty pleas, the judge must see there is some factual basis for the plea. Defendants can take advantage of the ability to use the Alford guilty plea, by admitting there is enough evidence to convict them of a higher crime, while at the same time pleading guilty to a lesser charge. Defendants usually enter an Alford guilty plea if they want to avoid a possible worse sentence were they to lose the case against them at trial. It affords defendants the ability to accept a plea bargain, while maintaining innocence. Court and government use This form of guilty plea has been frequently used in local and state courts in the United States, though it constitutes a small percentage of all plea bargains in the U.S. This form of plea is not allowed in courts of the United States military. In 2000, the United States Department of Justice noted, "In an Alford plea the defendant agrees to plead guilty because he or she realizes that there is little chance to win acquittal because of the strong evidence of guilt. About 17% of State inmates and 5% of Federal inmates submitted either an Alford plea or a no contest plea, regardless of the type of attorney. This difference reflects the relative readiness of State courts, compared to Federal courts, to accept an alternative plea." In the 1995 case State of Idaho v. Howry before the Idaho Court of Appeals, the Court commented on the impact of the Alford guilty plea on later sentencing. The Court ruled, "Although an Alford plea allows a defendant to plead guilty amid assertions of innocence, it does not require a court to accept those assertions. The sentencing court may, of necessity, consider a broad range of information, including the evidence of the crime, the defendant's criminal history and the demeanor of the defendant, including the presence or absence of remorse." In the 1999 South Carolina Supreme Court case State v. Gaines, the Court held that Alford guilty pleas were to be held valid even in the absence of a specific on-the-record ruling that the pleas were voluntary – provided that the sentencing judge acted appropriately in accordance with the rules for acceptance of a plea made voluntarily by the defendant. The Court held that a ruling that the plea was entered into voluntarily is implied by the act of sentencing. In the 2006 case before the United States Court of Appeals for the Fifth Circuit, Ballard v. Burton, Judge Carl E. Stewart writing for the Court held that an Alford guilty plea is a "variation of an ordinary guilty plea". In October 2008, the United States Department of Justice defined an Alford plea as: "the defendant maintains his or her innocence with respect to the charge to which he or she offers to plead guilty". In March 2009, the Minnesota House of Representatives characterized the Alford plea as: "a form of a guilty plea in which the defendant asserts innocence but acknowledges on the record that the prosecutor could present enough evidence to prove guilt." The Minnesota Judicial Branch similarly states: "Alford Plea: A plea of guilty that may be accepted by a court even where the defendant does not admit guilt. In an Alford plea, defendant has to admit that he has reviewed the state's evidence, a reasonable jury could find him guilty, and he wants to take advantage of a plea offer that has been made. Court has discretion as to whether to accept this type of plea." The U.S. Attorneys' Manual states that in the federal system, Alford pleas "should be avoided except in the most unusual circumstances, even if no plea agreement is involved and the plea would cover all pending charges." U.S. Attorneys are required to obtain the approval of an Assistant Attorney General with supervisory responsibility over the subject matter before accepting such a plea. Use in post-conviction proceedings The Alford plea has received public attention for its use in resolving high-profile post-conviction proceedings for individuals who claim they were wrongfully convicted for crimes they did not commit. In 2011, the West Memphis Three—three men who had been convicted as teenagers of the 1993 murders of three children and sentenced to life in prison or, for one defendant, the death penalty—entered Alford pleas decades following their initial convictions. New evidence had come to light that might exonerate them, so the Arkansas Supreme Court ordered an evidentiary hearing to consider whether a new trial would be required. Instead of holding the hearing, the defendants and state prosecutors agreed that the court would vacate the prior convictions to permit the defendants to enter Alford pleas, be re-sentenced to "time served," and obtain immediate release from prison. As part of the plea deal, the men agreed not to sue the state seeking civil damages for their convictions and imprisonment. Similarly, novelist Michael Peterson, who had been convicted in 2003 of murdering his wife, entered an Alford plea in 2017 to resolve the case against him. Peterson's case had been the subject of the 2004 documentary series The Staircase and other media scrutiny, and Peterson continued to challenge his conviction based on alleged law enforcement misconduct and judicial errors. He was eventually granted a new trial, but then agreed to enter an Alford plea to the lesser offense of voluntary manslaughter instead. The judge then imposed a sentence that, after being reduced to account for time already served, resulted in Peterson serving no additional time in prison. A 2022 scripted drama miniseries, also called The Staircase, portrayed the events of the case, including the legal battle and Alford plea. Commentary In his book American Criminal Justice (1972), Jonathan D. Casper comments on the Supreme Court decision, noting, "The Alford decision recognizes the plea-bargaining system, acknowledging that a man may maintain his innocence but still plead guilty in order to minimize his potential loss." Casper comments on the impact of the Supreme Court's decision to require evidence of guilt in such a plea: "By requiring that there be some evidence of guilt in such a situation, the decision attempts to protect the 'really' innocent from the temptations to which plea-bargaining and defense attorneys may subject them." US Air Force attorney Steven E. Walburn argues in a 1998 article in The Air Force Law Review that this form of guilty plea should be adopted for usage by the United States military. "In fairness to an accused, if, after consultation with his defense counsel, he knowingly and intelligently determines that his best interest is served by an Alford-type guilty plea, he should be free to choose this path. The system should not force him to lie under oath, nor to go to trial with no promise of the ultimate outcome concerning guilt or punishment. We must trust the accused to make such an important decision for himself. The military provides an accused facing court-martial with a qualified defense attorney. Together, they are in the best position to properly weigh what the impact his decision, and the resulting conviction, will have upon himself and his family," writes Walburn. He emphasizes that when allowing these pleas, "trial counsel should establish as strong a factual basis as possible", in order to minimize the possible negative outcomes to "the public's perception of the administration of justice within the military". Stephanos Bibas writes in a 2003 analysis for Cornell Law Review that Judge Frank H. Easterbrook and a majority of scholars "praise these pleas as efficient, constitutional means of resolving cases". Bibas notes that prominent plea bargain critic Albert Alschuler supports the use of this form of plea, writing, "He views them as a lesser evil, a way to empower defendants within a flawed system. As long as we have plea bargaining, he maintains, innocent defendants should be free to use these pleas to enter advantageous plea bargains without lying. And guilty defendants who are in denial should be empowered to use these pleas instead of being forced to stand trial." Bibas instead asserts that this form of plea is "unwise and should be abolished". Bibas argues, "These procedures may be constitutional and efficient, but they undermine key values served by admissions of guilt in open court. They undermine the procedural values of accuracy and public confidence in accuracy and fairness, by convicting innocent defendants and creating the perception that innocent defendants are being pressured into pleading guilty. More basically, they allow guilty defendants to avoid accepting responsibility for their wrongs." Legal scholar Jim Drennan, an expert on the court system at the Institute of Government at the University of North Carolina at Chapel Hill, told the Winston-Salem Journal in a 2007 interview that the ability to use this form of guilty plea as an option in courts had a far-reaching effect throughout the United States. Drennan commented, "We have lots of laws, but human interaction creates unique circumstances and the law has to adapt." He said of the Supreme Court case, "They had to make a decision about what to do. One of the things the court has to do is figure out how to answer new questions, and that is what happened in this case." Common criticisms of Alford pleas include: harm to victims who are denied justice, harm to society from lack of respect for the criminal justice system, the incentive for coercion, violating the right against self-incrimination, hindering rehabilitation by avoiding treatment, and the arbitrary nature in which they are utilized, allowing a person to say one thing when they mean another. See also Alternative pleading Deferred adjudication Insanity defense List of people who entered an Alford plea List of U.S. states by Alford plea usage Malum in se Malum prohibitum Nolo contendere Peremptory plea Michael Peterson West Memphis Three References Further reading External links Alford Doctrine – State of Connecticut, Judicial Branch USAM 9-16.000 Pleas—Federal Rule of Criminal Procedure 11, United States Department of Justice Issue: Effect of Alford Plea of Guilty, Issues In NY Criminal Law, Volume 4, Issue 11. Transcript Of Plea Form, North Carolina, with question about term Court cases North Carolina v. Alford, Supreme Court of the United States US v. Szucko, Definition of term by United States Court of Appeals for the Fifth Circuit US v. Bierd, Definition of term by United States Court of Appeals for the First Circuit Pleas

2175

https://en.wikipedia.org/wiki/American%20cuisine

American cuisine

American cuisine consists of the cooking style and traditional dishes prepared in the United States of America. It has been significantly influenced by Europeans, indigenous Native Americans, Africans, Latin Americans, Asians, Pacific Islanders, and many other cultures and traditions. Principal influences on American cuisine are European, Native American, soul food, regional heritages including Cajun, Louisiana Creole, Pennsylvania Dutch, Mormon foodways, Texan, Tex-Mex, New Mexican, and Tlingit, and the cuisines of immigrant groups such as Chinese American, Italian American, Greek American and Mexican American. The large size of America and its long history of immigration have created an especially diverse cuisine that varies by region. American cooking dates back to the traditions of the Native Americans, whose diet included a mix of farmed and hunted food, and varied widely across the continent. The Colonial period created a mix of Native and Old World cookery, and brought with it new crops and livestock. During the early 19th century, cooking was based mostly on what the agrarian population could grow, hunt, or raise on their land. With an increasing influx of immigrants, and a move to city life, American food further diversified in the later part of the 19th century. The 20th century saw a revolution in cooking as new technologies, the World Wars, a scientific understanding of food, and continued immigration combined to create a wide range of new foods. This has allowed for the current rich diversity in food dishes throughout the country. This was driven in part by the many chefs and television personalities who contributed to the rise of the culinary arts in America. Highlights of American cuisine include milkshakes, barbecue, and a wide range of fried foods. Many quintessential American dishes are unique takes on food originally from other culinary traditions, including pizza, hot dogs, and Tex-Mex. Regional highlights include a range of fish dishes in the coastal states, gumbo, and cheesesteak. American cuisine has specific foods that are eaten on holidays, such as a turkey at thanksgiving dinner or Christmas dinner. Modern American cuisine includes a focus on fast food, as well as take-out food, which is often ethnic. There is also a vibrant culinary scene in the country surrounding televised celebrity chefs. History Native Americans origins: American cuisine before 1600 Early Native Americans utilized a number of cooking methods in early American cuisine that have been blended with the methods of early Europeans to form the basis of what is now American cuisine. Nearly all regions and subregions of the present-day cuisine have roots in the foodways of Native Americans, who lived in tribes numbering in the thousands. Prior to 1600, native peoples lived off the land in very diverse bioregions and had done so for thousands of years, often living a nomadic life where their diet changed with the season. Many practiced a form of agriculture revolving around the Three Sisters, the rotation of beans, maize, and squash as staples of their diet. In the East, this was documented as early as the 1620s in Of Plimoth Plantation, evidenced by the pages William Bradford wrote regarding Squanto, who showed them the traditional regional method of burying a fish or eel in a mound with seeds for maize to improve the soil; this itself is also part of the widely practiced phenomenon of companion planting. Wild game was equally a staple of nearly every tribe: generally, deer, elk, and bison were staples, as were rabbits and hare. The Cherokee of the Southern Appalachians used blowguns made of an indigenous type of bamboo to hunt squirrels. Northern tribes like the Ojibwe of what is now the state of Michigan and the peoples of the Wabanaki of what is now the state of Maine would stalk and hunt moose, whereas their Southern counterparts, like the Choctaw or Catawba, hunted snapping turtles and other testudines, possums, and young alligators in the subtropical swamps of Louisiana and South Carolina. Many tribes would preserve their meat in the form of pemmican, needed on long journeys or to survive harsh winters. Fish and crustaceans As with the hunted game, the biome in which one lived often dictated what was available to catch. For example, the Apache and Navajo peoples of the Southwest, whose territories each would have included swathes of New Mexico and Arizona, generally do not eat fish because in both cultures it is taboo, as well as often inconvenient. The Navajo believe that fish have a part in the story of creation, the Apache were in general afraid of water since they associated it with thunder, and the arid desert climate made fish a rarity. However, in the culture of the Lenape, the tribe that originally lived in New Jersey, on the Delaware River, and the area that now comprises New York City, fish and shellfish were a staple in their diet and it was such a revered part of the culture that there is a documented and still-practiced harvest dance called the Fish Dance. Originally it would have been done to celebrate bringing in fish from places like the Delaware or Raritan River or the estuary around Manhattan Island and the completion of smoking them as a source of food for the winter ahead. Eastern tribes would have eaten cod, particularly groups that spoke the Algonquian languages of New England as far south as present day Connecticut, winter flounder and other flatfish, species of herring like the alewife, shad, Atlantic herring, and Atlantic menhaden, They also would have consumed the Atlantic sturgeon and drum. In the West, Pacific several species of sturgeon, like the white sturgeon and green sturgeon, olachen and several autochthonal fish of the Oncorhynchus family including the rainbow trout, cutthroat trout, coho salmon, kokanee salmon, and chinook salmon. The last makes an appearance in the accounts of Lewis and Clark as being fished for in the Columbia River Basin, and this species is named for a family of tribes of the Pacific Northwest, indicating its important role in that food culture. Pacific gray whales and humpbacks were hunted by American Indians off the Northwest coast, especially by the Makah, and used for their meat and oil. Catfish was also popular among native people throughout the land, over many types of terrain. Crustaceans included shrimp, lobster, crayfish, and dungeness crabs in the Northwest and shrimp, lobster and blue crabs in the East. Other shellfish include abalone and geoduck on the West Coast, while on the East Coast the surf clam, quahog, and the soft-shell clam. Oysters were eaten on both shores, as were mussels and periwinkles. Cooking methods Early American natives used a number of cooking methods that have been blended with early European cooking methods to form the basis of American cuisine. Grilling meats was common. Spit roasting over a pit fire was common as well. Vegetables, especially root vegetables, were often cooked directly in the ashes of the fire. As early Native Americans lacked pottery that could be used directly over a fire, they developed a technique many anthropologists call "stone boiling". They heated rocks in a fire, then added the rocks to a pot filled with water until it came to a boil to cook the meat or vegetables. In what is now the Southwestern United States, they also created adobe ovens, dubbed hornos by the Spanish, to bake products such as cornmeal bread. Other parts of America dug pit ovens, which were also used to steam foods by adding heated rocks or embers. One technique performed extensively by New England tribes was adding seaweed or corn husks on top of the layers of stones to steam fish and shellfish as well as vegetables. A later addition was potatoes, a garden plant that came to New England by the 18th century, added while still in skin with corn in husk, later to be referred to as a clambake by colonists. Colonial period The European settlement of the Americas introduced a number of ingredients, spices, herbs, and cooking styles to the continent. When European colonists came to Virginia, Pennsylvania, Massachusetts, and any of the other English colonies on the eastern seaboard of North America, their initial attempts at survival included planting crops familiar to them from back home in England. In the same way, they farmed animals for clothing and meat. Through hardships and the eventual establishment of trade with England, the West Indies and other regions, the colonists were able to derive a cuisine similar to what they had previously consumed in Britain and Ireland, while also introducing local animals and plants to their diet. American colonists followed along the line of British cookery up until the Revolution, when a desire to distinguish themselves from Britain led Americans to create "American" styles of cookery. In 1796, the first American cookbook was published, and others followed. There was a general disdain for French cuisine/French cookery, even with French Huguenot settlers in South Carolina and French-Canadian emigrants in America. One of the cookbooks that proliferated in the colonies was The Art of Cookery Made Plain and Easy (1747) by Hannah Glasse, who referred to "the blind folly of this age that would rather be imposed on by a French booby, than give encouragement to a good English cook!" Of the French recipes given in the text, she speaks out flagrantly against the dishes as she "... think[s] it an odd jumble of trash." With the introduction of slavery, Africans were brought into the colonies. With them, came foods and ingredients such as bananas, peanuts, sweet potato, yams, and coffee, and cooking styles reminiscent of West African cuisines are still found in many dishes, especially in Southern cuisine. The expulsion of the Acadians from Acadia led many of them to Louisiana, where they left a French influence in the diet of those settled in Louisiana, and among the Acadian Francophones who settled eastern Maine and parts of what is now northern Vermont at the same time they colonized New Brunswick. Some of the Jews who fled from the Inquisition with other Sephardic Jews in the 15th century had previously settled in Recife, Brazil and the West Indies, where their cuisine was influenced by new local ingredients like molasses, rum, sugar, vanilla, chocolate, peppers, corn, tomatoes, kidney beans, string beans and turkey. In 1654, twenty three Sephardic Jews arrived in New Amsterdam bringing this cuisine with them to the early colonial United States. Early American Jewish cuisine was heavily influenced by this branch of Sephardic cuisine. Many of the recipes were bound up in observance of traditional holidays and remained true to their origins. These included dishes such as stew and fish fried in olive oil, beef and bean stews, almond puddings, and egg custards. The first kosher cookbook in America was the Jewish Cookery Book by Esther Levy, published in 1871 in Philadelphia and includes many of the traditional recipes. Common ingredients The American colonial diet varied depending on the settled region in which someone lived. Local cuisine patterns had been established by the mid-18th century. The New England colonies were extremely similar in their dietary habits to those that many of them had brought from England. As many of the New Englanders were originally from England, game hunting was useful when they immigrated to the New World. Many of the northern colonists depended upon their ability to hunt, or upon others from whom they could purchase game. Hunting was the preferred method of protein acquisition, as opposed to animal husbandry, which required much more work to defend the kept animals against raids A striking difference for the colonists in New England compared to other regions was seasonality. While in the southern colonies, they could farm almost year-round, in the northern colonies, the growing seasons were very restricted. In addition, northern colonists' close proximity to the ocean gave them a bounty of fresh fish to add to their diet. Wheat, the grain used to bake bread back in England, was almost impossible to grow, and imports of wheat were far from cost productive. Substitutes in cases such as this included cornmeal. The Johnnycake was a poor substitute to some for wheaten bread, but acceptance by both the northern and southern colonies seems evident. Livestock and game Commonly hunted game included deer, bear, buffalo, and wild turkey. The larger muscles of the animals were roasted and served with currant sauce, while the other smaller portions went into soups, stews, sausages, pies, and pastries. In addition to the game, colonists' protein intake was supplemented by mutton. The Spanish in Florida originally introduced sheep to the New World, but this development never quite reached the North, and there they were introduced by the Dutch and English. The keeping of sheep was a result of the English non-practice of animal husbandry. The animals provided wool when young and mutton upon maturity after wool production was no longer desirable. The forage-based diet for sheep that prevailed in the Colonies produced a characteristically strong, gamy flavor and a tougher consistency, which required aging and slow cooking to tenderize. Fats and oils Fats and oils made from animals served to cook many colonial foods. Many homes had a sack made of deerskin filled with bear oil for cooking, while solidified bear fat resembled shortening. Rendered pork fat made the most popular cooking medium, especially from the cooking of bacon. Pork fat was used more often in the southern colonies than the northern colonies as the Spanish introduced pigs earlier to the South. The colonists enjoyed butter in cooking as well, but it was rare prior to the American Revolution, as cattle were not yet plentiful. Alcoholic drinks Prior to the Revolution, New Englanders consumed large quantities of rum and beer, as maritime trade provided them relatively easy access to the goods needed to produce these items. Rum was the distilled spirit of choice, as the main ingredient, molasses, was readily available from trade with the West Indies. Further into the interior, however, one would often find colonists consuming whiskey, as they did not have similar access to sugar cane. They did have ready access to corn and rye, which they used to produce their whiskey. Until the Revolution, many considered whiskey to be a coarse alcohol unfit for human consumption, as many believed that it caused the poor to become raucous and unkempt drunkards. In addition to these alcohol-based products produced in America, imports were seen on merchant shelves, including wine and brandy. Southern variations In comparison to the northern colonies, the southern colonies were quite diverse in their agricultural diet. The uplands of Piedmont and the coastal lowlands made up the two main parts of the southern colonies. The diet of the uplands often included wild game, cabbage, string beans, corn, squashes and white potatoes. People had biscuits as part of their breakfast, along with healthy portions of pork. The lowlands of Louisiana included a varied diet heavily influenced by the French, Spanish, Acadians, Germans, Native Americans, Africans and Caribbeans. Rice played a large part of the diet in Louisiana. In addition, unlike the uplands, the lowlands subsistence of protein came mostly from coastal seafood. Much of the diet involved the use of peppers, as it still does to this day. Post-colonial cuisine During the 18th and 19th centuries, Americans developed many new foods. Some, such as Rocky Mountain oysters, stayed regional; some spread throughout the nation but with little international appeal, such as peanut butter (a core ingredient of the peanut butter and jelly sandwich); and some spread throughout the world, such as popcorn, cola, fried chicken, cornbread, unleavened muffins such as the poppyseed muffin, and brownies. 19th-century American farmhouse During the 1800s, American farms were mostly self-sufficient, but certain staples like salt, coffee, sugar, and baking soda would be purchased at the town general store. If the family did not grow wheat, then flour would also be purchased. Another luxury was canned salmon, which was sometimes eaten for Sunday dinner. Items purchased at the general store would be paid for with eggs, butter or some other food from the farm. Women were responsible for much of the processing of food like straining fresh milk, churning butter, making molasses from sorghum, grinding corn into cornmeal or cleaning whole chickens. Fresh picked apples were pressed into cider, which could be fermented to make apple cider vinegar. Fruits and vegetables were preserved by various means like canning, drying or pickling. One contemporary writer from Michigan described October as cider season, when apple butter would be made. Her writings mention johnnycakes, and, as winter fare, buckwheat cakes. Typical farmhouse fare included fried chicken, simmered green beans, boiled corn, chicken and dumplings, fried ham, boiled beans and beets, stewed tomatoes, potatoes, and coleslaw made of shredded cabbage. Pon haus, similar to the scrapple of the Pennsylvania Dutch, was a typical breakfast dish among the Germans who had settled Indiana in the 19th century. Pork scraps and corn meal were cooked into a thick porridge and molded in loaf pans. Once solidified, the mixture would be cut and fried. During the fall months, pork might be replaced with fried apples or potatoes. It was served with buttered biscuits, jam, jelly, milk gravy or sorghum syrup. Fruit butter might be made from apples, plums or peaches to accompany the meal. 20th century The 20th century revolutionized American cooking, with the advent of many new technologies, and a continued influx of immigrants with unique food traditions. Pre-World War I At the universities, nutritionists and home economists taught a new scientific approach to food. In the early 1900s muckraking journalists raised public concern about the wholesomeness of industrialized food products that contained various preservatives and adulterants of unknown safety. From 1902 to 1912 Harvey Washington Wiley, a chemist at the U.S. Department of Agriculture, supervised "hygienic table trials" to test the safety of food additives and preservatives. His work contributed to the enactment of the Pure Food and Drug Act of 1906. He became the first commissioner of the FDA and later led the laboratories of Good Housekeeping Magazine. During World War I the Progressives' moral advice about food conservation was emphasized in large-scale state and federal programs designed to educate housewives. Large-scale foreign aid during and after the war brought American standards to Europe. From 1912 to the end of the 1930s researchers discovered and popularized the role of various vitamins and minerals in human health. Starting with iodized salt in 1924, commercially distributed food began to be fortified with vitamins and minerals. In 1932, milk began to be fortified with viosterol, a purified vitamin D2 product. Synthetic thiamin (vitamin B1) first became available after 1936 and bakers began voluntarily enriching bread with high-vitamin yeast or synthetic vitamins in the late 1930s. The cookware of the period was made of cast iron and these were thoroughly seasoned with pork fat. Fried salt pork with gravy was an indulgent fat-laden dish often served with a side of boiled potatoes. In the Appalachian region a dish called "killed lettuce" was made with pokeweed, dandelion and assorted wild greens that were drizzled with hot bacon grease until wilted or "killed". Pie could be served up to three times a day and many varieties were prepared depending on the season. During the spring months, pies would be made of rhubarb and strawberry; in summer peach, cherry, blackberry, blueberry, elderberry and grape; and in fall apple. The staples of the urban diet were bread, dairy and canned goods. Dinner might be tomato bisque from a can topped with cream or a salad made of canned string beans and mayonnaise. Many preferred to purchase food at delicatessens, rather than attempt to prepare meals in the cramped kitchenettes. German delicatessens in cities like New York and Milwaukee sold imported cold cuts, potato salads, schmierkase, wienerwurst, North Sea herring, assorted pickles (pickled cucumber) and other prepared foods. Jewish immigrants from Germany soon followed suit, replacing pork dishes with corned beef (salt-cured beef) and pastrami. Ice cream soda was served at soda fountains, along with various other early "soda water" recipes like the Garden Sass Sundae (rhubarb) or the Oh-Oh-Cindy Sundae (strawberry ice cream topped with chocolate syrup, chopped nuts, whipped cream and candied cherries). During that same time frame, grain-feeding of cattle during low pasture months made milk increasingly available year-round. The invention of milking machines lowered production costs. Pasteurization, homogenization, evaporation, condensation, and refrigeration along with glass milk bottles, wax-paper cartons, and then plastic bottles made milk increasingly available and safe for urban consumers. Milk became a staple food item and an increasingly important ingredient in American cuisine. Examples include the root beer float and the milkshake. Pork was a staple of the rural diet through the Southern and Midwestern United States. Lard was used for baking, frying and even as a seasoning. Major railroads featured upscale cuisine in their dining cars. Restaurant chains emerged with standardized decor and menus, including the Fred Harvey restaurants along the route of the Santa Fe Railroad in the Southwest. World War II and later The Food and Nutrition Board of the National Academy of Science established the first set of "Recommended Dietary Allowances" in 1941. In 1943, the US War Foods Administration issued the War Food Order No. 1, which made enriched bread the temporary law of the land. In 1945 George Stigler published an article on "The cost of subsistence" which described the so-called Stigler diet, his solution to the problem of providing a diet that met the RDA at a minimum cost. The logistical requirements of the US military during WW2 and the Korean War spurred the development and growth of the processed foods industry in the US. These wars encouraged the production of shelf-stable ingredients processed on a vast industrial scale. Examples include powdered milk, powdered eggs, potato flakes, and frozen concentrated orange juice. After the war, low-cost, highly processed foods became one of the foundational elements of an era of mass prosperity. Many companies in the American food industry developed new products requiring minimal preparation, such as frozen entrees. One such example is the TV dinner in which a multi-course meal was assembled in aluminum packaging in a food factory and flash frozen, then reheated at home in a thermal oven to be served while watching TV. Convenience foods of the era were designed to simplify home preparation. One example is macaroni & cheese created using a powdered artificial cheese product that is reconstituted at home with fresh milk. Newspapers and magazines ran recipe columns, aided by research from corporate kitchens, which were major food manufacturers like General Mills, Campbell's, and Kraft Foods. For example, General Mills Betty Crocker's Cookbook, first published in 1950, was a popular book in American homes. Highly processed foods of the mid-20th century included novelty elements like multi-colored Jell-O using various chemical food colorings, prepared breakfast cereals marketed to children with large amounts of sugar and artificial colors (e.g. Froot Loops). Fruit-flavored punches made with artificial fruit flavorings (e.g. Tang, Hi-C). Mid-20th-century foods also added novelty packaging elements like spray cheese in an aerosol can, pimento-stuffed olives, and drink pouches. The development of the microwave oven resulted in the creation of industrial food products and packaging intended to take advantage of the opportunities and overcome the unique challenges of that technology. Microwave popcorn is an example of such a product. Throughout the second half of the 20th century the US commercial food system has become increasingly dependent on subsidized maize (corn) production to provide feed for livestock and ingredients for human foods such as high-fructose corn syrup. It is estimated that the typical American gets 70 percent of their carbon intake from maize (corn) sources. The last half of the 20th century saw the development of controversial technological innovations intended to lower the cost of, improve the quality of, or increase the safety of commercial food including: food irradiation, genetically modified organisms, livestock treated with antibiotics/hormones, and concentrated animal feeding operations. Activists have raised concerns about the wholesomeness, safety, or humaneness of these innovations and recommend alternatives such as organic produce, veganism/vegetarianism, and locavore diets. Fast-food restaurants with standardized product and franchised service models began to appear and spread with the development of the highway system. White Castle (1916) was one of the first examples. Franchising was introduced in 1921 by A&W Root Beer. The McDonald brothers created their "Speedee Service System" in 1948. Other examples include Burger King, KFC, Wendy's, Pizza Hut, Little Caesars, Domino's Pizza and Papa John's Pizza. Ethnic influences One signature characteristic of American cooking is the fusion of multiple ethnic or regional approaches into completely new cooking styles. For example, spaghetti is Italian, while hot dogs are German; a popular meal, especially among young children, is spaghetti containing slices of hot dogs. Since the 1960s, Asian cooking has played a particularly large role in American fusion cuisine. Some dishes that are typically considered American have their origins in other countries. American cooks and chefs have substantially altered these dishes over the years, to the degree that the dishes now enjoyed around the world are considered to be American. Hot dogs and hamburgers are both based on traditional German dishes, but in their modern popular form they can be reasonably considered American dishes. Pizza is based on the traditional Italian dish, brought by Italian immigrants to the United States, but varies highly in style based on the region of development since its arrival. For example, Chicago style has focus on a thicker, taller crust, whereas a "New York Slice" is known to have a much thinner crust which can be folded. These different types of pizza can be advertised throughout the country and are generally recognizable and well-known, with some restaurants going so far as to import New York tap water from a thousand or more miles away to recreate the signature style in other regions. Some dishes that Americans think of as being of "foreign" in origin and/or associated with a particular immigrant group were in fact invented in America and customized to American tastes. For example General Tso's chicken was invented by Chinese or Taiwanese chefs working in New York in the early 1970s. The dish is unknown in China, except for a distant resemblance to a much spicier dish from Hong Kong said to have influenced the American version. The fortune cookie was likewise invented in California in the early 1900s and is known in Asia only as an American style food. A wave of celebrity chefs began with Julia Child and Graham Kerr in the 1970s, with many more following after the rise of cable channels like Food Network. Probably the best-known television chef was Child, who taught French cuisine in her weekly show, The French Chef. By the beginning of the 21st century, regional variations in consumption of meat began to reduce, as more meat was consumed overall. Saying they eat too much protein, the 2015–2020 Dietary Guidelines for Americans asked men and teenage boys to increase their consumption of underconsumed foods such as vegetables. New American During the 1980s, upscale restaurants introduced a mixing of cuisines that contain Americanized styles of cooking with foreign elements commonly referred to as New American cuisine, a type of fusion cuisine combining flavors from the melting pot of traditional American cooking techniques with those from other cultures, sometimes adding molecular gastronomy components. 21st century In the 21st century, vegan and vegetarian meals increased in popularity, with more restaurants catering to vegans and vegetarians. Regional cuisines In the present day, the modern cuisine of the United States is very regional in nature. Excluding Alaska and Hawaii, the terrain spans from east to west and more than from north to south. Northeast New England New England cuisine traces its roots to English cuisine and the Native American cuisine of the Abenaki, Narragansett, Niantic, Wabanaki, Wampanoag, and other native peoples. It also includes influences from French, Italian, and Portuguese cuisine, among others. It is characterized by the extensive use of potatoes, beans, dairy products and seafood. Corn, historically the main crop grown by Native American tribes in New England, continues to be grown in all New England states. It is traditionally used in hasty pudding, cornbread and corn chowder. Three prominent foodstuffs native to New England are maple syrup, cranberries and blueberries. Maine is the only state with a commercial wild blueberry industry, with 105 million pounds harvested in 2021. Initial European colonists came from East Anglia in England. East Anglian cookery included dishes like suet puddings, soda breads, and a few shellfish delicacies, and would have been quite simple in contrast to the dishes prepared in contemporary London. Most of this cuisine was one-pot cookery, which developed into such dishes as succotash, chowder, baked beans, and others. The most popular starches in New England cuisine include potatoes and cornmeal, and a few native breads like Anadama bread, johnnycakes, bulkie rolls, Parker House rolls, popovers, ployes, and New England brown bread. Because of the influence of New Englander health reformers, the most well known of whom is Sylvester Graham, this region is fairly conservative with its spices, but typical spices include nutmeg, ginger, cinnamon, cloves, and allspice, especially in desserts, and for savory foods, thyme, black pepper, sea salt, and sage. Typical condiments include maple syrup, grown from the native sugar maple, molasses, and cranberry sauce. The fruits of the region include the Vitis labrusca grapes used in grape juice made by companies such as Welch's, along with jelly, Kosher wine by companies like Mogen David and Manischewitz along with other wineries that make higher quality wines. Though not anywhere near as productive a region as the top three apple-producing regions, apples have been a staple of New England foodways since at least the 1640s, and it is here that a very high amount of heirloom varieties are found, many of them gaining renewed interest as part of locavore movements and the re-emergence of cider as a beverage of choice. Apples from New England would include varieties imported from their earliest in Europe and a few natives, like Baldwin, Lady, Mother, Pomme Grise, Porter, Roxbury Russet, Rhode Island Greening, Sops of Wine, Hightop Sweet, Peck's Pleasant, Titus Pippin, Westfield-Seek-No-Further, and Duchess of Oldenburg. Beach plums a small native species with fruits the size of a pinball, are sought after in summer to make into a jam. Cranberries are another fruit indigenous to the region, often collected in autumn in huge flooded bogs. Thereafter they are juiced so they can be drunk fresh for breakfast, or dried and incorporated into salads and quickbreads. Winter squashes like pumpkin and butternut squashes have been a staple for generations owing to their ability to keep for long periods over icy New England winters and being an excellent source of beta carotene; in summer, they are replaced with pattypan and zucchini, the latter brought to the region by immigrants from Southern Italy a century ago. Blueberries are a very common summertime treat owing to them being an important crop, and find their way into muffins, pies and pancakes. Historically New England and the other original 13 colonies were major producers of hard cider and the only reason why this changed were that immigrants from Western and Central Europe preferred beer, especially lagers, to apple based alcohol. In more recent years cider has made a roaring comeback nationwide, with New England being the first to break out of the box and with many pomologists scouring the woods for abandoned apple trees and heirloom varieties to add to the cider press. Angry Orchard is a local commercial brand that began in New Hampshire but has since skyrocketed in sales, with other large marques following suit around the land. Typical favorite desserts are quite diverse, and encompass hasty pudding, blueberry pie, whoopie pies, Boston cream pie, pumpkin pie, Joe Frogger cookies, hand-crafted ice cream, Hermit cookies, and the chocolate chip cookie, invented in Massachusetts in the 1930s. New England is noted for having a heavy emphasis on seafood, a legacy inherited from coastal tribes like the Wampanoag and Narragansett, who equally used the rich fishing banks offshore for sustenance. Favorite fish include cod, salmon, winter flounder, haddock, striped bass, pollock, hake, bluefish, and, in southern New England, tautog. All of these are prepared numerous ways, such as frying cod for fish fingers, grilling bluefish over hot coals for summertime, smoking salmon or serving a whole poached one chilled for feasts with a dill sauce, or, on cold winter nights, serving haddock baked in casserole dish with a creamy sauce and crumbled breadcrumbs as a top so it forms a crust. Clam cakes, a savory fritter based on chopped clams, are a specialty of Rhode Island. Also, a hard shell clam is unique to Rhode Island called the Quahoag which is used in clear chowders. Farther inland, brook trout, largemouth bass, and herring are sought after, especially in the rivers and icy finger lakes in upper New England where New Englanders will fly fish for them in summertime. Meat is present though not as prominent, and typically is either stewed in dishes like Yankee pot roast and New England boiled dinner or braised, as in a picnic ham; these dishes suit the weather better as summers are humid and hot but winters are raw and cold, getting below 0 °C for most of the winter and only just above it by March. The roasting of whole turkeys began here as a centerpiece for large American banquets, and like all other East Coast tribes, the Native American tribes of New England prized wild turkeys as a source of sustenance and later Anglophone settlers were enamored of cooking them using methods they knew from Europe: often that meant trussing the bird and spinning it on a string or spit roasting. Today turkey meat is a key ingredient in soups, and also a favorite in several sandwiches like the Pilgrim. For lunch, hot roast beef is sometimes chopped finely into small pieces and put on a roll with salami and American or provolone cheese to make a steak bomb. Bacon is often maple cured, and often bacon or salt pork drippings are an ingredient in corn chowder, a cousin of clam chowder. Veal consumption was prevalent in the North Atlantic States prior to World War II. A variety of linguiça is favored as a breakfast food, introduced by Portuguese fishermen and Brazilian immigrants. Dairy farming and its resultant products figure strongly on the ingredient list, and homemade ice cream is a summertime staple of the region: it was a small seasonal roadside stand in Vermont that eventually became the internationally famous Ben and Jerry's ice cream. Vermont is known for producing farmhouse style cheeses, especially a type of cheddar. The recipe goes all the way back to colonial times when English settlers brought the recipe with them from England and found the rocky landscape eminently suitable to making the cheese. Today Vermont has more artisanal cheese makers per capita than any other state, and diversity is such that interest in goat's milk cheeses has become prominent. Crustaceans and mollusks are also an essential ingredient in the regional cookery. Maine and Massachusetts, in more recent years, have taken to harvesting peekytoe crab and Jonah crab and making crab bisques, based on cream with 35% milkfat, and crabcakes out of them: often these were overlooked as bycatch of lobster pots by fishermen of the region, but in the past 30 years their popularity has firmly established them as a staple. They even appear on the menu as far south as to be out of the region in New York, where they are sold to four star restaurants in the form of cocktail claws. Whelks are eaten in salad, and lobster, which is indigenous to the coastal waters of the region and are a feature of many dishes, baked, boiled, roasted, and steamed, or simply eaten as a sandwich, chilled with mayonnaise and chopped celery in Maine and Massachusetts, or slathered with melted butter on Long Island and in Connecticut. Shellfish of all sorts are part of the diet, and shellfish of the coastal regions include little neck clams, sea scallops, blue mussels, oysters, soft shell clams, and razor shell clams. Much of this shellfish contributes to New England tradition, the clambake. The clambake as known today is a colonial interpretation of an American Indian tradition. In summer, oysters and clams are dipped in batter and fried, often served in a basket with french fries, or commonly on a wheaten bun as a clam roll. Oysters are otherwise eaten chilled on a bed of crushed ice on the half shell with mignonette sauce, and are often branded on where they were harvested. Large quahogs are stuffed with breadcrumbs and seasoning and baked in their shells, and smaller ones often find their way into clam chowder. Other preparations include clams casino, clams on the half shell served stuffed with herbs like oregano and streaky bacon. Southern New England, particularly along the coast, shares many specialties with the Mid-Atlantic, including especially dishes from Jewish and Italian-American cuisine. Coastal Connecticut is known for distinctive kinds of pizza, locally called apizza (pronounced locally as abeetz), differing in texture (thin and slightly blackened) and toppings (such as clams) from pizza further south in the so-called pizza belt, which stretches from New Haven, Connecticut southward through New York, New Jersey, and into Maryland. Delaware Valley and Mid-Atlantic The mid-Atlantic states comprise the states of New York, New Jersey, Delaware, Pennsylvania, and Northern Maryland. The oldest major settlement in this area of the country is found in the most populous city in the nation, New York, founded in 1625 by the Dutch. Today, it is a major cultural capital of the United States. The influences on cuisine in this region are extremely eclectic owing to the fact that it has been and continues to be a gateway for international culture as well as a gateway for new immigrants. Going back to colonial times, each new group has left their mark on homegrown cuisine and in turn the cities in this region disperse trends to the wider United States. In addition, cities like New York and Philadelphia have had the past influence of Dutch, Italian, German, Irish, British, and Jewish cuisines, and that continues to this day. Baltimore has become the crossroads between North and South, a distinction it has held since the end of the Civil War. A global power city, New York is well known for its diverse and cosmopolitan dining scene. Its restaurants compete fiercely for good reviews in the Food and Dining section of The New York Times, online guides, and Zagat's, the last of which is widely considered the premier American dining guide, published yearly and headquartered in New York. Many of the more complicated dishes with rich ingredients like Lobster Newberg, waldorf salad, vichyssoise, eggs benedict, and the New York strip steak were born out of a need to entertain and impress the well-to-do in expensive bygone restaurants like Delmonico's and still standing establishments like the Waldorf-Astoria Hotel. Modern commercial American cream cheese was developed in 1872. Since the first reference to an alcoholic mixed drink called a cocktail comes from New York State in 1803, it is not a surprise that there have been many cocktails invented in New York and the surrounding environs. Even today New York bars are noted for being highly influential in making national trends. Cosmopolitans, Long Island iced teas, Manhattans, Rob Roys, Tom Collins, Aviations, and Greyhounds were all invented in New York bars, and the gin martini was popularized in New York in speakeasies during the 1920s, as evidenced by its appearance in the works of New Yorker and American writer F. Scott Fitzgerald. Like its neighbor Philadelphia, many rare and unusual liquors and liqueurs often find their way into a mixologist's cupboard or restaurant wine list. New York State is the third most productive area in the country for wine grapes, just behind California and Washington. It has AVA's near the Finger Lakes, the Catskills, and Long Island, and in the Hudson Valley has the second-most productive area in the country for growing apples, making it a center for hard cider production, just like New England. Pennsylvania has been growing rye since Germans began to emigrate to the area at the end of the 17th century and required a grain they knew from Germany. Therefore, overall it is not unusual to find New York grown Gewürtztraminer and Riesling, Pennsylvania rye whiskey, or marques of locally produced ciders like Original Sin on the same menu. Since their formative years, New York, Philadelphia, and Baltimore have welcomed immigrants of every kind to their shores, and all three have been an important gateway through which new citizens to the general United States arrive. Traditionally natives have eaten cheek to jowl with newcomers for centuries as the newcomers would open new restaurants and small businesses and all the different groups would interact. Even in colonial days this region was a very diverse mosaic of peoples, as settlers from Switzerland, Wales, England, Ulster, Wallonia, Holland, Gelderland, the British Channel Islands, and Sweden sought their fortune in this region. This is very evident in many signature dishes and local foods, all of which have evolved to become American dishes in their own right. The original Dutch settlers of New York brought recipes they knew and understood from the Netherlands and their mark on local cuisine is still apparent today: in many quarters of New York their version of apple pie with a streusel top is still baked. In the colony of New Amsterdam, their predilection for waffles in time evolved into the American national recipe and forms part of a New York brunch. They also made coleslaw, originally a Dutch salad, but today accented with the later 18th-century introduction of mayonnaise. The doughnut began its life originally as a New York pastry that arrived in the 18th century as the Dutch olykoek, with later additions from other nations of Europe like the Italian zeppole, the Jewish/Polish pączki, and the German Berliner arriving in the 19th century to complete the variety found in modern doughnuts today. Crab cakes were once a kind of English croquette, but over time as spices have been added they and the Maryland crab feast became two of Baltimore's signature dishes. Fishing for blue crab is a favorite summer pastime in the waters off Maryland, New Jersey, and Delaware where they may grace the table at summer picnics. Other mainstays of the region have been present since the early years of American history, like oysters from Cape May, the Chesapeake Bay, and Long Island, and lobster and tuna from the coastal waters found in New York and New Jersey. Philadelphia Pepper Pot, a tripe stew, was originally a British dish but today is a classic of home cooking in Pennsylvania alongside bookbinder soup, a type of turtle soup. In the winter, New York pushcarts sell roasted chestnuts, a delicacy dating back to English Christmas traditions, and it was in New York and Pennsylvania that the earliest Christmas cookies were introduced: Germans introduced crunchy molasses-based gingerbread and sugar cookies in Pennsylvania, and the Dutch introduced cinnamon-based cookies, all of which have become part of the traditional Christmas meal. Scrapple was originally a type of savory pudding that early Pennsylvania Germans made to preserve the offal of a pig slaughter. The Philadelphia soft pretzel was originally brought to Eastern Pennsylvania in the early 18th century, and later, 19th-century immigrants sold them to the masses from pushcarts to make them the city's best-known bread product, having evolved into its own unique recipe. After the 1820s, new groups began to arrive and the character of the region began to change. There had been some Irish from Ulster prior to 1820, however largely they had been Protestants with somewhat different culture and (often) a different language than the explosion of emigrants that came to Castle Garden and Locust Point in Baltimore in their masses starting in the 1840s. The Irish arrived in America in a rather woeful state, as Ireland at the time was often plagued by some of the worst poverty in Europe and often heavy disenfranchisement among the masses. Many of them arrived barely alive having ridden coffin ships to the New World, very sick with typhus and gaunt from prolonged starvation. In addition, they were the first to face challenges other groups did not have: they were the first large wave of Catholics. They faced prejudice for their faith and the cities of Philadelphia, New York, and Baltimore were not always set up for their needs. For example, Catholic bishops in the U.S. mandated until the 1960s that all Catholics were forbidden from eating red meat on Fridays and during Lent, and attending Mass sometimes conflicted with work as produce and meat markets would be open on high holy days; this was difficult for Irishmen supporting families since many worked as laborers. Unsurprisingly, many Irishmen also found their fortunes working as longshoremen, which would have given their families access to fish and shellfish whenever a fisherman made berth, which was frequent on the busy docks of Baltimore and New York. Though there had been some activity in Baltimore in founding a see earlier by the Carrolls, the Irish were the first major wave of Catholic worship in this region, and that meant bishops and cardinals sending away to Europe for wine. Wine, with water, is consecrated as part of the Catholic Mass. Taverns had existed prior to their emigration to America in the region, though the Irish brought their particular brand of pub culture and founded some of the first saloons and bars that served Dublin style stout and red ale; they brought with them the knowledge of single-malt style whiskey and sold it. The Irish were the first immigrant group to arrive in this region in massive millions, and these immigrants also founded some of the earliest saloons and bars in this region, of which McSorley's is a still operating example. It was also in this region that the Irish introduced something that today is a very important festival in American culture that involves a large amount of food, drink, and merry making: Halloween. In England and Wales, where prior immigrants had come from, the feast of All Hallows Eve had died out in the Reformation, dismissed as superstition and excess having nothing to do with the Bible and often replaced with the festival of Guy Fawkes Night. Other immigrant groups like the Germans preferred to celebrate October 31 as Reformation Day, and after the American Revolution all of the above were less and less eager to celebrate the legacy of an English festival given they had fought against Great Britain for their independence. The Catholicism of the Irish demanded attendance at church on November 1 and charity and deeds, not just faith, as a cornerstone of dogma, and many of their older traditions survived the Reformation and traveled with them. Naturally, they went door-to-door to collect victuals for masked parties as well as gave them out, like nuts to roast on the fire, whiskey, beer, or cider, and barmbracks; they also bobbed for apples and made dumb cakes. Later in the century they were joined by Scots going guising, children going door-to-door to ask for sweets and treats in costume. From the Mid-Atlantic this trend spread to be nationwide and evolved into American children trick-or-treating on October 31 wearing costumes and their older counterparts having wild costume parties with various foods and drinks such as caramel apples, candy apples, dirt cakes, punch, cocktails, cider (both alcoholic and non,) pumpkin pie, candy corn, chocolate turtles, peanut brittle, taffy, tipsy cake, and copious buckets full of candy; children carving jack-o-lanterns and eating squash derived foods derive from Halloween's heritage as a harvest festival and from Irish and Scottish traditions of carving turnips and eating root vegetables at this time of year. Bobbing for apples has survived to the present day as a Halloween party classic game, as has a variation on the parlor game of trying to grab an apple hanging from the ceiling blindfolded: it has evolved into trying to catch a donut in one's teeth. Immigrants from Southern Europe, namely Sicily, Campania, Lazio, and Calabria, appeared between 1880 and 1960 in New York, New Jersey, Pennsylvania, and Eastern Maryland hoping to escape the extreme poverty and corruption endemic to Italy. Typically none of them spoke English, but rather dialects of Italian and had a culture that was more closely tied to the village they were born in than the high culture only accessible to those who could afford it at this time; many could not read or write in any language. They were employed in manual labor or factory work but it is because of them that dishes like spaghetti with meatballs, New York–style pizza, calzones, and baked ziti exist, and Americans of today are very familiar with semolina based pasta noodles. Their native cuisine had less of an emphasis on meat, as evidenced by dishes they introduced like pasta e fagioli and minestrone, but the dishes they created in America often piled it on as a sign of wealth and newfound prosperity since for the first time even cheap cuts of it were affordable. The American recipe for lasagna is proof of this, as mostly it is derived from the Neapolitan version of the dish with large amounts of meat and cheese. New York–style hot dogs came about with German-speaking emigrants from Austria and Germany, particularly with the frankfurter sausage and the smaller wiener sausage; Jews would also contribute here by introducing the kosher version of these sausages, made of beef rather than pork. Today, the New York–style hot dog with sauerkraut, mustard, and the optional cucumber pickle relish is such a part of the local fabric, that it is one of the favorite comestibles of New York and both the pork and the beef versions are beloved. Hot dogs are a typical street food sold year round in all but the most inclement weather from thousands of pushcarts. As with all other stadiums in Major League Baseball they are an essential for New York Yankees and the New York Mets games though it is the local style of preparation that predominates without exception. Hot dogs are also the focus of a televised eating contest on the Fourth of July in Coney Island, at Nathan's Famous, one of the earliest hot dog stands opened in the United States in 1916 by Nathan Handwerker. Handwerker was a Jewish man who emigrated from what is now Ukraine in 1912 and whose influence is felt today around the world. Coney Island is most famous for being a traditional boardwalk amusement park and the site of the world's first rollercoaster, a precursor of modern theme parks. Hot dogs are a staple of amusement parks 100 years later. A summertime treat, Italian ice, began its life as a sweeter adaptation of the Sicilian granita that was strictly lemon-flavored and brought to New York and Philadelphia. Its Hispanic counterpart, piragua, is a common shaved-ice treat brought to New York by Puerto Ricans in the 1930s. Unlike the original dish which included flavors like tamarind, mango, coconut, piragua is evolving to include flavors like grape and cherry, fruits which are impossible to grow in the tropical Puerto Rican climate and get exported back to the island from New York. Taylor Ham, a meat delicacy of New Jersey, first appeared around the time of the Civil War and today is often served for breakfast with eggs and cheese on a kaiser roll, a variant of a roll brought to the area by Austrians in the second half of the 19th century, now commonly used for sandwiches at lunchtime, often topped with poppyseeds. This breakfast meat is generally known as pork roll in southern New Jersey and Philadelphia, and Taylor Ham in northern New Jersey. Other dishes came about during the early 20th century and have much to do with delicatessen fare, set up largely by Jewish immigrants from Eastern Europe who came to America incredibly poor, often illiterate in any other language but Yiddish, and often banished from mainstream society in their place of origin for centuries. Most often they were completely unable to partake in the outdoor food markets that the general population utilized as most of the food for sale was not kosher. The influence of European Jewry before their destruction in the Holocaust on modern mid-Atlantic cooking remains strong and reinforced by their many descendants in the region. These currently form the largest concentration of Jews outside Tel Aviv and are very integrated into the local mainstream of New York in particular. American-style pickles, now a common addition to hamburgers and sandwiches, were brought by Polish Jews, and Austro-Hungarian Jews brought a recipe for almond horns that now is a common regional cookie, diverting from the original recipe in dipping the ends in dark chocolate. New York–style cheesecake has copious amounts of cream and eggs because animal rennet is not kosher and so could not be sold to a large number of the deli's clientele. New York inherited its bagels and bialys from Jews, as well as Challah bread. Pastrami first entered the country via Romanian Jews, and is a feature of many sandwiches, often eaten on marble rye, a bread that was born in the mid-Atlantic. Whitefish salad, lox, and matzoh ball soup are now standard fare made to order at local diners and delicatessens, but started their life as foods that made up a strict dietary code. Rugelach cookies and hamentashen are sweet staples still sold to the general public, but came to New York over a century ago with Ashkenazi Jews along with Jewish rye. Many of their dishes passed into the mainstream enough that they became standard fare in diners by the end of the 20th century, a type of restaurant that is now the most common in the region, and the subject matter of the artist Edward Hopper. In the past this sort of establishment was the haven of the short-order cook grilling or frying simple foods for the working man. Today typical service includes staples from this large region like beef on weck, Manhattan clam chowder, the club sandwich, Buffalo wings, Philadelphia cheesesteak, the black and white cookie, shoofly pie, snapper soup, Smith Island cake, blackout cake, grape pie, milkshakes, and the egg cream, a vanilla or chocolate fountain drink with a frothy top and fizzy taste. As in Hopper's painting from 1942, many of these businesses are open 24 hours a day. Midwest This region today comprises the states near the Great Lakes and also the Great Plains; much of it is prairie with very flat terrain. Winters are bitterly cold, windy, and wet. Midwestern cuisine today is a very eclectic and odd mix and match of foodways, covering everything from Kansas City–style barbecue to the Chicago-style hot dog, though many of its classics are very simple, hearty fare. This region was mostly untouched by European and American settlers until after the American Revolutionary War, and excepting Missouri and the heavily forested states near the Great Lakes, was mainly populated by nomadic tribes like the Sioux, Osage, Arapaho, and Cheyenne. As with most other American Indian tribes, these tribes consumed the Three Sisters of beans, maize, and squash, but also for thousands of years followed the herds of bison, hunting them on foot and later on horseback, typically using bow and arrow. There are buffalo jumps dating back nearly 10,000 years and several photographs and written accounts of trappers and homesteaders attesting to their dependence on the buffalo and to a lesser degree elk. After nearly wiping out elk and bison, this region has taken to raising bison alongside cattle for their meat and at an enormous profit, making them into burgers and steaks. Often that means harsh blizzards especially near the Great Lakes where Arctic winds blow off of Canada, where ice on rivers and lakes freezes thick enough for ice hockey, and for ice fishing for pike, walleye and panfish to be ubiquitous. In Minnesota, Wisconsin, and Michigan, they often become part of the local fish fry. The primary meats here are beef and poultry, since the Midwest has been raising turkeys, chickens, and geese for over 150 years. Chickens have been common for so long that the Midwest has several native breeds that are prized for both backyard farming and for farmer's markets, such as the Buckeye and Wyandotte. One, Billina, appears as a character in the second book of the Oz series by L. Frank Baum. Favorite fruits of the region include some native plants inherited from Native American tribes like the pawpaw, and American persimmons are also highly favored. As in the American South, pawpaws are the region's largest native fruit, about the size of a mango, often found growing wild come September; they are made into preserves and cakes and command quite a price at farmer's markets in Chicago. The American persimmon is often smaller than its Japanese cousin, about the size of a small plum, but in the Midwest and parts of the East it is the main ingredient in the steamed persimmon pudding, topped with crème anglaise. Other crops inherited from the Native Americans include wild rice, which grows on the banks of lakes and is a local favorite for fancy meals and today often used in stuffing for Thanksgiving. Typical fruits of the region are cold-weather crops. Once it was thought that its winters were too harsh for apples, but a breeder in Minnesota produced the Wealthy apple and it became the third-most productive region for apple growing in the country, with local varieties comprising Wolf River, Enterprise, Melrose, Paula Red, Rome Beauty, Honeycrisp, and the Red Delicious. Cherries are important to Michigan and Wisconsin grows many cranberries, a legacy of early-19th-century emigration of New England farmers. Crabapple jelly is a favorite condiment of the region. The influence of German, Scandinavian, and Slavic peoples on the northern portion of the region is very strong; many emigrated to Wisconsin, Minnesota, Michigan, Ohio, and Illinois in the 19th century to take advantage of jobs in the meatpacking business as well as being homesteaders and tradesmen. Bratwurst is a very common sausage eaten at tailgate parties for the Green Bay Packers, Chicago Bears, or Detroit Lions, often served boiled in lager beer with sauerkraut, different from many of the recipes currently found in Germany. Polish sausage, in particular a locally invented type of kielbasa, is essential for sporting events in Chicago: Chicago today has approximately 200,000 Polish speakers and has had a similar population for over 100 years. When Poles came to Chicago and surrounding cities from Europe, they brought with them long ropes of kielbasa, cabbage rolls, and pierogi. Poles that left Poland after the fall of the Berlin Wall and descendants of earlier immigrants still make them, and they remain common in local diners and delis. Today alongside the pierogi, the sausage is served on a long roll with mustard like a hot dog or as a Maxwell Street Polish, a sandwich with caramelized onions. In Cleveland, the same sausage is served in the form of the Polish boy, a sandwich made of french fries, spicy barbecue sauce, and coleslaw. Unlike cities in the East where the hot dog alone is traditional, fans of the Cleveland Indians, Detroit Tigers, Chicago Cubs, and Milwaukee Brewers favor two or three different kinds of sausage sold in the pushcarts outside the stadium. The hot dogs themselves tend to follow the Chicago style, with mustard and pickled vegetables. In Cincinnati, where the Cincinnati Reds play, there is a competitor in Cincinnati chili. Invented by Macedonian immigrants, it includes spaghetti as its base, chili with a Mediterranean-inspired spice mix, and cheddar cheese; the chili itself is often a topping for local hot dogs at games. In the Midwest and especially Minnesota, the tradition of the church potluck is a gathering where local foods reign, and has been since the era of the frontier; pioneers often needed to pool resources to have a celebration in the 19th century and that simply never changed. Nowhere is this more clear than with the hotdish, a type of casserole believed to have derived from a Norwegian recipe, it is usually topped with potatoes or tater tots. Next to the hotdish at potlucks usually glorified rice is found, a kind of rice pudding mixed with crushed pineapple and maraschino cherries. Next to that is the booyah, a thick soup made of meat, vegetables, and seasonings that is meant to simmer on the stove for up to two days. Lefse, traditionally a Scandinavian flatbread, has been handed down to descendants for over a hundred years and is common on the table. Behind that is venison, a popular meat around the Great Lakes and often eaten as steaks, sandwiches, and crown roasts for special events. Within Wisconsin, Minnesota and the Dakotas, tiger meat, a dish similar to steak tartare, is common. Last on the table are the dessert bars and brownies, created originally in 1898 in Chicago, now a global food and international favorite. Further south, barbecue has its own style in places in Kansas City and St. Louis different from the South and American West. Kansas City and St. Louis were and are important hubs for the railroad that connected the plains with the Great Lakes and cities farther east, like Philadelphia. At the turn of the 19th century, the St. Louis area, Omaha, and Kansas City had huge stockyards, waystations for cattle and pigs on their way east to the cities of the coast and north to the Great Lakes. They all had large growing immigrant and migrant populations from Europe and the South respectively, so the region has developed unique styles of barbecue. St. Louis–style barbecue favors a heavy emphasis on a sticky sweet barbecue sauce. Its standbys include the pork steak, a cut taken from the shoulder of the pig, grilled then slowly stewed in a pan over charcoal; crispy snoots, a cut from the cheek and nose of the pig that is fried up like cracklins and eaten dipped in sauce; pork spare ribs; and a mix of either beer-boiled bratwurst or grilled Italian sausage, flavored with fennel. Dessert is usually something like gooey butter cake, invented in the city in the 1930s. Kansas City–style barbecue uses several different kinds of meat, more than most styles of American barbecue—turkey, mutton, pork, and beef to name a few—but is distinct from St. Louis in that the barbecue sauce adds molasses in with the tomato-based recipe and typically has a more tart taste. Traditionally, Kansas City uses a low-and-slow method of smoking the meat in addition to just stewing it in the sauce. It also favors using hickory wood for smoking and continual watering or layering of the sauce while cooking to form a glaze; with burnt ends this step is necessary to create the "bark" or charred outer layer of the brisket. Southern United States When referring to the American South as a region, typically it should indicate Southern Maryland and the states that were once part of the Old Confederacy, with the dividing line between the East and West jackknifing about 100 miles west of Dallas, Texas, and mostly south of the old Mason–Dixon line. Cities found in this area include New Orleans, Atlanta, Washington, D.C., Memphis, Charleston, and Charlotte with Houston, Texas being the largest. The Florida Panhandle is usually considered part of the South, but the Florida peninsula (especially its lower half) is not. These states are much more closely tied to each other and have been part of U.S. territory for much longer than states much farther west than East Texas, and in the case of food, the influences and cooking styles are strictly separated as the terrain begins to change to prairie and desert from bayou and hardwood forest. This section of the country has some of the oldest known U.S. foodways, with some recipes almost 400 years old. Native American influences are still quite visible in the use of cornmeal as an essential staple and found in the Southern predilection for hunting wild game, in particular wild turkey, deer, woodcock, and various kinds of waterfowl; for example, coastal North Carolina is a place where hunters will seek tundra swan as a part of Christmas dinner; the original English and Scottish settlers would have rejoiced at this revelation owing to the fact that such was banned among the commoner class in what is now the United Kingdom, and naturally, their descendants have not forgotten. Native Americans also consumed turtles and catfish, specifically the snapping turtle, the alligator snapping turtle, and blue catfish. Catfish are often caught with one's bare hands, gutted, breaded, and fried to make a Southern variation on English fish and chips and turtles are turned into stews and soups. Native American tribes of the region such as the Cherokee or Choctaw often cultivated or gathered local plants like pawpaw, maypop and several sorts of squashes and corn as food. They also used spicebush and sassafras as spices, and the aforementioned fruits are still cultivated as food in the South. Maize is to this day found in dishes for breakfast, lunch and dinner in the form of grits, hoecakes, baked cornbread, and spoonbread, and nuts like the hickory, black walnut and pecan are commonly included in desserts and pastries as varied as mince pies, pecan pie, pecan rolls and honey buns (both are types of sticky bun), and quick breads, which were themselves invented in the South during the American Civil War. Peaches have been grown in this region since the 17th century and are a staple crop as well as a favorite fruit, with peach cobbler being a signature dessert. Early history European influence began soon after the settlement of Jamestown in 1607 and the earliest recipes emerged by the end of the 17th century. Specific influences from Europe were quite varied, and they remain traditional and essential to the modern cookery overall. German speakers often settled in the Piedmont on small farms from the coast, and invented an American delicacy that is now nationally beloved, apple butter, based on their recipe for apfelkraut, and later they introduced red cabbage and rye. From the British Isles, an enormous amount of influence was bestowed upon the South, specifically foodways from 17th- and 18th-century Ulster, the borderlands between England and Scotland, the Scottish Highlands, portions of Wales, the West Midlands, the West Country, Black Country and Southern England. Settlers bound for America fled the tumult of the Civil War, Ulster and the Highland Clearances. Often ships' manifests show their belongings nearly always included cookpots or bakestones and seed stock for plants like peaches, plums, and apples to grow orchards which they planted in their hundreds. Each group brought foods and ideas from their respective regions. Settlers from Ireland and Scotland were well known for creating peatreak and poitín, strong hard liquor based on fermenting potatoes or barley. In time they came up with a method for distilling a corn mash with added sugar and aging in charred barrels made of select hardwoods, which created a whiskey with a high proof. This gave birth to American whiskey and Kentucky bourbon, and its cousins moonshine and Everclear. Closer to the coast, 18th-century recipes for English trifle turned into tipsy cakes, replacing the sherry with whiskey and their recipe for pound cake, brought to the South around the same time, still works with American baking units: one pound sugar, one pound eggs, one pound butter, one pound flour. Common features Pork is the popular choice in 80% of Southern style barbecue and features in other preparations like sausages and sandwiches. For most Southerners in the antebellum period, corn and pork were staples of the diet. Country sausage is an ingredient in the Southern breakfast dish of biscuits and gravy. Country ham is often served for breakfast and cured with salt or sugar and hickory-smoked. Accompanying many meals is the southern style fluffy biscuit, where the leavening agent is baking soda and often includes buttermilk, and for breakfast they often accompany country ham, grits, and scrambled eggs. Desserts Desserts in the South tend to be quite rich and very much a legacy of entertaining to impress guests, since a Southern housewife was (and to a degree still is) expected to show her hospitality by laying out as impressive a banquet as she is able to manage. Desserts are vast and encompass Lane cake, sweet potato pie, peach cobbler, pecan pie, hummingbird cake, Jefferson Davis pie, peanut brittle, coconut cake, apple fritters, peanut cookies, Moravian spice cookies, chess pie, doberge cake, Lady Baltimore cake, bourbon balls, and caramel cake. American-style sponge cakes tend to be the rule rather than the exception as is American buttercream, a place where Southern baking intersects with the rest of the United States. Nuts like pecan and hickory tend to be revered as garnishes for these desserts, and they make their way into local bakeries as fillings for chocolates. Cajun and Creole cuisine of Louisiana In Louisiana, cooking methods have more in common with rustic French cuisines of the 17th and 18th century than anything ever found at the French court in Versailles or the bistros of 19th- and 20th-century Paris; this is especially true of Cajun cuisine. Cajun French is more closely related to dialects spoken in Northern Maine, New Brunswick, and to a lesser degree Haiti than anything spoken in modern France, and likewise their terminology, methodology, and culture concerning food is much more closely related to the styles of these former French colonies even today. Unlike other areas of the South, Cajuns were and still are largely Catholics and thus much of what they eat is seasonal; for example pork is an important component of the Cajun boucherie (a large community event where the hog is butchered, prepared with a fiery spice mix, and eaten snout to tail) but it is never consumed in the five weeks of Lent, when such would be forbidden. Cajun cuisine tends to focus on what is locally available, historically because Cajuns were often poor, illiterate, independent farmers and not plantation owners but today it is because such is deeply imbedded in local culture. Boudin is a type of sausage found only in this area of the country, and it is often by far more spicy than anything found in France or Belgium. Chaudin is unique to the area, and the method of cooking is comparable to the Scottish dish haggis: the stuffing includes onions, rice, bell peppers, spices, and pork sewn up in the stomach of a pig, and served in slices piping hot. Crawfish are a staple of the Cajun grandmother's cookpot, as they are abundant in the bayous of Southern Louisiana and a main source of livelihood, as are blue crabs, shrimp, corn on the cob, and red potatoes, since these are the basic ingredients of the Louisiana crawfish boil. New Orleans has been the capital of Creole culture since before Louisiana was a state. This culture is that of the colonial French and Spanish that evolved in the city of New Orleans, which was and still is quite distinct from the rural culture of Cajuns and dovetails with what would have been eaten in antebellum Louisiana plantation culture long ago. Cooking to impress and show one's wealth was a staple of Creole culture, which often mixed French, Spanish, Italian, German, African, Caribbean and Native American cooking methods, producing rich dishes like oysters bienville, pompano en papillote, and even the muffaletta sandwich. However, Louisiana Creole cuisine tends to diverge from the original ideas brought to the region in ingredients: profiteroles, for example, use a near identical choux pastry to that which is found in modern Paris but often use vanilla or chocolate ice cream rather than custard as the filling, pralines nearly always use pecan and not almonds, and bananas foster came about when New Orleans was a key port for the import of bananas from the Caribbean Sea. Gumbos tend to be thickened with okra, or the leaves of the sassafrass tree. Andouille is often used, but not the andouille currently known in France, since French andouille uses tripe whereas Louisiana andouille is made from a Boston butt, usually inflected with pepper flakes, and smoked for hours over pecan wood. Other ingredients that are native to Louisiana and not found in the cuisine of modern France would include rice, which has been a staple of both Creole and Cajun cooking for generations, and sugarcane, which has been grown in Louisiana since the early 1800s. Ground cayenne pepper is a key spice of the region, as is the meat of the American alligator, something settlers learned from the Choctaws and Houma. The maypop plant has been a favorite of Southerners for 350 years; it gives its name to the Ocoee River in Tennessee, a legacy of the Cherokees, and in Southern Louisiana it is known as liane de grenade, indicating its consumption by Cajuns. It is a close relative of the commercial passionfruit, similar in size, and is a common plant growing in gardens all over the South as a source of fresh summertime fruit. African American influences West African influences came with enslaved peoples from Ghana, Benin, Mali, Congo, Angola, Sierra Leone, Nigeria, and other portions of the Gold Coast, and the mark Africans and their descendants, the African Americans, have made on Southern food is strong today and an essential addition to the Southern table. Crops like okra, sorghum, sesame seeds, eggplant, and many different kinds of melons were brought with them from West Africa along with the incredibly important introduction of rice to the Carolinas and later to Texas and Louisiana, whence it became a staple grain of that region and still remains a staple in those areas today, found in dishes like Hoppin John, purloo, and Charleston red rice. Like the poorer indentured servants that came to the South, slaves often got the leftovers of what was slaughtered for the consumption of the master of the plantation and so many recipes had to be adapted for offal, like pig's ears and fatback though other methods encouraged low and slow methods of cooking to tenderize the tougher cuts of meat, like braising, smoking, and pit roasting, the last of which was a method known to West Africans in the preparation of roasting goat. Peanut soup is one of the oldest known recipes brought to Virginia by Africans and over time, through their descendants, it has become creamier and milder tasting than the original. Florida cuisine Certain portions of the South often have their own distinct subtypes of cuisine owing to local history and landscape. Floridian cuisine, for example, has a distinct way of cooking that includes different ingredients, especially south of Tampa and Orlando. Spain had control of the state until the early 19th century and used the southern tip as an outpost to guard the Spanish Main beginning in the 1500s, but Florida kept and still maintains ties with the Caribbean Sea, including the Bahamas, Haiti, Cuba, Puerto Rico, the Dominican Republic, and Jamaica. South of Tampa, there are and have been for a long time many speakers of Caribbean Spanish, Haitian French, Jamaican Patois, and Haitian Creole and each Caribbean culture has a strong hold on cooking methods and spices in Florida. In turn, each mixes and matches with the foodways of the Seminole tribe and Anglophone settlers. Thus, for almost 200 years, Floridian cooking has had a more tropical flavor than any other Southern state. Allspice, a spice originally from Jamaica, is an ingredient found in spice mixes in summer barbecues along with ginger, garlic, scotch bonnet peppers, sea salt, and nutmeg; in Floridian cooking this is often a variant of Jamaican jerk spice. Coconuts are grown in the areas surrounding Miami and are shipped in daily through its port for consumption of the milk, meat, and water of the coconut. Bananas are not just the yellow Cavendish variety found in supermarkets across America: in Florida they are available as bananitos, colorados, plátanos, and maduros. The first of these is a tiny miniature banana only about 4-5 inches (10–13 cm) in length and it is sweet. The second has a red peel and an apple-like aftertaste, and the third and fourth are used as a starch on nearly every Caribbean island as a side dish, baked or fried: all of the above are a staple of Florida outdoor markets when in season and all have been grown in the Caribbean for almost 400 years. Mangoes are grown as a backyard plant in Southern Florida and otherwise are a favorite treat coming in many different shapes in sizes from Nam Doc Mai, brought to Florida after the Vietnam War, to Madame Francis, a mango from Haiti. Sweetsop and soursop are popular around Miami, but nearly unheard of in other areas of the South. Citrus is a major crop of Florida, and features at many breakfast tables and many markets, with the height of the season near the first week of January. Hamlin oranges are the main cultivar planted, and from this crop the rest of the United States and to a lesser extent Europe gets orange juice. Other plantings would include grapefruits, tangerines, clementine oranges, limes, and even a few more rare ones, like cara cara navels, tangelos, and the Jamaican Ugli fruit. Tomatoes, bell peppers, habanero peppers, and figs, especially taken from the Florida strangler fig, complete the produce menu. Blue crab, conch, Florida stone crab, red drum, dorado, and marlins tend to be local favorite ingredients. Dairy is available in this region, but it is less emphasized due to the year round warmth. Traditional key lime pie, a dessert from the islands off the coast of Miami, is made with condensed milk to form the custard with the eye wateringly tart limes native to the Florida Keys in part because milk would spoil in an age before refrigeration. Pork in this region tends to be roasted in methods similar to those found in Puerto Rico and Cuba, owing to mass emigration from those countries in the 20th century, especially in the counties surrounding Miami. Orange blossom honey is a specialty of the state, and is widely available in farmer's markets. Caribbean lobster is a favorite special meal eagerly sought after by Floridians as it is found as far north as Fort Myers: spear diving and collecting them from reefs in the Florida Keys and near rocky shoals is a common practice of local scuba divers. Other small game Ptarmigan, grouse, crow, blackbirds, dove, duck and other game fowl are consumed in the United States. In the American state of Arkansas, beaver tail stew is consumed in Cotton town. Squirrel, raccoon, possum, bear, muskrat, chipmunk, skunk, groundhog, pheasant, armadillo and rabbit are also consumed in the United States. Cuisine in the West Cooking in the American West gets its influence from Native American and Hispanophone cultures, as well as later settlers that came in the 19th century: Texas, for example, has some influence from Germany in its choice of barbecue by using sausages. Another instance can be found in the Northwestern region, which encompasses Oregon, Washington, and Northern California. All of the aforementioned rely on local seafood and a few classics of their own. In New Mexico, Colorado, Nevada, Arizona, Utah, West Texas, and Southern California, Mexican flavors and influences are extremely common, especially from the Mexican states of Chihuahua, Baja California, and Sonora. Northwest The Pacific Northwest as a region includes Alaska and the state of Washington near the Canada-US border and terminates near Sacramento, California. Here, the terrain is mostly temperate rainforest on the coast mixed with pine forest as one approaches the Canada-US border inland. One of the core favorite foodstuffs is Pacific salmon, native to many of the larger rivers of the area and often smoked or grilled on cedar planks. In Alaska, wild game like ptarmigan and moose meat feature extensively since much of the state is wilderness. Fresh fish like steelhead trout, Pacific cod, Pacific halibut, and pollock are fished for extensively and feature on the menu of many restaurants, as do a plethora of fresh berries and vegetables, like Cameo apples from Washington state, the headquarters of the U.S. apple industry, cherries from Oregon, blackberries, and marionberries, a feature of many pies. Hazelnuts are grown extensively in this region and are a feature of baking, such as in chocolate hazelnut pie, an Oregon favorite, and Almond Roca is a local candy. This region is also heavily dominated by some notable wineries producing a high-quality product. Like its counterpart on the opposite coast to the East, there is a grand variety of shellfish in this region. Geoducks are a native species of giant clam that have incredibly long necks; they are eaten by the bucketful and shipped to Asia for millions of dollars as they are believed to be an aphrodisiac. Gaper clams are a favorite food, often grilled or steamed in a sauce. Native California abalone is protected as a food source, and a traditional foodway predating settlement by whites, today featuring heavily in the cooking of fine restaurants as well as in home cooking, in mirin-flavored soups (the influence of Japanese cooking is strong in the region) noodle dishes and on the barbecue. Native Olympia oysters are served on the half shell as well as the Kumamoto oyster, introduced by Japanese immigrants and a staple at dinner as an appetizer. California mussels are a delicacy of the region, and have been a feature of the cooking for generations. There is evidence that Native American tribes consumed them up and down the California coast for centuries. Crabs are a delicacy, and included in this are Alaskan king crab, red crab, yellow crab, and Dungeness crab. Californian and Oregonian sportsmen pursue the last three extensively using hoop nets, and prepare them in a multitude of ways. Alaskan king crab, able to grow as large as 10 kg, is often served steamed for a whole table with lemon-butter sauce or put in chunks of salad with avocado, and native crabs are the base of dishes like the California roll, cioppino, a tomato-based fisherman's stew, and Crab Louie, another kind of salad native to San Francisco. Favorite grains are mainly wheat, and the region is known for sourdough bread. Cheeses of the region include Humboldt Fog, Cougar Gold and Teleme. Southwest and Southern California The states of the Four Corners (Arizona, New Mexico, Colorado, and Utah) plus Nevada, Southern California, and West Texas make up a large chunk of the United States. There is a distinct Hispanic accent to the cookery here, with each having cultural capitals in Albuquerque, Denver, Las Vegas, Los Angeles, Phoenix, Santa Fe, San Diego, and Tucson. For centuries, prior to California's statehood in the 1850s, it was part of the Spanish Empire, namely Alta California (modern California), Santa Fe de Nuevo México (modern New Mexico), and Tejas (modern Texas). Today it is home of a large population of Native Americans, Hispanos, descendants of the American frontier, Asian Americans, and immigrants from Mexico and Latin America. California, New Mexico, and Texas continue to hold their unique identities which is reflected in their distinct regional cuisines, the multiple cuisines of California, New Mexican cuisine, Texan cuisine, and Tex-Mex. Spanish is a commonly spoken secondary language here; the state of New Mexico has its own distinct dialect. With the exception of Southern California, the signature meat is beef, since this is one of the two regions in which cowboys lived and modern cattle ranchers still eke out their living today. High-quality beefstock is a feature that has been present in the region for more than 200 years and the many cuts of beef are unique to the United States. These cuts of meat are different from the related Mexican cuisine over the border in that certain kind of offal, like lengua (tongue) cabeza (head) and tripas (tripe) are considered less desirable and are thus less emphasized. Typical cuts would include the ribs, brisket, sirloin, flank steak, skirt steak, and t-bone. Historically, Spanish settlers that came to the region found it completely unsuitable to the mining operations that much older settlements in Mexico had to offer as their technology was not advanced enough to extract the silver that would later be found. They had no knowledge of the gold in California, which would not be found until 1848, and knew even less about the silver in Nevada, undiscovered until after the Civil War. Instead, in order to make the pueblos prosper, they adapted the old rancho system of places like Andalusia in Spain and brought the earliest beefstock, among these were breeds that would go feral and become the Texas longhorn, and Navajo-Churro sheep, still used as breeding stock because they are easy to keep and well adapted to the extremely arid and hot climate, where temperatures easily exceed 38 °C. Later, cowboys learned from their management practices, many of which still stand today, like the practical management of stock on horseback using the Western saddle. Likewise, settlers learned the cooking methods of those who came before and local tribes as well, for example, portions of Arizona and New Mexico still use the aforementioned beehive shaped clay contraption called an horno, an outdoor wood-fired oven both Native American tribes like the Navajo and Spaniards used for roasting meat, maize, and baking bread. Meats that see frequent use are elk meat, a favorite in crown roasts and burgers, and nearer the Mexican border rattlesnake, often skinned and stewed. The taste for alcohol tends toward light and clean flavors found in tequila, a staple of this region since the days of the Wild West and a staple in the bartender's arsenal for cocktails, especially in Las Vegas. In Utah, a state heavily populated by Mormons, alcohol is frowned upon by the Church of Jesus Christ of Latter-day Saints but still available in area bars in Salt Lake City, mainly consumed by the populations of Catholics and other Protestant denominations living there. Introduction of agriculture was limited prior to the 20th century and the development of better irrigation techniques, but included the addition of peaches, a crop still celebrated by Native American tribes like the Havasupai, and oranges. Today in Arizona, Texas, and New Mexico the favored orange today is the Moro blood orange, which often finds its way into the local cuisine, like cakes and marmalade. Pine nuts are a particular regional specialty and feature often in fine dining and cookies; in Nevada the Native American tribes that live there are by treaty given rights to exclusive harvest, and in New Mexico they reserve usage of the term piñon for certain species of indigenous pine nuts. From Native Americans, Westerners learned the practice of eating cactus fruit from the myriad species of opuntia that occupy the Chihuahuan, Sonoran, and Mojave desert lands. In California, Spanish missionaries brought with them the mission fig, and today this fruit is a delicacy. Cuisine in this region tends to have certain key ingredients: tomatoes, onions, black beans, pinto beans, rice, bell peppers, chile peppers, and cheese, in particular Monterey Jack, invented in Southern California in the 19th century and itself often further altered into pepper Jack where spicy jalapeño peppers are incorporated into the cheese to create a smoky taste. Chili peppers play an important role in the cuisine, with a few native to the region. This is especially true with the region's distinct New Mexico chile pepper, still grown by Hispanos of New Mexico and Puebloans the most sought after of which come from the Hatch valley, Albuquerque's Central Rio Grande, Chimayo, and Pueblos. In New Mexico, chile is eaten on a variety of foods, such as the green chile cheeseburger, made popular by fast food chains such as Blake's Lotaburger. Indeed, even national fast food chains operating in the state, such as McDonald's, offer locally grown chile on many of their menu items. In the 20th century a few more recent additions have arrived like the poblano pepper, rocoto pepper, ghost pepper, thai chili pepper, and Korean pepper, the last three especially when discussing Southern California and its large population from East and South Asia. Cornbread is consumed, however the recipe differs from ones in the East in that the batter is cooked in a cast-iron skillet. Outdoor cooking is popular and still utilizes an old method settlers brought from the East with them, in which a cast-iron Dutch oven is covered with the coals of the fire and stacked or hung from a tripod: this is different from the earthenware pots of Mexico. Tortillas are still made the traditional way here and form an important component of the spicy breakfast burrito, which contains ham, eggs, and salsa or pico de gallo. They are also used for regular burritos, which contains any combination of marinated meats, vegetables, and piquant chilis; smothered burritos, often both containing and topped with New Mexico chile sauces; quesadillas, a much loved grilled dish where cheese and other ingredients are stuffed between two tortillas and served by the slice; and steak fajitas, where sliced skirt steak sizzles in a skillet with caramelized onions. Unlike Mexico, tortillas of this region also may incorporate vegetables like spinach into the flatbread dough to make wraps, which were invented in Southern California. Food here tends to use pungent spices and condiments, typically chili verde sauce, various kinds of hot sauce, sriracha sauce, chili powder, cayenne pepper, white pepper, cumin, paprika, onion powder, thyme and black pepper. Nowhere is this fiery mix of spice more evident than in the dishes chili con carne, a meaty stew, and cowboy beans, both of which are a feature of regional cookoffs. Southern California has several additions like five spice powder, rosemary, curry powder, kimchi, and lemongrass, with many of these brought by recent immigration to the region and often a feature of Southern California's fusion cuisine, popular in fine dining. In Texas, the local barbecue is often entirely made up of beef brisket or large rib racks, where the meat is seasoned with a spice rub and cooked over coals of mesquite. In other portions of the state they smoke the meat and peppery sausages over high heat using pecan, apple, and oak wood and serve it with a side of pickled vegetables, a legacy of German and Czech settlers of the late 1800s. California is home to Santa Maria–style barbecue, where the spices involved generally are black pepper, paprika, and garlic salt, and grill over the coals of coast live oak. Native American additions may include Navajo frybread and corn on the cob, often roasted on the grill in its husk. A typical accompaniment or appetizer of all these states is the tortilla chip, which sometimes includes cornmeal from cultivars of corn that are blue or red in addition to the standard yellow of sweetcorn, and is served with salsa of varying hotness. Tortilla chips also are an ingredient in the Tex Mex dish nachos, where these chips are loaded with any combination of ground beef, melted Monterey Jack, cheddar, or Colby cheese, guacamole, sour cream, and salsa, and Texas usually prefers a version of potato salad as a side dish. For alcohol, a key ingredient is tequila: this spirit has been made on both sides of the US-Mexican border for generations, and in modern cuisine it is a must-have in a bartender's arsenal as well as an addition to dishes for sauteeing. Southern California is focused more towards the coast and has had more contact with immigration from the West Pacific and Baja California, in addition to having the international city of Los Angeles as its capital. Here, the prime mode of transportation is by car. Drive through fast food was invented in this area, but so was the concept of the gourmet burger movement, giving birth to chains like In-N-Out Burger, with many variations of burgers including chili, multiple patties, avocado, special sauces, and Angus or wagyu beef. Common accompaniments include thick milkshakes in various flavors like mint, chocolate, peanut butter, vanilla, strawberry, and mango. Smoothies are a common breakfast item made with fresh fruit juice, yogurt, and crushed ice. Agua fresca, a drink originated by Mexican immigrants, is a common hot-weather beverage sold in many supermarkets and at mom and pop stands, available in citrus, watermelon, and strawberry flavors; the California version usually served chilled without grain in it. The weather in Southern California is such that the temperature rarely drops below in winter, thus, sun-loving crops like pistachios, kiwifruit, avocadoes, strawberries, and tomatoes are staple crops of the region, the last often dried in the sun and a feature of salads and sandwiches. Olive oil is a staple cooking oil of the region and has been since the days of Junípero Serra; today the mission olive is a common tree growing in a Southern Californian's back garden. As a crop olives are increasingly a signature of the region along with Valencia oranges and Meyer lemons. Soybeans, bok choy, Japanese persimmon, thai basil, Napa cabbage, nori, mandarin oranges, water chestnuts, and mung beans are other crops brought to the region from East Asia and are common additions to salads as the emphasis on fresh produce in both Southern and Northern California is strong. Other vegetables and herbs have a distinct Mediterranean flavor which would include oregano, basil, summer squash, eggplant, and broccoli, with all of the above extensively available at farmers' markets all around Southern California. Naturally, salads native to Southern California tend to be hearty affairs, like Cobb salad and Chinese chicken salad, and dressings like green goddess and ranch are a staple. California-style pizza tends to have disparate ingredients with an emphasis on vegetables, with any combination of chili oil, prawns, eggs, chicken, shiitake mushrooms, olives, bell pepper, goat cheese, and feta cheese. Peanut noodles tend to include a sweet dressing with lo mein noodles and chopped peanuts. Fresh fish and shellfish in Southern California tends to be expensive in restaurants, but every year since the end of WWII, the Pismo clam festival has taken place where the local population takes a large species of clam and bakes, stuffs, and roasts it as it is a regional delicacy. Fishing for pacific species of octopus and the Humboldt squid are common, and both are a feature of East Asian and other L.A. fish markets. Lingcod is a coveted regional fish that is often caught in the autumn off the coast of San Diego and in the Channel Islands and often served baked. California sheephead are often grilled and are much sought after by spear fishermen and the immigrant Chinese population, in which case it is basket steamed. Most revered of all in recent years is the California spiny lobster, a beast that can grow to 44 lb, and is a delicacy that now rivals the fishery for Dungeness crab in its importance. Pacific and Hawaiian cuisine Hawaii is often considered to be one of the most culturally diverse U.S. states, as well as being the only state with an Asian-majority population and one of the few places where United States territory extends into the tropics. As a result, Hawaiian cuisine borrows elements of a variety of cuisines, particularly those of Asian and Pacific-rim cultures, as well as traditional native Hawaiian and a few additions from the American mainland. American influence in the last 150 years has brought cattle, goats, and sheep to the islands, introducing cheese, butter, and yogurt products, as well as crops like red cabbage. Major Asian and Polynesian influences on modern Hawaiian cuisine are from Japan, Korea, Vietnam, China (especially near the Pearl River delta,) Samoa, and the Philippines. From Japan, the concept of serving raw fish as a meal with rice was introduced, as was soft tofu, setting the stage for the popular dish called poke. From Korea, immigrants to Hawaii brought a love of spicy garlic marinades for meat and kimchi. From China, their version of char siu baau became modern manapua, a type of steamed pork bun with a spicy filling. Filipinos brought vinegar, bagoong, and lumpia, and during the 20th century immigrants from American Samoa brought the open pit fire umu and the Vietnamese introduced lemongrass and fish sauce. Each East Asian culture brought several different kinds of noodles, including udon, ramen, mei fun, and pho, and today these are common lunchtime meals. Much of this cuisine mixes and melts into traditions like the lu'au, whose traditional elaborate fare was once the prerogative of kings and queens but is today the subject of parties for both tourists and also private parties for the ‘ohana (meaning family and close friends.) Traditionally, women and men ate separately under the Hawaiian kapu system, a system of religious beliefs that honored the Hawaiian gods similar to the Maori tapu system, though in this case had some specific prohibitions towards females eating things like coconut, pork, turtle meat, and bananas as these were considered parts of the male gods. Punishment for violation could be severe, as a woman might endanger a man's mana, or soul, by eating with him or otherwise by eating the forbidden food because doing so dishonored the male gods. As the system broke down after 1810, introductions of foods from laborers on plantations began to be included at feasts and much cross pollination occurred, where Asian foodstuffs mixed with Polynesian foodstuffs like breadfruit, kukui nuts, and purple sweet potatoes. Some notable Hawaiian fare includes seared ahi tuna, opakapaka (snapper) with passionfruit, Hawaiian island-raised lamb, beef and meat products, Hawaiian plate lunch, and Molokai shrimp. Seafood traditionally is caught fresh in Hawaiian waters, and particular delicacies are ula poni, papaikualoa, ‘opihi, and ‘opihi malihini, better known as Hawaiian spiny lobster, Kona crab, Hawaiian limpet, and abalone, the last brought over with Japanese immigrants. Some cuisine also incorporates a broad variety of produce and locally grown agricultural products, including tomatoes, sweet Maui onions, taro, and macadamia nuts. Tropical fruits also play an important role in the cuisine as a flavoring in cocktails and in desserts, including local cultivars of bananas, sweetsop, mangoes, lychee, coconuts, papayas, and lilikoi (passionfruit). Pineapples have been an island staple since the 19th century and figure into many marinades and drinks. Common dishes found on a regional level Ethnicity-specific and immigrant influence The influence of ethnicity-specific cuisines like Italian cuisine and Mexican cuisine was present in the United States by World War I. There are recipes for Chilean meat pies, chicken chop suey, chow mein, Mexican pork pastries and Italian meatballs going back to at least the 1930s, but many of the recipes were Anglicized and they appeared relatively infrequently compared to Northern European recipes. 19th-century cookbooks bear evidence of diverse influences with some including recipes like Indian pickle, Italian pork and various curries. 19th-century literature shows knowledge of Jewish, Russian, Italian, Chinese and Greek-American cuisines, and foreign cookbooks continued to grow more detailed through World War I including recipes like Peruvian chicken, Mexican enchiladas, Chilean corn pudding and Hindustan chicken curry. Louise Rice, author of Dainty Dishes from Foreign Lands describes the recipes in her book as "not wholly vegetarian" though noting at the time of publication in 1911 that most of the recipes would likely be new to average American cooks and likely contain higher proportions of vegetables to meat. She includes Italian pasta recipes like macaroni in milk, soups and polentas and German recipes like liver dumplings called Leberknödel and a variation of Sauerbraten. The demand for ethnic foods in the United States reflects the nation's changing diversity as well as its development over time. According to the National Restaurant Association, Restaurant industry sales are expected to reach a record high of $476 billion in 2005, an increase of 4.9 percent over 2004... Driven by consumer demand, the ethnic food market reached record sales in 2002, and has emerged as the fastest growing category in the food and beverage product sector, according to USBX Advisory Services. Minorities in the U.S. spend a combined $142 billion on food and by 2010, America's ethnic population is expected to grow by 40 percent. A movement began during the 1980s among popular leading chefs to reclaim America's ethnic foods within its regional traditions, where these trends originated. One of the earliest was Paul Prudhomme, who in 1984 began the introduction of his influential cookbook, Paul Prodhomme's Louisiana Kitchen, by describing the over 200-year history of Creole and Cajun cooking; he aims to "preserve and expand the Louisiana tradition." Prodhomme's success quickly inspired other chefs. Norman Van Aken embraced a Floridian type cuisine fused with many ethnic and globalized elements in his Feast of Sunlight cookbook in 1988. California became swept up in the movement, then seemingly started to lead the trend itself, in, for example, the popular restaurant Chez Panisse in Berkeley. Examples of the Chez Panisse phenomenon, chefs who embraced a new globalized cuisine, were celebrity chefs like Jeremiah Tower and Wolfgang Puck, both former colleagues at the restaurant. Puck went on to describe his belief in contemporary, new style American cuisine in the introduction to The Wolfgang Puck Cookbook: Another major breakthrough, whose originators were once thought to be crazy, is the mixing of ethnic cuisines. It is not at all uncommon to find raw fish listed next to tortillas on the same menu. Ethnic crossovers also occur when distinct elements meet in a single recipe. This country is, after all, a huge melting pot. Why should its cooking not illustrate the American transformation of diversity into unity? Puck's former colleague, Jeremiah Tower became synonymous with California Cuisine and the overall American culinary revolution. Meanwhile, the restaurant that inspired both Puck and Tower became a distinguished establishment, popularizing its so called "mantra" in its book by Paul Bertolli and owner Alice Waters, Chez Panisse Cooking, in 1988. Published well after the restaurants' founding in 1971, this new cookbook from the restaurant seemed to perfect the idea and philosophy that had developed over the years. The book embraced America's natural bounty, specifically that of California, while containing recipes that reflected Bertoli and Waters' appreciation of both northern Italian and French style foods. Early ethnic influences While the earliest cuisine of the United States was influenced by Native Americans, the thirteen colonies, or the antebellum South, the overall culture of the nation, its gastronomy and the growing culinary arts became ever more influenced by its changing ethnic mix and immigrant patterns from the 18th and 19th centuries unto the present. Some of the ethnic groups that continued to influence the cuisine were here in prior years; others arrived more numerously during "The Great Transatlantic Migration" (of 1870–1914) or other mass migrations. Some of the ethnic influences could be found across the nation after the American Civil War and into the continental expansion for most of the 19th century. Ethnic influences already in the nation at that time would include the following groups and their respective cuisines: Select nationalities of Europe and the respective developments from early modern European cuisine of the colonial age: British-Americans and on-going developments in New England cuisine, the national traditions founded in the cuisine of the original thirteen colonies, The Cuisine of the Southern United States, and many aspects of other regional cuisine. Spanish Americans and early modern Spanish cuisine, as well as Basque-Americans and Basque cuisine. Early German-American or Pennsylvania Dutch and Pennsylvania Dutch cuisine French Americans and their New World regional identities such as: Acadian Cajun and Cajun cuisine Louisiana Creole and Louisiana Creole cuisine. Louisiana Creole (also called French Créole) refers to native-born people of the New Orleans area who are descended from the Colonial French and Spanish settlers of Colonial French Louisiana, before it became part of the United States in 1803 with the Louisiana Purchase. The various ethnicities originating from the early gastronomy and cuisines of the New World, Latin American cuisine, and North American cuisine: Native Americans in the United States and Native American cuisine African Americans and Soul food. Puerto Rican cuisine Mexican Americans and Mexican-American cuisine; as well as related regional cuisines: Tex-Mex (regional Texas and Mexican fusion) Some aspects of "Southwestern cuisine". New Mexican cuisine from New Mexico and the historical region of Santa Fe de Nuevo México, and now ethnically tied to the Pueblos and Hispanos of New Mexico. Later ethnic and immigrant influence Mass migrations of immigrants to the United States came over time. Historians identify several waves of migration to the United States: one from 1815 to 1860, in which some five million English, Irish, German, Scandinavian, and others from northwestern Europe came to the United States; one from 1865 to 1890, in which some 10 million immigrants, also mainly from northwestern Europe, settled; and a third from 1890 to 1914, in which 15 million immigrants, mainly from central, eastern, and southern Europe (many Austrian, Hungarian, Turkish, Lithuanian, Russian, Jewish, Greek, Italian, and Romanian) settled in the United States. Together with earlier arrivals to the United States (including the indigenous Native Americans, Hispanic and Latino Americans, particularly in the West, Southwest, and Texas; African Americans who came to the United States in the Atlantic slave trade; and early colonial migrants from Europe), these new waves of immigrants had a profound impact on national or regional cuisine. Some of these more prominent groups include the following: Albanian Americans—Albanian cuisine Arab Americans, particularly Lebanese Americans (the largest ethnic Arab group in the United States)—Arab cuisine, Lebanese cuisine Argentine Americans—Argentine cuisine Armenian Americans—Armenian cuisine Brazilian Americans—Brazilian cuisine Cambodian Americans—Cambodian cuisine Chinese Americans—American Chinese cuisine, Chinese cuisine Colombian Americans—Colombian cuisine Cuban Americans—Cuban cuisine Dominican Americans—Dominican Republic cuisine Dutch Americans—Dutch cuisine Ethiopian Americans—Eritrean Americans: Ethiopian cuisine, Eritrean cuisine in Los Angeles, Washington, D.C., Denver, New York. Filipino Americans—Filipino cuisine, Filipino-American cuisine French Americans—French cuisine German Americans—German cuisine (the Pennsylvania Dutch, although descended from Germans, arrived earlier than the bulk of German migrants and have distinct culinary traditions) Greek Americans—Greek-American cuisine, Greek cuisine, Mediterranean cuisine Guatemalan Americans—Guatemalan cuisine Haitian Americans—Haitian cuisine Honduran Americans—Honduran cuisine Hungarian Americans—Hungarian cuisine Indian Americans—Indian cuisine Irish Americans—Irish cuisine Italian Americans—Italian-American cuisine, Italian cuisine Japanese Americans—Japanese cuisine, with influences on the Hawaiian cuisine Jewish Americans—Jewish cuisine, with particular influence on New York City cuisine Korean Americans—Korean cuisine Lithuanian Americans—Lithuanian cuisine, Midwest Nicaraguan American—Nicaraguan cuisine Nigerian Americans—Nigerian cuisine Pakistani Americans—Pakistani cuisine Peruvian Americans—Peruvian cuisine Polish Americans—Polish cuisine, with particular impact on Midwest Polynesian Americans—Hawaiian cuisine Portuguese Americans—Portuguese cuisine Romanian Americans—Romanian cuisine Russian Americans—Russian cuisine, with particular impact on Midwest Salvadoran Americans—Salvadoran cuisine Scottish Americans—Scottish cuisine Spanish Americans—Spanish cuisine Thai Americans—Thai cuisine Turkish Americans—Turkish cuisine, Balkan cuisine Venezuelan Americans—Venezuelan cuisine Vietnamese Americans—Vietnamese cuisine West Indian Americans—Caribbean cuisine, Jamaican cuisine, Trinidad and Tobago cuisine, Barbadian cuisine, Bahamian cuisine Italian, Mexican and Chinese (Cantonese) cuisines have indeed joined the mainstream. These three cuisines have become so ingrained in the American culture that they are no longer foreign to the American palate. According to the study, more than nine out of 10 consumers are familiar with and have tried these foods, and about half report eating them frequently. The research also indicates that Italian, Mexican and Chinese (Cantonese) have become so adapted to such an extent that "authenticity" is no longer a concern to customers. Contributions from these ethnic foods have become as common as traditional "American" fares such as hot dogs, hamburgers, beef steak, which are derived from German cuisine, (chicken-fried steak, for example, is a variation on German schnitzel), cherry pie, Coca-Cola, milkshakes, fried chicken (Fried chicken is of English, Scottish, and African influence), Pepsi, Dr Pepper and so on. Nowadays, Americans also have a ubiquitous consumption of foods like pizza and pasta, tacos and burritos to "General Tso's chicken" and fortune cookies. Fascination with these and other ethnic foods may also vary with region. Other popular foods Fast food The United States has a large fast food industry. Major American fast food chains include McDonald's, Burger King, Wendy's, Domino's, Pizza Hut, KFC, Popeyes, Subway, Taco Bell, Arby's, Starbucks, Dunkin' Donuts, White Castle, In-N-Out Burger, Sonic Drive-In, Chick-fil-A, Church's Chicken, and Raising Cane's, among numerous other multinational, national, regional, and local chains. Traditional American fast food items are hamburgers, french fries, breaded chicken, and pizza, though several chains also offer items from different cuisines modified for American palates, such as tacos, pasta, and stir-fry. Many American fast food chains have expanded abroad to other countries, typically offering standard American fare alongside items adapted to appeal to regional tastes within their markets. Desserts A classic American dessert is apple pie. Some other famous American desserts are banana split, Boston cream pie, key lime pie, and bananas foster. Other famous American desserts are chocolate chip cookies, pecan pie, carrot cake, banana pudding, S'more, black and white cookies, pumpkin pie, coconut cake, funnel cake, brownies and red velvet cake. Influential figures and American cuisine on television American chefs have been influential both in the food industry and in popular culture. Some important 19th-century American chefs include Charles Ranhofer of Delmonico's Restaurant in New York, and Bob Payton, who is credited with bringing American-style pizza to the UK. Later, chefs Charles Scotto, Louis Pacquet, John Massironi were founded the American Culinary Federation in 1930, taking after similar organizations across Europe. In the 1940s, Chef James Beard hosted the first nationally televised cooking show I Love to Eat. His name is also carried by the foundation and prestigious cooking award recognizing excellence in the American cooking community. Since Beard, many chefs and cooking personalities have taken to television, and the success of the Cooking Channel and Food Network have contributed to the popularity of American cuisine. In 1946, the Culinary Institute of America was founded by Katharine Angel and Frances Roth. This would become the United States' most prestigious culinary school, where many of the most talented American chefs would study prior to successful careers. The American Culinary community has grown due to both restaurants and media, through the work of many talented chefs. Influential figures Notable American restaurant chefs include Samin Nosrat (Salt, Fat, Acid, Heat), Thomas Keller (The French Laundry), Charlie Trotter (Trotter's), Grant Achatz (Alinea), Alfred Portale (Portale), Paul Prudhomme (K-Paul's), Paul Bertolli (Oliveto), Jonathan Waxman (Barbuto), Mark Peel (Campanile), Frank Stitt (Bottega), Alice Waters (Chez Panisse), Wolfgang Puck (Spago), Patrick O'Connell (The Inn), Eric Ripert (Le Bernardin), Todd English (Olives) and Anthony Bourdain (Les Halles). Many of these chefs have received much critical acclaim, as Keller, Achatz, Ripert and O'Connell have all received three Michelin stars, the highest distinction which a restaurant can be given. Keller was given this award for The French Laundry, Achatz for Alinea, Ripert for Le Bernardin and O'Connell for The Inn at Little Washington. Celebrity chefs have also helped to expand the culinary arts into popular culture, with chefs such as David Chang (Chef's Table), Alton Brown (Iron Chef America), Emeril Lagasse (Emeril Live), Cat Cora (Iron Chef America), Erik Davidson (Phat Erik's), Michael Symon (The Chew), Bobby Flay (Beat Bobby Flay), Ina Garten (Barefoot Contessa) and Guy Fieri (Diners, Drive-ins and Dives). Many of these celebrity chefs, such as David Chang, Emeril Lagasse and Bobby Flay began their careers in restaurants before branching out into television. The shows have a wide variety of formats, including cooking competitions, such as Iron Chef, documentaries, such as Anthony Bourdain's Parts Unknown, shows that take a look into restaurants, as Chef's Table does, and shows that teach cooking. The success of food television specifically in the United States has helped American Cuisine grow around the world. Regional cuisine chefs Regional chefs are emerging as localized celebrity chefs with growing broader appeal, such as Peter Merriman (Hawaii Regional Cuisine), Roy Choi (Korean American Cuisine), Jerry Traunfeld, Alan Wong (Pacific Rim cuisine), Rick Bayless and Daniela Soto-Innes (traditional Mexican cuisine with modern interpretations), Norman Van Aken (New World Cuisine – fusion Latin, Caribbean, Asian, African and American), and Mark Miller (American Southwest cuisine). See also Cuisine of the Americas Indigenous cuisine of the Americas Native American cuisine Soul food Types American wine Regional Cuisine of California Cuisine of Minnesota Cuisine of New York City Cuisine of the Southern United States Cuisine of Atlanta Cuisine of Houston Tex-Mex cuisine Ethnic American Chinese cuisine Mexican-American cuisine Italian-American cuisine Greek-American cuisine Puerto Rican cuisine Other High on the Hog: How African American Cuisine Transformed America Cuisine of Antebellum America List of American desserts List of American breads List of American foods List of American regional and fusion cuisines List of American breakfast foods Tlingit cuisine Cuisine of the Americas Cuisine of the Pennsylvania Dutch Cuisine of the Southern United States American tea culture References Works cited . . . . Fried, Stephen. Appetite for America: How Visionary Businessman Fred Harvey Built a Railroad Hospitality Empire That Civilized the Wild West (Bantam; 2010) . . . . . . . . Veit, Helen Zoe. Modern Food, Moral Food: Self-Control, Science, and the Rise of Modern American Eating in the Early Twentieth Century (2013) Further reading External links Cultural history of the United States North American cuisine

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https://en.wikipedia.org/wiki/Ahmad%20Shah%20Massoud

Ahmad Shah Massoud

Ahmad Shah Massoud (Dari/Pashto: , ; September 2, 1953September 9, 2001) was an Afghan politician and military commander. He was a powerful guerrilla commander during the resistance against the Soviet occupation between 1979 and 1989. In the 1990s, he led the government's military wing against rival militias; after the Taliban takeover, he was the leading opposition commander against their regime until his assassination in 2001. Massoud came from an ethnic Tajik, Sunni Muslim background in the Panjshir Valley of Northern Afghanistan. He began studying engineering at Polytechnical University of Kabul in the 1970s, where he became involved with religious anti-communist movements around Burhanuddin Rabbani, a leading Islamist. He participated in a failed uprising against Mohammed Daoud Khan's government. He later joined Rabbani's Jamiat-e Islami party. During the Soviet–Afghan War, his role as a powerful insurgent leader of the Afghan mujahideen earned him the nickname "Lion of Panjshir" () among his followers. Supported by Britain's MI6 and to a lesser extent by the U.S. Central Intelligence Agency (CIA), he successfully resisted the Soviets from taking the Panjshir Valley. In 1992, he signed the Peshawar Accord, a peace and power-sharing agreement, in the post-communist Islamic State of Afghanistan. He was appointed the Minister of Defense as well as the government's main military commander. His militia fought to defend Kabul against militias led by Gulbuddin Hekmatyar and other warlords who were bombing the city, as well as later against the Taliban, who laid siege to the capital in January 1995 after the city had seen fierce fighting with at least 60,000 civilians killed. Following the rise of the Taliban in 1996, Massoud, who rejected the Taliban's fundamentalist interpretation of Islam, returned to armed opposition until he was forced to flee to Kulob, Tajikistan, strategically destroying the Salang Tunnel on his way north. He became the military and political leader of the United Islamic Front for the Salvation of Afghanistan or Northern Alliance, which by 2000 controlled only between 5 and 10 percent of the country. In 2001 he visited Europe and urged European Parliament leaders to pressure Pakistan on its support for the Taliban. He also asked for humanitarian aid to combat the Afghan people's gruesome conditions under the Taliban. On September 9, 2001, Massoud was injured in a suicide bombing by two al-Qaeda assassins, ordered personally by the al-Qaeda leader Osama bin Laden himself; he lost his life while en route to a hospital across the border in Tajikistan. Two days later, the September 11 attacks occurred in the United States, which ultimately led to the North Atlantic Treaty Organization invading Afghanistan and allying with Massoud's forces. The Northern Alliance eventually won the two-month-long war in December 2001, removing the Taliban from power. Massoud has been described as one of the greatest guerrilla leaders of the 20th century and has been compared to Josip Broz Tito, Ho Chi Minh and Che Guevara. Massoud was posthumously named "National Hero" by the order of President Hamid Karzai after the Taliban were ousted from power. The date of Massoud's death, September 9, was observed as a national holiday known as "Massoud Day" until the Taliban takeover in August 2021. His followers call him Amer Sāhib-e Shahīd (), which translates to "(our) martyred commander". He has been posthumously honored by a plaque in France in 2021, and in the same year was awarded with the highest honor of Tajikistan. Early life Ahmad Shah Massoud was born in 1953 in the small village of Jangalak, Bazarak in the Panjshir Valley (now administered as part of the Panjshir Province), to a well-to-do family native to the Panjshir Valley. Massoud's name at birth was 'Ahmad Shah' after King Ahamad Shah Durrani, founder of the modern, unified state of Afghanistan, later taking the name 'Massoud' as a nom de guerre in 1974 when he joined the resistance movement against the forces of Daoud Khan. Massoud's father, Dost Mohammad, was a colonel in the Royal Afghan Army; his mother, Bibi Khorshaid has been described as a "modern-minded" woman who taught herself to read and write determined to educate her daughters no less than her sons. Moving along with his father's postings, the adolescent Massoud attended primary school in Afghanistan's western city of Herat before his father was dispatched to Kabul. There, Massoud was sent to the renowned Franco-Afghan Lycée Esteqlal (lit. Independence High School) where he attained his proficiency in French. Massoud's experience at Lycée would be formative and, as he would later remark, was the happiest period of his life. At Lycée his classes were taught by French and Afghan tutors educated in France and the students donned Western jackets, neckties, trousers, skirts, scarves, and stockings. Although his knowledge of the French language would earn him greater affinity among French journalists and politicians, later conservative Islamist opponents such as Gulbuddin Hekmatyar and the Taliban would derogatorily dub him "The Frenchmen" or "The Parisian" suggestive of his sympathies to Western culture. While at the Lycée, Massoud was described as an intellectually-gifted student, hard-working, religiously devout, and mature for his age with a particular interest in ethics, politics, universal justice. Friends and family recall an instance where Massoud, returning from school, came to the defense of a younger boy leaving the three bullies knocked-out on the pavement. More formatively, Massoud followed closely reports of the 1967 Six-Day War and the defiant statements of Arab leaders like Egyptian President Gamal Abdel Nasser. He later told researcher Peter DeNeufville that, at fourteen, the war left him determined to be a soldier and gave him a new regard for Pan-Islamism after hearing the stories told by Jordanian, Egyptian, and Syrian soldiers defending their homelands. Massoud refused repeated suggestions to apply for a scholarship to study in France expressing his desire to remain in Afghanistan and apply to the nation's military academy in Kabul. By protest of his father and eldest brother, Massoud enrolled at Kabul Polytechnic Institute, then Kabul University's newest and most prestigious addition founded, financed, and operated by the Soviet Union. Massoud studied engineering and architecture but never attempted to learn Russian. There he found interest in politics, political Islam, and anti-Communism which often put him and his pious peers at odds with communist-inspired students. 1975 rebellion in Panjshir In 1973, former Prime Minister Mohammed Daoud Khan was brought to power in a coup d'état backed by the People's Democratic Party of Afghanistan, and the Republic of Afghanistan was established. These developments gave rise to an Islamist movement opposed to the increasing communist and Soviet influence over Afghanistan. During that time, while studying at Kabul University, Massoud became involved with the Muslim Youth (Sazman-i Jawanan-i Musulman), the student branch of the Jamiat-e Islami (Islamic Society), whose chairman then was the professor Burhanuddin Rabbani. Kabul University was a center for political debate and activism during that time. Infuriated by the arrogance of his communist peers and Russian professors, a physical altercation between Massoud and his Russian professor led Massoud to walk out of the university, and shortly after, Kabul. Two days later, Massoud and a number of fellow militant students traveled to Pakistan where, goaded by another trainee of the Pakistani Inter-Services Intelligence (ISI), Gulbaddin Hekmatyar, Massoud agreed to take part in a coup against Daoud with his forces rising up in the Panjshir and Hekmatyar's elsewhere. In July 1975, Massoud, with help from the Pakistani intelligence, led the first rebellion of Panjshir residents against the government of Daoud Khan. While the uprising in the Panjshir began saw initial success, even taking the military garrison in Rokha, the promised support from Kabul never came and the rebellion was suppressed by Daoud Khan's forces sending Massoud back into Pakistan (after a day hiding in Jangalak) where he would attend a secret, paramilitary ISI training center in Cherat. Dissatisfied, Massoud left the center and returned to Peshawar where he committed himself to personal military studies. Massoud read Mao Tse-tung's writings on the Long March, of Che Guevara's career, the memoirs of General de Gualle, General Võ Nguyên Giáp, Sun Tzu's Art of War, and an unnamed handbook on counterterrorism by an American general which Massoud called "the most instructive of all". After this failure, a "profound and long-lasting schism" within the Islamist movement began to emerge. The Islamic Society split between supporters of the more moderate forces around Massoud and Rabbani, who led the Jamiat-i Islami, and more radical Islamist elements surrounding Gulbuddin Hekmatyar, who founded the Hezb-i Islami. The conflict reached such a point that Hekmatyar reportedly tried to kill Massoud, then 22 years old. Resistance against communism Resistance against the PDPA (1978) The government of Mohammed Daoud Khan tried to scale back the communist People's Democratic Party of Afghanistan's influence, dismissing PDPA members from their government posts, appointing conservatives to replace them, and finally dissolved the PDPA, with the arrests of senior party members. On April 27, 1978, the PDPA and military units loyal to it killed Daoud Khan, his immediate family, and bodyguards in a violent coup, and seized control of the capital Kabul declaring the new Democratic Republic of Afghanistan (DRA). The new communist government, led by a revolutionary council, did not enjoy the support of the masses. It implemented a doctrine hostile to political dissent, whether inside or outside the party. The PDPA started reforms along Marxist–Leninist and Soviet lines. The reforms and the PDPA's affinity to the Soviet Union were met with strong resistance by the population, especially as the government attempted to enforce its Marxist policies by arresting or executing those who resisted. Between 50,000 and 100,000 people were estimated to have been arrested and killed by communist troops in the countryside alone. Due to the repression, large parts of the country, especially the rural areas, organized into open revolt against the PDPA government. By spring 1979, unrest had reached 24 out of 28 Afghan provinces, including major urban areas. Over half of the Afghan army either deserted or joined the insurrection. With religious elders declaring a jihad against the government, in May 1979 Massoud prepared in Peshawar to oppose the new communist government in Panjshir. Along with twenty-four of his friends, Massoud took a bus to Bajaur and, with arms-smuggling Pashtun tribesmen, marched on foot into the Panjshir Valley. Massoud's group seized control over a number of government outposts in the Valley, entered the Shomali Plain to capture Gulbahar, and cut off the Salang Highway, the main supply route between Kabul and the Soviet border raising alarm in both Kabul and Moscow which brought upon Massoud and his group a government counterattack. Believing that an uprising against the Soviet-backed communists would be supported by the people, Massoud, on July 6, 1979, started an insurrection in the Panjshir, which initially failed. Massoud decided to avoid conventional confrontation with the larger government forces and to wage a guerrilla war. He subsequently took full control of Panjshir, pushing out Afghan communist troops. Oliver Roy writes that in the following period, Massoud's "personal prestige and the efficiency of his military organization persuaded many local commanders to come and learn from him." Resistance against the Soviet Union (1979–1989) Following the 1979 Soviet invasion and occupation of Afghanistan, Massoud devised a strategic plan for expelling the invaders and overthrowing the communist regime. The first task was to establish a popularly based resistance force that had the loyalty of the people. The second phase was "active defense" of the Panjshir stronghold, while carrying out asymmetric warfare. In the third phase, the "strategic offensive", Massoud's forces would gain control of large parts of Northern Afghanistan. The fourth phase was the "general application" of Massoud's principles to the whole country, and the defeat of the Afghan communist government. Massoud's mujahideen attacked the occupying Soviet forces, ambushing Soviet and Afghan communist convoys travelling through the Salang Pass, and causing fuel shortages in Kabul. The Soviets mounted a series of offensives against the Panjshir. Between 1980 and 1985, these offensives were conducted twice a year. Despite engaging more men and hardware on each occasion, the Soviets were unable to defeat Massoud's forces. In 1982, the Soviets began deploying major combat units in the Panjshir, numbering up to 30,000 men. Massoud pulled his troops back into subsidiary valleys, where they occupied fortified positions. When the Soviet columns advanced onto these positions, they fell into ambushes. When the Soviets withdrew, Afghan army garrisons took over their positions. Massoud and his mujahideen forces attacked and recaptured them one by one. In 1983, the Soviets offered Massoud a temporary truce, which he accepted in order to rebuild his own forces and give the civilian population a break from Soviet attacks. He put the respite to good use. In this time he created the Shura-e Nazar (Supervisory Council), which subsequently united 130 commanders from 12 Afghan provinces in their fight against the Soviet army. This council existed outside the Peshawar parties, which were prone to internecine rivalry and bickering, and served to smooth out differences between resistance groups, due to political and ethnic divisions. It was the predecessor of what could have become a unified Islamic Afghan army. Relations with the party headquarters in Peshawar were often strained, as Rabbani insisted on giving Massoud no more weapons and supplies than to other Jamiat commanders, even those who did little fighting. To compensate for this deficiency, Massoud relied on revenues drawn from exports of emeralds and lapis lazuli, that are traditionally exploited in Northern Afghanistan. Regarding infighting among different mujahideen factions, following a Soviet truce, Massoud said in an interview: Britain's MI6 having activated long-established networks of contacts in Pakistan were able to support Massoud, and soon became their key ally. MI6 sent an annual mission of two of their officers as well as military instructors to Massoud and his fighters. They also gave supplies to Massoud which included sniper rifles with silencers and mortars. As well as training Massoud's junior commanders, MI6 team's most important contribution was help with organisation and communication via radio equipment which was highly useful for Massoud to coordinate his forces and be warned of any impending Soviet attacks. The United States however provided Massoud with comparatively less support than other factions. Part of the reason was that it permitted its funding and arms distribution to be administered by Pakistan, which favored the rival mujahideen leader Gulbuddin Hekmatyar. In an interview, Massoud said, "We thought the CIA knew everything. But they didn't. They supported some bad people [meaning Hekmatyar]." Primary advocates for supporting Massoud were the US State Department's Edmund McWilliams and Peter Tomsen, who were on the ground in Afghanistan and Pakistan. Others included two Heritage Foundation foreign policy analysts, Michael Johns and James A. Phillips, both of whom championed Massoud as the Afghan resistance leader most worthy of U.S. support under the Reagan Doctrine. Thousands of foreign Islamic volunteers entered Afghanistan to fight with the mujahideen against the Soviet troops. To organize support for the mujahideen, Massoud established an administrative system that enforced law and order (nazm) in areas under his control. The Panjshir was divided into 22 bases (qarargah) governed by a military commander and a civilian administrator, and each had a judge, a prosecutor and a public defender. Massoud's policies were implemented by different committees: an economic committee was charged with funding the war effort. The health committee provided health services, assisted by volunteers from foreign humanitarian non-governmental organizations, such as Aide médicale internationale. An education committee was charged with the training of the military and administrative cadre. A culture committee and a judiciary committee were also created. This expansion prompted Babrak Karmal to demand that the Red Army resume their offensives, in order to crush the Panjshir groups. However, Massoud had received warning of the attack through Britain's GCHQ intelligence and he evacuated all 130,000 inhabitants from the valley into the Hindukush mountains, leaving the Soviet bombings to fall on empty ground and the Soviet battalions to face the mountains. With the defeat of the Soviet-Afghan attacks, Massoud carried out the next phase of his strategic plan, expanding the resistance movement and liberating the northern provinces of Afghanistan. In August 1986, he captured Farkhar in Takhar Province. In November 1986, his forces overran the headquarters of the government's 20th division at Nahrin in Baghlan Province, scoring an important victory for the resistance. This expansion was also carried out through diplomatic means, as more mujahideen commanders were persuaded to adopt the Panjshir military system. Despite almost constant attacks by the Red Army and the Afghan army, Massoud increased his military strength. Starting in 1980 with a force of less than 1,000 ill-equipped guerrillas, the Panjshir valley mujahideen grew to a 5,000-strong force by 1984. After expanding his influence outside the valley, Massoud increased his resistance forces to 13,000 fighters by 1989. The junior commanders were trained by Britain's SAS as well as private military contractors, some being sent as far as Oman and even SAS training grounds in the Scottish Highlands. These forces were divided into different types of units: the locals (mahalli) were tasked with static defense of villages and fortified positions. The best of the mahalli were formed into units called grup-i zarbati (shock troops), semi-mobile groups that acted as reserve forces for the defense of several strongholds. A different type of unit was the mobile group (grup-i-mutaharek), a lightly equipped commando-like formation numbering 33 men, whose mission was to carry out hit-and-run attacks outside the Panjshir, sometimes as far as 100 km from their base. These men were professional soldiers, well-paid and trained, and, from 1983 on, they provided an effective strike force against government outposts. Uniquely among the mujahideen, these groups wore uniforms, and their use of the pakul made this headwear emblematic of the Afghan resistance. Massoud's military organization was an effective compromise between the traditional Afghan method of warfare and the modern principles of guerrilla warfare which he had learned from the works of Mao Zedong and Che Guevara. His forces were considered the most effective of all the various Afghan resistance movements. The Soviet army and the Afghan communist army were mainly defeated by Massoud and his mujahideen in numerous small engagements between 1984 and 1988. After describing the Soviet Union's military engagement in Afghanistan as "a bleeding wound" in 1986, Soviet General Secretary Mikhail Gorbachev began a withdrawal of Soviet troops from the nation in May 1988. On February 15, 1989, in what was depicted as an improbable victory for the mujahideen, the last Soviet soldier left the nation. Fall of the Afghan communist regime (1992) After the departure of Soviet troops in 1989, the People's Democratic Party of Afghanistan regime, then headed by Mohammad Najibullah, held its own against the mujahideen. Backed by a massive influx of weapons from the Soviet Union, the Afghan armed forces reached a level of performance they had never reached under direct Soviet tutelage. They maintained control over all of Afghanistan's major cities. During late 1990, helped by hundreds of mujahideen forces, Massoud targeted the Tajik Supreme Soviet, trying to oust communism from the neighboring Tajikistan to further destabilize the dying Soviet Union, which would also impact the Afghan government. At that time, as per Asad Durrani, the director-general of the ISI during this period, Massoud's base camp was in Garam Chashma, in Pakistan. By 1992, after the collapse of the Soviet Union, the Afghan regime eventually began to crumble. Food and fuel shortages undermined the capacities of the government's army, and a resurgence of factionalism split the regime between Khalq and Parcham supporters. A few days after Najibullah had lost control of the nation, his army commanders and governors arranged to turn over authority to resistance commanders and local warlords throughout the country. Joint councils (shuras) were immediately established for local government, in which civil and military officials of the former government were usually included. In many cases, prior arrangements for transferring regional and local authority had been made between foes. Collusions between military leaders quickly brought down the Kabul government. In mid-January 1992, within three weeks of the demise of the Soviet Union, Massoud was aware of conflict within the government's northern command. General Abdul Momim, in charge of the Hairatan border crossing at the northern end of Kabul's supply highway, and other non-Pashtun generals based in Mazar-i-Sharif, feared removal by Najibullah and replacement by Pashtun officers. When the generals rebelled, Abdul Rashid Dostum, who held general rank as head of the Jowzjani militia, also based in Mazar-i-Sharif, took over. He and Massoud reached a political agreement, together with another major militia leader, Sayyed Mansour, of the Ismaili community based in Baghlan Province. These northern allies consolidated their position in Mazar-i-Sharif on March 21. Their coalition covered nine provinces in the north and northeast. As turmoil developed within the government in Kabul, no government force stood between the northern allies and the major air force base at Bagram, some seventy kilometers north of Kabul. By mid-April 1992, the Afghan air force command at Bagram had capitulated to Massoud. On March 18, 1992, Najibullah decided to resign. On April 17, as his government fell, he tried to escape but was stopped at Kabul Airport by Dostum's forces. He took refuge at the United Nations mission, where he remained unharmed until 1996, while Massoud controlled the area surrounding the mission. Senior communist generals and officials of the Najibullah administration acted as a transitional authority to transfer power to Ahmad Shah Massoud's alliance. The Kabul interim authority invited Massoud to enter Kabul as the new Head of State, but he held back. Massoud ordered his forces, positioned to the north of Kabul, not to enter the capital until a political solution was in place. He called on all the senior Afghan party leaders, many then based in exile in Peshawar, to work out a political settlement acceptable to all sides and parties. War in Afghanistan (1992–2001) War in Kabul and other parts of the country (1992–1996) Peace and power-sharing agreement (1992) With United Nations support, most Afghan political parties decided to appoint a legitimate national government to succeed communist rule, through an elite settlement. While the external Afghan party leaders were residing in Peshawar, the military situation around Kabul involving the internal commanders was tense. A 1991 UN peace process brought about some negotiations, but the attempted elite settlement did not develop. In April 1992, resistance leaders in Peshawar tried to negotiate a settlement. Massoud supported the Peshawar process of establishing a broad coalition government inclusive of all resistance parties, but Hekmatyar sought to become the sole ruler of Afghanistan, stating, "In our country coalition government is impossible because, this way or another, it is going to be weak and incapable of stabilizing the situation in Afghanistan." Massoud wrote: All the parties had participated in the war, in jihad in Afghanistan, so they had to have their share in the government, and in the formation of the government. Afghanistan is made up of different nationalities. We were worried about a national conflict between different tribes and different nationalities. In order to give everybody their own rights and also to avoid bloodshed in Kabul, we left the word to the parties so they should decide about the country as a whole. We talked about it for a temporary stage and then after that the ground should be prepared for a general election. A recorded radio communication between the two leaders showed the divide as Massoud asked Hekmatyar: The Kabul regime is ready to surrender, so instead of the fighting we should gather. ... The leaders are meeting in Peshawar. ... The troops should not enter Kabul, they should enter later on as part of the government. Hekmatyar's response: We will march into Kabul with our naked sword. No one can stop us. ... Why should we meet the leaders?" Massoud answered: "It seems to me that you don't want to join the leaders in Peshawar nor stop your threat, and you are planning to enter Kabul ... in that case I must defend the people. At that point Osama bin Laden, trying to mediate, urged Hekmatyar to "go back with your brothers" and to accept a compromise. Bin Laden reportedly "hated Ahmad Shah Massoud". Bin Laden was involved in ideological and personal disputes with Massoud and had sided with Gulbuddin Hekmatyar against Massoud in the inner-Afghan conflict since the late 1980s. But Hekmatyar refused to accept a compromise, confident that he would be able to gain sole power in Afghanistan. On April 24, 1992, the leaders in Peshawar agreed on and signed the Peshawar Accord, establishing the post-communist Islamic State of Afghanistan – which was a stillborn 'state' with a paralyzed 'government' right from its inception, until its final succumbing in September 1996. The creation of the Islamic State was welcomed though by the General Assembly of the United Nations and the Islamic State of Afghanistan was recognized as the legitimate entity representing Afghanistan until June 2002, when its successor, the Islamic Republic of Afghanistan, was established under the interim government of Hamid Karzai. Under the 1992 Peshawar Accord, the Defense Ministry was given to Massoud while the Prime Ministership was given to Hekmatyar. Hekmatyar refused to sign. With the exception of Hekmatyar's Hezb-e Islami, all of the other Peshawar resistance parties were unified under this peace and power-sharing accord in April 1992. Escalating war over Kabul (1992) Although repeatedly offered the position of prime minister, Gulbuddin Hekmatyar refused to recognize the peace and power-sharing agreement. His Hezb-e Islami militia initiated a massive bombardment campaign against the Islamic State and the capital city Kabul. Gulbuddin Hekmatyar received operational, financial and military support from neighboring Pakistan. The Director of the Centre for Arab and Islamic Studies at the Australian National University, Amin Saikal, writes in Modern Afghanistan: A History of Struggle and Survival that without Pakistan's support, Hekmatyar "would not have been able to target and destroy half of Kabul." Saikal states that Pakistan wanted to install a favorable regime under Hekmatyar in Kabul so that it could use Afghan territory for access to Central Asia. Hekmatyar's rocket bombardments and the parallel escalation of violent conflict between two militias, Ittihad and Wahdat, which had entered some suburbs of Kabul, led to a breakdown in law and order. Shia Iran and Sunni Wahabbi Saudi Arabia, as competitors for regional hegemony, encouraged conflict between the Ittihad and Wahdat factions. On the one side was the Shia Hazara Hezb-i Wahdat of Abdul Ali Mazari and on the other side, the Sunni Pashtun Ittihad-i Islami of Abdul Rasul Sayyaf. According to Human Rights Watch, Iran was strongly supporting the Hezb-i Wahdat forces, with Iranian intelligence officials providing direct orders, while Saudi Arabia supported Sayyaf and his Ittihad-i Islami faction to maximize Wahhabi influence. Kabul descended into lawlessness and chaos, as described in reports by Human Rights Watch and the Afghanistan Justice Project. Massoud's Jamiat commanders, the interim government, and the International Committee of the Red Cross (ICRC) repeatedly tried to negotiate ceasefires, which broke down in only a few days. Another militia, the Junbish-i Milli of former communist general Abdul Rashid Dostum, was backed by Uzbekistan. Uzbek president Islam Karimov was keen to see Dostum controlling as much of Afghanistan as possible, especially in the north. Dostum repeatedly changed allegiances. The Afghanistan Justice Project (AJP) says, that "while [Hekmatyar's anti-government] Hizb-i Islami is frequently named as foremost among the factions responsible for the deaths and destruction in the bombardment of Kabul, it was not the only perpetrator of these violations." According to the AJP, "the scale of the bombardment and kinds of weapons used represented disproportionate use of force" in a capital city with primarily residential areas by all the factions involved – including the government forces. Crimes were committed by individuals within the different armed factions. Gulbuddin Hekmatyar released 10,000 dangerous criminals from the main prisons into the streets of Kabul to destabilize the city and cut off Kabul from water, food and energy supplies. The Iran-controlled Wahdat of Abdul Ali Mazari, as well as the Ittihad of Abdul Rasul Sayyaf supported by Saudi Arabia, targeted civilians of the 'opposite side' in systematic atrocities. Abdul Rashid Dostum allowed crimes as a perceived payment for his troops. Afshar operation (February 1993) "The major criticism of Massoud's human rights record" is the escalation of the Afshar military operation in 1993. A report by the Afghanistan Justice Project describes Massoud as failing to prevent atrocities carried out by his forces and those of their factional ally, Ittihad-i Islami, against civilians on taking the suburb of Afshar during a military operation against an anti-state militia allied to Gulbuddin Hekmatyar. They shelled residential areas in the capital city in February 1993. Critics said that Massoud should have foreseen these problems. A meeting convened by Massoud on the next day ordered a halt to killing and looting, but it failed to stop abuses. Human Rights Watch, in a report based largely on the material collected by the Afghanistan Justice Project, concurs that Massoud's Jamiat forces bear a share of the responsibility for human rights abuses throughout the war, including the indiscriminate targeting of civilians in Afshar, and that Massoud was personally implicated in some of these abuses. Roy Gutman has argued that the witness reports about Afshar cited in the AJP report implicated only the Ittihad forces, and that these had not been under Massoud's direct command. Anthony Davis, who studied and observed Massoud's forces from 1981 to 2001, reported that during the observed period, there was "no pattern of repeated killings of enemy civilians or military prisoners" by Massoud's forces. Edward Girardet, who covered Afghanistan for over three decades, was also in Kabul during the war. He states that while Massoud was able to control most of his commanders well during the anti-Soviet and anti-Taliban resistance, he was not able to control every commander in Kabul. According to this and similar testimonies, this was due to a breakdown of law and order in Kabul and a war on multiple fronts, which they say, Massoud personally had done all in his power to prevent: Further war over Kabul (March–December 1993) In 1993, Massoud created the Cooperative Mohammad Ghazali Culture Foundation (Bonyad-e Farhangi wa Ta'wani Mohammad-e Ghazali) to further humanitarian assistance and politically independent Afghan culture. The Ghazali Foundation provided free medical services during some days of the week to residents of Kabul who were unable to pay for medical treatment. The Ghazali Foundation's department for distribution of auxiliary goods was the first partner of the Red Cross. The Ghazali Foundation's department of family consultation was a free advisory board, which was accessible seven days a week for the indigent. Although Massoud was responsible for the financing of the foundation, he did not interfere with its cultural work. A council led the foundation and a jury, consisting of impartial university lecturers, decided on the works of artists. The Ghazali foundation enabled Afghan artists to exhibit their works at different places in Kabul, and numerous artists and authors were honoured for their works; some of them neither proponents of Massoud nor the Islamic State government. In March 1993, Massoud resigned his government position in exchange for peace, as requested by Hekmatyar, who considered him as a personal rival. According to the Islamabad Accord, Burhanuddin Rabbani, belonging to the same party as Massoud, remained president, while Gulbuddin Hekmatyar took the long-offered position of prime minister. Two days after the Islamabad Accord was put into effect, however, Hekmatyar's allies of Hezb-e Wahdat renewed rocket attacks in Kabul. Both the Wahhabi Pashtun Ittehad-i Islami of Abdul Rasul Sayyaf backed by Saudi Arabia and the Shia Hazara Hezb-e Wahdat supported by Iran remained involved in heavy fighting against each other. Hekmatyar was afraid to enter Kabul proper, and chaired only one cabinet meeting. The author Roy Gutman of the United States Institute of Peace wrote in How We Missed the Story: Osama bin Laden, the Taliban, and the Hijacking of Afghanistan: Hekmatyar had become prime minister ... But after chairing one cabinet meeting, Hekmatyar never returned to the capital, fearing, perhaps, a lynching by Kabulis infuriated over his role in destroying their city. Even his close aides were embarrassed. Hekmatyar spokesman Qutbuddin Helal was still setting up shop in the prime minister's palace when the city came under Hezb[-i Islami] rocket fire late that month. "We are here in Kabul and he is rocketing us. Now we have to leave. We can't do anything," he told Massoud aides. Hekmatyar, who was generally opposed to coalition government and struggled for undisputed power, had conflicts with other parties over the selection of cabinet members. His forces started major attacks against Kabul for one month. The President, Burhanuddin Rabbani, was attacked when he attempted to meet Hekmatyar. Massoud resumed his responsibilities as minister of defense. In May 1993, a new effort was made to reinstate the Islamabad Accord. In August, Massoud reached out to Hekmatyar in an attempt to broaden the government. By the end of 1993, however, Hekmatyar and the former communist general and militia leader, Abdul Rashid Dostum, were involved in secret negotiations encouraged by Pakistan's secret Inter-Services Intelligence, Iran's intelligence service, and Uzbekistan's Karimov administration. They planned a coup to oust the Rabbani administration and to attack Massoud in his northern areas. War in Kabul, Taliban arise in the south (1994) In January 1994, Hekmatyar and Dostum mounted a bombardment campaign against the capital and attacked Massoud's core areas in the northeast. Amin Saikal writes, Hekmatyar had the following objectives in all his operations: The first was to make sure that Rabbani and Massoud were not allowed to consolidate power, build a credible administration, or expand their territorial control, so that the country would remain divided into small fiefdoms, run by various Muajhideen leaders and local warlords or a council of such elements, with only some of them allied to Kabul. The second was to ensure the Rabbani government acquired no capacity to dispense patronage, and to dissuade the Kabul population from giving more than limited support to the government. The third was to make Kabul an unsafe city for representatives of the international community and to prevent the Rabbani government from attracting the international support needed to begin the post-war reconstruction of Afghanistan and generate a level of economic activity which would enhance its credibility and popularity. By mid-1994, Hekmatyar and Dostum were on the defensive in Kabul against Islamic State forces led by Massoud. Southern Afghanistan had been neither under the control of foreign-backed militias nor of the government in Kabul, but was ruled by local Pashtun leaders, such as Gul Agha Sherzai, and their militias. In 1994, the Taliban (a movement originating from Jamiat Ulema-e-Islam-run religious schools for Afghan refugees in Pakistan) also developed in Afghanistan as a politico-religious force, reportedly in opposition to the tyranny of the local governor. When the Taliban took control of Kandahar in 1994, they forced the surrender of dozens of local Pashtun leaders who had presided over a situation of complete lawlessness and atrocities. In 1994, the Taliban took power in several provinces in southern and central Afghanistan. Taliban siege of Kabul (1995–1996) Hizb-i Islami had bombarded Kabul from January 1994 until February 1995 when the Taliban expelled Hizb from its Charasiab headquarters, after which the Taliban relaunched the bombardment of Kabul and started to besiege the town. By early 1995, Massoud initiated a nationwide political process with the goal of national consolidation and democratic elections. He arranged a conference in three parts uniting political and cultural personalities, governors, commanders, clergymen and representatives, in order to reach a lasting agreement. Massoud's favourite for candidacy to the presidency was Dr. Mohammad Yusuf, the first democratic prime minister under Zahir Shah, the former king. In the first meeting representatives from 15 different Afghan provinces met, in the second meeting there were already 25 provinces participating. Massoud also invited the Taliban to join the peace process wanting them to be a partner in providing stability to Afghanistan during such a process. But the Taliban, which had emerged over the course of 1994 in southern Afghanistan, were already at the doors of the capital city. Against the advice of his security personnel, Massoud went to talk to some Taliban leaders in Maidan Shar, Taliban territory. The Taliban declined to join the peace process leading towards general elections. When Massoud returned to Kabul unharmed, the Taliban leader who had received him as his guest paid with his life: he was killed by other senior Taliban for failing to assassinate Massoud while the possibility had presented itself. The Taliban, placing Kabul under a two-year siege and bombardment campaign from early 1995 onwards, in later years committed massacres against civilians, compared by United Nations observers to those that happened during the War in Bosnia. Neighboring Pakistan exerted strong influence over the Taliban. A publication with the George Washington University describes: "Initially, the Pakistanis supported ... Gulbuddin Hekmatyar ... When Hekmatyar failed to deliver for Pakistan, the administration began to support a new movement of religious students known as the Taliban." Many analysts like Amin Saikal describe the Taliban as developing into a proxy force for Pakistan's regional interests. The Taliban started shelling Kabul in early 1995 but were defeated by forces of the Islamic State government under Ahmad Shah Massoud. Amnesty International, referring to the Taliban offensive, wrote in a 1995 report: The Taliban's early victories in 1994 were followed by a series of defeats that resulted in heavy losses. The Taliban's first major offensive against the important western city of Herat, under the rule of Islamic state ally Ismail Khan, in February 1995 was defeated when Massoud airlifted 2,000 of his own core forces from Kabul to help defend Herat. Ahmed Rashid writes: "The Taliban had now been decisively pushed back on two fronts by the government and their political and military leadership was in disarray. Their image as potential peacemakers was badly dented, for in the eyes of many Afghans they had become nothing more than just another warlord party." International observers already speculated that the Taliban as a country-wide organization might have "run its course". Mullah Omar, however, consolidated his control of the Taliban and with foreign help rebuilt and re-equipped his forces. Pakistan increased its support to the Taliban. Its military advisers oversaw the restructuring of Taliban forces. The country provided armored pick-up trucks and other military equipment. Saudi Arabia provided the funding. Furthermore, there was a massive influx of 25,000 new Taliban fighters, many of them recruited in Pakistan. This enabled the Taliban to capture Herat to the west of Kabul in a surprise attack against the forces of Ismail Khan in September 1995. A nearly one-year siege and bombardment campaign against Kabul, however, was again defeated by Massoud's forces. Massoud and Rabbani meanwhile kept working on an internal Afghan peace process – successfully. By February 1996, all of Afghanistan's armed factions – except for the Taliban – had agreed to take part in the peace process and to set up a peace council to elect a new interim president. Many Pashtun areas under Taliban control had representatives also advocating for a peace agreement with the Islamic State government. But Taliban leader Mullah Omar and the Kandaharis surrounding him wanted to expand the war. At that point the Taliban leadership and their foreign supporters decided they needed to act quickly before the government could consolidate the new understanding between the parties. The Taliban moved against Jalalabad, under the control of the Pashtun Jalalabad Shura, to the east of Kabul. Part of the Jalalabad Shura was bribed with millions of dollars by the Taliban's foreign sponsors, especially Saudi Arabia, to vacate their positions. The Taliban's battle for Jalalabad was directed by Pakistani military advisers. Hundreds of Taliban crossed the Afghan-Pakistani border moving on Jalalabad from Pakistan and thereby suddenly placed to the east of Kabul. This left the capital city Kabul "wide open" to many sides as Ismail Khan had been defeated to the west, Gulbuddin Hekmatyar had vacated his positions to the south and the fall and surrender of Jalalabad had suddenly opened a new front to the east. At that point Massoud decided to conduct a strategic retreat through a northern corridor, according to Ahmed Rashid, "knowing he could not defend [Kabul] from attacks coming from all four points of the compass. Nor did he want to lose the support of Kabul's population by fighting for the city and causing more bloodshed." On September 26, 1996, as the Taliban with military support by Pakistan and financial support by Saudi Arabia prepared for another major offensive, Massoud ordered a full retreat from Kabul. The Taliban marched into Kabul on September 27, 1996, and established the Islamic Emirate of Afghanistan. Massoud and his troops retreated to the northeast of Afghanistan which became the base for the still internationally recognized Islamic State of Afghanistan. Resistance against the Taliban (1996–2001) United Front against the Taliban Ahmad Shah Massoud created the United Front (Northern Alliance) against the Taliban advance. The United Front included forces and leaders from different political backgrounds as well as from all ethnicities of Afghanistan. From the Taliban conquest in 1996 until November 2001, the United Front controlled territory in which roughly 30% of Afghanistan's population was living, in provinces such as Badakhshan, Kapisa, Takhar and parts of Parwan, Kunar, Nuristan, Laghman, Samangan, Kunduz, Ghōr and Bamyan. Meanwhile, the Taliban imposed their repressive regime in the parts of Afghanistan under their control. Hundreds of thousands of people fled to Northern Alliance territory, Pakistan and Iran. Massoud's soldiers held some 1,200 Taliban prisoners in the Panjshir Valley, 122 of them foreign Muslims who had come to Afghanistan to fight a jihad. In 1998, after the defeat of Abdul Rashid Dostum's faction in Mazar-i-Sharif, Ahmad Shah Massoud remained the only main leader of the United Front in Afghanistan and the only leader who was able to defend vast parts of his area against the Taliban. Most major leaders including the Islamic State's President Burhanuddin Rabbani, Abdul Rashid Dostum, and others, were living in exile. During this time, commentators remarked that "The only thing standing in the way of future Taliban massacres is Ahmad Shah Massoud." Massoud stated that the Taliban repeatedly offered him a position of power to make him stop his resistance. He declined, declaring the differences between their ideology and his own pro-democratic outlook on society to be insurmountable. Massoud wanted to convince the Taliban to join a political process leading towards democratic elections in a foreseeable future. He also predicted that without assistance from Pakistan and external extremist groups, the Taliban would lose their hold on power. In early 2001, the United Front employed a new strategy of local military pressure and global political appeals. Resentment was increasingly gathering against Taliban rule from the bottom of Afghan society including the Pashtun areas. At the same time, Massoud was very wary not to revive the failed Kabul government of the early 1990s. Already in 1999 the United Front leadership ordered the training of police forces specifically to keep order and protect the civilian population in case the United Front would be successful. Cross-factional negotiations From 1999 onwards, a renewed process was set into motion by the Tajik Ahmad Shah Massoud and the Pashtun Abdul Haq to unite all the ethnicities of Afghanistan. Massoud united the Tajiks, Hazara and Uzbeks as well as several Pashtun commanders under his United Front. Besides meeting with Pashtun tribal leaders and acting as a point of reference, Abdul Haq received increasing numbers of Pashtun Taliban themselves who were secretly approaching him. Some commanders who had worked for the Taliban military apparatus agreed to the plan to topple the Taliban regime as the Taliban lost support even among the Pashtuns. Senior diplomat and Afghanistan expert Peter Tomsen wrote that "[t]he 'Lion of Kabul' [Abdul Haq] and the 'Lion of Panjshir' [Ahmad Shah Massoud] would make a formidable anti-Taliban team if they combined forces. Haq, Massoud, and Karzai, Afghanistan's three leading moderates, could transcend the Pashtun – non-Pashtun, north-south divide." Steve Coll referred to this plan as a "grand Pashtun-Tajik alliance". The senior Hazara and Uzbek leaders took part in the process just like later Afghan president Hamid Karzai. They agreed to work under the banner of the exiled Afghan king Zahir Shah in Rome. In November 2000, leaders from all ethnic groups were brought together in Massoud's headquarters in northern Afghanistan, travelling from other parts of Afghanistan, Europe, the United States, Pakistan and India to discuss a Loya Jirga for a settlement of Afghanistan's problems and to discuss the establishment of a post-Taliban government. In September 2001, an international official who met with representatives of the alliance remarked, "It's crazy that you have this today ... Pashtuns, Tajiks, Uzbeks, Hazara ... They were all ready to buy in to the process". In early 2001, Ahmad Shah Massoud with leaders from all ethnicities of Afghanistan addressed the European Parliament in Brussels, asking the international community to provide humanitarian aid to the people of Afghanistan. He stated that the Taliban and al-Qaeda had introduced "a very wrong perception of Islam" and that without the support of Pakistan and Bin Laden the Taliban would not be able to sustain their military campaign for up to a year. On that visit to Europe, he also warned the U.S. about Bin Laden. The areas of Massoud Life in the areas under direct control of Massoud was different from the life in the areas under Taliban or Dostum's control. In contrast to the time of chaos in which all structures had collapsed in Kabul, Massoud was able to control most of the troops under his direct command well during the period starting in late 1996. Massoud always controlled the Panjshir, Takhar, parts of Parwan and Badakhshan during the war. Some other provinces (notably Kunduz, Baghlan, Nuristan and the north of Kabul) were captured by his forces from the Taliban and lost again from time to time as the frontlines varied. Massoud created democratic institutions which were structured into several committees: political, health, education and economic. Still, many people came to him personally when they had a dispute or problem and asked him to solve their problems. In September 2000, Massoud signed the Declaration of the Essential Rights of Afghan Women drafted by Afghan women. The declaration established gender equality in front of the law and the right of women to political participation, education, work, freedom of movement and speech. In the areas of Massoud, women and girls did not have to wear the Afghan burqa by law. They were allowed to work and to go to school. Although it was a time of war, girls' schools were operating in some districts. In at least two known instances, Massoud personally intervened against cases of forced marriage in favour of the women to make their own choice. While it was Massoud's stated personal conviction that men and women are equal and should enjoy the same rights, he also had to deal with Afghan traditions which he said would need a generation or more to overcome. In his opinion, that could only be achieved through education. Author Pepe Escobar wrote in Asia Times: Humayun Tandar, who took part as an Afghan diplomat in the 2001 International Conference on Afghanistan in Bonn, said that "strictures of language, ethnicity, region were [also] stifling for Massoud. That is why ... he wanted to create a unity which could surpass the situation in which we found ourselves and still find ourselves to this day." This applied also to strictures of religion. Jean-José Puig describes how Massoud often led prayers before a meal or at times asked his fellow Muslims to lead the prayer but also did not hesitate to ask the Jewish Princeton Professor Michael Barry or his Christian friend Jean-José Puig: "Jean-José, we believe in the same God. Please, tell us the prayer before lunch or dinner in your own language." International relations U.S. policy regarding Massoud, the Taliban and Afghanistan remained ambiguous and differed between the various U.S. government agencies. In 1997, U.S. State Department's Robin Raphel suggested to Massoud he should surrender to the Taliban. He soundly rejected the proposal. At one point in the war, in 1997, two top foreign policy officials in the Clinton administration flew to northern Afghanistan in an attempt to convince Massoud not to take advantage of a strategic opportunity to make crucial gains against the Taliban. In 1998, a U.S. Defense Intelligence Agency analyst, Julie Sirrs, visited Massoud's territories privately, having previously been denied official permission to do so by her agency. She reported that Massoud had conveyed warnings about strengthened ties between the Taliban and foreign Islamist terrorists. Returning home, she was sacked from her agency for insubordination, because at that time the U.S. administration had no trust in Massoud. In the meantime, the only collaboration between Massoud and another U.S. intelligence service, the Central Intelligence Agency (CIA), consisted of an effort to trace Osama bin Laden following the 1998 embassy bombings. The U.S. and the European Union provided no support to Massoud for the fight against the Taliban. A change of policy, lobbied for by CIA officers on the ground who had visited the area of Massoud, regarding support to Massoud, was underway in the course of 2001. According to Steve Coll's book Ghost Wars (who won the 2005 Pulitzer Prize for General Non-Fiction): U.S. Congressman Dana Rohrabacher also recalled: [B]etween Bush's inauguration and 9/11, I met with the new national security staff on 3 occasions, including one meeting with Condoleezza Rice to discuss Afghanistan. There were, in fact, signs noted in an overview story in The Washington Post about a month ago that some steps were being made to break away from the previous administration's Afghan policy. CIA lawyers, working with officers in the Near East Division and Counterterrorist Center, began to draft a formal, legal presidential finding for Bush's signature authorizing a new covert action program in Afghanistan, the first in a decade that sought to influence the course of the Afghan war in favour of Massoud. This change in policy was finalized in August 2001 when it was too late. After Pakistan had funded, directed and supported the Taliban's rise to power in Afghanistan, Massoud and the United Front received some assistance from India. The assistance provided by India was extensive, including uniforms, ordnance, mortars, small armaments, refurbished Kalashnikovs, combat and winter clothes, as well as funds. India was particularly concerned about Pakistan's Taliban strategy and the Islamic militancy in its neighborhood; it provided U.S.$70 million in aid including two Mi-17 helicopters, three additional helicopters in 2000 and US$8 million worth of high-altitude equipment in 2001. Also In the 1990s, India had run a field hospital at Farkor on the Tajik-Afghan border to treat wounded fighters from the then Northern Alliance that was battling the Taliban regime in Afghanistan. It was at the very same hospital that the Northern Alliance leader Ahmed Shah Masood was pronounced dead after being assassinated just two days before the 9/11 terror strikes in 2001. Furthermore, the alliance supposedly also received minor aid from Tajikistan, Russia and Iran because of their opposition to the Taliban and the Pakistani control over the Taliban's Emirate. Their support, however, remained limited to the most needed things. Meanwhile, Pakistan engaged up to 28,000 Pakistani nationals and regular Pakistani army troops to fight alongside the Taliban and Al Qaeda forces against Massoud. In April 2001, the president of the European Parliament, Nicole Fontaine (who called Massoud the "pole of liberty in Afghanistan"), invited Massoud with the support of French and Belgian politicians to address the European Parliament in Brussels, Belgium. In his speech, he asked for humanitarian aid for the people of Afghanistan. Massoud further went on to warn that his intelligence agents had gained limited knowledge about a large-scale terrorist attack on U.S. soil being imminent. Assassination Massoud, then aged 48, was the target of an assassination plot in Khwājah Bahā ud Dīn (Khvājeh Bahāuḏḏīn), Takhar Province in northeastern Afghanistan on September 9, 2001. The attackers' names were alternately given as Dahmane Abd al-Sattar, husband of Malika El Aroud, and Bouraoui el-Ouaer; or 34-year-old Karim Touzani and 26-year-old Kacem Bakkali. The attackers claimed to be Belgians originally from Morocco. According to Le Monde they transited through the municipality of Molenbeek. Their passports turned out to be stolen and their nationality was later determined to be Tunisian. Waiting for almost three weeks (during which they also interviewed Burhanuddin Rabbani and Abdul Rasul Sayyaf) for an interview opportunity, on September 8, 2001, an aide to Massoud recalls the would-be suicide attackers "were so worried" and threatened to leave if the interview did not happen in the next 24 hours (until September 10, 2001). They were finally granted an interview. During the interview, they set off a bomb composed of explosives hidden in the camera and in a battery-pack belt. Massoud died in a helicopter that was taking him to an Indian military field hospital at Farkhor in nearby Tajikistan. The explosion also killed Mohammed Asim Suhail, a United Front official, while Mohammad Fahim Dashty and Massoud Khalili were injured. One of the suicide attackers, Bouraoui, was killed by the explosion, while Dahmane Abd al-Sattar was captured and shot while trying to escape. Despite initial denials by the United Front, news of Massoud's death was reported almost immediately, appearing on the BBC, and in European and North American newspapers on September 10, 2001. On September 16, the United Front officially announced that Massoud had died of injuries in the suicide attack. Massoud was buried in his home village of Bazarak in the Panjshir Valley. The funeral, although in a remote rural area, was attended by hundreds of thousands of people. Massoud had survived assassination attempts over a period of 26 years, including attempts made by al-Qaeda, the Taliban, the Pakistani ISI and before them the Soviet KGB, the Afghan communist KHAD and Hekmatyar. The first attempt on Massoud's life was carried out by Hekmatyar and two Pakistani ISI agents in 1975 when Massoud was 22 years old. In early 2001, al-Qaeda would-be assassins were captured by Massoud's forces while trying to enter his territory. Connection to September 11, 2001 The assassination of Massoud is considered to have a strong connection to the September 11 attacks in 2001 on U.S. soil, which killed nearly 3,000 people. It appeared to have been the major terrorist attack which Massoud had warned against in his speech to the European Parliament several months earlier. In late 2001, a computer was seized that was stolen from an office used by al-Qaeda immediately after the fall of Kabul in November. This computer was mainly used by Aiman al-Zawahri and contained the letter with the interview request for Massoud. The two assassins had completed military training in training camps in Afghanistan at the end of 2000 and were selected for the suicide mission in the spring or early summer of the following year. The Afghan publicist Waheed Muzhda, who worked for the Taliban in the Foreign Ministry, confirmed the two assassins met with al-Qaeda officials in Kandahar and bin Laden and al-Zawahri saw them off when they left. Following the assassination, bin Laden had an emissary deliver Dahmane Abd al-Sattar's widow a letter with $500 in an envelope to settle a debt. An al-Qaeda magazine in Saudi Arabia later published a biography of Youssef al-Aayyiri, who headed al-Qaeda's operations in Saudi Arabia from 2002, which described al-Qaeda's involvement in Massoud's assassination. Osama bin Laden commissioned the assassination attempt to appease the Taliban because of the imminent terrorist attacks in the US, which would cause serious problems for the Taliban. The Taliban denied any involvement in Massoud's assassination, and it is very unlikely that they were privy to the assassination plans. There were a few minor attacks by the Taliban after the attack, but no major offensive. Investigative commission In April 2003, the Karzai administration created a commission to investigate the assassination of Massoud. In 2003, French investigators and the FBI were able to trace the provenance of the camera used in the assassination, which had been stolen in France some time earlier. Legacy National Hero of Afghanistan Massoud was the only chief Afghan leader who never left Afghanistan in the fight against the Soviet Union and later in the fight against the Taliban Emirate. In the areas under his direct control, such as Panjshir, some parts of Parwan and Takhar, Massoud established democratic institutions. One refugee who cramped his family of 27 into an old jeep to flee from the Taliban to the area of Massoud described Massoud's territory in 1997 as "the last tolerant corner of Afghanistan". In 2001, the Afghan interim government under president Hamid Karzai officially awarded Massoud the title of "Hero of the Afghan Nation". One analyst in 2004 said: One man holds a greater political punch than all 18 living [Afghan] presidential candidates combined. Though already dead for three years.... Since his death on September 9, 2001 at the hands of two al Qaeda-linked Islamic radicals, Massoud has been transformed from mujahedin to national heroif not saint. Pictures of Massoud, the Afghan mujahedin who battled the Soviets, other warlords, and the Taliban for more than 20 years, vastly outnumber those of any other Afghan including those of Karzai. Today Panjshir, the home of Massoud, is arguably the most peaceful place in the entire country. A small US military reconstruction team is based here, but there are none of the signs of foreign occupation that exist elsewhere. Even Afghan soldiers are few and far between. Instead, the people like to boast about how they keep their own security. A Massoud Foundation was established in 2003, to provide humanitarian assistance to Afghans, especially in the fields of health care and education. It also runs programs in the fields of culture, construction, agriculture and welfare. A major road in Kabul was named Great Massoud Road. A monument to Massoud was installed outside the US Embassy. A street in New Delhi, India, is named after Ahmad Shah Massoud. It is the first time that such an honour has been extended to a leader from that country as part of close ties between Afghanistan and India. Magpul Massoud was a 7.62 NATO rifle produced by Magpul which was named after himself. The road near the Afghanistan Embassy is a "symbol of ties" that binds the two nations that have always "enjoyed excellent relations". His friend Abdullah Abdullah said that Massoud was different from the other guerilla leaders. "He is a hero who led a clear struggle for the values of the people". In a 2001 mourning ceremony at Moscow to honour the memory of Ahmad Shah Massoud, one-time foe Colonel Abdul Qadir stated: "Though Massoud and I used to be enemies, I am sure he deserves great respect as an outstanding military leader and, first of all, as a patriot of his country". Lion of Panjshir Massoud's byname, "Lion of Panjshir" (, "Shir-e-Panjshir"), earned for his role during the Soviet occupation, is a rhyming play on words in Persian, as the name of the valley means "five lions". The Wall Street Journal referred to Massoud as "The Afghan Who Won the Cold War", referring to the global significance of the Soviet defeat in Afghanistan for the subsequent collapse of the Eastern Bloc. Honors outside Afghanistan In 2007, the government of India decided to name a road in New Delhi's Chanakyapuri district after Massoud. In February 2021, the Council of Paris in France honored Massoud by installing a plaque in the 8th arrondissement of Paris. The decision reflected Massoud's unique connections with France. In March 2021, the Mayor of Paris named a pathway in the Champs-Élysées gardens after Massoud. The ceremony was attended by Massoud's son and former president Hamid Karzai. Civilian orders Tajikistan: Order of Ismoili Somoni – posthumously awarded on September 2, 2021. Views on Pakistan and potential al-Qaeda attacks Although Pakistan were supporting the mujahideen groups during the Soviet-Afghan War, Ahmad Shah Massoud increasingly distrusted the Pakistanis and eventually kept his distance from them. In a 1999 interview, Massoud says "They [Pakistan] are trying to turn us into a colony. Without them there would be no war". In the spring 2001, Ahmad Shah Massoud addressed the European Parliament in Brussels, saying that Pakistan was behind the situation in Afghanistan. He also said that he believed that, without the support of Pakistan, Osama bin Laden, and Saudi Arabia, the Taliban would not be able to sustain their military campaign for up to a year. He said the Afghan population was ready to rise against them. Addressing the United States specifically, he warned that should the U.S. not work for peace in Afghanistan and put pressure on Pakistan to cease their support to the Taliban, the problems of Afghanistan would soon become the problems of the U.S. and the world. Declassified Defense Intelligence Agency (DIA) documents from November 2001 show that Massoud had gained "limited knowledge... regarding the intentions of al-Qaeda to perform a terrorist act against the U.S. on a scale larger than the 1998 bombing of the U.S. embassies in Kenya and Tanzania." They noted that he warned about such attacks. Succession and resistance to Taliban by his son In September 2019, his son Ahmad Massoud was declared as his successor. Following the 2021 Taliban offensive and the Fall of Kabul, Massoud allied with self-proclaimed acting president Amrullah Saleh and established the National Resistance Front of Afghanistan to the Taliban in the Panjshir Valley. Massoud called for West's support to resist the Taliban. Personal life Massoud was married to Sediqa Massoud. They had one son, Ahmad Massoud (born in 1989) and five daughters (Fatima born in 1992, Mariam born in 1993, Ayesha born in 1995, Zohra born in 1996 and Nasrine born in 1998). In 2005 Sediqa Massoud published a personal account on her life with Massoud (co-authored by two women's rights activists and friends of Sediqa Massoud, Chékéba Hachemi and ) called "Pour l'amour de Massoud" (For the love of Massoud), in which she describes a decent and loving husband. Massoud liked reading and had a library of 3,000 books at his home in Panjshir. He used to read the works of revolutionaries Mao Zedong and Che Guevara, and was a great admirer of Charles de Gaulle, founder of the French Fifth Republic. Massoud said his favorite author was Victor Hugo and he was also a fan of classical Persian poetry, including the works of Bidel and Hafez. He was keen at playing football and chess. Massoud's reputation for fearlessness is illustrated by a story about him told in Afghanistan, which cannot be confirmed. Once, while inspecting the front lines with a deputy, Massoud's driver had become lost and driven into the middle of a Taliban encampment. In tremendous peril, since he was recognized immediately, Massoud demanded to see the Taliban commander, making polite conversation for just long enough to bluff that he had arrived intentionally and not accidentally. The confused Taliban allowed him to leave. Massoud's family since his death have had a great deal of prestige in the politics of Afghanistan. One of his six brothers, Ahmad Zia Massoud, was the Vice President of Afghanistan from 2004 until 2009 under the first democratically elected government of Afghanistan. Unsuccessful attempts have been made on the life of Ahmad Zia Massoud in 2004 and late 2009. The Associated Press reported that eight Afghans died in the attempt on Ahmad Zia Massoud's life. Ahmad Zia Massoud leads the National Front of Afghanistan (a United Front group). Another brother, Ahmad Wali Massoud, was Afghanistan's Ambassador to the United Kingdom from 2002 to 2006. He was a member of Abdullah Abdullah's National Coalition of Afghanistan (another United Front group). In literature Essay Sebastian Junger, one of the last Western journalists to interview Massoud in depth, featured him in an essay in his 2002 collection, Fire. Fiction Massoud is the subject of Ken Follett's 1986 novel Lie Down With Lions, about the Soviet-Afghan War. He also is featured as a historical figure in James McGee's 1989 thriller, Crow's War. Massoud is the subject of Olivier Weber's novel Massoud's Confession, about the Islam of Enlightenment and the need to reform religious practices. Massoud is played by Mido Hamada in the 2006 miniseries The Path to 9/11. Notes References Further reading Sandy Gall (2021): Afghan Napoleon: The Life of Ahmad Shah Massoud. London: Haus Publishing. ISBN 978-1-913368-22-7. Marcela Grad (2009): Massoud: An Intimate Portrait of the Legendary Afghan Leader; Webster University Press, 310pp Sediqa Massoud with Chékéba Hachemi and Marie-Francoise Colombani (2005): Pour l'amour de Massoud; Document XO Editions, 265pp (in French) Amin Saikal (2006): Modern Afghanistan: A History of Struggle and Survival; I. B. Tauris, 352pp ("One of the "Five Best" Books on Afghanistan" – The Wall Street Journal) Roy Gutman (2008): How We Missed the Story: Osama Bin Laden, the Taliban and the Hijacking of Afghanistan; United States Institute of Peace Press, 304pp Coll, Steve (2004): Ghost Wars: The Secret History of the CIA, Afghanistan and Bin Laden, from the Soviet Invasion to September 9, 2001; Penguin Press, 695pp, . (won the 2005 Pulitzer Prize for General Non-Fiction) Stephen Tanner: Afghanistan: A Military History from Alexander the Great to the Fall of the Taliban Christophe de Ponfilly (2001): Massoud l'Afghan; Gallimard, 437pp (in French) Gary W. Bowersox (2004): The Gem Hunter-True Adventures of an American in Afghanistan; Geovision, Inc. (January 22, 2004), . Olivier Weber (2001): Le Faucon afghan; Robert Laffont Olivier Weber (2001, with Reza): Afghan eternities; Le Chene/ UNESCO Gary C. Schroen (2005): 'First In' An Insiders Account of How The CIA Spearheaded the War on Terror in Afghanistan; New York: Presidio Press/Ballantine Books, . Peter Bergen: Holy War, Inc. Ahmed Rashid: TALIBAN – The Story of the Afghan Warlords; . A. R. Rowan: On The Trail Of A Lion: Ahmed Shah Massoud, Oil Politics and Terror MaryAnn T. Beverly (2007): From That Flame; Kallisti Publishing Roger Plunk: The Wandering Peacemaker References to Massoud appear in the book "A Thousand Splendid Suns" by Khaled Hosseini. References to Massoud appear in the book "Sulla rotta dei ribelli" by Emilio Lonardo; . Kara Kush, London: William Collins Sons and Co., Ltd., 1986. The novel Kara Kush by Idries Shah is rumored to be loosely based on the exploits of Massoud during the Afghan-Soviet War Olivier Weber (2013): Massoud's Confession; Flammarion. External links Interviews The Last Interview with Ahmad Shah Massoud Piotr Balcerowicz, early August 2001 Obituaries and articles Remembering Massoud, a fighter for peace, The New York Times, September 10, 2002 60 Years of Asian Heroes: Ahmad Shah Massoud Time, 2006 Profile: Afghanistan's 'Lion Of Panjshir' Radio Free Europe/Radio Liberty, September 5, 2006 Afghan Commander Massoud, Killed on Eve of 9/11 Attacks, is a National Hero by The LA Times, September 22, 2010 Documentaries/Panegyrics An 18-minute video, 'Starving to Death', about Massoud defending Kabul against the Taliban siege in March 1996. With horrifying pictures of civilian war victims. By Journeyman Pictures/Journeyman.tv. Retrieved on YouTube, June 27, 2018. Reza and Olivier Weber on Massoud, National Geographic 'Afghanistan Revealed' (2000) | SnagFilms . A portrait of Massoud by National Geographic photographer Reza Deghati, cinematographer Stephen Cocklin, and writer Sebastian Junger [Dead link, on National Geographic:] A Film Screening and Panel Discussion Focusing on the Middle East and Afghanistan 1953 births 2001 deaths Afghan guerrillas Afghan guerrillas killed in action Afghan politicians Afghan Sunni Muslims Afghan Tajik people Assassinated Afghan politicians Assassinated military personnel Deaths by suicide bomber Defence ministers of Afghanistan Guerrilla warfare theorists Military personnel killed in action Mujahideen members of the Soviet–Afghan War People killed by al-Qaeda People murdered in Afghanistan 2000s assassinated politicians in Asia

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https://en.wikipedia.org/wiki/Arabs

Arabs

The Arabs (, DIN 31635: , Arabic pronunciation: ), also known as the Arab people (), are an ethnic group mainly inhabiting the Arab world in Western Asia and Northern Africa, which formally denotes the "Arab homeland". Moreover, a significant Arab diaspora is present in various parts of the world. According to the Abrahamic tradition, Arabs are descendants of Abraham through his son Ishmael, who was born in Canaan, a region in the Levant that is now part of Palestine and Israel. Islamic sources state that Abraham brought Hagar and Ishmael to Mecca. The 14th century Arab historian Ibn Kathir mentions that the pre-Islamic Arabs considered Ishmael as their patriarch. Arabs have been in the Fertile Crescent for thousands of years. In the 9th century BCE, the Assyrians made written references to Arabs as inhabitants of the Levant, Mesopotamia, and Arabia. Throughout the ancient Near East, Arabs established influential civilizations starting from 3000 BCE onwards, such as Dilmun, Gerrha and, Magan, playing a vital role in trade between Mesopotamia, and the Mediterranean. Other prominent tribes include Midian, ʿĀd, and Thamud mentioned in the Bible and Quran. The Amorites, likely originating from Arabia, emerged around 2100 BCE in the Levant and Mesopotamia. Around 1300 BCE, the Edomites were found adjacent to Moab in the southern Levant. Later, in 900 BCE, the Qedarites enjoyed close relations with the nearby Canaanite and Aramaean states, and their territory extended from Lower Egypt to the Southern Levant. From 1200 BCE to 110 BCE, powerful Arab kingdoms such as Saba, Lihyan, Minaean, Qataban, Hadhramaut, Awsan, and Homerite emerged in Arabia. During classical antiquity, the Nabataeans established their kingdom with Petra as the capital in 300 BCE, by 271 CE, the Palmyrene Empire with the capital Palmyra, led by Queen Zenobia, encompassed the Syria Palaestina, Arabia Petraea, and Egypt, as well as large parts of Anatolia. The Arab Itureans inhabited Lebanon, Syria, and northern Palestine (Galilee) during the Hellenistic and Roman periods. The Osroene and Hatran were Arab kingdoms in Upper Mesopotamia around 200 CE. In 164 CE, the Sasanians recognized the Arabs as "Arbayistan", meaning "land of the Arabs," as they were part of Adiabene in upper Mesopotamia. The Arab Emesenes ruled by 46 BCE Emesa (Homs), Syria. During late antiquity, the Tanukhids, Salihids, Lakhmids, Kinda, and Ghassanids were dominant Arab tribes in the Levant, Mesopotamia, and Arabia, they predominantly embraced Christianity. During the Middle Ages, Islam fostered a vast Arab union, leading to significant Arab migration from the East, extremely to North Africa, under the rule of Arab empires such as the Rashidun, Umayyad, Abbasid, and Fatimid, ultimately leading to the decline of the Byzantine and Sasanian empires. At its peak, Arab territories stretched from southern France to western China, forming one of history's largest empires. The Great Arab Revolt in the early 20th century, aided in dismantling the Ottoman Empire, ultimately leading to the formation of the Arab League on 22 March 1945, with its Charter endorsing the principle of a "unified Arab homeland". Arabs from Morocco to Iraq share a common bond based on ethnicity, language, culture, history, identity, ancestry, nationalism, geography, unity, and politics, which give the region a distinct identity and distinguish it from other parts of the Muslim world. They also have their own customs, literature, music, dance, media, food, clothing, society, sports, architecture, art and, mythology. Arabs have significantly influenced and contributed to human progress in many fields, including science, technology, philosophy, ethics, literature, politics, business, art, music, comedy, theatre, cinema, architecture, food, medicine, and religion. Before Islam, most Arabs followed polytheistic Semitic religion, while some tribes adopted Judaism or Christianity and a few individuals, known as the hanifs, followed a form of monotheism. Currently, around 93% of Arabs are Muslims, while the rest are mainly Arab Christians, as well as Arab groups of Druze and Baháʼís. Etymology The earliest documented use of the word Arab in reference to a people appears in the Kurkh Monoliths, an Akkadian-language record of the Assyrian conquest of Aram (9th century BCE). The Monoliths used the term to refer to Bedouins of the Arabian Peninsula under King Gindibu, who fought as part of a coalition opposed to Assyria. Listed among the booty captured by the army of the Assyrian king Shalmaneser III in the Battle of Qarqar (853 BCE) are 1000 camels of "Gîndibuʾ the Arbâya" or "[the man] Gindibu belonging to the Arabs" (ar-ba-a-a being an adjectival nisba of the noun ʿArab). The related word ʾaʿrāb is used to refer to Bedouins today, in contrast to ʿArab which refers to Arabs in general. Both terms are mentioned around 40 times in pre-Islamic Sabaean inscriptions. The term ʿarab ('Arab') occurs also in the titles of the Himyarite kings from the time of 'Abu Karab Asad until MadiKarib Ya'fur. According to Sabaean grammar, the term ʾaʿrāb is derived from the term ʿarab. The term is also mentioned in Quranic verses, referring to people who were living in Madina and it might be a south Arabian loanword into Quranic language. The oldest surviving indication of an Arab national identity is an inscription made in an archaic form of Arabic in 328 CE using the Nabataean alphabet, which refers to Imru' al-Qays ibn 'Amr as 'King of all the Arabs'. Herodotus refers to the Arabs in the Sinai, southern Palestine, and the frankincense region (Southern Arabia). Other Ancient-Greek historians like Agatharchides, Diodorus Siculus and Strabo mention Arabs living in Mesopotamia (along the Euphrates), in Egypt (the Sinai and the Red Sea), southern Jordan (the Nabataeans), the Syrian steppe and in eastern Arabia (the people of Gerrha). Inscriptions dating to the 6th century BCE in Yemen include the term 'Arab'. The most popular Arab account holds that the word Arab came from an eponymous father named Ya'rub, who was supposedly the first to speak Arabic. Abu Muhammad al-Hasan al-Hamdani had another view; he states that Arabs were called gharab ('westerners') by Mesopotamians because Bedouins originally resided to the west of Mesopotamia; the term was then corrupted into Arab. Yet another view is held by al-Masudi that the word Arab was initially applied to the Ishmaelites of the Arabah valley. In Biblical etymology, Arab (Hebrew: arvi) comes from the desert origin of the Bedouins it originally described (arava means 'wilderness'). The root ʿ-r-b has several additional meanings in Semitic languages—including 'west, sunset', 'desert', 'mingle', 'mixed', 'merchant' and 'raven'—and are "comprehensible" with all of these having varying degrees of relevance to the emergence of the name. It is also possible that some forms were metathetical from , 'moving around' (Arabic: , 'traverse') and hence, it is alleged, 'nomadic'. Origins Arabic is a Semitic language that belongs to the Afroasiatic language family. The majority of scholars accept the "Arabian peninsula" has long been accepted as the original Urheimat (linguistic homeland) of the Semitic languages. Or to be from the Levant. The ancient Semitic-speaking peoples lived in the ancient Near East, including the Levant, Mesopotamia, and the Arabian Peninsula from the 3rd millennium BCE to the end of antiquity. Proto-Semitic likely reached the Arabian Peninsula by the 4th millennium BCE, and its daughter languages spread outward from there, while Old Arabic began to differentiate from Central Semitic by the start of the 1st millennium BCE. Central Semitic is a branch of the Semitic language includes Arabic, Aramaic, Canaanite, Phoenician, Hebrew and others. The origins of Proto-Semitic may lie in the Arabian Peninsula, with the language spreading from there to other regions. This theory proposes that Semitic peoples reached Mesopotamia and other areas from the deserts to the west, such as the Akkadians who entered Mesopotamia around the late 4th millennium BCE. The origins of Semitic peoples are thought to include various regions Mesopotamia, the Levant, the Arabian Peninsula, and North Africa. Some view that Semitic may have originated in the Levant around 3800 BCE and subsequently spread to the Horn of Africa around 800 BCE from Arabia, as well as to North Africa. According to Arab-Islamic-Jewish traditions, Ishmael son of Abraham was "father of the Arabs", to be the ancestor of the Arabs. That Abraham be the ancestor of the Arabs and Israelites. Shem's descendants: Genesis chapter 10 verses 21–30 gives one list of descendants of Shem. In chapter 11 verses 10–26 a second list of descendants of Shem names Abraham and thus the Arabs and Israelites. Genetic research has indicated that Arabs and Jews share common genetic ancestry and are closely related. Additionally, it is common for Arabs and Jews to refer to each other as "cousins". The Book of Genesis narrates that God promised Hagar to beget from Ishmael twelve princes and turn him to a "great nation". Ya'rub is the grandson of Abir being the son of Qahtan/Joktan is an ancestor of the Ishmaelites and the Israelites according to the "Table of Nations" in the Book of Genesis () and the Books of Chronicles (). Qahtan/Joktan mentioned in the Hebrew Bible, he descends from Shem, son of Noah. Joktan's sons in the order provided in , were Almodad, Sheleph, Hazarmaveth, Jerah, Hadoram, Uzal, Diklah, Obal, Abimael, Sheba, Ophir, Havilah, and Jobab. Keturah was a wife of Abraham, according to the Book of Genesis, Abraham married Keturah after the death of his first wife, Sarah. Abraham and Keturah had six sons: Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. Genesis and First Chronicles also list seven of her grandsons (Sheba, Dedan, Ephah, Epher, Hanoch, Abida, and Eldaah). Keturah's sons were to have represented the Arab tribes who lived south and east of Palestine (). Ishmael was considered the ancestor of Muhammad the founder of Islam, was linked to him through the lineage of the patriarch Adnan. Ishmael also has been claimed as the ancestor of the Southern Arabs through his descendant Qahtan. "Zayd ibn Amr" was another Pre-Islamic figure who refused idolatry and preached monotheism, claiming it was the original belief of their [Arabs] father Ishmael. The tribes of Central West Arabia called themselves the "people of Abraham and the offspring of Ishmael." Ibn Khaldun an Arab scholar in the 8th century described the Arabs were divided into two groups: ‘Adnan and Qahtan, both of which were attributed to Ishmaelite origins. He provided a definition of who the Arabs were, stating that they were a large nation occupying territories from the Atlantic Ocean (Maghreb) in the West (Mashriq) to Yemen and the Indian border in the East. According to him, most Arabs descending from the Qudā‘a, Qahtan, and ‘Adnan tribes (Ishmaelite). The Hebrew Bible occasionally refers to Aravi peoples (or variants thereof), translated as "Arab". The scope of the term at that early stage is unclear, but it seems to have referred to various desert-dwelling Semitic tribes in the Levant and Arabia. And the Book of Jubilees claims that the sons of Ishmael intermingled with the 6 sons of Keturah, from Abraham, and their descendants were called Arabs and Ishmaelites: "And Ishmael and his sons, and the sons of Keturah and their sons, went together and dwelt from Paran to the entering in of Babylon in all the land towards the East facing the desert. And these mingled with each other, and their name was called Arabs, and Ishmaelites". The Biblical texts mention Ishmael, son of Abraham, as the ancestor of twelve nomadic tribes who settled in the desert lands between North Arabia, Egypt, and Palestine (Genesis 25:13-16). The Ishmaelites denoted a broad confederation of people, including sub-groups such as the Midianites, Amalekites, and Hagarites (Genesis 37:25, 27; 39:1). Chapter 25 lists his sons as: And these are the names of the sons of Ishmael, by their names, according to their generations: the firstborn of Ishmael Nebaioth; and Kedar, and Adbeel, and Mibsam, And Mishma, and Dumah, and Massa, Hadar, and Tema, Jetur, Naphish, and Kedemah. The Bible also mentions "Arabs" or "Arabians" as nomads wandering in North Arabia and Southern Palestine, with some verses associating them with animal-breeding, such as the tribute of flocks, rams, and goats brought to Jehoshaphat by the Arabs.The Quran mention, Ibrahim (Abraham) and his wife Hajar (Hagar) bore a prophetic child named Ishmael, who was gifted by God all of Ishmael, Alyasa, Yunus and Lut a favor above the nations. God ordered Ibrahim to bring Hajar and Ishmael to Mecca, where he prayed for them to be provided with water and fruits. Hajar ran between the hills of Safa and Marwa in search of water, and an angel appeared to them and provided them with water. Ishmael grew up in Mecca. Ibrahim was later ordered to sacrifice Ishmael in a dream, but God intervened and replaced him with a goat. Ibrahim and Ishmael then built the Kaaba in Mecca, which was originally constructed by Adam. The Quran calls itself , "Arabic", and , "clear". According to the Samaritan book Asaṭīr adds: "And after the death of Abraham, Ishmael reigned twenty-seven years; And all the children of Nebaot ruled for one year in the lifetime of Ishmael; And for thirty years after his death from the river of Egypt to the river Euphrates; and they built Mecca." Josephus also lists the sons and states that they "...inhabit the lands which are between Euphrates and the Red Sea, the name of which country is Nabathæa. The Targum Onkelos annotates (Genesis 25:16), describing the extent of their settlements: The Ishmaelites lived from Hindekaia (India) to Chalutsa (possibly in Arabia), by the side of Mizraim (Egypt), and from the area around Arthur (Assyria) up towards the north. This description suggests that the Ishmaelites were a widely dispersed group with a presence across a significant portion of the ancient Near East. History The nomads of Arabia have been spreading through the desert fringes of the Fertile Crescent since at least 3000 BCE, but the first known reference to the Arabs as a distinct group is from an Assyrian scribe recording a battle in 853 BCE. The history of the Arabs during the pre-Islamic period in various regions, including Arabia, Levant, Mesopotamia, and Egypt. The Arabs were mentioned by their neighbors, such as Assyrian and Babylonian Royal Inscriptions from 9th to 6th century BCE, mention the king of Qedar as king of the Arabs and King of the Ishmaelites. Of the names of the sons of Ishmael the names "Nabat, Kedar, Abdeel, Dumah, Massa, and Teman" were mentioned in the Assyrian Royal Inscriptions as tribes of the Ishmaelites. Jesur was mentioned in Greek inscriptions in the 1st century BCE. There are also records from Sargon's reign that mention sellers of iron to people called Arabs in Ḫuzaza in Babylon, causing Sargon to prohibit such trade out of fear that the Arabs might use the resource to manufacture weapons against the Assyrian army. The history of the Arabs in relation to the Bible shows that they were a significant part of the region and played a role in the lives of the Israelites. The study asserts that the Arab nation is an ancient and significant entity; however, it highlights that the Arabs lacked a collective awareness of their unity. They did not inscribe their identity as Arabs or assert exclusive ownership over specific territories. Magan, Midian, and ʿĀd are all ancient tribes or civilizations that are mentioned in Arabic literature and have roots in the Arabia. Magan (, ), known for its production of copper and other metals, the region was an important trading center in ancient times and is mentioned in the Qur'an as a place where the prophet Moses traveled during his lifetime. Midian (, ), on the other hand, was a region located in the northwestern part of the Arabia, the people of Midian are mentioned in the Qur'an as having worshiped idols and having been punished by God for their disobedience. The prophet Moses also lived in Midian for a time, where he married and worked as a shepherd. ʿĀd (, ), as mentioned earlier, was an ancient tribe that lived in the southern Arabia, the tribe was known for its wealth, power, and advanced technology, but they were ultimately destroyed by a powerful windstorm as punishment for their disobedience to God. ʿĀd is regarded as one of the original Arab tribes. The historian Herodotus provided extensive information about Arabia, describing the spices, terrain, folklore, trade, clothing, and weapons of the Arabs. In his third book, he mentioned the Arabs (Άραβες) as a force to be reckoned with in the north of the Arabian Peninsula just before Cambyses’ campaign against Egypt. Other Greek and Latin authors who wrote about Arabia include Theophrastus, Strabo, Diodorus Siculus, and Pliny the Elder. The Jewish historian Flavius Josephus wrote about the Arabs and their king, mentioning their relationship with Cleopatra, the queen of Egypt. The tribute paid by the Arab king to Cleopatra was collected by Herod, the king of the Jews, but the Arab king later became slow in his payments and refused to pay without further deductions. This sheds some light on the relations between the Arabs, Jews, and Egypt at that time. Geshem the Arab was an Arab man who opposed Nehemiah in the Hebrew Bible (Neh. 2:19, 6:1). He was likely the chief of the Arab tribe "Gushamu" and have been a powerful ruler with influence stretching from northern Arabia to Judah. The Arabs and the Samaritans made efforts to hinder Nehemiah's rebuilding of the walls of Jerusalem. The term "Saracens" was a term used in the early centuries, both in Greek and Latin writings, to refer to the "Arabs" who lived in and near what was designated by the Romans as Arabia Petraea (Levant) and Arabia Deserta (Arabia). The Christians of Iberia used the term Moor to describe all the Arabs and Muslims of that time. Arabs of Medina referred to the nomadic tribes of the deserts as the A'raab, and considered themselves sedentary, but were aware of their close racial bonds. Hagarenes is a term widely used by early Syriac, Greek, and Armenian to describe the early Arab conquerors of Mesopotamia, Syria and Egypt, refers to the descendants of Hagar, who bore a son named Ishmael to Abraham in the Old Testament. In the Bible, the Hagarenes referred to as "Ishmaelites" or "Arabs." The Arab conquests in the 7th century was a sudden and dramatic conquest led by Arab armies, which quickly conquered much of the Middle East, North Africa, and Spain. It was a significant moment for Islam, which saw itself as the successor of Judaism and Christianity. The term ʾiʿrāb has the same root refers to the Bedouin tribes of the desert who rejected Islam and resisted Muhammad.(Quran 9:97) The 14th century Kebra Nagast says "And therefore the children of Ishmael became kings over Tereb, and over Kebet, and over Nôbâ, and Sôba, and Kuergue, and Kîfî, and Mâkâ, and Môrnâ, and Fînḳânâ, and ’Arsîbânâ, and Lîbâ, and Mase'a, for they were the seed of Shem." Antiquity Limited local historical coverage of these civilizations means that archaeological evidence, foreign accounts and Arab oral traditions are largely relied on to reconstruct this period. Prominent civilizations at the time included, Dilmun civilization was an important trading centre which at the height of its power controlled the Arabian Gulf trading routes. The Sumerians regarded Dilmun as holy land. Dilmun is regarded as one of the oldest ancient civilizations in the Middle East. which arose around the 4th millennium BCE and lasted to 538 BCE. Gerrha was an ancient city of Eastern Arabia, on the west side of the Gulf, Gerrha was the center of an Arab kingdom from approximately 650 BCE to circa CE 300. Thamud, which arose around the 1st millennium BCE and lasted to about 300 CE. From the beginning of the first millennium BCE, Proto-Arabic, or Ancient North Arabian, texts give a clearer picture of the Arabs' emergence. The earliest are written in variants of epigraphic south Arabian musnad script, including the 8th century BCE Hasaean inscriptions of eastern Saudi Arabia, the Thamudic texts found throughout the Arabian Peninsula and Sinai. The Qedarites were a largely nomadic ancient Arab tribal confederation centred in the Wādī Sirḥān in the Syrian Desert. They were known for their nomadic lifestyle and for their role in the caravan trade that linked the Arabian Peninsula with the Mediterranean world. The Qedarites gradually expanded their territory over the course of the 8th and 7th centuries BCE, and by the 6th century BCE, they had consolidated into a kingdom that covered a large area in northern Arabia, southern Palestine, and the Sinai Peninsula. The Qedarites were influential in the ancient Near East, and their kingdom played a significant role in the political and economic affairs of the region for several centuries. Sheba ( Saba) is kingdom mentioned in the Hebrew Bible (Old Testament) and the Quran. Sheba features in Jewish, Muslim, and Christian traditions, whose lineage goes back to Qahtan son of Hud, one of the ancestors of the Arabs, Sheba was mentioned in Assyrian inscriptions and in the writings of Greek and Roman writers. One of the ancient written references that also spoke of Sheba is the Old Testament, which stated that the people of Sheba supplied Syria and Egypt with incense, especially frankincense, and exported gold and precious stones to them. The Queen of Sheba who travelled to Jerusalem to question King Solomon, great caravan of camels, carrying gifts of gold, precious stones, and spices, when she arrived, she was impressed by the wisdom and wealth of King Solomon, and she posed a series of difficult questions to him. King Solomon was able to answer all of her questions, and the Queen of Sheba was impressed by his wisdom and his wealth.()Sabaeans are mentioned several times in the Hebrew Bible. In the Quran, they are described as either (, not to be confused with , ), or as (). They were known for their prosperous trade and agricultural economy, which was based on the cultivation of frankincense and myrrh, these highly valued aromatic resins were exported to Egypt, Greece, and Rome, making the Sabaeans wealthy and powerful, they also traded in spices, textiles, and other luxury goods. The Maʾrib Dam was one of the greatest engineering achievements of the ancient world, and it provided water for the city of Maʾrib and the surrounding agricultural lands. Lihyan also called Dadān or Dedan was a powerful and highly organized ancient Arab kingdom that played a vital cultural and economic role in the north-western region of the Arabian Peninsula and used Dadanitic language. The Lihyanites were known for their advanced organization and governance, and they played a significant role in the cultural and economic life of the region. The kingdom was centered around the city of Dedan (modern-day Al Ula), and it controlled a large territory that extended from Yathrib in the south to parts of the Levant in the north. The Arab genealogies consider the Banu Lihyan to be Ishmaelites, and used Dadanitic language. The Kingdom of Ma'in was an ancient Arab kingdom with a hereditary monarchy system and a focus on agriculture and trade. Proposed dates range from the 15th century BCE to the 1st century CE Its history has been recorded through inscriptions and classical Greek and Roman books, although the exact start and end dates of the kingdom are still debated. The Ma'in people had a local governance system with councils called "Mazood," and each city had its own temple that housed one or more gods. They also adopted the Phoenician alphabet and used it to write their language. The kingdom eventually fell to the Arab Sabaean people.Qataban was an ancient kingdom located in the South Arabia, which existed from the early 1st millennium BCE till the late 1st or 2nd centuries CE. It developed into a centralized state in the 6th century BCE with two co-kings ruling poles. Qataban expanded its territory, including the conquest of Ma'in and successful campaigns against the Sabaeans. It challenged the supremacy of the Sabaeans in the region and waged a successful war against Hadramawt in the 3rd century BCE. Qataban's power declined in the following centuries, leading to its annexation by Hadramawt and Ḥimyar in the 1st century CE. The Kingdom of Hadhramaut it was known for its rich cultural heritage, as well as its strategic location along important trade routes that connected the Middle East, South Asia, and East Africa. The Kingdom was established around the 3rd century BCE, and it reached its peak during the 2nd century CE, when it controlled much of the southern Arabian Peninsula. The kingdom was known for its impressive architecture, particularly its distinctive towers, which were used as watchtowers, defensive structures, and homes for wealthy families. The people of Hadhramaut were skilled in agriculture, especially in growing frankincense and myrrh. They had a strong maritime culture and traded with India, East Africa, and Southeast Asia. Although the kingdom declined in the 4th century, Hadhramaut remained a cultural and economic center. Its legacy can still be seen today. The ancient Kingdom of Awsān (8th century BCE–7th century BCE) was indeed one of the most important small kingdoms of South Arabia, and its capital Ḥajar Yaḥirr was a significant center of trade and commerce in the ancient world. It is fascinating to learn about the rich history of this region and the cultural heritage that has been preserved through the archaeological sites like Ḥajar Asfal. The destruction of the city in the 7th century BCE by the king and Mukarrib of Saba' Karab El Watar is a significant event in the history of South Arabia. It highlights the complex political and social dynamics that characterized the region at the time and the power struggles between different kingdoms and rulers. The victory of the Sabaeans over Awsān is also a testament to the military might and strategic prowess of the Sabaeans, who were one of the most powerful and influential kingdoms in the region. The Himyarite Kingdom or Himyar, was an ancient kingdom that existed from around the 2nd century BCE to the 6th century CE. It was centered in the city of Zafar, which is located in present-day Yemen. The Himyarites were a Arab people who spoke a South Arabian language and were known for their prowess in trade and seafaring, they controlled the southern part of Arabia and had a prosperous economy based on agriculture, commerce, and maritime trade, they were skilled in irrigation and terracing, which allowed them to cultivate crops in the arid environment. The Himyarites converted to Judaism in the 4th century CE, and their rulers became known as the "Kings of the Jews", this conversion was likely influenced by their trade connections with the Jewish communities of the Red Sea region and the Levant, however, the Himyarites also tolerated other religions, including Christianity and the local pagan religions. Classical antiquity The Nabataeans were nomadic Arabs who moved into territory vacated by the Edomites– Semites who settled the region centuries before them. Their early inscriptions were in Aramaic, but gradually switched to Arabic, and since they had writing, it was they who made the first inscriptions in Arabic. The Nabataean alphabet was adopted by Arabs to the south, and evolved into modern Arabic script around the 4th century. This is attested by Safaitic inscriptions (beginning in the 1st century BCE) and the many Arabic personal names in Nabataean inscriptions. From about the 2nd century BCE, a few inscriptions from Qaryat al-Faw reveal a dialect no longer considered proto-Arabic, but pre-classical Arabic. Five Syriac inscriptions mentioning Arabs have been found at Sumatar Harabesi, one of which dates to the 2nd century CE. Arabs are first recorded in Palmyra in the late first millennium BCE. The soldiers of the sheikh Zabdibel, who aided the Seleucids in the battle of Raphia (217 BCE), were described as Arabs; Zabdibel and his men were not actually identified as Palmyrenes in the texts, but the name "Zabdibel" is a Palmyrene name leading to the conclusion that the sheikh hailed from Palmyra. After the Battle of Edessa in 260 CE. Valerian's capture by the Sassanian king Shapur I was a significant blow to Rome, and it left the empire vulnerable to further attacks. Zenobia was able to capture most of the Near East, including Egypt and parts of Asia Minor. However, their empire was short-lived, as Aurelian was able to defeat the Palmyrenes and recover the lost territories. The Palmyrenes were helped by their Arab allies, but Aurelian was also able to leverage his own alliances to defeat Zenobia and her army. Ultimately, the Palmyrene Empire lasted only a few years, but it had a significant impact on the history of the Roman Empire and the Near East. The Itureans were an Arab people who inhabited the region of Iturea, emerged as a prominent power in the region after the decline of the Seleucid Empire in the 2nd century BCE, from their base around Mount Lebanon and the Beqaa Valley, they came to dominate vast stretches of Syrian territory, and appear to have penetrated into northern parts of Palestine as far as the Galilee. Tanukhids were an Arab tribal confederation that lived in the central and eastern Arabian Peninsula during the late ancient and early medieval periods. As mentioned earlier, they were a branch of the Rabi'ah tribe, which was one of the largest Arab tribes in the pre-Islamic period. They were known for their military prowess and played a significant role in the early Islamic period, fighting in battles against the Byzantine and Sassanian empires and contributing to the expansion of the Arab empire. The Osroene Arabs, also known as the Abgarids, were in possession of the city of Edessa in the ancient Near East for a significant period of time. Edessa was located in the region of Osroene, which was an ancient kingdom that existed from the 2nd century BCE to the 3rd century CE. They established a dynasty known as the Abgarids, which ruled Edessa for several centuries. The most famous ruler of the dynasty was Abgar V, who is said to have corresponded with Jesus Christ and is believed to have converted to Christianity. The Abgarids played an important role in the early history of Christianity in the region, and Edessa became a center of Christian learning and scholarship. The Kingdom of Hatra was an ancient city located in the region of Mesopotamia, it was founded in the 2nd or 3rd century BCE and flourished as a major center of trade and culture during the Parthian Empire. The rulers of Hatra were known as the Arsacid dynasty, which was a branch of the Parthian ruling family. However, in the 2nd century CE, the Arab tribe of Banu Tanukh seized control of Hatra and established their own dynasty. The Arab rulers of Hatra assumed the title of "malka," which means king in Arabic, and they often referred to themselves as the "King of the Arabs." The Osroeni and Hatrans were part of several Arab groups or communities in upper Mesopotamia, who also included the Praetavi of Singara reported by Pliny the Elder, and the Arabs of Adiabene which was an ancient kingdom in northern Mesopotamia, its chief city was Arbela (Arba-ilu), where Mar Uqba had a school, or the neighboring Hazzah, by which name the later Arabs also called Arbela. This elaborate Arab presence in upper Mesopotamia was acknowledged by the Sasanians, who called the region Arbayistan, meaning "land of the Arabs", is first attested as a province in the Ka'ba-ye Zartosht inscription of the second Sasanian King of Kings (shahanshah) Shapur I (), which was erected in 262. The Emesene were a dynasty of Arab priest-kings that ruled the city of Emesa (modern-day Homs, Syria) in the Roman province of Syria from the 1st century CE to the 3rd century CE. The dynasty is notable for producing a number of high priests of the god El-Gabal, who were also influential in Roman politics and culture. The first ruler of the Emesene dynasty was Sampsiceramus I, who came to power in 64 CE. He was succeeded by his son, Iamblichus, who was followed by his own son, Sampsiceramus II. Under Sampsiceramus II, Emesa became a client kingdom of the Roman Empire, and the dynasty became more closely tied to Roman political and cultural traditions. Late antiquity The Ghassanids, Lakhmids and Kindites were the last major migration of pre-Islamic Arabs out of Yemen to the north. The Ghassanids increased the Semitic presence in then-Hellenized Syria, the majority of Semites were Aramaic peoples. They mainly settled in the Hauran region and spread to modern Lebanon, Palestine and Jordan. Greeks and Romans referred to all the nomadic population of the desert in the Near East as Arabi. The Romans called Yemen "Arabia Felix". The Romans called the vassal nomadic states within the Roman Empire Arabia Petraea, after the city of Petra, and called unconquered deserts bordering the empire to the south and east Arabia Magna. The Lakhmids as a dynasty inherited their power from the Tanukhids, the mid Tigris region around their capital Al-Hira. They ended up allying with the Sassanids against the Ghassanids and the Byzantine Empire. The Lakhmids contested control of the Central Arabian tribes with the Kindites with the Lakhmids eventually destroying the Kingdom of Kinda in 540 after the fall of their main ally Himyar. The Persian Sassanids dissolved the Lakhmid dynasty in 602, being under puppet kings, then under their direct control. The Kindites migrated from Yemen along with the Ghassanids and Lakhmids, but were turned back in Bahrain by the Abdul Qais Rabi'a tribe. They returned to Yemen and allied themselves with the Himyarites who installed them as a vassal kingdom that ruled Central Arabia from "Qaryah Dhat Kahl" (the present-day called Qaryat al-Faw). They ruled much of the Northern/Central Arabian peninsula, until they were destroyed by the Lakhmid king Al-Mundhir, and his son 'Amr. The Ghassanids were an Arab tribe in the Levant in the early third century. According to Arab genealogical tradition, they were considered a branch of the Azd tribe. They fought alongside the Byzantines against the Sasanians and Arab Lakhmids. Most Ghassanids were Christians, converting to Christianity in the first few centuries, and some merged with Hellenized Christian communities. After the Muslim conquest of the Levant, few Ghassanids became Muslims, and most remained Christian and joined Melkite and Syriac communities within what is now Jordan, Palestine, Syria, and Lebanon. The Salihids were Arab foederati in the 5th century, were ardent Christians, and their period is less documented than the preceding and succeeding periods due to a scarcity of sources. Most references to the Salihids in Arabic sources derive from the work of Hisham ibn al-Kalbi, with the Tarikh of Ya'qubi considered valuable for determining the Salihids' fall and the terms of their foedus with the Byzantines. Middle Ages During the Middle Ages, Arab civilization flourished and the Arabs made significant contributions to the fields of science, mathematics, medicine, philosophy, and literature, with the rise of great cities like Baghdad, Cairo, and Cordoba, they became centers of learning, attracting scholars, scientists, and intellectuals. Arabs forged many empires and dynasties, most notably, the Rashidun Empire, the Umayyad Empire, the Abbasid Empire, the Fatimid Empire, among others. These empires were characterized by their expansion, scientific achievements, and cultural flourishing, extended from Spain to India The Arabs during the Middle Ages was a vibrant and dynamic region that left a lasting impact on the world.The rise of Islam began when Muhammad and his followers migrated from Mecca to Medina in an event known as the Hijra. Muhammad spent the last ten years of his life engaged in a series of battles to establish and expand the Muslim community. From 622 to 632, he led the Muslims in a state of war against the Meccans. During this period, the Arabs conquered the region of Basra, and under the leadership of Umar, they established a base and built a mosque there. Another conquest was Midian, but due to its harsh environment, the settlers eventually moved to Kufa. Umar successfully defeated rebellions by various Arab tribes, bringing stability to the entire Arabian peninsula and unifying it. Under the leadership of Uthman, the Arab empire expanded through the conquest of Persia, with the capture of Fars in 650 and parts of Khorasan in 651. The conquest of Armenia also began in the 640s. During this time, the Rashidun Empire extended its rule over the entire Sassanid Empire and more than two-thirds of the Eastern Roman Empire. However, the reign of Ali ibn Abi Talib, the fourth caliph, was marred by the First Fitna, or the First Islamic Civil War, which lasted throughout his rule. After a peace treaty with Hassan ibn Ali and the suppression of early Kharijite disturbances, Muawiyah I became the Caliph. This marked a significant transition in leadership. Arab empires Rashidun era (632–661) After the death of Muhammad in 632, Rashidun armies launched campaigns of conquest, establishing the Caliphate, or Islamic Empire, one of the largest empires in history. It was larger and lasted longer than the previous Arab empire Tanukhids of Queen Mawia or the Arab Palmyrene Empire. The Rashidun state was a completely new state and unlike the Arab kingdoms of its century such as the Himyarite, Lakhmids or Ghassanids. During the Rashidun era, the Arab community expanded rapidly, conquering many territories and establishing a vast Arab empire, which is marked by the reign of the first four caliphs, or leaders, of the Arab community. These caliphs are Abu Bakr, Umar, Uthman and Ali, who are collectively known as the Rashidun, meaning "rightly guided." The Rashidun era is significant in Arab and Islamic history as it marks the beginning of the Arab empire and the spread of Islam beyond the Arabian Peninsula. During this time, the Arab community faced numerous challenges, including internal divisions and external threats from neighboring empires. Under the leadership of Abu Bakr, the Arab community successfully quelled a rebellion by some tribes who refused to pay Zakat, or Islamic charity. During the reign of Umar ibn al-Khattab, the Arab empire expanded significantly, conquering territories such as Egypt, Syria, and Iraq. The reign of Uthman ibn Affan was marked by internal dissent and rebellion, which ultimately led to his assassination. Ali, the cousin and son-in-law of the Prophet Muhammad, succeeded Uthman as caliph but faced opposition from some members of the Islamic community who believed he was not rightfully appointed. Despite these challenges, the Rashidun era is remembered as a time of great progress and achievement in Arab and Islamic history, the caliphs established a system of governance that emphasized justice and equality for all members of the Islamic community. They also oversaw the compilation of the Quran into a single text and spread Arabic teachings and principles throughout the empire. Overall, the Rashidun era played a crucial role in shaping Arab history and continues to be revered by Muslims worldwide as a period of exemplary leadership and guidance. Umayyad era (661–750 & 756–1031) In 661, the Rashidun Caliphate fell into the hands of the Umayyad dynasty and Damascus was established as the empire's capital. The Umayyads were proud of their Arab identity and sponsored the poetry and culture of pre-Islamic Arabia. They established garrison towns at Ramla, Raqqa, Basra, Kufa, Mosul and Samarra, all of which developed into major cities. Caliph Abd al-Malik established Arabic as the Caliphate's official language in 686. Caliph Umar II strove to resolve the conflict when he came to power in 717. He rectified the disparity, demanding that all Muslims be treated as equals, but his intended reforms did not take effect, as he died after only three years of rule. By now, discontent with the Umayyads swept the region and an uprising occurred in which the Abbasids came to power and moved the capital to Baghdad. Umayyads expanded their Empire westwards capturing North Africa from the Byzantines. Before the Arab conquest, North Africa was conquered or settled by various people including Punics, Vandals and Romans. After the Abbasid Revolution, the Umayyads lost most of their territories with the exception of Iberia. Their last holding became known as the Emirate of Córdoba. It was not until the rule of the grandson of the founder of this new emirate that the state entered a new phase as the Caliphate of Córdoba. This new state was characterized by an expansion of trade, culture and knowledge, and saw the construction of masterpieces of al-Andalus architecture and the library of Al-Ḥakam II which housed over 400,000 volumes. With the collapse of the Umayyad state in 1031 CE, Al-Andalus was divided into small kingdoms. Abbasid era (750–1258 & 1261–1517) The Abbasids were the descendants of Abbas ibn Abd al-Muttalib, one of the youngest uncles of Muhammad and of the same Banu Hashim clan. The Abbasids led a revolt against the Umayyads and defeated them in the Battle of the Zab effectively ending their rule in all parts of the Empire with the exception of al-Andalus. In 762, the second Abbasid Caliph al-Mansur founded the city of Baghdad and declared it the capital of the Caliphate. Unlike the Umayyads, the Abbasids had the support of non-Arab subjects. The Islamic Golden Age was inaugurated by the middle of the 8th century by the ascension of the Abbasid Caliphate and the transfer of the capital from Damascus to the newly founded city of Baghdad. The Abbasids were influenced by the Quranic injunctions and hadith such as "The ink of the scholar is more holy than the blood of martyrs" stressing the value of knowledge. During this period the Arab Empire became an intellectual centre for science, philosophy, medicine and education as the Abbasids championed the cause of knowledge and established the "House of Wisdom" () in Baghdad. Rival dynasties such as the Fatimids of Egypt and the Umayyads of al-Andalus were also major intellectual centres with cities such as Cairo and Córdoba rivaling Baghdad. The Abbasids ruled for 200 years before they lost their central control when Wilayas began to fracture in the 10th century; afterwards, in the 1190s, there was a revival of their power, which was ended by the Mongols, who conquered Baghdad in 1258 and killed the Caliph Al-Musta'sim. Members of the Abbasid royal family escaped the massacre and resorted to Cairo, which had broken from the Abbasid rule two years earlier; the Mamluk generals taking the political side of the kingdom while Abbasid Caliphs were engaged in civil activities and continued patronizing science, arts and literature. Fatimid era (909–1171) The Fatimid caliphate was founded by al-Mahdi Billah, a descendant of Fatimah, the daughter of Muhammad, the Fatimid Caliphate was a Shia that existed from 909 to 1171 CE. The empire was based in North Africa, with its capital in Cairo, and at its height, it controlled a vast territory that included parts of modern-day Egypt, Libya, Tunisia, Algeria, Morocco, Syria, and Palestine. The Fatimid state took shape among the Kutama, in the West of the North African littoral, in Algeria, in 909 conquering Raqqada, the Aghlabid capital. In 921 the Fatimids established the Tunisian city of Mahdia as their new capital. In 948 they shifted their capital to Al-Mansuriya, near Kairouan in Tunisia, and in 969 they conquered Egypt and established Cairo as the capital of their caliphate. The Fatimids were known for their religious tolerance and intellectual achievements, they established a network of universities and libraries that became centers of learning in the Islamic world. They also promoted the arts, architecture, and literature, which flourished under their patronage. One of the most notable achievements of the Fatimids was the construction of the Al-Azhar Mosque and Al-Azhar University in Cairo. Founded in 970 CE, it is one of the oldest universities in the world and remains an important center of Islamic learning to this day. The Fatimids also had a significant impact on the development of Islamic theology and jurisprudence. They were known for their support of Shia Islam and their promotion of the Ismaili branch of Shia Islam. Despite their many achievements, the Fatimids faced numerous challenges during their reign. They were constantly at war with neighboring empires, including the Abbasid Caliphate and the Byzantine Empire. They also faced internal conflicts and rebellions, which weakened their empire over time. In 1171 CE, the Fatimid Caliphate was conquered by the Ayyubid dynasty, led by Saladin. Although the Fatimid dynasty came to an end, its legacy continued to influence Arab-Islamic culture and society for centuries to come. Ottoman era (1517–1918) From 1517 to 1918, The Ottomans defeated the Mamluk Sultanate in Cairo, and ended the Abbasid Caliphate in the battles of Marj Dabiq and Ridaniya. They entered the Levant and Egypt as conquerors, and brought down the Abbasid caliphate after it lasted for many centuries. In 1911, Arab intellectuals and politicians from throughout the Levant formed al-Fatat ("the Young Arab Society"), a small Arab nationalist club, in Paris. Its stated aim was "raising the level of the Arab nation to the level of modern nations." In the first few years of its existence, al-Fatat called for greater autonomy within a unified Ottoman state rather than Arab independence from the empire. Al-Fatat hosted the Arab Congress of 1913 in Paris, the purpose of which was to discuss desired reforms with other dissenting individuals from the Arab world. However, as the Ottoman authorities cracked down on the organization's activities and members, al-Fatat went underground and demanded the complete independence and unity of the Arab provinces. The Arab Revolt was a military uprising of Arab forces against the Ottoman Empire during World War I, began in 1916, led by Sherif Hussein bin Ali, the goal of the revolt was to gain independence for the Arab lands under Ottoman rule and to create a unified Arab state. The revolt was sparked by a number of factors, including the Arab desire for greater autonomy within the Ottoman Empire, resentment towards Ottoman policies, and the influence of Arab nationalist movements. The Arab Revolt was a significant factor in the eventual defeat of the Ottoman Empire. The revolt helped to weaken Ottoman military power and tie up Ottoman forces that could have been deployed elsewhere. It also helped to increase support for Arab independence and nationalism, which would have a lasting impact on the region in the years to come. The Empire's defeat and the occupation of part of its territory by the Allied Powers in the aftermath of World War I, the Sykes–Picot Agreement had a significant impact on the Arab world and its people. The agreement divided the Arab territories of the Ottoman Empire into zones of control for France and Britain, ignoring the aspirations of the Arab people for independence and self-determination. Renaissance The Golden Age of Arab Civilization known as the "Islamic Golden Age", traditionally dated from the 8th century to the 13th century. The period is traditionally said to have ended with the collapse of the Abbasid caliphate due to Siege of Baghdad in 1258. During this time, Arab scholars made significant contributions to fields such as mathematics, astronomy, medicine, and philosophy. These advancements had a profound impact on European scholars during the Renaissance. The Arabs shared its knowledge and ideas with Europe, including translations of Arabic texts. These translations had a significant impact on culture of Europe, leading to the transformation of many philosophical disciplines in the medieval Latin world. Additionally, the Arabs made original innovations in various fields, including the arts, agriculture, alchemy, music, and pottery, and traditional star names such as Aldebaran, scientific terms like alchemy (whence also chemistry), algebra, algorithm, etc. and names of commodities such as sugar, camphor, cotton, coffee, etc. From the medieval scholars of the Renaissance of the 12th century, who had focused on studying Greek and Arabic works of natural sciences, philosophy, and mathematics, rather than on such cultural texts. Arab logician, most notably Averroes, had inherited Greek ideas after they had invaded and conquered Egypt and the Levant. Their translations and commentaries on these ideas worked their way through the Arab West into Iberia and Sicily, which became important centers for this transmission of ideas. From the 11th to the 13th century, many schools dedicated to the translation of philosophical and scientific works from Classical Arabic to Medieval Latin were established in Iberia, most notably the Toledo School of Translators. This work of translation from Arab culture, though largely unplanned and disorganized, constituted one of the greatest transmissions of ideas in history. During the Timurid Renaissance spanning the late 14th, the 15th, and the early 16th centuries, there was a significant exchange of ideas, art, and knowledge between different cultures and civilizations. Arab scholars, artists, and intellectuals played a role in this cultural exchange, contributing to the overall intellectual atmosphere of the time. They participated in various fields, including literature, art, science, and philosophy. In the late 19th and early 20th centuries, the Arab Renaissance, also known as the Nahda, was a cultural and intellectual movement that emerged. The term "Nahda" means "awakening" or "renaissance" in Arabic, and refers to a period of renewed interest in Arabic language, literature, and culture. Modern period The modern period in Arab history refers to the time period from the late 19th century to the present day. During this time, the Arab world experienced significant political, economic, and social changes. One of the most significant events of the modern period was the collapse of the Ottoman Empire, the end of Ottoman rule led to the emergence of new nation-states in the Arab world. Sharif Hussein was supposed, in the event of the success of the Arab revolution and the victory of the Allies in World War I, to be able to establish an independent Arab state consisting of the Arabian Peninsula and the Fertile Crescent, including Iraq and the Levant. He aimed to become "King of the Arabs" in this state, however, the Arab revolution only succeeded in achieving some of its objectives, including the independence of the Hejaz and the recognition of Sharif Hussein as its king by the Allies.Arab nationalism emerged as a major movement in the early 20th century, with many Arab intellectuals, artists, and political leaders seeking to promote unity and independence for the Arab world. This movement gained momentum after World War II, leading to the formation of the Arab League and the creation of several new Arab states. Pan-Arabism that emerged in the early 20th century and aimed to unite all Arabs into a single nation or state. It emphasized on a shared ancestry, culture, history, language and identity and sought to create a sense of pan-Arab identity and solidarity. The roots of pan-Arabism can be traced back to the Arab Renaissance or Al-Nahda movement of the late 19th century, which saw a revival of Arab culture, literature, and intellectual thought. The movement emphasized the importance of Arab unity and the need to resist colonialism and foreign domination. One of the key figures in the development of pan-Arabism was the Egyptian statesman and intellectual, Gamal Abdel Nasser, who led the 1952 revolution in Egypt and became the country's president in 1954. Nasser promoted pan-Arabism as a means of strengthening Arab solidarity and resisting Western imperialism. He also supported the idea of Arab socialism, which sought to combine pan-Arabism with socialist principles. Similar attempts were made by other Arab leaders, such as Hafiz al-Assad, Ahmed Hassan al-Bakr, Faisal I of Iraq, Muammar Gaddafi, Saddam Hussein, Gaafar Nimeiry and Anwar Sadat. Many proposed unions aimed to create a unified Arab entity that would promote cooperation and integration among Arab countries. However, the initiatives faced numerous challenges and obstacles, including political divisions, regional conflicts, and economic disparities. The United Arab Republic (UAR) was a political union formed between Egypt and Syria in 1958, with the goal of creating a federal structure that would allow each member state to retain its identity and institutions. However, by 1961, Syria had withdrawn from the UAR due to political differences, and Egypt continued to call itself the UAR until 1971, when it became the Arab Republic of Egypt. In the same year the UAR was formed, another proposed political union, the Arab Federation, was established between Jordan and Iraq, but it collapsed after only six months due to tensions with the UAR and the 14 July Revolution. A confederation called the United Arab States, which included the UAR and the Mutawakkilite Kingdom of Yemen, was also created in 1958 but dissolved in 1961. Later attempts to create a political and economic union among Arab countries included the Federation of Arab Republics, which was formed by Egypt, Libya, and Syria in the 1970s but dissolved after five years due to political and economic challenges. Muammar Gaddafi, the leader of Libya, also proposed the Arab Islamic Republic with Tunisia, aiming to include Algeria and Morocco, instead the Arab Maghreb Union was formed in 1989. During the latter half of the 20th century, many Arab countries experienced political upheaval and conflicts, including, revolutions. The Arab-Israeli conflict remains a major issue in the region, and has resulted in ongoing tensions and periodic outbreaks of violence. In recent years, the Arab world has faced new challenges, including economic and social inequalities, demographic changes, and the impact of globalization. The Arab Spring was a series of pro-democracy uprisings and protests that swept across several countries in the Arab world in 2010 and 2011. The uprisings were sparked by a combination of political, economic, and social grievances and called for democratic reforms and an end to authoritarian rule. While the protests resulted in the downfall of some long-time authoritarian leaders, they also led to ongoing conflicts and political instability in other countries. Identity Arab identity is defined independently of religious identity, and pre-dates the spread of Islam, with historically attested Arab Christian kingdoms and Arab Jewish tribes. Today, however, most Arabs are Muslim, with a minority adhering to other faiths, largely Christianity, but also Druze and Baháʼí. Paternal descent has traditionally been considered the main source of affiliation in the Arab world when it comes to membership into an ethnic group or clan. Arab identity is shaped by a range of factors, including ancestry, history, language, customs, and traditions. Arab identity has been shaped by a rich history that includes the rise and fall of empires, colonization, and political turmoil. Despite the challenges faced by Arab communities, their shared cultural heritage has helped to maintain a sense of unity and pride in their identity. Today, Arab identity continues to evolve as Arab communities navigate complex political, social, and economic landscapes. Despite this, the Arab identity remains an important aspect of the cultural and historical fabric of the Arab world, and continues to be celebrated and preserved by communities around the world. Subgroups Arab tribes are prevalent in the Arabian Peninsula, Mesopotamia, Levant, Egypt, Maghreb, the Sudan region and Horn Africa. The Arabs of the Levant are traditionally divided into Qays and Yaman tribes. The distinction between Qays and Yaman dates back to the pre-Islamic era and was based on tribal affiliations and geographic locations.; they include Banu Kalb, Kinda, Ghassanids, and Lakhmids. The Qays were made up of tribes such as Banu Kilab, Banu Tayy, Banu Hanifa, and Banu Tamim, among others. The Yaman, on the other hand, were composed of tribes such as Banu Hashim, Banu Makhzum, Banu Umayya, and Banu Zuhra, among others. Most notable Arab tribes of Mesopotamia (Iraq) are Banu Khuza'ah, Shammar, Al-Dulaimi, Al-Jubouri, Al-Aniza, Al-Asadi, Al-Ali, Al-Duraji, Bani Hasan, Al-Khazraj, Banu Lam, Bani Malik, Al-Muntafiq, Al-Bu Nasir, Al-Dhafeer, Al-Musawi, Al-Ubaid, Otaibah, Al-Zubaidi, Mutair, Banu Tamim, Banu Kilab, Banu Asad and as well in Iran began well before the Arab conquest of Persia in 633 CE. The largest group of Iranian Arabs are the Ahwazi Arabs, including Banu Ka'b, Bani Turuf and the Musha'sha'iyyah sect. Smaller groups are the Khamseh nomads in Fars Province and the Arabs in Khorasan. As a result of the centuries-long Arab migration to the Maghreb, several Arab tribes (including Banu Hilal, Banu Sulaym and Maqil) settled in the Maghreb and formed the sub-tribes which exist to present-day. The most notable Arab tribes of Morocco include Abda, Ahl Rachida, Azwafit, Banu Ma'qil, Banu Tamim, Beni Ahsen, Beni Amir, Beni Guil, Beni Ḥassān, Banu Hilal, Beni Khirane, Beni Mathar, Beni Moussa, Banu Sulaym, Beni Zemmour, Chaouia, Doukkala, Hyayna, Khlout, Mzab, Oulad Delim, Oulad Tidrarin, Oulad Zyan, Rahamna, Sless, Zaër, Zughba, Zyayda. The Banu Hilal spent almost a century in Egypt before moving to Libya, Tunisia and Algeria, and another century later moved to Morocco. The most well known Arab tribes of Algeria are Chaamba, Dhouaouda, Doui-Menia, Ghenanma, Beni Hassan, Ouled Djerir, Awlad Sidi Shaykh, Banu Tamim, Thaaliba, Ouled Nail, Beni Amer, Hamyan, Riyah, Zughba, Athbaj, Ahl Ben Ali, Banu Suwayd, Awlad Sidi Yahya, Mirdas and Banu Latif. Most notable Arab tribes of Sudan are Ababda, Artega, Awadia, Awlad Himayd, Batahin, Bedaria, Beni Halba, Dubasiyin, Fadnia, Fezara, Gawamaa, Gimma, Habbaniya, Hasania, Hawazma, Humr, Husseinat, Ja'alin, Kababish, Kawahla, Maalia, Mahamid, Manasir, Messiria, Rashaida, Rizeigat, Rubatab, Rufa'a, Selim, Shaigiya, Shukria, Ta’isha. According to Arab traditions, tribes are divided into different divisions called Arab skulls, which are described in the traditional custom of strength, abundance, victory, and honor. A number of them branched out, which later became independent tribes (sub-tribes). The majority of Arab tribes are descended from these major tribes. They are: Bakr, has descendants in Arabia and Iraq. Kinanah, has descendants in Arabia, Iraq, Egypt, Sudan, Palestine, Tunisia, Morocco, and Syria. Hawazin, has descendants in Arabia, Libya, Algeria, Morocco, Sudan, and Iraq. Tamim, has descendants in Arabia, Iraq, Iran, Palestine, Algeria, and Morocco Azd, has descendants in Arabia, Iraq, Levant, and North Africa. Ghatafan, has descendants in Arabia and the Maghreb. Madhhij, has descendants in Arabia and Iraq. Abd al-Qays, has descendants in Arabia. Al Qays (القيس), has descendants in Arabia. Quda'a, has descendants in Arabia, Syria, and North Africa. Geographic distribution Arab homeland The total number of Arabs living in the Arab nations is estimated at 366 million by the CIA Factbook (as of 2014). The estimated number of Arabs in countries outside the Arab League is estimated at 17.5 million, yielding a total of close to 384 million. The Arab world stretches around , from the Atlantic Ocean in the west to the Arabian Sea in the east and from the Mediterranean Sea in the north to the Horn of Africa and the Indian Ocean in the southeast. Arab diaspora Arab diaspora refers to descendants of the Arab immigrants who, voluntarily or as refugees, emigrated from their native lands in non-Arab countries, primarily in East Africa, South America, Europe, North America, Australia and parts of South Asia, Southeast Asia, the Caribbean, and West Africa. According to the International Organization for Migration, there are 13 million first-generation Arab migrants in the world, of which 5.8 million reside in Arab countries. Arab expatriates contribute to the circulation of financial and human capital in the region and thus significantly promote regional development. In 2009, Arab countries received a total of US$35.1 billion in remittance in-flows and remittances sent to Jordan, Egypt and Lebanon from other Arab countries are 40 to 190 per cent higher than trade revenues between these and other Arab countries. The 250,000 strong Lebanese community in West Africa is the largest non-African group in the region. Arab traders have long operated in Southeast Asia and along the East Africa's Swahili coast. Zanzibar was once ruled by Omani Arabs. Most of the prominent Indonesians, Malaysians, and Singaporeans of Arab descent are Hadhrami people with origins in southern Arabia in the Hadramawt coastal region. Europe There are millions of Arabs living in Europe, mostly concentrated in France (about 6,000,000 in 2005). Most Arabs in France are from the Maghreb but some also come from the Mashreq areas of the Arab world. Arabs in France form the second largest ethnic group after French people. In Italy, Arabs first arrived on the southern island of Sicily in the 9th century. The largest modern societies on the island from the Arab world are Tunisians and Moroccans, who make up 10.9% and 8% respectively of the foreign population of Sicily, which in itself constitutes 3.9% of the island's total population. The modern Arab population of Spain numbers 1,800,000, and there have been Arabs in Spain since the early 8th century when the Muslim conquest of Hispania created the state of Al-Andalus. Arabs In Germany the Arab population numbers over 1,401,950. in the United Kingdom between 366,769 and 500,000, and in Greece between 250,000 and 750,000). In addition, Greece is home to people from Arab countries who have the status of refugees (e.g. refugees of the Syrian civil war). In the Netherlands 180,000, and in Denmark 121,000. Other countries are also home to Arab populations, including Norway, Austria, Bulgaria, Switzerland, North Macedonia, Romania and Serbia. As of late 2015, Turkey had a total population of 78.7 million, with Syrian refugees accounting for 3.1% of that figure based on conservative estimates. Demographics indicated that the country previously had 1,500,000 to 2,000,000 Arab residents, Turkey's Arab population is now 4.5 to 5.1% of the total population, or approximately 4–5 million people. Americas Arab immigration to the United States began in larger numbers during the 1880s, and today, an estimated 3.7 million Americans have some Arabic background. Arab Americans are found in every state, but more than two thirds of them live in just ten states, and one-third live in Los Angeles, Detroit, and New York City specifically. Most Arab Americans were born in the US, and nearly 82% of US-based Arabs are citizens. Arabs immigrants began to arrive in Canada in small numbers in 1882. Their immigration was relatively limited until 1945, after which time it increased progressively, particularly in the 1960s and thereafter. According to the website "Who are Arab Canadians," Montreal, the Canadian city with the largest Arab population, has approximately 267,000 Arab inhabitants. Latin America has the largest Arab population outside of the Arab World. Latin America is home to anywhere from 17–25 to 30 million people of Arab descent, which is more than any other diaspora region in the world. The Brazilian and Lebanese governments claim there are 7 million Brazilians of Lebanese descent. Also, the Brazilian government claims there are 4 million Brazilians of Syrian descent. Other large Arab communities includes Argentina (about 3,500,000) The interethnic marriage in the Arab community, regardless of religious affiliation, is very high; most community members have only one parent who has Arab ethnicity. Colombia (over 3,200,000), Venezuela (over 1,600,000), Mexico (over 1,100,000), Chile (over 800,000), and Central America, particularly El Salvador, and Honduras (between 150,000 and 200,000). Arab Haitians (257,000) a large number of whom live in the capital are more often than not, concentrated in financial areas where the majority of them establish businesses. Caucasus In 1728, a Russian officer described a group of Arab nomads who populated the Caspian shores of Mughan (in present-day Azerbaijan) and spoke a mixed Turkic-Arabic language. It is believed that these groups migrated to the South Caucasus in the 16th century. The 1888 edition of Encyclopædia Britannica also mentioned a certain number of Arabs populating the Baku Governorate of the Russian Empire. They retained an Arabic dialect at least into the mid-19th century, there are nearly 30 settlements still holding the name Arab (for example, Arabgadim, Arabojaghy, Arab-Yengija, etc.). From the time of the Arab conquest of the South Caucasus, continuous small-scale Arab migration from various parts of the Arab world occurred in Dagestan. The majority of these lived in the village of Darvag, to the north-west of Derbent. The latest of these accounts dates to the 1930s. Most Arab communities in southern Dagestan underwent linguistic Turkicisation, thus nowadays Darvag is a majority-Azeri village. Central, South, East and Southeast Asia According to the History of Ibn Khaldun, the Arabs that were once in Central Asia have been either killed or have fled the Tatar invasion of the region, leaving only the locals. However, today many people in Central Asia identify as Arabs. Most Arabs of Central Asia are fully integrated into local populations, and sometimes call themselves the same as locals (for example, Tajiks, Uzbeks) but they use special titles to show their Arab origin such as Sayyid, Khoja or Siddiqui. There are only two communities in India which claim Arab descent, the Chaush of the Deccan region and the Chavuse of Gujarat. These groups are largely descended from Hadhrami migrants who settled in these two regions in the 18th century. However, neither community still speaks Arabic, although the Chaush have seen re-immigration to Eastern Arabia and thus a re-adoption of Arabic. In South Asia, where Arab ancestry is considered prestigious, some communities have origin myths that claim Arab ancestry. Several communities following the Shafi'i madhab (in contrast to other South Asian Muslims who follow the Hanafi madhab) claim descent from Arab traders like the Konkani Muslims of the Konkan region, the Mappilla of Kerala, and the Labbai and Marakkar of Tamil Nadu and a few Christian groups in India that claim and have Arab roots are situated in the state of Kerala. South Asian Iraqi biradri may have records of their ancestors who migrated from Iraq in historical documents. The Sri Lankan Moors are the third largest ethnic group in Sri Lanka, constituting 9.23% of the country's total population. Some sources trace the ancestry of the Sri Lankan Moors to Arab traders who settled in Sri Lanka at some time between the 8th and 15th centuries. There are about 5,000,000 Native Indonesians with Arab ancestry, of Hadrami descent. Sub-Saharan Africa Afro-Arabs are individuals and groups from Africa who are of partial Arab descent. Most Afro-Arabs inhabit the Swahili Coast in the African Great Lakes region, although some can also be found in parts of the Arab world. Large numbers of Arabs migrated to West Africa, particularly Côte d'Ivoire (home to over 100,000 Lebanese), Senegal (roughly 30,000 Lebanese), Sierra Leone (roughly 10,000 Lebanese today; about 30,000 prior to the outbreak of civil war in 1991), Liberia, and Nigeria. Since the end of the civil war in 2002, Lebanese traders have become re-established in Sierra Leone. The Arabs of Chad occupy northern Cameroon and Nigeria (where they are sometimes known as Shuwa), and extend as a belt across Chad and into Sudan, where they are called the Baggara grouping of Arab ethnic groups inhabiting the portion of Africa's Sahel. There are 171,000 in Cameroon, 150,000 in Niger), and 107,000 in the Central African Republic. Religion Arabs are mostly Muslims with a Sunni majority and a Shia minority, one exception being the Ibadis, who predominate in Oman. Arab Christians generally follow Eastern Churches such as the Greek Orthodox and Greek Catholic churches, though a minority of Protestant Church followers also exists. There are also Arab communities consisting of Druze and Baháʼís. Historically, there were also sizeable populations of Arab Jews around the Arab World. Before the coming of Islam, most Arabs followed a pagan religion with a number of deities, including Hubal, Wadd, Allāt, Manat, and Uzza. A few individuals, the hanifs, had apparently rejected polytheism in favor of monotheism unaffiliated with any particular religion. Some tribes had converted to Christianity or Judaism. The most prominent Arab Christian kingdoms were the Ghassanid and Lakhmid kingdoms. When the Himyarite king converted to Judaism in the late 4th century, the elites of the other prominent Arab kingdom, the Kindites, being Himyirite vassals, apparently also converted (at least partly). With the expansion of Islam, polytheistic Arabs were rapidly Islamized, and polytheistic traditions gradually disappeared. Today, Sunni Islam dominates in most areas, vastly so in Levant, North Africa, West Africa and the Horn of Africa. Shia Islam is dominant in Bahrain and southern Iraq while northern Iraq is mostly Sunni. Substantial Shia populations exist in Lebanon, Yemen, Kuwait, Saudi Arabia, northern Syria and Al-Batinah Region in Oman. There are small numbers of Ibadi and non-denominational Muslims too. The Druze community is concentrated in Levant. Christianity had a prominent presence In pre-Islamic Arabia among several Arab communities, including the Bahrani people of Eastern Arabia, the Christian community of Najran, in parts of Yemen, and among certain northern Arabian tribes such as the Ghassanids, Lakhmids, Taghlib, Banu Amela, Banu Judham, Tanukhids and Tayy. In the early Christian centuries, Arabia was sometimes known as Arabia heretica, due to its being "well known as a breeding-ground for heterodox interpretations of Christianity." Christians make up 5.5% of the population of Western Asia and North Africa. In Lebanon, Christians number about 40.5% of the population. In Syria, Christians make up 10% of the population. Christians in Palestine make up 8% and 0.7% of the populations, respectively. In Egypt, Christians number about 10% of the population. In Iraq, Christians constitute 0.1% of the population. In Israel, Arab Christians constitute 2.1% (roughly 9% of the Arab population). Arab Christians make up 8% of the population of Jordan. Most North and South American Arabs are Christian, so are about half of the Arabs in Australia who come particularly from Lebanon, Syria and Palestine. One well known member of this religious and ethnic community is Saint Abo, martyr and the patron saint of Tbilisi, Georgia. Arab Christians also live in holy Christian cities such as Nazareth, Bethlehem and the Christian Quarter of the Old City of Jerusalem and many other villages with holy Christian sites. Culture Arab culture is shaped by a long and rich history that spans thousands of years, from the Atlantic Ocean in the west to the Arabian Sea in the east, and from the Mediterranean Sea in the north to the Horn of Africa and the Indian Ocean in the southeast. The various religions the Arabs have adopted throughout their history and the various empires and kingdoms that have ruled and took lead of the Arabic civilization have contributed to the ethnogenesis and formation of modern Arab culture. Language, literature, gastronomy, art, architecture, music, spirituality, philosophy and mysticism are all part of the cultural heritage of the Arabs. One of the defining features of Arab culture is its strong emphasis on family and community. Social bonds and obligations are highly valued, and individuals are expected to prioritize the needs and well-being of their families and communities over their own personal interests. Hospitality is also a key aspect of Arab culture, with guests traditionally treated with great warmth and generosity. Arabs share basic beliefs and values that cross national and social class boundaries. Social attitudes have remained constant because Arab society is more conservative and demands conformity from its members. Language Arabic is a Semitic language of the Afro-Asiatic Family. The first evidence for the emergence of the language appears in military accounts from 853 BCE. Today it has developed widely used as a lingua franca for more than 500 million people. It is also a liturgical language for 1.7 billion Muslims. Arabic is one of six official languages of the United Nations, and is revered in Islam as the language of the Quran. Arabic has two main registers. Classical Arabic is the form of the Arabic language used in literary texts from Umayyad and Abbasid times (7th to 9th centuries). It is based on the medieval dialects of Arab tribes. Modern Standard Arabic (MSA) is the direct descendant used today throughout the Arab world in writing and in formal speaking, for example, prepared speeches, some radio broadcasts, and non-entertainment content, while the lexis and stylistics of Modern Standard Arabic are different from Classical Arabic. There are also various regional dialects of colloquial spoken Arabic that both vary greatly from both each other and from the formal written and spoken forms of Arabic. Mythology Arabic mythology comprises the ancient beliefs of the Arabs. Prior to Islam the Kaaba of Mecca was covered in symbols representing the myriad demons, djinn, demigods, or simply tribal gods and other assorted deities which represented the polytheistic culture of pre-Islamic. It has been inferred from this plurality an exceptionally broad context in which mythology could flourish. The most popular beasts and demons of Arabian mythology are Bahamut, Dandan, Falak, Ghoul, Hinn, Jinn, Karkadann, Marid, Nasnas, Qareen, Roc, Shadhavar, Werehyena and other assorted creatures which represented the profoundly polytheistic environment of pre-Islamic. The most prominent symbol of Arabian mythology is the Jinn or genie. Jinns are supernatural beings that can be good or evil. They are not purely spiritual, but are also physical in nature, being able to interact in a tactile manner with people and objects and likewise be acted upon. The jinn, humans, and angels make up the known sapient creations of God. Ghouls also feature in the mythology as a monster or evil spirit associated with graveyards and consuming human flesh. In Arabic folklore, ghouls belonged to a diabolic class of jinn and were said to be the offspring of Iblīs, the prince of darkness in Islam. They were capable of constantly changing form, but always retained donkey's hooves. Literature The Quran, the main holy book of Islam, had a significant influence on the Arabic language, and marked the beginning of Arabic literature. Muslims believe it was transcribed in the Arabic dialect of the Quraysh, the tribe of Muhammad. As Islam spread, the Quran had the effect of unifying and standardizing Arabic. Not only is the Quran the first work of any significant length written in the language, but it also has a far more complicated structure than the earlier literary works with its 114 suwar (chapters) which contain 6,236 ayat (verses). It contains injunctions, narratives, homilies, parables, direct addresses from God, instructions and even comments on how the Quran will be received and understood. It is also admired for its layers of metaphor as well as its clarity, a feature which is mentioned in An-Nahl, the 16th surah. Al-Jahiz (born 776, in Basra – December 868/January 869) was an Arab prose writer and author of works of literature, Mu'tazili theology, and politico-religious polemics. A leading scholar in the Abbasid Caliphate, his canon includes two hundred books on various subjects, including Arabic grammar, zoology, poetry, lexicography, and rhetoric. Of his writings, only thirty books survive. Al-Jāḥiẓ was also one of the first Arabian writers to suggest a complete overhaul of the language's grammatical system, though this would not be undertaken until his fellow linguist Ibn Maḍāʾ took up the matter two hundred years later. There is a small remnant of pre-Islamic poetry, but Arabic literature predominantly emerges in the Middle Ages, during the Golden Age of Islam. Imru' al-Qais was a king and poet in the 6th century, he was the last king of Kindite. He is among the finest Arabic poetry to date, as well sometimes considered the father of Arabic poetry. Kitab al-Aghani by Abul-Faraj was called by the 14th-century historian Ibn Khaldun the register of the Arabs. Literary Arabic is derived from Classical Arabic, based on the language of the Quran as it was analyzed by Arabic grammarians beginning in the 8th century. A large portion of Arabic literature before the 20th century is in the form of poetry, and even prose from this period is either filled with snippets of poetry or is in the form of saj or rhymed prose. The ghazal or love poem had a long history being at times tender and chaste and at other times rather explicit. In the Sufi tradition the love poem would take on a wider, mystical and religious importance. Arabic epic literature was much less common than poetry, and presumably originates in oral tradition, written down from the 14th century or so. Maqama or rhymed prose is intermediate between poetry and prose, and also between fiction and non-fiction. Maqama was an incredibly popular form of Arabic literature, being one of the few forms which continued to be written during the decline of Arabic in the 17th and 18th centuries. Arabic literature and culture declined significantly after the 13th century, to the benefit of Turkish and Persian. A modern revival took place beginning in the 19th century, alongside resistance against Ottoman rule. The literary revival is known as al-Nahda in Arabic, and was centered in Egypt and Lebanon. Two distinct trends can be found in the nahda period of revival. The first was a neo-classical movement which sought to rediscover the literary traditions of the past, and was influenced by traditional literary genres—such as the maqama—and works like One Thousand and One Nights. In contrast, a modernist movement began by translating Western modernist works—primarily novels—into Arabic. A tradition of modern Arabic poetry was established by writers such as Francis Marrash, Ahmad Shawqi and Hafiz Ibrahim. Iraqi poet Badr Shakir al-Sayyab is considered to be the originator of free verse in Arabic poetry. Cuisine Arab cuisine is largely divided into Khaleeji cuisine, Levantine cuisine and Maghrebi cuisine. Is characterized by a variety of herbs and spices, including cumin, coriander, cinnamon, sumac, za'atar, and cardamom, which add depth and complexity to dishes. In the Maghreb, is known for its use of Couscous, a type of semolina pasta that is served with stews or tagines made with meat, vegetables, and aromatic spices such as cumin, coriander, and saffron. In the Levant, its cuisine is known for its mezze, a variety of small dishes that are served as appetizers or side dishes. Mezze dishes include Hummus, Baba ghanoush, Tabouleh and stuffed grape leaves, is also known for its Kebabs, Shawarma and Falafel. Gulf cuisine leans heavily on meat and rice and is heavily spiced, its use of rice, meat, and spices, such as saffron and cardamom. Mansaf, a traditional dish from Jordan made with lamb, rice, and a fermented yogurt sauce, is a popular dish in the Arabian Peninsula. Fertile Crescent cuisine is known for its use of herbs and spices, such as mint, dill, and cilantro. Tharid, a soup made with bread, lamb, and vegetables, is a traditional Iraqi dish, as well other popular Iraqi dishes include Dolma, a dish of stuffed vegetables, and kubba, a dish of stuffed meatballs. Arab cuisine is also known for its sweets and desserts, such as Knafeh, Baklava, Halva, and Qatayef. Arabic coffee, or qahwa, is a traditional drink that is served with dates. Arab cuisine has influenced other cuisines various cultures, including Ottoman, Persian, and Andalusian. Arab cuisine is rich in history and culture, and each region has its unique flavors and cooking styles that reflect its traditions and heritage. One will find the following items in most dishes; cinnamon, fish (in coastal areas), garlic, lamb (or veal), mild to hot sauces, mint, onion, rice, saffron, sesame, yogurt, spices due to heavy trading between the two regions. Tea, thyme (or oregano), turmeric, a variety of fruits (primarily citrus) and vegetables such as cucumbers, eggplants, lettuce, tomato, green pepper, green beans, zucchini and parsley. Art Arabic art has taken various forms, including, among other things, jewelry, textiles and architecture. Arabic script has also traditionally been heavily embellished with often colorful Arabic calligraphy, with one notable and widely used example being Kufic script. Arabic miniatures (Arabic: الْمُنَمْنَمَات الْعَرَبِيَّة, Al-Munamnamāt al-ʿArabīyah) are small paintings on paper, usually book or manuscript illustrations but also sometimes separate artworks that occupy entire pages. The earliest example dates from around 690 CE, with a flourishing of the art from between 1000 and 1200 CE in the Abbasid caliphate. The art form went through several stages of evolution while witnessing the fall and rise of several Arab caliphates. Arab miniaturists got totally assimilated and subsequently disappeared due to the Ottoman occupation of the Arab world. Nearly all forms of Islamic miniatures (Persian miniatures, Ottoman miniatures and Mughal miniatures) owe their existences to Arabic miniatures, as Arab patrons were the first to demand the production of illuminated manuscripts in the Caliphate, it was not until the 14th century that the artistic skill reached the non-Arab regions of the Caliphate. Despite the considerable changes in Arabic miniature style and technique, even during their last decades, the early Umayyad Arab influence could still be noticed. Arabic miniature artists include Ismail al-Jazari, who illustrated his own Book of Knowledge of Ingenious Mechanical Devices, and the Abbasid artist, Yahya Al-Wasiti, who probably lived in Baghdad in the late Abbasid era (12th to 13th-centuries), was one of the pre-eminent exponents of the Baghdad school. In 1236-1237, he is known to have transcribed and illustrated the book, Maqamat (also known as the Assemblies or the Sessions), a series of anecdotes of social satire written by Al-Hariri of Basra. The narrative concerns the travels of a middle-aged man as he uses his charm and eloquence to swindle his way across the Arabic world. With most surviving Arabic manuscripts in western museums, Arabic miniatures occupy very little space in modern Arab culture. Arabesque is a form of artistic decoration consisting of "surface decorations based on rhythmic linear patterns of scrolling and interlacing foliage, tendrils" or plain lines, often combined with other elements. Another definition is "Foliate ornament, typically using leaves, derived from stylised half-palmettes, which were combined with spiralling stems". It usually consists of a single design which can be 'tiled' or seamlessly repeated as many times as desired. Architecture Arabic Architecture has a deep diverse history as well Arab world is home to the greatest number of UNESCO World Heritage Sites (List of World Heritage Sites in the Arab states), it dates to the dawn of the history in pre-Islamic Arabia and includes various styles from the Nabataean architecture developed in the ancient kingdom of the Nabataeans, who were a nomadic Arab tribe that controlled a significant portion of the Middle East from the 4th century BCE to the 2nd century CE. The Nabataeans were known for their skill in carving out elaborate buildings, tombs, and other structures from the sandstone cliffs of the region. One of the most famous examples of Nabataean architecture is the city of Petra, which is located in modern-day Jordan, was the capital of the Nabataean kingdom and is renowned for its impressive rock-cut architecture. Prior to the start of the Arab conquests, Arab tribal client states, the Lakhmids and Ghassanids, played a significant role in transmitting and adapting the architectural traditions of the Byzantine and Sasanian empires to the later Arab Islamic dynasties, which lasted from the 7th to the 13th century, was characterized by a fusion of various architectural styles and techniques. The Arab empire expanded rapidly, and with it, came a diverse range of architectural influences. One of the most notable architectural achievements of the Arab Empire is the Great Mosque of Damascus in Syria, which was built in the early 8th century, was constructed on the site of a Christian basilica and incorporated elements of Byzantine and Roman architecture, such as arches, columns, and intricate mosaics. Another important architectural is the Al-Aqsa Mosque in Jerusalem, which was built in the late 7th century. The mosque features an impressive dome and a large prayer hall, as well as intricate geometric patterns and calligraphy on the walls. During the Umayyad and Abbasid periods of the Arab Empire, many new architectural forms were developed, including the horseshoe arch, the pointed arch, and the muqarnas, a type of vaulting used to create intricate, three-dimensional geometric patterns. These Arab client states were located on the borders of the two empires, and as such, they were exposed to the cultural and architectural influences of both. In Sicily, Arab-Norman architecture combined Occidental features, such as the Classical pillars and friezes, with typical Arabic decorations and calligraphy. The principal Islamic architectural types are: the Mosque, the Tomb, the Palace and the Fort. From these four types, the vocabulary of Islamic architecture is derived and used for other buildings such as public baths, fountains and domestic architecture. Music Arabic music, while independent and flourishing in the 2010s, has a long history of interaction with many other regional musical styles and genres. It is an amalgam of the music of the Arab people in the Arabian Peninsula and the music of all the peoples that make up the Arab world today. Pre-Islamic Arab music was similar to that of Ancient Middle Eastern music. Most historians agree that there existed distinct forms of music in the Arabian peninsula in the pre-Islamic period between the 5th and 7th century CE. Arab poets of that "Jahili poets", meaning "the poets of the period of ignorance"—used to recite poems with a high notes. It was believed that Jinns revealed poems to poets and music to musicians. By the 11th century, Islamic Iberia had become a center for the manufacture of instruments. These goods spread gradually throughout France, influencing French troubadours, and eventually reaching the rest of Europe. The English words lute, rebec, and naker are derived from Arabic oud, rabab, and naqareh. A number of musical instruments used in classical music are believed to have been derived from Arabic musical instruments: the lute was derived from the Oud, the rebec (ancestor of violin) from the Maghreb rebab, the guitar from qitara, which in turn was derived from the Persian Tar, naker from naqareh, adufe from al-duff, alboka from al-buq, anafil from al-nafir, exabeba from al-shabbaba (flute), atabal (bass drum) from al-tabl, atambal from al-tinbal, the balaban, the castanet from kasatan, sonajas de azófar from sunuj al-sufr, the conical bore wind instruments, the xelami from the sulami or fistula (flute or musical pipe), the shawm and dulzaina from the reed instruments zamr and al-zurna, the gaita from the ghaita, rackett from iraqya or iraqiyya, geige (violin) from ghichak, and the theorbo from the tarab. During the 1950s and the 1960s, Arabic music began to take on a more Western tone – artists Umm Kulthum, Abdel Halim Hafez, and Shadia along with composers Mohamed Abd al-Wahab and Baligh Hamdi pioneered the use of western instruments in Egyptian music. By the 1970s several other singers had followed suit and a strand of Arabic pop was born. Arabic pop usually consists of Western styled songs with Arabic instruments and lyrics. Melodies are often a mix between Eastern and Western. Beginning in the mid-1980s, Lydia Canaan, musical pioneer widely regarded as the first rock star of the Middle East Spirituality Arab polytheism was the dominant religion in pre-Islamic Arabia. Gods and goddesses, including Hubal and the goddesses al-Lāt, Al-'Uzzá and Manāt, were worshipped at local shrines, such as the Kaaba in Mecca, whilst Arabs in the south, in what is today's Yemen, worshipped various gods, some of which represented the Sun or Moon. Different theories have been proposed regarding the role of Allah in Meccan religion. Many of the physical descriptions of the pre-Islamic gods are traced to idols, especially near the Kaaba, which is said to have contained up to 360 of them. Until about the fourth century, almost all Arabs practised polytheistic religions. Although significant Jewish and Christian minorities developed, polytheism remained the dominant belief system in pre-Islamic Arabia. The religious beliefs and practices of the nomadic bedouin were distinct from those of the settled tribes of towns such as Mecca. Nomadic religious belief systems and practices are believed to have included fetishism, totemism and veneration of the dead but were connected principally with immediate concerns and problems and did not consider larger philosophical questions such as the afterlife. Settled urban Arabs, on the other hand, are thought to have believed in a more complex pantheon of deities. While the Meccans and the other settled inhabitants of the Hejaz worshipped their gods at permanent shrines in towns and oases, the bedouin practised their religion on the move. Most notable Arab gods and goddesses: 'Amm, A'ra, Abgal, Allah, Al-Lat, Al-Qaum, Almaqah, Anbay, ʿAṯtar, Basamum, Dhu l-Khalasa, Dushara, Haukim, Hubal, Isāf and Nā'ila, Manaf, Manāt, Nasr, Nuha, Quzah, Ruda, Sa'd, Shams, Samas, Syn, Suwa', Ta'lab, Theandrios, al-‘Uzzá, Wadd, Ya'uq, Yaghūth, Yatha, Aglibol, Astarte, Atargatis, Baalshamin, Bēl, Bes, Ēl, Ilāh, Inanna/Ishtar, Malakbel, Nabū, Nebo, Nergal, Yarhibol. Philosophy The philosophical thought in the Arab world is heavily influenced by Arabic Philosophy. Schools of Arabic/Islamic thought include Avicennism and Averroism. The first great Arab thinker in the Islamic tradition is widely regarded to be al-Kindi (801–873 A.D.), a Neo-Platonic philosopher, mathematician and scientist who lived in Kufa and Baghdad (modern day Iraq). After being appointed by the Abbasid Caliphs to translate Greek scientific and philosophical texts into Arabic, he wrote a number of original treatises of his own on a range of subjects, from metaphysics and ethics to mathematics and pharmacology. Much of his philosophical output focuses on theological subjects such as the nature of God, the soul and prophetic knowledge. Doctrines of the Arabic philosophers of the 9th–12th century who influenced medieval Scholasticism in Europe. The Arabic tradition combines Aristotelianism and Neoplatonism with other ideas introduced through Islam. Influential thinkers include the non-Arabs al-Farabi and Avicenna. The Arabic philosophic literature was translated into Hebrew and Latin, this contributed to the development of modern European philosophy. The Arabic tradition was developed by Moses Maimonides and Ibn Khaldun. Science Arabic science underwent considerable development during the Middle Ages (8th to 13th centuries CE), a source of knowledge that later spread throughout Medieval Europe and greatly influenced both medical practice and education. The language of recorded science was Arabic. Scientific treatises were composed by thinkers originating from across the Muslim world. These accomplishments occurred after Muhammad united the Arab tribes and the spread of Islam beyond the Arabian peninsula. Within a century after Muhammed's death (632 CE), an empire ruled by Arabs was established. It encompassed a large part of the planet, stretching from southern Europe to North Africa to Central Asia and on to India. In 711 CE, Arab Muslims invaded southern Spain; al-Andalus was a center of Arabic scientific accomplishment. Soon after, Sicily too joined the greater Islamic world. Another center emerged in Baghdad from the Abbasids, who ruled part of the Islamic world during a historic period later characterized as the "Golden Age" (~750 to 1258 CE). This era can be identified as the years between 692 and 945, and ended when the caliphate was marginalized by local Muslim rulers in Baghdad – its traditional seat of power. From 945 onward until the sacking of Baghdad by the Mongols in 1258, the Caliph continued on as a figurehead, with power devolving more to local subordinates. The pious scholars of Islam, men and women collectively known as the ulama, were the most influential element of society in the fields of Sharia law, speculative thought and theology. Arabic scientific achievement is not as yet fully understood, but is very large. These achievements encompass a wide range of subject areas, especially mathematics, astronomy, and medicine. Other subjects of scientific inquiry included physics, alchemy and chemistry, cosmology, ophthalmology, geography and cartography, sociology, and psychology. Al-Battani was an astronomer, astrologer and mathematician of the Islamic Golden Age. His work is considered instrumental in the development of science and astronomy. One of Al-Battani's best-known achievements in astronomy was the determination of the solar year as being 365 days, 5 hours, 46 minutes and 24 seconds which is only 2 minutes and 22 seconds off. In mathematics, al-Battānī produced a number of trigonometrical relationships. Al-Zahrawi, regarded by many as the greatest surgeon of the middle ages. His surgical treatise "De chirurgia" is the first illustrated surgical guide ever written. It remained the primary source for surgical procedures and instruments in Europe for the next 500 years. The book helped lay the foundation to establish surgery as a scientific discipline independent from medicine, earning al-Zahrawi his name as one of the founders of this field. Other notable Arabic contributions include among other things: the pioneering of organic chemistry by Jābir ibn Hayyān, establishing the science of cryptology and cryptanalysis by al-Kindi, the development of analytic geometry by Ibn al-Haytham, who has been described as the "world's first true scientist", the discovery of the pulmonary circulation by Ibn al-Nafis, the discovery of the itch mite parasite by Ibn Zuhr, the first use of irrational numbers as an algebraic objects by Abū Kāmil, the first use of the positional decimal fractions by al-Uqlidisi, the development of the Arabic numerals and an early algebraic symbolism in the Maghreb, the Thabit number and Thābit theorem by Thābit ibn Qurra, the discovery of several new trigonometric identities by Ibn Yunus and al-Battani, the mathematical proof for Ceva's theorem by Ibn Hűd, the first accurate lunar model by Ibn al-Shatir, the invention of the torquetum by Jabir ibn Aflah, the invention of the universal astrolabe and the equatorium by al-Zarqali, the first description of the crankshaft by al-Jazari, the anticipation of the inertia concept by Averroes, the discovery of the physical reaction by Avempace, the identification of more than 200 new plants by Ibn al-Baitar the Arab Agricultural Revolution, and the Tabula Rogeriana, which was the most accurate world map in pre-modern times by al-Idrisi. The birth of the University institution can be traced to this development, as several universities and educational institutions of the Arab world such as the University of Al Quaraouiyine, Al Azhar University, and Al Zaytuna University are considered to be the oldest in the world. Founded by Fatima al Fihri in 859 as a mosque, the University of Al Quaraouiyine in Fez is the oldest existing, continually operating and the first degree awarding educational institution in the world according to UNESCO and Guinness World Records and is sometimes referred to as the oldest university. There are many scientific Arabic loanwords in Western European languages, including English, mostly via Old French. This includes traditional star names such as Aldebaran, scientific terms like alchemy (whence also chemistry), algebra, algorithm, alcohol, alkali, cipher, zenith, etc. Under Ottoman rule, cultural life and science in the Arab world declined. In the 20th and 21st centuries, Arabs who have won important science prizes include Ahmed Zewail and Elias Corey (Nobel Prize), Michael DeBakey and Alim Benabid (Lasker Award), Omar M. Yaghi (Wolf Prize), Huda Zoghbi (Shaw Prize), Zaha Hadid (Pritzker Prize), and Michael Atiyah (both Fields Medal and Abel Prize). Rachid Yazami was one of the co-inventors of the lithium-ion battery, and Tony Fadell was important in the development of the iPod and the iPhone. Theatre Arab theatre is a rich and diverse cultural form that encompasses a wide range of styles, genres, and historical influences. Its roots in the pre-Islamic era, when poetry, storytelling, and musical performances were the main forms of artistic expressionIt refers to theatrical performances that are created by Arab playwrights, actors, and directors. The roots of Arab theatre can be traced back to ancient Arabic poetry and storytelling, which often incorporated music and dance. In the early Arabic period, storytelling evolved into a more formalized art form that was performed in public gatherings and festivals. During the Islamic Golden Age in the 8th and 9th centuries, the city of Baghdad emerged as a hub of intellectual and artistic activity, including theatre. The court of the Abbasid Caliphate was home to many influential playwrights and performers, who helped to develop and popularize theatre throughout the Islamic world. Arab theatre has a long tradition of incorporating comedy and satire into its performances, often using humor to address social and political issues. Arab theatre encompasses a wide range of dramatic genres, including tragedy, melodrama, and historical plays. Many Arab playwrights have used drama to address contemporary issues, the role of women in Arab society, and the challenges facing young people in the modern world. In recent decades, many Arab theatre artists have pushed the boundaries of the form, experimenting with new styles and techniques. This has led to the emergence of a vibrant contemporary theatre scene in many Arab countries, with innovative productions and performances that challenge traditional notions of Arab identity and culture. Fashion Arab fashion and design have a rich history and cultural significance that spans centuries, each with its unique fashion and design traditions. One of the most notable aspects of Arab fashion is the use of luxurious fabrics and intricate embroidery. Traditional garments, such as the Abaya and Thobe, are often made from high-quality fabrics like silk, satin, brocade, and are embellished with intricate embroidery and beading. In recent years, Arab fashion has gained global recognition, with designers like Elie Saab, Zuhair Murad, and Reem Acra showcasing their designs on international runways. These designers incorporate traditional Arab design elements into their collections, such as ornate patterns, luxurious fabrics, and intricate embellishments. In addition to fashion, Arab design is also characterized by its intricate geometric patterns, calligraphy, and use of vibrant colors. Arabic art and architecture, with their intricate geometric patterns and motifs, have influenced Arab design for centuries. Arab designers also incorporate traditional motifs, such as the paisley and the arabesque, into their work. Overall, Arab fashion elements are rooted in the rich cultural heritage of the Arab world and continue to inspire designers today. Wedding and marriage Arabic weddings have changed greatly in the past 100 years. Original traditional Arabic weddings are supposed to be very similar to modern-day Bedouin weddings and rural weddings, and they are in some cases unique from one region to another, even within the same country. The practice of marrying of relatives is a common feature of Arab culture. In the Arab world today between 40% and 50% of all marriages are consanguineous or between close family members, though these figures may vary among Arab nations. In Egypt, around 40% of the population marry a cousin. A 1992 survey in Jordan found that 32% were married to a first cousin; a further 17.3% were married to more distant relatives. 67% of marriages in Saudi Arabia are between close relatives as are 54% of all marriages in Kuwait, whereas 18% of all Lebanese were between blood relatives. Due to the actions of Muhammad and the Rightly Guided Caliphs, marriage between cousins is explicitly allowed in Islam and the Quran itself does not discourage or forbid the practice. Nevertheless, opinions vary on whether the phenomenon should be seen as exclusively based on Islamic practices as a 1992 study among Arabs in Jordan did not show significant differences between Christian Arabs or Muslim Arabs when comparing the occurrence of consanguinity. Genetics Arabs are diverse genetically as a result of their intermarriage and mixing with indigenous people of the pre-Islamic Middle East and North Africa following the Islamic expansion. Genetic ancestry components related to the Arabian peninsula display an increasing frequency pattern from west to east over North African, a similar frequency pattern exist across northeastern Africa with decreasing genetic affinities to groups of the Arabian peninsula along the Nile river valley across Sudan and South Sudan the more they go south. This genetic cline of admixture is dated to the time of Arab expansion and immigration to north and northeast Africa. In the Levant, the introduction of Islam to the region and the conversion of the region’s population to it caused major rearrangements in populations' relations and affinities through admixture with "culturally similar but geographically remote populations" with whom they enjoyed a shared Islamic culture and Arabic culture and language, which led to "genetic similarities between remarkably distant populations like Jordanians, Moroccans, and Yemenis". A 2018 study of Arabs found that peninsular Arabs genetically showed two distinct clusters and that Arabs in general can be genetically stratified into four groups; the first consisting of Maghrebis along with the first Arabian peninsula cluster, which consists of Saudis, Kuwaitis and Yemenis, the second consisting of levantine Arabs (Palestinians, Lebanese, Syrians and Jordanians) along with Egyptians and Iraqis, the third compromising Sudanis and Comorians, and the fourth compromising the second Arabian peninsula cluster consisting of Omanis, Emiratis, and Bahrainis. The study confirmed the high genetic heterogeneity among Arabs, especially those of the Arabian peninsula. See also Arab Union Arab world List of Arabs Lists of Arab companies North African Arabs References Notes Citations Sources (2 volumes) Touma, Habib Hassan. The Music of the Arabs. Portland, Oregon: Amadeus P, 1996. . Lipinski, Edward. Semitic Languages: Outlines of a Comparative Grammar, 2nd ed., Orientalia Lovanensia Analecta: Leuven 2001 Kees Versteegh, The Arabic Language, Edinburgh University Press (1997) The Catholic Encyclopedia, Robert Appleton Company, 1907, Online Edition, K. Night 2003: article Arabia History of Arabic language(1894), Jelsoft Enterprises Ltd. The Arabic language, National Institute for Technology and Liberal Education web page (2006) Hooker, Richard. "Pre-Islamic Arabic Culture." WSU Web Site. 6 June 1999. Washington State University. Owen, Roger. "State Power and Politics in the Making of the Modern Middle East 3rd Ed" Page 57 Further reading Price-Jones, David. The Closed Circle: an Interpretation of the Arabs. Pbk. ed., with a new preface by the author. Chicago: I. R. Dee, 2002. xiv, 464 p. Ankerl, Guy. Coexisting Contemporary Civilizations: Arabo-Muslim, Bharati, Chinese, and Western. INU PRESS, Geneva, 2000. . External links www.LasPortal.org ArabCultureFund AFAC (archived 2 December 2016) Semitic-speaking peoples Ancient peoples of the Near East Ethnic groups in Africa Ethnic groups in North Africa Ethnic groups in the Arab world Ethnic groups in the Middle East Muslim communities in Africa Muslim communities in Asia

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https://en.wikipedia.org/wiki/Amstrad%20CPC

Amstrad CPC

The Amstrad CPC (short for Colour Personal Computer) is a series of 8-bit home computers produced by Amstrad between 1984 and 1990. It was designed to compete in the mid-1980s home computer market dominated by the Commodore 64 and the ZX Spectrum, where it successfully established itself primarily in the United Kingdom, France, Spain, and the German-speaking parts of Europe. The series spawned a total of six distinct models: The CPC 464, CPC 664, and CPC 6128 were highly successful competitors in the European home computer market. The later 464plus and 6128plus, intended to prolong the system's lifecycle with hardware updates, were considerably less successful, as was the attempt to repackage the plus hardware into a game console as the GX4000. The CPC models' hardware is based on the Zilog Z80A CPU, complemented with either 64 or 128 KB of RAM. Their computer-in-a-keyboard design prominently features an integrated storage device, either a compact cassette deck or 3-inch floppy disk drive. The main units were only sold bundled with either a colour, green-screen or monochrome monitor that doubles as the main unit's power supply. Additionally, a wide range of first and third-party hardware extensions such as external disk drives, printers, and memory extensions, was available. The CPC series was pitched against other home computers primarily used to play video games and enjoyed a strong supply of game software. The comparatively low price for a complete computer system with dedicated monitor, its high-resolution monochrome text and graphic capabilities and the possibility to run CP/M software also rendered the system attractive for business users, which was reflected by a wide selection of application software. During its lifetime, the CPC series sold approximately three million units. Models The original range The philosophy behind the CPC series was twofold, firstly the concept was of an "all-in-one", where the computer, keyboard and its data storage device were combined in a single unit and sold with its own dedicated display monitor. Most home computers at that time such as ZX Spectrum series, Commodore 64, and BBC Micro relied on the use of the domestic television set and a separately connected tape recorder or disk drive. In itself, the all-in-one concept was not new, having been seen before on business-oriented machines and the Commodore PET. Secondly, Amstrad founder Alan Sugar wanted the machine to resemble a "real computer, similar to what someone would see being used to check them in at the airport for their holidays", and for the machine to not look like "a pregnant calculator" – in reference presumably to the ZX81 and ZX Spectrum with their low cost, membrane-type keyboards. CPC 464 The CPC 464 was one of the most successful computers in Europe and sold more than two million units. The CPC 464 featured 64 KB RAM and an internal cassette deck. It was introduced in June 1984 in the UK. Initial suggested retail prices for the CPC 464 were £249.00/DM899.00 with a green screen and £359.00/DM1398.00 with a colour monitor. Following the introduction of the CPC 6128 in late 1985, suggested retail prices for the CPC 464 were cut by £50.00/DM100.00. In 1990, the 464plus replaced the CPC 464 in the model line-up, and production of the CPC 464 was discontinued. CPC 664 The CPC 664 features 64 KB RAM and an internal 3-inch floppy disk drive. It was introduced on 25 April 1985 in the UK. Initial suggested retail prices for the CPC 664 were £339.00/DM1198.00 with a green screen and £449.00/DM1998.00 with a colour monitor. After the successful release of the CPC 464, consumers were constantly asking for two improvements: more memory and an internal disk drive. For Amstrad, the latter was easier to realise. At the deliberately low-key introduction of the CPC 664, the machine was positioned not only as the lowest-cost disk system but even the lowest-cost CP/M 2.2 machine. In the Amstrad CPC product range the CPC 664 complemented the CPC 464 which was neither discontinued nor reduced in price. Compared to the CPC 464, the CPC 664's main unit has been significantly redesigned, not only to accommodate the floppy disk drive but also with a redesigned keyboard area. Touted as "ergonomic" by Amstrad's promotional material, the keyboard is noticeably tilted to the front with MSX-style cursor keys above the numeric keypad. Compared to the CPC 464's multicoloured keyboard, the CPC 664's keys are kept in a much quieter grey and pale blue colour scheme. The back of the CPC 664 main unit features the same connectors as the CPC 464, with the exception of an additional 12V power lead. Unlike the CPC 464's cassette tape drive that could be powered off the main unit's 5V voltage, the CPC 664's floppy disk drive requires an additional 12V voltage. This voltage had to be separately supplied by an updated version of the bundled green screen/colour monitor (GT-65 and CTM-644 respectively). The CPC 664 was only produced for approximately six months. In late 1985, when the CPC 6128 was introduced in Europe, Amstrad decided not to keep three models in the line-up, and production of the CPC 664 was discontinued. CPC 6128 The CPC 6128 features 128 KB RAM and an internal 3-inch floppy disk drive. Aside from various hardware and firmware improvements, one of the CPC 6128's most prominent features is the compatibility with the CP/M+ operating system that rendered it attractive for business uses. The CPC 6128 was released on 13 June 1985 and initially only sold in the US. Imported and distributed by Indescomp, Inc. of Chicago, it was the first Amstrad product to be sold in the United States, a market that at the time was traditionally hostile towards European computer manufacturers. Two months later, on 15 August 1985, it arrived in Europe and replaced the CPC 664 in the CPC model line-up. Initial suggested retail prices for the CPC 6128 were US$699.00/£299.00/DM1598.00 with a green screen and US$799.00/£399.00/DM2098.00 with a colour monitor. In 1990, the 6128plus replaced the CPC 6128 in the model line-up, and production of the CPC 6128 was discontinued. The plus range In 1990, confronted with a changing home computer market, Amstrad decided to refresh the CPC model range by introducing a new range variantly labelled plus or PLUS, 1990, or CPC+ range. The main goals were numerous enhancements to the existing CPC hardware platform, to restyle the casework to provide a contemporary appearance, and to add native support of cartridge media. The new model palette includes three variants, the 464plus and 6128plus computers and the GX4000 video game console. The "CPC" abbreviation was dropped from the model names. The redesign significantly enhanced the CPC hardware, mainly to rectify its previous shortcomings as a gaming platform. The redesigned video hardware allows for hardware sprites and soft scrolling, with a colour palette extended from a maximum of 16 colours (plus separately definable border) at one time from a choice of 27, increased to a maximum of 31 (16 for background and 15 for hardware sprites) out of 4096. The enhanced sound hardware offers automatic DMA transfer, allowing more complex sound effects with a significantly reduced processor overhead. Other hardware enhancements include the support of analogue joysticks, 8-bit printers, and ROM cartridges up to 4 Mbits. The new range of models was intended to be completely backwards compatible with the original CPC models. Its enhanced features are only available after a deliberately obscure unlocking mechanism has been triggered, thus preventing existing CPC software from accidentally invoking them. Despite the significant hardware enhancements, many viewed it as outdated, being based on an 8-bit CPU, and it failed to attract both customers and software producers who were moving towards systems such as the Commodore Amiga and Sega Mega Drive which was launched a few short months after the plus range. The plus range was a commercial failure, and production was discontinued shortly after its introduction in 1990. 464plus, 6128plus The 464plus and 6128plus models were intended as "more sophisticated and stylish" replacements of the CPC 464 and CPC 6128. Based on the redesigned plus hardware platform, they share the same base characteristics as their predecessors: The 464plus is equipped with 64 KB RAM and a cassette tape drive, the 6128plus features 128 KB RAM and a 3" floppy disk drive. Both models share a common case layout with a keyboard taken over from the CPC 6128 model, and the respective mass storage drive inserted in a case breakout. In order to simplify the EMC screening process, the edge connectors of the previous models have been replaced with micro-ribbon connectors as previously used on the German Schneider CPC 6128. As a result, a wide range of extensions for the original CPC range are connector-incompatible with the 464plus and 6128plus. In addition, the 6128plus does not have a tape socket for an external tape drive. The plus range is not equipped with an on-board ROM, and thus the 464plus and the 6128plus do not contain a firmware. Instead, Amstrad provided the firmware for both models via the ROM extension facility, contained on the included Burnin' Rubber and Locomotive BASIC cartridge. This resulted in reduced hardware localization cost (only some select key caps and case labels had to be localized) with the added benefit of a rudimentary copy protection mechanism (without a firmware present, the machine itself could not copy a game cartridge's content). As the enhanced V4 firmware's structural differences causes problems with some CPC software directly calling firmware functions by their memory addresses, Amstrad separately sold a cartridge containing the original CPC 6128's V3 firmware. Both the 464plus and the 6128plus were introduced to the public in September 1990. Initial suggested retail prices were / with a monochrome monitor and / with a colour monitor for the 464plus, and / with a monochrome monitor and / with a colour monitor for the 6128plus. GX4000 Developed as part of the plus range, the GX4000 was Amstrad's short-lived attempt to enter the video game consoles market. Sharing the plus range's enhanced hardware characteristics, it represents the bare minimum variant of the range without a keyboard or support for mass storage devices. It came bundled with 2 paddle controllers and the racing game Burnin' Rubber. Special models and clones CPC 472 During the August holidays of 1985, Spain briefly introduced an import tax of 15 000 pesetas () on computers containing 64 KB or less of RAM (Royal Decree 1215/1985 and 1558/1985), and a new law (Royal Decree 1250/1985) mandated that all computers sold in Spain must have a Spanish keyboard. To circumvent this, Amstrad's Spanish distributor Indescomp (later to become Amstrad Spain) created and distributed the CPC 472, a modified version of the CPC 464. Its main differences are a small additional daughter board containing a CPC 664 ROM chip and an 8 KB memory chip, and a keyboard with a ñ key (although some of them were temporarily manufactured without the ñ key). The sole purpose of the 8 KB memory chip (which is not electrically connected to the machine, so consequently rendered unusable) is to increase the machine's total memory specs to 72 KB in order to circumvent the import tax. Some months later, Spain joined the European Communities by the Treaty of Accession 1985 and the import tax was suppressed, so Amstrad added the ñ key for the 464 and production of the CPC472 was discontinued. KC compact The ("" - which means "small computer" - being a rather literal German translation of the English "microcomputer") is an unauthorized and unofficial clone of the Amstrad CPC built by East Germany's , part of , in October 1989. Although the machine included various substitutes and emulations of an Amstrad CPC's hardware, the machine is largely compatible with Amstrad CPC software. It is equipped with 64 KB of memory and a CPC 6128's firmware customized to the modified hardware, including a copy of Locomotive BASIC 1.1 modified in the startup banner only. The expansion port is a K 1520 bus slot. The KC compact is the last 8-bit computer introduced in East Germany. Due to the German reunification happening at the time of the release only a very small number of systems were sold. The KC compact can be emulated by free software JKCEMU. Aleste 520EX In 1993, Omsk, Russia based company Patisonic released the Aleste 520EX, a computer highly compatible with the Amstrad CPC 6128. It could also be switched into an MSX mode. An expansion board named Magic Sound allowed to play Scream Tracker files. Reception A BYTE columnist in January 1985 called the CPC 464 "the closest yet to filling" his criteria for a useful home computer, including good keyboard, 80-column text, inexpensive disk drive, and support for a mainstream operating system like CP/M. Hardware Processor The entire CPC series is based on the Zilog Z80; a processor, clocked at 4 MHz. In order to avoid the CPU and the video logic simultaneously accessing the shared main memory and causing video corruption ("snowing"), CPU memory access is constrained to occur on microsecond boundaries. This effectively pads every machine cycle to four clock cycles, causing a minor loss of processing power and resulting in what Amstrad estimated to be an "effective clock rate" of "approximately 3.3 MHz". Memory Amstrad CPCs are equipped with either 64 (CPC 464, CPC 664, 464plus, GX4000) or 128 (CPC 6128, 6128plus) KB of RAM. This base memory can be extended by up to 512 KB using memory expansions sold by third-party manufacturers, and by up to 4096 KB using experimental methods developed by hardware enthusiasts. Because the Z80 processor is only able to directly address 64 KB of memory, additional memory from the 128 KB models and memory expansions is made available using bank switching. Video Underlying a CPC's video output is the unusual pairing of a CRTC (Motorola 6845 or compatible) with a custom-designed gate array to generate a pixel display output. CPC 6128s later in production as well as the models from the plus range integrate both the CRTC and the gate array's functions with the system's ASIC. Three built-in display resolutions are available: 160×200 pixels with 16 colours ("Mode 0", 20 text columns), 320×200 pixels with 4 colours ("Mode 1", 40 text columns), and 640×200 pixels with 2 colours ("Mode 2", 80 text columns). Increased screen size can be achieved by reprogramming the CRTC. The original CPC video hardware supports a colour palette of 27 colours, generated from RGB colour space with each colour component assigned as either off, half on, or on (3 level RGB palette). The plus range extended the palette to 4096 colours, also generated from RGB with 4 bits each for red, green and blue (12-bit RGB). With the exception of the GX4000, all CPC models lack an RF television or composite video output and instead shipped with a 6-pin RGB DIN connector, also used by Acorn computers, to connect the supplied Amstrad monitor. This connector delivers a 1v p-p analogue RGB with a 50 Hz composite sync signal that, if wired correctly, can drive a 50 Hz SCART television. External adapters for RF television were available as a first-party hardware accessory. Audio The CPC uses the General Instrument AY-3-8912 sound chip, providing three channels, each configurable to generate square waves, white noise or both. A small array of hardware volume envelopes are available. Output is provided in mono by a small (4 cm) built-in loudspeaker with volume control, driven by an internal amplifier. Stereo output is provided through a headphones jack. It is possible to play back digital sound samples at a resolution of approximately 5-bit by sending a stream of values to the sound chip. This technique is very processor-intensive and hard to combine with any other processing. Examples are the title screens or other non-playable scenes of games like Chase H.Q., Meltdown, and RoboCop. The later Plus models incorporated a DMA engine in order to offload this processing. Floppy disk drive Amstrad uses Matsushita's 3" floppy disk drive [ref: CPCWiki], which was compatible with Hitachi's existing 3" floppy disk format. The chosen drive (built-in for later models) is a single-sided 40-track unit that requires the user to remove and flip the disk to access the other side. Each side has its own independent write-protect switch. The sides are termed "A" and "B", with each one commonly formatted to 180 KB (in AMSDOS format, comprising 2 KB directory and 178 KB storage) for a total of 360 KB per disk. The interface with the drives is an NEC 765 FDC, used for the same purpose in the IBM PC/XT, PC/AT and PS/2 machines. Its features are not fully used in order to cut costs, namely DMA transfers and support for single density disks; they were formatted as double density using modified frequency modulation. Discs were shipped in a paper sleeve or a hard plastic case resembling a compact disc "jewel" case. The casing is thicker and more rigid than that of 3.5 inch diskettes, and designed to be mailed without any additional packaging. A sliding metal cover to protect the media surface is internal to the casing and latched, unlike the simple external sliding cover of Sony's version. They were significantly more expensive than both 5.25 inch and 3.5 inch alternatives. This, combined with their low nominal capacities and their essentially proprietary nature, led to the format being discontinued shortly after the CPC itself was discontinued. Apart from Amstrad's other 3-inch machines (the PCW and the ZX Spectrum +3), the few other computer systems to use them included the Sega SF-7000 and CP/M systems such as the Tatung Einstein and Osborne machines. They also found use on embedded systems. The Shugart-standard interface means that Amstrad CPC machines are able to use standard 3", 3½" or 5¼" drives as their second drive. Programs such as ROMDOS and ParaDOS extend the standard AMSDOS system to provide support for double-sided, 80-track formats, enabling up to 800 KB to be stored on a single disk. The 3-inch disks themselves are usually known as "discs" on the CPC, following the spelling on the machine's plastic casing and conventional British English spelling. Expansion The hardware and firmware was designed to be able to access software provided on external ROMs. Each ROM has to be a 16 KB block and is switched in and out of the memory space shared with the video RAM. The Amstrad firmware is deliberately designed so that new software could be easily accessed from these ROMs. Popular applications were marketed on ROM, particularly word processing and programming utility software (examples are Protext and Brunword of the former, and the MAXAM assembler of the latter type). Such extra ROM chips do not plug directly into the CPC itself, but into extra plug-in "rom boxes" which contain sockets for the ROM chips and a minimal amount of decoding circuitry for the main machine to be able to switch between them. These boxes were either marketed commercially or could be built by competent hobbyists and they attached to the main expansion port at the back of the machine. Software on ROM loads much faster than from disc or tape and the machine's boot-up sequence was designed to evaluate ROMs it found and optionally hand over control of the machine to them. This allows significant customisation of the functionality of the machine, something that enthusiasts exploited for various purposes. However, the typical users would probably not be aware of this added ROM functionality unless they read the CPC press, as it is not described in the user manual and was hardly ever mentioned in marketing literature. It is, however, documented in the official Amstrad firmware manual. The machines also feature a 9-pin Atari joystick port that will either directly take one joystick, or two joysticks by use of a splitter cable. Peripherals RS232 serial adapters Amstrad issued two RS-232-C D25 serial interfaces, attached to the expansion connector on the rear of the machine, with a through-connector for the CPC 464 disk drive or other peripherals. The original interface came with a Book of Spells for facilitating data transfer between other systems using a proprietary protocol in the device's own ROM, as well as terminal software to connect to British Telecom's Prestel service. A separate version of the ROM was created for the U.S. market due to the use of the commands "|SUCK" and "|BLOW", which were considered unacceptable there. Software and hardware limitations in this interface led to its replacement with an Amstrad-branded version of a compatible alternative by Pace. Serial interfaces were also available from third-party vendors such as KDS Electronics and Cirkit. Software BASIC and operating system Like most home computers at the time, the CPC has its OS and a BASIC interpreter built in as ROM. It uses Locomotive BASIC - an improved version of Locomotive Software's Z80 BASIC for the BBC Micro co-processor board. It is particularly notable for providing easy access to the machine's video and audio resources in contrast to the POKE commands required on generic Microsoft implementations. Other unusual features include timed event handling with the AFTER and EVERY commands, and text-based windowing. CP/M Digital Research's CP/M operating system was supplied with the 664 and 6128 disk-based systems, and the DDI-1 disk expansion unit for the 464. 64k machines shipped with CP/M 2.2 alone, while the 128k machines also include CP/M 3.1. The compact CP/M 2.2 implementation is largely stored on the boot sectors of a 3" disk in what was called "System format"; typing |CPM from Locomotive BASIC would load code from these sectors, making it a popular choice for custom game loading routines. The CP/M 3.1 implementation is largely in a separate file which is in turn loaded from the boot sector. Much public domain CP/M software was made available for the CPC, from word-processors such as VDE to complete bulletin board systems such as ROS. Other languages Although it was possible to obtain compilers for Locomotive BASIC, C and Pascal, the majority of the CPC's software was written in native Z80 assembly language. Popular assemblers were Hisoft's Devpac, Arnor's Maxam, and (in France) DAMS. Disk-based CPC (not Plus) systems shipped with an interpreter for the educational language LOGO, booted from CP/M 2.2 but largely CPC-specific with much code resident in the AMSDOS ROM; 6128 machines also include a CP/M 3.1, non-ROM version. A C compiler was also written and made available for the European market through Tandy Europe, by Micro Business products. Roland In an attempt to give the CPC a recognisable mascot, a number of games by Amstrad's in-house software publisher Amsoft have been tagged with the Roland name. However, as the games had not been designed around the Roland character and only had the branding added later, the character design varies immensely, from a spiky-haired blonde teenager (Roland Goes Digging) to a white cube with legs (Roland Goes Square Bashing) or a mutant flea (Roland in the Caves). The only two games with similar gameplay and main character design are Roland in Time and its sequel Roland in Space. The Roland character was named after Roland Perry, one of the lead designers of the original CPC range. Schneider Computer Division In order to market its computers in Germany, Austria, and Switzerland where Amstrad did not have any distribution structures, Amstrad entered a partnership with Schneider Rundfunkwerke AG, a German company that - very much like Amstrad itself - was previously only known for value-priced audio products. In 1984, Schneider's Schneider Computer Division daughter company was created specifically for the task, and the complete Amstrad CPC line-up was branded and sold as Schneider CPC. Although they are based on the same hardware, the Schneider CPC models differ from the Amstrad CPC models in several details. Most prominently, the Schneider CPC 464 and CPC 664 keyboards featured grey instead of coloured keys, but still in the original British keyboard layout. To achieve a German "QWERTZ" keyboard layout, Schneider marketed a small software program to reassign the keys as well as sticker labels for the keys. In order to conform with stricter German EMC regulations, the complete Schneider CPC line-up is equipped with an internal metal shielding. For the same reason, the Schneider CPC 6128 features micro ribbon type connectors instead of edge connectors. Both the greyscale keyboard and the micro ribbon connectors found their way up into the design of later Amstrad CPC models. In 1988, after Schneider refused to market Amstrad's AT-compatible computer line, the cooperation ended. Schneider went on to sell the remaining stock of Schneider CPC models and used their now well-established market position to introduce its own PC designs. With the formation of its German daughter company Amstrad GmbH to distribute its product lines including the CPC 464 and CPC 6128, Amstrad attempted but ultimately failed to establish their own brand in the German-speaking parts of Europe. Community The Amstrad CPC enjoyed a strong and long lifetime, mainly due to the machines use for businesses as well as gaming. Dedicated programmers continued working on the CPC range, even producing graphical user interface (GUI) operating systems such as SymbOS. Internet sites devoted to the CPC have appeared from around the world featuring forums, news, hardware, software, programming and games. CPC Magazines appeared during the 1980s including publications in countries such as Britain, France, Spain, Germany, Denmark, Australia, and Greece. Titles included the official Amstrad Computer User publication, as well as independent titles like Amstrad Action, Amtix!, Computing with the Amstrad CPC, CPC Attack, Australia's The Amstrad User, France's Amstrad Cent Pour Cent and Amstar. Following the CPC's end of production, Amstrad gave permission for the CPC ROMs to be distributed freely as long as the copyright message is not changed and that it is acknowledged that Amstrad still holds copyright, giving emulator authors the possibility to ship the CPC firmware with their programs. Influence on other Amstrad machines Amstrad followed their success with the CPC 464 by launching the Amstrad PCW word-processor range, another Z80-based machine with a 3" disk drive and software by Locomotive Software. The PCW was originally developed to be partly compatible with an improved version of the CPC (ANT, or Arnold Number Two - the CPC's development codename was Arnold). However, Amstrad decided to focus on the PCW, and the ANT project never came to market. On 7 April 1986, Amstrad announced it had bought from Sinclair Research "...the worldwide rights to sell and manufacture all existing and future Sinclair computers and computer products, together with the Sinclair brand name and those intellectual property rights where they relate to computers and computer-related products." which included the ZX Spectrum, for £5 million. This included Sinclair's unsold stock of Sinclair QLs and Spectrums. Amstrad made more than £5 million on selling these surplus machines alone. Amstrad launched two new variants of the Spectrum: the ZX Spectrum +2, based on the ZX Spectrum 128, with a built-in tape drive (like the CPC 464) and, the following year, the ZX Spectrum +3, with a built-in floppy disk drive (similar to the CPC 664 and 6128), taking the 3" discs that Amstrad CPC machines used. Production Timeline See also Amstrad CPC character set Amstrad CP/M Plus character set List of Amstrad CPC emulators List of Amstrad CPC games GX4000 SymbOS (multitasking operating system) Notes and references External links CPC-Wiki (CPC specific Wiki containing further information) Unofficial Amstrad WWW Resource New OS for the CPC Computer-related introductions in 1984 CPC Z80-based home computers Computers designed in the United Kingdom

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https://en.wikipedia.org/wiki/Abdulaziz%20al-Omari

Abdulaziz al-Omari

Abdulaziz al-Omari (, , also transliterated as Alomari or al-Umari; 28 May 1979 – 11 September 2001) was a Saudi terrorist hijacker who was one of five hijackers of American Airlines Flight 11 as part of the 11 September attacks in 2001. Prior to the terrorist attack, al-Omari was an airport security guard and imam. Al-Omari arrived in the United States in June 2001, on a tourist visa, obtained through the Visa Express program. On 11 September 2001, al-Omari boarded American Airlines Flight 11 and assisted in the hijacking of the plane, which was crashed into the North Tower of the World Trade Center, as part of the coordinated attacks. Early life and education Little is known about al-Omari's life, and it is unclear whether some information refers to Omari or another person by that name. He had used the birth date 28 May 1979. It is alleged al-Omari graduated with honors from high school, attained a degree from Imam Muhammad ibn Saud Islamic University, was married and had a daughter briefly before the attacks. Career Al-Omari is alleged to have often served as an imam at his mosque in Saudi Arabia and is believed by American authorities to have been a student of Saudi cleric Sulaiman Al-Alwan, whose mosque is located in Al-Qassim Province. According to Walid bin Attash, al-Omari was one of a group of future hijackers who provided security at Kandahar airport after their basic training at an al-Qaeda camp. During the 2000 Al Qaeda Summit in Kuala Lumpur, American authorities state that immigration records show that a person named Abdulaziz al-Omari was visiting the country, although they say they are not sure that this was the same person. In the autumn of 2001, after the 11 September attacks, al Jazeera television broadcast a tape they claim was made by al-Omari. The speaker made a farewell suicide video. In it he read, "I am writing this with my full conscience and I am writing this in expectation of the end, which is near. . . God praise everybody who trained and helped me, namely the leader Sheikh Osama bin Laden." According to FBI director Robert Mueller and the 9/11 Commission, al-Omari entered the United States through a Dubai flight on 29 June 2001, with Salem al-Hazmi, landing in New York. He had used the controversial Visa Express program to gain entry. He apparently stayed with several other hijackers in Paterson, New Jersey, before moving to his own place at 4032 57th Terrace, Vero Beach, Florida. On his rental agreement form for that house, al-Omari gave two license-plates authorized to park in his space, one of which was registered to Atta. Al-Omari obtained a fake United States ID card from All Services Plus in Passaic County, New Jersey, which was in the business of selling fake documents, including another to Khalid al-Mihdhar. He was married and had a daughter. September 11 attacks On 10 September 2001, Mohamed Atta picked up al-Omari from the Milner Hotel in Boston, Massachusetts, and the two drove their rented Nissan car to a Comfort Inn in South Portland, Maine, where they spent the night in room 232. It was initially reported that Adnan and Ameer Bukhari were the two hijackers who had rented and driven the car. In the early hours of 11 September, they boarded a commuter flight back to Boston to connect to American Airlines Flight 11. American 11 was hijacked 15 minutes after the flight departed by al-Omari and four other hijackers, which allowed trained pilot Mohamed Atta to crash the Boeing 767 into the North Tower of the World Trade Center as part of an attack that killed thousands of people. Mistaken identity allegations Controversy over the identity of al-Omari erupted shortly after the attacks. At first, the FBI had named Abdul Rahman al-Omari, a pilot for Saudi Arabian Airlines, as the pilot of Flight 11. It was quickly shown that this person was still alive, and the FBI issued an apology. It was also quickly determined that Mohamed Atta was the pilot among the hijackers. The FBI then named Abdulaziz al-Omari as a hijacker. A man with the same name as those given by the FBI turned up alive in Saudi Arabia, saying that he had studied at the University of Denver and his passport was stolen there in 1995. The name, origin, birth date, and occupation were released by the FBI, but the picture was not of him. "I couldn't believe it when the FBI put me on their list", he said. "They gave my name and my date of birth, but I am not a suicide bomber. I am here. I am alive. I have no idea how to fly a plane. I had nothing to do with this." See also PENTTBOM Hijackers in the 11 September attacks References External links The Final 9/11 Commission Report portal.telegraph.co.uk (Article which reports that the Saudi Arabian Airlines pilot named Omari was not involved with the terrorist attacks) 1979 births 2001 deaths American Airlines Flight 11 Participants in the September 11 attacks People from Al-Bahah Province Saudi Arabian al-Qaeda members Saudi Arabian mass murderers

2204

https://en.wikipedia.org/wiki/Arabic%20alphabet

Arabic alphabet

The Arabic alphabet (, or , ), or Arabic abjad, is the Arabic script as specifically codified for writing the Arabic language. It is written from right-to-left in a cursive style, and includes 28 letters, of which most have contextual letterforms. The Arabic alphabet is considered an abjad, with only consonants required to be written; due to its optional use of diacritics to notate vowels, it is considered an impure abjad. Consonants The basic Arabic alphabet contains 28 letters. Forms using the Arabic script to write other languages added and removed letters: for example Persian, Ottoman Turkish, Kurdish, Urdu, Sindhi, Azerbaijani, Malay, Pashto, Punjabi, Uyghur, Arwi and Arabi Malayalam all have additional letters in their alphabets. There are no distinct upper and lower case letterforms. Many letters look similar but are distinguished from one another by dots () above or below their central part (). These dots are an integral part of a letter, since they distinguish between letters that represent different sounds. For example, the Arabic letters , , and have the same basic shape, but with one dot added below, two dots added above, and three dots added above respectively. The letter also has the same form in initial and medial forms, with one dot added above, though it is somewhat different in its isolated and final forms. Both printed and written Arabic are cursive, with most letters within a word directly joined to adjacent letters. Alphabetical order There are two main collating sequences ('alphabetical orderings') for the Arabic alphabet: , and . The original order derives from that used by the Phoenician alphabet, and is therefore reminiscent of the orderings of other alphabets, such as those in Hebrew and Greek. With this ordering, letters are also used as numbers known as abjad numerals, possessing the same numerological codes as in Hebrew gematria and Greek isopsephy. The or order is used when sorting lists of words and names, such as in phonebooks, classroom lists, and dictionaries. The ordering groups letters by the graphical similarity of the glyphs' shapes. Abjadi The order is not a simple correspondence with the earlier north Semitic alphabetic order, as it has a position corresponding to the Aramaic letter samek , which has no cognate letter in the Arabic alphabet historically. The loss of was compensated for by: In the Mashriqi abjad sequence, the letter shin was split into two Arabic letters, and , the latter of which took the place of . In the Maghrebi abjad sequence, the letter was split into two independent Arabic letters, and , with the latter taking the place of . The six other letters that do not correspond to any north Semitic letter are placed at the end. This is commonly vocalized as follows: . Another vocalization is: This can be vocalized as: Modern dictionaries and other reference books do not use the order to sort alphabetically; instead, the newer order is used wherein letters are partially grouped together by similarity of shape. The order is never used as numerals. In the order (replaced recently by the Mashriqi order, (though still used in many Quranic schools in Algeria) the sequence is: In Abu Muhammad al-Hasan al-Hamdani's encyclopedia , the letter sequence is: Letter forms The Arabic alphabet is always cursive and letters vary in shape depending on their position within a word. Letters can exhibit up to four distinct forms corresponding to an initial, medial (middle), final, or isolated position (IMFI). While some letters show considerable variations, others remain almost identical across all four positions. Generally, letters in the same word are linked together on both sides by short horizontal lines, but six letters () can only be linked to their preceding letter. For example, (Ararat) has only isolated forms because each letter cannot be connected to its following one. In addition, some letter combinations are written as ligatures (special shapes), notably , which is the only mandatory ligature (the un-ligated combination is considered difficult to read). Table of basic letters Notes See the article Romanization of Arabic for details on various transliteration schemes. Arabic language speakers may usually not follow a standardized scheme when transcribing words or names. Some Arabic letters which do not have an equivalent in English (such as ق) are often spelled as numbers when Romanized. Also names are regularly transcribed as pronounced locally, not as pronounced in Literary Arabic (if they were of Arabic origin). Regarding pronunciation, the phonemic values given are those of Modern Standard Arabic, which is taught in schools and universities. In practice, pronunciation may vary considerably from region to region. For more details concerning the pronunciation of Arabic, consult the articles Arabic phonology and varieties of Arabic. The names of the Arabic letters can be thought of as abstractions of an older version where they were meaningful words in the Proto-Semitic language. Names of Arabic letters may have quite different names popularly. Six letters () do not have a distinct medial form and have to be written with their final form without being connected to the next letter. Their initial form matches the isolated form. The following letter is written in its initial form, or isolated form if it is the final letter in the word. The letter originated in the Phoenician alphabet as a consonant-sign indicating a glottal stop. Today it has lost its function as a consonant, and, together with and , is a mater lectionis, a consonant sign standing in for a long vowel (see below), or as support for certain diacritics ( and ). Arabic currently uses a diacritic sign, , called , to denote the glottal stop , written alone or with a carrier: alone: with a carrier: (above or under an ), (above a ), (above a dotless or ). In academic work, the () is transliterated with the modifier letter right half ring (ʾ), while the modifier letter left half ring (ʿ) transliterates the letter (), which represents a different sound, not found in English. The has a single form, since it is never linked to a preceding or following letter. However, it is sometimes combined with a , , or , and in that case the carrier behaves like an ordinary , , or . Variations Alif Modified letters The following are not individual letters, but rather different contextual variants of some of the Arabic letters. Ligatures The use of ligature in Arabic is common. There is one compulsory ligature, that for ل + ا, which exists in two forms. All other ligatures, of which there are many, are optional. A more complex ligature that combines as many as seven distinct components is commonly used to represent the word . The only ligature within the primary range of Arabic script in Unicode (U+06xx) is + . This is the only one compulsory for fonts and word-processing. Other ranges are for compatibility to older standards and contain other ligatures, which are optional. + Note: Unicode also has in its Presentation Form B FExx range a code for this ligature. If your browser and font are configured correctly for Arabic, the ligature displayed above should be identical to this one, U+FEFB ARABIC LIGATURE LAM WITH ALEF ISOLATED FORM: U+0640 ARABIC TATWEEL + + Note: Unicode also has in its Presentation Form B U+FExx range a code for this ligature. If your browser and font are configured correctly for Arabic, the ligature displayed above should be identical to this one: U+FEFC ARABIC LIGATURE LAM WITH ALEF FINAL FORM Another ligature in the Unicode Presentation Form A range U+FB50 to U+FDxx is the special code for glyph for the ligature ("God"), U+FDF2 ARABIC LIGATURE ALLAH ISOLATED FORM: This is a work-around for the shortcomings of most text processors, which are incapable of displaying the correct vowel marks for the word in Koran. Because Arabic script is used to write other texts rather than Koran only, rendering + + as the previous ligature is considered faulty. If one of a number of the fonts (Noto Naskh Arabic, mry_KacstQurn, KacstOne, Nadeem, DejaVu Sans, Harmattan, Scheherazade, Lateef, Iranian Sans, Baghdad, DecoType Naskh) is installed on a computer (Iranian Sans is supported by Wikimedia web-fonts), the word will appear without diacritics. + + = LILLĀH (meaning "to Allāh [only to God]")   or   لله + + + = ALLĀH (the Arabic word for "god")   or   الله + + + U+0651 ARABIC SHADDA + U+0670 ARABIC LETTER SUPERSCRIPT ALEF + اللّٰه   (DejaVu Sans and KacstOne don't show the added superscript Alef) An attempt to show them on the faulty fonts without automatically adding the gemination mark and the superscript alif, although may not display as desired on all browsers, is by adding the U+200d (Zero width joiner) after the first or second ( +) + + U+200d ZERO WIDTH JOINER +   ‎ Gemination Gemination is the doubling of a consonant. Instead of writing the letter twice, Arabic places a W-shaped sign called , above it. Note that if a vowel occurs between the two consonants the letter will simply be written twice. The diacritic only appears where the consonant at the end of one syllable is identical to the initial consonant of the following syllable. (The generic term for such diacritical signs is ). Nunation Nunation ( ) is the addition of a final   to a noun or adjective. The vowel before it indicates grammatical case. In written Arabic nunation is indicated by doubling the vowel diacritic at the end of the word. Vowels Users of Arabic usually write long vowels but omit short ones, so readers must utilize their knowledge of the language in order to supply the missing vowels. However, in the education system and particularly in classes on Arabic grammar these vowels are used since they are crucial to the grammar. An Arabic sentence can have a completely different meaning by a subtle change of the vowels. This is why in an important text such as the the three basic vowel signs (see below) are mandated, like the ḥarakāt and all the other diacritics or other types of marks, for example the cantillation signs. Short vowels In the Arabic handwriting of everyday use, in general publications, and on street signs, short vowels are typically not written. On the other hand, copies of the cannot be endorsed by the religious institutes that review them unless the diacritics are included. Children's books, elementary school texts, and Arabic-language grammars in general will include diacritics to some degree. These are known as "vocalized" texts. Short vowels may be written with diacritics placed above or below the consonant that precedes them in the syllable, called . All Arabic vowels, long and short, follow a consonant; in Arabic, words like "Ali" or "alif", for example, start with a consonant: , . Long vowels In the fully vocalized Arabic text found in texts such as Quran, a long following a consonant other than a is written with a short sign () on the consonant plus an after it; long is written as a sign for short () plus a ; and long as a sign for short () plus a . Briefly, = ; = ; and = . Long following a may be represented by an or by a free followed by an (two consecutive s are never allowed in Arabic). The table below shows vowels placed above or below a dotted circle replacing a primary consonant letter or a sign. For clarity in the table, the primary letters on the left used to mark these long vowels are shown only in their isolated form. Most consonants do connect to the left with , and written then with their medial or final form. Additionally, the letter in the last row may connect to the letter on its left, and then will use a medial or initial form. Use the table of primary letters to look at their actual glyph and joining types. In unvocalized text (one in which the short vowels are not marked), the long vowels are represented by the vowel in question: , , or . Long vowels written in the middle of a word of unvocalized text are treated like consonants with a (see below) in a text that has full diacritics. Here also, the table shows long vowel letters only in isolated form for clarity. Combinations and are always pronounced and respectively. The exception is the suffix in verb endings where is silent, resulting in or . In addition, when transliterating names and loanwords, Arabic language speakers write out most or all the vowels as long ( with , and with , and and with ), meaning it approaches a true alphabet. Diphthongs The diphthongs and are represented in vocalized text as follows: Vowel omission An Arabic syllable can be open (ending with a vowel) or closed (ending with a consonant): open: CV [consonant-vowel] (long or short vowel) closed: CVC (short vowel only) A normal text is composed only of a series of consonants plus vowel-lengthening letters; thus, the word qalb, "heart", is written qlb, and the word qalaba "he turned around", is also written qlb. To write qalaba without this ambiguity, we could indicate that the l is followed by a short a by writing a fatḥah above it. To write qalb, we would instead indicate that the l is followed by no vowel by marking it with a diacritic called sukūn (), like this: . This is one step down from full vocalization, where the vowel after the q would also be indicated by a fatḥah: . The Qurʾān is traditionally written in full vocalization. The long i sound in some editions of the Qur’ān is written with a kasrah followed by a diacritic-less y, and long u by a ḍammah followed by a bare w. In others, these y and w carry a sukūn. Outside of the Qur’ān, the latter convention is extremely rare, to the point that y with sukūn will be unambiguously read as the diphthong , and w with sukūn will be read . For example, the letters can be read like English meel or mail, or (theoretically) also like mayyal or mayil. But if a sukūn is added on the y then the m cannot have a sukūn (because two letters in a row cannot be sukūnated), cannot have a ḍammah (because there is never an uy sound in Arabic unless there is another vowel after the y), and cannot have a kasrah (because kasrah before sukūnated y is never found outside the Qur’ān), so it must have a fatḥah and the only possible pronunciation is (meaning mile, or even e-mail). By the same token, m-y-t with a sukūn over the y can be mayt but not mayyit or meet, and m-w-t with a sukūn on the w can only be mawt, not moot (iw is impossible when the w closes the syllable). Vowel marks are always written as if the i‘rāb vowels were in fact pronounced, even when they must be skipped in actual pronunciation. So, when writing the name Aḥmad, it is optional to place a sukūn on the ḥ, but a sukūn is forbidden on the d, because it would carry a ḍammah if any other word followed, as in Aḥmadu zawjī "Ahmad is my husband". Another example: the sentence that in correct literary Arabic must be pronounced Aḥmadu zawjun shirrīr "Ahmad is a wicked husband", is usually mispronounced (due to influence from vernacular Arabic varieties) as Aḥmad zawj shirrīr. Yet, for the purposes of Arabic grammar and orthography, is treated as if it were not mispronounced and as if yet another word followed it, i.e., if adding any vowel marks, they must be added as if the pronunciation were Aḥmadu zawjun sharrīrun with a tanwīn 'un' at the end. So, it is correct to add an un tanwīn sign on the final r, but actually pronouncing it would be a hypercorrection. Also, it is never correct to write a sukūn on that r, even though in actual pronunciation it is (and in correct Arabic MUST be) sukūned. Of course, if the correct i‘rāb is a sukūn, it may be optionally written. ٰٰ The sukūn is also used for transliterating words into the Arabic script. The Persian word (mâsk, from the English word "mask"), for example, might be written with a sukūn above the to signify that there is no vowel sound between that letter and the . Additional letters Regional variations Some letters take a traditionally different form in specific regions: Non-native letters to Standard Arabic Some modified letters are used to represent non-native sounds of Modern Standard Arabic. These letters are used in transliterated names, loanwords and dialectal words. is considered a native phoneme/allophone in some dialects, e.g. Kuwaiti and Iraqi dialects. is considered a native phoneme (instead of ) in a number of Levantine and North African dialects and as an allophone in others. is considered a native phoneme/allophone in most modern Arabic dialects. Used in languages other than Arabic Numerals There are two main kinds of numerals used along with Arabic text; Western Arabic numerals and Eastern Arabic numerals. In most of present-day North Africa, the usual Western Arabic numerals are used. Like Western Arabic numerals, in Eastern Arabic numerals, the units are always right-most, and the highest value left-most. Eastern Arabic numbers are written from left to right. Letters as numerals In addition, the Arabic alphabet can be used to represent numbers (Abjad numerals). This usage is based on the order of the alphabet. is 1, is 2, is 3, and so on until = 10, = 20, = 30, ..., = 200, ..., = 1000. This is sometimes used to produce chronograms. History The Arabic alphabet can be traced back to the Nabataean script used to write Nabataean Aramaic. The first known text in the Arabic alphabet is a late fourth-century inscription from 50 km east of in Jordan, but the first dated one is a trilingual inscription at Zebed in Syria from 512. However, the epigraphic record is extremely sparse, with only five certainly pre-Islamic Arabic inscriptions surviving, though some others may be pre-Islamic. Later, dots were added above and below the letters to differentiate them. (The Aramaic language had fewer phonemes than the Arabic, and some originally distinct Aramaic letters had become indistinguishable in shape, so that in the early writings 15 distinct letter-shapes had to do duty for 29 sounds; cf. the similarly ambiguous Book Pahlavi.) The first surviving document that definitely uses these dots is also the first surviving Arabic papyrus (PERF 558), dated April 643, although they did not become obligatory until much later. Important texts were and still are frequently memorized, especially in Qurʾan memorization. Later still, vowel marks and the hamzah were introduced, beginning some time in the latter half of the 7th century, preceding the first invention of Syriac and Tiberian vocalizations. Initially, this was done by a system of red dots, said to have been commissioned in the Umayyad era by Abu al-Aswad al-Du'ali, a dot above = , a dot below = , a dot on the line = , and doubled dots indicated nunation. However, this was cumbersome and easily confusable with the letter-distinguishing dots, so about 100 years later, the modern system was adopted. The system was finalized around 786 by al-Khalil ibn Ahmad al-Farahidi. Arabic printing Medieval Arabic blockprinting flourished from the 10th century until the 14th. It was devoted only to very small texts, usually for use in amulets. In 1514, following Johannes Gutenberg's invention of the printing press in 1450, Gregorio de Gregorii, a Venetian, published an entire prayer-book in Arabic script; it was entitled Kitab Salat al-Sawa'i and was intended for eastern Christian communities. Between 1580 and 1586, type designer Robert Granjon designed Arabic typefaces for Cardinal Ferdinando de' Medici, and the Medici Oriental Press published many Christian prayer and scholarly Arabic texts in the late 16th century. Maronite monks at Maar Quzhay Monastery on Mount Lebanon published the first Arabic books to use movable type in the Middle East. The monks transliterated the Arabic language using Syriac script. Although Napoleon generally receives credit for introducing the printing press to Egypt during his invasion of that country in 1798, and though he did indeed bring printing presses and Arabic presses to print the French occupation's official newspaper Al-Tanbiyyah "The Courier", printing in the Arabic language started several centuries earlier. A goldsmith (like Gutenberg) designed and implemented an Arabic-script movable-type printing-press in the Middle East. The Lebanese Melkite monk Abdallah Zakher set up an Arabic printing press using movable type at the monastery of Saint John at the town of Dhour El Shuwayr in Mount Lebanon, the first homemade press in Lebanon using Arabic script. He personally cut the type molds and did the founding of the typeface. The first book came off his press in 1734; this press continued in use until 1899. Computers The Arabic alphabet can be encoded using several character sets, including ISO-8859-6, Windows-1256 and Unicode (see links in Infobox above), latter thanks to the "Arabic segment", entries U+0600 to U+06FF. However, none of the sets indicates the form that each character should take in context. It is left to the rendering engine to select the proper glyph to display for each character. Each letter has a position-independent encoding in Unicode, and the rendering software can infer the correct glyph form (initial, medial, final or isolated) from its joining context. That is the current recommendation. However, for compatibility with previous standards, the initial, medial, final and isolated forms can also be encoded separately. Unicode As of Unicode , the Arabic script is contained in the following blocks: Arabic (0600–06FF, 256 characters) Arabic Supplement (0750–077F, 48 characters) Arabic Extended-A (08A0–08FF, 96 characters) Arabic Extended-B (0870–089F, 41 characters) Arabic Extended-C (10EC0–10EFF, 3 characters) Arabic Presentation Forms-A (FB50–FDFF, 631 characters) Arabic Presentation Forms-B (FE70–FEFF, 141 characters) Rumi Numeral Symbols (10E60–10E7F, 31 characters) Indic Siyaq Numbers (1EC70–1ECBF, 68 characters) Ottoman Siyaq Numbers (1ED00–1ED4F, 61 characters) Arabic Mathematical Alphabetic Symbols (1EE00—1EEFF, 143 characters) The basic Arabic range encodes the standard letters and diacritics but does not encode contextual forms (U+0621-U+0652 being directly based on ISO 8859-6). It also includes the most common diacritics and Arabic-Indic digits. U+06D6 to U+06ED encode Qur'anic annotation signs such as "end of ayah" ۝ۖ and "start of rub el hizb" ۞. The Arabic supplement range encodes letter variants mostly used for writing African (non-Arabic) languages. The Arabic Extended-A range encodes additional Qur'anic annotations and letter variants used for various non-Arabic languages. The Arabic Presentation Forms-A range encodes contextual forms and ligatures of letter variants needed for Persian, Urdu, Sindhi and Central Asian languages. The Arabic Presentation Forms-B range encodes spacing forms of Arabic diacritics, and more contextual letter forms. The Arabic Mathematical Alphabetical Symbols block encodes characters used in Arabic mathematical expressions. See also the notes of the section on modified letters. Keyboards Keyboards designed for different nations have different layouts, so proficiency in one style of keyboard, such as Iraq's, does not transfer to proficiency in another, such as Saudi Arabia's. Differences can include the location of non-alphabetic characters. All Arabic keyboards allow typing Roman characters, e.g., for the URL in a web browser. Thus, each Arabic keyboard has both Arabic and Roman characters marked on the keys. Usually, the Roman characters of an Arabic keyboard conform to the QWERTY layout, but in North Africa, where French is the most common language typed using the Roman characters, the Arabic keyboards are AZERTY. To encode a particular written form of a character, there are extra code points provided in Unicode which can be used to express the exact written form desired. The range Arabic presentation forms A (U+FB50 to U+FDFF) contain ligatures while the range Arabic presentation forms B (U+FE70 to U+FEFF) contains the positional variants. These effects are better achieved in Unicode by using the zero-width joiner and zero-width non-joiner, as these presentation forms are deprecated in Unicode and should generally only be used within the internals of text-rendering software; when using Unicode as an intermediate form for conversion between character encodings; or for backwards compatibility with implementations that rely on the hard-coding of glyph forms. Finally, the Unicode encoding of Arabic is in logical order, that is, the characters are entered, and stored in computer memory, in the order that they are written and pronounced without worrying about the direction in which they will be displayed on paper or on the screen. Again, it is left to the rendering engine to present the characters in the correct direction, using Unicode's bi-directional text features. In this regard, if the Arabic words on this page are written left to right, it is an indication that the Unicode rendering engine used to display them is out of date. There are competing online tools, e.g. Yamli editor, which allow entry of Arabic letters without having Arabic support installed on a PC, and without knowledge of the layout of the Arabic keyboard. Handwriting recognition The first software program of its kind in the world that identifies Arabic handwriting in real time was developed by researchers at Ben-Gurion University (BGU). The prototype enables the user to write Arabic words by hand on an electronic screen, which then analyzes the text and translates it into printed Arabic letters in a thousandth of a second. The error rate is less than three percent, according to Dr. Jihad El-Sana, from BGU's department of computer sciences, who developed the system along with master's degree student Fadi Biadsy. See also Abjad numerals Ancient South Arabian script Algerian braille Arabic braille Arabic calligraphy Arabic chat alphabet Arabic diacritics Arabic letter frequency Arabic Mathematical Alphabetic Symbols Arabic numerals Arabic phonology Arabic script – about other languages written in Arabic script ArabTeX – provides Arabic support for TeX and LaTeX History of the Arabic alphabet Kufic Modern Arabic mathematical notation Perso-Arabic script Rasm Romanization of Arabic References Sources External links Arabic orthography

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https://en.wikipedia.org/wiki/Angels%20in%20art

Angels in art

Angels have appeared in works of art since early Christian art, and they have been a popular subject for Byzantine and European paintings and sculpture. Normally given wings in art, angels are usually intended, in both Christian and Islamic art, to be beautiful, though several depictions go for more awe-inspiring or frightening attributes, notably in the depiction of the living creatures (which have bestial characteristics), ophanim (which are wheels) and cherubim (which have mosaic features); As a matter of theology, they are spiritual beings who do not eat or excrete and are genderless. Many historical depictions of angels may appear to the modern eye to be gendered as either male or female by their dress or actions, but until the 19th century, even the most female looking will normally lack breasts, and the figures should normally be considered as genderless. In 19th-century art, especially funerary art, this traditional convention is sometimes abandoned. Christian art In the Early Church Specific ideas regarding how to portray angels began to develop in the early Church. Since angels are defined as pure spirits, the lack of a defined form has allowed artists wide latitude for creativity. Daniel 8:15 describes Gabriel as appearing in the "likeness of man" and in Daniel 9:21 he is referred to as "the man Gabriel." Such anthropomorphic descriptions of an angel are consistent with previous descriptions of angels, as in Genesis 19:5. They were usually depicted in the form of young men. The earliest known Christian image of an angel, in the Cubicolo dell'Annunziazione in the Catacomb of Priscilla, which is dated to the middle of the third century, is a depiction of the Annunciation in which Gabriel is portrayed without wings. Representations of angels on sarcophagi and on objects such as lamps and reliquaries of that period also show them without wings, as for example the angel in the Sacrifice of Isaac scene in the Sarcophagus of Junius Bassus. In a third-century fresco of the Hebrew children in the furnace, in the cemetery of St. Priscilla, a dove takes the place of the angel, while a fourth-century representation of the same subject, in the coemeterium majus, substitutes the Hand of God for the heavenly messenger. The earliest known representation of angels with wings is on what is called the Prince's Sarcophagus, discovered at Sarigüzel, near Istanbul, in the 1930s, and attributed to the time of Theodosius I (379-395). Flying winged angels, very often in pairs flanking a central figure or subject, are derivations in visual terms from pairs of winged Victories in classical art. In this same period, Saint John Chrysostom explained the significance of angels' wings: "They manifest a nature's sublimity. That is why Gabriel is represented with wings. Not that angels have wings, but that you may know that they leave the heights and the most elevated dwelling to approach human nature. Accordingly, the wings attributed to these powers have no other meaning than to indicate the sublimity of their nature." From then on Christian art generally represented angels with wings, as in the cycle of mosaics in the Basilica di Santa Maria Maggiore (432–440). Multi-winged angels, often with only their face and wings showing, drawn from the higher grades of angels, especially cherubim and seraphim, are derived from Persian art, and are usually shown only in heavenly contexts, as opposed to performing tasks on Earth. They often appear in the pendentives of domes or semi-domes of churches. Byzantine art Angels appear in Byzantine art in mosaics and icons. Artists found some of their inspiration from winged Greek figures such as "Victory". They also drew from imperial iconography. Court eunuchs could rise to positions of authority in the Empire. They performed ceremonial functions and served as trusted messengers. Amelia R. Brown points out that legislation under Justinian indicates that many of them came from the Caucasus, having light eyes, hair, and skin, as well as the "comely features and fine bodies" desired by slave traders. Those "castrated in childhood developed a distinctive skeletal structure, lacked full masculine musculature, body hair and beards,...." As officials, they would wear a white tunic decorated with gold. Brown suggests that "Byzantine artists drew, consciously or not, on this iconography of the court eunuch". Daniel 10: 5–6 describes an angel as clothed in linen and girt with gold. Angels, especially the archangel Michael, who were depicted as military-style agents of God, came to be shown wearing Late Antique military uniform. This could be either the normal military dress, with a tunic to about the knees, armour breastplate and pteruges, but also often the specific dress of the bodyguard of the Byzantine Emperor, with a long tunic and the loros, a long gold and jewelled pallium restricted to the Imperial family and their closest guards, and in icons to archangels. The basic military dress it is still worn in pictures into the Baroque period and beyond in the West, and up to the present day in Eastern Orthodox icons. Other angels came to be conventionally depicted in long robes. Medieval art Medieval depictions of angels borrow from the Byzantine. In the French Hours of Anne of Brittany, Gabriel wears a dalmatic. In the later Middle Ages they often wear the vestments of a deacon, a cope over a dalmatic, especially Gabriel in Annunciation scenes - for example The Annunciation by Jan van Eyck. This indicated that, for all their powers, they could not perform the Eucharist, and were in this respect outranked by every priest, reinforcing the prestige of the clergy. In Early Christian art white robes were almost invariably adopted, sometimes bound with the "golden girdle" of Revelation. During the mediæval period senior angels were often clad in every brilliant colour, while junior ranks wore white. Early Renaissance painters such as Jan van Eyck and Fra Angelico painted angels with multi-colored wings. Depictions of angels came to combine medieval notions of beauty with feminine ideals of grace and beauty, as in da Panicale's 1435 Baptism of Christ. Renaissance art The classical erotes or putto re-appeared in art during the Italian Renaissance in both religious and mythological art, and is often known in English as a cherub, the singular of cherubim, actually one of the higher ranks in the Christian angelic hierarchy. They normally appear in groups and are generally given wings in religious art, and are sometimes represented as just a winged head. They generally are just in attendance, except that they may be amusing Christ or John the Baptist as infants in scenes of the Holy Family. Victorian art In the late 19th century artists' model Jane Burden Morris came to embody an ideal of beauty for Pre-Raphaelite painters. With the use of her long dark hair and features made somewhat more androgynous, they created a prototype Victorian angel which would appear in paintings and stained glass windows. Roger Homan notes that Edward Burne-Jones and others used her image often and in different ways, creating a new type of angel. Islamic art Angels in Islamic art often appear in illustrated manuscripts of Muhammad's life. Other common depictions of angels in Islamic art include angels with Adam and Eve in the garden of Eden, angels discerning the saved from the damned on the Day of Judgement, and angels as a repeating motif in borders or textiles. Islamic depictions of angels resemble winged Christian angels, although Islamic angels are typically shown with multicolored wings. Angels, such as the archangel Gabriel, are typically depicted as masculine, which is consistent with God's rejection of feminine depictions of angels in several verses of Quran. Nevertheless, later depictions of angels in Islamic art are more feminine and androgynous. Angels in manuscripts The 13th century book Ajā'ib al-makhlūqāt wa gharā'ib al-mawjūdāt (The Wonders of Creation) by Zakariya al-Qazwini describes Islamic angelology, and is often illustrated with many images of angels. The angels are typically depicted with bright, vivid colors, giving them unusual liveliness and other-worldly translucence. While some angels are referred to as "Guardians of the Kingdom of God," others are associated with hell. An undated manuscript of The Wonders of Creation from the Bavarian State Library in Munich includes depictions of angels both alone and alongside humans and animals. Angels are also illustrated in Timurid and Ottoman manuscripts, such as The Timurid Book of the Prophet Muhammad’s Ascension () and the Siyer-i Nebi. Angels in heaven and hell The Qur’an makes multiple references to angels. These angels take on both active and passive roles in Quranic stories. In the story of the creation of Adam, God announces to the angels that he intends to create man. The angels act as witnesses to this announcement and subsequent creation of Adam. Although there are many versions of the story, Islamic sources relate that God used the creation of Adam as a punishment or test for the angels. Therefore, the role of angels is often described as in opposition to man. Another angel-like creature mentioned in the Qu’ran (4:97, 32:11) is the zabāniya. A zabāniya is a black angel of hell that brings souls of sinners down to hell to punish them and can be seen in illustrations of The Timurid Book of the Prophet Muhammad’s Ascension (c. 1436 A.D.). There are nineteen zabāniya, led by Mālik, an angel considered to be the master of fire or the gatekeeper of hell. Mālik's and zabāniya's categorizations as angels are debated as some believe they are better described as spirits or demons. Actually, portrayal of Zabaniyya shares many traits characteristical for demons in Islamic arts. As seen in The Timurid Book of the Prophet Muhammad’s Ascension, Muhammad is greeted by Mālik and later witnesses the torture of sinners carried out by the zabāniya. Similar, the fallen angel Iblis is shown during his moment of refusal to prostrate himself before the newly created Adam, leading to his banishment to the bottom of hell. He is depict as black skinned monstrous creature with horns and flaming eyes, in contrast to the presentation of the noble angels. Only his wings remain as a sign of his former angelic status, however with burned edges. Angels associated with Muhammad Although depictions of Muhammad are often forbidden, the few that exist often include images of angels. Specifically, the Archangel Gabriel is frequently shown alongside Muhammad. For example, in The Timurid Book of the Prophet Muhammad’s Ascension, the Archangel Gabriel appears to Muhammad in Mecca to announce his ascension. Kneeling before Muhammad, Gabriel is shown with colorful wings and a crown. Later in The Timurid Book, Muhammad is shown with Gabriel meeting a group of angels in heaven. In the Jami' al-tawarikh, a Persian history from the 14th century, Muhammad is depicted beside al-Buraq, whose tail is transformed into an angel, while two other angels approach. A 16th-century Ottoman manuscript of Siyer-i Nebi, a Turkish epic about the life of Muhammad, also includes many depictions of Muhammad alongside angels. Gallery of angels in Christian art Gallery of angels in Islamic art See also Archangel Michael in Christian art Michael (archangel) Gabriel Angels in Islam Angelus Fleur de lys List of films about angels List of names referring to El Seraph Notes References Christian art Islamic art

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https://en.wikipedia.org/wiki/Sid%20Meier%27s%20Alpha%20Centauri

Sid Meier's Alpha Centauri

Sid Meier's Alpha Centauri is a 4X video game, considered a spiritual sequel to the Civilization series. Set in a science fiction depiction of the 22nd century, the game begins as seven competing ideological factions land on the planet Chiron ("Planet") in the Alpha Centauri star system. As the game progresses, Planet's growing sentience becomes a formidable obstacle to the human colonists. Sid Meier, designer of Civilization, and Brian Reynolds, designer of Civilization II, developed Alpha Centauri after they left MicroProse to join with Jeff Briggs in creating a new video game developer: Firaxis Games. Electronic Arts released both Alpha Centauri and its expansion, Sid Meier's Alien Crossfire, in 1999. The following year, Aspyr Media ported both titles to Classic Mac OS while Loki Software ported them to Linux. Alpha Centauri features improvements on Civilization IIs game engine, including simultaneous multiplay, social engineering, climate, customizable units, alien native life, additional diplomatic and spy options, additional ways to win, and greater mod-ability. Alien Crossfire introduces five new human and two non-human factions, as well as additional technologies, facilities, secret projects, native life, unit abilities, and a victory condition. The game received wide critical acclaim, being compared favorably to Civilization II. Critics praised its science fiction storyline (comparing the plot to works by Stanley Kubrick, Frank Herbert, Arthur C. Clarke, and Isaac Asimov), the in-game writing, the voice acting, the user-created custom units, and the depth of the technology tree. Alpha Centauri also won several awards for best game of the year and best strategy game of the year. Synopsis Setting Space-race victories in the Civilization series conclude with a journey to Alpha Centauri. Beginning with that premise the Alpha Centauri narrative starts in the 22nd century, after the United Nations sends "Unity", a colonization mission, to Alpha Centauri's planet Chiron ("Planet"). Unbeknownst to humans, advanced extraterrestrials ("Progenitors") had been conducting experiments in vast distributed nervous systems, culminating in a planetary biosphere-sized presentient nervous system ("Manifold") on Chiron, leaving behind monoliths and artifacts on Planet to guide and examine the system's growth. Immediately prior to the start of the game, a reactor malfunction on the Unity spacecraft wakes the crew and colonists early and irreparably severs communications with Earth. After the captain is assassinated, the most powerful leaders on board build ideological factions with dedicated followers, conflicting agendas for the future of mankind, and "desperately serious" commitments. As the ship breaks up, seven escape pods, each containing a faction, are scattered across Planet. In the Alien Crossfire expansion pack, players learn that alien experiments led to disastrous consequences at Tau Ceti, creating a hundred-million-year evolutionary cycle that ended with the eradication of most complex animal life in several neighboring inhabited star systems. After the disaster (referred to by Progenitors as "Tau Ceti Flowering"), the Progenitors split into two factions: Manifold Caretakers, opposed to further experimentation and dedicated to preventing another Flowering; and Manifold Usurpers, favoring further experimentation and intending to induce a controlled Flowering in Alpha Centauris Planet. In Alien Crossfire, these factions compete along with the human factions for control over the destiny of Planet. Characters and factions The game focuses on the leaders of seven factions, chosen by the player from the 14 possible leaders in Alpha Centauri and Alien Crossfire, and Planet (voiced by Alena Kanka). The characters are developed from the faction leaders' portraits, the spoken monologues accompanying scientific discoveries and the "photographs in the corner of a commlink – home towns, first steps, first loves, family, graduation, spacewalk." The leaders in Alpha Centauri comprise: Lady Deirdre Skye, a Scottish activist (voiced by Carolyn Dahl), of Gaia's Stepdaughters; Chairman Sheng-Ji Yang, a Chinese Legalist official (voiced by Lu Yu), of the Human Hive; Academician Prokhor Zakharov, a Russian academic (voiced by Yuri Nesteroff) of the University of Planet; CEO Nwabudike Morgan, a Namibian businessman (voiced by Regi Davis), of Morgan Industries; Colonel Corazon Santiago, an American militiawoman (voiced by Wanda Niño) of the Spartan Federation; Sister Miriam Godwinson, an American minister and social psychologist (voiced by Gretchen Weigel), of the Lord's Believers; and Commissioner Pravin Lal, an Indian surgeon and diplomat (voiced by Hesh Gordon), of the Peacekeeping Forces. The player controls one of the leaders and competes against the others to colonize and conquer Planet. The Datalinks (voiced by Robert Levy and Katherine Ferguson) are minor characters who provide information to the player. Each faction excels at one or two important aspects of the game and follows a distinct philosophical belief, such as technological utopianism, Conclave Christianity, "free-market" capitalism, militarist survivalism, Chinese Legalism, U.N. Charter humanitarianism, or Environmentalist Gaia philosophy. The game takes place on Planet, with its "rolling red ochre plains" and "bands of lonely terraformed green". The seven additional faction leaders in Alien Crossfire are Prime Function Aki Zeta-Five, a Norwegian research assistant-turned-cyborg (voiced by Allie Rivenbark), of The Cybernetic Consciousness; Captain Ulrik Svensgaard, an American fisherman and naval officer (voiced by James Liebman), of The Nautilus Pirates; Foreman Domai, an Australian labor leader (voiced by Frederick Serafin), of The Free Drones; Datajack Sinder Roze, a Trinidadian hacker (voiced by Christine Melton), of The Data Angels; Prophet Cha Dawn, a human born on Planet (voiced by Stacy Spenser) of The Cult of Planet; Guardian Lular H'minee, a Progenitor leader (voiced by Jeff Gordon), of The Manifold Caretakers; and Conqueror Judaa Maar, a Progenitor leader (voiced by Jeff Gordon), of The Manifold Usurpers. Plot The story unfolds via the introduction video, explanations of new technologies, videos obtained for completing secret projects, interludes, and cut-scenes. The native life consists primarily of simple wormlike alien parasites and a type of red fungus that spreads rapidly via spores. The fungus is difficult to traverse, provides invisibility for the enemy, provides few resources, and spawns "mindworms" that attack population centres and military units by neurally parasitising them. Mindworms can eventually be captured and bred in captivity and used as terroristic bioweapons, and the player eventually discovers that the fungus and mindworms can think collectively. A voice intrudes into the player's dreams and soon waking moments, threatening more attacks if the industrial pollution and terraforming by the colonists is not reversed. The player discovers that Planet is a dormant semi-sentient hive organism that will soon experience a metamorphosis which will destroy all human life. To counter this threat, the player or a computer faction builds "The Voice of Alpha Centauri" secret project, which artificially links Planet's distributed nervous system into the human Datalinks, delaying Planet's metamorphosis into full self-awareness but incidentally increasing its ultimate intelligence substantially by giving it access to all of humanity's accumulated knowledge. Finally, the player or a computer faction embraces the "Ascent to Transcendence" in which humans too join their brains with the hive organism in its metamorphosis to godhood. Thus, Alpha Centauri closes "with a swell of hope and wonder in place of the expected triumphalism", reassuring "that the events of the game weren't the entirety of mankind's future, but just another step." Gameplay Alpha Centauri, a turn-based strategy game with a science fiction setting, is played from an isometric perspective. Many game features from Civilization II are present, but renamed or slightly tweaked: players establish bases (Civilization II's cities), build facilities (buildings) and secret projects (Wonders of the World), explore territory, research technology, and conquer other factions (civilizations). In addition to conquering all non-allied factions, players may also win by obtaining votes from three quarters of the total population (similar to Civilization IVs Diplomatic victory), "cornering the Global Energy Market", completing the Ascent to Transcendence secret project, or for alien factions, constructing six Subspace Generators. The main map (the upper two thirds of the screen) is divided into squares, on which players can establish bases, move units and engage in combat. Through terraforming, players may modify the effects of the individual map squares on movement, combat and resources. Resources are used to feed the population, construct units and facilities, and supply energy. Players can allocate energy between research into new technology and energy reserves. Unlike Civilization II, new technology grants access to additional unit components rather than pre-designed units, allowing players to design and re-design units as their factions' priorities shift. Energy reserves allow the player to upgrade units, maintain facilities, and attempt to win by the Global Energy Market scenario. Bases are military strongpoints and objectives that are vital for all winning strategies. They produce military units, house the population, collect energy, and build secret projects and Subspace Generators. Facilities and secret projects improve the performance of individual bases and of the entire faction. In addition to terraforming, optimizing individual base performance and building secret projects, players may also benefit their factions through social engineering, probe teams, and diplomacy. Social engineering modifies the ideologically based bonuses and penalties forced by the player's choice of faction. Probe teams can sabotage and steal information, units, technology, and energy from enemy bases, while diplomacy lets the player create coalitions with other factions. It also allows the trade or transfer of units, bases, technology and energy. The Planetary Council, similar to the United Nations Security Council, takes Planet-wide actions and determines population victories. In addition to futuristic technological advances and secret projects, the game includes alien life, structures and machines. "Xenofungus" and "sea fungus" provide movement, combat, and resource penalties, as well as concealment for "mind worms" and "spore launchers". Immobile "fungal towers" spawn native life. Native life, including the seaborne "Isles of the Deep" and "Sealurks" and airborne "Locusts of Chiron", use psionic combat, an alternate form of combat which ignores weapons and armor. Monoliths repair units and provide resources; artifacts yield new technology and hasten secret projects; landmarks provide resource bonuses; and random events add danger and opportunity. Excessive development leads to terraforming-destroying fungus blooms and new native life. Alpha Centauri provides a single player mode and supports customization and multiplayer. Players may customize the game by choosing options at the beginning of the game, using the built-in scenario and map editors, and modifying Alpha Centauris game files. In addition to a choice of seven (or 14 in Alien Crossfire) factions, pre-game options include scenario game, customized random map, difficulty level, and game rules that include victory conditions, research control, and initial map knowledge. The scenario and map editors allow players to create customized scenarios and maps. The game's basic rules, diplomatic dialog, and the factions' starting abilities are in text files, which "the designers have done their best to make it reasonably easy to modify..., even for non-programmers." Alpha Centauri supports play by email ("PBEM") and TCP/IP mode featuring simultaneous movement, and introduces direct player-to-player negotiation, allowing the unconstrained trade of technology, energy, maps, and other elements. Development Inspirations In 1996, MicroProse released the lauded Civilization II, designed by Brian Reynolds. Spectrum Holobyte who owned MicroProse at the time, opted to consolidate their business under the MicroProse name, moving the company from Maryland to California by the time the game shipped, and laying off several MicroProse employees. Disagreements between the new management and its employees prompted Reynolds, Jeff Briggs, and Sid Meier (designer of the original Civilization) to leave MicroProse and found Firaxis. Although unable to use the same intellectual property as Civilization II, the new company felt that players wanted "a new sweeping epic of a turn-based game". Having just completed a game of human history up to the present, they wanted a fresh topic and chose science fiction. With no previous experience in science fiction games, the developers believed future history was a fitting first foray. For the elements of exploring and terraforming an alien world, they chose a plausible near future situation of a human mission to colonize the solar system's nearest neighbour and human factions. Reynolds researched science fiction for the game's writing. His inspiration included "classic works of science fiction", including Frank Herbert's The Jesus Incident and Hellstrom's Hive, A Fire Upon the Deep by Vernor Vinge, and The Mote in God's Eye by Larry Niven and Jerry Pournelle for alien races; Kim Stanley Robinson's Red Mars, Slant by Greg Bear, and Stephen R. Donaldson's The Real Story for future technology and science; and Dune by Herbert and Bear's Anvil of Stars for negative interactions between humans. Alpha Centauri set out to capture the whole sweep of humanity's future, including technology, futuristic warfare, social and economic development, the future of the human condition, spirituality, and philosophy. Reynolds also said that "getting philosophy into the game" was one of the attractions of the game. Believing good science fiction thrives on constraint, the developers began with near-future technologies. As they proceeded into the future, they tried to present a coherent, logical, and detailed picture of future developments in physics, biology, information technology, economics, society, government, and philosophy. Alien ecologies and mysterious intelligences were incorporated into Alpha Centauri as external "natural forces" intended to serve as flywheels for the backstory and a catalyst for many player intelligences. Chris Pine, creator of the in-game map of Planet, strove to make Planet look like a real planet, which resulted in evidence of tectonic action. Another concern was that Planet matched the story, which resulted in the fungus being connected across continents, as it is supposed to be a gigantic neural network. Terraforming is a natural outgrowth of colonizing an alien world. The first playable prototype was just a map generator that tested climate changes during the game. This required the designers to create a world builder program and climatic model far more powerful than anything they'd done before. Temperature, wind, and rainfall patterns were modeled in ways that allow players to make changes: for example, creating a ridge-line and then watching the effects. In addition to raising terrain, the player can also divert rivers, dig huge boreholes into the planet's mantle, and melt ice caps. In addition to scientific advances, the designers speculated on the future development of human society. The designers allow the player to decide on a whole series of value choices and choose a "ruthless", "moderate", or "idealistic" stance. Reynolds said the designers don't promote a single "right" answer, instead giving each value choice positive and negative consequences. This design was intended to force the player to "think" and make the game "addictive". He also commented that Alpha Centauris fictional nature allowed them to draw their characters "a lot more sharply and distinctly than the natural blurring and greyness of history". Chiron, the name of the planet, is the name of the only non-barbaric centaur in Greek mythology and an important loregiver and teacher for humanity. The name also pays homage to James P. Hogan's 1982 space opera novel Voyage from Yesteryear, in which a human colony is artificially planted by an automatic probe on a planet later named by colonists as Chiron. In the game, Chiron has two moons, named after the centaurs Nessus and Pholus, with the combined tidal force of Earth's Moon, and is the second planet out from Alpha Centauri A, the innermost planet being the Mercury-like planet named after the centaur Eurytion. Alpha Centauri B is also dubbed Hercules, a reference to him killing several centaurs in mythology, and the second star preventing the formation of larger planets. The arrival on Chiron is referred to as "Planetfall", which is a term used in many science fiction novels, including Robert A. Heinlein's Future History series, and Infocom's celebrated comic interactive fiction adventure Planetfall. Vernor Vinge's concept of technological singularity is the origin of the Transcendence concept. The game's cutscenes use montages of live-action video, CGI, or both; most of the former is from the 1992 experimental documentary Baraka. Alpha Centauri In July 1996, Firaxis began work on Alpha Centauri, with Reynolds heading the project. Meier and Reynolds wrote playable prototype code and Jason Coleman wrote the first lines of the development libraries. Because the development of Gettysburg took up most of Firaxis' time, the designers spent the first year prototyping the basic ideas. By late 1996, the developers were playing games on the prototype, and by the middle of the next year, they were working on a multiplayer engine. Although Firaxis intended to include multiplayer support in its games, an important goal was to create games with depth and longevity in single-player mode because they believed that the majority of players spend most of their time playing this way. Reynolds felt that smart computer opponents are an integral part of a classic computer game, and considered it a challenge to make them so. Reynolds' previous games omitted internet support because he believed that complex turn-based games with many player options and opportunities for player input are difficult to facilitate online. Reynolds said that the most important principle of game design is for the designer to play the game as it is developed; Reynolds claimed that this was how a good artificial intelligence (AI) was built. To this end, he would track the decisions he made and why he made them as he played the game. The designer also watched what the computer players did, noting "dumb" actions and trying to discover why the computer made them. Reynolds then taught the computer his reasoning process so the AI could find the right choice when presented several attractive possibilities. He said the AI for diplomatic personalities was the best he had done up to that point. Doug Kaufman, a co-designer of Civilization II, was invited to join development as a game balancer. Reynolds cited the Alpha Centauris balance for the greater sense of urgency and the more pressing pacing than in his earlier game, Sid Meier's Colonization. According to producer Timothy Train, in designing the strengths and weaknesses of the factions, the goal was to suggest, without requiring, certain strategies and give the player interesting and fun things to do without unbalancing the game. He didn't want a faction to be dependent on its strength or a faction's power to be dominant over the rest. Train felt that fun meant the factions always have something fun to do with their attributes. Around the summer of 1997, the staff began research on the scientific realities involved in interstellar travel. In late 1997, Bing Gordon—then Chief Creative Officer of Electronic Arts—joined the team, and was responsible for the Planetary Council, extensive diplomacy, and landmarks. A few months before the 1998 Electronic Entertainment Expo (E3), the team incorporated the Explore/Discover/Build/Conquer marketing campaign into the game. The game was announced in May 1998 at E3. In the latter half of 1998, the team produced a polished and integrated interface, wrote the game manual and foreign language translations, painted the faction leader portraits and terrain, built the 3D vehicles and vehicle parts, and created the music. Michael Ely directed the Secret Project movies and cast the faction leaders. 25 volunteers participated in Firaxis' first public beta test. The beta testers suggested the Diplomatic and Economic victories and the Random Events. The design team started with a very simple playable game. They strengthened the "fun" aspects and fixed or removed the unenjoyable ones, a process Sid Meier called "surrounding the fun". After the revision, they played it again, repeating the cycle of revision and play. Playing the game repeatedly and in-depth was a rule at Firaxis. In the single-player mode, the team tried extreme strategies to find any sure-fire paths to victory and to see how often a particular computer faction ends up at the bottom. The goal was a product of unprecedented depth, scope, longevity, and addictiveness, where the player is always challenged by the game to come up with new strategies with no all-powerful factions or unstoppable tactics. According to Reynolds, the process has been around since Sid Meier's early days at Microprose. At Firaxis, as iterations continue, they expand the group giving feedback, bringing in outside gamers with fresh perspectives. Alpha Centauri was the first Firaxis game with public beta testers. Finally, Brian Reynolds discussed the use of the demo in the development process. Originally a marketing tool released prior to the game, they started getting feedback. They were able to incorporate many suggestions into the retail version. According to Brian Reynolds, they made improvement in the game's interface, added a couple of new features and fixed a few glitches. They also improved some rules, fine-tuned the game balance and improved the AI. Finally, he adds that they continued to add patches to enhance the game after the game was released. In the months leading to the release of Alpha Centauri, multimedia producer Michael Ely wrote the 35 weekly episodes of Journey to Centauri detailing the splintering of the U.N. mission to Alpha Centauri. Alien Crossfire A month after Alpha Centauris February 1999 release, the Firaxis team began work on the expansion pack, Sid Meier's Alien Crossfire. Alien Crossfire features seven new factions (two that are non-human), new technologies, new facilities, new secret projects, new alien life forms, new unit special abilities, new victory conditions (including the new "Progenitor Victory") and several additional concepts and strategies. The development team included Train as producer and designer, Chris Pine as programmer, Jerome Atherholt and Greg Foertsch as artists, and Doug Kaufman as co-designer and game balancer. The team considered several ideas, including a return to a post-apocalyptic earth and the conquest of another planet in the Alpha Centauri system, before deciding to keep the new title on Planet. The premise allowed them to mix and match old and new characters and delve into the mysteries of the monoliths and alien artifacts. The backstory evolved quickly, and the main conflict centered on the return of the original alien inhabitants. The idea of humans inadvertently caught up in an off-world civil war focused the story. Train wanted to improve the "build" aspects, feeling that the god-game genre had always been heavily slanted towards the "Conquer" end of the spectrum. He wanted to provide "builders" with the tools to construct an empire in the face of heated competition. The internet community provided "invaluable" feedback. The first "call for features" was posted around April 1999 and produced the Fletchette Defense System, Algorithmic Enhancement, and The Nethack Terminus. The team had several goals: factions should not be "locked-in" to certain strategies; players should have interesting things to do without unbalancing the game, and the factions must be fun to play. The team believed the "coolness" of the Progenitor aliens would determine the success or failure of Alien Crossfire. They strove to make them feel significantly different to play, but still compatible with the existing game mechanics. The developers eventually provided the aliens with Battle Ogres, a Planetary survey, non-blind research, and other powers to produce "a nasty and potent race that would take the combined might of humanity to bring them down". Chris Pine modified the AI to account for the additions. The team also used artwork, sound effects, music, and diplomatic text to set the aliens apart. Other than the aliens, the Pirates proved to be the toughest faction to balance because their ocean start gave them huge advantages. Upon completion, the team felt that Alien Crossfire was somewhere between an expansion and a full-blown sequel. In the months leading to the release of Alien Crossfire, multimedia producer Michael Ely wrote the 9 episodes of Centauri: Arrival, introducing the Alien Crossfire factions. The game initially had a single production run. Electronic Arts bundled Alpha Centauri and Alien Crossfire in the Alpha Centauri Planetary Pack in 2000 and included both games in The Laptop Collection in 2003. In 2000, both Alpha Centauri and Alien Crossfire were ported to Classic Mac OS by Aspyr Media and to Linux by Loki Software. Reception Alpha Centauri received wide critical acclaim upon its release, with reviewers voicing respect for the game's pedigree, especially that of Reynolds and Meier. The video game review aggregator websites GameRankings and Metacritic, which collect data from numerous review websites, listed scores of 92% and 89%, respectively. The game was favorably compared to Reynold's previous title, Civilization II, and Rawn Shah of IT World Canada praised the expansion for a "believable" plot. However, despite its critical reception, it sold the fewest copies of all the games in the Civilization series. It sold more than 100,000 copies in its first two months of release. This was followed by 50,000 copies in April, May and June. In the United States, Alpha Centauri was the tenth-best-selling computer game of 1999's first half. Its sales in that country alone reached 224,939 copies by the end of 1999, and rose to 281,115 units by September 2000. Critical reaction The game showed well at the 1998 Electronic Entertainment Expo (E3). Walter Morbeck of GameSpot said that Alpha Centauri was "more than hi-tech physics and new ways to blow each other up", and that the game would feature realistic aliens. Terry Coleman of Computer Gaming World predicted that Alpha Centauri would be "another huge hit". OGR awarded it "Most Promising Strategy Game" and one of the top 25 games of E3 '98. In a vote of 27 journalists from 22 gaming magazine, Alpha Centauri won "Best Turn Based Strategy" of E3 Show Award. Aaron John Loeb, the Awards Committee Chairman, said "for those that understand the intricacies, the wonder, the glory of turn based 'culture building,' this is the game worth skipping class for." Alpha Centauri's science fiction storyline received high praise; IGN considered the game an exception to PC sci-fi cliches, and GamePro compared the plot to the works of writers Stanley Kubrick and Isaac Asimov. J.C. Herz of The New York Times suggested that the game was a marriage of SimCity and Frank Herbert's Dune. GamePros Dan Morris said "As the single-player campaign builds to its final showdown, the ramifications of the final theoretical discoveries elevate Alpha Centauri from great strategy game to science-fiction epic." Game Revolution said, "The well crafted story, admirable science-fiction world, fully realized scenario, and quality core gameplay are sure to please." Edge praised the uniqueness of expression saying it was "the same kind of old-fashioned, consensual storytelling that once drew universes out of ASCII." The in-game writing and faction leaders were also well-received for their believability, especially the voice acting. GameSpot reviewer Denny Atkin called the factions and their abilities Alpha Centauris "most impressive aspect". Greg Tito of The Escapist said, "the genius of the game is how it flawlessly blends its great writing with strategy elements." Alpha Centauri's turn-based gameplay, including the technology trees and factional warfare, was commonly compared to Civilization and Civilization II. The Adrenaline Vault's Pete Hines said, "While Alpha Centauri is the evolutionary off-spring to [Civilization] and [Civilization II], it is not [Civilization II] in space. Although the comparison is inevitable because of the lineage, it is still short-sighted." Edge in 2006 praised "Alpha Centauri's greater sophistications as a strategy game." IGN said "Alpha Centauri is a better game than Civilization II; it's deep, rich, rewarding, thought-provoking in almost every way." Game Revolution's reviewer was less magnanimous, saying "Alpha Centauri is at least as good a game as Civilization 2. But it is its great similarity that also does it the most detriment. Alpha Centauri simply does not do enough that is new; it just doesn't innovate enough to earn a higher grade." The ability to create custom units was praised, as was the depth of the tech tree. The artificial intelligence of computer-controlled factions, which featured adaptability and behavioral subtlety, was given mixed comments; some reviewers thought it was efficient and logical, while others found it confusing or erratic. Edge was disappointed in the game's diplomacy, finding "no more and no less than is expected from the genre" and unhappy with "the inability to sound out any real sense of relationship or rational discourse." The game's graphics were widely acknowledged to be above average at the time of its release, but not revolutionary. Its maps and interface were considered detailed and in accordance with a space theme, but the game was released with a limited color palette. The in-game cutscenes, particularly the full motion video that accompanied technological advances, were praised for their quality and innovation. Alpha Centauri's sound and music received similar comments; FiringSquad said "[The sound effect quality] sort of follows the same line as the unit graphics – not too splashy but enough to get the job done." Next Generation reviewed the PC version of the game, rating it five stars out of five, and stated that "Sid Meier creates yet another masterpiece in this game that, at a glance, looks all too familiar." Alpha Centauri has won several Game of the Year awards, including those from the Denver Post and the Toronto Sun. It won the "Turn-based Strategy Game of the Year" award from GameSpot as well. The Academy of Interactive Arts & Sciences awarded Alpha Centauri for "PC Strategy Game of the Year" at the 2nd Annual Interactive Achievement Awards; it also received nominations for "Game of the Year", "Computer Entertainment Title of the Year", and "Outstanding Achievement in Interactive Design". In 2000, Alpha Centauri won the Origins Award for Best Strategy Computer Game of 1999. The editors of PC Gamer US named Alpha Centauri their "Best Turn-Based Strategy Game" of 1999, and wrote that it "set a new standard for this venerable genre." Alpha Centauri has the distinction of receiving gaming magazine PC Gamers highest score to date as of 2019 (98%), alongside Half-Life 2 and Crysis, surpassing Civilization IIs score (97%). Alien Crossfire was a runner-up for Computer Games Strategy Pluss 1999 "Add-on of the Year" award, which ultimately went to Heroes of Might and Magic III: Armageddon's Blade. Legacy There have been no direct sequels beyond Alien Crossfire, something that writer Greg Tito attributed to Reynolds leaving Firaxis in 2000 to form Big Huge Games. Alien Crossfire producer and lead designer Timothy Train also left Firaxis with Reynolds. However, a spiritual sequel, Civilization: Beyond Earth, was announced by Firaxis in April 2014 and released on October 24, 2014; several of those that worked on Alpha Centauri helped to develop the new title. A review in Polygon noted however that while the new game has better graphics, its story fails to rival the original, a sentiment echoed by another review in PC Gamer. Another in Engadget noted "as a spiritual successor to Sid Meier's Alpha Centauri, however, it's a cut-rate disappointment". Many of the features introduced in Alpha Centauri were carried over into subsequent Civilization titles; upon its release, Civilization III was compared negatively to Alpha Centauri, whose Civilization characteristics were reminiscent of faction bonuses and penalties. The government system in Civilization IV closely resembles Alpha Centauris, and Civilization V includes a new victory condition: the completion of the 'Utopia project', which is reminiscent of the Ascent to Transcendence secret project. According to Edge magazine, Alpha Centauri remained "highly regarded" in 2006. A decade after its release, Sold-Out Software and GOG.com re-released the game for online-download sales. Escapist Magazine reviewed the game in 2014, noting that "Alpha Centauri is still playable. It still has a unique flavor that is unlike anything else". After the release of the expansion, multimedia producer Michael Ely wrote a trilogy of novels based on the game. Writer Steve Darnall and illustrator Rafael Kayanan also made a graphic novel entitled Alpha Centauri: Power of the Mindworms. Steve Jackson Games published GURPS Alpha Centauri, a sourcebook for the GURPS role-playing game set in the Alpha Centauri universe. See also Alpha Centauri in fiction Group mind (science fiction) Survivalism in fiction Sid Meier's Civilization: Beyond Earth Notes References Further reading – covers the early years of colonization of the planet Chiron and describes the siege of United Nations HQ by the Spartans, the loss of Peacekeeper sovereignty and the consequent flight by the United Nations survivors into Gaian territory. – occurs years after the events of Centauri Dawn and describes the Gaia's Stepdaughters' use of "mindworms" to rebuff an attack by the technologically superior Morgan Industries. – follows the tension between the University of Planet and the Lord's Believers and describes the use of singularity bombs to destroy Morgan Industries and the Spartan Federation and the native life uprising which destroys humanity. External links Official website mirrored by alphacentauri2.info. Unofficial patches 1999 video games 4X video games Alpha Centauri in fiction Aspyr games City-building games Civilization (series) Firaxis Games games Interstellar travel in fiction Linux games Loki Entertainment games Classic Mac OS games MacOS games Multiplayer and single-player video games Origins Award winners Religion in science fiction Science fiction video games Alpha Centauri Turn-based strategy video games Video games about extraterrestrial life Video games adapted into comics Video games developed in the United States Video games scored by Jeff Briggs Video games set on fictional planets Video games with expansion packs Video games with isometric graphics Video games with voxel graphics Windows games Multiplayer hotseat games Xenoarchaeology in fiction

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https://en.wikipedia.org/wiki/Armenian%20language

Armenian language

Armenian ( (reformed), (classical), , ) is an Indo-European language and the sole member of an independent branch of that language family. It is the native language of the Armenian people and the official language of Armenia. Historically spoken in the Armenian highlands, today Armenian is widely spoken throughout the Armenian diaspora. Armenian is written in its own writing system, the Armenian alphabet, introduced in 405 AD by the canonized saint Mesrop Mashtots. The estimated number of Armenian speakers worldwide is between five and seven million. History Classification and origins Armenian is an independent branch of the Indo-European languages. It is of interest to linguists for its distinctive phonological changes within that family. Armenian exhibits more satemization than centumization, although it is not classified as belonging to either of these subgroups. Some linguists tentatively conclude that Armenian, Greek (and Phrygian) and Indo-Iranian were dialectally close to each other; within this hypothetical dialect group, Proto-Armenian was situated between Proto-Greek (centum subgroup) and Proto-Indo-Iranian (satem subgroup). Ronald I. Kim has noted unique morphological developments connecting Armenian to Balto-Slavic languages. The Armenian language has a long literary history, with a 5th-century Bible translation as its oldest surviving text. Its vocabulary has historically been influenced by Western Middle Iranian languages, particularly Parthian; its derivational morphology and syntax were also affected by language contact with Parthian, but to a lesser extent. Contact with Greek, Persian, and Syriac also resulted in a number of loanwords. There are two standardized modern literary forms, Eastern Armenian (spoken mainly in Armenia) and Western Armenian (spoken originally mainly in modern-day Turkey and, since the Armenian genocide, mostly in the diaspora). The differences between them are considerable but they are mutually intelligible after significant exposure. Some subdialects such as Homshetsi are not mutually intelligible with other varieties. Although Armenians were known to history much earlier (for example, they were mentioned in the 6th-century BC Behistun Inscription and in Xenophon's 4th century BC history, The Anabasis), the oldest surviving Armenian-language writing is etched in stone on Armenian temples and is called Mehenagir. The Armenian alphabet was created by Mesrop Mashtots in 405, at which time it had 36 letters. He is also credited by some with the creation of the Georgian alphabet and the Caucasian Albanian alphabet. While Armenian constitutes the sole member of the Armenian branch of the Indo-European family, Aram Kossian has suggested that the hypothetical Mushki language may have been a (now extinct) Armenic language. Early contacts W. M. Austin (1942) concluded that there was early contact between Armenian and Anatolian languages, based on what he considered common archaisms, such as the lack of a feminine gender and the absence of inherited long vowels. Unlike shared innovations (or synapomorphies), the common retention of archaisms (or symplesiomorphy) is not considered conclusive evidence of a period of common isolated development. There are words used in Armenian that are generally believed to have been borrowed from Anatolian languages, particularly from Luwian, although some researchers have identified possible Hittite loanwords as well. One notable loanword from Anatolian is Armenian xalam, "skull", cognate to Hittite ḫalanta, "head". In 1985, the Soviet linguist Igor M. Diakonoff noted the presence in Classical Armenian of what he calls a "Caucasian substratum" identified by earlier scholars, consisting of loans from the Kartvelian and Northeast Caucasian languages. Noting that Hurro-Urartian-speaking peoples inhabited the Armenian homeland in the second millennium BC, Diakonoff identifies in Armenian a Hurro-Urartian substratum of social, cultural, and animal and plant terms such as ałaxin "slave girl" ( ← Hurr. al(l)a(e)ḫḫenne), cov "sea" ( ← Urart. ṣûǝ "(inland) sea"), ułt "camel" ( ← Hurr. uḷtu), and xnjor "apple (tree)" ( ← Hurr. ḫinzuri). Some of the terms he gives admittedly have an Akkadian or Sumerian provenance, but he suggests they were borrowed through Hurrian or Urartian. Given that these borrowings do not undergo sound changes characteristic of the development of Armenian from Proto-Indo-European, he dates their borrowing to a time before the written record but after the Proto-Armenian language stage. Contemporary linguists, such as Hrach Martirosyan, have rejected many of the Hurro-Urartian and Northeast Caucasian origins for these words and instead suggest native Armenian etymologies, leaving the possibility that these words may have been loaned into Hurro-Urartian and Caucasian languages from Armenian, and not vice versa. A notable example is arciv, meaning "eagle", believed to have been the origin of Urartian Arṣibi and Northeast Caucasian arzu. This word is derived from Proto-Indo-European *h₂r̥ǵipyós, with cognates in Sanskrit (ऋजिप्य, ṛjipyá), Avestan (ərəzifiia), and Greek (αἰγίπιος, aigípios). Hrach Martirosyan and Armen Petrosyan propose additional borrowed words of Armenian origin loaned into Urartian and vice versa, including grammatical words and parts of speech, such as Urartian eue ("and"), attested in the earliest Urartian texts and likely a loan from Armenian (compare to Armenian , ultimately from Proto-Indo-European *h₁epi). Other loans from Armenian into Urartian includes personal names, toponyms, and names of deities. Loan words from Iranian languages, along with the other ancient accounts such as that of Xenophon above, initially led linguists to erroneously classify Armenian as an Iranian language. Scholars such as Paul de Lagarde and F. Müller believed that the similarities between the two languages meant that Armenian belonged to the Iranian language family. The distinctness of Armenian was recognized when philologist Heinrich Hübschmann (1875) used the comparative method to distinguish two layers of Iranian words from the older Armenian vocabulary. He showed that Armenian often had two morphemes for one concept, that the non-Iranian components yielded a consistent Proto-Indo-European pattern distinct from Iranian, and that the inflectional morphology was different from that of Iranian languages. Graeco-Armenian hypothesis The hypothesis that Greek is Armenian's closest living relative originates with Holger Pedersen (1924), who noted that the number of Greek-Armenian lexical cognates is greater than that of agreements between Armenian and any other Indo-European language. Antoine Meillet (1925, 1927) further investigated morphological and phonological agreement and postulated that the parent languages of Greek and Armenian were dialects in immediate geographical proximity during the Proto-Indo-European period. Meillet's hypothesis became popular in the wake of his book Esquisse d'une histoire de la langue latine (1936). Georg Renatus Solta (1960) does not go as far as postulating a Proto-Graeco-Armenian stage, but he concludes that considering both the lexicon and morphology, Greek is clearly the dialect to be most closely related to Armenian. Eric P. Hamp (1976, 91) supports the Graeco-Armenian thesis and even anticipates a time "when we should speak of Helleno-Armenian" (meaning the postulate of a Graeco-Armenian proto-language). Armenian shares the augment and a negator derived from the set phrase in the Proto-Indo-European language ("never anything" or "always nothing"), the representation of word-initial laryngeals by prothetic vowels, and other phonological and morphological peculiarities with Greek. Nevertheless, as Fortson (2004) comments, "by the time we reach our earliest Armenian records in the 5th century AD, the evidence of any such early kinship has been reduced to a few tantalizing pieces". Greco-Armeno-Aryan hypothesis Graeco-(Armeno)-Aryan is a hypothetical clade within the Indo-European family, ancestral to the Greek language, the Armenian language, and the Indo-Iranian languages. Graeco-Aryan unity would have become divided into Proto-Greek and Proto-Indo-Iranian by the mid-3rd millennium BC. Conceivably, Proto-Armenian would have been located between Proto-Greek and Proto-Indo-Iranian, consistent with the fact that Armenian shares certain features only with Indo-Iranian (the satem change) but others only with Greek (s > h). Graeco-Aryan has comparatively wide support among Indo-Europeanists who believe the Indo-European homeland to be located in the Armenian Highlands, the "Armenian hypothesis". Early and strong evidence was given by Euler's 1979 examination on shared features in Greek and Sanskrit nominal flection. Used in tandem with the Graeco-Armenian hypothesis, the Armenian language would also be included under the label Aryano-Greco-Armenic, splitting into Proto-Greek/Phrygian and "Armeno-Aryan" (ancestor of Armenian and Indo-Iranian). Evolution Classical Armenian (Arm: grabar), attested from the 5th century to the 19th century as the literary standard (up to the 11th century also as a spoken language with different varieties), was partially superseded by Middle Armenian, attested from the 12th century to the 18th century. Specialized literature prefers "Old Armenian" for grabar as a whole, and designates as "Classical" the language used in the 5th century literature, "Post-Classical" from the late 5th to 8th centuries, and "Late Grabar" that of the period covering the 8th to 11th centuries. Later, it was used mainly in religious and specialized literature, with the exception of a revival during the early modern period, when attempts were made to establish it as the language of a literary renaissance, with neoclassical inclinations, through the creation and dissemination of literature in varied genres, especially by the Mekhitarists. The first Armenian periodical, Azdarar, was published in grabar in 1794. The classical form borrowed numerous words from Middle Iranian languages, primarily Parthian, and contains smaller inventories of loanwords from Greek, Syriac, Aramaic, Arabic, Mongol, Persian, and indigenous languages such as Urartian. An effort to modernize the language in Bagratid Armenia and the Armenian Kingdom of Cilicia (11–14th centuries) resulted in the addition of two more characters to the alphabet ("" and ""), bringing the total number to 38. The Book of Lamentations by Gregory of Narek (951–1003) is an example of the development of a literature and writing style of Old Armenian by the 10th century. In addition to elevating the literary style and vocabulary of the Armenian language by adding well above a thousand new words, through his other hymns and poems Gregory paved the way for his successors to include secular themes and vernacular language in their writings. The thematic shift from mainly religious texts to writings with secular outlooks further enhanced and enriched the vocabulary. "A Word of Wisdom", a poem by Hovhannes Sargavak devoted to a starling, legitimizes poetry devoted to nature, love, or female beauty. Gradually, the interests of the population at large were reflected in other literary works as well. Konsdantin Yerzinkatsi and several others took the unusual step of criticizing the ecclesiastic establishment and addressing the social issues of the Armenian homeland. These changes represented the nature of the literary style and syntax, but they did not constitute immense changes to the fundamentals of the grammar or the morphology of the language. Often, when writers codify a spoken dialect, other language users are then encouraged to imitate that structure through the literary device known as parallelism. In the 19th century, the traditional Armenian homeland was once again divided. This time Eastern Armenia was conquered from Qajar Iran by the Russian Empire, while Western Armenia, containing two thirds of historical Armenia, remained under Ottoman control. The antagonistic relationship between the Russian and Ottoman empires led to creation of two separate and different environments under which Armenians lived. Halfway through the 19th century, two important concentrations of Armenian communities were further consolidated. Because of persecutions or the search for better economic opportunities, many Armenians living under Ottoman rule gradually moved to Istanbul, whereas Tbilisi became the center of Armenians living under Russian rule. These two cosmopolitan cities very soon became the primary poles of Armenian intellectual and cultural life. The introduction of new literary forms and styles, as well as many new ideas sweeping Europe, reached Armenians living in both regions. This created an ever-growing need to elevate the vernacular, Ashkharhabar, to the dignity of a modern literary language, in contrast to the now-anachronistic Grabar. Numerous dialects existed in the traditional Armenian regions, which, different as they were, had certain morphological and phonetic features in common. On the basis of these features two major standards emerged: Western standard: The influx of immigrants from different parts of the traditional Armenian homeland to Istanbul crystallized the common elements of the regional dialects, paving the way for a style of writing that required a shorter and more flexible learning curve than Grabar. Eastern standard: The Yerevan dialect provided the primary elements of Eastern Armenian, centered in Tbilisi, Georgia. Similar to the Western Armenian variant, the Modern Eastern was in many ways more practical and accessible to the masses than Grabar. Both centers vigorously pursued the promotion of Ashkharhabar. The proliferation of newspapers in both versions (Eastern & Western) and the development of a network of schools where modern Armenian was taught, dramatically increased the rate of literacy (in spite of the obstacles by the colonial administrators), even in remote rural areas. The emergence of literary works entirely written in the modern versions increasingly legitimized the language's existence. By the turn of the 20th century both varieties of the one modern Armenian language prevailed over Grabar and opened the path to a new and simplified grammatical structure of the language in the two different cultural spheres. Apart from several morphological, phonetic, and grammatical differences, the largely common vocabulary and generally analogous rules of grammatical fundamentals allows users of one variant to understand the other as long as they are fluent in one of the literary standards. After World War I, the existence of the two modern versions of the same language was sanctioned even more clearly. The Armenian Soviet Socialist Republic (1920–1990) used Eastern Armenian as its official language, whereas the diaspora created after the Armenian genocide preserved the Western Armenian dialect. The two modern literary dialects, Western (originally associated with writers in the Ottoman Empire) and Eastern (originally associated with writers in the Russian Empire), removed almost all of their Turkish lexical influences in the 20th century, primarily following the Armenian genocide. Geographic distribution In addition to Armenia and Turkey, where it is indigenous, Armenian is spoken among the diaspora. According to Ethnologue, globally there are million Western Armenian speakers and million Eastern Armenian speakers, totalling million Armenian speakers. In Georgia, Armenian speakers are concentrated in Ninotsminda and Akhalkalaki districts where they represent over 90% of the population. Status and usage The short-lived First Republic of Armenia declared Armenian its official language. Eastern Armenian was then dominating in institutions and among the population. When Armenia was incorporated into the USSR, the Armenian Soviet Socialist Republic made Eastern Armenian the language of the courts, government institutions and schools. Armenia was also russified. The current Republic of Armenia upholds the official status of the Armenian language. Eastern Armenian is the official variant used, making it the prestige variety while other variants have been excluded from national institutions. Indeed, Western Armenian is perceived by some as a mere dialect. Armenian is also official in the Republic of Artsakh. It is recognized as an official language of the Eurasian Economic Union although Russian is the working language. Armenian (without reference to a specific variety) is officially recognized as a minority language in Cyprus, Hungary, Iraq, Poland, Romania, and Ukraine. It is recognized as a minority language and protected in Turkey by the 1923 Treaty of Lausanne. Western Armenian is the language of the diaspora, it is the medium of instruction in the majority of Armenian-language schools outside Armenia. In particular, in the Samtskhe-Javakheti region of Georgia, although Armenian has no legal status, there were 144 state-funded schools in the area as of 2010 where Armenian is the main language of instruction. The Lebanese curriculum allows Armenian schools to teach the Armenian language as a basic language. In California, home to a large Armenian American community, various state government agencies provide Armenian translations of their documents: the California Department of Social Services, California Department of Motor Vehicles, California superior courts. In the city of Glendale, there are street signs in Armenian. In Iran, article 15 of the constitution allows the use of "regional and tribal languages" in the mass media as well as within the schools. However, these languages do not receive formal status and are not officially regulated by the authorities. Iranian Armenians are de facto the only non-Persian ethnic group in Iran enjoying this right. They have their own private schools, where Armenian is the medium of instruction. Phonology Proto-Indo-European voiceless stop consonants are aspirated in the Proto-Armenian language, one of the circumstances that is often linked to the glottalic theory, a version of which postulated that some voiceless occlusives of Proto-Indo-European were aspirated. Stress In Armenian, the stress falls on the last syllable unless the last syllable contains the definite article or , and the possessive articles and , in which case it falls on the penultimate one. For instance, , , but and . Exceptions to this rule are some words with the final letter ( in the reformed orthography) () and sometimes the ordinal numerals (, etc.), as well as , and a small number of other words. Vowels Modern Armenian has six monophthongs. Each vowel phoneme in the table is represented by three symbols. The first is the sounds transcription in the International Phonetic Alphabet (IPA). After that appears the corresponding letter of the Armenian alphabet. The last symbol is its Latin transliteration. Western and other dialects may also have /, /. Consonants The following table lists the Eastern Armenian consonantal system. The occlusives and affricates have an aspirated series, commonly transcribed with a reversed apostrophe after the letter. Each phoneme in the table is represented by IPA, Armenian script and romanization. The major phonetic difference between dialects is in the reflexes of Classical Armenian voice-onset time. The seven dialect types have the following correspondences, illustrated with the t–d series: {| class="wikitable" style=text-align:center |+Correspondence in initial position !Armenian Letter |Թ |Տ |Դ |- !Indo-European |* |* |* |- !Karin, Sebastia | rowspan="7" | | | |- !Istanbul |colspan=2| |- !Kharberd, Middle Armenian | rowspan="2" | | |- !Malatya, SWA | |- !Classical Armenian, Agulis, SEA, Yerevan | | |- !Van, Artsakh |colspan=2| |} Morphology Armenian corresponds with other Indo-European languages in its structure, but it shares distinctive sounds and features of its grammar with neighboring languages of the Caucasus region. The Armenian orthography is rich in combinations of consonants, but in pronunciation, this is broken up with schwas. Both classical Armenian and the modern spoken and literary dialects have a complicated system of noun declension, with six or seven noun cases but no gender. In modern Armenian, the use of auxiliary verbs to show tense (comparable to will in "he will go") has generally supplanted the inflected verbs of Classical Armenian. Negative verbs are conjugated differently from positive ones (as in English "he goes" and "he does not go") in many tenses, otherwise adding only the negative to the positive conjugation. Grammatically, early forms of Armenian had much in common with classical Greek and Latin, but the modern language, like modern Greek, has undergone many transformations, adding some analytic features. Noun Armenian has no grammatical gender, not even in the pronoun, but there is a feminine suffix ( "-uhi"). For example, (usucʻičʻ, "teacher") becomes (usucʻčʻuhi, female teacher). This suffix does not have a grammatical effect on the sentence. The nominal inflection reserves several types of inherited stem classes. Historically, nouns were declined for one of seven cases: nominative (ուղղական uġġakan), accusative (հայցական haycʻakan), locative (ներգոյական nergoyakan), genitive (սեռական seṙakan), dative (տրական trakan), ablative (բացառական bacʻaṙakan), or instrumental (գործիական gorciakan), but in the modern language, the nominative and accusative cases, as well as the dative and genitive cases, have merged. Examples of noun declension in Eastern Armenian Which case the direct object takes is split based on animacy (a phenomenon more generally known as differential object marking). Inanimate nouns take the nominative, while animate nouns take the dative. Additionally, animate nouns can never take the locative case. Examples of noun declension in Western Armenian Verb Verbs in Armenian have an expansive system of conjugation with two main verb types in Eastern Armenian and three in Western Armenian changing form based on tense, mood and aspect. Dialects Armenian is a pluricentric language, having two modern standardized forms: Eastern Armenian and Western Armenian. The most distinctive feature of Western Armenian is that it has undergone several phonetic mergers; these may be due to proximity to Arabic- and Turkish-speaking communities. Classical Armenian (Grabar), which remained the standard until the 18th century, was quite homogeneous across the different regions that works in it were written; it may have been a cross-regional standard. The Middle Armenian variety used in the court of Cilician Armenia (1080–1375) provides a window into the development of Western Armenian, which came to be based on what became the dialect of Istanbul, while the standard for Eastern Armenian was based on the dialect around Mount Ararat and Yerevan. Although the Armenian language is often divided into "east" and "west", the two standards are actually relatively close to each other in light of wealth of the diversity present among regional non-standard Armenian dialects. The different dialects have experienced different degrees of language contact effects, often with Turkic and Caucasian languages; for some, the result has been significant phonological and syntactic changes. Fortson notes that the modern standard as well has now attained a subordinate clausal structure that greatly resembles a Turkic language. Eastern Armenian speakers pronounce () as [tʰ], () as [d], and () as a tenuis occlusive [t˭]. Western Armenian has simplified the occlusive system into a simple division between voiced occlusives and aspirated ones; the first series corresponds to the tenuis series of Eastern Armenian, and the second corresponds to the Eastern voiced and aspirated series. Thus, the Western dialect pronounces both () and () as [tʰ], and the () letter as [d]. There is no precise linguistic border between one dialect and another because there is nearly always a dialect transition zone of some size between pairs of geographically identified dialects. Armenian can be divided into two major dialectal blocks and those blocks into individual dialects, though many of the Western Armenian dialects have become extinct due to the effects of the Armenian genocide. In addition, neither dialect is completely homogeneous: any dialect can be subdivided into several subdialects. Although Western and Eastern Armenian are often described as different dialects of the same language, many subdialects are not readily mutually intelligible. Nevertheless, a fluent speaker of one of two greatly varying dialects who is also literate in one of the standards, when exposed to the other dialect for a period of time will be able to understand the other with relative ease. Distinct Western Armenian varieties currently in use include Homshetsi, spoken by the Hemshin peoples; the dialects of Armenians of Kessab (Քեսապի բարբառ), Latakia and Jisr al-Shughur (Syria), Anjar, Lebanon, and Vakıflı, Samandağ (Turkey), part of the "Sueidia" dialect (Սուէտիայի բարբառ). Forms of the Karin dialect of Western Armenian are spoken by several hundred thousand people in Northern Armenia, mostly in Gyumri, Artik, Akhuryan, and around 130 villages in Shirak Province, and by Armenians in Samtskhe–Javakheti province of Georgia (Akhalkalaki, Akhaltsikhe). Nakhichevan-on-Don Armenians speak another Western Armenian variety based on the dialect of Armenians in Crimea, where they came from in order to establish the town and surrounding villages in 1779 (Նոր Նախիջևանի բարբառ). Western Armenian dialects are currently spoken also in Gavar (formerly Nor Bayazet and Kamo, on the western shore of Lake Sevan), Aparan, and Talin in Armenia (Mush dialect), and by the large Armenian population residing in Abkhazia, where they are considered to be the first or second ethnic minority, or even equal in number to the local Abkhaz population Orthography The Armenian alphabet ( or ) is a graphically unique alphabetical writing system that is used to write the Armenian language. It was introduced around AD 405 by Mesrop Mashtots, an Armenian linguist and ecclesiastical leader, and originally contained 36 letters. Two more letters, օ (ō) and ֆ (f), were added in the Middle Ages. During the 1920s orthography reform in Soviet Armenia, a new letter և (capital ԵՎ) was added, which was a ligature before ե+ւ, whereas the letter Ւ ւ was discarded and reintroduced as part of a new letter ՈՒ ու (which was a digraph before). This alphabet and associated orthography is used by most Armenian speakers of Armenia and the countries of the former Soviet Union. Neither the alphabet nor the orthography has been adopted by Diaspora Armenians, including Eastern Armenian speakers of Iran and all Western Armenian speakers, who keep using the traditional alphabet and spelling. Vocabulary Indo-European cognates Armenian is an Indo-European language, so many of its Proto-Indo-European-descended words are cognates of words in other Indo-European languages such as English, Latin, Greek, and Sanskrit. Due to extensive loaning, only around 1,500 words (G. Jahukyan) are known to have been inherited from Indo-European by the Classical Armenian stage; the rest were lost, a fact that presents a major challenge to endeavors to better understand Proto-Armenian and its place within the family, especially as many of the sound changes along the way from Indo-European to Armenian remain quite difficult to analyze. This table lists some of the more recognizable cognates that Armenian shares with English words descended from Old English. See also Armenian PowerSpell, electronic text corrector Armenian Sign Language Auguste Carrière Languages of Armenia Language families and languages List of Indo-European languages Classical Armenian orthography Notes Footnotes References Further reading Adjarian, Hrachya H. (1909) Classification des dialectes arméniens, par H. Adjarian. Paris: Honoré Champion. Clackson, James. 1994. The Linguistic Relationship Between Armenian and Greek. London: Publications of the Philological Society, No 30. (and Oxford: Blackwell Publishing) Holst, Jan Henrik (2009) Armenische Studien. Wiesbaden: Harrassowitz. Mallory, J. P. (1989) In Search of the Indo-Europeans: Language, Archaeology and Myth. London: Thames & Hudson. Vaux, Bert. 1998. The Phonology of Armenian. Oxford: Clarendon Press. Vaux, Bert. 2002. "The Armenian dialect of Jerusalem". In Armenians in the Holy Land. Louvain: Peters. External links Armenian Lessons () (free online through the Linguistics Research Center at UT Austin) Armenian Swadesh list of basic vocabulary words (from Wiktionary's Swadesh list appendix) ARMENIA AND IRAN iv. History, discussion, and the presentation of Iranian influences in Armenian Language over the millennia Nayiri.com (Library of Armenian dictionaries) dictionaries.arnet.am Collection of Armenian XDXF and Stardict dictionaries Grabar (Brief introduction to Classical Armenian also known as Grabar) բառարան.հայ – Armenian dictionary Articles containing video clips Indo-European languages Languages attested from the 5th century Languages of Armenia Languages of Azerbaijan Languages of Cyprus Languages of Georgia (country) Languages of Iran Languages of Kazakhstan Languages of Kurdistan Languages of Lebanon Languages of Russia Languages of the Caucasus Languages of Turkey Subject–object–verb languages

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https://en.wikipedia.org/wiki/Additive%20synthesis

Additive synthesis

Additive synthesis is a sound synthesis technique that creates timbre by adding sine waves together. The timbre of musical instruments can be considered in the light of Fourier theory to consist of multiple harmonic or inharmonic partials or overtones. Each partial is a sine wave of different frequency and amplitude that swells and decays over time due to modulation from an ADSR envelope or low frequency oscillator. Additive synthesis most directly generates sound by adding the output of multiple sine wave generators. Alternative implementations may use pre-computed wavetables or the inverse fast Fourier transform. Explanation The sounds that are heard in everyday life are not characterized by a single frequency. Instead, they consist of a sum of pure sine frequencies, each one at a different amplitude. When humans hear these frequencies simultaneously, we can recognize the sound. This is true for both "non-musical" sounds (e.g. water splashing, leaves rustling, etc.) and for "musical sounds" (e.g. a piano note, a bird's tweet, etc.). This set of parameters (frequencies, their relative amplitudes, and how the relative amplitudes change over time) are encapsulated by the timbre of the sound. Fourier analysis is the technique that is used to determine these exact timbre parameters from an overall sound signal; conversely, the resulting set of frequencies and amplitudes is called the Fourier series of the original sound signal. In the case of a musical note, the lowest frequency of its timbre is designated as the sound's fundamental frequency. For simplicity, we often say that the note is playing at that fundamental frequency (e.g. "middle C is 261.6 Hz"), even though the sound of that note consists of many other frequencies as well. The set of the remaining frequencies is called the overtones (or the harmonics, if their frequencies are integer multiples of the fundamental frequency) of the sound. In other words, the fundamental frequency alone is responsible for the pitch of the note, while the overtones define the timbre of the sound. The overtones of a piano playing middle C will be quite different from the overtones of a violin playing the same note; that's what allows us to differentiate the sounds of the two instruments. There are even subtle differences in timbre between different versions of the same instrument (for example, an upright piano vs. a grand piano). Additive synthesis aims to exploit this property of sound in order to construct timbre from the ground up. By adding together pure frequencies (sine waves) of varying frequencies and amplitudes, we can precisely define the timbre of the sound that we want to create. Definitions Harmonic additive synthesis is closely related to the concept of a Fourier series which is a way of expressing a periodic function as the sum of sinusoidal functions with frequencies equal to integer multiples of a common fundamental frequency. These sinusoids are called harmonics, overtones, or generally, partials. In general, a Fourier series contains an infinite number of sinusoidal components, with no upper limit to the frequency of the sinusoidal functions and includes a DC component (one with frequency of 0 Hz). Frequencies outside of the human audible range can be omitted in additive synthesis. As a result, only a finite number of sinusoidal terms with frequencies that lie within the audible range are modeled in additive synthesis. A waveform or function is said to be periodic if for all and for some period . The Fourier series of a periodic function is mathematically expressed as: where is the fundamental frequency of the waveform and is equal to the reciprocal of the period, is the amplitude of the th harmonic, is the phase offset of the th harmonic. atan2 is the four-quadrant arctangent function, Being inaudible, the DC component, , and all components with frequencies higher than some finite limit, , are omitted in the following expressions of additive synthesis. Harmonic form The simplest harmonic additive synthesis can be mathematically expressed as: where is the synthesis output, , , and are the amplitude, frequency, and the phase offset, respectively, of the th harmonic partial of a total of harmonic partials, and is the fundamental frequency of the waveform and the frequency of the musical note. Time-dependent amplitudes More generally, the amplitude of each harmonic can be prescribed as a function of time, , in which case the synthesis output is Each envelope should vary slowly relative to the frequency spacing between adjacent sinusoids. The bandwidth of should be significantly less than . Inharmonic form Additive synthesis can also produce inharmonic sounds (which are aperiodic waveforms) in which the individual overtones need not have frequencies that are integer multiples of some common fundamental frequency. While many conventional musical instruments have harmonic partials (e.g. an oboe), some have inharmonic partials (e.g. bells). Inharmonic additive synthesis can be described as where is the constant frequency of th partial. Time-dependent frequencies In the general case, the instantaneous frequency of a sinusoid is the derivative (with respect to time) of the argument of the sine or cosine function. If this frequency is represented in hertz, rather than in angular frequency form, then this derivative is divided by . This is the case whether the partial is harmonic or inharmonic and whether its frequency is constant or time-varying. In the most general form, the frequency of each non-harmonic partial is a non-negative function of time, , yielding Broader definitions Additive synthesis more broadly may mean sound synthesis techniques that sum simple elements to create more complex timbres, even when the elements are not sine waves. For example, F. Richard Moore listed additive synthesis as one of the "four basic categories" of sound synthesis alongside subtractive synthesis, nonlinear synthesis, and physical modeling. In this broad sense, pipe organs, which also have pipes producing non-sinusoidal waveforms, can be considered as a variant form of additive synthesizers. Summation of principal components and Walsh functions have also been classified as additive synthesis. Implementation methods Modern-day implementations of additive synthesis are mainly digital. (See section Discrete-time equations for the underlying discrete-time theory) Oscillator bank synthesis Additive synthesis can be implemented using a bank of sinusoidal oscillators, one for each partial. Wavetable synthesis In the case of harmonic, quasi-periodic musical tones, wavetable synthesis can be as general as time-varying additive synthesis, but requires less computation during synthesis. As a result, an efficient implementation of time-varying additive synthesis of harmonic tones can be accomplished by use of wavetable synthesis. Group additive synthesis Group additive synthesis is a method to group partials into harmonic groups (having different fundamental frequencies) and synthesize each group separately with wavetable synthesis before mixing the results. Inverse FFT synthesis An inverse fast Fourier transform can be used to efficiently synthesize frequencies that evenly divide the transform period or "frame". By careful consideration of the DFT frequency-domain representation it is also possible to efficiently synthesize sinusoids of arbitrary frequencies using a series of overlapping frames and the inverse fast Fourier transform. Additive analysis/resynthesis It is possible to analyze the frequency components of a recorded sound giving a "sum of sinusoids" representation. This representation can be re-synthesized using additive synthesis. One method of decomposing a sound into time varying sinusoidal partials is short-time Fourier transform (STFT)-based McAulay-Quatieri Analysis. By modifying the sum of sinusoids representation, timbral alterations can be made prior to resynthesis. For example, a harmonic sound could be restructured to sound inharmonic, and vice versa. Sound hybridisation or "morphing" has been implemented by additive resynthesis. Additive analysis/resynthesis has been employed in a number of techniques including Sinusoidal Modelling, Spectral Modelling Synthesis (SMS), and the Reassigned Bandwidth-Enhanced Additive Sound Model. Software that implements additive analysis/resynthesis includes: SPEAR, LEMUR, LORIS, SMSTools, ARSS. Products New England Digital Synclavier had a resynthesis feature where samples could be analyzed and converted into "timbre frames" which were part of its additive synthesis engine. Technos acxel, launched in 1987, utilized the additive analysis/resynthesis model, in an FFT implementation. Also a vocal synthesizer, Vocaloid have been implemented on the basis of additive analysis/resynthesis: its spectral voice model called Excitation plus Resonances (EpR) model is extended based on Spectral Modeling Synthesis (SMS), and its diphone concatenative synthesis is processed using spectral peak processing (SPP) technique similar to modified phase-locked vocoder (an improved phase vocoder for formant processing). Using these techniques, spectral components (formants) consisting of purely harmonic partials can be appropriately transformed into desired form for sound modeling, and sequence of short samples (diphones or phonemes) constituting desired phrase, can be smoothly connected by interpolating matched partials and formant peaks, respectively, in the inserted transition region between different samples. (See also Dynamic timbres) Applications Musical instruments Additive synthesis is used in electronic musical instruments. It is the principal sound generation technique used by Eminent organs. Speech synthesis In linguistics research, harmonic additive synthesis was used in 1950s to play back modified and synthetic speech spectrograms. Later, in early 1980s, listening tests were carried out on synthetic speech stripped of acoustic cues to assess their significance. Time-varying formant frequencies and amplitudes derived by linear predictive coding were synthesized additively as pure tone whistles. This method is called sinewave synthesis. Also the composite sinusoidal modeling (CSM) used on a singing speech synthesis feature on Yamaha CX5M (1984), is known to use a similar approach which was independently developed during 1966–1979. These methods are characterized by extraction and recomposition of a set of significant spectral peaks corresponding to the several resonance modes occurred in the oral cavity and nasal cavity, in a viewpoint of acoustics. This principle was also utilized on a physical modeling synthesis method, called modal synthesis. History Harmonic analysis was discovered by Joseph Fourier, who published an extensive treatise of his research in the context of heat transfer in 1822. The theory found an early application in prediction of tides. Around 1876, William Thomson (later ennobled as Lord Kelvin) constructed a mechanical tide predictor. It consisted of a harmonic analyzer and a harmonic synthesizer, as they were called already in the 19th century. The analysis of tide measurements was done using James Thomson's integrating machine. The resulting Fourier coefficients were input into the synthesizer, which then used a system of cords and pulleys to generate and sum harmonic sinusoidal partials for prediction of future tides. In 1910, a similar machine was built for the analysis of periodic waveforms of sound. The synthesizer drew a graph of the combination waveform, which was used chiefly for visual validation of the analysis. Georg Ohm applied Fourier's theory to sound in 1843. The line of work was greatly advanced by Hermann von Helmholtz, who published his eight years worth of research in 1863. Helmholtz believed that the psychological perception of tone color is subject to learning, while hearing in the sensory sense is purely physiological. He supported the idea that perception of sound derives from signals from nerve cells of the basilar membrane and that the elastic appendages of these cells are sympathetically vibrated by pure sinusoidal tones of appropriate frequencies. Helmholtz agreed with the finding of Ernst Chladni from 1787 that certain sound sources have inharmonic vibration modes. In Helmholtz's time, electronic amplification was unavailable. For synthesis of tones with harmonic partials, Helmholtz built an electrically excited array of tuning forks and acoustic resonance chambers that allowed adjustment of the amplitudes of the partials. Built at least as early as in 1862, these were in turn refined by Rudolph Koenig, who demonstrated his own setup in 1872. For harmonic synthesis, Koenig also built a large apparatus based on his wave siren. It was pneumatic and utilized cut-out tonewheels, and was criticized for low purity of its partial tones. Also tibia pipes of pipe organs have nearly sinusoidal waveforms and can be combined in the manner of additive synthesis. In 1938, with significant new supporting evidence, it was reported on the pages of Popular Science Monthly that the human vocal cords function like a fire siren to produce a harmonic-rich tone, which is then filtered by the vocal tract to produce different vowel tones. By the time, the additive Hammond organ was already on market. Most early electronic organ makers thought it too expensive to manufacture the plurality of oscillators required by additive organs, and began instead to build subtractive ones. In a 1940 Institute of Radio Engineers meeting, the head field engineer of Hammond elaborated on the company's new Novachord as having a "subtractive system" in contrast to the original Hammond organ in which "the final tones were built up by combining sound waves". Alan Douglas used the qualifiers additive and subtractive to describe different types of electronic organs in a 1948 paper presented to the Royal Musical Association. The contemporary wording additive synthesis and subtractive synthesis can be found in his 1957 book The electrical production of music, in which he categorically lists three methods of forming of musical tone-colours, in sections titled Additive synthesis, Subtractive synthesis, and Other forms of combinations. A typical modern additive synthesizer produces its output as an electrical, analog signal, or as digital audio, such as in the case of software synthesizers, which became popular around year 2000. Timeline The following is a timeline of historically and technologically notable analog and digital synthesizers and devices implementing additive synthesis. Discrete-time equations In digital implementations of additive synthesis, discrete-time equations are used in place of the continuous-time synthesis equations. A notational convention for discrete-time signals uses brackets i.e. and the argument can only be integer values. If the continuous-time synthesis output is expected to be sufficiently bandlimited; below half the sampling rate or , it suffices to directly sample the continuous-time expression to get the discrete synthesis equation. The continuous synthesis output can later be reconstructed from the samples using a digital-to-analog converter. The sampling period is . Beginning with (), and sampling at discrete times results in where is the discrete-time varying amplitude envelope is the discrete-time backward difference instantaneous frequency. This is equivalent to where for all and See also Frequency modulation synthesis Subtractive synthesis Speech synthesis Harmonic series (music) References External links Digital Keyboards Synergy Sound synthesis types

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https://en.wikipedia.org/wiki/Aircraft%20carrier

Aircraft carrier

An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a naval force to project air power worldwide without depending on local bases for staging aircraft operations. Carriers have evolved since their inception in the early twentieth century from wooden vessels used to deploy balloons to nuclear-powered warships that carry numerous fighters, strike aircraft, helicopters, and other types of aircraft. While heavier aircraft such as fixed-wing gunships and bombers have been launched from aircraft carriers, these aircraft have not landed on a carrier. By its diplomatic and tactical power, its mobility, its autonomy and the variety of its means, the aircraft carrier is often the centerpiece of modern combat fleets. Tactically or even strategically, it replaced the battleship in the role of flagship of a fleet. One of its great advantages is that, by sailing in international waters, it does not interfere with any territorial sovereignty and thus obviates the need for overflight authorizations from third-party countries, reduces the times and transit distances of aircraft and therefore significantly increases the time of availability on the combat zone. There is no single definition of an "aircraft carrier", and modern navies use several variants of the type. These variants are sometimes categorized as sub-types of aircraft carriers, and sometimes as distinct types of naval aviation-capable ships. Aircraft carriers may be classified according to the type of aircraft they carry and their operational assignments. Admiral Sir Mark Stanhope, RN, former First Sea Lord (head) of the Royal Navy, has said, "To put it simply, countries that aspire to strategic international influence have aircraft carriers." Henry Kissinger, while United States Secretary of State, also said: "An aircraft carrier is 100,000 tons of diplomacy." As of , there are 47 active aircraft carriers in the world operated by fourteen navies. The United States Navy has 11 large nuclear-powered fleet carriers—carrying around 80 fighters each—the largest carriers in the world; the total combined deck space is over twice that of all other nations combined. As well as the aircraft carrier fleet, the US Navy has nine amphibious assault ships used primarily for helicopters, although these also each carry up to 20 vertical or short take-off and landing (V/STOL) fighter jets and are similar in size to medium-sized fleet carriers. The United Kingdom, India and China each operate two aircraft carriers. France and Russia each operate a single aircraft carrier with a capacity of 30 to 60 fighters. Italy operates two light V/STOL carriers and Spain operates one V/STOL aircraft-carrying assault ship. Helicopter carriers are operated by Japan (4, two of which are being converted to operate V/STOL fighters), France (3), Australia (2), Egypt (2), South Korea (2), China (3), Thailand (1) and Brazil (1). Future aircraft carriers are under construction or in planning by China, France, India, Russia, South Korea, Turkey, and the US. Types of carriers General features Speed is a crucial attribute for aircraft carriers, as they need to be able to be deployed quickly anywhere in the world and have to be fast enough to evade detection and targeting from enemy forces. A high speed also increases the "wind over the deck", boosting the lift available for fixed-wing aircraft to carry fuel and ammunition. In order to evade nuclear submarines, the carriers should have a speed of more than 30 knots. Aircraft carriers are among the largest types of warships due to their need for ample deck space. An aircraft carrier must be able to perform increasingly diverse mission sets. Diplomacy, power projection, quick crisis response force, land attack from the sea, sea base for helicopter and amphibious assault forces, anti-surface warfare (ASUW), Defensive Counter Air (DCA), and humanitarian aid disaster relief (HADR) are some of the missions the aircraft carrier is expected to accomplish. Traditionally an aircraft carrier is supposed to be one ship that can perform at least power projection and sea control missions. An aircraft carrier must be able to efficiently operate an air combat group. This means it should handle fixed-wing jets as well as helicopters. This includes ships designed to support operations of short-takeoff/vertical-landing (STOVL) jets. Basic types Aircraft cruiser Amphibious assault ship and sub-types Anti-submarine warfare carrier Balloon carrier and balloon tenders Escort carrier Fleet carrier Flight deck cruiser Helicopter carrier Light aircraft carrier Sea Control Ship Seaplane tender and seaplane carriers Utility carrier: This type was mainly used in the US Navy, in the decade after World War 2 to ferry aircraft. Some of the types listed here are not strictly defined as aircraft carriers by some sources. By role A fleet carrier is intended to operate with the main fleet and usually provides an offensive capability. These are the largest carriers capable of fast speeds. By comparison, escort carriers were developed to provide defense for convoys of ships. They were smaller and slower with lower numbers of aircraft carried. Most were built from mercantile hulls or, in the case of merchant aircraft carriers, were bulk cargo ships with a flight deck added on top. Light aircraft carriers were fast enough to operate with the main fleet but of smaller size with reduced aircraft capacity. The Soviet aircraft carrier Admiral Kusnetsov was termed a "heavy aircraft-carrying cruiser". This was primarily a legal construct to avoid the limitations of the Montreux Convention preventing 'aircraft carriers' transiting the Turkish Straits between the Soviet Black Sea bases and the Mediterranean Sea. These ships, while sized in the range of large fleet carriers, were designed to deploy alone or with escorts. In addition to supporting fighter aircraft and helicopters, they provide both strong defensive weaponry and heavy offensive missiles equivalent to a guided-missile cruiser. By configuration Aircraft carriers today are usually divided into the following four categories based on the way that aircraft take off and land: Catapult-assisted take-off barrier-arrested recovery (CATOBAR): these carriers generally carry the largest, heaviest, and most heavily armed aircraft, although smaller CATOBAR carriers may have other limitations (weight capacity of aircraft elevator, etc.). All CATOBAR carriers in service today are nuclear powered. Twelve are in service: ten Nimitz and one fleet carriers in the United States; and the Charles de Gaulle in France. Short take-off barrier-arrested recovery (STOBAR): these carriers are generally limited to carrying lighter fixed-wing aircraft with more limited payloads. STOBAR carrier air wings, such as the Sukhoi Su-33 and future Mikoyan MiG-29K wings of are often geared primarily towards air superiority and fleet defense roles rather than strike/power projection tasks, which require heavier payloads (bombs and air-to-ground missiles). Five are in service: two in China; two in India and one in Russia. Short take-off vertical-landing (STOVL): limited to carrying STOVL aircraft. STOVL aircraft, such as the Harrier family and Yakovlev Yak-38 generally have limited payloads, lower performance, and high fuel consumption when compared with conventional fixed-wing aircraft; however, a new generation of STOVL aircraft, currently consisting of the Lockheed Martin F-35B Lightning II, has much improved performance. Fourteen are in service; nine STOVL amphibious assault ships in the US; two carriers each in Italy and the UK; and one STOVL amphibious assault ship in Spain. Helicopter carrier: Helicopter carriers have a similar appearance to other aircraft carriers but operate only helicopters – those that mainly operate helicopters but can also operate fixed-wing aircraft are known as STOVL carriers (see above). Seventeen are in service: four in Japan; three in France; two each in Australia, China, Egypt and South Korea; and one each in Brazil and Thailand. In the past, some conventional carriers were converted and these were called "commando carriers" by the Royal Navy. Some helicopter carriers, but not all, are classified as amphibious assault ships, tasked with landing and supporting ground forces on enemy territory. By size Fleet carrier Light aircraft carrier Escort carrier Supercarrier The appellation "supercarrier" is not an official designation with any national navy, but a term used predominantly by the media and typically when reporting on larger and more advanced carrier types. It is also used when comparing carriers of various sizes and capabilities, both current and past. It was first used by The New York Times in 1938, in an article about the Royal Navy's , that had a length of , a displacement of 22,000 ton and was designed to carry 72 aircraft. Since then, aircraft carriers have consistently grown in size, both in length and displacement, as well as improved capabilities; in defense, sensors, electronic warfare, propulsion, range, launch and recovery systems, number and types of aircraft carried and number of sorties flown per day. China, Russia, and the United Kingdom all have carriers in service or under construction with displacements ranging from 65,000 to 85,000 tons and lengths from which have been described as "supercarriers". The largest "supercarriers" in service as of 2022, however, are with the US Navy, with displacements exceeding 100,000 tons, lengths of over , and capabilities that match or exceed that of any other class. Hull type identification symbols Several systems of identification symbol for aircraft carriers and related types of ship have been used. These include the pennant numbers used by the Royal Navy, Commonwealth countries, and Europe, along with the hull classification symbols used by the US and Canada. History Origins The 1903 advent of the heavier-than-air fixed-wing airplane with the Wright brothers' first flight at Kitty Hawk, North Carolina, was closely followed on 14 November 1910, by Eugene Burton Ely's first experimental take-off of a Curtiss Pusher airplane from the deck of a United States Navy ship, the cruiser anchored off Norfolk Navy Base in Virginia. Two months later, on 18 January 1911, Ely landed his Curtiss Pusher airplane on a platform on the armored cruiser anchored in San Francisco Bay. On 9 May 1912, the first take off of an airplane from a ship while underway was made by Commander Charles Samson flying a Short Improved S.27 biplane "S.38" of the Royal Naval Air Service (RNAS) from the deck of the Royal Navy's pre-dreadnought battleship , thus providing the first practical demonstration of the aircraft carrier for naval operations at sea. Seaplane tender support ships came next, with the French of 1911. Early in World War I, the Imperial Japanese Navy ship conducted the world's first successful ship-launched air raid: on 6 September 1914, a Farman aircraft launched by Wakamiya attacked the Austro-Hungarian cruiser and the Imperial German gunboat Jaguar in Jiaozhou Bay off Qingdao; neither was hit. The first attack using an air-launched torpedo occurred on 2 August, when a torpedo was fired by Flight Commander Charles H. K. Edmonds from a Short Type 184 seaplane, launched from the seaplane carrier . The first carrier-launched airstrike was the Tondern raid in July 1918. Seven Sopwith Camels were launched from the battlecruiser which had been completed as a carrier by replacing her planned forward turret with a flight deck and hangar prior to commissioning. The Camels attacked and damaged the German airbase at Tondern, Germany (modern day Tønder, Denmark) and destroyed two zeppelin airships. The first landing of an airplane on a moving ship was by Squadron Commander Edwin Harris Dunning, when he landed his Sopwith Pup on HMS Furious in Scapa Flow, Orkney on 2 August 1917. Landing on the forward flight deck required the pilot to approach round the ship's superstructure, a difficult and dangerous manoeuver and Dunning was later killed when his airplane was thrown overboard while attempting another landing on Furious. HMS Furious was modified again when her rear turret was removed and another flight deck added over a second hangar for landing aircraft over the stern. Her funnel and superstructure remained intact however and turbulence from the funnel and superstructure was severe enough that only three landing attempts were successful before further attempts were forbidden. This experience prompted the development of vessels with a flush deck and produced the first large fleet ships. In 1918, became the world's first carrier capable of launching and recovering naval aircraft. As a result of the Washington Naval Treaty of 1922, which limited the construction of new heavy surface combat ships, most early aircraft carriers were conversions of ships that were laid down (or had served) as different ship types: cargo ships, cruisers, battlecruisers, or battleships. These conversions gave rise to the US s (1927), Japanese and , and British . Specialist carrier evolution was well underway, with several navies ordering and building warships that were purposefully designed to function as aircraft carriers by the mid-1920s. This resulted in the commissioning of ships such as the Japanese (1922), (1924, although laid down in 1918 before Hōshō), and (1927). During World War II, these ships would become known as fleet carriers. World War II The aircraft carrier dramatically changed naval warfare in World War II, because air power was becoming a significant factor in warfare. The advent of aircraft as focal weapons was driven by the superior range, flexibility, and effectiveness of carrier-launched aircraft. They had greater range and precision than naval guns, making them highly effective. The versatility of the carrier was demonstrated in November 1940, when launched a long-range strike on the Italian fleet at their base in Taranto, signalling the beginning of the effective and highly mobile aircraft strikes. This operation in the shallow water harbor incapacitated three of the six anchored battleships at a cost of two torpedo bombers. World War II in the Pacific Ocean involved clashes between aircraft carrier fleets. The Japanese surprise attack on the American Pacific fleet at Pearl Harbor naval and air bases on Sunday, 7 December 1941, was a clear illustration of the power projection capability afforded by a large force of modern carriers. Concentrating six carriers in a single unit turned naval history about, as no other nation had fielded anything comparable. Further versatility was demonstrated during the "Doolittle Raid", on 18 April 1942, when US Navy carrier sailed to within of Japan and launched 16 B-25 bombers from her deck in a retaliatory strike on the mainland, including the capital, Tokyo. However, the vulnerability of carriers compared to traditional battleships when forced into a gun-range encounter was quickly illustrated by the sinking of by German battleships during the Norwegian campaign in 1940. This new-found importance of naval aviation forced nations to create a number of carriers, in efforts to provide air superiority cover for every major fleet in order to ward off enemy aircraft. This extensive usage led to the development and construction of 'light' carriers. Escort aircraft carriers, such as , were sometimes purpose-built but most were converted from merchant ships as a stop-gap measure to provide anti-submarine air support for convoys and amphibious invasions. Following this concept, light aircraft carriers built by the US, such as , represented a larger, more "militarized" version of the escort carrier. Although with similar complement to escort carriers, they had the advantage of speed from their converted cruiser hulls. The UK 1942 Design Light Fleet Carrier was designed for building quickly by civilian shipyards and with an expected service life of about 3 years. They served the Royal Navy during the war, and the hull design was chosen for nearly all aircraft carrier equipped navies after the war, until the 1980s. Emergencies also spurred the creation or conversion of highly unconventional aircraft carriers. CAM ships were cargo-carrying merchant ships that could launch (but not retrieve) a single fighter aircraft from a catapult to defend the convoy from long range land-based German aircraft. Postwar era Before World War II, international naval treaties of 1922, 1930, and 1936 limited the size of capital ships including carriers. Since World War II, aircraft carrier designs have increased in size to accommodate a steady increase in aircraft size. The large, modern of US Navy carriers has a displacement nearly four times that of the World War II–era , yet its complement of aircraft is roughly the same—a consequence of the steadily increasing size and weight of individual military aircraft over the years. Today's aircraft carriers are so expensive that some nations which operate them risk significant economic and military impact if a carrier is lost. Some changes were made after 1945 in carriers: The angled flight deck was invented by Royal Navy Captain (later Rear Admiral) Dennis Cambell, as naval aviation jets higher speeds required carriers be modified to "fit" their needs. Additionally, the angled flight deck allows for simultaneous launch and recovery. Jet blast deflectors became necessary to protect aircraft and handlers from jet blast. The first US Navy carriers to be fitted with them were the wooden-decked s which were adapted to operate jets in the late 1940s. Later versions had to be water-cooled because of increasing engine power. Optical landing systems were developed to facilitate the very precise landing angles required by jet aircraft, which have a faster landing speed giving the pilot little time to correct misalignments, or mistakes. The first system was fitted to in 1952. Aircraft carrier designs have increased in size to accommodate continuous increase in aircraft size. The 1950s saw US Navy's commission of "supercarriers", designed to operate naval jets, which offered better performance at the expense of bigger size and demanded more ordnance to be carried on-board (fuel, spare parts, electronics, etc.). The combination of increased carrier size, speed requirements above 30 knots, and a requirement to operate at sea for long periods mean that modern large aircraft carriers often use nuclear reactors to create power for propulsion, electricity, catapulting airplanes from aircraft carriers, and a few more minor uses. Modern navies that operate such aircraft carriers treat them as capital ships of fleets, a role previously held by the galleons, ships-of-the-line and battleships. This change took place during World War II in response to air power becoming a significant factor in warfare, driven by the superior range, flexibility and effectiveness of carrier-launched aircraft. Following the war, carrier operations continued to increase in size and importance, and along with, carrier designs also increased in size and ability. Some of these larger carriers, dubbed by the media as "supercarriers", displacing 75,000 tons or greater, have become the pinnacle of carrier development. Some are powered by nuclear reactors and form the core of a fleet designed to operate far from home. Amphibious assault ships, such as the and classes, serve the purpose of carrying and landing Marines, and operate a large contingent of helicopters for that purpose. Also known as "commando carriers" or "helicopter carriers", many have the capability to operate VSTOL aircraft. The threatening role of aircraft carriers has a place in modern asymmetric warfare, like the gunboat diplomacy of the past. Carriers also facilitate quick and precise projections of overwhelming military power into such local and regional conflicts. Lacking the firepower of other warships, carriers by themselves are considered vulnerable to attack by other ships, aircraft, submarines, or missiles. Therefore, an aircraft carrier is generally accompanied by a number of other ships to provide protection for the relatively unwieldy carrier, to carry supplies, re-supply (Many carriers are self-sufficient and will supply their escorts) and perform other support services, and to provide additional offensive capabilities. The resulting group of ships is often termed a carrier strike group, battle group, carrier group, or carrier battle group. There is a view among some military pundits that modern anti-ship weapons systems, such as torpedoes and missiles, or even ballistic missiles with nuclear warheads have made aircraft carriers and carrier groups too vulnerable for modern combat. like the German U24 of the conventional 206 class which in 2001 "fired" at the Enterprise during the exercise JTFEX 01-2 in the Caribbean Sea by firing flares and taking a photograph through its periscope or the Swedish Gotland which managed the same feat in 2006 during JTFEX 06-2 by penetrating the defensive measures of Carrier Strike Group 7 which was protecting . Description Structure Carriers are large and long ships, although there is a high degree of variation depending on their intended role and aircraft complement. The size of the carrier has varied over history and among navies, to cater to the various roles that global climates have demanded from naval aviation. Regardless of size, the ship itself must house their complement of aircraft, with space for launching, storing, and maintaining them. Space is also required for the large crew, supplies (food, munitions, fuel, engineering parts), and propulsion. US aircraft carriers are notable for having nuclear reactors powering their systems and propulsion. The top of the carrier is the flight deck, where aircraft are launched and recovered. On the starboard side of this is the island, where the funnel, air-traffic control and the bridge are located. The constraints of constructing a flight deck affect the role of a given carrier strongly, as they influence the weight, type, and configuration of the aircraft that may be launched. For example, assisted launch mechanisms are used primarily for heavy aircraft, especially those loaded with air-to-ground weapons. CATOBAR is most commonly used on US Navy fleet carriers as it allows the deployment of heavy jets with full load-outs, especially on ground-attack missions. STOVL is used by other navies because it is cheaper to operate and still provides good deployment capability for fighter aircraft. Due to the busy nature of the flight deck, only 20 or so aircraft may be on it at any one time. A hangar storage several decks below the flight deck is where most aircraft are kept, and aircraft are taken from the lower storage decks to the flight deck through the use of an elevator. The hangar is usually quite large and can take up several decks of vertical space. Munitions are commonly stored on the lower decks because they are highly explosive. Usually this is below the waterline so that the area can be flooded in case of emergency. Flight deck As "runways at sea", aircraft carriers have a flat-top flight deck, which launches and recovers aircraft. Aircraft launch forward, into the wind, and are recovered from astern. The flight deck is where the most notable differences between a carrier and a land runway are found. Creating such a surface at sea poses constraints on the carrier. For example, the size of the vessel is a fundamental limitation on runway length. This affects take-off procedure, as a shorter runway length of the deck requires that aircraft accelerate more quickly to gain lift. This either requires a thrust boost, a vertical component to its velocity, or a reduced take-off load (to lower mass). The differing types of deck configuration, as above, influence the structure of the flight deck. The form of launch assistance a carrier provides is strongly related to the types of aircraft embarked and the design of the carrier itself. There are two main philosophies in order to keep the deck short: add thrust to the aircraft, such as using a Catapult Assisted Take-Off (CATO-); and changing the direction of the airplanes' thrust, as in Vertical and/or Short Take-Off (V/STO-). Each method has advantages and disadvantages of its own: Catapult assisted take-off but arrested recovery (CATOBAR): A steam- or electric-powered catapult is connected to the aircraft, and is used to accelerate conventional aircraft to a safe flying speed. By the end of the catapult stroke, the aircraft is airborne and further propulsion is provided by its own engines. This is the most expensive method as it requires complex machinery to be installed under the flight deck, but allows for even heavily loaded aircraft to take off. Short take-off but arrested recovery (STOBAR) depends on increasing the net lift on the aircraft. Aircraft do not require catapult assistance for take off; instead on nearly all ships of this type an upwards vector is provided by a ski-jump at the forward end of the flight deck, often combined with thrust vectoring by the aircraft. Alternatively, by reducing the fuel and weapon load, an aircraft is able to reach faster speeds and generate more upwards lift and launch without a ski-jump or catapult. Short take-off vertical-landing (STOVL): On aircraft carriers, non-catapult-assisted, fixed-wing short takeoffs are accomplished with the use of thrust vectoring, which may also be used in conjunction with a runway "ski-jump". Use of STOVL tends to allow aircraft to carry a larger payload as compared to during VTOL use, while still only requiring a short runway. The most famous examples are the Hawker Siddeley Harrier and the BAe Sea Harrier. Although technically VTOL aircraft, they are operationally STOVL aircraft due to the extra weight carried at take-off for fuel and armaments. The same is true of the Lockheed F-35B Lightning II, which demonstrated VTOL capability in test flights but is operationally STOVL or in the case of UK uses "shipborne rolling vertical landing" Vertical take-off and landing (VTOL): Certain aircraft are specifically designed for the purpose of using very high degrees of thrust vectoring (e.g. if the thrust to weight-force ratio is greater than 1, it can take off vertically), but are usually slower than conventionally propelled aircraft due to the additional weight from associated systems. On the recovery side of the flight deck, the adaptation to the aircraft load-out is mirrored. Non-VTOL or conventional aircraft cannot decelerate on their own, and almost all carriers using them must have arrested-recovery systems (-BAR, e.g. CATOBAR or STOBAR) to recover their aircraft. Aircraft that are landing extend a tailhook that catches on arrestor wires stretched across the deck to bring themselves to a stop in a short distance. Post-World War II Royal Navy research on safer CATOBAR recovery eventually led to universal adoption of a landing area angled off axis to allow aircraft who missed the arresting wires to "bolt" and safely return to flight for another landing attempt rather than crashing into aircraft on the forward deck. If the aircraft are VTOL-capable or helicopters, they do not need to decelerate and hence there is no such need. The arrested-recovery system has used an angled deck since the 1950s because, in case the aircraft does not catch the arresting wire, the short deck allows easier take off by reducing the number of objects between the aircraft and the end of the runway. It also has the advantage of separating the recovery operation area from the launch area. Helicopters and aircraft capable of vertical or short take-off and landing (V/STOL) usually recover by coming abreast of the carrier on the port side and then using their hover capability to move over the flight deck and land vertically without the need for arresting gear. Staff and deck operations Carriers steam at speed, up to into the wind during flight deck operations to increase wind speed over the deck to a safe minimum. This increase in effective wind speed provides a higher launch airspeed for aircraft at the end of the catapult stroke or ski-jump, as well as making recovery safer by reducing the difference between the relative speeds of the aircraft and ship. Since the early 1950s on conventional carriers it has been the practice to recover aircraft at an angle to port of the axial line of the ship. The primary function of this angled deck is to allow aircraft that miss the arresting wires, referred to as a bolter, to become airborne again without the risk of hitting aircraft parked forward. The angled deck allows the installation of one or two "waist" catapults in addition to the two bow cats. An angled deck also improves launch and recovery cycle flexibility with the option of simultaneous launching and recovery of aircraft. Conventional ("tailhook") aircraft rely upon a landing signal officer (LSO, radio call sign 'paddles') to monitor the aircraft's approach, visually gauge glideslope, attitude, and airspeed, and transmit that data to the pilot. Before the angled deck emerged in the 1950s, LSOs used colored paddles to signal corrections to the pilot (hence the nickname). From the late 1950s onward, visual landing aids such as the optical landing system have provided information on proper glide slope, but LSOs still transmit voice calls to approaching pilots by radio. Key personnel involved in the flight deck include the shooters, the handler, and the air boss. Shooters are naval aviators or naval flight officers and are responsible for launching aircraft. The handler works just inside the island from the flight deck and is responsible for the movement of aircraft before launching and after recovery. The "air boss" (usually a commander) occupies the top bridge (Primary Flight Control, also called primary or the tower) and has the overall responsibility for controlling launch, recovery and "those aircraft in the air near the ship, and the movement of planes on the flight deck, which itself resembles a well-choreographed ballet". The captain of the ship spends most of his time one level below primary on the Navigation Bridge. Below this is the Flag Bridge, designated for the embarked admiral and his staff. To facilitate working on the flight deck of a US aircraft carrier, the sailors wear colored shirts that designate their responsibilities. There are at least seven different colors worn by flight deck personnel for modern United States Navy carrier air operations. Carrier operations of other nations use similar color schemes. Deck structures The superstructure of a carrier (such as the bridge, flight control tower) are concentrated in a relatively small area called an island, a feature pioneered on in 1923. While the island is usually built on the starboard side of the flight deck, the Japanese aircraft carriers and had their islands built on the port side. Very few carriers have been designed or built without an island. The flush deck configuration proved to have significant drawbacks, primary of which was management of the exhaust from the power plant. Fumes coming across the deck were a major issue in . In addition, lack of an island meant difficulties managing the flight deck, performing air traffic control, a lack of radar housing placements and problems with navigating and controlling the ship itself. Another deck structure that can be seen is a ski-jump ramp at the forward end of the flight deck. This was first developed to help launch short take off vertical landing (STOVL) aircraft take off at far higher weights than is possible with a vertical or rolling takeoff on flat decks. Originally developed by the Royal Navy, it since has been adopted by many navies for smaller carriers. A ski-jump ramp works by converting some of the forward rolling movement of the aircraft into vertical velocity and is sometimes combined with the aiming of jet thrust partly downwards. This allows heavily loaded and fueled aircraft a few more precious seconds to attain sufficient air velocity and lift to sustain normal flight. Without a ski-jump, launching fully-loaded and fueled aircraft such as the Harrier would not be possible on a smaller flat deck ship before either stalling out or crashing directly into the sea. Although STOVL aircraft are capable of taking off vertically from a spot on the deck, using the ramp and a running start is far more fuel efficient and permits a heavier launch weight. As catapults are unnecessary, carriers with this arrangement reduce weight, complexity, and space needed for complex steam or electromagnetic launching equipment. Vertical landing aircraft also remove the need for arresting cables and related hardware. Russian, Chinese, and Indian carriers include a ski-jump ramp for launching lightly loaded conventional fighter aircraft but recover using traditional carrier arresting cables and a tailhook on their aircraft. The disadvantage of the ski-jump is the penalty it exacts on aircraft size, payload, and fuel load (and thus range); heavily laden aircraft cannot launch using a ski-jump because their high loaded weight requires either a longer takeoff roll than is possible on a carrier deck, or assistance from a catapult or JATO rocket. For example, the Russian Sukhoi Su-33 is only able to launch from the carrier with a minimal armament and fuel load. Another disadvantage is on mixed flight deck operations where helicopters are also present, such as on a US landing helicopter dock or landing helicopter assault amphibious assault ship. A ski jump is not included as this would eliminate one or more helicopter landing areas; this flat deck limits the loading of Harriers but is somewhat mitigated by the longer rolling start provided by a long flight deck compared to many STOVL carriers. National fleets The US Navy has the largest fleet of carriers in the world, with eleven supercarriers currently in service. China and India each have two STOBAR carriers in service. The UK has two STOVL carriers in service. The navies of France and Russia each operate a single medium-sized carrier. The US also has nine similarly sized Amphibious Warfare Ships. There are five small light carriers in use capable of operating both fixed-wing aircraft and helicopters; Japan and Italy each operate two, and Spain one. Additionally there are eighteen small carriers which only operate helicopters serving the navies of Australia (2), Brazil (1), China (2), Egypt (2), France (3), Japan (4), South Korea (2), Thailand (1) and Turkey (1). Algeria Current Kalaat Béni Abbès (L-474) is an amphibious transport dock of the Algerian National Navy with two deck-landing spots for helicopters. Australia Current The Royal Australian Navy operates two s. The two-ship class, based on the Spanish vessel and built by Navantia and BAE Systems Australia, represents the largest ships ever built for the Royal Australian Navy. underwent sea trials in late 2013 and was commissioned in 2014. Her sister ship, , was commissioned in December 2015. The Australian ships retain the ski-ramp from the Juan Carlos I design, although the RAN has not acquired carrier-based fixed-wing aircraft. Brazil Current In December 2017, the Brazilian Navy confirmed the purchase of for (GBP) £84.6 million (equivalent to R$359.5M and US$113.2M) and renamed her . The ship was decommissioned from Royal Navy service in March 2018. The Brazilian Navy commissioned the carrier on 29 June 2018 in the United Kingdom. After undertaking a period of maintenance in the UK, the ship travelled to its new home port, Arsenal de Marinha do Rio de Janeiro (AMRJ) in order to be fully operational by 2020. The ship displaces 21,578 tonnes, is long and has a range of . Before leaving HMNB Devonport for her new homeport in Rio's AMRJ, Atlântico underwent operational sea training under the Royal Navy's Flag Officer Sea Training (FOST) program. On 12 November 2020, Atlântico was redesignated "NAM", for "multipurpose aircraft carrier" (), from "PHM", for "multipurpose helicopter carrier" (), to reflect the ship's capability to operate with fixed-wing medium-altitude long-endurance unmanned aerial vehicles as well as crewed tiltrotor VTOL aircraft. China Current 2 STOBAR carriers: (60,900 tons) was originally built as the Soviet carrier Varyag and was later purchased as a hulk in 1998 on the pretext of use as a floating casino, then towed to China for rebuild and completion. Liaoning was commissioned on 25 September 2012 and began service for testing and training. In November 2012, Liaoning launched and recovered Shenyang J-15 naval fighter aircraft for the first time. After a refit in January 2019, she was assigned to the North Sea Fleet, a change from her previous role as a training carrier. (60,000–70,000 tons) was launched on 26 April 2017. She is the first to be built domestically, to an improved Kuznetsov-class design. Shandong started sea trials on 23 April 2018, and entered service in December 2019. 1 CATOBAR carrier: (80,000 tons) is a CATOBAR carrier which was under construction between 2015 and 2016 before being completed in June 2022. She is being fitted out as of 2022 and will commence service in 2023–2024. 3 Landing helicopter docks A Type 075 LHD, was commissioned on 23 April 2021 at the naval base in Sanya. A second ship, Guangxi, was commissioned on 26 December 2021 and a third ship, Anhui, was commissioned in October 2022. Future China has had a long-term plan to operate six large aircraft carriers with two carriers per fleet. China is planning a class of eight landing helicopter dock vessels, the Type 075 (NATO reporting name Yushen-class landing helicopter assault). This is a class of amphibious assault ship under construction by the Hudong–Zhonghua Shipbuilding company. The first ship was commissioned in April 2021. China is also planning a modified class of the same concept, the Type 076 landing helicopter dock, that will also be equipped with an electromagnetic catapult launch system. Egypt Current Egypt signed a contract with French shipbuilder DCNS to buy two helicopter carriers for approximately 950 million euros. The two ships were originally to be sold to Russia, but the deal was cancelled by France due to the Russian invasion of Ukraine. On 2 June 2016, Egypt received the first of two helicopter carriers acquired in October 2015, the landing helicopter dock . The flag transfer ceremony took place in the presence of Egyptian and French Navies' chiefs of staff, chairman and chief executive officers of both DCNS and STX France, and senior Egyptian and French officials. On 16 September 2016, DCNS delivered the second of two helicopter carriers, the landing helicopter dock which also participated in a joint military exercise with the French Navy before arriving at her home port of Alexandria. Egypt is so far the only country in Africa or the Middle East to possess a helicopter carrier. France Current The French Navy operates the 42,000-tonne nuclear-powered aircraft carrier, . Commissioned in 2001, she is the flagship of the French Navy. The ship carries a complement of Dassault Rafale M and E-2C Hawkeye aircraft, EC725 Caracal and AS532 Cougar helicopters for combat search and rescue, as well as modern electronics and Aster missiles. She is a CATOBAR-type carrier that uses two 75 m C13-3 steam catapults of a shorter version of the catapult system installed on the US carriers, one catapult at the bow and one across the front of the landing area. In addition, the French Navy operates three s. Future In October 2018, the French Ministry of Defence began an 18-month study for €40 million for the eventual future replacement of the beyond 2030. In December 2020, President Macron announced that construction of the next generation carrier would begin in around 2025 with sea trials to start in about 2036. The carrier is planned to have a displacement of around 75,000 tons and to carry about 32 next-generation fighters, two to three E-2D Advanced Hawkeyes and a yet-to-be-determined number of unmanned carrier air vehicles. India Current 2 STOBAR carriers: , 45,400 tonnes, modified Kiev class. The carrier was purchased by India on 20 January 2004 after years of negotiations at a final price of $2.35 billion (). The ship successfully completed her sea trials in July 2013 and aviation trials in September 2013. She was formally commissioned on 16 November 2013 at a ceremony held at Severodvinsk, Russia. , also known as Indigenous Aircraft Carrier 1 (IAC-1) a 45,000-tonne, aircraft carrier whose keel was laid in 2009. The new carrier will operate MiG-29K and naval HAL Tejas aircraft. The ship is powered by gas-turbines and has a range of and deploys 10 helicopters and 30 aircraft. The ship was launched in 2013, sea-trials began in August 2021 and was commissioned on 02 September 2022. Future India has plans for a third carrier, , also known as Indigenous Aircraft Carrier 2 (IAC-2) with a displacement of over 65,000 tonnes and is planned with a CATOBAR system to launch and recover heavier aircraft. India has also issued a request for information (RFI) to procure four Landing helicopter dock displacing 30,000-40,000 tons with a capacity to operate 12 medium lift special ops and two heavy lift helicopters and troops for amphibious operations. Italy Current 2 STOVL carriers: : 14,000-tonne Italian STOVL carrier, commissioned in 1985. : 30000-tonne Italian STOVL carrier designed and built with secondary amphibious assault facilities, commissioned in 2008. Future Italy plans to replace ageing aircraft carrier Giuseppe Garibaldi, as well as one of the landing helicopter docks, with a new amphibious assault ship, to be named . The ship will be significantly larger than her predecessors with a displacement of 38,000 tonnes at full load. Trieste is to carry the F-35B Joint Strike Fighter. Meanwhile, Giuseppe Garibaldi will be transferred to Italian Space Operation Command for use as a satellite launch platform. Japan Current 2 s – , 19,500-tonne (27,000 tonnes full load) STOVL carrier Izumo was launched August 2013 and commissioned March 2015. Izumos sister ship, Kaga, was commissioned in 2017. In December 2018, the Japanese Cabinet gave approval to convert both Izumo-class destroyers into aircraft carriers for F-35B STOVL operations. The conversion of Izumo was underway as of mid-2020. The modification of maritime escort vessels is to "increase operational flexibility" and enhance Pacific air defense, the Japanese defense ministry's position is "We are not creating carrier air wings or carrier air squadrons" similar to the US Navy. The Japanese STOVL F-35s, when delivered, will be operated by the Japan Air Self Defense Force from land bases; according to the 2020 Japanese Defense Ministry white paper the STOVL model was chosen for the JASDF due the lack of appropriately long runways to support air superiority capability across all of Japanese airspace. Japan has requested that the USMC deploy STOVL F-35s and crews aboard the Izumo-class ships "for cooperation and advice on how to operate the fighter on the deck of the modified ships". On 3 October 2021, two USMC F-35Bs performed the first vertical landings and horizontal take-offs from JS Izumo, marking 75 years since fixed-wing aircraft operated from a Japanese carrier. 2 s – 19,000-tonne (full load) anti-submarine warfare carriers with enhanced command-and-control capabilities allowing them to serve as fleet flagships. Russia Current 1 STOBAR carrier: Admiral Flota Sovetskogo Soyuza Kuznetsov: 55,000-tonne STOBAR aircraft carrier. Launched in 1985 as Tbilisi, renamed and operational from 1995. Without catapults she can launch and recover lightly fueled naval fighters for air defense or anti-ship missions but not heavy conventional bombing strikes. Officially designated an aircraft carrying cruiser, she is unique in carrying a heavy cruiser's complement of defensive weapons and large P-700 Granit offensive missiles. The P-700 systems will be removed in the coming refit to enlarge her below decks aviation facilities as well as upgrading her defensive systems. Future The Russian Government has been considering the potential replacement of Admiral Kuznetsov for some time and has considered the Shtorm-class aircraft carrier as a possible option. This carrier will be a hybrid of CATOBAR and STOBAR, given the fact that she utilizes both systems of launching aircraft. The carrier is expected to cost As of 2020, the project had not yet been approved and, given the financial costs, it was unclear whether it would be made a priority over other elements of Russian naval modernization. A class of 2 LHD, Project 23900 is planned and an official keel laying ceremony for the project happened on 20 July 2020. South Korea Current Two 18,860-tonne full deck amphibious assault ships with hospital and well deck and facilities to serve as fleet flagships. Future South Korea has set tentative plans for procuring two light aircraft carriers by 2033, which would help make the ROKN a blue water navy. In December 2020, details of South Korea's planned carrier program (CVX) were finalized. A vessel of about 40,000 tons is envisaged carrying about 20 F-35B fighters as well as future maritime attack helicopters. Service entry had been anticipated in the early 2030s. The program has encountered opposition in the National Assembly. In November 2021, the National Defense Committee of the National Assembly reduced the program's requested budget of 7.2 billion KRW and to just 500 million KRW (about $400K USD), effectively putting the project on hold, at least temporarily. However, on 3 December 2021 the full budget of 7.2 billion won was passed by the National Assembly. Basic design work is to begin in earnest starting 2022. Spain Current : 27,000-tonne, specially designed multipurpose strategic projection ship which can operate as an amphibious assault ship and aircraft carrier. Juan Carlos I has full facilities for both functions including a ski jump for STOVL operations, is equipped with the AV-8B Harrier II attack aircraft. Also, well deck, and vehicle storage area which can be used as additional hangar space, launched in 2008, commissioned 30 September 2010. Thailand Current 1 offshore helicopter support ship: helicopter carrier: 11,400-tonne STOVL carrier based on Spanish design. Commissioned in 1997. The AV-8S Matador/Harrier STOVL fighter wing, mostly inoperable by 1999, was retired from service without replacement in 2006. As of 2010, the ship is used for helicopter operations and for disaster relief. Turkey Current is a 27,079-tonne amphibious assault ship (LHD) of the Turkish Navy that can be configured as a 24,660-tonne V/STOL aircraft carrier. Construction began on 30 April 2016 by Sedef Shipbuilding Inc. at their Istanbul shipyard. TCG Anadolu was commissioned with a ceremony on April 10, 2023. The construction of a sister ship, to be named TCG Trakya, is currently being planned by the Turkish Navy. The Baykar Kızılelma, a newly designed, jet-engined UCAV developed for the Turkish Navy and Turkish Air Force as part of Project MIUS, will operate from TCG Anadolu. Its maiden flight was successfully completed on December 14, 2022. The runway tests of TAI Anka-3, another jet-engined UCAV of Project MIUS (with a flying wing design and stealth technology), began in April 2023. Its maiden flight is scheduled for May 2023. United Kingdom Current Two 65,000-tonne Queen Elizabeth-class STOVL carriers which operate the F-35 Lightning II. was commissioned in December 2017 and in December 2019. Queen Elizabeth undertook her first operational deployment in 2021. Each Queen Elizabeth-class ship is able to operate around 40 aircraft during peacetime operations and is thought to be able to carry up to 72 at maximum capacity. As of the end of April 2020, 18 F-35B aircraft had been delivered to the Royal Navy and the Royal Air Force. "Full operating capability" for the UK's carrier strike capability had been planned for 2023 (2 squadrons or 24 jets operating from one carrier). The longer-term aim remains for the ability to conduct a wide range of air operations and support amphibious operations worldwide from both carriers by 2026. They form the central part of the UK Carrier Strike Group. Future The Queen Elizabeth-class ships are expected to have service lives of 50 years. United States Current 11 CATOBAR carriers, all nuclear-powered: : ten 101,000-tonne, fleet carriers, the first of which was commissioned in 1975. A Nimitz-class carrier is powered by two nuclear reactors providing steam to four steam turbines. , one 100,000-tonne, fleet carrier. The lead of the class came into service in 2017, with another nine planned to replace the aging Nimitz-class ships. Nine amphibious assault ships carrying vehicles, Marine fighters, attack and transport helicopters, and landing craft with STOVL fighters for CAS and CAP: : a class of 45,000-tonne amphibious assault ships, although the first two ships in this class, (Flight 0) do not have a well decks, all subsequent ships (Flight I) will have well decks. Two ships are currently in service out of a planned 11 ships. Ships of this class can have a secondary mission as a light aircraft carrier with 20 AV-8B Harrier II, and in the future the F-35B Lightning II aircraft after unloading their Marine expeditionary unit. : a class of 41,000-tonne amphibious assault ships, members of this class have been used in wartime in their secondary mission as light carriers with 20 to 25 AV-8Bs after unloading their Marine expeditionary unit. Seven ship currently in service of an original eight, with one lost to fire. Future The current US fleet of Nimitz-class carriers will be followed into service (and in some cases replaced) by the . It is expected that the ships will be more automated in an effort to reduce the amount of funding required to maintain and operate the vessels. The main new features are implementation of Electromagnetic Aircraft Launch System (EMALS) (which replaces the old steam catapults) and unmanned aerial vehicles. In terms of future carrier developments, Congress has discussed the possibility of accelerating the phasing-out of one or more Nimitz-class carriers, postponing or canceling the procurement of CVN-81 and CVN-82, or modifying the purchase contract. Following the deactivation of in December 2012, the US fleet comprised 10 fleet carriers, but that number increased back to 11 with the commissioning of Gerald R. Ford in July 2017. The House Armed Services Seapower subcommittee on 24 July 2007, recommended seven or eight new carriers (one every four years). However, the debate has deepened over budgeting for the $12–14.5 billion (plus $12 billion for development and research) for the 100,000-tonne Gerald R. Ford-class carrier (estimated service 2017) compared to the smaller $2 billion 45,000-tonne s, which are able to deploy squadrons of F-35Bs. The first of this class, , is now in active service with another, , and 9 more are planned. In a report to Congress in February 2018, the Navy stated it intends to maintain a "12 CVN force" as part of its 30-year acquisition plan. Aircraft carriers in preservation Current museum carriers A few aircraft carriers have been preserved as museum ships. They are: in Mount Pleasant, South Carolina in New York City in Alameda, California in Corpus Christi, Texas in San Diego, California in Tianjin, China in Nantong, China Former museum carriers was moored as a museum in Mumbai from 2001 to 2012, but was never able to find an industrial partner and was closed that year. She was scrapped in 2014. was acquired for preservation and moored in New Orleans from 1990 to 2002, but due to an embezzlement scandal, funding for the museum never materialized and the ship was scrapped in 2002. Future museum carriers has a preservation campaign to bring her to the West Coast of the United States as the world's first amphibious assault ship museum. See also Airborne aircraft carrier Aviation-capable naval vessels Carrier-based aircraft Lily and Clover Merchant aircraft carrier Mobile offshore base Project Habakkuk Seadrome Submarine aircraft carrier Unsinkable aircraft carrier Related lists List of aircraft carriers List of aircraft carriers in service List of aircraft carriers by configuration List of aircraft carriers of the Second World War List of sunken aircraft carriers List of amphibious warfare ships List of carrier-based aircraft List of Canadian Navy aircraft carriers List of aircraft carriers of the People's Liberation Army Navy (China) List of current French Navy aircraft carriers List of German aircraft carriers List of aircraft carriers of the Indian Navy List of Italian Navy aircraft carriers List of aircraft carriers of the Japanese Navy List of aircraft carriers of Russia and the Soviet Union List of active Spanish aircraft carriers List of aircraft carriers of the Royal Navy List of escort carriers of the Royal Navy List of seaplane carriers of the Royal Navy List of aircraft carriers of the United States Navy List of aircraft carrier classes of the United States Navy List of escort aircraft carriers of the United States Navy References Bibliography Further reading Ader, Clement. Military Aviation, 1909, Edited and translated by Lee Kennett, Air University Press, Maxwell Air Force Base, Alabama, 2003, . Chesneau, Roger. Aircraft Carriers of the World, 1914 to the Present: An Illustrated Encyclopedia. Naval Institute Press, 1984. Francillon, René J, Tonkin Gulf Yacht Club US Carrier Operations off Vietnam, 1988, . Melhorn, Charles M. Two-Block Fox: The Rise of the Aircraft Carrier, 1911–1929. Naval Institute Press, 1974. Nordeen, Lon, Air Warfare in the Missile Age, 1985, . Polmar, Norman. Aircraft Carriers: A History of Carrier Aviation and its Influence on World Events, 1901–2006. (two vols.) Potomac Books, 2006. Wadle, Ryan David. United States navy fleet problems and the development of carrier aviation, 1929–1933. PhD dissertation Texas A&M University, 2005. online. External links - technical training film from the Royal Navy Ship types Articles containing video clips

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https://en.wikipedia.org/wiki/Apicomplexa

Apicomplexa

The Apicomplexa (also called Apicomplexia) are a large phylum of mainly parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. Most are obligate endoparasites of animals, except Nephromyces, a symbiont in marine animals, originally classified as a chytrid fungus, and the Chromerida, some of which are photosynthetic partners of corals. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: Babesiosis (Babesia) Malaria (Plasmodium) Cryptosporidiosis (Cryptosporidium parvum) Cyclosporiasis (Cyclospora cayetanensis) Cystoisosporiasis (Cystoisospora belli) Toxoplasmosis (Toxoplasma gondii) The name Apicomplexa derives from two Latin words—apex (top) and complexus (infolds)—for the set of organelles in the sporozoite. The Apicomplexa comprise the bulk of what used to be called the Sporozoa, a group of parasitic protozoans, in general without flagella, cilia, or pseudopods. Most of the Apicomplexa are motile, however, with a gliding mechanism that uses adhesions and small static myosin motors. The other main lines were the Ascetosporea (a group of Rhizaria), the Myxozoa (highly derived cnidarian animals), and the Microsporidia (derived from fungi). Sometimes, the name Sporozoa is taken as a synonym for the Apicomplexa, or occasionally as a subset. Description The phylum Apicomplexa contains all eukaryotes with a group of structures and organelles collectively termed the apical complex. This complex consists of structural components and secretory organelles required for invasion of host cells during the parasitic stages of the Apicomplexan life cycle. Apicomplexa have complex life cycles, involving several stages and typically undergoing both asexual and sexual replication. All Apicomplexa are obligate parasites for some portion of their life cycle, with some parasitizing two separate hosts for their asexual and sexual stages. Besides the conserved apical complex, Apicomplexa are morphologically diverse. Different organisms within Apicomplexa, as well as different life stages for a given apicomplexan, can vary substantially in size, shape, and subcellular structure. Like other eukaryotes, Apicomplexa have a nucleus, endoplasmic reticulum and Golgi complex. Apicomplexa generally have a single mitochondrion, as well as another endosymbiont-derived organelle called the apicoplast which maintains a separate 35 kilobase circular genome (with the exception of Cryptosporidium species and Gregarina niphandrodes which lack an apicoplast). All members of this phylum have an infectious stage—the sporozoite—which possesses three distinct structures in an apical complex. The apical complex consists of a set of spirally arranged microtubules (the conoid), a secretory body (the rhoptry) and one or more polar rings. Additional slender electron-dense secretory bodies (micronemes) surrounded by one or two polar rings may also be present. This structure gives the phylum its name. A further group of spherical organelles is distributed throughout the cell rather than being localized at the apical complex and are known as the dense granules. These typically have a mean diameter around 0.7 μm. Secretion of the dense-granule content takes place after parasite invasion and localization within the parasitophorous vacuole and persists for several minutes. Flagella are found only in the motile gamete. These are posteriorly directed and vary in number (usually one to three). Basal bodies are present. Although hemosporidians and piroplasmids have normal triplets of microtubules in their basal bodies, coccidians and gregarines have nine singlets. The mitochondria have tubular cristae. Centrioles, chloroplasts, ejectile organelles, and inclusions are absent. The cell is surrounded by a pellicle of three membrane layers (the alveolar structure) penetrated by micropores. Replication: Mitosis is usually closed, with an intranuclear spindle; in some species, it is open at the poles. Cell division is usually by schizogony. Meiosis occurs in the zygote. Mobility: Apicomplexans have a unique gliding capability which enables them to cross through tissues and enter and leave their host cells. This gliding ability is made possible by the use of adhesions and small static myosin motors. Other features common to this phylum are a lack of cilia, sexual reproduction, use of micropores for feeding, and the production of oocysts containing sporozoites as the infective form. Transposons appear to be rare in this phylum, but have been identified in the genera Ascogregarina and Eimeria. Life cycle Most members have a complex lifecycle, involving both asexual and sexual reproduction. Typically, a host is infected via an active invasion by the parasites (similar to entosis), which divide to produce sporozoites that enter its cells. Eventually, the cells burst, releasing merozoites, which infect new cells. This may occur several times, until gamonts are produced, forming gametes that fuse to create new cysts. Many variations occur on this basic pattern, however, and many Apicomplexa have more than one host. The apical complex includes vesicles called rhoptries and micronemes, which open at the anterior of the cell. These secrete enzymes that allow the parasite to enter other cells. The tip is surrounded by a band of microtubules, called the polar ring, and among the Conoidasida is also a funnel of tubulin proteins called the conoid. Over the rest of the cell, except for a diminished mouth called the micropore, the membrane is supported by vesicles called alveoli, forming a semirigid pellicle. The presence of alveoli and other traits place the Apicomplexa among a group called the alveolates. Several related flagellates, such as Perkinsus and Colpodella, have structures similar to the polar ring and were formerly included here, but most appear to be closer relatives of the dinoflagellates. They are probably similar to the common ancestor of the two groups. Another similarity is that many apicomplexan cells contain a single plastid, called the apicoplast, surrounded by either three or four membranes. Its functions are thought to include tasks such as lipid and heme biosynthesis, and it appears to be necessary for survival. In general, plastids are considered to have a common origin with the chloroplasts of dinoflagellates, and evidence points to an origin from red algae rather than green. Subgroups Within this phylum are four groups — coccidians, gregarines, haemosporidians (or haematozoans, including in addition piroplasms), and marosporidians. The coccidians and haematozoans appear to be relatively closely related. Perkinsus , while once considered a member of the Apicomplexa, has been moved to a new phylum — Perkinsozoa. Gregarines The gregarines are generally parasites of annelids, arthropods, and molluscs. They are often found in the guts of their hosts, but may invade the other tissues. In the typical gregarine lifecycle, a trophozoite develops within a host cell into a schizont. This then divides into a number of merozoites by schizogony. The merozoites are released by lysing the host cell, which in turn invade other cells. At some point in the apicomplexan lifecycle, gametocytes are formed. These are released by lysis of the host cells, which group together. Each gametocyte forms multiple gametes. The gametes fuse with another to form oocysts. The oocysts leave the host to be taken up by a new host. Coccidians In general, coccidians are parasites of vertebrates. Like gregarines, they are commonly parasites of the epithelial cells of the gut, but may infect other tissues. The coccidian lifecycle involves merogony, gametogony, and sporogony. While similar to that of the gregarines it differs in zygote formation. Some trophozoites enlarge and become macrogamete, whereas others divide repeatedly to form microgametes (anisogamy). The microgametes are motile and must reach the macrogamete to fertilize it. The fertilized macrogamete forms a zygote that in its turn forms an oocyst that is normally released from the body. Syzygy, when it occurs, involves markedly anisogamous gametes. The lifecycle is typically haploid, with the only diploid stage occurring in the zygote, which is normally short-lived. The main difference between the coccidians and the gregarines is in the gamonts. In the coccidia, these are small, intracellular, and without epimerites or mucrons. In the gregarines, these are large, extracellular, and possess epimerites or mucrons. A second difference between the coccidia and the gregarines also lies in the gamonts. In the coccidians, a single gamont becomes a macrogametocyte, whereas in the gregarines, the gamonts give rise to multiple gametocytes. Haemosporidia The Haemosporidia have more complex lifecycles that alternate between an arthropod and a vertebrate host. The trophozoite parasitises erythrocytes or other tissues in the vertebrate host. Microgametes and macrogametes are always found in the blood. The gametes are taken up by the insect vector during a blood meal. The microgametes migrate within the gut of the insect vector and fuse with the macrogametes. The fertilized macrogamete now becomes an ookinete, which penetrates the body of the vector. The ookinete then transforms into an oocyst and divides initially by meiosis and then by mitosis (haplontic lifecycle) to give rise to the sporozoites. The sporozoites escape from the oocyst and migrate within the body of the vector to the salivary glands where they are injected into the new vertebrate host when the insect vector feeds again. Marosporida The class Marosporida Mathur, Kristmundsson, Gestal, Freeman, and Keeling 2020 is a newly recognized lineage of apicomplexans that is sister to the Coccidia and Hematozoa. It is defined as a phylogenetic clade containing Aggregata octopiana Frenzel 1885, Merocystis kathae Dakin, 1911 (both Aggregatidae, originally coccidians), Rhytidocystis sp. 1 and Rhytidocystis sp. 2 Janouškovec et al. 2019 (Rhytidocystidae Levine, 1979, originally coccidians, Agamococcidiorida), and Margolisiella islandica Kristmundsson et al. 2011 (closely related to Rhytidocystidae). Marosporida infect marine invertebrates. Members of this clade retain plastid genomes and the canonical apicomplexan plastid metabolism. However, marosporidians have the most reduced apicoplast genomes sequenced to date, lack canonical plastidial RNA polymerase and so provide new insights into reductive organelle evolution. Ecology and distribution Many of the apicomplexan parasites are important pathogens of humans and domestic animals. In contrast to bacterial pathogens, these apicomplexan parasites are eukaryotic and share many metabolic pathways with their animal hosts. This makes therapeutic target development extremely difficult – a drug that harms an apicomplexan parasite is also likely to harm its human host. At present, no effective vaccines are available for most diseases caused by these parasites. Biomedical research on these parasites is challenging because it is often difficult, if not impossible, to maintain live parasite cultures in the laboratory and to genetically manipulate these organisms. In recent years, several of the apicomplexan species have been selected for genome sequencing. The availability of genome sequences provides a new opportunity for scientists to learn more about the evolution and biochemical capacity of these parasites. The predominant source of this genomic information is the EuPathDB family of websites, which currently provides specialised services for Plasmodium species (PlasmoDB), coccidians (ToxoDB), piroplasms (PiroplasmaDB), and Cryptosporidium species (CryptoDB). One possible target for drugs is the plastid, and in fact existing drugs such as tetracyclines, which are effective against apicomplexans, seem to operate against the plastid. Many Coccidiomorpha have an intermediate host, as well as a primary host, and the evolution of hosts proceeded in different ways and at different times in these groups. For some coccidiomorphs, the original host has become the intermediate host, whereas in others it has become the definitive host. In the genera Aggregata, Atoxoplasma, Cystoisospora, Schellackia, and Toxoplasma, the original is now definitive, whereas in Akiba, Babesiosoma, Babesia, Haemogregarina, Haemoproteus, Hepatozoon, Karyolysus, Leucocytozoon, Plasmodium, Sarcocystis, and Theileria, the original hosts are now intermediate. Similar strategies to increase the likelihood of transmission have evolved in multiple genera. Polyenergid oocysts and tissue cysts are found in representatives of the orders Protococcidiorida and Eimeriida. Hypnozoites are found in Karyolysus lacerate and most species of Plasmodium; transovarial transmission of parasites occurs in lifecycles of Karyolysus and Babesia. Horizontal gene transfer appears to have occurred early on in this phylum's evolution with the transfer of a histone H4 lysine 20 (H4K20) modifier, KMT5A (Set8), from an animal host to the ancestor of apicomplexans. A second gene—H3K36 methyltransferase (Ashr3 in plants)—may have also been horizontally transferred. Blood-borne genera Within the Apicomplexa are three suborders of parasites: suborder Adeleorina—eight genera suborder Laveraniina (formerly Haemosporina)—all genera in this suborder suborder Eimeriorina—two genera (Lankesterella and Schellackia) Within the Adelorina are species that infect invertebrates and others that infect vertebrates. The Eimeriorina—the largest suborder in this phylum—the lifecycle involves both sexual and asexual stages. The asexual stages reproduce by schizogony. The male gametocyte produces a large number of gametes and the zygote gives rise to an oocyst, which is the infective stage. The majority are monoxenous (infect one host only), but a few are heteroxenous (lifecycle involves two or more hosts). The number of families in this later suborder is debated, with the number of families being between one and 20 depending on the authority and the number of genera being between 19 and 25. Taxonomy History The first Apicomplexa protozoan was seen by Antonie van Leeuwenhoek, who in 1674 saw probably oocysts of Eimeria stiedae in the gall bladder of a rabbit. The first species of the phylum to be described, Gregarina ovata in earwigs intestines, was named by Dufour in 1828. He thought that they were a peculiar group related to the trematodes, at that time included in Vermes. Since then, many more have been identified and named. During 1826–1850, 41 species and six genera of Apicomplexa were named. In 1951–1975, 1873 new species and 83 new genera were added. The older taxon Sporozoa, included in Protozoa, was created by Leuckart in 1879 and adopted by Bütschli in 1880. Through history, it grouped with the current Apicomplexa many unrelated groups. For example, Kudo (1954) included in the Sporozoa species of the Ascetosporea (Rhizaria), Microsporidia (Fungi), Myxozoa (Animalia), and Helicosporidium (Chlorophyta), while Zierdt (1978) included the genus Blastocystis (Stramenopiles). Dermocystidium was also thought to be sporozoan. Not all of these groups had spores, but all were parasitic. However, other parasitic or symbiotic unicellular organisms were included too in protozoan groups outside Sporozoa (Flagellata, Ciliophora and Sarcodina), if they had flagella (e.g., many Kinetoplastida, Retortamonadida, Diplomonadida, Trichomonadida, Hypermastigida), cilia (e.g., Balantidium) or pseudopods (e.g., Entamoeba, Acanthamoeba, Naegleria). If they had cell walls, they also could be included in plant kingdom between bacteria or yeasts. Sporozoa is no longer regarded as biologically valid and its use is discouraged, although some authors still use it as a synonym for the Apicomplexa. More recently, other groups were excluded from Apicomplexa, e.g., Perkinsus and Colpodella (now in Protalveolata). The field of classifying Apicomplexa is in flux and classification has changed throughout the years since it was formally named in 1970. By 1987, a comprehensive survey of the phylum was completed: in all, 4516 species and 339 genera had been named. They consisted of: Class Conoidasida Subclass Gregarinasina p.p. Order Eugregarinorida, with 1624 named species and 231 named genera Subclass Coccidiasina p.p Order Eucoccidiorida p.p Suborder Adeleorina p.p Group Hemogregarines, with 399 species and four genera Suborder Eimeriorina, with 1771 species and 43 genera Class Aconoidasida Order Haemospororida, with 444 species and nine genera Order Piroplasmorida, with 173 species and 20 genera Other minor groups omitted above, with 105 species and 32 genera Although considerable revision of this phylum has been done (the order Haemosporidia now has 17 genera rather than 9), these numbers are probably still approximately correct. Jacques Euzéby (1988) Jacques Euzéby in 1988 created a new class Haemosporidiasina by merging subclass Piroplasmasina and suborder Haemospororina. Subclass Gregarinasina (the gregarines) Subclass Coccidiasina Suborder Adeleorina (the adeleorins) Suborder Eimeriorina (the eimeriorins) Subclass Haemosporidiasina Order Achromatorida Order Chromatorida The division into Achromatorida and Chromatorida, although proposed on morphological grounds, may have a biological basis, as the ability to store haemozoin appears to have evolved only once. Roberts and Janovy (1996) Roberts and Janovy in 1996 divided the phylum into the following subclasses and suborders (omitting classes and orders): Subclass Gregarinasina (the gregarines) Subclass Coccidiasina Suborder Adeleorina (the adeleorins) Suborder Eimeriorina (the eimeriorins) Suborder Haemospororina (the haemospororins) Subclass Piroplasmasina (the piroplasms) These form the following five taxonomic groups: The gregarines are, in general, one-host parasites of invertebrates. The adeleorins are one-host parasites of invertebrates or vertebrates, or two-host parasites that alternately infect haematophagous (blood-feeding) invertebrates and the blood of vertebrates. The eimeriorins are a diverse group that includes one host species of invertebrates, two-host species of invertebrates, one-host species of vertebrates and two-host species of vertebrates. The eimeriorins are frequently called the coccidia. This term is often used to include the adeleorins. Haemospororins, often known as the malaria parasites, are two-host Apicomplexa that parasitize blood-feeding dipteran flies and the blood of various tetrapod vertebrates. Piroplasms where all the species included are two-host parasites infecting ticks and vertebrates. Perkins (2000) Perkins et al. proposed the following scheme. It is outdated as the Perkinsidae have since been recognised as a sister group to the dinoflagellates rather that the Apicomplexia: Class Aconoidasida Conoid present only in the ookinete of some species Order Haemospororida Macrogamete and microgamete develop separately. Syzygy does not occur. Ookinete has a conoid. Sporozoites have three walls. Heteroxenous: alternates between vertebrate host (in which merogony occurs) and invertebrate host (in which sporogony occurs). Usually blood parasites, transmitted by blood-sucking insects. Order Piroplasmorida Class Conoidasida Subclass Gregarinasina Order Archigregarinorida Order Eugregarinorida Suborder Adeleorina Suborder Eimeriorina Order Neogregarinorida Subclass Coccidiasina Order Agamococcidiorida Order Eucoccidiorida Order Ixorheorida Order Protococcidiorida Class Perkinsasida Order Perkinsorida Family Perkinsidae The name Protospiromonadida has been proposed for the common ancestor of the Gregarinomorpha and Coccidiomorpha. Another group of organisms that belong in this taxon are the corallicolids. These are found in coral reef gastric cavities. Their relationship to the others in this phylum has yet to be established. Another genus has been identified - Nephromyces - which appears to be a sister taxon to the Hematozoa. This genus is found in the renal sac of molgulid ascidian tunicates. Evolution Members of this phylum, except for the photosynthetic chromerids, are parasitic and evolved from a free-living ancestor. This lifestyle is presumed to have evolved at the time of the divergence of dinoflagellates and apicomplexans. Further evolution of this phylum has been estimated to have occurred about . The oldest extant clade is thought to be the archigregarines. These phylogenetic relations have rarely been studied at the subclass level. The Haemosporidia are related to the gregarines, and the piroplasms and coccidians are sister groups. The Haemosporidia and the Piroplasma appear to be sister clades, and are more closely related to the coccidians than to the gregarines. Marosporida is a sister group to Coccidiomorphea. Janouškovec et al 2015 presents a somewhat different phylogeny, supporting the work of others showing multiple events of plastids losing photosynthesis. More importantly this work provides the first phylogenetic evidence that there have also been multiple events of plastids becoming genome-free. See also Centrocone References External links SAR supergroup phyla Endoparasites

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https://en.wikipedia.org/wiki/Atari

Atari

Atari () is a brand name that has been owned by several entities since its inception in 1972. It is currently owned by French company Atari SA (formerly Infogrames) through a subsidiary named Atari Interactive. The original Atari, Inc., founded in Sunnyvale, California, USA in 1972 by Nolan Bushnell and Ted Dabney, was a pioneer in arcade games, home video game consoles, and home computers. The company's products, such as Pong and the Atari 2600, helped define the electronic entertainment industry from the 1970s to the mid-1980s. In 1984, as a result of the video game crash of 1983, the home console and computer divisions of the original Atari Inc. were sold off to Jack Tramiel's Tramel Technology Ltd., which then renamed itself to Atari Corporation. Atari, Inc. was renamed Atari Games Inc. Atari Games received the rights to use the logo and brand name with appended text "Games" on arcade games. The rights to Atari, Inc.'s game properties were shared between the two companies, with Atari Corporation receiving the trademarks and the home rights. In 1996, Atari Corporation reverse-merged with disk-drive manufacturer JT Storage (JTS), becoming a division within the company. In 1998, Hasbro Interactive acquired all Atari Corporation–related properties from JTS, creating a new subsidiary, Atari Interactive. Infogrames Entertainment (IESA) bought Hasbro Interactive in 2001 and renamed it Infogrames Interactive, which intermittently published Atari-branded titles. In 2003, it renamed the division Atari Interactive. Another IESA division, Infogrames Inc., changed its name to Atari, Inc. the same year, licensing the Atari name and logo from its fellow subsidiary. In 2008, IESA completed its acquisition of Atari, Inc.'s outstanding stock, making it a wholly owned subsidiary. IESA renamed itself Atari SA in 2009. It sought bankruptcy protection under French law in January 2013. As of 2023, the current Atari's focus is on "video games, consumer hardware, licensing and blockchain". History Logotype The name comes from the Japanese term atari, used while playing the ancient board game Go. The word atari means "to hit a target" in Japanese and is associated with good fortune; in Go, it indicates a situation where a player will be able to capture one or more stones of the opponent in the next move. The Atari logo was designed by George Opperman, who was Atari's first in-house graphic designer and drawn by Evelyn Seto. The design is known as "Fuji" for its resemblance to the Japanese mountain, although the logo's origins are unrelated to it. Opperman designed the logo intending for the silhouette to look like the letter A as in Atari and for its three "prongs" to resemble players and the midline of the "court" in the company's first hit game, Pong. Atari Inc. (1972–1984) In 1971, Nolan Bushnell and Ted Dabney founded a small engineering company, Syzygy Engineering, that designed Computer Space, the world's first commercially available arcade video game, for Nutting Associates. On June 27, 1972, the two incorporated Atari, Inc. and soon hired Al Alcorn as their first design engineer. Bushnell asked Alcorn to produce an arcade version of the Magnavox Odyssey's Tennis game, which would be named Pong. While Bushnell incorporated Atari in June 1972, Syzygy Company was never formally incorporated. Before Atari's incorporation, Bushnell considered various terms from the game Go, eventually choosing atari, referencing a position in the game when a group of stones is imminently in danger of being taken by one's opponent. Atari was incorporated in the state of California on June 27, 1972. In 1973, Atari secretly spawned a competitor called Kee Games, headed by Nolan's next-door neighbor Joe Keenan, to circumvent pinball distributors' insistence on exclusive distribution deals; both Atari and Kee could market nearly the same game to different distributors, each getting an "exclusive" deal. Joe Keenan's management of the subsidiary led to his appointment as president of Atari when Kee was absorbed into the company in 1974. In 1975, Atari's Grass Valley, California subsidiary Cyan Engineering started the development of a flexible console that was capable of playing the four existing Atari games. The result was the Atari Video Computer System, or VCS (later renamed 2600 when the 5200 was released). The introductory price of $199 () included a console, two joysticks, a pair of paddles, and the Combat game cartridge. Bushnell knew he had another potential hit on his hands but bringing the machine to market would be extremely expensive. Looking for outside investors, Bushnell sold Atari to Warner Communications in 1976 for $28 million. Nolan continued to have disagreements with Warner Management over the direction of the company, the discontinuation of the pinball division, and most importantly, the notion of discontinuing the 2600. In 1978, Kee Games was disbanded. In December of that year, Bushnell was fired following an argument with Manny Gerard. "[W]e started fighting like cats and dogs. And then the wheels came off that fall. Warner claimed they fired me", recalled Bushnell. "I say I quit. It was a mutual separation." The development of a successor to the 2600 started as soon as it shipped. The original team estimated the 2600 had a lifespan of about three years; it then set forth to build the most powerful machine possible within that time frame. Mid-way into their effort the home computer revolution took off, leading to the addition of a keyboard and features to produce the Atari 800 and its smaller sibling, the 400. The new machines had some success when they finally became available in quantity in 1980. From this platform Atari released their next-generation game console in 1982, the Atari 5200. It was unsuccessful due to incompatibility with the 2600 game library, a small quantity of dedicated games, and notoriously unreliable controllers. Porting arcade games to home systems with inferior hardware was difficult. The ported version of Pac-Man for Atari 2600 omitted many of the visual features of the original to compensate for the lack of ROM space and the hardware struggled when multiple ghosts appeared on the screen creating a flickering effect. Under Warner and Atari's chairman and CEO, Raymond Kassar, the company achieved its greatest success, selling millions of 2600s and computers. At its peak, Atari accounted for a third of Warner's annual income and was the fastest-growing company in US history at the time. It ran into problems in the early 1980s. Faced with fierce competition and price wars in the game console and home computer markets, Atari was never able to duplicate the success of the 2600. These problems were followed by the video game crash of 1983, with losses that totaled more than $500 million. Warner's stock price slid from $60 to $20, and the company began searching for a buyer for its troubled division. In 1983, Ray Kassar resigned. Financial problems continued to mount and Kassar's successor, James J. Morgan, had less than a year in which to tackle the company's problems. He began a massive restructuring of the company and worked with Warner Communications in May 1984 to create "NATCO" (an acronym for New Atari Company). NATCO further streamlined the company's facilities, personnel, and spending. Unknown to James Morgan and the senior management of Atari, Warner had been in talks with Tramel Technology to buy Atari's consumer electronics and home computer divisions. Negotiating until close to midnight on July 1, 1984, Jack Tramiel purchased the home computing and game console divisions of Atari for $240 million in promissory notes and stocks. Warner gained a 20% stake in Tramel Technologies, which was renamed Atari Corporation. Warner retained the arcade division, continuing it under the name Atari Games, but sold it to Namco in 1985. Warner also sold the Ataritel division to Mitsubishi. Atari Corporation (1984–1996) Under Tramiel's ownership, Atari Corp. used the remaining stock of game console inventory to keep the company afloat while they finished development on a 16/32-bit computer system, the Atari ST. ("ST" stands for "sixteen/thirty-two", referring to the machines' 16-bit bus and 32-bit processor core.) In April 1985, they released an update to the 8-bit computer line, the Atari 65XE, the first in the Atari XE series. June 1985 saw the release of the Atari 130XE; Atari User Groups received early sneak-preview samples of the new Atari 520ST's, and major retailer shipments hit store shelves in September 1985 of Atari's new 32-bit Atari ST computers. In 1986, Atari launched two consoles designed under Warner — the Atari 2600jr and the Atari 7800 console (which saw limited release in 1984). Atari rebounded, earning a $25 million profit that year. In 1987, Atari acquired the Federated Group for $67.3 million, securing shelf space in over 60 stores in California, Arizona, Texas and Kansas at a time when major American electronics outlets were reluctant to carry Atari-branded computers, and two-thirds of Atari's PC production was sold in Europe. The Federated Group (not related to Federated Department Stores) was sold to Silo in 1989. In 1988, the company unveiled the 1040STF and the Mega ST with a bit image manipulator chip, and launched its first parallel computer. The ATW-800 Transputer was based on the Inmos T800 CPU, which had a 32/64-bit architecture, ran at 15 million instructions per second (MIPS) and housed a Charity videochip that supported 16 million colors. The company continued to experiment with parallel computing aiming at B2B customers and graphic designers, but the transputer line failed to achieve commercial success. In 1989, Atari released the Atari Lynx, a handheld console with color graphics, to much fanfare. A shortage of parts kept the system from being released nationwide for the 1989 Christmas season, and the Lynx lost market share to Nintendo's Game Boy, which, despite only having a black and white display, was cheaper, had better battery life and had much higher availability. Tramiel emphasized computers over game consoles but Atari's proprietary computer architecture and operating system fell victim to the success of the Wintel platform while the game market revived. In 1989, Atari Corp. sued Nintendo for $250 million, alleging it had an illegal monopoly. Atari eventually lost the case when it was rejected by a US district court in 1992. In 1991, Atari released its PCs ABC386SXII and ABC386DXII based on Intel's i386 chip. In 1993, Atari positioned its Jaguar as the only 64-bit interactive media entertainment system available, but it sold poorly. It would be the last home console to be produced by Atari and the last to be produced by an American manufacturer until Microsoft's introduction of the Xbox in 2001. By 1996, a series of successful lawsuits had left Atari with millions of dollars in the bank, but the failure of the Lynx and Jaguar left Atari without a product to sell. Tramiel and his family also wanted out of the business. The result was a rapid succession of changes in ownership. In July 1996, Atari merged with JTS Inc., a short-lived maker of hard disk drives, to form JTS Corp. Atari's role in the new company largely became that of holder for the Atari properties and minor support, and consequently the name largely disappeared from the market. Atari Games (1984–1999) After the sale of the consumer electronics and computer divisions to Jack Tramiel, Atari was renamed Atari Games Corporation. Atari Games retained most of the same employees and managers from the coin-operated games division and continued many of the divisions projects from before the transition. In 1985, a controlling interest in the coin-operated games division was sold to Namco, which also took the Atari Games name. Warner renamed Atari Games to Atari Holdings, which continued as a non-operating subsidiary until 1992. Meanwhile, Namco later lost interest in operating Atari Games. In 1987, Namco sold 33% of its shares to a group of employees led by then-president Hideyuki Nakajima. He had been the president of Atari Games since 1985. Atari Ireland was a subsidiary of Atari Games that manufactured their games for the European market; while under Namco, Atari Ireland also manufactured Sega's Hang-On (1985) for the European market. Atari Games continued to manufacture arcade games and units, and starting in 1988, also sold cartridges for the Nintendo Entertainment System under the Tengen brand name, including a version of Tetris. The companies exchanged a number of lawsuits in the late 1980s related to disputes over the rights to Tetris and Tengen's circumvention of Nintendo's lockout chip, which prevented third parties from creating unauthorized games. The suit finally reached a settlement in 1994, with Atari Games paying Nintendo cash damages and use of several patent licenses. In April 1996, after an unsuccessful bid by Atari co-founder Nolan Bushnell, the company was sold to WMS Industries, owners of the Williams, Bally and Midway arcade brands, which restored the use of the Atari Games name. On November 19, 1999, Atari Games Corporation was renamed Midway Games West Inc., resulting in the Atari Games name no longer being used. Hasbro Interactive (1998–2000) On March 13, 1998, JTS sold the Atari name and assets to Hasbro Interactive for $5 million, less than a fifth of what Warner Communications had paid 22 years earlier. This transaction primarily involved the brand and intellectual property, which now fell under the Atari Interactive division of Hasbro Interactive. The brand name changed hands again in December 2000 when French software publisher Infogrames took over Hasbro Interactive. Atari SA (2001–present) In October 2001, Infogrames Entertainment SA (IESA, now Atari SA) announced that it was "reinventing" the Atari brand with the launch of three new games featuring a prominent Atari branding on their boxarts: Splashdown, MX Rider and TransWorld Surf. Infogrames used Atari as a brand name for games aimed at 18–34 year olds. Other Infogrames games under the Atari name included V-Rally 3, Neverwinter Nights, Stuntman and Enter the Matrix. On May 8, 2003, IESA had its majority-owned, but discrete US subsidiary Infogrames, Inc. officially renamed Atari, Inc., renamed its European operations to Atari Europe but kept the original name of the main company Infogrames Entertainment. The original Atari holdings division purchased from Hasbro, Hasbro Interactive, was also made a separate corporate entity renamed as Atari Interactive. Between 2004 and 2011, Atari produced and marketed Atari Flashback retro consoles, reminiscent of the Atari 2600 design. Since 2011, these consoles have been produced by AtGames under the license from Atari. Atari Flashback Portable is a handheld game console sold since 2016. In April 2011, Atari re-released their back catalogue of arcade and Atari 2600 games to be played on mobile devices. On March 6, 2008, IESA made an offer to Atari, Inc. to buy out all remaining public shares for a value of $1.68 per share, or $11 million total. The offer would make IESA sole owner of Atari, Inc., thus making it a privately held company. On April 30, 2008, Atari, Inc. announced its intentions to accept Infogrames' buyout offer and to merge with Infogrames. On October 8, 2008, IESA completed its acquisition of Atari, Inc., making it a wholly owned subsidiary. On December 9, 2008, Atari announced that it had acquired Cryptic Studios, a MMORPG developer. Namco Bandai purchased a 34% stake in Atari Europe on May 14, 2009, paving the way for its acquisition from IESA. Atari had significant financial issues for several years prior, with losses in the tens of millions since 2005. In May 2009, Infogrames Entertainment SA, the parent company of Atari, and Atari Interactive, announced it would change its name to Atari SA. In April 2010, Atari SA board member and former CEO David Gardner resigned. Original Atari co-founder Nolan Bushnell joined the board as a representative for Blubay holdings. As of March 31, 2011, the board of directors consisted of Frank Dangeard, Jim Wilson, Tom Virden, Gene Davis and Alexandra Fichelson. On January 21, 2013, the four related companies Atari, Atari Interactive, Humongous, and California US Holdings filed for Chapter 11 bankruptcy in the United States Bankruptcy Court for the Southern District of New York. All three Ataris emerged from bankruptcy one year later and the entering of the social casino gaming industry with Atari Casino. Frederic Chesnais, who now heads all three companies, stated that their entire operations consist of a staff of 10 people. On June 22, 2014, Atari announced a new corporate strategy that would include a focus on "new audiences", specifically "LGBT, social casinos, real-money gambling, and YouTube". On June 8, 2017, a short teaser video was released, promoting a new product; and the following week Chesnais confirmed the company was developing a new game console – the hardware was stated to be based on PC technology, and still under development. In mid July 2017 an Atari press release confirmed the existence of the aforementioned new hardware, referred to as the "Ataribox". The box design was derived from early Atari designs (e.g. 2600) with a ribbed top surface, and a rise at the back of the console; two versions were announced: one with a traditional wood veneer front, and the other with a glass front. Connectivity options were revealed, including HDMI, USB (x4), and SD card – the console was said to support both classic and current games. Also, according to an official company statement of June 22, 2017, the product was to be initially launched via a crowdfunding campaign in order to minimize any financial risk to the parent company. On September 26, 2017, Atari sent out a press release about the new "Atari VCS", which confirmed more details about the console. It will run a Linux operating system, with full access to the underlying OS, but it will have a custom interface designed for the TV. On January 27, 2020, Atari announced a deal with GSD Group to build Atari Hotels, with the first breaking ground in Phoenix in mid-2020. Additional hotels were also planned in Las Vegas, Denver, Chicago, Austin, Seattle, San Francisco, and San Jose. The company plans to make the hotel experience immersive and accessible to all ages. Hotels are planned to include virtual and augmented reality technologies. On December 16, 2020, Atari shipped the first units of the Atari VCS exclusive to backers of the systems crowdfunding campaign. Atari urged the backers to give feedback on the system so that the company could make changes to improve the product on its official launch. In 2020, Atari launched its decentralized cryptocurrency Atari Token in equal partnership with the ICICB Group. Atari Group announced in March 2020 that it granted ICICB a non-exclusive license to run a cryptocurrency online casino on Atari's website, based on the Atari Token. The group partnering with Atari opened a new company in Gibraltar called Atari Chain LTD. In March 2021, Atari extended its partnership with ICICB Group for the development of Atari branded hotels, and the first hotels will be constructed at selected locations outside the United States, with Dubai, Gibraltar and Spain. On 18 April 2022, Atari announced the termination of all license agreements with ICICB Group and its subsidiaries ("ICICB"). The license agreements between Atari and ICICB, including the Atari Chain Limited license (the "Joint Venture") and the related licenses including hotel and casino licenses, have been terminated effective 18 April 2022. ICICB is not authorized to represent Atari or its brands in any manner. See also Golden age of arcade video games History of video games References External links Atari official site Former Atari brand's official global site The Atari History Museum – Atari historical archive site The biggest Atari Archive – Atari softwares archive site Atari Times , supporting all Atari consoles Atari On Film – List of Atari products in films The Dot Eaters: classic video game history – Comprehensive history of video games, extensive info on Atari offerings and history MTV Video Music Award winners 1972 establishments in California American brands French brands Video game publishing brands