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also means "of or relating to Afghanistan or its people, language or culture". According to the 1964 Constitution of Afghanistan, all Afghans citizens are equal in rights and obligations before the law. The fourth article of the current Constitution of Afghanistan states that citizens of Afghanistan consist of Pashtun, Tajik, Hazara, Uzbek, Turkmen, Baloch, Pashayi, Nuristani, Aimaq, Arab, Kyrgyz, Qizilbash, Gurjar, Brahui, and members of other ethnicities. There are political disputes regarding this: there are members of the non-Pashtun ethnicities of Afghanistan that reject the term Afghan being applied to them, and there are Pashtuns in Pakistan that wish to have the term Afghan applied to them. Afghani, Afghanistani and Afghanese The term Afghani refers to the unit of Afghan currency. The term is also often used in the English language (and appears in some dictionaries) for a person or thing related to Afghanistan, although some have expressed the opinion that this usage is incorrect. A reason for the confusion can be because the apparent incorrect term "Afghani" (افغانی) is in fact a valid

Kyrgyz, Qizilbash, Gurjar, Brahui, and members of other ethnicities. There are political disputes regarding this: there are members of the non-Pashtun ethnicities of Afghanistan that reject the term Afghan being applied to them, and there are Pashtuns in Pakistan that wish to have the term Afghan applied to them. Afghani, Afghanistani and Afghanese The term Afghani refers to the unit of Afghan currency. The term is also often used in the English language (and appears in some dictionaries) for a person or thing related to Afghanistan, although some have expressed the opinion that this usage is incorrect. A reason for the confusion can be because the apparent incorrect term "Afghani" (افغانی) is in fact a valid demonym for Afghans in the overall Persian language and in Hindustani, whereas "Afghan" is derived from Pashto. Thus "Afghan" is the anglicized term of "Afghani" when translating from Dari or Hindi-Urdu, but not Pashto. Less commonly the term Afghanistani has been used which, while consistent with for example Pakistani, is incorrect in practise due to the nature and

non-denominational, had placed itself under the control and direction of the Church of Scotland. It was the failure of Dalhousie to appoint a prominent Baptist pastor and scholar, Edmund Crawley, to the Chair of Classics, as had been expected, that really thrust into the forefront of Baptist thinking the need for a college established and run by the Baptists. In 1838, the Nova Scotia Baptist Education Society founded Queen's College (named for Queen Victoria). The college began with 21 students in January 1839. The name "Queen's College" was denied to the Baptist school, so it was renamed "Acadia College" in 1841, in reference to the history of the area as an Acadian settlement. Acadia College awarded its first degrees in 1843 and became Acadia University in 1891, established by the Acadia University Act. The Granville Street Baptist Church (now First Baptist Church (Halifax)) was an instrumental and determining factor in the founding of the university. It has played a supporting role throughout its history, and shares much of the credit for its survival and development. Many individuals who have made significant contributions to Acadia University, including the first president John Pryor, were members of the First Baptist Church Halifax congregation. Similarly, the adjacent Wolfville United Baptist Church plays a significant role in the life of the university. The original charter of the college stated: This was unique at the time, and a direct result of Baptists being denied entry into other schools that required religious tests of their students and staff. In 1851, the power of appointing governors was transferred from the Nova Scotia Baptist Education Society to the Baptist Convention of the Maritime Provinces. Charles Osborne Wickenden (architect) and J.C. Dumaresq designed the Central Building, Acadia College, 1878–79. Clara Belle Marshall, from Mount Hanley, Nova Scotia, became the first woman to graduate from Acadia University in 1879. In 1891, there were changes in the Act of Incorporation. Andrew R. Cobb designed several campus buildings including: Raynor Hall Residence, 1916; Horton House, designed by Cobb in the Georgian style, and built by James Reid of Yarmouth, Nova Scotia was opened in 1915 as Horton Academy. Today, Horton Hall is the home of the Department of Psychology and Research and Graduate Studies. Emmerson Hall, built in 1913, is particularly interesting for the variety of building stones used. In 1967 Emmerson Hall was converted to classrooms and offices for the School of Education. It is a registered Heritage Property. Unveiled on 16 August 1963, a wooden and metal organ in Manning Chapel, Acadia University, is dedicated to Acadia University's war dead of the First and Second World Wars and the Korean War. A book of remembrance in Manning Chapel, Acadia University was unveiled on 1 March 1998 through the efforts of the Wolfville Historical Society In 1966, the Baptist denomination relinquished direct control over the university. The denomination maintains nine seats on the university's Board of Governors. Acadia is a laureate of Washington's Smithsonian Institution and a part of the permanent research collection of the National Museum of American History. Acadia is also the only Canadian University selected for inclusion in the Education and Academia category if the Computerworld Smithsonian Award. Faculty strikes Acadia University's Board of Governors and members of the Acadia University Faculty Association (AUFA) have ratified a new collective agreement covering the period 1 July 2010 to 30 June 2014. The faculty of Acadia University have been on strike three times in the history of the institution. The first was 24 February to 12 March 2004. The second was 15 October to 5 November 2007. The second strike was resolved after the province's labour minister, Mark Parent, appointed a mediator, on 1 November, to facilitate an agreement. The third strike began on 1 February 2022 and is ongoing. Academics Rankings In Maclean's 2022 Guide to Canadian Universities, Acadia was ranked fifth in the publication's "primarily undergraduate" Canadian university category. In the same year, the publication ranked Acadia 30th, in its reputation rankings. Faculties Acadia is organized into four faculties: Arts, Pure & Applied Science, Professional Studies and Theology. Each faculty is further divided into departments and schools specialized in areas of teaching and research. Research Acadia has over 15 research centres and 6 research chairs. Undergraduate students have the opportunity to participate in many research opportunities in a small university setting. The Division of Research & Graduate Studies is separate from the faculties and oversees graduate students as well as Acadia's research programs. Acadia's research programs explore coastal environments, ethno-cultural diversity, social justice, environmental monitoring and climate change, organizational relationships, data mining, the impact of digital technologies, and lifestyle choices contributing to health and wellness. Acadia's research centres include the Tidal Energy Institute, the Acadia Institute for Data Analytics, and the Beaubassin Field Station. Applied research opportunities include research with local wineries and grape growers, alternative insect control techniques and technologies. Innovation The Acadia Advantage In 1996, Acadia University pioneered the use of mobile computing technology in a post-secondary educational environment. This academic initiative, named the Acadia Advantage, integrated the use of notebook computers into the undergraduate curriculum and featured innovations in teaching. By 2000, all full-time, undergraduate Acadia students were taking part in the initiative. The initiative went beyond leasing notebook computers to students during the academic year, and included training, user support and the use of course-specific applications at Acadia that arguably revolutionized learning at the Wolfville, N.S. campus and beyond. Because of its pioneering efforts, Acadia is a laureate of Washington's Smithsonian Institution and a part of the permanent research collection of the National Museum of American History. It is the only Canadian university selected for inclusion in the Education and Academia category of the Computerworld Smithsonian Award. In addition, Acadia University received the Pioneer Award for Ubiquitous Computing. In 2001, it achieved high rankings in the annual Maclean's University Rankings, including Best Overall for Primarily Undergraduate University in their opinion survey, and it received the Canadian Information Productivity Award in 1997 as the first university in Canada to fully utilize information technology in the undergraduate curriculum. In October 2006, Dr. Dinter-Gottlieb established a commission to review the Acadia Advantage learning environment 10 years after inception. The mandate of the commission was to determine how well the current Advantage program meets the needs of students, faculty, and staff and to examine how the role of technology in

Second World Wars and the Korean War. A book of remembrance in Manning Chapel, Acadia University was unveiled on 1 March 1998 through the efforts of the Wolfville Historical Society In 1966, the Baptist denomination relinquished direct control over the university. The denomination maintains nine seats on the university's Board of Governors. Acadia is a laureate of Washington's Smithsonian Institution and a part of the permanent research collection of the National Museum of American History. Acadia is also the only Canadian University selected for inclusion in the Education and Academia category if the Computerworld Smithsonian Award. Faculty strikes Acadia University's Board of Governors and members of the Acadia University Faculty Association (AUFA) have ratified a new collective agreement covering the period 1 July 2010 to 30 June 2014. The faculty of Acadia University have been on strike three times in the history of the institution. The first was 24 February to 12 March 2004. The second was 15 October to 5 November 2007. The second strike was resolved after the province's labour minister, Mark Parent, appointed a mediator, on 1 November, to facilitate an agreement. The third strike began on 1 February 2022 and is ongoing. Academics Rankings In Maclean's 2022 Guide to Canadian Universities, Acadia was ranked fifth in the publication's "primarily undergraduate" Canadian university category. In the same year, the publication ranked Acadia 30th, in its reputation rankings. Faculties Acadia is organized into four faculties: Arts, Pure & Applied Science, Professional Studies and Theology. Each faculty is further divided into departments and schools specialized in areas of teaching and research. Research Acadia has over 15 research centres and 6 research chairs. Undergraduate students have the opportunity to participate in many research opportunities in a small university setting. The Division of Research & Graduate Studies is separate from the faculties and oversees graduate students as well as Acadia's research programs. Acadia's research programs explore coastal environments, ethno-cultural diversity, social justice, environmental monitoring and climate change, organizational relationships, data mining, the impact of digital technologies, and lifestyle choices contributing to health and wellness. Acadia's research centres include the Tidal Energy Institute, the Acadia Institute for Data Analytics, and the Beaubassin Field Station. Applied research opportunities include research with local wineries and grape growers, alternative insect control techniques and technologies. Innovation The Acadia Advantage In 1996, Acadia University pioneered the use of mobile computing technology in a post-secondary educational environment. This academic initiative, named the Acadia Advantage, integrated the use of notebook computers into the undergraduate curriculum and featured innovations in teaching. By 2000, all full-time, undergraduate Acadia students were taking part in the initiative. The initiative went beyond leasing notebook computers to students during the academic year, and included training, user support and the use of course-specific applications at Acadia that arguably revolutionized learning at the Wolfville, N.S. campus and beyond. Because of its pioneering efforts, Acadia is a laureate of Washington's Smithsonian Institution and a part of the permanent research collection of the National Museum of American History. It is the only Canadian university selected for inclusion in the Education and Academia category of the Computerworld Smithsonian Award. In addition, Acadia University received the Pioneer Award for Ubiquitous Computing. In 2001, it achieved high rankings in the annual Maclean's University Rankings, including Best Overall for Primarily Undergraduate University in their opinion survey, and it received the Canadian Information Productivity Award in 1997 as the first university in Canada to fully utilize information technology in the undergraduate curriculum. In October 2006, Dr. Dinter-Gottlieb established a commission to review the Acadia Advantage learning environment 10 years after inception. The mandate of the commission was to determine how well the current Advantage program meets the needs of students, faculty, and staff and to examine how the role of technology in the postsecondary environment has changed at Acadia, and elsewhere. The commission was asked to recommend changes and enhancements to the Acadia Advantage that would benefit the entire university community and ensure its sustainability. Some of the recommendations coming from the Acadia Advantage Renewal Report included developing a choice of model specifications and moving from Acadia-issued, student-leased notebook computers to a student-owned computer model. The university was also advised to unbundle its tuition structure so that the cost of an Acadia education is more detailed and students can understand how their investment in the future of the school is allotted. In September 2008, Acadia moved to a student-owned notebook computer version of the Acadia Advantage, now named Acadia Advantage 2.0. In 2017, Acadia announced the Huestis Innovation Pavilion as part of its $22.25 million Science Complex renewal project. Named in honour of lead donors, Faye and David Huestis of Saint John, New Brunswick, the Pavilion is a connection between Elliott and Huggins Halls, providing research and commercialization space. The new Agri-Technology Access Centre in the Innovation Pavilion provides companies and industry organizations with access to specialized technology, lab space, subject-matter expertise and commercialization support services. It also enables Acadia to advance its applied research strength in a priority sector – agriculture – and expand its technology transfer and commercialization activities. The Science Complex renewal project was supported by an investment of $15.98 million by the Federal and Provincial governments. Athletics Acadia's sports teams are called the Axemen and Axewomen. They participate in the Atlantic University Sports conference of U Sports. School spirit abounds with men's and women's varsity teams that have delivered more conference and national championships than any other institution in Atlantic University Sport. Routinely, more than one-third of Acadia's varsity athletes also achieve Academic All-Canadian designation through Canadian Interuniversity Sport by maintaining a minimum average of 80 per cent. Expansion and modernization of Raymond Field was completed in the fall of 2007 and features the installation of an eight-lane all-weather running track and a move to the same premium artificial turf used by the New England Patriots of the National Football League for its main playing field. The Raymond Field modernization was a gift to the university by friends, alumni, and the province. War Memorial Gymnasium also saw the installation of a new playing floor to benefit its basketball and volleyball teams. In September 2006, Acadia University announced its partnership with the Wolfville Tritons Swim Club and the Acadia Masters Swim Club to form the Acadia Swim Club and return competitive swimming to the university after a 14-year hiatus. On 26 September 2008, the university announced its intention to return swimming to a varsity status in September 2009. Fight song Notable among a number of songs commonly played and sung at various events such as commencement, convocation, and athletic games are: Stand Up and Cheer, the Acadia University fight song. According to 'Songs of Acadia College' (Wolfville, NS 1902–3, 1907), the songs include: 'Acadia Centennial Song' (1938); 'The Acadia Clan Song'; 'Alma Mater - Acadia;' 'Alma Mater Acadia' (1938) and 'Alma Mater Song.' Symbols In 1974, Acadia was granted a coat of arms designed by the College of Arms in London, England. The coat of arms is two-tone, with the school's official colours, garnet and blue, on the shield. The axes represent the school's origins in a rural setting, and the determination of its founders who cleared the land and built the school on donated items and labour. The open books represent the intellectual pursuits of a university, and the wolves heads are a whimsical representation of the university's location in Wolfville. "In pulvere vinces" (In dust you conquer) is the motto. The university seal depicts the Greek goddess of wisdom Athena in front of the first college hall. The university also uses a stylized "A" as a logo for its sports teams. Notable among a number of fight songs commonly played and sung at various events such as commencement, convocation, and athletic games are: the Acadia University alma mater set to the tune of "Annie Lisle". The lyrics are: Far above the dykes of Fundy And its basin blue Stands our noble alma mater Glorious to view Lift the chorus Speed it onward Sing it loud and free Hail to thee our alma mater Acadia, hail to thee Far above the busy highway And the sleepy town Raised against the arch of heaven Looks she proudly down Historic buildings at Acadia University Seminary House, also known as the Ladies' Seminary, is a Second Empire style-building constructed in 1878 as a home for women attending the university. It was designated a National Historic Site of Canada

instruments are commonly referred to as flattop guitars. All are commonly used in popular music genres, including rock, blues, country, and folk. Other styles of guitar which enjoy moderate popularity, generally in more specific genres, include: The archtop, which incorporates an arched, violin-like top either carved out of solid wood or heat-pressed using laminations. It usually has violin style f-holes rather than a single round sound hole. It is most commonly used by swing and jazz players and often incorporates an electric pickup. The Selmer-Maccaferri guitar is usually played by those who follow the style of Django Reinhardt. It is an unusual-looking instrument, distinguished by a fairly large body with squarish bouts, and either a D-shaped or longitudinal oval soundhole. The strings are gathered at the tail like an archtop guitar, but the top is flatter. It also has a wide fingerboard and slotted head like a nylon-string guitar. The loud volume and penetrating tone make it suitable for single-note soloing, and it is frequently employed as a lead instrument in gypsy swing. The resonator guitar, also called the Dobro after its most prominent manufacturer, amplifies its sound through one or more metal cone-shaped resonators. It was designed to overcome the problem of conventional acoustic guitars being overwhelmed by horns and percussion instruments in dance orchestras. It became prized for its distinctive sound, however, and gained a place in several musical styles (most notably blues and bluegrass), and retains a niche well after the proliferation of electric amplification. The 12-string guitar replaces each string with a course of two strings. The lower pairs are tuned an octave apart. Its unique sound was made famous by artists such as Lead Belly, Pete Seeger and Leo Kottke. Tonewoods Traditionally, steel-string guitars have been made of a combination of various tonewoods, or woods considered to have pleasing resonant qualities when used in instrument-making. Note that the term is ill-defined - the wood species that are considered tonewoods have evolved throughout history. Foremost for making steel-string guitar tops are Sitka spruce, the most common, and Alpine and Adirondack spruce. The back and sides of a particular guitar are typically made of the same wood; Brazilian rosewood, East Indian rosewood, and Honduras mahogany are traditional choices, however, maple has been prized for the figuring that can be seen when it is cut in a certain way (such as flame and quilt patterns). A common non-traditional wood gaining popularity is sapele, which is tonally similar to mahogany but slightly lighter in color and possessing a deep grain structure that is visually appealing. Due to decreasing availability and rising prices of premium-quality traditional tonewoods, many manufacturers have begun experimenting with alternative species of woods or more commonly available variations on the standard species. For example, some makers have begun producing models with red cedar or mahogany tops, or with spruce variants other than Sitka. Cedar is also common in the back and sides, as is basswood. Entry-level models, especially those made in East Asia, often use nato wood, which is again tonally similar to mahogany but is cheap to acquire. Some have also begun using non-wood materials, such as plastic or graphite. Carbon-fiber and phenolic composite materials have become desirable for building necks, and some high-end luthiers produce all-carbon-fiber guitars. Assembly The steel-string acoustic guitar evolved from the gut-string Romantic guitar, and because steel strings have higher tension, heavier construction is required overall. One innovation is a metal bar called a truss rod, which is incorporated into the neck to strengthen it and provide adjustable counter-tension to the stress of the strings. Typically, a steel-string acoustic guitar is built with a larger soundbox than a standard classical guitar. A critical structural and tonal component of an acoustic guitar is the bracing, a systems of struts glued to the inside

00-xxx series and Taylor's x12 series are common examples. The grand auditorium guitar, sometimes called the 000 or the triple-O is very similar in design to the grand concert, but slightly wider and deeper. Many 000-style guitars also have a convex back to increase the physical volume of the soundbox without making it deeper at the edges, which would affect comfort and playability. The result is a very balanced tone, comparable to the 00 but with greater volume and dynamic range and slightly more low-end response, making this Classically shaped body style very popular. Eric Clapton's signature Martin, for example, is of this style. Martin's 000-xxx series and Taylor's x14 series are well-known examples of the grand auditorium style. The dreadnought is a large-bodied guitar which incorporates a deeper soundbox, but a smaller and less-pronounced upper bout than most styles. Its size and power gave rise to its name, from the most formidable class of warship at the time of its creation in the early 20th century. The style was designed by Martin Guitars to produce a deeper sound than "classic"-style guitars, with very resonant bass. Its body's combination of compact profile with a deep sound has since been copied by virtually every major steel-string luthier, making it the most popular body type. Martin's "D" series guitars, such as the highly prized D-28, are classic examples of the dreadnought. The jumbo body type is bigger again than a grand auditorium but similarly proportioned, and is generally designed to provide a deep tone similar to a dreadnought's. It was designed by Gibson to compete with the dreadnought, but with maximum resonant space for greater volume and sustain. These come at the expense of being oversized, with a very deep sounding box, and thus somewhat more difficult to play. The foremost example of the style is the Gibson J-200, but like the dreadnought, most guitar manufacturers have at least one jumbo model. Any of these body type can incorporate a cutaway, where a section of the upper bout below the neck is scalloped out. This allows for easier access to the frets located atop the soundbox, at the expense of reduced soundbox volume and altered bracing, which can affect the resonant qualities and resulting tone of the instrument. All of these relatively traditional looking and constructed instruments are commonly referred to as flattop guitars. All are commonly used in popular music genres, including rock, blues, country, and folk. Other styles of guitar which enjoy moderate popularity, generally in more specific genres, include: The archtop, which incorporates an arched, violin-like top either carved out of solid wood or heat-pressed using laminations. It usually has violin style f-holes rather than a single round sound hole. It is most commonly used by swing and jazz players and often incorporates an electric pickup. The Selmer-Maccaferri guitar is usually played by those who follow the style of Django Reinhardt. It is an unusual-looking instrument, distinguished by a fairly large body with squarish bouts, and either a D-shaped or longitudinal oval soundhole. The strings are gathered at the tail like an archtop guitar, but the top is flatter. It also has a wide fingerboard and slotted head like a nylon-string guitar. The loud volume and penetrating tone make it suitable for single-note soloing, and it is frequently employed as a lead instrument in gypsy swing. The resonator guitar, also called the Dobro after its most prominent manufacturer, amplifies its sound through one or more metal cone-shaped resonators. It was designed to overcome the problem of conventional acoustic guitars being overwhelmed by horns and percussion instruments in dance orchestras. It became prized for its distinctive sound, however, and gained a place in several musical styles (most notably blues and bluegrass), and retains a niche well after the proliferation of electric amplification. The 12-string guitar replaces each string with a course of two strings. The lower pairs are tuned an octave apart. Its unique sound was made famous by artists such as Lead Belly, Pete Seeger and Leo Kottke. Tonewoods Traditionally, steel-string guitars have been made of a combination of various tonewoods, or woods considered to have pleasing resonant qualities when used in instrument-making. Note that the term is ill-defined - the wood species that are considered tonewoods have evolved throughout history. Foremost for making steel-string guitar tops are Sitka spruce, the most common, and Alpine and Adirondack spruce. The back and sides of a particular guitar are typically made of the same wood; Brazilian rosewood, East Indian rosewood, and Honduras mahogany are traditional choices, however, maple has been prized for the figuring that can be seen when it is cut in a certain way (such as flame and quilt patterns). A common non-traditional wood gaining popularity is sapele, which is tonally similar to mahogany but slightly lighter in color and possessing a deep grain structure that is visually appealing. Due to decreasing availability and rising prices of premium-quality traditional tonewoods, many manufacturers have begun experimenting with alternative species of woods or more commonly available variations on the standard species. For example, some makers have begun producing models with red cedar or mahogany tops, or with spruce variants other than Sitka. Cedar is also common in the back and sides, as is basswood. Entry-level models, especially those made in East Asia, often use nato wood, which is again tonally similar to mahogany but is cheap to acquire. Some have also begun using non-wood materials, such as plastic or graphite. Carbon-fiber and phenolic composite materials have become desirable for building necks, and some high-end luthiers produce all-carbon-fiber guitars. Assembly The steel-string acoustic guitar evolved from the gut-string Romantic guitar, and because steel strings have higher tension, heavier construction is required overall. One innovation is a metal bar called a truss rod, which is incorporated into the neck to strengthen it and provide adjustable counter-tension to the stress of the strings. Typically, a steel-string acoustic guitar is built with a larger soundbox than a standard classical guitar. A critical structural and

relationship with the Church and was made Cardinal Bishop of Frascati by Pope Martin V. Early life Baldassarre Cossa was born on the island of Procida in the Kingdom of Naples to the family of Giovanni Cossa, lord of Procida. Initially he followed a military career, taking part in the Angevin-Neapolitan war. His two brothers were sentenced to death for piracy by Ladislaus of Naples. He studied law at the University of Bologna and obtained doctorates in both civil and canon law. Probably at the prompting of his family, in 1392 he entered the service of Pope Boniface IX, first working in Bologna and then in Rome. (The Western Schism had begun in 1378, and there were two competing popes at the time, one in Avignon supported by France and Spain, and one in Rome, supported by most of Italy, Germany and England.) In 1386 he is listed as canon of the cathedral of Bologna. In 1396, he became archdeacon in Bologna. He became Cardinal deacon of Saint Eustachius in 1402 and Papal legate in Romagna in 1403. Johann Peter Kirsch describes Cossa as "utterly worldly-minded, ambitious, crafty, unscrupulous, and immoral, a good soldier but no churchman". At this time Cossa also had some links with local robber bands, which were often used to intimidate his rivals and attack carriages. These connections added to his influence and power in the region. Role in the Western Schism Council of Pisa Cardinal Cossa was one of the seven cardinals who, in May 1408, withdrew their allegiance from Pope Gregory XII, stating that he had broken his solemn oath not to create new cardinals without consulting them in advance. In company with those cardinals who had been following Antipope Benedict XIII of Avignon, they convened the Council of Pisa, of which Cossa became a leading figure. The aim of the council was to end the schism; to this end they deposed both Gregory XII and Benedict XIII and elected a new pope Alexander V in 1409. Gregory and Benedict ignored this decision, however, so that there were now three simultaneous claimants to the papacy. Election to the papacy Alexander V died soon after, and on 25 May 1410 Cossa was consecrated a bishop, taking the name John XXIII. He had become an ordained priest only one day earlier. John XXIII was acknowledged as pope by France, England, Bohemia, Portugal, parts of the Holy Roman Empire, and numerous Northern Italian city states, including Florence and Venice and the Patriarchate of Aquileia; and in the beginning and in 1411-1413 by Hungary and Poland however, the Avignon Pope Benedict XIII was regarded as pope by the Kingdoms of Aragon, Castile, Sicily and Scotland and Gregory XII was still favored by Ladislaus of Naples, Carlo I Malatesta, the princes of Bavaria, Louis III, Elector Palatine, and parts of Germany and Poland. John XXIII made the Medici Bank the bank of the papacy, contributing considerably to the family's wealth and prestige. The main enemy of John was Ladislaus of Naples, who protected Gregory XII in Rome. Following his election as pope, John spent a year in Bologna and then joined forces with Louis II of Anjou to march against Ladislaus. An initial victory proved short-lived and Ladislaus retook Rome in May 1413, forcing John to flee to Florence. In Florence he met Sigismund, King of the Romans. Sigismund wanted to end the schism and urged John to call a general council. John did so with hesitation, at first trying to have the council held in Italy (rather than in a German Imperial City, as Sigismund wanted). The Council of Constance was convened on 30 October 1413. During the third session, rival Pope Gregory XII authorized the council as well. The council resolved that all three popes should abdicate and a new pope be elected. Flight from the Council of Constance In March, John escaped from Constance disguised as a postman. According to the Klingenberger Chronicle, written by a noble client of Frederick IV, Duke of Austria, John XXIII travelled down the Rhine to Schaffhausen in a boat, while Frederick accompanied him with a small band of men on horseback. There was a huge outcry in Constance when it was discovered that John had fled, and Sigismund was furious about this setback to his plans for ending the Schism. The King of the Romans issued orders to all the powers on the Upper

during the Western Schism. The Catholic Church regards him as an antipope, as he opposed Pope Gregory XII whom the Catholic Church now recognizes as the rightful successor of Saint Peter. He was also an opponent of Antipope Benedict XIII, who was recognized by the French bishop as legitimate Pontiff. Cossa was born in the Kingdom of Naples. In 1403, he served as a papal legate in Romagna. He participated in the Council of Pisa in 1408, which sought to end the Western Schism with the election of a third alternative pope. In 1410, he succeeded Antipope Alexander V, taking the name John XXIII. At the instigation of Sigismund, King of the Romans, Pope John called the Council of Constance of 1413, which deposed John XXIII and Benedict XIII, accepted Gregory XII's resignation, and elected Pope Martin V to replace them, thus ending the schism. John XXIII was tried for various crimes, though later accounts question the veracity of those accusations. Towards the end of his life Cossa restored his relationship with the Church and was made Cardinal Bishop of Frascati by Pope Martin V. Early life Baldassarre Cossa was born on the island of Procida in the Kingdom of Naples to the family of Giovanni Cossa, lord of Procida. Initially he followed a military career, taking part in the Angevin-Neapolitan war. His two brothers were sentenced to death for piracy by Ladislaus of Naples. He studied law at the University of Bologna and obtained doctorates in both civil and canon law. Probably at the prompting of his family, in 1392 he entered the service of Pope Boniface IX, first working in Bologna and then in Rome. (The Western Schism had begun in 1378, and there were two competing popes at the time, one in Avignon supported by France and Spain, and one in Rome, supported by most of Italy, Germany and England.) In 1386 he is listed as canon of the cathedral of Bologna. In 1396, he became archdeacon in Bologna. He became Cardinal deacon of Saint Eustachius in 1402 and Papal legate in Romagna in 1403. Johann Peter Kirsch describes Cossa as "utterly worldly-minded, ambitious, crafty, unscrupulous, and immoral, a good soldier but no churchman". At this time Cossa also had some links with local robber bands, which were often used to intimidate his rivals and attack carriages. These connections added to his influence and power in the region. Role in the Western Schism Council of Pisa Cardinal Cossa was one of the seven cardinals who, in May 1408, withdrew their allegiance from Pope Gregory XII, stating that he had broken his solemn oath not to create new cardinals without consulting them in advance. In company with those cardinals who had been following Antipope Benedict XIII of

in his choice of material for the plot (as in his first opera), he manifested a lifelong interest in subjects drawn from classic drama and literature. Salieri's first great success was in the realm of serious opera. Commissioned for an unknown occasion, Salieri's Armida was based on Torquato Tasso's epic poem La Gerusalemme liberata (Jerusalem Delivered); it premiered on 2 June 1771. Armida is a tale of love and duty in conflict and is saturated in magic. The opera is set during the First Crusade and features a dramatic mix of ballet, aria, ensemble, and choral writing, combining theatricality, scenic splendor, and high emotionalism. The work clearly followed in Gluck's footsteps and embraced his reform of serious opera begun with Orfeo ed Euridice and Alceste. The libretto to Armida was by Marco Coltellini, the house poet for the imperial theaters. While Salieri followed the precepts set forth by Gluck and his librettist Ranieri de' Calzabigi in the preface to Alceste, Salieri also drew on some musical ideas from the more traditional opera seria and even opera buffa, creating a new synthesis in the process. Armida was translated into German and widely performed, especially in the northern German states, where it helped to establish Salieri's reputation as an important and innovative modern composer. It was also the first opera to receive a serious preparation in a piano and vocal reduction by in 1783. Armida was soon followed by Salieri's first truly popular success, a commedia per musica in the style of Carlo Goldoni La fiera di Venezia (The Fair of Venice). La fiera was written for Carnival in 1772 and premiered on 29 January. Here Salieri returned to his collaboration with the young Giovanni Boccherini, who crafted an original plot. La fiera featured characters singing in three languages, a bustling portrayal of the Ascension-tide Fair and Carnival in Venice, and large and lengthy ensembles and choruses. It also included an innovative scene that combined a series of on-stage dances with singing from both solo protagonists and the chorus. This was a pattern imitated by later composers, most famously and successfully by Wolfgang Amadeus Mozart in Don Giovanni. Salieri also wrote several bravura arias for a soprano playing the part of a middle-class character that combined coloratura and concertante woodwind solos, another innovation for comic opera that was widely imitated. Salieri's next two operas were not particular or lasting successes. La secchia rapita (The Stolen Bucket) is a parody of the high flown and emotive arias found in Metastasian opera seria. It also contains innovative orchestrations, including the first known use of three tympani. Again a classic of Renaissance literature was the basis of the libretto by Boccherini, in this case a comic mock-epic by Tassoni, in which a war between Modena and Bologna follows the theft of a bucket. This uneven work was followed by a popular comedic success (The Mistress of the Inn), an adaptation of the classic and popular spoken stage comedy La locandiera by Carlo Goldoni, with the libretto prepared by Domenico Poggi. The majority of Salieri's modest number of instrumental works also date from this time. Salieri's instrumental works have been judged by various critics and scholars to lack the inspiration and innovation found in his writing for the stage. These orchestral works are mainly in the galant style, and although they show some development toward the late classical, they reflect a general weakness in comparison to his operatic works of the same and later periods. These works were written for mostly unknown occasions and artists. They include two concertos for pianoforte, one in C major and one in B flat major (both 1773); a concerto for organ in C Major in two movements (the middle movement is missing from the autograph score, or perhaps, it was an improvised organ solo) (also 1773); and two concertante works: a concerto for oboe, violin and cello in D major (1770), and a flute and oboe concerto in C major (1774). These works are among the most frequently recorded of Salieri's compositions. Upon Gassmann's death on 21 January, most likely due to complications from an accident with a carriage some years earlier, Salieri succeeded him as assistant director of the Italian opera in early 1774. On 10 October 1775 Salieri married Therese Helferstorfer, the daughter of a recently deceased financier and official of the court treasury. Sacred music was not a high priority for the composer during this stage of his career, but he did compose an Alleluia for chorus and orchestra in 1774. During the next three years Salieri was primarily concerned with rehearsing and conducting the Italian opera company in Vienna and with teaching. His three complete operas written during this time show the development of his compositional skills, but included no great success, either commercially or artistically. His most important compositions during this period were a symphony in D major, performed in the summer of 1776, and the oratorio La passione di Gesù Cristo with a text by Metastasio, performed during Advent of 1776. After the financial collapse of the Italian opera company in 1777 due to financial mismanagement, Joseph II decided to end the performance of Italian opera, French spoken drama, and ballet. Instead, the two court-owned theaters would be reopened under new management, and partly subsidized by the Imperial Court, as a new National Theater. The re-launched theaters would promote German-language plays and musical productions that reflected Austrian (or as Joseph II would have said) German values, traditions and outlook. The Italian opera buffa company was therefore replaced by a German-language Singspiel troupe. Joseph and his supporters of Imperial reform wanted to encourage pan-national pride that would unite his multi-lingual and ethnic subjects under one common language, and hoped to save a considerable amount of money in the process. Beginning in 1778 the Emperor wished to have new works, in German, composed by his own subjects and brought on the stage with clear Imperial support. This in effect left Salieri's role as assistant court composer in a much-reduced position. Salieri also had never truly mastered the German language, and he now felt no longer competent to continue as assistant opera director. A further blow to his career was when the spoken drama and musical Singspiel were placed on an equal footing. For the young composer there would be few, if any, new compositional commissions to receive from the court. Salieri was left with few financial options and he began casting about for new opportunities. Italian tour (1778–1780) In 1778 Gluck turned down an offer to compose the inaugural opera for La Scala in Milan. Upon the suggestion of Joseph II and with the approval of Gluck, Salieri was offered the commission, which he gratefully accepted. Joseph II granted Salieri permission to take a year-long leave of absence (later extended), enabling him to write for La Scala and to undertake a tour of Italy. Salieri's Italian tour of 1778–80 began with the production of Europa riconosciuta (Europa Recognized) for La Scala (revived in 2004 for the same opera house's re-opening following extensive renovations). From Milan, Salieri included stops in Venice and Rome before returning to Milan. During this tour he wrote three new comic operas and he collaborated with Giacomo Rust on one opera, (The Talisman). Of his Italian works one, La scuola de' gelosi (The School for Jealousy), a witty study of amorous intrigue and emotion, proved a popular and lasting international success. Middle Viennese period and Parisian operas (1780–1788) Upon his return at imperial behest to Vienna in 1780, Salieri wrote one German Singspiel, Der Rauchfangkehrer (The Chimney Sweep), which premiered in 1781. Salieri's Chimney Sweep and Mozart's work for the same company in 1782, Die Entführung aus dem Serail (The Abduction from the Seraglio), were the only two major successes to emerge from the German Singspiel experiment, and only Mozart's opera survived on the stage beyond the close of the 18th century. In 1783 the Italian opera company was revived with singers partly chosen and vetted by Salieri during his Italian tour; the new season opened with a slightly re-worked version of Salieri's recent success La scuola de' gelosi. Salieri then returned to his rounds of rehearsing, composition and teaching. However, his time at home in Vienna quickly ended when an opportunity to write an opera for Paris arose, again through the patronage of Gluck. Salieri traveled abroad to fulfill an important commission. The opera Les Danaïdes (The Danaids) is a five-act tragédie lyrique. The plot was based on an ancient Greek legend that had been the basis for the first play in a trilogy by Aeschylus, entitled The Suppliants. The original commission that reached Salieri in 1783–84 was to assist Gluck in finishing a work for Paris that had been all but completed; in reality, Gluck had failed to notate any of the score for the new opera and gave the entire project over to his young friend. Gluck feared that the Parisian critics would denounce the opera by a young composer known mostly for comic pieces and so the opera was originally billed in the press as being a new work by Gluck with some assistance from Salieri, then shortly before the premiere of the opera the Parisian press reported that the work was to be partly by Gluck and partly by Salieri, and finally after popular and critical success on stage, the opera was acknowledged in a letter to the public by Gluck as being wholly by the young Salieri. Les Danaïdes was received with great acclaim and its popularity with audiences and critics alike produced several further requests for new works for Paris audiences by Salieri. Les Danaïdes followed in the tradition of reform that Gluck had begun in the 1760s and that Salieri had emulated in his earlier opera Armida. Salieri's first French opera contained scenes of great solemnity and festivity, but overshadowing it all was darkness and revenge. The opera depicted politically motivated murder, filial duty and love in conflict, tyrannicide, and finally eternal damnation. The opera, with its dark overture, lavish choral writing, many ballet scenes, and electrifying finale depicting a glimpse of hellish torture, kept the opera on the stage in Paris for over forty years. A young Hector Berlioz recorded the deep impression this work made on him in his Mémoires. Upon returning to Vienna following his success in Paris, Salieri met and befriended Lorenzo Da Ponte and had his first professional encounters with Mozart. Da Ponte wrote his first opera libretto for Salieri, Il ricco d'un giorno (A rich man for a day) in 1784, which was not a success. Salieri next turned to Giambattista Casti as a librettist; a more successful set of collaboration flowed from this pairing. In the meantime Da Ponte began working with Mozart on Le nozze di Figaro (The Marriage of Figaro). In 1785 Salieri produced one of his greatest works with the text by Casti, La grotta di Trofonio (The cave of Trophonius), the first opera buffa published in full score by Artaria. Shortly after this success Joseph II had Mozart and Salieri each contribute a one-act opera and/or Singspiel for production at a banquet in 1786. Salieri collaborated with Casti to produce a parody of the relationship between poet and composer in Prima la musica e poi le parole (First the music and then the words). This short work also highlighted the typical backstage antics of two high flown sopranos. Salieri then returned to Paris for the premiere of his tragédie lyrique Les Horaces (The Horatii), which proved a failure, which was more than made up for with his next Parisian opera Tarare, with a libretto by Beaumarchais. This was intended to be the of reform opera, a completely new

genres. Don Chisciotte was a mix of ballet and opera buffa, and the lead female roles in L'amore innocente were designed to contrast and highlight the different traditions of operatic writing for soprano, even borrowing stylistic flourishes from opera seria in the use of coloratura in what was a short pastoral comedy more in keeping with a Roman Intermezzo. The mixing and pushing against the boundaries of established operatic genres was a continuing hallmark of Salieri's own personal style, and in his choice of material for the plot (as in his first opera), he manifested a lifelong interest in subjects drawn from classic drama and literature. Salieri's first great success was in the realm of serious opera. Commissioned for an unknown occasion, Salieri's Armida was based on Torquato Tasso's epic poem La Gerusalemme liberata (Jerusalem Delivered); it premiered on 2 June 1771. Armida is a tale of love and duty in conflict and is saturated in magic. The opera is set during the First Crusade and features a dramatic mix of ballet, aria, ensemble, and choral writing, combining theatricality, scenic splendor, and high emotionalism. The work clearly followed in Gluck's footsteps and embraced his reform of serious opera begun with Orfeo ed Euridice and Alceste. The libretto to Armida was by Marco Coltellini, the house poet for the imperial theaters. While Salieri followed the precepts set forth by Gluck and his librettist Ranieri de' Calzabigi in the preface to Alceste, Salieri also drew on some musical ideas from the more traditional opera seria and even opera buffa, creating a new synthesis in the process. Armida was translated into German and widely performed, especially in the northern German states, where it helped to establish Salieri's reputation as an important and innovative modern composer. It was also the first opera to receive a serious preparation in a piano and vocal reduction by in 1783. Armida was soon followed by Salieri's first truly popular success, a commedia per musica in the style of Carlo Goldoni La fiera di Venezia (The Fair of Venice). La fiera was written for Carnival in 1772 and premiered on 29 January. Here Salieri returned to his collaboration with the young Giovanni Boccherini, who crafted an original plot. La fiera featured characters singing in three languages, a bustling portrayal of the Ascension-tide Fair and Carnival in Venice, and large and lengthy ensembles and choruses. It also included an innovative scene that combined a series of on-stage dances with singing from both solo protagonists and the chorus. This was a pattern imitated by later composers, most famously and successfully by Wolfgang Amadeus Mozart in Don Giovanni. Salieri also wrote several bravura arias for a soprano playing the part of a middle-class character that combined coloratura and concertante woodwind solos, another innovation for comic opera that was widely imitated. Salieri's next two operas were not particular or lasting successes. La secchia rapita (The Stolen Bucket) is a parody of the high flown and emotive arias found in Metastasian opera seria. It also contains innovative orchestrations, including the first known use of three tympani. Again a classic of Renaissance literature was the basis of the libretto by Boccherini, in this case a comic mock-epic by Tassoni, in which a war between Modena and Bologna follows the theft of a bucket. This uneven work was followed by a popular comedic success (The Mistress of the Inn), an adaptation of the classic and popular spoken stage comedy La locandiera by Carlo Goldoni, with the libretto prepared by Domenico Poggi. The majority of Salieri's modest number of instrumental works also date from this time. Salieri's instrumental works have been judged by various critics and scholars to lack the inspiration and innovation found in his writing for the stage. These orchestral works are mainly in the galant style, and although they show some development toward the late classical, they reflect a general weakness in comparison to his operatic works of the same and later periods. These works were written for mostly unknown occasions and artists. They include two concertos for pianoforte, one in C major and one in B flat major (both 1773); a concerto for organ in C Major in two movements (the middle movement is missing from the autograph score, or perhaps, it was an improvised organ solo) (also 1773); and two concertante works: a concerto for oboe, violin and cello in D major (1770), and a flute and oboe concerto in C major (1774). These works are among the most frequently recorded of Salieri's compositions. Upon Gassmann's death on 21 January, most likely due to complications from an accident with a carriage some years earlier, Salieri succeeded him as assistant director of the Italian opera in early 1774. On 10 October 1775 Salieri married Therese Helferstorfer, the daughter of a recently deceased financier and official of the court treasury. Sacred music was not a high priority for the composer during this stage of his career, but he did compose an Alleluia for chorus and orchestra in 1774. During the next three years Salieri was primarily concerned with rehearsing and conducting the Italian opera company in Vienna and with teaching. His three complete operas written during this time show the development of his compositional skills, but included no great success, either commercially or artistically. His most important compositions during this period were a symphony in D major, performed in the summer of 1776, and the oratorio La passione di Gesù Cristo with a text by Metastasio, performed during Advent of 1776. After the financial collapse of the Italian opera company in 1777 due to financial mismanagement, Joseph II decided to end the performance of Italian opera, French spoken drama, and ballet. Instead, the two court-owned theaters would be reopened under new management, and partly subsidized by the Imperial Court, as a new National Theater. The re-launched theaters would promote German-language plays and musical productions that reflected Austrian (or as Joseph II would have said) German values, traditions and outlook. The Italian opera buffa company was therefore replaced by a German-language Singspiel troupe. Joseph and his supporters of Imperial reform wanted to encourage pan-national pride that would unite his multi-lingual and ethnic subjects under one common language, and hoped to save a considerable amount of money in the process. Beginning in 1778 the Emperor wished to have new works, in German, composed by his own subjects and brought on the stage with clear Imperial support. This in effect left Salieri's role as assistant court composer in a much-reduced position. Salieri also had never truly mastered the German language, and he now felt no longer competent to continue as assistant opera director. A further blow to his career was when the spoken drama and musical Singspiel were placed on an equal footing. For the young composer there would be few, if any, new compositional commissions to receive from the court. Salieri was left with few financial options and he began casting about for new opportunities. Italian tour (1778–1780) In 1778 Gluck turned down an offer to compose the inaugural opera for La Scala in Milan. Upon the suggestion of Joseph II and with the approval of Gluck, Salieri was offered the commission, which he gratefully accepted. Joseph II granted Salieri permission to take a year-long leave of absence (later extended), enabling him to write for La Scala and to undertake a tour of Italy. Salieri's Italian tour of 1778–80 began with the production of Europa riconosciuta (Europa Recognized) for La Scala (revived in 2004 for the same opera house's re-opening following extensive renovations). From Milan, Salieri included stops in Venice and Rome before returning to Milan. During this tour he wrote three new comic operas and he collaborated with Giacomo Rust on one opera, (The Talisman). Of his Italian works one, La scuola de' gelosi (The School for Jealousy), a witty study of amorous intrigue and emotion, proved a popular and lasting international success. Middle Viennese period and Parisian operas (1780–1788) Upon his return at imperial behest to Vienna in 1780, Salieri wrote one German Singspiel, Der Rauchfangkehrer (The Chimney Sweep), which premiered in 1781. Salieri's Chimney Sweep and Mozart's work for the same company in 1782, Die Entführung aus dem Serail (The Abduction from the Seraglio), were the only two major successes to emerge from the German Singspiel experiment, and only Mozart's opera survived on the stage beyond the close of the 18th century. In 1783 the Italian opera company was revived with singers partly chosen and vetted by Salieri during his Italian tour; the new season opened with a slightly re-worked version of Salieri's recent success La scuola de' gelosi. Salieri then returned to his rounds of rehearsing, composition and teaching. However, his time at home in Vienna quickly ended when an opportunity to write an opera for Paris arose, again through the patronage of Gluck. Salieri traveled abroad to fulfill an important commission. The opera Les Danaïdes (The Danaids) is a five-act tragédie lyrique. The plot was based on an ancient Greek legend that had been the basis for the first play in a trilogy by Aeschylus, entitled The Suppliants. The original commission that reached Salieri in 1783–84 was to assist Gluck in finishing a work for Paris that had been all but completed; in reality, Gluck had failed to notate any of the score for the new opera and gave the entire project over to his young friend. Gluck feared that the Parisian critics would denounce the opera by a young composer known mostly for comic pieces and so the opera was originally billed in the press as being a new work by Gluck with some assistance from Salieri, then shortly before the premiere of the opera the Parisian press reported that the work was to be partly by Gluck and partly by Salieri, and finally after popular and critical success on stage, the opera was acknowledged in a letter to the public by Gluck as being wholly by the young Salieri. Les Danaïdes was received with great acclaim and its popularity with audiences and critics alike produced several further requests for new works for Paris audiences by Salieri. Les Danaïdes followed in the tradition of reform that Gluck had begun in the 1760s and that Salieri had emulated in his earlier opera Armida. Salieri's first French opera contained scenes of great solemnity and festivity, but overshadowing it all was darkness and revenge. The opera depicted politically motivated murder, filial duty and love in conflict, tyrannicide, and finally eternal damnation. The opera, with its dark overture, lavish choral writing, many ballet scenes, and electrifying finale depicting a glimpse of hellish torture, kept the opera on the stage in Paris for over forty years. A young Hector Berlioz recorded the deep impression this work made on him in his Mémoires. Upon returning to Vienna following his success in Paris, Salieri met and befriended Lorenzo Da Ponte and had his first professional encounters with Mozart. Da Ponte wrote his first opera libretto for Salieri, Il ricco d'un giorno (A rich man for a day) in 1784, which was not a success. Salieri next turned to Giambattista Casti as a librettist; a more successful set of collaboration flowed from this pairing. In the meantime Da Ponte began working with Mozart on Le nozze di Figaro (The Marriage of Figaro). In 1785 Salieri produced one of his greatest works with the text by Casti, La grotta di Trofonio (The cave of Trophonius), the first opera buffa published in full score by Artaria. Shortly after this success Joseph II had Mozart and Salieri each contribute a one-act opera and/or Singspiel for production at a banquet in 1786. Salieri collaborated with Casti to produce a parody of the relationship between poet and composer in Prima la musica e poi le parole (First the music and then the words). This short work also highlighted the typical backstage antics of two high flown sopranos. Salieri then returned to Paris for the premiere of his tragédie lyrique Les Horaces (The Horatii), which proved a failure, which was more than made up for with his next Parisian opera Tarare, with a libretto by Beaumarchais. This was intended to be the of reform opera, a completely new synthesis of poetry and music that was an 18th-century anticipation of the ideals of Richard Wagner. Salieri also created a sacred cantata Le Jugement dernier (The Last Judgement). The success of his opera Tarare was such that it was soon translated into Italian at Joseph II's behest by Lorenzo Da Ponte as Axur, re d'Ormus (Axur, king of Hormuz) and staged at the royal wedding of Franz II in 1788. Late Viennese operas (1788–1804) In 1788 Salieri returned to Vienna, where he remained for the rest of his life. In that year he became Kapellmeister of the Imperial Chapel upon the death of Giuseppe Bonno; as Kapellmeister he conducted the music and musical school connected with the chapel until shortly before his death, being officially retired from the post in 1824. His Italian adaptation of Tarare, Axur proved to be his greatest international success. Axur was widely produced throughout Europe and it even reached South America with the exiled royal house of Portugal in 1824. Axur and his other new compositions completed by 1792 marked the height of Salieri's popularity and his influence. Just as his apogee of fame was being reached abroad, his influence in Vienna began to diminish with the death of Joseph II in 1790. Joseph's death deprived Salieri of his greatest patron and protector. During this period of imperial change in Vienna and revolutionary ferment in France, Salieri composed two additional extremely innovative musical dramas to libretti by Giovanni Casti. Due, however, to their satiric and overtly liberal political inclinations, both operas were seen as unsuitable for public performance in the politically reactive cultures of Leopold II and later Francis II. This resulted in two of his most original operas being consigned to his desk drawer, namely Cublai, gran kan de' Tartari (Kublai Grand Kahn of Tartary) a satire on the autocracy and court intrigues at the court of the Russian Tsarina, Catherine the Great, and Catilina a semi-comic/semi-tragic account of the Catiline conspiracy that attempted to overthrow the Roman republic during the consulship of Cicero. These operas were composed in 1787 and 1792 respectively. Two other operas of little success and long term importance were composed in 1789, and one great popular success La cifra (The Cipher). As Salieri's political position became insecure he was retired as director of the Italian opera in 1792. He continued to write new operas per imperial contract until 1804, when he voluntarily withdrew from the stage. Of his late works for the stage only two works gained wide popular esteem during his life, Palmira, regina di Persia (Palmira, queen of Persia) 1795 and (Caesar on Pharmacusa), both drawing on the heroic and exotic success established with Axur. His late opera based on William Shakespeare's The Merry Wives of Windsor, Falstaff ossia Le tre burle (Falstaff, or the three tricks) (1799) has found a wider audience in modern times than its original reception promised. His last opera was a German-language Singspiel (The negroes), a melodrama set in colonial Virginia with a text by Georg Friedrich Treitschke (the author of the libretto for Beethoven's Fidelio); it was performed in 1804 and was a complete failure. Life after opera (1804–1825) When Salieri retired from the stage, he recognized that artistic styles had changed and he felt that he no longer had the creative capacity to adapt or the emotional desire to continue. Also as Salieri aged he moved slowly away from his more liberal political stances as he saw the enlightened reform of Joseph II's reign, and the hoped-for reforms of the French revolution, replaced with more radical revolutionary ideas. As the political situation threatened and eventually overwhelmed Austria, which was repeatedly crushed by French political forces, Salieri's first and most important biographer Ignaz von Mosel described the emotional effect that this political, social, and cultural upheaval had on the composer. Mosel noted that these radical changes, especially the invasion and defeat of Austria, and the occupation of Vienna intertwined with the personal losses that struck Salieri in the same period led to his withdrawal from operatic work. Related to this Mosel quotes the aged composer concerning the radical changes in musical taste that were underway in the age of Beethoven, "From that period [circa 1800] I realized that musical taste was gradually changing in a manner completely contrary to that of my own times. Eccentricity and confusion of genres replaced reasoned and masterful simplicity." As his teaching and work with the imperial chapel continued, his duties required the composition of a large number of sacred works, and in his last years it was almost exclusively in religious works and teaching that Salieri occupied himself. Among his compositions written for the chapel were two complete sets of vespers, many graduals, offertories, and four orchestral masses. During this period he lost his only son in 1805 and his wife in 1807. Salieri continued to conduct publicly, including the performance on 18 March 1808 of Haydn's The Creation during which Haydn collapsed, and several premieres by Beethoven including the 1st and 2nd Piano Concertos and Wellington's Victory. He also continued to help administer several charities and organize their musical events. His remaining secular works in this late period fall into three categories: first, large scale cantatas and one oratorio Habsburg written on patriotic themes or in response to the international political situation, pedagogical works written to aid his students in voice, and finally simple songs, rounds or canons written for home entertainment; many with original poetry by the composer. He also composed one large scale instrumental work in 1815 intended as a study in late classical orchestration: Twenty-Six Variations for the Orchestra on a Theme called La Folia di Spagna. The theme is likely folk derived and is known as La Folía. This simple melodic and harmonic progression had served as an inspiration for many baroque composers, and would be used by later romantic and post-romantic composers. Salieri's setting is a brooding work in the minor key, which rarely moves far from the original melodic material, its main interest lies in the deft and varied handling of orchestral colors. La Folia was the most monumental set of orchestral variations before Brahms' Variations on a Theme by Haydn. His teaching of budding young musicians continued, and among his pupils in composition (usually vocal) were Ludwig van Beethoven, Antonio Casimir Cartellieri, Franz Liszt and Franz Schubert. He also instructed many prominent singers throughout his career, including Caterina Canzi. All but the wealthiest of his pupils received their lessons for free, a tribute to the kindness Gassmann had shown Salieri as a penniless orphan. Salieri was committed to medical care and suffered dementia for the last year and a half of his life. He died in Vienna on 7 May 1825, aged 74 and was buried in the Matzleinsdorfer Friedhof on 10 May. At his memorial service on 22 June 1825, his own Requiem in C minor – composed in 1804 – was performed for the first time. His remains were later transferred to the Zentralfriedhof. His monument is adorned by a poem

we emerge from the gloom! It might not be unprofitable, now and then, to send us mortals—the dissatisfied ones, at least, and that's a large proportion—into some tunnel of several days' journey. We'd perhaps grumble less, afterward, at God's handiwork. In March 1916, the Bureau of Investigation suspected German terrorists were making bombs in the tunnel, and broke through the roof of the tunnel with jackhammers. They found nothing, installed an electric light, and resealed it. In the 1920s, it was rumored to be used for both mushroom growing and bootleg whiskey stills, even though there was no access into the main portion of the tunnel. It became an object of local folklore and legend. In 1936, the New York City Police Department unsuccessfully attempted to enter the tunnel, in order to look for the body of a hoodlum supposedly buried there. In 1941, it was rumored to have been inspected by the federal Works Progress Administration to determine its structural strength, but there is no evidence of this. A few years later, it was once again rumored to have been opened, this time by the FBI, in an unsuccessful search for spies; however, there is no evidence of this. During the late 1950s, it was sought by two rail historians, George Horn and Martin Schachne, but they did not gain access to the tunnel itself. Rediscovery Having fallen from public notice, the tunnel was rediscovered in 1980 by then 20-year-old Robert Diamond, who entered from a manhole he located at Atlantic Avenue and Court Street, crawled a distance of underground through a filled-in section of tunnel less than two feet high, and located the bulkhead wall that sealed off the main portion of the tunnel. With the assistance of a Brooklyn Union Gas Co. (now National Grid) engineering crew, he then broke through the massive concrete bulkhead wall, which is several feet thick. Diamond thereby opened access to the main portion of the tunnel, and began to popularize the tunnel as an antiquity. He led tours of its interior from 1982 until December 17, 2010, when the Department of Transportation terminated his contract, citing safety concerns. The tunnel has been listed on the National Register of Historic Places since 1989. The History Channel series Cities of the Underworld ran a segment ("New York's Secret Societies") on the tunnel in Fall 2008. See also Beach Pneumatic Transit Brooklyn Historic Railway Association Park Avenue main line, another railroad line in New York City that may have contained the oldest rail tunnels in the U.S. Track 61 (New York City) National Register of Historic Places listings in Kings County, New York References Notes Citations Further reading The Atlantic Avenue Tunnel (Arrt's Arrchives) Transportation buildings and structures in Brooklyn Long Island Rail Road Railway tunnels on the National Register of Historic Places Railroad tunnels in New York City History of transportation in New York City National Register of Historic Places in New York City Historic districts on the National Register of Historic Places in New York (state) Tunnels completed in 1844 Cobble Hill, Brooklyn National Register of Historic Places in Brooklyn Proposed buildings and

In the 1920s, it was rumored to be used for both mushroom growing and bootleg whiskey stills, even though there was no access into the main portion of the tunnel. It became an object of local folklore and legend. In 1936, the New York City Police Department unsuccessfully attempted to enter the tunnel, in order to look for the body of a hoodlum supposedly buried there. In 1941, it was rumored to have been inspected by the federal Works Progress Administration to determine its structural strength, but there is no evidence of this. A few years later, it was once again rumored to have been opened, this time by the FBI, in an unsuccessful search for spies; however, there is no evidence of this. During the late 1950s, it was sought by two rail historians, George Horn and Martin Schachne, but they did not gain access to the tunnel itself. Rediscovery Having fallen from public notice, the tunnel was rediscovered in 1980 by then 20-year-old Robert Diamond, who entered from a manhole he located at Atlantic Avenue and Court Street, crawled a distance of underground through a filled-in section of tunnel less than two feet high, and located the bulkhead wall that sealed off the main portion of the tunnel. With the assistance of a Brooklyn Union Gas Co. (now National Grid) engineering crew, he then broke through the massive concrete bulkhead wall, which is several feet thick. Diamond thereby opened access to the main portion of the tunnel, and began to popularize the tunnel as an antiquity. He led tours of its interior from 1982 until December 17, 2010, when the Department of Transportation terminated his contract, citing safety concerns. The tunnel has been listed on the National Register of Historic Places since 1989. The History Channel series Cities of the Underworld ran a segment ("New York's Secret Societies") on the tunnel in Fall 2008. See also Beach Pneumatic Transit Brooklyn Historic Railway Association Park Avenue main line, another railroad line in New York City that may have contained the oldest rail tunnels in the U.S. Track 61 (New York City) National Register of Historic Places listings in Kings County, New York References Notes Citations Further reading The Atlantic Avenue Tunnel (Arrt's Arrchives) Transportation buildings and structures in Brooklyn Long Island Rail Road Railway tunnels on the National Register of Historic Places Railroad tunnels in New York City History of transportation in New York City National Register of Historic Places in New York City Historic districts on the National Register of Historic Places in New York (state) Tunnels completed in 1844 Cobble Hill, Brooklyn National Register of Historic Places in Brooklyn Proposed buildings and structures in New York City Railway buildings and structures on the National

as Gaspereau Vineyards winning national and international awards for their produce. Today, the Valley is still largely dominated by agriculture but also has a growing diversity in its economies, partly aided by the importance of post-secondary education centres provided by Acadia University in Wolfville, and the Nova Scotia Community College campuses located in Kentville, Middleton, Lawrencetown, and Digby. Michelin has an important truck tire manufacturing plant in Waterville and the Department of National Defence has its largest air force base in Atlantic Canada located at CFB Greenwood along with an important training facility at Camp Aldershot, near Kentville. Tourism is also an important industry and the Annapolis Valley is known for its scenic farmland, although today some is threatened with suburban development in the eastern end, and a great deal has been abandoned. The valley also struggles with pollution from farm runoffs and residential sewers in its two major rivers, the Annapolis River and the Cornwallis River. The Annapolis Valley additionally has become home to the majority of Nova Scotia wineries, located in either the Gaspereau Valley or in the Canning, Grand Pré, or Bear River areas. The Valley is home to the annual Apple Blossom Festival, held in late spring. In July is the annual Steer Bar-B-Que in Kingston, and Heart of the Valley Festival in Middleton. August sees Mud Creek Days in Wolfville and the Annapolis Valley Exhibition in Lawrencetown. Bridgetown's Cider Festival comes in mid-September. The Canadian Deep Roots Music Festival is held each year at the end of September in Wolfville, a community-based festival, supported by both The Town of Wolfville and Acadia University and built on countless hours of volunteerism by a stable base of over 100 volunteers, and on in-kind and financial support from virtually all sectors of the Valley community. Late October sees Wolfville and Kings County play host to Devour The Food Film Fest, an annual international film festival celebrating all things culinary. Farmers markets in Annapolis Royal, Bridgetown, Middleton, Kentville, Kingsport, Berwick and Wolfville bring a wealth of fresh produce and other fine goods to the public every week. In the fall the Pumpkin People in Kentville entice the

operations. Within the valley itself are two "major" rivers, the Annapolis River which flows west from Caribou Bog in the central part of the valley into Annapolis Basin, and the Cornwallis River which flows east from Caribou Bog into Minas Basin. The North Mountain ridge forms the north side of the Annapolis Valley. Also flowing east, in two smaller valleys north of the Cornwallis River, are the Canard River and the Habitant River, both of which also flow into the Minas Basin. History Long settled by the Mi'kmaq Nation, the valley experienced French settlement at the Habitation at Port-Royal, near modern-day Annapolis Royal in the western part of the valley, beginning in 1605. From there, the Acadians spread throughout the Valley, in various communities, building dykes to claim the tidal lands along the Annapolis and Cornwallis Rivers. They continued throughout the Annapolis Valley until the British-ordered expulsion of Acadians in 1755 which is memorialized at Grand Pré in the eastern part of the valley. New England Planters moved in to occupy the abandoned Acadian farming areas and the region also saw subsequent settlement by Loyalist refugees of the American Revolutionary War, as well as foreign Protestants. These were followed by significant numbers of freed Africans in the War of 1812, Irish immigrants in the mid-19th century and Dutch immigrants after World War II. Agriculture in the Annapolis valley boomed in the late 19th century with the arrival of the Windsor and Annapolis Railway, later the Dominion Atlantic Railway, which developed large export markets for Annapolis Valley apples. The Annapolis Valley Regional Library was established in 1949. It was the first regional library system in Nova Scotia. Economy The Valley has traditionally been built on a diversified agricultural industry, with a wide range of output ranging from livestock to fruit trees and berries. The last quarter century has also seen the development of a wine industry, with such notable wineries as Gaspereau Vineyards winning national and international awards for their produce. Today, the Valley is still largely dominated by agriculture but also has a growing diversity in its economies, partly aided by the importance of post-secondary education centres provided by Acadia University in Wolfville, and the Nova Scotia Community College campuses located in Kentville, Middleton, Lawrencetown, and Digby. Michelin has an important truck tire manufacturing plant in Waterville and the Department of National Defence has its largest air force base in Atlantic Canada located at CFB Greenwood along with an important training facility at Camp Aldershot, near Kentville. Tourism is also an important industry and the Annapolis Valley is known for its scenic farmland, although today some is threatened with suburban development in the eastern end, and a great

anticholinergic properties, and is believed to be devoid of any activity on dopamine, serotonin, or histamine receptors. It is not addictive, and tolerance usually does not develop. However, tolerance may develop in some cases. Ziconotide, a blocker of potent N‐type voltage‐gated calcium channels, is administered intrathecally for the relief of severe, usually cancer-related pain. Adjuvants Certain drugs that have been introduced for uses other than analgesics are also used in pain management. Both first-generation (such as amitriptyline) and newer antidepressants (such as duloxetine) are used alongside NSAIDs and opioids for pain involving nerve damage and similar problems. Other agents directly potentiate the effects of analgesics, such as using hydroxyzine, promethazine, carisoprodol, or tripelennamine to increase the pain-killing ability of a given dose of opioid analgesic. Adjuvant analgesics, also called atypical analgesics, include orphenadrine, mexiletine, pregabalin, gabapentin, cyclobenzaprine, hyoscine (scopolamine), and other drugs possessing anticonvulsant, anticholinergic, and/or antispasmodic properties, as well as many other drugs with CNS actions. These drugs are used along with analgesics to modulate and/or modify the action of opioids when used against pain, especially of neuropathic origin. Dextromethorphan has been noted to slow the development of and reverse tolerance to opioids, as well as to exert additional analgesia by acting upon NMDA receptors, as does ketamine. Some analgesics such as methadone and ketobemidone and perhaps piritramide have intrinsic NMDA action. High-alcohol liquor, two forms of which were found in the US Pharmacopoeia up until 1916 and in common use by physicians well into the 1930s, has been used in the past as an agent for dulling pain, due to the CNS depressant effects of ethyl alcohol, a notable example being the American Civil War. However, the ability of alcohol to relieve severe pain is likely inferior to many analgesics used today (e.g., morphine, codeine). As such, in general, the idea of alcohol for analgesia is considered a primitive practice in virtually all industrialized countries today. The anticonvulsant carbamazepine is used to treat neuropathic pain. Similarly, the gabapentinoids gabapentin and pregabalin are prescribed for neuropathic pain, and phenibut is available without prescription. Gabapentinoids work as α2δ-subunit blockers of voltage-gated calcium channels, and tend to have other mechanisms of action as well. Gabapentinoids are all anticonvulsants, which are most commonly used for neuropathic pain, as their mechanism of action tends to inhibit pain sensation originating from the nervous system. Other uses Topical analgesia is generally recommended to avoid systemic side-effects. Painful joints, for example, may be treated with an ibuprofen- or diclofenac-containing gel (The labeling for topical diclofenac has been updated to warn about drug-induced hepatotoxicity.); capsaicin also is used topically. Lidocaine, an anesthetic, and steroids may be injected into joints for longer-term pain relief. Lidocaine is also used for painful mouth sores and to numb areas for dental work and minor medical procedures. In February 2007 the FDA notified consumers and healthcare professionals of the potential hazards of topical anesthetics entering the bloodstream when applied in large doses to the skin without medical supervision. These topical anesthetics contain anesthetic drugs such as lidocaine, tetracaine, benzocaine, and prilocaine in a cream, ointment, or gel. Uses Topical nonsteroidal anti-inflammatory drugs provide pain relief in common conditions such as muscle sprains and overuse injuries. Since the side effects are also lesser, topical preparations could be preferred over oral medications in these conditions. Contraindications Each different type of analgesic has its own associated side effects. List of drugs with

higher doses, decrease inflammation. The most prominent members of this group of drugs, aspirin, ibuprofen and naproxen, are all available over the counter in most countries. COX-2 inhibitors These drugs have been derived from NSAIDs. The cyclooxygenase enzyme inhibited by NSAIDs was discovered to have at least two different versions: COX1 and COX2. Research suggested most of the adverse effects of NSAIDs to be mediated by blocking the COX1 (constitutive) enzyme, with the analgesic effects being mediated by the COX2 (inducible) enzyme. Thus, the COX2 inhibitors were developed to inhibit only the COX2 enzyme (traditional NSAIDs block both versions in general). These drugs (such as rofecoxib, celecoxib, and etoricoxib) are equally effective analgesics when compared with NSAIDs, but cause less gastrointestinal hemorrhage in particular. After widespread adoption of the COX-2 inhibitors, it was discovered that most of the drugs in this class increase the risk of cardiovascular events by 40% on average. This led to the withdrawal of rofecoxib and valdecoxib, and warnings on others. Etoricoxib seems relatively safe, with the risk of thrombotic events similar to that of non-coxib NSAID diclofenac. Opioids Morphine, the archetypal opioid, and other opioids (e.g., codeine, oxycodone, hydrocodone, dihydromorphine, pethidine) all exert a similar influence on the cerebral opioid receptor system. Buprenorphine is a partial agonist of the μ-opioid receptor, and tramadol is a serotonin norepinephrine reuptake inhibitor (SNRI) with weak μ-opioid receptor agonist properties. Tramadol is structurally closer to venlafaxine than to codeine and delivers analgesia by not only delivering "opioid-like" effects (through mild agonism of the mu receptor) but also by acting as a weak but fast-acting serotonin releasing agent and norepinephrine reuptake inhibitor. Tapentadol, with some structural similarities to tramadol, presents what is believed to be a novel drug working through two (and possibly three) different modes of action in the fashion of both a traditional opioid and as an SNRI. The effects of serotonin and norepinephrine on pain, while not completely understood, have had causal links established and drugs in the SNRI class are commonly used in conjunction with opioids (especially tapentadol and tramadol) with greater success in pain relief. Dosing of all opioids may be limited by opioid toxicity (confusion, respiratory depression, myoclonic jerks and pinpoint pupils), seizures (tramadol), but opioid-tolerant individuals usually have higher dose ceilings than patients without tolerance. Opioids, while very effective analgesics, may have some unpleasant side-effects. Patients starting morphine may experience nausea and vomiting (generally relieved by a short course of antiemetics such as phenergan). Pruritus (itching) may require switching to a different opioid. Constipation occurs in almost all patients on opioids, and laxatives (lactulose, macrogol-containing or co-danthramer) are typically co-prescribed. When used appropriately, opioids and other central analgesics are safe and effective; however, risks such as addiction and the body's becoming used to the drug (tolerance) can occur. The effect of tolerance means that frequent use of the drug may result in its diminished effect. When safe to do so, the dosage may need to be increased to maintain effectiveness against tolerance, which may be of particular concern regarding patients suffering with chronic pain and requiring an analgesic over long periods. Opioid tolerance is often addressed with opioid rotation therapy in which a patient is routinely switched between two or more non-cross-tolerant opioid medications in order to prevent exceeding safe dosages in the attempt to achieve an adequate analgesic effect. Opioid tolerance should not be confused with opioid-induced hyperalgesia. The symptoms of these two conditions can appear very similar but the mechanism of action is different. Opioid-induced hyperalgesia is when exposure to opioids increases the sensation of pain (hyperalgesia) and can even make non-painful stimuli painful (allodynia). Alcohol

to the plants and animals in the area affected. Abiotic stress is essentially unavoidable. Abiotic stress affects animals, but plants are especially dependent, if not solely dependent, on environmental factors, so it is particularly constraining. Abiotic stress is the most harmful factor concerning the growth and productivity of crops worldwide. Research has also shown that abiotic stressors are at their most harmful when they occur together, in combinations of abiotic stress factors. Examples Abiotic stress comes in many forms. The most common of the stressors are the easiest for people to identify, but there are many other, less recognizable abiotic stress factors which affect environments constantly. The most basic stressors include: High winds Extreme temperatures Drought Flood Other natural disasters, such as tornadoes and wildfires. Cold Heat Lesser-known stressors generally occur on a smaller scale. They include: poor edaphic conditions like rock content and pH levels, high radiation, compaction, contamination, and other, highly specific conditions like rapid rehydration during seed germination. Effects Abiotic stress, as a natural part of every ecosystem, will affect organisms in a variety of ways. Although these effects may be either beneficial or detrimental, the location of the area is crucial in determining the extent of the impact that abiotic stress will have. The higher the latitude of the area affected, the greater the impact of abiotic stress will be on that area. So, a taiga or boreal forest is at the mercy of whatever abiotic stress factors may come along, while tropical zones are much less susceptible to such stressors. Benefits One example of a situation where abiotic stress plays a constructive role in an ecosystem is in natural wildfires. While they can be a human safety hazard, it is productive for these ecosystems to burn out every once in a while so that new organisms can begin to grow and thrive. Even though it is healthy for an ecosystem, a wildfire can still be considered an abiotic stressor, because it puts an obvious stress on individual organisms within the area. Every tree that is scorched and each bird nest that is devoured is a sign of the abiotic stress. On the larger scale, though, natural wildfires are positive manifestations of abiotic stress. What also needs to be taken into account when looking for benefits of abiotic stress, is that one phenomenon may not affect an entire ecosystem in the same way. While a flood will kill most plants living low on the ground in a certain area, if there is rice there, it will thrive in the wet conditions. Another example of this is in phytoplankton and zooplankton. The same types of conditions are usually considered stressful for these two types of organisms. They act very similarly when exposed to ultraviolet light and most toxins, but at elevated temperatures the phytoplankton reacts negatively, while the thermophilic zooplankton reacts positively to the increase in temperature. The two may be living in the same environment, but an increase in temperature of the area would prove stressful only for one of the organisms. Lastly, abiotic stress has enabled species to grow, develop, and evolve, furthering natural selection as it picks out the weakest of a group of organisms. Both plants and animals have evolved mechanisms allowing them to survive extremes. Detriments The most obvious detriment concerning abiotic stress involves farming. It has been claimed by one study that abiotic stress causes the most crop loss of any other factor and that most major crops are reduced in their yield by more than 50% from their potential yield. Because abiotic stress is widely considered a detrimental effect, the research on this branch of the issue is extensive. For more information on the harmful effects of abiotic stress, see the sections below on plants and animals. In plants A plant's first line of defense against abiotic stress is in its roots. If the soil holding the plant is healthy and biologically diverse, the plant will have a higher chance of surviving stressful conditions. The plant responses to stress are dependent on the tissue or organ affected by the stress. For example, transcriptional responses to stress are tissue or cell specific in roots and are quite different depending on the stress involved. One of the primary responses to abiotic stress such as high salinity is the disruption of the Na+/K+ ratio in the cytoplasm of the plant cell. High concentrations of Na+, for example, can decrease the capacity for the plant to take up water and also alter enzyme and transporter functions. Evolved adaptations to efficiently restore cellular ion homeostasis have led to a wide variety of stress tolerant plants. Facilitation, or the positive interactions between different species of plants, is an intricate web of association in a natural environment. It is how plants work together. In areas of high stress, the level of facilitation is especially high as well. This could possibly be because the plants need a stronger network to survive in a harsher environment, so their interactions between species, such as cross-pollination or mutualistic actions, become more common to cope with the severity of their habitat. Plants also adapt very differently from one another, even from a plant living in the same area. When a group of different plant species was prompted by a variety of different stress signals, such as drought or cold, each plant responded uniquely. Hardly any of the responses were similar, even though the plants had become accustomed to exactly the same home environment. Serpentine soils (media with low concentrations of nutrients and high concentrations of heavy metals) can be a source of abiotic stress. Initially, the absorption of toxic metal ions is limited by cell membrane exclusion. Ions that are absorbed into tissues are sequestered in cell vacuoles. This sequestration mechanism is facilitated by proteins on the vacuole membrane. An example of plants that adapt to serpentine soil are Metallophytes, or hyperaccumulators, as they are known for their ability to absorbed heavy metals using the root-to-shoot translocation (which it will absorb into shoots rather than the plant itself). They're also extinguished for their ability to absorb toxic substances from heavy metals. Chemical priming has been proposed to increase tolerance to abiotic stresses in crop plants. In this method, which is analogous to vaccination, stress-inducing chemical agents are introduced to the plant in brief doses so that the plant begins preparing defense mechanisms. Thus, when the abiotic stress occurs, the plant has already prepared defense mechanisms that can be activated faster and increase tolerance. Prior exposure to tolerable doses of biotic stresses such as phloem-feeding insect infestation have also been shown to increase tolerance to abiotic stresses in plant Impact on Food Production Abiotic stress mostly affected plants that are in the agricultural industry. Mostly because of their constant need of adjusting the mechanisms through the effects of climate change such as coldness, drought, salt salinity, heat, toxins, etc. Rice (Oryza

ETR2 and EIN4 proteins. These proteins are used for ethylene signaling against certain stress conditions, such as salt and the ethylene precursor ACC is used to suppress any sensitivity to the salt stress. Phosphate starvation in plants Phosphorus (P) is an essential macronutrient required for plant growth and development, but most of the world's soil is limited in this important plant nutrient. Plants can utilize P mainly in the form if soluble inorganic phosphate (Pi) but are subjected to abiotic stress of P-limitation when there is not sufficient soluble PO4 available in the soil. Phosphorus forms insoluble complexes with Ca and Mg in alkaline soils and Al and Fe in acidic soils that makes it unavailable for plant roots. When there is limited bioavailable P in the soil, plants show extensive abiotic stress phenotype such as short primary roots and more lateral roots and root hairs to make more surface available for Pi absorption, exudation of organic acids and phosphatase to release Pi from complex P containing molecules and make it available for growing plants' organs. It has been shown that PHR1, a MYB - related transcription factor is a master regulator of P-starvation response in plants. PHR1 also has been shown to regulate extensive remodeling of lipids and metabolites during phosphorus limitation stress Drought stress Drought stress defined as naturally occurring water deficit is one of the main causes of crop losses within the agricultural world. This is due to water's necessity in so many fundamental processes in plant growth. It has become especially important in recent years to find a way to combat drought stress. A decrease in precipitation and subsequent increase in drought are extremely likely in the future due to an increase in global warming. Plants have come up with many mechanisms and adaptations to try and deal with drought stress. One of the leading ways that plants combat drought stress is by closing their stomata. A key hormone regulating stomatal opening and closing is abscisic acid (ABA). Synthesis of ABA causes the ABA to bind to receptors. This binding then affects the opening of ion channels thereby decreasing turgor pressure in the stomata and causing them to close. Recent studies, by Gonzalez-Villagra, et al., showed how ABA levels increased in drought-stressed plants (2018). They showed that when plants were placed in a stressful situation they produced more ABA to try and conserve any water they had in their leaves. Another extremely important factor in dealing with drought stress and regulating the uptake and export of water is aquaporins (AQPs). AQPs are integral membrane proteins that make up channels. These channels' main job is the transport of water and other necessary solutes. AQPs are both transcriptionally and post transcriptionally regulated by many different factors such as ABA, GA3, pH and Ca2+ and the specific levels of AQPs in certain parts of the plant, such as roots or leaves, helps to draw as much water into the plant as possible. By understanding both the mechanism of AQPs and the hormone ABA, scientists will be better able to produce drought resistant plants in the future. One interesting thing that has been found in plants that are consistently exposed to drought, is their ability to form a sort of "memory". In a study by Tombesi et al., they found plants who had previously been exposed to drought were able to come up with a sort of strategy to minimize water loss and decrease water use. They found that plants who were exposed to drought conditions actually changed the way they regulated their stomata and what they called "hydraulic safety margin" so as to decrease the vulnerability of the plant. By changing the regulation of stomata and subsequently the transpiration, plants were able to function better in situations where the availability of water decreased. In animals For animals, the most stressful of all the abiotic stressors is heat. This is because many species are unable to regulate their internal body temperature. Even in the species that are able to regulate their own temperature, it is not always a completely accurate system. Temperature determines metabolic rates, heart rates, and other very important factors within the bodies of animals, so an extreme temperature change can easily distress the animal's body. Animals can respond to extreme heat,

later Latin works, such as the Vulgate, such a construction is replaced by quod and a regularly structured sentence, having the subject in the nominative, e.g., ). with case-specific prepositions such as (through), (to/toward), and (across); in exclamations, such as , "wretched me" (spoken by Circe to Ulysses in Ovid's ); to indicate purpose, e.g., ad proficiscendum, "for the purpose of departing"; ad effēminandōs animōs, "for the purpose of weakening [or, effeminating] the spirit". For the accusative endings, see Latin declensions. German The accusative case is used for the direct object in a sentence. The masculine forms for German articles, e.g., 'the', 'a/an', 'my', etc., change in the accusative case: they always end in -en. The feminine, neutral and plural forms do not change. For example, (dog) is a masculine () word, so the article changes when used in the accusative case: . (lit., I have a dog.) In the sentence "a dog" is in the accusative case as it is the second idea (the object) of the sentence. Some German pronouns also change in the accusative case. The accusative case is also used after particular German prepositions. These include , , , , , , after which the accusative case is always used, and , , , , , , , , which can govern either the accusative or the dative. The latter prepositions take the accusative when motion or action is specified (being done into/onto the space), but take the dative when location is specified (being done in/on that space). These prepositions are also used in conjunction with certain verbs, in which case it is the verb in question which governs whether the accusative or dative should be used. Adjective endings also change in the accusative case. Another factor that determines the endings of adjectives is whether the adjective is being used after a definite article (the), after an indefinite article (a/an) or without any article before the adjective (many green apples). In German, the accusative case is also used for some adverbial expressions, mostly temporal ones, as in (This evening I'm staying at home), where is marked as accusative, although not a direct object. Russian In Russian, accusative is used not only to display the direct object of an action, but also to indicate the destination or goal of motion. It is also used with some prepositions. The prepositions and can both take accusative in situations where they are indicating the goal of a motion. In the masculine, Russian also distinguishes between animate and inanimate nouns with regard to the accusative; only the animates carry a marker in this case. The PIE accusative case has nearly eroded in Russian, merging with the genitive or the nominative in most declensions. Only singular first-declension nouns (ending in '', '', or '') have a distinct accusative ('', '', or ''). Esperanto Esperanto grammar involves only two cases, a nominative and an accusative. The accusative is formed by the addition of to the nominative form, and is the case used for direct objects. Other objective functions, including dative functions are achieved with prepositions, all of which normally take the nominative case. Direction of motion can be expressed either by the accusative case, by the preposition (to) with the nominative, or by affixing to the adverbial form . Ido In Ido the suffix is optional, as subject-verb-object order is the norm. Note that this is sometimes done in Esperanto, especially by beginners, but it is considered grammatically incorrect. Finnish Traditional Finnish

, , which can govern either the accusative or the dative. The latter prepositions take the accusative when motion or action is specified (being done into/onto the space), but take the dative when location is specified (being done in/on that space). These prepositions are also used in conjunction with certain verbs, in which case it is the verb in question which governs whether the accusative or dative should be used. Adjective endings also change in the accusative case. Another factor that determines the endings of adjectives is whether the adjective is being used after a definite article (the), after an indefinite article (a/an) or without any article before the adjective (many green apples). In German, the accusative case is also used for some adverbial expressions, mostly temporal ones, as in (This evening I'm staying at home), where is marked as accusative, although not a direct object. Russian In Russian, accusative is used not only to display the direct object of an action, but also to indicate the destination or goal of motion. It is also used with some prepositions. The prepositions and can both take accusative in situations where they are indicating the goal of a motion. In the masculine, Russian also distinguishes between animate and inanimate nouns with regard to the accusative; only the animates carry a marker in this case. The PIE accusative case has nearly eroded in Russian, merging with the genitive or the nominative in most declensions. Only singular first-declension nouns (ending in '', '', or '') have a distinct accusative ('', '', or ''). Esperanto Esperanto grammar involves only two cases, a nominative and an accusative. The accusative is formed by the addition of to the nominative form, and is the case used for direct objects. Other objective functions, including dative functions are achieved with prepositions, all of which normally take the nominative case. Direction of motion can be expressed either by the accusative case, by the preposition (to) with the nominative, or by affixing to the adverbial form . Ido In Ido the suffix is optional, as subject-verb-object order is the norm. Note that this is sometimes done in Esperanto, especially by beginners, but it is considered grammatically incorrect. Finnish Traditional Finnish grammars say the accusative is the case of

constitutive element of the Church. These ecclesial Communities which, specifically because of the absence of the sacramental priesthood, have not preserved the genuine and integral substance of the Eucharistic Mystery cannot, according to Catholic doctrine, be called 'churches' in the proper sense". Views concerning other churches In the Catholic Church, Pope Leo XIII stated in his 1896 bull Apostolicae curae that the Catholic Church believes specifically that Anglican orders were to be considered "absolutely null and utterly void". His argument was as follows. First, the ordination rite of Edward VI had removed the language of a sacrificial priesthood. Ordinations using this new rite occurred for over a century and, because the restoration of the language of "priesthood" a century later in the ordination rite "was introduced too late, as a century had already elapsed since the adoption of the Edwardine Ordinal ... the Hierarchy had become extinct, there remained no power of ordaining." With this extinction of validly ordained bishops in England, "the true Sacrament of Order as instituted by Christ lapsed, and with it the hierarchical succession." As a result, the pope's final judgment was that Anglican ordinations going forward were to be considered "absolutely null and utterly void". Anglican clergy from then on were from then on to be ordained as Catholic priests upon entry into the Catholic Church. A reply from the Archbishops of Canterbury and York (1896) was issued to counter Pope Leo's arguments: Saepius officio: Answer of the Archbishops of Canterbury and York to the Bull Apostolicae Curae of H. H. Leo XIII. They argued that if the Anglican orders were invalid, then the Roman orders were as well since the Pope based his case on the fact that the Anglican ordinals used did not contain certain essential elements but these were not found in the early Roman rites either. Catholics argue, this argument does not consider the sacramental intention involved in validating Holy Orders. In other words, Catholics believe that the ordination rites were reworded so as to invalidate the ordinations because the intention behind the alterations in the rite was a fundamental change in Anglican understanding of the priesthood. It is Roman Catholic doctrine that the teaching of Apostolicae curae is a truth to be "held definitively, but are not able to be declared as divinely revealed," as stated in a commentary by the Congregation for the Doctrine of the Faith. Cardinal Basil Hume explained the conditional character of his ordination of Graham Leonard, former Anglican bishop of the Diocese of London, to the priesthood in the following way: "While firmly restating the judgement of Apostolicae Curae that Anglican ordination is invalid, the Catholic Church takes account of the involvement, in some Anglican episcopal ordinations, of bishops of the Old Catholic Church of the Union of Utrecht who are validly ordained. In particular and probably rare cases the authorities in Rome may judge that there is a 'prudent doubt' concerning the invalidity of priestly ordination received by an individual Anglican minister ordained in this line of succession." At the same time, he stated: "Since the church must be in no doubt of the validity of the sacraments celebrated for the Catholic community, it must ask all who are chosen to exercise the priesthood in the Catholic Church to accept sacramental ordination in order to fulfill their ministry and be integrated into the apostolic succession." Since Apostolicae curae was issued many Anglican jurisdictions have revised their ordinals, bringing them more in line with ordinals of the early Church. Timothy Dufort, writing in The Tablet in 1982, attempted to present an ecumenical solution to the problem of how the Catholic Church might accept Anglican orders without needing to formally repudiate Apostolicae curae at all. Dufort argued that by 1969 all Anglican bishops had acquired apostolic succession fully recognized by Rome, since from the 1930s Old Catholic bishops (the validity of whose orders the Vatican has never questioned) have acted as co-consecrators in the ordination of Anglican bishops. This view has not yet been considered formally by the Holy See, but after Anglican Bishop Graham Leonard converted to Roman Catholicism, he was only reordained in 1994 because of the presence of Old Catholic bishops at his ordination. The question of the validity of Anglican orders has been further complicated by the Anglican ordination of women. In a document it published in July 1998, the Congregation for the Doctrine of the Faith stated that the Catholic Church's declaration on the invalidity of Anglican ordinations is a teaching that the church has definitively propounded and that therefore every Catholic is required to give "firm and definitive assent" to this matter. This being said, in May 2017, Cardinal Francesco Coccopalmerio, President of the Pontifical Council for Legislative Texts, has asked whether the current Catholic position on invalidity could be revised in the future. Orthodox churches Eastern Orthodox While Eastern Orthodox sources often refer to the bishops as "successors of the apostles" under the influence of Scholastic theology, strict Orthodox ecclesiology and theology hold that all legitimate bishops are properly successors of Peter. This also means that presbyters (or "priests") are successors of the apostles. As a result, Orthodox theology makes a distinction between a geographical or historical succession and proper ontological or ecclesiological succession. Hence, the bishops of Rome and Antioch can be considered successors of Peter in a historical sense on account of Peter's presence in the early community. This does not imply that these bishops are more successors of Peter than all others in an ontological sense. According to ancient canons still observed with the Orthodox communion, a bishop must be consecrated by at least three other bishops; so-called "single handed ordinations" do not exist. Moreover, bishops are never ordained "at large" but only for a specific Eucharist community, in due historical and sacramental succession. Other Othodox churches The Eastern Orthodox have often permitted non-Orthodox clergy to be rapidly ordained within Orthodoxy as a matter of pastoral necessity and economia. Priests entering Eastern Orthodoxy from Oriental Orthodoxy and Roman Catholicism have usually been received by "vesting" and have been allowed to function immediately within Eastern Orthodoxy as priests. Recognition of Roman Catholic orders by the Russian Orthodox Church was stipulated in 1667 by the Synod of Moscow, but this position is not universal within the Eastern Orthodox communion. For example, Fr. John Morris of the Antiochian Orthodox Christian Archdiocese of North America, states that "Apostolic Succession is not merely a historical pedigree, but also requires Apostolic Faith. This is because Apostolic Succession is not the private possession of a bishop, but is the attribute of a local Church. A bishop who goes in schism or is cast out of office due to heresy does not take his Apostolic Succession with him as a private possession." The validity of a priest's ordination is decided by each autocephalous Orthodox church. The Armenian Apostolic Church, which is one of the Oriental Orthodox churches, recognises Roman Catholic episcopal consecrations without qualification. In 1922 the Eastern Orthodox Ecumenical Patriarch of Constantinople recognised Anglican orders as valid, holding that they carry "the same validity as the Roman, Old Catholic and Armenian churches possess". In the encyclical "From the Oecumenical Patriarch to the Presidents of the Particular Eastern Orthodox churches", Meletius IV of Constantinople, the Oecumenical Patriarch, wrote: "That the Orthodox theologians who have scientifically examined the question have almost unanimously come to the same conclusions and have declared themselves as accepting the validity of Anglican Orders." Following this declaration, in 1923, the Eastern Orthodox Patriarchate of Jerusalem, as well as the Eastern Orthodox Church of Cyprus agreed by "provisionally acceding that Anglican priests should not be re-ordained if they became Orthodox"; in 1936, the Romanian Orthodox Church "endorsed Anglican Orders". Historically, some Eastern Orthodox bishops have assisted in the consecration of Anglican bishops; for example, in 1870, the Most Reverend Alexander Lycurgus, the Greek Orthodox Archbishop of Syra and Tinos, was one of the bishops who consecrated Henry MacKenzie as the Suffragan Bishop of Nottingham. Succeeding judgements have been more conflicting. The Eastern Orthodox churches require a totality of common teaching to recognise orders and in this broader view find ambiguities in Anglican teaching and practice problematic. Accordingly, in some parts of the Eastern Orthodox Church, Anglican clergy who convert to Orthodoxy are reordained, rather than vested. Anglican Communion The Anglican Communion "has never officially endorsed any one particular theory of the origin of the historic episcopate, its exact relation to the apostolate, and the sense in which it should be thought of as God given, and in fact tolerates a wide variety of views on these points". Its claim to apostolic succession is rooted in the Church of England's evolution as part of the Western Church. Apostolic succession is viewed not so much as conveyed mechanically through an unbroken chain of the laying-on of hands, but as expressing continuity with the unbroken chain of commitment, beliefs and mission starting with the first apostles; and as hence emphasising the enduring yet evolving nature of the Church. When Henry VIII broke away from the jurisdiction of Rome in 1533/4, the English Church () claimed the episcopal polity and apostolic succession inherent in its Catholic past. Reformed theology gained a certain foothold, and under his successor, Edward VI what had been an administrative schism – as the Church under Henry was separated from Rome but remained essentially Roman Catholic in its theology and practice – became a reformation under the guiding hand of Thomas Cranmer. Although care was taken to maintain the unbroken sequence of episcopal consecrations – particularly in the case of Matthew Parker, who was consecrated Archbishop of Canterbury in 1559 by two bishops who had been ordained in the 1530s with the Roman Pontifical and two ordained with the Edwardine Ordinal of 1550 – apostolic succession was not seen as a major concern that a true ministry could not exist without episcopal consecrations: English Reformers such as Richard Hooker rejected the Catholic position that Apostolic Succession is divinely commanded or necessary for true Christian ministry. American Episcopal theologian Richard A. Norris argues that the "foreign Reformed [Presbyterian] churches" were genuine ones despite the lack of apostolic succession because they had been abandoned by their bishops at the Reformation. In very different ways both James II and William III of England made it plain that the Church of England could no longer count on the 'godly prince' to maintain its identity and traditions and the 'High Church' clergy of the time began to look to the idea of apostolic succession as a basis for the church's life. For William Beveridge (Bishop of St Asaph, 1704–8) the importance of this lay in the fact that Christ himself is "continually present at such imposition of hands; thereby transferring the same Spirit, which He had first breathed into His Apostles, upon others successively after them", but the doctrine did not really come to the fore until the time of the Tractarians. In 1833, before his conversion to Roman Catholicism, Newman wrote about the apostolic succession: "We must necessarily consider none to be ordained who has not been ordained". After quoting this, Michael Ramsey continues: "With romantic enthusiasm, the Tractarians propagated this doctrine. In doing so they involved themselves in some misunderstandings of history and in some confusion of theology". He goes on to explain that they ascribed to early Anglican authors a far more exclusive version of the doctrine than was the case, they blurred the distinction between succession in office (Irenaeus) and succession in consecration (Augustine); they spoke of apostolic succession as the channel of grace in a way that failed to do justice to His gracious activity within all the dispensations of the New Covenant. J. B. Lightfoot argued that monarchial episcopacy evolved upwards from a college of presbyters by the elevation of one of their number to be the episcopal president and A.C. Headlam laid great stress on Irenaeus' understanding of succession which had been lost from sight behind the Augustinian 'pipe-line theory'. Lutheran churches Wide variations exist within Lutheranism on this issue. Most Lutheran churches in Scandinavian countries are favorable to the traditional doctrine of apostolic succession. Others de-emphasize it, e.g., many German Lutheran churches in former Prussian lands, resulting from their state-ordered union with Reformed (Calvinist) churches in 1817. Lutheran claims to apostolic succession In Scandinavia and the Baltic region, Lutheran churches participating in the Porvoo Communion (those of Iceland, Norway, Sweden, Finland, Estonia, and Lithuania), as well as non-Porvoo membership Lutheran churches in the region (including those of Latvia, and Russia), as well as the confessional Communion of Nordic Lutheran Dioceses, believe that they ordain their bishops in the apostolic succession in lines stemming from the original apostles. The New Westminster Dictionary of Church History states that "In Sweden the apostolic succession was preserved because the Catholic bishops were allowed to stay in office, but they had to approve changes in the ceremonies." The Lutheran Church of Finland was then one with the Church of Sweden and so holds the same view regarding the see of Åbo/Turku. In 2001, Francis Aloysius Sullivan wrote: "To my knowledge, the Catholic Church has never officially expressed its judgement on the validity of orders as they have been handed down by episcopal succession in these two national Lutheran churches." In 2007, the Holy See declared: "Christian Communities born out of the Reformation of the sixteenth century [...] do not enjoy apostolic succession in the sacrament of Orders, and are, therefore, deprived of a constitutive element of the Church." This statement speaks of the Protestant movement as a whole, not specifically of the Lutheran churches in Sweden and Finland. The 2010 report from the Roman Catholic – Lutheran Dialogue Group for Sweden and Finland, Justification in the Life of the Church, states: "The Evangelical-Lutheran churches in Sweden and Finland [...] believe that they are part of an unbroken apostolic chain of succession. The Catholic Church does however question how the ecclesiastical break in the 16th century has affected the apostolicity of the churches of the Reformation and thus the apostolicity of their ministry." Emil Anton interprets this report as saying that the Roman Catholic Church does not deny or approve the apostolic succession directly, but will continue with further inquiries about the matter. Negotiated at Järvenpää, Finland, and inaugurated with a celebration of the Eucharist at Porvoo Cathedral in 1992, the Porvoo Communion agreement of unity includes the mutual recognition of the traditional apostolic succession among the following churches: Lutheran churches: Evangelical Lutheran Church of Iceland, Church of Norway, Church of Sweden, Evangelical Lutheran Church of Finland, Estonian Evangelical Lutheran Church, Evangelical Lutheran Church of Lithuania, Church of Denmark, observer: Evangelical Lutheran Church of Latvia. Anglican Communion: Church of Ireland, Scottish Episcopal Church, Church of England, the Church in Wales, the Lusitanian Catholic Apostolic Evangelical Church, and the Spanish Reformed Episcopal Church. Of note is the fact that at least one of the Scandinavian Lutheran churches in the Porvoo Communion of churches, the Church of Denmark has bishops, but strictly speaking they were not in the historic apostolic succession prior to their entry into the Porvoo Communion, since their episcopate and holy orders derived from Johannes Bugenhagen, who was a pastor, not a bishop. In 2010, the Church of Denmark joined the Porvoo Communion of churches, after a process of mutual consecrations of bishops had led to the introduction of historic apostolic succession. The Lutheran Church in Great Britain also joined the Porvoo Agreement, in 2014. In Scandinavia, where High Church Lutheranism and Pietist Lutheranism has been highly influential, the Evangelical Lutheran Mission Diocese of Finland, Mission Province of the Church of Sweden, and the Evangelical Lutheran Diocese of Norway entered into schism with their national churches due to "the secularization of the national/state churches in their respective countries involving matters of both Christian doctrine and ethics"; these have altar and pulpit fellowship with through the Communion of Nordic Lutheran Dioceses and are members of the confessional International Lutheran Council with their bishops having lines of apostolic succession from other traditional Lutheran Churches, such as the Evangelical Lutheran Church in Kenya. Similarly, in the High Church Lutheranism of Germany, some religious brotherhoods like Hochkirchliche St. Johannes-Bruderschaft and Hochkirchlicher Apostolat St. Ansgar have managed to arrange for their own bishop to be re-ordained in apostolic succession. The members of these brotherhoods do not form into separate ecclesia. The Evangelical Lutheran Church in America, North America's largest Lutheran body, gained apostolic succession through Lutheran bishops in the historic episcopate; this allowed for full communion with the Episcopal Church in 2000, upon the signing of Called to Common Mission. By this document the full communion between the Evangelical Lutheran Church in America and the Episcopal Church was established. As such, "all episcopal installations in the Evangelical Lutheran Church in America take place with the participation of bishops in the apostolic succession." The Evangelical Lutheran Church in America is headed by a presiding bishop who is elected by the churchwide assembly for a six-year term. The Evangelical Catholic Church, a Lutheran denomination of Evangelical Catholic churchmanship based in North America, taught: In recent years a number of Lutheran churches of the Evangelical Catholic and High Church Lutheran churchmanship in the United States of America have accepted the doctrine of apostolic succession and have successfully recovered it, generally from Independent Catholic churches. At present, most of these church bodies have memberships numbering in the hundreds. The Lutheran Evangelical Protestant Church (LEPC) were some of the earliest Lutherans in America. They have autonomous and congregationally oriented ministries and consecrate male and female deacons, priests and bishops in apostolic succession with the laying on of hands during celebration of Word and Sacrament. They maintain the more protestant view of Apostolic Succession. The Anglo-Lutheran Catholic Church recovered the apostolic succession from Old Catholic and Independent Catholic churches, and adopted a strict episcopal polity. All of its clergy have been ordained (or re-ordained) into the historic apostolic succession. This Church was formed in 1997, with its headquarters in Kansas City, Missouri. The Lutheran Orthodox Church, founded in 2004 traces its historic lineage of apostolic succession through Anglican, Lutheran, and Old Catholic lines. The Lutheran Church - International is another North American Lutheran church which reports that it has recovered the historic apostolic succession. Indifference to the issue Many German Lutherans appear to demur on this issue, which may be sourced in the church governance views of Martin Luther. Luther's reform movement usually did not abrogate the ecclesiastic office of bishop. An important historical context to explicate the wide differences among German Lutheran churches is the Prussian Union of 1817, whereby the secular government directed the Lutheran churches in Prussia to merge with non-Lutheran Reformed churches in Prussia. The Reformed churches generally oppose on principle the traditional doctrine of ecclesiastic Apostolic Succession, e.g., not usually even recognising the church office of bishop. Later in the 19th century, other Lutheran and Reformed congregations merged to form united church bodies in some of the other 39 states of the German Confederation, e.g., in Anhalt, Baden, Bremen, Hesse and Nassau, Hesse-Kassel and Waldeck, and the Palatinate. Yet the partial nature of this list also serves to show that in Germany there remained many Lutherans who never did unite with the Reformed. Other Lutheran churches seem indifferent as a matter of understood doctrine regarding this particular issue of ecclesiastical governance. In America, the conservative Lutheran Church–Missouri Synod (LCMS) places its church authority in the congregation rather than in the bishop, though its founder, C.F.W. Walther, while establishing congregational polity for the LCMS, did consider Polity (a Church's form of government) to be a matter of adiaphora (something indifferent). Still, other conservative Lutherans may favour High Church Lutheranism which remains generally favourable to the traditional doctrine of Apostolic Succession . Methodist churches In the beginnings of the Methodist movement, adherents were instructed to receive the sacraments within the Anglican Church since the Methodists were still a movement and not as yet a separate church in England until 1805. The American Methodists soon petitioned to receive the sacraments from the local preachers who conducted worship services and revivals. The Bishop of London refused to ordain Methodist priests and deacons in the British American colonies. John Wesley, the founder of the movement, was reluctant to allow unordained preachers to administer the sacraments: Some scholars argue that in 1763, Greek Orthodox bishop Erasmus of the Diocese of Arcadia, who was visiting London at the time, consecrated John Wesley a bishop, and ordained several Methodist lay preachers as priests, including John Jones. Wesley could not openly announce his episcopal consecration without incurring the penalty of the Præmunire Act. In light of Wesley's episcopal consecration, the Methodist Church can lay a claim on apostolic succession, as understood in the traditional sense. Since John Wesley "ordained and sent forth every Methodist preacher in his day, who preached and baptized and ordained, and since every Methodist preacher who has ever been ordained as a Methodist was ordained in this direct 'succession' from Wesley, then the Methodist Church teaches that it has all the direct merits coming from apostolic succession, if any such there be." This apostolic succession is recognized by Unity Catholic Church, an independent Catholic church. Most Methodists view apostolic succession outside its high church sense. This is because Wesley believed that the offices of bishop and presbyter constituted one order, citing an ancient opinion from the Church of Alexandria; Jerome, a Church Father, wrote: "For even at Alexandria from the time of Mark the Evangelist until the episcopates of Heraclas and Dionysius the presbyters always named as bishop one of their own number chosen by themselves and set in a more exalted position, just as an army elects a general, or as deacons appoint one of themselves whom they know to be diligent and call him archdeacon. For what function, excepting ordination, belongs to a bishop that does not also belong to a presbyter?" (Letter CXLVI). John Wesley thus argued that for two centuries the succession of bishops in the Church of Alexandria, which was founded by Mark the Evangelist, was preserved through ordination by presbyters alone and was considered valid by that ancient Church. Since the Bishop of London refused to ordain ministers in the British American colonies, this constituted an emergency and as a result, on 2 September 1784, Wesley, along with a priest from the Anglican Church and two other elders, operating under the ancient Alexandrian habitude, ordained Thomas Coke a superintendent, although Coke embraced the title bishop. Today, the United Methodist Church follows this ancient Alexandrian practice as bishops are elected from the presbyterate: the Discipline of the Methodist Church, in ¶303, affirms that "ordination to this ministry is a gift from God to the Church. In ordination, the Church affirms and continues the apostolic ministry through persons empowered by the Holy Spirit." It also uses sacred scripture in support of this practice, namely, 1 Timothy 4:14, which states: The Methodist Church also buttresses this argument with the leg of sacred tradition of the Wesleyan Quadrilateral by citing the Church Fathers, many of whom concur with this view. In addition to the aforementioned arguments – or perhaps instead of them – in 1937 the annual Conference of the British Methodist Church located the "true continuity" with the Church of past ages in "the continuity of Christian experience, the fellowship in the gift of the one Spirit; in the continuity in the allegiance to one Lord, the continued proclamation of the message; the continued acceptance of the mission;..." [through a long chain which goes back to] "the first disciples in the company of the Lord Himself ... This is our doctrine of apostolic succession" [which neither depends on, nor is secured by,] "an official succession of ministers, whether bishops or presbyters, from apostolic times, but rather by fidelity to apostolic truth". The Church of North India, Church of Pakistan and Church of South India are members of the World Methodist Council and the clergy of these three united Protestant churches possess lines of apostolic succession, according to the Anglican understanding of this doctrine, through the Church of India, Burma and Ceylon (CIBC), which finished merging with these three in the 1970s. In June 2014, the Church of Ireland, a province of the Anglican Communion, extended its lines of apostolic succession into the Methodist Church in Ireland, as "the Archbishop of Dublin and Bishop of Down and Dromore took part in the installation of the new President of the Methodist Church of Ireland, the Rev. Peter Murray." In May 2014, the "Church of Ireland’s General Synod approved an agreement signed with the Methodist Church that provided for the interchangeability of clergy, allowing an ordained minister of either church to come under the discipline and oversight of the other." Hussite Church and Moravian Church The Moravian Church, as with the Hussite Church, teaches the doctrine of apostolic succession. The Moravian Church claims apostolic succession as a legacy of the old Unity of the Brethren. In order to preserve the succession, three Bohemian Brethren were consecrated bishops by Bishop Stephen of Austria, a Waldensian bishop who had been ordained by a Roman Catholic bishop in 1434. These three consecrated bishops returned to Litice in Bohemia and then ordained other brothers, thereby preserving the historic episcopate. Presbyterian/Reformed churches Jus Divinum Regiminis Ecclesiastici (English translation: The Divine Right of Church Government), which was promulgated by Presbyterian clergy in 1646, holds that historic ministerial succession is necessary for legitimate ministerial authority. It states that ministerial succession is conferred by elders through the laying on of hands, in accordance with Timothy 4:14. The Westminster Assembly held that "There is one general church visible" and that "every minister of the word is to be ordained by imposition of hands, and prayer, with fasting, by those preaching presbyters to whom it doth belong". The Church of North India, Church of Pakistan and Church of South India are members of the World Alliance of Reformed Churches and the clergy of these three united Protestant churches possess lines of apostolic succession, according to the Anglican understanding of this doctrine, through the Church of India, Burma and Ceylon (CIBC), which finished merging with these three in the 1970s. Pentecostal churches On 6 February 2003, Rt. the Rev. Dr. K. J. Samuel, the Moderator Bishop of the Church of South India (a part of the worldwide Anglican Communion), along with the Rt. Rev. P.M. Dhotekar,

the community of believers, and the obligation to transmit and preserve the "deposit of faith" (the experience of Christ and his teachings contained in the doctrinal "tradition" handed down from the time of the apostles and the written portion, which is Scripture). The apostles then passed on this office and authority by ordaining bishops to follow after them. Roman Catholic theology holds that the apostolic succession effects the power and authority to administer the sacraments except for baptism and matrimony. (Baptism may be administered by anyone and matrimony by the couple to each other.) Authority to so administer such sacraments is passed on only through the sacrament of Holy Orders, a rite by which a priest is ordained (ordination can be conferred only by bishop). The bishop, of course, must be from an unbroken line of bishops stemming from the original apostles selected by Jesus Christ. Thus, apostolic succession is necessary for the valid celebration of the sacraments. On 29 June 2007, the Congregation for the Doctrine of the Faith explained why apostolic succession is integral to, and indeed, "a constitutive element" of the Church. In response to the question why the Second Vatican Council and other official statements of the Catholic Church do not call Protestant Christian Communities "churches", it stated that "according to Catholic doctrine, these Communities do not enjoy apostolic succession in the sacrament of Orders, and are, therefore, deprived of a constitutive element of the Church. These ecclesial Communities which, specifically because of the absence of the sacramental priesthood, have not preserved the genuine and integral substance of the Eucharistic Mystery cannot, according to Catholic doctrine, be called 'churches' in the proper sense". Views concerning other churches In the Catholic Church, Pope Leo XIII stated in his 1896 bull Apostolicae curae that the Catholic Church believes specifically that Anglican orders were to be considered "absolutely null and utterly void". His argument was as follows. First, the ordination rite of Edward VI had removed the language of a sacrificial priesthood. Ordinations using this new rite occurred for over a century and, because the restoration of the language of "priesthood" a century later in the ordination rite "was introduced too late, as a century had already elapsed since the adoption of the Edwardine Ordinal ... the Hierarchy had become extinct, there remained no power of ordaining." With this extinction of validly ordained bishops in England, "the true Sacrament of Order as instituted by Christ lapsed, and with it the hierarchical succession." As a result, the pope's final judgment was that Anglican ordinations going forward were to be considered "absolutely null and utterly void". Anglican clergy from then on were from then on to be ordained as Catholic priests upon entry into the Catholic Church. A reply from the Archbishops of Canterbury and York (1896) was issued to counter Pope Leo's arguments: Saepius officio: Answer of the Archbishops of Canterbury and York to the Bull Apostolicae Curae of H. H. Leo XIII. They argued that if the Anglican orders were invalid, then the Roman orders were as well since the Pope based his case on the fact that the Anglican ordinals used did not contain certain essential elements but these were not found in the early Roman rites either. Catholics argue, this argument does not consider the sacramental intention involved in validating Holy Orders. In other words, Catholics believe that the ordination rites were reworded so as to invalidate the ordinations because the intention behind the alterations in the rite was a fundamental change in Anglican understanding of the priesthood. It is Roman Catholic doctrine that the teaching of Apostolicae curae is a truth to be "held definitively, but are not able to be declared as divinely revealed," as stated in a commentary by the Congregation for the Doctrine of the Faith. Cardinal Basil Hume explained the conditional character of his ordination of Graham Leonard, former Anglican bishop of the Diocese of London, to the priesthood in the following way: "While firmly restating the judgement of Apostolicae Curae that Anglican ordination is invalid, the Catholic Church takes account of the involvement, in some Anglican episcopal ordinations, of bishops of the Old Catholic Church of the Union of Utrecht who are validly ordained. In particular and probably rare cases the authorities in Rome may judge that there is a 'prudent doubt' concerning the invalidity of priestly ordination received by an individual Anglican minister ordained in this line of succession." At the same time, he stated: "Since the church must be in no doubt of the validity of the sacraments celebrated for the Catholic community, it must ask all who are chosen to exercise the priesthood in the Catholic Church to accept sacramental ordination in order to fulfill their ministry and be integrated into the apostolic succession." Since Apostolicae curae was issued many Anglican jurisdictions have revised their ordinals, bringing them more in line with ordinals of the early Church. Timothy Dufort, writing in The Tablet in 1982, attempted to present an ecumenical solution to the problem of how the Catholic Church might accept Anglican orders without needing to formally repudiate Apostolicae curae at all. Dufort argued that by 1969 all Anglican bishops had acquired apostolic succession fully recognized by Rome, since from the 1930s Old Catholic bishops (the validity of whose orders the Vatican has never questioned) have acted as co-consecrators in the ordination of Anglican bishops. This view has not yet been considered formally by the Holy See, but after Anglican Bishop Graham Leonard converted to Roman Catholicism, he was only reordained in 1994 because of the presence of Old Catholic bishops at his ordination. The question of the validity of Anglican orders has been further complicated by the Anglican ordination of women. In a document it published in July 1998, the Congregation for the Doctrine of the Faith stated that the Catholic Church's declaration on the invalidity of Anglican ordinations is a teaching that the church has definitively propounded and that therefore every Catholic is required to give "firm and definitive assent" to this matter. This being said, in May 2017, Cardinal Francesco Coccopalmerio, President of the Pontifical Council for Legislative Texts, has asked whether the current Catholic position on invalidity could be revised in the future. Orthodox churches Eastern Orthodox While Eastern Orthodox sources often refer to the bishops as "successors of the apostles" under the influence of Scholastic theology, strict Orthodox ecclesiology and theology hold that all legitimate bishops are properly successors of Peter. This also means that presbyters (or "priests") are successors of the apostles. As a result, Orthodox theology makes a distinction between a geographical or historical succession and proper ontological or ecclesiological succession. Hence, the bishops of Rome and Antioch can be considered successors of Peter in a historical sense on account of Peter's presence in the early community. This does not imply that these bishops are more successors of Peter than all others in an ontological sense. According to ancient canons still observed with the Orthodox communion, a bishop must be consecrated by at least three other bishops; so-called "single handed ordinations" do not exist. Moreover, bishops are never ordained "at large" but only for a specific Eucharist community, in due historical and sacramental succession. Other Othodox churches The Eastern Orthodox have often permitted non-Orthodox clergy to be rapidly ordained within Orthodoxy as a matter of pastoral necessity and economia. Priests entering Eastern Orthodoxy from Oriental Orthodoxy and Roman Catholicism have usually been received by "vesting" and have been allowed to function immediately within Eastern Orthodoxy as priests. Recognition of Roman Catholic orders by the Russian Orthodox Church was stipulated in 1667 by the Synod of Moscow, but this position is not universal within the Eastern Orthodox communion. For example, Fr. John Morris of the Antiochian Orthodox Christian Archdiocese of North America, states that "Apostolic Succession is not merely a historical pedigree, but also requires Apostolic Faith. This is because Apostolic Succession is not the private possession of a bishop, but is the attribute of a local Church. A bishop who goes in schism or is cast out of office due to heresy does not take his Apostolic Succession with him as a private possession." The validity of a priest's ordination is decided by each autocephalous Orthodox church. The Armenian Apostolic Church, which is one of the Oriental Orthodox churches, recognises Roman Catholic episcopal consecrations without qualification. In 1922 the Eastern Orthodox Ecumenical Patriarch of Constantinople recognised Anglican orders as valid, holding that they carry "the same validity as the Roman, Old Catholic and Armenian churches possess". In the encyclical "From the Oecumenical Patriarch to the Presidents of the Particular Eastern Orthodox churches", Meletius IV of Constantinople, the Oecumenical Patriarch, wrote: "That the Orthodox theologians who have scientifically examined the question have almost unanimously come to the same conclusions and have declared themselves as accepting the validity of Anglican Orders." Following this declaration, in 1923, the Eastern Orthodox Patriarchate of Jerusalem, as well as the Eastern Orthodox Church of Cyprus agreed by "provisionally acceding that Anglican priests should not be re-ordained if they became Orthodox"; in 1936, the Romanian Orthodox Church "endorsed Anglican Orders". Historically, some Eastern Orthodox bishops have assisted in the consecration of Anglican bishops; for example, in 1870, the Most Reverend Alexander Lycurgus, the Greek Orthodox Archbishop of Syra and Tinos, was one of the bishops who consecrated Henry MacKenzie as the Suffragan Bishop of Nottingham. Succeeding judgements have been more conflicting. The Eastern Orthodox churches require a totality of common teaching to recognise orders and in this broader view find ambiguities in Anglican teaching and practice problematic. Accordingly, in some parts of the Eastern Orthodox Church, Anglican clergy who convert to Orthodoxy are reordained, rather than vested. Anglican Communion The Anglican Communion "has never officially endorsed any one particular theory of the origin of the historic episcopate, its exact relation to the apostolate, and the sense in which it should be thought of as God given, and in fact tolerates a wide variety of views on these points". Its claim to apostolic succession is rooted in the Church of England's evolution as part of the Western Church. Apostolic succession is viewed not so much as conveyed mechanically through an unbroken chain of the laying-on of hands, but as expressing continuity with the unbroken chain of commitment, beliefs and mission starting with the first apostles; and as hence emphasising the enduring yet evolving nature of the Church. When Henry VIII broke away from the jurisdiction of Rome in 1533/4, the English Church () claimed the episcopal polity and apostolic succession inherent in its Catholic past. Reformed theology gained a certain foothold, and under his successor, Edward VI what had been an administrative schism – as the Church under Henry was separated from Rome but remained essentially Roman Catholic in its theology and practice – became a reformation under the guiding hand of Thomas Cranmer. Although care was taken to maintain the unbroken sequence of episcopal consecrations – particularly in the case of Matthew Parker, who was consecrated Archbishop of Canterbury in 1559 by two bishops who had been ordained in the 1530s with the Roman Pontifical and two ordained with the Edwardine Ordinal of 1550 – apostolic succession was not seen as a major concern that a true ministry could not exist without episcopal consecrations: English Reformers such as Richard Hooker rejected the Catholic position that Apostolic Succession is divinely commanded or necessary for true Christian ministry. American Episcopal theologian Richard A. Norris argues that the "foreign Reformed [Presbyterian] churches" were genuine ones despite the lack of apostolic succession because they had been abandoned by their bishops at the Reformation. In very different ways both James II and William III of England made it plain that the Church of England could no longer count on the 'godly prince' to maintain its identity and traditions and the 'High Church' clergy of the time began to look to the idea of apostolic succession as a basis for the church's life. For William Beveridge (Bishop of St Asaph, 1704–8) the importance of this lay in the fact that Christ himself is "continually present at such imposition of hands; thereby transferring the same Spirit, which He had first breathed into His Apostles, upon others successively after them", but the doctrine did not really come to the fore until the time of the Tractarians. In 1833, before his conversion to Roman Catholicism, Newman wrote about the apostolic succession: "We must necessarily consider none to be ordained who has not been ordained". After quoting this, Michael Ramsey continues: "With romantic enthusiasm, the Tractarians propagated this doctrine. In doing so they involved themselves in some misunderstandings of history and in some confusion of theology". He goes on to explain that they ascribed to early Anglican authors a far more exclusive version of the doctrine than was the case, they blurred the distinction between succession in office (Irenaeus) and succession in consecration (Augustine); they spoke of apostolic succession as the channel of grace in a way that failed to do justice to His gracious activity within all the dispensations of the New Covenant. J. B. Lightfoot argued that monarchial episcopacy evolved upwards from a college of presbyters by the elevation of one of their number to be the episcopal president and A.C. Headlam laid great stress on Irenaeus' understanding of succession which had been lost from sight behind the Augustinian 'pipe-line theory'. Lutheran churches Wide variations exist within Lutheranism on this issue. Most Lutheran churches in Scandinavian countries are favorable to the traditional doctrine of apostolic succession. Others de-emphasize it, e.g., many German Lutheran churches in former Prussian lands, resulting from their state-ordered union with Reformed (Calvinist) churches in 1817. Lutheran claims to apostolic succession In Scandinavia and the Baltic region, Lutheran churches participating in the Porvoo Communion (those of Iceland, Norway, Sweden, Finland, Estonia, and Lithuania), as well as non-Porvoo membership Lutheran churches in the region (including those of Latvia, and Russia), as well as the confessional Communion of Nordic Lutheran Dioceses, believe that they ordain their bishops in the apostolic succession in lines stemming from the original apostles. The New Westminster Dictionary of Church History states that "In Sweden the apostolic succession was preserved because the Catholic bishops were allowed to stay in office, but they had to approve changes in the ceremonies." The Lutheran Church of Finland was then one with the Church of Sweden and so holds the same view regarding the see of Åbo/Turku. In 2001, Francis Aloysius Sullivan wrote: "To my knowledge, the Catholic Church has never officially expressed its judgement on the validity of orders as they have been handed down by episcopal succession in these two national Lutheran churches." In 2007, the Holy See declared: "Christian Communities born out of the Reformation of the sixteenth century [...] do not enjoy apostolic succession in the sacrament of Orders, and are, therefore, deprived of a constitutive element of the Church." This statement speaks of the Protestant movement as a whole, not specifically of the Lutheran churches in Sweden and Finland. The 2010 report from the Roman Catholic – Lutheran Dialogue Group for Sweden and Finland, Justification in the Life of the Church, states: "The Evangelical-Lutheran churches in Sweden and Finland [...] believe that they are part of an unbroken apostolic chain of succession. The Catholic Church does however question how the ecclesiastical break in the 16th century has affected the apostolicity of the churches of the Reformation and thus the apostolicity of their ministry." Emil Anton interprets this report as saying that the Roman Catholic Church does not deny or approve the apostolic succession directly, but will continue with further inquiries about the matter. Negotiated at Järvenpää, Finland, and inaugurated with a celebration of the Eucharist at Porvoo Cathedral in 1992, the Porvoo Communion agreement of unity includes the mutual recognition of the traditional apostolic succession among the following churches: Lutheran churches: Evangelical Lutheran Church of Iceland, Church of Norway, Church of Sweden, Evangelical Lutheran Church of Finland, Estonian Evangelical Lutheran Church, Evangelical Lutheran Church of Lithuania, Church of Denmark, observer: Evangelical Lutheran Church of Latvia. Anglican Communion: Church of Ireland, Scottish Episcopal Church, Church of England, the Church in Wales, the Lusitanian Catholic Apostolic Evangelical Church, and the Spanish Reformed Episcopal Church. Of note is the fact that at least one of the Scandinavian Lutheran churches in the Porvoo Communion of churches, the Church of Denmark has bishops, but strictly speaking they were not in the historic apostolic succession prior to their entry into the Porvoo Communion, since their episcopate and holy orders derived from Johannes Bugenhagen, who was a pastor, not a bishop. In 2010, the Church of Denmark joined the Porvoo Communion of churches, after a process of mutual consecrations of bishops had led to the introduction of historic apostolic succession. The Lutheran Church in Great Britain also joined the Porvoo Agreement, in 2014. In Scandinavia, where High Church Lutheranism and Pietist Lutheranism has been highly influential, the Evangelical Lutheran Mission Diocese of Finland, Mission Province of the Church of Sweden, and the Evangelical Lutheran Diocese of Norway entered into schism with their national churches due to "the secularization of the national/state churches in their respective countries involving matters of both Christian doctrine and ethics"; these have altar and pulpit fellowship with through the Communion of Nordic Lutheran Dioceses and are members of the confessional International Lutheran Council with their bishops having lines of apostolic succession from other traditional Lutheran Churches, such as the Evangelical Lutheran Church in Kenya. Similarly, in the High Church Lutheranism of Germany, some religious brotherhoods like Hochkirchliche St. Johannes-Bruderschaft and Hochkirchlicher Apostolat St. Ansgar have managed to arrange for their own bishop to be re-ordained in apostolic succession. The members of these brotherhoods do not form into separate ecclesia. The Evangelical Lutheran Church in America, North America's largest Lutheran body, gained apostolic succession through Lutheran bishops in the historic episcopate; this allowed for full communion with the Episcopal Church in 2000, upon the signing of Called to Common Mission. By this document the full communion between the Evangelical Lutheran Church in America and the Episcopal Church was established. As such, "all episcopal installations in the Evangelical Lutheran Church in America take place with the participation of bishops in the apostolic succession." The Evangelical Lutheran Church in America is headed by a presiding bishop who is elected by the churchwide assembly for a six-year term. The Evangelical Catholic Church, a Lutheran denomination of Evangelical Catholic churchmanship based in North America, taught: In recent years a number of Lutheran churches of the Evangelical Catholic and High Church Lutheran churchmanship in the United States of America have accepted the doctrine of apostolic succession and have successfully recovered it, generally from Independent Catholic churches. At present, most of these church bodies have memberships numbering in the hundreds. The Lutheran Evangelical Protestant Church (LEPC) were some of the earliest Lutherans in America. They have autonomous and congregationally oriented ministries and consecrate male and female deacons, priests and bishops in apostolic succession with the laying on of hands during celebration of Word and Sacrament. They maintain the more protestant view of Apostolic Succession. The Anglo-Lutheran Catholic Church recovered the apostolic succession from Old Catholic and Independent Catholic churches, and adopted a strict episcopal polity. All of its clergy have been ordained (or re-ordained) into the historic apostolic succession. This Church was formed in 1997, with its headquarters in Kansas City, Missouri. The Lutheran Orthodox Church, founded in 2004 traces its historic lineage of apostolic succession through Anglican, Lutheran, and Old Catholic lines. The Lutheran Church - International is another North American Lutheran church which reports that it has recovered the historic apostolic succession. Indifference to the issue Many German Lutherans appear to demur on this issue, which may be sourced in the church governance views of Martin Luther. Luther's reform movement usually did not abrogate the ecclesiastic office of bishop. An important historical context to explicate the wide differences among German Lutheran churches is the Prussian Union of 1817, whereby the secular government directed the Lutheran churches in Prussia to merge with non-Lutheran Reformed churches in Prussia. The Reformed churches generally oppose on principle the traditional doctrine of ecclesiastic Apostolic Succession, e.g., not usually even recognising the church office of bishop. Later in the 19th century, other Lutheran and Reformed congregations merged to form united church bodies in some of the other 39 states of the German Confederation, e.g., in Anhalt, Baden, Bremen, Hesse and Nassau, Hesse-Kassel and Waldeck, and the Palatinate. Yet the partial nature of this list also serves to show that in Germany there remained many Lutherans who never did unite with the Reformed. Other Lutheran churches seem indifferent as a matter of understood doctrine regarding this particular issue of ecclesiastical governance. In America, the conservative Lutheran Church–Missouri Synod (LCMS) places its church authority in the congregation rather than in the bishop, though its founder, C.F.W. Walther, while establishing congregational polity for the LCMS, did consider Polity (a Church's form of government) to be a matter of adiaphora (something indifferent). Still, other conservative Lutherans may favour High Church Lutheranism which remains generally favourable to the traditional doctrine of Apostolic Succession . Methodist churches In the beginnings of the Methodist movement, adherents were instructed to receive the sacraments within the Anglican Church since the Methodists were still a movement and not as yet a separate church in England until 1805. The American Methodists soon petitioned to receive the sacraments from the local preachers who conducted worship services and revivals. The Bishop of London refused to ordain Methodist priests and deacons in the British American colonies. John Wesley, the founder of the movement, was reluctant to allow unordained preachers to administer the sacraments: Some scholars argue that in 1763, Greek Orthodox bishop Erasmus of the Diocese of Arcadia, who was visiting London at the time, consecrated John Wesley a bishop, and ordained several Methodist lay preachers as priests, including John Jones. Wesley could not openly announce his episcopal consecration without incurring the

Ascorbic acid is an organic compound with formula , originally called hexuronic acid. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions. It is a mild reducing agent. Ascorbic acid exists as two enantiomers (mirror-image isomers), commonly denoted "" (for "levo") and "" (for "dextro"). The isomer is the one most often encountered: it occurs naturally in many foods, and is one form ("vitamer") of vitamin C, an essential nutrient for humans and many animals. Deficiency of vitamin C causes scurvy, formerly a major disease of sailors in long sea voyages. It is used as a food additive and a dietary supplement for its antioxidant properties. The "" form can be made via chemical synthesis but has no significant biological role. History The antiscorbutic properties of certain foods were demonstrated in the 18th century by James Lind. In 1907, Axel Holst and Theodor Frølich discovered that the antiscorbutic factor was a water-soluble chemical substance, distinct from the one that prevented beriberi. Between 1928 and 1932, Albert Szent-Györgyi isolated a candidate for this substance, which he called it "hexuronic acid", first from plants and later from animal adrenal glands. In 1932 Charles Glen King confirmed that it was indeed the antiscorbutic factor. In 1933, sugar chemist Walter Norman Haworth, working with samples of "hexuronic acid" that Szent-Györgyi had isolated from paprika and sent him in the previous year, deduced the correct structure and optical-isomeric nature of the compound, and in 1934 reported its first synthesis. In reference to the compound's antiscorbutic properties, Haworth and Szent-Györgyi proposed to rename it "a-scorbic acid" for the compound, and later specifically -ascorbic acid. Because of their work, in 1937 the Nobel Prizes for chemistry and medicine were awarded to Haworth and Szent-Györgyi, respectively. Chemical properties Acidity Ascorbic acid is a vinylogous acid and forms the ascorbate anion when deprotonated on one of the hydroxyls. This property is characteristic of reductones: enediols with a carbonyl group adjacent to the enediol group, namely with the group –C(OH)=C(OH)–C(=O)–. The ascorbate anion is stabilized by electron delocalization that results from resonance between two forms: For this reason, ascorbic acid is much more acidic than would be expected if the compound contained only isolated hydroxyl groups. Salts The ascorbate anion forms salts, such as sodium ascorbate, calcium ascorbate, and potassium ascorbate. Esters Ascorbic acid can also react with organic acids as an alcohol forming esters such as ascorbyl palmitate and ascorbyl stearate. Nucleophilic attack Nucleophilic attack of ascorbic acid on a proton results in a 1,3-diketone: Oxidation The ascorbate ion is the predominant species at typical biological pH values. It is a mild reducing agent and antioxidant. It is oxidized with loss of one electron to form a radical cation and then with loss of a second electron to form dehydroascorbic acid. It typically reacts with oxidants of the reactive oxygen species, such as the hydroxyl radical. Ascorbic acid is special because it can transfer a single electron, owing to the resonance-stabilized nature of its own radical ion, called semidehydroascorbate. The net reaction is: RO• + → RO− + C6H7O → ROH + C6H6O6 On exposure to oxygen, ascorbic acid will undergo further oxidative decomposition to various products including diketogulonic acid, xylonic acid, threonic acid and oxalic acid. Reactive oxygen species are damaging to animals and plants at the molecular level due to their possible interaction with nucleic acids, proteins, and lipids. Sometimes these radicals initiate chain reactions. Ascorbate can terminate these chain radical reactions by electron transfer. The oxidized forms of ascorbate are relatively unreactive and do not cause cellular damage. However, being a good electron donor, excess ascorbate in the presence of free metal ions can not only promote but also initiate free radical reactions, thus making it a potentially dangerous pro-oxidative compound in certain metabolic contexts. Ascorbic acid and its sodium, potassium, and calcium salts are commonly used as antioxidant food additives. These compounds are water-soluble and, thus, cannot protect fats from oxidation: For this purpose, the fat-soluble esters of ascorbic acid with long-chain fatty acids (ascorbyl palmitate or ascorbyl stearate) can be used as food antioxidants. Other reactions It creates volatile compounds when mixed with glucose and amino acids in 90 °C. It is a cofactor in tyrosine oxidation. Uses Food additive The main use of -ascorbic acid and its salts is as food additives, mostly to combat oxidation. It is approved for this purpose in the EU with E number E300, USA, Australia, and New Zealand) Dietary supplement Another major use of -ascorbic acid is as dietary supplement. Niche, non-food uses Ascorbic acid is easily oxidized and so is

C causes scurvy, formerly a major disease of sailors in long sea voyages. It is used as a food additive and a dietary supplement for its antioxidant properties. The "" form can be made via chemical synthesis but has no significant biological role. History The antiscorbutic properties of certain foods were demonstrated in the 18th century by James Lind. In 1907, Axel Holst and Theodor Frølich discovered that the antiscorbutic factor was a water-soluble chemical substance, distinct from the one that prevented beriberi. Between 1928 and 1932, Albert Szent-Györgyi isolated a candidate for this substance, which he called it "hexuronic acid", first from plants and later from animal adrenal glands. In 1932 Charles Glen King confirmed that it was indeed the antiscorbutic factor. In 1933, sugar chemist Walter Norman Haworth, working with samples of "hexuronic acid" that Szent-Györgyi had isolated from paprika and sent him in the previous year, deduced the correct structure and optical-isomeric nature of the compound, and in 1934 reported its first synthesis. In reference to the compound's antiscorbutic properties, Haworth and Szent-Györgyi proposed to rename it "a-scorbic acid" for the compound, and later specifically -ascorbic acid. Because of their work, in 1937 the Nobel Prizes for chemistry and medicine were awarded to Haworth and Szent-Györgyi, respectively. Chemical properties Acidity Ascorbic acid is a vinylogous acid and forms the ascorbate anion when deprotonated on one of the hydroxyls. This property is characteristic of reductones: enediols with a carbonyl group adjacent to the enediol group, namely with the group –C(OH)=C(OH)–C(=O)–. The ascorbate anion is stabilized by electron delocalization that results from resonance between two forms: For this reason, ascorbic acid is much more acidic than would be expected if the compound contained only isolated hydroxyl groups. Salts The ascorbate anion forms salts, such as sodium ascorbate, calcium ascorbate, and potassium ascorbate. Esters Ascorbic acid can also react with organic acids as an alcohol forming esters such as ascorbyl palmitate and ascorbyl stearate. Nucleophilic attack Nucleophilic attack of ascorbic acid on a proton results in a 1,3-diketone: Oxidation The ascorbate ion is the predominant species at typical biological pH values. It is a mild reducing agent and antioxidant. It is oxidized with loss of one electron to form a radical cation and then with loss of a second electron to form dehydroascorbic acid. It typically reacts with oxidants of the reactive oxygen species, such as the hydroxyl radical. Ascorbic acid is special because it can transfer a single electron, owing to the resonance-stabilized nature of its own radical ion, called semidehydroascorbate. The net reaction is: RO• + → RO− + C6H7O → ROH + C6H6O6 On exposure to oxygen, ascorbic acid will undergo further oxidative decomposition to various products including diketogulonic acid, xylonic acid, threonic acid and oxalic acid. Reactive oxygen species are damaging to animals and plants at the molecular level due to their possible interaction with nucleic acids, proteins, and lipids. Sometimes these radicals initiate chain reactions. Ascorbate can terminate these chain radical reactions by electron transfer. The oxidized forms of ascorbate are relatively unreactive and do not cause cellular damage. However, being a good electron donor, excess ascorbate in the presence of free metal ions can not only promote but also initiate free radical

1995 UEFA Champions League final 1–0, with the winning goal scored by 18-year-old Patrick Kluivert. Ajax again reached the final one year later, but were defeated on penalties by Juventus. Ajax's return as a European force was short-lived, as Van Gaal and several members of the squad soon departed to some of the continent's biggest clubs. The 2000s was a lean decade for the club, with only two Eredivisie championships won. However, Ajax's academy continued to produce star players such as Wesley Sneijder and Rafael van der Vaart. In 2010, Frank de Boer was appointed manager of Ajax and led the club to its first league title in seven years, and record 30th title overall, in the 2010–11 season. This was followed by back-to-back wins in 2011–12 and 2012–13 to match his three consecutive titles as a player in the 1990s. In 2013–14, Ajax were again Eredivisie champions, winning four consecutive league titles for the first time in club history. After finishing as runner-up to PSV in both 2014–15 and 2015–16, De Boer resigned as Ajax head coach in May 2016. Peter Bosz took over the club and led them to the 2017 UEFA Europa League final, their first European final in 21 years. They lost to Manchester United with a lineup that was the youngest ever in a European final, averaging an age of 22 years and 282 days. For the third consecutive season, they finished runner-up in the Eredivisie, this time to Feyenoord. The 2018–19 season for Ajax involved a remarkable run in the UEFA Champions League. Due to their runner-up finish in the 2017–18 Eredivisie, Ajax entered the tournament in the second qualifying round. After successive victories against Sturm Graz, Standard Liège and Dynamo Kyiv, they qualified for the group stage. Ajax was drawn in a group with German champions Bayern Munich, Portuguese side Benfica and Greek champions AEK Athens. Ajax finished runner-up in this group, qualifying for the knockout stages, where they were drawn against three-time defending champions Real Madrid. After losing 1–2 in the first leg, they defeated Real Madrid 4–1 in the away match, stunning the defending champions in their own stadium, the Santiago Bernabéu, with an aggregate score of 5–3. Dušan Tadić was awarded a perfect score of 10 by L'Équipe following the match. Thus, Ajax progressed to quarter-finals and were drawn with Italian champions Juventus. In the first leg in the Johan Cruyff Arena, they drew 1–1. In the second leg at the Juventus Stadium, Ajax came from behind to win 2–1 and 3–2 on aggregate. Matthijs de Ligt scored the winning goal for Ajax to help the team advance to its first Champions League semi-final since 1997. There, they would face English side Tottenham Hotspur. In the first leg of the semi-final, Ajax beat Tottenham 1–0 away from home. In the second leg, Ajax scored twice in the first half to generate a 3–0 lead on aggregate. However, in the second half, Lucas Moura scored three times, including in the 6th minute of added time, resulting in Ajax losing via the away goals rule. Ajax were in first place on goal difference when the 2019–20 Eredivisie was declared void, preventing them being Dutch champions for the 35th time, but still qualified for the 2020–21 UEFA Champions League. UEFA ranking Academies (Youth/Coaching) The club is also particularly famous for its renowned youth programme that has produced many Dutch talents over the years – Johan Cruyff, Edwin van der Sar, Gerald Vanenburg, Frank Rijkaard, Dennis Bergkamp, Rafael van der Vaart, Patrick Kluivert, Marco van Basten, Wesley Sneijder, Maarten Stekelenburg, Nigel de Jong, Frenkie de Jong, and Matthijs de Ligt have come through the ranks and are just some of the talents who have played for Ajax. Ajax also regularly supplies the Dutch national youth teams with local talent. Due to mutual agreements with foreign clubs, the youth academy has also signed foreign players as teenagers before making first team debuts, such as Belgian defensive trio Jan Vertonghen, Toby Alderweireld and Thomas Vermaelen along with winger Tom De Mul, all of whom are full internationals, as well as Dutch international Vurnon Anita and Javier Martina, representing Curaçao. Ajax has also expanded its talent searching programme to South Africa with Ajax Cape Town. Ajax Cape Town was set up with the help of Rob Moore. Ajax has also had a satellite club in the United States under the name Ajax America, until it filed for bankruptcy. There are some youth players from Ajax Cape Town that have been drafted into the Eredivisie squad, such as South African internationals Steven Pienaar, Thulani Serero and Cameroonian international Eyong Enoh. In 1995, the year Ajax won the UEFA Champions League, the Netherlands national team was almost entirely composed of Ajax players, with Edwin van der Sar in goal; players such as Michael Reiziger, Frank de Boer and Danny Blind in defence; Ronald de Boer, Edgar Davids and Clarence Seedorf in midfield; and Patrick Kluivert and Marc Overmars in attack. In 2011, Ajax opened its first youth academies outside the Netherlands when the club partnered up with George Kazianis and All Star Consultancy in Greece to open the Ajax Hellas Youth Academy. The offices are based in Nea Smyrni, Attica, with the main training facility located on the island of Corfu, hosting a total of 15 football youth academies throughout Greece and Cyprus. Eddie van Schaik heads the organization as coach and consultant, introducing the Ajax football philosophy at the various Greek football training camps. In 2016, Ajax launched the ACA (Ajax Coaching Academy) with the intention of sharing knowledge, setting up a variety of camps and clinics for both players and coaches. Stadiums Ajax's first stadium was built in 1911 out of wood and was called Het Houten Stadion ("The Wooden Stadium"). Ajax later played in the Olympic Stadium built for the 1928 Summer Olympics hosted in Amsterdam. This stadium, designed by Jan Wils, is known as the Olympic Stadium. In 1934, Ajax moved to De Meer Stadion in east Amsterdam, designed by architect and Ajax-member Daan Roodenburgh, who had also designed the club's first stadium. It could accommodate 29,500 spectators and Ajax continued to play there until 1996. For big European and national fixtures the club would often play at the Olympic Stadium, which could accommodate about twice the number of spectators. In 1996, Ajax moved to a new home ground in the southeast of the city known as the Amsterdam Arena, since 2018 known as the Johan Cruyff Arena. This stadium was built by the Amsterdam city authority at a cost of $134 million. The stadium is capable of holding approximately 54,990 spectators. The average attendance in 2006–07 was 48,610, rising in the next season to 49,128. The Arena has a retractable roof and set a trend for other modern stadiums built in Europe in the following years. In the Netherlands, the Arena has earned a reputation for a terrible grass pitch caused by the removable roof that, even when open, takes away too much sunlight and fresh air. During the 2008–09 season, ground staff introduced an artificial lighting system that has finally reduced this problem considerably. The much-loved De Meer Stadion was torn down and the land was sold to the city council. A residential neighbourhood now occupies the area. The only thing left of the old stadium are the letters "AJAX", which nowadays is in place on the façade of the youth training grounds De Toekomst, near the Johan Cruyff Arena. Crest and colours Crest In 1900, when the club was founded, the emblem of Ajax was just a picture of an Ajax player. The crest was slightly altered following the club's promotion to the top division in 1911 to match the club's new outfits. In 1928, the club logo was introduced with the head of the Greek hero Ajax. The logo was once again changed in 1990 into an abstract version of the previous one. The new logo still sports the portrait of Ajax, but drawn with just 11 lines, symbolizing the 11 players of a football team. Colours Ajax originally played in an all-black uniform with a red sash tied around the players' waists, but that uniform was soon replaced by a red/white striped shirt and black shorts. Red, black and white are the three colours of the flag of Amsterdam. When under manager Jack Kirwan, however, the club earned promotion to the top flight of Dutch football for the first time in 1911 (then the Eerste Klasse or 'First Class', later named the Eredivisie), Ajax were forced to change their colours because Sparta Rotterdam already had exactly the same outfit. Special kits for away fixtures did not exist at the time and according to football association regulations the newcomers had to change their colours if two teams in the same league had identical uniforms. Ajax opted for white shorts and white shirt with a broad, vertical red stripe over chest and back, which still is Ajax's outfit. Financial AFC Ajax N.V. AFC Ajax are the only Dutch club with an Initial public offering (IPO). The club is registered as a Naamloze vennootschap (N.V.) listed on the stock exchange Euronext Amsterdam, since 17 May 1998. With a launch price of ƒ25,- (Guilders) the club managed to a bring their total revenue up to €54 million (converted) in their first year on the market. After short-lived success, however, the rate dropped, at one point as low as €3.50. Criticism was brought forth that the legal grid for a naamloze vennootschap would not be suitable for a Football club, and that the sports related ambitions would suffer from the new commercial interests of the now listed Ajax. Shares of the company in the year 2008 were valued at approximately €5.90 per share. In 2008, a Commission under guidance of honorary member Uri Coronel concluded that the IPO was of no value to the club, and that measures should be taken to exit the stock exchange by purchasing back all public shares. Ajax remain on the stock exchange. Sponsorship Ajax's shirts have been sponsored by TDK from 1982 to 1991, and by ABN AMRO from 1991 to 2008. AEGON then replaced ABN AMRO as the new head sponsor for a period of seven years. On 1 April 2007, Ajax wore a different sponsor for the match against Heracles Almelo, Florius. Florius is a banking programme launched by ABN AMRO who wanted it to be the shirt sponsor for one match. The shirts have been manufactured by Le Coq Sportif (1973–1977), Puma (1977–1979), Cor du Buy (1979-1980), Le Coq Sportif (1980–1984), Kappa (1985–1989) and Umbro (1989–2000) in the past, and by Adidas since 2000 (until at least 2025). At the conclusion of the 2013–14 season, Ajax won the Football shirt of the Year award for their black and rose colored away shirt by Adidas. The annual award was presented by Subside Sports, which had previously given the award to Internazionale, Juventus and the Belgium national team. It was Ajax's first time winning the award. On 7 November 2014, it was announced that Ajax had agreed to a four-and-a-half-year contract worth €8 million annually with Dutch cable operating company Ziggo as the new shirt sponsor for the club. Having extended their contract with AEGON for half a season until December, the club featured Fonds Gehandicaptensport, a charitable fund for handicapped sports on its away shirts for a six-month period before transitioning to Ziggo in 2015. Kit suppliers and shirt sponsors Kit deals Other teams Reserves team Jong Ajax (formerly more commonly known as Ajax 2) is the reserve team of AFC Ajax. The team is composed mostly of professional footballers, who are often recent graduates from the highest youth level (Ajax A1) serving their first professional contract as a reserve, or players who are otherwise unable to play in the first team. Since 1992, Jong Ajax competed in the Beloften Eredivisie, competing against other reserve teams such as Jong PSV, Jong FC Groningen or Jong AZ. They have won the Beloften Eredivisie title a record eight times, as well as the KNVB Reserve Cup three times, making them the most successful reserve squad in the Netherlands. By winning the Beloften Eredivisie title, Jong Ajax were able to qualify for the actual KNVB Cup, even advancing to the semi-finals on three occasions. Their best result in the Dutch Cup was under manager Jan Olde Riekerink in 2001–02, when a semi-final loss to Utrecht in a Penalty shoot-out after extra time, which saw Utrecht advance, and thus preventing an Ajax–Jong Ajax Dutch Cup final. The 2013–14 season marked the Jupiler League debut of the Ajax reserves' squad, Jong Ajax. Previously playing in the Beloften Eredivisie (a separate league for reserve teams, not included in the Dutch professional or amateur league structure), players were allowed to move around freely between the reserve team and the first team during the season. This is no longer the case as Jong Ajax now registers and fields a separate squad from that of Ajax first team for the Eerste Divisie, the second tier of professional football in the Netherlands. Their home matches are played at Sportpark De Toekomst, except for the occasional match in the Johan Cruyff Arena. Now regarded a semi-professional team in their own respect, the only period in which players are able to move between squads are during the transfer windows, unless the player has made less than 15 appearances for the first team, then he is still eligible to appear in both first team and second team matches during the season. Furthermore, the team is not eligible for promotion to the Eredivisie or to participate in the KNVB Cup. Jong Ajax were joined in the Eerste Divisie by Jong Twente and Jong PSV, reserve teams who have also moved from the Beloften Eredivisie to the Eerste Divisie, in place of VV Katwijk, SC Veendam and AGOVV Apeldoorn, increasing the total number of teams in the Jupiler League from 18 to 20. Ajax reserve squad Jong Ajax left the Beloften Eredivisie in 2013, having held a 21-year tenure in the reserves league, having also won the league title a record eight times (1994, 1996, 1998, 2001, 2002, 2004, 2005, 2009). Amateur team AFC Ajax Amateurs, better known as Ajax Zaterdag, is a Dutch amateur football club founded 18 March 1900. It is the amateur team of the professional club AFC Ajax, who play their home matches at the Sportpark De Toekomst training grounds to a capacity of 5,000. The team was promoted from the Eerste Klasse to the Hoofdklasse ahead of the 2011–12 season, the league in which they are currently competing. The team has won the Eerste Klasse title twice, as well as the *KNVB District Cup West I on two occasions as well. Furthermore, Ajax Zaterdag have also managed to qualify for the KNVB Cup on their own accord on three occasions, namely in 2004, 2005, 2008 and 2021. Even advancing to the second round before bowing out to Vitesse on 24 September 2008. Women's team AFC Ajax Vrouwen (English: AFC Ajax Women) are the women's team of AFC Ajax, competing in the women's eredivisie, the highest level of women's football in the Netherlands. Founded on 18 May 2012, the women's team saw Ajax attracting many of the Netherlands top talents, with International players such as Anouk Hoogendijk, Daphne Koster and Petra Hogewoning joining the Amsterdam club in its maiden season in women's professional football. The team won their first piece of silverware when the defeated PSV/FC Eindhoven 2–1 in the final of the KNVB Women's Cup. Other sports Baseball Ajax HVA (1922–1972) was the baseball team of AFC Ajax founded in 1922, and competed as founding members of the Honkbal Hoofdklasse, the top flight of professional baseball in the Netherlands. Ajax won the national baseball title a total of four times (1924, 1928, 1942, 1948) before the club opted to no longer field a baseball team, and to focus solely on football in 1972. Ajax spent a total of 50 years at the top flight of Baseball in the Netherlands from 1922 to 1972. The dissolution of Ajax baseball club resulted in the players finding a new sponsor in a mustard manufacturing company called Luycks, while merging with the Diemen Giants to become the Luycks Giants, thus replacing both former clubs. eSports In 2016, Ajax launched an eSports team, with Koen Weijland as the club's first signing, making their debut on the Global stage of professional gaming. They have since signed the likes of Dani Hagebeuk, Lev Vinken, Joey Calabro and Bob van Uden, the latter spent his first season on loan to the eSports team of Japanese club Sagan Tosu. Affiliated clubs The following clubs are currently affiliated with AFC Ajax: Almere City (2005–present) Barcelona (2007–present) Cruzeiro (2007–present) Beijing Guoan (2007–present) Palmeiras (2010–present) AS Trenčín (2012–present) Guangzhou R&F (2017–present) Sagan Tosu (2018–present) Sharjah FC (2020–present) Sydney FC (2018–present) Sparta Rotterdam (2019–present) Various HETT-clubs (See main article) The following clubs were affiliated with AFC Ajax in the past: Germinal Beerschot (1999–2003) Ashanti Goldfields (1999–2003) Ajax Orlando Prospects (2003–2007) HFC Haarlem (2006–2010) Volendam (2007–2010) Ajax Cape Town (1999–2020) Rivalries As one of the traditional big three clubs in the Netherlands, Ajax have amassed a number of intense rivalries over the years. Listed below are the most significant of the rivalries involving Ajax. Rivalry with Feyenoord Feyenoord from Rotterdam are

departed to become manager of Barcelona and was replaced by the Romanian Ștefan Kovács. In Kovács' first season, Ajax completed a treble of the European Cup, the Eredivisie and a third consecutive KNVB Cup. The following season, the team beat Argentine club Independiente to win the 1972 Intercontinental Cup and retained their Eredivisie and European Cup titles, becoming the first club to win three consecutive European Cups since Real Madrid in the 1950s. In 1973, Michels' Barcelona broke the world transfer record to bring Cruyff to Catalonia. Kovács also departed to become manager of the France national team, signalling the end of this period of international success. In 1976–77, Ajax won its first domestic championship in four seasons and recorded a double of the Eredivisie and KNVB Cup two years later. The early 1980s saw the return of Johan Cruyff to the club, as well as the emergence of young players Marco van Basten and Frank Rijkaard. The team won back-to-back Eredivisie titles in 1982 and 1983, with all three playing a significant role in the latter. After Cruyff's sale to rivals Feyenoord in 1983, Van Basten became Ajax's key player, top scoring in the Eredivisie for four seasons between 1983–84 and 1986–87. In 1985, Cruyff returned to Ajax as manager and the team ended his first season in charge with 120 goals from 34 matches. However, Ajax still finished as runner-up to PSV by eight points. The following season, Ajax again lost out on the Eredivisie title to PSV, but won the European Cup Winners' Cup, its first continental trophy in 14 years. After this, Cruyff left the club to become manager of Barcelona and Rijkaard and Van Basten were sold to Sporting CP and Milan respectively. Despite these losses, Ajax reached a second consecutive Cup Winners' Cup final in 1988, where they lost to Belgian club KV Mechelen. The 1988–89 season saw Dennis Bergkamp, a young forward who had first appeared under Cruyff in 1986, establish himself as a regular goalscorer for Ajax. Bergkamp helped Ajax to the 1989–90 Eredivisie title and was the top scorer in the division in 1990–91, 1991–92 and 1992–93. Under the management of Louis van Gaal, Ajax won the UEFA Cup in 1992 to become the second club, after Juventus, to have won all three major European club competitions. After the sale of Bergkamp to Internazionale in 1993, Van Gaal re-signed the experienced Frank Rijkaard to complement his young Ajax team featuring academy graduates Frank and Ronald de Boer, Edwin van der Sar, Clarence Seedorf, Edgar Davids, Michael Reiziger and Winston Bogarde, as well as mercurial foreign talents Finidi George, Nwankwo Kanu and Jari Litmanen, and veteran captain Danny Blind. The team regained the Dutch championship in 1993–94, and won it again in 1994–95 and 1995–96 to become the first Ajax side to win three back-to-back championships since 1968. The height of Van Gaal's success came in 1994–95, where Ajax became the first, and to date only, team to complete an entire Eredivisie season unbeaten. The team also won its first European Cup since its glorious 1970s era, defeating Milan in the 1995 UEFA Champions League final 1–0, with the winning goal scored by 18-year-old Patrick Kluivert. Ajax again reached the final one year later, but were defeated on penalties by Juventus. Ajax's return as a European force was short-lived, as Van Gaal and several members of the squad soon departed to some of the continent's biggest clubs. The 2000s was a lean decade for the club, with only two Eredivisie championships won. However, Ajax's academy continued to produce star players such as Wesley Sneijder and Rafael van der Vaart. In 2010, Frank de Boer was appointed manager of Ajax and led the club to its first league title in seven years, and record 30th title overall, in the 2010–11 season. This was followed by back-to-back wins in 2011–12 and 2012–13 to match his three consecutive titles as a player in the 1990s. In 2013–14, Ajax were again Eredivisie champions, winning four consecutive league titles for the first time in club history. After finishing as runner-up to PSV in both 2014–15 and 2015–16, De Boer resigned as Ajax head coach in May 2016. Peter Bosz took over the club and led them to the 2017 UEFA Europa League final, their first European final in 21 years. They lost to Manchester United with a lineup that was the youngest ever in a European final, averaging an age of 22 years and 282 days. For the third consecutive season, they finished runner-up in the Eredivisie, this time to Feyenoord. The 2018–19 season for Ajax involved a remarkable run in the UEFA Champions League. Due to their runner-up finish in the 2017–18 Eredivisie, Ajax entered the tournament in the second qualifying round. After successive victories against Sturm Graz, Standard Liège and Dynamo Kyiv, they qualified for the group stage. Ajax was drawn in a group with German champions Bayern Munich, Portuguese side Benfica and Greek champions AEK Athens. Ajax finished runner-up in this group, qualifying for the knockout stages, where they were drawn against three-time defending champions Real Madrid. After losing 1–2 in the first leg, they defeated Real Madrid 4–1 in the away match, stunning the defending champions in their own stadium, the Santiago Bernabéu, with an aggregate score of 5–3. Dušan Tadić was awarded a perfect score of 10 by L'Équipe following the match. Thus, Ajax progressed to quarter-finals and were drawn with Italian champions Juventus. In the first leg in the Johan Cruyff Arena, they drew 1–1. In the second leg at the Juventus Stadium, Ajax came from behind to win 2–1 and 3–2 on aggregate. Matthijs de Ligt scored the winning goal for Ajax to help the team advance to its first Champions League semi-final since 1997. There, they would face English side Tottenham Hotspur. In the first leg of the semi-final, Ajax beat Tottenham 1–0 away from home. In the second leg, Ajax scored twice in the first half to generate a 3–0 lead on aggregate. However, in the second half, Lucas Moura scored three times, including in the 6th minute of added time, resulting in Ajax losing via the away goals rule. Ajax were in first place on goal difference when the 2019–20 Eredivisie was declared void, preventing them being Dutch champions for the 35th time, but still qualified for the 2020–21 UEFA Champions League. UEFA ranking Academies (Youth/Coaching) The club is also particularly famous for its renowned youth programme that has produced many Dutch talents over the years – Johan Cruyff, Edwin van der Sar, Gerald Vanenburg, Frank Rijkaard, Dennis Bergkamp, Rafael van der Vaart, Patrick Kluivert, Marco van Basten, Wesley Sneijder, Maarten Stekelenburg, Nigel de Jong, Frenkie de Jong, and Matthijs de Ligt have come through the ranks and are just some of the talents who have played for Ajax. Ajax also regularly supplies the Dutch national youth teams with local talent. Due to mutual agreements with foreign clubs, the youth academy has also signed foreign players as teenagers before making first team debuts, such as Belgian defensive trio Jan Vertonghen, Toby Alderweireld and Thomas Vermaelen along with winger Tom De Mul, all of whom are full internationals, as well as Dutch international Vurnon Anita and Javier Martina, representing Curaçao. Ajax has also expanded its talent searching programme to South Africa with Ajax Cape Town. Ajax Cape Town was set up with the help of Rob Moore. Ajax has also had a satellite club in the United States under the name Ajax America, until it filed for bankruptcy. There are some youth players from Ajax Cape Town that have been drafted into the Eredivisie squad, such as South African internationals Steven Pienaar, Thulani Serero and Cameroonian international Eyong Enoh. In 1995, the year Ajax won the UEFA Champions League, the Netherlands national team was almost entirely composed of Ajax players, with Edwin van der Sar in goal; players such as Michael Reiziger, Frank de Boer and Danny Blind in defence; Ronald de Boer, Edgar Davids and Clarence Seedorf in midfield; and Patrick Kluivert and Marc Overmars in attack. In 2011, Ajax opened its first youth academies outside the Netherlands when the club partnered up with George Kazianis and All Star Consultancy in Greece to open the Ajax Hellas Youth Academy. The offices are based in Nea Smyrni, Attica, with the main training facility located on the island of Corfu, hosting a total of 15 football youth academies throughout Greece and Cyprus. Eddie van Schaik heads the organization as coach and consultant, introducing the Ajax football philosophy at the various Greek football training camps. In 2016, Ajax launched the ACA (Ajax Coaching Academy) with the intention of sharing knowledge, setting up a variety of camps and clinics for both players and coaches. Stadiums Ajax's first stadium was built in 1911 out of wood and was called Het Houten Stadion ("The Wooden Stadium"). Ajax later played in the Olympic Stadium built for the 1928 Summer Olympics hosted in Amsterdam. This stadium, designed by Jan Wils, is known as the Olympic Stadium. In 1934, Ajax moved to De Meer Stadion in east Amsterdam, designed by architect and Ajax-member Daan Roodenburgh, who had also designed the club's first stadium. It could accommodate 29,500 spectators and Ajax continued to play there until 1996. For big European and national fixtures the club would often play at the Olympic Stadium, which could accommodate about twice the number of spectators. In 1996, Ajax moved to a new home ground in the southeast of the city known as the Amsterdam Arena, since 2018 known as the Johan Cruyff Arena. This stadium was built by the Amsterdam city authority at a cost of $134 million. The stadium is capable of holding approximately 54,990 spectators. The average attendance in 2006–07 was 48,610, rising in the next season to 49,128. The Arena has a retractable roof and set a trend for other modern stadiums built in Europe in the following years. In the Netherlands, the Arena has earned a reputation for a terrible grass pitch caused by the removable roof that, even when open, takes away too much sunlight and fresh air. During the 2008–09 season, ground staff introduced an artificial lighting system that has finally reduced this problem considerably. The much-loved De Meer Stadion was torn down and the land was sold to the city council. A residential neighbourhood now occupies the area. The only thing left of the old stadium are the letters "AJAX", which nowadays is in place on the façade of the youth training grounds De Toekomst, near the Johan Cruyff Arena. Crest and colours Crest In 1900, when the club was founded, the emblem of Ajax was just a picture of an Ajax player. The crest was slightly altered following the club's promotion to the top division in 1911 to match the club's new outfits. In 1928, the club logo was introduced with the head of the Greek hero Ajax. The logo was once again changed in 1990 into an abstract version of the previous one. The new logo still sports the portrait of Ajax, but drawn with just 11 lines, symbolizing the 11 players of a football team. Colours Ajax originally played in an all-black uniform with a red sash tied around the players' waists, but that uniform was soon replaced by a red/white striped shirt and black shorts. Red, black and white are the three colours of the flag of Amsterdam. When under manager Jack Kirwan, however, the club earned promotion to the top flight of Dutch football for the first time in 1911 (then the Eerste Klasse or 'First Class', later named the Eredivisie), Ajax were forced to change their colours because Sparta Rotterdam already had exactly the same outfit. Special kits for away fixtures did not exist at the time and according to football association regulations the newcomers had to change their colours if two teams in the same league had identical uniforms. Ajax opted for white shorts and white shirt with a broad, vertical red stripe over chest and back, which still is Ajax's outfit. Financial AFC Ajax N.V. AFC Ajax are the only Dutch club with an Initial public offering (IPO). The club is registered as a Naamloze vennootschap (N.V.) listed on the stock exchange Euronext Amsterdam, since 17 May 1998. With a launch price of ƒ25,- (Guilders) the club managed to a bring their total revenue up to €54 million (converted) in their first year on the market. After short-lived success, however, the rate dropped, at one point as low as €3.50. Criticism was brought forth that the legal grid for a naamloze vennootschap would not be suitable for a Football club, and that the sports related ambitions would suffer from the new commercial interests of the now listed Ajax. Shares of the company in the year 2008 were valued at approximately €5.90 per share. In 2008, a Commission under guidance of honorary member Uri Coronel concluded that the IPO was of no value to the club, and that measures should be taken to exit the stock exchange by purchasing back all public shares. Ajax remain on the stock exchange. Sponsorship Ajax's shirts have been sponsored by TDK from 1982 to 1991, and by ABN AMRO from 1991 to 2008. AEGON then replaced ABN AMRO as the new head sponsor for a period of seven years. On 1 April 2007, Ajax wore a different sponsor for the match against Heracles Almelo, Florius. Florius is a banking programme launched by ABN AMRO who wanted it

Eddington at the Royal Society's (6 November) 1919 meeting where he had defended Einstein's relativity with his Brazil-Príncipe solar eclipse calculations with some degree of scepticism, and ruefully charged Arthur as one who claimed to be one of three men who actually understood the theory (Silberstein, of course, was including himself and Einstein as the other). When Eddington refrained from replying, he insisted Arthur not be "so shy", whereupon Eddington replied, "Oh, no! I was wondering who the third one might be!" Cosmology Eddington was also heavily involved with the development of the first generation of general relativistic cosmological models. He had been investigating the instability of the Einstein universe when he learned of both Lemaître's 1927 paper postulating an expanding or contracting universe and Hubble's work on the recession of the spiral nebulae. He felt the cosmological constant must have played the crucial role in the universe's evolution from an Einsteinian steady state to its current expanding state, and most of his cosmological investigations focused on the constant's significance and characteristics. In The Mathematical Theory of Relativity, Eddington interpreted the cosmological constant to mean that the universe is "self-gauging". Fundamental theory and the Eddington number During the 1920s until his death, Eddington increasingly concentrated on what he called "fundamental theory" which was intended to be a unification of quantum theory, relativity, cosmology, and gravitation. At first he progressed along "traditional" lines, but turned increasingly to an almost numerological analysis of the dimensionless ratios of fundamental constants. His basic approach was to combine several fundamental constants in order to produce a dimensionless number. In many cases these would result in numbers close to 1040, its square, or its square root. He was convinced that the mass of the proton and the charge of the electron were a "natural and complete specification for constructing a Universe" and that their values were not accidental. One of the discoverers of quantum mechanics, Paul Dirac, also pursued this line of investigation, which has become known as the Dirac large numbers hypothesis. A somewhat damaging statement in his defence of these concepts involved the fine-structure constant, α. At the time it was measured to be very close to 1/136, and he argued that the value should in fact be exactly 1/136 for epistemological reasons. Later measurements placed the value much closer to 1/137, at which point he switched his line of reasoning to argue that one more should be added to the degrees of freedom, so that the value should in fact be exactly 1/137, the Eddington number. Wags at the time started calling him "Arthur Adding-one". This change of stance detracted from Eddington's credibility in the physics community. The current measured value is estimated at 1/137.035 999 074(44). Eddington believed he had identified an algebraic basis for fundamental physics, which he termed "E-numbers" (representing a certain group – a Clifford algebra). These in effect incorporated spacetime into a higher-dimensional structure. While his theory has long been neglected by the general physics community, similar algebraic notions underlie many modern attempts at a grand unified theory. Moreover, Eddington's emphasis on the values of the fundamental constants, and specifically upon dimensionless numbers derived from them, is nowadays a central concern of physics. In particular, he predicted a number of hydrogen atoms in the Universe 136 × 2256 ≈ 1.57 1079, or equivalently the half of the total number of particles protons + electrons. He did not complete this line of research before his death in 1944; his book Fundamental Theory was published posthumously in 1948. Eddington number for cycling Eddington is credited with devising a measure of a cyclist's long-distance riding achievements. The Eddington number in the context of cycling is defined as the maximum number E such that the cyclist has cycled at least E miles on at least E days. For example, an Eddington number of 70 would imply that the cyclist has cycled at least 70 miles in a day on at least 70 occasions. Achieving a high Eddington number is difficult since moving from, say, 70 to 75 will (probably) require more than five new long distance rides, since any rides shorter than 75 miles will no longer be included in the reckoning. Eddington's own life-time E-number was 84. The Eddington number for cycling involves units of both distance and time. The significance of E is tied to its units. For example, in cycling an E of 62 with distance measured in miles means a cyclist has covered 62 miles at least 62 times. The distance 62 miles is equivalent to 100 kilometers. However, an E of 62 when distance is measured in miles may not be equivalent to an E of 100 when distance is measured in kilometres. A cyclist with an E of 100 measured in kilometres would have achieved 100 or more rides of at least 100 kilometers. While the distances 100 kilometers and 62 miles are equivalent, an E of 100 kilometers would require 38 more rides of that length than an E of 62 miles. The Eddington number for cycling is analogous to the h-index that quantifies both the actual scientific productivity and the apparent scientific impact of a scientist. Philosophy Idealism Eddington wrote in his book The Nature of the Physical World that "The stuff of the world is mind-stuff." The idealist conclusion was not integral to his epistemology but was based on two main arguments. The first derives directly from current physical theory. Briefly, mechanical theories of the ether and of the behaviour of fundamental particles have been discarded in both relativity and quantum physics. From this, Eddington inferred that a materialistic metaphysics was outmoded and that, in consequence, since the disjunction of materialism or idealism are assumed to be exhaustive, an idealistic metaphysics is required. The second, and more interesting argument, was based on Eddington's epistemology, and may be regarded as consisting of two parts. First, all we know of the objective world is its structure, and the structure of the objective world is precisely mirrored in our own consciousness. We therefore have no reason to doubt that the objective world too is "mind-stuff". Dualistic metaphysics, then, cannot be evidentially supported. But, second, not only can we not know that the objective world is nonmentalistic, we also cannot intelligibly suppose that it could be material. To conceive of a dualism entails attributing material properties to the objective world. However, this presupposes that we could observe that the objective world has material properties. But this is absurd, for whatever is observed must ultimately be the content of our own consciousness, and consequently, nonmaterial. Ian Barbour, in his book Issues in Science and Religion (1966), p. 133, cites Eddington's The Nature of the Physical World (1928) for a text that argues the Heisenberg Uncertainty Principles provides a scientific basis for "the defense of the idea of human freedom" and his Science and the Unseen World (1929) for support of philosophical idealism "the thesis that reality is basically mental". Charles De Koninck points out that Eddington believed in objective reality existing apart from our minds, but was using the phrase "mind-stuff" to highlight the inherent intelligibility of the world: that our minds and the physical world are made of the same "stuff" and that our minds are the inescapable connection to the world. As De Koninck quotes Eddington, Indeterminism Against Albert Einstein and others who advocated determinism, indeterminism—championed by Eddington—says that a physical object has an ontologically undetermined component that is not due to the epistemological limitations of physicists' understanding. The uncertainty principle in quantum mechanics, then, would not necessarily be due to hidden variables but to an indeterminism in nature itself. Popular and philosophical writings Eddington wrote a parody of The Rubaiyat of Omar Khayyam, recounting his 1919 solar eclipse experiment. It contained the following quatrain: During the 1920s and 30s, Eddington gave numerous lectures, interviews, and radio broadcasts on relativity, in addition to his textbook The Mathematical Theory of Relativity, and later, quantum mechanics. Many of these were gathered into books, including The Nature of the Physical World and New Pathways in Science. His use of literary allusions and humour helped make these difficult subjects more accessible. Eddington's books and lectures were immensely popular with the public, not only because of his clear exposition, but also for his willingness to discuss the philosophical and religious implications of the new physics. He argued for a deeply rooted philosophical harmony between scientific investigation and religious mysticism, and also that the positivist nature of relativity and quantum physics provided new room for personal religious experience and free will. Unlike many other spiritual scientists, he rejected the idea that science could provide proof of religious propositions. He is sometimes misunderstood as having promoted the infinite monkey theorem in his 1928 book The Nature of the Physical World, with the phrase "If an army of monkeys were strumming on typewriters, they might write all the books in the British Museum". It is clear from the context that Eddington is not suggesting that the probability of this happening is worthy of serious consideration. On the contrary, it was a rhetorical illustration of the fact that below certain levels of probability, the term improbable is functionally equivalent to impossible. His popular writings made him a household name in Great Britain between the world wars. Death Eddington died of cancer in the Evelyn Nursing Home, Cambridge, on 22 November 1944. He was unmarried. His body was cremated at Cambridge Crematorium (Cambridgeshire) on 27 November 1944; the cremated remains were buried in the grave of his mother in the Ascension Parish Burial Ground in Cambridge. Cambridge University's North West Cambridge Development has been named "Eddington" in his honour. The actor Paul Eddington was a relative, mentioning in his autobiography (in light of his own weakness in mathematics) "what I then felt to be the misfortune" of being related to "one of the foremost physicists in the world". Obituaries Obituary 1 by Henry Norris Russell, Astrophysical Journal 101 (1943–46) 133 Obituary 2 by A. Vibert Douglas, Journal of the Royal Astronomical Society of Canada, 39 (1943–46) 1 Obituary 3 by Harold Spencer Jones and E. T. Whittaker, Monthly Notices of the Royal Astronomical Society 105 (1943–46) 68 Obituary 4 by Herbert Dingle, The Observatory 66 (1943–46) 1 The Times, Thursday, 23 November 1944; pg. 7; Issue 49998; col D: Obituary (unsigned) – Image of cutting available at Honours Awards Smith's Prize (1907) Bruce Medal of Astronomical Society of the Pacific (1924) Henry Draper Medal of the National Academy of Sciences (1924) Gold Medal of the Royal Astronomical Society (1924) Foreign membership of the Royal Netherlands Academy of Arts and Sciences (1926) Prix Jules Janssen of the Société astronomique de France (French Astronomical Society) (1928) Royal Medal of the Royal Society (1928) Knighthood (1930) Order of Merit (1938) Hon. Freeman of Kendal, 1930 Named after him Lunar crater Eddington asteroid 2761 Eddington Royal Astronomical Society's Eddington Medal Eddington mission, now cancelled Eddington Tower, halls of residence at the University of Essex Eddington Astronomical Society, an amateur society based in his hometown of Kendal Eddington, a house (group of students, used for in-school sports matches) of Kirkbie Kendal School Eddington, new suburb of North West Cambridge, opened in 2017 Service Gave the Swarthmore Lecture in 1929 Chairman of the National Peace Council 1941–1943 President of the International Astronomical Union; of the Physical Society, 1930–32; of the Royal Astronomical Society, 1921–23 Romanes Lecturer, 1922 Gifford Lecturer, 1927 In popular culture Eddington is a central figure in the short story "The Mathematician's Nightmare: The Vision of Professor Squarepunt" by Bertrand Russell, a work featured in The Mathematical Magpie by Clifton Fadiman. He was portrayed by David Tennant in the television film Einstein and Eddington, a co-production of the BBC and HBO, broadcast in the United Kingdom on Saturday, 22 November 2008, on BBC2. His thoughts on humour and religious experience were quoted in the adventure game The Witness, a production of the Thelka, Inc., released on 26 January 2016. Time placed him on the cover on 16 April 1934. Publications 1914. Stellar Movements and the Structure of the Universe. London: Macmillan. 1918. Report on the relativity theory of gravitation. London, Fleetway Press, Ltd. 1920. Space, Time and Gravitation: An Outline of the General Relativity Theory. Cambridge University Press. 1923, 1952. The Mathematical Theory of Relativity. Cambridge University Press. 1925. The Domain of Physical Science. 2005 reprint: 1926. Stars and Atoms. Oxford: British Association. 1926. The Internal Constitution of Stars. Cambridge University Press. 1928. The Nature of the Physical World. MacMillan. 1935 replica edition: , University of Michigan 1981 edition: (1926–27 Gifford lectures) 1929. Science and the Unseen World. US Macmillan, UK Allen & Unwin. 1980 Reprint Arden Library . 2004 US reprint – Whitefish, Montana : Kessinger Publications: . 2007 UK reprint London, Allen & Unwin (Swarthmore Lecture), with a new foreword by George Ellis. 1930. Why I Believe in God: Science and Religion, as a Scientist Sees It. Arrow/scrollable preview.

He left Cambridge for Greenwich the following month. He was put to work on a detailed analysis of the parallax of 433 Eros on photographic plates that had started in 1900. He developed a new statistical method based on the apparent drift of two background stars, winning him the Smith's Prize in 1907. The prize won him a fellowship of Trinity College, Cambridge. In December 1912 George Darwin, son of Charles Darwin, died suddenly and Eddington was promoted to his chair as the Plumian Professor of Astronomy and Experimental Philosophy in early 1913. Later that year, Robert Ball, holder of the theoretical Lowndean chair also died, and Eddington was named the director of the entire Cambridge Observatory the next year. In May 1914 he was elected a fellow of the Royal Society: he was awarded the Royal Medal in 1928 and delivered the Bakerian Lecture in 1926. Eddington also investigated the interior of stars through theory, and developed the first true understanding of stellar processes. He began this in 1916 with investigations of possible physical explanations for Cepheid variable stars. He began by extending Karl Schwarzschild's earlier work on radiation pressure in Emden polytropic models. These models treated a star as a sphere of gas held up against gravity by internal thermal pressure, and one of Eddington's chief additions was to show that radiation pressure was necessary to prevent collapse of the sphere. He developed his model despite knowingly lacking firm foundations for understanding opacity and energy generation in the stellar interior. However, his results allowed for calculation of temperature, density and pressure at all points inside a star (thermodynamic anisotropy), and Eddington argued that his theory was so useful for further astrophysical investigation that it should be retained despite not being based on completely accepted physics. James Jeans contributed the important suggestion that stellar matter would certainly be ionized, but that was the end of any collaboration between the pair, who became famous for their lively debates. Eddington defended his method by pointing to the utility of his results, particularly his important mass–luminosity relation. This had the unexpected result of showing that virtually all stars, including giants and dwarfs, behaved as ideal gases. In the process of developing his stellar models, he sought to overturn current thinking about the sources of stellar energy. Jeans and others defended the Kelvin–Helmholtz mechanism, which was based on classical mechanics, while Eddington speculated broadly about the qualitative and quantitative consequences of possible proton–electron annihilation and nuclear fusion processes. Around 1920, he anticipated the discovery and mechanism of nuclear fusion processes in stars, in his paper "The Internal Constitution of the Stars". At that time, the source of stellar energy was a complete mystery; Eddington correctly speculated that the source was fusion of hydrogen into helium, liberating enormous energy according to Einstein's equation . This was a particularly remarkable development since at that time fusion and thermonuclear energy, and even the fact that stars are largely composed of hydrogen (see metallicity), had not yet been discovered. Eddington's paper, based on knowledge at the time, reasoned that: The leading theory of stellar energy, the contraction hypothesis, should cause stars' rotation to visibly speed up due to conservation of angular momentum. But observations of Cepheid variable stars showed this was not happening. The only other known plausible source of energy was conversion of matter to energy; Einstein had shown some years earlier that a small amount of matter was equivalent to a large amount of energy. Francis Aston had also recently shown that the mass of a helium atom was about 0.8% less than the mass of the four hydrogen atoms which would, combined, form a helium atom, suggesting that if such a combination could happen, it would release considerable energy as a byproduct. If a star contained just 5% of fusible hydrogen, it would suffice to explain how stars got their energy. (We now know that most "ordinary" stars contain far more than 5% hydrogen.) Further elements might also be fused, and other scientists had speculated that stars were the "crucible" in which light elements combined to create heavy elements, but without more accurate measurements of their atomic masses nothing more could be said at the time. All of these speculations were proven correct in the following decades. With these assumptions, he demonstrated that the interior temperature of stars must be millions of degrees. In 1924, he discovered the mass–luminosity relation for stars (see Lecchini in ). Despite some disagreement, Eddington's models were eventually accepted as a powerful tool for further investigation, particularly in issues of stellar evolution. The confirmation of his estimated stellar diameters by Michelson in 1920 proved crucial in convincing astronomers unused to Eddington's intuitive, exploratory style. Eddington's theory appeared in mature form in 1926 as The Internal Constitution of the Stars, which became an important text for training an entire generation of astrophysicists. Eddington's work in astrophysics in the late 1920s and the 1930s continued his work in stellar structure, and precipitated further clashes with Jeans and Edward Arthur Milne. An important topic was the extension of his models to take advantage of developments in quantum physics, including the use of degeneracy physics in describing dwarf stars. Dispute with Chandrasekhar on existence of black holes The topic of extension of his models precipitated his dispute with Subrahmanyan Chandrasekhar, who was then a student at Cambridge. Chandrasekhar's work presaged the discovery of black holes, which at the time seemed so absurdly non-physical that Eddington refused to believe that Chandrasekhar's purely mathematical derivation had consequences for the real world. Eddington was wrong and his motivation is controversial. Chandrasekhar's narrative of this incident, in which his work is harshly rejected, portrays Eddington as rather cruel and dogmatic. It is not clear if his actions were anything to do with Chandra's race as his treatment of many other notable scientists such as E.A Milne and James Jeans was no less scathing. Chandra benefited from his friendship with Eddington. It was Eddington and Milne who put up Chandra's name for the fellowship for the Royal Society which Chandra obtained. An FRS meant he was at the Cambridge high-table with all the luminaries and a very comfortable endowment for research. Eddington's criticism seems to have been based partly on a suspicion that a purely mathematical derivation from relativity theory was not enough to explain the seemingly daunting physical paradoxes that were inherent to degenerate stars, but to have "raised irrelevant objections" in addition, as Thanu Padmanabhan puts it. Relativity During World War I, Eddington was secretary of the Royal Astronomical Society, which meant he was the first to receive a series of letters and papers from Willem de Sitter regarding Einstein's theory of general relativity. Eddington was fortunate in being not only one of the few astronomers with the mathematical skills to understand general relativity, but owing to his internationalist and pacifist views inspired by his Quaker religious beliefs, one of the few at the time who was still interested in pursuing a theory developed by a German physicist. He quickly became the chief supporter and expositor of relativity in Britain. He and Astronomer Royal Frank Watson Dyson organized two expeditions to observe a solar eclipse in 1919 to make the first empirical test of Einstein's theory: the measurement of the deflection of light by the sun's gravitational field. In fact, Dyson's argument for the indispensability of Eddington's expertise in this test was what prevented Eddington from eventually having to enter military service. When conscription was introduced in Britain on 2 March 1916, Eddington intended to apply for an exemption as a conscientious objector. Cambridge University authorities instead requested and were granted an exemption on the ground of Eddington's work being of national interest. In 1918, this was appealed against by the Ministry of National Service. Before the appeal tribunal in June, Eddington claimed conscientious objector status, which was not recognized and would have ended his exemption in August 1918. A further two hearings took place in June and July, respectively. Eddington's personal statement at the June hearing about his objection to war based on religious grounds is on record. The Astronomer Royal, Sir Frank Dyson, supported Eddington at the July hearing with a written statement, emphasising Eddington's essential role in the solar eclipse expedition to Príncipe in May 1919. Eddington made clear his willingness to serve in the Friends' Ambulance Unit, under the jurisdiction of the British Red Cross, or as a harvest labourer. However, the tribunal's decision to grant a further twelve months' exemption from military service was on condition of Eddington continuing his astronomy work, in particular in preparation for the Príncipe expedition. The war ended before the end of his exemption. After the war, Eddington travelled to the island of Príncipe off the west coast of Africa to watch the solar eclipse of 29 May 1919. During the eclipse, he took pictures of the stars (several stars in the Hyades cluster include Kappa Tauri of the constellation Taurus) in the region around the Sun. According to the theory of general relativity, stars with light rays that passed near the Sun would appear to have been slightly shifted because their light had been curved by its gravitational field. This effect is noticeable only during eclipses, since otherwise the Sun's brightness obscures the affected stars. Eddington showed that Newtonian gravitation could be interpreted to predict half the shift predicted by Einstein. Eddington's observations published the next year allegedly confirmed Einstein's theory, and were hailed at the time as evidence of general relativity over the Newtonian model. The news was reported in newspapers all over the world as a major story. Afterward, Eddington embarked on a campaign to popularize relativity and the expedition as landmarks both in scientific development and international scientific relations. It has been claimed that Eddington's observations were of poor quality, and he had unjustly discounted simultaneous observations at Sobral, Brazil, which appeared closer to the Newtonian model, but a 1979 re-analysis with modern measuring equipment and contemporary software validated Eddington's results and conclusions. The quality of the 1919 results was indeed poor compared to later observations, but was sufficient to persuade contemporary astronomers. The rejection of the results from the Brazil expedition was due to a defect in the telescopes used which, again, was completely accepted and well understood by contemporary astronomers. Throughout this period, Eddington lectured on relativity, and was particularly well known for his ability to explain the concepts in lay terms as well as scientific. He collected many of these into the Mathematical Theory of Relativity in 1923, which Albert Einstein suggested was "the finest presentation of the subject in any language." He was an early advocate of Einstein's general relativity, and an interesting anecdote well illustrates his humour and personal intellectual investment: Ludwik Silberstein, a physicist who thought of himself as an expert on relativity, approached Eddington at the Royal Society's (6 November) 1919 meeting where he had defended Einstein's relativity with his Brazil-Príncipe solar eclipse calculations with some degree of scepticism, and ruefully charged Arthur as one who claimed to be one of three men who actually understood the theory (Silberstein, of course, was including himself and Einstein as the other). When Eddington refrained from replying, he insisted Arthur not be "so shy", whereupon Eddington replied, "Oh, no! I was wondering who the third one might be!" Cosmology Eddington was also heavily involved with the development of the first generation of general relativistic cosmological models. He

Written by Wozniak, the interpreter enabled users to write software applications without needing to purchase additional development utilities. Written with game programmers and hobbyists in mind, the language only supported the encoding of numbers in 16-bit integer format. Since it only supported integers between -32768 and +32767 (signed 16-bit integer), it was less suitable to business software, and Apple soon received complaints from customers. Because Steve Wozniak was busy developing the Disk II hardware, he did not have time to modify Integer BASIC for floating point support. Apple instead licensed Microsoft's 6502 BASIC to create Applesoft BASIC. Disk users normally purchased a so-called Language Card, which had Applesoft in ROM, and was sat below the Integer BASIC ROM in system memory. The user could switch between either BASIC by typing FP or INT in BASIC prompt. Apple also offered a different version of Applesoft for cassette users, which occupied low memory, and was started by using the LOAD command in Integer BASIC. As shipped, Apple II incorporated a machine code monitor with commands for displaying and altering the computer's RAM, either one byte at a time, or in blocks of 256 bytes at once. This enabled programmers to write and debug machine code programs without further development software. The computer powers on into the monitor ROM, displaying a * prompt. From there, Ctrl+B enters BASIC, or a machine language program can be loaded from cassette. Disk software can be booted with Ctrl+P followed by 6, referring to Slot 6 which normally contained the Disk II controller. A 6502 assembler was soon offered on disk, and later the UCSD compiler and operating system for the Pascal language were made available. The Pascal system requires a 16 KiB RAM card to be installed in the language card position (expansion slot 0) in addition to the full 48 KiB of motherboard memory. Manual The first 1,000 or so Apple IIs shipped in 1977 with a 68-page mimeographed "Apple II Mini Manual", hand-bound with brass paper fasteners. This was the basis for the Apple II Reference Manual, which became known as the Red Book for its red cover, published in January 1978. All existing customers who sent in their warranty cards, were sent free copies of the Red Book. The Apple II Reference Manual contained the complete schematic of the entire computer's circuitry, and a complete source listing of the "Monitor" ROM firmware that served as the machine's BIOS. Operating system 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 which was inefficiently slow and, worse, unreliable. In 1977 when Apple decided against the popular but clunky CP/M operating system for Wozniak's innovative disk controller design, it contracted Shepardson Microsystems for $13,000 to write an Apple DOS for the Apple II series. At Shepardson, Paul Laughton developed the crucial disk drive software in just 35 days, a remarkably short deadline by any standard. Apple's Disk II -inch floppy disk drive was released in 1978. 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 released Applesoft BASIC in 1977, 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. Third-party devices and applications When the Apple II initially shipped in June 1977, no expansion cards were available for the slots. This meant that the user did not have any way of connecting a modem or a printer. One popular hack involved connecting a teletype machine to the cassette output. Wozniak's open-architecture design and Apple II's multiple expansion slots permitted a wide variety of third-party devices, including peripheral cards, such as serial controllers, display controllers, memory boards, hard disks, networking components, and real-time clocks. There were plug-in expansion cards—such as the Z-80 SoftCard—that permitted Apple II to use the Z80 processor and run programs for the CP/M operating system, including the dBase II database and the WordStar word processor. The Z80 card also allowed the connection to a modem, and thereby to any networks that a user might have access to. In the early days, such networks were scarce. But they expanded significantly with the development of bulletin board systems in later years. There was also a third-party 6809 card that allowed OS-9 Level One to be run. Third-party sound cards greatly improved audio capabilities, allowing simple music synthesis and text-to-speech functions. Apple II accelerator cards doubled or quadrupled the computer's speed. Early Apple IIs were often sold with a Sup'R'Mod, which allowed the composite video signal to be viewed in a television. The Soviet Union radio-electronics industry designed Apple II-compatible computer Agat. Roughly 12,000 Agat 7 and 9 models were produced and they were widely used in Soviet schools. Agat 9 computers could run "Apple II" compatibility and native modes. "Apple II" mode allowed to run wider variety of (presumably pirated) Apple II software, but at the expense of less RAM. Because of that Soviet developers preferred native mode over "Apple II" compatibility mode. Reception Jesse Adams Stein wrote, "As the first company to release a 'consumer appliance' micro-computer, Apple Computer offers us a clear view of this shift from a machine to an appliance." But the company also had "to negotiate the attitudes of its potential buyers, bearing in mind social anxieties about the uptake of new technologies in multiple contexts. The office, the home and the 'office-in-the-home' were implicated in these changing spheres of gender stereotypes and technological development." After seeing a crude, wire-wrapped prototype demonstrated by Wozniak and Steve Jobs in November 1976, Byte predicted in April 1977, that the Apple II "may be the first product to fully qualify as the 'appliance computer' ... a completed system which is purchased off the retail shelf, taken home, plugged in and used". The computer's color graphics capability especially impressed the magazine. The

the computer is switched to low-res graphics mode. The text mode and low-res graphics mode use the same memory region and the same circuitry is used for both. A single HGR page occupied 8 KiB of RAM; in practice this meant that the user had to have at least 12 KiB of total RAM to use HGR mode and 20 KiB to use two pages. Early Apple II games from the 1977–79 period often ran only in text or low-resolution mode in order to support users with small memory configurations; HGR not being near universally supported by games until 1980. Sound Rather than a dedicated sound-synthesis chip, the Apple II has a toggle circuit that can 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) are generated entirely by software that clicked the speaker at just the right times. Similar techniques are used for cassette storage: cassette output works the same as the speaker, and input is a simple zero-crossing detector that serves as a relatively crude (1-bit) audio digitizer. Routines in machine ROM encode and decode data in frequency-shift keying for the cassette. Programming languages Initially, the Apple II was shipped with Integer BASIC encoded in the motherboard ROM chips. Written by Wozniak, the interpreter enabled users to write software applications without needing to purchase additional development utilities. Written with game programmers and hobbyists in mind, the language only supported the encoding of numbers in 16-bit integer format. Since it only supported integers between -32768 and +32767 (signed 16-bit integer), it was less suitable to business software, and Apple soon received complaints from customers. Because Steve Wozniak was busy developing the Disk II hardware, he did not have time to modify Integer BASIC for floating point support. Apple instead licensed Microsoft's 6502 BASIC to create Applesoft BASIC. Disk users normally purchased a so-called Language Card, which had Applesoft in ROM, and was sat below the Integer BASIC ROM in system memory. The user could switch between either BASIC by typing FP or INT in BASIC prompt. Apple also offered a different version of Applesoft for cassette users, which occupied low memory, and was started by using the LOAD command in Integer BASIC. As shipped, Apple II incorporated a machine code monitor with commands for displaying and altering the computer's RAM, either one byte at a time, or in blocks of 256 bytes at once. This enabled programmers to write and debug machine code programs without further development software. The computer powers on into the monitor ROM, displaying a * prompt. From there, Ctrl+B enters BASIC, or a machine language program can be loaded from cassette. Disk software can be booted with Ctrl+P followed by 6, referring to Slot 6 which normally contained the Disk II controller. A 6502 assembler was soon offered on disk, and later the UCSD compiler and operating system for the Pascal language were made available. The Pascal system requires a 16 KiB RAM card to be installed in the language card position (expansion slot 0) in addition to the full 48 KiB of motherboard memory. Manual The first 1,000 or so Apple IIs shipped in 1977 with a 68-page mimeographed "Apple II Mini Manual", hand-bound with brass paper fasteners. This was the basis for the Apple II Reference Manual, which became known as the Red Book for its red cover, published in January 1978. All existing customers who sent in their warranty cards, were sent free copies of the Red Book. The Apple II Reference Manual contained the complete schematic of the entire computer's circuitry, and a complete source listing of the "Monitor" ROM firmware that served as the machine's BIOS. Operating system 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 which was inefficiently slow and, worse, unreliable. In 1977 when Apple decided against the popular but clunky CP/M operating system for Wozniak's innovative disk controller design, it contracted Shepardson Microsystems for $13,000 to write an Apple DOS for the Apple II series. At Shepardson, Paul Laughton developed the crucial disk drive software in just 35 days, a remarkably short deadline by any standard. Apple's Disk II -inch floppy disk drive was released in 1978. 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 released Applesoft BASIC in 1977, 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. Third-party devices and applications When the Apple II initially shipped in June 1977, no expansion cards were available for the slots. This meant that the user did not have any way of connecting a modem or a printer. One popular hack involved connecting a teletype machine to the cassette output. Wozniak's open-architecture design and Apple II's multiple expansion slots permitted a wide variety of third-party devices, including peripheral cards, such as serial controllers, display controllers, memory boards, hard disks, networking components, and real-time clocks. There were plug-in expansion cards—such as the Z-80 SoftCard—that permitted Apple II to use the Z80 processor and run programs for the CP/M operating system, including the dBase II database and the WordStar word processor. The Z80 card also allowed the connection to a modem, and thereby to any networks that a user might have access to. In the early days, such networks were scarce. But they expanded significantly with the development of bulletin board systems in later years. There was also a third-party 6809 card that allowed OS-9 Level One to be run. Third-party sound cards greatly improved audio capabilities, allowing simple music synthesis and text-to-speech functions. Apple II accelerator cards doubled or quadrupled the computer's speed. Early Apple IIs were often sold with a Sup'R'Mod, which allowed the composite video signal to be viewed in a television. The Soviet Union radio-electronics industry designed Apple II-compatible computer Agat. Roughly 12,000 Agat 7 and 9 models were produced and they were widely used in Soviet schools. Agat 9 computers could run "Apple II" compatibility and native modes. "Apple II" mode allowed to run wider variety of (presumably pirated) Apple II software, but at the expense of less RAM. Because of that Soviet developers preferred native mode over "Apple II" compatibility mode. Reception Jesse Adams Stein wrote, "As the first company to release a 'consumer appliance' micro-computer, Apple Computer offers us a clear view of this shift from a machine to an appliance." But the company also had "to negotiate the attitudes of its potential buyers, bearing in mind social anxieties about the uptake of new technologies in multiple contexts. The office, the home and the 'office-in-the-home' were implicated in these changing spheres of gender stereotypes and technological development." After seeing a crude, wire-wrapped prototype demonstrated by Wozniak and Steve Jobs in November 1976, Byte predicted in April 1977, that the Apple II "may be the first product to fully qualify as the 'appliance computer' ... a completed system which is purchased off the retail shelf, taken home, plugged in and used". The computer's color graphics capability especially impressed the magazine. The magazine published a favorable review of the

1965) 1909 – Stanislaw Ulam, Polish-American mathematician and academic (d. 1984) 1910 – Ted Hook, Australian public servant (d. 1990) 1911 – Nanette Bordeaux, Canadian-American actress (d. 1956) 1911 – Michael Woodruff, English-Scottish surgeon and academic (d. 2001) 1911 – Stanisława Walasiewicz, Polish-American runner (d. 1980) 1912 – Dorothy Eden, New Zealand-English author (d. 1982) 1912 – Grigoris Lambrakis, Greek physician and politician (d. 1963) 1913 – Per Borten, Norwegian politician, 18th Prime Minister of Norway (d. 2005) 1914 – Ray Getliffe, Canadian ice hockey player (d. 2008) 1914 – Sam Manekshaw, Indian field marshal (d. 2008) 1915 – Piet de Jong, Dutch politician and naval officer, Prime Minister of the Netherlands (d. 2016) 1915 – İhsan Doğramacı, Turkish physician and academic (d. 2010) 1916 – Herb Caen, American journalist and author (d. 1997) 1916 – Cliff Gladwin, English cricketer (d. 1988) 1916 – Louis Guglielmi, Catalan composer (d. 1991) 1918 – Mary Anderson, American actress (d. 2014) 1918 – Louis Applebaum, Canadian composer and conductor (d. 2000) 1919 – Ervin Drake, American songwriter and composer (d. 2015) 1919 – Clairette Oddera, French-Canadian actress and singer (d. 2008) 1920 – Stan Freeman, American composer and conductor (d. 2001) 1920 – Yoshibayama Junnosuke, Japanese sumo wrestler, the 43rd Yokozuna (d. 1977) 1921 – Robert Karvelas, American actor (d. 1991) 1921 – Jan Sterling, American actress (d. 2004) 1922 – Yevhen Bulanchyk, Ukrainian hurdler (d. 1996) 1922 – Doris Day, American singer and actress (d. 2019) 1923 – Daniel Hoffman, American poet and academic (d. 2013) 1924 – Marlon Brando, American actor and director (d. 2004) 1924 – Roza Shanina, Russian sergeant and sniper (d. 1945) 1925 – Tony Benn, English pilot and politician, Secretary of State for Industry (d. 2014) 1926 – Alex Grammas, American baseball player, manager, and coach (d. 2019) 1926 – Gus Grissom, American colonel, pilot, and astronaut (d. 1967) 1927 – Wesley A. Brown, American general and engineer (d. 2012) 1928 – Don Gibson, American singer-songwriter and guitarist (d. 2003) 1928 – Emmett Johns, Canadian priest, founded Dans la Rue (d. 2018) 1928 – Earl Lloyd, American basketball player and coach (d. 2015) 1928 – Jennifer Paterson, English chef and television personality (d. 1999) 1929 – Fazlur Rahman Khan, Bangladeshi engineer and architect, co-designed the Willis Tower and John Hancock Center (d. 1982) 1929 – Poul Schlüter, Danish lawyer and politician, 37th Prime Minister of Denmark (d. 2021) 1930 – Lawton Chiles, American soldier, lawyer, and politician, 41st Governor of Florida (d. 1998) 1930 – Helmut Kohl, German politician, Chancellor of Germany (d. 2017) 1930 – Mario Benjamín Menéndez, Argentinian general and politician (d. 2015) 1930 – Wally Moon, American baseball player and coach (d. 2018) 1931 – William Bast, American screenwriter and author (d. 2015) 1933 – Bob Dornan, American politician 1933 – Rod Funseth, American golfer (d. 1985) 1934 – Pamela Allen, New Zealand children's writer and illustrator 1934 – Jane Goodall, English primatologist and anthropologist 1934 – Jim Parker, American football player (d. 2005) 1936 – Jimmy McGriff, American organist and bandleader (d. 2008) 1936 – Harold Vick, American saxophonist and flute player (d. 1987) 1938 – Jeff Barry, American singer-songwriter, and producer 1938 – Phil Rodgers, American golfer (d. 2018) 1939 – François de Roubaix, French composer (d. 1975) 1939 – Hawk Taylor, American baseball player and coach (d. 2012) 1939 – Paul Craig Roberts, American economist and politician 1941 – Jan Berry, American singer-songwriter (d. 2004) 1941 – Philippé Wynne, American soul singer (d. 1984) 1942 – Marsha Mason, American actress 1942 – Wayne Newton, American singer 1942 – Billy Joe Royal, American singer-songwriter and guitarist (d. 2015) 1943 – Mario Lavista, Mexican composer 1943 – Jonathan Lynn, English actor, director, and screenwriter 1943 – Richard Manuel, Canadian singer-songwriter and pianist (d. 1986) 1943 – Hikaru Saeki, Japanese admiral, the first female star officer of the Japan Self-Defense Forces 1944 – Peter Colman, Australian biologist and academic 1944 – Tony Orlando, American singer 1945 – Doon Arbus, American author and journalist 1945 – Bernie Parent, Canadian ice hockey player and coach 1945 – Catherine Spaak, French actress 1946 – Nicholas Jones, English actor 1946 – Dee Murray, English bass player (d. 1992) 1946 – Hanna Suchocka, Polish politician, Prime Minister of Poland 1947 – Anders Eliasson, Swedish composer (d. 2013) 1948 – Arlette Cousture, Canadian author and screenwriter 1948 – Jaap de Hoop Scheffer, Dutch academic, politician, and diplomat, 11th Secretary General of NATO 1948 – Hans-Georg Schwarzenbeck, German footballer 1948 – Carlos Salinas de Gortari, Mexican economist and politician, 53rd President of Mexico 1949 – Lyle Alzado, American football player and actor (d. 1992) 1949 – A. C. Grayling, English philosopher and academic 1949 – Richard Thompson, English singer-songwriter and guitarist 1950 – Indrajit Coomaraswamy, Sri Lankan cricketer and economist 1951 – Brendan Barber, English trade union leader 1951 – Annette Dolphin, British academician and educator 1951 – Mitch Woods, American singer-songwriter and pianist 1952 – Mike Moore, American lawyer and politician 1953 – Sandra Boynton, American author and illustrator 1953 – Wakanohana Kanji II, Japanese sumo wrestler, the 56th Yokozuna 1953 – James Smith, American boxer 1954 – Elisabetta Brusa, Italian composer 1954 – K. Krishnasamy, Indian physician and politician 1956 – Kalle Kulbok, Estonian politician 1956 – Boris Miljković, Serbian director and producer 1956 – Miguel Bosé, Spanish musician and actor 1956 – Ray Combs, American game show host (d. 1996) 1958 – Alec Baldwin, American actor, comedian, producer and television host 1958 – Adam Gussow, American scholar, musician, and memoirist 1958 – Francesca Woodman, Jewish-American photographer (d. 1981) 1959 – David Hyde Pierce, American actor and activist 1960 – Arjen Anthony Lucassen, Dutch singer-songwriter, guitarist, and producer 1961 – Tim Crews, American baseball player (d. 1993) 1961 – Eddie Murphy, American actor and comedian 1962 – Dave Miley, American baseball player and manager 1962 – Mike Ness, American singer-songwriter and guitarist 1962 – Jaya Prada, Indian actress and politician 1963 – Les Davidson, Australian rugby league player 1963 – Ricky Nixon, Australian footballer and manager 1963 – Criss Oliva, American guitarist and songwriter (d. 1993) 1964 – Marco Ballotta, Italian footballer and manager 1964 – Nigel Farage, English politician 1964 – Claire Perry, English banker and politician 1964 – Bjarne Riis, Danish cyclist and manager 1964 – Andy Robinson, English rugby player and coach 1964 – Jay Weatherill, Australian politician, 45th Premier of South Australia 1965 – Nazia Hassan, Pakistani pop singer-songwriter, lawyer and social activist (d. 2000) 1966 – John de Vries, Australian race car driver 1967 – Cat Cora, American chef and author 1967 – Pervis Ellison, American basketball player 1967 – Brent Gilchrist, Canadian ice hockey player 1967 – Cristi Puiu, Romanian director and screenwriter 1967 – Mark Skaife, Australian race car driver and sportscaster 1968 – Sebastian Bach, Bahamian-Canadian singer-songwriter and actor 1968 – Charlotte Coleman, English actress (d. 2001) 1968 – Jamie Hewlett, English director and performer 1968 – Tomoaki Kanemoto, Japanese baseball player 1969 – Rodney Hampton, American football player 1969 – Peter Matera, Australian footballer and coach 1969 – Ben Mendelsohn, Australian actor 1969 – Lance Storm, Canadian wrestler and trainer 1971 – Vitālijs Astafjevs, Latvian footballer and manager 1971 – Emmanuel Collard, French race car driver 1971 – Picabo Street, American skier 1972 – Jennie Garth, American actress and director 1972 – Catherine McCormack, English actress 1972 – Sandrine Testud, French tennis player 1973 – Nilesh Kulkarni, Indian cricketer 1973 – Adam Scott, American actor 1974 – Marcus Brown, American basketball player 1974 – Drew Shirley, American guitarist and songwriter 1974 – Lee Williams, Welsh model and actor 1975 – Shawn Bates, American ice hockey player 1975 – Michael Olowokandi, Nigerian-American basketball player 1975 – Aries Spears, American comedian and actor 1975 – Yoshinobu Takahashi, Japanese baseball player 1975 – Koji Uehara, Japanese baseball player 1976 – Nicolas Escudé, French tennis player 1978 – Matthew Goode, English actor 1978 – Tommy Haas, German-American tennis player 1978 – John Smit, South African rugby player 1979 – Simon Black, Australian footballer and coach 1980 – Andrei Lodis, Belarusian footballer 1980 – Megan Rohrer, American pastor and transgender activist 1981 – Aaron Bertram, American trumpet player 1981 – DeShawn Stevenson, American basketball player 1982 – Jared Allen, American football player 1982 – Iain Fyfe, Australian footballer 1982 – Cobie Smulders, Canadian actress 1983 – Ben Foster, English footballer 1983 – Stephen Weiss, Canadian ice hockey player 1984 – Jonathan Blondel, Belgian footballer 1984 – Maxi López, Argentinian footballer 1985 – Jari-Matti Latvala, Finnish race car driver 1985 – Leona Lewis, English singer-songwriter and producer 1986 – Amanda Bynes, American actress 1986 – Stephanie Cox, American soccer player 1986 – Annalisa Cucinotta, Italian cyclist 1986 – Sergio Sánchez Ortega, Spanish footballer 1987 – Rachel Bloom, American actress, writer, and producer 1987 – Jay Bruce, American baseball player 1987 – Yileen Gordon, Australian rugby league player 1987 – Jason Kipnis, American baseball player 1987 – Martyn Rooney, English sprinter 1987 – Julie

La Plata and Buenos Aires, Argentina. 2016 – The Panama Papers, a leak of legal documents, reveals information on 214,488 offshore companies. 2017 – A bomb explodes in the St Petersburg metro system, killing 14 and injuring several more people. 2018 – YouTube headquarters shooting. Births Pre-1600 1016 – Xing Zong, Chinese emperor (d. 1055) 1151 – Igor Svyatoslavich, Russian prince (d. 1202) 1438 – John III of Egmont, Dutch nobleman (d. 1516) 1529 – Michael Neander, German mathematician and astronomer (d. 1581) 1540 – Maria de' Medici, Italian noblewoman, the eldest daughter of Cosimo I de' Medici, Grand Duke of Tuscany and Eleonora di Toledo. (d. 1557) 1593 – George Herbert, English poet (d. 1633) 1601–1900 1643 – Charles V, duke of Lorraine (d. 1690) 1682 – Valentin Rathgeber, German organist and composer (d. 1750) 1693 – George Edwards, English ornithologist and entomologist (d. 1773) 1715 – William Watson, English physician, physicist, and botanist (d. 1787) 1764 – John Abernethy, English surgeon and anatomist (d. 1831) 1769 – Christian Günther von Bernstorff, Danish-Prussian politician and diplomat (d. 1835) 1770 – Theodoros Kolokotronis, Greek general (d. 1843) 1778 – Pierre Bretonneau, French doctor who performed the first successful tracheotomy (d. 1862) 1781 – Swaminarayan, Indian religious leader (d. 1830) 1782 – Alexander Macomb, American general (d. 1841) 1783 – Washington Irving, American short story writer, essayist, biographer, historian (d. 1859) 1791 – Anne Lister, English diarist, mountaineer, and traveller (d.1840) 1798 – Charles Wilkes, American admiral, geographer, and explorer (d.1877) 1807 – Mary Carpenter, English educational and social reformer (d. 1877) 1814 – Lorenzo Snow, American religious leader, 5th President of The Church of Jesus Christ of Latter-day Saints (d. 1901) 1822 – Edward Everett Hale, American minister, historian, and author (d. 1909) 1823 – George Derby, American lieutenant and journalist (d. 1861) 1823 – William M. Tweed, American politician (d. 1878) 1826 – Cyrus K. Holliday, American businessman (d. 1900) 1837 – John Burroughs, American botanist and author (d. 1921) 1842 – Ulric Dahlgren, American colonel (d. 1864) 1848 – Arturo Prat, Chilean lawyer and captain (d. 1879) 1858 – Jacob Gaudaur, Canadian rower (d. 1937) 1860 – Frederik van Eeden, Dutch psychiatrist and author (d. 1932) 1864 – Emil Kellenberger, Swiss target shooter (d. 1943) 1875 – Mistinguett, French actress and singer (d. 1956) 1876 – Margaret Anglin, Canadian actress, director, and producer (d. 1958) 1876 – Tomáš Baťa, Czech businessman, founded Bata Shoes (d. 1932) 1880 – Otto Weininger, Jewish-Austrian philosopher and author (d. 1903) 1881 – Alcide De Gasperi, Italian journalist and politician, 30th Prime Minister of Italy (d. 1954) 1882 – Philippe Desranleau, Canadian archbishop (d. 1952) 1883 – Ikki Kita, Japanese philosopher and author (d. 1937) 1885 – Allan Dwan, Canadian-American director, producer, and screenwriter (d. 1981) 1885 – Bud Fisher, American cartoonist (d. 1954) 1885 – Marie-Victorin Kirouac, Canadian botanist and academic (d. 1944) 1885 – St John Philby, English colonial and explorer (d. 1960) 1886 – Dooley Wilson, American actor and singer (d. 1953) 1887 – Ōtori Tanigorō, Japanese sumo wrestler, the 24th Yokozuna (d. 1956) 1887 – Nishizō Tsukahara, Japanese admiral (d. 1966) 1888 – Thomas C. Kinkaid, American admiral (d. 1972) 1889 – Grigoraș Dinicu, Romanian violinist and composer (d. 1949) 1893 – Leslie Howard, English actor (d. 1943) 1895 – Mario Castelnuovo-Tedesco, Italian-American composer and educator (d. 1968) 1895 – Zez Confrey, American pianist and composer (d. 1971) 1897 – Joe Kirkwood Sr., Australian golfer (d. 1970) 1897 – Thrasyvoulos Tsakalotos, Greek general (d. 1989) 1898 – David Jack, English footballer and manager (d. 1958) 1898 – George Jessel, American actor, singer, and producer (d. 1981) 1898 – Henry Luce, American publisher, co-founded Time magazine (d. 1967) 1900 – Camille Chamoun, Lebanese lawyer and politician, 7th President of Lebanon (d. 1987) 1900 – Albert Walsh, Canadian lawyer and politician, 1st Lieutenant Governor of Newfoundland (d. 1958) 1901–present 1903 – Kamaladevi Chattopadhyay, Indian social reformer and freedom fighter (d. 1988) 1904 – Iron Eyes Cody, American actor and stuntman (d. 1999) 1904 – Sally Rand, American dancer (d. 1979) 1904 – Russel Wright, American furniture designer (d. 1976) 1905 – Robert Sink, American general (d. 1965) 1909 – Stanislaw Ulam, Polish-American mathematician and academic (d. 1984) 1910 – Ted Hook, Australian public servant (d. 1990) 1911 – Nanette Bordeaux, Canadian-American actress (d. 1956) 1911 – Michael Woodruff, English-Scottish surgeon and academic (d. 2001) 1911 – Stanisława Walasiewicz, Polish-American runner (d. 1980) 1912 – Dorothy Eden, New Zealand-English author (d. 1982) 1912 – Grigoris Lambrakis, Greek physician and politician (d. 1963) 1913 – Per Borten, Norwegian politician, 18th Prime Minister of Norway (d. 2005) 1914 – Ray Getliffe, Canadian ice hockey player (d. 2008) 1914 – Sam Manekshaw, Indian field marshal (d. 2008) 1915 – Piet de Jong, Dutch politician and naval officer, Prime Minister of the Netherlands (d. 2016) 1915 – İhsan Doğramacı, Turkish physician and academic (d. 2010) 1916 – Herb Caen, American journalist and author (d. 1997) 1916 – Cliff Gladwin, English cricketer (d. 1988) 1916 – Louis Guglielmi, Catalan composer (d. 1991) 1918 – Mary Anderson, American actress (d. 2014) 1918 – Louis Applebaum, Canadian composer and conductor (d. 2000) 1919 – Ervin Drake, American songwriter and composer (d. 2015) 1919 – Clairette Oddera, French-Canadian actress and singer (d. 2008) 1920 – Stan Freeman, American composer and conductor (d. 2001) 1920 – Yoshibayama Junnosuke, Japanese sumo wrestler, the 43rd Yokozuna (d. 1977) 1921 – Robert Karvelas, American actor (d. 1991) 1921 – Jan Sterling, American actress (d. 2004) 1922 – Yevhen Bulanchyk, Ukrainian hurdler (d. 1996) 1922 – Doris Day, American singer and actress (d. 2019) 1923 – Daniel Hoffman, American poet and academic (d. 2013) 1924 – Marlon Brando, American actor and director (d. 2004) 1924 – Roza Shanina, Russian sergeant and sniper (d. 1945) 1925 – Tony Benn, English pilot and politician, Secretary of State for Industry (d. 2014) 1926 – Alex Grammas, American baseball player, manager, and coach (d. 2019) 1926 – Gus Grissom, American colonel, pilot, and astronaut (d. 1967) 1927 – Wesley A. Brown, American general and engineer (d. 2012) 1928 – Don Gibson, American singer-songwriter and guitarist (d. 2003) 1928 – Emmett Johns, Canadian priest, founded Dans la Rue (d. 2018) 1928 – Earl Lloyd, American basketball player and coach (d. 2015) 1928 – Jennifer Paterson, English chef and television personality (d. 1999) 1929 – Fazlur Rahman Khan, Bangladeshi engineer and architect, co-designed the Willis Tower and John Hancock Center (d. 1982) 1929 – Poul Schlüter, Danish lawyer and politician, 37th Prime Minister of Denmark (d. 2021) 1930 – Lawton Chiles, American soldier, lawyer, and politician, 41st Governor of Florida (d. 1998) 1930 – Helmut Kohl, German politician, Chancellor of Germany (d. 2017) 1930 – Mario Benjamín Menéndez, Argentinian general and politician (d. 2015) 1930 – Wally Moon, American baseball player and coach (d. 2018) 1931 – William Bast, American screenwriter and author (d. 2015) 1933 – Bob Dornan, American politician 1933 – Rod Funseth, American golfer (d. 1985) 1934 – Pamela Allen, New Zealand children's writer and illustrator 1934 – Jane Goodall, English primatologist and anthropologist 1934 – Jim Parker, American football player (d. 2005) 1936 – Jimmy McGriff, American organist and bandleader (d. 2008) 1936 – Harold Vick, American saxophonist and flute player (d. 1987) 1938 – Jeff Barry, American singer-songwriter, and producer 1938 – Phil Rodgers, American golfer (d. 2018) 1939 – François de Roubaix, French composer (d. 1975) 1939 – Hawk Taylor, American baseball player and coach (d. 2012) 1939 – Paul Craig Roberts, American economist and politician 1941 – Jan Berry, American singer-songwriter (d. 2004) 1941 – Philippé Wynne, American soul singer (d. 1984) 1942 – Marsha Mason, American actress 1942 – Wayne Newton, American singer 1942 – Billy Joe Royal, American singer-songwriter and guitarist (d. 2015) 1943 – Mario Lavista, Mexican composer 1943 – Jonathan Lynn, English actor, director, and screenwriter 1943 – Richard Manuel, Canadian singer-songwriter and pianist (d. 1986) 1943 – Hikaru Saeki, Japanese admiral, the first female star officer of the Japan Self-Defense Forces 1944 – Peter Colman, Australian biologist and academic 1944 – Tony Orlando, American singer 1945 – Doon Arbus, American author and journalist 1945 – Bernie Parent, Canadian ice hockey player and coach 1945 – Catherine Spaak, French actress 1946 – Nicholas Jones, English actor 1946 – Dee Murray, English bass player (d. 1992) 1946 – Hanna Suchocka, Polish politician, Prime Minister of Poland 1947 – Anders Eliasson, Swedish composer (d. 2013) 1948 – Arlette Cousture, Canadian author and screenwriter 1948 – Jaap de Hoop Scheffer, Dutch academic, politician, and diplomat, 11th Secretary General of NATO 1948 – Hans-Georg Schwarzenbeck, German footballer 1948 – Carlos Salinas de Gortari, Mexican economist and politician, 53rd President of Mexico 1949 – Lyle Alzado, American football player and actor (d. 1992) 1949 – A. C. Grayling, English philosopher and academic 1949 – Richard Thompson, English singer-songwriter and guitarist 1950 – Indrajit Coomaraswamy, Sri Lankan cricketer and economist 1951 – Brendan Barber, English trade union leader 1951 – Annette Dolphin, British academician and educator 1951 – Mitch Woods, American singer-songwriter and pianist 1952 – Mike Moore, American lawyer and politician 1953 – Sandra Boynton, American author and illustrator 1953 – Wakanohana Kanji II, Japanese sumo wrestler, the 56th Yokozuna 1953 – James Smith, American boxer 1954 – Elisabetta Brusa, Italian composer 1954 – K. Krishnasamy, Indian physician and politician 1956 – Kalle Kulbok, Estonian politician 1956 – Boris Miljković, Serbian director and producer 1956 – Miguel Bosé, Spanish musician and actor 1956 – Ray Combs, American game show host (d. 1996) 1958 – Alec Baldwin, American actor, comedian, producer and television host 1958 – Adam Gussow, American scholar, musician, and memoirist 1958 – Francesca Woodman, Jewish-American photographer (d. 1981) 1959 – David Hyde Pierce, American actor and activist 1960 – Arjen Anthony Lucassen, Dutch singer-songwriter, guitarist, and producer 1961 – Tim Crews, American baseball player (d. 1993) 1961 – Eddie Murphy, American actor and comedian 1962 – Dave Miley, American baseball player and manager 1962 – Mike Ness, American singer-songwriter and guitarist 1962 – Jaya Prada, Indian actress and politician 1963 – Les Davidson, Australian rugby league player 1963 – Ricky Nixon, Australian footballer and manager 1963 – Criss Oliva, American guitarist and songwriter (d. 1993) 1964 – Marco Ballotta, Italian footballer and manager 1964 – Nigel Farage, English politician 1964 – Claire Perry, English banker and politician 1964 – Bjarne Riis, Danish cyclist and manager 1964 – Andy Robinson, English rugby player and coach 1964 – Jay Weatherill, Australian politician, 45th Premier of South Australia 1965 – Nazia Hassan, Pakistani pop singer-songwriter, lawyer and social activist (d. 2000) 1966 – John de Vries, Australian race car driver 1967 – Cat Cora, American chef and author 1967 – Pervis Ellison, American basketball player 1967 – Brent Gilchrist, Canadian ice hockey player 1967 – Cristi Puiu, Romanian director and screenwriter 1967 – Mark Skaife, Australian race car driver and sportscaster 1968 – Sebastian Bach, Bahamian-Canadian singer-songwriter and actor 1968 – Charlotte Coleman, English actress (d. 2001) 1968 – Jamie Hewlett, English director and performer 1968 – Tomoaki Kanemoto, Japanese baseball player 1969 – Rodney Hampton, American football player 1969 – Peter Matera, Australian footballer and coach 1969 – Ben Mendelsohn, Australian actor 1969 – Lance Storm, Canadian wrestler and trainer 1971 – Vitālijs Astafjevs, Latvian footballer and manager 1971 – Emmanuel Collard, French race car driver 1971 – Picabo Street, American skier 1972 – Jennie Garth, American actress

Korner encouraged many American blues artists, previously virtually unknown in Britain, to perform at the London Blues and Barrelhouse Club, which he established with Davies at the Round House pub in Soho. The 1960s In 1961, Korner and Davies formed Blues Incorporated, initially a loose-knit group of musicians with a shared love of electric blues and R&B music. The group included, at various times, Charlie Watts, Jack Bruce, Ginger Baker, Long John Baldry, Graham Bond, Danny Thompson and Dick Heckstall-Smith. It also attracted a wider crowd of mostly younger fans, some of whom occasionally performed with the group, including Mick Jagger, Keith Richards, Brian Jones, Geoff Bradford, Rod Stewart, John Mayall and Jimmy Page. Although Cyril Davies left the group in late 1962, Blues Incorporated continued to record, with Korner at the helm, until 1966. However, by that time its originally stellar line-up (and crowd of followers) had mostly left to start their own bands. While his one-time acolytes, the Rolling Stones and Cream, made the front pages of music magazines all over the world, Korner was relegated to the role of 'elder statesman'. In 1966, Korner formed the trio Free At Last with Hughie Flint and Binky McKenzie. Flint later recalled “I played with Alexis, right after leaving The Bluesbreakers, in a trio, which Alexis named Free At Last, a sort of mini and slightly restricted version of Blues Incorporated. Playing with Alexis was very loose. We would play anything from Percy Mayfield’s ‘River’s Invitation’ to Charles Mingus' ‘Better Get It In Your Soul’ – with lots of freaky guitar and bass solos. Alexis, like John Mayall had the most eclectic taste in music, very knowledgeable, and generous, and I am indebted to both of them for my wide approach to music”. Although Free At Last was short lived, Korner ensured its name lived on in part by christening another young group of aspiring musicians "Free". Korner was instrumental in the formation of the band in April 1968 and continued to mentor them until they secured a deal with Island Records. Although he himself was a blues purist, Korner criticised better-known British blues musicians during the blues boom of the late 1960s for their blind adherence to Chicago blues, as if the music came in no other form. He liked to surround himself with jazz musicians such as John McLaughlin and Binky McKenzie and often performed with a horn section drawn from a pool that included, among others, saxophone players Art Themen, Mel Collins, Dick Heckstall-Smith, Lol Coxhill, Dick Morrissey, John Surman and trombonist Mike Zwerin. Broadcasting In the 1960s, Korner began a media career, working initially as a show business interviewer and then on ITV's Five O'Clock Club, a children's TV show. Korner also wrote about blues for the music papers, and continued to maintain his own career as a blues artist, especially in Europe. On 17 October 1967, Korner interviewed The Jimi Hendrix Experience for the BBC radio show Top Gear. Some of these tracks, including audio of Korner himself, appear on the Hendrix double-CD BBC Sessions, including Korner playing slide guitar on "(I'm Your) Hoochie Coochie Man". While touring Scandinavia he formed the band New Church with guitarist and singer Peter Thorup. They subsequently were one of the support bands at the Rolling Stones Free Concert in Hyde Park, London, on 5 July 1969. Jimmy Page reportedly found out about a new singer, Robert Plant, who had been jamming with Korner, who wondered why Plant had not yet been discovered. Plant and Korner were recording an album with Plant on vocals until Page had asked him to join "the New Yardbirds", a.k.a. Led Zeppelin. Only two songs are in circulation from these recordings: "Steal Away" and "Operator". Korner gave one of his last radio interviews to BBC Midlands on the Record Collectors Show with Mike Adams and Chris Savory. 1970s In 1970, Korner and Thorup formed a big-band ensemble, CCS – short for "The Collective Consciousness Society" – which had several hit singles produced by Mickie Most, including a version of Led Zeppelin's "Whole Lotta Love", which was used as the theme for BBC's Top of the Pops between 1970 and 1981. Another instrumental called "Brother" was used as the theme to the BBC Radio 1 Top 20/40 when Tom Browne/Simon Bates presented the programme in the 1970s. It was also used in the 1990s on Radio Luxembourg for the Top 20 Singles chart. This was the period of Korner's greatest commercial success in the UK. In 1973, he provided a voice part for the Hot Chocolate single release Brother Louie. 1970s to 1984 In 1973, he and Peter Thorup formed another group, Snape, with Boz Burrell, Mel Collins, and Ian Wallace, who were previously together

UK. In 1973, he provided a voice part for the Hot Chocolate single release Brother Louie. 1970s to 1984 In 1973, he and Peter Thorup formed another group, Snape, with Boz Burrell, Mel Collins, and Ian Wallace, who were previously together in King Crimson. Korner also played on B.B. King's In London album, and cut his own, similar "supersession" album; Get Off My Cloud, with Keith Richards, Steve Marriott, Peter Frampton, Nicky Hopkins and members of Joe Cocker's Grease Band. In the mid-1970s, while touring Germany, Korner established an intensive working relationship with bassist Colin Hodgkinson who played for the support act Back Door. They would continue to collaborate right up until Korner's death. In the 1970s, Korner's main career was in broadcasting. In 1973, he presented a unique 6-part documentary on BBC Radio 1, The Rolling Stones Story, and in 1977 he established a Sunday-night blues and soul show on Radio 1, Alexis Korner's Blues and Soul Show, which ran until 1981. He also used his gravelly voice to great effect as an advertising voice-over artist. In 1978, for Korner's 50th birthday, an all-star concert was held featuring many of his above-mentioned friends, as well as Eric Clapton, Paul Jones, Chris Farlowe, Zoot Money and others, which was later released as The Party Album, and as a video. In 1981, Korner joined another "supergroup", Rocket 88, a project led by Ian Stewart based on boogie-woogie keyboard players, which featured a rhythm section comprising Jack Bruce and Charlie Watts, among others, as well as a horn section. They toured Europe and released an album on Atlantic Records. He played in Italy with Paul Jones and the Blues Society of Italian bluesman Guido Toffoletti. Family life and death In 1950, Korner married Roberta Melville (died 2021), daughter of art critic Robert Melville. He had a daughter, singer Sappho Gillett Korner (died 2006), and two sons, guitarist Nicholas 'Nico' Korner (died 1988) and sound engineer Damian Korner (died 2008). Korner died of lung cancer in London on 1 January 1984, at the age of 55. Album discography (selected UK and other releases) Blues from the Roundhouse 10" (1957) – Alexis Korner's Breakdown Group R&B from the Marquee (1962) – Alexis Korner's Blues Incorporated Alexis Korner and Friends (1963) – Blues Incorporated At the Cavern (1964) – Blues Incorporated Red Hot from Alex (1964) – Blues Incorporated Alexis Korner's Blues Incorporated (1965) – Blues Incorporated Sky High (1966) – Blues Incorporated I Wonder Who (1967) Alexis Korner's Blues Incorporated (re-issue of Sky High) – Blues Incorporated A New Generation of Blues (1968) Both Sides (1970) – New Church CCS 1st (1970) –

knocking out hard points such as fortified positions and buildings. They were not intended to be deployed as tank substitutes or dedicated tank destroyers. Nevertheless, as the conflict progressed, the increasing proliferation of tanks on the battlefield forced many assault gun units to engage armor in defense of the infantry, and led to armies becoming more dependent on multipurpose designs which combined the traditionally separate roles of an assault gun and a tank destroyer. German and Soviet assault guns introduced during World War II usually carried their main armament in a fully enclosed casemate rather than a gun turret. Although this limited the field of fire and traverse of the armament, it also had the advantage of a reduced silhouette and simplified the manufacturing process. The United States never developed a purpose-built assault gun during the war, although it did modify preexisting armored fighting vehicles for that role, including the M4 Sherman and M5 Stuart tanks and the M3 Half-track. The assault gun concept was largely abandoned during the postwar era in favor of tanks or multipurpose tank destroyers attached to infantry formations which were also capable of providing direct fire support as needed. In the United States and most Western countries, the assault gun ceased to be recognized as a unique niche, with individual examples being classified either as a self-propelled howitzer or a tank. The Soviet Union continued funding development of new assault guns as late as 1967, although few of its postwar designs were adopted in large numbers. In Soviet and other Eastern European armies, the traditional assault gun was primarily superseded by tank destroyers such as the SU-100 capable of supporting either infantry or armor. History World War II Assault guns were primarily used during World War II by the forces of Nazi Germany and the Soviet Union. Early in the war, the Germans began to create makeshift assault guns by mounting their infantry support weapons on the bed of a truck or on obsolete tanks with the turret removed. Later in the war, both the Germans and the Soviets introduced fully armoured purpose-built assault guns into their arsenals. Early on, the Soviets built the KV-2, a variant of the KV-1 heavy tank with a short-barreled 152 mm howitzer mounted in an oversized turret. This was not a success in battle, and was replaced with a very successful series of turretless assault guns: the SU-76, SU-122, and the heavy SU-152, which were followed by the ISU-122 and ISU-152 on the new IS heavy tank chassis. The primary German assault gun was the Sturmgeschütz III (StuG III). At about the same time (March 1942) as the howitzer-like KwK 37 gun was dropped from the Panzer IV's use, its Sturmkanone equivalent in the StuG III up to that time, was likewise replaced with a longer-barreled, high-velocity dual-purpose 75mm gun that had also been derived from the successful PaK 40 anti-tank towed artillery piece. The Germans also built a number of other fully armoured turretless assault guns, including the StuG IV, StuIG 33B, Brummbär and Sturmtiger. The latter two were very heavy vehicles, and were built only in small quantities. Battalions of assault guns, usually StuG IIIs, commonly replaced the intended panzer battalion in the German panzergrenadier divisions due to

StuG III, in 1940. Historically, the concept of assault guns was very similar to that of the infantry tank, as both were combat vehicles intended to accompany infantry formations into battle. However, during World War II assault guns were more mobile than tanks and could be utilized as both direct and indirect fire artillery. Although they could approximate the firepower of a tank, assault guns mostly fired high explosive shells at relatively low velocities, which were well suited for their role of knocking out hard points such as fortified positions and buildings. They were not intended to be deployed as tank substitutes or dedicated tank destroyers. Nevertheless, as the conflict progressed, the increasing proliferation of tanks on the battlefield forced many assault gun units to engage armor in defense of the infantry, and led to armies becoming more dependent on multipurpose designs which combined the traditionally separate roles of an assault gun and a tank destroyer. German and Soviet assault guns introduced during World War II usually carried their main armament in a fully enclosed casemate rather than a gun turret. Although this limited the field of fire and traverse of the armament, it also had the advantage of a reduced silhouette and simplified the manufacturing process. The United States never developed a purpose-built assault gun during the war, although it did modify preexisting armored fighting vehicles for that role, including the M4 Sherman and M5 Stuart tanks and the M3 Half-track. The assault gun concept was largely abandoned during the postwar era in favor of tanks or multipurpose tank destroyers attached to infantry formations which were also capable of providing direct fire support as needed. In the United States and most Western countries, the assault gun ceased to be recognized as a unique niche, with individual examples being classified either as a self-propelled howitzer or a tank. The Soviet Union continued funding development of new assault guns as late as 1967, although few of its postwar designs were adopted in large numbers. In Soviet and other Eastern European armies, the traditional assault gun was primarily superseded by tank destroyers such as the SU-100 capable of supporting either infantry or armor. History World War II Assault guns were primarily used during World War II by the forces of Nazi Germany and the Soviet Union. Early in the war, the Germans began to create makeshift assault guns by mounting their infantry support weapons on the bed of a truck or

By far the most common US design, and the first that was fully tracked and turreted (which became the American hallmark of World War II "tank destroyer" design) was the 3in Gun Motor Carriage M10, later supplemented by the 90 mm Gun Motor Carriage M36—both based on the M4 Sherman hull and powertrain—and the 76 mm Gun Motor Carriage M18 (Hellcat), based on a unique hull and powertrain design, with a slight visual resemblance to what was used for the later M24 Chaffee light tank. The M18 came closest to the US ideal; the vehicle was very fast, small, and mounted a gun in a roofless open turret. The M36 Jackson GMC possessed the only American-origin operational gun that could rival the vaunted 88 mm German anti-tank ordnance, the 90 mm M3 gun, and the M36 remained in service well after World War II. The only dedicated American-origin, casemate hull design fighting vehicle of any type built during the war, that resembled the German and Soviet tank destroyers in hull and general gun mounting design, was the experimental T28 Super Heavy Tank, which mounted a 105 mm T5E1 long-barrel cannon, which had a maximum firing range of 12 miles (20 km), and was originally designed as a self-propelled assault gun to breach Germany's Siegfried Line defenses. Of these tank destroyers, only the gun of the M36 proved effective against the frontal armor of Germans' larger armored vehicles at long range. The open top and light armor made these tank destroyers vulnerable to anything greater than small-arms fire. As the number of German tanks encountered by American forces steadily decreased throughout the war, most battalions were split up and assigned to infantry units as supporting arms, fighting as assault guns or being used essentially as tanks. In this sense they were an alternative to the Independent tank battalions that were attached to various Infantry Divisions. The expectation that German tanks would be engaged in mass formation was a failed assumption. In reality, German attacks effectively used combined arms on the ground, fighting cohesively. American tank destroyer battalions comprised three tank destroyer companies supported by nine security sections. The single-purpose tactics of the tank destroyer battalion failed to account for non-tank threats. In the 1950s the goal of providing airborne forces with a parachute-capable self-propelled anti-tank weapon led to the deployment of the M56 Scorpion and M50 Ontos. The concept later led to the M551 Sheridan light tank of the mid-1960s. United Kingdom British tanks in the early years of the war, both infantry tanks and cruiser tanks, were (with the exception of the pre-war Matilda I design) equipped with a gun capable of use against contemporary enemy tanks—the 40 mm Ordnance QF 2 pounder. This was replaced with the 57 mm Ordnance QF 6 pounder when that became available. There was extra impetus given to the development of anti-tank weaponry, which culminated in the 76mm Ordnance QF 17 pounder, widely considered one of the best anti-tank guns of the war. Towed anti-tank guns were the domain of the Royal Artillery and vehicles adapted to mount artillery, including anti-tank self-propelled guns such as the Deacon (6pdr on an armoured wheeled truck chassis) and Archer (17pdr on tracked chassis) and US-supplied vehicles, were their preserve rather than the Royal Armoured Corps. The self-propelled guns that were built in the "tank destroyer" mould came about through the desire to field the QF 17 pounder anti-tank gun and simultaneous lack of suitable standard tanks to carry it. As a result, they were of a somewhat extemporized nature. Mounting the gun on the Valentine tank chassis in a fixed superstructure gave the Archer, looking somewhat like the light-chassis German Marder III in appearance. The 17 pounder was also used to re-equip the US-supplied M10 Tank Destroyer, replacing the American 3-inch gun to produce the 17pdr SP Achilles. In 1942 the General Staff agreed on investigating self-propelled mountings of the 6-pounder, 17-pounder, 3-inch 20cwt guns and the 25-pounder field gun/howitzer on the Matilda II, Valentine, Crusader and Cavalier (Cruiser Mark VII) tank chassis. In October 1942 it was decided to progress using the Valentine chassis with a 17-pdr (which would become Archer) and 25-pdr (which entered service as Bishop). While there was a general move to a general purpose gun that was usable against both tanks and in supporting infantry, there was a need to put the 17 pdr into a tank for use against the enemy's heavy tanks. The Cruiser Mk VIII Challenger was a project to bring a 17 pdr tank into use to support the Cromwell cruiser tank. Delays led to it being outnumbered in use by the Sherman Firefly—but a derivative of Challenger was the more or less open-topped variant Avenger, which was delayed until post war before entering service. A cut-down 17 pdr, the 77mmHV was used to equip the Comet tank in the last year of the war. The closest the British came to developing an armored tank destroyer in the vein of the German Jagdpanzers or Soviet ISU series was the Churchill 3-inch Gun Carrier—a Churchill tank chassis with a boxy superstructure in place of the turret and mounting a 3-inch anti-aircraft gun. Although a number were ordered and fifty delivered in 1942, they were not put into service as the immediate threat passed. The design was rejected in favor of developing a 17 pounder armed Cromwell tank variant, ultimately leading to the Comet tank. The Tortoise "heavy assault tank", intended for use in breaking through fixed defensive lines, was well armoured and had a very powerful 32-pounder (94 mm) gun, but did not reach service use. By 1944, a number of the Shermans in British use were being converted to Sherman Fireflies by adding the QF 17 pounder gun. Initially this gave each troop (platoon) of Shermans one powerfully armed tank. By war's end—through the production of more Fireflies and the replacement of Shermans by British tanks—about 50% of Shermans in British service were Fireflies. Romania Until 1942, the Romanian tank force was equipped exclusively with obsolete R-1, R-2 and R35 tanks. Having faced big problems against Soviet T-34 and KV-1 tanks on the Eastern Front, the Romanian Army leadership sought for ways to improve its anti-tank capabilities. The initial plan was the creation of a tank comparable in characteristics to the T-34; instead, Romania went for a number of tank destroyers, since they were more adequate for its industry. The Mareșal is probably the best known Romanian AFV from the war; historians Steven Zaloga and Mark Axworthy state that it inspired the design of the later German Hetzer. Standing at only around 1.5 m tall, which would have made it very difficult to hit for its enemies, the Mareșal was a lightly armored, but highly mobile vehicle. It was armed with the Romanian 75 mm Reșița M1943 anti-tank gun, which proved to be among the best of its class during World War II, according to Mark Axworthy. During tests, the Mareșal proved to be superior in many aspects to the StuG III G, against which it competed. Those facts suggest that the Mareșal would have been an effective

of the Second World War was a self-propelled gun. The Semovente da 75/18, based on the M13/40 frame, was developed to support front-line infantry, and therefore had fixed armament: a 75 mm gun in casemate. However, thanks to its low height (185 cm) and the caliber of its gun the 75/18 also had good results in anti-tank combat, fighting against British and American (but not Soviet) units. After the Armistice of 1943, the 75/18 remained in use by German forces. Built on the same frame, the Semovente da 105/25 was equipped with a 105 mm gun and known as "bassotto" (Italian for dachshund) due to its lower height. As manufacturing began in 1943, the 105/25 was used by German forces. A further development was the Semovente da 75/46, which had a longer gun than the 75/18 and inclined armour 100 mm thick, making it similar to Sturmgeschütz III. Only 11 of these were manufactured. Before the Semovente da 75/18, the L40, built on an L6/40 light tank chassis, saw action in Africa and in Russia, but with disappointing results. Japan The Type 1 Ho-Ni I was the first self-propelled gun design of the Imperial Japanese Army. They were meant to be self-propelled artillery and tank destroyers for armored divisions. The plan was for the Type 1 Ho-Ni I gun tank to form part of a fire support company in each of the tank regiments. The Type 1 Ho-Ni I was developed by using the existing Type 97 Chi-Ha medium tank chassis and engine, and replacing the gun turret with a Type 90 75 mm field gun mounted in an open casemate with frontal and side armour only. They entered service in 1942 and were first deployed in combat at the Battle of Luzon in the Philippines in 1945. Some were used in static entrenched positions. A variant, known as the Type 1 Ho-Ni II mounted a Type 91 105 mm howitzer and had a slightly changed superstructure as far as the side armor with re-positioned observation visors. Production began in 1943, with only 54 completed. The other variant produced was the Type 3 Ho-Ni III, which mounted a Type 3 75 mm tank gun in a completely enclosed armored casemate to address the issue of crew protection in close combat. The welded superstructure had sloped armour and the gun mount had additional stamped armor plate. The total number produced of all three types in the Ho-Ni series were 111 units. Most of the Ho-Ni units were retained within the Japanese home islands to form part of the defenses against the projected American invasion, and did not see combat before the surrender of Japan. The Type 2 Ho-I Gun tank used the Type 1 Chi-He medium tank chassis. It was designed as a self-propelled howitzer, mounting a short barreled Type 99 75 mm gun to provide close-in fire support. For deployment, the gun tank was intended to be used in a fire support company for each of the tank regiments. No Type 2 Ho-I gun tanks are known to have engaged in combat prior to Japan's surrender. The prototype was built in 1942 and 31 units were produced in 1944. The Type 4 Ho-Ro self-propelled artillery used a modified Type 97 chassis. On to this platform, a Type 38 150 mm howitzer was mounted. The main gun could fire Type 88 APHE rounds and HEAT rounds. Given its breech loader, the maximum rate of fire was only 5 rounds per minute. The gun's elevation was restricted to 30 degrees by the construction of the chassis. Other design issues included the fact that although the gun crew was protected by a gun shield with armor thickness of 25 mm at the front, the shield only extended a very short distance on the sides; leaving the rest of the sides and back exposed. They were rushed into service, deployed and saw combat during the Philippines Campaign in the last year of World War II. Remaining units were deployed to Okinawa in ones and twos for island defense during the Battle of Okinawa, but were severely outnumbered by American artillery. Soviet Union As with the Germans of 1943, most of the Soviet designs mounted anti-tank guns, with limited traverse in casemate-style turretless hulls, in a general design format looking much like the Germans' own Jagdpanzer vehicles. The results were smaller, lighter, and simpler to build weapons that could carry larger guns than any contemporary tank, including the King Tiger. The Soviets produced high numbers of the SU-85 and SU-100 self-propelled guns based on the same chassis as the T-34 medium tank; the heavier-duty powertrain and hull of the IS-2 heavy tank were instead used to produce the heavier-hitting -armed ISU-122 and -armed ISU-152, both of which had impressive anti-tank capabilities earning each of them the Russian nickname Zveroboy ("beast killer") for their ability to destroy German Tigers, Panthers and Elefants. The predecessor of the ISU 152 was the SU-152, built on the KV-1s chassis and shared many similarities (including its gun) with the ISU-152. The ISU-152 built as a heavy assault gun, relied on the weight of the shell fired from its M-1937/43 howitzer to defeat tanks. In 1943, the Soviets also shifted all production of light tanks like the T-70 to much simpler and better-armed SU-76 self-propelled guns, which used the same drive train. The SU-76 was originally designed as an anti-tank vehicle, but was soon relegated to the infantry-support role. United States U.S. Army and counterpart British designs were very different in conception. U.S. doctrine was based, in light of the fall of France, on the perceived need to defeat German blitzkrieg tactics, and U.S. units expected to face large numbers of German tanks, attacking on relatively narrow fronts. These were expected to break through a thin screen of anti-tank guns, hence the decision that the main anti-tank units—the Tank Destroyer (TD) battalions—should be concentrated and very mobile. In practice, such German attacks rarely happened. Throughout the war, only one battalion ever fought in an engagement like that originally envisaged (the 601st, at the Battle of El Guettar). The Tank Destroyer Command eventually numbered over 100,000 men and 80 battalions each equipped with 36 self-propelled tank destroyers or towed guns. Only a few shots were expected to be fired from any firing position. Strong reconnaissance elements were provided so that TDs could use pre-arranged firing positions to best advantage. Flanking fire by TDs was emphasized, both to penetrate thinner enemy side armor, and to reduce the likelihood of accurate enemy return fire. All American tank destroyers were officially known by exactly the same collective term used for American self-propelled artillery ordnance, gun motor carriage. The designs were intended to be very mobile and heavily armed. Most of the tank-hull based designs used special open-topped turrets of a differing design to the original tank it was based on, which was meant to both save weight and to accommodate a larger gun. The earliest expedient design was an M3 Half-track mounting an M1897 gun in a limited-traverse mount, and called the 75 mm Gun Motor Carriage M3. Another, considerably less successful, early design mounted a 37-mm anti-tank gun in the bed of a Dodge 3/4-ton truck—the 37-mm GMC M6. By far the most common US design, and the first that was fully tracked and turreted (which became the American hallmark of World War II "tank destroyer" design) was the 3in Gun Motor Carriage M10, later supplemented by the 90 mm Gun Motor Carriage M36—both based on the M4 Sherman hull and powertrain—and the 76 mm Gun Motor Carriage M18 (Hellcat), based on a unique hull and powertrain design, with a slight visual resemblance to what was used for the later M24 Chaffee light tank. The M18 came closest to the US ideal; the vehicle was very fast, small, and mounted a gun in a roofless open turret. The M36 Jackson GMC possessed the only American-origin operational gun that could rival the vaunted 88 mm German anti-tank ordnance, the 90 mm M3 gun, and the M36 remained in service well after World War II. The only dedicated American-origin, casemate hull design fighting vehicle of any type built during the war, that resembled the German and Soviet tank destroyers in hull and general gun mounting design, was the experimental T28 Super Heavy Tank, which mounted a 105 mm T5E1 long-barrel cannon, which had a maximum firing range of 12 miles (20 km), and was originally designed as a self-propelled assault gun to breach Germany's Siegfried Line defenses. Of these tank destroyers, only the gun of the M36 proved effective against the frontal armor of Germans' larger armored vehicles at long range. The open top and light armor made these tank destroyers vulnerable to anything greater than small-arms fire. As the number of German tanks encountered by American forces steadily decreased throughout the war, most battalions were split up and assigned to infantry units as supporting arms, fighting as assault guns or being used essentially as tanks. In this sense they were an alternative to the Independent tank battalions that were attached to various Infantry Divisions. The expectation that German tanks would be engaged in mass formation was a failed assumption. In reality, German attacks effectively used combined arms on the ground, fighting cohesively. American tank destroyer battalions comprised three tank destroyer companies supported by nine security sections. The single-purpose tactics of the tank destroyer battalion failed to account for non-tank threats. In the 1950s the goal of providing airborne forces with a parachute-capable self-propelled anti-tank weapon led to the deployment of the M56 Scorpion and M50 Ontos. The concept later led to the M551 Sheridan light tank of the mid-1960s. United Kingdom British tanks in the early years of the war, both infantry tanks and cruiser tanks, were (with the exception of the pre-war Matilda I design) equipped with a gun capable of use against contemporary enemy tanks—the 40 mm Ordnance QF 2 pounder. This was replaced with the 57 mm Ordnance QF 6 pounder when that became available. There was extra impetus given to the development of anti-tank weaponry, which culminated in the 76mm Ordnance QF 17 pounder, widely considered one of the best anti-tank guns of the war. Towed anti-tank guns were the domain of the Royal Artillery and vehicles adapted to mount artillery, including anti-tank self-propelled guns such as the Deacon (6pdr on an armoured wheeled truck chassis) and Archer (17pdr on tracked chassis) and US-supplied vehicles, were their preserve rather than the Royal Armoured Corps. The self-propelled guns that were built in the "tank destroyer" mould came about through the desire to field the QF 17 pounder anti-tank gun and simultaneous lack of suitable standard tanks to carry it. As a result, they were of a somewhat extemporized nature. Mounting the gun on the Valentine tank chassis in a fixed superstructure gave the Archer, looking somewhat like the light-chassis German Marder III in appearance. The 17 pounder was also used to re-equip the US-supplied M10 Tank Destroyer, replacing the American 3-inch gun to produce the 17pdr SP Achilles. In 1942 the General Staff agreed on investigating self-propelled mountings of the 6-pounder, 17-pounder, 3-inch 20cwt guns and the 25-pounder field gun/howitzer on the Matilda II, Valentine, Crusader and Cavalier (Cruiser Mark VII) tank chassis. In October 1942 it was decided to progress using the Valentine chassis with a 17-pdr (which would become Archer) and 25-pdr (which entered service as Bishop). While there was a general move to a general purpose gun that was usable against both tanks and in supporting infantry, there was a need to put the 17 pdr into a tank for use against the enemy's heavy tanks. The Cruiser Mk VIII Challenger was a project to bring a 17 pdr tank into use to support the Cromwell cruiser tank. Delays led to it being outnumbered in use by the Sherman Firefly—but a derivative of Challenger was the more or less open-topped variant Avenger, which was delayed until post war before entering service. A cut-down 17 pdr, the 77mmHV was used to equip the

ordered "fighting cars" based on Rolls-Royce, Talbot and Wolseley chassis. By the time Rolls-Royce Armoured Cars arrived in December 1914, the mobile period on the Western Front was already over. As described below, they had a fascinating birth and long and interesting service. More tactically important was the development of formed units of armored cars, such as the Canadian Automobile Machine Gun Brigade, which was the first fully mechanized unit in the history of the British Army. The brigade was established on September 2, 1914, in Ottawa, as Automobile Machine Gun Brigade No. 1 by Brigadier-General Raymond Brutinel. The Brigade was originally equipped with 8 Armoured Autocars mounting two machine guns. By 1918 Brutinel's force consisted of two Motor Machine Gun Brigades (each of five gun batteries containing eight weapons apiece). The brigade, and its armored cars, provided yeoman service in many battles, notably at Amiens. The Rolls-Royce Armoured Car was famously proposed, developed, and utilised by the 2nd Duke of Westminster. He took a squadron of these cars to France in time to make a noted contribution to the Second Battle of Ypres, and thereafter the cars with their master were sent to the Middle East to play a part in the British campaign in Palestine and elsewhere. These cars appear in the memoirs of numerous officers of the BEF during the earlier stages of the Great War - their ducal master often being described in an almost piratical style. Armored cars also saw action on the Eastern Front. From 18 February - 26 March 1915, the German army under General Max von Gallwitz attempted to break through the Russian lines in and around the town of Przasnysz, Poland (about 110 km / 68 miles north of Warsaw) during the Battle of Przasnysz (Polish: Bitwa przasnyska). Near the end of the battle, the Russians used four Russo-Balt armored cars and a armored car to break through the Germans' lines and force the Germans to retreat. World War II The British Royal Air Force (RAF) in the Middle East was equipped with Rolls-Royce Armoured Cars and Morris tenders. Some of these vehicles were among the last of a consignment of ex-Royal Navy armored cars that had been serving in the Middle East since 1915. In September 1940 a section of the No. 2 Squadron RAF Regiment Company was detached to General Wavell's ground forces during the first offensive against the Italians in Egypt. It is said that these armored cars became ‘the eyes and ears of Wavell’. During the actions in the October of that year the company was employed on convoy escort tasks, airfield defense, fighting reconnaissance patrols and screening operations. During the Anglo-Iraqi War, some of the units located in the British Mandate of Palestine were sent to Iraq and drove Fordson armored cars. "Fordson" armored cars were Rolls-Royce armored cars which received new chassis from a Fordson truck in Egypt. By the start of the new war, the German army possessed some highly effective reconnaissance vehicles, such as the Schwerer Panzerspähwagen. The Soviet BA-64 was influenced by a captured Leichter Panzerspähwagen before it was first tested in January 1942. In the second half of the war, the American M8 Greyhound and the British Daimler Armoured Cars featured turrets mounting light guns (40 mm or less). As with other wartime armored cars, their reconnaissance roles emphasized greater speed and stealth than a tracked vehicle could provide, so their limited armor, armament and off-road capabilities were seen as acceptable compromises. Military use A military armored car is a type of armored fighting vehicle having wheels (from four to ten large, off-road wheels) instead of tracks, and usually light armor. Armored cars are typically less expensive and on roads have better speed and range than tracked military vehicles. They do however have less mobility as they have less off-road capabilities because of the higher ground pressure. They also have less obstacle climbing capabilities than tracked vehicles. Wheels are more vulnerable to enemy fire than tracks, they have a higher signature and in most cases less armor than comparable tracked vehicles. As a result, they are not intended for heavy fighting; their normal use is for reconnaissance, command, control, and communications, or for use against lightly armed insurgents or rioters. Only some are intended to enter close combat, often accompanying convoys to protect soft-skinned vehicles. Light armored cars, such as the British Ferret are armed with just a machine gun. Heavier vehicles are armed with autocannon or a large caliber gun. The heaviest armored cars, such as the German, World War II era Sd.Kfz. 234 or the modern, US M1128 Mobile Gun System, mount the same guns that arm medium tanks. Armored cars are popular for peacekeeping or internal security duties. Their appearance is less confrontational and threatening than tanks, and their size and maneuverability is said to be more compatible with tight urban spaces designed for wheeled vehicles. However, they do have a larger turning radius compared to tracked vehicles which can turn on the spot and their tires are vulnerable and are less capable in climbing and crushing obstacles. Further, when there is true combat they are easily outgunned and lightly armored. The threatening appearance of a tank is often enough to keep an opponent from attacking, whereas a less threatening vehicle such as an armored car is more likely to be attacked. Many modern forces now have their dedicated armored car designs, to exploit the advantages noted above. Examples would be the M1117 Armored Security Vehicle of the USA or Alvis Saladin of the post-World War II era in the United Kingdom. Alternatively, civilian vehicles may be modified into improvised armored cars in ad hoc fashion. Many militias and irregular forces adapt civilian vehicles into AFVs (armored fighting vehicles) and troop carriers, and in some regional conflicts these "technicals" are the only combat vehicles present. On occasion, even the soldiers of national militaries are forced to adapt their civilian-type vehicles for combat use, often using improvised armor and scrounged weapons. Scout cars In the 1930s, a new sub-class of armored car emerged in the United States, known as the scout car. This was a compact light armored car which was either unarmed or armed only with machine guns for self-defense. Scout cars were designed as purpose-built reconnaissance vehicles for passive observation and intelligence gathering. Armored cars which carried large caliber, turreted weapons systems were not considered scout cars. The concept gained popularity worldwide during World War II

break through the Russian lines in and around the town of Przasnysz, Poland (about 110 km / 68 miles north of Warsaw) during the Battle of Przasnysz (Polish: Bitwa przasnyska). Near the end of the battle, the Russians used four Russo-Balt armored cars and a armored car to break through the Germans' lines and force the Germans to retreat. World War II The British Royal Air Force (RAF) in the Middle East was equipped with Rolls-Royce Armoured Cars and Morris tenders. Some of these vehicles were among the last of a consignment of ex-Royal Navy armored cars that had been serving in the Middle East since 1915. In September 1940 a section of the No. 2 Squadron RAF Regiment Company was detached to General Wavell's ground forces during the first offensive against the Italians in Egypt. It is said that these armored cars became ‘the eyes and ears of Wavell’. During the actions in the October of that year the company was employed on convoy escort tasks, airfield defense, fighting reconnaissance patrols and screening operations. During the Anglo-Iraqi War, some of the units located in the British Mandate of Palestine were sent to Iraq and drove Fordson armored cars. "Fordson" armored cars were Rolls-Royce armored cars which received new chassis from a Fordson truck in Egypt. By the start of the new war, the German army possessed some highly effective reconnaissance vehicles, such as the Schwerer Panzerspähwagen. The Soviet BA-64 was influenced by a captured Leichter Panzerspähwagen before it was first tested in January 1942. In the second half of the war, the American M8 Greyhound and the British Daimler Armoured Cars featured turrets mounting light guns (40 mm or less). As with other wartime armored cars, their reconnaissance roles emphasized greater speed and stealth than a tracked vehicle could provide, so their limited armor, armament and off-road capabilities were seen as acceptable compromises. Military use A military armored car is a type of armored fighting vehicle having wheels (from four to ten large, off-road wheels) instead of tracks, and usually light armor. Armored cars are typically less expensive and on roads have better speed and range than tracked military vehicles. They do however have less mobility as they have less off-road capabilities because of the higher ground pressure. They also have less obstacle climbing capabilities than tracked vehicles. Wheels are more vulnerable to enemy fire than tracks, they have a higher signature and in most cases less armor than comparable tracked vehicles. As a result, they are not intended for heavy fighting; their normal use is for reconnaissance, command, control, and communications, or for use against lightly armed insurgents or rioters. Only some are intended to enter close combat, often accompanying convoys to protect soft-skinned vehicles. Light armored cars, such as the British Ferret are armed with just a machine gun. Heavier vehicles are armed with autocannon or a large caliber gun. The heaviest armored cars, such as the German, World War II era Sd.Kfz. 234 or the modern, US M1128 Mobile Gun System, mount the same guns that arm medium tanks. Armored cars are popular for peacekeeping or internal security duties. Their appearance is less confrontational and threatening than tanks, and their size and maneuverability is said to be more compatible with tight urban spaces designed for wheeled vehicles. However, they do have a larger turning radius compared to tracked vehicles which can turn on the spot and their tires are vulnerable and are less capable in climbing and crushing obstacles. Further, when there is true combat they are easily outgunned and lightly armored. The threatening appearance of a tank is often enough to keep an opponent from attacking, whereas a less threatening vehicle such as an armored car is more likely to be attacked. Many modern forces now have their dedicated armored car designs, to exploit the advantages noted above. Examples would be the M1117 Armored Security Vehicle of the USA or Alvis Saladin of the post-World War II era in the United Kingdom. Alternatively, civilian vehicles may be modified into improvised armored cars in ad hoc fashion. Many militias and irregular forces adapt civilian vehicles into AFVs (armored fighting vehicles) and troop carriers, and in some regional conflicts these "technicals" are the only combat vehicles present. On occasion, even the soldiers of national militaries are forced to adapt their civilian-type vehicles for combat use, often using improvised armor and scrounged weapons. Scout cars In the 1930s, a new sub-class of armored car emerged in the United States, known as the scout car. This was a compact light armored car which was either unarmed or armed only with machine guns for self-defense. Scout cars were designed as purpose-built reconnaissance vehicles for passive observation and intelligence gathering. Armored cars which carried large caliber, turreted weapons systems were not considered scout cars. The concept gained popularity worldwide during World War II and was especially favored in nations where reconnaissance

guns and AA guns during the Franco-Thai war (1940-1941) along with 30 Vickers Mk.E Type B 6-ton tanks. This was probably the first tracked SPAAG manufactured in series. Later the British also developed a version of the Mk.VI Light Tank armed with four machine guns that were known as Light Tank AA Mk.I. And also a twin 15 mm version based on the Light Tank Mk.V was built. Among early pre-war pioneers of self-propelled AA guns were the Germans. By the time of the war, they fielded the Sd.Kfz. 10/4 and 6/2, cargo half-tracks mounting single 20 mm or 37 mm AA guns (respectively). Later in the war similar German half-tracks mounted quadruple 20 mm weapons. World War II Larger guns followed on larger trucks, but these mountings generally required off-truck setup in order to unlimber the stabilizing legs these guns needed. One exception to this rule was the Italian Cannone da 90/53 which was highly effective when mounted on trucks, a fit known as the "autocannoni da 90/53". The 90/53 was a feared weapon, notably in the anti-tank role, but only a few hundred had been produced by the time of the armistice in 1943. Other nations tended to work on truck chassis. Starting in 1941, the British developed the "en portee" method of mounting an anti-tank gun (initially a 2 pounder) on a truck. This was to prevent the weapon from being damaged by long-distance towing across rough, stony deserts, and it was intended only to be a carrying method, with the gun unloaded for firing. However, crews tended to fire their weapons from their vehicles for the mobility this method provided, with consequent casualties. This undoubtedly inspired their Morris C9/B (officially the "Carrier, SP, 4x4, 40 mm AA"), a Bofors 40 mm AA gun mounted on a chassis derived from the Morris "Quad" Field Artillery Tractor truck. Similar types, based on 3-ton lorries, were produced in Britain, Canada and Australia, and together formed the most numerous self-propelled AA guns in British service. The U.S. Army brought truck-towed Bofors 40 mm AA guns along with truck-mounted units fitted with mechanized turrets when they sailed, first for Great Britain and then onto France. The turrets carried four .50 inch (12.7 mm) machine guns, which were designed to be adjusted to converge at the single point where enemy aircraft were expected to appear at low altitude in conduction of strafing runs directed at large infantry and field artillery units. Interest in mobile AA turned to heavier vehicles with the mass and stability needed to easily train weapons of all sizes. Probably the desire, particularly in German service, for anti-aircraft vehicles to be armoured for their own protection also assisted this trend. The concept of an armored SPAAG was pioneered by Hungary during World War II by producing the 40M Nimrod based on the Luftvärnskanonvagn L-62 Anti II license acquired from Sweden. Germany followed later with their "Flakpanzer" series. German World War II SPAAGs include the Möbelwagen, Wirbelwind, Ostwind and Kugelblitz. Other forces followed with designs of their own, notably the American M16 created by mounting quadruple M2HB Browning machine guns on a M3 Half-track. The British developed their own SPAAGs throughout the war mounting multiple machine guns and light cannon on various tank and armoured car chassis and by 1943, the Crusader AA tanks, which mounted the Bofors 40 mm gun or two-three Oerlikon 20 mm cannon. Although used during the Normandy landings, by that point German aircraft were contained by the Allies own air forces and they were largely unneeded. Cold War and later The introduction of jet engines and the subsequent rough doubling of aircraft speeds greatly reduced the effectiveness of the SPAAG against attack aircraft. A typical SPAAG round might have a muzzle velocity on the order of and might take as long as two to three seconds to reach a target at its maximum range. An aircraft flying at is moving at a rate of about . This means the aircraft will have moved hundreds of meters during the flight time of the shells, greatly complicating the aiming problem to the point where close passes were essentially impossible to aim using manual gunsights. This speed also allowed the aircraft to rapidly fly out of range of the guns; even if the aircraft passes directly over the SPAAG, it would be within its firing radius for under 30 seconds. SPAAG development continued through the early 1950s with ever-larger guns, improving the range and allowing the engagement to take place at longer distances where the crossing angle was smaller and aiming was easier. Examples including the 40 mm U.S. M42 Duster and the 57 mm Soviet

and together formed the most numerous self-propelled AA guns in British service. The U.S. Army brought truck-towed Bofors 40 mm AA guns along with truck-mounted units fitted with mechanized turrets when they sailed, first for Great Britain and then onto France. The turrets carried four .50 inch (12.7 mm) machine guns, which were designed to be adjusted to converge at the single point where enemy aircraft were expected to appear at low altitude in conduction of strafing runs directed at large infantry and field artillery units. Interest in mobile AA turned to heavier vehicles with the mass and stability needed to easily train weapons of all sizes. Probably the desire, particularly in German service, for anti-aircraft vehicles to be armoured for their own protection also assisted this trend. The concept of an armored SPAAG was pioneered by Hungary during World War II by producing the 40M Nimrod based on the Luftvärnskanonvagn L-62 Anti II license acquired from Sweden. Germany followed later with their "Flakpanzer" series. German World War II SPAAGs include the Möbelwagen, Wirbelwind, Ostwind and Kugelblitz. Other forces followed with designs of their own, notably the American M16 created by mounting quadruple M2HB Browning machine guns on a M3 Half-track. The British developed their own SPAAGs throughout the war mounting multiple machine guns and light cannon on various tank and armoured car chassis and by 1943, the Crusader AA tanks, which mounted the Bofors 40 mm gun or two-three Oerlikon 20 mm cannon. Although used during the Normandy landings, by that point German aircraft were contained by the Allies own air forces and they were largely unneeded. Cold War and later The introduction of jet engines and the subsequent rough doubling of aircraft speeds greatly reduced the effectiveness of the SPAAG against attack aircraft. A typical SPAAG round might have a muzzle velocity on the order of and might take as long as two to three seconds to reach a target at its maximum range. An aircraft flying at is moving at a rate of about . This means the aircraft will have moved hundreds of meters during the flight time of the shells, greatly complicating the aiming problem to the point where close passes were essentially impossible to aim using manual gunsights. This speed also allowed the aircraft to rapidly fly out of range of the guns; even if the aircraft passes directly over the SPAAG, it would be within its firing radius for under 30 seconds. SPAAG development continued through the early 1950s with ever-larger guns, improving the range and allowing the engagement to take place at longer distances where the crossing angle was smaller and aiming was easier. Examples including the 40 mm U.S. M42 Duster and the 57 mm Soviet ZSU-57-2. However, both were essentially obsolete before they entered service, and found employment solely in the ground-support role. The M42 was introduced to the Vietnam War to counter an expected North Vietnamese air offensive, but when this failed to materialize it was used as an effective direct-fire weapon. The ZSU-57 found similar use in the Yugoslav Wars, where its high-angle fire was useful in the mountainous terrain. By the late 1950s, the US Army had given up on the SPAAG concept, considering all gun-based weapons to be useless against modern aircraft. This belief was generally held by many forces, and the anti-aircraft role turned almost exclusively to missile systems. The Soviet Union remained an outlier, beginning the development of a new SPAAG in 1957, which emerged as the ZSU-23-4 in 1965. This system included search-and-track radars, fire control, and automatic gun-laying, greatly increasing its effectiveness against modern targets. The ZSU-23 proved very effective when used in concert with SAMs; the presence of SAMs forced aircraft to fly low to avoid their radars, placing them within range of the ZSUs. The success of the ZSU-23 led to a resurgence of SPAAG development. This was also prompted by the introduction of attack helicopters in the 1970s, which could hide behind terrain and then "pop up" for an attack lasting only a few tens of seconds; missiles were ineffective at low altitudes,

into the season, Van Basten resigned as manager to become assistant manager under Alex Pastoor, citing heavy stress as the main reason. Pastoor was the interim manager during two matches under Van Basten's absence and received the official title on 16 September, but contract negotiations failed and he left the club just two days later. A week later, John van den Brom was appointed manager. Under Van den Brom, AZ quickly rose up to the sub-top, eventually finished the season in third place, surpassing Feyenoord on the final season's matchday and qualifying for the 2015–16 Europa League. The 2015–16 Eredivisie started with AZ selling most of its first-team players from the previous season during the summer transfer period. As a response, AZ bought players from other Dutch clubs, notably Vincent Janssen from Almere City, Alireza Jahanbakhsh from NEC and Ben Rienstra from PEC Zwolle. In December, it was announced free agent Ron Vlaar signed a contract until the end of the season after training with the club for a few weeks prior. Vlaar quickly became team captain and helped lift AZ from tenth place to a fourth-place finish in the league. Along this rise, new signing Vincent Janssen scored 27 goals for the club, earning him the Eredivisie top goalscorer title. In the 2015–16 KNVB Cup, AZ made it to the semi-finals, losing 3–1 to Feyenoord. AZ won the first two qualification rounds to qualify for the 2015–16 Europa League group stage, but finished last in their group. At the start of the 2016–17 Eredivisie, AZ sold last season's performer Vincent Janssen to Tottenham Hotspur and long-time midfielder Markus Henriksen to Hull City. In the 2016–17 Europa League, AZ finished second in Group D, surviving the group stage for the third time in five seasons. After an excellent 2019/20 season in which AZ beat league leaders Ajax home and away, aided by consistent performances from youth academy talents such as Teun Koopmeiners, Myron Boadu, Calvin Stengs and Owen Wijndal, the season was forced to end early due to the effects of the COVID-19 pandemic. Joint on points with Ajax at the top of the table, AZ were given second place on goal difference, and subsequently earned Qualification to the Champions League second qualifying round. A poor start to their 2020/21 Eredivisie campaign saw AZ draw five games in a row, before eventually picking up a victory against RKC Waalwijk on the 1st of November 2020. AZ also struggled in the European competitions, they started well with a 3-1 extra time come back against Viktoria Plzen in the Champions League qualifiers but a few weeks later lost 2–0 to Dynamo Kiev, seeing them fall back into the Europa League. After Victory against Napoli and Rijeka early in the pool stages AZ looked on good course to progress, but after losing to Real Sociedad away, and the reverse fixture ending in a 0–0 draw, AZ's job was more difficult. A 1–1 draw with Napoli, meant that all that had to be done to progress was to win away to Rijeka. However the departure the week before the game of manager Arne Slot, saw an unorganised team lose 2–1 to Rijeka, ending their European dream. Current squad Out on loan Other players under contract Jong AZ Participating in the Eerste Divisie, the reserve squad of AZ trains and plays their home games in Zaanstad. Stadium and sponsor Stadium AZ play its home matches at the AFAS Stadion, located in the southern part of the city of Alkmaar. The stadium, which is directly owned by the club, was opened in 2006 and replaced the old Alkmaarderhout venue as the DSB Stadion. The stadium currently has a capacity of 17,023. During its design stages, the name Victorie Stadion was frequently used, referring to the Dutch War of Independence, the phrase "In Alkmaar begint de victorie" (Victory begins in Alkmaar) in particular. Until now, this name has not been officially in use, the board instead opting for sponsorship deals because of financial motives. However, to this day, the name maintains a good share of support among the fans. To further increase revenue, AZ's board of directors decided to expand the capacity of the new stadium to at least 30,000 somewhere in the future. The extension will be realised by constructing a second tier to three of the four stands. The main stand with all technical areas, VIP and sponsor and media facilities will remain in place. These plans, however, were put on hold after the DSB bankruptcy and there are no current plans to increase the capacity. In October 2009, sponsor DSB Bank was declared bankrupt. The stadium name temporarily changed from DSB Stadion to AZ Stadion, as it was considered undesirable that the stadium was linked with a non-existent bank. In February 2010, a new main sponsor was found in construction works service provider BUKO, based in Beverwijk. A year later, in the 2010–11 season, took over as official stadium sponsor. The current external name of the ground is the AFAS Stadion. On 10 August 2019, the roof of the stadium partially collapsed. No people were injured during the incident. As the result AZ spent the rest of the year playing home matches at the Cars Jeans Stadion in The Hague whilst the damaged roof was being removed, before returning to the stadium on 15 December 2019, beating Ajax 1–0 in their first match back. AZ played the rest of the 2019/20 season, until the COVID-19 pandemic cut it short, without a roof. During the 2020/21 season, a new roof was installed, held up by 20 crane-like arms on three sides and a so-called mega truss on the main stand. The renewed stadium, which also included a capacity upgrade of nearly 2,500 seats for a new total capacity of 19,500, was officially opened on September 11th, 2021, before the home game against PSV. Kit suppliers and shirt

winning the 1997-98 Eerste Divisie title. The club achieved consecutive finishes around the middle positions in the league until ending up in third place in the 2004-05 Eredivisie season, AZ's highest position for 23 years. In the summer of 2006, the club moved to a new 17,000 capacity stadium, AZ Stadion. Despite playing strongly for the majority of the 2006–07 season, AZ's season ended in disappointment. First, entering the last matchday of the 2006–07 Eredivisie season, AZ led PSV and Ajax on goal difference at the top of the league table, but ended up third after losing their last match against 16th placed team Excelsior, AZ played with ten men for 80 minutes. Additionally, AZ then lost the KNVB Cup final to Ajax 8–7 after a penalty shoot-out, while also falling to Ajax over two play-off matches for participation in the Champions League. After the season, key players like Tim de Cler, Danny Koevermans and Shota Arveladze left the team. A remarkable run ended in the 2007–08 season: after AZ lost a group stage match against Everton (3–2) in the UEFA Cup, the club's unbeaten run of 32 home matches in European competitions – lasting from 1977 to 2007 – ended. AZ had a poor season, suffering elimination in the first round of the KNVB Cup and the group stage of the UEFA Cup, as well as finishing the 2007–08 Eredivisie in a disappointing 11th place. Towards the latter stages of the season, in March 2008, AZ manager Louis van Gaal had initially tendered his resignation, but after protests the players and directors, he rescinded his resignation. The 2008–09 season had an unpromising start after two opening defeats against NAC Breda and ADO Den Haag. However, starting with a 1–0 victory over defending league champions PSV, AZ did not lose a match in its next 28 matches, including a run of 11-straight matches where AZ did not concede an opposition goal. Three weeks before the end of the season, AZ became Eredivisie champions, edging nearest title rivals Twente and Ajax comfortably. This was a historic achievement for the club as this was the first title-winning season for 28 years, and it also meant a return to the UEFA Champions League. Being league champions, AZ qualified for the Champions League for only the second time. It was drawn into a group alongside Arsenal FC, Standard Liège and Olympiacos but only took four points from six matches and finished bottom of their group. 2009–2014 For the 2009–10 season, Ronald Koeman succeeded Louis van Gaal, who had departed to manage Bayern Munich after leading AZ to the championship. Koeman was officially hired on 17 May 2009, but on 5 December, AZ announced he was no longer in charge of the club after losing 7 of his first 16 matches. Former Rangers and Zenit Saint Petersburg manager Dick Advocaat took over for the remainder of the season. Under Advocaat, AZ achieved solid results and secured European football for the next season. For the 2010–11 season, AZ appointed Gertjan Verbeek as its new manager. They finished the 2010–11 Eredivisie in fourth place, thus securing Europa League football for the next season, while in the KNVB Cup, AZ reached the last eight, where they were beaten by rivals Ajax by a 1–0 scoreline. AZ also finished third in their Europa League group, thus failing to qualifying for the competition's knockout round. In the 2011–12 season, AZ finished fourth in the Eredivisie, though performed significantly better in cup competitions, reaching the semi-finals in the KNVB Cup (losing to Heracles after extra time) and the quarter-finals in the Europa League. In the latter, the club ultimately lost to Valencia after having defeated Udinese, Anderlecht, Malmö FF, Austria Wien, Metalist Kharkiv, Aalesund and Baumit Jablonec to reach that stage. On 21 December 2011, during the quarter-finals of the 2011–12 KNVB Cup, a 19-year-old Ajax fan invaded the Amsterdam Arena pitch in the 36th minute with Ajax winning 1–0, attacking AZ goalkeeper Esteban Alvarado. The fan slipped and Alvarado kicked the fan twice, prompting the referee to issue the goalkeeper a red card. Following this, AZ manager Gertjan Verbeek ordered his players to leave the pitch for the dressing room in protest. The match was later played on 19 January 2012, with Alvarado's red card rescinded; AZ won 3–2. The 2012–13 season started in the Europa League with a qualifying play-off round against Guus Hiddink's Anzhi Makhachkala. AZ was hammered 6–0 on aggregate. Disappointingly, AZ finished tenth in the 2012–13 Eredivisie, although the club won the 2012–13 KNVB Cup after defeating PSV 2–1 in the final. As cup winners, AZ automatically qualified for the 2013–14 Europa League. In September 2013, just one day after emphatically beating PSV, at the time the league leaders, Verbeek was dismissed as first team manager by the club due to "a lack of chemistry" between management and players. He was replaced by Dick Advocaat for the remainder of the season until a permanent replacement could be found. Advocaat took AZ to the semi-finals of the KNVB Cup, the quarter-finals of the Europa League and eighth in the league, ultimately losing to Groningen in the Europa League play-off final round (their 58th match of the season, a club record). Since 2014 The 2014–15 season began with a new manager, former Heerenveen manager and Ajax great Marco van Basten. However, after just three matches into the season, Van Basten resigned as manager to become assistant manager under Alex Pastoor, citing heavy stress as the main reason. Pastoor was the interim manager during two matches under Van Basten's absence and received the official title on 16 September, but contract negotiations failed and he left the club just two days later. A week later, John van den Brom was appointed manager. Under Van den Brom, AZ quickly rose up to the sub-top, eventually finished the season in third place, surpassing Feyenoord on the final season's matchday and qualifying for the 2015–16 Europa League. The 2015–16 Eredivisie started with AZ selling most of its first-team players from the previous season during the summer transfer period. As a response, AZ bought players from other Dutch clubs, notably Vincent Janssen from Almere City, Alireza Jahanbakhsh from NEC and Ben Rienstra from PEC Zwolle. In December, it was announced free agent Ron Vlaar signed a contract until the end of the season after training with the club for a few weeks prior. Vlaar quickly became team captain and helped lift AZ from tenth place to a fourth-place finish in the league. Along this rise, new signing Vincent Janssen scored 27 goals for the club, earning him the Eredivisie top goalscorer title. In the 2015–16 KNVB Cup, AZ made it to the semi-finals, losing 3–1 to Feyenoord. AZ won the first two qualification rounds to qualify for the 2015–16 Europa League group stage, but finished last in their group. At the start of the 2016–17 Eredivisie, AZ sold last season's performer Vincent Janssen to Tottenham Hotspur and long-time midfielder Markus Henriksen to Hull City. In the 2016–17 Europa League, AZ finished second in Group D, surviving the group stage for the third time in five seasons. After an excellent 2019/20 season in which AZ beat league leaders Ajax home and away, aided by consistent performances from youth academy talents such as Teun Koopmeiners, Myron Boadu, Calvin Stengs and Owen Wijndal, the season was forced to end early due to the effects of the COVID-19 pandemic. Joint on points with Ajax at the top of the table, AZ were given second place on goal difference, and subsequently earned Qualification to the Champions League second qualifying round. A poor start to their 2020/21

cortisol influence metabolism rates of proteins, fats and sugars ("glucose"). Androgens such as dehydroepiandrosterone. Mineralocorticoids The adrenal gland produces aldosterone, a mineralocorticoid, which is important in the regulation of salt ("mineral") balance and blood volume. In the kidneys, aldosterone acts on the distal convoluted tubules and the collecting ducts by increasing the reabsorption of sodium and the excretion of both potassium and hydrogen ions. Aldosterone is responsible for the reabsorption of about 2% of filtered glomerular filtrate. Sodium retention is also a response of the distal colon and sweat glands to aldosterone receptor stimulation. Angiotensin II and extracellular potassium are the two main regulators of aldosterone production. The amount of sodium present in the body affects the extracellular volume, which in turn influences blood pressure. Therefore, the effects of aldosterone in sodium retention are important for the regulation of blood pressure. Glucocorticoids Cortisol is the main glucocorticoid in humans. In species that do not create cortisol, this role is played by corticosterone instead. Glucocorticoids have many effects on metabolism. As their name suggests, they increase the circulating level of glucose. This is the result of an increase in the mobilization of amino acids from protein and the stimulation of synthesis of glucose from these amino acids in the liver. In addition, they increase the levels of free fatty acids, which cells can use as an alternative to glucose to obtain energy. Glucocorticoids also have effects unrelated to the regulation of blood sugar levels, including the suppression of the immune system and a potent anti-inflammatory effect. Cortisol reduces the capacity of osteoblasts to produce new bone tissue and decreases the absorption of calcium in the gastrointestinal tract. The adrenal gland secretes a basal level of cortisol but can also produce bursts of the hormone in response to adrenocorticotropic hormone (ACTH) from the anterior pituitary. Cortisol is not evenly released during the day – its concentrations in the blood are highest in the early morning and lowest in the evening as a result of the circadian rhythm of ACTH secretion. Cortisone is an inactive product of the action of the enzyme 11β-HSD on cortisol. The reaction catalyzed by 11β-HSD is reversible, which means that it can turn administered cortisone into cortisol, the biologically active hormone. Formation All corticosteroid hormones share cholesterol as a common precursor. Therefore, the first step in steroidogenesis is cholesterol uptake or synthesis. Cells that produce steroid hormones can acquire cholesterol through two paths. The main source is through dietary cholesterol transported via the blood as cholesterol esters within low density lipoproteins (LDL). LDL enters the cells through receptor-mediated endocytosis. The other source of cholesterol is synthesis in the cell's endoplasmic reticulum. Synthesis can compensate when LDL levels are abnormally low. In the lysosome, cholesterol esters are converted to free cholesterol, which is then used for steroidogenesis or stored in the cell. The initial part of conversion of cholesterol into steroid hormones involves a number of enzymes of the cytochrome P450 family that are located in the inner membrane of mitochondria. Transport of cholesterol from the outer to the inner membrane is facilitated by steroidogenic acute regulatory protein and is the rate-limiting step of steroid synthesis. The layers of the adrenal gland differ by function, with each layer having distinct enzymes that produce different hormones from a common precursor. The first enzymatic step in the production of all steroid hormones is cleavage of the cholesterol side chain, a reaction that forms pregnenolone as a product and is catalyzed by the enzyme P450scc, also known as cholesterol desmolase. After the production of pregnenolone, specific enzymes of each cortical layer further modify it. Enzymes involved in this process include both mitochondrial and microsomal P450s and hydroxysteroid dehydrogenases. Usually a number of intermediate steps in which pregnenolone is modified several times are required to form the functional hormones. Enzymes that catalyze reactions in these metabolic pathways are involved in a number of endocrine diseases. For example, the most common form of congenital adrenal hyperplasia develops as a result of deficiency of 21-hydroxylase, an enzyme involved in an intermediate step of cortisol production. Regulation Glucocorticoids are under the regulatory influence of the hypothalamus-pituitary-adrenal (HPA) axis. Glucocorticoid synthesis is stimulated by adrenocorticotropic hormone (ACTH), a hormone released into the bloodstream by the anterior pituitary. In turn, production of ACTH is stimulated by the presence of corticotropin-releasing hormone (CRH), which is released by neurons of the hypothalamus. ACTH acts on the adrenal cells first by increasing the levels of StAR within the cells, and then of all steroidogenic P450 enzymes. The HPA axis is an example of a negative feedback system, in which cortisol itself acts as a direct inhibitor of both CRH and ACTH synthesis. The HPA axis also interacts with the immune system through increased secretion of ACTH at the presence of certain molecules of the inflammatory response. Mineralocorticoid secretion is regulated mainly by the renin–angiotensin–aldosterone system (RAAS), the concentration of potassium, and to a lesser extent the concentration of ACTH. Sensors of blood pressure in the juxtaglomerular apparatus of the kidneys release the enzyme renin into the blood, which starts a cascade of reactions that lead to formation of angiotensin II. Angiotensin receptors in cells of the zona glomerulosa recognize the substance, and upon binding they stimulate the release of aldosterone. Androgens Cells in zona reticularis of the adrenal glands produce male sex hormones, or androgens, the most important of which is DHEA. In general, these hormones do not have an overall effect in the male body, and are converted to more potent androgens such as testosterone and DHT or to estrogens (female sex hormones) in the gonads, acting in this way as a metabolic intermediate. Catecholamines Primarily referred to in the United States as epinephrine and norepinephrine, adrenaline and noradrenaline are catecholamines, water-soluble compounds that have a structure made of a catechol group and an amine group. The adrenal glands are responsible for most of the adrenaline that circulates in the body, but only for a small amount of circulating noradrenaline. These hormones are released by the adrenal medulla, which contains a dense network of blood vessels. Adrenaline and noradrenaline act as adrenoreceptors throughout the body, with effects that include an increase in blood pressure and heart rate. Actions of adrenaline and noradrenaline are responsible for the fight or flight response, characterised by a quickening of breathing and heart rate, an increase in blood pressure, and constriction of blood vessels in many parts of the body. Formation Catecholamines are produced in chromaffin cells in the medulla of the adrenal gland, from tyrosine, a non-essential amino acid derived from food or produced from phenylalanine in the liver. The enzyme tyrosine hydroxylase converts tyrosine to L-DOPA in the first step of catecholamine synthesis. L-DOPA is then converted to dopamine before it can be turned into noradrenaline. In the cytosol, noradrenaline is converted to epinephrine by the enzyme phenylethanolamine N-methyltransferase (PNMT) and stored in granules. Glucocorticoids produced in the adrenal cortex stimulate the synthesis of catecholamines by increasing the levels of tyrosine hydroxylase and PNMT. Catecholamine release is stimulated by the activation of the sympathetic nervous system. Splanchnic nerves of the sympathetic nervous system innervate the medulla of the adrenal gland. When activated, it evokes the release of catecholamines from the storage granules by stimulating the opening of calcium channels in the cell membrane. Gene and protein expression The human genome includes approximately 20,000 protein coding genes and 70% of these genes are expressed in the normal adult adrenal glands. Only some 250 genes are more specifically expressed in the adrenal glands compared to other organs and tissues. The adrenal-gland-specific genes with the highest level of expression include members of the cytochrome P450 superfamily of enzymes. Corresponding proteins are expressed in the different compartments of the adrenal gland, such as CYP11A1, HSD3B2 and FDX1 involved in steroid hormone synthesis and expressed in cortical cell layers, and PNMT and DBH involved in noradrenaline and adrenaline synthesis and expressed in the medulla. Development The adrenal glands are composed of two heterogenous types of tissue. In the center is the adrenal medulla, which produces adrenaline and noradrenaline and releases them into the bloodstream, as part of the sympathetic nervous system. Surrounding the medulla is the cortex, which produces a variety of steroid hormones. These tissues come from different embryological precursors and have distinct prenatal development paths. The cortex of the adrenal gland is derived from mesoderm, whereas the medulla is derived from the neural crest, which is of ectodermal origin. The adrenal glands in a newborn baby are much larger as a proportion of the body size than in an adult. For example, at age three months the glands are four times the size of the kidneys. The size of the glands decreases relatively after birth, mainly because of shrinkage of the cortex. The cortex, which almost completely disappears by age 1, develops again from age 4–5. The glands weigh about 1 g at birth and develop to an adult weight of about 4 grams each. In a fetus the glands are first detectable after the sixth week of development. Cortex Adrenal cortex tissue is derived from the intermediate mesoderm. It first appears 33 days after fertilisation, shows steroid hormone production capabilities by the eighth week and undergoes rapid growth during the first trimester of pregnancy. The fetal adrenal cortex is different from its adult counterpart, as it is composed of two distinct zones:

or synthesis. Cells that produce steroid hormones can acquire cholesterol through two paths. The main source is through dietary cholesterol transported via the blood as cholesterol esters within low density lipoproteins (LDL). LDL enters the cells through receptor-mediated endocytosis. The other source of cholesterol is synthesis in the cell's endoplasmic reticulum. Synthesis can compensate when LDL levels are abnormally low. In the lysosome, cholesterol esters are converted to free cholesterol, which is then used for steroidogenesis or stored in the cell. The initial part of conversion of cholesterol into steroid hormones involves a number of enzymes of the cytochrome P450 family that are located in the inner membrane of mitochondria. Transport of cholesterol from the outer to the inner membrane is facilitated by steroidogenic acute regulatory protein and is the rate-limiting step of steroid synthesis. The layers of the adrenal gland differ by function, with each layer having distinct enzymes that produce different hormones from a common precursor. The first enzymatic step in the production of all steroid hormones is cleavage of the cholesterol side chain, a reaction that forms pregnenolone as a product and is catalyzed by the enzyme P450scc, also known as cholesterol desmolase. After the production of pregnenolone, specific enzymes of each cortical layer further modify it. Enzymes involved in this process include both mitochondrial and microsomal P450s and hydroxysteroid dehydrogenases. Usually a number of intermediate steps in which pregnenolone is modified several times are required to form the functional hormones. Enzymes that catalyze reactions in these metabolic pathways are involved in a number of endocrine diseases. For example, the most common form of congenital adrenal hyperplasia develops as a result of deficiency of 21-hydroxylase, an enzyme involved in an intermediate step of cortisol production. Regulation Glucocorticoids are under the regulatory influence of the hypothalamus-pituitary-adrenal (HPA) axis. Glucocorticoid synthesis is stimulated by adrenocorticotropic hormone (ACTH), a hormone released into the bloodstream by the anterior pituitary. In turn, production of ACTH is stimulated by the presence of corticotropin-releasing hormone (CRH), which is released by neurons of the hypothalamus. ACTH acts on the adrenal cells first by increasing the levels of StAR within the cells, and then of all steroidogenic P450 enzymes. The HPA axis is an example of a negative feedback system, in which cortisol itself acts as a direct inhibitor of both CRH and ACTH synthesis. The HPA axis also interacts with the immune system through increased secretion of ACTH at the presence of certain molecules of the inflammatory response. Mineralocorticoid secretion is regulated mainly by the renin–angiotensin–aldosterone system (RAAS), the concentration of potassium, and to a lesser extent the concentration of ACTH. Sensors of blood pressure in the juxtaglomerular apparatus of the kidneys release the enzyme renin into the blood, which starts a cascade of reactions that lead to formation of angiotensin II. Angiotensin receptors in cells of the zona glomerulosa recognize the substance, and upon binding they stimulate the release of aldosterone. Androgens Cells in zona reticularis of the adrenal glands produce male sex hormones, or androgens, the most important of which is DHEA. In general, these hormones do not have an overall effect in the male body, and are converted to more potent androgens such as testosterone and DHT or to estrogens (female sex hormones) in the gonads, acting in this way as a metabolic intermediate. Catecholamines Primarily referred to in the United States as epinephrine and norepinephrine, adrenaline and noradrenaline are catecholamines, water-soluble compounds that have a structure made of a catechol group and an amine group. The adrenal glands are responsible for most of the adrenaline that circulates in the body, but only for a small amount of circulating noradrenaline. These hormones are released by the adrenal medulla, which contains a dense network of blood vessels. Adrenaline and noradrenaline act as adrenoreceptors throughout the body, with effects that include an increase in blood pressure and heart rate. Actions of adrenaline and noradrenaline are responsible for the fight or flight response, characterised by a quickening of breathing and heart rate, an increase in blood pressure, and constriction of blood vessels in many parts of the body. Formation Catecholamines are produced in chromaffin cells in the medulla of the adrenal gland, from tyrosine, a non-essential amino acid derived from food or produced from phenylalanine in the liver. The enzyme tyrosine hydroxylase converts tyrosine to L-DOPA in the first step of catecholamine synthesis. L-DOPA is then converted to dopamine before it can be turned into noradrenaline. In the cytosol, noradrenaline is converted to epinephrine by the enzyme phenylethanolamine N-methyltransferase (PNMT) and stored in granules. Glucocorticoids produced in the adrenal cortex stimulate the synthesis of catecholamines by increasing the levels of tyrosine hydroxylase and PNMT. Catecholamine release is stimulated by the activation of the sympathetic nervous system. Splanchnic nerves of the sympathetic nervous system innervate the medulla of the adrenal gland. When activated, it evokes the release of catecholamines from the storage granules by stimulating the opening of calcium channels in the cell membrane. Gene and protein expression The human genome includes approximately 20,000 protein coding genes and 70% of these genes are expressed in the normal adult adrenal glands. Only some 250 genes are more specifically expressed in the adrenal glands compared to other organs and tissues. The adrenal-gland-specific genes with the highest level of expression include members of the cytochrome P450 superfamily of enzymes. Corresponding proteins are expressed in the different compartments of the adrenal gland, such as CYP11A1, HSD3B2 and FDX1 involved in steroid hormone synthesis and expressed in cortical cell layers, and PNMT and DBH involved in noradrenaline and adrenaline synthesis and expressed in the medulla. Development The adrenal glands are composed of two heterogenous types of tissue. In the center is the adrenal medulla, which produces adrenaline and noradrenaline and releases them into the bloodstream, as part of the sympathetic nervous system. Surrounding the medulla is the cortex, which produces a variety of steroid hormones. These tissues come from different embryological precursors and have distinct prenatal development paths. The cortex of the adrenal gland is derived from mesoderm, whereas the medulla is derived from the neural crest, which is of ectodermal origin. The adrenal glands in a newborn baby are much larger as a proportion of the body size than in an adult. For example, at age three months the glands are four times the size of the kidneys. The size of the glands decreases relatively after birth, mainly because of shrinkage of the cortex. The cortex, which almost completely disappears by age 1, develops again from age 4–5. The glands weigh about 1 g at birth and develop to an adult weight of about 4 grams each. In a fetus the glands are first detectable after the sixth week of development. Cortex Adrenal cortex tissue is derived from the intermediate mesoderm. It first appears 33 days after fertilisation, shows steroid hormone production capabilities by the eighth week and undergoes rapid growth during the first

and books based in New York City. Originally affiliated with only the National Enquirer, the media company's holdings expanded considerably in the 1990s and 2000s. In November 2010, American Media filed for Chapter 11 bankruptcy protection due to debts of nearly $1 billion, but has continued to buy and sell magazine brands since then. AMI has been in the news affiliated with accusations of catch and kill operations. On December 12, 2018, the U.S. Attorney's Office reported that AMI admitted to paying $150,000 to Karen McDougal in concert with a candidate's presidential campaign for the sole purpose of preventing damaging allegations prior to the 2016 US presidential election. According to its September 2018 non-prosecution agreement with Southern District of New York federal prosecutors, AMI "shall commit no crimes whatsoever" for three years, otherwise "A.M.I. shall thereafter be subject to prosecution for any federal criminal violation of which this office has knowledge." On April 10, 2019, Chatham Asset Management, which controls 80 percent of AMI's stock, forced AMI to sell the National Enquirer. This came after Chatham owner Anthony Melchiorre, who AMI has also relied on for survival, expressed dismay over the tabloid magazine's recent scandals involving hush money assistance to U.S. President Donald Trump's 2016 campaign and blackmail of Jeff Bezos. On April 18, 2019, AMI agreed to sell not only the National Enquirer, but two of its other publications, Globe and National Examiner, to Hudson News Distributors. In August 2020, Chatham Asset Management, AMI's owning holding company, announced it would merge AMI with Accelerate 360, a wholesale distribution company it also owned. As part of the merger, AMI was officially renamed A360 on October 1. History The modern American Media came into being after Generoso Pope Jr., longtime owner of the National Enquirer, died in 1988, and his tabloids came under new ownership. American tabloids began consolidating in 1990, when American Media bought Star from Rupert Murdoch. The purchase of Globe Communications (owner of the Globe and the National Examiner) followed nine years later. Roger Altman, through Evercore Partners, bought a controlling stake in American Media in 1999. American Media is not to be confused with American Media Distribution, the international news coverage firm. American Media's former corporate headquarters in Boca Raton, Florida, figured prominently in news headlines in late 2001, after an anthrax attack was perpetrated on the company and other media outlets. Since then the corporate headquarters have moved to New York City at 1 Park Avenue in Manhattan, before moving to the Financial District to the former JP Morgan Chase headquarters at 4 New York Plaza. That building was severely damaged by Hurricane Sandy but reopened in February 2013. AMI continued to expand after it bought Joe Weider's Weider Publications in 2002. Joe Weider continued to manage control of his magazines under AMI's Weider Publications subsidiary until his death in March 2013. American Media also owns Distribution Services, an in-store magazine merchandising company. In fall 2002, it launched the book-publishing imprint, AMI Books. 2010s: Bankruptcy and continued acquisitions In 2009, American Media was taken over by its bondholders to keep it out of bankruptcy. In November 2010, American Media filed for Chapter 11 bankruptcy protection due to nearly $1 billion in debt, and assets of less than $50,000. Its subsidiary, American Media Operations Inc., listed assets of $100 to $500 million and debt of over $1 billion. It exited in December. In May 2014, American Media announced a decision to shift the headquarters of the National Enquirer from Florida, where it had been located since 1971, back to New York City, where it originally began as The New York Enquirer in 1926. In August 2014, American Media was acquired by Chatham Asset Management and Omega Charitable Partnership. In 2015, American Media sold Shape, Natural Health, and Fit Pregnancy to Meredith. In 2016, Pecker revealed to the Toronto Star that AMI now relied on support from Chatham Asset Management and its owner Anthony Melchiorre. The $4 billion hedge fund owns 80 percent of AMI's stock. In March 2017, American Media acquired Us Weekly from Wenner Media for a reported $100 million. Three months later, in June 2017, American Media also acquired Men's Journal from Wenner Media. In June 2018, American Media acquired 13 brands from Bauer Media Group including In Touch Weekly, Life & Style and Closer to add to their celebrity portfolio. They also acquired Bauer Media's kids group including J-14 and Girl's World. In February 2019, American Media acquired TEN's adventure sports properties. In April 2019, the National Enquirer was reported to be up for sale and likely to be sold

other publications, Globe and National Examiner, to Hudson News Distributors. In August 2020, Chatham Asset Management, AMI's owning holding company, announced it would merge AMI with Accelerate 360, a wholesale distribution company it also owned. As part of the merger, AMI was officially renamed A360 on October 1. History The modern American Media came into being after Generoso Pope Jr., longtime owner of the National Enquirer, died in 1988, and his tabloids came under new ownership. American tabloids began consolidating in 1990, when American Media bought Star from Rupert Murdoch. The purchase of Globe Communications (owner of the Globe and the National Examiner) followed nine years later. Roger Altman, through Evercore Partners, bought a controlling stake in American Media in 1999. American Media is not to be confused with American Media Distribution, the international news coverage firm. American Media's former corporate headquarters in Boca Raton, Florida, figured prominently in news headlines in late 2001, after an anthrax attack was perpetrated on the company and other media outlets. Since then the corporate headquarters have moved to New York City at 1 Park Avenue in Manhattan, before moving to the Financial District to the former JP Morgan Chase headquarters at 4 New York Plaza. That building was severely damaged by Hurricane Sandy but reopened in February 2013. AMI continued to expand after it bought Joe Weider's Weider Publications in 2002. Joe Weider continued to manage control of his magazines under AMI's Weider Publications subsidiary until his death in March 2013. American Media also owns Distribution Services, an in-store magazine merchandising company. In fall 2002, it launched the book-publishing imprint, AMI Books. 2010s: Bankruptcy and continued acquisitions In 2009, American Media was taken over by its bondholders to keep it out of bankruptcy. In November 2010, American Media filed for Chapter 11 bankruptcy protection due to nearly $1 billion in debt, and assets of less than $50,000. Its subsidiary, American Media Operations Inc., listed assets of $100 to $500 million and debt of over $1 billion. It exited in December. In May 2014, American Media announced a decision to shift the headquarters of the National Enquirer from Florida, where it had been located since 1971, back to New York City, where it originally began as The New York Enquirer in 1926. In August 2014, American Media was acquired by Chatham Asset Management and Omega Charitable Partnership. In 2015, American Media sold Shape, Natural Health, and Fit Pregnancy to Meredith. In 2016, Pecker revealed to the Toronto Star that AMI now relied on support from Chatham Asset Management and its owner Anthony Melchiorre. The $4 billion hedge fund owns 80 percent of AMI's stock. In March 2017, American Media acquired Us Weekly from Wenner Media for a reported $100 million. Three months later, in June 2017, American Media also acquired Men's Journal from Wenner Media. In June 2018, American Media acquired 13 brands from Bauer Media Group including In Touch Weekly, Life & Style and Closer to add to their celebrity portfolio. They also acquired Bauer Media's kids group including J-14 and Girl's World. In February 2019, American Media acquired TEN's adventure sports properties. In April 2019, the National Enquirer was reported to be up for sale and likely to be sold within days. The company stated that it had shifted its emphasis away from tabloids to its "glossy" magazines such as Us Weekly and Men's Journal. This came following pressure from Chatham owner Anthony Melchiorre, who expressed disapproval of the Enquirer's style of journalism. On April 18, 2019, AMI accepted an offer from Hudson News Distributors head James Cohen and agreed to sell not only the National Enquirer, but also Globe and The Examiner to Hudson News Distributors for $100 million. At the time the sales were announced, AMI was approximately $355 million in debt. "Catch-and-kill" scandals related to Donald Trump In late 2015, AMI paid $30,000 to Dino Sajudin, a doorman at Trump Tower, to obtain the rights to his story in which he alleged Donald Trump had an affair in the 1980s that resulted in the birth of a child. Sajudin in April 2018 identified the woman as Trump's former

then reworked according to the contemporary dialect of Babylon to create the language of the standard targums. This combination formed the basis of Babylonian Jewish literature for centuries to follow. Galilean Targumic is similar to Babylonian Targumic. It is the mixing of literary Hasmonaean with the dialect of Galilee. The Hasmonaean targums reached Galilee in the 2nd century AD, and were reworked into this Galilean dialect for local use. The Galilean Targum was not considered an authoritative work by other communities, and documentary evidence shows that its text was amended. From the 11th century AD onwards, once the Babylonian Targum had become normative, the Galilean version became heavily influenced by it. Babylonian Documentary Aramaic is a dialect in use from the 3rd century AD onwards. It is the dialect of Babylonian private documents, and, from the 12th century, all Jewish private documents are in Aramaic. It is based on Hasmonaean with very few changes. This was perhaps because many of the documents in BDA are legal documents, the language in them had to be sensible throughout the Jewish community from the start, and Hasmonaean was the old standard. Nabataean Aramaic was the written language of the Arab kingdom of Nabataea, whose capital was Petra. The kingdom (c. 200 BC – 106 AD) controlled the region to the east of the Jordan River, the Negev, the Sinai Peninsula and the northern Hijaz, and supported a wide-ranging trade network. The Nabataeans used imperial Aramaic for written communications, rather than their native Arabic. Nabataean Aramaic developed from Imperial Aramaic, with some influence from Arabic: "l" is often turned into "n", and there are some Arabic loanwords. Arabic influence on Nabataean Aramaic increased over time. Some Nabataean Aramaic inscriptions date from the early days of the kingdom, but most datable inscriptions are from the first four centuries AD. The language is written in a cursive script which was the precursor to the Arabic alphabet. After annexation by the Romans in 106 AD, most of Nabataea was subsumed into the province of Arabia Petraea, the Nabataeans turned to Greek for written communications, and the use of Aramaic declined. Palmyrene Aramaic is the dialect that was in use in the Syriac city state of Palmyra in the Syrian Desert from 44 BC to 274 AD. It was written in a rounded script, which later gave way to cursive Estrangela. Like Nabataean, Palmyrene was influenced by Arabic, but to a much lesser degree. The use of written Aramaic in the Achaemenid bureaucracy also precipitated the adoption of Aramaic(-derived) scripts to render a number of Middle Iranian languages. Moreover, many common words, including even pronouns, particles, numerals, and auxiliaries, continued to written as Aramaic "words" even when writing Middle Iranian languages. In time, in Iranian usage, these Aramaic "words" became disassociated from the Aramaic language and came to be understood as signs (i.e. logograms), much like the symbol '&' is read as "and" in English and the original Latin et is now no longer obvious. Under the early 3rd-century BC Parthians Arsacids, whose government used Greek but whose native language was Parthian, the Parthian language and its Aramaic-derived writing system both gained prestige. This in turn also led to the adoption of the name 'pahlavi' (< parthawi, "of the Parthians") for that writing system. The Persian Sassanids, who succeeded the Parthian Arsacids in the mid-3rd century AD, subsequently inherited/adopted the Parthian-mediated Aramaic-derived writing system for their own Middle Iranian ethnolect as well. That particular Middle Iranian dialect, Middle Persian, i.e. the language of Persia proper, subsequently also became a prestige language. Following the conquest of the Sassanids by the Arabs in the 7th-century, the Aramaic-derived writing system was replaced by Arabic script in all but Zoroastrian usage, which continued to use the name 'pahlavi' for the Aramaic-derived writing system and went on to create the bulk of all Middle Iranian literature in that writing system. Other dialects of the Post-Achaemenid period The dialects mentioned in the previous section were all descended from Achaemenid Aramaic. However, some other regional dialects also continued to exist alongside these, often as simple, spoken variants of Aramaic. Early evidence for these vernacular dialects is known only through their influence on words and names in a more standard dialect. However, some of those regional dialects became written languages by the 2nd century BC. These dialects reflect a stream of Aramaic that is not directly dependent on Achaemenid Aramaic, and they also show a clear linguistic diversity between eastern and western regions. Eastern dialects of the Post-Achaemenid period In the eastern regions (from Mesopotamia to Persia), dialects like Palmyrene Aramaic and Arsacid Aramaic gradually merged with the regional vernacular dialects, thus creating languages with a foot in Achaemenid and a foot in regional Aramaic. In the Kingdom of Osroene, founded in 132 BCE and centred in Edessa (Urhay), the regional dialect became the official language: Edessan Aramaic (Urhaya), that later came to be known as Classical Syriac. On the upper reaches of the Tigris, East Mesopotamian Aramaic flourished, with evidence from the regions of Hatra (Hatran Aramaic) and Assur (Assurian Aramaic). Tatian, the author of the gospel harmony the Diatessaron came from Assyria, and perhaps wrote his work (172 AD) in East Mesopotamian rather than Syriac or Greek. In Babylonia, the regional dialect was used by the Jewish community, Jewish Old Babylonian (from c. 70 AD). This everyday language increasingly came under the influence of Biblical Aramaic and Babylonian Targumic. The written form of Mandaic, the language of the Mandaean religion, was descended from the Arsacid chancery script. Western dialects of the Post-Achaemenid period The western regional dialects of Aramaic followed a similar course to those of the east. They are quite distinct from the eastern dialects and Imperial Aramaic. Aramaic came to coexist with Canaanite dialects, eventually completely displacing Phoenician in the first century BC and Hebrew around the turn of the fourth century AD. The form of Late Old Western Aramaic used by the Jewish community is best attested, and is usually referred to as Jewish Old Palestinian. Its oldest form is Old East Jordanian, which probably comes from the region of Caesarea Philippi. This is the dialect of the oldest manuscript of the Book of Enoch (c. 170 BC). The next distinct phase of the language is called Old Judaean lasting into the second century AD. Old Judean literature can be found in various inscriptions and personal letters, preserved quotations in the Talmud and receipts from Qumran. Josephus' first, non-extant edition of his The Jewish War was written in Old Judean. The Old East Jordanian dialect continued to be used into the first century AD by pagan communities living to the east of the Jordan. Their dialect is often then called Pagan Old Palestinian, and it was written in a cursive script somewhat similar to that used for Old Syriac. A Christian Old Palestinian dialect may have arisen from the pagan one, and this dialect may be behind some of the Western Aramaic tendencies found in the otherwise eastern Old Syriac gospels (see Peshitta). Languages during Jesus' lifetime It is generally believed by Christian scholars that in the first century, Jews in Judea primarily spoke Aramaic with a decreasing number using Hebrew as their first language, though many learned Hebrew as a liturgical language. Additionally, Koine Greek was the lingua franca of the Near East in trade, among the Hellenized classes (much like French in the 18th, 19th and 20th centuries in Europe), and in the Roman administration. Latin, the language of the Roman army and higher levels of administration, had almost no impact on the linguistic landscape. In addition to the formal, literary dialects of Aramaic based on Hasmonean and Babylonian, there were a number of colloquial Aramaic dialects. Seven Western Aramaic varieties were spoken in the vicinity of Judea in Jesus' time. They were probably distinctive yet mutually intelligible. Old Judean was the prominent dialect of Jerusalem and Judaea. The region of Ein Gedi spoke the Southeast Judaean dialect. Samaria had its distinctive Samaritan Aramaic, where the consonants "he", "" and "‘ayin" all became pronounced as "aleph". Galilean Aramaic, the dialect of Jesus' home region, is only known from a few place names, the influences on Galilean Targumic, some rabbinic literature and a few private letters. It seems to have a number of distinctive features: diphthongs are never simplified into monophthongs. East of the Jordan, the various dialects of East Jordanian were spoken. In the region of Damascus and the Anti-Lebanon Mountains, Damascene Aramaic was spoken (deduced mostly from Modern Western Aramaic). Finally, as far north as Aleppo, the western dialect of Orontes Aramaic was spoken. The three languages, especially Hebrew and Aramaic, influenced one another through loanwords and semantic loans. Hebrew words entered Jewish Aramaic. Most were mostly technical religious words, but a few were everyday words like עץ "wood". Conversely, Aramaic words, such as māmmôn "wealth", were borrowed into Hebrew, and Hebrew words acquired additional senses from Aramaic. For instance, Hebrew ראוי rā’ûi "seen" borrowed the sense "worthy, seemly" from the Aramaic meaning "seen" and "worthy". The Greek of the New Testament preserves some semiticisms, including transliterations of Semitic words. Some are Aramaic, like talitha (ταλιθα), which represents the noun טליתא , and others may be either Hebrew or Aramaic like רבוני Rabbounei (Ραββουνει), which means "my master/great one/teacher" in both languages. Other examples: "Talitha kumi" (טליתא קומי) "Ephphatha" (אתפתח) "Eloi, Eloi, lama sabachthani?" (אלי, אלי, למה שבקתני?) The 2004 film The Passion of the Christ used Aramaic for much of its dialogue, specially reconstructed by a scholar, William Fulco, S.J. Where the appropriate words (in first-century Aramaic) were no longer known, he used the Aramaic of Daniel and fourth-century Syriac and Hebrew as the basis for his work. Middle Aramaic The 3rd century AD is taken as the threshold between Old and Middle Aramaic. During that century, the nature of the various Aramaic languages and dialects began to change. The descendants of Imperial Aramaic ceased to be living languages, and the eastern and western regional languages began to develop vital new literatures. Unlike many of the dialects of Old Aramaic, much is known about the vocabulary and grammar of Middle Aramaic. Eastern Middle Aramaic Only two of the Old Eastern Aramaic languages continued into this period. In the north of the region, Old Syriac transitioned into Middle Syriac. In the south, Jewish Old Babylonian became Jewish Middle Babylonian. The post-Achaemenid, Arsacid dialect became the background of the new Mandaic language. Syriac Aramaic Syriac Aramaic (also "Classical Syriac") is the literary, liturgical and often spoken language of Syriac Christianity. It originated by the first century AD in the region of Osroene, centered in Edessa, but its golden age was the fourth to eight centuries. This period began with the translation of the Bible into the language: the Peshitta, and the masterful prose and poetry of Ephrem the Syrian. Classical Syriac became the language of the Church of the East, and the Syriac Orthodox Church. Missionary activity led to the spread of Syriac from Mesopotamia and Persia, into Central Asia, India and China. Jewish Babylonian Aramaic Jewish Middle Babylonian is the language employed by Jewish writers in Babylonia between the fourth and the eleventh century. It is most commonly identified with the language of the Babylonian Talmud (which was completed in the seventh century) and of post-Talmudic Geonic literature, which are the most important cultural products of Babylonian Judaism. The most important epigraphic sources for the dialect are the hundreds of incantation bowls written in Jewish Babylonian Aramaic. Mandaic Aramaic The Mandaic language, spoken by the Mandaeans of Iraq, is a sister dialect to Jewish Babylonian Aramaic, though it is both linguistically and culturally distinct. Classical Mandaic is the language in which the Mandaeans' gnostic religious literature was composed. It is characterized by a highly phonetic orthography. Western Middle Aramaic The dialects of Old Western Aramaic continued with Jewish Middle Palestinian (in Hebrew "square script"), Samaritan Aramaic (in the old Hebrew script) and Christian Palestinian (in cursive Syriac script). Of these three, only Jewish Middle Palestinian continued as a written language. Samaritan Aramaic The Samaritan Aramaic is earliest attested by the documentary tradition of the Samaritans that can be dated back to the fourth century. Its modern pronunciation is based on the form used in the tenth century. Jewish Palestinian Aramaic In 135, after the Bar Kokhba revolt, many Jewish leaders, expelled from Jerusalem, moved to Galilee. The Galilean dialect thus rose from obscurity to become the standard among Jews in the west. This dialect was spoken not only in Galilee, but also in the surrounding parts. It is the linguistic setting for the Jerusalem Talmud (completed in the 5th century), Palestinian targumim (Jewish Aramaic versions of scripture), and midrashim (biblical commentaries and teaching). The standard vowel pointing for the Hebrew Bible, the Tiberian system (7th century), was developed by speakers of the Galilean dialect of Jewish Middle Palestinian. Classical Hebrew vocalisation, therefore, in representing the Hebrew of this period, probably reflects the contemporary pronunciation of this Aramaic dialect. Middle Judaean Aramaic, the descendant of Old Judaean Aramaic, was no longer the dominant dialect, and was used only in southern Judaea (the variant Engedi dialect continued throughout this period). Likewise, Middle East Jordanian Aramaic continued as a minor dialect from Old East Jordanian Aramaic. The inscriptions in the synagogue at Dura-Europos are either in Middle East Jordanian or Middle Judaean. Christian Palestinian Aramaic This was the language of the Christian Melkite (Chalcedonian) community from the 5th to the 8th century. As a liturgical language, it was used up to the 13th century. It is also been called "Melkite Aramaic" and "Palestinian Syriac". The language itself comes from Old Christian Palestinian Aramaic, but its writing conventions were based on early Middle Syriac, and it was heavily influenced by Greek. For example, the name Jesus, although ישוע Yešua’ in Jewish Aramaic, and Išo in Syriac, is written Yesûs (a transliteration of the Greek form) in Christian Palestinian. Modern Aramaic As the Western Aramaic languages of the Levant and Lebanon have become nearly extinct in non-liturgical usage, the most prolific speakers of Aramaic dialects today are predominantly ethnic Assyrian Eastern Neo-Aramaic speakers, the most numerous being the Northeastern Neo-Aramaic speakers of Mesopotamia. This includes speakers of Assyrian Neo-Aramaic (235,000 speakers), Chaldean Neo-Aramaic (216,000 speakers), and Turoyo (Surayt) (112,000 to 450,000 speakers). Having largely lived in remote areas as insulated communities for over a millennium, the remaining speakers of modern Aramaic dialects, such as the Assyrians, and the Arameans, escaped the linguistic pressures experienced by others during the large-scale language shifts that saw the proliferation of other tongues among those who previously did not speak them, most recently the Arabization of the Middle East and North Africa by Arabs beginning with the early Muslim conquests of the seventh century. Modern Eastern Aramaic Modern Eastern Aramaic exists in a wide variety of dialects and languages. There is significant difference between the Aramaic spoken by Christians, Jews, and Mandaeans. The Christian varieties are often called Modern Syriac (or Neo-Syriac, particularly when referring to their literature), being deeply influenced by the old literary and liturgical language, the Classical Syriac. However, they also have roots in numerous, previously unwritten, local Aramaic varieties, and are not purely the direct descendants of the language of Ephrem the Syrian. The varieties are not all mutually intelligible. The principal Christian varieties are Assyrian Neo-Aramaic and Chaldean Neo-Aramaic, both belonging to the group of Northeastern Neo-Aramaic languages. The Judeo-Aramaic languages are now mostly spoken in Israel, and most are facing extinction. The Jewish varieties that have come from communities that once lived between Lake Urmia and Mosul are not all mutually intelligible. In some places, for example Urmia, Assyrian Christians and Jews speak mutually unintelligible varieties of Modern Eastern Aramaic in the same place. In others, the Nineveh Plains around Mosul for example, the varieties of these two ethnic communities are similar enough to allow conversation. Modern Central Neo-Aramaic, being in between Western Neo-Aramaic and Eastern Neo-Aramaic) is generally represented by Turoyo, the language of the Assyrians of Tur Abdin. A related language, Mlahsô, has recently become extinct. Mandaeans living in the Khuzestan Province of Iran and scattered throughout Iraq, speak Modern Mandaic. It is quite distinct from any other Aramaic variety. Mandaic numbers some 50,000–75,000 people, but it is believed the Mandaic language may now be spoken fluently by as few as 5,000 people, with other Mandaeans having varying degrees of knowledge. Modern Western Aramaic Very little remains of Western Aramaic. Its only remaining vernacular is the Western Neo-Aramaic language, that is still spoken in the villages of Maaloula, al-Sarkha (Bakhah), and Jubb'adin on Syria's side of the Anti-Lebanon Mountains, as well as by some people who migrated from these villages, to Damascus and other larger towns of Syria. All these speakers of Modern Western Aramaic are fluent in Arabic as well. Other Western Aramaic languages, like Jewish Palestinian Aramaic and Samaritan Aramaic, are preserved only in liturgical and literary usage. Phonology Each dialect of Aramaic has its own distinctive pronunciation, and it would not be feasible here to go into all these properties. Aramaic has a phonological palette of 25 to 40 distinct phonemes. Some modern Aramaic pronunciations lack the series of "emphatic" consonants, and some have borrowed from the inventories of surrounding languages, particularly Arabic, Azerbaijani, Kurdish, Persian and Turkish. Vowels As with most Semitic languages, Aramaic can be thought of as having three basic sets of vowels: Open a-vowels Close front i-vowels Close back u-vowels These vowel groups are relatively stable, but the exact articulation of any individual is most dependent on its consonantal setting. The open vowel is an open near-front unrounded vowel ("short" a, somewhat like the first vowel in the English "batter", ). It usually has a back counterpart ("long" a, like the a in "father", , or even tending to the vowel in "caught", ), and a front counterpart ("short" e, like the vowel in "head", ). There is much correspondence between these vowels between dialects. There is some evidence that Middle Babylonian dialects did not distinguish between the short a and short e. In West Syriac dialects, and possibly Middle Galilean, the long a became the o sound. The open e and back a are often indicated in writing by the use of the letters א "alaph" (a glottal stop) or ה "he" (like the English h). The close front vowel is the "long" i (like the vowel in "need", ). It has a slightly more open counterpart, the "long" e, as in the final vowel of "café" (). Both of these have shorter counterparts, which tend to be pronounced slightly more open. Thus, the short close e corresponds with the open e in some dialects. The close front vowels usually use the consonant י y as a mater lectionis. The close back vowel is the "long" u (like the vowel in "school", ). It has a more open counterpart, the "long" o, like the vowel in "show" (). There are shorter, and thus more open, counterparts to each of these, with the short close o sometimes corresponding with the long open a. The close back vowels often use the consonant ו w to indicate their quality. Two basic diphthongs exist: an open vowel followed by י y (ay), and an open vowel followed by ו w (aw). These were originally full diphthongs, but many dialects have converted them to e and o respectively. The so-called "emphatic" consonants (see the next section) cause all vowels to become mid-centralised. Consonants The various alphabets used for writing Aramaic languages have twenty-two letters (all of which are consonants). Some of these letters, though, can stand for two or three different sounds (usually a stop and a fricative at the same point of articulation). Aramaic classically uses a series of lightly contrasted plosives and fricatives: Labial set: פּ\פ p/f and בּ\ב b/v, Dental set: תּ\ת t/θ and דּ\ד d/ð, Velar set: כּ\כ k/x and גּ\ג g/ɣ. Each member of a certain pair is written with the same letter of the alphabet in most writing systems (that is, p and f are written with the same letter), and are near allophones. A distinguishing feature of Aramaic phonology (and that of Semitic languages in general) is the presence of "emphatic" consonants. These are consonants that are pronounced with the root of the tongue retracted, with varying degrees of pharyngealization and velarization. Using their alphabetic names, these emphatics are: ח Ḥêṯ, a voiceless pharyngeal fricative, , ט Ṭêṯ, a pharyngealized t, , ע ʽAyin (or ʽE in some dialects), a pharyngealized glottal stop (sometimes considered to be a voiced pharyngeal approximant), or , צ Ṣāḏê, a pharyngealized s, , ק Qôp, a voiceless uvular stop, . Ancient Aramaic may have had a larger series of emphatics, and some Neo-Aramaic languages definitely do. Not all dialects of Aramaic give these consonants their historic values. Overlapping with the set of emphatics are the "guttural" consonants. They include ח Ḥêṯ and ע ʽAyn from the emphatic set, and add א ʼĀlap̄ (a glottal stop) and ה Hê (as the English "h"). Aramaic classically has a set of four sibilants (ancient Aramaic may have had six): ס, שׂ (as in English "sea"), ז (as in English "zero"), שׁ (as in English "ship"), צ (the emphatic Ṣāḏê listed above). In addition to these sets, Aramaic has the nasal consonants מ m and נ n, and the approximants ר r (usually an alveolar trill), ל l, י y and ו w. Historical sound changes Six broad features of sound change can be seen as dialect differentials: Vowel change occurs almost too frequently to document fully, but is a major distinctive feature of different dialects. Plosive/fricative pair reduction. Originally, Aramaic, like Tiberian Hebrew, had fricatives as conditioned allophones for each plosive. In the wake of vowel changes, the distinction eventually became phonemic; still later, it was often lost in certain dialects. For example, Turoyo has mostly lost , using instead, like Arabic; other dialects (for instance, standard Assyrian Neo-Aramaic) have lost and and replaced them with and , as with Modern Hebrew. In most dialects of Modern Syriac, and are realized as after a vowel. Loss of emphatics. Some dialects have replaced emphatic consonants with non-emphatic counterparts, while those spoken in the Caucasus often have glottalized rather than pharyngealized emphatics. Guttural assimilation is the main distinctive feature of Samaritan pronunciation, also found in Samaritan Hebrew: all the gutturals are reduced to a simple glottal stop. Some Modern Aramaic dialects do not pronounce h in all words (the third person masculine pronoun hu becomes ow). Proto-Semitic */θ/ */ð/ are reflected in Aramaic as */t/, */d/, whereas they became sibilants in Hebrew (the number three is שלוש šālôš in Hebrew but תלת tlāṯ in Aramaic, the word gold is זהב zahav in Hebrew but דהב dehav in Aramaic). Dental/sibilant shifts are still happening in the modern dialects. New phonetic inventory. Modern dialects have borrowed sounds from the dominant surrounding languages. The most frequent borrowings are (as the first consonant in "azure"), (as in "jam") and (as in "church"). The Syriac alphabet has been adapted for writing these new sounds. Grammar As with other Semitic languages, Aramaic morphology (the way words are formed) is based on the consonantal root. The root generally consists of two or three consonants and has a basic meaning, for example, כת״ב k-t-b has the meaning of 'writing'. This is then modified by the addition of vowels and other consonants to create different nuances of the basic meaning: כתבה kṯāḇâ, handwriting, inscription, script, book. כתבי kṯāḇê, books, the Scriptures. כתובה kāṯûḇâ, secretary, scribe. כתבת kiṯḇeṯ, I wrote. אכתב eḵtûḇ, I shall write. Nouns and adjectives Aramaic nouns and adjectives are inflected to show gender, number and state. Aramaic has two grammatical genders: masculine and feminine. The feminine absolute singular is often marked by the ending ה- -â. Nouns can be either singular or plural, but an additional "dual" number exists for nouns that usually come in pairs. The dual number gradually disappeared from Aramaic over time and has little influence in Middle and Modern Aramaic. Aramaic nouns and adjectives can exist in one of three states. To a certain extent, these states correspond to the role of articles and cases in the Indo-European languages: The absolute state is the basic form of a noun. In early forms of Aramaic, the absolute state expresses indefiniteness, comparable to the English indefinite article a(n) (for example, כתבה kṯāḇâ, "a handwriting"), and can be used in most syntactic roles. However, by the Middle Aramaic period, its use for nouns (but not adjectives) had been widely replaced by the emphatic state. The construct state is a form of the noun used to make possessive constructions (for example, כתבת מלכתא kṯāḇat' malkṯâ, "the handwriting of the queen"). In the masculine singular, the form of the construct is often the same as the absolute, but it may undergo vowel reduction in longer words. The feminine construct and masculine construct plural are marked by suffixes. Unlike a genitive case, which marks the possessor, the construct state is marked on the possessed. This is mainly due to Aramaic word order: possessed[const.] possessor[abs./emph.] are treated as a speech unit, with the first unit (possessed) employing the construct state to link it to the following word. In Middle Aramaic, the use of the construct state for all but stock phrases (like בר נשא bar nāšâ, "son of man") begins to disappear. The emphatic or determined state is an extended form of the noun that functions similarly to the definite article. It is marked with a suffix (for example, כתבתא kṯāḇtâ, "the handwriting"). Although its original grammatical function seems to have been to mark definiteness, it is used already in Imperial Aramaic to mark all important nouns, even if they should be considered technically indefinite. This practice developed to the extent that the absolute state became extraordinarily rare in later varieties of Aramaic. Whereas other Northwest Semitic languages, like Hebrew, have the absolute and construct states, the emphatic/determined state is a unique feature to Aramaic. Case endings, as in Ugaritic, probably existed in a very early stage of the language, and glimpses of them can be seen in a few compound proper names. However, as most of those cases were expressed by short final vowels, they were never written, and the few characteristic long vowels of the masculine plural accusative and genitive are not clearly evidenced in inscriptions. Often, the direct object is marked by a prefixed -ל l- (the preposition "to") if it is definite. Adjectives agree with their nouns in number and gender but agree in state only if used attributively. Predicative adjectives are in the absolute state regardless of

regional languages began to develop vital new literatures. Unlike many of the dialects of Old Aramaic, much is known about the vocabulary and grammar of Middle Aramaic. Eastern Middle Aramaic Only two of the Old Eastern Aramaic languages continued into this period. In the north of the region, Old Syriac transitioned into Middle Syriac. In the south, Jewish Old Babylonian became Jewish Middle Babylonian. The post-Achaemenid, Arsacid dialect became the background of the new Mandaic language. Syriac Aramaic Syriac Aramaic (also "Classical Syriac") is the literary, liturgical and often spoken language of Syriac Christianity. It originated by the first century AD in the region of Osroene, centered in Edessa, but its golden age was the fourth to eight centuries. This period began with the translation of the Bible into the language: the Peshitta, and the masterful prose and poetry of Ephrem the Syrian. Classical Syriac became the language of the Church of the East, and the Syriac Orthodox Church. Missionary activity led to the spread of Syriac from Mesopotamia and Persia, into Central Asia, India and China. Jewish Babylonian Aramaic Jewish Middle Babylonian is the language employed by Jewish writers in Babylonia between the fourth and the eleventh century. It is most commonly identified with the language of the Babylonian Talmud (which was completed in the seventh century) and of post-Talmudic Geonic literature, which are the most important cultural products of Babylonian Judaism. The most important epigraphic sources for the dialect are the hundreds of incantation bowls written in Jewish Babylonian Aramaic. Mandaic Aramaic The Mandaic language, spoken by the Mandaeans of Iraq, is a sister dialect to Jewish Babylonian Aramaic, though it is both linguistically and culturally distinct. Classical Mandaic is the language in which the Mandaeans' gnostic religious literature was composed. It is characterized by a highly phonetic orthography. Western Middle Aramaic The dialects of Old Western Aramaic continued with Jewish Middle Palestinian (in Hebrew "square script"), Samaritan Aramaic (in the old Hebrew script) and Christian Palestinian (in cursive Syriac script). Of these three, only Jewish Middle Palestinian continued as a written language. Samaritan Aramaic The Samaritan Aramaic is earliest attested by the documentary tradition of the Samaritans that can be dated back to the fourth century. Its modern pronunciation is based on the form used in the tenth century. Jewish Palestinian Aramaic In 135, after the Bar Kokhba revolt, many Jewish leaders, expelled from Jerusalem, moved to Galilee. The Galilean dialect thus rose from obscurity to become the standard among Jews in the west. This dialect was spoken not only in Galilee, but also in the surrounding parts. It is the linguistic setting for the Jerusalem Talmud (completed in the 5th century), Palestinian targumim (Jewish Aramaic versions of scripture), and midrashim (biblical commentaries and teaching). The standard vowel pointing for the Hebrew Bible, the Tiberian system (7th century), was developed by speakers of the Galilean dialect of Jewish Middle Palestinian. Classical Hebrew vocalisation, therefore, in representing the Hebrew of this period, probably reflects the contemporary pronunciation of this Aramaic dialect. Middle Judaean Aramaic, the descendant of Old Judaean Aramaic, was no longer the dominant dialect, and was used only in southern Judaea (the variant Engedi dialect continued throughout this period). Likewise, Middle East Jordanian Aramaic continued as a minor dialect from Old East Jordanian Aramaic. The inscriptions in the synagogue at Dura-Europos are either in Middle East Jordanian or Middle Judaean. Christian Palestinian Aramaic This was the language of the Christian Melkite (Chalcedonian) community from the 5th to the 8th century. As a liturgical language, it was used up to the 13th century. It is also been called "Melkite Aramaic" and "Palestinian Syriac". The language itself comes from Old Christian Palestinian Aramaic, but its writing conventions were based on early Middle Syriac, and it was heavily influenced by Greek. For example, the name Jesus, although ישוע Yešua’ in Jewish Aramaic, and Išo in Syriac, is written Yesûs (a transliteration of the Greek form) in Christian Palestinian. Modern Aramaic As the Western Aramaic languages of the Levant and Lebanon have become nearly extinct in non-liturgical usage, the most prolific speakers of Aramaic dialects today are predominantly ethnic Assyrian Eastern Neo-Aramaic speakers, the most numerous being the Northeastern Neo-Aramaic speakers of Mesopotamia. This includes speakers of Assyrian Neo-Aramaic (235,000 speakers), Chaldean Neo-Aramaic (216,000 speakers), and Turoyo (Surayt) (112,000 to 450,000 speakers). Having largely lived in remote areas as insulated communities for over a millennium, the remaining speakers of modern Aramaic dialects, such as the Assyrians, and the Arameans, escaped the linguistic pressures experienced by others during the large-scale language shifts that saw the proliferation of other tongues among those who previously did not speak them, most recently the Arabization of the Middle East and North Africa by Arabs beginning with the early Muslim conquests of the seventh century. Modern Eastern Aramaic Modern Eastern Aramaic exists in a wide variety of dialects and languages. There is significant difference between the Aramaic spoken by Christians, Jews, and Mandaeans. The Christian varieties are often called Modern Syriac (or Neo-Syriac, particularly when referring to their literature), being deeply influenced by the old literary and liturgical language, the Classical Syriac. However, they also have roots in numerous, previously unwritten, local Aramaic varieties, and are not purely the direct descendants of the language of Ephrem the Syrian. The varieties are not all mutually intelligible. The principal Christian varieties are Assyrian Neo-Aramaic and Chaldean Neo-Aramaic, both belonging to the group of Northeastern Neo-Aramaic languages. The Judeo-Aramaic languages are now mostly spoken in Israel, and most are facing extinction. The Jewish varieties that have come from communities that once lived between Lake Urmia and Mosul are not all mutually intelligible. In some places, for example Urmia, Assyrian Christians and Jews speak mutually unintelligible varieties of Modern Eastern Aramaic in the same place. In others, the Nineveh Plains around Mosul for example, the varieties of these two ethnic communities are similar enough to allow conversation. Modern Central Neo-Aramaic, being in between Western Neo-Aramaic and Eastern Neo-Aramaic) is generally represented by Turoyo, the language of the Assyrians of Tur Abdin. A related language, Mlahsô, has recently become extinct. Mandaeans living in the Khuzestan Province of Iran and scattered throughout Iraq, speak Modern Mandaic. It is quite distinct from any other Aramaic variety. Mandaic numbers some 50,000–75,000 people, but it is believed the Mandaic language may now be spoken fluently by as few as 5,000 people, with other Mandaeans having varying degrees of knowledge. Modern Western Aramaic Very little remains of Western Aramaic. Its only remaining vernacular is the Western Neo-Aramaic language, that is still spoken in the villages of Maaloula, al-Sarkha (Bakhah), and Jubb'adin on Syria's side of the Anti-Lebanon Mountains, as well as by some people who migrated from these villages, to Damascus and other larger towns of Syria. All these speakers of Modern Western Aramaic are fluent in Arabic as well. Other Western Aramaic languages, like Jewish Palestinian Aramaic and Samaritan Aramaic, are preserved only in liturgical and literary usage. Phonology Each dialect of Aramaic has its own distinctive pronunciation, and it would not be feasible here to go into all these properties. Aramaic has a phonological palette of 25 to 40 distinct phonemes. Some modern Aramaic pronunciations lack the series of "emphatic" consonants, and some have borrowed from the inventories of surrounding languages, particularly Arabic, Azerbaijani, Kurdish, Persian and Turkish. Vowels As with most Semitic languages, Aramaic can be thought of as having three basic sets of vowels: Open a-vowels Close front i-vowels Close back u-vowels These vowel groups are relatively stable, but the exact articulation of any individual is most dependent on its consonantal setting. The open vowel is an open near-front unrounded vowel ("short" a, somewhat like the first vowel in the English "batter", ). It usually has a back counterpart ("long" a, like the a in "father", , or even tending to the vowel in "caught", ), and a front counterpart ("short" e, like the vowel in "head", ). There is much correspondence between these vowels between dialects. There is some evidence that Middle Babylonian dialects did not distinguish between the short a and short e. In West Syriac dialects, and possibly Middle Galilean, the long a became the o sound. The open e and back a are often indicated in writing by the use of the letters א "alaph" (a glottal stop) or ה "he" (like the English h). The close front vowel is the "long" i (like the vowel in "need", ). It has a slightly more open counterpart, the "long" e, as in the final vowel of "café" (). Both of these have shorter counterparts, which tend to be pronounced slightly more open. Thus, the short close e corresponds with the open e in some dialects. The close front vowels usually use the consonant י y as a mater lectionis. The close back vowel is the "long" u (like the vowel in "school", ). It has a more open counterpart, the "long" o, like the vowel in "show" (). There are shorter, and thus more open, counterparts to each of these, with the short close o sometimes corresponding with the long open a. The close back vowels often use the consonant ו w to indicate their quality. Two basic diphthongs exist: an open vowel followed by י y (ay), and an open vowel followed by ו w (aw). These were originally full diphthongs, but many dialects have converted them to e and o respectively. The so-called "emphatic" consonants (see the next section) cause all vowels to become mid-centralised. Consonants The various alphabets used for writing Aramaic languages have twenty-two letters (all of which are consonants). Some of these letters, though, can stand for two or three different sounds (usually a stop and a fricative at the same point of articulation). Aramaic classically uses a series of lightly contrasted plosives and fricatives: Labial set: פּ\פ p/f and בּ\ב b/v, Dental set: תּ\ת t/θ and דּ\ד d/ð, Velar set: כּ\כ k/x and גּ\ג g/ɣ. Each member of a certain pair is written with the same letter of the alphabet in most writing systems (that is, p and f are written with the same letter), and are near allophones. A distinguishing feature of Aramaic phonology (and that of Semitic languages in general) is the presence of "emphatic" consonants. These are consonants that are pronounced with the root of the tongue retracted, with varying degrees of pharyngealization and velarization. Using their alphabetic names, these emphatics are: ח Ḥêṯ, a voiceless pharyngeal fricative, , ט Ṭêṯ, a pharyngealized t, , ע ʽAyin (or ʽE in some dialects), a pharyngealized glottal stop (sometimes considered to be a voiced pharyngeal approximant), or , צ Ṣāḏê, a pharyngealized s, , ק Qôp, a voiceless uvular stop, . Ancient Aramaic may have had a larger series of emphatics, and some Neo-Aramaic languages definitely do. Not all dialects of Aramaic give these consonants their historic values. Overlapping with the set of emphatics are the "guttural" consonants. They include ח Ḥêṯ and ע ʽAyn from the emphatic set, and add א ʼĀlap̄ (a glottal stop) and ה Hê (as the English "h"). Aramaic classically has a set of four sibilants (ancient Aramaic may have had six): ס, שׂ (as in English "sea"), ז (as in English "zero"), שׁ (as in English "ship"), צ (the emphatic Ṣāḏê listed above). In addition to these sets, Aramaic has the nasal consonants מ m and נ n, and the approximants ר r (usually an alveolar trill), ל l, י y and ו w. Historical sound changes Six broad features of sound change can be seen as dialect differentials: Vowel change occurs almost too frequently to document fully, but is a major distinctive feature of different dialects. Plosive/fricative pair reduction. Originally, Aramaic, like Tiberian Hebrew, had fricatives as conditioned allophones for each plosive. In the wake of vowel changes, the distinction eventually became phonemic; still later, it was often lost in certain dialects. For example, Turoyo has mostly lost , using instead, like Arabic; other dialects (for instance, standard Assyrian Neo-Aramaic) have lost and and replaced them with and , as with Modern Hebrew. In most dialects of Modern Syriac, and are realized as after a vowel. Loss of emphatics. Some dialects have replaced emphatic consonants with non-emphatic counterparts, while those spoken in the Caucasus often have glottalized rather than pharyngealized emphatics. Guttural assimilation is the main distinctive feature of Samaritan pronunciation, also found in Samaritan Hebrew: all the gutturals are reduced to a simple glottal stop. Some Modern Aramaic dialects do not pronounce h in all words (the third person masculine pronoun hu becomes ow). Proto-Semitic */θ/ */ð/ are reflected in Aramaic as */t/, */d/, whereas they became sibilants in Hebrew (the number three is שלוש šālôš in Hebrew but תלת tlāṯ in Aramaic, the word gold is זהב zahav in Hebrew but דהב dehav in Aramaic). Dental/sibilant shifts are still happening in the modern dialects. New phonetic inventory. Modern dialects have borrowed sounds from the dominant surrounding languages. The most frequent borrowings are (as the first consonant in "azure"), (as in "jam") and (as in "church"). The Syriac alphabet has been adapted for writing these new sounds. Grammar As with other Semitic languages, Aramaic morphology (the way words are formed) is based on the consonantal root. The root generally consists of two or three consonants and has a basic meaning, for example, כת״ב k-t-b has the meaning of 'writing'. This is then modified by the addition of vowels and other consonants to create different nuances of the basic meaning: כתבה kṯāḇâ, handwriting, inscription, script, book. כתבי kṯāḇê, books, the Scriptures. כתובה kāṯûḇâ, secretary, scribe. כתבת kiṯḇeṯ, I wrote. אכתב eḵtûḇ, I shall write. Nouns and adjectives Aramaic nouns and adjectives are inflected to show gender, number and state. Aramaic has two grammatical genders: masculine and feminine. The feminine absolute singular is often marked by the ending ה- -â. Nouns can be either singular or plural, but an additional "dual" number exists for nouns that usually come in pairs. The dual number gradually disappeared from Aramaic over time and has little influence in Middle and Modern Aramaic. Aramaic nouns and adjectives can exist in one of three states. To a certain extent, these states correspond to the role of articles and cases in the Indo-European languages: The absolute state is the basic form of a noun. In early forms of Aramaic, the absolute state expresses indefiniteness, comparable to the English indefinite article a(n) (for example, כתבה kṯāḇâ, "a handwriting"), and can be used in most syntactic roles. However, by the Middle Aramaic period, its use for nouns (but not adjectives) had been widely replaced by the emphatic state. The construct state is a form of the noun used to make possessive constructions (for example, כתבת מלכתא kṯāḇat' malkṯâ, "the handwriting of the queen"). In the masculine singular, the form of the construct is often the same as the absolute, but it may undergo vowel reduction in longer words. The feminine construct and masculine construct plural are marked by suffixes. Unlike a genitive case, which marks the possessor, the construct state is marked on the possessed. This is mainly due to Aramaic word order: possessed[const.] possessor[abs./emph.] are treated as a speech unit, with the first unit (possessed) employing the construct state to link it to the following word. In Middle Aramaic, the use of the construct state for all but stock phrases (like בר נשא bar nāšâ, "son of man") begins to disappear. The emphatic or determined state is an extended form of the noun that functions similarly to the definite article. It is marked with a suffix (for example, כתבתא kṯāḇtâ, "the handwriting"). Although its original grammatical function seems to have been to mark definiteness, it is used already in Imperial Aramaic to mark all important nouns, even if they should be considered technically indefinite. This practice developed to the extent that the absolute state became extraordinarily rare in later varieties of Aramaic. Whereas other Northwest Semitic languages, like Hebrew, have the absolute and construct states, the emphatic/determined state is a unique feature to Aramaic. Case endings, as in Ugaritic, probably existed in a very early stage of the language, and glimpses of them can be seen in a few compound proper names. However, as most of those cases were expressed by short final vowels, they were never written, and the few characteristic long vowels of the masculine plural accusative and genitive are not clearly evidenced in inscriptions. Often, the direct object is marked by a prefixed -ל l- (the preposition "to") if it is definite. Adjectives agree with their nouns in number and gender but agree in state only if used attributively. Predicative adjectives are in the absolute state regardless of the state of their noun (a copula may or may not be written). Thus, an attributive adjective to an emphatic noun, as in the phrase "the good king", is written also in the emphatic state מלכא טבא malkâ ṭāḇâking[emph.] good[emph.]. In comparison, the predicative adjective, as in the phrase "the king is good", is written in the absolute state מלכא טב malkâ ṭāḇking[emph.] good[abs.]. The final א- -â in a number of these suffixes is written with the letter aleph. However, some Jewish Aramaic texts employ the letter he for the feminine absolute singular. Likewise, some Jewish Aramaic texts employ the Hebrew masculine absolute singular suffix ים- -îm instead of ין- -în. The masculine determined plural suffix, יא- -ayyâ, has an alternative

mission, Titus journeyed north and met Paul in Macedonia. There the apostle, overjoyed by Titus' success, wrote 2 Corinthians. Titus then returned to Corinth with a larger entourage, carrying 2 Corinthians with him. Paul joined Titus in Corinth later. From Corinth, Paul then sent Titus to organize the collections of alms for the Christians at Jerusalem. Titus was therefore a troubleshooter, peacemaker, administrator, and missionary. Early church tradition holds that Paul, after his release from his first imprisonment in Rome, stopped at the island of Crete to preach. Due to the needs of other churches, requiring his presence elsewhere, he ordained his disciple Titus as bishop of that island, and left him to finish the work he had started. Chrysostom says that this is an indication of the esteem Paul held for Titus. Paul summoned Titus from Crete to join him at Nicopolis in Epirus. Later, Titus traveled to Dalmatia. The New Testament does not record his death. It has been argued that the name "Titus" in 2 Corinthians and Galatians is nothing more than an informal name used by Timothy, implied already by the fact that even though both are said to be long-term close companions of Paul, they never appear in common scenes. The theory proposes that a number of passages—1 Cor. 4:17, 16.10; 2 Cor. 2:13, 7:6, 13–14, 12:18; and Acts 19.22—all refer to the same journey of

that they are different men, although certain manuscripts of Galatians have been taken (by Marius Victorinus, for example) to indicate that Paul did circumcise Titus. Veneration The feast day of Titus was not included in the Tridentine Calendar. When added in 1854, it was assigned to 6 February. In 1969, the Catholic Church assigned the feast to 26 January so as to celebrate the two disciples of Paul, Titus and Timothy, the day after the feast of the Conversion of St. Paul. The Evangelical Lutheran Church in America celebrates these two, together with Silas, on the same date while in the Church of England he is remembered (with Timothy) with a Lesser Festival on 26 January. The Eastern Orthodox Church commemorates Titus on 25 August and on 4 January. His relics, now consisting of only his skull, are venerated in the Church of St. Titus, Heraklion, Crete, to which it was returned in 1966 after being removed to Venice during the Turkish occupation. Titus is the patron saint of the United States Army Chaplain Corps. The Corps has established the Order of Titus Award, described by the Department of Defense: References Seventy disciples 1st-century births 107 deaths People in the Pauline epistles 1st-century bishops in the Roman Empire Christian saints from the New Testament Saints of

is something that has not been decisively proven) remained in active use by scientists through the late 1950s. At present, there are two major methods of producing isotopes of transplutonium elements: (1) irradiation of the lighter elements with neutrons; (2) irradiation with accelerated charged particles. The first method is more important for applications, as only neutron irradiation using nuclear reactors allows the production of sizeable amounts of synthetic actinides; however, it is limited to relatively light elements. The advantage of the second method is that elements heavier than plutonium, as well as neutron-deficient isotopes, can be obtained, which are not formed during neutron irradiation. In 1962–1966, there were attempts in the United States to produce transplutonium isotopes using a series of six underground nuclear explosions. Small samples of rock were extracted from the blast area immediately after the test to study the explosion products, but no isotopes with mass number greater than 257 could be detected, despite predictions that such isotopes would have relatively long half-lives of α-decay. This non-observation was attributed to spontaneous fission owing to the large speed of the products and to other decay channels, such as neutron emission and nuclear fission. From actinium to uranium Uranium and thorium were the first actinides discovered. Uranium was identified in 1789 by the German chemist Martin Heinrich Klaproth in pitchblende ore. He named it after the planet Uranus, which had been discovered eight years earlier. Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. He then reduced the obtained yellow powder with charcoal, and extracted a black substance that he mistook for metal. Sixty years later, the French scientist Eugène-Melchior Péligot identified it as uranium oxide. He also isolated the first sample of uranium metal by heating uranium tetrachloride with metallic potassium. The atomic mass of uranium was then calculated as 120, but Dmitri Mendeleev in 1872 corrected it to 240 using his periodicity laws. This value was confirmed experimentally in 1882 by K. Zimmerman. Thorium oxide was discovered by Friedrich Wöhler in the mineral Thorianite, which was found in Norway (1827). Jöns Jacob Berzelius characterized this material in more detail in 1828. By reduction of thorium tetrachloride with potassium, he isolated the metal and named it thorium after the Norse god of thunder and lightning Thor. The same isolation method was later used by Péligot for uranium. Actinium was discovered in 1899 by André-Louis Debierne, an assistant of Marie Curie, in the pitchblende waste left after removal of radium and polonium. He described the substance (in 1899) as similar to titanium and (in 1900) as similar to thorium. The discovery of actinium by Debierne was however questioned in 1971 and 2000, arguing that Debierne's publications in 1904 contradicted his earlier work of 1899–1900. This view instead credits the 1902 work of Friedrich Oskar Giesel, who discovered a radioactive element named emanium that behaved similarly to lanthanum. The name actinium comes from the Greek aktis, aktinos (ακτίς, ακτίνος), meaning beam or ray. This metal was discovered not by its own radiation but by the radiation of the daughter products. Owing to the close similarity of actinium and lanthanum and low abundance, pure actinium could only be produced in 1950. The term actinide was probably introduced by Victor Goldschmidt in 1937. Protactinium was possibly isolated in 1900 by William Crookes. It was first identified in 1913, when Kasimir Fajans and Oswald Helmuth Göhring encountered the short-lived isotope 234mPa (half-life 1.17 minutes) during their studies of the 238U decay. They named the new element brevium (from Latin brevis meaning brief); the name was changed to protoactinium (from Greek πρῶτος + ἀκτίς meaning "first beam element") in 1918 when two groups of scientists, led by the Austrian Lise Meitner and Otto Hahn of Germany and Frederick Soddy and John Cranston of Great Britain, independently discovered the much longer-lived 231Pa. The name was shortened to protactinium in 1949. This element was little characterized until 1960, when A. G. Maddock and his co-workers in the U.K. isolated 130 grams of protactinium from 60 tonnes of waste left after extraction of uranium from its ore. Neptunium and above Neptunium (named for the planet Neptune, the next planet out from Uranus, after which uranium was named) was discovered by Edwin McMillan and Philip H. Abelson in 1940 in Berkeley, California. They produced the 239Np isotope (half-life = 2.4 days) by bombarding uranium with slow neutrons. It was the first transuranium element produced synthetically. Transuranium elements do not occur in sizeable quantities in nature and are commonly synthesized via nuclear reactions conducted with nuclear reactors. For example, under irradiation with reactor neutrons, uranium-238 partially converts to plutonium-239: This synthesis reaction was used by Fermi and his collaborators in their design of the reactors located at the Hanford Site, which produced significant amounts of plutonium-239 for the nuclear weapons of the Manhattan Project and the United States' post-war nuclear arsenal. Actinides with the highest mass numbers are synthesized by bombarding uranium, plutonium, curium and californium with ions of nitrogen, oxygen, carbon, neon or boron in a particle accelerator. Thus nobelium was produced by bombarding uranium-238 with neon-22 as _{92}^{238}U + _{10}^{22}Ne -> _{102}^{256}No + 4_0^1n. The first isotopes of transplutonium elements, americium-241 and curium-242, were synthesized in 1944 by Glenn T. Seaborg, Ralph A. James and Albert Ghiorso. Curium-242 was obtained by bombarding plutonium-239 with 32-MeV α-particles _{94}^{239}Pu + _2^4He -> _{96}^{242}Cm + _0^1n. The americium-241 and curium-242 isotopes also were produced by irradiating plutonium in a nuclear reactor. The latter element was named after Marie Curie and her husband Pierre who are noted for discovering radium and for their work in radioactivity. Bombarding curium-242 with α-particles resulted in an isotope of californium 245Cf (1950), and a similar procedure yielded in 1949 berkelium-243 from americium-241. The new elements were named after Berkeley, California, by analogy with its lanthanide homologue terbium, which was named after the village of Ytterby in Sweden. In 1945, B. B. Cunningham obtained the first bulk chemical compound of a transplutonium element, namely americium hydroxide. Over the few years, milligram quantities of americium and microgram amounts of curium were accumulated that allowed production of isotopes of berkelium (Thomson, 1949) and californium (Thomson, 1950). Sizeable amounts of these elements were produced in 1958 (Burris B. Cunningham and Stanley G. Thomson), and the first californium compound (0.3 µg of CfOCl) was obtained in 1960 by B. B. Cunningham and J. C. Wallmann. Einsteinium and fermium were identified in 1952–1953 in the fallout from the "Ivy Mike" nuclear test (1 November 1952), the first successful test of a hydrogen bomb. Instantaneous exposure of uranium-238 to a large neutron flux resulting from the explosion produced heavy isotopes of uranium, including uranium-253 and uranium-255, and their β-decay yielded einsteinium-253 and fermium-255. The discovery of the new elements and the new data on neutron capture were initially kept secret on the orders of the US military until 1955 due to Cold War tensions. Nevertheless, the Berkeley team were able to prepare einsteinium and fermium by civilian means, through the neutron bombardment of plutonium-239, and published this work in 1954 with the disclaimer that it was not the first studies that had been carried out on those elements. The "Ivy Mike" studies were declassified and published in 1955. The first significant (submicrograms) amounts of einsteinium were produced in 1961 by Cunningham and colleagues, but this has not been done for fermium yet. The first isotope of mendelevium, 256Md (half-life 87 min), was synthesized by Albert Ghiorso, Glenn T. Seaborg, Gregory R. Choppin, Bernard G. Harvey and Stanley G. Thompson when they bombarded an 253Es target with alpha particles in the 60-inch cyclotron of Berkeley Radiation Laboratory; this was the first isotope of any element to be synthesized one atom at a time. There were several attempts to obtain isotopes of nobelium by Swedish (1957) and American (1958) groups, but the first reliable result was the synthesis of 256No by the Russian group (Georgy Flyorov et al.) in 1965, as acknowledged by the IUPAC in 1992. In their experiments, Flyorov et al. bombarded uranium-238 with neon-22. In 1961, Ghiorso et al. obtained the first isotope of lawrencium by irradiating californium (mostly californium-252) with boron-10 and boron-11 ions. The mass number of this isotope was not clearly established (possibly 258 or 259) at the time. In 1965, 256Lr was synthesized by Flyorov et al. from 243Am and 18O. Thus IUPAC recognized the nuclear physics teams at Dubna and Berkeley as the co-discoverers of lawrencium. Isotopes 32 isotopes of actinium and eight excited isomeric states of some of its nuclides were identified by 2016. Three isotopes, 225Ac, 227Ac and 228Ac, were found in nature and the others were produced in the laboratory; only the three natural isotopes are used in applications. Actinium-225 is a member of the radioactive neptunium series; it was first discovered in 1947 as a decay product of uranium-233, it is an α-emitter with a half-life of 10 days. Actinium-225 is less available than actinium-228, but is more promising in radiotracer applications. Actinium-227 (half-life 21.77 years) occurs in all uranium ores, but in small quantities. One gram of uranium (in radioactive equilibrium) contains only 2 gram of 227Ac. Actinium-228 is a member of the radioactive thorium series formed by the decay of 228Ra; it is a β− emitter with a half-life of 6.15 hours. In one tonne of thorium there is 5 gram of 228Ac. It was discovered by Otto Hahn in 1906. There are 31 known isotopes of thorium ranging in mass number from 208 to 238. Of these, the longest-lived is 232Th, whose half-life of means that it still exists in nature as a primordial nuclide. The next longest-lived is 230Th, an intermediate decay product of 238U with a half-life of 75,400 years. Several other thorium isotopes have half-lives over a day; all of these are also transient in the decay chains of 232Th, 235U, and 238U. 28 isotopes of protactinium are known with mass numbers 212–239 as well as three excited isomeric states. Only 231Pa and 234Pa have been found in nature. All the isotopes have short lifetimes, except for protactinium-231 (half-life 32,760 years). The most important isotopes are 231Pa and 233Pa, which is an intermediate product in obtaining uranium-233 and is the most affordable among artificial isotopes of protactinium. 233Pa has convenient half-life and energy of γ-radiation, and thus was used in most studies of protactinium chemistry. Protactinium-233 is a β-emitter with a half-life of 26.97 days. There are 26 known isotopes of uranium, having mass numbers 215–242 (except 220 and 241). Three of them, 234U, 235U and 238U, are present in appreciable quantities in nature. Among others, the most important is 233U, which is a final product of transformation of 232Th irradiated by slow neutrons. 233U has a much higher fission efficiency by low-energy (thermal) neutrons, compared e.g. with 235U. Most uranium chemistry studies were carried out on uranium-238 owing to its long half-life of 4.4 years. There are 24 isotopes of neptunium with mass numbers of 219, 220, and 223–244; they are all highly radioactive. The most popular among scientists are long-lived 237Np (t1/2 = 2.20 years) and short-lived 239Np, 238Np (t1/2 ~ 2 days). Eighteen isotopes of americium are known with mass numbers from 229 to 247 (with the exception of 231). The most important are 241Am and 243Am, which are alpha-emitters and also emit soft, but intense γ-rays; both of them can be obtained in an isotopically pure form. Chemical properties of americium were first studied with 241Am, but later shifted to 243Am, which is almost 20 times less radioactive. The disadvantage of 243Am is production of the short-lived daughter isotope 239Np, which has to be considered in the data analysis. Among 19 isotopes of curium, ranging in mass number from 233 to 251, the most accessible are 242Cm and 244Cm; they are α-emitters, but with much shorter lifetime than the americium isotopes. These isotopes emit almost no γ-radiation, but undergo spontaneous fission with the associated emission of neutrons. More long-lived isotopes of curium (245–248Cm, all α-emitters) are formed as a mixture during neutron irradiation of plutonium or americium. Upon short irradiation, this mixture is dominated by 246Cm, and then 248Cm begins to accumulate. Both of these isotopes, especially 248Cm, have a longer half-life (3.48 years) and are much more convenient for carrying out chemical research than 242Cm and 244Cm, but they also have a rather high rate of spontaneous fission. 247Cm has the longest lifetime among isotopes of curium (1.56 years), but is not formed in large quantities because of the strong fission induced by thermal neutrons. Seventeen isotopes of berkelium were identified with mass numbers 233–234, 236, 238, and 240–252. Only 249Bk is available in large quantities; it has a relatively short half-life of 330 days and emits mostly soft β-particles, which are inconvenient for detection. Its alpha radiation is rather weak (1.45% with respect to β-radiation), but is sometimes used to detect this isotope. 247Bk is an alpha-emitter with a long half-life of 1,380 years, but it is hard to obtain in appreciable quantities; it is not formed upon neutron irradiation of plutonium because of the β-stability of isotopes of curium isotopes with mass number below 248. The 20 isotopes of californium with mass numbers 237–256 are formed in nuclear reactors; californium-253 is a β-emitter and the rest are α-emitters. The isotopes with even mass numbers (250Cf, 252Cf and 254Cf) have a high rate of spontaneous fission, especially 254Cf of which 99.7% decays by spontaneous fission. Californium-249 has a relatively long half-life (352 years), weak spontaneous fission and strong γ-emission that facilitates its identification. 249Cf is not formed in large quantities in a nuclear reactor because of the slow β-decay of the parent isotope 249Bk and a large cross section of interaction with neutrons, but it can be accumulated in the isotopically pure form as the β-decay product of (pre-selected) 249Bk. Californium produced by reactor-irradiation of plutonium mostly consists of 250Cf and 252Cf, the latter being predominant for large neutron fluences, and its study is hindered by the strong neutron radiation. Among the 18 known isotopes of einsteinium with mass numbers from 240 to 257, the most affordable is 253Es. It is an α-emitter with a half-life of 20.47 days, a relatively weak γ-emission and small spontaneous fission rate as compared with the isotopes of californium. Prolonged neutron irradiation also produces a long-lived isotope 254Es (t1/2 = 275.5 days). Twenty isotopes of fermium are known with mass numbers of 241–260. 254Fm, 255Fm and 256Fm are α-emitters with a short half-life (hours), which can be isolated in significant amounts. 257Fm (t1/2 = 100 days) can accumulate upon prolonged and strong irradiation. All these isotopes are characterized by high rates of spontaneous fission. Among the 17 known isotopes of mendelevium (mass numbers from 244 to 260), the most studied is 256Md, which mainly decays through the electron capture (α-radiation is ≈10%) with the half-life of 77 minutes. Another alpha emitter, 258Md, has a half-life of 53 days. Both these isotopes are produced from rare einsteinium (253Es and 255Es respectively), that therefore limits their availability. Long-lived isotopes of nobelium and isotopes of lawrencium (and of heavier elements) have relatively short half-lives. For nobelium, 11 isotopes are known with mass numbers 250–260 and 262. The chemical properties of nobelium and lawrencium were studied with 255No (t1/2 = 3 min) and 256Lr (t1/2 = 35 s). The longest-lived nobelium isotope, 259No, has a half-life of approximately 1 hour. Lawrencium has 13 known isotopes with mass numbers 251–262 and 266. The most stable of them all is 266Lr with a half life of 11 hours. Among all of these, the only isotopes that occur in sufficient quantities in nature to be detected in anything more than traces and have a measurable contribution to the atomic weights of the actinides are the primordial 232Th, 235U, and 238U, and three long-lived decay products of natural uranium, 230Th, 231Pa, and 234U. Natural thorium consists of 0.02(2)% 230Th and 99.98(2)% 232Th; natural protactinium consists of 100% 231Pa; and natural uranium consists of 0.0054(5)% 234U, 0.7204(6)% 235U, and 99.2742(10)% 238U. Formation in nuclear reactors The figure buildup of actinides is a table of nuclides with the number of neutrons on the horizontal axis (isotopes) and the number of protons on the vertical axis (elements). The red dot divides the nuclides in two groups, so the figure is more compact. Each nuclide is represented by a square with the mass number of the element and its half-time. Naturally existing actinide isotopes (Th, U) are marked with a bold border, alpha emitters have a yellow colour, and beta emitters have a blue colour. Pink indicates electron capture (236Np), whereas white stands for a long-lasting metastable state (242Am). The formation of actinide nuclides is primarily characterised by: Neutron capture reactions (n,γ), which are represented in the figure by a short right arrow. The (n,2n) reactions and the less frequently occurring (γ,n) reactions are also taken into account, both of which are marked by a short left arrow. Even more rarely and only triggered by fast neutrons, the (n,3n) reaction occurs, which is represented in the figure with one example, marked by a long left arrow. In addition to these neutron- or gamma-induced nuclear reactions, the radioactive conversion of actinide nuclides also affects the nuclide inventory in a reactor. These decay types are marked in the figure by diagonal arrows. The beta-minus decay, marked with an arrow pointing up-left, plays a major role for the balance of the particle densities of the nuclides. Nuclides decaying by positron emission (beta-plus decay) or electron capture (ϵ) do not occur in a nuclear reactor except as products of knockout reactions; their decays are marked with arrows pointing down-right. Due to the long half-lives of the given nuclides, alpha decay plays almost no role in the formation and decay of the actinides in a power reactor, as the residence time of the nuclear fuel in the reactor core is rather short (a few years). Exceptions are the two relatively short-lived nuclides 242Cm (T1/2 = 163 d) and 236Pu (T1/2 = 2.9 y). Only for these two cases, the α decay is marked on the nuclide map by a long arrow pointing down-left. Distribution in nature Thorium and uranium are the most abundant actinides in nature with the respective mass concentrations of 16 ppm and 4 ppm. Uranium mostly occurs in the Earth's crust as a mixture of its oxides in the mineral uraninite, which is also called pitchblende because of its black color. There are several dozens of other uranium minerals such as carnotite (KUO2VO4·3H2O) and autunite (Ca(UO2)2(PO4)2·nH2O). The isotopic composition of natural uranium is 238U (relative abundance 99.2742%), 235U (0.7204%) and 234U (0.0054%); of these 238U has the largest half-life of 4.51 years. The worldwide production of uranium in 2009 amounted to 50,572 tonnes, of which 27.3% was mined in Kazakhstan. Other important uranium mining countries are Canada (20.1%), Australia (15.7%), Namibia (9.1%), Russia (7.0%), and Niger (6.4%). The most abundant thorium minerals are thorianite (ThO2), thorite (ThSiO4) and monazite, ((Th,Ca,Ce)PO4). Most thorium minerals contain uranium and vice versa; and they all have significant fraction of lanthanides. Rich deposits of thorium minerals are located in the United States (440,000 tonnes), Australia and India (~300,000 tonnes each) and Canada (~100,000 tonnes). The abundance of actinium in the Earth's crust is only about 5%. Actinium is mostly present in uranium-containing, but also in other minerals, though in much smaller quantities. The content of actinium in most natural objects corresponds to the isotopic equilibrium of parent isotope 235U, and it is not affected by the weak Ac migration. Protactinium is more abundant (10−12%) in the Earth's crust than actinium. It was discovered in the uranium ore in 1913 by Fajans and Göhring. As actinium, the distribution of protactinium follows that of 235U. The half-life of the longest-lived isotope of neptunium, 237Np, is negligible compared to the age of the Earth. Thus neptunium is present in nature in negligible amounts produced as intermediate decay products of other isotopes. Traces of plutonium in uranium minerals were first found in 1942, and the more systematic results on 239Pu are summarized in the table (no other plutonium isotopes could be detected in those samples). The upper limit of abundance of the longest-living isotope of plutonium, 244Pu, is 3%. Plutonium could not be detected in samples of lunar soil. Owing to its scarcity in nature, most plutonium is produced synthetically. Extraction Owing to the low abundance of actinides, their extraction is a complex, multistep process. Fluorides of actinides are usually used because they are insoluble in water and can be easily separated with redox reactions. Fluorides are reduced with calcium, magnesium or barium: Among the actinides, thorium and uranium are the easiest to isolate. Thorium is extracted mostly from monazite: thorium pyrophosphate (ThP2O7) is reacted with nitric acid, and the produced thorium nitrate treated with tributyl phosphate. Rare-earth impurities are separated by increasing the pH in sulfate solution. In another extraction method, monazite is decomposed with a 45% aqueous solution of sodium hydroxide at 140 °C. Mixed metal hydroxides are extracted first, filtered at 80 °C, washed with water and dissolved with concentrated hydrochloric acid. Next, the acidic solution is neutralized with hydroxides to pH = 5.8 that results in precipitation of thorium hydroxide (Th(OH)4) contaminated with ~3% of rare-earth hydroxides; the rest of rare-earth hydroxides remains in solution. Thorium hydroxide is dissolved in an inorganic acid and then purified from the rare earth elements. An efficient method is the dissolution of thorium hydroxide in nitric acid, because the resulting solution can be purified by extraction with organic solvents: Th(OH)4 + 4 HNO3 → Th(NO3)4 + 4 H2O Metallic thorium is separated from the anhydrous oxide, chloride or fluoride by reacting it with calcium in an inert atmosphere: ThO2 + 2 Ca → 2 CaO + Th Sometimes thorium is extracted by electrolysis of a fluoride in a mixture of sodium and potassium chloride at 700–800 °C in a graphite crucible. Highly pure thorium can be extracted from its iodide with the crystal bar process. Uranium is extracted from its ores in various ways. In one method, the ore is burned and then reacted with nitric acid to convert uranium into a dissolved state. Treating the solution with a solution of tributyl phosphate (TBP) in kerosene transforms uranium into an organic form UO2(NO3)2(TBP)2. The insoluble impurities are filtered and the uranium is extracted by reaction with hydroxides as (NH4)2U2O7 or with hydrogen peroxide as UO4·2H2O. When the uranium ore is rich in such minerals as dolomite, magnesite, etc., those minerals consume much acid. In this case, the carbonate method is used for uranium extraction. Its main component is an aqueous solution of sodium carbonate, which converts uranium into a complex [UO2(CO3)3]4−, which is stable in aqueous solutions at low concentrations of hydroxide ions. The advantages of the sodium carbonate method are that the chemicals have low corrosivity (compared to nitrates) and that most non-uranium metals precipitate from the solution. The disadvantage is that tetravalent uranium compounds precipitate as well. Therefore, the uranium ore is treated with

to interelectronic repulsion. In comparison with the lanthanides, also mostly f-block elements, the actinides show much more variable valence. They all have very large atomic and ionic radii and exhibit an unusually large range of physical properties. While actinium and the late actinides (from americium onwards) behave similarly to the lanthanides, the elements thorium, protactinium, and uranium are much more similar to transition metals in their chemistry, with neptunium and plutonium occupying an intermediate position. All actinides are radioactive and release energy upon radioactive decay; naturally occurring uranium and thorium, and synthetically produced plutonium are the most abundant actinides on Earth. These are used in nuclear reactors and nuclear weapons. Uranium and thorium also have diverse current or historical uses, and americium is used in the ionization chambers of most modern smoke detectors. Of the actinides, primordial thorium and uranium occur naturally in substantial quantities. The radioactive decay of uranium produces transient amounts of actinium and protactinium, and atoms of neptunium and plutonium are occasionally produced from transmutation reactions in uranium ores. The other actinides are purely synthetic elements. Nuclear weapons tests have released at least six actinides heavier than plutonium into the environment; analysis of debris from a 1952 hydrogen bomb explosion showed the presence of americium, curium, berkelium, californium, einsteinium and fermium. In presentations of the periodic table, the f-block elements are customarily shown as two additional rows below the main body of the table. This convention is entirely a matter of aesthetics and formatting practicality; a rarely used wide-formatted periodic table inserts the 4f and 5f series in their proper places, as parts of the table's sixth and seventh rows (periods). Discovery, isolation and synthesis Like the lanthanides, the actinides form a family of elements with similar properties. Within the actinides, there are two overlapping groups: transuranium elements, which follow uranium in the periodic table; and transplutonium elements, which follow plutonium. Compared to the lanthanides, which (except for promethium) are found in nature in appreciable quantities, most actinides are rare. Most do not occur in nature, and of those that do, only thorium and uranium do so in more than trace quantities. The most abundant or easily synthesized actinides are uranium and thorium, followed by plutonium, americium, actinium, protactinium, neptunium, and curium. The existence of transuranium elements was suggested in 1934 by Enrico Fermi, based on his experiments. However, even though four actinides were known by that time, it was not yet understood that they formed a family similar to lanthanides. The prevailing view that dominated early research into transuranics was that they were regular elements in the 7th period, with thorium, protactinium and uranium corresponding to 6th-period hafnium, tantalum and tungsten, respectively. Synthesis of transuranics gradually undermined this point of view. By 1944, an observation that curium failed to exhibit oxidation states above 4 (whereas its supposed 6th period homolog, platinum, can reach oxidation state of 6) prompted Glenn Seaborg to formulate an "actinide hypothesis". Studies of known actinides and discoveries of further transuranic elements provided more data in support of this position, but the phrase "actinide hypothesis" (the implication being that a "hypothesis" is something that has not been decisively proven) remained in active use by scientists through the late 1950s. At present, there are two major methods of producing isotopes of transplutonium elements: (1) irradiation of the lighter elements with neutrons; (2) irradiation with accelerated charged particles. The first method is more important for applications, as only neutron irradiation using nuclear reactors allows the production of sizeable amounts of synthetic actinides; however, it is limited to relatively light elements. The advantage of the second method is that elements heavier than plutonium, as well as neutron-deficient isotopes, can be obtained, which are not formed during neutron irradiation. In 1962–1966, there were attempts in the United States to produce transplutonium isotopes using a series of six underground nuclear explosions. Small samples of rock were extracted from the blast area immediately after the test to study the explosion products, but no isotopes with mass number greater than 257 could be detected, despite predictions that such isotopes would have relatively long half-lives of α-decay. This non-observation was attributed to spontaneous fission owing to the large speed of the products and to other decay channels, such as neutron emission and nuclear fission. From actinium to uranium Uranium and thorium were the first actinides discovered. Uranium was identified in 1789 by the German chemist Martin Heinrich Klaproth in pitchblende ore. He named it after the planet Uranus, which had been discovered eight years earlier. Klaproth was able to precipitate a yellow compound (likely sodium diuranate) by dissolving pitchblende in nitric acid and neutralizing the solution with sodium hydroxide. He then reduced the obtained yellow powder with charcoal, and extracted a black substance that he mistook for metal. Sixty years later, the French scientist Eugène-Melchior Péligot identified it as uranium oxide. He also isolated the first sample of uranium metal by heating uranium tetrachloride with metallic potassium. The atomic mass of uranium was then calculated as 120, but Dmitri Mendeleev in 1872 corrected it to 240 using his periodicity laws. This value was confirmed experimentally in 1882 by K. Zimmerman. Thorium oxide was discovered by Friedrich Wöhler in the mineral Thorianite, which was found in Norway (1827). Jöns Jacob Berzelius characterized this material in more detail in 1828. By reduction of thorium tetrachloride with potassium, he isolated the metal and named it thorium after the Norse god of thunder and lightning Thor. The same isolation method was later used by Péligot for uranium. Actinium was discovered in 1899 by André-Louis Debierne, an assistant of Marie Curie, in the pitchblende waste left after removal of radium and polonium. He described the substance (in 1899) as similar to titanium and (in 1900) as similar to thorium. The discovery of actinium by Debierne was however questioned in 1971 and 2000, arguing that Debierne's publications in 1904 contradicted his earlier work of 1899–1900. This view instead credits the 1902 work of Friedrich Oskar Giesel, who discovered a radioactive element named emanium that behaved similarly to lanthanum. The name actinium comes from the Greek aktis, aktinos (ακτίς, ακτίνος), meaning beam or ray. This metal was discovered not by its own radiation but by the radiation of the daughter products. Owing to the close similarity of actinium and lanthanum and low abundance, pure actinium could only be produced in 1950. The term actinide was probably introduced by Victor Goldschmidt in 1937. Protactinium was possibly isolated in 1900 by William Crookes. It was first identified in 1913, when Kasimir Fajans and Oswald Helmuth Göhring encountered the short-lived isotope 234mPa (half-life 1.17 minutes) during their studies of the 238U decay. They named the new element brevium (from Latin brevis meaning brief); the name was changed to protoactinium (from Greek πρῶτος + ἀκτίς meaning "first beam element") in 1918 when two groups of scientists, led by the Austrian Lise Meitner and Otto Hahn of Germany and Frederick Soddy and John Cranston of Great Britain, independently discovered the much longer-lived 231Pa. The name was shortened to protactinium in 1949. This element was little characterized until 1960, when A. G. Maddock and his co-workers in the U.K. isolated 130 grams of protactinium from 60 tonnes of waste left after extraction of uranium from its ore. Neptunium and above Neptunium (named for the planet Neptune, the next planet out from Uranus, after which uranium was named) was discovered by Edwin McMillan and Philip H. Abelson in 1940 in Berkeley, California. They produced the 239Np isotope (half-life = 2.4 days) by bombarding uranium with slow neutrons. It was the first transuranium element produced synthetically. Transuranium elements do not occur in sizeable quantities in nature and are commonly synthesized via nuclear reactions conducted with nuclear reactors. For example, under irradiation with reactor neutrons, uranium-238 partially converts to plutonium-239: This synthesis reaction was used by Fermi and his collaborators in their design of the reactors located at the Hanford Site, which produced significant amounts of plutonium-239 for the nuclear weapons of the Manhattan Project and the United States' post-war nuclear arsenal. Actinides with the highest mass numbers are synthesized by bombarding uranium, plutonium, curium and californium with ions of nitrogen, oxygen, carbon, neon or boron in a particle accelerator. Thus nobelium was produced by bombarding uranium-238 with neon-22 as _{92}^{238}U + _{10}^{22}Ne -> _{102}^{256}No + 4_0^1n. The first isotopes of transplutonium elements, americium-241 and curium-242, were synthesized in 1944 by Glenn T. Seaborg, Ralph A. James and Albert Ghiorso. Curium-242 was obtained by bombarding plutonium-239 with 32-MeV α-particles _{94}^{239}Pu + _2^4He -> _{96}^{242}Cm + _0^1n. The americium-241 and curium-242 isotopes also were produced by irradiating plutonium in a nuclear reactor. The latter element was named after Marie Curie and her husband Pierre who are noted for discovering radium and for their work in radioactivity. Bombarding curium-242 with α-particles resulted in an isotope of californium 245Cf (1950), and a similar procedure yielded in 1949 berkelium-243 from americium-241. The new elements were named after Berkeley, California, by analogy with its lanthanide homologue terbium, which was named after the village of Ytterby in Sweden. In 1945, B. B. Cunningham obtained the first bulk chemical compound of a transplutonium element, namely americium hydroxide. Over the few years, milligram quantities of americium and microgram amounts of curium were accumulated that allowed production of isotopes of berkelium (Thomson, 1949) and californium (Thomson, 1950). Sizeable amounts of these elements were produced in 1958 (Burris B. Cunningham and Stanley G. Thomson), and the first californium compound (0.3 µg of CfOCl) was obtained in 1960 by B. B. Cunningham and J. C. Wallmann. Einsteinium and fermium were identified in 1952–1953 in the fallout from the "Ivy Mike" nuclear test (1 November 1952), the first successful test of a hydrogen bomb. Instantaneous exposure of uranium-238 to a large neutron flux resulting from the explosion produced heavy isotopes of uranium, including uranium-253 and uranium-255, and their β-decay yielded einsteinium-253 and fermium-255. The discovery of the new elements and the new data on neutron capture were initially kept secret on the orders of the US military until 1955 due to Cold War tensions. Nevertheless, the Berkeley team were able to prepare einsteinium and fermium by civilian means, through the neutron bombardment of plutonium-239, and published this work in 1954 with the disclaimer that it was not the first studies that had been carried out on those elements. The "Ivy Mike" studies were declassified and published in 1955. The first significant (submicrograms) amounts of einsteinium were produced in 1961 by Cunningham and colleagues, but this has not been done for fermium yet. The first isotope of mendelevium, 256Md (half-life 87 min), was synthesized by Albert Ghiorso, Glenn T. Seaborg, Gregory R. Choppin, Bernard G. Harvey and Stanley G. Thompson when they bombarded an 253Es target with alpha particles in the 60-inch cyclotron of Berkeley Radiation Laboratory; this was the first isotope of any element to be synthesized one atom at a time. There were several attempts to obtain isotopes of nobelium by Swedish (1957) and American (1958) groups, but the first reliable result was the synthesis of 256No by the Russian group (Georgy Flyorov et al.) in 1965, as acknowledged by the IUPAC in 1992. In their experiments, Flyorov et al. bombarded uranium-238 with neon-22. In 1961, Ghiorso et al. obtained the first isotope of lawrencium by irradiating californium (mostly californium-252) with boron-10 and boron-11 ions. The mass number of this isotope was not clearly established (possibly 258 or 259) at the time. In 1965, 256Lr was synthesized by Flyorov et al. from 243Am and 18O. Thus IUPAC recognized the nuclear physics teams at Dubna and Berkeley as the co-discoverers of lawrencium. Isotopes 32 isotopes of actinium and eight excited isomeric states of some of its nuclides were identified by 2016. Three isotopes, 225Ac, 227Ac and 228Ac, were found in nature and the others were produced in the laboratory; only the three natural isotopes are used in applications. Actinium-225 is a member of the radioactive neptunium series; it was first discovered in 1947 as a decay product of uranium-233, it is an α-emitter with a half-life of 10 days. Actinium-225 is less available than actinium-228, but is more promising in radiotracer applications. Actinium-227 (half-life 21.77 years) occurs in all uranium ores, but in small quantities. One gram of uranium (in radioactive equilibrium) contains only 2 gram of 227Ac. Actinium-228 is a member of the radioactive thorium series formed by the decay of 228Ra; it is a β− emitter with a half-life of 6.15 hours. In one tonne of thorium there is 5 gram of 228Ac. It was discovered by Otto Hahn in 1906. There are 31 known isotopes of thorium ranging in mass number from 208 to 238. Of these, the longest-lived is 232Th, whose half-life of means that it still exists in nature as a primordial nuclide. The next longest-lived is 230Th, an intermediate decay product of 238U with a half-life of 75,400 years. Several other thorium isotopes have half-lives over a day; all of these are also transient in the decay chains of 232Th, 235U, and 238U. 28 isotopes of protactinium are known with mass numbers 212–239 as well as three excited isomeric states. Only 231Pa and 234Pa have been found in nature. All the isotopes have short lifetimes, except for protactinium-231 (half-life 32,760 years). The most important isotopes are 231Pa and 233Pa, which is an intermediate product in obtaining uranium-233 and is the most affordable among artificial isotopes of protactinium. 233Pa has convenient half-life and energy of γ-radiation, and thus was used in most studies of protactinium chemistry. Protactinium-233 is a β-emitter with a half-life of 26.97 days. There are 26 known isotopes of uranium, having mass numbers 215–242 (except 220 and 241). Three of them, 234U, 235U and 238U, are present in appreciable quantities in nature. Among others, the most important is 233U, which is a final product of transformation of 232Th irradiated by slow neutrons. 233U has a much higher fission efficiency by low-energy (thermal) neutrons, compared e.g. with 235U. Most uranium chemistry studies were carried out on uranium-238 owing to its long half-life of 4.4 years. There are 24 isotopes of neptunium with mass numbers of 219, 220, and 223–244; they are all highly radioactive. The most popular among scientists are long-lived 237Np (t1/2 = 2.20 years) and short-lived 239Np, 238Np (t1/2 ~ 2 days). Eighteen isotopes of americium are known with mass numbers from 229 to 247 (with the exception of 231). The most important are 241Am and 243Am, which are alpha-emitters and also emit soft, but intense γ-rays; both of them can be obtained in an isotopically pure form. Chemical properties of americium were first studied with 241Am, but later shifted to 243Am, which is almost 20 times less radioactive. The disadvantage of 243Am is production of the short-lived daughter isotope 239Np, which has to be considered in the data analysis. Among 19 isotopes of curium, ranging in mass number from 233 to 251, the most accessible are 242Cm and 244Cm; they are α-emitters, but with much shorter lifetime than the americium isotopes. These isotopes emit almost no γ-radiation, but undergo spontaneous fission with the associated emission of neutrons. More long-lived isotopes of curium (245–248Cm, all α-emitters) are formed as a mixture during neutron irradiation of plutonium or americium. Upon short irradiation, this mixture is dominated by 246Cm, and then 248Cm begins to accumulate. Both of these isotopes, especially 248Cm, have a longer half-life (3.48 years) and are much more convenient for carrying out chemical research than 242Cm and 244Cm, but they also have a rather high rate of spontaneous fission. 247Cm has the longest lifetime among isotopes of curium (1.56 years), but is not formed in large quantities because of the strong fission induced by thermal neutrons. Seventeen isotopes of berkelium were identified with mass numbers 233–234, 236, 238, and 240–252. Only 249Bk is available in large quantities; it has a relatively short half-life of 330 days and emits mostly soft β-particles, which are inconvenient for detection. Its alpha radiation is rather weak (1.45% with respect to β-radiation), but is sometimes used to detect this isotope. 247Bk is an alpha-emitter with a long half-life of 1,380 years, but it is hard to obtain in appreciable quantities; it is not formed upon neutron irradiation of plutonium because of the β-stability of isotopes of curium isotopes with mass number below 248. The 20 isotopes of californium with mass numbers 237–256 are formed in nuclear reactors; californium-253 is a β-emitter and the rest are α-emitters. The isotopes with even mass numbers (250Cf, 252Cf and 254Cf) have a high rate of spontaneous fission, especially 254Cf of which 99.7% decays by spontaneous fission. Californium-249 has a relatively long half-life (352 years), weak spontaneous fission and strong γ-emission that facilitates its identification. 249Cf is not formed in large quantities in a nuclear reactor because of the slow β-decay of the parent isotope 249Bk and a large cross section of interaction with neutrons, but it can be accumulated in the isotopically pure form as the β-decay product of (pre-selected) 249Bk. Californium produced by reactor-irradiation of plutonium mostly consists of 250Cf and 252Cf, the latter being predominant for large neutron fluences, and its study is hindered by the strong neutron radiation. Among the 18 known isotopes of einsteinium with mass numbers from 240 to 257, the most affordable is 253Es. It is an α-emitter with a half-life of 20.47 days, a relatively weak γ-emission and small spontaneous fission rate as compared with the isotopes of californium. Prolonged neutron irradiation also produces a long-lived isotope 254Es (t1/2 = 275.5 days). Twenty isotopes of fermium are known with mass numbers of 241–260. 254Fm, 255Fm and 256Fm are α-emitters with a short half-life (hours), which can be isolated in significant amounts. 257Fm (t1/2 = 100 days) can accumulate upon prolonged and strong irradiation. All these isotopes are characterized by high rates of spontaneous fission. Among the 17 known isotopes of mendelevium (mass numbers from 244 to 260), the most studied is 256Md, which mainly decays through the electron capture (α-radiation is ≈10%) with the half-life of 77 minutes. Another alpha emitter, 258Md, has a half-life of 53 days. Both these isotopes are produced from rare einsteinium (253Es and 255Es respectively), that therefore limits their availability. Long-lived isotopes of nobelium and isotopes of lawrencium (and of heavier elements) have relatively short half-lives. For nobelium, 11 isotopes are known with mass numbers 250–260 and 262. The chemical properties of nobelium and lawrencium were studied with 255No (t1/2 = 3 min) and 256Lr (t1/2 = 35 s). The longest-lived nobelium isotope, 259No, has a half-life of approximately 1 hour. Lawrencium has 13 known isotopes with mass numbers 251–262 and 266. The most stable of them all is 266Lr with a half life of 11 hours. Among all of these, the only isotopes that occur in sufficient quantities in nature to be detected in anything more than traces and have a measurable contribution to the atomic weights of the actinides are the primordial 232Th, 235U, and 238U, and three long-lived decay products of natural uranium, 230Th, 231Pa, and 234U. Natural thorium consists of 0.02(2)% 230Th and 99.98(2)% 232Th; natural protactinium consists of 100% 231Pa; and natural uranium consists of 0.0054(5)% 234U, 0.7204(6)% 235U, and 99.2742(10)% 238U. Formation in nuclear reactors The figure buildup of actinides is a table of nuclides with the number of neutrons on the horizontal axis (isotopes) and the number of protons on the vertical axis (elements). The red dot divides the nuclides in two groups, so the figure is more compact. Each nuclide is represented by a square with the mass number of the element and its half-time. Naturally existing actinide isotopes (Th, U) are marked with a bold border, alpha emitters have a yellow colour, and beta emitters have a blue colour. Pink indicates electron capture (236Np), whereas white stands for a long-lasting metastable state (242Am). The formation of actinide nuclides is primarily characterised by: Neutron capture reactions (n,γ), which are represented in the figure by a short right arrow. The (n,2n) reactions and the less frequently occurring (γ,n) reactions are also taken into account, both of which are marked by a short left arrow. Even more rarely and only triggered by fast neutrons, the (n,3n) reaction occurs, which is represented

on Broadway on February 10, 1949, at the Morosco Theatre, directed by Elia Kazan, and starring Lee J. Cobb as Willy Loman, Mildred Dunnock as Linda, Arthur Kennedy as Biff, and Cameron Mitchell as Happy. The play was commercially successful and critically acclaimed, winning a Tony Award for Best Author, the New York Drama Circle Critics' Award, and the Pulitzer Prize for Drama. It was the first play to win all three of these major awards. The play was performed 742 times. In 1949, Miller exchanged letters with Eugene O'Neill regarding Miller's production of All My Sons. O'Neill had sent Miller a congratulatory telegram; in response, he wrote a letter that consisted of a few paragraphs detailing his gratitude for the telegram, apologizing for not responding earlier, and inviting Eugene to the opening of Death of a Salesman. O'Neill replied, accepting the apology, but declining the invitation, explaining that his Parkinson's disease made it difficult to travel. He ended the letter with an invitation to Boston, a trip that never occurred. Critical years In 1955, a one-act version of Miller's verse drama A View from the Bridge opened on Broadway in a joint bill with one of Miller's lesser-known plays, A Memory of Two Mondays. The following year, Miller revised A View from the Bridge as a two-act prose drama, which Peter Brook directed in London. A French-Italian co-production Vu du pont, based on the play, was released in 1962. Marriages and family In June 1956, Miller left his first wife, Mary Slattery, whom he had married in 1940, and wed film star Marilyn Monroe. They had met in 1951, had a brief affair, and remained in contact since. Monroe had just turned 30 when they married; she never had a real family of her own and was eager to join the family of her new husband. Monroe began to reconsider her career and the fact that trying to manage it made her feel helpless. She admitted to Miller, "I hate Hollywood. I don't want it any more. I want to live quietly in the country and just be there when you need me. I can't fight for myself any more." Monroe converted to Judaism to "express her loyalty and get close to both Miller and his parents", writes biographer Jeffrey Meyers. She told her close friend, Susan Strasberg: "I can identify with the Jews. Everybody's always out to get them, no matter what they do, like me." Soon after Monroe converted, Egypt banned all of her movies. Away from Hollywood and the culture of celebrity, Monroe's life became more normal; she began cooking, keeping house and giving Miller more attention and affection than he had been used to. Later that year, Miller was subpoenaed by the HCUA, and Monroe accompanied him. In her personal notes, she wrote about her worries during this period: Miller began work on writing the screenplay for The Misfits in 1960, directed by John Huston and starring Monroe but it was during the filming that Miller and Monroe's relationship hit difficulties, and he later said that the filming was one of the lowest points in his life. Monroe was taking drugs to help her sleep and more drugs to help her wake up, which caused her to arrive on the set late and then have trouble remembering her lines. Huston was unaware that Miller and Monroe were having problems in their private life. He recalled later, "I was impertinent enough to say to Arthur that to allow her to take drugs of any kind was criminal and utterly irresponsible. Shortly after that I realized that she wouldn't listen to Arthur at all; he had no say over her actions." Shortly before the film's premiere in 1961, Miller and Monroe divorced after five years of marriage. Nineteen months later, on August 5, 1962, Monroe died of a likely drug overdose. Huston, who had also directed her in her first major role in The Asphalt Jungle in 1950, and who had seen her rise to stardom, put the blame for her death on her doctors as opposed to the stresses of being a star: "The girl was an addict of sleeping pills and she was made so by the God-damn doctors. It had nothing to do with the Hollywood set-up." Miller married photographer Inge Morath in February 1962. She had worked as a photographer documenting the production of The Misfits. The first of their two children, Rebecca, was born September 15, 1962. Their son, Daniel, was born with Down syndrome in November 1966. Against his wife's wishes, Miller had him institutionalized, first at a home for infants in New York City, and then at the Southbury Training School in Connecticut. Though Morath visited Daniel often, Miller never visited him at the school and rarely spoke of him. Miller and Inge remained together until her death in 2002. Arthur Miller's son-in-law, actor Daniel Day-Lewis, is said to have visited Daniel frequently, and to have persuaded Arthur Miller to meet with him. HUAC controversy and The Crucible In 1952, Elia Kazan appeared before the House Un-American Activities Committee (HUAC). Kazan named eight members of the Group Theatre, including Clifford Odets, Paula Strasberg, Lillian Hellman, J. Edward Bromberg, and John Garfield, who in recent years had been fellow members of the Communist Party. Miller and Kazan were close friends throughout the late 1940s and early 1950s, but after Kazan's testimony to the HUAC, the pair's friendship ended. After speaking with Kazan about his testimony, Miller traveled to Salem, Massachusetts, to research the witch trials of 1692. He and Kazan did not speak to each other for the next ten years. Kazan later defended his own actions through his film On the Waterfront, in which a dockworker heroically testifies against a corrupt union boss. Miller would retaliate to Kazan's work by writing A View from the Bridge, a play where a longshoreman outs his co-workers motivated only by jealousy and greed. He sent a copy of the initial script to Kazan and when the director asked in jest to direct the movie, Miller replied "I only sent you the script to let you know what I think of Stool-Pigeons." In The Crucible, Miller likened the situation with the House Un-American Activities Committee to the witch hunt in Salem in 1692. The play opened at the Martin Beck Theatre on Broadway on January 22, 1953. Though widely considered only somewhat successful at the time of its release, today The Crucible is Miller's most frequently produced work throughout the world. It was adapted into an opera by Robert Ward in 1961. The HUAC took an interest in Miller himself not long after The Crucible opened, denying him a passport to attend the play's London opening in 1954. When Miller applied in 1956 for a routine renewal of his passport, the House Un-American Activities Committee used this opportunity to subpoena him to appear before the committee. Before appearing, Miller asked the committee not to ask him to name names, to which the chairman, Francis E. Walter (D-PA) agreed. When Miller attended the hearing, to which Monroe accompanied him, risking her own career, he gave the committee a detailed account of his political activities. Reneging on the chairman's promise, the committee demanded the names of friends and colleagues who had participated in similar activities. Miller refused to comply, saying "I could not use the name of another person and bring trouble on him." As a result, a judge found Miller guilty of contempt of Congress in May 1957. Miller was sentenced to a fine and a prison sentence, blacklisted, and disallowed a US passport. In August 1958, his conviction was overturned by the court of appeals, which ruled that Miller had been misled by the chairman of the HUAC. Miller's experience with the HUAC affected him throughout his life. In the late 1970s, he joined other celebrities (including William Styron and Mike Nichols) who were brought together by the journalist Joan Barthel. Barthel's coverage of the highly publicized Barbara Gibbons murder case helped raise bail for Gibbons' son Peter Reilly, who had been convicted of his mother's murder based on what many felt was a coerced confession and little other evidence. Barthel documented the case in her book A Death in Canaan, which was made as a television film of the same name and broadcast in 1978. City Confidential, an A&E Network series, produced an episode about the murder, postulating that part of the reason Miller took such an active interest (including supporting Reilly's defense and using his own celebrity to bring attention to Reilly's plight) was because he had felt similarly persecuted in his run-ins with the HUAC. He sympathized with Reilly, whom he firmly believed to be innocent and to have been railroaded by the Connecticut State Police and the Attorney General who had initially prosecuted the case. Later career In 1964, After the Fall was produced, and is said to be a deeply personal view of Miller's experiences during his marriage to Monroe. The play reunited Miller with his former friend Kazan: they collaborated on both the script and the direction. After the Fall opened on January 23, 1964, at the ANTA Theatre in Washington Square Park amid a flurry of publicity and outrage at putting a Monroe-like character, called Maggie, on stage. Robert Brustein, in a review in the New Republic, called After the Fall "a three and one half hour breach of taste, a confessional autobiography of embarrassing explicitness ... there is a misogynistic strain in the play which the author does not seem to recognize. ... He has created a shameless piece of tabloid gossip, an act of exhibitionism which makes us all voyeurs, ... a wretched piece of dramatic writing." That same year, Miller produced Incident at Vichy. In 1965, Miller was elected the first American president of PEN International, a position which he held for four years. A year later, Miller organized the 1966 PEN congress in New York City. Miller also wrote the penetrating family drama, The Price, produced in 1968. It was Miller's most successful play since Death of a Salesman. In 1968, Miller attended the Democratic National Convention as a delegate for Eugene McCarthy. In 1969, Miller's works were banned in the Soviet Union after he campaigned for the freedom of dissident writers. Throughout the 1970s, Miller spent much of his time experimenting with the theatre, producing one-act plays such as Fame and The Reason Why, and traveling with his wife, producing In the Country and Chinese Encounters with her. Both his 1972 comedy The Creation of the World and Other Business and its musical adaptation, Up from Paradise, were critical and commercial failures. Miller was an unusually articulate commentator on his own work. In 1978 he published a collection of his Theater Essays, edited by Robert A. Martin and with a foreword by Miller. Highlights of the collection included Miller's introduction to his Collected Plays, his reflections on the theory of tragedy, comments on the McCarthy Era, and pieces

regarded All My Sons as "a very depressing play in a time of great optimism" and that positive reviews from Brooks Atkinson of The New York Times had saved it from failure. In 1948, Miller built a small studio in Roxbury, Connecticut. There, in less than a day, he wrote Act I of Death of a Salesman. Within six weeks, he completed the rest of the play, one of the classics of world theater. Death of a Salesman premiered on Broadway on February 10, 1949, at the Morosco Theatre, directed by Elia Kazan, and starring Lee J. Cobb as Willy Loman, Mildred Dunnock as Linda, Arthur Kennedy as Biff, and Cameron Mitchell as Happy. The play was commercially successful and critically acclaimed, winning a Tony Award for Best Author, the New York Drama Circle Critics' Award, and the Pulitzer Prize for Drama. It was the first play to win all three of these major awards. The play was performed 742 times. In 1949, Miller exchanged letters with Eugene O'Neill regarding Miller's production of All My Sons. O'Neill had sent Miller a congratulatory telegram; in response, he wrote a letter that consisted of a few paragraphs detailing his gratitude for the telegram, apologizing for not responding earlier, and inviting Eugene to the opening of Death of a Salesman. O'Neill replied, accepting the apology, but declining the invitation, explaining that his Parkinson's disease made it difficult to travel. He ended the letter with an invitation to Boston, a trip that never occurred. Critical years In 1955, a one-act version of Miller's verse drama A View from the Bridge opened on Broadway in a joint bill with one of Miller's lesser-known plays, A Memory of Two Mondays. The following year, Miller revised A View from the Bridge as a two-act prose drama, which Peter Brook directed in London. A French-Italian co-production Vu du pont, based on the play, was released in 1962. Marriages and family In June 1956, Miller left his first wife, Mary Slattery, whom he had married in 1940, and wed film star Marilyn Monroe. They had met in 1951, had a brief affair, and remained in contact since. Monroe had just turned 30 when they married; she never had a real family of her own and was eager to join the family of her new husband. Monroe began to reconsider her career and the fact that trying to manage it made her feel helpless. She admitted to Miller, "I hate Hollywood. I don't want it any more. I want to live quietly in the country and just be there when you need me. I can't fight for myself any more." Monroe converted to Judaism to "express her loyalty and get close to both Miller and his parents", writes biographer Jeffrey Meyers. She told her close friend, Susan Strasberg: "I can identify with the Jews. Everybody's always out to get them, no matter what they do, like me." Soon after Monroe converted, Egypt banned all of her movies. Away from Hollywood and the culture of celebrity, Monroe's life became more normal; she began cooking, keeping house and giving Miller more attention and affection than he had been used to. Later that year, Miller was subpoenaed by the HCUA, and Monroe accompanied him. In her personal notes, she wrote about her worries during this period: Miller began work on writing the screenplay for The Misfits in 1960, directed by John Huston and starring Monroe but it was during the filming that Miller and Monroe's relationship hit difficulties, and he later said that the filming was one of the lowest points in his life. Monroe was taking drugs to help her sleep and more drugs to help her wake up, which caused her to arrive on the set late and then have trouble remembering her lines. Huston was unaware that Miller and Monroe were having problems in their private life. He recalled later, "I was impertinent enough to say to Arthur that to allow her to take drugs of any kind was criminal and utterly irresponsible. Shortly after that I realized that she wouldn't listen to Arthur at all; he had no say over her actions." Shortly before the film's premiere in 1961, Miller and Monroe divorced after five years of marriage. Nineteen months later, on August 5, 1962, Monroe died of a likely drug overdose. Huston, who had also directed her in her first major role in The Asphalt Jungle in 1950, and who had seen her rise to stardom, put the blame for her death on her doctors as opposed to the stresses of being a star: "The girl was an addict of sleeping pills and she was made so by the God-damn doctors. It had nothing to do with the Hollywood set-up." Miller married photographer Inge Morath in February 1962. She had worked as a photographer documenting the production of The Misfits. The first of their two children, Rebecca, was born September 15, 1962. Their son, Daniel, was born with Down syndrome in November 1966. Against his wife's wishes, Miller had him institutionalized, first at a home for infants in New York City, and then at the Southbury Training School in Connecticut. Though Morath visited Daniel often, Miller never visited him at the school and rarely spoke of him. Miller and Inge remained together until her death in 2002. Arthur Miller's son-in-law, actor Daniel Day-Lewis, is said to have visited Daniel frequently, and to have persuaded Arthur Miller to meet with him. HUAC controversy and The Crucible In 1952, Elia Kazan appeared before the House Un-American Activities Committee (HUAC). Kazan named eight members of the Group Theatre, including Clifford Odets, Paula Strasberg, Lillian Hellman, J. Edward Bromberg, and John Garfield, who in recent years had been fellow members of the Communist Party. Miller and Kazan were close friends throughout the late 1940s and early 1950s, but after Kazan's testimony to the HUAC, the pair's friendship ended. After speaking with Kazan about his testimony, Miller traveled to Salem, Massachusetts, to research the witch trials of 1692. He and Kazan did not speak to each other for the next ten years. Kazan later defended his own actions through his film On the Waterfront, in which a dockworker heroically testifies against a corrupt union boss. Miller would retaliate to Kazan's work by writing A View from the Bridge, a play where a longshoreman outs his co-workers motivated only by jealousy and greed. He sent a copy of the initial script to Kazan and when the director asked in jest to direct the movie, Miller replied "I only sent you the script to let you know what I think of Stool-Pigeons." In The Crucible, Miller likened the situation with the House Un-American Activities Committee to the witch hunt in Salem in 1692. The play opened at the Martin Beck Theatre on Broadway on January 22, 1953. Though widely considered only somewhat successful at the time of its release, today The Crucible is Miller's most frequently produced work throughout the world. It was adapted into an opera by Robert Ward in 1961. The HUAC took an interest in Miller himself not long after The Crucible opened, denying him a passport to attend the play's London opening in 1954. When Miller applied in 1956 for a routine renewal of his passport, the House Un-American Activities Committee used this opportunity to subpoena him to appear before the committee. Before appearing, Miller asked the committee not to ask him to name names, to which the chairman, Francis E. Walter (D-PA) agreed. When Miller attended the hearing, to which Monroe accompanied him, risking her own career, he gave the committee a detailed account of his political activities. Reneging on the chairman's promise, the committee demanded the names of friends and colleagues who had participated in similar activities. Miller refused to comply, saying "I could not use the name of another person and bring trouble on him." As a result, a judge found Miller guilty of contempt of Congress in May 1957. Miller was sentenced to a fine and a prison sentence, blacklisted, and disallowed a US passport. In August 1958, his conviction was overturned by the court of appeals, which ruled that Miller had been misled by the chairman of the HUAC. Miller's experience with the HUAC affected him throughout his life. In the late 1970s, he joined other celebrities (including William Styron and Mike Nichols) who were brought together by the journalist Joan Barthel. Barthel's coverage of the highly publicized Barbara Gibbons murder case helped raise bail for Gibbons' son Peter Reilly, who had been convicted of his mother's murder based on what many felt was a coerced confession and little other evidence. Barthel documented the case in her book A Death in Canaan, which was made as a television film of the same name and broadcast

contrast the markings of piano represent the protagonist. Diabelli Variations The composition for which Diabelli is now best known was actually written as part of an adventuring story. In 1819, as a promotional idea, he decided to try to publish a volume of variations on a "patriotic" waltz he had penned expressly for this purpose, with one variation by every important Austrian composer living at the time, as well as several significant non-Austrians. The combined contributions would be published in an anthology called Vaterländischer Künstlerverein. Fifty-one composers responded with pieces, including Beethoven, Schubert, Archduke Rudolph of Austria, Franz Xaver Wolfgang Mozart (jun.), Moritz, Prince of Dietrichstein, Heinrich Eduard Josef Baron von Lannoy, Ignaz Franz Baron von Mosel, Carl Czerny, Johann Nepomuk Hummel, Ignaz Moscheles, Simon Sechter, and the eight-year-old Franz Liszt (although it seems Liszt was not invited personally, but his teacher Czerny arranged for him to be involved). Czerny was also enlisted to write a coda. Beethoven, however, instead of providing just one variation, provided 33, and his formed Part I of Vaterländischer Künstlerverein. They constitute what is generally regarded as one of the greatest of Beethoven's piano pieces and as the greatest set of variations of their time, and are generally known simply as the Diabelli Variations, Op. 120. The other 50 variations were published as Part II of Vaterländischer Künstlerverein. Cultural references A sonatina of Diabelli's, presumably Sonatina in F major, Op. 168, No. 1 (I: Moderato cantabile), provides the title and a motif for the French novella Moderato Cantabile by Marguerite Duras. See also Romantic guitar References Published music and further reading Anton Diabelli's guitar works – a thematic catalogue with an introduction; Doctoral Thesis by Jukka Savijoki (Sibelius Academy; 1996) Anton Diabelli's Guitar Works: A Thematic Catalogue by Jukka Savijoki (Editions Orphée) Rischel & Birket-Smith's Collection of guitar music Det Kongelige Bibliotek, Denmark Boije Collection The Music Library of Sweden www.karadar.com/Dictionary/diabelli.html Free scores at the Mutopia Project External links 1781 births 1858 deaths 19th-century classical

of well-known Classical works, including an operetta called Adam in der Klemme, several masses, songs and numerous piano and classical guitar pieces. Numerically his guitar pieces form the largest part of his works. His pieces for piano four hands are popular. Diabelli's composition Pleasures of Youth: Six Sonatinas is a collection of six sonatinas depicting a struggle between unknown opposing forces. This is suggested by the sharp and frequent change in dynamics from forte to piano. When forte is indicated the pianist is meant to evoke a sense of wickedness, thus depicting the antagonist. In contrast the markings of piano represent the protagonist. Diabelli Variations The composition for which Diabelli is now best known was actually written as part of an adventuring story. In 1819, as a promotional idea, he decided to try to publish a volume of variations on a "patriotic" waltz he had penned expressly for this purpose, with one variation by every important Austrian composer living at the time, as well as several significant non-Austrians. The combined contributions would be published in an anthology called Vaterländischer Künstlerverein. Fifty-one composers responded with pieces, including Beethoven, Schubert, Archduke Rudolph of Austria, Franz Xaver Wolfgang Mozart (jun.), Moritz, Prince of Dietrichstein, Heinrich Eduard Josef Baron von Lannoy, Ignaz Franz Baron von Mosel, Carl Czerny, Johann Nepomuk Hummel, Ignaz Moscheles, Simon Sechter, and the eight-year-old Franz Liszt (although it seems Liszt was not invited personally, but his teacher Czerny arranged for him to be involved). Czerny was also enlisted to write a coda. Beethoven, however, instead of providing just one variation, provided 33, and his formed Part I of Vaterländischer Künstlerverein. They constitute what is generally regarded as one of the greatest of Beethoven's piano pieces and as the greatest set of variations of their time, and are generally known simply as the Diabelli Variations, Op. 120. The other 50 variations were published as Part II of Vaterländischer Künstlerverein. Cultural references A sonatina of Diabelli's, presumably Sonatina in F major, Op. 168, No. 1 (I: Moderato cantabile), provides the title and a motif for the French novella Moderato Cantabile by Marguerite Duras. See also Romantic guitar References Published

Court Justice Thurgood Marshall. Senate hearings on his confirmation were initially completed with Thomas's good character being presented as a primary qualification for the high court because he had only been a judge for slightly more than one year. There had been little organized opposition to Thomas' nomination, and his confirmation seemed assured until a report of a private interview of Hill by the FBI was leaked to the press. The hearings were then reopened, and Hill was called to publicly testify. Hill said on October 11, 1991, in televised hearings that Thomas had sexually harassed her while he was her supervisor at the Department of Education and the EEOC. When questioned on why she followed Thomas to the second job after he had already allegedly harassed her, she said working in a reputable position within the civil rights field had been her ambition. The position was appealing enough to inhibit her from going back into private practice with her previous firm. She said that she only realized later in her life that the choice had represented poor judgment on her part, but that "at that time, it appeared that the sexual overtures ... had ended." According to Hill, Thomas asked her out socially many times during her two years of employment as his assistant, and, after she declined his requests, he used work situations to discuss sexual subjects. "He spoke about ... such matters as women having sex with animals and films showing group sex or rape scenes," she said, adding that on several occasions Thomas graphically described "his own sexual prowess" and the details of his anatomy. Hill also recounted an instance in which Thomas examined a can of Coke on his desk and asked, "Who has put pubic hair on my Coke?" During the hearing, Republican Senator Orrin Hatch implied that "Hill was working in tandem with 'slick lawyers' and interest groups bent on destroying Thomas' chances to join the court." Thomas said he had considered Hill a friend whom he had helped at every turn, so when accusations of harassment came from her they were particularly hurtful and he said, "I lost the belief that if I did my best, all would work out." Four female witnesses reportedly waited in the wings to support Hill's credibility, but they were not called, due to what the Los Angeles Times described as a private, compromise deal between Republicans and the Senate Judiciary Committee chair, Democrat Joe Biden. Hill agreed to take a polygraph test. While senators and other authorities noted that polygraph results cannot be relied upon and are inadmissible in courts, Hill's results did support her statements. Thomas did not take a polygraph test. He made a vehement and complete denial, saying that he was being subjected to a "high-tech lynching for uppity blacks" by white liberals who were seeking to block a black conservative from taking a seat on the Supreme Court. After extensive debate, the United States Senate confirmed Thomas to the Supreme Court by a vote of 52–48, the narrowest margin since the 19th century. Thomas' supporters questioned Hill's credibility, claiming she was delusional or had been spurned, leading her to seek revenge. They cited the time delay of ten years between the alleged behavior by Thomas and Hill's accusations, and noted that Hill had followed Thomas to a second job and later had personal contacts with Thomas, including giving him a ride to an airport—behavior which they said would be inexplicable if Hill's allegations were true. Hill countered that she had come forward because she felt an obligation to share information on the character and actions of a person who was being considered for the Supreme Court. She testified that after leaving the EEOC, she had had two "inconsequential" phone conversations with Thomas, and had seen him personally on two occasions, once to get a job reference and the second time when he made a public appearance in Oklahoma where she was teaching. Doubts about the veracity of Hill's 1991 testimony persisted long after Thomas took his seat on the Court. They were furthered by American Spectator writer David Brock in his 1993 book The Real Anita Hill, though he later recanted the claims he had made, described in his book as "character assassination," and apologized to Hill. After interviewing a number of women who alleged that Thomas had frequently subjected them to sexually explicit remarks, Wall Street Journal reporters Jane Mayer and Jill Abramson wrote Strange Justice: The Selling of Clarence Thomas, a book which concluded that Thomas had lied during his confirmation process. Richard Lacayo in his 1994 review of the book for Time magazine remarked, however, that "Their book doesn't quite nail that conclusion." In 2007, Kevin , a coauthor of another book on Thomas, remarked that what happened between Thomas and Hill was "ultimately unknowable" by others, but that it was clear that "one of them lied, period." Writing in 2007, Neil Lewis of The New York Times remarked that, "To this day, each side in the epic he-said, she-said dispute has its unmovable believers." In 2007, Thomas published his autobiography, My Grandfather's Son, in which he revisited the controversy, calling Hill his "most traitorous adversary" and saying that pro-choice liberals, who feared that he would vote to overturn Roe v. Wade if he were seated on the Supreme Court, used the scandal against him. He described Hill as touchy and apt to overreact, and her work at the EEOC as mediocre. He acknowledged that three other former EEOC employees had backed Hill's story, but said they had all left the agency on bad terms. He also wrote that Hill "was a left-winger who'd never expressed any religious sentiments whatsoever ... and the only reason why she'd held a job in the Reagan administration was because I'd given it to her." Hill denied the accusations in an op-ed in The New York Times saying she would not "stand by silently and allow [Justice Thomas], in his anger, to reinvent me." In October 2010, Thomas's wife Virginia, a conservative activist, left a voicemail at Hill's office asking that Hill apologize for her 1991 testimony. Hill initially believed the call was a hoax and referred the matter to the Brandeis University campus police who alerted the FBI. After being informed that the call was indeed from Virginia Thomas, Hill told the media that she did not believe the message was meant to be conciliatory and said, "I testified truthfully about my experience and I stand by that testimony." Virginia Thomas responded that the call had been intended as an "olive branch". Effects Shortly after the Thomas confirmation hearings, President George H. W. Bush dropped his opposition to a bill that gave harassment victims the right to seek federal damage awards, back pay, and reinstatement, and the law was passed by Congress. One year later, harassment complaints filed with the EEOC were up 50 percent and public opinion had shifted in Hill's favor. Private companies also started training programs to deter sexual harassment. When journalist Cinny Kennard asked Hill in 1991 if she would testify against Thomas all over again, Hill answered, "I'm not sure if I could have lived with myself if I had answered those questions any differently." The manner in which the Senate Judiciary Committee challenged and dismissed Hill's accusations of sexual harassment angered female politicians and lawyers. According to D.C. Congressional Delegate Eleanor Holmes Norton, Hill's treatment by the panel was a contributing factor to the large number of women elected to Congress in 1992. "Women clearly went to the polls with the notion in mind that you had to have more women in Congress," she said. In their anthology, All the Women Are White, All the Blacks Are Men, but Some of Us Are Brave, editors Gloria T. Hull, Patricia Bell-Scott, and Barbara Smith described black feminists mobilizing "a remarkable national response to the Anita Hill–Clarence Thomas controversy. In 1992, a feminist group began a nationwide fundraising campaign and then obtained matching state funds to endow a professorship at the University of Oklahoma College of Law in honor of Hill. Conservative Oklahoma state legislators reacted by demanding Hill's resignation from the university, then introducing a bill to prohibit the university from accepting donations from out-of-state residents, and finally attempting to pass legislation to close down the law school. Elmer Zinn Million, a local activist, compared Hill to Lee Harvey Oswald, the assassin of President Kennedy. Certain officials at the university attempted to revoke Hill's tenure. After five years of pressure, Hill resigned. The University of Oklahoma Law School defunded the Anita F. Hill professorship in May 1999, without the position having ever been filled. On April 25, 2019, the presidential campaign team for Joe Biden for the 2020 United States presidential election disclosed that he had called Hill to express "his regret for what she endured" in his role as the chairman of the Senate Judiciary Committee, presiding over the Thomas confirmation hearings. Hill said the call from Biden left her feeling "deeply unsatisfied". On June 13, 2019, Hill clarified that she did not consider Biden's actions disqualifying, and would be open to voting for him. In May 2020, Hill argued that sexual assault allegations made against Donald Trump as well as the sexual assault allegation against Biden should be investigated and their results "made available to the public." On September 5, 2020, it was reported that Hill had vowed to vote for Biden and to work with him on gender issues. Continued work and advocacy Hill continued to teach at the University of Oklahoma, though she spent two years as a visiting professor in California. She resigned her post in October 1996 and finished her final semester of teaching there. In her final semester, she taught a law school seminar on civil rights. An endowed chair was created in her name, but was later defunded without ever having been filled.

of Columbia Bar in 1980 and began her law career as an associate with the Washington, D.C. firm of Wald, Harkrader & Ross. In 1981, she became an attorney-adviser to Clarence Thomas, who was then the Assistant Secretary of the U.S. Department of Education's Office for Civil Rights. When Thomas became chairman of the U.S. Equal Employment Opportunity Commission (EEOC) in 1982, Hill went along to serve as his assistant, leaving the job in 1983. Work as a professor Hill then became an assistant professor at the Evangelical Christian O. W. Coburn School of Law at Oral Roberts University where she taught from 1983 to 1986. In 1986, she joined the faculty at the University of Oklahoma College of Law where she taught commercial law and contracts. In 1989 she became the first tenured African American professor at OU. She left the university in 1996 due to ongoing calls for her resignation that began after her 1992 testimony. In 1998 she became a visiting scholar at Brandeis University and, in 2015, a university professor at the school. Allegations of sexual harassment against Clarence Thomas In 1991, President George H. W. Bush nominated Clarence Thomas, a federal circuit judge, to succeed retiring Associate Supreme Court Justice Thurgood Marshall. Senate hearings on his confirmation were initially completed with Thomas's good character being presented as a primary qualification for the high court because he had only been a judge for slightly more than one year. There had been little organized opposition to Thomas' nomination, and his confirmation seemed assured until a report of a private interview of Hill by the FBI was leaked to the press. The hearings were then reopened, and Hill was called to publicly testify. Hill said on October 11, 1991, in televised hearings that Thomas had sexually harassed her while he was her supervisor at the Department of Education and the EEOC. When questioned on why she followed Thomas to the second job after he had already allegedly harassed her, she said working in a reputable position within the civil rights field had been her ambition. The position was appealing enough to inhibit her from going back into private practice with her previous firm. She said that she only realized later in her life that the choice had represented poor judgment on her part, but that "at that time, it appeared that the sexual overtures ... had ended." According to Hill, Thomas asked her out socially many times during her two years of employment as his assistant, and, after she declined his requests, he used work situations to discuss sexual subjects. "He spoke about ... such matters as women having sex with animals and films showing group sex or rape scenes," she said, adding that on several occasions Thomas graphically described "his own sexual prowess" and the details of his anatomy. Hill also recounted an instance in which Thomas examined a can of Coke on his desk and asked, "Who has put pubic hair on my Coke?" During the hearing, Republican Senator Orrin Hatch implied that "Hill was working in tandem with 'slick lawyers' and interest groups bent on destroying Thomas' chances to join the court." Thomas said he had considered Hill a friend whom he had helped at every turn, so when accusations of harassment came from her they were particularly hurtful and he said, "I lost the belief that if I did my best, all would work out." Four female witnesses reportedly waited in the wings to support Hill's credibility, but they were not called, due to what the Los Angeles Times described as a private, compromise deal between Republicans and the Senate Judiciary Committee chair, Democrat Joe Biden. Hill agreed to take a polygraph test. While senators and other authorities noted that polygraph results cannot be relied upon and are inadmissible in courts, Hill's results did support her statements. Thomas did not take a polygraph test. He made a vehement and complete denial, saying that he was being subjected to a "high-tech lynching for uppity blacks" by white liberals who were seeking to block a black conservative from taking a seat on the Supreme Court. After extensive debate, the United States Senate confirmed Thomas to the Supreme Court by a vote of 52–48, the narrowest margin since the 19th century. Thomas' supporters questioned Hill's credibility, claiming she was delusional or had been spurned, leading her to seek revenge. They cited the time delay of ten years between the alleged behavior by Thomas and Hill's accusations, and noted that Hill had followed Thomas to a second job and later had personal contacts with Thomas, including giving him a ride to an airport—behavior which they said would be inexplicable if Hill's allegations were true. Hill countered that she had come forward because she felt an obligation to share information on the character and actions of a person who was being considered for the Supreme Court. She testified that after leaving the EEOC, she had had two "inconsequential" phone conversations with Thomas, and had seen him personally on two occasions, once to get a job reference and the second time when he made a public appearance in Oklahoma where she was teaching. Doubts about the veracity of Hill's 1991 testimony persisted long after Thomas took his seat on the Court. They were furthered by American Spectator writer David Brock in his 1993 book The Real Anita Hill, though he later recanted the claims he had made, described in his book as "character assassination," and apologized to Hill. After interviewing a number of women who alleged that Thomas had frequently subjected them to sexually explicit remarks, Wall Street Journal reporters Jane Mayer and Jill Abramson wrote Strange Justice: The Selling of Clarence Thomas, a book which concluded that Thomas had lied during his confirmation process. Richard Lacayo in his 1994 review of the book for Time magazine remarked, however, that "Their book doesn't quite nail that conclusion." In 2007, Kevin , a coauthor of another book on Thomas, remarked that what happened between Thomas and Hill was "ultimately unknowable" by others, but that it was clear that "one of them lied, period." Writing in 2007, Neil Lewis of The New York Times remarked that, "To this day, each side in the epic he-said, she-said dispute has its unmovable believers." In 2007, Thomas published his autobiography, My Grandfather's Son, in which he revisited the controversy, calling Hill his "most traitorous adversary" and saying that pro-choice liberals, who feared that he would vote to overturn Roe v. Wade if he were seated on the Supreme Court, used the scandal against him. He described Hill as touchy and apt to overreact, and her work at the EEOC as mediocre. He acknowledged that three other former EEOC employees had backed Hill's story, but said they had all left the agency on bad terms. He also wrote that Hill "was a left-winger who'd never expressed any religious sentiments whatsoever ... and the only reason why she'd held a job in the Reagan administration was because I'd given it to her." Hill denied the accusations in an op-ed in The New York Times saying she would not "stand by silently and allow [Justice Thomas], in his anger, to reinvent me." In October 2010, Thomas's wife Virginia, a conservative activist, left a voicemail at Hill's office asking that Hill apologize for her 1991 testimony. Hill initially believed the call was a hoax and referred the matter to the Brandeis University campus police who alerted the FBI. After being informed that the call was indeed from Virginia Thomas, Hill told the media that she did not believe the message was meant to be conciliatory and said, "I testified truthfully about my experience and I stand by that testimony." Virginia Thomas responded that the call had been intended as an "olive branch". Effects Shortly after the Thomas confirmation hearings, President George H. W. Bush dropped his opposition to a bill that gave harassment victims the right to seek federal damage awards, back pay, and reinstatement, and the law was passed by Congress. One year later, harassment complaints filed with the EEOC were up 50 percent and public opinion had shifted in Hill's favor. Private companies also started training programs to deter sexual harassment. When journalist Cinny Kennard asked Hill in 1991 if she would testify against Thomas all over again, Hill answered, "I'm not sure if I could have lived with myself if I had answered those questions any differently." The manner in which the Senate Judiciary Committee challenged and dismissed Hill's accusations of sexual harassment angered female politicians and lawyers. According to D.C. Congressional Delegate Eleanor Holmes Norton, Hill's treatment by the panel was a contributing factor to the large number of women elected to Congress in 1992. "Women clearly went to the polls with the notion in mind that you had to have more women in Congress," she said. In their anthology, All the Women Are White, All the Blacks Are Men, but Some of Us Are Brave, editors Gloria T. Hull, Patricia Bell-Scott, and Barbara Smith described black feminists mobilizing "a remarkable national response to the Anita Hill–Clarence Thomas controversy. In 1992, a feminist group began a nationwide fundraising campaign and then obtained matching state funds to endow a professorship at the University of Oklahoma College

and musicologist (d. 1936) 1865 – Alexander Glazunov, Russian composer, conductor, and educator (d. 1936) 1868 – Hugo Eckener, German pilot and businessman (d. 1954) 1869 – Laurence Binyon, English poet, playwright, and scholar (d. 1943) 1870 – Trần Tế Xương, Vietnamese poet and satirist (d. 1907) 1872 – William Manuel Johnson, American bassist (d. 1972) 1874 – Herbert Hoover, American engineer and politician, 31st President of the United States (d. 1964) 1874 – Antanas Smetona, Lithuanian jurist and politician, President of Lithuania from 1919 to 1920 and from 1926 to 1940. (d. 1944) 1877 – Frank Marshall, American chess player and author (d. 1944) 1878 – Alfred Döblin, Polish-German physician and author (d. 1957) 1880 – Robert L. Thornton, American businessman and politician, Mayor of Dallas (d. 1964) 1884 – Panait Istrati, Romanian journalist and author (d. 1935) 1888 – Prince Christopher of Greece and Denmark (d. 1940) 1889 – Charles Darrow, American game designer, created Monopoly (d. 1967) 1889 – Zofia Kossak-Szczucka, Polish writer and member of the WW II Polish Resistance (d. 1968) 1890 – Angus Lewis Macdonald, Canadian lawyer and politician, 12th Premier of Nova Scotia (d. 1954) 1894 – V. V. Giri, Indian lawyer and politician, 4th President of India (d. 1980) 1895 – Hammy Love, Australian cricketer (d. 1969) 1897 – John W. Galbreath, American businessman and philanthropist, founded Darby Dan Farm (d. 1988) 1897 – Jack Haley, American actor and singer (d. 1979) 1900 – Arthur Porritt, Baron Porritt, New Zealand physician and politician, 11th Governor-General of New Zealand (d. 1994) 1901–present 1902 – Norma Shearer, Canadian-American actress (d. 1983) 1902 – Curt Siodmak, German-English author and screenwriter (d. 2000) 1902 – Arne Tiselius, Swedish biochemist and academic, Nobel Prize laureate (d. 1971) 1903 – Ward Moore, American author (d. 1978) 1905 – Era Bell Thompson, American journalist and author (d. 1986) 1907 – Su Yu, Chinese general and politician (d. 1984) 1908 – Rica Erickson, Australian botanist, historian, and author (d. 2009) 1908 – Billy Gonsalves, American soccer player (d. 1977) 1909 – Leo Fender, American businessman, founded Fender Musical Instruments Corporation (d. 1991) 1909 – Richard J. Hughes, American politician, 45th Governor of New Jersey, and Chief Justice of the New Jersey Supreme Court (d. 1992) 1910 – Guy Mairesse, French racing driver (d. 1954) 1911 – Leonidas Andrianopoulos, Greek footballer (d. 2011) 1911 – A. N. Sherwin-White, English historian and author (d. 1993) 1912 – Jorge Amado, Brazilian novelist and poet (d. 2001) 1913 – Noah Beery Jr., American actor (d. 1994) 1913 – Kalevi Kotkas, Estonian-Finnish high jumper and discus thrower (d. 1983) 1913 – Wolfgang Paul, German physicist and academic, Nobel Prize laureate (d. 1993) 1914 – Jeff Corey, American actor and director (d. 2002) 1914 – Carlos Menditeguy, Argentinian racing driver and polo player (d. 1973) 1914 – Ray Smith, English cricketer (d. 1996) 1918 – Eugene P. Wilkinson, American admiral (d. 2013) 1920 – Red Holzman, American basketball player and coach (d. 1998) 1922 – Al Alberts, American pop singer (The Four Aces) and composer (d. 2009) 1923 – Bill Doolittle, American football player and coach (d. 2014) 1923 – Rhonda Fleming, American actress (d. 2020) 1923 – Fred Ridgway, English cricketer and footballer (d. 2015) 1923 – SM Sultan, Bangladeshi painter and illustrator (d. 1994) 1924 – Nancy Buckingham, English author 1924 – Martha Hyer, American actress (d. 2014) 1924 – Jean-François Lyotard, French philosopher, sociologist, and literary theorist (d. 1998) 1925 – George Cooper, English general (d. 2020) 1926 – Marie-Claire Alain, French organist and educator (d. 2013) 1926 – Carol Ruth Vander Velde, American mathematician (d. 1972) 1927 – Jimmy Martin, American singer and guitarist (d. 2005) 1927 – Vernon Washington, American actor (d. 1988) 1928 – Jimmy Dean, American singer, actor, and businessman, founded the Jimmy Dean Food Company (d. 2010) 1928 – Eddie Fisher, American singer and actor (d. 2010) 1928 – Gerino Gerini, Italian racing driver (d. 2013) 1928 – Gus Mercurio, American-Australian actor (d. 2010) 1930 – Barry Unsworth, English-Italian author and academic (d. 2012) 1931 – Dolores Alexander, American journalist and activist (d. 2008) 1931 – Tom Laughlin, American actor, director, producer, and screenwriter (d. 2013) 1932 – Alexander Goehr, English composer and academic 1932 – Gaudencio Rosales, Filipino cardinal 1933 – Elizabeth Butler-Sloss, Baroness Butler-Sloss, English lawyer and judge 1933 – Rocky Colavito, American baseball player and sportscaster 1933 – Keith Duckworth, English engineer, founded Cosworth (d. 2005) 1934 – Tevfik Kış, Turkish wrestler and trainer 1935 – Ian Stewart, Baron Stewartby, English politician, Minister of State for the Armed Forces (d. 2018) 1935 – Ad van Luyn, Dutch bishop 1936 – Malene Schwartz, Danish actress 1937 – Anatoly Sobchak, Russian scholar and politician, Mayor of Saint Petersburg (d. 2000) 1938 – Tony Ross, English author and illustrator 1939 – Kate O'Mara, English actress (d. 2014) 1939 – Charlie Rose, American lawyer and politician (d. 2012) 1940 – Bobby Hatfield, American singer-songwriter (d. 2003) 1940 – Sid Waddell, English sportscaster (d. 2012) 1941 – Anita Lonsbrough, English swimmer and journalist 1941 – Susan Dorothea White, Australian painter and sculptor 1942 – Speedy Duncan, American football player (d. 2021) 1942 – Betsey Johnson, American fashion designer 1942 – Michael Pepper, English physicist and engineer 1943 – Louise Forestier, Canadian singer-songwriter and actress 1943 – Jimmy Griffin, American singer-songwriter and guitarist (d. 2005) 1943 – Michael Mantler, American trumpet player and composer 1943 – Shafqat Rana, Indian-Pakistani cricketer 1943 – Ronnie Spector, American singer-songwriter (d. 2022) 1947 – Ian Anderson, Scottish-English singer-songwriter and guitarist 1947 – Anwar Ibrahim, Malaysian academic and politician, 7th Deputy Prime Minister of Malaysia 1947 – John Spencer, English rugby player and manager 1947 – Alan Ward, English cricketer 1948 – Nick Stringer, English actor 1950 – Patti Austin, American singer-songwriter 1951 – Juan Manuel Santos, Colombian businessman and politician, 59th President of Colombia 1952 – Daniel Hugh Kelly, American actor 1952 – Diane Venora, American actress 1954 – Peter Endrulat, German footballer 1954 – Rick Overton, American screenwriter, actor and comedian 1955 – Jim Mees, American set designer (d. 2013) 1955 – Mel Tiangco, Filipino journalist and talk show host 1956 – Dianne Fromholtz, Australian tennis player 1956 – José Luis Montes, Spanish footballer and manager (d. 2013) 1956 – Fred Ottman, American wrestler 1956 – Charlie Peacock, American singer-songwriter, pianist, and producer 1956 – Perween Warsi, Indian-English businesswoman 1957 – Fred Ho, American saxophonist, composer, and playwright (d. 2014) 1957 – Andres Põime, Estonian architect 1957 – Aqeel Abbas Jafari, Pakistani writer, poet, architect and chief editor Urdu Dictionary Board 1958 – Michael Dokes, American boxer (d. 2012) 1958 – Jack Richards, English cricketer, coach, and manager 1958 – Rosie Winterton, English nurse and politician, Shadow Leader of the House of Commons 1959 – Rosanna Arquette, American actress, director, and producer 1959 – Albert Owen, Welsh sailor and politician 1959 – Mark Price, English drummer 1959 – Florent Vollant, Canadian singer-songwriter 1960 – Antonio Banderas, Spanish actor and producer 1960 – Annely Ojastu, Estonian sprinter and long jumper 1960 – Kenny Perry, American golfer 1961 – Jon Farriss, Australian drummer, songwriter, and producer 1962 – Suzanne Collins, American author and screenwriter 1962 – Julia Fordham, English singer-songwriter 1963 – Phoolan Devi, Indian lawyer and politician (d. 2001) 1963 – Anton Janssen, Dutch footballer and coach 1963 – Andrew Sullivan, English-American journalist and author 1964 – Aaron Hall, American singer-songwriter 1964 – Kåre Kolve, Norwegian saxophonist and composer 1964 – Hiro Takahashi, Japanese singer-songwriter and

effective end. 1944 – World War II: The Battle of Narva ends with a defensive German victory. 1948 – Candid Camera makes its television debut after being on radio for a year as Candid Microphone. 1949 – An amendment to the National Security Act of 1947 enhances the authority of the United States Secretary of Defense over the Army, Navy and Air Force, and replaces the National Military Establishment with the Department of Defense. 1953 – First Indochina War: The French Union withdraws its forces from Operation Camargue against the Viet Minh in central Vietnam. 1954 – At Massena, New York, the groundbreaking ceremony for the Saint Lawrence Seaway is held. 1961 – Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover. 1966 – The Heron Road Bridge collapses while being built, killing nine workers in the deadliest construction accident in both Ottawa and Ontario. 1969 – A day after murdering Sharon Tate and four others, members of Charles Manson's cult kill Leno and Rosemary LaBianca. 1971 – The Society for American Baseball Research is founded in Cooperstown, New York. 1977 – In Yonkers, New York, 24-year-old postal employee David Berkowitz ("Son of Sam") is arrested for a series of killings in the New York City area over the period of one year. 1978 – Three members of the Ulrich family are killed in an accident. This leads to the Ford Pinto litigation. 1981 – Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children. 1988 – Japanese American internment: U.S. President Ronald Reagan signs the Civil Liberties Act of 1988, providing $20,000 payments to Japanese Americans who were either interned in or relocated by the United States during World War II. 1990 – The Magellan space probe reaches Venus. 1993 – Two earthquakes affect New Zealand. A 7.0 shock (intensity VI (Strong)) in the South Island was followed nine hours later by a 6.4 event (intensity VII (Very strong)) in the North Island. 1995 – Oklahoma City bombing: Timothy McVeigh and Terry Nichols are indicted for the bombing. Michael Fortier pleads guilty in a plea-bargain for his testimony. 1997 – Sixteen people are killed when Formosa Airlines Flight 7601 crashes near Beigan Airport in the Matsu Islands of Taiwan. 1998 – HRH Prince Al-Muhtadee Billah is proclaimed the crown prince of Brunei with a Royal Proclamation. 1999 – Los Angeles Jewish Community Center shooting. 2001 – The 2001 Angola train attack occurred, causing 252 deaths. 2001 – Space Shuttle program: The Space Shuttle Discovery is launched on STS-105 to the International Space Station, carrying the astronauts of Expedition 3 to replace the crew of Expedition 2. 2003 – The Okinawa Urban Monorail is opened in Naha, Okinawa. 2009 – Twenty people are killed in Handlová, Trenčín Region, in the deadliest mining disaster in Slovakia's history. 2012 – The Marikana massacre begins near Rustenburg, South Africa, resulting in the deaths of 47 people. 2014 – Forty people are killed when Sepahan Airlines Flight 5915 crashes at Tehran's Mehrabad International Airport. 2018 – Horizon Air employee Richard Russell hijacks and performs an unauthorized takeoff on a Horizon Air Bombardier Dash 8 Q400 plane at Seattle–Tacoma International Airport in Washington, flying it for more than an hour before crashing the plane and killing himself on Ketron Island in Puget Sound. 2019 – Thirty-two are killed and 1,000,000 are evacuated as Typhoon Lekima makes landfall in Zhejiang, China. Earlier it had caused flooding in the Philippines. 2020 – Derecho in Iowa becomes the most costly thunderstorm disaster in U.S. history. Births Pre-1600 941 – Lê Hoàn, Vietnamese emperor (d. 1005) 1267 – James II of Aragon (d. 1327) 1296 – John of Bohemia (d. 1346) 1360 – Francesco Zabarella, Italian cardinal (d. 1417) 1397 – Albert II of Germany (d. 1439) 1439 – Anne of York, Duchess of Exeter, Duchess of York (d. 1476) 1449 – Bona of Savoy, Duchess of Savoy (d. 1503) 1466 – Francesco II Gonzaga, Marquess of Mantua (d. 1519) 1489 – Jacob Sturm von Sturmeck, German lawyer and politician (d. 1553) 1520 – Madeleine of Valois (d. 1537) 1528 – Eric II, Duke of Brunswick-Lüneburg (d. 1584) 1547 – Francis II, Duke of Saxe-Lauenburg (d. 1619) 1560 – Hieronymus Praetorius, German organist and composer (d. 1629) 1601–1900 1602 – Gilles de Roberval, French mathematician and academic (d. 1675) 1645 – Eusebio Kino, Italian priest and missionary (d. 1711) 1734 – Naungdawgyi, Burmese king (d. 1763) 1737 – Anton Losenko, Russian painter and academic (d. 1773) 1740 – Samuel Arnold, English organist and composer (d. 1802) 1744 – Alexandrine Le Normant d'Étiolles, French daughter of Madame de Pompadour (d. 1754) 1755 – Narayan Rao, fifth Peshwa of the Maratha Empire (d. 1773) 1782 – Vicente Guerrero, Mexican insurgent leader and President of Mexico (d. 1831) 1805 – Ferenc Toldy, German-Hungarian historian and critic (d. 1875) 1809 – John Kirk Townsend, American ornithologist and explorer (d. 1851) 1810 – Camillo Benso, Count of Cavour, Italian soldier and politician, 1st Prime Minister of Italy (d. 1861) 1814 – Henri Nestlé, German businessman, founded Nestlé (d. 1890) 1814 – John C. Pemberton, United States soldier and Confederate general (d. 1881) 1821 – Jay Cooke, American financier, founded Jay Cooke & Company (d. 1905) 1823 – Hugh Stowell Brown, English minister and reformer (d. 1886) 1825 – István Türr, Hungarian soldier, architect, and engineer, co-designed the Corinth Canal (d. 1908) 1827 – Lovro Toman, Slovenian lawyer and politician (d. 1870) 1839 – Aleksandr Stoletov, Russian physicist and academic (d. 1896) 1845 – Abai Qunanbaiuli, Kazakh poet, composer, and philosopher (d. 1904) 1848 – William Harnett, Irish-American painter and educator (d. 1892) 1856 – William Willett, English inventor, founded British Summer Time (d. 1915) 1860 – Vishnu Narayan Bhatkhande, Indian singer and musicologist (d. 1936) 1865 – Alexander Glazunov, Russian composer, conductor, and educator (d. 1936) 1868 – Hugo Eckener, German pilot and businessman (d. 1954) 1869 – Laurence Binyon, English poet, playwright, and scholar (d. 1943) 1870 – Trần Tế Xương, Vietnamese poet and satirist (d. 1907) 1872 – William Manuel Johnson, American bassist (d. 1972) 1874 – Herbert Hoover, American engineer and politician, 31st President of the United States (d. 1964) 1874 – Antanas Smetona, Lithuanian jurist and politician, President of Lithuania from 1919 to 1920 and from 1926 to 1940. (d. 1944) 1877 – Frank Marshall, American chess player and author (d. 1944) 1878 – Alfred Döblin, Polish-German physician and author (d. 1957) 1880 – Robert L. Thornton, American businessman and politician, Mayor of Dallas (d. 1964) 1884 – Panait Istrati, Romanian journalist and author (d. 1935) 1888 – Prince Christopher of Greece and Denmark (d. 1940) 1889 – Charles Darrow, American game designer, created Monopoly (d. 1967) 1889 – Zofia Kossak-Szczucka, Polish writer and member of the WW II Polish Resistance (d. 1968) 1890 – Angus Lewis Macdonald, Canadian lawyer and politician, 12th Premier of Nova Scotia (d. 1954) 1894 – V. V. Giri, Indian lawyer and politician, 4th President of India (d. 1980) 1895 – Hammy Love, Australian cricketer (d. 1969) 1897 – John W. Galbreath, American businessman and philanthropist, founded Darby Dan Farm (d. 1988) 1897 – Jack Haley, American actor and singer (d. 1979) 1900 – Arthur Porritt, Baron Porritt, New Zealand physician and politician, 11th Governor-General of New Zealand (d. 1994) 1901–present 1902 – Norma Shearer, Canadian-American actress (d. 1983) 1902 – Curt Siodmak, German-English author and screenwriter (d. 2000) 1902 – Arne Tiselius, Swedish biochemist and academic, Nobel Prize laureate (d. 1971) 1903 – Ward Moore, American author (d. 1978) 1905 – Era Bell Thompson, American journalist and author (d. 1986) 1907 – Su Yu, Chinese general and politician (d. 1984) 1908 – Rica Erickson, Australian botanist, historian, and author (d. 2009) 1908 – Billy Gonsalves, American soccer player (d. 1977) 1909 – Leo Fender, American businessman, founded Fender Musical Instruments Corporation (d. 1991) 1909 – Richard J. Hughes, American politician, 45th Governor of New Jersey, and Chief Justice of the New Jersey Supreme Court (d. 1992) 1910 – Guy Mairesse, French racing driver (d. 1954) 1911 – Leonidas Andrianopoulos, Greek footballer (d. 2011) 1911 – A. N. Sherwin-White, English historian and author (d. 1993) 1912 – Jorge Amado, Brazilian novelist and poet (d. 2001) 1913 – Noah Beery Jr., American actor (d. 1994) 1913 – Kalevi Kotkas, Estonian-Finnish high jumper and discus thrower (d. 1983) 1913 – Wolfgang Paul, German physicist and academic, Nobel Prize laureate (d. 1993) 1914 – Jeff Corey, American actor and director (d. 2002) 1914 – Carlos Menditeguy, Argentinian racing driver and polo player (d. 1973) 1914 – Ray Smith, English cricketer (d. 1996) 1918 – Eugene P. Wilkinson, American admiral (d. 2013) 1920 – Red Holzman, American basketball player and coach (d. 1998) 1922 – Al Alberts, American pop singer (The Four Aces) and composer (d. 2009) 1923 – Bill Doolittle, American football player and coach (d. 2014) 1923 – Rhonda Fleming, American actress (d. 2020) 1923 – Fred Ridgway, English cricketer and footballer (d. 2015) 1923 – SM Sultan, Bangladeshi painter and illustrator (d. 1994) 1924 – Nancy Buckingham, English author 1924 – Martha Hyer, American actress (d. 2014) 1924 – Jean-François Lyotard, French philosopher, sociologist, and literary theorist (d. 1998) 1925 – George Cooper, English general (d. 2020) 1926 – Marie-Claire Alain, French organist and educator (d. 2013) 1926 – Carol Ruth Vander Velde, American mathematician (d. 1972) 1927 – Jimmy Martin, American singer and guitarist (d. 2005) 1927 – Vernon Washington, American actor (d. 1988) 1928 – Jimmy Dean, American singer, actor, and businessman, founded the Jimmy Dean Food Company (d. 2010) 1928 – Eddie Fisher, American singer and actor (d. 2010) 1928 – Gerino Gerini, Italian racing driver (d. 2013) 1928 – Gus Mercurio, American-Australian actor (d. 2010) 1930 – Barry Unsworth, English-Italian author and academic (d. 2012) 1931 – Dolores Alexander, American journalist and activist (d. 2008) 1931 – Tom Laughlin, American actor, director, producer, and screenwriter (d. 2013) 1932 – Alexander Goehr, English composer and academic 1932 – Gaudencio Rosales, Filipino cardinal 1933 – Elizabeth Butler-Sloss, Baroness Butler-Sloss, English lawyer and judge 1933 – Rocky Colavito, American baseball player and sportscaster 1933 – Keith Duckworth, English engineer, founded Cosworth (d. 2005) 1934 – Tevfik Kış, Turkish wrestler and trainer 1935 – Ian Stewart, Baron Stewartby, English politician, Minister of State for the Armed Forces (d. 2018) 1935 – Ad van Luyn, Dutch bishop 1936 – Malene Schwartz, Danish actress 1937 – Anatoly Sobchak, Russian scholar and politician, Mayor of Saint Petersburg (d. 2000) 1938 – Tony Ross, English author and illustrator 1939 – Kate O'Mara, English actress (d. 2014) 1939 – Charlie Rose, American lawyer and politician (d. 2012) 1940 – Bobby Hatfield, American singer-songwriter (d. 2003) 1940 – Sid Waddell, English sportscaster (d. 2012) 1941 – Anita Lonsbrough, English swimmer and journalist 1941 – Susan Dorothea White, Australian painter and sculptor 1942 – Speedy Duncan, American football player (d. 2021) 1942 – Betsey Johnson, American fashion designer 1942 – Michael Pepper, English physicist and engineer 1943 – Louise Forestier, Canadian singer-songwriter and actress 1943 – Jimmy Griffin, American singer-songwriter and guitarist (d. 2005) 1943 – Michael Mantler, American trumpet player and composer 1943 – Shafqat Rana, Indian-Pakistani cricketer 1943 – Ronnie Spector, American singer-songwriter (d. 2022) 1947 – Ian Anderson, Scottish-English singer-songwriter and guitarist 1947 – Anwar Ibrahim, Malaysian academic and politician, 7th Deputy Prime Minister of Malaysia 1947 – John Spencer, English rugby player and manager 1947 – Alan Ward, English cricketer 1948 – Nick Stringer, English actor 1950 – Patti Austin, American singer-songwriter 1951 – Juan Manuel Santos, Colombian businessman and politician, 59th President of Colombia 1952 – Daniel Hugh Kelly, American actor 1952 – Diane Venora, American actress 1954 – Peter Endrulat, German footballer 1954 – Rick Overton, American screenwriter, actor and comedian 1955 – Jim Mees, American set designer (d. 2013) 1955 – Mel Tiangco, Filipino journalist and talk show host 1956 – Dianne Fromholtz, Australian tennis player 1956 – José Luis Montes, Spanish footballer and manager (d. 2013) 1956 – Fred Ottman, American wrestler 1956 – Charlie Peacock, American singer-songwriter, pianist, and producer 1956 – Perween Warsi, Indian-English businesswoman 1957 – Fred Ho, American saxophonist, composer, and playwright (d. 2014) 1957 – Andres Põime, Estonian architect 1957 – Aqeel Abbas Jafari, Pakistani writer, poet, architect and chief editor Urdu Dictionary Board 1958 – Michael Dokes, American boxer (d. 2012) 1958 – Jack Richards, English cricketer, coach, and manager 1958 – Rosie Winterton, English nurse and politician, Shadow Leader of the House of Commons 1959 – Rosanna Arquette, American actress, director, and producer 1959 – Albert Owen, Welsh sailor and politician 1959 – Mark Price, English drummer 1959 – Florent Vollant, Canadian singer-songwriter 1960 – Antonio Banderas, Spanish actor and producer 1960 – Annely Ojastu, Estonian sprinter and long jumper 1960 – Kenny Perry, American golfer 1961 – Jon Farriss, Australian drummer, songwriter, and producer 1962 – Suzanne Collins, American author and screenwriter 1962 – Julia Fordham, English singer-songwriter 1963 – Phoolan Devi,

format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression. The data can be a raw bitstream in an audio coding format, but it is usually embedded in a container format or an audio data format with defined storage layer. Format types It is important to distinguish between the audio coding format, the container containing the raw audio data, and an audio codec. A codec performs the encoding and decoding of the raw audio data while this encoded data is (usually) stored in a container file. Although most audio file formats support only one type of audio coding data (created with an audio coder), a multimedia container format (as Matroska or AVI) may support multiple types of audio and video data. There are three major groups of audio file formats: Uncompressed audio formats, such as WAV, AIFF, AU or raw header-less PCM; Formats with lossless compression, such as FLAC, Monkey's Audio (filename extension .ape), WavPack (filename extension .wv), TTA, ATRAC Advanced Lossless, ALAC (filename extension .m4a), MPEG-4 SLS, MPEG-4 ALS, MPEG-4 DST, Windows Media Audio Lossless (WMA Lossless), and Shorten (SHN). Formats with lossy compression, such as Opus, MP3, Vorbis, Musepack, AAC, ATRAC and Windows Media Audio Lossy (WMA lossy). Uncompressed audio format One major uncompressed audio format, LPCM, is the same variety of PCM as used in Compact Disc Digital Audio and is the format most commonly accepted by low level audio APIs and D/A converter hardware. Although LPCM can be stored on a computer as a raw audio format, it is usually stored in a .wav file on Windows or in a .aiff file on macOS. The Audio Interchange File Format (AIFF) format is based on the Interchange File Format (IFF), and the WAV format is based on the similar Resource Interchange File Format (RIFF). WAV and AIFF are designed to store a wide variety of audio formats, lossless and lossy; they just add a small, metadata-containing header before the audio data to declare the format of the audio data, such as LPCM with a particular sample rate, bit depth, endianness and number of channels. Since WAV and AIFF are widely supported and can store LPCM, they are suitable file formats for storing and archiving an original recording. BWF (Broadcast

Compact Disc Digital Audio and is the format most commonly accepted by low level audio APIs and D/A converter hardware. Although LPCM can be stored on a computer as a raw audio format, it is usually stored in a .wav file on Windows or in a .aiff file on macOS. The Audio Interchange File Format (AIFF) format is based on the Interchange File Format (IFF), and the WAV format is based on the similar Resource Interchange File Format (RIFF). WAV and AIFF are designed to store a wide variety of audio formats, lossless and lossy; they just add a small, metadata-containing header before the audio data to declare the format of the audio data, such as LPCM with a particular sample rate, bit depth, endianness and number of channels. Since WAV and AIFF are widely supported and can store LPCM, they are suitable file formats for storing and archiving an original recording. BWF (Broadcast Wave Format) is a standard audio format created by the European Broadcasting Union as a successor to WAV. Among other enhancements, BWF allows more robust metadata to be stored in the file. See European Broadcasting Union: Specification of the Broadcast Wave Format (EBU Technical document 3285, July 1997). This is the primary recording format used in many professional audio workstations in the television and film industry. BWF files include a standardized timestamp reference which allows for easy synchronization with a separate picture element. Stand-alone, file based, multi-track recorders from AETA, Sound Devices, Zaxcom, HHB Communications Ltd, Fostex, Nagra, Aaton, and TASCAM all use BWF as their preferred format. Lossless compressed audio format A lossless compressed audio format stores data in less space without losing any information. The original, uncompressed data can be recreated from the compressed version. Uncompressed audio formats encode both sound and silence with the same number of bits per unit of time. Encoding an uncompressed minute of absolute silence produces a file of the same size as encoding an uncompressed minute of music. In a lossless compressed format, however, the music would occupy a smaller file than an uncompressed format and the silence would take up almost no space at all. Lossless compression formats include the common FLAC, WavPack, Monkey's Audio, ALAC (Apple Lossless). They provide a compression ratio of about 2:1 (i.e. their files take up half

regnal name Victor IV: Antipope

used the regnal name Victor

A-12 20 to 30 times. Groom was also the site of the first Lockheed D-21 drone test flight on 22 December 1964. By the end of 1963, nine A-12s were at Area 51, assigned to the CIA-operated "1129th Special Activities Squadron". D-21 Tagboard Following the loss of Gary Powers' U-2 over the Soviet Union, there were several discussions about using the A-12 OXCART as an unpiloted drone aircraft. Although Kelly Johnson had come to support the idea of drone reconnaissance, he opposed the development of an A-12 drone, contending that the aircraft was too large and complex for such a conversion. However, the Air Force agreed to fund the study of a high-speed, high-altitude drone aircraft in October 1962. The Air Force interest seems to have moved the CIA to take action, the project designated "Q-12". By October 1963, the drone's design had been finalized. At the same time, the Q-12 underwent a name change. To separate it from the other A-12-based projects, it was renamed the "D-21". (The "12" was reversed to "21"). "Tagboard" was the project's code name. The first D-21 was completed in the spring of 1964 by Lockheed. After four more months of checkouts and static tests, the aircraft was shipped to Groom Lake and reassembled. It was to be carried by a two-seat derivative of the A-12, designated the "M-21". When the D-21/M-21 reached the launch point, the first step would be to blow off the D-21's inlet and exhaust covers. With the D-21/M-21 at the correct speed and altitude, the LCO would start the ramjet and the other systems of the D-21. "With the D-21's systems activated and running, and the launch aircraft at the correct point, the M-21 would begin a slight pushover, the LCO would push a final button, and the D-21 would come off the pylon". Difficulties were addressed throughout 1964 and 1965 at Groom Lake with various technical issues. Captive flights showed unforeseen aerodynamic difficulties. By late January 1966, more than a year after the first captive flight, everything seemed ready. The first D-21 launch was made on 5March 1966 with a successful flight, with the D-21 flying 120 miles with limited fuel. A second D-21 flight was successful in April 1966 with the drone flying 1,200 miles, reaching Mach 3.3 and 90,000 feet. An accident on 30 July 1966 with a fully fueled D-21, on a planned checkout flight, suffered from an unstart of the drone after its separation, causing it to collide with the M-21 launch aircraft. The two crewmen ejected and landed in the ocean 150 miles offshore. One crew member was picked up by a helicopter, but the other, having survived the aircraft breakup and ejection, drowned when sea water entered his pressure suit. Kelly Johnson personally cancelled the entire program, having had serious doubts about its feasibility from the start. A number of D-21s had already been produced, and rather than scrapping the whole effort, Johnson again proposed to the Air Force that they be launched from a B-52H bomber. By late summer of 1967, the modification work to both the D-21 (now designated D-21B) and the B-52Hs was complete. The test program could now resume. The test missions were flown out of Groom Lake, with the actual launches over the Pacific. The first D-21B to be flown was Article 501, the prototype. The first attempt was made on 28 September 1967 and ended in complete failure. As the B-52 was flying toward the launch point, the D-21B fell off the pylon. The B-52H gave a sharp lurch as the drone fell free. The booster fired and was "quite a sight from the ground". The failure was traced to a stripped nut on the forward right attachment point on the pylon. Several more tests were made, none of which met with success. However, the fact is that the resumptions of D-21 tests took place against a changing reconnaissance background. The A-12 had finally been allowed to deploy, and the SR-71 was soon to replace it. At the same time, new developments in reconnaissance satellite technology were nearing operation. Up to this point, the limited number of satellites available restricted coverage to the Soviet Union. A new generation of reconnaissance satellites could soon cover targets anywhere in the world. The satellites' resolution would be comparable to that of aircraft but without the slightest political risk. Time was running out for the Tagboard. Several more test flights, including two over China, were made from Beale AFB, California, in 1969 and 1970, to varying degrees of success. On 15 July 1971, Kelly Johnson received a wire canceling the D-21B program. The remaining drones were transferred by a C-5A and placed in dead storage. The tooling used to build the D-21Bs was ordered destroyed. Like the A-12 Oxcart, the D-21B Tagboard drones remained a Black airplane, even in retirement. Their existence was not suspected until August 1976, when the first group was placed in storage at the Davis-Monthan AFB Military Storage and Disposition Center. A second group arrived in 1977. They were labeled "GTD-21Bs" (GT stood for ground training). Davis-Monthan is an open base, with public tours of the storage area at the time, so the odd-looking drones were soon spotted and photos began appearing in magazines. Speculation about the D-21Bs circulated within aviation circles for years, and it was not until 1982 that details of the Tagboard program were released. However, it was not until 1993 that the B-52/D-21B program was made public. That same year, the surviving D-21Bs were released to museums. Foreign technology evaluation During the Cold War, one of the missions carried out by the United States was the test and evaluation of captured Soviet fighter aircraft. Beginning in the late 1960s, and for several decades, Area 51 played host to an assortment of Soviet-built aircraft. Under the HAVE DOUGHNUT, HAVE DRILL and HAVE FERRY programs, the first MiGs flown in the United States were used to evaluate the aircraft in performance, technical, and operational capabilities, pitting the types against U.S. fighters. This was not a new mission, as testing of foreign technology by the USAF began during World War II. After the war, testing of acquired foreign technology was performed by the Air Technical Intelligence Center (ATIC, which became very influential during the Korean War), under the direct command of the Air Materiel Control Department. In 1961, ATIC became the Foreign Technology Division (FTD) and was reassigned to Air Force Systems Command. ATIC personnel were sent anywhere where foreign aircraft could be found. The focus of Air Force Systems Command limited the use of the fighter as a tool with which to train the front line tactical fighter pilots. Air Force Systems Command recruited its pilots from the Air Force Flight Test Center at Edwards Air Force Base, California, who were usually graduates from various test pilot schools. Tactical Air Command selected its pilots primarily from the ranks of the Weapons School graduates. In August 1966, Iraqi Air Force fighter pilot Captain Munir Redfa defected, flying his MiG-21 to Israel after being ordered to attack Iraqi Kurd villages with napalm. His aircraft was transferred to Groom Lake in late 1967 for study. In 1968, the US Air Force and Navy jointly formed a project known as HAVE DOUGHNUT in which Air Force Systems Command, Tactical Air Command, and the U.S. Navy's Air Test and Evaluation Squadron Four (VX-4) flew this acquired Soviet made aircraft in simulated air combat training. As U.S. possession of the Soviet MiG-21 was, itself, secret, it was tested at Groom Lake. A joint Air Force-Navy team was assembled for a series of dogfight tests. Comparisons between the F-4 and the MiG-21 indicated that, on the surface, they were evenly matched. The HAVE DOUGHNUT tests showed the skill of the man in the cockpit was what made the difference. When the Navy or Air Force pilots flew the MiG-21, the results were a draw; the F-4 would win some fights, the MiG-21 would win others. There were no clear advantages. The problem was not with the planes, but with the pilots flying them. The pilots would not fly either plane to its limits. One of the Navy pilots was Marland W. "Doc" Townsend, then commander of VF-121, the F-4 training squadron at NAS Miramar. He was an engineer and a Korean War veteran and had flown almost every navy aircraft. When he flew against the MiG-21, he would outmaneuver it every time. The Air Force pilots would not go vertical in the MiG-21. The HAVE DOUGHNUT project officer was Tom Cassidy, a pilot with VX-4, the Navy's Air Development Squadron at Point Mugu. He had been watching as Townsend "waxed" the Air Force MiG-21 pilots. Cassidy climbed into the MiG-21 and went up against Townsend's F-4. This time the result was far different. Cassidy was willing to fight in the vertical, flying the plane to the point where it was buffeting, just above the stall. Cassidy was able to get on the F-4's tail. After the flight, they realized the MiG-21 turned better than the F-4 at lower speeds. The key was for the F-4 to keep its speed up. An F-4 had defeated the MiG-21; the weakness of the Soviet plane had been found. Further test flights confirmed what was learned. It was also clear that the MiG-21 was a formidable enemy. United States pilots would have to fly much better than they had been to beat it. This would require a special school to teach advanced air combat techniques. On 12 August 1968, two Syrian air force lieutenants, Walid Adham and Radfan Rifai, took off in a pair of MiG-17Fs on a training mission. They lost their way and, believing they were over Lebanon, landed at the Betzet Landing Field in northern Israel. (One version has it that they were led astray by an Arabic-speaking Israeli). Prior to the end of 1968 these MiG-17s were transferred from Israeli stocks and added to the Area 51 test fleet. The aircraft were given USAF designations and fake serial numbers so that they could be identified in DOD standard flight logs. As in the earlier program, a small group of Air Force and Navy pilots conducted mock dogfights with the MiG-17s. Selected instructors from the Navy's Top Gun school at NAS Miramar, California, were chosen to fly against the MiGs for familiarization purposes. Very soon, the MiG-17's shortcomings

Air Force Systems Command. ATIC personnel were sent anywhere where foreign aircraft could be found. The focus of Air Force Systems Command limited the use of the fighter as a tool with which to train the front line tactical fighter pilots. Air Force Systems Command recruited its pilots from the Air Force Flight Test Center at Edwards Air Force Base, California, who were usually graduates from various test pilot schools. Tactical Air Command selected its pilots primarily from the ranks of the Weapons School graduates. In August 1966, Iraqi Air Force fighter pilot Captain Munir Redfa defected, flying his MiG-21 to Israel after being ordered to attack Iraqi Kurd villages with napalm. His aircraft was transferred to Groom Lake in late 1967 for study. In 1968, the US Air Force and Navy jointly formed a project known as HAVE DOUGHNUT in which Air Force Systems Command, Tactical Air Command, and the U.S. Navy's Air Test and Evaluation Squadron Four (VX-4) flew this acquired Soviet made aircraft in simulated air combat training. As U.S. possession of the Soviet MiG-21 was, itself, secret, it was tested at Groom Lake. A joint Air Force-Navy team was assembled for a series of dogfight tests. Comparisons between the F-4 and the MiG-21 indicated that, on the surface, they were evenly matched. The HAVE DOUGHNUT tests showed the skill of the man in the cockpit was what made the difference. When the Navy or Air Force pilots flew the MiG-21, the results were a draw; the F-4 would win some fights, the MiG-21 would win others. There were no clear advantages. The problem was not with the planes, but with the pilots flying them. The pilots would not fly either plane to its limits. One of the Navy pilots was Marland W. "Doc" Townsend, then commander of VF-121, the F-4 training squadron at NAS Miramar. He was an engineer and a Korean War veteran and had flown almost every navy aircraft. When he flew against the MiG-21, he would outmaneuver it every time. The Air Force pilots would not go vertical in the MiG-21. The HAVE DOUGHNUT project officer was Tom Cassidy, a pilot with VX-4, the Navy's Air Development Squadron at Point Mugu. He had been watching as Townsend "waxed" the Air Force MiG-21 pilots. Cassidy climbed into the MiG-21 and went up against Townsend's F-4. This time the result was far different. Cassidy was willing to fight in the vertical, flying the plane to the point where it was buffeting, just above the stall. Cassidy was able to get on the F-4's tail. After the flight, they realized the MiG-21 turned better than the F-4 at lower speeds. The key was for the F-4 to keep its speed up. An F-4 had defeated the MiG-21; the weakness of the Soviet plane had been found. Further test flights confirmed what was learned. It was also clear that the MiG-21 was a formidable enemy. United States pilots would have to fly much better than they had been to beat it. This would require a special school to teach advanced air combat techniques. On 12 August 1968, two Syrian air force lieutenants, Walid Adham and Radfan Rifai, took off in a pair of MiG-17Fs on a training mission. They lost their way and, believing they were over Lebanon, landed at the Betzet Landing Field in northern Israel. (One version has it that they were led astray by an Arabic-speaking Israeli). Prior to the end of 1968 these MiG-17s were transferred from Israeli stocks and added to the Area 51 test fleet. The aircraft were given USAF designations and fake serial numbers so that they could be identified in DOD standard flight logs. As in the earlier program, a small group of Air Force and Navy pilots conducted mock dogfights with the MiG-17s. Selected instructors from the Navy's Top Gun school at NAS Miramar, California, were chosen to fly against the MiGs for familiarization purposes. Very soon, the MiG-17's shortcomings became clear. It had an extremely simple, even crude, control system that lacked the power-boosted controls of American aircraft. The F-4's twin engines were so powerful it could accelerate out of range of the MiG-17's guns in thirty seconds. It was important for the F-4 to keep its distance from the MiG-17. As long as the F-4 was one and a half miles from the MiG-17, it was outside the reach of the Soviet fighter's guns, but the MiG was within reach of the F-4's missiles. The data from the HAVE DOUGHNUT and HAVE DRILL tests were provided to the newly formed Top Gun school at NAS Miramar. By 1970, the HAVE DRILL program was expanded; a few selected fleet F-4 crews were given the chance to fight the MiGs. The most important result of Project HAVE DRILL is that no Navy pilot who flew in the project defeated the MiG-17 Fresco in the first engagement. The HAVE DRILL dogfights were by invitation only. The other pilots based at Nellis Air Force Base were not to know about the U.S.-operated MiGs. To prevent any sightings, the airspace above the Groom Lake range was closed. On aeronautical maps, the exercise area was marked in red ink. The forbidden zone became known as "Red Square". During the remainder of the Vietnam War, the Navy kill ratio climbed to 8.33 to 1. In contrast, the Air Force rate improved only slightly to 2.83 to 1. The reason for this difference was Top Gun. The Navy had revitalized its air combat training, while the Air Force had stayed stagnant. Most of the Navy MiG kills were by Top Gun graduates In May 1973, Project HAVE IDEA was formed which took over from the older HAVE DOUGHNUT, HAVE FERRY and HAVE DRILL projects and the project was transferred to the Tonopah Test Range Airport. At Tonopah, testing of foreign technology aircraft continued and expanded throughout the 1970s and 1980s. Area 51 also hosted another foreign materiel evaluation program called HAVE GLIB. This involved testing Soviet tracking and missile control radar systems. A complex of actual and replica Soviet-type threat systems began to grow around "Slater Lake", a mile northwest of the main base, along with an acquired Soviet "Barlock" search radar placed at Tonopah Air Force Station. They were arranged to simulate a Soviet-style air defense complex. The Air Force began funding improvements to Area 51 in 1977 under project SCORE EVENT. In 1979, the CIA transferred jurisdiction of the Area 51 site to the Air Force Flight Test Center at Edwards AFB, California. Mr. Sam Mitchell, the last CIA commander of Area 51, relinquished command to USAF Lt. Col. Larry D. McClain. Have Blue/F-117 program The Lockheed Have Blue prototype stealth fighter (a smaller proof-of-concept model of the F-117 Nighthawk) first flew at Groom in December 1977. In 1978, the Air Force awarded a full-scale development contract for the F-117 to Lockheed Corporation's Advanced Development Projects. On 17 January 1981 the Lockheed test team at Area 51 accepted delivery of the first full-scale development (FSD) prototype 79–780, designated YF-117A. At 6:05 am on 18 June 1981 Lockheed Skunk Works test pilot Hal Farley lifted the nose of YF-117A 79–780 off the runway of Area 51. Meanwhile, Tactical Air Command (TAC) decided to set up a group-level organization to guide the F-117A to an initial operating capability. That organization became the 4450th Tactical Group (Initially designated "A Unit"), which officially activated on 15 October 1979 at Nellis AFB, Nevada, although the group was physically located at Area 51. The 4450th TG also operated the A-7D Corsair II as a surrogate trainer for the F-117A, and these operations continued until 15 October 1982 under the guise of an avionics test mission. Flying squadrons of the 4450th TG were the 4450th Tactical Squadron (Initially designated "I Unit") activated on 11 June 1981, and 4451st Tactical Squadron (Initially designated "P Unit") on 15 January 1983. The 4450th TS, stationed at Area 51, was the first F-117A squadron, while the 4451st TS was stationed at Nellis AFB and was equipped with A-7D Corsair IIs painted in a dark motif, tail coded "LV". Lockheed test pilots put the YF-117 through its early paces. A-7Ds were used for pilot training before any F-117As had been delivered by Lockheed to Area 51, later the A-7D's were used for F-117A chase testing and other weapon tests at the Nellis Range. On 15 October 1982, Major Alton C. Whitley Jr. became the first USAF 4450th TG pilot to fly the F-117A. Although ideal for testing, Area 51 was not a suitable location for an operational group, so a new covert base had to be established for F-117 operations. Tonopah Test Range Airport was selected for operations of the first USAF F-117 unit, the 4450th Tactical Group (TG). From October 1979, the Tonopah Airport base was reconstructed and expanded. The 6,000-foot runway was lengthened to 10,000 feet. Taxiways, a concrete apron, a large maintenance hangar, and a propane storage tank were added. By early 1982, four more YF-117As were operating at the base. After finding a large scorpion in their offices, the testing team (Designated "R Unit") adopted it as their mascot and dubbed themselves the "Baja Scorpions". Testing of a series of ultra-secret prototypes continued at Area 51 until mid-1981 when testing transitioned to the initial production of F-117 stealth fighters. The F-117s were moved to and from Area 51 by C-5 during darkness to maintain security. The aircraft were defueled, disassembled, cradled, and then loaded aboard the C-5 at night, flown to Lockheed, and unloaded at night before reassembly and flight testing. Groom performed radar profiling, F-117 weapons testing, and training of the first group of frontline USAF F-117 pilots. While the "Baja Scorpions" were working on the F-117, there was also another group at work in secrecy, known as "the Whalers" working on Tacit Blue. A fly-by-wire technology demonstration aircraft with curved surfaces and composite material, to evade radar, was a prototype, and never went into production. Nevertheless, this strange-looking aircraft was responsible for many of the stealth technology advances that were used on several other aircraft designs, and had a direct influence on the B-2; with the first flight of Tacit Blue being performed on 5February 1982, by Northrop Grumman test pilot, Richard G. Thomas. Production FSD airframes from Lockheed were shipped to Area 51 for acceptance testing. As the Baja Scorpions tested the aircraft

its digital representation. History The motivation for audio signal processing began at the beginning of the 20th century with inventions like the telephone, phonograph, and radio that allowed for the transmission and storage of audio signals. Audio processing was necessary for early radio broadcasting, as there were many problems with studio-to-transmitter links. The theory of signal processing and its application to audio was largely developed at Bell Labs in the mid 20th century. Claude Shannon and Harry Nyquist's early work on communication theory, sampling theory and pulse-code modulation (PCM) laid the foundations for the field. In 1957, Max Mathews became the first person to synthesize audio from a computer, giving birth to computer music. Major developments in digital audio coding and audio data compression include differential pulse-code modulation (DPCM) by C. Chapin Cutler at Bell Labs in 1950, linear predictive coding (LPC) by Fumitada Itakura (Nagoya University) and Shuzo Saito (Nippon Telegraph and Telephone) in 1966, adaptive DPCM (ADPCM) by P. Cummiskey, Nikil S. Jayant and James L. Flanagan at Bell Labs in 1973, discrete cosine transform (DCT) coding by Nasir Ahmed, T. Natarajan and K. R. Rao in 1974, and modified discrete cosine transform (MDCT) coding by J. P. Princen, A. W. Johnson and A. B. Bradley at the University of Surrey in 1987. LPC is the basis for perceptual coding and is widely used in speech coding, while MDCT coding is widely used in modern audio coding formats such as MP3 and Advanced Audio Coding (AAC). Analog signals An analog audio signal is a continuous signal represented by an electrical voltage or current that is analogous to the sound waves in the air. Analog signal processing then involves physically altering the continuous signal by changing the voltage or current or charge via electrical circuits. Historically, before the advent of widespread digital technology, analog was the only method by which to manipulate a signal. Since that time, as computers and software have become more capable and

theory of signal processing and its application to audio was largely developed at Bell Labs in the mid 20th century. Claude Shannon and Harry Nyquist's early work on communication theory, sampling theory and pulse-code modulation (PCM) laid the foundations for the field. In 1957, Max Mathews became the first person to synthesize audio from a computer, giving birth to computer music. Major developments in digital audio coding and audio data compression include differential pulse-code modulation (DPCM) by C. Chapin Cutler at Bell Labs in 1950, linear predictive coding (LPC) by Fumitada Itakura (Nagoya University) and Shuzo Saito (Nippon Telegraph and Telephone) in 1966, adaptive DPCM (ADPCM) by P. Cummiskey, Nikil S. Jayant and James L. Flanagan at Bell Labs in 1973, discrete cosine transform (DCT) coding by Nasir Ahmed, T. Natarajan and K. R. Rao in 1974, and modified discrete cosine transform (MDCT) coding by J. P. Princen, A. W. Johnson and A. B. Bradley at the University of Surrey in 1987. LPC is the basis for perceptual coding and is widely used in speech coding, while MDCT coding is widely used in modern audio coding formats such as MP3 and Advanced Audio Coding (AAC). Analog signals An analog audio signal is a continuous signal represented by an electrical voltage or current that is analogous to the sound waves in the air. Analog signal processing then involves physically altering the continuous signal by changing the voltage or current or charge via electrical circuits.

the speedup of the part of the task that benefits from improved system resources; p is the proportion of execution time that the part benefiting from improved resources originally occupied. Furthermore, shows that the theoretical speedup of the execution of the whole task increases with the improvement of the resources of the system and that regardless of the magnitude of the improvement, the theoretical speedup is always limited by the part of the task that cannot benefit from the improvement. Amdahl's law applies only to the cases where the problem size is fixed. In practice, as more computing resources become available, they tend to get used on larger problems (larger datasets), and the time spent in the parallelizable part often grows much faster than the inherently serial work. In this case, Gustafson's law gives a less pessimistic and more realistic assessment of the parallel performance. Derivation A task executed by a system whose resources are improved compared to an initial similar system can be split up into two parts: a part that does not benefit from the improvement of the resources of the system; a part that benefits from the improvement of the resources of the system. An example is a computer program that processes files . A part of that program may scan the directory of the disk and create a list of files internally in memory. After that, another part of the program passes each file to a separate thread for processing. The part that scans the directory and creates the file list cannot be sped up on a parallel computer, but the part that processes the files can. The execution time of the whole task before the improvement of the resources of the system is denoted as . It includes the execution time of the part that would not benefit from the improvement of the resources and the execution time of the one that would benefit from it. The fraction of the execution time of the task that would benefit from the improvement of the resources is denoted by . The one concerning the part that would not benefit from it is therefore . Then: It is the execution of the part that benefits from the improvement of the resources that is accelerated by the factor after the improvement of the resources. Consequently, the execution time of the part that does not benefit from it remains the same, while the part that benefits from it becomes: The theoretical execution time of the whole task after the improvement of the resources is then: Amdahl's law gives the theoretical speedup in latency of the execution of the whole task at fixed workload , which yields Parallel programs If 30% of the execution time may be the subject of a speedup, p will be 0.3; if the improvement makes the affected part twice as fast, s will be 2. Amdahl's law states that the overall speedup of applying the improvement will be: For example, assume that we are given a serial task which is split into four consecutive parts, whose percentages of execution time are , , , and respectively. Then we are told that the 1st part is not sped up, so , while the 2nd part is sped up 5 times, so , the 3rd part is sped up 20 times, so , and the 4th part is sped up 1.6 times, so . By using Amdahl's law, the overall speedup is Notice how the 5 times and 20 times speedup on the 2nd and 3rd parts respectively don't have much effect on the overall speedup when the 4th part (48% of the execution time) is accelerated by only 1.6 times. Serial programs [[File:Optimizing-different-parts.svg|thumb|400px|Assume that a task has two independent parts, A and B. Part B takes roughly 25% of the time of the whole computation. By working very hard, one may be able to make this part 5 times faster, but this reduces the time of the whole computation only slightly. In contrast, one may need to perform less work to make part A perform twice as fast. This will make the computation much faster than by optimizing part B, even though part B'''s speedup is greater in terms of the ratio, (5 times versus 2 times).]] For example, with a serial program in two parts A and B for which and , if part B is made to run 5 times faster, that is and , then if part A is made to run 2 times faster, that is and , then

the system and that regardless of the magnitude of the improvement, the theoretical speedup is always limited by the part of the task that cannot benefit from the improvement. Amdahl's law applies only to the cases where the problem size is fixed. In practice, as more computing resources become available, they tend to get used on larger problems (larger datasets), and the time spent in the parallelizable part often grows much faster than the inherently serial work. In this case, Gustafson's law gives a less pessimistic and more realistic assessment of the parallel performance. Derivation A task executed by a system whose resources are improved compared to an initial similar system can be split up into two parts: a part that does not benefit from the improvement of the resources of the system; a part that benefits from the improvement of the resources of the system. An example is a computer program that processes files . A part of that program may scan the directory of the disk and create a list of files internally in memory. After that, another part of the program passes each file to a separate thread for processing. The part that scans the directory and creates the file list cannot be sped up on a parallel computer, but the part that processes the files can. The execution time of the whole task before the improvement of the resources of the system is denoted as . It includes the execution time of the part that would not benefit from the improvement of the resources and the execution time of the one that would benefit from it. The fraction of the execution time of the task that would benefit from the improvement of the resources is denoted by . The one concerning the part that would not benefit from it is therefore . Then: It is the execution of the part that benefits from the improvement of the resources that is accelerated by the factor after the improvement of the resources. Consequently, the execution time of the part that does not benefit from it remains the same, while the part that benefits from it becomes: The theoretical execution time of the whole task after the improvement of the resources is then: Amdahl's law gives the theoretical speedup in latency of the execution of the whole task at fixed workload , which yields Parallel programs If 30% of the execution time may be the subject of a speedup, p will be 0.3; if the improvement makes the affected part twice as fast, s will be 2. Amdahl's law states that the overall speedup of applying the improvement will be: For example, assume that we are given a serial task which is split into four consecutive parts, whose percentages of execution time are , , , and respectively. Then we are told that the 1st part is not sped up, so , while the 2nd part is sped up 5 times, so , the 3rd part is sped up 20 times, so , and the 4th part is sped up 1.6 times, so . By using Amdahl's law, the overall speedup is Notice how the 5 times and 20 times speedup on the 2nd and 3rd parts respectively don't have much effect on the overall speedup when the 4th part (48% of the execution time) is accelerated by only 1.6 times. Serial programs [[File:Optimizing-different-parts.svg|thumb|400px|Assume that a task has two independent parts, A and B. Part B takes roughly 25% of the time of the whole computation. By working very hard, one may be able to make this part 5 times faster, but this reduces the time of the whole computation only slightly. In contrast, one may need to perform less work to make part A perform twice as fast. This will make the computation much faster than by optimizing part B, even though part B'''s speedup is greater in terms of the ratio, (5 times versus 2 times).]] For example, with a serial program in two parts A and B for which and , if part B is made to run 5 times faster, that is and , then if part A is made to run 2 times faster, that is and , then Therefore, making

the c-direction. Fe(III) and Sb(V) cations are distributed in a disordered way over the octahedral sites. References Bibliography Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 1024. Tetragonal minerals Iron(III) minerals Antimony

antimonate mineral with composition FeSbO4. Nomenclature The name of the mineral comes from the locality of Tripuhy, Ouro Preto, Minas Gerais, Brazil, where it was discovered. Hussak and Prior first described the mineral tripuhyite as an oxide of iron and antimony, and assigned it the composition Fe2Sb2O7. When a mineral with composition FeSbO4 was later discovered in Squaw Creek, New Mexico (US), it was considered erroneously as a new mineral and it was given

(d. 2014) 1927 – Coretta Scott King, African-American activist and author (d. 2006) 1927 – Joe Moakley, American soldier, lawyer, and politician (d. 2001) 1929 – Nina Ponomaryova, Russian discus thrower and coach (d. 2016) 1931 – Igor Oistrakh, Ukrainian violinist and educator (d. 2021) 1932 – Anouk Aimée, French actress 1932 – Pik Botha, South African lawyer, politician, and diplomat, 8th South African Ambassador to the United States (d. 2018) 1932 – Casey Kasem, American disc jockey, music historian, radio celebrity, and voice actor; co-created American Top 40 (d. 2014) 1932 – Chuck Knox, American football coach (d. 2018) 1932 – Derek Minter, English motorcycle racer (d. 2015) 1932 – Gian-Carlo Rota, Italian-American mathematician and philosopher (d. 1999) 1933 – Peter Imbert, Baron Imbert, English police officer and politician, Lord Lieutenant for Greater London (d. 2017) 1935 – Theodoros Angelopoulos, Greek director, producer, and screenwriter (d. 2012) 1935 – Ron Morris, American pole vaulter and coach 1936 – Geoffrey Shovelton, English singer and illustrator (d. 2016) 1937 – Sandy Dennis, American actress (d. 1992) 1937 – Robin Eames, Irish Anglican archbishop 1937 – Richard Perham, English biologist and academic (d. 2015) 1938 – Earl Anthony, American bowler and sportscaster (d. 2001) 1938 – Alain Caron, Canadian ice hockey player (d. 1986) 1939 – Judy Carne, English actress and comedian (d. 2015) 1939 – Stanisław Dziwisz, Polish cardinal 1941 – Fethullah Gülen, Turkish preacher and theologian 1941 – Dilip Kumar Chakrabarti, Indian archaeologist 1941 – Lee Roy Jordan, American football player 1942 – Ruth Glick, American author 1942 – Jim Keltner, American drummer 1943 – Helmut Marko, Austrian race car driver and manager 1944 – Michael Fish, English meteorologist and journalist 1944 – Cuba Gooding Sr., American singer (d. 2017) 1944 – Herb Pedersen, American singer-songwriter and guitarist 1945 – Martin Chivers, English footballer and manager 1945 – Jack Deverell, English general 1945 – Helen Hodgman, Scottish-Australian author 1945 – Terry Willesee, Australian journalist and television host 1945 – August Wilson, American author and playwright (d. 2005) 1946 – Franz Roth, German footballer 1947 – G. K. Butterfield, African-American soldier, lawyer, and politician 1947 – Nick Greiner, Hungarian-Australian politician, 37th Premier of New South Wales 1947 – Pete Ham, Welsh singer-songwriter and guitarist (d. 1975) 1947 – Keith Magnuson, Canadian ice hockey player and coach (d. 2003) 1947 – Ann Peebles, American soul singer-songwriter 1948 – Frank Abagnale Jr., American security consultant and criminal 1948 – Josef Hickersberger, Austrian footballer, coach, and manager 1948 – Kate Pierson, American singer-songwriter and bass player 1949 – Grant Chapman, Australian businessman and politician 1950 – Jaime Fresnedi, Filipino politician 1950 – Paul Lockyer, Australian journalist (d. 2011) 1951 – Ace Frehley, American guitarist and songwriter 1952 – Larry Elder, American lawyer and talk show host 1952 – George Gervin, American basketball player 1952 – Ari Vatanen, Finnish race car driver and politician 1953 – Arielle Dombasle, French-American actress and model 1954 – Frank Bainimarama, Fijian commander and politician, 8th Prime Minister of Fiji 1954 – Herman Edwards, American football player, coach, and sportscaster 1954 – Mark Holden, Australian singer, actor, and lawyer 1955 – Gudrun Berend, German hurdler (d. 2011) 1955 – Eric Schmidt, American engineer and businessman 1956 – Bryan Harvey, American singer-songwriter and guitarist (d. 2006) 1956 – Jeff Probyn, English rugby player, coach, and manager 1957 – Willie Upshaw, American baseball player and manager 1959 – Sheena Easton, Scottish-American singer-songwriter, actress, and producer 1959 – Marco Pirroni, English singer-songwriter, guitarist, and producer 1960 – Mike Krushelnyski, Canadian ice hockey player and coach 1961 – Andrew Schlafly, American lawyer and activist, founded Conservapedia 1962 – Ángel Comizzo, Argentinian footballer and manager 1962 – Seppo Räty, Finnish javelin thrower and coach 1962 – Im Sang-soo, South Korean director and screenwriter 1962 – Andrew Selous, English soldier and politician 1963 – Russell T Davies, Welsh screenwriter and producer 1965 – Anna Chancellor, English actress 1966 – Peter McIntyre, Australian cricketer 1966 – Yoshihiro Togashi, Japanese illustrator 1967 – Willem-Alexander, King of the Netherlands 1967 – Tommy Smith, Scottish saxophonist, composer, and educator 1967 – Erik Thomson, Scottish-New Zealand actor 1967 – Jason Whitlock, American football player and journalist 1968 – Dana Milbank, American journalist and author 1969 – Cory Booker, African-American lawyer and politician 1969 – Darcey Bussell, English ballerina 1971 – Olari Elts, Estonian conductor 1972 – Nigel Barker, English photographer and author 1972 – Almedin Civa, Bosnian footballer and coach 1973 – Duško Adamović, Serbian footballer 1973 – Sharlee D'Angelo, Swedish bass player and songwriter 1973 – Sébastien Lareau, Canadian tennis player 1974 – Frank Catalanotto, American baseball player 1974 – Richard Johnson, Australian footballer 1975 – Rabih Abdullah, American football player 1975 – Chris Carpenter, American baseball player and manager 1975 – Pedro Feliz, Dominican baseball player 1975 – Kazuyoshi Funaki, Japanese ski jumper 1976 – Isobel Campbell, Scottish singer-songwriter and cellist 1976 – Sally Hawkins, English actress 1976 – Walter Pandiani, Uruguayan footballer 1976 – Faisal Saif, Indian director, screenwriter, and critic 1979 – Will Boyd, American bass player 1979 – Natasha Chokljat, Australian netball player 1979 – Vladimir Kozlov, Ukrainian wrestler 1980 – Sybille Bammer, Austrian tennis player 1980 – Talitha Cummins, Australian journalist 1980 – Christian Lara, Ecuadorian footballer 1981 – Joey Gathright, American baseball player 1981 – Patrik Gerrbrand, Swedish footballer 1982 – François Parisien, Canadian cyclist 1982 – Alexander Widiker, German rugby player 1983 – Ari Graynor, American actress and producer 1983 – Martin Viiask, Estonian basketball player 1984 – Pierre-Marc Bouchard, Canadian ice hockey player 1984 – Daniel Holdsworth, Australian rugby league player 1985 – José António de Miranda da Silva Júnior, Brazilian footballer 1985 – Meselech Melkamu, Ethiopian runner 1986 – Jenna Coleman, English actress 1986 – Hayley Mulheron, Scottish netball player 1986 – Dinara Safina, Russian tennis player 1987 – Taylor Chorney, American ice hockey player 1987 – Elliott Shriane, Australian speed skater 1987 – William Moseley, English actor 1987 – Wang Feifei, Chinese singer

engineer (d. 1978) 1896 – Wallace Carothers, American chemist and inventor of nylon (d. 1937) 1898 – Ludwig Bemelmans, Italian-American author and illustrator (d. 1962) 1899 – Walter Lantz, American animator, producer, screenwriter, and actor (d. 1994) 1900 – August Koern, Estonian politician and diplomat, Estonian Minister of Foreign Affairs in exile (d. 1989) 1901–present 1902 – Tiemoko Garan Kouyaté, Malian educator and activist (d. 1942) 1904 – Cecil Day-Lewis, Anglo-Irish poet and author (d. 1972) 1904 – Nikos Zachariadis, Greek politician (d. 1973) 1905 – John Kuck, American javelin thrower and shot putter (d. 1986) 1906 – Yiorgos Theotokas, Greek author and playwright (d. 1966) 1910 – Chiang Ching-kuo, Chinese politician, 3rd President of the Republic of China (d. 1988) 1911 – Bruno Beger, German anthropologist and ethnologist (d. 2009) 1911 – Chris Berger, Dutch sprinter and footballer (d. 1965) 1912 – Jacques de Bourbon-Busset, French author and politician (d. 2001) 1912 – Zohra Sehgal, Indian actress, dancer, and choreographer (d. 2014) 1913 – Philip Abelson, American physicist and author (d. 2004) 1913 – Irving Adler, American mathematician, author, and academic (d. 2012) 1913 – Luz Long, German long jumper and soldier (d. 1943) 1916 – Robert Hugh McWilliams, Jr., American sergeant, lawyer, and judge (d. 2013) 1916 – Enos Slaughter, American baseball player and manager (d. 2002) 1917 – Roman Matsov, Estonian violinist, pianist, and conductor (d. 2001) 1918 – Sten Rudholm, Swedish lawyer and jurist (d. 2008) 1920 – Guido Cantelli, Italian conductor (d. 1956) 1920 – Mark Krasnosel'skii, Ukrainian mathematician and academic (d. 1997) 1920 – James Robert Mann, American colonel, lawyer, and politician (d. 2010) 1920 – Edwin Morgan, Scottish poet and translator (d. 2010) 1921 – Robert Dhéry, French actor, director, and screenwriter (d. 2004) 1922 – Jack Klugman, American actor (d. 2012) 1922 – Sheila Scott, English nurse and pilot (d. 1988) 1923 – Betty Mae Tiger Jumper, Seminole chief (d. 2011) 1924 – Vernon B. Romney, American lawyer and politician, 14th Attorney General of Utah (d. 2013) 1925 – Derek Chinnery, English broadcaster (d. 2015) 1926 – Tim LaHaye, American minister, activist, and author (d. 2016) 1926 – Basil A. Paterson, American lawyer and politician, 59th Secretary of State of New York (d. 2014) 1926 – Alan Reynolds, English painter and educator (d. 2014) 1927 – Coretta Scott King, African-American activist and author (d. 2006) 1927 – Joe Moakley, American soldier, lawyer, and politician (d. 2001) 1929 – Nina Ponomaryova, Russian discus thrower and coach (d. 2016) 1931 – Igor Oistrakh, Ukrainian violinist and educator (d. 2021) 1932 – Anouk Aimée, French actress 1932 – Pik Botha, South African lawyer, politician, and diplomat, 8th South African Ambassador to the United States (d. 2018) 1932 – Casey Kasem, American disc jockey, music historian, radio celebrity, and voice actor; co-created American Top 40 (d. 2014) 1932 – Chuck Knox, American football coach (d. 2018) 1932 – Derek Minter, English motorcycle racer (d. 2015) 1932 – Gian-Carlo Rota, Italian-American mathematician and philosopher (d. 1999) 1933 – Peter Imbert, Baron Imbert, English police officer and politician, Lord Lieutenant for Greater London (d. 2017) 1935 – Theodoros Angelopoulos, Greek director, producer, and screenwriter (d. 2012) 1935 – Ron Morris, American pole vaulter and coach 1936 – Geoffrey Shovelton, English singer and illustrator (d. 2016) 1937 – Sandy Dennis, American actress (d. 1992) 1937 – Robin Eames, Irish Anglican archbishop 1937 – Richard Perham, English biologist and academic (d. 2015) 1938 – Earl Anthony, American bowler and sportscaster (d. 2001) 1938 – Alain Caron, Canadian ice hockey player (d. 1986) 1939 – Judy Carne, English actress and comedian (d. 2015) 1939 – Stanisław Dziwisz, Polish cardinal 1941 – Fethullah Gülen, Turkish preacher and theologian 1941 – Dilip Kumar Chakrabarti, Indian archaeologist 1941 – Lee Roy Jordan, American football player 1942 – Ruth Glick, American author 1942 – Jim Keltner, American drummer 1943 – Helmut Marko, Austrian race car driver and manager 1944 – Michael Fish, English meteorologist and journalist 1944 – Cuba Gooding Sr., American singer (d. 2017) 1944 – Herb Pedersen, American singer-songwriter and guitarist 1945 – Martin Chivers, English footballer and manager 1945 – Jack Deverell, English general 1945 – Helen Hodgman, Scottish-Australian author 1945 – Terry Willesee, Australian journalist and television host 1945 – August Wilson, American author and playwright (d. 2005) 1946 – Franz Roth, German footballer 1947 – G. K. Butterfield, African-American soldier, lawyer, and politician 1947 – Nick Greiner, Hungarian-Australian politician, 37th Premier of New South Wales 1947 – Pete Ham, Welsh singer-songwriter and guitarist (d. 1975) 1947 – Keith Magnuson, Canadian ice hockey player and coach (d. 2003) 1947 – Ann Peebles, American soul singer-songwriter 1948 – Frank Abagnale Jr., American security consultant and criminal 1948 – Josef Hickersberger, Austrian footballer, coach, and manager 1948 – Kate Pierson, American singer-songwriter and bass player 1949 – Grant Chapman, Australian businessman and politician 1950 – Jaime Fresnedi, Filipino politician 1950 – Paul Lockyer, Australian journalist (d. 2011) 1951 – Ace Frehley, American guitarist and songwriter 1952 – Larry Elder, American lawyer and talk show host 1952 – George Gervin, American basketball player 1952 – Ari Vatanen, Finnish race car driver and politician 1953 – Arielle Dombasle, French-American actress and model 1954 – Frank Bainimarama, Fijian commander and politician, 8th Prime Minister of Fiji 1954 – Herman Edwards, American football player, coach, and sportscaster 1954 – Mark Holden, Australian singer, actor, and lawyer 1955 – Gudrun Berend, German hurdler (d. 2011) 1955 – Eric Schmidt, American engineer and businessman 1956 – Bryan Harvey, American singer-songwriter and guitarist (d. 2006) 1956 – Jeff Probyn, English rugby player, coach, and manager 1957 – Willie Upshaw, American baseball player and manager 1959 – Sheena Easton, Scottish-American singer-songwriter, actress, and producer 1959 – Marco Pirroni, English singer-songwriter, guitarist, and producer 1960 – Mike Krushelnyski, Canadian ice hockey player and coach 1961 – Andrew Schlafly, American lawyer and activist, founded Conservapedia 1962 – Ángel Comizzo, Argentinian footballer and manager 1962 – Seppo Räty, Finnish javelin thrower and coach 1962 – Im Sang-soo, South Korean director and screenwriter 1962 – Andrew Selous, English soldier and politician 1963 – Russell T Davies, Welsh screenwriter and producer 1965 – Anna Chancellor, English actress 1966 – Peter McIntyre, Australian cricketer 1966 – Yoshihiro Togashi, Japanese illustrator 1967 – Willem-Alexander, King of the Netherlands 1967 – Tommy Smith, Scottish saxophonist, composer, and educator 1967 – Erik Thomson, Scottish-New Zealand actor 1967 – Jason Whitlock, American football player and journalist 1968 – Dana Milbank, American journalist and author 1969 – Cory Booker, African-American lawyer and politician 1969 – Darcey Bussell, English ballerina 1971 – Olari Elts, Estonian conductor 1972 – Nigel Barker, English photographer and author 1972 – Almedin Civa, Bosnian footballer and coach 1973 – Duško Adamović, Serbian footballer 1973 – Sharlee D'Angelo, Swedish bass player and songwriter 1973 – Sébastien Lareau, Canadian tennis player 1974 – Frank Catalanotto, American baseball player 1974 – Richard Johnson, Australian footballer 1975 – Rabih Abdullah, American football player 1975 – Chris Carpenter, American baseball player and manager 1975 – Pedro Feliz, Dominican baseball player 1975 – Kazuyoshi Funaki, Japanese ski jumper 1976 – Isobel Campbell, Scottish singer-songwriter and cellist 1976 – Sally Hawkins, English actress 1976 – Walter Pandiani, Uruguayan footballer 1976 – Faisal Saif, Indian director, screenwriter, and critic 1979 – Will Boyd, American bass player 1979 – Natasha Chokljat, Australian netball player 1979 – Vladimir Kozlov, Ukrainian wrestler 1980 – Sybille Bammer, Austrian tennis player 1980 – Talitha Cummins, Australian journalist 1980 – Christian Lara, Ecuadorian footballer 1981 – Joey Gathright, American baseball player 1981 – Patrik Gerrbrand, Swedish footballer 1982 – François Parisien, Canadian cyclist 1982 – Alexander Widiker, German rugby player 1983 – Ari Graynor, American actress and producer 1983 – Martin Viiask, Estonian basketball player 1984 – Pierre-Marc Bouchard, Canadian ice hockey player 1984 – Daniel Holdsworth, Australian rugby league player 1985 – José António de Miranda da Silva Júnior, Brazilian footballer 1985 – Meselech Melkamu, Ethiopian runner 1986 – Jenna Coleman, English actress 1986 – Hayley Mulheron, Scottish netball player 1986 – Dinara Safina, Russian tennis player 1987 – Taylor Chorney, American ice hockey player 1987 – Elliott Shriane, Australian speed skater 1987 – William Moseley, English actor 1987 – Wang Feifei, Chinese singer and actress 1988 – Joeri Dequevy, Belgian footballer 1988 – Kris Thackray, English footballer 1988 – Semyon Varlamov, Russian ice hockey player 1988 – Lizzo, American singer and rapper 1989 – Lars Bender, German footballer 1989 – Sven Bender, German footballer 1989 – Dmytro Kozban, Ukrainian footballer 1990 – Trude Raad, Norwegian deaf track and field athlete 1991 – Isaac Cuenca, Spanish footballer 1991 – Lara Gut, Swiss skier 1992 – Keenan Allen, American football player 1994 – Corey Seager, American baseball player 1995 – Nick Kyrgios, Australian tennis player 1997 – Josh Onomah, English footballer Deaths Pre-1600 630 – Ardashir III of Persia (b. 621) 1160 – Rudolf I, Count of Bregenz (b. 1081) 1272 – Zita, Italian saint (b. 1212) 1321 – Nicolò Albertini, Italian cardinal statesman (b. c. 1250) 1353 – Simeon of Moscow, Grand Prince of Moscow and Vladimir 1403 – Maria of Bosnia, Countess of Helfenstein (b. 1335) 1404 – Philip II, Duke of Burgundy (b. 1342) 1463 – Isidore of Kiev (b. 1385) 1521 – Ferdinand Magellan, Portuguese sailor and explorer (b. 1480) 1599 – Maeda Toshiie, Japanese general (b. 1538) 1601–1900 1605 – Pope Leo XI (b. 1535) 1607 – Edward Cromwell, 3rd Baron Cromwell, Governor of Lecale (b. 1560) 1613 – Robert Abercromby, Scottish priest and missionary (b. 1532) 1656 – Jan van Goyen, Dutch painter and illustrator (b. 1596) 1694 – John George IV, Elector of Saxony (b. 1668) 1695 – John Trenchard, English politician, Secretary of State for the Northern Department (b. 1640) 1702 – Jean Bart, French admiral (b. 1651) 1782 – William Talbot, 1st Earl Talbot, English politician, Lord Steward of the Household (b. 1710) 1813 – Zebulon Pike, American general and explorer (b. 1779) 1873 – William Macready, English actor and manager (b. 1793) 1882 – Ralph Waldo Emerson, American poet and philosopher (b. 1803) 1893 – John Ballance, Irish-born New Zealand journalist and politician, 14th Prime Minister of New Zealand (b. 1839) 1896 – Henry Parkes, English-Australian businessman and politician, 7th Premier of New South Wales (b. 1815) 1901–present 1915 – John Labatt, Canadian businessman (b. 1838) 1915 – Alexander Scriabin, Russian pianist and composer (b. 1872) 1932 – Hart Crane, American poet (b. 1899) 1936 – Karl Pearson, English mathematician and academic (b. 1857) 1937 – Antonio Gramsci, Italian sociologist, linguist, and politician (b. 1891) 1938 – Edmund Husserl, Czech mathematician and philosopher (b. 1859) 1952 – Guido Castelnuovo, Italian mathematician and statistician (b. 1865) 1961 – Roy Del Ruth, American director, producer, and screenwriter (b. 1893) 1962

were charged with distributing a controlled substance (DMT); however, the prosecution was unable to prove that the use of ayahuasca by members of the Santo Daime constituted a sufficient threat to public health and order such that it warranted denying their rights to religious freedom under ECHR Article 9. The 2001 verdict of the Amsterdam district court is an important precedent. Since then groups that are not affiliated to the Santo Daime have used ayahuasca, and a number of different "styles" have been developed, including non-religious approaches. Ayahuasca analogs In modern Europe and North America, ayahuasca analogs are often prepared using non-traditional plants which contain the same alkaloids. For example, seeds of the Syrian rue plant can be used as a substitute for the ayahuasca vine, and the DMT-rich Mimosa hostilis is used in place of chacruna. Australia has several indigenous plants which are popular among modern ayahuasqueros there, such as various DMT-rich species of Acacia. The name "ayahuasca" specifically refers to a botanical decoction that contains Banisteriopsis caapi. A synthetic version, known as pharmahuasca, is a combination of an appropriate MAOI and typically DMT. In this usage, the DMT is generally considered the main psychoactive active ingredient, while the MAOI merely preserves the psychoactivity of orally ingested DMT, which would otherwise be destroyed in the gut before it could be absorbed in the body. In contrast, traditionally among Amazonian tribes, the B. Caapi vine is considered to be the "spirit" of ayahuasca, the gatekeeper, and guide to the otherworldly realms. Brews similar to ayahuasca may be prepared using several plants not traditionally used in South America: DMT admixtures: Acacia maidenii (Maiden's wattle) – bark *not all plants are "active strains", meaning some plants will have very little DMT and others larger amounts Acacia phlebophylla, and other Acacias, most commonly employed in Australia – bark Anadenanthera peregrina, A. colubrina, A. excelsa, A. macrocarpa Desmanthus illinoensis (Illinois bundleflower) – root bark is mixed with a native source of beta-Carbolines (e.g., passion flower in North America) to produce a hallucinogenic drink called prairiehuasca. MAOI admixtures: Harmal (Peganum harmala, Syrian rue) – seeds Passion flower synthetic MAOIs, especially RIMAs Effects People who have consumed ayahuasca report having mystical experiences and spiritual revelations regarding their purpose on earth, the true nature of the universe, and deep insight into how to be the best person they possibly can. This is viewed by many as a spiritual awakening and what is often described as a near-death experience or rebirth. It is often reported that individuals feel they gain access to higher spiritual dimensions and make contact with various spiritual or extra-dimensional beings who can act as guides or healers. The experiences that people have while under the influence of ayahuasca are also culturally influenced. Westerners typically describe experiences with psychological terms like "ego death" and understand the hallucinations as repressed memories or metaphors of mental states. However, at least in Iquitos, Peru (a center of ayahuasca ceremonies), those from the area describe the experiences more in terms of the actions in the body and understand the visions as reflections of their environment—sometimes including the person who they believe caused their illness—as well as interactions with spirits. Recently, ayahuasca has been found to interact specifically with the visual cortex of the brain. In one study, de Araujo et al. measured the activity in the visual cortex when they showed participants photographs. Then, they measured the activity when the individuals closed their eyes. In the control group, the cortex was activated when looking at the photos, and less active when the participant closed his eyes; however, under the influence of ayahuasca and DMT, even with closed eyes, the cortex was just as active as when looking at the photographs. This study suggests that ayahuasca activates a complicated network of vision and memory which heightens the internal reality of the participants. It is claimed that people may experience profound positive life changes subsequent to consuming ayahuasca, by author Don Jose Campos and others. Vomiting can follow ayahuasca ingestion; this is considered by many shamans and experienced users of ayahuasca to be a purging and an essential part of the experience, representing the release of negative energy and emotions built up over the course of one's life. Others report purging in the form of diarrhea and hot/cold flashes. The ingestion of ayahuasca can also cause significant but temporary emotional and psychological distress. Excessive use could possibly lead to serotonin syndrome (although serotonin syndrome has never been specifically caused by ayahuasca except in conjunction with certain anti-depressants like SSRIs). Depending on dosage, the temporary non-entheogenic effects of ayahuasca can include tremors, nausea, vomiting, diarrhea, autonomic instability, hyperthermia, sweating, motor function impairment, sedation, relaxation, vertigo, dizziness, and muscle spasms which are primarily caused by the harmala alkaloids in ayahuasca. Long-term negative effects are not known. A few deaths linked to participation in the consumption of ayahuasca have been reported. Some of the deaths may have been due to unscreened preexisting heart conditions, interaction with drugs, such as antidepressants, recreational drugs, caffeine (due to the CYP1A2 inhibition of the harmala alkaloids), nicotine (from drinking tobacco tea for purging/cleansing), or from improper/irresponsible use due to behavioral risks or possible drug to drug interactions. Potential therapeutic effects There are potential antidepressant and anxiolytic effects of ayahuasca. For example, in 2018 it was reported that a single dose of ayahuasca significantly reduced symptoms of treatment-resistant depression in a small placebo-controlled trial. More specifically, statistically significant reductions of up to 82% in depressive scores were observed between baseline and 1, 7, and 21 days after ayahuasca administration, as measured on the Hamilton Rating Scale for Depression (HAM-D), the Montgomery-Åsberg Depression Rating Scale (MADRS), and the Anxious-Depression subscale of the Brief Psychiatric Rating Scale (BPRS). Other placebo-controlled research has provided evidence that ayahuasca can help improve self-perceptions in those with social anxiety disorder. Ayahuasca has also been studied for the treatment of addictions and shown to be effective, with lower Addiction Severity Index scores seen in users of ayahuasca compared to controls. Ayahuasca users have also been seen to consume less alcohol. Both in vitro and in vivo experiments have shown the DMT component of ayahuasca may induce the production of new neurons in the hippocampus. Murine test subjects performed better on memory tasks compared to a control group. Future research may lead to treatments for psychiatric and neurological disorders. Chemistry and pharmacology Harmala alkaloids are MAO-inhibiting beta-carbolines. The three most studied harmala alkaloids in the B. caapi vine are harmine, harmaline and tetrahydroharmine. Harmine and harmaline are selective and reversible inhibitors of monoamine oxidase A (MAO-A), while tetrahydroharmine is a weak serotonin reuptake inhibitor (SRI). This inhibition of MAO-A allows DMT to diffuse unmetabolized past the membranes in the stomach and small intestine, and eventually cross the blood–brain barrier (which, by itself, requires no MAO-A inhibition) to activate receptor sites in the brain. Without RIMAs or the non-selective, nonreversible monoamine oxidase inhibition by drugs like phenelzine and tranylcypromine, DMT would be oxidized (and thus rendered biologically inactive) by monoamine oxidase enzymes in the digestive tract. Individual polymorphisms of the cytochrome P450-2D6 enzyme affect the ability of individuals to metabolize harmine. Some natural tolerance to habitual use of ayahuasca (roughly once weekly) may develop through upregulation of the serotonergic system. A phase 1 pharmacokinetic study on ayahuasca (as Hoasca) with 15 volunteers was conducted in 1993, during the Hoasca Project. A review of the Hoasca Project has been published. The compound N,N-dimethyltryptamine (DMT) found in ayahuasca has been shown to be immunoregulatory by preventing severe hypoxia and oxidative stress in in vitro macrophages, cortical neurons, and dendritic cells by binding to the Sigma-1 receptor. In vitro co-treatment of monocyte derived dendritic cells with DMT and 5-MeO-DMT inhibited the production of pro-inflammatory cytokines IL-1β, IL-6, TNFα and the chemokine IL-8, while increased the secretion of the anti-inflammatory cytokine IL-10 by activating the Sigma-1 receptor. Neurogenesis Several studies have shown the alkaloids in the B. caapi vine promote neurogenesis. More specifically, in vitro studies showed that harmine, tetrahydroharmine and harmaline, stimulated neural stem cell proliferation, migration, and differentiation into adult neurons. In vivo studies conducted on the dentate gyrus of the hippocampus noted an increase in the proliferation of BrdU positive cells in response to 100 μg of 5-MeO-DMT injected intravenously in the adult mouse brain. Legal status Internationally, DMT is a Schedule I drug under the Convention on Psychotropic Substances. The Commentary on the Convention on Psychotropic Substances notes, however, that the plants containing it are not subject to international control: The cultivation of plants from which psychotropic substances are obtained is not controlled by the Vienna Convention... Neither the crown (fruit, mescal button) of the Peyote cactus nor the roots of the plant Mimosa hostilis nor Psilocybe mushrooms themselves are included in Schedule 1, but only their respective principals, mescaline, DMT, and psilocin. A fax from the Secretary of the International Narcotics Control Board (INCB) to the Netherlands Ministry of Public Health sent in 2001 goes on to state that "Consequently, preparations (e.g. decoctions) made of these plants, including ayahuasca, are not under international control and, therefore, not subject to any of the articles of the 1971 Convention." Despite the INCB's 2001 affirmation that ayahuasca is not subject to drug control by international convention, in its 2010 Annual Report the Board recommended that governments consider controlling (i.e. criminalizing) ayahuasca at the national level. This recommendation by the INCB has been criticized as an attempt by the Board to overstep its legitimate mandate and as establishing a reason for governments to violate the human rights (i.e., religious freedom) of ceremonial ayahuasca drinkers. Under American federal law, DMT is a Schedule I drug that is illegal to possess or consume; however, certain religious groups have been legally permitted to consume ayahuasca. A court case allowing the União do Vegetal to import and use the tea for religious purposes in the United States, Gonzales v. O Centro Espirita Beneficente Uniao do Vegetal, was heard by the U.S. Supreme Court on November 1, 2005; the decision, released February 21, 2006, allows the UDV to use the tea in its ceremonies pursuant to the Religious Freedom Restoration Act. In a similar case an Ashland, Oregon-based Santo Daime church sued for their right to import and consume ayahuasca tea. In March 2009, U.S. District Court Judge Panner ruled in favor of the Santo Daime, acknowledging its protection from prosecution under the Religious Freedom Restoration Act. In 2017 the Santo Daime Church Céu do Montréal in Canada received religious exemption to use ayahuasca as a sacrament in their rituals. Religious use in Brazil was legalized after two official inquiries into the tea in the mid-1980s, which concluded that ayahuasca is not a recreational drug and has valid spiritual uses. In France, Santo Daime won a court case allowing them to use the tea in early 2005; however, they were not allowed an exception for religious purposes, but rather for the simple reason that they did not perform chemical extractions to end up with pure DMT and harmala and the plants used were not scheduled. Four months after the court victory, the common ingredients of

of ayahuasca to be a purging and an essential part of the experience, representing the release of negative energy and emotions built up over the course of one's life. Others report purging in the form of diarrhea and hot/cold flashes. The ingestion of ayahuasca can also cause significant but temporary emotional and psychological distress. Excessive use could possibly lead to serotonin syndrome (although serotonin syndrome has never been specifically caused by ayahuasca except in conjunction with certain anti-depressants like SSRIs). Depending on dosage, the temporary non-entheogenic effects of ayahuasca can include tremors, nausea, vomiting, diarrhea, autonomic instability, hyperthermia, sweating, motor function impairment, sedation, relaxation, vertigo, dizziness, and muscle spasms which are primarily caused by the harmala alkaloids in ayahuasca. Long-term negative effects are not known. A few deaths linked to participation in the consumption of ayahuasca have been reported. Some of the deaths may have been due to unscreened preexisting heart conditions, interaction with drugs, such as antidepressants, recreational drugs, caffeine (due to the CYP1A2 inhibition of the harmala alkaloids), nicotine (from drinking tobacco tea for purging/cleansing), or from improper/irresponsible use due to behavioral risks or possible drug to drug interactions. Potential therapeutic effects There are potential antidepressant and anxiolytic effects of ayahuasca. For example, in 2018 it was reported that a single dose of ayahuasca significantly reduced symptoms of treatment-resistant depression in a small placebo-controlled trial. More specifically, statistically significant reductions of up to 82% in depressive scores were observed between baseline and 1, 7, and 21 days after ayahuasca administration, as measured on the Hamilton Rating Scale for Depression (HAM-D), the Montgomery-Åsberg Depression Rating Scale (MADRS), and the Anxious-Depression subscale of the Brief Psychiatric Rating Scale (BPRS). Other placebo-controlled research has provided evidence that ayahuasca can help improve self-perceptions in those with social anxiety disorder. Ayahuasca has also been studied for the treatment of addictions and shown to be effective, with lower Addiction Severity Index scores seen in users of ayahuasca compared to controls. Ayahuasca users have also been seen to consume less alcohol. Both in vitro and in vivo experiments have shown the DMT component of ayahuasca may induce the production of new neurons in the hippocampus. Murine test subjects performed better on memory tasks compared to a control group. Future research may lead to treatments for psychiatric and neurological disorders. Chemistry and pharmacology Harmala alkaloids are MAO-inhibiting beta-carbolines. The three most studied harmala alkaloids in the B. caapi vine are harmine, harmaline and tetrahydroharmine. Harmine and harmaline are selective and reversible inhibitors of monoamine oxidase A (MAO-A), while tetrahydroharmine is a weak serotonin reuptake inhibitor (SRI). This inhibition of MAO-A allows DMT to diffuse unmetabolized past the membranes in the stomach and small intestine, and eventually cross the blood–brain barrier (which, by itself, requires no MAO-A inhibition) to activate receptor sites in the brain. Without RIMAs or the non-selective, nonreversible monoamine oxidase inhibition by drugs like phenelzine and tranylcypromine, DMT would be oxidized (and thus rendered biologically inactive) by monoamine oxidase enzymes in the digestive tract. Individual polymorphisms of the cytochrome P450-2D6 enzyme affect the ability of individuals to metabolize harmine. Some natural tolerance to habitual use of ayahuasca (roughly once weekly) may develop through upregulation of the serotonergic system. A phase 1 pharmacokinetic study on ayahuasca (as Hoasca) with 15 volunteers was conducted in 1993, during the Hoasca Project. A review of the Hoasca Project has been published. The compound N,N-dimethyltryptamine (DMT) found in ayahuasca has been shown to be immunoregulatory by preventing severe hypoxia and oxidative stress in in vitro macrophages, cortical neurons, and dendritic cells by binding to the Sigma-1 receptor. In vitro co-treatment of monocyte derived dendritic cells with DMT and 5-MeO-DMT inhibited the production of pro-inflammatory cytokines IL-1β, IL-6, TNFα and the chemokine IL-8, while increased the secretion of the anti-inflammatory cytokine IL-10 by activating the Sigma-1 receptor. Neurogenesis Several studies have shown the alkaloids in the B. caapi vine promote neurogenesis. More specifically, in vitro studies showed that harmine, tetrahydroharmine and harmaline, stimulated neural stem cell proliferation, migration, and differentiation into adult neurons. In vivo studies conducted on the dentate gyrus of the hippocampus noted an increase in the proliferation of BrdU positive cells in response to 100 μg of 5-MeO-DMT injected intravenously in the adult mouse brain. Legal status Internationally, DMT is a Schedule I drug under the Convention on Psychotropic Substances. The Commentary on the Convention on Psychotropic Substances notes, however, that the plants containing it are not subject to international control: The cultivation of plants from which psychotropic substances are obtained is not controlled by the Vienna Convention... Neither the crown (fruit, mescal button) of the Peyote cactus nor the roots of the plant Mimosa hostilis nor Psilocybe mushrooms themselves are included in Schedule 1, but only their respective principals, mescaline, DMT, and psilocin. A fax from the Secretary of the International Narcotics Control Board (INCB) to the Netherlands Ministry of Public Health sent in 2001 goes on to state that "Consequently, preparations (e.g. decoctions) made of these plants, including ayahuasca, are not under international control and, therefore, not subject to any of the articles of the 1971 Convention." Despite the INCB's 2001 affirmation that ayahuasca is not subject to drug control by international convention, in its 2010 Annual Report the Board recommended that governments consider controlling (i.e. criminalizing) ayahuasca at the national level. This recommendation by the INCB has been criticized as an attempt by the Board to overstep its legitimate mandate and as establishing a reason for governments to violate the human rights (i.e., religious freedom) of ceremonial ayahuasca drinkers. Under American federal law, DMT is a Schedule I drug that is illegal to possess or consume; however, certain religious groups have been legally permitted to consume ayahuasca. A court case allowing the União do Vegetal to import and use the tea for religious purposes in the United States, Gonzales v. O Centro Espirita Beneficente Uniao do Vegetal, was heard by the U.S. Supreme Court on November 1, 2005; the decision, released February 21, 2006, allows the UDV to use the tea in its ceremonies pursuant to the Religious Freedom Restoration Act. In a similar case an Ashland, Oregon-based Santo Daime church sued for their right to import and consume ayahuasca tea. In March 2009, U.S. District Court Judge Panner ruled in favor of the Santo Daime, acknowledging its protection from prosecution under the Religious Freedom Restoration Act. In 2017 the Santo Daime Church Céu do Montréal in Canada received religious exemption to use ayahuasca as a sacrament in their rituals. Religious use in Brazil was legalized after two official inquiries into the tea in the mid-1980s, which concluded that ayahuasca is not a recreational drug and has valid spiritual uses. In France, Santo Daime won a court case allowing them to use the tea in early 2005; however, they were not allowed an exception for religious purposes, but rather for the simple reason that they did not perform chemical extractions to end up with pure DMT and harmala and the plants used were not scheduled. Four months after the court victory, the common ingredients of ayahuasca as well as harmala were declared stupéfiants, or narcotic schedule I substances, making the tea and its ingredients illegal to use or possess. In June 2019, Oakland, California, decriminalized natural entheogens. The City Council passed the resolution in a unanimous vote, ending the investigation and imposition of criminal penalties for use and possession of entheogens derived from plants or fungi. The resolution states: "Practices with Entheogenic Plants have long existed and have been considered to be sacred to human cultures and human interrelationships with nature for thousands of years, and continue to be enhanced and improved to this day by religious and spiritual leaders, practicing professionals, mentors, and healers throughout the world, many of whom have been forced underground." In January 2020, Santa Cruz, California, and in September 2020, Ann Arbor, Michigan, decriminalized natural entheogens. Intellectual property issues Ayahuasca has also stirred debate regarding intellectual property protection of traditional knowledge. In 1986 the US Patent and Trademarks Office allowed the granting of a patent on the ayahuasca vine B. caapi. It allowed this patent based on the assumption that ayahuasca's properties had not been previously described in writing. Several public interest groups, including the Coordinating Body of Indigenous Organizations of the Amazon Basin (COICA) and the Coalition for Amazonian Peoples and Their Environment (Amazon Coalition) objected. In 1999 they brought a legal challenge to this patent which had granted a private US citizen "ownership" of the knowledge of a plant that is well-known and sacred to many indigenous peoples of the Amazon, and used by them in religious and healing ceremonies. Later that year

born in Santiago, Chile. He wrote the first important symphonic work in Chilean tradition, "La Muerte de Alcino", a symphonic poem inspired by the novel of Pedro Prado. He composed many art songs in different languages and important piano pieces, like the five

Chile and Latin America. He won the National Art Prize in 1957. Leng was also an accomplished dentist in Santiago. As a dentist, he was the main founder of the dentistry faculty of the Universidad de Chile, and he was eventually elected as the first dean. Leng was the nephew of composer Carmela Mackenna. References 1884 births 1974 deaths Chilean classical composers Chilean male composers Chilean dentists Musicians from Santiago University of Chile faculty Chilean people of Chinese descent 20th-century Chilean musicians

the Abbe number Vd of a material versus its refractive index nd. Glasses can then be categorised and selected according to their positions on the diagram. This can be a letter-number code, as used in the Schott Glass catalogue, or a 6-digit glass code. Glasses' Abbe numbers, along with their mean refractive indices, are used in the calculation of the required refractive powers of the elements of achromatic lenses in order to cancel chromatic aberration to first order. Note that these two parameters which enter into the equations for design of achromatic doublets are exactly what is plotted on an Abbe diagram. Due to the difficulty and inconvenience in producing sodium and hydrogen lines, alternate definitions of the Abbe number are often substituted (ISO 7944). Rather than the standard definition, above, using the refractive index variation between the F and C hydrogen lines, an alternative measure using the subscript "e" takes the difference between the refractive indices of the blue and red cadmium lines at 480.0 nm and 643.8 nm (with ne referring to the wavelength of the mercury e-line, 546.073 nm). Other definitions can similarly be employed; the following table lists standard wavelengths at which n is commonly determined, including the standard subscripts employed. Derivation Starting from the Lensmaker's equation for a thin lens The change of refractive power P between the two wavelengths

the longest is nlong. Abbe numbers are used to classify glass and other optical materials in terms of their chromaticity. For example, the higher dispersion flint glasses have V < 55 whereas the lower dispersion crown glasses have larger Abbe numbers. Values of V range from below 25 for very dense flint glasses, around 34 for polycarbonate plastics, up to 65 for common crown glasses, and 75 to 85 for some fluorite and phosphate crown glasses. Abbe numbers are used in the design of achromatic lenses, as their reciprocal is proportional to dispersion (slope of refractive index versus wavelength) in the wavelength region where the human eye is most sensitive (see graph). For different wavelength regions, or for higher precision in characterizing a system's chromaticity (such as in the design of apochromats), the full dispersion relation (refractive index as a function of wavelength) is used. Abbe diagram An Abbe diagram, also called 'the glass veil', is produced by plotting the Abbe number Vd of a material versus its refractive index nd. Glasses can then be categorised and selected according to their positions on the diagram. This can be a letter-number code, as used in the Schott Glass catalogue, or a 6-digit glass code. Glasses' Abbe numbers, along with their mean refractive indices, are used in the calculation of the required refractive powers of the elements of achromatic lenses in order to cancel chromatic aberration to first order. Note that these two parameters which enter into the equations for design of achromatic doublets are exactly what is plotted on an Abbe diagram. Due to the difficulty and inconvenience in producing sodium and hydrogen lines, alternate definitions of the Abbe number are often substituted (ISO 7944). Rather than the

Algebraic Chess Notation, the standard notation for recording chess games American Collectibles Network, now Jewelry Television, US Andean Community of Nations Anglican Communion Network, Pittsburgh, US Ante Christum Natum, seldom-used Latin equivalent of B.C. Architecture for Control Networks, network protocol for theatrical control Atlantis Cable News, fictional news channel on The Newsroom (U.S.

Nigeria, political party of Nigeria Africa Cup of Nations, biennial football tournament Agencia Carabobeña de Noticias, news agency, Valencia, Venezuela Agència Catalana de Notícies, news agency, Barcelona, Spain Aid to the Church in Need, Catholic charity in Königstein im Taunus,

Dhabi AD, herbarium code for the State Herbarium of South Australia People Ad (name), a given name, and a list of people with the name ‘Ad, great-grandson of Shem, son of Noah Anthony Davis (born 1993), American basketball player Antonio Davis (born 1968), American basketball player A. D. Loganathan (1888–1949), Indian major general A. D. Whitfield (born 1943), American football player A. D. Winans (born 1936), American author A.D., nickname of Adrian Peterson (born 1985), American football player Art, entertainment, and media Film and television A.D. (film), a 2010 animated zombie horror film A.D. (miniseries), a 1985 television miniseries set in ancient Rome A.D. The Bible Continues, a television miniseries aired in 2015 Arrested Development, an American television sitcom Music AD (band), a Christian rock band A.D. (album), by Solace Publications A.D.: New Orleans After the Deluge, a nonfiction graphic novel about Hurricane Katrina Algemeen Dagblad, a Dutch newspaper Architectural Digest AD (poem), by Kenneth Fearing Other art, entertainment, and media Audio description track, a narration track for visually impaired consumers of visual media Brands and enterprises Akcionersko društvo (aкционерско друштво), a Macedonian name for a type of company Aktsionerno drujestvo (акционерно дружество), a Bulgarian name for a type of company akcionarsko društvo (aкционарско друштво), a Serbian name for a type of company Analog Devices, a semiconductor company Military Accidental discharge, the mistaken firing of a firearm Active duty, a status of full duty or service,

(name), a given name, and a list of people with the name ‘Ad, great-grandson of Shem, son of Noah Anthony Davis (born 1993), American basketball player Antonio Davis (born 1968), American basketball player A. D. Loganathan (1888–1949), Indian major general A. D. Whitfield (born 1943), American football player A. D. Winans (born 1936), American author A.D., nickname of Adrian Peterson (born 1985), American football player Art, entertainment, and media Film and television A.D. (film), a 2010 animated zombie horror film A.D. (miniseries), a 1985 television miniseries set in ancient Rome A.D. The Bible Continues, a television miniseries aired in 2015 Arrested Development, an American television sitcom Music AD (band), a Christian rock band A.D. (album), by Solace Publications A.D.: New Orleans After the Deluge, a nonfiction graphic novel about Hurricane Katrina Algemeen Dagblad, a Dutch newspaper Architectural Digest AD (poem), by Kenneth Fearing Other art, entertainment, and media Audio description track, a narration track for visually impaired consumers of visual media Brands and enterprises Akcionersko društvo (aкционерско друштво), a Macedonian name for a type of company Aktsionerno drujestvo (акционерно дружество), a Bulgarian name for a type of company akcionarsko društvo (aкционарско друштво), a Serbian name for a type of company Analog Devices, a semiconductor company Military Accidental discharge, the mistaken firing of a firearm Active duty, a status of full duty or service, usually in the armed forces Air defense, anti-aircraft weaponry and systems Air Department, part of the British Admiralty "Destroyer tender", a type of support ship (US Navy hull classification symbol AD) Douglas Skyraider, a Navy attack aircraft originally designated AD Organizations Action directe (armed group), in France Democratic Action (Venezuela) (Spanish: Acción Democrática), a political party Democratic Alternative (Malta) (Maltese: Alternattiva Demokratika), a defunct political party Professions Art director, for a magazine or newspaper Assistant director, a film or television crew member Athletic director, the administrator of an

fifth case, rasa rrjedhore. Sanskrit In Sanskrit, the ablative case is the fifth case (pañcamī) and has a similar function to that in Latin. Sanskrit nouns in the ablative often refer to a subject "out of" which or "from" whom something (an action, an object) has arisen or occurred: pátram taróḥ pátati "the leaf falls from the tree". It is also used for nouns in several other senses, as for actions occurring "because of" or "without" a certain noun, indicating distance or direction. When it appears with a comparative adjective, (śreṣṭhatamam, "the best"), the ablative is used to refer to what the adjective is comparing: "better than X". Armenian The modern Armenian ablative has different markers for each main dialect, both originating from Classical Armenian. The Western Armenian affix -է -ē (definite -էն -ēn) derives from the classical singular; the Eastern Armenian affix -ից -ic’ (both indefinite and definite) derives from the classical plural. For both dialects, those affixes are singular, with the corresponding plurals being -(ն)երէ(ն) and -(ն)երից . The ablative case has several uses. Its principal function is to show "motion away" from a location, point in space or time: It also shows the agent when it is used with the passive voice of the verb: It is also used for comparative statements in colloquial Armenian (including infinitives and participles): Finally, it governs certain postpositions: Uralic languages Finnish In Finnish, the ablative case is the sixth of the locative cases with the meaning "from, off, of": pöytä – pöydältä "table – off from the table". It is an outer locative case, used like the adessive and allative cases, to denote both being on top of something and "being around the place" (as opposed to the inner locative case, the elative, which means "from out of" or "from the inside of"). With the locative, the

was used in the Homeric, pre-Mycenaean, and Mycenean periods. It fell into disuse during the classical period and thereafter with some of its functions taken by the genitive and others by the dative; the genitive had functions belonging to the Proto-Indo-European genitive and ablative cases. The genitive case with the prepositions "away from" and "out of" is an example. German German does not have an ablative case but, exceptionally, Latin ablative case-forms were used from the seventeenth to the nineteenth century after some prepositions, for example after von in von dem Nomine: ablative of the Latin loanword Nomen. Grammarians at that time, Justus Georg Schottel, Kaspar von Stieler ("der Spate"), Johann Balthasar von Antesperg and Johann Christoph Gottsched, listed an ablative case (as the sixth case after nominative, genitive, dative, accusative and vocative) for German words. They arbitrarily considered the dative case after some prepositions to be an ablative, as in ("from the man" or "of the man") and ("with the man"), while they considered the dative case after other prepositions or without a preposition, as in , to be a dative. Albanian The ablative case is found in Albanian; it is the fifth case, rasa rrjedhore. Sanskrit In Sanskrit, the ablative case is the fifth case (pañcamī) and has a similar function to that in Latin. Sanskrit nouns in the ablative often refer to a subject "out of" which or "from" whom something (an action, an object) has arisen or occurred: pátram taróḥ pátati "the leaf falls from the tree". It is also used for nouns in several other senses, as for actions occurring "because of" or "without" a certain noun, indicating distance or direction. When it appears with a comparative adjective, (śreṣṭhatamam, "the best"), the ablative is used to refer to what the adjective is comparing: "better than X". Armenian The modern Armenian ablative has different markers for each main dialect, both originating from Classical Armenian. The Western Armenian affix -է -ē (definite -էն -ēn) derives from the classical singular; the Eastern Armenian affix -ից -ic’ (both indefinite and definite) derives from the classical plural. For both dialects, those affixes are singular, with the corresponding plurals being -(ն)երէ(ն) and -(ն)երից . The ablative case has several uses. Its principal function is to show "motion away" from a location, point in space or time: It also shows the agent when it is used with the passive voice of the verb: It is also used for comparative statements in colloquial Armenian (including

the early years of the movement, and it was commonly believed that the incomprehensible language spoken during these incidents was the language of Adam. However, this belief seems to have never been formally or officially adopted. Some other early Latter Day Saint leaders, including Brigham Young, Orson Pratt, and Elizabeth Ann Whitney, claimed to have received several words in the Adamic language by revelation. Some Latter Day Saints believe that the Adamic language is the "pure language" spoken of by Zephaniah and that it will be restored as the universal language of humankind at the end of the world. Apostle Orson Pratt declared that "Ahman", part of the name of the settlement "Adam-ondi-Ahman" in Daviess County, Missouri, was the name of God in the Adamic language. An 1832 handwritten page from the Joseph Smith Papers, titled "A Sample of the Pure Language", and reportedly dictated by Smith to "Br. Johnson", asserts that the name of God is Awman. The Latter Day Saint endowment prayer circle once included use of the words "Pay Lay Ale". These untranslated words are no longer used in temple ordinances and have been replaced by an English version, "O God, hear the words of my mouth". Some believe that the "Pay Lay Ale" sentence is derived from the Hebrew phrase "pe le-El" (), "mouth to God". "Pay Lay Ale" was identified in the temple ceremony as words from the "pure Adamic language". Other words thought by some Latter Day Saints to derive from the Adamic language include deseret ("honey bee") and Ahman ("God"). The Book of Moses refers to "a book of remembrance" written in the language of Adam. Goidelic languages It has also been claimed that Scottish Gaelic or Irish was the language spoken in the Garden of Eden. One book that promoted this theory was Adhamh agus Eubh, no Craobh Sheanachais nan Gàël (1837; "Adam and Eve; or, the Gaelic Family Tree"). See also History of linguistics Mythical origins of language Origin of language Proto-Human language Universal language References Bibliography Allison P. Coudert (ed.), The Language of Adam = Die Sprache Adams, Wiesbaden: Harrassowitz, 1999. Angelo Mazzocco, Linguistic Theories in Dante and the Humanists, (chapter 9: "Dante's Reappraisal of the Adamic language", 159–181). Umberto Eco, The Search for the Perfect Language (1993). Dante Alighieri Garden of Eden Hebrew language Kabbalah Language and mysticism Latter Day Saint temple practices Midrashim Obsolete scientific theories Proto-languages Religious language

that according to Genesis, the first speech act is due to Eve, addressing the serpent, and not to Adam. In his Divine Comedy (c. 1308–1320), however, Dante changes his view to another that treats the Adamic language as the product of Adam. This had the consequence that it could no longer be regarded as immutable, and hence Hebrew could not be regarded as identical with the language of Paradise. Dante concludes (Paradiso XXVI) that Hebrew is a derivative of the language of Adam. In particular, the chief Hebrew name for God in scholastic tradition, El, must be derived of a different Adamic name for God, which Dante gives as I. Early modern period Proponents Elizabethan scholar John Dee makes references to an occult or angelic language recorded in his private journals and those of spirit medium Edward Kelley. Dee's journals did not describe the language as "Enochian", instead preferring "Angelical", the "Celestial Speech", the "Language of Angels", the "First Language of God-Christ", the "Holy Language", or "Adamical" because, according to Dee's Angels, it was used by Adam in Paradise to name all things. The language was later dubbed Enochian, due to Dee's assertion that the Biblical Patriarch Enoch had been the last human (before Dee and Kelley) to know the language. Dutch physician, linguist, and humanist Johannes Goropius Becanus (1519–1572) theorized in Origines Antwerpianae (1569) that Antwerpian Brabantic, spoken in the region between the Scheldt and Meuse Rivers, was the original language spoken in Paradise. Goropius believed that the most ancient language on Earth would be the simplest language, and that the simplest language would contain mostly short words. Since Brabantic has a higher number of short words than do Latin, Greek, and Hebrew, Goropius reasoned that it was the older language. His work influenced that of Simon Stevin (1548–1620), who espoused similar ideas in "Uytspraeck van de weerdicheyt der Duytse tael", a chapter in De Beghinselen Der Weeghconst (1586). Opponents By the 17th century, the existence and nature of the alleged Adamic language was commonly discussed amongst European Jewish and Christian mystics and primitive linguists. Robert Boyle (1627–1691) was skeptical that Hebrew was the language best capable of describing the nature of things, stating: I could never find, that the Hebrew names of animals, mentioned in the beginning of Genesis, argued a (much) clearer insight into their natures, than did the names of the same or some other animals in

lead boring, purposeless lives, Fatty and Moses spread the gospel of Mahagonny, city of gold, among the disillusioned. Scene 4 Four Alaskan Lumberjacks who have shared hard times together in the timberlands and made their fortunes set off together for Mahagonny. Jimmy Mahoney and his three friends – Jacob Schmidt, Bank Account Billy, and Alaska Wolf Joe – sing of the pleasures awaiting them in "Off to Mahagonny", and look forward to the peace and pleasure they will find there. Scene 5 The four friends arrive in Mahagonny, only to find other disappointed travelers already leaving. Begbick, well-informed about their personal tastes, marks down her prices, but for the penurious Billy, they still seem too high. Jimmy impatiently calls for the girls of Mahagonny to show themselves, so he can make a choice. Begbick suggests Jenny as the right girl for Jack, who finds her rates too high. She pleads with Jack to reconsider ("Havana Song"), which arouses Jim's interest, and he chooses her. Jenny and the girls sing a tribute to "the Jimmys from Alaska." Scene 6 Jimmy and Jenny get to know one another as she asks him to define the terms of their contact: Does he wish her to wear her hair up or down, to wear fancy underwear or none at all? "What is your wish?" asks Jim, but Jenny evades answering. Scene 7 Begbick, Fatty, and Moses meet to discuss the pleasure city's financial crisis: People are leaving in droves, and the price of whiskey is sinking rapidly. Begbick suggests going back to civilization, but Fatty reminds her that the federal agents have been inquiring for her in nearby Pensacola. Money would solve everything, declares Begbick, and she decides to soak the four new arrivals for all they've got. Scene 8 Jimmy, restless, attempts to leave Mahagonny because he misses the wife he left in Alaska. Scene 9 In front of the Rich Man's Hotel, Jimmy and the others sit lazily as a pianist plays Tekla Bądarzewska's "A Maiden's Prayer". With growing anger, Jimmy sings of how his hard work and suffering in Alaska have led only to this. Drawing a knife, he shouts for Begbick, while his friends try to disarm him and the other men call to have him thrown out. Calm again, he tells Begbick that Mahagonny can never make people happy: it has too much peace and quiet. Scene 10 As if in answer to Jimmy's complaint, the city is threatened by a hurricane. Everyone sings in horror of the destruction awaiting them. Scene 11 Tensely, people watch for the hurricane's arrival. The men sing a hymn-like admonition not to be afraid. Jim meditatively compares Nature's savagery to the far greater destructiveness of Man. Why do we build, he asks, if not for the pleasure of destroying? Since Man can outdo any hurricane, fear makes no sense. For the sake of human satisfaction, nothing should be forbidden: If you want another man's money, his house or his wife, knock him down and take it; do what you please. As Begbick and the men ponder Jimmy's philosophy, Fatty and Moses rush in with news: The hurricane has unexpectedly struck Pensacola, destroying Begbick's enemies, the federal agents. Begbick and her cohorts take it as a sign that Jimmy is right; they join him, Jenny, and his three friends in singing a new, defiant song: If someone walks over someone else, then it's me, and if someone gets walked on, then it's you. In the background, the men continue to chant their hymn as the hurricane draws nearer. Act 2 Scene 12 Magically, the hurricane bypasses Mahagonny, and the people sing in awe of their miraculous rescue. This confirms Begbick's belief in the philosophy of "Do what you want," and she proceeds to put it into effect. Scene 13 at the renovated "Do It" tavern. The men sing of the four pleasures of life: Eating, Lovemaking, Fighting, and Drinking. First comes eating: To kitschy cafe music, Jimmy's friend Jacob gorges until he keels over and dies. The men sing a chorale over his body, saluting "a man without fear". Scene 14: Loving. While Begbick collects money and issues tips on behavior, Moses placates the impatient men queuing to make love to Jenny and the other whores. The men sing the "Mandalay Song", warning that love does not last forever, and urging those ahead of them to make it snappy. Scene 15: Fighting. The men flock to see a boxing match between Trinity Moses and Jim's friend Alaska Wolf Joe. While most of the men, including the ever-cautious Billy, bet on the burly Moses, Jim, out of friendship, bets heavily on Joe. The match is manifestly unfair; Moses not only wins but kills Joe in knocking him out. Scene 16: Drinking. In an effort to shake off the gloom of Joe's death, Jimmy invites everyone to have a drink on him. The men sing "Life in Mahagonny", describing how one could live in the city for only five dollars a day, but those who wanted to have fun always needed more. Jim, increasingly drunk, dreams of sailing back to Alaska. He takes down a curtain rod for a mast and climbs on the pool table, pretending it is a ship; Jenny and Billy play along. Jimmy is abruptly sobered up when Begbick demands payment for the whiskey as well as for the damage to her property. Totally broke, he turns in a panic to Jenny, who explains her refusal to help him out in the song "Make your own bed" – an adaptation of the ideas he proclaimed at the end of act 1. Jim is led off in chains as the chorus, singing another stanza of "Life in Mahagonny", returns to its pastimes. Trinity Moses assures the crowd that Jimmy will pay for his crimes with his life. Scene 17 At night, Jim alone and chained to a lamppost sings a plea for the sun not to rise on the day of his impending trial. Act 3 Scene 18: In the courtroom Moses, like a carnival barker, sells tickets to the trials. He serves as prosecutor, Fatty as defense attorney, Begbick as judge. First comes the case of Toby Higgins, accused of premeditated murder for the purpose of testing an old revolver. Fatty invites the injured party to rise, but no one does so, since the dead do not speak. Toby bribes all three, and as a result, Begbick dismisses the case. Next Jimmy's case is called. Chained, he is led in by Billy, from whom he tries to borrow money; Billy of course refuses, despite Jim's plea to remember their time together in Alaska. In virtually the same speech he used to attack Higgins, Moses excoriates him for not paying his bills, for seducing Jenny (who presents herself as a plaintiff) to commit a "carnal act" with him for money, and for inciting the crowd with "an illegal joyous song" on the night of the typhoon. Billy, with the chorus's support, counters that, in committing the latter act, Jimmy discovered the laws by which Mahagonny lives. Moses argues that Jim hastened his friend Joe's death in a prizefight by betting on him, and Billy counters by asking who actually killed Joe. Moses does not reply. But there is no answer for the main count against him. Jim gets short sentences for his lesser crimes, but for having no money, he is sentenced to death. Begbick, Fatty, and Moses, rising to identify themselves as the injured parties, proclaim "in the whole human race / there is no greater criminal / than a man without money". As Jim is led off to await execution, everyone sings the "Benares Song", in which they long for that exotic city "where the sun is shining." But Benares has been destroyed by an earthquake. "Where shall we go?" they ask. Scene 19: At the gallows Jim says a tender goodbye to Jenny, who, dressed in white, declares herself his widow. He surrenders her to Billy, his last remaining companion from Alaska. When he tries to delay the execution by reminding the people of Mahagonny that God exists, they play out for him, under Moses' direction, the story of "God in Mahagonny", in which the Almighty condemns the town and is overthrown by its citizens, who declare that they can not be sent to Hell because they are already in Hell. Jim, chastened, asks only for a glass of water, but is refused even this as Moses gives the signal for the trap to be sprung. Scene 20 A caption advises that, after Jim's death, increasing hostility among the city's various factions has caused the destruction of Mahagonny. To a potpourri of themes from earlier in the opera, groups of protesters are seen on the march, in conflict with one another, while the city burns in the background. Jenny and the whores carry Jim's clothing and accessories like sacred relics; Billy and several men carry his coffin. In a new theme, they and the others declare, "Nothing you can do will help a dead man". Begbick, Fatty, and Moses appear with placards of their own, joining the entire company in its march and declaring "Nothing will help him or us or you now," as the opera ends in chaos. Musical numbers Act 1 Scene 1: Gesucht werden Leokadja Begbick ("The Desired Progress of Leocadia Begbick") Scene 1: Sie soll sein wie ein Netz ("It Should Be Made Like a Net") Scene 2: Rasch wuchs ("Growing Up Quickly" ) / Moon of Alabama ("Oh, Show Us The Way...") Scene 3: Die Nachricht ("The News") Scene 4: In den nächsten Tagen ("In the Next Few Days") Scene 5: Damals kam unter Anderen ("Among the Crowd There Came") Scene 5: Heraus, ihr Schönen von Mahagonny ("Come Out, You Beauties of Mahagonny") Scene 5: Ach, bedenken Sie ("Oh Worries") Scene 6: Ich habe gelernt ("I Have Learned") Scene 7: Alle großen Unternehmungen ("All Great Things") Scene 7: Auch ich bin einmal ("Also I Was Once") Scene 8: Alle wahrhaft Suchenden ("All Seekers of the Truth") Scene 8: Aber etwas fehlt ("But Something is Missing") Scene 9: Das ist die ewige Kunst ("That is the Eternal Art") Scene 9: Sieben Jahre ("Seven Years!") Scene 10: Ein Taifun! ("A Typhoon!") Scene 11: In dieser Nacht des Entsetzens ("In This Night of Terror") Scene 11: Nein, jetzt sage ich ("No, I Say Do It Now") Scene 11: So tuet nur, was euch beliebt ("So, Just Do What You Like") Act 2 Scene 12: Hurrikan

Jeffrey Tate starring Marie McLaughlin as Jenny, Felicity Palmer (1995) and Kathryn Harries (1997) as Begbick, and Kim Begley (1995)/Peter Straka (1997) as Jimmy. The July 1998 Salzburg Festival production featured Catherine Malfitano as Jenny, Gwyneth Jones as Begbick, and Jerry Hadley as Jimmy. The Vienna State Opera added it to its repertoire in January 2012 in a production by Jérôme Deschamps conducted by Ingo Metzmacher starring Christopher Ventris as Jimmy and Angelika Kirchschlager as Jenny, notably casting young mezzo-soprano Elisabeth Kulman as Begbick, breaking the tradition of having a veteran soprano (like Varnay or Jones) or musical theater singer (like Patti LuPone) perform the role. Productions within the US have included those in November 1998 by the Lyric Opera of Chicago directed by David Alden. Catherine Malfitano repeated her role as Jenny, while Felicity Palmer sang Begbick, and Kim Begley sang the role of Jimmy. The Los Angeles Opera's February 2007 production directed by John Doyle and conducted by James Conlon included Audra McDonald as Jenny, Patti LuPone as Begbick, and Anthony Dean Griffey as Jimmy. This production was recorded on DVD, and subsequently won the 2009 Grammy Awards for "Best Classical Album" and "Best Opera Recording." In 2014 it was performed using an alternate libretto as a "wrestling opera" at the Oakland Metro by the performers of Hoodslam. A major new production had its world premiere in July 2019 at the Aix-en-Provence Festival in France conducted by Esa-Pekka Salonen with stage direction by Ivo van Hove. It is a co-production of Dutch National Opera, Metropolitan Opera, Opera Ballet Vlaanderen, and Les Theatres De La Ville De Luxembourg. It will be fully staged in New York and Amsterdam in future seasons. Roles Synopsis Act 1 Scene 1: A desolate no-man's land A truck breaks down. Three fugitives from justice get out and find themselves in the city of Mahagonny: Fatty the Bookkeeper, Trinity Moses, and Leocadia Begbick. Because the federal agents pursuing them will not search this far north, and they are in a good location to attract ships coming south from the Alaskan gold fields, Begbick decides that they can profit by staying where they are and founding a pleasure city, where men can have fun, because there is nothing else in the world to rely on. Scene 2 The news of Mahagonny spreads quickly, and sharks from all over flock to the bait, including the whore Jenny Smith, who is seen, with six other girls, singing the "Alabama Song", in which she waves goodbye to her home and sets out in pursuit of whiskey, dollars and pretty boys. Scene 3 In the big cities, where men lead boring, purposeless lives, Fatty and Moses spread the gospel of Mahagonny, city of gold, among the disillusioned. Scene 4 Four Alaskan Lumberjacks who have shared hard times together in the timberlands and made their fortunes set off together for Mahagonny. Jimmy Mahoney and his three friends – Jacob Schmidt, Bank Account Billy, and Alaska Wolf Joe – sing of the pleasures awaiting them in "Off to Mahagonny", and look forward to the peace and pleasure they will find there. Scene 5 The four friends arrive in Mahagonny, only to find other disappointed travelers already leaving. Begbick, well-informed about their personal tastes, marks down her prices, but for the penurious Billy, they still seem too high. Jimmy impatiently calls for the girls of Mahagonny to show themselves, so he can make a choice. Begbick suggests Jenny as the right girl for Jack, who finds her rates too high. She pleads with Jack to reconsider ("Havana Song"), which arouses Jim's interest, and he chooses her. Jenny and the girls sing a tribute to "the Jimmys from Alaska." Scene 6 Jimmy and Jenny get to know one another as she asks him to define the terms of their contact: Does he wish her to wear her hair up or down, to wear fancy underwear or none at all? "What is your wish?" asks Jim, but Jenny evades answering. Scene 7 Begbick, Fatty, and Moses meet to discuss the pleasure city's financial crisis: People are leaving in droves, and the price of whiskey is sinking rapidly. Begbick suggests going back to civilization, but Fatty reminds her that the federal agents have been inquiring for her in nearby Pensacola. Money would solve everything, declares Begbick, and she decides to soak the four new arrivals for all they've got. Scene 8 Jimmy, restless, attempts to leave Mahagonny because he misses the wife he left in Alaska. Scene 9 In front of the Rich Man's Hotel, Jimmy and the others sit lazily as a pianist plays Tekla Bądarzewska's "A Maiden's Prayer". With growing anger, Jimmy sings of how his hard work and suffering in Alaska have led only to this. Drawing a knife, he shouts for Begbick, while his friends try to disarm him and the other men call to have him thrown out. Calm again, he tells Begbick that Mahagonny can never make people happy: it has too much peace and quiet. Scene 10 As if in answer to Jimmy's complaint, the city is threatened by a hurricane. Everyone sings in horror of the destruction awaiting them. Scene 11 Tensely, people watch for the hurricane's arrival. The men sing a hymn-like admonition not to be afraid. Jim meditatively compares Nature's savagery to the far greater destructiveness of Man. Why do we build, he asks, if not for the pleasure of destroying? Since Man can outdo any hurricane, fear makes no sense. For the sake of human satisfaction, nothing should be forbidden: If you want another man's money, his house or his wife, knock him down and take it; do what you please. As Begbick and the men ponder Jimmy's philosophy, Fatty and Moses rush in with news: The hurricane has unexpectedly struck Pensacola, destroying Begbick's enemies, the federal agents. Begbick and her cohorts take it as a sign that Jimmy is right; they join him, Jenny, and his three friends in singing a new, defiant song: If someone walks over someone else, then it's me, and if someone gets walked on, then it's you. In the background, the men continue to chant their hymn as the hurricane draws nearer. Act 2 Scene 12 Magically, the hurricane bypasses Mahagonny, and the people sing in awe of their miraculous rescue. This confirms Begbick's belief in the philosophy of "Do what you want," and she proceeds to put it into effect. Scene 13 at the renovated "Do It" tavern. The men sing of the four pleasures of life: Eating, Lovemaking, Fighting, and Drinking. First comes eating: To kitschy cafe music, Jimmy's friend Jacob gorges until he keels over and dies. The men sing a chorale over his body, saluting "a man without fear". Scene 14: Loving. While Begbick collects money and issues tips on behavior, Moses placates the impatient men queuing to make love to Jenny and the other whores. The men sing the "Mandalay Song", warning that love does not last forever, and urging those ahead of them to make it snappy. Scene 15: Fighting. The men flock to see a boxing match between Trinity Moses and Jim's friend Alaska Wolf Joe. While most of the men, including the ever-cautious Billy, bet on the burly Moses, Jim, out of friendship, bets heavily on Joe. The match is

close friends and were sometimes sexual partners. In the 1920s Hopwood had a tumultuous and abusive romantic relationship with fellow Cleveland-born playwright John Floyd. Although Hopwood announced to the press in 1924 that he was engaged to vaudeville dancer and choreographer Rosa Rolanda, Van Vechten confirmed in later years that it was a publicity stunt. Rolanda would later marry caricaturist Miguel Covarrubias. On the evening of July 1, 1928, at Juan-les-Pins on the French Riviera, Hopwood suffered a fatal heart attack while swimming. He was buried in Riverside Cemetery, Cleveland. His mother, Jule Hopwood, inherited a large trust from him, but he had not made arrangements for the disposition of other items, including literary rights. While she was working through the legal issues with his estate, Jule Hopwood fell ill and died on March 1, 1929. She was buried next to her son. Legacy Hopwood's plays were very successful commercially, but they did not have the lasting literary significance he hoped to achieve. Hopwood Award The terms of Hopwood's will left a substantial portion of his estate to his alma mater, the University of Michigan, for the establishment of the Avery Hopwood and Jule Hopwood Creative Writing Awards. The bequest stipulated: "It is especially desired that students competing for prizes shall be allowed the widest possible latitude, and that the new, the unusual, and the radical shall be especially encouraged." Famous Hopwood award winners include Robert Hayden, Marge Piercy, Arthur Miller, Betty Smith, Lawrence Kasdan, John Ciardi, Mary Gaitskill, Edmund White, Nancy Willard, Frank O'Hara, and Steve Hamilton. The Great Bordello Throughout his life, Hopwood worked on a novel that he hoped would "expose" the strictures the commercial theater machine imposed on playwrights, but the manuscript was never published. Jack Sharrar recovered the manuscript for this novel in 1982 during his research for Avery Hopwood, His Life and Plays. The novel was published in July 2011 by Mondial Books (New York) as The Great Bordello, a Story of the Theatre. Works Clothes (1906) with Channing Pollock This Woman and This Man (1909) Seven Days (1909) with Mary Roberts Rinehart Judy Forgot (1910) Nobody's Widow (1910) Somewhere Else (1913) Fair and Warmer (1915) Remains popular in Germany (Der Mustergatte) and Scandinavia (Gröna hissen ) Sadie Love (1915) Our Little Wife (1916) Double Exposure (1918) Tumble In (1919, musical version of Seven Days) The Gold Diggers (1919) The Girl in the Limousine (1919) with Wilson Collison Ladies' Night (1920) with Charlton Andrews Spanish Love (1920, Adaptation of María del Carmen by Josep Feliu i Codina) with Mary Roberts Rinehart The Bat (1920) with Mary Roberts Rinehart Getting Gertie's Garter (1921) with Wilson Collison The Demi-Virgin (1921) Why Men Leave Home (1922) Little Miss Bluebeard (1923, Adaptation of Kisasszony férje by Gábor Drégely) The Alarm Clock (1923, Adaptation of La Sonnette d'alarme by Maurice Hennequin and Romain Coolus) The Best People (1924) with David Gray The Harem (1924) with Ernest Vajda Naughty Cinderella (1925, Adaptation of Pouche by René Peter and ) The Garden of Eden (1927, Adaptation of Der Garten Eden by Rudolf Bernauer and Rudolf Österreicher) Filmography Clothes (1914, based on Clothes) Judy Forgot (1915, based on Judy Forgot) Our Little Wife (1918, based on Our Little Wife) Sadie Love (1919, based on Sadie Love) Fair and Warmer (1919, based on Fair and Warmer) Guilty of Love (1920, based on This Woman and This Man) Clothes (1920, based on Clothes) The Little Clown (1921, based on The Little Clown) The Gold Diggers (1923, based on The Gold Diggers) Why Men Leave Home (1924, based on Why Men Leave

and in 1959 as The Bat); Getting Gertie's Garter (with Wilson Collison), 1921, starring Hazel Dawn (filmed in 1927 and 1945); The Demi-Virgin, 1921, also starring Dawn; The Alarm Clock, 1923; The Best People (with David Gray), 1924 (filmed in 1925 and as Fast and Loose in 1930 with Clara Bow); the song-farce Naughty Cinderella, 1925, starring Irene Bordoni and The Garden of Eden in 1927, with Tallulah Bankhead in London and Miriam Hopkins in New York; (filmed in 1928 as The Garden of Eden). Hopwood was asked to write the third act of Mary Roberts Rinehart's mystery play The Bat. He then collaborated with Rinehart on reworking the entire play at her home in Sewickley and sometimes in New York. The Bat scored 897 performances at the Morosco theater, NYC. The early sound film The Bat Whispers played an influence on Bob Kane's Batman because the inspiration for Batman's costume came from the "mysterious Bat" character portrayed in the movie from 1930. Personal life In 1906, Hopwood was introduced to writer and photographer Carl Van Vechten. The two became close friends and were sometimes sexual partners. In the 1920s Hopwood had a tumultuous and abusive romantic relationship with fellow Cleveland-born playwright John Floyd. Although Hopwood announced to the press in 1924 that he was engaged to vaudeville dancer and choreographer Rosa Rolanda, Van Vechten confirmed in later years that it was a publicity stunt. Rolanda would later marry caricaturist Miguel Covarrubias. On the evening of July 1, 1928, at Juan-les-Pins on the French Riviera, Hopwood suffered a fatal heart attack while swimming. He was buried in Riverside Cemetery, Cleveland. His mother, Jule Hopwood, inherited a large trust from him, but he had not made arrangements for the disposition of other items, including literary rights. While she was working through the legal issues with his estate, Jule Hopwood fell ill and died on March 1, 1929. She was buried next to her son. Legacy Hopwood's plays were very successful commercially, but they did not have the lasting literary significance he hoped to achieve. Hopwood Award The terms of Hopwood's will left a substantial portion of his estate to his alma mater, the University of Michigan, for the establishment of the Avery Hopwood and Jule Hopwood Creative Writing Awards. The bequest stipulated: "It is especially desired that students competing for prizes shall be allowed the widest possible latitude, and that the new, the unusual, and the radical shall be especially encouraged." Famous Hopwood award winners include Robert Hayden, Marge Piercy, Arthur Miller, Betty Smith, Lawrence Kasdan, John Ciardi, Mary Gaitskill, Edmund White, Nancy Willard, Frank O'Hara, and Steve Hamilton. The Great Bordello Throughout his life, Hopwood worked on a novel that he hoped would "expose" the strictures the commercial theater machine imposed on playwrights, but the manuscript was never published. Jack Sharrar recovered the manuscript for this novel in 1982 during his research for Avery Hopwood, His Life and Plays. The novel was published in July 2011 by Mondial Books (New York) as The Great Bordello, a Story of the Theatre. Works Clothes (1906) with Channing Pollock This Woman and This Man (1909) Seven Days (1909) with Mary Roberts Rinehart Judy Forgot (1910) Nobody's Widow (1910) Somewhere Else (1913) Fair and Warmer (1915) Remains popular in Germany (Der Mustergatte) and Scandinavia (Gröna hissen ) Sadie Love (1915) Our Little Wife (1916) Double Exposure (1918) Tumble In (1919, musical version of Seven Days) The Gold Diggers (1919) The Girl in the Limousine (1919) with Wilson Collison Ladies' Night (1920) with Charlton Andrews Spanish Love (1920, Adaptation of María del Carmen by Josep Feliu i Codina) with Mary Roberts Rinehart The Bat (1920) with Mary Roberts Rinehart Getting Gertie's Garter (1921) with Wilson Collison The Demi-Virgin (1921) Why Men Leave Home (1922) Little Miss Bluebeard (1923, Adaptation of Kisasszony férje by Gábor Drégely) The Alarm Clock (1923, Adaptation of La Sonnette d'alarme by Maurice Hennequin and Romain Coolus) The Best

to Porto (near Rome) where, after making an unsuccessful attempt to establish himself again in Rome, he died on 22 November AD 365. This Felix was later confused with a Roman martyr named Felix, with the result that he was included in lists of the Popes as Felix II and that the succeeding Popes of the same name (Pope Felix III and Pope Felix IV) were given wrong numerals, as was Antipope Felix V. The Catholic Encyclopedia (1909) called this confusion a "distortion of the true facts" and suggested that it arose because the "Liber Pontificalis" (which at this point may be registering a reliable tradition) says that this Felix built a church on the Via Aurelia, which is where the Roman martyr of an earlier date was buried. However, a more recent source says that of the martyr Felix nothing is known except his name, that he was a martyr, and that he was buried in the cemetery on the Via Portuensis that bears his name. The Catholic Encyclopedia remarked that "the real story of the antipope was lost and he obtained in local Roman history the status of a saint and a confessor. As such, he appears in the Roman Martyrology on 29 July." At that time (1909) the Roman Martyrology had the following text: This entry was based on what the Catholic Encyclopedia called later legends that confound the relative positions of Felix and Liberius. More recent editions of the Roman Martyrology have instead: The feast day of the Roman

text: This entry was based on what the Catholic Encyclopedia called later legends that confound the relative positions of Felix and Liberius. More recent editions of the Roman Martyrology have instead: The feast day of the Roman martyr Felix is 29 July. The antipope Felix died, as stated above, on a 22 November, and his death was not a martyr's, occurring when the Peace of Constantine had been in force for half a century. As well as the Roman Martyrology, the Roman Missal identified the Saint Felix of 29 July with the antipope. This identification, still found in the 1920 typical edition, does not appear in the 1962 typical edition. To judge by the Marietti printing of 1952, which omits the numeral "II" and the word "Papae", the correction had already been made by then. One Catholic writer excuses this by saying that the antipope "himself did refuse to accept Arianism, and so his feast has been kept in the past on [29 July]". See also Papal selection before 1059 References External links The Papal Schism between Liberius and Felix (a primary source) Encyclopædia Britannica: Felix (II) Felix II Felix II 4th-century antipopes 4th-century Christian clergy Felix II Ancient Christians involved

acids. This group includes terpene-like and steroid-like alkaloids, as well as purine-like alkaloids such as caffeine, theobromine, theacrine and theophylline. Some authors classify as pseudoalkaloids such compounds such as ephedrine and cathinone. Those originate from the amino acid phenylalanine, but acquire their nitrogen atom not from the amino acid but through transamination.Dewick, p. 382 Some alkaloids do not have the carbon skeleton characteristic of their group. So, galanthamine and homoaporphines do not contain isoquinoline fragment, but are, in general, attributed to isoquinoline alkaloids. Main classes of monomeric alkaloids are listed in the table below: Properties Most alkaloids contain oxygen in their molecular structure; those compounds are usually colorless crystals at ambient conditions. Oxygen-free alkaloids, such as nicotine or coniine, are typically volatile, colorless, oily liquids. Some alkaloids are colored, like berberine (yellow) and sanguinarine (orange). Most alkaloids are weak bases, but some, such as theobromine and theophylline, are amphoteric. Many alkaloids dissolve poorly in water but readily dissolve in organic solvents, such as diethyl ether, chloroform or 1,2-dichloroethane. Caffeine, cocaine, codeine and nicotine are slightly soluble in water (with a solubility of ≥1g/L), whereas others, including morphine and yohimbine are very slightly water-soluble (0.1–1 g/L). Alkaloids and acids form salts of various strengths. These salts are usually freely soluble in water and ethanol and poorly soluble in most organic solvents. Exceptions include scopolamine hydrobromide, which is soluble in organic solvents, and the water-soluble quinine sulfate. Most alkaloids have a bitter taste or are poisonous when ingested. Alkaloid production in plants appeared to have evolved in response to feeding by herbivorous animals; however, some animals have evolved the ability to detoxify alkaloids. Some alkaloids can produce developmental defects in the offspring of animals that consume but cannot detoxify the alkaloids. One example is the alkaloid cyclopamine, produced in the leaves of corn lily. During the 1950s, up to 25% of lambs born by sheep that had grazed on corn lily had serious facial deformations. These ranged from deformed jaws to cyclopia (see picture). After decades of research, in the 1980s, the compound responsible for these deformities was identified as the alkaloid 11-deoxyjervine, later renamed to cyclopamine. Distribution in nature Alkaloids are generated by various living organisms, especially by higher plants – about 10 to 25% of those contain alkaloids.Orekhov, p. 11 Therefore, in the past the term "alkaloid" was associated with plants. The alkaloids content in plants is usually within a few percent and is inhomogeneous over the plant tissues. Depending on the type of plants, the maximum concentration is observed in the leaves (for example, black henbane), fruits or seeds (Strychnine tree), root (Rauvolfia serpentina) or bark (cinchona). Furthermore, different tissues of the same plants may contain different alkaloids. Beside plants, alkaloids are found in certain types of fungi, such as psilocybin in the fungus of the genus Psilocybe, and in animals, such as bufotenin in the skin of some toads and a number of insects, markedly ants. Many marine organisms also contain alkaloids. Some amines, such as adrenaline and serotonin, which play an important role in higher animals, are similar to alkaloids in their structure and biosynthesis and are sometimes called alkaloids. Extraction Because of the structural diversity of alkaloids, there is no single method of their extraction from natural raw materials. Most methods exploit the property of most alkaloids to be soluble in organic solvents but not in water, and the opposite tendency of their salts. Most plants contain several alkaloids. Their mixture is extracted first and then individual alkaloids are separated. Plants are thoroughly ground before extraction.Grinkevich, p. 5 Most alkaloids are present in the raw plants in the form of salts of organic acids. The extracted alkaloids may remain salts or change into bases. Base extraction is achieved by processing the raw material with alkaline solutions and extracting the alkaloid bases with organic solvents, such as 1,2-dichloroethane, chloroform, diethyl ether or benzene. Then, the impurities are dissolved by weak acids; this converts alkaloid bases into salts that are washed away with water. If necessary, an aqueous solution of alkaloid salts is again made alkaline and treated with an organic solvent. The process is repeated until the desired purity is achieved. In the acidic extraction, the raw plant material is processed by a weak acidic solution (e.g., acetic acid in water, ethanol, or methanol). A base is then added to convert alkaloids to basic forms that are extracted with organic solvent (if the extraction was performed with alcohol, it is removed first, and the remainder is dissolved in water). The solution is purified as described above.Grinkevich, pp. 132–134 Alkaloids are separated from their mixture using their different solubility in certain solvents and different reactivity with certain reagents or by distillation. A number of alkaloids are identified from insects, among which the fire ant venom alkaloids known as solenopsins have received greater attention from researchers. These insect alkaloids can be efficiently extracted by solvent immersion of live fire ants or by centrifugation of live ants followed by silica-gel chromatography purification. Tracking and dosing the extracted solenopsin ant alkaloids has been described as possible based on their absorbance peak around 232 nanometers. Biosynthesis Biological precursors of most alkaloids are amino acids, such as ornithine, lysine, phenylalanine, tyrosine, tryptophan, histidine, aspartic acid, and anthranilic acid. Nicotinic acid can be synthesized from tryptophan or aspartic acid. Ways of alkaloid biosynthesis are too numerous and cannot be easily classified. However, there are a few typical reactions involved in the biosynthesis of various classes of alkaloids, including synthesis of Schiff bases and Mannich reaction. Synthesis of Schiff bases Schiff bases can be obtained by reacting amines with ketones or aldehydes. These reactions are a common method of producing C=N bonds. In the biosynthesis of alkaloids, such reactions may take place within a molecule, such as in the synthesis of piperidine: Mannich reaction An integral component of the Mannich reaction, in addition to an amine and a carbonyl compound, is a carbanion, which plays the role of the nucleophile in the nucleophilic addition to the ion formed by the reaction of the amine and the carbonyl.

alkaloids contain oxygen in their molecular structure; those compounds are usually colorless crystals at ambient conditions. Oxygen-free alkaloids, such as nicotine or coniine, are typically volatile, colorless, oily liquids. Some alkaloids are colored, like berberine (yellow) and sanguinarine (orange). Most alkaloids are weak bases, but some, such as theobromine and theophylline, are amphoteric. Many alkaloids dissolve poorly in water but readily dissolve in organic solvents, such as diethyl ether, chloroform or 1,2-dichloroethane. Caffeine, cocaine, codeine and nicotine are slightly soluble in water (with a solubility of ≥1g/L), whereas others, including morphine and yohimbine are very slightly water-soluble (0.1–1 g/L). Alkaloids and acids form salts of various strengths. These salts are usually freely soluble in water and ethanol and poorly soluble in most organic solvents. Exceptions include scopolamine hydrobromide, which is soluble in organic solvents, and the water-soluble quinine sulfate. Most alkaloids have a bitter taste or are poisonous when ingested. Alkaloid production in plants appeared to have evolved in response to feeding by herbivorous animals; however, some animals have evolved the ability to detoxify alkaloids. Some alkaloids can produce developmental defects in the offspring of animals that consume but cannot detoxify the alkaloids. One example is the alkaloid cyclopamine, produced in the leaves of corn lily. During the 1950s, up to 25% of lambs born by sheep that had grazed on corn lily had serious facial deformations. These ranged from deformed jaws to cyclopia (see picture). After decades of research, in the 1980s, the compound responsible for these deformities was identified as the alkaloid 11-deoxyjervine, later renamed to cyclopamine. Distribution in nature Alkaloids are generated by various living organisms, especially by higher plants – about 10 to 25% of those contain alkaloids.Orekhov, p. 11 Therefore, in the past the term "alkaloid" was associated with plants. The alkaloids content in plants is usually within a few percent and is inhomogeneous over the plant tissues. Depending on the type of plants, the maximum concentration is observed in the leaves (for example, black henbane), fruits or seeds (Strychnine tree), root (Rauvolfia serpentina) or bark (cinchona). Furthermore, different tissues of the same plants may contain different alkaloids. Beside plants, alkaloids are found in certain types of fungi, such as psilocybin in the fungus of the genus Psilocybe, and in animals, such as bufotenin in the skin of some toads and a number of insects, markedly ants. Many marine organisms also contain alkaloids. Some amines, such as adrenaline and serotonin, which play an important role in higher animals, are similar to alkaloids in their structure and biosynthesis and are sometimes called alkaloids. Extraction Because of the structural diversity of alkaloids, there is no single method of their extraction from natural raw materials. Most methods exploit the property of most alkaloids to be soluble in organic solvents but not in water, and the opposite tendency of their salts. Most plants contain several alkaloids. Their mixture is extracted first and then individual alkaloids are separated. Plants are thoroughly ground before extraction.Grinkevich, p. 5 Most alkaloids are present in the raw plants in the form of salts of organic acids. The extracted alkaloids may remain salts or change into bases. Base extraction is achieved by processing the raw material with alkaline solutions and extracting the alkaloid bases with organic solvents, such as 1,2-dichloroethane, chloroform, diethyl ether or benzene. Then, the impurities are dissolved by weak acids; this converts alkaloid bases into salts that are washed away with water. If necessary, an aqueous solution of alkaloid salts is again made alkaline and treated with an organic solvent. The process is repeated until the desired purity is achieved. In the acidic extraction, the raw plant material is processed by a weak acidic solution (e.g., acetic acid in water, ethanol, or methanol). A base is then added to convert alkaloids to basic forms that are extracted with organic solvent (if the extraction was performed with alcohol, it is removed first, and the remainder is dissolved in water). The solution is purified as described above.Grinkevich, pp. 132–134 Alkaloids are separated from their mixture using their different solubility in certain solvents and different reactivity with certain reagents or by distillation. A number of alkaloids are identified from insects, among which the fire ant venom alkaloids known as solenopsins have received greater attention from researchers. These insect alkaloids can be efficiently extracted by solvent immersion of live fire ants or by centrifugation of live ants followed by silica-gel chromatography purification. Tracking and dosing the extracted solenopsin ant alkaloids has been described as possible based on their absorbance peak around 232 nanometers. Biosynthesis Biological precursors of most alkaloids are amino acids, such as ornithine, lysine, phenylalanine, tyrosine, tryptophan, histidine, aspartic acid, and anthranilic acid. Nicotinic acid can be synthesized from tryptophan or aspartic acid. Ways of alkaloid biosynthesis are too numerous and cannot be easily classified. However, there are a few typical reactions involved in the biosynthesis of various classes of alkaloids, including synthesis of Schiff bases and Mannich reaction. Synthesis of Schiff bases Schiff bases can be obtained by reacting amines with ketones or aldehydes. These reactions are a common method of producing C=N bonds. In the biosynthesis of alkaloids, such reactions may take place within a molecule, such as in the synthesis of piperidine: Mannich reaction An integral component of the Mannich reaction, in addition to an amine and a carbonyl compound, is a carbanion, which plays the role of the nucleophile in

that Jesus had come not literally but "spiritually", and consequently were known as "spiritualizers". A small minority held that something concrete had indeed happened on October 22, but that this event had been misinterpreted. This belief later emerged and crystallized with the Seventh-day Adventist Church, the largest remaining body today. Albany Conference (1845) The Albany Conference in 1845, attended by 61 delegates, was called to attempt to determine the future course and meaning of the Millerite movement. Following this meeting, the "Millerites" then became known as "Adventists" or "Second Adventists". However, the delegates disagreed on several theological points. Four groups emerged from the conference: The Evangelical Adventists, The Life and Advent Union, the Advent Christian Church, and the Seventh-day Adventist Church. The largest group was organized as the American Millennial Association, a portion of which was later known as the Evangelical Adventist Church. Unique among the Adventists, they believed in an eternal hell and consciousness in death. They declined in numbers, and by 1916 their name did not appear in the United States Census of Religious Bodies. It has diminished to almost non-existence today. Their main publication was the Advent Herald, of which Sylvester Bliss was the editor until his death in 1863. It was later called the Messiah's Herald. The Life and Advent Union was founded by George Storrs in 1863. He had established The Bible Examiner in 1842. It merged with the Adventist Christian Church in 1964. The Advent Christian Church officially formed in 1861 and grew rapidly at first. It declined a little during the 20th century. The Advent Christians publish the four magazines The Advent Christian Witness, Advent Christian News, Advent Christian Missions and Maranatha. They also operate a liberal arts college at Aurora, Illinois; and a one-year Bible College in Lenox, Massachusetts, called Berkshire Institute for Christian Studies. The Primitive Advent Christian Church later separated from a few congregations in West Virginia. The Seventh-day Adventist Church officially formed in 1863. It believes in the sanctity of the seventh-day Sabbath as a holy day for worship. It publishes the Adventist Review, which evolved from several early church publications. Youth publications include KidsView, Guide and Insight. It has grown to a large worldwide denomination and has a significant network of medical and educational institutions. Miller did not join any of the movements, and he spent the last few years of his life working for unity, before dying in 1849. Denominations The Handbook of Denominations in the United States, 12th ed., describes the following churches as "Adventist and Sabbatarian (Hebraic) Churches": Christadelphians The Christadelphians were founded in 1844 by John Thomas and had an estimated 25,000 members in 170 ecclesias, or churches, in 2000 in America. Advent Christian Church The Advent Christian Church was founded in 1860 and had 25,277 members in 302 churches in 2002 in America. It is a "first-day" body of Adventist Christians founded on the teachings of William Miller. It adopted the "conditional immortality" doctrine of Charles F. Hudson and George Storrs, who formed the "Advent Christian Association" in Salem, Massachusetts, in 1860. Primitive Advent Christian Church The Primitive Advent Christian Church is a small group which separated from the Advent Christian Church. It differs from the parent body mainly on two points. Its members observe foot washing as a rite of the church, and they teach that reclaimed backsliders should be baptized (even though they had formerly been baptized). This is sometimes referred to as rebaptism. Seventh-day Adventist Church The Seventh-day Adventist Church, founded in 1863, had over 19,500,000 baptized members (not counting children of members) worldwide as of June 2016. It is best known for its teaching that Saturday, the seventh day of the week, is the Sabbath and is the appropriate day for worship. However, the second coming of Jesus Christ along with the Judgement day based on the three angels message in Revelation 14:6–13 remain core beliefs of Seventh-day Adventists. Seventh Day Adventist Reform Movement The Seventh Day Adventist Reform Movement is a small offshoot with an unknown number of members from the Seventh-day Adventist Church caused by disagreement over military service on the Sabbath day during World War I. Davidian Seventh-day Adventist Association The Davidians (originally

holy day for worship. It publishes the Adventist Review, which evolved from several early church publications. Youth publications include KidsView, Guide and Insight. It has grown to a large worldwide denomination and has a significant network of medical and educational institutions. Miller did not join any of the movements, and he spent the last few years of his life working for unity, before dying in 1849. Denominations The Handbook of Denominations in the United States, 12th ed., describes the following churches as "Adventist and Sabbatarian (Hebraic) Churches": Christadelphians The Christadelphians were founded in 1844 by John Thomas and had an estimated 25,000 members in 170 ecclesias, or churches, in 2000 in America. Advent Christian Church The Advent Christian Church was founded in 1860 and had 25,277 members in 302 churches in 2002 in America. It is a "first-day" body of Adventist Christians founded on the teachings of William Miller. It adopted the "conditional immortality" doctrine of Charles F. Hudson and George Storrs, who formed the "Advent Christian Association" in Salem, Massachusetts, in 1860. Primitive Advent Christian Church The Primitive Advent Christian Church is a small group which separated from the Advent Christian Church. It differs from the parent body mainly on two points. Its members observe foot washing as a rite of the church, and they teach that reclaimed backsliders should be baptized (even though they had formerly been baptized). This is sometimes referred to as rebaptism. Seventh-day Adventist Church The Seventh-day Adventist Church, founded in 1863, had over 19,500,000 baptized members (not counting children of members) worldwide as of June 2016. It is best known for its teaching that Saturday, the seventh day of the week, is the Sabbath and is the appropriate day for worship. However, the second coming of Jesus Christ along with the Judgement day based on the three angels message in Revelation 14:6–13 remain core beliefs of Seventh-day Adventists. Seventh Day Adventist Reform Movement The Seventh Day Adventist Reform Movement is a small offshoot with an unknown number of members from the Seventh-day Adventist Church caused by disagreement over military service on the Sabbath day during World War I. Davidian Seventh-day Adventist Association The Davidians (originally named Shepherd's Rod) is a small offshoot with an unknown number of members made up primarily of voluntarily disfellowshipped members of the Seventh-day Adventist Church. They were originally known as the Shepherd's Rod and are still sometimes referred to as such. The group derives its name from two books on Bible doctrine written by its founder, Victor Houteff, in 1929. Branch Davidians The Branch Davidians were a split ("branch") from the Davidians. A group that gathered around David Koresh (the so-called Koreshians) abandoned Davidian teachings and turned into a religious cult. Many of them were killed during the infamous Waco Siege of April 1993. Church of God (Seventh Day) The Church of God (Seventh-Day) was founded in 1863 and it had an estimated 11,000 members in 185 churches in 1999 in America. Its founding members separated in 1858 from those Adventists associated with Ellen G. White who later organized themselves as Seventh-day Adventists in 1863. The Church of God (Seventh Day) split in 1933, creating two bodies: one headquartered in Salem, West Virginia, and known as the Church of God (7th day) – Salem Conference and the other one headquartered in Denver, Colorado and known as the General Conference of the Church of God (Seventh-Day). The Worldwide Church of God splintered from this. Church of God General Conference Many denominations known as "Church of God" have Adventist origins. The Church of God General Conference was founded in 1921 and had 7,634 members in 162 churches in 2004 in America. It is a first-day Adventist Christian body which is also known as the Church of God of the Abrahamic Faith and the Church of God General Conference (Morrow, GA). Creation Seventh-Day Adventist Church The Creation Seventh-Day Adventist Church is a small group that broke off from the Seventh-Day Adventists in 1988, and

in the London Borough of Lambeth. He also has lodgings in the Old Palace, Canterbury, located beside Canterbury Cathedral, where the Chair of St Augustine sits. As holder of one of the "five great sees" (the others being York, London, Durham and Winchester), the archbishop of Canterbury is ex officio one of the Lords Spiritual of the House of Lords. He is one of the highest-ranking men in England and the highest ranking non-royal in the United Kingdom's order of precedence. Since Henry VIII broke with Rome, the archbishops of Canterbury have been selected by the English (British since the Act of Union in 1707) monarch. Since the 20th century, the appointment of Archbishops of Canterbury conventionally alternates between Anglo-Catholics and Evangelicals. The current archbishop, Justin Welby, the 105th archbishop of Canterbury, was enthroned at Canterbury Cathedral on 4 February 2013. As archbishop he signs himself as + Justin Cantuar. His predecessor, Rowan Williams, 104th Archbishop of Canterbury, was enthroned at Canterbury Cathedral on 27 February 2003. Immediately prior to his appointment to Canterbury, Williams was the bishop of Monmouth and archbishop of Wales. On 18 March 2012, Williams announced he would be stepping down as archbishop of Canterbury at the end of 2012 to become master of Magdalene College, Cambridge. Additional roles In addition to his office, the archbishop also holds a number of other positions; for example, he is joint president of the Council of Christians and Jews in the United Kingdom. Some positions he formally holds ex officio and others virtually so (the incumbent of the day, although appointed personally, is appointed because of his office). Amongst these are: Chancellor of Canterbury Christ Church University Visitor for the following academic institutions: All Souls College, Oxford Selwyn College, Cambridge Merton College, Oxford Keble College, Oxford Ridley Hall, Cambridge The University of Kent (main campus located in Canterbury) King's College London University of King's College Sutton Valence School Benenden School Cranbrook School Haileybury and Imperial Service College Harrow School King's College School, Wimbledon The King's School, Canterbury St John's School, Leatherhead Marlborough College Dauntsey's School Wycliffe Hall, Oxford (also Patron) Governor of Charterhouse School Governor of Wellington College Visitor, The Dulwich Charities Visitor, Whitgift Foundation Visitor, Hospital of the Blessed Trinity, Guildford (Abbot's Fund) Trustee, Bromley College Trustee, Allchurches Trust President, Corporation of Church House, Westminster Director, Canterbury Diocesan Board of Finance Patron, St Edmund's School Canterbury Patron, The Worshipful Company of Parish Clerks Patron, Prisoners Abroad Patron, The Kent Savers Credit Union Patron, Sanctuary Mental Health Ministries Ecumenical and interfaith The archbishop is also a president of Churches Together in England (an ecumenical organisation). Geoffrey Fisher, 99th Archbishop of Canterbury, was the first since 1397 to visit Rome, where he held private talks with Pope John XXIII in 1960. In 2005, Rowan Williams became the first archbishop of Canterbury to attend a papal funeral since the Reformation. He also attended the inauguration of Pope Benedict XVI. The 101st archbishop, Donald Coggan, was the first to attend a papal inauguration, that of Pope John Paul II in 1978. Since 2002, the archbishop has co-sponsored the Alexandria Middle East Peace process with the Grand Mufti of Egypt. In July 2008, the archbishop attended a conference of Christians, Jews and Muslims convened by the king of Saudi Arabia at which the notion of the "clash of civilizations" was rejected. Delegates agreed "on international guidelines for dialogue among the followers of religions and cultures." Delegates said that "the deepening of moral values and ethical principles, which are common denominators among such followers, would help strengthen stability and achieve prosperity for all humans." Origins It has been suggested that the Roman province of Britannia had four archbishops, seated at Londinium (London), Eboracum (York), Lindum Colonia (Lincoln) and Corinium Dobunnorum (Cirencester). However, in the 5th and 6th centuries Britannia began to be overrun by pagan, Germanic peoples who came to be known collectively as the Anglo-Saxons. Of the kingdoms they created, Kent arguably had the closest links with European politics, trade and culture, because it was conveniently situated for communication with continental Europe. In the late 6th century, King Æthelberht of Kent married a Christian Frankish princess named Bertha, possibly before becoming king, and certainly a number of years before the arrival of the first Christian mission to England. He permitted the preaching

archbishop, although without legal authority outside England, is recognised by convention as primus inter pares ("first among equals") of all Anglican primates worldwide. Since 1867 he has convened more or less decennial meetings of worldwide Anglican bishops, the Lambeth Conferences. In the last two of these functions, he has an important ecumenical and interfaith role, speaking on behalf of Anglicans in England and worldwide. The archbishop's main residence is Lambeth Palace in the London Borough of Lambeth. He also has lodgings in the Old Palace, Canterbury, located beside Canterbury Cathedral, where the Chair of St Augustine sits. As holder of one of the "five great sees" (the others being York, London, Durham and Winchester), the archbishop of Canterbury is ex officio one of the Lords Spiritual of the House of Lords. He is one of the highest-ranking men in England and the highest ranking non-royal in the United Kingdom's order of precedence. Since Henry VIII broke with Rome, the archbishops of Canterbury have been selected by the English (British since the Act of Union in 1707) monarch. Since the 20th century, the appointment of Archbishops of Canterbury conventionally alternates between Anglo-Catholics and Evangelicals. The current archbishop, Justin Welby, the 105th archbishop of Canterbury, was enthroned at Canterbury Cathedral on 4 February 2013. As archbishop he signs himself as + Justin Cantuar. His predecessor, Rowan Williams, 104th Archbishop of Canterbury, was enthroned at Canterbury Cathedral on 27 February 2003. Immediately prior to his appointment to Canterbury, Williams was the bishop of Monmouth and archbishop of Wales. On 18 March 2012, Williams announced he would be stepping down as archbishop of Canterbury at the end of 2012 to become master of Magdalene College, Cambridge. Additional roles In addition to his office, the archbishop also holds a number of other positions; for example, he is joint president of the Council of Christians and Jews in the United Kingdom. Some positions he formally holds ex officio and others virtually so (the incumbent of the day, although appointed personally, is appointed because of his office). Amongst these are: Chancellor of Canterbury Christ Church University Visitor for the following academic institutions: All Souls College, Oxford Selwyn College, Cambridge Merton College, Oxford Keble College, Oxford Ridley Hall, Cambridge The University of Kent (main campus located in Canterbury) King's College London University of King's College Sutton Valence School Benenden School Cranbrook School Haileybury and Imperial Service College Harrow School King's College School, Wimbledon The King's School, Canterbury St John's School, Leatherhead Marlborough College Dauntsey's School Wycliffe Hall, Oxford (also Patron) Governor of Charterhouse School Governor of Wellington College Visitor, The Dulwich Charities Visitor, Whitgift Foundation Visitor, Hospital of the Blessed Trinity, Guildford (Abbot's Fund) Trustee, Bromley College Trustee, Allchurches Trust President, Corporation of Church House, Westminster Director, Canterbury Diocesan Board of Finance Patron, St Edmund's School Canterbury Patron, The Worshipful Company of Parish Clerks Patron, Prisoners Abroad Patron, The Kent Savers Credit Union Patron, Sanctuary Mental Health Ministries Ecumenical and interfaith The archbishop is also a president of Churches Together in England (an ecumenical organisation). Geoffrey Fisher, 99th Archbishop of Canterbury, was the first since 1397 to visit Rome, where he held private talks with Pope John XXIII in 1960. In 2005, Rowan Williams became the first archbishop of Canterbury to attend a papal funeral since the Reformation. He also attended the inauguration of Pope Benedict XVI. The 101st archbishop, Donald Coggan, was the first to attend a papal inauguration, that of Pope John Paul II in 1978. Since 2002, the archbishop has co-sponsored the Alexandria Middle East Peace process with the Grand Mufti of Egypt. In July 2008, the archbishop attended a conference of Christians, Jews and Muslims convened by the king of Saudi Arabia at which the notion of the "clash of civilizations" was rejected. Delegates agreed "on international guidelines for dialogue among the followers of religions and cultures." Delegates said that "the deepening of moral values and ethical principles, which are common denominators among such followers, would help strengthen stability and achieve prosperity for all humans." Origins It has been suggested that the Roman province of Britannia had four archbishops, seated at Londinium (London), Eboracum (York), Lindum Colonia (Lincoln) and Corinium Dobunnorum (Cirencester). However, in the 5th and 6th centuries Britannia began to be overrun by pagan, Germanic peoples who came to be known collectively as the Anglo-Saxons. Of the kingdoms they created, Kent arguably had the closest links with European politics, trade and culture, because it was conveniently situated for communication with continental Europe. In the late 6th century, King Æthelberht of Kent married a Christian Frankish princess named Bertha, possibly before becoming king, and certainly a number of years before the arrival of the first Christian mission to England. He permitted the preaching of Christianity. The first archbishop of Canterbury was Saint Augustine of Canterbury (not to be confused with Saint Augustine of Hippo), who arrived in Kent in 597 AD, having been sent by Pope Gregory I on a mission to the English. He was accepted by King Æthelbert, on his conversion to Christianity, about the year 598. It seems that Pope Gregory, ignorant of recent developments in the former Roman province, including the spread of the Pelagian heresy, had intended the new archiepiscopal sees for England to be established in London and York. In the event, Canterbury was chosen instead of London, owing to political circumstances. Since then the Archbishops

few other names before 1861. It was then fully authorized to confer four-year degrees on both men and women. The first classes were held in Albion in 1843. The forks of the Kalamazoo River provided power for mills, and Albion quickly became a mill town as well as an agricultural market. A railroad line arrived in 1852, fostering the development of other industries. In 1973 Albion was named an All-America City by the National Civic League. It celebrated winning the award on May 15, 1974, when the Governor of Michigan, William Milliken, and many dignitaries came to town. In 1975 the closure of a major factory began a difficult period of industrial restructuring and decline in jobs and population. Since that time citizens have mobilized, founding the Albion Community Foundation in 1968, and the Albion Volunteer Service Organization in the 1980s, with support from Albion College, to address the challenge of diminishing economic opportunity. Key to the City Honor Bestowed: 1964: Aunt Jemima visited Albion on January 25. 1960s: Ann Landers was presented with a key upon her visit to Starr Commonwealth for Boys. Law and government Albion has a Council-Manager form of government. City residents elect a Mayor at-large and City Council members from each of six single-member districts. The council in turn selects a City Manager to handle day-to-day affairs of the city. The mayor presides over and is a voting member of the council. Council members are elected to four-year terms, staggered every two years. A mayor is elected every two years. The city levies an income tax of 1 percent on residents and 0.5 percent on nonresidents. Geography According to the United States Census Bureau, the city has a total area of , of which is land and is water. Albion is positioned 42.24 degrees north of the equator and 84.75 degrees west of the prime meridian. Climate Demographics 2010 population by gender/age 2010 population by ethnicity 2010 population by race Transportation Major highways

the 19th century, several major manufacturers gave Albion the reputation of a factory town. This has changed with the closure of several manufacturers. In the 21st century, Albion's culture is changing to that of a college town whose residents have a strong interest in technology and sustainability issues. Albion College is a private liberal arts college with a student population of about 1,250. Albion is a sister city with Noisy-le-Roi, France. History The first European-American settler, Tenney Peabody, arrived in 1833 along with his brother-in-law Charles Blanchard, and another young man named Clark Dowling. Peabody's family followed soon after. In 1835, the Albion Company, a land development company formed by Jesse Crowell, platted a village. Peabody's wife was asked to name the settlement. She considered the name "Peabodyville", but "Albion" was selected instead, after the former residence of Jesse Crowell. Crowell was appointed in 1838 as the first US postmaster here. . Albion incorporated as a village in 1855 and as a city in 1885. In 1835, Methodist settlers established Albion College, which was known by a few other names before 1861. It was then fully authorized to confer four-year degrees on both men and women. The first classes were held in Albion in 1843. The forks of the Kalamazoo River provided power for mills, and Albion quickly became a mill town as well as an agricultural market. A railroad line arrived in 1852, fostering the development of other industries. In 1973 Albion was named an All-America City by the National Civic League. It celebrated winning the award on May 15, 1974, when the Governor of Michigan, William Milliken, and many dignitaries came to town. In 1975 the closure of a major factory began a difficult period of industrial restructuring and decline in jobs and population. Since that time citizens have mobilized, founding the Albion Community Foundation in 1968, and the Albion Volunteer Service Organization in the 1980s, with support from Albion College, to address the challenge of diminishing economic opportunity. Key to the City Honor Bestowed: 1964: Aunt Jemima visited Albion on January 25. 1960s: Ann Landers was presented with a key upon her visit to Starr Commonwealth for Boys. Law and government Albion has a Council-Manager form of government. City residents elect a Mayor at-large and City Council members from each of six single-member districts. The council in turn selects a City Manager to handle

"Unction of the Sick" or the term "Extreme Unction". Cardinal Walter Kasper used the latter term in his intervention at the 2005 Assembly of the Synod of Bishops. However, the Church declared that "'Extreme unction' ... may also and more fittingly be called 'anointing of the sick'", and has itself adopted the latter term, while not outlawing the former. This is to emphasize that the sacrament is available, and recommended, to all those suffering from any serious illness, and to dispel the common misconception that it is exclusively for those at or very near the point of death. Extreme Unction was the usual name for the sacrament in the West from the late twelfth century until 1972, and was thus used at the Council of Trent and in the 1913 Catholic Encyclopedia. Peter Lombard (died 1160) is the first writer known to have used the term, which did not become the usual name in the West till towards the end of the twelfth century, and never became current in the East. The word "extreme" (final) indicated either that it was the last of the sacramental unctions (after the anointings at Baptism, Confirmation and, if received, Holy Orders) or because at that time it was normally administered only when a patient was in extremis. Other names used in the West include the unction or blessing of consecrated oil, the unction of God, and the office of the unction. Among some Protestant bodies, who do not consider it a sacrament, but instead as a practice suggested rather than commanded by Scripture, it is called anointing with oil. In the Greek Church the sacrament is called Euchelaion (Greek Εὐχέλαιον, from εὐχή, "prayer", and ἔλαιον, "oil"). Other names are also used, such as ἅγιον ἔλαιον (holy oil), ἡγιασμένον ἔλαιον (consecrated oil), and χρῖσις or χρῖσμα (anointing). The Community of Christ uses the term administration to the sick. The term "last rites" refers to administration to a dying person not only of this sacrament but also of Penance and Holy Communion, the last of which, when administered in such circumstances, is known as "Viaticum", a word whose original meaning in Latin was "provision for the journey". The normal order of administration is: first Penance (if the dying person is physically unable to confess, absolution, conditional on the existence of contrition, is given); next, Anointing; finally, Viaticum (if the person can receive it). Biblical texts The chief biblical text concerning the rite is James 5:14–15: "Is any among you sick? Let him call for the elders of the church, and let them pray over him, anointing him with oil in the name of the Lord; and the prayer of faith will save the sick man, and the Lord will raise him up; and if he has committed sins, he will be forgiven" (RSV). Matthew 10:8, Luke 10:8–9 and Mark 6:13 are also quoted in this context. Sacramental beliefs The Catholic, Eastern Orthodox and Coptic and Old Catholic Churches consider this anointing to be a sacrament. Other Christians too, in particular, Lutherans, Anglicans and some Protestant and other Christian communities use a rite of anointing the sick, without necessarily classifying it as a sacrament. In the Churches mentioned here by name, the oil used (called "oil of the sick" in both West and East) is blessed specifically for this purpose. Roman Catholic Church An extensive account of the teaching of the Catholic Church on Anointing of the Sick is given in Catechism of the Catholic Church. Anointing of the Sick is one of the seven Sacraments recognized by the Catholic Church, and is associated with not only bodily healing but also forgiveness of sins. Only ordained priests can administer it, and "any priest may carry the holy oil with him, so that in a case of necessity he can administer the sacrament of anointing of the sick." Sacramental graces The Catholic Church sees the effects of the sacrament as follows. As the sacrament of Marriage gives grace for the married state, the sacrament of Anointing of the Sick gives grace for the state into which people enter through sickness. Through the sacrament a gift of the Holy Spirit is given, that renews confidence and faith in God and strengthens against temptations to discouragement, despair and anguish at the thought of death and the struggle of death; it prevents from losing Christian hope in God's justice, truth and salvation. The special grace of the sacrament of the Anointing of the Sick has as its effects: the uniting of the sick person to the passion of Christ, for his own good and that of the whole Church; the strengthening, peace, and courage to endure, in a Christian manner, the sufferings of illness or old age; the forgiveness of sins, if the sick person was not able to obtain it through the sacrament of penance; the restoration of , if it is conducive to the salvation of his soul; the preparation for passing over to eternal life." Sacramental oil The duly blessed oil used in the sacrament is, as laid down in the Apostolic Constitution, Sacram unctionem infirmorum, pressed from olives or from other plants. It is blessed by the bishop of the diocese at the Chrism Mass he celebrates on Holy Thursday or on a day close to it. If oil blessed by the bishop is not available, the priest administering the sacrament may bless the oil, but only within the framework of the celebration. Ordinary Form of the Roman Rite (1972) The Roman Rite Anointing of the Sick, as revised in 1972, puts greater stress than in the immediately preceding centuries on the sacrament's aspect of healing, primarily spiritual but also physical, and points to the place sickness holds in the normal life of Christians and its part in the redemptive work of the Church. Canon law permits its administration to a Catholic who has reached the age of reason and is beginning to be put in danger by illness or old age, unless the person in question obstinately persists in a manifestly grave sin. "If there is any doubt as to whether the sick person has reached the use of reason, or is dangerously ill, or is dead, this sacrament is to be administered". There is an obligation to administer it to the sick who, when they were in possession of their faculties, at least implicitly asked for it. A new illness or a renewal or worsening of the first illness enables a person to receive the sacrament a further time. The ritual book on pastoral care of the sick provides three rites: anointing outside Mass, anointing within Mass, and anointing in a hospital or institution. The rite of anointing outside Mass begins with a greeting by the priest, followed by sprinkling of all present with holy water, if deemed desirable, and a short instruction. There follows a penitential act, as at the beginning of Mass. If the sick person wishes to receive the sacrament of penance, it is preferable that the priest make himself available for this during a previous visit; but if the sick person must confess during the celebration of the sacrament of anointing, this confession replaces the penitential rite A passage of Scripture is read, and the priest may give a brief explanation of the reading, a short litany is said, and the priest lays his hands on the head of the sick person and then says a prayer of thanksgiving over the already blessed oil or, if necessary, blesses the oil himself. The actual anointing of the sick person is done on the forehead, with the prayer: PER ISTAM SANCTAM UNCTIONEM ET SUAM PIISSIMAM MISERICORDIAM ADIUVET TE DOMINUS GRATIA SPIRITUS SANCTI, UT A PECCATIS LIBERATUM TE SALVET ATQUE PROPITIUS ALLEVIET. AMEN. "Through this holy anointing may the Lord in his love and mercy help you with the grace of the Holy Spirit," and on the hands, with the prayer "May the Lord who frees you from sin save you and raise you up". To each prayer the sick person, if able, responds: "Amen." It is permitted, in accordance with local culture and traditions and the condition of the sick person, to anoint other parts of the body in addition, such as the area of pain or injury, but without repeating the sacramental form. In case of emergency, a single anointing, if possible but not absolutely necessary if not possible on the forehead, is sufficient. Extraordinary Form of the Roman Rite From the early Middle Ages until after the Second Vatican Council the sacrament was administered, within the Latin Church, only when death was approaching and, in practice, bodily recovery was not ordinarily looked for, giving rise, as mentioned above to the name "Extreme Unction" (i.e. final anointing). The extraordinary form of the Roman Rite includes anointing of seven parts of the body while saying in Latin:

hos pedes Oleo benedicto, in nomine Patris, et Filii, et Spiritus Sancti, ut quidquid superfluo, vel nocivo incessu commiserunt, ista aboleat perunctio: per Christum Dominum nostrum. Amen. Eastern Orthodox Church The teaching of the Eastern Orthodox Church on the Holy Mystery (sacrament) of Unction is similar to that of the Roman Catholic Church. However, the reception of the Mystery is not limited to those who are enduring physical illness. The Mystery is given for healing (both physical and spiritual) and for the forgiveness of sin. For this reason, it is normally required that one go to confession before receiving Unction. Because it is a Sacred Mystery of the Church, only Orthodox Christians may receive it. The solemn form of Eastern Christian anointing requires the ministry of seven priests. A table is prepared, upon which is set a vessel containing wheat. Into the wheat has been placed an empty shrine-lamp, seven candles, and seven anointing brushes. Candles are distributed for all to hold during the service. The rite begins with reading Psalm 50 (the great penitential psalm), followed by the chanting of a special canon. After this, the senior priest (or bishop) pours pure olive oil and a small amount of wine into the shrine lamp, and says the "Prayer of the Oil", which calls upon God to "...sanctify this Oil, that it may be effectual for those who shall be anointed therewith, unto healing, and unto relief from every passion, every malady of the flesh and of the spirit, and every ill..." Then follow seven series of epistles, gospels, long prayers, Ektenias (litanies) and anointings. Each series is served by one of the seven priests in turn. The afflicted one is anointed with the sign of the cross on seven places: the forehead, the nostrils, the cheeks, the lips, the breast, the palms of both hands, and the back of the hands. After the last anointing, the Gospel Book is opened and placed with the writing down upon the head of the one who was anointed, and the senior priest reads the "Prayer of the Gospel". At the end, the anointed kisses the Gospel, the Cross and the right hands of the priests, receiving their blessing. Anointing is considered to be a public rather than a private sacrament, and so as many of the faithful who are able are encouraged to attend. It should be celebrated in the church when possible, but if this is impossible, it may be served in the home or hospital room of the afflicted. Unction in the Greek Orthodox Church and Churches of Hellenic custom (Antiochian Eastern Orthodox, Melkite, etc.) is usually given with a minimum of ceremony. Anointing may also be given during Forgiveness Vespers and Great Week, on Great and Holy Wednesday, to all who are prepared. Those who receive Unction on Holy Wednesday should go to Holy Communion on Great Thursday. The significance of receiving Unction on Holy Wednesday is shored up by the hymns in the Triodion for that day, which speak of the sinful woman who anointed the feet of Christ. Just as her sins were forgiven because of her penitence, so the faithful are exhorted to repent of their sins. In the same narrative, Jesus says, "in that she hath poured this ointment on my body, she did it for my burial" (Id., v. 12), linking the unction with Christ's death and resurrection. In some dioceses of the Russian Orthodox Church it is customary for the bishop to visit each parish or region of the diocese some time during Great Lent and give Anointing for the faithful, together with the local clergy. Hussite Church The Hussite Church regards anointing of the sick as one of the seven sacraments. Lutheran churches Anointing of the sick has been retained in Lutheran churches since the Reformation. Although it is not considered a sacrament like baptism, confession and the Eucharist, it is known as a ritual in the same respect as confirmation, holy orders, and matrimony. Liturgy After the penitent has received absolution following confession, the presiding minister recites James 5:14-16. He goes on to recite the following: [Name], you have confessed your sins and received Holy Absolution. In remembrance of the grace of God given by the Holy Spirit in the waters of Holy Baptism, I will anoint you with oil. Confident in our Lord and in love for you, we also pray for you that you will not lose faith. Knowing that in Godly patience the Church endures with you and supports you during this affliction. We firmly believe that this illness is for the glory of God and that the Lord will both hear our prayer and work according to His good and gracious will. He anoints the person on the forehead and says this blessing: Almighty God, the Father of our Lord Jesus Christ, who has given you the new birth of water and the Spirit and has forgiven you all your sins, strengthen you with His grace to life everlasting. Amen. Anglican churches The 1552 and later editions of the Book of Common Prayer omitted the form of anointing given in the original (1549) version in its Order for the Visitation of the Sick, but most twentieth-century Anglican prayer books do have anointing of the sick. The Book of Common Prayer (1662) and the proposed revision of 1928 include the "visitation of the sick" and "communion of the sick" (which consist of various prayers, exhortations and psalms). Some Anglicans accept that anointing of the sick has a sacramental character and is therefore a channel of God's grace, seeing it as an "outward and visible sign of an inward and spiritual grace" which is the definition of a sacrament. The Catechism of the Episcopal Church of the United States of America includes Unction of the Sick as among the "other sacramental rites" and it states that unction can be done with oil or simply with laying on of hands. The rite of anointing is included in the Episcopal Church's "Ministration to the Sick" Article 25 of the Thirty-Nine Articles, which are one of the historical formularies of the Church of England (and as such, the Anglican Communion), speaking of the sacraments, says: "Those five commonly called Sacraments, that is to say, Confirmation, Penance, Orders, Matrimony, and extreme Unction, are not to be counted for Sacraments of the Gospel, being such as have grown partly of the corrupt following of the Apostles, partly are states of life allowed in the Scriptures; but yet have not like nature of Sacraments with Baptism, and the Lord's Supper, for that they have not any visible sign or ceremony ordained of God." Other Protestant communities Protestants provide anointing in a wide variety of formats. Protestant communities generally vary widely on the sacramental character of anointing. Most Mainline Protestants recognize only two sacraments, the eucharist and baptism, deeming anointing only a humanly-instituted rite. Non-traditional Protestant communities generally use the term ordinance rather than sacrament. Mainline beliefs Liturgical or Mainline Protestant communities (e.g. Presbyterian, Congregationalist/United Church of Christ, Methodist, etc.) all have official yet often optional liturgical rites for the anointing of the sick partly on the model of Western pre-Reformation rites. Anointing need not be associated with grave illness or imminent danger of death. Charismatic and Pentecostal beliefs In Charismatic and Pentecostal communities, anointing of the sick is a frequent practice and has been an important ritual in these communities since the respective movements were founded in the 19th and 20th centuries. These communities use extemporaneous forms of administration at the discretion of the minister, who need not be a pastor. There is minimal ceremony attached to its administration. Usually, several people physically touch (laying on of hands) the recipient during the anointing. It may be part of a worship service with the full assembly of the congregation present, but may also be done in more private settings, such as homes or hospital rooms. Some Pentecostals believe that physical healing is within the anointing and so there is often great expectation or at least great hope that a miraculous cure or improvement will occur when someone is being prayed over for healing. Evangelical and fundamentalist beliefs In Evangelical and Fundamentalist communities, anointing of the sick is performed with varying degrees of frequency, although laying on of hands may be more common than anointing. The rite would be similar to that of Pentecostals in its simplicity, but would usually not have the same emotionalism attached to it. Unlike some Pentecostals, Evangelicals and Fundamentalists generally do not believe that physical healing is within the anointing. Therefore, God may or may not grant physical healing to the sick. The healing conferred by anointing is thus a spiritual event that may not result in physical recovery. The Church of the Brethren practices Anointing with Oil as an ordinance along with Baptism, Communion, Laying on of Hands, and the Love Feast. Evangelical Protestants who use anointing differ about whether the person doing the anointing must be an ordained member of the clergy, whether the oil must necessarily be olive oil and have been previously specially consecrated, and about other details. Several Evangelical groups reject the practice so as not to be identified with charismatic and Pentecostal groups, which practice it widely. Latter Day Saint movement The Church of Jesus Christ of Latter-day Saints Latter-day Saints, who consider themselves restorationists, also practice ritual anointing of the sick, as well as other forms of anointing. Members of The Church of Jesus Christ of Latter-day Saints (LDS Church) consider anointing to be an ordinance. Members of the LDS Church who hold the Melchizedek priesthood may use consecrated olive oil in performing the ordinance of blessing of the "sick or afflicted", though oil is not required if it is unavailable. The priesthood holder anoints the recipient's head with a drop of oil, then lays hands upon that head and declare their act of anointing. Then another priesthood holder joins in, if available, and pronounces a "sealing" of the anointing and other words of blessing, as he feels inspired. Melchizedek priesthood holders are also authorized to consecrate any pure olive oil and often carry a personal supply in case they have need to perform an anointing. Oil is not used in other blessings, such as for people seeking comfort or counsel. In addition to the James 5:14-15 reference, the Doctrine and Covenants contains numerous references to the anointing and healing of the sick by those with authority to do so. Community of Christ Administration to the sick is one of the eight sacraments of the Community of Christ, in which it has also been used for people seeking spiritual, emotional or mental healing. See also Anointing of the Sick (Catholic Church) Faith

division may be drawn between "imperative" (or "operational") and "functional" (or "axiomatic") definition styles. Imperative-style definition In the theory of imperative programming languages, an abstract data structure is conceived as an entity that is mutable—meaning that it may be in different states at different times. Some operations may change the state of the ADT; therefore, the order in which operations are evaluated is important, and the same operation on the same entities may have different effects if executed at different times. This is analogous to the instructions of a computer, or the commands and procedures of an imperative language. To underscore this view it is customary to say that the operations are executed or applied, rather than evaluated, similar to the imperative style often used when describing abstract algorithms. (See The Art of Computer Programming by Donald Knuth for more details). Abstract variable Imperative-style definitions of ADT often depend on the concept of an abstract variable, which may be regarded as the simplest non-trivial ADT. An abstract variable V is a mutable entity that admits two operations: store(V, x) where x is a value of unspecified nature; fetch(V), that yields a value, with the constraint that fetch(V) always returns the value x used in the most recent store(V, x) operation on the same variable V. Fetching before storing can be disallowed, defined to have a certain result, or (less desirably), leave the behavior unspecified. As in many programming languages, the operation store(V, x) is often written V ← x (or some similar notation), and fetch(V) is implied whenever a variable V is used in a context where a value is required. Thus, for example, V ← V + 1 is commonly understood to be a shorthand for store(V,fetch(V) + 1). In this definition, it is implicitly assumed that names are always distinct: storing a value into a variable U has no effect on the state of a distinct variable V. To make this assumption explicit, one could add the constraint that if U and V are distinct variables, the sequence { store(U, x); store(V, y) } is equivalent to { store(V, y); store(U, x) }. More generally, ADT definitions often assume that any operation that changes the state of one ADT instance has no effect on the state of any other instance of the same ADT, unless the ADT axioms define certain instances as connected (see aliased) in a specific way. The most common such connections include: Aliasing, in which two or more names refer to the exact same data object. Composition, in which an ADT is defined to contain instances of (the same or other) ADTs. Reference, in which an ADT is defined to refer to instance of (the same or other) ADTs. For example, when extending the definition of an abstract variable to include abstract records, operations upon a field F of a record variable R, clearly involve F, which is distinct from, but also a part of, R. The definition of an ADT may restrict the stored value(s) for its instances, to members of a specific set X called the range of those variables. For example, an ADT for an aggregate such as a Stack or Queue, may constrain all items in the queue to be integers, or at least to all be of a single type (see homogeneity). As in programming languages, such restrictions may simplify the description and analysis of algorithms, and improve its readability. Note that this definition does not imply anything about the result of evaluating fetch(V) when V is un-initialized, that is, before performing any store operation on V. An algorithm that does so may be considered invalid, either (a) because the ADT prohibits such an operation, or (b) simply because its effect is not defined by the ADT. However, there are some important algorithms whose efficiency strongly depends on the assumption that such a fetch is legal, and returns some arbitrary value in the variable's range.) Instance creation Some algorithms need to create new instances of some ADT (such as new variables, or new stacks). To describe such algorithms, one usually includes in the ADT definition a create() operation that yields an instance of the ADT, usually with axioms equivalent to the result of create() is distinct from any instance already in use by the algorithm. This axiom may be strengthened to exclude also partial aliasing with other instances. For practical use, such as axiom may still allow implementations of create() to yield a previously created instance that has become inaccessible to the program; however, defining that such an instance even is "the same" is difficult, especially in the abstract (though even a re-used block of memory is only "the same object" in certain senses). Example: abstract stack (imperative) As another example, an imperative-style definition of an abstract stack could specify that the state of a stack S can be modified only by the operations push(S, x), where x is some value of unspecified nature; pop(S), that yields a value as a result, with the constraint that For any value x and any abstract variable V, the sequence of operations { push(S, x); V ← pop(S) } is equivalent to V ← x. Since the assignment V ← x, by definition, cannot change the state of S, this condition implies that V ← pop(S) restores S to the state it had before the push(S, x). From this condition and from the properties of abstract variables, it follows, for example, that the sequence { push(S, x); push(S, y); U ← pop(S); push(S, z); V ← pop(S); W ← pop(S) } where x, y, and z are any values, and U, V, W are pairwise distinct variables, is equivalent to { U ← y; V ← z; W ← x } Here it is implicitly assumed that operations on a stack instance do not modify the state of any other ADT instance, including other stacks; that is, For any values x, y, and any distinct stacks S and T, the sequence { push(S, x); push(T, y) } is equivalent to { push(T, y); push(S, x) }. An abstract stack definition usually includes also a Boolean-valued function empty(S) and a create() operation that returns a stack instance, with axioms equivalent to create() ≠ S for any prior stack S (a newly created stack is distinct from all previous stacks); empty(create()) (a newly created stack is empty); not empty(push(S, x)) (pushing something into a stack makes it non-empty). Single-instance style Sometimes an ADT is defined as if only one instance of it existed during the execution of the algorithm, and all operations were applied to that instance, which is not explicitly notated. For example, the abstract stack above could have been defined with operations push(x) and pop(),

ADTs. For example, when extending the definition of an abstract variable to include abstract records, operations upon a field F of a record variable R, clearly involve F, which is distinct from, but also a part of, R. The definition of an ADT may restrict the stored value(s) for its instances, to members of a specific set X called the range of those variables. For example, an ADT for an aggregate such as a Stack or Queue, may constrain all items in the queue to be integers, or at least to all be of a single type (see homogeneity). As in programming languages, such restrictions may simplify the description and analysis of algorithms, and improve its readability. Note that this definition does not imply anything about the result of evaluating fetch(V) when V is un-initialized, that is, before performing any store operation on V. An algorithm that does so may be considered invalid, either (a) because the ADT prohibits such an operation, or (b) simply because its effect is not defined by the ADT. However, there are some important algorithms whose efficiency strongly depends on the assumption that such a fetch is legal, and returns some arbitrary value in the variable's range.) Instance creation Some algorithms need to create new instances of some ADT (such as new variables, or new stacks). To describe such algorithms, one usually includes in the ADT definition a create() operation that yields an instance of the ADT, usually with axioms equivalent to the result of create() is distinct from any instance already in use by the algorithm. This axiom may be strengthened to exclude also partial aliasing with other instances. For practical use, such as axiom may still allow implementations of create() to yield a previously created instance that has become inaccessible to the program; however, defining that such an instance even is "the same" is difficult, especially in the abstract (though even a re-used block of memory is only "the same object" in certain senses). Example: abstract stack (imperative) As another example, an imperative-style definition of an abstract stack could specify that the state of a stack S can be modified only by the operations push(S, x), where x is some value of unspecified nature; pop(S), that yields a value as a result, with the constraint that For any value x and any abstract variable V, the sequence of operations { push(S, x); V ← pop(S) } is equivalent to V ← x. Since the assignment V ← x, by definition, cannot change the state of S, this condition implies that V ← pop(S) restores S to the state it had before the push(S, x). From this condition and from the properties of abstract variables, it follows, for example, that the sequence { push(S, x); push(S, y); U ← pop(S); push(S, z); V ← pop(S); W ← pop(S) } where x, y, and z are any values, and U, V, W are pairwise distinct variables, is equivalent to { U ← y; V ← z; W ← x } Here it is implicitly assumed that operations on a stack instance do not modify the state of any other ADT instance, including other stacks; that is, For any values x, y, and any distinct stacks S and T, the sequence { push(S, x); push(T, y) } is equivalent to { push(T, y); push(S, x) }. An abstract stack definition usually includes also a Boolean-valued function empty(S) and a create() operation that returns a stack instance, with axioms equivalent to create() ≠ S for any prior stack S (a newly created stack is distinct from all previous stacks); empty(create()) (a newly created stack is empty); not empty(push(S, x)) (pushing something into a stack makes it non-empty). Single-instance style Sometimes an ADT is defined as if only one instance of it existed during the execution of the algorithm, and all operations were applied to that instance, which is not explicitly notated. For example, the abstract stack above could have been defined with operations push(x) and pop(), that operate on the only existing stack. ADT definitions in this style can be easily rewritten to admit multiple coexisting instances of the ADT, by adding an explicit instance parameter (like S in the previous example) to every operation that uses or modifies the implicit instance. On the other hand, some ADTs cannot be meaningfully defined without assuming multiple instances. This is the case when a single operation takes two distinct instances of the ADT as parameters. For an example, consider augmenting the definition of the abstract stack with an operation compare(S, T) that checks whether the stacks S and T contain the same items in the same order. Functional-style definition Another way to define an ADT, closer to the spirit of functional programming, is to consider each state of the structure as a separate entity. In this view, any operation that modifies the ADT is modelled as a mathematical function that takes the old state as an argument and returns the new state as part of the result. Unlike the imperative operations, these functions have no side effects. Therefore, the order in which they are evaluated is immaterial, and the same operation applied to the same arguments (including the same input states) will always return the same results (and output states). In the functional view, in particular, there is no way (or need) to define an "abstract variable" with the semantics of imperative variables (namely, with fetch and store operations). Instead of storing values into variables, one passes them as arguments to functions. Example: abstract stack (functional) For example, a complete functional-style definition of an abstract stack could use the three operations: push: takes a stack state and an arbitrary value, returns a stack state; top: takes a stack state, returns a value; pop: takes a stack state, returns a stack state. In a functional-style definition there is no need for a create operation. Indeed, there is no notion of "stack instance". The stack states can be thought of as being potential states of a single stack structure, and two-stack states that contain the same values in the same order are considered to be identical states. This view actually mirrors the behavior of some concrete implementations, such as linked lists with hash cons. Instead of create(), a functional-style definition of an abstract stack may assume the existence of a special stack state, the empty stack, designated by a special symbol like Λ or "()"; or define a bottom() operation that takes no arguments and returns this special stack state. Note that the axioms imply that push(Λ, x) ≠ Λ. In a functional-style definition of a stack one does not need an empty predicate: instead, one can test whether a stack is empty by testing whether it is equal to Λ. Note that these axioms do not define the effect of top(s) or pop(s), unless s is a stack state returned by a push. Since push leaves the stack non-empty, those two operations are undefined (hence invalid) when s = Λ. On the other hand, the axioms (and the lack of side effects) imply that push(s, x) = push(t, y) if and only if x = y and s = t. As in some other branches of mathematics, it is customary to assume also that the stack states are only those whose existence can be proved from the axioms in a finite number of steps. In the abstract stack example above, this rule means that every stack is a finite sequence of values, that becomes the empty stack (Λ) after a finite number of pops. By themselves, the axioms above do not exclude the existence of infinite stacks (that can be poped forever, each time yielding a different state) or circular stacks (that return to the same state after a finite number of pops). In particular, they do not exclude states s such that pop(s) = s or push(s, x) = s for some x. However, since one cannot obtain such stack states with the given operations, they are assumed "not to exist". Whether to include complexity Aside from the behavior in terms of axioms, it is also possible to include, in the definition of an ADT operation, their algorithmic complexity. Alexander Stepanov, designer of the C++ Standard Template Library, included complexity guarantees in the STL specification, arguing: Advantages of abstract data typing Encapsulation Abstraction provides a promise that any implementation of the ADT has certain properties and abilities; knowing these is all that is required to make use of an ADT object. Localization of change Code that uses an ADT object will not need to be edited if the implementation of the ADT is changed. Since any changes to the implementation must still comply with the interface, and since code using an ADT object may only refer to properties and abilities specified in the interface, changes may be made to the implementation without requiring any changes in code where the ADT is used. Flexibility Different implementations of the ADT, having all the same properties and abilities, are equivalent and may be used somewhat interchangeably in code that uses the ADT. This gives a great deal of flexibility when using ADT objects in different situations. For example, different implementations of the ADT may be more efficient in different situations; it is possible to use each in the situation where they are preferable, thus increasing overall efficiency. Typical operations Some operations that are often specified for ADTs (possibly under other names) are compare(s, t), that tests whether two instances' states are equivalent in some sense; hash(s), that computes some standard hash function from the instance's state; print(s) or show(s), that produces a human-readable representation of the instance's state. In imperative-style ADT definitions, one often finds also create(), that yields a new instance of the ADT; initialize(s), that prepares a newly created instance s for further operations, or resets it to some "initial state"; copy(s, t), that puts instance s in a state equivalent to that of t; clone(t), that performs s ← create(), copy(s, t), and returns s; free(s) or destroy(s), that reclaims the memory and other resources used by s. The free operation is not normally relevant or meaningful, since ADTs are theoretical entities that do not "use memory". However, it may be necessary when one needs to analyze the storage used by an algorithm that uses the ADT. In that case, one needs additional axioms that specify how much memory each ADT instance uses, as a function of its state, and how much of it is returned to the pool by free. Examples Some common ADTs, which have proved useful in a great variety of applications, are Collection Container List Set Multiset Map Multimap Graph Tree Stack

to relocate the struggling Cardinals to St. Louis, eliminating that city as a potential AFL market. Ralph Wilson, who owned a minority interest in the NFL's Detroit Lions at the time, initially announced he was placing a team in Miami, but like the Seattle situation, was also rebuffed by local ownership (like Seattle, Miami would later get a pro football team of its own as well); given five other choices, Wilson negotiated with McGroder and brought the team that became the Bills to Buffalo. Buffalo was officially awarded its franchise on October 28. During a league meeting on November 22, a 10-man ownership group from Boston (led by Billy Sullivan) was awarded the AFL's eighth team. On November 30, 1959, Joe Foss, a World War II Marine fighter ace and former governor of South Dakota, was named the AFL's first commissioner. Foss commissioned a friend of Harry Wismer's to develop the AFL's eagle-on-football logo. Hunt was elected President of the AFL on January 26, 1960. The AFL draft The AFL's first draft took place the same day Boston was awarded its franchise, and lasted 33 rounds. The league held a second draft on December 2, which lasted for 20 rounds. Because the Oakland Raiders joined after the AFL draft, they inherited Minnesota's selections. A special allocation draft was held in January 1960, to allow the Raiders to stock their team, as some of the other AFL teams had already signed some of Minneapolis' original draft choices. Crisis and success (1960–61) In November 1959, Minneapolis-Saint Paul owner Max Winter announced his intent to leave the AFL to accept a franchise offer from the NFL. In 1961, his team began play in the NFL as the Minnesota Vikings. Los Angeles Chargers owner Barron Hilton demanded that a replacement for Minnesota be placed in California, to reduce his team's operating costs and to create a rivalry. After a brief search, Oakland was chosen and an ownership group led by F. Wayne Valley and local real estate developer Chet Soda was formed. After initially being called the Oakland "Señores", the Oakland Raiders officially joined the AFL on January 30, 1960. The AFL's first major success came when the Houston Oilers signed Billy Cannon, the All-American and 1959 Heisman Trophy winner from LSU. Cannon signed a $100,000 contract to play for the Oilers, despite having already signed a $50,000 contract with the NFL's Los Angeles Rams. The Oilers filed suit and claimed that Rams general manager Pete Rozelle had unduly manipulated Cannon. The court upheld the Houston contract, and with Cannon the Oilers appeared in the AFL's first three championship games (winning two). On June 9, 1960, the league signed a five-year television contract with ABC, which brought in revenues of approximately $2.125 million per year for the entire league. On June 17, the AFL filed an antitrust lawsuit against the NFL, which was dismissed in 1962 after a two-month trial. The AFL began regular-season play (a night game on Friday, September 9, 1960) with eight teams in the league – the Boston Patriots, Buffalo Bills, Dallas Texans, Denver Broncos, Houston Oilers, Los Angeles Chargers, New York Titans, and Oakland Raiders. Raiders' co-owner Wayne Valley dubbed the AFL ownership "The Foolish Club", a term Lamar Hunt subsequently used on team photographs he sent as Christmas gifts. The Oilers became the first-ever league champions by defeating the Chargers, 24–16, in the AFL Championship on January 1, 1961. Attendance for the 1960 season was respectable for a new league, but not nearly that of the NFL. In 1960, the NFL averaged attendance of more than 40,000 fans per game and more popular NFL teams in 1960 regularly saw attendance figures in excess of 50,000 per game, while CFL attendances averaged approximately 20,000 per game. By comparison, AFL attendance averaged about 16,500 per game and generally hovered between 10,000 and 20,000 per game. Professional football was still primarily a gate-driven business in 1960, so low attendance meant financial losses. The Raiders, with a league-worst average attendance of just 9,612, lost $500,000 in their first year and only survived after receiving a $400,000 loan from Bills owner Ralph Wilson. In an early sign of stability, however, the AFL did not lose any teams after its first year of operation. In fact, the only major change was the Chargers' move from Los Angeles to nearby San Diego (they would return to Los Angeles in 2017). On August 8, 1961, the AFL challenged the Canadian Football League to an exhibition game that would feature the Hamilton Tiger-Cats and the Buffalo Bills, which was attended by 24,376 spectators. Playing at Civic Stadium in Hamilton, Ontario, the Tiger-Cats defeated the Bills 38–21 playing a mix of AFL and CFL rules. Movement and instability (1962–63) While the Oilers found instant success in the AFL, other teams did not fare as well. The Oakland Raiders and New York Titans struggled on and off the field during their first few seasons in the league. Oakland's eight-man ownership group was reduced to just three in 1961, after heavy financial losses in their first season. Attendance for home games was poor, partly due to the team playing in the San Francisco Bay Area—which already had an established NFL team (the San Francisco 49ers)—but the product on the field was also to blame. After winning six games in their debut season, the Raiders won a total of three times in the 1961 and 1962 seasons. Oakland took part in a 1961 supplemental draft meant to boost the weaker teams in the league, but it did little good. They participated in another such draft in 1962. The Titans fared a little better on the field but had their own financial troubles. Attendance was so low for home games that team owner Harry Wismer had fans move to seats closer to the field to give the illusion of a fuller stadium on television. Eventually Wismer could no longer afford to meet his payroll, and on November 8, 1962, the AFL took over operations of the team. The Titans were sold to a five-person ownership group headed by Sonny Werblin on March 28, 1963, and in April the new owners changed the team's name to the New York Jets. The Raiders and Titans both finished last in their respective divisions in the 1962 season. The Texans and Oilers, winners of their divisions, faced each other for the 1962 AFL Championship on December 23. The Texans dethroned the two-time champion Oilers, 20–17, in a double-overtime contest that was, at the time, professional football's longest-ever game. In 1963, the Texans became the second AFL team to move to a new city. Lamar Hunt felt that despite winning the league championship in 1962, the Texans could not sufficiently profit in the same market as the Dallas Cowboys, which entered the NFL as an expansion franchise in 1960. After meetings with New Orleans, Atlanta, and Miami, Hunt announced on May 22 that the Texans' new home would be Kansas City, Missouri. Kansas City mayor Harold Roe Bartle (nicknamed "Chief") was instrumental in his city's success in attracting the team. Partly to honor Bartle, the franchise officially became the Kansas City Chiefs on May 26. The San Diego Chargers, under head coach Sid Gillman, won a decisive 51–10 victory over the Boston Patriots for the 1963 AFL Championship. Confident that his team was capable of beating the NFL-champion Chicago Bears (he had the Chargers' rings inscribed with the phrase "World Champions"), Gillman approached NFL Commissioner Pete Rozelle and proposed a final championship game between the two teams. Rozelle declined the offer; however, the game would be instituted three seasons later. Watershed years (1964–65) A series of events throughout the next few years demonstrated the AFL's ability to achieve a greater level of equality with the NFL. On January 29, 1964, the AFL signed a lucrative $36 million television contract with NBC (beginning in the 1965 season), which gave the league money it needed to compete with the NFL for players. Pittsburgh Steelers owner Art Rooney was quoted as saying to NFL Commissioner Pete Rozelle after news of the AFL's new TV deal that "They don't have to call us 'Mister' anymore". A single-game attendance record was set on November 8, 1964, when 61,929 fans packed Shea Stadium to watch the New York Jets and Buffalo Bills. The bidding war for players between the AFL and NFL escalated in 1965. The Chiefs drafted University of Kansas star Gale Sayers in the first round of the 1965 AFL draft (held November 28, 1964), while the Chicago Bears did the same in the NFL draft. Sayers eventually signed with the Bears. A similar situation occurred when the New York Jets and the NFL's St. Louis Cardinals both drafted University of Alabama quarterback Joe Namath. In what was viewed as a key victory for the AFL, Namath signed a $427,000 contract with the Jets on January 2, 1965 (the deal included a new car). It was the highest amount of money ever paid to a collegiate football player, and is cited as the strongest contributing factor to the eventual merger between the two leagues. After the 1963 season, the Newark Bears of the Atlantic Coast Football League expressed interest in joining the AFL; concerns over having to split the New York metro area with the still-uncertain Jets were a factor in the Bears' bid being rejected. In 1965, Milwaukee officials tried to lure an expansion team to play at Milwaukee County Stadium where the Green Bay Packers had played parts of their home schedule after an unsuccessful attempt to lure the Packers there full-time, but Packers head coach Vince Lombardi invoked the team's exclusive lease, and additionally, signed an extension to keep some home games in Milwaukee until 1976. In early 1965, the AFL awarded its first expansion team to Rankin Smith of Atlanta. The NFL quickly counteroffered Smith a franchise, which Smith accepted; the Atlanta Falcons began play as an NFL franchise for the 1966 season. In March 1965, Joe Robbie had met with Commissioner Foss to inquire about an expansion franchise for Miami. On May 6, after Atlanta's exit, Robbie secured an agreement with Miami mayor Robert King High to bring a team to Miami. League expansion was approved at a meeting held on June 7, and on August 16 the AFL's ninth franchise was officially awarded to Robbie and television star Danny Thomas. The Miami Dolphins joined the league for a fee of $7.5 million and started play in the AFL's Eastern Division in 1966. The AFL also planned to add two more teams by 1967. Escalation and merger (1966–67) In 1966, the rivalry between the AFL and NFL reached an all-time peak. On April 7, Joe Foss resigned as AFL commissioner. His successor was Oakland Raiders head coach and general manager Al Davis, who had been instrumental in turning around the fortunes of that franchise. No longer content with trying to outbid the NFL for college talent, the AFL under Davis started to recruit players already on NFL squads. Davis's strategy focused on quarterbacks in particular, and in two months he persuaded seven NFL quarterbacks to sign with the AFL. Although Davis's intention was to help the AFL win the bidding war, some AFL and NFL owners saw the escalation as detrimental to both leagues. Alarmed with the rate of spending in the league, Hilton Hotels forced Barron Hilton to relinquish his stake in the Chargers as a condition of maintaining his leadership role with the hotel chain. The same month Davis was named commissioner, several NFL owners, headed by Dallas Cowboys general manager Tex Schramm, secretly approached Lamar Hunt and other AFL owners and started negotiations with the AFL to merge. A series of secret meetings commenced in Dallas to discuss the concerns of both leagues over rapidly increasing player salaries, as well as the practice of player poaching. Hunt and Schramm completed the basic groundwork for a merger of the two leagues by the end of May, and on June 8, 1966, the merger was officially announced. Under the terms of the agreement, the two leagues would hold a common player draft. The agreement also called for a title game to be played between the champions of the respective leagues. The two leagues would be fully merged by 1970, NFL commissioner Pete Rozelle would remain as commissioner of the merged league, which would be named the NFL. Additional expansion teams would eventually be awarded by 1970 or soon thereafter to bring it to a 28-team league. (The additional expansion would not happen until 1976.) The AFL also agreed to pay indemnities of $18 million to the NFL over 20 years. In protest, Davis resigned as AFL commissioner on July 25 rather than remain until the completion of the merger, and Milt Woodard was named president of the AFL, with the "commissioner" title vacated because of Rozelle's expanded role. On January 15, 1967, the first-ever championship game between the two separate professional football leagues, the "AFL-NFL World Championship Game" (retroactively referred to as Super Bowl I), was played in Los Angeles. After a close first half, the NFL champion Green Bay Packers overwhelmed the AFL champion Kansas City Chiefs, 35–10. The loss reinforced for many the notion that the AFL was an inferior league. Packers head coach Vince Lombardi stated after the game, "I do not think they are as good as the top teams in the National Football League." The second AFL-NFL Championship (Super Bowl II) yielded a similar result. The Oakland Raiders—who had easily beaten the Houston Oilers to win their first AFL championship—were overmatched by the Packers, 33–14. The more experienced Packers capitalized on a number of Raiders miscues and never trailed. Green Bay defensive tackle Henry Jordan offered a compliment to Oakland and the AFL, when he said, "... the AFL is becoming much more sophisticated on offense. I think the league has always had good personnel, but the blocks were subtler and better conceived in this game." The AFL added its tenth and final team on May 24, 1967, when it awarded the league's second expansion franchise to an ownership group from Cincinnati, Ohio, headed by NFL legend Paul Brown. Although Brown had intended to join the NFL, he agreed to join the AFL when he learned that his team would be included in the NFL once the merger was completed. The Cincinnati Bengals began play in the 1968 season, finishing last in the Western Division. Legitimacy and the end of an era (1968–1970) While many AFL players and observers believed their league was the equal of the NFL, their first two Super Bowl performances did nothing to prove it. However, on November 17, 1968, when NBC cut away from a game between the Jets and Raiders to air the children's movie Heidi, the ensuing uproar helped disprove the notion that fans still considered the AFL an inferior product. The perception of AFL inferiority forever changed on January 12, 1969, when the AFL Champion New York Jets shocked the heavily favored NFL Champion Baltimore Colts in Super Bowl III. The Colts, who entered the contest favored by as many as 18 points, had completed the 1968 NFL season with a 13–1 record, and won the NFL title with a convincing 34–0 win over the Cleveland Browns. Led by their stalwart defense—which allowed a record-low 144 points—the 1968 Colts were considered one of the best-ever NFL teams. By contrast, the Jets had allowed 280 points, the highest total for any division winner in the two leagues. They had also only narrowly beaten the favored Oakland Raiders 27–23 in the AFL championship game. Jets quarterback Joe Namath recalled that in the days leading up to the game, he grew increasingly angry when told New York had no chance to beat Baltimore. Three days before the game, a frustrated Namath responded to a heckler at the Touchdown Club in Miami by declaring, "We're going to win Sunday, I'll guarantee you." Namath and the Jets made good on his guarantee as they held the Colts scoreless until late in the fourth quarter. The Jets won, 16–7, in what is considered one of the greatest upsets in American sports history. With the win, the AFL finally achieved parity with the NFL and legitimized the merger of the two leagues. That notion was reinforced one year later in Super Bowl IV, when the AFL champion Kansas City Chiefs upset the NFL champion Minnesota Vikings, 23–7, in the last championship game to be played between the two leagues. The Vikings, favored by 12½ points, were held to just 67 rushing yards. The last game in AFL history was the AFL All-Star Game, held in Houston's Astrodome on January 17, 1970. The Western All-Stars, led by Chargers quarterback John Hadl, defeated the Eastern All-Stars, 26–3. Buffalo rookie running back O. J. Simpson carried the ball for the last play in AFL history. Hadl was named the game's Most Valuable Player. Prior to the start of the 1970 NFL season, the merged league was organized into two conferences of three divisions each. All ten AFL teams made up the bulk of the new American Football Conference. To avoid having an inequitable number of teams in each conference, the leagues voted to move three NFL teams to the AFC. Motivated by the prospect of an intrastate rivalry with the Bengals as well as by personal animosity toward Paul Brown, Cleveland Browns owner Art Modell quickly offered to include his team in the AFC. He helped persuade the Pittsburgh Steelers (the Browns' archrivals) and Baltimore Colts (who shared the Baltimore-Washington market with the Washington Redskins) to follow suit, and each team received US$3 million to make the switch. The remaining 13 NFL teams became part of the National Football Conference. Pro Football Hall of Fame receiver Charlie Joiner, who started his career with the Houston Oilers (1969), was the last AFL player active in professional football, retiring after the 1986 season, when he played for the San Diego Chargers. Legacy Overview The American Football League stands as the only professional football league to successfully compete against the NFL. When the two leagues merged in 1970, all ten AFL franchises and their statistics became part of the new NFL. Every other professional league that had competed against the NFL before the AFL–NFL merger had folded completely: the three previous leagues named "American Football League" and the All-America Football Conference. From an earlier AFL (1936–1937), only the Cleveland Rams (now the Los Angeles Rams) joined the NFL and are currently operating, as are the Cleveland Browns and the San Francisco 49ers from the AAFC. A third AAFC team, the Baltimore Colts (not related to the 1953–1983 Baltimore Colts or to the current Indianapolis Colts franchise), played only one year in the NFL, disbanding at the end of the 1950 season. The league resulting from the merger was a 26-team juggernaut (since expanded to 32) with television rights covering all of the Big Three television networks and teams in close proximity to almost all of the top 40 metropolitan areas, a fact that has precluded any other competing league from gaining traction since the merger; failed attempts to mimic the AFL's success included the World Football League (1974–75), United States Football League (1983–85), the United Football League (2009–2012) and the AAF (2019), and two iterations of the XFL (2001 and 2020). The AFL was also the most successful of numerous upstart leagues of the 1960s and 1970s that attempted to challenge a major professional league's dominance. All nine teams that were in the AFL at the time the merger was agreed upon were accepted into the league intact (as was the tenth team added between the time of the merger's agreement and finalization), and none of the AFL's teams have ever folded. For comparison, the World Hockey Association (1972–79) managed to have four of its six remaining teams merged into the National Hockey League, which actually caused the older league to contract a franchise, but WHA teams were forced to disperse the majority of their rosters and restart as expansion teams. The merged WHA teams were also not financially sound (in large part from the hefty expansion fees the NHL imposed on them), and three of the four were forced to relocate within 20 years. Like the WHA, The American Basketball Association (1967–76) also managed to have only four of its teams merged into the National Basketball Association, and the rest of the league was forced to fold. Both the WHA and ABA lost several teams to financial insolvency over the course of their existences. The Continental

NFL. In 1961, his team began play in the NFL as the Minnesota Vikings. Los Angeles Chargers owner Barron Hilton demanded that a replacement for Minnesota be placed in California, to reduce his team's operating costs and to create a rivalry. After a brief search, Oakland was chosen and an ownership group led by F. Wayne Valley and local real estate developer Chet Soda was formed. After initially being called the Oakland "Señores", the Oakland Raiders officially joined the AFL on January 30, 1960. The AFL's first major success came when the Houston Oilers signed Billy Cannon, the All-American and 1959 Heisman Trophy winner from LSU. Cannon signed a $100,000 contract to play for the Oilers, despite having already signed a $50,000 contract with the NFL's Los Angeles Rams. The Oilers filed suit and claimed that Rams general manager Pete Rozelle had unduly manipulated Cannon. The court upheld the Houston contract, and with Cannon the Oilers appeared in the AFL's first three championship games (winning two). On June 9, 1960, the league signed a five-year television contract with ABC, which brought in revenues of approximately $2.125 million per year for the entire league. On June 17, the AFL filed an antitrust lawsuit against the NFL, which was dismissed in 1962 after a two-month trial. The AFL began regular-season play (a night game on Friday, September 9, 1960) with eight teams in the league – the Boston Patriots, Buffalo Bills, Dallas Texans, Denver Broncos, Houston Oilers, Los Angeles Chargers, New York Titans, and Oakland Raiders. Raiders' co-owner Wayne Valley dubbed the AFL ownership "The Foolish Club", a term Lamar Hunt subsequently used on team photographs he sent as Christmas gifts. The Oilers became the first-ever league champions by defeating the Chargers, 24–16, in the AFL Championship on January 1, 1961. Attendance for the 1960 season was respectable for a new league, but not nearly that of the NFL. In 1960, the NFL averaged attendance of more than 40,000 fans per game and more popular NFL teams in 1960 regularly saw attendance figures in excess of 50,000 per game, while CFL attendances averaged approximately 20,000 per game. By comparison, AFL attendance averaged about 16,500 per game and generally hovered between 10,000 and 20,000 per game. Professional football was still primarily a gate-driven business in 1960, so low attendance meant financial losses. The Raiders, with a league-worst average attendance of just 9,612, lost $500,000 in their first year and only survived after receiving a $400,000 loan from Bills owner Ralph Wilson. In an early sign of stability, however, the AFL did not lose any teams after its first year of operation. In fact, the only major change was the Chargers' move from Los Angeles to nearby San Diego (they would return to Los Angeles in 2017). On August 8, 1961, the AFL challenged the Canadian Football League to an exhibition game that would feature the Hamilton Tiger-Cats and the Buffalo Bills, which was attended by 24,376 spectators. Playing at Civic Stadium in Hamilton, Ontario, the Tiger-Cats defeated the Bills 38–21 playing a mix of AFL and CFL rules. Movement and instability (1962–63) While the Oilers found instant success in the AFL, other teams did not fare as well. The Oakland Raiders and New York Titans struggled on and off the field during their first few seasons in the league. Oakland's eight-man ownership group was reduced to just three in 1961, after heavy financial losses in their first season. Attendance for home games was poor, partly due to the team playing in the San Francisco Bay Area—which already had an established NFL team (the San Francisco 49ers)—but the product on the field was also to blame. After winning six games in their debut season, the Raiders won a total of three times in the 1961 and 1962 seasons. Oakland took part in a 1961 supplemental draft meant to boost the weaker teams in the league, but it did little good. They participated in another such draft in 1962. The Titans fared a little better on the field but had their own financial troubles. Attendance was so low for home games that team owner Harry Wismer had fans move to seats closer to the field to give the illusion of a fuller stadium on television. Eventually Wismer could no longer afford to meet his payroll, and on November 8, 1962, the AFL took over operations of the team. The Titans were sold to a five-person ownership group headed by Sonny Werblin on March 28, 1963, and in April the new owners changed the team's name to the New York Jets. The Raiders and Titans both finished last in their respective divisions in the 1962 season. The Texans and Oilers, winners of their divisions, faced each other for the 1962 AFL Championship on December 23. The Texans dethroned the two-time champion Oilers, 20–17, in a double-overtime contest that was, at the time, professional football's longest-ever game. In 1963, the Texans became the second AFL team to move to a new city. Lamar Hunt felt that despite winning the league championship in 1962, the Texans could not sufficiently profit in the same market as the Dallas Cowboys, which entered the NFL as an expansion franchise in 1960. After meetings with New Orleans, Atlanta, and Miami, Hunt announced on May 22 that the Texans' new home would be Kansas City, Missouri. Kansas City mayor Harold Roe Bartle (nicknamed "Chief") was instrumental in his city's success in attracting the team. Partly to honor Bartle, the franchise officially became the Kansas City Chiefs on May 26. The San Diego Chargers, under head coach Sid Gillman, won a decisive 51–10 victory over the Boston Patriots for the 1963 AFL Championship. Confident that his team was capable of beating the NFL-champion Chicago Bears (he had the Chargers' rings inscribed with the phrase "World Champions"), Gillman approached NFL Commissioner Pete Rozelle and proposed a final championship game between the two teams. Rozelle declined the offer; however, the game would be instituted three seasons later. Watershed years (1964–65) A series of events throughout the next few years demonstrated the AFL's ability to achieve a greater level of equality with the NFL. On January 29, 1964, the AFL signed a lucrative $36 million television contract with NBC (beginning in the 1965 season), which gave the league money it needed to compete with the NFL for players. Pittsburgh Steelers owner Art Rooney was quoted as saying to NFL Commissioner Pete Rozelle after news of the AFL's new TV deal that "They don't have to call us 'Mister' anymore". A single-game attendance record was set on November 8, 1964, when 61,929 fans packed Shea Stadium to watch the New York Jets and Buffalo Bills. The bidding war for players between the AFL and NFL escalated in 1965. The Chiefs drafted University of Kansas star Gale Sayers in the first round of the 1965 AFL draft (held November 28, 1964), while the Chicago Bears did the same in the NFL draft. Sayers eventually signed with the Bears. A similar situation occurred when the New York Jets and the NFL's St. Louis Cardinals both drafted University of Alabama quarterback Joe Namath. In what was viewed as a key victory for the AFL, Namath signed a $427,000 contract with the Jets on January 2, 1965 (the deal included a new car). It was the highest amount of money ever paid to a collegiate football player, and is cited as the strongest contributing factor to the eventual merger between the two leagues. After the 1963 season, the Newark Bears of the Atlantic Coast Football League expressed interest in joining the AFL; concerns over having to split the New York metro area with the still-uncertain Jets were a factor in the Bears' bid being rejected. In 1965, Milwaukee officials tried to lure an expansion team to play at Milwaukee County Stadium where the Green Bay Packers had played parts of their home schedule after an unsuccessful attempt to lure the Packers there full-time, but Packers head coach Vince Lombardi invoked the team's exclusive lease, and additionally, signed an extension to keep some home games in Milwaukee until 1976. In early 1965, the AFL awarded its first expansion team to Rankin Smith of Atlanta. The NFL quickly counteroffered Smith a franchise, which Smith accepted; the Atlanta Falcons began play as an NFL franchise for the 1966 season. In March 1965, Joe Robbie had met with Commissioner Foss to inquire about an expansion franchise for Miami. On May 6, after Atlanta's exit, Robbie secured an agreement with Miami mayor Robert King High to bring a team to Miami. League expansion was approved at a meeting held on June 7, and on August 16 the AFL's ninth franchise was officially awarded to Robbie and television star Danny Thomas. The Miami Dolphins joined the league for a fee of $7.5 million and started play in the AFL's Eastern Division in 1966. The AFL also planned to add two more teams by 1967. Escalation and merger (1966–67) In 1966, the rivalry between the AFL and NFL reached an all-time peak. On April 7, Joe Foss resigned as AFL commissioner. His successor was Oakland Raiders head coach and general manager Al Davis, who had been instrumental in turning around the fortunes of that franchise. No longer content with trying to outbid the NFL for college talent, the AFL under Davis started to recruit players already on NFL squads. Davis's strategy focused on quarterbacks in particular, and in two months he persuaded seven NFL quarterbacks to sign with the AFL. Although Davis's intention was to help the AFL win the bidding war, some AFL and NFL owners saw the escalation as detrimental to both leagues. Alarmed with the rate of spending in the league, Hilton Hotels forced Barron Hilton to relinquish his stake in the Chargers as a condition of maintaining his leadership role with the hotel chain. The same month Davis was named commissioner, several NFL owners, headed by Dallas Cowboys general manager Tex Schramm, secretly approached Lamar Hunt and other AFL owners and started negotiations with the AFL to merge. A series of secret meetings commenced in Dallas to discuss the concerns of both leagues over rapidly increasing player salaries, as well as the practice of player poaching. Hunt and Schramm completed the basic groundwork for a merger of the two leagues by the end of May, and on June 8, 1966, the merger was officially announced. Under the terms of the agreement, the two leagues would hold a common player draft. The agreement also called for a title game to be played between the champions of the respective leagues. The two leagues would be fully merged by 1970, NFL commissioner Pete Rozelle would remain as commissioner of the merged league, which would be named the NFL. Additional expansion teams would eventually be awarded by 1970 or soon thereafter to bring it to a 28-team league. (The additional expansion would not happen until 1976.) The AFL also agreed to pay indemnities of $18 million to the NFL over 20 years. In protest, Davis resigned as AFL commissioner on July 25 rather than remain until the completion of the merger, and Milt Woodard was named president of the AFL, with the "commissioner" title vacated because of Rozelle's expanded role. On January 15, 1967, the first-ever championship game between the two separate professional football leagues, the "AFL-NFL World Championship Game" (retroactively referred to as Super Bowl I), was played in Los Angeles. After a close first half, the NFL champion Green Bay Packers overwhelmed the AFL champion Kansas City Chiefs, 35–10. The loss reinforced for many the notion that the AFL was an inferior league. Packers head coach Vince Lombardi stated after the game, "I do not think they are as good as the top teams in the National Football League." The second AFL-NFL Championship (Super Bowl II) yielded a similar result. The Oakland Raiders—who had easily beaten the Houston Oilers to win their first AFL championship—were overmatched by the Packers, 33–14. The more experienced Packers capitalized on a number of Raiders miscues and never trailed. Green Bay defensive tackle Henry Jordan offered a compliment to Oakland and the AFL, when he said, "... the AFL is becoming much more sophisticated on offense. I think the league has always had good personnel, but the blocks were subtler and better conceived in this game." The AFL added its tenth and final team on May 24, 1967, when it awarded the league's second expansion franchise to an ownership group from Cincinnati, Ohio, headed by NFL legend Paul Brown. Although Brown had intended to join the NFL, he agreed to join the AFL when he learned that his team would be included in the NFL once the merger was completed. The Cincinnati Bengals began play in the 1968 season, finishing last in the Western Division. Legitimacy and the end of an era (1968–1970) While many AFL players and observers believed their league was the equal of the NFL, their first two Super Bowl performances did nothing to prove it. However, on November 17, 1968, when NBC cut away from a game between the Jets and Raiders to air the children's movie Heidi, the ensuing uproar helped disprove the notion that fans still considered the AFL an inferior product. The perception of AFL inferiority forever changed on January 12, 1969, when the AFL Champion New York Jets shocked the heavily favored NFL Champion Baltimore Colts in Super Bowl III. The Colts, who entered the contest favored by as many as 18 points, had completed the 1968 NFL season with a 13–1 record, and won the NFL title with a convincing 34–0 win over the Cleveland Browns. Led by their stalwart defense—which allowed a record-low 144 points—the 1968 Colts were considered one of the best-ever NFL teams. By contrast, the Jets had allowed 280 points, the highest total for any division winner in the two leagues. They had also only narrowly beaten the favored Oakland Raiders 27–23 in the AFL championship game. Jets quarterback Joe Namath recalled that in the days leading up to the game, he grew increasingly angry when told New York had no chance to beat Baltimore. Three days before the game, a frustrated Namath responded to a heckler at the Touchdown Club in Miami by declaring, "We're going to win Sunday, I'll guarantee you." Namath and the Jets made good on his guarantee as they held the Colts scoreless until late in the fourth quarter. The Jets won, 16–7, in what is considered one of the greatest upsets in American sports history. With the win, the AFL finally achieved parity with the NFL and legitimized the merger of the two leagues. That notion was reinforced one year later in Super Bowl IV, when the AFL champion Kansas City Chiefs upset the NFL champion Minnesota Vikings, 23–7, in the last championship game to be played between the two leagues. The Vikings, favored by 12½ points, were held to just 67 rushing yards. The last game in AFL history was the AFL All-Star Game, held in Houston's Astrodome on January 17, 1970. The Western All-Stars, led by Chargers quarterback John Hadl, defeated the Eastern All-Stars, 26–3. Buffalo rookie running back O. J. Simpson carried the ball for the last play in AFL history. Hadl was named the game's Most Valuable Player. Prior to the start of the 1970 NFL season, the merged league was organized into two conferences of three divisions each. All ten AFL teams made up the bulk of the new American Football Conference. To avoid having an inequitable number of teams in each conference, the leagues voted to move three NFL teams to the AFC. Motivated by the prospect of an intrastate rivalry with the Bengals as well as by personal animosity toward Paul Brown, Cleveland Browns owner Art Modell quickly offered to include his team in the AFC. He helped persuade the Pittsburgh Steelers (the Browns' archrivals) and Baltimore Colts (who shared the Baltimore-Washington market with the Washington Redskins) to follow suit, and each team received US$3 million to make the switch. The remaining 13 NFL teams became part of the National Football Conference. Pro Football Hall of Fame receiver Charlie Joiner, who started his career with the Houston Oilers (1969), was the last AFL player active in professional football, retiring after the 1986 season, when he played for the San Diego Chargers. Legacy Overview The American Football League stands as the only professional football league to successfully compete against the NFL. When the two leagues merged in 1970, all ten AFL franchises and their statistics became part of the new NFL. Every other professional league that had competed against the NFL before the AFL–NFL merger had folded completely: the three previous leagues named "American Football League" and the All-America Football Conference. From an earlier AFL (1936–1937), only the Cleveland Rams (now the Los Angeles Rams) joined the NFL and are currently operating, as are the Cleveland Browns and the San Francisco 49ers from the AAFC. A third AAFC team, the Baltimore Colts (not related to the 1953–1983 Baltimore Colts or to the current Indianapolis Colts franchise), played only one year in the NFL, disbanding at the end of the 1950 season. The league resulting from the merger was a 26-team juggernaut (since expanded to 32) with television rights covering all of the Big Three television networks and teams in close proximity to almost all of the top 40 metropolitan areas, a fact that has precluded any other competing league from gaining traction since the merger; failed attempts to mimic the AFL's success included the World Football League (1974–75), United States Football League (1983–85), the United Football League (2009–2012) and the AAF (2019), and two iterations of the XFL (2001 and 2020). The AFL was also the most successful of numerous upstart leagues of the 1960s and 1970s that attempted to challenge a major professional league's dominance. All nine teams that were in the AFL at the time the merger was agreed upon were accepted into the league intact (as was the tenth team added between the time of the merger's agreement and finalization), and none of the AFL's teams have ever folded. For comparison, the World Hockey Association (1972–79) managed to have four of its six remaining teams merged into the National Hockey League, which actually caused the older league to contract a franchise, but WHA teams were forced to disperse the majority of their rosters and restart as expansion teams. The merged WHA teams were also not financially sound (in large part from the hefty expansion fees the NHL imposed on them), and three of the four were forced to relocate within 20 years. Like the WHA, The American Basketball Association (1967–76) also managed to have only four of its teams merged into the National Basketball Association, and the rest of the league was forced to fold. Both the WHA and ABA lost several teams to financial insolvency over the course of their existences. The Continental League, a proposed third league for Major League Baseball that was to begin play in 1961, never played a single game, largely because MLB responded to the proposal by expanding to four of that league's proposed cities.

the early 1940s. Roma finished in the lower half of Serie A for five seasons in a row, before eventually succumbing to their only ever relegation to Serie B at the end of the 1950–51 season, around a decade after their championship victory. Under future Italy national team manager Giuseppe Viani, promotion straight back up was achieved. After returning to the Serie A, Roma managed to stabilise themselves as a top-half club again with players such as Egisto Pandolfini, Dino Da Costa and Dane Helge Bronée. Their best finish of this period was under the management of Englishman Jesse Carver, when in 1954–55, they finished as runners-up after Udinese, who originally finished second were relegated for corruption. Although Roma were unable to break into the top four during the following decade, they did achieve some measure of cup success. Their first honour outside of Italy was recorded in 1960–61 when Roma won the Inter-Cities Fairs Cup by defeating Birmingham City 4–2 in the finals. A few years later, Roma won their first Coppa Italia trophy in 1963–64 after defeating Torino 1–0. Their lowest point came during the 1964–65 season, when manager Juan Carlos Lorenzo announced the club could not pay its players and was unlikely to be able to afford to travel to Vicenza to fulfil its next fixture. Supporters kept the club going with a fundraiser at the Sistine Theatre and bankruptcy was avoided with the election of a new club president Franco Evangelisti. Their second Coppa Italia trophy was won in 1968–69, when it competed in a small, league-like system. Giacomo Losi set a Roma appearance record in 1969 with 450 appearances in all competitions, a record that would last 38 years. Time of mixed fortunes Roma were able to add another cup to their collection in 1972, with a 3–1 victory over Blackpool in the Anglo-Italian Cup. During much of the 1970s, Roma's appearance in the top half of Serie A was sporadic. The best place the club were able to achieve during the decade was third in 1974–75. Notable players who turned out for the club during this period included midfielders Giancarlo De Sisti and Francesco Rocca. The dawning of a newly successful era in Roma's footballing history was brought in with another Coppa Italia victory, they defeated Torino on penalties to win the 1979–80 edition. Roma would reach heights in the league which they had not touched since the 1940s by narrowly and controversially finishing as runners-up to Juventus in 1980–81. Former Milan player Nils Liedholm was the manager at the time, with players such as Bruno Conti, Agostino Di Bartolomei, Roberto Pruzzo and Falcão. The second Scudetto did not elude Roma for much longer. In 1982–83, the Roman club won the title for the first time in 41 years, amidst celebrations in the capital. The following season, Roma finished as runners-up in Italy and collected a Coppa Italia title, they also finished as runners-up in the European Cup final of 1984. The European Cup final with Liverpool ended in a 1–1 draw with a goal from Pruzzo, but Roma eventually lost in the penalty shoot-out. Roma's successful run in the 1980s would finish with a runners-up spot in 1985–86 and a Coppa Italia victory, beating out Sampdoria 3–2. After, a comparative decline began in the league, one of the few league highs from the following period being a third-place finish in 1987–88. At the start of the 1990s, the club was involved in an all-Italian UEFA Cup final, where they lost 2–1 to Internazionale in 1991. The same season, the club won its seventh Coppa Italia and ended runners-up to Sampdoria in the Supercoppa Italiana. Aside from finishing runners-up to Torino in a Coppa Italia final, the rest of the decade was largely sub-par in the history of Roma, particularly in the league, where the highest they could manage was fourth in 1997–98. The early 1990s also saw the emergence of homegrown striker Francesco Totti, who would go on to be an important member of the team and the club's iconic captain. In the new millennium 2000–2010 Roma returned to form in the 2000s, beginning the decade in great style by winning their third Serie A title in 2000–01. The Scudetto was won on the last day of the season after defeating Parma 3–1, edging Juventus by two points. The club's captain, Francesco Totti, was a large reason for the title victory and he would become one of the main heroes in the club's history, going on to break several club records. Other important players during this period included Aldair, Cafu, Gabriel Batistuta and Vincenzo Montella. The club attempted to defend the title in the following season but ended as runners-up to Juventus by one point. This would be the start of Roma finishing as runners-up several times in both Serie A and Coppa Italia during the 2000s – they lost out 4–2 to Milan in the Coppa Italia final of 2003 and lost to Milan again by finishing second in Serie A for the 2003–04 season. The club also re-capitalized several time in 2003–04 season. In November 2003, €37.5 million was injected by "Roma 2000" to cover the half-year loss and loss carried from previous year. and again on 30 June for €44.57 million. Through stock market, a further €19.850 million of new shares issued, and at the year end, the share capital was €19.878 million, which was unchanged . The following season also saw the departure of Walter Samuel for €25 million and Emerson for €28 million, which decreased the strength of the squad. The Giallorossi therefore finished in eighth place, one of the worst of recent seasons. On 9 July 2006, Roma's Francesco Totti, Daniele De Rossi and Simone Perrotta were part of the Italy national team which defeated France in the 2006 FIFA World Cup Final. A Serie A scandal was revealed during 2006; Roma were not one of the teams involved. After punishments were issued, Roma was re-classified as runners-up for 2005–06, the same season they finished second in the Coppa Italia losing to Internazionale. In the two following seasons, 2006–07 and 2007–08, Roma finished as Serie A runners-up, meaning that in the 2000s, Roma have finished in the top two positions more than any other decade in their history. Meanwhile, in the UEFA Champions League during both of these seasons, they reached the quarter-finals before going out to Manchester United. Despite the sloppy start in the 2008–09 Champions League, Roma managed to reach the knockout stage ahead of Chelsea in their group, thus finishing for the first time in their history as winners of the group stage. However, the Giallorossi, would lose to Arsenal in the knockout stage on penalty kicks, ending their Champions League campaign. After a disappointing start to the 2009–10 season, Claudio Ranieri replaced Luciano Spalletti as head coach. At the time of the switch, Roma lay bottom of the Serie A table after losses to Juventus and Genoa. Despite this setback, Roma would later embark on an incredible unbeaten streak of 24 matches in the league – with the last of the 24 being a 2–1 win over rivals Lazio, whereby Roma came from 1–0 down at half-time to defeat their city rivals after Ranieri courageously substituted both Totti and De Rossi at the interval. The Giallorossi were on top of the table at one point, before a loss to Sampdoria later in the season. Roma would finish runners-up to Internazionale yet again in both Serie A and the Coppa Italia. This rounded out a highly successful decade in Roma's history, following somewhat mediocre results of the 1990s. During the 2000s, Roma had finally recaptured the Scudetto, two Coppa Italia trophies, and their first two Supercoppa Italiana titles. Other notable contributions to the club's history have included a return to the Champions League quarter-finals (in the 2006–07 and 2007–08 editions) since 1984, six runners up positions in the league, four Coppa Italia finals and three Supercoppa finals – marking Roma's greatest ever decade. The "AS Roma SPV LLC" era In the summer of 2010, the Sensi family agreed to relinquish their control of Roma as part of a debt-settlement agreement. This brought an end to the presidential reign of the Sensi family, who had presided over the club since 1993. Until a new owner was appointed, Rosella Sensi would continue her directorial role of the club. The 2010–11 season had once again seen Roma start off with mixed fortunes on both a domestic and European level. These included losses against Cagliari, Brescia and a 2–0 defeat against Bayern Munich in the group stages of the Champions League, a match which saw manager Claudio Ranieri openly criticized by his players. However, these were accompanied by victories against Inter and a sensational victory against Bayern Munich in the return fixture, which saw Roma fight back from 0–2 down at half-time to emerge as 3–2 winners. Following a series of poor results that saw Roma engage in a winless-streak of five consecutive matches, Ranieri resigned as head coach in February 2011, and former striker Vincenzo Montella was appointed as caretaker manager until the end of the season. It was also during this season that Roma icon Francesco Totti scored his 200th Serie A goal against Fiorentina in March 2011, becoming only the sixth player to achieve such a feat. On 16 April 2011, the takeover contract was closed with an American investment group led by Thomas R. DiBenedetto, with James Pallotta, Michael Ruane and Richard D'Amore as partners. DiBenedetto became the 22nd president of the club, serving from 27 September 2011 to 27 August 2012 and was succeeded by Pallotta. The new intermediate holding company, NEEP Roma Holding, was 60% owned by American's "AS Roma SPV, LLC" and the rest (40%) was retained by the creditor of Sensi, UniCredit. In turn, NEEP owned all shares held previously by Sensi (about 67%) with the rest free float in the stock market. UniCredit later disinvested NEEP Roma Holding to sell to "AS Roma SPV, LLC" and Pallotta. The new ownership immediately went into effect by making significant changes in the club, hiring Walter Sabatini as director of football and former Spanish international and Barcelona B coach Luis Enrique as manager. The first high-profile player signings from the duo were attacking midfielder Erik Lamela from River Plate, forward Bojan from Barcelona, goalkeeper Maarten Stekelenburg from Ajax and unattached defender Gabriel Heinze. The club also sold and released defender John Arne Riise, goalkeeper Doni and forwards Jérémy Ménez and Mirko Vučinić. At the financial level, the company had recapitalised for more than €100 million, the last recapitalisation occurring in the early 2000s. Roma, however, was eliminated from 2011–12 UEFA Europa League play-off round. After the formal takeover on 18 August, Roma bought forward Dani Osvaldo, midfielders Miralem Pjanić and Fernando Gago and defender Simon Kjær, as well as youngster Fabio Borini, which cost the club more than €40 million. In 2012, Pallotta became the new president. The 2012–13 pre-season started with the June hiring of former manager Zdeněk Zeman. Zeman replaced Luis Enrique who resigned at the end of the 2011–12 season. Luis Enrique's lone season reign had seen the disappointing loss to Slovan Bratislava in the UEFA Europa League, as well as the inability to qualify for international competitions for the 2012–13 season. Roma eventually finished seventh, losing the Europa League chase to rivals Lazio, Napoli and Internazionale. Zeman brought back his high-scoring 4–3–3 formation and his hard working ethic which successfully guided former team Pescara to the Serie A. However, he was sacked on 2 February 2013. He was replaced by caretaker manager Aurelio Andreazzoli, whose reign saw the continuation of a disappointing season, with the team ending up in sixth place in Serie A, while also losing 1–0 to rivals Lazio in the Coppa Italia final. As a result, Roma missed out on European competition for the second-straight season. On 12 June 2013, Pallotta announced that Rudi Garcia had been appointed the new manager of Roma. He enjoyed a fantastic start to his Roma career, winning his first ten matches (an all-time Serie A record) including a 2–0 derby win against Lazio, a 0–3 victory away to Internazionale and a 2–0 home win over title rivals Napoli. During this run, Roma scored 24 times while conceding just once, away to Parma. The 2013–14 season saw one of Roma's best in Serie A, the club tallying an impressive 85 points and finishing second to Juventus, who won the league with a record-breaking 102 points. Roma's defence was significantly better than in previous seasons, with only 25 goals conceded and a total of 21 clean sheets, including nine in their first ten matches. In 2014–15, Roma finished second behind Juventus for the second consecutive season after a poor run of form in 2015. At the end of season, the club was sanctioned for loss making and breaking UEFA Financial Fair Play Regulations. On 12 August 2015, and after months of speculation during the 2015 summer transfer market, Roma acquired Bosnia international, Edin Džeko, from Manchester City on a €4 million loan with an €11 million option to buy clause, which is activated on 1 October 2015, making a star striker permanent addition to the club. Džeko made his Serie A debut ten days later, playing the entirety of a 1–1 draw at Hellas Verona, and scored his first goal for the club in his second appearance on 30 August, the winning goal in the 79th minute to defeat reigning champions Juventus 2–1 at the Stadio Olimpico. On 13 January 2016, Garcia was sacked after a run of one win in seven Serie A matches. Luciano Spalletti was subsequently appointed manager of Roma for his second spell. On 21 February, Totti publicly criticised Spalletti due to his own lack of playing-time since returning from injury. Consequently, Totti was subsequently dropped by Spalletti for Roma's 5–0 win over Palermo, with the decision causing an uproar among the fans and in the media. After their initial disagreements, Spalletti began to use Totti as an immediate impact substitute, which proved to be an effective decision, as the Roma number 10 rediscovered his form and contributed with four goals and one assist after coming off the bench in five consecutive Serie A matches. As a result, Spalletti was able to lead Roma from a mid-table spot to a third-place finish in Serie A, clinching the UEFA Champions League play-off spot. During the summer of 2016, Roma lost star midfielder Miralem Pjanić to rivals Juventus to improve its financial position. On 27 April 2017, Roma appointed Sevilla FC's Sporting director Monchi as their new sporting director. On 28 May 2017, on the last day of the 2016–17 season, Francesco Totti made his 786th and final appearance for Roma before retiring in a 3–2 home win against Genoa, coming on as a substitute for Mohamed Salah in the 54th minute and received a standing ovation from the fans. The win saw Roma finish second in Serie A behind Juventus. Following Totti's retirement, Daniele De Rossi became club captain and signed a new two-year contract. On 13 June 2017, former Roma player Eusebio Di Francesco was appointed as the club's new manager, replacing Spalletti, who had left the club to take charge of Internazionale. Roma again lost a key player during the summer transfer window, with Mohamed Salah joining Liverpool F.C. for a fee of 39m euro (£34m). Several new players joined the club, including a club-record deal for Sampdoria striker Patrik Schick and Aleksandar Kolarov in a €5m (£4.4m) move from Manchester City Di Francesco also brought in Gregoire Defrel from his previous club Sassuolo in an €18 million deal. On 5 December 2017 the Stadio della Roma project, after experiencing five years worth of delays due to conflicting interests from various parties in the Roman city government, was given the go-ahead to begin construction. It is slated to open in time for the 2020–21 season and will replace the Stadio Olimpico as Roma's ground. In the 2017–18 UEFA Champions League group stage, Roma were drawn in a tough Group C with Chelsea, Atletico Madrid and Qarabag. However, after performing strongly in the group stage, including a 3–0 home victory against Chelsea, Roma progressed to the knockout stages as Group C winners after Diego Perotti's lone goal in a 1–0 win over Qarabag. After progressing past Shakhtar Donetsk in the Round of 16, Roma were drawn against FC Barcelona in the quarter-finals. On 4 April 2018, Roma were defeated 4–1 away to Barcelona at the Camp Nou in the first leg, after own goals from Daniele De Rossi and Kostas Manolas, although Edin Džeko provided a late glimmer of hope by scoring an away goal. On 10 April, Roma pulled off a sensational second-leg comeback at the Stadio Olimpico to beat Barcelona 3-0 and reach the Champions League semi-finals on away goals. An early goal from Edin Džeko and a 58th-minute penalty from De Rossi had left the Giallorossi needing to score one more goal to progress before Manolas scored the crucial third goal, heading in at the near post with eight minutes remaining. By doing so, Roma became only the third team in Champions League history to overturn a first-leg defeat of three goals or more and reached the final four of the competition for the first time since 1984. Roma were subsequently drawn against Liverpool, the team that had defeated them in the 1984 European Cup Final, in the semi-finals. Liverpool would go on to win the tie 7–6 on aggregate. Roma ended the 2017–2018 season in 3rd place on 77 points, qualifying for the following season's Champions League. In the summer of 2018, Roma were busy in the transfer market, in large parts thanks to the €83 million they received from reaching the Champions League semi finals, as well as selling Alisson for a world record €72 million including bonuses to Liverpool. In a very busy window, Roma spent €150 million to sign the likes of Shick, Nzonzi, Pastore, Kluivert, Defrel and more, while selling their 2 starting midfielders from the previous season, Nainggolan and Strootman. The 2018-2019 Serie A season was a disappointment for Roma as they spent the first half of the season bouncing between 6th and 10th place. This was compounded by the fact that many of the new signings failed to make an impact. After Roma were eliminated against Porto 4–3 on aggregate in the Champions League round of 16, Di Francesco was sacked and replaced by Claudio Ranieri who served as caretaker manager. The following day, sporting director Monchi stepped down. He stated: “I left Roma for a simple reason: I realized that the owners’ ideas were

that many of the new signings failed to make an impact. After Roma were eliminated against Porto 4–3 on aggregate in the Champions League round of 16, Di Francesco was sacked and replaced by Claudio Ranieri who served as caretaker manager. The following day, sporting director Monchi stepped down. He stated: “I left Roma for a simple reason: I realized that the owners’ ideas were different to mine. The President thought it was better to go to the right, I thought it was better to go to the left”. James Pallotta hit back saying “I gave him [Monchi] 100 percent control to appoint the coach he wanted, to employ the assistant coaches and the performance staff, to manage the scouting and to bring in the players he wanted. If you look at our results and our performances, it's clear that this hasn't worked. He asked me to trust him and let him do it his way. We gave him complete control and now we have more injuries than we’ve ever had and are in danger of missing out on finishing in the top 3 for the first time since 2014." In Monchi's 2 years at the club, he spent £208 million on 21 signings, however within 2 years, only 12 of his signings remained at the club. Under Ranieri results improved, however Roma failed to qualify for the Champions League, finishing in 6th place on 66 points. On 11 June 2019, Roma appointed Paulo Fonseca as their new manager. In December 2019, AS Roma SPV LLC was in final negotiations to sell the team for $872 million, to American businessman Dan Friedkin, however negotiations stalled during the COVID-19 pandemic. On 6 August 2020, Friedkin signed the preliminary contract to agree to pay $591 million to Pallotta, the main shareholder of Roma. On May 4, 2021, the club announced that Fonseca would leave at the end of the 2020–21 season. The same day, Jose Mourinho was announced as Fonseca's replacement on a 3-year contract set to begin in the 2021–22 season. Colours, kits, crests and nicknames Roma's colours of carmine red with a golden yellow trim represents the traditional colours of Rome, the official seal of the Comune di Roma features the same colours. The gold and the purple-red represent Roman imperial dignity. White shorts and black socks are usually worn with the red shirt. However, in particularly high key matches, the shorts and socks are the same colour as the home shirt. The kit itself was originally worn by Roman Football Club; one of the three clubs who merged to form the current incarnation in 1927. Because of the colours they wear, Roma are often nicknamed i giallorossi meaning the yellow-reds. Roma's away kit is traditionally white, with a third kit changing colour from time to time. A popular nickname for the club is "i lupi" ("the wolves") – the animal has always featured on the club's badge in different forms throughout their history. The emblem of the team is currently the one which was used when the club was first founded. It portrays the female wolf with the two infant brothers Romulus and Remus, illustrating the myth of the founding of Rome, superimposed on a bipartite golden yellow over a maroon red shield. In the myth from which the club takes their nickname and logo, the twins (sons of Mars and Rhea Silvia) are thrown into the river Tiber by their uncle Amulius. A she-wolf then saved the twins and looked after them. Eventually, the two twins took revenge on Amulius before falling-out themselves – Romulus killed Remus and was thus made king of a new city named in his honour, Rome. Kit suppliers and shirt sponsors Facilities Stadiums The first sport facility Roma used was the Motovelodromo Appio, previously used by Alba-Audace. Roma only played the 1927–28 season there until they moved to Campo Testaccio the very next season. Campo Testaccio was used through 1929 to 1940. The team moved later to the Stadio Nazionale del PNF, where they spent 13 years before moving once again. In the 1953–54 season, Roma moved to the Olympic arena, Stadio Olimpico, which it shares with Lazio. The arena has undergone several changes over the years. The most significant change took place in the nineties when Stadio Olimpico was demolished and then reconstructed for the 1990 FIFA World Cup, held in Italy. Roma have played almost every season since 1953–54, with exception of the 1989–90 seasons due to the reconstruction of Stadio Olimpico. That year, Roma played its home matches at Stadio Flaminio. On 30 December 2012, Roma club president James Pallotta announced the construction of a new stadium in the Tor di Valle area of Rome. The new stadium, Stadio della Roma, will have a capacity of 52,500 spectators. On 2 February 2017, the Region of Lazio and the mayor of Rome rejected the proposal to build a new stadium. However, it was later approved on 24 February after final review of the stadium's design adjustments. In August 2017, the stadium suffered another delay, forcing Roma to renew their lease with the Stadio Olimpico until 2020. It is presently uncertain when the stadium will open. On 5 December 2017 the Stadio della Roma project, after experiencing five years worth of delays due to conflicting interests from various parties in the Roman city government, was given the go-ahead to begin construction, with the stadium expected to be ready to open for the 2020–21 season. On 26 February 2021, it was announced that the stadium project was halted. List of stadiums used by the club 1927–1928 Motovelodromo Appio 1929–1940 Campo Testaccio 1940–1953 Stadio Nazionale del PNF 1953– Stadio Olimpico (1989–1990 Stadio Flaminio due to renovations on Olimpico) Trigoria A sports centre located in Trigoria at kilometre 3600 in south-east of Rome was purchased on 22 July 1977 by then club president Gaetano Anzalone. It was opened on 23 July 1979 as Anzalone's final act as president. The complex had its first expansion in 1984 when the club was handled by Dino Viola and another in 1998 under the chairmanship of Franco Sensi. The centre's official name is the Fulvio Bernardini di Trigoria, named after club icon Fulvio Bernardini. On 4 September 2019, the Trigoria training ground began to serve also as a private school named 'Liceo Scientifico Sportivo A.S. Roma' exclusively educating only the team's youth players in a renovated building on the training ground premises. 80 students are currently enrolled in the school which features its own cafeteria and gym. The centre is also known for hosting the Argentina national team during the 1990 FIFA World Cup, held in Italy. Supporters Roma is the fifth-most supported football club in Italy – behind Juventus, Internazionale, A.C. Milan and Napoli – with approximately 7% of Italian football fans supporting the club, according to the Doxa Institute-L'Espresso's research of April 2006. Historically, the largest section of Roma supporters in the city of Rome have come from the inner-city, especially Testaccio. The traditional ultras group of the club was Commando Ultrà Curva Sud commonly abbreviated as CUCS. This group was founded by the merger of many smaller groups and was considered one of the most historic in the history of European football. However, by the mid-1990s, CUCS had been usurped by rival factions and ultimately broke up. Since that time, the Curva Sud of the Stadio Olimpico has been controlled by more right-wing groups, including A.S. Roma Ultras, Boys and Giovinezza, among others. However, the oldest group, Fedayn, is apolitical, and politics is not the main identity of Roma, just a part of their overall identity. Besides ultras groups, it is believed Roma fans support the left as opposed to Lazio supporters, which are notoriously proud of their right-wing affiliation. In November 2015, Roma's ultras and their Lazio counterparts boycotted Roma's 1–0 victory in the Derby della Capitale in protest at new safety measures imposed at the Stadio Olimpico. The measures – imposed by Rome's prefect, Franco Gabrielli – had involved plastic glass dividing walls being installed in both the Curva Sud and Curva Nord, splitting the sections behind each goal in two. Both sets of ultras continued their protests for the rest of the season, including during Roma's 4–1 victory in the return fixture. Lazio's ultras returned to the Curva Nord for Roma's 1–4 victory in December 2016, but the Roma ultras continue to boycott matches. The most known club anthem is "Roma (non-si discute, si ama)", also known as "Roma Roma", by singer Antonello Venditti. The title roughly means, "Roma is not to be questioned, it is to be loved," and it is sung before each match. The song "Grazie Roma", by the same singer, is played at the end of victorious home matches. Recently, the main riff of The White Stripes' song "Seven Nation Army" has also become widely popular at matches. Rivalries In Italian football, Roma is a club with many rivalries; first and foremost is their rivalry with Lazio, the club with whom they share the Stadio Olimpico. The derby between the two is called the Derby della Capitale, it is amongst the most heated and emotional footballing rivalries in the world. The fixture has seen some occasional instances of violence in the past, including the death of Lazio fan Vincenzo Paparelli in 1979–80 as a result of an emergency flare fired from the Curva Sud, and the abandonment of a match in March 2004 following unfounded rumours of a fatality which led to violence outside the stadium. Against Napoli, Roma also compete in the Derby del Sole, meaning the "Derby of the Sun". Nowadays, fans also consider other Juventus (a rivalry born especially in the 1980s), Milan, Atalanta (since 1984, when friendly relations between the two clubs' ultras deteriorated), and Internazionale (increased in recent years) among their rivals, as they are often competitors for the top four spots in the league table and qualification for the UEFA Champions League. Hooliganism Rivalries with other teams have escalated into serious violence. A group of ultras who label themselves the Fedayn — 'the devotees' — after a group of long-forgotten Iranian guerrilla fighters are regarded to be responsible for the organised hooliganism. In 2014 Daniele De Santis, a Roma ultra, was convicted of shooting Ciro Esposito and two others during clashes with Napoli fans who were in Rome for their club's Coppa Italia final against Fiorentina. Esposito died of his wounds. De Santis was sentenced to 26 years in prison, later reduced to 16 years on appeal. Roma ultras have displayed banners celebrating De Santis. There have been multiple instances of Roma ultras attacking supporters of foreign clubs when playing in Rome. These attacks have regularly featured the Roma ultras using knives, poles, flares, bottles and stones on unarmed foreign supporters, resulting in multiple hospitalisations. Home games against Liverpool in 1984 and 2001, Middlesbrough in 2006, Manchester United in 2007, Arsenal in 2009, Tottenham Hotspur in 2012, and Chelsea in 2017 have all resulted in multiple stabbings and other injuries to foreign supporters. In 2018 Roma ultras travelling to an away game at Liverpool attacked home supporters, resulting in a home supporter being critically injured.

had pushed through amendments of the PLO's goals, which were seen as a step towards compromise with Israel. Abu Nidal then moved to Ba'athist Iraq where he set up the ANO, which soon began a vicious string of terrorist attacks. It hasn't clearly defined its ideological position, but was clearly opposed to any form of compromise or negotiation with Israel. It is known as one of the most uncompromisingly militant Palestinian groups ever. It had an estimated membership of several hundred, but its strength today is not known. ANO attacks The ANO carried out attacks in 20 countries, killing or injuring almost 1,650 persons. Targets include the United States, the United Kingdom, France, Israel, moderate Palestinians, the PLO, and various Arab and European countries. The group has not attacked Western targets since the late 1980s. Major attacks included the Rome and Vienna Airport Attacks in December 1985, the Neve Shalom synagogue in Istanbul and the Pan Am Flight 73 hijacking in Karachi in September 1986, and the City of Poros day-excursion ship attack in Greece in July 1988. The ANO has been especially noted for its uncompromising stance on negotiation with Israel, treating anything less than all-out military struggle against Israel as treachery. This led the group to perform numerous attacks against the PLO, which had made clear it accepted a negotiated solution to the conflict. Fatah-RC is believed to have assassinated PLO deputy chief Abu Iyad and PLO security chief Abul Hul in Tunis in January 1991. It assassinated a Jordanian diplomat in Lebanon in January 1994 and has been linked to the killing of the PLO representative there. Noted PLO moderate Issam Sartawi was killed by the Fatah-RC in 1983. In the late 1970s, the group

City of Poros day-excursion ship attack in Greece in July 1988. The ANO has been especially noted for its uncompromising stance on negotiation with Israel, treating anything less than all-out military struggle against Israel as treachery. This led the group to perform numerous attacks against the PLO, which had made clear it accepted a negotiated solution to the conflict. Fatah-RC is believed to have assassinated PLO deputy chief Abu Iyad and PLO security chief Abul Hul in Tunis in January 1991. It assassinated a Jordanian diplomat in Lebanon in January 1994 and has been linked to the killing of the PLO representative there. Noted PLO moderate Issam Sartawi was killed by the Fatah-RC in 1983. In the late 1970s, the group also made a failed assassination attempt on the present Palestinian president and PLO chairman, Mahmoud Abbas. These attacks, and numerous others, led to the PLO issuing a death sentence in absentia against Abu Nidal.

neutrophils will degranulate, natural killer cells will release cytokines and cytotoxic molecules; that will ultimately result in destruction of the invading microbe. The activation of natural killer cells by antibodies initiates a cytotoxic mechanism known as antibody-dependent cell-mediated cytotoxicity (ADCC) – this process may explain the efficacy of monoclonal antibodies used in biological therapies against cancer. The Fc receptors are isotype-specific, which gives greater flexibility to the immune system, invoking only the appropriate immune mechanisms for distinct pathogens. Natural antibodies Humans and higher primates also produce "natural antibodies" that are present in serum before viral infection. Natural antibodies have been defined as antibodies that are produced without any previous infection, vaccination, other foreign antigen exposure or passive immunization. These antibodies can activate the classical complement pathway leading to lysis of enveloped virus particles long before the adaptive immune response is activated. Many natural antibodies are directed against the disaccharide galactose α(1,3)-galactose (α-Gal), which is found as a terminal sugar on glycosylated cell surface proteins, and generated in response to production of this sugar by bacteria contained in the human gut. Rejection of xenotransplantated organs is thought to be, in part, the result of natural antibodies circulating in the serum of the recipient binding to α-Gal antigens expressed on the donor tissue. Immunoglobulin diversity Virtually all microbes can trigger an antibody response. Successful recognition and eradication of many different types of microbes requires diversity among antibodies; their amino acid composition varies allowing them to interact with many different antigens. It has been estimated that humans generate about 10 billion different antibodies, each capable of binding a distinct epitope of an antigen. Although a huge repertoire of different antibodies is generated in a single individual, the number of genes available to make these proteins is limited by the size of the human genome. Several complex genetic mechanisms have evolved that allow vertebrate B cells to generate a diverse pool of antibodies from a relatively small number of antibody genes. Domain variability The chromosomal region that encodes an antibody is large and contains several distinct gene loci for each domain of the antibody—the chromosome region containing heavy chain genes (IGH@) is found on chromosome 14, and the loci containing lambda and kappa light chain genes (IGL@ and IGK@) are found on chromosomes 22 and 2 in humans. One of these domains is called the variable domain, which is present in each heavy and light chain of every antibody, but can differ in different antibodies generated from distinct B cells. Differences, between the variable domains, are located on three loops known as hypervariable regions (HV-1, HV-2 and HV-3) or complementarity-determining regions (CDR1, CDR2 and CDR3). CDRs are supported within the variable domains by conserved framework regions. The heavy chain locus contains about 65 different variable domain genes that all differ in their CDRs. Combining these genes with an array of genes for other domains of the antibody generates a large cavalry of antibodies with a high degree of variability. This combination is called V(D)J recombination discussed below. V(D)J recombination Somatic recombination of immunoglobulins, also known as V(D)J recombination, involves the generation of a unique immunoglobulin variable region. The variable region of each immunoglobulin heavy or light chain is encoded in several pieces—known as gene segments (subgenes). These segments are called variable (V), diversity (D) and joining (J) segments. V, D and J segments are found in Ig heavy chains, but only V and J segments are found in Ig light chains. Multiple copies of the V, D and J gene segments exist, and are tandemly arranged in the genomes of mammals. In the bone marrow, each developing B cell will assemble an immunoglobulin variable region by randomly selecting and combining one V, one D and one J gene segment (or one V and one J segment in the light chain). As there are multiple copies of each type of gene segment, and different combinations of gene segments can be used to generate each immunoglobulin variable region, this process generates a huge number of antibodies, each with different paratopes, and thus different antigen specificities. The rearrangement of several subgenes (i.e. V2 family) for lambda light chain immunoglobulin is coupled with the activation of microRNA miR-650, which further influences biology of B-cells. RAG proteins play an important role with V(D)J recombination in cutting DNA at a particular region. Without the presence of these proteins, V(D)J recombination would not occur. After a B cell produces a functional immunoglobulin gene during V(D)J recombination, it cannot express any other variable region (a process known as allelic exclusion) thus each B cell can produce antibodies containing only one kind of variable chain. Somatic hypermutation and affinity maturation Following activation with antigen, B cells begin to proliferate rapidly. In these rapidly dividing cells, the genes encoding the variable domains of the heavy and light chains undergo a high rate of point mutation, by a process called somatic hypermutation (SHM). SHM results in approximately one nucleotide change per variable gene, per cell division. As a consequence, any daughter B cells will acquire slight amino acid differences in the variable domains of their antibody chains. This serves to increase the diversity of the antibody pool and impacts the antibody's antigen-binding affinity. Some point mutations will result in the production of antibodies that have a weaker interaction (low affinity) with their antigen than the original antibody, and some mutations will generate antibodies with a stronger interaction (high affinity). B cells that express high affinity antibodies on their surface will receive a strong survival signal during interactions with other cells, whereas those with low affinity antibodies will not, and will die by apoptosis. Thus, B cells expressing antibodies with a higher affinity for the antigen will outcompete those with weaker affinities for function and survival allowing the average affinity of antibodies to increase over time. The process of generating antibodies with increased binding affinities is called affinity maturation. Affinity maturation occurs in mature B cells after V(D)J recombination, and is dependent on help from helper T cells. Class switching Isotype or class switching is a biological process occurring after activation of the B cell, which allows the cell to produce different classes of antibody (IgA, IgE, or IgG). The different classes of antibody, and thus effector functions, are defined by the constant (C) regions of the immunoglobulin heavy chain. Initially, naive B cells express only cell-surface IgM and IgD with identical antigen binding regions. Each isotype is adapted for a distinct function; therefore, after activation, an antibody with an IgG, IgA, or IgE effector function might be required to effectively eliminate an antigen. Class switching allows different daughter cells from the same activated B cell to produce antibodies of different isotypes. Only the constant region of the antibody heavy chain changes during class switching; the variable regions, and therefore antigen specificity, remain unchanged. Thus the progeny of a single B cell can produce antibodies, all specific for the same antigen, but with the ability to produce the effector function appropriate for each antigenic challenge. Class switching is triggered by cytokines; the isotype generated depends on which cytokines are present in the B cell environment. Class switching occurs in the heavy chain gene locus by a mechanism called class switch recombination (CSR). This mechanism relies on conserved nucleotide motifs, called switch (S) regions, found in DNA upstream of each constant region gene (except in the δ-chain). The DNA strand is broken by the activity of a series of enzymes at two selected S-regions. The variable domain exon is rejoined through a process called non-homologous end joining (NHEJ) to the desired constant region (γ, α or ε). This process results in an immunoglobulin gene that encodes an antibody of a different isotype. Specificity designations An antibody can be called monospecific if it has specificity for the same antigen or epitope, or bispecific if they have affinity for two different antigens or two different epitopes on the same antigen. A group of antibodies can be called polyvalent (or unspecific) if they have affinity for various antigens or microorganisms. Intravenous immunoglobulin, if not otherwise noted, consists of a variety of different IgG (polyclonal IgG). In contrast, monoclonal antibodies are identical antibodies produced by a single B cell. Asymmetrical antibodies Heterodimeric antibodies, which are also asymmetrical antibodies, allow for greater flexibility and new formats for attaching a variety of drugs to the antibody arms. One of the general formats for a heterodimeric antibody is the "knobs-into-holes" format. This format is specific to the heavy chain part of the constant region in antibodies. The "knobs" part is engineered by replacing a small amino acid with a larger one. It fits into the "hole", which is engineered by replacing a large amino acid with a smaller one. What connects the "knobs" to the "holes" are the disulfide bonds between each chain. The "knobs-into-holes" shape facilitates antibody dependent cell mediated cytotoxicity. Single chain variable fragments (scFv) are connected to the variable domain of the heavy and light chain via a short linker peptide. The linker is rich in glycine, which gives it more flexibility, and serine/threonine, which gives it specificity. Two different scFv fragments can be connected together, via a hinge region, to the constant domain of the heavy chain or the constant domain of the light chain. This gives the antibody bispecificity, allowing for the binding specificities of two different antigens. The "knobs-into-holes" format enhances heterodimer formation but doesn't suppress homodimer formation. To further improve the function of heterodimeric antibodies, many scientists are looking towards artificial constructs. Artificial antibodies are largely diverse protein motifs that use the functional strategy of the antibody molecule, but aren't limited by the loop and framework structural constraints of the natural antibody. Being able to control the combinational design of the sequence and three-dimensional space could transcend the natural design and allow for the attachment of different combinations of drugs to the arms. Heterodimeric antibodies have a greater range in shapes they can take and the drugs that are attached to the arms don't have to be the same on each arm, allowing for different combinations of drugs to be used in cancer treatment. Pharmaceuticals are able to produce highly functional bispecific, and even multispecific, antibodies. The degree to which they can function is impressive given that such a change of shape from the natural form should lead to decreased functionality. History The first use of the term "antibody" occurred in a text by Paul Ehrlich. The term Antikörper (the German word for antibody) appears in the conclusion of his article "Experimental Studies on Immunity", published in October 1891, which states that, "if two substances give rise to two different Antikörper, then they themselves must be different". However, the term was not accepted immediately and several other terms for antibody were proposed; these included Immunkörper, Amboceptor, Zwischenkörper, substance sensibilisatrice, copula, Desmon, philocytase, fixateur, and Immunisin. The word antibody has formal analogy to the word antitoxin and a similar concept to Immunkörper (immune body in English). As such, the original construction of the word contains a logical flaw; the antitoxin is something directed against a toxin, while the antibody is a body directed against something. The study of antibodies began in 1890 when Emil von Behring and Kitasato Shibasaburō described antibody activity against diphtheria and tetanus toxins. Von Behring and Kitasato put forward the theory of humoral immunity, proposing that a mediator in serum could react with a foreign antigen. His idea prompted Paul Ehrlich to propose the side-chain theory for antibody and antigen interaction in 1897, when he hypothesized that receptors (described as "side-chains") on the surface of cells could bind specifically to toxins – in a "lock-and-key" interaction – and that this binding reaction is the trigger for the production of antibodies. Other researchers believed that antibodies existed freely in the blood and, in 1904, Almroth Wright suggested that soluble antibodies coated bacteria to label them for phagocytosis and killing; a process that he named opsoninization. In the 1920s, Michael Heidelberger and Oswald Avery observed that antigens could be precipitated by antibodies and went on to show that antibodies are made of protein. The biochemical properties of antigen-antibody-binding interactions were examined in more detail in the late 1930s by John Marrack. The next major advance was in the 1940s, when Linus Pauling confirmed the lock-and-key theory proposed by Ehrlich by showing that the interactions between antibodies and antigens depend more on their shape than their chemical composition. In 1948, Astrid Fagraeus discovered that B cells, in the form of plasma cells, were responsible for generating antibodies. Further work concentrated on characterizing the structures of the antibody proteins. A major advance in these structural studies was the discovery in the early 1960s by Gerald Edelman and Joseph Gally of the antibody light chain, and their realization that this protein is the same as the Bence-Jones protein described in 1845 by Henry Bence Jones. Edelman went on to discover that antibodies are composed of disulfide bond-linked heavy and light chains. Around the same time, antibody-binding (Fab) and antibody tail (Fc) regions of IgG were characterized by Rodney Porter. Together, these scientists deduced the structure and complete amino acid sequence of IgG, a feat for which they were jointly awarded the 1972 Nobel Prize in Physiology or Medicine. The Fv fragment was prepared and characterized by David Givol. While most of these early studies focused on IgM and IgG, other immunoglobulin isotypes were identified in the 1960s: Thomas Tomasi discovered secretory antibody (IgA); David S. Rowe and John L. Fahey discovered IgD; and Kimishige Ishizaka and Teruko Ishizaka discovered IgE and showed it was a class of antibodies involved in allergic reactions. In a landmark series of experiments beginning in 1976, Susumu Tonegawa showed that genetic material can rearrange itself to form the vast array of available antibodies. Medical applications Disease diagnosis Detection of particular antibodies is a very common form of medical diagnostics, and applications such as serology depend on these methods. For example, in biochemical assays for disease diagnosis, a titer of antibodies directed against Epstein-Barr virus or Lyme disease is estimated from the blood. If those antibodies are not present, either the person is not infected or the infection occurred a very long time ago, and the B cells generating these specific antibodies have naturally decayed. In clinical immunology, levels of individual classes of immunoglobulins are measured by nephelometry (or turbidimetry) to characterize the antibody profile of patient. Elevations in different classes of immunoglobulins are sometimes useful in determining the cause of liver damage in patients for whom the diagnosis is unclear. For example, elevated IgA indicates alcoholic cirrhosis, elevated IgM indicates viral hepatitis and primary biliary cirrhosis, while IgG is elevated in viral hepatitis, autoimmune hepatitis and cirrhosis. Autoimmune disorders can often be traced to antibodies that bind the body's own epitopes; many can be detected through blood tests. Antibodies directed against red blood cell surface antigens in immune mediated hemolytic anemia are detected with the Coombs test. The Coombs test is also used for antibody screening in blood transfusion preparation and also for antibody screening in antenatal women. Practically, several immunodiagnostic methods based on detection of complex antigen-antibody are used to diagnose infectious diseases, for example ELISA, immunofluorescence, Western blot, immunodiffusion, immunoelectrophoresis, and magnetic immunoassay. Antibodies raised against human chorionic gonadotropin are used in over the counter pregnancy tests. New dioxaborolane chemistry enables radioactive fluoride (18F) labeling of antibodies, which allows for positron emission tomography (PET) imaging of cancer. Disease therapy Targeted monoclonal antibody therapy is employed to treat diseases such as rheumatoid arthritis, multiple sclerosis, psoriasis, and many forms of cancer including non-Hodgkin's lymphoma, colorectal cancer, head and neck cancer and breast cancer. Some immune deficiencies, such as X-linked agammaglobulinemia and hypogammaglobulinemia, result in partial or complete lack of antibodies. These diseases are often treated by inducing a short-term form of immunity called passive immunity. Passive immunity is achieved through the transfer of ready-made antibodies in the form of human or animal serum, pooled immunoglobulin or monoclonal antibodies, into the affected individual. Prenatal therapy Rh factor, also known as Rh D antigen, is an antigen found on red blood cells; individuals that are Rh-positive (Rh+) have this antigen on their red blood cells and individuals that are Rh-negative (Rh–) do not. During normal childbirth, delivery trauma or complications during pregnancy, blood from a fetus can enter the mother's system. In the case of an Rh-incompatible mother and child, consequential blood mixing may sensitize an Rh- mother to the Rh antigen on the blood

below. V(D)J recombination Somatic recombination of immunoglobulins, also known as V(D)J recombination, involves the generation of a unique immunoglobulin variable region. The variable region of each immunoglobulin heavy or light chain is encoded in several pieces—known as gene segments (subgenes). These segments are called variable (V), diversity (D) and joining (J) segments. V, D and J segments are found in Ig heavy chains, but only V and J segments are found in Ig light chains. Multiple copies of the V, D and J gene segments exist, and are tandemly arranged in the genomes of mammals. In the bone marrow, each developing B cell will assemble an immunoglobulin variable region by randomly selecting and combining one V, one D and one J gene segment (or one V and one J segment in the light chain). As there are multiple copies of each type of gene segment, and different combinations of gene segments can be used to generate each immunoglobulin variable region, this process generates a huge number of antibodies, each with different paratopes, and thus different antigen specificities. The rearrangement of several subgenes (i.e. V2 family) for lambda light chain immunoglobulin is coupled with the activation of microRNA miR-650, which further influences biology of B-cells. RAG proteins play an important role with V(D)J recombination in cutting DNA at a particular region. Without the presence of these proteins, V(D)J recombination would not occur. After a B cell produces a functional immunoglobulin gene during V(D)J recombination, it cannot express any other variable region (a process known as allelic exclusion) thus each B cell can produce antibodies containing only one kind of variable chain. Somatic hypermutation and affinity maturation Following activation with antigen, B cells begin to proliferate rapidly. In these rapidly dividing cells, the genes encoding the variable domains of the heavy and light chains undergo a high rate of point mutation, by a process called somatic hypermutation (SHM). SHM results in approximately one nucleotide change per variable gene, per cell division. As a consequence, any daughter B cells will acquire slight amino acid differences in the variable domains of their antibody chains. This serves to increase the diversity of the antibody pool and impacts the antibody's antigen-binding affinity. Some point mutations will result in the production of antibodies that have a weaker interaction (low affinity) with their antigen than the original antibody, and some mutations will generate antibodies with a stronger interaction (high affinity). B cells that express high affinity antibodies on their surface will receive a strong survival signal during interactions with other cells, whereas those with low affinity antibodies will not, and will die by apoptosis. Thus, B cells expressing antibodies with a higher affinity for the antigen will outcompete those with weaker affinities for function and survival allowing the average affinity of antibodies to increase over time. The process of generating antibodies with increased binding affinities is called affinity maturation. Affinity maturation occurs in mature B cells after V(D)J recombination, and is dependent on help from helper T cells. Class switching Isotype or class switching is a biological process occurring after activation of the B cell, which allows the cell to produce different classes of antibody (IgA, IgE, or IgG). The different classes of antibody, and thus effector functions, are defined by the constant (C) regions of the immunoglobulin heavy chain. Initially, naive B cells express only cell-surface IgM and IgD with identical antigen binding regions. Each isotype is adapted for a distinct function; therefore, after activation, an antibody with an IgG, IgA, or IgE effector function might be required to effectively eliminate an antigen. Class switching allows different daughter cells from the same activated B cell to produce antibodies of different isotypes. Only the constant region of the antibody heavy chain changes during class switching; the variable regions, and therefore antigen specificity, remain unchanged. Thus the progeny of a single B cell can produce antibodies, all specific for the same antigen, but with the ability to produce the effector function appropriate for each antigenic challenge. Class switching is triggered by cytokines; the isotype generated depends on which cytokines are present in the B cell environment. Class switching occurs in the heavy chain gene locus by a mechanism called class switch recombination (CSR). This mechanism relies on conserved nucleotide motifs, called switch (S) regions, found in DNA upstream of each constant region gene (except in the δ-chain). The DNA strand is broken by the activity of a series of enzymes at two selected S-regions. The variable domain exon is rejoined through a process called non-homologous end joining (NHEJ) to the desired constant region (γ, α or ε). This process results in an immunoglobulin gene that encodes an antibody of a different isotype. Specificity designations An antibody can be called monospecific if it has specificity for the same antigen or epitope, or bispecific if they have affinity for two different antigens or two different epitopes on the same antigen. A group of antibodies can be called polyvalent (or unspecific) if they have affinity for various antigens or microorganisms. Intravenous immunoglobulin, if not otherwise noted, consists of a variety of different IgG (polyclonal IgG). In contrast, monoclonal antibodies are identical antibodies produced by a single B cell. Asymmetrical antibodies Heterodimeric antibodies, which are also asymmetrical antibodies, allow for greater flexibility and new formats for attaching a variety of drugs to the antibody arms. One of the general formats for a heterodimeric antibody is the "knobs-into-holes" format. This format is specific to the heavy chain part of the constant region in antibodies. The "knobs" part is engineered by replacing a small amino acid with a larger one. It fits into the "hole", which is engineered by replacing a large amino acid with a smaller one. What connects the "knobs" to the "holes" are the disulfide bonds between each chain. The "knobs-into-holes" shape facilitates antibody dependent cell mediated cytotoxicity. Single chain variable fragments (scFv) are connected to the variable domain of the heavy and light chain via a short linker peptide. The linker is rich in glycine, which gives it more flexibility, and serine/threonine, which gives it specificity. Two different scFv fragments can be connected together, via a hinge region, to the constant domain of the heavy chain or the constant domain of the light chain. This gives the antibody bispecificity, allowing for the binding specificities of two different antigens. The "knobs-into-holes" format enhances heterodimer formation but doesn't suppress homodimer formation. To further improve the function of heterodimeric antibodies, many scientists are looking towards artificial constructs. Artificial antibodies are largely diverse protein motifs that use the functional strategy of the antibody molecule, but aren't limited by the loop and framework structural constraints of the natural antibody. Being able to control the combinational design of the sequence and three-dimensional space could transcend the natural design and allow for the attachment of different combinations of drugs to the arms. Heterodimeric antibodies have a greater range in shapes they can take and the drugs that are attached to the arms don't have to be the same on each arm, allowing for different combinations of drugs to be used in cancer treatment. Pharmaceuticals are able to produce highly functional bispecific, and even multispecific, antibodies. The degree to which they can function is impressive given that such a change of shape from the natural form should lead to decreased functionality. History The first use of the term "antibody" occurred in a text by Paul Ehrlich. The term Antikörper (the German word for antibody) appears in the conclusion of his article "Experimental Studies on Immunity", published in October 1891, which states that, "if two substances give rise to two different Antikörper, then they themselves must be different". However, the term was not accepted immediately and several other terms for antibody were proposed; these included Immunkörper, Amboceptor, Zwischenkörper, substance sensibilisatrice, copula, Desmon, philocytase, fixateur, and Immunisin. The word antibody has formal analogy to the word antitoxin and a similar concept to Immunkörper (immune body in English). As such, the original construction of the word contains a logical flaw; the antitoxin is something directed against a toxin, while the antibody is a body directed against something. The study of antibodies began in 1890 when Emil von Behring and Kitasato Shibasaburō described antibody activity against diphtheria and tetanus toxins. Von Behring and Kitasato put forward the theory of humoral immunity, proposing that a mediator in serum could react with a foreign antigen. His idea prompted Paul Ehrlich to propose the side-chain theory for antibody and antigen interaction in 1897, when he hypothesized that receptors (described as "side-chains") on the surface of cells could bind specifically to toxins – in a "lock-and-key" interaction – and that this binding reaction is the trigger for the production of antibodies. Other researchers believed that antibodies existed freely in the blood and, in 1904, Almroth Wright suggested that soluble antibodies coated bacteria to label them for phagocytosis and killing; a process that he named opsoninization. In the 1920s, Michael Heidelberger and Oswald Avery observed that antigens could be precipitated by antibodies and went on to show that antibodies are made of protein. The biochemical properties of antigen-antibody-binding interactions were examined in more detail in the late 1930s by John Marrack. The next major advance was in the 1940s, when Linus Pauling confirmed the lock-and-key theory proposed by Ehrlich by showing that the interactions between antibodies and antigens depend more on their shape than their chemical composition. In 1948, Astrid Fagraeus discovered that B cells, in the form of plasma cells, were responsible for generating antibodies. Further work concentrated on characterizing the structures of the antibody proteins. A major advance in these structural studies was the discovery in the early 1960s by Gerald Edelman and Joseph Gally of the antibody light chain, and their realization that this protein is the same as the Bence-Jones protein described in 1845 by Henry Bence Jones. Edelman went on to discover that antibodies are composed of disulfide bond-linked heavy and light chains. Around the same time, antibody-binding (Fab) and antibody tail (Fc) regions of IgG were characterized by Rodney Porter. Together, these scientists deduced the structure and complete amino acid sequence of IgG, a feat for which they were jointly awarded the 1972 Nobel Prize in Physiology or Medicine. The Fv fragment was prepared and characterized by David Givol. While most of these early studies focused on IgM and IgG, other immunoglobulin isotypes were identified in the 1960s: Thomas Tomasi discovered secretory antibody (IgA); David S. Rowe and John L. Fahey discovered IgD; and Kimishige Ishizaka and Teruko Ishizaka discovered IgE and showed it was a class of antibodies involved in allergic reactions. In a landmark series of experiments beginning in 1976, Susumu Tonegawa showed that genetic material can rearrange itself to form the vast array of available antibodies. Medical applications Disease diagnosis Detection of particular antibodies is a very common form of medical diagnostics, and applications such as serology depend on these methods. For example, in biochemical assays for disease diagnosis, a titer of antibodies directed against Epstein-Barr virus or Lyme disease is estimated from the blood. If those antibodies are not present, either the person is not infected or the infection occurred a very long time ago, and the B cells generating these specific antibodies have naturally decayed. In clinical immunology, levels of individual classes of immunoglobulins are measured by nephelometry (or turbidimetry) to characterize the antibody profile of patient. Elevations in different classes of immunoglobulins are sometimes useful in determining the cause of liver damage in patients for whom the diagnosis is unclear. For example, elevated IgA indicates alcoholic cirrhosis, elevated IgM indicates viral hepatitis and primary biliary cirrhosis, while IgG is elevated in viral hepatitis, autoimmune hepatitis and cirrhosis. Autoimmune disorders can often be traced to antibodies that bind the body's own epitopes; many can be detected through blood tests. Antibodies directed against red blood cell surface antigens in immune mediated hemolytic anemia are detected with the Coombs test. The Coombs test is also used for antibody screening in blood transfusion preparation and also for antibody screening in antenatal women. Practically, several immunodiagnostic methods based on detection of complex antigen-antibody are used to diagnose infectious diseases, for example ELISA, immunofluorescence, Western blot, immunodiffusion, immunoelectrophoresis, and magnetic immunoassay. Antibodies raised against human chorionic gonadotropin are used in over the counter pregnancy tests. New dioxaborolane chemistry enables radioactive fluoride (18F) labeling of antibodies, which allows for positron emission tomography (PET) imaging of cancer. Disease therapy Targeted monoclonal antibody therapy is employed to treat diseases such as rheumatoid arthritis, multiple sclerosis, psoriasis, and many forms of cancer including non-Hodgkin's lymphoma, colorectal cancer, head and neck cancer and breast cancer. Some immune deficiencies, such as X-linked agammaglobulinemia and hypogammaglobulinemia, result in partial or complete lack of antibodies. These diseases are often treated by inducing a short-term form of immunity called passive immunity. Passive immunity is achieved through the transfer of ready-made antibodies in the form of human or animal serum, pooled immunoglobulin or monoclonal antibodies, into the affected individual. Prenatal therapy Rh factor, also known as Rh D antigen, is an antigen found on red blood cells; individuals that are Rh-positive (Rh+) have this antigen on their red blood cells and individuals that are Rh-negative (Rh–) do not. During normal childbirth, delivery trauma or complications during pregnancy, blood from a fetus can enter the mother's system. In the case of an Rh-incompatible mother and child, consequential blood mixing may sensitize an Rh- mother to the Rh antigen on the blood cells of the Rh+ child, putting the remainder of the pregnancy, and any subsequent pregnancies, at risk for hemolytic disease of the newborn. Rho(D) immune globulin antibodies are specific for human RhD antigen. Anti-RhD antibodies are administered as part of a prenatal treatment regimen to prevent sensitization that may occur when a Rh-negative mother has a Rh-positive fetus. Treatment of a mother with Anti-RhD antibodies prior to and immediately after trauma and delivery destroys Rh antigen in the mother's system from the fetus. It is important to note that this occurs before the antigen can stimulate maternal B cells to "remember" Rh antigen by generating memory B cells. Therefore, her humoral immune system will not make anti-Rh antibodies, and will not attack the Rh antigens of the current or subsequent babies. Rho(D) Immune Globulin treatment prevents sensitization that can lead to Rh disease, but does not prevent or treat the underlying disease itself. Research applications Specific antibodies are produced by injecting an antigen into a mammal, such as a mouse, rat, rabbit, goat, sheep, or horse for large quantities of antibody. Blood isolated from these animals contains polyclonal antibodies—multiple antibodies that bind to the same antigen—in the serum, which can now be called antiserum. Antigens are also injected into chickens for generation of polyclonal antibodies in egg yolk. To obtain antibody that is specific for a single epitope of an antigen, antibody-secreting lymphocytes are isolated from the animal and immortalized by fusing them with a cancer cell line. The fused cells are called hybridomas, and will continually grow and secrete antibody in culture. Single hybridoma cells are isolated by dilution cloning to generate cell clones that all produce the same antibody; these antibodies are called monoclonal antibodies. Polyclonal and monoclonal antibodies are often purified using Protein A/G or antigen-affinity chromatography. In research, purified antibodies are used in many applications. Antibodies for research applications can be found directly from antibody suppliers, or through use of a specialist search engine. Research antibodies are most commonly used to identify and locate intracellular and extracellular proteins. Antibodies are used in flow cytometry to differentiate cell types by the proteins they express; different types of cell express different combinations of cluster of differentiation molecules on their surface, and produce different intracellular and secretable proteins. They are also used in immunoprecipitation to separate proteins and anything bound to them (co-immunoprecipitation) from other molecules in a cell lysate, in Western blot analyses to identify proteins separated by electrophoresis, and in immunohistochemistry or immunofluorescence to examine protein expression in tissue sections or to locate proteins within cells with the assistance of a microscope. Proteins can also be detected and quantified with antibodies, using ELISA and ELISpot techniques. Antibodies used in research are some of the most powerful, yet most problematic reagents with a tremendous number of factors that must be controlled in any experiment including cross reactivity, or the antibody recognizing multiple epitopes and affinity, which can vary widely depending on experimental conditions such as pH, solvent, state of tissue etc. Multiple attempts have been made to improve both the way that researchers validate antibodies and ways in which they report on antibodies. Researchers using antibodies in their work need to record them correctly in order to allow their research to be reproducible (and therefore tested, and qualified by other researchers). Less than half of research antibodies referenced in academic papers can be easily identified. Papers published in F1000 in 2014 and 2015 provide researchers with a guide for reporting research antibody use. The RRID paper, is co-published in 4 journals that implemented the RRIDs Standard for research resource citation, which draws data from the antibodyregistry.org as the source of antibody identifiers (see also group at Force11). Regulations Production and testing Traditionally, most antibodies are produced by hybridoma cell lines through immortalization of antibody-producing cells by chemically-induced fusion with myeloma cells. In some cases, additional fusions with other lines have created "triomas" and "quadromas". The manufacturing process should be appropriately described and validated. Validation studies should at least include: The demonstration that the process is able to produce in good quality (the process should be validated) The efficiency of the antibody purification (all impurities and virus must be eliminated) The characterization of purified antibody (physicochemical characterization, immunological properties, biological activities, contaminants, ...) Determination of the virus clearance studies Before clinical trials Product safety testing: Sterility (bacteria and fungi), in vitro and in vivo testing for adventitious viruses, murine retrovirus testing..., product safety data needed before the initiation of feasibility trials in serious or immediately life-threatening conditions, it serves to evaluate dangerous potential of the product. Feasibility testing: These are pilot studies whose objectives include, among others, early characterization of safety and initial proof of concept in a small specific patient population (in vitro or in vivo testing). Preclinical studies Testing cross-reactivity of antibody: to highlight unwanted interactions (toxicity) of antibodies with previously characterized tissues. This study can be performed in vitro (reactivity of the antibody or immunoconjugate should be determined with a quick-frozen adult tissues) or in vivo (with appropriates animal models). Preclinical pharmacology and toxicity testing: preclinical safety testing of antibody is designed to identify possible toxicity in humans, to estimate the likelihood and severity of potential adverse events in humans, and to identify a safe starting dose and dose escalation, when possible. Animal toxicity studies: Acute toxicity testing, repeat-dose toxicity testing, long-term toxicity testing Pharmacokinetics and pharmacodynamics testing: Use for determinate clinical dosages, antibody activities, evaluation of the potential clinical effects Structure prediction and computational antibody design The importance of antibodies in health care and the biotechnology industry demands knowledge of their structures at high resolution. This information is used for protein engineering, modifying the antigen binding affinity, and identifying an epitope, of a given antibody. X-ray crystallography is one commonly used method for determining antibody structures. However, crystallizing an antibody is often laborious and time-consuming. Computational approaches provide a cheaper and faster alternative to crystallography, but their results are more equivocal, since they do not produce empirical structures. Online web servers such as Web Antibody Modeling (WAM) and Prediction of Immunoglobulin Structure (PIGS) enables computational modeling of antibody variable regions. Rosetta Antibody is a novel antibody FV region structure prediction server, which incorporates sophisticated techniques to minimize CDR loops and optimize the relative orientation of the light and heavy chains, as well as homology models that predict successful docking of antibodies with their unique antigen. However, describing an antibody's binding site using only one single static structure limits the understanding and characterization of the antibody's function and properties. To improve antibody structure prediction and to take the strongly correlated CDR loop and interface movements into account, antibody paratopes should be described as interconverting states in solution with varying probabilities. The ability to describe the antibody through binding affinity to the antigen is supplemented by information on antibody structure and amino acid sequences for the purpose of patent claims. Several methods have been presented for computational design of antibodies based on the structural bioinformatics studies of antibody CDRs. There are a variety of methods used to sequence an antibody including Edman degradation, cDNA, etc.; albeit one of the most common modern uses for peptide/protein identification is liquid chromatography coupled with tandem mass spectrometry

arias become more conventional and commonplace in rhythm, while his scoring is hasty and crude, yet not without brilliance (L'Eraclea, 1700), the oboes and trumpets being frequently used, and the violins often playing in unison. The operas composed for Ferdinando de' Medici are lost; they might have given a more favourable idea of his style as his correspondence with the prince shows that they were composed with a very sincere sense of inspiration. Mitridate Eupatore, accounted his masterpiece, composed for Venice in 1707, contains music far in advance of anything that Scarlatti had written for Naples, both in technique and in intellectual power. The later Neapolitan operas (L'amor volubile e tiranno 1709; La principessa fedele 1710; Tigrane, 1714, &c.) are showy and effective rather than profoundly emotional; the instrumentation marks a great advance on previous work, since the main duty of accompanying the voice is thrown upon the string quartet, the harpsichord being reserved exclusively for the noisy instrumental ritornelli. In his opera Teodora (1697) he originated the use of the orchestral ritornello. His last group of operas, composed for Rome, exhibit a deeper poetic feeling, a broad and dignified style of melody, a strong dramatic sense, especially in accompanied recitatives, a device which he himself had been the first to use as early as 1686 (Olimpia vendicata) and a much more modern style of orchestration, the horns appearing for the first time, and being treated with striking effect. Besides the operas, oratorios (Agar et Ismaele esiliati, 1684; La Maddalena, 1685; La Giuditta, 1693; Christmas Oratorio, c. 1705; S. Filippo Neri, 1714; and others) and serenatas, which all exhibit a similar style, Scarlatti composed upwards of five hundred chamber-cantatas for solo voice. These represent the most intellectual type of chamber-music of their period, and it is to be regretted that they have remained almost entirely in manuscript, since a careful study of them is indispensable to anyone who wishes to form an adequate idea of Scarlatti's development. His few remaining Masses (the story of his having composed two hundred is hardly credible) and church music in general are comparatively unimportant, except the great Saint Cecilia Mass (1721), which is one of the first attempts at the style which reached its height in the great Masses of Johann Sebastian Bach and Ludwig van Beethoven. His instrumental music, though not without interest, is curiously antiquated as compared with his vocal works. Operas Recordings Philharmonia Baroque Orchestra, Nicholas McGegan. (2016). La Gloria di Primavera. Philharmonia Baroque Orchestra. Diana Moore, Suzana Ograjensek, Nicholas Phan, Clint van der Linde, Douglas Williams, Philharmonia Chorale. Akademie für alte Musik Berlin, René Jacobs. (2007). Griselda. Harmonia Mundi HMC 901805.07. Dorothea Röschmann, Lawrence Zazzo, Veronica Cangemi, Bernarda Fink, Silvia Tro Santafé, Kobie van Rensburg. Le Consert de l'Hostel Dieu. (2006). Il martirio di Sant'Orsola. Ligia digital: 0202176-07 Le parlement de musique. (2005). La Giuditta. Ambronay editions: AMY004 Ensemble Europa Galante. (2004). Oratorio per la Santissima Trinità. Virgin Classics: 5 45666 2 Academia Bizantina. (2004). Il Giardino di Rose. Decca: 470 650-2 DSA. Orqestra barocca di Sevilla . (2003). Colpa, Pentimento e Grazia. Harmonia Mundi: HMI 987045.46 Seattle Baroque. (2001). Agar et Ismaele Esiliati. Centaur: CRC 2664 Sedecia, re di Gerusalemme. 2000 . Gérard Lesne, Philippe Jaroussky, Virginie Pouchon, Mark Padmore, Peter Harvey, Il Seminario musicale. Virgin veritas, Erato Capella Palatina. (2000). Davidis pugna et victoria. Agora: AG 249.1 Akademie für alte Musik Berlin, René Jacobs. (1998). Il Primo Omicidio. Harmonia Mundi Fr. Dorothea Röschmann, Graciela Oddone, Richard Croft, René Jacobs, Bernarda Fink, Antonio Abete Ensemble Europa Galante. (1995). Humanita e Lucifero. Opus 111: OPS 30–129 Ensemble Europa Galante. (1993). La Maddalena. Opus 111: OPS 30–96 Allesandro Stradella Consort. (1992). Cantata natalizia Abramo, il tuo sembiante. Nuova era: 7117 I Musici. (1991). Concerto Grosso. Philips Classics Productions: 434 160-2 I Musici. William Bennett (Flute), Lenore Smith (Flute), Bernard Soustrot (Trumpet), Hans Elhorst (Oboe). (1961). 12 Sinfonie di concerto grosso Philips Box 6769 066 [9500 959 & 9500 960 – 2 vinyl discs] Emma Kirkby, soprano and Daniel Taylor, countertenor, with the Theatre of Early Music. (2005). Stabat Mater. ATMA Classique: ACD2 2237 Francis Colpron, recorder, with Les Boréades. (2007). Concertos for flute. ATMA Classique: ACD2 2521

in accompanied recitatives, a device which he himself had been the first to use as early as 1686 (Olimpia vendicata) and a much more modern style of orchestration, the horns appearing for the first time, and being treated with striking effect. Besides the operas, oratorios (Agar et Ismaele esiliati, 1684; La Maddalena, 1685; La Giuditta, 1693; Christmas Oratorio, c. 1705; S. Filippo Neri, 1714; and others) and serenatas, which all exhibit a similar style, Scarlatti composed upwards of five hundred chamber-cantatas for solo voice. These represent the most intellectual type of chamber-music of their period, and it is to be regretted that they have remained almost entirely in manuscript, since a careful study of them is indispensable to anyone who wishes to form an adequate idea of Scarlatti's development. His few remaining Masses (the story of his having composed two hundred is hardly credible) and church music in general are comparatively unimportant, except the great Saint Cecilia Mass (1721), which is one of the first attempts at the style which reached its height in the great Masses of Johann Sebastian Bach and Ludwig van Beethoven. His instrumental music, though not without interest, is curiously antiquated as compared with his vocal works. Operas Recordings Philharmonia Baroque Orchestra, Nicholas McGegan. (2016). La Gloria di Primavera. Philharmonia Baroque Orchestra. Diana Moore, Suzana Ograjensek, Nicholas Phan, Clint van der Linde, Douglas Williams, Philharmonia Chorale. Akademie für alte Musik Berlin, René Jacobs. (2007). Griselda. Harmonia Mundi HMC 901805.07. Dorothea Röschmann, Lawrence Zazzo, Veronica Cangemi, Bernarda Fink, Silvia Tro Santafé, Kobie van Rensburg. Le Consert de l'Hostel Dieu. (2006). Il martirio di Sant'Orsola. Ligia digital: 0202176-07 Le parlement de musique. (2005). La Giuditta. Ambronay editions: AMY004 Ensemble Europa Galante. (2004). Oratorio per la Santissima Trinità. Virgin Classics: 5 45666 2 Academia Bizantina. (2004). Il Giardino di Rose. Decca: 470 650-2 DSA. Orqestra barocca di Sevilla . (2003). Colpa, Pentimento e Grazia. Harmonia Mundi: HMI 987045.46 Seattle Baroque. (2001). Agar et Ismaele Esiliati. Centaur: CRC 2664 Sedecia, re di Gerusalemme. 2000 . Gérard Lesne, Philippe Jaroussky, Virginie Pouchon, Mark Padmore, Peter Harvey, Il Seminario musicale. Virgin veritas, Erato Capella Palatina. (2000). Davidis pugna et victoria. Agora: AG 249.1 Akademie für alte Musik Berlin, René Jacobs. (1998). Il Primo Omicidio. Harmonia Mundi Fr. Dorothea Röschmann, Graciela

built, and in 2002, the 6,000th, exceeding production of all of the previous DB series models. The DB7 range was revamped by the addition of more powerful V12 Vantage models in 1999, and in 2001, Aston Martin introduced the V12-engined flagship model called the Vanquish which succeeded the aging Virage (now called the V8 Coupé). At the North American International Auto Show in Detroit, Michigan in 2003, Aston Martin introduced the AMV8 Vantage concept car. Expected to have few changes before its introduction in 2005, the Vantage brought back the classic V8 engine to allow Aston Martin to compete in a larger market. 2003 also saw the opening of the Gaydon factory, the first purpose-built factory in Aston Martin's history. The facility is situated on a 22-hectare (55-acre) site of a former RAF V Bomber airbase, with an front building for offices, meeting rooms and customer reception, and a production building. Also introduced in 2003 was the DB9 coupé, which replaced the ten-year-old DB7. A convertible version of the DB9, the DB9 Volante, was introduced at the 2004 Detroit auto show. In October 2004, Aston Martin set up the dedicated AMEP engine production plant within the Ford Germany Niehl, Cologne plant. With the capacity to produce up to 5,000 engines a year by 100 specially trained personnel, like traditional Aston Martin engine production from Newport Pagnell, assembly of each unit was entrusted to a single technician from a pool of 30, with V8 and V12 variants assembled in under 20 hours. By bringing engine production back to within Aston Martin, the promise was that Aston Martin would be able to produce small runs of higher performance variants' engines. This expanded engine capacity allowed the entry-level V8 Vantage sports car to enter production at the Gaydon factory in 2006, joining the DB9 and DB9 Volante. In December 2003, Aston Martin announced it would return to motor racing in 2005. A new division was created, called Aston Martin Racing, which became responsible, together with Prodrive, for the design, development, and management of the DBR9 program. The DBR9 competes in the GT class in sports car races, including the world-famous 24 Hours of Le Mans. In 2006, an internal audit led Ford to consider divesting itself of parts of its Premier Automotive Group. After suggestions of selling Jaguar Cars, Land Rover, or Volvo Cars were weighed, Ford announced in August 2006 it had engaged UBS AG to sell all or part of Aston Martin at auction. 2007–2018: Private Limited Company On 12 March 2007, a consortium led by Prodrive chairman David Richards purchased Aston Martin for £475 million (US$848 million). The group included American investment banker John Singers and two Kuwaiti companies namely Investment Dar and Adeem Investment; Prodrive had no financial involvement in the deal. Ford kept a stake in Aston Martin valued at £40 million (US$70 million). To demonstrate the V8 Vantage's durability across hazardous terrain and promote the car in China, the first east–west crossing of the Asian Highway was undertaken between June and August 2007. A pair of Britons drove from Tokyo to Istanbul before joining the European motorway network for another to London. The promotion was so successful Aston Martin opened dealerships in Shanghai and Beijing within three months. On 19 July 2007, the Newport Pagnell plant rolled out the last of nearly 13,000 cars made there since 1955, a Vanquish S. The Tickford Street facility was converted and became the home of the Aston Martin Works classic car department which focuses on heritage sales, service, spares and restoration operations. UK production is now concentrated on the 22-hectare (55-acre) facility in Gaydon on the former RAF V Bomber airbase. In March 2008, Aston Martin announced a partnership with Magna Steyr to outsource manufacture of over 2,000 cars annually to Graz, Austria, reassuringly stating: "The continuing growth and success of Aston Martin is based upon Gaydon as the focal point and heart of the business, with the design and engineering of all Aston Martin products continuing to be carried out there." More dealers in Europe and the new pair in China brought the total to 120 in 28 countries. On 1 September 2008, Aston Martin announced the revival of the Lagonda marque, proposing a concept car to be shown in 2009 to coincide with the brand's 100th anniversary. The first production cars were slated for production in 2012. In December 2008, Aston Martin announced it would cut its workforce from 1,850 to 1,250 due to the economic recession. The first four-door Rapide grand tourers rolled out of the Magna Steyr factory in Graz, Austria in 2010. The contract manufacturer provides dedicated facilities to ensure compliance with the exacting standards of Aston Martin and other marques, including Mercedes-Benz. Then CEO of the company, Dr. Ulrich Bez had publicly speculated about outsourcing all of Aston Martin's operations with the exception of marketing. In September 2011, it was announced that production of the Rapide would be returned to Gaydon in the second half of 2012, restoring all of the company's automobile manufacture there. Italian private equity fund Investindustrial signed a deal on 6 December 2012 to buy a 37.5% stake in Aston Martin, investing £150 million as a capital increase. This was confirmed by Aston Martin in a press release on 7 December 2012. David Richards left Aston Martin in 2013, returning to concentrate on Prodrive. In April 2013, it was reported that Dr. Ulrich Bez would be leaving his role as the chief executive officer to take up a more ambassadorial position. On 2 September 2014, Aston Martin announced it had appointed the Nissan executive Andy Palmer as the new CEO with Ulrich Bez retaining a position as non-executive chairman. As sales had been declining from 2015, Aston Martin sought new customers (particularly wealthy female buyers) with introducing concept cars like the DBX SUV along with track focused cars like the Vulcan. According to Palmer, the troubles started when sales of the DB9 failed to generate sufficient fund to develop next-generation models which led to a downward spiral of declining sales and profitability. Palmer outlined that the company plans to develop two new platforms, add a crossover, refresh its supercar lineup and leverage its technology alliance with Daimler as part of its six-year plan to make the 100-year-old British brand consistently profitable. He stated, "In the first century we went bankrupt seven times. The second century is about making sure that is not the case." In preparation for its next-generation of sports cars, the company invested £20 million ($33.4 million) to expand its manufacturing plant in Gaydon. The expansion at the Gaydon plant includes a new chassis and pilot build facility, as well as an extension of the parts and logistics storage area, and new offices. In total, Aston Martin will add 10,000 square-meters (107,639 square-feet) to the plant. In 2014, Aston Martin suffered a pre-tax loss of £72 million, almost triple of the amount of 2013 selling 3,500 cars during the year, well below the 7,300 cars sold in 2007 and 4,200 sold in 2013 respectively. In March 2014, Aston Martin issued "payment in kind" notes of US$165 million, at 10.25% interest, in addition to the £304 million of senior secured notes at 9.25% issued in 2011. Aston Martin also had to secure an additional investment of £200 million from its shareholders to fund development of new models. It was reported that Aston Martin's pre-tax losses for 2016 increased by 27% to £162.8 million, the sixth year it continued to suffer a loss. In 2016, the company selected a 36-hectare (90-acre) site in St Athan, South Wales for its new factory. The Welsh facility was unanimously chosen by Aston's board despite fierce competition from other locations as far afield as the Americas, Eastern Europe, the Middle East, Europe, as well as two other sites in the UK, believed to be Bridgend and Birmingham. The facility featured three existing ‘super-hangars’ of MOD St Athan. Construction work of converting the hangars commenced in 2017. Aston Martin returned to profit in 2017 after selling over 5,000 cars. The company made a pre-tax profit of £87 million compared with a £163 million loss in 2016. 2017 also marked the return of production of the Newport Pagnell facility ten years after it originally ceased. 2013–present: Partnership with Mercedes-Benz Group In 2013, Aston Martin signed a deal with Mercedes-Benz Group (at the time known as Daimler), which owned a 5% stake in Aston Martin, to supply the next generation of Aston Martin cars with Mercedes-AMG engines. Mercedes-AMG also was to supply Aston Martin with electrical systems. This technical partnership was intended to support Aston Martin's launch of a new generation of models that would incorporate new technology and engines. The first model to sport the Mercedes-Benz technology was the DB11 announced at the 2016 Geneva Motor Show, which also has Mercedes-Benz electronics for the entertainment, navigation and other systems. It was also the first model to use Mercedes-AMG V8 engines. In October 2020, Mercedes confirmed it will increase its holding "in stages" from 5% to 20%. 2018–present: Listed on the London Stock Exchange After "completing a turnaround for the once perennially loss-making company that could now be valued at up to 5 billion pounds ($6.4 billion)," and now reporting a full-year pre-tax profit of £87 million (compared with a £163 million loss in 2016) Aston Martin in August 2018 announced plans to float the company at the London Stock Exchange as Aston Martin Lagonda Global Holdings plc. The company was the subject of an initial public offering on the London Stock Exchange on 3 October 2018. In the same year, Aston Martin opened a new vehicle dynamics test and development centre at Silverstone's Stowe Circuit alongside a new HQ in London. In June 2019, the company opened its new 36-hectare (90-acre) factory in St Athan for the production of its first-ever SUV the DBX. The factory was finally completed and officially opened on 6 December 2019. When full production begins in the second quarter of 2020, around 600 people will be employed at the factory, rising to 750 when peak production is reached. On 31 January 2020 it was announced that Canadian billionaire and investor Lawrence Stroll was leading a consortium who will pay £182 million in return for 25% stake in the company. The re-structuring includes a £318 million cash infusion through a new rights issue, generating a total of £500 million for the company. Stroll will also be named as chairman, replacing Penny Hughes. Swiss pharmaceutical magnate Ernesto Bertarelli and Mercedes-AMG Petronas Motorsport team principal and CEO Toto Wolff have also joined the consortium, acquiring 3.4% and 4.8% stakes, respectively. On 26 May 2020, Aston Martin announced that Andy Palmer had stepped down as CEO. Tobias Moers of Mercedes-AMG will succeed him starting 1 August, with Keith Stanton as interim chief operating officer. In June 2020, the company announced that it cut out 500 jobs as a result of the poor sales, an outcome of the COVID-19 pandemic lockdown. In March 2021, executive chairman Lawrence Stroll stated that the company plans on building electric vehicles by 2025. Notable events In August 2017, a 1956 Aston Martin DBR1/1 sold at a Sotheby's auction at the Pebble Beach, California Concours d'Elegance for US$22,550,000, which made it the most expensive British car ever sold at an auction, according to Sotheby's. The car was previously driven by Carroll Shelby and Stirling Moss. Models Pre-war cars 1921–1925 Aston Martin Standard Sports 1927–1932 Aston Martin First Series 1929–1932 Aston Martin International 1932–1932 Aston Martin International Le Mans 1932–1934 Aston Martin Le Mans 1933–1934 Aston Martin 12/50 Standard 1934–1936 Aston Martin Mk II 1934–1936 Aston Martin Ulster 1936–1940 Aston Martin 2-litre Speed Models (23 built) The last 8 were fitted with C-type bodywork 1937–1939 Aston Martin 15/98 Post-war cars 1948–1950 Aston Martin 2-Litre Sports (DB1) 1950–1953 Aston Martin DB2 1953–1957 Aston Martin DB2/4 1957–1959 Aston Martin DB Mark III 1958–1963 Aston Martin DB4 1961–1963 Aston Martin DB4 GT Zagato 1963–1965 Aston Martin DB5 1965–1966 Aston Martin Short Chassis Volante 1965–1969 Aston Martin DB6 1967–1972 Aston Martin DBS 1969–1989 Aston Martin V8 1977–1989 Aston Martin V8 Vantage 1986–1990 Aston Martin V8 Zagato 1989–1996 Aston Martin Virage/Virage Volante 1989–2000 Aston Martin Virage 1993–2000 Aston Martin Vantage 1996–2000 Aston Martin V8 Coupe/V8 Volante 1993–2003 Aston Martin DB7/DB7

in 1925 and Martin was forced to sell the company (Bamford had already left). Later that year, Bill Renwick, Augustus (Bert) Bertelli and investors including Lady Charnwood took control of the business. They renamed it Aston Martin Motors and moved it to the former Whitehead Aircraft Limited Hanworth works in Feltham. Renwick and Bertelli had been in partnership some years and had developed an overhead-cam four-cylinder engine using Renwick's patented combustion chamber design, which they had tested in an Enfield-Allday chassis. The only "Renwick and Bertelli" motor car made, it was known as "Buzzbox" and still survives. The pair had planned to sell their engine to motor manufacturers, but having heard that Aston Martin was no longer in production realised they could capitalise on its reputation to jump-start the production of a completely new car. Between 1926 and 1937 Bertelli was both technical director and designer of all new Aston Martins, since known as "Bertelli cars". They included the 1½-litre "T-type", "International", "Le Mans", "MKII" and its racing derivative, the "Ulster", and the 2-litre 15/98 and its racing derivative, the "Speed Model". Most were open two-seater sports cars bodied by Bert Bertelli's brother Enrico (Harry), with a small number of long-chassis four-seater tourers, dropheads and saloons also produced. Bertelli was a competent driver keen to race his cars, one of few owner/manufacturer/drivers. The "LM" team cars were very successful in national and international motor racing including at Le Mans. Financial problems reappeared in 1932. Aston Martin was rescued for a year by Lance Prideaux Brune before passing it on to Sir Arthur Sutherland. In 1936, Aston Martin decided to concentrate on road cars, producing just 700 until World War II halted work. Production shifted to aircraft components during the war. 1947–1972: David Brown In 1947, old-established (1860) privately owned Huddersfield gear and machine tools manufacturer David Brown Limited bought Aston Martin putting it under control of its Tractor Group. David Brown became Aston Martin's latest saviour. He also acquired without its factory Lagonda's business for its 2.6-litre W. O. Bentley-designed engine. Lagonda moved operations to Newport Pagnell and shared engines, resources and workshops. Aston Martin began to build the classic "DB" series of cars. In April 1950, they announced planned production of their Le Mans prototype to be called the DB2, followed by the DB2/4 in 1953, the DB2/4 MkII in 1955, the DB Mark III in 1957 and the Italian-styled 3.7 L DB4 in 1958. While these models helped Aston Martin establish a good racing pedigree, the DB4 stood out and yielded the famous DB5 in 1963. Aston stayed true to its grand touring style with the DB6 (1965–70), and DBS (1967–1972). The six-cylinder engines of these cars from 1954 up to 1965 were designed by Tadek Marek. 1972–1975: William Willson Aston Martin was often financially troubled. In 1972, David Brown paid off all its debts, said to be £5 million or more, and handed it for £101 to Company Developments, a Birmingham-based investment bank consortium chaired by accountant William Willson. More detail on this period may be read at Willson's biography. The worldwide recession, lack of working capital and the difficulties of developing an engine to meet California's exhaust emission requirements – it stopped the company's US sales – again pulled Aston Martin into receivership at the end of 1974. The company had employed 460 workers when the manufacturing plant closed. 1975–1981: Sprague and Curtis The receiver sold the business in April 1975 for £1.05 million to North American businessmen Peter Sprague of National Semiconductor, Toronto hotelier George Minden, and Jeremy Turner, a London businessman, who insisted to reporters Aston Martin remained a British controlled business. Sprague later claimed he had fallen in love with the factory, not the cars, the workforce's craftsmanship dedication and intelligence. At this point, he and Minden had brought in investor, Alan Curtis, a British office property developer together with George Flather, a retired Sheffield steel magnate. Six months later, in September 1975, the factory – shut-down the previous December – re-opened under its new owner as Aston Martin Lagonda Limited with 100 employees and plans to lift staff to 250 by the end of 1975. In January 1976, AML revealed that it now held orders for 150 cars for the US, 100 for other markets and another 80 from a Japanese importing agency. At the Geneva Motor Show, Fred Hartley, managing director and sales director for 13 years before that, announced he had resigned over "differences in marketing policy". The new owners pushed Aston Martin into modernising its line, introducing the V8 Vantage in 1977, the convertible Volante in 1978, and the one-off Bulldog styled by William Towns in 1980. Towns also styled the futuristic new Lagonda saloon, based on the V8 model. Curtis, who had a 42% stake in Aston Martin, also brought about a change in direction from the usual customers who were Aston Martin fanatics (fans) to successful young married businessmen. Prices had been increased by 25%. There was speculation that AML was about to buy Italian automobile manufacturer Lamborghini. At the end of the 1970s, there was widespread debate about running MG into the Aston Martin consortium. 85 Tory MPs formed themselves into a pressure group to get British Leyland to release their grip and hand it over. CH Industrials plc (car components) bought a 10% share in AML. But in July 1980, blaming a recession, AML cut back their workforce of 450 by more than 20% making those people redundant. 1981–1987: Victor Gauntlett In January 1981, there having been no satisfactory revival partners, Alan Curtis and Peter Sprague announced they had never intended to maintain a long-term financial stake in Aston Martin Lagonda and it was to be sold to Pace Petroleum's Victor Gauntlett. Sprague and Curtis pointed out that under their ownership AML finances had improved to where an offer for MG might have been feasible. Gauntlett bought a 12.5% stake in Aston Martin for £500,000 via Pace Petroleum in 1980, with Tim Hearley of CH Industrials taking a similar share. Pace and CHI took over as joint 50/50 owners at the beginning of 1981, with Gauntlett as executive chairman. Gauntlett also led the sales team, and after some development and publicity when the Lagonda became the world's fastest four-seater production car, was able to sell the car in Oman, Kuwait, and Qatar. In 1982, Aston Martin was granted a Royal Warrant of Appointment by the Prince of Wales. Understanding that it would take some time to develop new Aston Martin products, they created an engineering service subsidiary to develop automotive products for other companies. It was decided to use a trade name of Salmons & Son, their in-house coachbuilder, Tickford, which Aston Martin had bought in 1955. Tickford's name had been long associated with expensive high-quality carriages and cars along with their folding roofs. New products included a Tickford Austin Metro, a Tickford Ford Capri and even Tickford train interiors, particularly on the Jaguar XJS. Pace continued sponsoring racing events, and now sponsored all Aston Martin Owners Club events, taking a Tickford-engined Nimrod Group C car owned by AMOC President Viscount Downe, which came third in the Manufacturers Championship in both 1982 and 1983. It also finished seventh in the 1982 24 Hours of Le Mans race. However, sales of production cars were now at an all-time low of 30 cars produced in 1982. As trading became tighter in the petroleum market, and Aston Martin was requiring more time and money, Gauntlett agreed to sell Hays/Pace to the Kuwait Investment Office in September 1983. As Aston Martin required greater investment, he also agreed to sell his share holding to American importer and Greek shipping tycoon Peter Livanos, who invested via his joint venture with Nick and John Papanicolaou, ALL Inc. Gauntlett remained chairman of AML, 55% of the stake was owned by ALL, with Tickford a 50/50 venture between ALL and CHI. The uneasy relationship was ended when ALL exercised options to buy a larger share in AML; CHI's residual shares were exchanged for CHI's complete ownership of Tickford, which retained the development of existing Aston Martin projects. In 1984, Papanicolaou's Titan shipping business was in trouble so Livanos's father George bought out the Papanicolaou's shares in ALL, while Gauntlett again became a shareholder with a 25% holding in AML. The deal valued Aston Martin/AML at £2 million, the year it built its 10,000th car. Although as a result Aston Martin had to make 60 members of the workforce redundant, Gauntlett bought a stake in Italian styling house Zagato, and resurrected its collaboration with Aston Martin. In 1986, Gauntlett negotiated the return of the fictional British secret agent James Bond to Aston Martin. Cubby Broccoli had chosen to recast the character using actor Timothy Dalton, in an attempt to re-root the Bond-brand back to a more Sean Connery-like feel. Gauntlett supplied his personal pre-production Vantage for use in the filming of The Living Daylights, and sold a Volante to Broccoli for use at his home in America. Gauntlett turned down the role of a KGB colonel in the film, however: "I would have loved to have done it but really could not afford the time." 1987–2007: Ford Motor Company As Aston Martin needed funds to survive in the long term, Ford bought a 75% stake in the company in 1987, and bought the rest later. In May of that year, Victor Gauntlett and Prince Michael of Kent were staying at the home of Contessa Maggi, the wife of the founder of the original Mille Miglia, while watching the revival event. Another house guest was Walter Hayes, vice-president of Ford of Europe. Despite problems over the previous acquisition of AC Cars, Hayes saw the potential of the brand and the discussion resulted in Ford taking a share holding in September 1987. In 1988, having produced some 5,000 cars in 20 years, a revived economy and successful sales of limited edition Vantage, and 52 Volante Zagato coupés at £86,000 each; Aston Martin finally retired the ancient V8 and introduced the Virage range. Although Gauntlett was contractually to stay as chairman for two years, his racing interests took the company back into sports car racing in 1989 with limited European success. However, with engine rule changes for the 1990 season and the launch of the new Volante model, Ford provided the limited supply of Cosworth engines to the Jaguar cars racing team. As the entry-level DB7 would require a large engineering input, Ford agreed to take full control of Aston Martin, and Gauntlett handed over Aston Martin's chairmanship to Hayes in 1991. In 1992, the high-performance variant of the Virage called the Vantage was announced, and the following year Aston Martin renewed the DB range by announcing the DB7. By 1993, Ford had fully acquired the company after having built a stake in 1987. Ford placed Aston Martin in the Premier Automotive Group, invested in new manufacturing and ramped up production. In 1994, Ford opened a new factory at Banbury Road in Bloxham to manufacture the DB7. In 1995, Aston Martin produced a record 700 cars. Until the Ford era, cars had been produced by hand coachbuilding craft methods, such as the English wheel. In 1998, the 2,000th DB7 was built, and in 2002, the 6,000th, exceeding production of all of the previous DB series models. The DB7 range

in it." His stand was that state's rights superseded national law and he supported the idea of a Southern secession. This stand is made clear in his pamphlet of 1861, "State or Province, Bond or Free?" American Civil War In 1861, Pike penned the lyrics to "Dixie to Arms!" At the beginning of the war, Pike was appointed as Confederate envoy to Native American nations. In this capacity he negotiated several treaties, one of the most important being with Cherokee chief John Ross, which was concluded in 1861. At the time, Ross agreed to support the Confederacy, which promised the tribes a Native American state if it won the war. Ross later changed his mind and left Indian Territory, but the succeeding Cherokee government maintained the alliance. Pike was commissioned as a brigadier general in the Confederate States Army on November 22, 1861, and given a command in the Indian Territory. With Brig. Gen. Ben McCulloch, Pike trained three Confederate regiments of Indian cavalry, most of whom belonged to the "civilized tribes", whose loyalty to the Confederacy was variable. Although initially victorious at the Battle of Pea Ridge (Elkhorn Tavern) in March 1862, Pike's unit was defeated later in a counterattack, after falling into disarray. When Pike was ordered in May 1862 to send troops to Arkansas, he resigned in protest. As in the previous war, Pike came into conflict with his superior officers, at one time drafting a letter to Jefferson Davis complaining about his direct superior. After Pea Ridge, Pike was faced with charges that his Native American troops had scalped soldiers in the field. Maj. Gen. Thomas C. Hindman also charged Pike with mishandling of money and material, ordering his arrest. Both these charges were later found to be considerably lacking in evidence; nevertheless Pike, facing arrest, escaped into the hills of Arkansas, submitting his resignation from the Confederate States Army on July 12, 1862. He was arrested on November 3 on charges of insubordination and treason, and held briefly in Warren, Texas. His resignation was accepted on November 11, and he was allowed to return to Arkansas. As Union troops advanced toward the state capital in September 1863, the State Supreme Court retreated to Washington, Arkansas, which was made the new Confederate state capital. Associate Justice Hulbert F. Fairchild resigned because the new location was too far from his family, and Pike was appointed as his replacement. In the wake of the war, Pike moved to New York City, then for a short time to Canada. On June 24, 1865, Pike applied to President Andrew Johnson for a pardon, disowning his earlier interpretation of the U.S. Constitution. He said he now planned "to pursue the arts of peace, to practice my profession, to live among my books, and to labour to benefit my fellows and my race by other than political courses". President Johnson pardoned him on April 23, 1866. Later life During the Arkansas political conflict known as the Brooks-Baxter War, Pike was one of the lawyers to speak on behalf of Elisha Baxter. Death and legacy Pike died on April 2, 1891, in Charleston, South Carolina, at the age of 81, and was buried at Oak Hill Cemetery, despite the fact that he had left instructions for his body to be cremated. In 1944, his remains were moved to the House of the Temple, headquarters of the Southern Jurisdiction of the Scottish Rite. The House of the Temple contains numerous memorials and artifacts related to Pike, including his personal library. A memorial to Pike was erected in 1901 in the Judiciary Square neighborhood of Washington, D.C. He was the only Confederate military officer with an outdoor statue in Washington, D.C., and in 2019 Delegate Eleanor Holmes Norton called for its removal. On June 19, 2020, rioters tore down the statue and set it ablaze, in connection with the George Floyd protests because of Pike's association with the Confederacy and of his alleged association with the Ku Klux Klan. The Albert Pike Memorial Temple is an historic Masonic lodge in Little Rock, Arkansas; the structure is listed on the National Register of Historic Places. Controversies In the aftermath of the Civil War, as former Confederates found themselves barred from the ballot box, Pike remained deeply opposed to black suffrage, insisting that "the white race, and that race alone, shall govern this country. It is the only one that is fit to govern, and it is the only one that shall." Regarding membership in the Freemasons, Pike is quoted as saying, "Prince Hall Lodge was as regular a Lodge as any Lodge created by competent authority. It had a perfect right to establish other Lodges and make itself a Mother Lodge. I am not inclined to meddle in the matter. I took my obligations from white men, not from negroes. When I have to accept negroes as brothers or leave masonry, I shall leave it. Better let the thing drift"; even so, Pike was the personal friend of Thornton A. Jackson, Supreme Grand Commander of the United Supreme Council, Southern Jurisdiction, Prince Hall Affiliation and even gifted to Thornton his complete set of rituals for Prince Hall Scottish Rite Masonry to use. Various histories of the Ku Klux Klan published in the early 20th century identify Pike as a high-ranking official of the order. Walter Lynwood Fleming, in 1905's Ku Klux Klan: Its Origin, Growth and Disbandment, lists Pike as the Klan's "chief judicial officer". Susan Lawrence Davis, whose father was a founding member of the Klan in Alabama, writes in her sympathetic account titled Authentic History: Ku Klux Klan, 1865-1877, published in 1924, that Pike was personally chosen by Nathan Bedford Forrest to serve as the Klan's "Chief Judicial Officer" and to head the Klan in Arkansas. In 1939's Invisible Empire: The Story of the Ku Klux Klan, 1866-1871, Stanley Horn also reports that Forrest appointed Pike and credits him with a surge of local Klan activity in April 1868. Horn says that a pro-Klan poem, Death's Brigade, is attributed to Pike. Southern Agrarian poet John Gould Fletcher, who grew up in Little Rock in a house that Pike built, also believed Pike was the poem's author. However, Walter Lee Brown in his 1997 biography, found a lack of evidence that Pike was a member of the Klan. He cites Allen W. Trelease, author of 1971's White Terror: The Ku Klux Klan Conspiracy and Southern Reconstruction, as being doubtful of Pike's membership, as the offices Pike allegedly held are not mentioned in "The Prescript", the Klan constitution. Pike's only known writing on the Klan, an 1868 editorial in the Memphis Daily Appeal, indicates that his main problems lay not with its aims, but with its methods and leadership. Later in this editorial, he proposed "one great Order of Southern Brotherhood," a secret society which would have been a larger and more centrally organized version of the Klan: "If it were in our power, if it could be effected, we would unite every white man in the South, who is opposed to negro suffrage, into one great Order of Southern Brotherhood, with an organization complete, active, vigorous, in which a few should execute the concentrated will of all, and whose very existence should be concealed from all but its members." Selected works Indo-Aryan Deities and Worship as Contained in the Rig-Veda (1872) Morals and Dogma of the Ancient and Accepted Scottish Rite (1872) Book of the Words (1874) Reprints of Old Rituals (1879) Esoterika (1887) See also List of Arkansas adjutants general List of Confederate States Army generals List of Freemasons List of people from Boston List of people from Little Rock, Arkansas Footnotes References Further reading External links Albert Pike at Freemasonry.network Albert Pike and Lucifer at Freemasonry and the World (albertpike.wordpress.com) Albert Pike and Masonic Lodge Symbols at Allfreemasonry.com Albert Pike's Philosophy at Masonicinfo.com "Everybody's Dixie" by Albert Pike at Civilwarpoetry.org 1809 births 1891 deaths 19th-century American educators 19th-century American Episcopalians 19th-century American judges 19th-century American lawyers 19th-century American male writers 19th-century American newspaper editors 19th-century American non-fiction writers 19th-century occultists 19th-century United States Army personnel Activists from Arkansas Adjutants General of Arkansas American duellists American Freemasons American lawyers admitted to the practice of law by reading law American military personnel of the Mexican–American

a large amount of his time to developing the rituals of the order. He published a book called Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry in 1871, the first of several editions. This helped the Order grow during the nineteenth century. He also researched and wrote the seminal treatise Indo-Aryan Deities and Worship as Contained in the Rig-Veda. In the United States, Pike is still considered an eminent and influential Freemason, primarily in the Scottish Rite Southern Jurisdiction. Military service Mexican–American War When the Mexican–American War started, Pike joined the Arkansas Mounted Infantry Regiment and was commissioned as a company commander with the rank of captain in June 1846. With his regiment, he fought in the Battle of Buena Vista. Pike was discharged in June 1847. He and his commander, Colonel John Selden Roane, had several differences of opinion. This situation led finally to an "inconclusive" duel between Pike and Roane on July 29, 1847, near Fort Smith, Arkansas. Although several shots were fired in the duel, nobody was injured, and the two were persuaded by their seconds to discontinue it. After the war, Pike returned to the practice of law, moving to New Orleans for a time beginning in 1853. He wrote another book, Maxims of the Roman Law and Some of the Ancient French Law, as Expounded and Applied in Doctrine and Jurisprudence. Although unpublished, this book increased his reputation among his associates in law. He returned to Arkansas in 1857, gaining some amount of prominence in the legal field. At the Southern Commercial Convention of 1854, Pike said the South should remain in the Union and seek equality with the North, but if the South "were forced into an inferior status, she would be better out of the Union than in it." His stand was that state's rights superseded national law and he supported the idea of a Southern secession. This stand is made clear in his pamphlet of 1861, "State or Province, Bond or Free?" American Civil War In 1861, Pike penned the lyrics to "Dixie to Arms!" At the beginning of the war, Pike was appointed as Confederate envoy to Native American nations. In this capacity he negotiated several treaties, one of the most important being with Cherokee chief John Ross, which was concluded in 1861. At the time, Ross agreed to support the Confederacy, which promised the tribes a Native American state if it won the war. Ross later changed his mind and left Indian Territory, but the succeeding Cherokee government maintained the alliance. Pike was commissioned as a brigadier general in the Confederate States Army on November 22, 1861, and given a command in the Indian Territory. With Brig. Gen. Ben McCulloch, Pike trained three Confederate regiments of Indian cavalry, most of whom belonged to the "civilized tribes", whose loyalty to the Confederacy was variable. Although initially victorious at the Battle of Pea Ridge (Elkhorn Tavern) in March 1862, Pike's unit was defeated later in a counterattack, after falling into disarray. When Pike was ordered in May 1862 to send troops to Arkansas, he resigned in protest. As in the previous war, Pike came into conflict with his superior officers, at one time drafting a letter to Jefferson Davis complaining about his direct superior. After Pea Ridge, Pike was faced with charges that his Native American troops had scalped soldiers in the field. Maj. Gen. Thomas C. Hindman also charged Pike with mishandling of money and material, ordering his arrest. Both these charges were later found to be considerably lacking in evidence; nevertheless Pike, facing arrest, escaped into the hills of Arkansas, submitting his resignation from the Confederate States Army on July 12, 1862. He was arrested on November 3 on charges of insubordination and treason, and held briefly in Warren, Texas. His resignation was accepted on November 11, and he was allowed to return to Arkansas. As Union troops advanced toward the state capital in September 1863, the State Supreme Court retreated to Washington, Arkansas, which was made the new Confederate state capital. Associate Justice Hulbert F. Fairchild resigned because the new location was too far from his family, and Pike was appointed as his replacement. In the wake of the war, Pike moved to New York City, then for a short time to Canada. On June 24, 1865, Pike applied to President Andrew Johnson for a pardon, disowning his earlier interpretation of the U.S. Constitution. He said he now planned "to pursue the arts of peace, to practice my profession, to live among my books, and to labour to benefit my fellows and my race by other than political courses". President Johnson pardoned him on April 23, 1866. Later life During the Arkansas political conflict known as the Brooks-Baxter War, Pike was one of the lawyers to speak on behalf of Elisha Baxter. Death and legacy Pike died on April 2, 1891, in Charleston, South Carolina, at the age of 81, and was buried at Oak Hill Cemetery, despite the fact that he had left instructions for his body to be cremated. In 1944, his remains were moved to the House of the Temple, headquarters of the Southern Jurisdiction of the Scottish Rite. The House of the Temple contains numerous memorials and artifacts related to Pike, including his personal library. A memorial to Pike was erected in 1901 in the Judiciary Square neighborhood of Washington, D.C. He was the only Confederate military officer with an outdoor statue in Washington, D.C., and in 2019 Delegate Eleanor Holmes Norton called for its removal. On June 19, 2020, rioters tore down the statue and set it ablaze, in connection with the George Floyd protests because of Pike's association with the Confederacy and of his alleged association with the Ku Klux Klan. The Albert Pike Memorial Temple is an historic Masonic lodge in Little Rock, Arkansas; the structure is listed on the National Register of Historic Places. Controversies In the aftermath of the Civil War, as former Confederates found themselves barred from the ballot box, Pike remained deeply opposed to black suffrage, insisting that "the white race, and that race alone, shall govern this country. It is the only one that is fit to govern, and it is the only one that shall." Regarding membership in the Freemasons, Pike is quoted as saying, "Prince Hall Lodge was as regular a Lodge as any Lodge created by competent authority. It had a perfect right to establish other Lodges and make itself a Mother Lodge. I am not inclined to meddle in the matter. I took my obligations from white men, not from negroes. When I have to accept negroes as brothers or leave masonry, I shall leave it. Better let the thing drift"; even so, Pike was the personal friend of Thornton A. Jackson, Supreme Grand Commander of the United Supreme Council, Southern Jurisdiction, Prince Hall Affiliation and even gifted to Thornton his complete set of rituals for Prince Hall Scottish Rite Masonry to use. Various histories of the Ku Klux Klan published in the early 20th century identify Pike as a high-ranking official of the order. Walter Lynwood Fleming, in 1905's Ku Klux Klan: Its Origin, Growth and Disbandment, lists Pike as the Klan's "chief judicial officer". Susan Lawrence Davis, whose father was a founding member of the Klan in Alabama, writes in her sympathetic account titled Authentic History: Ku Klux Klan, 1865-1877, published in 1924, that Pike was personally chosen by Nathan Bedford Forrest to serve as the Klan's "Chief Judicial Officer" and to head the Klan in Arkansas. In 1939's Invisible Empire: The Story of the Ku Klux Klan, 1866-1871, Stanley Horn also reports that Forrest appointed Pike and credits him with a surge of local Klan activity in April 1868. Horn says that a

Shumway)/Rick Fusterman Tabitha St. Germain (as Paulina Gillis) – Augie/Rhonda Peggy Mahon – Flo Thick Wilson – Larson Petty/Bob Dan Hennessey – Sloop Rob Cowan – Skip Ellen-Ray Hennessy – Stella the Waitress Noam Zylberman – Curtis (1988) Michael Fantini – Curtis (1989) Episodes Season 1 (1988–89) Season 2 (1989) Home media The first seven episodes were released on DVD on May 30, 2006 in Region 1 from Lionsgate Home Entertainment in a single-disc release entitled ALF and The Beanstalk and Other Classic Fairy Tales. See also List of animated spinoffs from prime time shows References External links ALF (TV series) 1980s American animated television series

various characters from fairy tales. The fairy tale was usually altered for comedic effect in a manner akin to Jay Ward's "Fractured Fairy Tales". Each story typically spoofs a film genre, such as the "Cinderella" episode done as an Elvis Presley film. Some episodes featured a "fourth wall" effect where ALF is backstage preparing for the episode, and Rob Cowan would appear drawn as a TV executive (who introduced himself as "Roger Cowan, network executive") to try to brief ALF on how to improve this episode. For instance Cowan once told ALF who was readying for

them from Mazar-e-Sharif. In October 1997, Dostum returned from exile and retook charge. After Dostum briefly regained control of Mazar-e-Sharif, the Taliban returned in 1998 and he again fled to Turkey. Operation Enduring Freedom Dostum returned to Afghanistan in May 2001 to open up a new front before the U.S.-led campaign against the Taliban joined him, along with Commander Massoud, Ismail Khan and Mohammad Mohaqiq. On October 17, 2001, the CIA's eight-man Team Alpha, including Johnny Micheal Spann landed in the Dar-e-Suf to link up with Dostum. Three days later, the 12 members of Operational Detachment Alpha (ODA) 595 landed to join forces with Dostum and Team Alpha. Dostum, the Tajik commander |Atta Muhammad Nur| and their American allies defeated Taliban forces and recaptured Mazar-i-Sharif on November 10, 2001. On 24 November 2001, 15,000 Taliban soldiers were due to surrender after the Siege of Kunduz to American and Northern Alliance forces. Instead, 400 Al-Qaeda prisoners arrived just outside Mazar-i-Sharif. After they surrendered to Dostum, they were transferred to the 19th century garrison fortress, Qala-i-Jangi. The next day, while being questioned by CIA officers Johnny Micheal Spann and David Tyson, they used concealed weapons to revolt, triggering what became the Battle of Qala-i-Jangi against the guards. The uprising was finally brought under control after six days. Dasht-i-Leili massacre Dostum has been accused by Western journalists of responsibility for the suffocating or otherwise killing of Taliban prisoners in December 2001, with the number of victims estimated as 2,000. In 2009, Dostum denied the accusations and US President Obama ordered an investigation into the massacre. Karzai administration In the aftermath of Taliban's removal from northern Afghanistan, forces loyal to Dostum frequently clashed with Tajik forces loyal to Atta Muhammad Nur. Atta's men kidnapped and killed a number of Dostum's men, and constantly agitated to gain control of Mazar-e-Sharif. Through the political mediations of the Karzai administration, the International Security Assistance Force (ISAF) and the United Nations, the Dostum-Atta feud has gradually declined. They are now aligned in a new political party Dostum served as deputy defense minister the early period of the Karzai administration. On 20 May 2003, Dostum narrowly escaped an assassination attempt. He was often residing outside Afghanistan, mainly in Turkey. In February 2008, he was suspended after the apparent kidnapping and torture of a political rival. Time in Turkey Some media reports in 2008 stated earlier that Dostum was "seeking political asylum" in Turkey while others said he was exiled. One Turkish media outlet said Dostum was visiting after flying there with then Turkey's Foreign Minister Ali Babacan during a meeting of the Organization for Security and Cooperation in Europe (OSCE). On 16 August 2009, Dostum was asked to return from exile to Afghanistan to support President Hamid Karzai in his bid for re-election. He later flew by helicopter to his northern stronghold of Sheberghan, where he was greeted by thousands of his supporters in the local stadium. He subsequently made overtures to the United States, promising he could "destroy the Taliban and al Qaeda" if supported by the U.S., saying that "the U.S. needs strong friends like Dostum." Ghani administration On 7 October 2013, the day after filing his nomination for the 2014 general elections as running mate of Ashraf Ghani, Dostum issued a press statement that some news media were willing to welcome as "apologies": "Many mistakes were made during the civil war (…) It is time we apologize to the Afghan people who were sacrificed due to our negative policies (…) I apologize to the people who suffered from the violence and civil war (…)". Dostum was directly chosen as First Vice President of Afghanistan in the April–June 2014 Afghan presidential election, next to Ashraf Ghani as president and Sarwar Danish as second vice president. In July 2016, Human Rights Watch accused Abdul Rashid Dostum's National Islamic Movement of Afghanistan of killing, abusing and looting civilians in the northern Faryab Province during June. Militia forces loyal to Dostum stated that the civilians they targeted – at least 13 killed and 32 wounded – were supporters of the Taliban. In November 2016, at a buzkashi match, he punched his political rival Ahmad Ischi, and then his bodyguards beat Ischi. In 2017, he was accused of having Ischi kidnapped in that incident and raped with a gun on camera during a five-day detention, claims that Dostum denies but that nevertheless forced him into exile in Turkey. On 26 July 2018, he narrowly escaped a suicide bombing by ISIL-KP as he returned to Afghanistan at Kabul airport. Just after Dostum's convoy departed the airport, an attacker armed with a suicide vest bombed a crowd of several hundred people celebrating his return at the entrance to the airport. The attack killed 14 and injured 50, including civilians and armed security. On 30 March 2019, Dostum again escaped an expected assassination attempt while traveling from Mazar-e-Sharif to Jawzjan Province, though two of his bodyguards were killed. The Taliban claimed responsibility for the attack, the second in eight months. On 11 August 2021 during the Taliban's nationwide offensive, Dostum, along with Atta Muhammad Nur, led the government's defense of the city of Mazar-i-Sharif. Three days later, they fled across Hairatan to Uzbekistan. Atta Nur claimed that they were forced to flee due to a "conspiracy". Both men later pled allegiance to the National Resistance Front of Afghanistan, the remaining remnants of the collapsed Islamic Republic of Afghanistan. Dostum, Atta, Yunus Qanuni, Abdul Rasul Sayyaf and some other political figures formed the Supreme Council of National Resistance of the Islamic Republic of Afghanistan in opposition to the new Taliban regime in October 2021. Political and social views Dostum is considered to be liberal and somewhat leftist. Being ethnic Uzbek, he has worked on the battlefield with leaders from all other major ethnic groups, Hazaras, Tajiks and Pashtuns. When Dostum was ruling his northern Afghanistan proto-state before the Taliban took over in 1998, women were able to go about unveiled, girls were allowed to go to school and study at the University of Balkh, cinemas showed Indian films, music played on television, and Russian vodka and German beer were openly available: activities which were all banned by the Taliban. He viewed the ISAF forces attempt to crush the Taliban as ineffective and has gone on record saying in 2007 that he could mop up the Taliban "in six months" if allowed to raise a 10,000 strong army of Afghan veterans. As of 2007, senior Afghan government officials did not trust Dostum as they were concerned that he might be

when Soviet forces were withdrawing from Afghanistan. Due to his efforts in the army, Dostum was awarded the title "Hero of the Republic of Afghanistan" by President Najibullah. Civil war and northern Afghanistan autonomous state Dostum's men would become an important force in the fall of Kabul in 1992, with Dostum deciding to defect from Najibullah and allying himself with opposition commanders Ahmad Shah Massoud and Sayed Jafar Naderi, the head of the Isma'ili community, and together they captured the capital city. With the help of fellow defectors Mohammad Nabi Azimi and Abdul Wakil, his forces entered Kabul by air in the afternoon of April 14. He and Massoud fought in a coalition against Gulbuddin Hekmatyar. Massoud and Dostum's forces joined to defend Kabul against Hekmatyar. Some 4000–5000 of his troops, units of his Sheberghan-based 53rd Division and Balkh-based Guards Division, garrisoning Bala Hissar fort, Maranjan Hill, and Khwaja Rawash Airport, where they stopped Najibullah from entering to flee. Dostum then left Kabul for his northern stronghold Mazar-i-Sharif, where he ruled, in effect, an independent region (or 'proto-state'), often referred as the Northern Autonomous Zone. He printed his own Afghan currency, ran a small airline named Balkh Air, and formed relations with countries like Uzbekistan effectively creating his own proto-state with an army of up to 40,000 men, and with tanks supplied by Uzbekistan and Russia. While the rest of the country was in chaos, his region remained prosperous and functional, and it won him the support from people of all ethnic groups. Many people fled to his territory to escape the violence and fundamentalism imposed by the Taliban later on. In 1994, Dostum allied himself with Gulbuddin Hekmatyar against the government of Burhanuddin Rabbani and Ahmad Shah Massoud, but in 1995 sided with the government again. Taliban era Following the rise of the Taliban and their capture of Kabul, Dostum aligned himself with the Northern Alliance (United Front) against the Taliban. The Northern Alliance was assembled in late 1996 by Dostum, Massoud and Karim Khalili against the Taliban. At this point he is said to have had a force of some 50,000 men supported by both aircraft and tanks. Much like other Northern Alliance leaders, Dostum also faced infighting within his group and was later forced to surrender his power to General Abdul Malik Pahlawan. Malik entered into secret negotiations with the Taliban, who promised to respect his authority over much of northern Afghanistan, in exchange for the apprehension of Ismail Khan, one of their enemies.De Ponfilly, Christophe(2001); Massoud l'Afghan; Gallimard; ; p. 75 Accordingly, on 25 May 1997, Malik arrested Khan, handed him over and let the Taliban enter Mazar-e-Sharif, giving them control over most of northern Afghanistan. Because of this, Dostum was forced to flee to Turkey. However, Malik soon realized that the Taliban were not sincere with their promises as he saw his men being disarmed. He then rejoined the Northern Alliance, and turned against his erstwhile allies, driving them from Mazar-e-Sharif. In October 1997, Dostum returned from exile and retook charge. After Dostum briefly regained control of Mazar-e-Sharif, the Taliban returned in 1998 and he again fled to Turkey. Operation Enduring Freedom Dostum returned to Afghanistan in May 2001 to open up a new front before the U.S.-led campaign against the Taliban joined him, along with Commander Massoud, Ismail Khan and Mohammad Mohaqiq. On October 17, 2001, the CIA's eight-man Team Alpha, including Johnny Micheal Spann landed in the Dar-e-Suf to link up with Dostum. Three days later, the 12 members of Operational Detachment Alpha (ODA) 595 landed to join forces with Dostum and Team Alpha. Dostum, the Tajik commander |Atta Muhammad Nur| and their American allies defeated Taliban forces and recaptured Mazar-i-Sharif on November 10, 2001. On 24 November 2001, 15,000 Taliban soldiers were due to surrender after the Siege of Kunduz to American and Northern Alliance forces. Instead, 400 Al-Qaeda prisoners arrived just outside Mazar-i-Sharif. After they surrendered to Dostum, they were transferred to the 19th century garrison fortress, Qala-i-Jangi. The next day, while being questioned by CIA officers Johnny Micheal Spann and David Tyson, they used concealed weapons to revolt, triggering what became the Battle of Qala-i-Jangi against the guards. The uprising was finally brought under control after six days. Dasht-i-Leili massacre Dostum has been accused by Western journalists of responsibility for the suffocating or otherwise killing of Taliban prisoners in December 2001, with the number of victims estimated as 2,000. In 2009, Dostum denied the accusations and US President Obama ordered an investigation into the massacre. Karzai administration In the aftermath of Taliban's removal from northern Afghanistan, forces loyal to Dostum frequently clashed with Tajik forces loyal to Atta Muhammad Nur. Atta's men kidnapped and killed a number of Dostum's men, and constantly agitated to gain control of Mazar-e-Sharif. Through the political mediations of the Karzai administration, the International Security Assistance Force (ISAF) and the United Nations, the Dostum-Atta feud has gradually declined. They are now aligned in a new political party Dostum served as deputy defense minister the early period of the Karzai administration. On 20 May 2003, Dostum narrowly escaped an assassination attempt. He was often residing outside Afghanistan, mainly in Turkey. In February 2008, he was suspended after the apparent kidnapping and torture of a political rival. Time in Turkey Some media reports in 2008 stated earlier that Dostum was "seeking political asylum" in Turkey while others said he was exiled. One Turkish media outlet said Dostum was visiting after flying there with then Turkey's Foreign Minister Ali Babacan during a meeting of the Organization for Security and Cooperation in Europe (OSCE). On 16 August 2009, Dostum was asked to return from exile to Afghanistan to support President Hamid Karzai in his bid for re-election. He later flew by helicopter to his northern stronghold of Sheberghan, where he was greeted by thousands of his supporters in the local stadium. He subsequently made overtures to the United States, promising he could "destroy the Taliban and al Qaeda" if supported by the U.S., saying that "the U.S. needs strong friends like Dostum." Ghani administration On 7 October 2013, the day after filing his nomination for the 2014 general elections as running mate of Ashraf Ghani, Dostum issued a press statement that some news media were willing to welcome as "apologies": "Many mistakes were made during the civil war (…) It is time we apologize to the Afghan people who were sacrificed due to our negative policies (…) I apologize to the people who suffered from the violence and civil war (…)". Dostum was directly chosen as First Vice President of Afghanistan in the April–June 2014 Afghan presidential election, next to Ashraf Ghani as president and Sarwar Danish as second vice president. In July 2016, Human Rights Watch accused Abdul Rashid Dostum's National Islamic Movement of Afghanistan of killing, abusing and looting civilians in the northern Faryab Province during June. Militia forces loyal to Dostum stated that the civilians they targeted – at least 13 killed and 32 wounded – were supporters of the Taliban. In November 2016, at a buzkashi match, he punched his political rival Ahmad Ischi, and then his bodyguards beat Ischi. In 2017, he was accused of having Ischi kidnapped in that incident and raped with a gun on camera during a five-day detention, claims that Dostum denies but that nevertheless forced him into exile in Turkey. On 26 July 2018, he narrowly escaped a suicide bombing by ISIL-KP as he returned to Afghanistan at Kabul airport. Just after Dostum's convoy departed the airport, an attacker armed with a suicide vest bombed a crowd of several hundred people celebrating his return at the entrance to the airport. The attack killed 14 and injured 50, including civilians and armed security. On 30 March 2019, Dostum again escaped an expected assassination attempt while traveling from Mazar-e-Sharif to Jawzjan Province, though two of his bodyguards were killed. The Taliban claimed responsibility for the attack, the second in eight months. On 11 August 2021 during the Taliban's nationwide offensive, Dostum, along with Atta Muhammad Nur, led the government's defense of the city of Mazar-i-Sharif. Three days later, they fled across Hairatan to Uzbekistan. Atta Nur claimed that they were forced to flee due to a "conspiracy". Both men later pled allegiance to the National Resistance Front of Afghanistan, the remaining remnants of the collapsed Islamic Republic of Afghanistan. Dostum, Atta, Yunus Qanuni, Abdul Rasul Sayyaf and some other political figures formed the Supreme Council of National Resistance of the Islamic Republic of Afghanistan in opposition to the new Taliban regime in October 2021. Political and social views Dostum is considered to be liberal and somewhat leftist. Being ethnic Uzbek,

Assaka Mahajanapada, one of the sixteen Vedic Mahajanapadas, included Andhra, Maharashtra and Telangana. Archaeological evidence from places such as Amaravati, Dharanikota, and Vaddamanu suggests that the Andhra region was part of the Mauryan Empire. Amaravati might have been a regional centre for the Mauryan rule. After the death of Emperor Ashoka, Mauryan rule weakened around 200 BCE and was replaced by several smaller kingdoms in the Andhra region. The Satavahana dynasty dominated the Deccan region from the 1st century BCE to the 3rd century CE. The later Satavahanas made Dharanikota and Amaravathi their capital, which according to the Buddhists is the place where Nagarjuna, the philosopher of Mahayana lived in the 2nd and 3rd centuries. The Andhra Ikshvakus, with their capital at Vijayapuri, succeeded the Satavahanas in the Krishna River valley in the latter half of the 2nd century. Pallavas, who were originally executive officers under the Satavahana kings, were not a recognised political power before the 2nd century CE and were swept away by the Western Chalukyan invasion, led by Pulakesin II in the first quarter of the 7th century CE. After the downfall of the Ikshvakus, the Vishnukundinas were the first great dynasty in the 5th and 6th centuries, and held sway over the entire Andhra country, including Kalinga and parts of Telangana. They played an important role in the history of Deccan during the 5th and 6th century CE, with Eluru, Amaravathi and Puranisangam. The Salankayanas were an ancient dynasty that ruled the Andhra region between Godavari and Krishna with their capital at Vengi (modern Pedavegi) from 300 to 440 CE. The Eastern Chalukyas of Vengi, whose dynasty lasted for around five hundred years from the 7th century until 1130 CE, eventually merged with the Chola dynasty. They continued to rule under the protection of the Chola dynasty until 1189 CE when the kingdom succumbed to the Hoysalas and the Yadavas. The roots of the Telugu language have been seen on inscriptions found near the Guntur district and from others dating to the rule of Renati Cholas in the fifth century CE. Kayastha chiefs descended from North Indian Kayasthas ruled over vast swathes of land in Andhra country, and they are recorded in Andhra history dating back to the 13th century CE. Kakatiyas ruled Andhra Pradesh state for nearly two hundred years and constructed several forts. They were succeeded by the Musunuri Nayaks. Musunuri Nayaks led a confederation of Nayakas to overthrow the rule of the Delhi Sultanate in Telugu lands. The Reddi kingdom (1325–1448 CE) was established by Prolaya Vema Reddi in the early 14th century, who ruled from present day Kondaveedu. Prolaya Vema Reddi was part of the confederation of states that started a movement against the invading Turkic Muslim armies of the Delhi Sultanate. They constructed Kondaveedu Fort , which they ruled between 1328 and 1428, before it was taken over by the Gajpathis of Orissa, and later ravaged by the Muslim rulers of the Bahmani kingdom in 1458. The Vijayanagara emperor Krishnadevaraya captured it in 1516. The Golconda Sultans fought for the fort in 1531, 1536 and 1579, and Sultan Quli Qutb Shah captured it in 1579, renaming it Murtuzanagar. It was reconquered by Vijayanagara who overthrew sultanate rule across the entirety of modern-day Andhra Pradesh (excluding Telangana). After this rebellion, the Bahmani sultans launched no further military campaigns outside their kingdoms, because the Maratha empire soon emerged as the strongest power in India. Efforts are in progress to classify Kondaveedu Fort as a UNESCO World Heritage Site. The Vijayanagara Empire originated in the Deccan Plateau region in the early 14th century. It was established in 1336 by Harihara Raya I and his brother Bukka Raya I of the Sangama Dynasty. The empire's patronage enabled fine arts and literature to reach new heights in Kannada, Telugu, Tamil, and Sanskrit, while Carnatic music evolved into its current form. During the Vijayanagara Empire, the Pemmasani Nayaks controlled parts of Andhra Pradesh and had large mercenary armies that were the vanguard of the Vijayanagara Empire in the sixteenth century. The Lepakshi group of monuments are culturally and archaeologically significant as it is the location of shrines dedicated to Shiva, Vishnu, and Veerabhadra which were built during the Vijayanagara Kings' period (1336–1646). The temples are the location of mural paintings of the Vijayanagara kings, Dravidian art, and inscriptions. Near the temple complex is a large granite Nandi bull. On a hillock known as Kurma Saila ('tortoise-shaped hill') are other temples to Papanatheswara, Raghunatha, Srirama, and Durga. The Government of Andhra Pradesh has taken the initiative for including the "Lepakshi Group of Monuments" among the UNESCO World Heritage sites in India. Modern history Harihara and Bukka, who served as treasury officers of the Kakatiyas of Warangal, founded the Vijayanagara Empire. In 1347 CE, an independent Muslim state, the Bahmani Sultanate, was established in south India by Ala-ud-Din Bahman Shah in a revolt against the Delhi Sultanate. The Qutb Shahi dynasty held sway over the Andhra country after the resolution of Vijayanagar empire by joint action of Mughals, Bijapur and Golconda sultanates. In the early nineteenth century, Northern Circars was ceded to the British East India Company and became part of the Madras Presidency. Eventually, this region emerged as the Coastal Andhra region. Later the Nizam rulers of Hyderabad ceded five territories to the British that eventually became the Rayalaseema region. The Nizams retained control of the interior provinces as the princely state of Hyderabad, acknowledging British rule in return for local autonomy. However, Komaram Bheem, a tribal leader, started his fight against the erstwhile Asaf Jahi Dynasty for the liberation of Hyderabad State. Meanwhile, the French occupied Yanam, in the Godavari delta, and (save for periods of British control) would hold it until 1954. In 1947, Vizianagaram was the largest Hindu princely state in Andhra Pradesh. In 1839 just before the British Raj, a cyclone struck Coringa, East Godavari district and toppled buildings, as a result 20,000 ships were destroyed and over 300,000 people were killed. India became independent from the British Raj in 1947. The 7th Nizam wanted to retain the independence of the Princely Hyderabad State from India, but the people of the region launched a movement to join the Indian Union. The state of Hyderabad was integrated into the Indian Union with Operation Polo in 1948. Post-independence In an effort to gain an independent state based on linguistic identity, and to protect the interests of the Telugu-speaking people of Madras State, Potti Sreeramulu fasted to death in 1952. As Madras became a bone of contention, in 1949 a JVP committee report stated: "Andhra Province could be formed provided the Andhras give up their claim on the city of Madras [now Chennai]". After Potti Sreeramulu's death, the Telugu-speaking area of Andhra State was carved out of Madras State on 1 October 1953, with Kurnool as its capital city. On the basis of the gentlemen's agreement of 1 November 1956, the States Reorganisation Act formed combined Andhra Pradesh by merging Andhra State with the Telugu-speaking areas of the already existing Hyderabad State. Hyderabad was made the capital of the new state. The Marathi-speaking areas of Hyderabad State merged with Bombay State and the Kannada-speaking areas were merged with Mysore State. In February 2014, the Andhra Pradesh Reorganisation Act, 2014 bill was passed by the Parliament of India for the formation of the Telangana state comprising ten districts. Hyderabad will remain as a joint capital for not exceeding ten years. The new state of Telangana came into existence on 2 June 2014 after approval from the President of India. Number of petitions questioning the validity of Andhra Pradesh Reorganisation Act, 2014 is long pending for the verdict since April 2014 before the Supreme Court constitutional bench. In 2017, Government of Andhra Pradesh began operating from the newly planned capital city Amaravati. In August 2020, Andhra Pradesh Legislative Assembly passed Andhra Pradesh Decentralisation and Inclusive Development of All Regions Act, 2020. According to its provisions, Visakhapatnam is the executive capital while Amaravati and Kurnool serve as legislative and judicial capitals, respectively. The decision resulted in widespread protests by the farmers of Amaravati. The act has been challenged in Andhra Pradesh High Court, which ordered to maintain status quo until the court completes its hearing. On 22 November 2021, the government, led by Y. S. Jagan Mohan Reddy, has withdrawn the act. The Chief Minister, however, said his government would bring a better and more complete bill. Geography The state has varied topography ranging from the hills of Eastern Ghats and Nallamala Hills to the shores of Bay of Bengal that support varied ecosystems, the rich diversity of flora and fauna. There are two main rivers namely, Krishna and Godavari, that flow through the state. The coastline of the state extends along the Bay of Bengal from Srikakulam to Nellore district with a length of 975 km (606 mi). The plains to the east of Eastern Ghats form the Eastern Coastal plains. The coastal plains are for the most part of delta regions formed by the Godavari, Krishna, and Penna rivers. The Eastern Ghats are discontinuous and individual sections have local names. The Eastern Ghats are a major dividing line in the state's geography. The Kadapa Basin formed by two arching branches of the Eastern Ghats is a mineral-rich area. The Ghats become more pronounced towards the south and extreme north of the coast. Most of the coastal plains are put to intense agricultural use. The Rayalaseema region has semi-arid conditions. Natural vegetation and conservation The Andhra Pradesh Forest Department deals with protection, conservation and management of forests. The total forest cover of the state after the bifurcation is left with an area of . The forest in the state can be broadly divided into four major biotic provinces. They are: Deccan Plateau Central Plateau Eastern Highland East Coastal Plains Eastern Ghats region is home to dense tropical forests, while the vegetation becomes sparse as the Ghats give way to the Deccan Plateau, where shrub vegetation is more common. The vegetation found in the state is largely of dry deciduous types with a mixture of teak, Terminalia, Dalbergia, Pterocarpus, Anogeissus, etc. The state has many sanctuaries, national parks and zoological parks, such as Coringa, Krishna Wildlife Sanctuary, Nagarjunsagar-Srisailam Tiger Reserve, Kambalakonda Wildlife Sanctuary, Sri Venkateswara Zoological Park and Indira Gandhi Zoological Park. Atapaka Bird Sanctuary, Nelapattu Bird Sanctuary, Telineelapuram and Telukunchi Bird Sanctuaries and Pulicat Lake Bird Sanctuary attract many migratory birds. The state possesses some rare and endemic plants like Cycas beddomei, Pterocarpus santalinus, Terminalia pallida, Syzygium alternifolium, Shorea talura, Shorea tumburgia, Psilotum nudum, etc. The diversity of fauna includes tigers, panthers, hyenas, black bucks, cheetals, sambars, sea turtles and a number of birds and reptiles. The estuaries of the Godavari and Krishna rivers support rich mangrove forests with fishing cats and otters as keystone species. Climate The climate of Andhra Pradesh varies considerably, depending on the geographical region. Summers last from March to June. In the coastal plain, the summer temperatures are generally higher than the rest of the state, with temperature ranging between . July to September is the season for tropical rains. About one-third of the total rainfall is brought by the northeast monsoon. October and November see low-pressure systems and tropical cyclones form in the Bay of Bengal which, along with the northeast monsoon, bring rains to the southern and coastal regions of the state. November, December, January, and February are the winter months in Andhra Pradesh. Since the state has a long coastal belt the winters are not very cold. The range of winter temperature is generally . Lambasingi in Visakhapatnam district is also nicknamed as the "Kashmir of Andhra Pradesh" due to its relatively cool climate as compared to others and the temperature ranges from . Demographics Census of India, the residual state had a population of with a population density of . According to the Polavaram ordinance bill 2014, 7 mandals of Khammam district in Telangana state merged with Andhra Pradesh to facilitate Polavaram project, due to which population of added to Andhra Pradesh. Thus the final population of Andhra Pradesh in the year 2014, as per census 2011 is , with a density of . The total population constitute, 70.4% of rural population with inhabitants and 29.6% of urban population with inhabitants. Children in the age group of 0–6 years are , constituting 10.6% of the total population, among them are boys and are girls. Visakhapatnam district has the largest urban population of 47.5% and Srikakulam district with 83.8%, has the largest rural population, among others districts in the state. The overall population of the state comprises 17.1% of Scheduled Caste and 5.3% of Scheduled Tribe population. There are male and female citizens—a sex ratio of 996 females per 1000 males, higher than the national average of 926 per 1000. The literacy rate of the state stands at 67.41%. However, post bifurcation from Telangana, the state is expected to reach 91.1% by 2021. West Godavari district has the highest literacy rate of 74.6% and Vizianagaram district has the least with 58.9%. Andhra Pradesh ranks tenth of all Indian States in the Human Development Index scores with a score of 0.416. The National Council of Applied Economic Research district analysis in 2001 reveals that Krishna, West Godavari and Chittoor are the three districts in rural AP with the highest Human Development Index scores in ascending order. Languages Telugu is the official language of Andhra Pradesh, which is also the mother tongue of nearly 90% of the population. The Minister of Tourism and Culture has declared Telugu a Classical Language. Urdu is the largest minority language. Tamil, Kannada and Odia are also spoken mainly in the border-areas. Lambadi, Koya, Savara, Konda, Gadaba and a number of other languages are spoken by the Scheduled Tribes of the state. Religion The majority of the people in Andhra Pradesh are Hindus while Muslims constitute a sizeable minority. According to the 2011 census, the major religious groups in the state are Hindus (90.87%), Muslims (7.32%) and Christians (1.38%). Buddhists, Sikhs, Jains and the people who declined to state their religion make up the remaining portion of population. Hinduism Venkateswara Temple at Tirupati is the world's second-richest temple and is visited by millions of devotees throughout the year. Andhra Pradesh is home to Shankaracharya of Pushpagiri Peetham. Other Hindu saints include Sadasiva Brahmendra, Bhaktha Kannappa, Yogi Vemana, Sathya Sai Baba and Pothuluru Veerabrahmendra. Mahayana Buddhism Buddhism spread to Andhra Pradesh early in its history. The Krishna river valley was "a site of extraordinary Buddhist activity for almost a thousand years." The ancient Buddhist sites in the lower Krishna valley, including Amaravati, Nagarjunakonda and Jaggayyapeta "can be traced to at least the third century BCE, if not earlier." The region played a central role in the development of Mahayana Buddhism, along with the Magadha-area in northeastern India. A. K. Warder holds that "the Mahāyāna originated in the south of India and almost certainly in the Andhra country." According to Xing, "Several scholars have suggested that the Prajnaparamita probably developed among the Mahasamghikas in Southern India probably in the Andhra country, on the Krishna River." The Prajñāpāramitā Sutras belong to the earliest Mahayana Sutras. Administrative divisions Regions Andhra Pradesh comprises three regions: Coastal Andhra, Uttarandhra and Rayalaseema. Districts It has a total of 13 districts, six in Coastal Andhra region, three in Uttarandhra and four in the Rayalaseema region. Coastal Andhra Region : East Godavari Guntur Krishna Nellore Prakasam West Godavari Uttarandhra Region : Srikakulam Visakhapatnam Vizianagaram Rayalaseema Region : Anantapur Chittoor Kadapa Kurnool Revenue divisions These 13 districts are further divided into 51 revenue divisions. There are as many as 7 revenue divisions in East Godavari, and only 2 in Vizianagaram district. Mandals The 51 revenue divisions are in turn divided into 671 mandals. Chittoor district has the most mandals with 66 and Vizianagaram has the least with 34. Cities There are a total of 31 cities which include, 16 municipal corporations and 14 municipalities. There are two cities with more than one million inhabitants, namely Visakhapatnam and Vijayawada. Government and politics When the state was first created, Tanguturi Prakasam Pantulu, became the Chief Minister. After the unification with Telangana, Neelam Sanjiva Reddy became the first Chief Minister. He later served as the President of India. The Indian National Congress (INC), the Praja Socialist Party and the Krishi Lok Party were the major parties in the 1950s. Later the Communist Party of India (CPI) became the dominant opposition party. In the 1967 state assembly elections, all socialist parties were eliminated and the CPI lost opposition party status. The INC ruled the state from 1956 to 1982. In 1983, the Telugu Desam Party (TDP) won the state elections and N. T. Rama Rao became the Chief Minister of the state for the first time. This broke the long-time single party monopoly enjoyed by the INC. The 1989 elections ended the rule of Rao, with the INC returning to power with Marri Chenna Reddy at the helm. He was replaced by Janardhan Reddy in 1990, who was replaced by Kotla Vijaya Bhaskara Reddy in 1992. In 1994, Andhra Pradesh gave a mandate to the Telugu Desam Party again, and Rao became the Chief Minister again. Nara Chandrababu Naidu, Rao's son-in-law, came to power in 1995 with the backing of a majority of the MLAs. The Telugu Desam Party won both the assembly and Lok Sabha election in 1999 under the leadership of Chandrababu Naidu. Thus Naidu held the record for the longest-serving Chief Minister (1995 to 2004). In 2004, Congress returned to power with a new chief ministerial face, YS Rajashekara Reddy, better known as YSR. He also won the 2009 elections, but shortly afterward was killed in a helicopter crash in September of that year. He was succeeded by two other Congressmen, namely Konijeti Rosaiah and Nallari Kiran Kumar Reddy, the last resigning over the impending division of Telangana. In the last elections held in the unified state in 2014, the TDP got a mandate in their favour in the residuary (new) state. After Telangana became a separate state, Naidu, the chief of the TDP became the Chief Minister on 8 June 2014, for the new state of Andhra Pradesh. As of 2014, the Legislative Assembly of Andhra Pradesh is the lower house of the state with 175 members and the Legislative Council

Assembly of Andhra Pradesh is the lower house of the state with 175 members and the Legislative Council is the upper house with 58 members. In the Parliament of India, Andhra Pradesh has 11 seats in the Rajya Sabha, and 25 seats in the Lok Sabha. There are a total of 175 Assembly constituencies in the state. East Godavari district has the highest number of constituencies with 19 and Vizianagaram district has the least with 9 assembly seats. Whereas, the legislative council of the state has 58 seats, which is one-third of total assembly seats. In the 2019 elections, YSR's son Y. S. Jaganmohan Reddy of the YSR Congress Party (founded in 2011) became the Chief Minister with a resounding mandate by winning 151 out of 175 seats. Economy Andhra Pradesh was ranked eighth among other Indian states in terms of GSDP for the financial year 2014–2015. The GSDP at current prices was and at constant prices was . The domestic product of agriculture sector accounts for and industrial sector for . The service sector of the state accounts more percentage of the GSDP with a total of . In the 2010 list by Forbes magazine, several people from Andhra Pradesh were among the top 100 richest Indians. Agriculture Andhra Pradesh's economy is mainly based on agriculture and livestock. Four important rivers of India, the Godavari, Krishna, Penna, and Tungabhadra flow through the state and provide irrigation. 60 percent of the population is engaged in agriculture and related activities. Rice is the major food crop and staple food of the state. It is an exporter of many agricultural products and is also known as "Rice Bowl of India". The state has three Agricultural Economic Zones in Chittoor district for mango pulp and vegetables, Krishna district for mangoes, Guntur district for chilies. Besides rice, farmers also grow jowar, bajra, maize, minor millet, coarse grain, many varieties of pulses, oil seeds, sugarcane, cotton, chili pepper, mango nuts and tobacco. Crops used for vegetable oil production such as sunflower and peanuts are popular. There are many multi-state irrigation projects under development, including Godavari River Basin Irrigation Projects and Nagarjuna Sagar Dam. Livestock and poultry is also another profitable business, which involves rearing cattle in enclosed areas for commercial purposes. The state is also a largest producer of eggs in the country and hence, it is nicknamed as "Egg Bowl of Asia". Fisheries contribute 10% of total fish and over 70% of the shrimp production of India. The geographical location of the state allows marine fishing as well as inland fish production. The most exported marine exports include Vannamei shrimp Infrastructure Andhra Pradesh is investing in building infrastructure in the state such as highways and making every service of the government digital. National Highway 16 passes through Andhra Pradesh. The highways in the state are also being widened. APSFL is an initiative of the government of Andhra Pradesh to set up an optical fiber network throughout the thirteen districts of Andhra Pradesh. This network provides internet connectivity, telephony and IPTV with fiber to private and corporate users of Andhra Pradesh. The state also has seaports such as Visakhapatnam Port, Kakinada Port, Krishnapatnam Port for import and export and a shipyard for building ships at Visakhapatnam. Major airports in the state are Visakhapatnam, Rajahmundry, Vijayawada, with Visakhapatnam, Tirupati and Vijayawada being international airports. Industrial sector The industrial sector of the state includes some of the key sectors like pharmaceutical, automobile, textiles etc. Sricity located in Chittoor district is an integrated business city which is home to firms including PepsiCo, Isuzu Motors, Cadbury India, Kellogg's, Colgate-Palmolive, Kobelco etc. The PepsiCo firm has its largest plant in India at Sri City. The state is also emerging as destination for the automobile industry which already hosts companies including Ashok Leyland in Krishna district, Hero Motors in Chittoor district, Kia Motors in Anantapur district. The state is also emerging in information technology and biotechnology. The IT/ITES revenues of Visakhapatnam is at in 2012–2013. The development of IT in Tier-II and Tier-III cities like Vijayawada, Kakinada and Tirupati is also improving. In the fiscal year 2012–2013, Vijayawada's IT/ITeS revenues were . Tirupati with and Kakinada with stand next. For the benefit of state, that is, after separating Telangana from Andhra, people of Andhra protested for special status during January in 2017. Resources Andhra Pradesh is one of the storehouses of mineral resources in India. Andhra Pradesh with varied geological formations, contain rich and variety of industrial minerals and building stones. Andhra Pradesh is listed at the top in the deposit and production of mica in India. Minerals found in the state include limestone, reserves of oil and natural gas, manganese, asbestos, iron ore, ball clay, fire clay, gold diamonds, graphite, dolomite, quartz, tungsten, steatitic, feldspar, silica sand. It has about one-third of India's limestone reserves and is known for large exclusive deposits of barytes and galaxy granite in the international market. Mining Mining is identified as one of the growth engines for the overall development of industry and infrastructure. The Tummalapalle Uranium mine in Andhra has confirmed of ore and there are indications that it could hold reserves totaling three times its current size. of metal grade Bauxite deposits in proximity to Visakhapatnam Port. Reliance Industries struck nine trillion cubic feet of gas reserves in the KG basin, off the Andhra Pradesh coast near Kakinada. Discovery of a large quantity of natural gas in KG Basin is expected to provide rapid economic growth. During 2016, nearly of methane hydrate deposits were explored in KG basin whose extraction was adequate to impart energy security for many decades to India. Power plants The state is a pioneer nationwide in solar power generation. APGENCO is the power generating company owned by the state. The state has become power surplus with excess power generation being exported to other states. The state is abundantly endowed with solar power and high head PHES sites to convert the solar power available during the day time in to round the clock power supply. PHES projects also has synergy with the lift irrigation projects in storing water available during the monsoon season and supplying to the uplands throughout the year. Ultimate water and energy requirements of the state can be fully met by the combination of cheap solar power, PHES and irrigation projects economically harnessing renewable energy without much damage to the environment. Thermal (natural gas and coal based) and renewable power plants totaling to 21,000 MW were installed in the state by the year 2015. Local power plants of 9,600 MW capacity only are supplying electricity in the state, which includes Simhadri Super Thermal Power Station (2000 MW) of NTPC, Vizag Thermal Power Station (1040 MW), Rayalaseema Thermal Power Station (1650 MW), Sri Damodaram Sanjeevaiah Thermal Power Station (1600 MW), and Narla Tata Rao Thermal Power Plant (1760 MW). Hydel power plants have a capacity of 1671 MW. Culture Andhra Pradesh has rich culture and heritage. Kuchipudi, the cultural dance recognized as the official dance form of the state of Andhra Pradesh, originated in the village of Kuchipudi in Krishna district. It entered the Guinness World Records for performing Mahabrinda Natyam with a total of 6,117 dancers in Vijayawada. Andhra Pradesh has thirteen geographical indications in categories of agricultural handicrafts, foodstuff and textiles as per Geographical Indications of Goods (Registration and Protection) Act, 1999. It increased to fifteen with the addition of Banaganapalle Mangoes and Bandar laddu. The other GI tagged goods are, Bobbili Veena, Budithi Bell and Brass Craft, Dharmavaram Handloom Pattu Sarees and Paavadas, Guntur Sannam, Kondapalli Toys, Machilipatnam Kalamkari, Mangalagiri Sarees and Fabrics, Srikalahasti Kalamkari, Tirupati Laddu, Uppada Jamdani Sari and Venkatagiri Sari. Arts, crafts and artifacts Machilipatnam and Srikalahasti Kalamkari are the two unique textile art forms practised in India. There are also other notable handicrafts present in the state, like the soft limestone idol carvings of Durgi. Etikoppaka in Visakhapatnam district is notable for its lac industry, producing lacquered wooden. The state has many museums, which features a varied collection of ancient sculptures, paintings, idols, weapons, cutlery, and inscriptions, and religious artifacts such as the Amaravati Archaeological Museum, Visakha Museum and Telugu Cultural Museum in Visakhapatnam displays the history of the pre-independence and the Victoria Jubilee Museum in Vijayawada with a large collection of artifacts. Literature Nannayya, Tikkana and Yerrapragada form the trinity who translated the Sanskrit epic Mahabharata into Telugu language. Nannayya wrote the first treatise on Telugu grammar called Andhra Shabda Chintamani in Sanskrit, as there was no grammatical work in Telugu prior to that. Pothana is the poet who composed the classic Srimad Maha Bhagavatamu, a Telugu translation of Sri Bhagavatam. Vemana is notable for his philosophical poems. The Vijayanagara emperor Krishnadevaraya wrote Amuktamalyada. Telugu literature after Kandukuri Veeresalingam is termed as Adhunika Telugu Sahityam (Modern Telugu literature). He is known as Gadya Tikkana and was the author of Telugu social novel, Satyavati Charitam. Jnanpith Award holders from the state include Viswanatha Satyanarayana. The Andhra Pradesh native and revolutionary poet Sri Sri brought new forms of expressionism into Telugu literature. Media The print media in the state consists mainly of Telugu and English newspapers. Eenadu, Sakshi, Andhra Jyothi, and Tel.J.D.Patrika Vaartha all these are Telugu newspapers. English newspapers include Deccan Chronicle and The Hans India. Art and cinema Many composers of Carnatic music like Annamacharya, Kshetrayya, and Bhadrachala Ramadas were of Telugu descent. Modern Carnatic music composers and singers like Ghantasala, Sujatha Puligella and M. Balamuralikrishna are also of Telugu descent. The Telugu film industry hosts many music composers and playback singers such as S. P. Balasubrahmanyam, P. Susheela, S. Janaki and P. B. Sreenivas. Folk songs are very important and popular in the many rural areas of the state. Forms such as the Burra katha and Poli are still performed today. Harikathaa Kalakshepam (or Harikatha) involves the narration of a story, intermingled with various songs relating to the story. Harikatha was originated in Andhra. Burra katha is an oral storytelling technique with the topic be either a Hindu mythological story or a contemporary social issue. Rangasthalam is an Indian theatre in the Telugu language, based predominantly in Andhra Pradesh. Gurajada Apparao wrote the play Kanyasulkam in 1892, often considered the greatest play in the Telugu language. C. Pullaiah is cited as the father of Telugu theatre movement. The Telugu film industry is largely based in Hyderabad and Visakhapatnam. The Telugu film culture (also known as "Tollywood") is the second-largest film industry in India next to the Bollywood film industry. Film producer D. Ramanaidu holds a Guinness Record for the most films produced by a person. In the years 2005, 2006 and 2008, the Telugu film industry produced the largest number of films in India, exceeding the number of films produced in Bollywood. The industry holds the Guinness World Record for the largest film production facility in the world. Cuisine Telugu people's traditional sweet Pootharekulu originated from Atreyapuram village of East Godavari district. Tourism The state has several beaches in its coastal districts such as Rushikonda, Mypadu, Suryalanka etc.; caves such as, Borra Caves, Indian rock-cut architecture depicting Undavalli Caves and the country's second longest caves- the Belum Caves. The valleys and hills include, Araku Valley, Horsley Hills, Papi Hills etc. Arma Konda peak located in Visakhapatnam district is the highest peak in Eastern Ghats. The state is home to various religious pilgrim destinations such as, Tirumala Temple, Simhachalam Temple, Annavaram temple, Srisailam temple, Kanaka Durga Temple, Amaravati, Srikalahasti, Shahi Jamia Masjid in Adoni, Gunadala Church in Vijayawada, Buddhist centres at Amaravati, and Nagarjuna Konda. Khadri Lakshmi Narasimha Swamy Temple KADIRI Transport The state is well connected to other states through road and rail networks. It is also connected to other countries by means of airways and seaports as well. With a long seacoast along the Bay of Bengal, it also has many ports for sea trade. The state has one of the largest railway junctions at Vijayawada and one of the largest seaports at Visakhapatnam. Roads The state has a total road network of , of which of National highways, of state highways and of district roads. NH 16, with a highway network of around in the state, is a part of Golden Quadrilateral Project undertaken by National Highways Development Project. It also forms part of AH 45 which comes under the Asian Highway Network. The state government owned Andhra Pradesh State Road Transport Corporation (APSRTC) is the major public bus transport, which runs thousands of buses connecting different parts of the state. Pandit Nehru Bus Station (PNBS) in Vijayawada is one of the largest bus terminals in Asia. From 30 January 2019, all the vehicles in the state are registered as AP–39, followed by an alphabet and four digits. Railways Andhra Pradesh has a total broad-gauge railway route of and has no metre-gauge railway. The rail density of the state is 16.59 per , compared to an all India average of 20. The Howrah–Chennai main line which runs through the state is proposed to be upgraded into a high-speed rail corridor through the Diamond Quadrilateral project of the Indian Railways. The railway network spans two zones, further subdivided into divisions – Vijayawada, Guntur and Guntakal railway divisions of South Central Railway zone, and Waltair railway division of East Coast Railway zone. There is a demand for creating a unified zone for the state based out of Visakhapatnam. There are three A1 and twenty three A-category railway stations in the state. has been declared the cleanest railway station in the country. The railway station of Shimiliguda was the first highest broad gauge railway station in the country. As on date the Railways lines in Andhra Pradesh are under the following Railway zones/Divisions South Central Railway-Secunderabad Division South Central Railway-Hyderabad Division South Central Railway-Vijayawada Division South Central Railway-Guntakal Division South Central Railway-Guntur Division East Coast Railway- Waltair Division East Coast Railway- Khurda Road Division A new railway zone South Coast Railway Zone (SCoR) has been announced as the newest railway zone of the Indian Railways and is headquartered at Visakhapatnam, Andhra Pradesh. The formal notification for operationalization of this Zone is yet to be issued. When created it will include Waltair Division of East Coast Railway zone and Vijayawada Division, Guntakal Division & Guntur Division of South Central Railway zone. Airports Visakhapatnam Airport, is the only airport in the state with operating international flights while Vijayawada Airport at Gannavaram has launched an international flight to Singapore, recently. The state has four other domestic airports, Rajahmundry Airport, Kadapa Airport, a privately owned, public use airport at Puttaparthi, and Tirupati Airport located in the city of Tirupati. There are also 16 small air strips located in the state. Sea ports Andhra Pradesh has one of the country's largest port at Visakhapatnam in terms of cargo handling. The other famous ports are Krishnapatnam Port (Nellore), Gangavaram Port and Kakinada Port. Gangavaram Port is a deep seaport which can accommodate ocean liners up to 200,000–250,000 DWT. There are 14 notified non-major ports at Bheemunipatnam, S.Yanam, Machilipatnam, Nizampatnam, and Vadarevu. Education and research Andhra Pradesh has an overall literacy rate of 67.41% as per the 2011 Indian census. The primary and secondary school education is imparted by government, aided and private schools, managed and regulated by the School Education Department of the state. There are urban, rural and residential schools. As per the child info and school information report (2018–19), there were a total of students, enrolled in schools respectively. The Directorate of Government Examinations of the state administers and conduct the Secondary School Certificate (SSC) examination. More than students have appeared for the 2019 SSC exam and recorded an overall pass percentage of 94.88% with a 100% pass percentage in 5,464 schools. The mediums of instruction are primarily Telugu and English with a very few opting for Urdu, Hindi,

and similar fields. 64-bit AGP A 64-bit channel was once proposed as an optional standard for AGP 3.0 in draft documents, but it was dropped in the final version of the standard. The standard allows 64-bit transfer for AGP8× reads, writes, and fast writes; 32-bit transfer for PCI operations. Unofficial variations A number of non-standard variations of the AGP interface have been produced by manufacturers. Internal AGP interface Ultra-AGP, Ultra-AGPII It is an internal AGP interface standard used by SiS for the north bridge controllers with integrated graphics. The original version supports same bandwidth as AGP 8×, while Ultra-AGPII has maximum 3.2GB/s bandwidth. PCI-based AGP ports AGP Express Not a true AGP interface, but allows an AGP card to be connected over the legacy PCI bus on a PCI Express motherboard. It is a technology used on motherboards made by ECS, intended to allow an existing AGP card to be used in a new motherboard instead of requiring a PCIe card to be obtained (since the introduction of PCIe graphics cards few motherboards provide AGP slots). An "AGP Express" slot is basically a PCI slot (with twice the electrical power) with an AGP connector. It offers backward compatibility with AGP cards, but provides incomplete support (some AGP cards do not work with AGP Express) and reduced performance—the card is forced to use the shared PCI bus at its lower bandwidth, rather than having exclusive use of the faster AGP. AGI The ASRock Graphics Interface (AGI) is a proprietary variant of the Accelerated Graphics Port (AGP) standard. Its purpose is to provide AGP-support for ASRock motherboards that use chipsets lacking native AGP support. However, it is not fully compatible with AGP, and several video card chipsets are known not to be supported. AGX The EPoX Advanced Graphics eXtended (AGX) is another proprietary AGP variant with the same advantages and disadvantages as AGI. User manuals recommend not using AGP 8× ATI cards with AGX slots. XGP The Biostar Xtreme Graphics Port is another AGP variant, also with the same advantages and disadvantages as AGI and AGX. PCIe based AGP ports AGR The Advanced Graphics Riser is a variation of the AGP port used in some PCIe motherboards made by MSI to offer limited backwards compatibility with AGP. It is, effectively, a modified PCIe slot allowing for performance comparable to an AGP 4×/8× slot, but does not support all AGP cards; the manufacturer published a list of some cards and chipsets that work with the modified slot. Compatibility AGP cards are backward and forward compatible within limits. 1.5 V-only keyed cards will not go into 3.3 V slots and vice versa, though "Universal" cards exist which will fit into either type of slot. There are also unkeyed "Universal" slots that will accept either type of card. When an AGP Universal card is plugged-into an AGP Universal slot, only the 1.5 V portion of the card is used. Some cards, like Nvidia's GeForce 6 series (except the 6200) or ATI's Radeon X800 series, only have keys for 1.5 V to prevent them from being installed in older mainboards without 1.5 V support. Some of the last modern cards with 3.3 V support were the Nvidia GeForce FX series (FX 5200, FX 5500, FX 5700, some FX 5800, FX 5900 and some FX 5950), certain Geforce 6 Series and 7 series (few cards were made with 3.3v support except for 6200 where 3.3v support was common) and the ATI Radeon 9500/9700/9800 (R300/R350) (but not 9600/9800(R360/RV360)). Some Geforce 6200/6600/6800 and Geforce 7300/7600/7800/7900/7950 cards will function with AGP 1.0 (3.3v) slots, but those are really uncommon compared to their AGP 1.5v only versions. AGP Pro cards will not fit into standard slots, but standard AGP cards will work in a Pro slot. Motherboards equipped with a Universal AGP Pro slot will accept a 1.5 V or 3.3 V card in either the AGP Pro or standard AGP configuration, a Universal AGP card, or a Universal AGP Pro card. Some cards incorrectly have dual notches, and some motherboards incorrectly have fully open slots, allowing a card to be plugged into a slot that does not support the correct signaling voltage, which may damage card or motherboard. Some incorrectly designed older 3.3 V cards have the 1.5 V key. There are some proprietary systems incompatible with standard AGP; for example, Apple Power Macintosh computers with the Apple Display Connector (ADC) have an extra connector which delivers power to the attached display. Some cards designed to work with a specific CPU architecture (e.g., PC, Apple) may not work with others due to firmware issues. Mark Allen of Playtools.com made the following comments regarding Practical AGP Compatibility for AGP 3.0 and AGP 2.0: Power consumption Actual power supplied by an AGP slot depends upon the card used. The maximum current drawn from the various rails is given in the specifications for the various versions. For example, if maximum current is drawn from all supplies and all voltages are at their specified upper limits, an AGP 3.0 slot can supply up to 48.25 watts; this figure can be used to specify a power supply conservatively, but in practice a card is unlikely ever to draw more than 40 W from the slot, with many using less. AGP Pro provides additional power up to 110 W. Many AGP cards had additional power connectors to supply them with more power than the slot could provide. Later use By 2010, few new motherboards had AGP slots. No new motherboard chipsets were equipped with AGP support, but motherboards continued to be produced with older chipsets with support for AGP. Graphics processors of this period use PCI-Express, a general-purpose (not restricted to graphics) standard that supports higher data transfer rates and full-duplex. To create AGP-compatible graphics cards, those chips require an additional PCIe-to-AGP bridge-chip to convert PCIe signals to and from AGP signals. This incurs additional board costs due to the need for the additional bridge chip and for a separate AGP-designed circuit board. Various manufacturers of graphics cards continued to produce AGP cards for the shrinking AGP user-base. The first bridged cards were the GeForce 6600 and ATI Radeon X800 XL boards, released during 2004–2005. In 2009 AGP cards from Nvidia had a ceiling of the GeForce 7 Series. In 2011 DirectX 10-capable AGP cards from AMD vendors (Club 3D, HIS, Sapphire, Jaton, Visiontek, Diamond, etc.) included the Radeon HD 2400, 3450, 3650, 3850, 4350, 4650, and 4670. The HD 5000 AGP series mentioned in the AMD Catalyst software was never available. There were many problems with the AMD Catalyst 11.2 - 11.6 AGP hotfix drivers under Windows 7 with the HD 4000 series AGP video cards; use of 10.12 or 11.1 AGP hotfix drivers is the recommended workaround. Several of the vendors listed above make available past versions of the AGP drivers. In 2016, Windows 10 version 1607 dropped support for AGP videocards making Windows 10 1511 the last Windows release to support AGP. AGP support removal in future Linux kernel and drivers was also considered as well. Protocol An AGP bus is a superset of a 66 MHz conventional PCI bus and, immediately after reset, follows the same protocol. The card must act as a PCI target, and optionally may act as a PCI master. (AGP 2.0 added a "fast writes" extension which allows PCI writes from the motherboard to the card to transfer data at higher speed.) After the card is initialized using PCI transactions, AGP transactions are permitted. For these, the card is always the AGP master and the motherboard is always the AGP target. The card queues multiple requests which correspond to the PCI address phase, and the motherboard schedules the corresponding data phases later. An important part of initialization is telling the card the maximum number of outstanding AGP requests which may be queued at a given time. AGP requests are similar to PCI memory read and write requests, but use a different encoding on command lines C/BE[3:0] and are always 8-byte aligned; their starting address and length are always multiples of 8 bytes (64 bits). The three low-order bits of the address are used instead to communicate the length of the request. Whenever the PCI GNT# signal is asserted, granting the bus to the card, three additional status bits ST[2:0] indicate the type of transfer to be performed next. If the bits are 0xx, a previously queued AGP transaction's data is to be transferred; if the three bits are 111, the card may begin a PCI transaction or (if sideband addressing is not in use) queue a request in-band using PIPE#. AGP command codes Like PCI, each AGP transaction begins with an address phase, communicating an address and 4-bit command

VIA Apollo VP3, SiS 5591/5592, and the ALI Aladdin V. Intel never released an AGP-equipped Socket 7 chipset. FIC demonstrated the first Socket 7 AGP system board in November 1997 as the FIC PA-2012 based on the VIA Apollo VP3 chipset, followed very quickly by the EPoX P55-VP3 also based on the VIA VP3 chipset which was first to market. Early video chipsets featuring AGP support included the Rendition Vérité V2200, 3dfx Voodoo Banshee, Nvidia RIVA 128, 3Dlabs PERMEDIA 2, Intel i740, ATI Rage series, Matrox Millennium II, and S3 ViRGE GX/2. Some early AGP boards used graphics processors built around PCI and were simply bridged to AGP. This resulted in the cards benefiting little from the new bus, with the only improvement used being the 66 MHz bus clock, with its resulting doubled bandwidth over PCI, and bus exclusivity. Examples of such cards were the Voodoo Banshee, Vérité V2200, Millennium II, and S3 ViRGE GX/2. Intel's i740 was explicitly designed to exploit the new AGP feature set; in fact it was designed to texture only from AGP memory, making PCI versions of the board difficult to implement (local board RAM had to emulate AGP memory.) Microsoft first introduced AGP support into Windows 95 OEM Service Release 2 (OSR2 version 1111 or 950B) via the USB SUPPLEMENT to OSR2 patch. After applying the patch the Windows 95 system became Windows 95 version 4.00.950 B. The first Windows NT-based operating system to receive AGP support was Windows NT 4.0 with Service Pack 3, introduced in 1997. Linux support for AGP enhanced fast data transfers was first added in 1999 with the implementation of the AGPgart kernel module. Versions Intel released "AGP specification 1.0" in 1997. It specified 3.3 V signals and 1× and 2× speeds. Specification 2.0 documented 1.5 V signaling, which could be used at 1×, 2× and the additional 4× speed and 3.0 added 0.8 V signaling, which could be operated at 4× and 8× speeds. (1× and 2× speeds are physically possible, but were not specified.) Available versions are listed in the adjacent table. AGP version 3.5 is only publicly mentioned by Microsoft under Universal Accelerated Graphics Port (UAGP), which specifies mandatory supports of extra registers once marked optional under AGP 3.0. Upgraded registers include PCISTS, CAPPTR, NCAPID, AGPSTAT, AGPCMD, NISTAT, NICMD. New required registers include APBASELO, APBASEHI, AGPCTRL, APSIZE, NEPG, GARTLO, GARTHI. There are various physical interfaces (connectors); see the Compatibility section. Official extensions AGP Pro An official extension for cards that required more electrical power, with a longer slot with additional pins for that purpose. AGP Pro cards were usually workstation-class cards used to accelerate professional computer-aided design applications employed in the fields of architecture, machining, engineering, simulations, and similar fields. 64-bit AGP A 64-bit channel was once proposed as an optional standard for AGP 3.0 in draft documents, but it was dropped in the final version of the standard. The standard allows 64-bit transfer for AGP8× reads, writes, and fast writes; 32-bit transfer for PCI operations. Unofficial variations A number of non-standard variations of the AGP interface have been produced by manufacturers. Internal AGP interface Ultra-AGP, Ultra-AGPII It is an internal AGP interface standard used by SiS for the north bridge controllers with integrated graphics. The original version supports same bandwidth as AGP 8×, while Ultra-AGPII has maximum 3.2GB/s bandwidth. PCI-based AGP ports AGP Express Not a true AGP interface, but allows an AGP card to be connected over the legacy PCI bus on a PCI Express motherboard. It is a technology used on motherboards made by ECS, intended to allow an existing AGP card to be used in a new motherboard instead of requiring a PCIe card to be obtained (since the introduction of PCIe graphics cards few motherboards provide AGP slots). An "AGP Express" slot is basically a PCI slot (with twice the electrical power) with an AGP connector. It offers backward compatibility with AGP cards, but provides incomplete support (some AGP cards do not work with AGP Express) and reduced performance—the card is forced to use the shared PCI bus at its lower bandwidth, rather than having exclusive use of the faster AGP. AGI The ASRock Graphics Interface (AGI) is a proprietary variant of the Accelerated Graphics Port (AGP) standard. Its purpose is to provide AGP-support for ASRock motherboards that use chipsets lacking native AGP support. However, it is not fully compatible with AGP, and several video card chipsets are known not to be supported. AGX The EPoX Advanced Graphics eXtended (AGX) is another proprietary AGP variant with the same advantages and disadvantages as AGI. User manuals recommend not using AGP 8× ATI cards with AGX slots. XGP The Biostar Xtreme Graphics Port is another AGP variant, also with the same advantages and disadvantages as AGI and AGX. PCIe based AGP ports AGR The Advanced Graphics Riser is a variation of the AGP port used in some PCIe motherboards made by MSI to offer limited backwards compatibility with AGP. It is, effectively, a modified PCIe slot allowing for performance comparable to an AGP 4×/8× slot, but does not support all AGP cards; the manufacturer published a list of some cards and chipsets that work with the modified slot. Compatibility AGP cards are backward and forward compatible within limits. 1.5 V-only keyed cards will not go into 3.3 V slots and vice versa, though "Universal" cards exist which will fit into either type of slot. There are also unkeyed "Universal" slots that will accept either type of card. When an AGP Universal card is plugged-into an AGP Universal slot, only the 1.5 V portion of the card is used. Some cards, like Nvidia's GeForce 6 series (except the 6200) or ATI's Radeon X800 series, only have keys for 1.5 V to prevent them from being installed in older mainboards without 1.5 V support. Some of the last modern cards with 3.3 V support were the Nvidia GeForce FX series (FX 5200, FX 5500, FX 5700, some FX 5800, FX 5900 and some FX 5950), certain Geforce 6 Series and 7 series (few cards were made with 3.3v support except for 6200 where 3.3v support was common) and the ATI Radeon 9500/9700/9800 (R300/R350) (but not 9600/9800(R360/RV360)). Some Geforce 6200/6600/6800 and Geforce 7300/7600/7800/7900/7950 cards will function with AGP 1.0 (3.3v) slots, but those are really uncommon compared to their AGP 1.5v only versions. AGP Pro cards will not fit into standard slots, but standard AGP cards will work in a Pro slot. Motherboards equipped with a Universal AGP Pro slot will accept a 1.5 V or 3.3 V card in either the AGP Pro or standard AGP configuration, a Universal AGP card, or a Universal AGP Pro card. Some cards incorrectly have dual notches, and some motherboards incorrectly have fully open slots, allowing a card to be plugged into a slot that does not support the correct signaling voltage, which may damage card or motherboard. Some incorrectly designed older 3.3 V cards have the 1.5 V key. There are some proprietary systems incompatible with standard AGP; for example, Apple Power Macintosh computers with the Apple Display Connector (ADC) have an extra connector which delivers power to the attached display. Some cards designed to work with a specific CPU architecture (e.g., PC, Apple) may not work with others due to firmware issues. Mark Allen of Playtools.com made the following comments regarding Practical AGP Compatibility for AGP 3.0 and AGP 2.0: Power consumption Actual power supplied by an AGP slot depends upon the card used. The maximum current drawn from the various rails is given in the specifications for the various versions. For example, if maximum current is drawn from all supplies and all voltages are at their specified upper limits, an AGP 3.0 slot can supply up to 48.25 watts; this figure can be used to specify a power supply conservatively, but in practice a card is unlikely ever to draw more than 40 W from the slot, with many using less. AGP Pro provides additional power up to 110 W. Many AGP cards had additional power connectors to supply them with more power than the slot could provide. Later use By 2010, few new motherboards had AGP slots. No new motherboard chipsets were equipped with AGP support, but motherboards continued to be produced with older chipsets with support for AGP. Graphics processors of this period use PCI-Express, a general-purpose (not restricted to graphics) standard that supports higher data transfer rates and full-duplex. To create AGP-compatible graphics cards, those chips require an additional PCIe-to-AGP bridge-chip to convert PCIe signals to and from AGP signals. This incurs additional board costs due to the need for the additional bridge chip and for a separate AGP-designed circuit board. Various manufacturers of graphics cards continued to produce AGP cards for the shrinking AGP user-base. The first bridged cards were the GeForce 6600 and ATI Radeon X800 XL boards, released during 2004–2005. In 2009 AGP cards from Nvidia had a ceiling of the GeForce 7 Series. In 2011 DirectX 10-capable AGP cards from AMD vendors (Club 3D, HIS, Sapphire, Jaton, Visiontek, Diamond, etc.) included the Radeon HD 2400, 3450, 3650, 3850, 4350, 4650, and 4670. The HD 5000 AGP series mentioned in the AMD Catalyst software was never available. There were many problems with the AMD Catalyst 11.2 - 11.6 AGP hotfix drivers under Windows 7 with the HD 4000 series AGP video cards; use of 10.12 or 11.1 AGP hotfix drivers is the recommended workaround.

leader of a reserve battalion. In 1855 Aagesen became a professor of jurisprudence at the University of Copenhagen. In 1870 he was appointed a member of the commission for drawing up a maritime and commercial code, and the navigation law of 1882 is mainly his work. In 1879 he was elected a member of the Landsting (one of two chambers

of a reserve battalion. In 1855 Aagesen became a professor of jurisprudence at the University of Copenhagen. In 1870 he was appointed a member of the commission for drawing up a maritime and commercial code, and the navigation law of 1882 is mainly his work. In 1879 he was elected a member of the Landsting (one of two chambers of the Danish Parliament, the Rigsdagen); but it is as a teacher at the university that he won his reputation. Aagesen was Carl Christian Hall's successor as lecturer on Roman law

set up barracks settlement areas at the Schlauch and Alter Turnplatz grounds. In spite of the industry being crippled by the Great Depression of 1929, the public baths at the Hirschbach creek where modernized, extended and re-opened in 1931. Nazi era In the federal election of 1932, the Nazi Party performed below average in Aalen with 25.8% of votes compared to 33.1% on the national level, thus finishing second to the Centre Party which had 26.6% (11.9% nationwide) of the votes, and ahead of the Social Democratic Party of Germany with 19.8% (20.4%). However, the March 1933 federal elections showed that the sentiment had changed as the Nazi Party received 34.1% (still below German average 43.9% nationwide), but by far the leading vote-getter in Aalen, followed by the Centre party at 26.6% (11.3% nationwide) and the Social Democrats 18.6% (18.3% nationwide). The democratically elected mayor Friedrich Schwarz remained in office until the Nazis removed him from office, in 1934, and replaced him by chairman of the Nazi Party town council head and brewery owner Karl Barth. Karl Barth was a provisional mayor until the more permanent solution of Karl Schübel. In August 1934, the Nazi consumer fair Braune Messe ("brown fair") was held in Aalen. During Nazi rule in Germany, there were many military offices constructed in Aalen, starting with, in 1936, a military district riding and driving school. The Nazis also built an army replenishment office (Heeresverpflegungsamt), a branch arsenal office (Heeresnebenzeugamt) and a branch army ammunitions institute (Heeresnebenmunitionsanstalt). Starting in 1935, mergers of neighbouring towns began. In 1938, the Oberamt was transformed into the Landkreis of Aalen and the municipality of Unterrombach was disbanded. Its territory was mostly added to Aalen, with the exception of Hammerstadt, which was added to the municipality of Dewangen. Forst, Rauental and Vogelsang were added to Essingen (in 1952 the entire former municipality of Unterrombach was merged into Aalen, with the exception of Forst, which is part of Essingen until present). In September 1944, the Wiesendorf concentration camp, a subcamp of Natzweiler-Struthof, was constructed nearby. It was designated for between 200 and 300 prisoners who were utilized for forced labor in industrial businesses nearby. Until the camp's dissolution in February 1945, 60 prisoners died. Between 1946 and 1957, the camp buildings were torn down; however, its foundations are still in place in house Moltkestraße 44/46. Also, there were several other labour camps which existed where prisoners of war along with women and men from occupied countries occupied by Germany were pooled. The prisoners at these other camps had to work for the arms industry in major businesses like Schwäbische Hüttenwerke and the Alfing Keßler machine factory. In the civic hospital, the deaconesses on duty were gradually replaced by National Socialist People's Welfare nurses. Nazi eugenics led to compulsory sterilization of some 200 persons there. Fortunately, Aalen avoided most of the combat activity during World War II. It was only during the last weeks of the war that Aalen became a target of air warfare, which led to the destruction and severe damage of parts of the town, the train station, and other railway installations. A series of air attacks lasting for more than three weeks reached its peak on 17 April 1945, when United States Army Air Forces planes bombed the branch arsenal office and the train station. During this raid, 59 people were killed, more than half of them buried by debris, and more than 500 lost their homes. Also, 33 residential buildings, 12 other buildings and 2 bridges were destroyed, and 163 buildings, including 2 churches, were damaged. Five days later, the Nazi rulers of Aalen were unseated by the US forces. Post-war era Aalen became part of the State of Baden-Württemberg, upon its creation in 1952. Then, with the Baden-Württemberg territorial reform of 1973, the District of Aalen was merged into the Ostalbkreis district. Subsequently, Aalen became seat of that district, and in 1975, the town's borough attained its present size (see below). The population of Aalen exceeded the limit of 20,000, which was the requirement for to gain the status of Große Kreisstadt ("major district town") in 1946. On 1 August 1947, Aalen was declared Unmittelbare Kreisstadt ("immediate district town"), and with the creation of the Gemeindeordnung (municipal code) of Baden-Württemberg on 1 April 1956, it was declared Große Kreisstadt. Religions On 31 December 2008, 51.1 percent of Aalen were members of the Catholic Church, 23.9 percent were members of the Evangelical-Lutheran Church. About 25 percent belong to other or no religious community or gave no information. The district of Waldhausen was the district with the highest percentage of Roman Catholic inhabitants at 75.6 percent, and the central district was the one with the highest percentage of Evangelical-Lutheran inhabitants at 25.6 percent, as well as those claiming no religious preference at 32.5 percent. Protestantism Aalen's population originally was subject to the jus patronatus of Ellwangen Abbey, and thus subject to the Roman Catholic Diocese of Augsburg. With the assistance of the Duke of Württemberg, in 1575, the reformation was implemented in Aalen. Subsequently, Aalen has been a predominantly Protestant town for centuries, with the exception of the years from 1628 until 1632 (see reformation section). Being an Imperial City, Aalen could govern its clerical matters on its own, so Clerics, organists and choir masters were direct subjects to the council, which thus exerted bishop-like power. There was even a proper hymn book for Aalen. After the transition to Württemberg, in 1803, Aalen became seat of a deanery, with the dean church being the Town Church (with the building constructed from 1765 to 1767 and existing until present). Another popular church is St. John's Church, located on the cemetery and refurbished in 1561. As Aalen's population grew in the 20th century, more parishes were founded: St. Mark's parish with its church building of 1967 and St. Martin's parish with its church of 1974. In the borough of Unterrombach, Aalen had implemented the reformation as well, but the community remained a chapel-of-ease of Aalen. A proper church, the Christ Church, was erected in 1912 and a proper parish was established in 1947. In Fachsenfeld, the ruling family of Woellwarth resp. of Leinroden implemented the reformation. A parish church was built in 1591, however with an influx of Catholics in the 18th century, a Catholic majority was established. The other districts of present-day Aalen remained mostly catholic after the reformation, however Wasseralfingen established a Lutheran parish in 1891 and a church, St. Magdalene's Church, in 1893. In Unterkochen, after World War II, a parish was established and a church was built in 1960. All four parishes belong to the deanery of Aalen within the Evangelical-Lutheran Church in Württemberg. Furthermore, in Aalen there are Old Pietistic communities. Catholicism The few Catholics of today's central district were covered by the parish of Unterkochen until the 19th century, a situation which continued for some years even after completion of St. Mary's Church in 1868, which was constructed by Georg Morlok. However, in 1872 Aalen got its proper parish again, and in 1913, a second Catholic church, Salvator's Church, was completed, and in 1969 the Holy Cross Church was also finished. In 1963, a second parish was set up, and in 1972 it got a new Church, the new St. Mary's Church, which has been erected in place of the old St. Mary's church, which had been torn down in 1968. Another church of the second parish was St. Augustine's Church, which was completed in 1970. Finally, in 1976 and 1988, St. Elizabeth's Church and St. Thomas' Church were completed. Furthermore, in 1963, the St. Michael pastoral care office was built. Hofherrnweiler has its own Catholic church, St. Boniface's, since 1904. The villages of Dewangen, Ebnat, Hofen, Waldhausen and Wasseralfingen had remained Catholic after reformation, so old parishes and churches persist there. The Assumption of Mary Church in Dewangen has an early Gothic tower and a newly built nave (1875). Mary's Immaculate Conception Church in Ebnat was constructed in 1723; however the church was first mentioned in 1298. Hofen's Saint George's Church is a fortified church, whose current nave was built between 1762 and 1775. Alongside the church, the Late Gothic St. Odile's Chapel is standing, whose entrance has the year 1462 engraved upon it. Foundations of prior buildings have been dated to the 11th and 13th century. St. Mary's Church of Unterkochen was first mentioned in 1248, and has served the Catholics of Aalen for a long time. Waldhausen's parish church of St. Nicholas was built between 1699 and 1716. Wasseralfingen at first was a chapel of ease for Hofen, but has since had its own chapel, St. Stephen, built. It was presumably built in 1353 and remodeled in 1832. In 1834, a proper parish was established, which built a new St. Stephen's Church. This new building utilized the Romanesque Revival architecture style and was built between 1881 and 1883, and has since remained the parish's landmark. Also, Fachsenfeld received its own church, named Sacred Heart in 1895. All Catholic parishes within Aalen are today incorporated into four pastoral care units within the Ostalb Deanery of the Diocese of Rottenburg-Stuttgart; however these units also comprise some parishes outside of Aalen. Pastoral Care Unit two comprises the parishes of Essingen, Dewangen and Fachsenfeld, unit four comprises Hofen and Wasseralfingen, unit five comprises both parishes of Aalen's centre and Hofherrnweiler, unit five comprises Waldhausen, Ebnat, Oberkochen and Unterkochen. Other Christian communities In addition to the two major religions within Aalen, there are also free churches and other communities, including the United Methodist Church, the Baptists, the Seventh-day Adventist Church and the New Apostolic Church. Other religions Until the late 19th century, no Jews were documented within Aalen. In 1886 there were four Jews were living in Aalen, a number that rose to ten in 1900, fell to seven in 1905, and remained so until 1925. Upon the Nazis' rise to power in 1933, seven Jews, including two children, lived in Aalen. During the Kristallnacht in 1938, the vitrines of the three Jewish shops in the town were smashed and their proprietors imprisoned for several weeks. After their release, most Aalen Jews emigrated. The last Jews of Aalen, Fanny Kahn, was forcibly resettled to Oberdorf am Ipf, which had a large Jewish community. Today, a street of Aalen is named after her. The Jew Max Pfeffer returned from Brussels to Aalen in 1948 to continue his shop, but emigrated to Italy in 1967. In Aalen, there is an Islamic Ditib community, which maintains the D.I.T.I.B. Mosque of Aalen (Central Mosque) located at Ulmer Straße. The mosque's construction started on 30 August 2008. The Islamist Millî Görüş organisation maintains the Fatih Mosque, as well at Ulmer Straße. Mergings The present-day make up of Aalen was created on 21 June 1975 by the unification of the cities of Aalen and Wasseralfingen, with the initial name of Aalen-Wasseralfingen. This annexation made Aalen's territory one third larger than its prior size. On 1 July 1975, the name Aalen was revived. Prior to this merger, the town of Aalen had already annexed the following municipalities: 1938: Unterrombach 1 January 1970: Waldhausen 1 July 1972: Ebnat 1 January 1973: Dewangen, Fachsenfeld (including the village of Hangendenbach, which was transferred from Abtsgmünd in 1954) and Unterkochen. The merging of Dewangen nearly doubled the territory of Aalen. Population’s progression and structure During the Middle Ages and the early modern period, Aalen was just a small town with a few hundred inhabitants. The population grew slowly due to numerous wars, famines and epidemics. It was the beginning of the Industrial Revolution in the 19th century where Aalen's growth accelerated. Whereas in 1803, only 1,932 people inhabited the town, in 1905 it had already increased to 10,442. The number continued to rise and reached 15,890 in 1939. The influx of refugees and ethnic Germans from Germany's former eastern territories after World War II pushed the population to 31,814 in 1961. The merger with Wasseralfingen on 21 June 1975 added 14,597 persons and resulted in a total population of 65,165 people. On 30 June 2005, the population, which was officially determined by the Statistical Office of Baden-Württemberg, was 67,125. The following overview shows how the population figures of the borough were ascertained. Until 1823, the figures are mostly estimates, thereafter census results or official updates by the state statistical office. Starting in 1871, the figures were determined by non-uniform method of tabulation using extrapolation. ¹ Census result On 31 December 2008, Aalen had precisely 66,058 inhabitants, of which 33,579 were female and 32,479 were male. The average age of Aalen's inhabitants rose from 40.5 years in 2000 to 42.4 in 2008. Within the borough, 6,312 foreigners resided, which is 9.56 percent. Of them, the largest percentage are from Turkey (38 percent of all foreigners), the second largest group are from Italy (13 percent), followed by Croatians (6 percent) and Serbs (5 percent). The number of married residents fell from 32,948 in 1996 to 31,357 in 2007, while the number of divorced residents rose in the same period from 2,625 to 3,859. The number of single residents slightly increased between 1996 and 2004 from 25,902 to 26,268 and fell slightly until 2007 to 26,147. The number of widowed residents fell from 5,036 in 1996 to 4,783 in 2007. Politics Aalen has arranged a municipal association with Essingen and Hüttlingen. Council Since the local election of 25 May 2014, the town council consists of 51 representatives having a term of five years. The seats are distributed as follows on parties and groups (changes refer to the second last election of 2004): Mayors Since 1374, the mayor and the council maintain the government of the town. In the 16th century, the town had two, sometimes three mayors, and in 1552, the council had 13 members. Later, the head of the administration was reorganized several times. In the Württemberg era, the mayor's title was initially called Bürgermeister, then from 1819 it was Schultheiß, and since 1947 it is Oberbürgermeister. The mayor is elected for a term of eight years, and he is chairman and a voting member of the council. He has one deputy with the official title of Erster Bürgermeister ("first mayor") and one with the official title of Bürgermeister ("mayor"). Heads of town in Aalen since 1802 1802–: Theodor Betzler 1812–1819: Ludwig Hölder 1819–1829: Theodor Betzler 1829: Palm 1829–1848: Philipp Ehmann 1848–1873: Gustav Oesterlein 1873–1900: Julius Bausch 1900–1902: Paul Maier 1903–1934: Friedrich Schwarz 1935–1945: Karl Schübel (NSDAP) 1945–1950: Otto Balluff 1950–1975: Karl Schübel (independent) 1976–2005: Ulrich Pfeifle (SPD) 2005–2013: Martin Gerlach (independent) 2013–2021: Thilo Rentschler (SPD) 2021–: Frederick Brütting (SPD) Coat of arms and flag Aalen's coat of arms depicts a black eagle with a red tongue on golden background, having a red shield on its breast with a bent silver eel on it. Eagle and eel were first acknowledged as Aalen's heraldic animals in the seal of 1385, with the eagle representing the town's imperial immediacy. After the territorial reform, it was bestowed again by the Administrative District of Stuttgart on 16 November 1976. The coat of arms' blazon reads: “In gold, the black imperial eagle, with a red breast shield applied to it, therein a bent silver eel” (In Gold der schwarze Reichsadler, belegt mit einem roten Brustschild, darin ein gekrümmter silberner Aal). Aalen's flag is striped in red and white and contains the coat of arms. The origin of the town's name is uncertain. Matthäus Merian (1593–1650) presumed the name to originate from its location at the Kocher river, where "frequently eels are caught", while Aal is German for "eel". Other explanations point to Aalen as the garrison of an ala during the Roman empire, respectively to an abridgement of the Roman name "Aquileia" as a potential name of the Roman fort, a name that nearby Heidenheim an der Brenz bore as well. Another interpretation points to a Celtic word aa meaning "water". Godparenthood On the occasion of the 1980 Reichsstädter Tage, Aalen took over godparenthood for the more than 3000 ethnic Germans displaced from the Wischau linguistic enclave. 972 of them settled in Aalen in 1946. The "Wischau Linguistic Enclave Society" (Gemeinschaft Wischauer Sprachinsel) regularly organises commemorative meetings in Aalen. Their traditional costumes are stored in the Old Town Hall. Municipal finances According to the 2007 municipal poll by the Baden-Württemberg chapter of the German Taxpayers Federation, municipal tax revenues totalling to 54,755 million Euros (2006) resp. 62,148 million Euros (2007) face the following debts: 2006 total: 109.9 million Euros debts (64.639 million of the finance department and 48.508 million of the municipal enterprises and fund assets) 2007 total: 114.5 million Euros debts (69.448 million of the finance department and 45.052 million of the municipal enterprises and fund assets) Twin towns – sister cities Aalen is twinned with: Saint-Lô, France (1978) Christchurch, United Kingdom (1981) Tatabánya, Hungary (1987) Antakya, Turkey (1995); initiated by Ismail Demirtas, who emigrated in 1962 from Turkey to Aalen and was social adviser for foreign employees Cervia, Italy (2011) The "Twin Towns Society of Aalen" (Städtepartnerschaftsverein Aalen e. V.) promotes friendly relations between Aalen and its twin towns, which comprises mutual exchanges of sports and cultural clubs, schools and other civic institutions. On the occasion of the Reichsstädter Tage, from 11 until 13 September 2009 the first conference of twin towns was held. Culture and sights Theatre The Theater der Stadt Aalen theatre was founded in 1991 and stages 400 to 500 performances a year. Schubart Literary Award The town endowed the "Schubart Literary Award" (Schubart-Literaturpreis) in 1955 in tribute to Christian Friedrich Daniel Schubart, who spent his childhood and youth in Aalen. It is one of the earliest literary awards in Baden-Württemberg and is awarded biennially to German-language writers whose work coincide with Schubart's "liberal and enlightened reasoning". It is compensated with 12,000 Euros. Music Founded in 1958, the "Music School of the Town of Aalen" today has about 1,500 students taught by 27 music instructors in 30 subjects. In 1977, a symphony orchestra was founded in Aalen, which today is called Aalener Sinfonieorchester, and consists mostly of instructors and students of the music school. It performs three public concerts annually: The “New Year’s Concert” in January, the “Symphony Concert” in July and a “Christmas Concert” in December. Beyond that, music festivals regularly take place in Aalen, like the Aalen Jazzfest. The Aalen volunteer fire department has had a marching band since 1952, whose roots date back to 1883. In 1959, the band received its first glockenspiel from TV host Peter Frankenfeld on the occasion of a TV appearance. A famous German rapper, designer and singer, that goes under the name of Cro, was born in Aalen and lived his early years here. Arts The Kunstverein Aalen was founded in 1983 as a non-profit art association and today is located in the Old Town Hall. The institution with more than 400 members focuses on solo and group exhibitions by international artists. It belongs to the Arbeitsgemeinschaft Deutscher Kunstvereine (ADKV), an umbrella organization for non-profit art associations. Museums and memorial sites Museums In the central district of Aalen, there are two museums: The “Aalen Limes Museum" (Limesmuseum Aalen) is located at the place of the largest Roman cavalry fort north of the Alps until about 200 AD. It opened in 1964. The museum exhibits numerous objects from the Roman era. The ruins of the cavalry fort located beside the museum is open to museum visitors. Every other year, a Roman festival is held in the area of the museum (see below). In the Geological-Paleontological Museum located in the historic town hall, there are more than 1500 fossils from the Swabian Jura, including ammonites, ichthyosaurs and corals, displayed. In the Waldhausen district the Heimatstüble museum of local history has an exhibition on agriculture and rural living. In the Wasseralfingen district, there are two more museums: The Museum Wasseralfingen comprises a local history exhibition and an art gallery including works of Hermann Plock, Helmut Schuster and Sieger Köder. Also, the stove plate collection of the Schwäbische Hüttenwerke steel mill is exhibited, with artists, modellers and the production sequence of a cast plate from design to final product being presented. Memorial sites There is memorial stone at the Schillerlinde tree above Wasseralfingen's ore pit dedicated to four prisoners of the subcamp of Natzweiler-Struthof concentration camp killed there. Also in Wasseralfingen, in the cemetery a memorial with the Polish inscription "To the victims of Hitler" which commemorates the deceased forced labourers buried there. In 1954, on the Schillerhöhe hill the town erected a bell tower as a memorial to Aalen's victims of both world wars and to the displacement of ethnic Germans. The tower was planned by Emil Leo, the bell was endowed by Carl Schneider. The tower is open on request. Every evening at 18:45 (before 2003: at 19:45), the memorial's bell rings. Buildings Churches The town centre is dominated by the Evangelical-Lutheran St. Nicholas' Church in the heart of the pedestrian area. The church, in its present shape being built between 1765 and 1767, is the only major Late Baroque building in Aalen and is the main church of the Evangelical-Lutheran parish of Aalen. St. John's Church is located inside of St. John's cemetery in the western centre. The building presumably is from the 9th century and thus is one of Württemberg's oldest existing churches. The interior features frescos from the early 13th century. For other churches in Aalen, see the Religions section. Historic Town Hall with "Spy" The Historic Town Hall was originally built in the 14th century. After the fire of 1634, it was re-constructed in 1636. This building received a clock from Lauterburg, and the Imperial City of Nuremberg donated a Carillon. It features a figurine of the "Spy of Aalen" and historically displayed other figurines, however the latter ones were lost by a fire in 1884. Since then, the Spy resides inside the reconstructed tower and has become a symbol of the town. The building was used as the town hall until 1907. Since 1977, the Geological-Paleontological Museum resides in the Historic Town Hall. According to legend, the citizens of Aalen owe the "Spy of Aalen" (Spion von Aalen) their town having been spared from destruction by the emperor's army: The Imperial City of Aalen once was were in quarrel with the emperor, and his army was shortly before the gates to take the town. The people of Aalen got scared and thus dispatched their “most cunning” one out into the enemy’s camp to spy out the strength of their troops. Without any digression, he went straight into the middle of the enemy camp, which inescapably led to him being seized and presented to the emperor. When the emperor asked him what he had lost here, he answered in Swabian German: "Don't frighten, high lords, I just want to peek how many cannons and other war things you've got, since I am the spy of Aalen". The emperor laughed upon such a blatancy and acted naïvety, steered him all through the camp and then sent him back home. Soon the emperor withdrew with his army as he thought a town such wise guys reside in deserved being spared. Old Town Hall The earliest record of the Old Town Hall was in 1575. Its outside wall features the oldest known coat

Today, a street of Aalen is named after her. The Jew Max Pfeffer returned from Brussels to Aalen in 1948 to continue his shop, but emigrated to Italy in 1967. In Aalen, there is an Islamic Ditib community, which maintains the D.I.T.I.B. Mosque of Aalen (Central Mosque) located at Ulmer Straße. The mosque's construction started on 30 August 2008. The Islamist Millî Görüş organisation maintains the Fatih Mosque, as well at Ulmer Straße. Mergings The present-day make up of Aalen was created on 21 June 1975 by the unification of the cities of Aalen and Wasseralfingen, with the initial name of Aalen-Wasseralfingen. This annexation made Aalen's territory one third larger than its prior size. On 1 July 1975, the name Aalen was revived. Prior to this merger, the town of Aalen had already annexed the following municipalities: 1938: Unterrombach 1 January 1970: Waldhausen 1 July 1972: Ebnat 1 January 1973: Dewangen, Fachsenfeld (including the village of Hangendenbach, which was transferred from Abtsgmünd in 1954) and Unterkochen. The merging of Dewangen nearly doubled the territory of Aalen. Population’s progression and structure During the Middle Ages and the early modern period, Aalen was just a small town with a few hundred inhabitants. The population grew slowly due to numerous wars, famines and epidemics. It was the beginning of the Industrial Revolution in the 19th century where Aalen's growth accelerated. Whereas in 1803, only 1,932 people inhabited the town, in 1905 it had already increased to 10,442. The number continued to rise and reached 15,890 in 1939. The influx of refugees and ethnic Germans from Germany's former eastern territories after World War II pushed the population to 31,814 in 1961. The merger with Wasseralfingen on 21 June 1975 added 14,597 persons and resulted in a total population of 65,165 people. On 30 June 2005, the population, which was officially determined by the Statistical Office of Baden-Württemberg, was 67,125. The following overview shows how the population figures of the borough were ascertained. Until 1823, the figures are mostly estimates, thereafter census results or official updates by the state statistical office. Starting in 1871, the figures were determined by non-uniform method of tabulation using extrapolation. ¹ Census result On 31 December 2008, Aalen had precisely 66,058 inhabitants, of which 33,579 were female and 32,479 were male. The average age of Aalen's inhabitants rose from 40.5 years in 2000 to 42.4 in 2008. Within the borough, 6,312 foreigners resided, which is 9.56 percent. Of them, the largest percentage are from Turkey (38 percent of all foreigners), the second largest group are from Italy (13 percent), followed by Croatians (6 percent) and Serbs (5 percent). The number of married residents fell from 32,948 in 1996 to 31,357 in 2007, while the number of divorced residents rose in the same period from 2,625 to 3,859. The number of single residents slightly increased between 1996 and 2004 from 25,902 to 26,268 and fell slightly until 2007 to 26,147. The number of widowed residents fell from 5,036 in 1996 to 4,783 in 2007. Politics Aalen has arranged a municipal association with Essingen and Hüttlingen. Council Since the local election of 25 May 2014, the town council consists of 51 representatives having a term of five years. The seats are distributed as follows on parties and groups (changes refer to the second last election of 2004): Mayors Since 1374, the mayor and the council maintain the government of the town. In the 16th century, the town had two, sometimes three mayors, and in 1552, the council had 13 members. Later, the head of the administration was reorganized several times. In the Württemberg era, the mayor's title was initially called Bürgermeister, then from 1819 it was Schultheiß, and since 1947 it is Oberbürgermeister. The mayor is elected for a term of eight years, and he is chairman and a voting member of the council. He has one deputy with the official title of Erster Bürgermeister ("first mayor") and one with the official title of Bürgermeister ("mayor"). Heads of town in Aalen since 1802 1802–: Theodor Betzler 1812–1819: Ludwig Hölder 1819–1829: Theodor Betzler 1829: Palm 1829–1848: Philipp Ehmann 1848–1873: Gustav Oesterlein 1873–1900: Julius Bausch 1900–1902: Paul Maier 1903–1934: Friedrich Schwarz 1935–1945: Karl Schübel (NSDAP) 1945–1950: Otto Balluff 1950–1975: Karl Schübel (independent) 1976–2005: Ulrich Pfeifle (SPD) 2005–2013: Martin Gerlach (independent) 2013–2021: Thilo Rentschler (SPD) 2021–: Frederick Brütting (SPD) Coat of arms and flag Aalen's coat of arms depicts a black eagle with a red tongue on golden background, having a red shield on its breast with a bent silver eel on it. Eagle and eel were first acknowledged as Aalen's heraldic animals in the seal of 1385, with the eagle representing the town's imperial immediacy. After the territorial reform, it was bestowed again by the Administrative District of Stuttgart on 16 November 1976. The coat of arms' blazon reads: “In gold, the black imperial eagle, with a red breast shield applied to it, therein a bent silver eel” (In Gold der schwarze Reichsadler, belegt mit einem roten Brustschild, darin ein gekrümmter silberner Aal). Aalen's flag is striped in red and white and contains the coat of arms. The origin of the town's name is uncertain. Matthäus Merian (1593–1650) presumed the name to originate from its location at the Kocher river, where "frequently eels are caught", while Aal is German for "eel". Other explanations point to Aalen as the garrison of an ala during the Roman empire, respectively to an abridgement of the Roman name "Aquileia" as a potential name of the Roman fort, a name that nearby Heidenheim an der Brenz bore as well. Another interpretation points to a Celtic word aa meaning "water". Godparenthood On the occasion of the 1980 Reichsstädter Tage, Aalen took over godparenthood for the more than 3000 ethnic Germans displaced from the Wischau linguistic enclave. 972 of them settled in Aalen in 1946. The "Wischau Linguistic Enclave Society" (Gemeinschaft Wischauer Sprachinsel) regularly organises commemorative meetings in Aalen. Their traditional costumes are stored in the Old Town Hall. Municipal finances According to the 2007 municipal poll by the Baden-Württemberg chapter of the German Taxpayers Federation, municipal tax revenues totalling to 54,755 million Euros (2006) resp. 62,148 million Euros (2007) face the following debts: 2006 total: 109.9 million Euros debts (64.639 million of the finance department and 48.508 million of the municipal enterprises and fund assets) 2007 total: 114.5 million Euros debts (69.448 million of the finance department and 45.052 million of the municipal enterprises and fund assets) Twin towns – sister cities Aalen is twinned with: Saint-Lô, France (1978) Christchurch, United Kingdom (1981) Tatabánya, Hungary (1987) Antakya, Turkey (1995); initiated by Ismail Demirtas, who emigrated in 1962 from Turkey to Aalen and was social adviser for foreign employees Cervia, Italy (2011) The "Twin Towns Society of Aalen" (Städtepartnerschaftsverein Aalen e. V.) promotes friendly relations between Aalen and its twin towns, which comprises mutual exchanges of sports and cultural clubs, schools and other civic institutions. On the occasion of the Reichsstädter Tage, from 11 until 13 September 2009 the first conference of twin towns was held. Culture and sights Theatre The Theater der Stadt Aalen theatre was founded in 1991 and stages 400 to 500 performances a year. Schubart Literary Award The town endowed the "Schubart Literary Award" (Schubart-Literaturpreis) in 1955 in tribute to Christian Friedrich Daniel Schubart, who spent his childhood and youth in Aalen. It is one of the earliest literary awards in Baden-Württemberg and is awarded biennially to German-language writers whose work coincide with Schubart's "liberal and enlightened reasoning". It is compensated with 12,000 Euros. Music Founded in 1958, the "Music School of the Town of Aalen" today has about 1,500 students taught by 27 music instructors in 30 subjects. In 1977, a symphony orchestra was founded in Aalen, which today is called Aalener Sinfonieorchester, and consists mostly of instructors and students of the music school. It performs three public concerts annually: The “New Year’s Concert” in January, the “Symphony Concert” in July and a “Christmas Concert” in December. Beyond that, music festivals regularly take place in Aalen, like the Aalen Jazzfest. The Aalen volunteer fire department has had a marching band since 1952, whose roots date back to 1883. In 1959, the band received its first glockenspiel from TV host Peter Frankenfeld on the occasion of a TV appearance. A famous German rapper, designer and singer, that goes under the name of Cro, was born in Aalen and lived his early years here. Arts The Kunstverein Aalen was founded in 1983 as a non-profit art association and today is located in the Old Town Hall. The institution with more than 400 members focuses on solo and group exhibitions by international artists. It belongs to the Arbeitsgemeinschaft Deutscher Kunstvereine (ADKV), an umbrella organization for non-profit art associations. Museums and memorial sites Museums In the central district of Aalen, there are two museums: The “Aalen Limes Museum" (Limesmuseum Aalen) is located at the place of the largest Roman cavalry fort north of the Alps until about 200 AD. It opened in 1964. The museum exhibits numerous objects from the Roman era. The ruins of the cavalry fort located beside the museum is open to museum visitors. Every other year, a Roman festival is held in the area of the museum (see below). In the Geological-Paleontological Museum located in the historic town hall, there are more than 1500 fossils from the Swabian Jura, including ammonites, ichthyosaurs and corals, displayed. In the Waldhausen district the Heimatstüble museum of local history has an exhibition on agriculture and rural living. In the Wasseralfingen district, there are two more museums: The Museum Wasseralfingen comprises a local history exhibition and an art gallery including works of Hermann Plock, Helmut Schuster and Sieger Köder. Also, the stove plate collection of the Schwäbische Hüttenwerke steel mill is exhibited, with artists, modellers and the production sequence of a cast plate from design to final product being presented. Memorial sites There is memorial stone at the Schillerlinde tree above Wasseralfingen's ore pit dedicated to four prisoners of the subcamp of Natzweiler-Struthof concentration camp killed there. Also in Wasseralfingen, in the cemetery a memorial with the Polish inscription "To the victims of Hitler" which commemorates the deceased forced labourers buried there. In 1954, on the Schillerhöhe hill the town erected a bell tower as a memorial to Aalen's victims of both world wars and to the displacement of ethnic Germans. The tower was planned by Emil Leo, the bell was endowed by Carl Schneider. The tower is open on request. Every evening at 18:45 (before 2003: at 19:45), the memorial's bell rings. Buildings Churches The town centre is dominated by the Evangelical-Lutheran St. Nicholas' Church in the heart of the pedestrian area. The church, in its present shape being built between 1765 and 1767, is the only major Late Baroque building in Aalen and is the main church of the Evangelical-Lutheran parish of Aalen. St. John's Church is located inside of St. John's cemetery in the western centre. The building presumably is from the 9th century and thus is one of Württemberg's oldest existing churches. The interior features frescos from the early 13th century. For other churches in Aalen, see the Religions section. Historic Town Hall with "Spy" The Historic Town Hall was originally built in the 14th century. After the fire of 1634, it was re-constructed in 1636. This building received a clock from Lauterburg, and the Imperial City of Nuremberg donated a Carillon. It features a figurine of the "Spy of Aalen" and historically displayed other figurines, however the latter ones were lost by a fire in 1884. Since then, the Spy resides inside the reconstructed tower and has become a symbol of the town. The building was used as the town hall until 1907. Since 1977, the Geological-Paleontological Museum resides in the Historic Town Hall. According to legend, the citizens of Aalen owe the "Spy of Aalen" (Spion von Aalen) their town having been spared from destruction by the emperor's army: The Imperial City of Aalen once was were in quarrel with the emperor, and his army was shortly before the gates to take the town. The people of Aalen got scared and thus dispatched their “most cunning” one out into the enemy’s camp to spy out the strength of their troops. Without any digression, he went straight into the middle of the enemy camp, which inescapably led to him being seized and presented to the emperor. When the emperor asked him what he had lost here, he answered in Swabian German: "Don't frighten, high lords, I just want to peek how many cannons and other war things you've got, since I am the spy of Aalen". The emperor laughed upon such a blatancy and acted naïvety, steered him all through the camp and then sent him back home. Soon the emperor withdrew with his army as he thought a town such wise guys reside in deserved being spared. Old Town Hall The earliest record of the Old Town Hall was in 1575. Its outside wall features the oldest known coat of arms, which is of 1664. Until 1851, the building also housed the Krone-Post hotel, which coincided with being a station of the Thurn und Taxis postal company. It has housed many notable persons. Thus the so-called "Napoleon Window" with its "N" painted on reminds of the stay of French emperor Napoleon Bonaparte in 1805. According to legend, he rammed his head so hard it bled on this window, when he was startled by the noise of his soldiers ridiculing the "Spy of Aalen". The building was used as Aalen's town hall from 1907 until 1975. Today it houses a cabaret café and the stage of the Theatre of the Town of Aalen. The town has adopted the Wischau Linguistic Enclave Society due to their godparenthood and stores their traditional costumes in the building. Bürgerspital The Bürgerspital ("Civic Asylum") is a timber-frame house erected on Spritzenhausplatz ("Fire Engine House Square") in 1702. Until 1873, it was used as civic hospital, then, later as a retirement home. After a comprehensive renovation in 1980 it was turned into a senior citizen's community centre. Limes-Thermen On a slope of the Langert mountain, south of the town, the Limes-Thermen ("Limes Thermae") hot springs are located. They were built in ancient Roman style and opened in 1985. The health spa is supplied with water about . Market square The market square is the historic hub of Aalen and runs along about from the town hall in the south to the Historic Town Hall and the Old Town Hall in the north, where it empties into Radgasse alley. Since 1809, it is site of the weekly market on Wednesday and Saturday. About in front of the Reichsstädter Brunnen fountain at the town hall, the coats of arms of Aalen, its twinned cities and of the Wischau linguistic enclave are paved into the street as mosaic. Market fountain In 1705, for the water supply of Aalen a well casing was erected at the northern point of the market square, in front of the Historic Town Hall. It was a present of duke Eberhard Louis. The fountain bore a statue of emperor Joseph I., who was enthroned in 1705 and in 1707 renewed Aalen's Imperial City privileges. The fountain was supplied via a wooden pipe. Excessive water was dissipated through ditches branched from Kocher river. When in the early 1870s Aalen's water network was constructed, the fountain was replaced by a smaller fountain about distant. In 1975, the old market fountain was re-erected in baroque style. It bears a replica of the emperor's statue, with the original statue exhibited in the new town hall's lobby. The cast iron casing plates depict the 1718 coat of arms of the Duchy of Württemberg and the coats of arms of Aalen and of the merged municipalities. Reichsstädter Brunnen The Reichsstädter Brunnen fountain ("Imperial Civic Fountain") is located in front of the town hall at the southern point of the market square. It was created by sculptor Fritz Nuss in 1977 to commemorate Aalen's time as an Imperial City (1360–1803). On its circumference is a frieze showing bronze figurines illustrating the town's history. Radgasse The Radgasse ("Wheel Alley") features Aalen's oldest façade. Originally a small pond was on its side. The buildings were erected between 1659 and 1662 for peasants with citizenry privileges and renovated in the mid-1980s. The namesake for the alley was the "Wheel" tavern, which was to be found at the site of today's address Radgasse 15. Tiefer Stollen The former iron ore pit Wilhelm at Braunenberg hill was converted into the Tiefer Stollen tourist mine in order to remind of the old-day miners' efforts and to maintain it as a memorial of early industrialisation in the Aalen area. It has a mining museum open for visitors, and a mine railway takes visitors deep into the mountain. The Town of Aalen, a sponsorship association, and many citizens volunteered several thousand hours of labour to put the mine into its current state. As far as possible, things were left in the original state. In 1989, a sanitary gallery was established where respiratory diseases are treated within rest cures. Thus the Aalen village of Röthard, where the gallery is located, was awarded the title of "Place with sanitary gallery service" in 2004. Observatory The Aalen Observatory was built in 1969 as school observatory for the Schubart Gymnasium. In 2001, it was converted to a public observatory. Since then, it has been managed by the Astronomische Arbeitsgemeinschaft Aalen ("Aalen Astronomical Society"). It is located on Schillerhöhe hill and features two refractive telescopes. They were manufactured by Carl Zeiss AG which has its headquarters in nearby Oberkochen and operates a manufacturing works in Aalen (see below). In the observatory, guided tours and lectures are held regularly. Windpark Waldhausen The Windpark Waldhausen wind farm began operations in early 2007. It consists of seven REpower MM92 wind turbines with a nameplate capacity of 2 MW each. The hub height of each wind turbine is , with a rotor diameter of . Aalbäumle observation tower The tall Aalbäumle observation tower is built atop Langert mountain. This popular hiking destination was built in 1898 and was remodelled in 1992. It features a good view over Aalen and the Welland region, up to the Rosenstein mountain and Ellwangen. Beneath the tower, an adventure playground and a cabin is located. A flag on the tower signals whether the cabin's restaurant is open. Natural monuments The Baden-Württemberg State Institute for Environment, Measurements and Natural Conservation has laid out six protected landscapes in Aalen (the Swabian Jura escarpment between Lautern and Aalen with adjacent territories, the Swabian Jura escarpment between Unterkochen and Baiershofen, the Hilllands around Hofen, the Kugeltal and Ebnater Tal valleys with parts of Heiligental valley and adjacent territories, Laubachtal valley and Lower Lein Valley with side valleys), two sanctuary forests (Glashütte and Kocher Origin), 65 extensive natural monuments, 30 individual natural monuments and the following two protected areas: The large Dellenhäule protected area between Aalen's Waldhausen district and Neresheim's Elchingen district, created in 1969, is a sheep pasture with juniper and wood pasture of old willow oaks. The large Goldshöfer Sande protected area was established in 2000 and is situated between Aalen's Hofen district and Hüttlingen. The sands on the hill originated from the Early Pleistocene are of geological importance, and the various grove structures offer habitat to severely endangered bird species. Sports The football team, VfR Aalen, was founded in 1921 and played in the 2nd German League between 2012 and 2015, after which they were relegated to 3. Liga. Its playing venue is the Scholz-Arena situated in the west of the town, which bore the name Städtisches Waldstadion Aalen ("Civic Forest Stadium of Aalen") until 2008. From 1939 until 1945, the VfR played in the Gauliga Württemberg, then one of several parallel top-ranking soccer leagues of Germany. The KSV Aalen wrestles in the Wrestling Federal League. It was German champion in team wrestling in 2010. Its predecessor, the KSV Germania Aalen disbanded in 2005, was German champion eight times and runner-up five times since 1976. Another Aalen club, the TSV Dewangen, wrestled in the Federal League until 2009. Two American sports, American Football and Baseball, are pursued by the MTV Aalen. Volleyball has been gaining in popularity in Aalen for years. The first men's team of DJK Aalen accomplished qualification for regional league in the season of 2008/09. The Ostalb ski lifts are located south of the town centre, at the northern slope of the Swabian Jura. The skiing area comprises two platter lifts that have a vertical rise of , with two runs with lengths of and a beginners' run. Regular events Reichsstädter Tage Since 1975, Reichsstädter Tage ("Imperial City days") festival is held annually in the town centre on the second weekend in September. It is deemed the largest festival of the Ostwürttemberg region, and is associated with a shopping Sunday in accordance with the Ladenschlussgesetz code. The festival is also attended by delegations from the twinned cities. On the town hall square, on Sunday an ecumenical service is held. Roman Festival The international Roman Festival (Römertage) are held biannially on the site of the former Roman fort and the modern Limes museum. The festival's ninth event in 2008 was attended by around 11,000 people. Aalen Jazz Festival Annually during the second week of November, the Aalen Jazz Festival brings known and unknown artists to Aalen. It has already featured musicians like Miles Davis, B. B. King, Ray Charles, David Murray, McCoy Tyner, Al Jarreau, Esbjörn Svensson and Albert Mangelsdorff. The festival is complemented by individual concerts in spring and summer, and, including the individual concerts, comprises around 25 concerts with a total of about 13,000 visitors. Economy and infrastructure In 2008 there were 30,008 employees liable to social insurance living in Aalen. 13,946 (46.5 percent) were employed in the manufacturing sector, 4,715 (15.7 percent) in commerce, catering, hotels and transport, and 11,306 (37.7 percent) in other services. Annually 16,000 employees commute to work, with about 9,000 living in the town and commuting out. Altogether in Aalen there are about 4,700 business enterprises, 1,100 of them being registered in the trade register. The others comprise 2,865 small enterprises and 701 craft enterprises. In Aalen, metalworking is the predominant industry, along with machine-building. Other industries include optics, paper, information technology, chemicals, textiles, medical instruments, pharmaceuticals, and food. Notable enterprises include SHW Automotive (originating from the former Schwäbische Hüttenwerke steel mills and a mill of 1671 in Wasseralfingen), the Alfing Kessler engineering works, the precision tools manufacturer MAPAL Dr. Kress, the snow chain manufacturer RUD Ketten Rieger & Dietz and its subsidiary Erlau, the Gesenkschmiede Schneider forging die smithery, the SDZ Druck und Medien media company, the Papierfabrik Palm paper mill, the alarm system manufacturer Telenot, the laser show provider LOBO electronic and the textile finisher Lindenfarb, which all have their seat in Aalen. A branch in Aalen is maintained by optical systems manufacturer Carl Zeiss headquartered in nearby Oberkochen. Transport Rail Aalen station is a regional railway hub on the Rems Railway from Stuttgart, the Brenz Railway from Ulm, the Upper Jagst Railway to Crailsheim and the Ries Railway to Donauwörth. Until 1972, the Härtsfeld Railway connected Aalen with Dillingen an der Donau via Neresheim. Other railway stations within the town limits are Hofen (b Aalen), Unterkochen, Wasseralfingen and Goldshöfe station. The Aalen-Erlau stop situated in the south is no longer operational. Aalen station is served at two-hour intervals by trains of Intercity line 61 Karlsruhe–Stuttgart–Aalen–Nuremberg. For regional rail travel, Aalen is served by various lines of the Interregio-Express, Regional-Express and Regionalbahn categories. Since the beginning of 2019, the British company Go-Ahead took over the regional railway business of DB Regio in the region surrounding Aalen. The town also operates the Aalen industrial railway (Industriebahn Aalen), which carries about 250 carloads per year. Bus Aalen also is a regional hub in the bus network of OstalbMobil, the transport network of the district Aalen is in. The bus lines are operated and serviced by regional companies like OVA and RBS RegioBus Stuttgart. Street The junctions of Aalen/Westhausen and Aalen/Oberkochen connect Aalen with the Autobahn A7 (Würzburg–Füssen). Federal roads (Bundesstraßen) connecting with Aalen are B 19 (Würzburg–Ulm), B 29 (Waiblingen–Nördlingen) and B 290 (Tauberbischofsheim–Westhausen). The Schwäbische Dichterstraße ("Swabian Poets' Route") tourist route established in 1977/78 leads through Aalen. Several bus lines operate within the borough. The Omnibus-Verkehr Aalen company is one of the few in Germany

of psychiatry and director of the Neurologic and Psychiatric Institute. His health deteriorated shortly after his arrival so that he was hospitalized. Alzheimer died three years later. Auguste Deter In 1901, Alzheimer observed a patient at the Frankfurt asylum named Auguste Deter. The 51-year-old patient had strange behavioral symptoms, including a loss of short-term memory; she became his obsession over the coming years. Auguste Deter was a victim of the politics of the time in the psychiatric community; the Frankfurt asylum was too expensive for her husband. Herr Deter made several requests to have his wife moved to a less expensive facility, but Alzheimer intervened in these requests. Frau Deter, as she was known, remained at the Frankfurt asylum, where Alzheimer had made a deal to receive her records and brain upon her death. On 8 April 1906, Frau Deter died, and Alzheimer had her medical records and brain brought to Munich where he was working in Kraepelin's laboratory. With two Italian physicians, he used the staining techniques of Bielschowsky to identify amyloid plaques and neurofibrillary tangles. These brain anomalies would become identifiers of what later became known as Alzheimer's disease. Another hypothesis offered by Claire O'Brien was that Auguste Deter actually had a vascular dementing disease. Findings Alzheimer discussed his findings on the brain pathology and symptoms of presenile dementia publicly on 3November 1906, at the Tübingen meeting of the Southwest German Psychiatrists. The attendees at this lecture seemed uninterested in what he had to say. The lecturer that followed Alzheimer was to speak on the topic of "compulsive masturbation", which the audience of 88 individuals was so eagerly awaiting that they sent Alzheimer away without any questions or comments on his discovery of the pathology of a type of senile dementia. Following the lecture, Alzheimer published a short paper summarizing his lecture; in 1907 he wrote a larger paper detailing the disease and his findings. The disease would not become known as Alzheimer's disease until 1910, when Kraepelin named it so in the chapter on "Presenile and Senile Dementia" in the 8th edition of his Handbook of Psychiatry. By 1911, his description of the disease was being used by European physicians to diagnose patients in the US. Contemporaries American Solomon Carter Fuller gave a report similar to that of Alzheimer at a lecture five months before Alzheimer. Oskar Fischer was a fellow German psychiatrist, 12 years Alzheimer's junior, who reported 12 cases of senile dementia in 1907 around the time that Alzheimer published his short paper summarizing his lecture. Alzheimer and Fischer had different interpretations of the disease, but due to Alzheimer's short life, they never had the opportunity to meet and discuss their ideas. Among the doctors trained by Alois Alzheimer and Emil Kraepelin at Munich in the beginning of the 20th century were the Spanish neuropathologists Nicolás Achúcarro and Gonzalo Rodríguez Lafora, two distinguished disciples of Santiago Ramón y Cajal and members of the Spanish Neurological School. Alzheimer recommended the young and brilliant Nicolás Achúcarro to organize the neuropathological service at the Government Hospital for the Insane, at Washington D.C. (current, NIH), and after two years of work, he was substituted by Gonzalo Rodríguez Lafora. Other interests Alzheimer was known for having a variety of medical interests including vascular diseases of the brain, early dementia, brain tumors, forensic psychiatry and epilepsy. Alzheimer was a leading specialist in histopathology in Europe. His colleagues knew him to be a dedicated professor and cigar smoker. Personal life and death In 1894, Alzheimer married Cecilie Simonette Nathalie Geisenheimer, with whom he had three children. Geisenheimer died in 1901. In August 1912, Alzheimer fell ill on the train on his way to the University of Breslau, where he had been appointed professor of psychiatry in July 1912. Most probably he had a streptococcal

community. For example, both formal and informal arrangements would be made among psychiatrists at asylums and universities to receive cadavers. In 1904, Alzheimer completed his habilitation at Ludwig Maximilian University of Munich, where he was appointed as a professor in 1908. Afterwards, he left Munich for the Silesian Friedrich Wilhelm University in Breslau in 1912, where he accepted a post as professor of psychiatry and director of the Neurologic and Psychiatric Institute. His health deteriorated shortly after his arrival so that he was hospitalized. Alzheimer died three years later. Auguste Deter In 1901, Alzheimer observed a patient at the Frankfurt asylum named Auguste Deter. The 51-year-old patient had strange behavioral symptoms, including a loss of short-term memory; she became his obsession over the coming years. Auguste Deter was a victim of the politics of the time in the psychiatric community; the Frankfurt asylum was too expensive for her husband. Herr Deter made several requests to have his wife moved to a less expensive facility, but Alzheimer intervened in these requests. Frau Deter, as she was known, remained at the Frankfurt asylum, where Alzheimer had made a deal to receive her records and brain upon her death. On 8 April 1906, Frau Deter died, and Alzheimer had her medical records and brain brought to Munich where he was working in Kraepelin's laboratory. With two Italian physicians, he used the staining techniques of Bielschowsky to identify amyloid plaques and neurofibrillary tangles. These brain anomalies would become identifiers of what later became known as Alzheimer's disease. Another hypothesis offered by Claire O'Brien was that Auguste Deter actually had a vascular dementing disease. Findings Alzheimer discussed his findings on the brain pathology and symptoms of presenile dementia publicly on 3November 1906, at the Tübingen meeting of the Southwest German Psychiatrists. The attendees at this lecture seemed uninterested in what he had to say. The lecturer that followed Alzheimer was to speak on the topic of "compulsive masturbation", which the audience of 88 individuals was so eagerly awaiting that they sent Alzheimer away without any questions or comments on his discovery of the pathology of a type of senile dementia. Following the lecture, Alzheimer published a short paper summarizing his lecture; in 1907 he wrote a larger paper detailing the disease and his findings. The disease would not become known as Alzheimer's disease until 1910, when Kraepelin named it so in the chapter on "Presenile and Senile Dementia" in the 8th edition of his Handbook of Psychiatry. By 1911, his description of the disease was being used by European physicians to diagnose patients in the US. Contemporaries American Solomon Carter Fuller gave a report similar to that of Alzheimer at a lecture five months before Alzheimer. Oskar Fischer was a fellow German psychiatrist, 12 years Alzheimer's junior, who reported 12 cases of senile dementia in 1907 around the time that Alzheimer published his short paper summarizing his lecture. Alzheimer and Fischer had different interpretations of the disease, but due to Alzheimer's short life, they never had the opportunity to meet and discuss their ideas. Among the doctors trained by Alois Alzheimer and Emil Kraepelin at Munich in the beginning of the 20th century were the Spanish

"plebiscites". Plebiscites, once passed, were also transcribed into a physical document for storage. While their powers grew over time, it is not always easy to distinguish the difference between their powers, and those of the censors. Occasionally, if a censor was unable to carry out one of his tasks, an aedile would perform the task instead. Curule aediles According to Livy (vi. 42), after the passing of the Licinian rogations in 367 BC, an extra day was added to the Roman games; the plebeian aediles refused to bear the additional expense, whereupon the patricians offered to undertake it, on condition that they were admitted to the aedileship. The plebeians accepted the offer, and accordingly two curule aediles were appointed—at first from the patricians alone, then from patricians and plebeians in turn, lastly, from either—at the Tribal Assembly under the presidency of the consul. Curule aediles, as formal magistrates, held certain honors that plebeian aediles (who were not technically magistrates), did not hold. Besides having the right to sit on a curule seat (sella curulis) and to wear a toga praetexta, the curule aediles also held the power to issue edicts (jus edicendi). These edicts often pertained to matters such as the regulation of the public markets, or what we might call "economic regulation". Livy suggests, perhaps incorrectly, that both curule as well as plebeian Aediles were sacrosanct. Although the curule aediles always ranked higher than the plebeian, their functions gradually approximated and became practically identical. Within five days after the beginning of their terms, the four aediles (two plebeian, two curule) were required to determine, by lot or by agreement among themselves, what parts of the city each should hold jurisdiction over. Differences between the two There was a distinction between the two sets of aediles when it came to public festivals. Some festivals were plebeian in nature, and thus were under the superintendence of plebeian aediles. Other festivals were supervised exclusively by the curule aediles, and it was often with these festivals that the aediles would spend lavishly. This was often done so as to secure the support of voters in future elections. Because aediles were not reimbursed for any of their public expenditures, most individuals who sought the office were independently wealthy. Since this office was a stepping stone to higher office and the Senate, it helped to ensure that only wealthy individuals (mostly landowners) would win election to high office. These extravagant expenditures began shortly after the end of Second Punic War, and increased as the spoils returned from Rome's new eastern conquests. Even the decadence of the emperors rarely surpassed that of the aediles under the Republic, as could have been seen during Julius Caesar's aedileship. Election to the office Plebeian aediles were elected by the Plebeian Council, usually while under the presidency of a plebeian tribune. Curule aediles were elected by the Tribal Assembly, usually while under the presidency of a consul. Since the plebeian aediles were elected by the plebeians rather than by all of the people of Rome (plebeians as well as patricians), they were not technically magistrates. Before the passage of the Lex Villia Annalis, individuals could run for the aedileship by the time they turned twenty-seven. After the passage of this law in 180 BC, a higher age was set, probably thirty-five. By the 1st century BC, aediles were elected in July, and took office on the first day in January. Powers of the office Cicero (Legg. iii. 3, 7) divides these functions under three heads: (1) Care of the city: the repair and preservation of temples, sewers and aqueducts; street cleansing and paving; regulations regarding traffic, dangerous animals and dilapidated buildings; precautions against fire; superintendence of baths and taverns; enforcement of sumptuary laws; punishment of gamblers and usurers; the care of public morals generally, including the prevention of foreign superstitions and the registration of meretrices. They also punished those who had too large a share of the ager publicus, or kept too many cattle on the state pastures. (2) Care of provisions: investigation of the quality of the articles supplied and the correctness of weights and measures; the purchase of grain for

into a physical document for storage. While their powers grew over time, it is not always easy to distinguish the difference between their powers, and those of the censors. Occasionally, if a censor was unable to carry out one of his tasks, an aedile would perform the task instead. Curule aediles According to Livy (vi. 42), after the passing of the Licinian rogations in 367 BC, an extra day was added to the Roman games; the plebeian aediles refused to bear the additional expense, whereupon the patricians offered to undertake it, on condition that they were admitted to the aedileship. The plebeians accepted the offer, and accordingly two curule aediles were appointed—at first from the patricians alone, then from patricians and plebeians in turn, lastly, from either—at the Tribal Assembly under the presidency of the consul. Curule aediles, as formal magistrates, held certain honors that plebeian aediles (who were not technically magistrates), did not hold. Besides having the right to sit on a curule seat (sella curulis) and to wear a toga praetexta, the curule aediles also held the power to issue edicts (jus edicendi). These edicts often pertained to matters such as the regulation of the public markets, or what we might call "economic regulation". Livy suggests, perhaps incorrectly, that both curule as well as plebeian Aediles were sacrosanct. Although the curule aediles always ranked higher than the plebeian, their functions gradually approximated and became practically identical. Within five days after the beginning of their terms, the four aediles (two plebeian, two curule) were required to determine, by lot or by agreement among themselves, what parts of the city each should hold jurisdiction over. Differences between the two There was a distinction between the two sets of aediles when it came to public festivals. Some festivals were plebeian in nature, and thus were under the superintendence of plebeian aediles. Other festivals were supervised exclusively by the curule aediles, and it was often with these festivals that the aediles would spend lavishly. This was often done so as to secure the support of voters in future elections. Because aediles were not reimbursed for any of their public expenditures, most individuals who sought the office were independently wealthy. Since this office was a stepping stone to higher office and the Senate, it helped to ensure that only wealthy individuals (mostly landowners) would win election to high office. These extravagant expenditures began shortly after the end of Second Punic War, and increased as the spoils returned from Rome's new eastern conquests. Even the decadence of the emperors rarely surpassed that of the aediles under the Republic, as could have been seen during Julius Caesar's aedileship. Election to the office Plebeian aediles were elected by the Plebeian Council, usually while under the presidency of a plebeian tribune. Curule aediles were elected by the Tribal Assembly, usually while under the presidency of a consul. Since the plebeian aediles were elected by the plebeians rather than by all of the people of Rome (plebeians as well as patricians), they were not technically magistrates. Before the passage of the Lex Villia Annalis, individuals could run for the aedileship by the time they turned twenty-seven. After the passage of this law in 180 BC, a higher age was set, probably thirty-five. By the 1st century BC, aediles were elected in July, and took office on the first day in January. Powers of the office Cicero (Legg. iii. 3, 7) divides these functions under three heads: (1) Care of the city: the repair and preservation of temples, sewers and aqueducts; street cleansing and paving; regulations regarding traffic, dangerous animals and dilapidated buildings; precautions against fire; superintendence of baths and taverns; enforcement of sumptuary laws; punishment of gamblers and usurers; the care of public morals generally, including the prevention of foreign superstitions and the registration of meretrices. They also punished those who had too large a share of the ager publicus, or kept too many cattle on the state pastures. (2) Care of provisions: investigation of the quality of the articles supplied and the correctness of

Los Angeles, New York–JFK and San Francisco, New York-JFK and Santa Ana, Boston and Los Angeles, and Miami and Los Angeles. Flagship Business Flagship Business is American's international and transcontinental business class product. It is offered on all Boeing 777-200ERs, Boeing 777-300ERs, Boeing 787-8s, and Boeing 787-9s, as well as select Airbus A321s. All Flagship Business seats are fully lie-flat. Domestic First Class First Class is offered on all domestically configured aircraft. Seats range from in width and have of pitch. Dining options include beverages, and alcohol on all flights, free snacks on flights over , and with meals offered on flights or longer. Premium Economy Premium Economy is American's economy plus product. It is offered on all widebody aircraft. The cabin debuted on the airline's Boeing 787-9s in late 2016 and is also available on Boeing 777-200s and -300s, and Boeing 787-8s. Premium Economy seats are wider than seats in Main Cabin (American's economy cabin) and provide more amenities: Premium Economy customers get two free checked bags, priority boarding, and enhanced food and drink service including free alcohol. This product made American Airlines the first U.S. carrier to offer a four-cabin aircraft. Main Cabin Extra American's economy plus product on narrowbody aircraft are Main Cabin Extra. It is available on most of the mainline fleet and American Eagle regional aircraft with more than 50 seats. Main Cabin Extra seats include greater pitch than is available in Main Cabin, along with free alcoholic beverages. American retained Main Cabin Extra when the new Premium Economy product entered service in late 2016. Main Cabin Main Cabin (Economy Class) is American's economy product, and is found on all mainline and regional aircraft in its fleet. Seats range from in width and have of pitch. American Airlines marketed increased legroom in economy class as "More Room Throughout Coach", also referred to as "MRTC", starting in February 2000. Two rows of economy class seats were removed on domestic narrowbody aircraft, resulting in more than half of all economy seats having a pitch of or more. Amid financial losses, this scheme was discontinued in 2004. On some routes, American also offers Basic Economy, the airline's lowest main cabin fare. Basic Economy is located in the main cabin but comes with restrictions. These restrictions include waiting until check-in for a seat assignment, no upgrades or refunds, and boarding in the last group. Originally Basic Economy passengers could only carry a personal item, but American later revised their Basic Economy policies to allow for a carry-on bag. In May 2017, American announced it would be adding more seats to some of its Boeing 737 MAX jetliners and reducing overall legroom in the basic economy class. The last three rows will lose , going from the current to . The remainder of the economy cabin will have of legroom. Reward programs AAdvantage AAdvantage is the frequent flyer program for American Airlines. It was launched on May 1, 1981, and it remains the largest frequent flyer program with over 67 million members as of 2011. Miles accumulated in the program allow members to redeem tickets, upgrade service class, or obtain free or discounted car rentals, hotel stays, merchandise, or other products and services through partners. The most active members, based on the amount and price of travel booked, are designated AAdvantage Gold, AAdvantage Platinum, AAdvantage Platinum Pro, and AAdvantage Executive Platinum elite members, with privileges such as separate check-in, priority upgrade, and standby processing, or free upgrades. They also receive similar privileges from AA's partner airlines, particularly those in oneworld. AAdvantage co-branded credit cards are also available and offer other benefits. The cards are issued by CitiCards, a subsidiary of Citigroup, and Barclaycard in the United States, by several banks including Butterfield Bank and Scotiabank in the Caribbean, and by Banco Santander in Brazil. AAdvantage allows one-way redemption, starting at 7,500 miles. Admirals Club The Admirals Club was conceived by AA president C.R. Smith as a marketing promotion shortly after he was made an honorary Texas Ranger. Inspired by the Kentucky colonels and other honorary title designations, Smith decided to make particularly valued passengers "admirals" of the "Flagship fleet" (AA called its aircraft "Flagships" at the time). The list of Admirals included many celebrities, politicians, and other VIPs, as well as more "ordinary" customers who had been particularly loyal to the airline. There was no physical Admirals Club until shortly after the opening of LaGuardia Airport. During the airport's construction, New York Mayor Fiorello LaGuardia had an upper-level lounge set aside for press conferences and business meetings. At one such press conference, he noted that the entire terminal was being offered for lease to airline tenants; after a reporter asked whether the lounge would be leased as well, LaGuardia replied that it would, and a vice president of AA immediately offered to lease the premises. The airline then procured a liquor license and began operating the lounge as the "Admirals Club" in 1939. The second Admirals Club opened at Washington National Airport. Because it was illegal to sell alcohol in Virginia at the time, the club contained refrigerators for the use of its members, so they could store their liquor at the airport. For many years, membership in the Admirals Club (and most other airline lounges) was by the airline's invitation. After a passenger sued for discrimination, the club switched to a paid membership program in 1974. Flagship Lounge Though affiliated with the Admirals Club and staffed by many of the same employees, the Flagship Lounge is a separate lounge specifically designed for customers flying in First Class and Business Class on international flights and transcontinental domestic flights, as well as AAdvantage Concierge Key, Executive Platinum, Platinum Pro, and Platinum, as well as Oneworld Emerald and Sapphire frequent flyers. As of May 2019, Flagship Lounges are located at five airports: New York–JFK, Chicago-O'Hare, Miami International, Los Angeles, and Dallas/Fort Worth. Flagship Lounges are planned for London-Heathrow and Philadelphia. Due to the pandemic, not all the Flagship Lounges are open. Corporate affairs Ownership and structure American Airlines, Inc. is publicly traded through its parent company, American Airlines Group Inc., under NASDAQ: AAL , with a market capitalization of about $12 billion as of 2019, and is included in the S&P 500 index. American Eagle is a network of six regional carriers that operate under a codeshare and service agreement with American, operating flights to destinations in the United States, Canada, the Caribbean, and Mexico. Three of these carriers are independent and three are subsidiaries of American Airlines Group: Envoy Air Inc., Piedmont Airlines, Inc., and PSA Airlines Inc. Headquarters American Airlines is headquartered across several buildings in Fort Worth, Texas that it calls the “Robert L. Crandall Campus” in honor of former president and CEO, Robert Crandall. The square-foot, five-building office complex called was designed by Pelli Clarke Pelli Architects. The campus is located on 300 acres, adjacent to Dallas/Fort Worth International Airport, American's fortress hub. Before it was headquartered in Texas, American Airlines was headquartered at 633 Third Avenue in the Murray Hill area of Midtown Manhattan, New York City. In 1979, American moved its headquarters to a site at Dallas/Fort Worth International Airport, which affected up to 1,300 jobs. Mayor of New York City Ed Koch described the move as a "betrayal" of New York City. American moved to two leased office buildings in Grand Prairie, Texas. On January 17, 1983, the airline finished moving into a $150 million ($ when adjusted for inflation), facility in Fort Worth; $147 million (about $ when adjusted for inflation) in Dallas/Fort Worth International Airport bonds financed the headquarters. The airline began leasing the facility from the airport, which owns the facility. Following the merger of US Airways and American Airlines, the new company consolidated its corporate headquarters in Fort Worth, abandoning the US Airways headquarters in Phoenix, AZ. As of 2015, American Airlines is the corporation with the largest presence in Fort Worth. In 2015, American announced that it would build a new headquarters in Fort Worth. Groundbreaking began in the spring of 2016 and occupancy completed in September 2019. The airline plans to house 5,000 new workers in the building. It will be located on a property adjacent to the airline's flight academy and conference and training center, west of Texas State Highway 360, west from the current headquarters. The airline will lease a total of from Dallas–Fort Worth International Airport and this area will include the headquarters. Construction of the new headquarters began after the demolition of the Sabre facility, previously on the site. The airline considered developing a new headquarters in Irving, Texas, on the old Texas Stadium site, before deciding to keep the headquarters in Fort Worth. Corporate identity Logo In 1931, Goodrich Murphy, an American employee, designed the AA logo as an entry in a logo contest. The eagle in the logo was copied from a Scottish hotel brochure. The logo was redesigned by Massimo Vignelli in 1967. Thirty years later, in 1997, American Airlines was able to make its logo Internet-compatible by buying the domain AA.com. AA is also American's two-letter IATA airline designator. On January 17, 2013, American launched a new rebranding and marketing campaign with FutureBrand dubbed, "A New American". This included a new logo, which includes elements of the 1967 logo. American Airlines faced difficulty obtaining copyright registration for their 2013 logo. On June 3, 2016, American Airlines sought to register it with the United States Copyright Office, but in October of that year, the Copyright Office ruled that the logo was ineligible for copyright protection, as it did not pass the threshold of originality, and was thus in the public domain. American requested that the Copyright Office reconsider, but on January 8, 2018, the Copyright Office affirmed its initial determination. After American Airlines submitted additional materials, the Copyright Office reversed its decision on December 7, 2018, and ruled that the logo contained enough creativity to merit copyright protection. Aircraft livery American's early liveries varied widely, but a common livery was adopted in the 1930s, featuring an eagle painted on the fuselage. The eagle became a symbol of the company and inspired the name of American Eagle Airlines. Propeller aircraft featured an international orange lightning bolt running down the length of the fuselage, which was replaced by a simpler orange stripe with the introduction of jets." In the late 1960s, American commissioned designer Massimo Vignelli to develop a new livery. The original design called for a red, white, and blue stripe on the fuselage, and a simple "AA" logo, without an eagle, on the tail; instead, Vignelli created a highly stylized eagle, which remained the company's logo until January 16, 2013. On January 17, 2013, American unveiled a new livery. Before then, American had been the only major U.S. airline to leave most of its aircraft surfaces unpainted. This was because C. R. Smith would not say he liked painted aircraft and refused to use any liveries that involved painting the entire plane. Robert "Bob" Crandall later justified the distinctive natural metal finish by noting that less paint reduced the aircraft's weight, thus saving on fuel costs. In January 2013, American launched a new rebranding and marketing campaign dubbed, "The New American". In addition to a new logo, American Airlines introduced a new livery for its fleet. The airline calls the new livery and branding "a clean and modern update". The current design features an abstract American flag on the tail, along with a silver-painted fuselage, as a throw-back to the old livery. The new design was painted by Leading Edge Aviation Services

Finnair Iberia Japan Airlines Qantas Fleet As of November 2021, American Airlines operates the largest commercial fleet in the world, comprising 862 aircraft from both Boeing and Airbus, with an additional 179 planned or on order. Over 80% of American's aircraft are narrow-bodies, mainly Airbus A320 series and the Boeing 737-800. It is the largest A320 series aircraft operator in the world, as well as the largest operator of the A319 and A321 variants. It is the fourth-largest operator of 737 family aircraft and second-largest operator of the 737-800 variant. American's wide-body aircraft are all Boeing airliners. It is the third-largest operator of the Boeing 787 series and the sixth-largest operator of the Boeing 777 series. American exclusively ordered Boeing aircraft throughout the 2000s. This strategy shifted on July 20, 2011, when American announced the largest combined aircraft order in history for 460 narrow-body jets including 260 aircraft from the Airbus A320 series. Additional Airbus aircraft joined the fleet in 2013 during the US Airways merger, which operated a nearly all Airbus fleet. American Airlines operates aircraft maintenance and repair bases at the Charlotte, Dallas–Fort Worth, Pittsburgh (where all its Airbus narrowbody aircraft are maintained), and Tulsa airports. Cabins Flagship First Flagship First is American's international and transcontinental first class product. It is offered only on Boeing 777-300ERs and select Airbus A321s. The seats fully lie-flat and offer direct aisle access. As with the airline's other premium cabins, Flagship First offers wider food and beverage options, larger seats, and lounge access at certain airports. American offers transcontinental service on routes between New York–JFK and Los Angeles, New York–JFK and San Francisco, New York-JFK and Santa Ana, Boston and Los Angeles, and Miami and Los Angeles. Flagship Business Flagship Business is American's international and transcontinental business class product. It is offered on all Boeing 777-200ERs, Boeing 777-300ERs, Boeing 787-8s, and Boeing 787-9s, as well as select Airbus A321s. All Flagship Business seats are fully lie-flat. Domestic First Class First Class is offered on all domestically configured aircraft. Seats range from in width and have of pitch. Dining options include beverages, and alcohol on all flights, free snacks on flights over , and with meals offered on flights or longer. Premium Economy Premium Economy is American's economy plus product. It is offered on all widebody aircraft. The cabin debuted on the airline's Boeing 787-9s in late 2016 and is also available on Boeing 777-200s and -300s, and Boeing 787-8s. Premium Economy seats are wider than seats in Main Cabin (American's economy cabin) and provide more amenities: Premium Economy customers get two free checked bags, priority boarding, and enhanced food and drink service including free alcohol. This product made American Airlines the first U.S. carrier to offer a four-cabin aircraft. Main Cabin Extra American's economy plus product on narrowbody aircraft are Main Cabin Extra. It is available on most of the mainline fleet and American Eagle regional aircraft with more than 50 seats. Main Cabin Extra seats include greater pitch than is available in Main Cabin, along with free alcoholic beverages. American retained Main Cabin Extra when the new Premium Economy product entered service in late 2016. Main Cabin Main Cabin (Economy Class) is American's economy product, and is found on all mainline and regional aircraft in its fleet. Seats range from in width and have of pitch. American Airlines marketed increased legroom in economy class as "More Room Throughout Coach", also referred to as "MRTC", starting in February 2000. Two rows of economy class seats were removed on domestic narrowbody aircraft, resulting in more than half of all economy seats having a pitch of or more. Amid financial losses, this scheme was discontinued in 2004. On some routes, American also offers Basic Economy, the airline's lowest main cabin fare. Basic Economy is located in the main cabin but comes with restrictions. These restrictions include waiting until check-in for a seat assignment, no upgrades or refunds, and boarding in the last group. Originally Basic Economy passengers could only carry a personal item, but American later revised their Basic Economy policies to allow for a carry-on bag. In May 2017, American announced it would be adding more seats to some of its Boeing 737 MAX jetliners and reducing overall legroom in the basic economy class. The last three rows will lose , going from the current to . The remainder of the economy cabin will have of legroom. Reward programs AAdvantage AAdvantage is the frequent flyer program for American Airlines. It was launched on May 1, 1981, and it remains the largest frequent flyer program with over 67 million members as of 2011. Miles accumulated in the program allow members to redeem tickets, upgrade service class, or obtain free or discounted car rentals, hotel stays, merchandise, or other products and services through partners. The most active members, based on the amount and price of travel booked, are designated AAdvantage Gold, AAdvantage Platinum, AAdvantage Platinum Pro, and AAdvantage Executive Platinum elite members, with privileges such as separate check-in, priority upgrade, and standby processing, or free upgrades. They also receive similar privileges from AA's partner airlines, particularly those in oneworld. AAdvantage co-branded credit cards are also available and offer other benefits. The cards are issued by CitiCards, a subsidiary of Citigroup, and Barclaycard in the United States, by several banks including Butterfield Bank and Scotiabank in the Caribbean, and by Banco Santander in Brazil. AAdvantage allows one-way redemption, starting at 7,500 miles. Admirals Club The Admirals Club was conceived by AA president C.R. Smith as a marketing promotion shortly after he was made an honorary Texas Ranger. Inspired by the Kentucky colonels and other honorary title designations, Smith decided to make particularly valued passengers "admirals" of the "Flagship fleet" (AA called its aircraft "Flagships" at the time). The list of Admirals included many celebrities, politicians, and other VIPs, as well as more "ordinary" customers who had been particularly loyal to the airline. There was no physical Admirals Club until shortly after the opening of LaGuardia Airport. During the airport's construction, New York Mayor Fiorello LaGuardia had an upper-level lounge set aside for press conferences and business meetings. At one such press conference, he noted that the entire terminal was being offered for lease to airline tenants; after a reporter asked whether the lounge would be leased as well, LaGuardia replied that it would, and a vice president of AA immediately offered to lease the premises. The airline then procured a liquor license and began operating the lounge as the "Admirals Club" in 1939. The second Admirals Club opened at Washington National Airport. Because it was illegal to sell alcohol in Virginia at the time, the club contained refrigerators for the use of its members, so they could store their liquor at the airport. For many years, membership in the Admirals Club (and most other airline lounges) was by the airline's invitation. After a passenger sued for discrimination, the club switched to a paid membership program in 1974. Flagship Lounge Though affiliated with the Admirals Club and staffed by many of the same employees, the Flagship Lounge is a separate lounge specifically designed for customers flying in First Class and Business Class on international flights and transcontinental domestic flights, as well as AAdvantage Concierge Key, Executive Platinum, Platinum Pro, and Platinum, as well as Oneworld Emerald and Sapphire frequent flyers. As of May 2019, Flagship Lounges are located at five airports: New York–JFK, Chicago-O'Hare, Miami International, Los Angeles, and Dallas/Fort Worth. Flagship Lounges are planned for London-Heathrow and Philadelphia. Due to the pandemic, not all the Flagship Lounges are open. Corporate affairs Ownership and structure American Airlines, Inc. is publicly traded through its parent company, American Airlines Group Inc., under NASDAQ: AAL , with a market capitalization of about $12 billion as of 2019, and is included in the S&P 500 index. American Eagle is a network of six regional carriers that operate under a codeshare and service agreement with American, operating flights to destinations in the United States, Canada, the Caribbean, and Mexico. Three of these carriers are independent and three are subsidiaries of American Airlines Group: Envoy Air Inc., Piedmont Airlines, Inc., and PSA Airlines Inc. Headquarters American Airlines is headquartered across several buildings in Fort Worth, Texas that it calls the “Robert L. Crandall Campus” in honor of former president and CEO, Robert Crandall. The square-foot, five-building office complex called was designed by Pelli Clarke Pelli Architects. The campus is located on 300 acres, adjacent to Dallas/Fort Worth International Airport, American's fortress hub. Before it was headquartered in Texas, American Airlines was headquartered at 633 Third Avenue in the Murray Hill area of Midtown Manhattan, New York City. In 1979, American moved its headquarters to a site at Dallas/Fort Worth International Airport, which affected up to 1,300 jobs. Mayor of New York City Ed Koch described the move as a "betrayal" of New York City. American moved to two leased office buildings in Grand Prairie, Texas. On January 17, 1983,

suggest augmentation, or adding a drug from a different class. These include lithium and thyroid augmentation, dopamine agonists, sex steroids, NRIs, glucocorticoid-specific agents, or the newer anticonvulsants. A combination strategy involves adding another antidepressant, usually from a different class so as to have effect on other mechanisms. Although this may be used in clinical practice, there is little evidence for the relative efficacy or adverse effects of this strategy. Other tests conducted include the use of psychostimulants as an augmentation therapy. Several studies have shown the efficacy of combining modafinil for treatment-resistant people. It has been used to help combat SSRI-associated fatigue. Long-term use and stopping The effects of antidepressants typically do not continue once the course of medication ends. This results in a high rate of relapse. A 2003 meta-analysis found that 18% of people who had responded to an antidepressant relapsed while still taking it, compared to 41% whose antidepressant was switched for a placebo. A gradual loss of therapeutic benefit occurs in a minority of people during the course of treatment. A strategy involving the use of pharmacotherapy in the treatment of the acute episode, followed by psychotherapy in its residual phase, has been suggested by some studies. For patients who wish to stop their antidepressants, engaging in brief psychological interventions such as Preventive Cognitive Therapy or Mindfulness-based Cognitive Therapy while tapering down has been found to diminish the risk for relapse. Adverse effects Antidepressants can cause various adverse effects, depending on the individual and the drug in question. Almost any medication involved with serotonin regulation has the potential to cause serotonin toxicity (also known as serotonin syndrome) — an excess of serotonin that can induce mania, restlessness, agitation, emotional lability, insomnia and confusion as its primary symptoms. Although the condition is serious, it is not particularly common, generally only appearing at high doses or while on other medications. Assuming proper medical intervention has been taken (within about 24 hours) it is rarely fatal. Antidepressants appear to increase the risk of diabetes by about 1.3 fold. MAOIs tend to have pronounced (sometimes fatal) interactions with a wide variety of medications and over-the-counter drugs. If taken with foods that contain very high levels of tyramine (e.g., mature cheese, cured meats, or yeast extracts), they may cause a potentially lethal hypertensive crisis. At lower doses, the person may only experience a headache due to an increase in blood pressure. In response to these adverse effects, a different type of MAOI has been developed: the reversible inhibitor of monoamine oxidase A (RIMA) class of drugs. Their primary advantage is that they do not require the person to follow a special diet, while being purportedly effective as SSRIs and tricyclics in treating depressive disorders. Tricyclics and SSRI can cause the so-called drug-induced QT prolongation, especially in older adults; this condition can degenerate into a specific type of abnormal heart rhythm called torsades de points which can potentially lead to sudden cardiac arrest. Some antidepressants are also believed to increase thoughts of suicidal ideation. Pregnancy SSRI use in pregnancy has been associated with a variety of risks with varying degrees of proof of causation. As depression is independently associated with negative pregnancy outcomes, determining the extent to which observed associations between antidepressant use and specific adverse outcomes reflects a causative relationship has been difficult in some cases. In other cases, the attribution of adverse outcomes to antidepressant exposure seems fairly clear. SSRI use in pregnancy is associated with an increased risk of spontaneous abortion of about 1.7-fold, and is associated with preterm birth and low birth weight. A systematic review of the risk of major birth defects in antidepressant-exposed pregnancies found a small increase (3% to 24%) in the risk of major malformations and a risk of cardiovascular birth defects that did not differ from non-exposed pregnancies. A study of fluoxetine-exposed pregnancies found a 12% increase in the risk of major malformations that did not reach statistical significance. Other studies have found an increased risk of cardiovascular birth defects among depressed mothers not undergoing SSRI treatment, suggesting the possibility of ascertainment bias, e.g. that worried mothers may pursue more aggressive testing of their infants. Another study found no increase in cardiovascular birth defects and a 27% increased risk of major malformations in SSRI exposed pregnancies. The FDA advises for the risk of birth defects with the use of paroxetine and the MAOI should be avoided. A 2013 systematic review and meta-analysis found that antidepressant use during pregnancy was statistically significantly associated with some pregnancy outcomes, such as gestational age and preterm birth, but not with other outcomes. The same review cautioned that because differences between the exposed and unexposed groups were small, it was doubtful whether they were clinically significant. A neonate (infant less than 28 days old) may experience a withdrawal syndrome from abrupt discontinuation of the antidepressant at birth. Antidepressants have been shown to be present in varying amounts in breast milk, but their effects on infants are currently unknown. Moreover, SSRIs inhibit nitric oxide synthesis, which plays an important role in setting vascular tone. Several studies have pointed to an increased risk of prematurity associated with SSRI use, and this association may be due to an increase risk of pre-eclampsia of pregnancy. Antidepressant-induced mania Another possible problem with antidepressants is the chance of antidepressant-induced mania or hypomania in people with or without a diagnosis of bipolar disorder. Many cases of bipolar depression are very similar to those of unipolar depression. Therefore, the person can be misdiagnosed with unipolar depression and be given antidepressants. Studies have shown that antidepressant-induced mania can occur in 20–40% of people with bipolar disorder. For bipolar depression, antidepressants (most frequently SSRIs) can exacerbate or trigger symptoms of hypomania and mania. Suicide Studies have shown that the use of antidepressants is correlated with an increased risk of suicidal behavior and thinking (suicidality) in those aged under 25. This problem has been serious enough to warrant government intervention by the US Food and Drug Administration (FDA) to warn of the increased risk of suicidality during antidepressant treatment. According to the FDA, the heightened risk of suicidality occurs within the first one to two months of treatment. The National Institute for Health and Care Excellence (NICE) places the excess risk in the "early stages of treatment". A meta-analysis suggests that the relationship between antidepressant use and suicidal behavior or thoughts is age-dependent. Compared with placebo, the use of antidepressants is associated with an increase in suicidal behavior or thoughts among those 25 or younger (OR=1.62). A review of RCTs and epidemiological studies by Healy and Whitaker found an increase of suicidal acts by a factor of 2.4. There is no effect or possibly a mild protective effect among those aged 25 to 64 (OR=0.79). Antidepressant treatment has a protective effect against suicidality among those aged 65 and over (OR=0.37). Sexual Sexual side effects are also common with SSRIs, such as loss of sexual drive, failure to reach orgasm, and erectile dysfunction. Although usually reversible, these sexual side-effects can, in rare cases, continue after the drug has been completely withdrawn. In a study of 1022 outpatients, overall sexual dysfunction with all antidepressants averaged 59.1% with SSRI values between 57% and 73%, mirtazapine 24%, nefazodone 8%, amineptine 7% and moclobemide 4%. Moclobemide, a selective reversible MAO-A inhibitor, does not cause sexual dysfunction, and can actually lead to an improvement in all aspects of sexual function. Biochemical mechanisms suggested as causative include increased serotonin, particularly affecting 5-HT2 and 5-HT3 receptors; decreased dopamine; decreased norepinephrine; blockade of cholinergic and α1adrenergic receptors; inhibition of nitric oxide synthetase; and elevation of prolactin levels. Mirtazapine is reported to have fewer sexual side effects, most likely because it antagonizes 5-HT2 and 5-HT3 receptors and may, in some cases, reverse sexual dysfunction induced by SSRIs by the same mechanism. Bupropion, a weak NDRI and nicotinic antagonist, may be useful in treating reduced libido as a result of SSRI treatment. Changes in weight Changes in appetite or weight are common among antidepressants, but are largely drug-dependent and related to which neurotransmitters they affect. Mirtazapine and paroxetine, for example, may be associated with weight gain and/or increased appetite, while others (such as bupropion and venlafaxine) achieve the opposite effect. The antihistaminic properties of certain TCA- and TeCA-class antidepressants have been shown to contribute to the common side effects of increased appetite and weight gain associated with these classes of medication. Discontinuation syndrome Antidepressant discontinuation syndrome, also called antidepressant withdrawal syndrome, is a condition that can occur following the interruption, reduction, or discontinuation of antidepressant medication. The symptoms may include flu-like symptoms, trouble sleeping, nausea, poor balance, sensory changes, and anxiety. The problem usually begins within three days and may last for several months. Rarely psychosis may occur. A discontinuation syndrome can occur after stopping any antidepressant including selective serotonin re-uptake inhibitors (SSRIs), serotonin–norepinephrine reuptake inhibitors (SNRIs), and tricyclic antidepressants (TCAs). The risk is greater among those who have taken the medication for longer and when the medication in question has a short half-life. The underlying reason for its occurrence is unclear. The diagnosis is based on the symptoms. Methods of prevention include gradually decreasing the dose among those who wish to stop, though it is possible for symptoms to occur with tapering. Treatment may include restarting the medication and slowly decreasing the dose. People may also be switched to the long acting antidepressant fluoxetine which can then be gradually decreased. Approximately 20–50% of people who suddenly stop an antidepressant develop an antidepressant discontinuation syndrome. The condition is generally not serious. Though about half of people with symptoms describe them as severe. Some restart antidepressants due to the severity of the symptoms. Emotional blunting SSRIs appear to cause emotional blunting, or numbness in some people who take them. This is a reduction in extremes of emotion, both positive and negative. While the person may feel less depressed, they may also feel less happiness or empathy. This may be cause for a dose reduction or medication change. The mechanism is unknown. Pharmacology The earliest and probably most widely accepted scientific theory of antidepressant action is the monoamine hypothesis (which can be traced back to the 1950s), which states that depression is due to an imbalance (most often a deficiency) of the monoamine neurotransmitters (namely serotonin, norepinephrine and dopamine). It was originally proposed based on the observation that certain hydrazine anti-tuberculosis agents produce antidepressant effects, which was later linked to their inhibitory effects on monoamine oxidase, the enzyme that catalyses the breakdown of the monoamine neurotransmitters. All currently marketed antidepressants have the monoamine hypothesis as their theoretical basis, with the possible exception of agomelatine which acts on a dual melatonergic-serotonergic pathway. Despite the success of the monoamine hypothesis it has a number of limitations: for one, all monoaminergic antidepressants have a delayed onset of action of at least a week; and secondly, there are a sizeable portion (>40%) of depressed patients that do not adequately respond to monoaminergic antidepressants. A number of alternative hypotheses have been proposed, including the glutamate, neurogenic, epigenetic, cortisol hypersecretion and inflammatory hypotheses. Types Selective serotonin reuptake inhibitors Selective serotonin reuptake inhibitors (SSRIs) are believed to increase the extracellular level of the neurotransmitter serotonin by limiting its reabsorption into the presynaptic cell, increasing the level of serotonin in the synaptic cleft available to bind to the postsynaptic receptor. They have varying degrees of selectivity for the other monoamine transporters, with pure SSRIs having only weak affinity for the norepinephrine and dopamine transporters. SSRIs are the most widely prescribed antidepressants in many countries. The efficacy of SSRIs in mild or moderate cases of depression has been disputed. Serotonin–norepinephrine reuptake inhibitors Serotonin–norepinephrine reuptake inhibitors (SNRIs) are potent inhibitors of the reuptake of serotonin and norepinephrine. These neurotransmitters are known to play an important role in mood. SNRIs can be contrasted with the more widely used selective serotonin reuptake inhibitors (SSRIs), which act mostly upon serotonin alone. The human serotonin transporter (SERT) and norepinephrine transporter (NET) are membrane proteins that are responsible for the reuptake of serotonin and norepinephrine. Balanced dual inhibition of monoamine reuptake can possibly offer advantages over other antidepressants drugs by treating a wider range of symptoms. SNRIs are sometimes also used to treat anxiety disorders, obsessive–compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), chronic neuropathic pain, and fibromyalgia syndrome (FMS), and for the relief of menopausal symptoms. Serotonin modulators and stimulators Serotonin modulator and stimulators (SMSs), sometimes referred to more simply as "serotonin modulators", are a type of drug with a multimodal action specific to the serotonin neurotransmitter system. To be precise, SMSs simultaneously modulate one or more serotonin receptors and inhibit the reuptake of serotonin. The term was coined in reference to the mechanism of action of the serotonergic antidepressant vortioxetine, which acts as a serotonin reuptake inhibitor (SRI), partial agonist of the 5-HT1A receptor, and antagonist of the 5-HT3 and 5-HT7 receptors. However, it can also technically be applied to vilazodone, which is an antidepressant as well and acts as an SRI and 5-HT1A receptor partial agonist. An alternative term is serotonin partial agonist/reuptake inhibitor (SPARI), which can be applied only to vilazodone. Serotonin antagonists and reuptake inhibitors Serotonin antagonist and reuptake inhibitors (SARIs) while mainly used as antidepressants, are also anxiolytics and hypnotics. They act by antagonizing serotonin receptors such as 5-HT2A and inhibiting the reuptake of serotonin, norepinephrine, and/or dopamine. Additionally, most also act as α1-adrenergic receptor antagonists. The majority of the currently marketed SARIs belong to the phenylpiperazine class of compounds. They include trazodone and nefazodone. Norepinephrine reuptake inhibitors Norepinephrine reuptake inhibitors (NRIs or NERIs) are a type of drug that acts as a reuptake inhibitor for the neurotransmitter norepinephrine (noradrenaline) by blocking the action of the norepinephrine transporter (NET). This in turn leads to increased extracellular concentrations of norepinephrine. NRIs are commonly used in the treatment of conditions like ADHD and narcolepsy due to their psychostimulant effects and in obesity due to their appetite suppressant effects. They are also frequently used as antidepressants for the treatment of major depressive disorder, anxiety and panic disorder. Additionally, many drugs of abuse such as cocaine and methylphenidate possess NRI activity, though it is important to mention that NRIs without combined dopamine reuptake inhibitor (DRI) properties are not significantly rewarding and hence are considered to have a negligible abuse potential. However, norepinephrine has been implicated as acting synergistically with dopamine when actions on the two neurotransmitters are combined (e.g., in the case of NDRIs) to produce rewarding effects in psychostimulant drugs of abuse. Norepinephrine-dopamine reuptake inhibitors The only drug used of this class for depression is bupropion. Tricyclic antidepressants The majority of the tricyclic antidepressants (TCAs) act primarily as serotonin–norepinephrine reuptake inhibitors (SNRIs) by blocking the serotonin transporter (SERT) and the norepinephrine transporter (NET), respectively, which results in an elevation of the synaptic concentrations of these neurotransmitters, and therefore an enhancement of neurotransmission. Notably, with the sole exception of amineptine, the TCAs have weak affinity for the dopamine transporter (DAT), and therefore have low efficacy as dopamine reuptake inhibitors (DRIs). Although TCAs are sometimes prescribed for depressive disorders, they have been largely replaced in clinical use in most parts of the world by newer antidepressants such as selective serotonin reuptake inhibitors (SSRIs), serotonin–norepinephrine reuptake inhibitors (SNRIs) and norepinephrine reuptake inhibitors (NRIs). Adverse effects have been found to be of a similar level between TCAs and SSRIs. Tetracyclic antidepressants Tetracyclic antidepressants (TeCAs) are a class of antidepressants that were first introduced in the 1970s. They are named after their chemical structure, which contains four rings of atoms, and are closely related to the tricyclic antidepressants (TCAs), which contain three rings of atoms. Monoamine oxidase inhibitors Monoamine oxidase inhibitors (MAOIs) are chemicals which inhibit the activity of the monoamine oxidase enzyme family. They have a long history of use as medications prescribed for the treatment of depression. They are particularly effective in treating atypical depression. They are also used in the treatment of Parkinson's disease and several other disorders. Because of potentially lethal dietary and drug interactions, monoamine oxidase inhibitors have historically been reserved as a last line of treatment, used only when other classes of antidepressant drugs (for example selective serotonin reuptake inhibitors and tricyclic antidepressants) have failed. MAOIs have been found to be effective in the treatment of panic disorder with agoraphobia, social phobia, atypical depression or mixed anxiety and depression, bulimia, and post-traumatic stress disorder, as well as borderline personality disorder. MAOIs appear to be particularly effective in the management of bipolar depression according to a retrospective-analysis. There are reports of MAOI efficacy in obsessive–compulsive disorder (OCD), trichotillomania, dysmorphophobia, and avoidant personality disorder, but these reports are from uncontrolled case reports. MAOIs can also be used in the treatment of Parkinson's disease by targeting MAO-B in particular (therefore affecting dopaminergic neurons), as well as providing an alternative for migraine prophylaxis. Inhibition of both MAO-A and MAO-B is used in the treatment of clinical depression and anxiety disorders. NMDA receptor antagonists NMDA receptor antagonists like ketamine and esketamine are rapid-acting antidepressants and seem to work via blockade of the ionotropic glutamate NMDA receptor. Others See the list of antidepressants and management of depression for other drugs that are not specifically characterized. Adjuncts Adjunct medications are an umbrella category of substances that increase the potency or "enhance" antidepressants. They work by affecting variables very close to the antidepressant, sometimes affecting a completely different mechanism of action. This may be attempted when depression treatments have not been successful in the past. Common types of adjunct medication techniques generally fall into the following categories: Two or more antidepressants taken together From the same class (affecting the same area of the brain, often at a much higher level) From different classes (affecting multiple parts of the brain not covered simultaneously by either drug alone) An antipsychotic combined with an antidepressant, particularly atypical antipsychotics such as aripiprazole (Abilify), quetiapine (Seroquel), olanzapine (Zyprexa), and risperidone (Risperdal). It is unknown if undergoing psychological therapy at the same time as taking anti-depressants enhances the anti-depressive effect of the medication. Less common adjuncts Lithium has been used to augment antidepressant therapy in those who have failed to respond to antidepressants alone. Furthermore, lithium dramatically decreases the suicide risk in recurrent depression. There is some evidence for the addition of a thyroid hormone, triiodothyronine, in patients with normal thyroid function. Psychopharmacologists have also tried adding a stimulant, in particular, d-amphetamine. However, the use of stimulants in cases of treatment-resistant depression is relatively controversial. A review article published in 2007 found psychostimulants may be effective in treatment-resistant depression with concomitant antidepressant therapy, but a more certain conclusion could not be drawn due to substantial deficiencies in the studies available for consideration, and the somewhat contradictory nature of their results. History Before the 1950s, opioids and amphetamines were commonly used as antidepressants. Their use was later restricted due to their addictive nature and side effects. Extracts from the herb St John's wort have been used as a "nerve tonic" to alleviate depression. St John's wort fell out of favor in most countries through the 19th and 20th centuries, except in Germany, where Hypericum extracts were eventually licensed, packaged and prescribed. Small-scale efficacy trials were carried out in the 1970s and 1980s, and attention grew in the 1990s following a meta-analysis. It remains an over-the-counter drug (OTC) supplement in most countries. Of concern are lead contaminant; on average, lead levels in women in the United States taking St. John's wort are elevated about 20%. Research continues to investigate its active component hyperforin, and to further understand its mode of action. Isoniazid, iproniazid, and imipramine In 1951, Irving Selikoff and , working out of Sea View Hospital on Staten Island, began clinical trials on two new anti-tuberculosis agents developed by Hoffman-LaRoche, isoniazid and iproniazid. Only patients with a poor prognosis were initially treated; nevertheless, their condition improved dramatically. Selikoff and Robitzek noted "a subtle general stimulation ... the patients exhibited renewed vigor and indeed this occasionally served to introduce disciplinary problems." The promise of a cure for tuberculosis in the Sea View Hospital trials was excitedly discussed in the mainstream press. In 1952, learning of the stimulating side effects of isoniazid, the Cincinnati psychiatrist Max Lurie tried it on his patients. In the following year, he and Harry Salzer reported that isoniazid improved depression in two-thirds of their patients and coined the term antidepressant to refer to its action. A similar incident took place in Paris, where Jean Delay, head of psychiatry at Sainte-Anne Hospital, heard of this effect from his pulmonology

benefit occurs in a minority of people during the course of treatment. A strategy involving the use of pharmacotherapy in the treatment of the acute episode, followed by psychotherapy in its residual phase, has been suggested by some studies. For patients who wish to stop their antidepressants, engaging in brief psychological interventions such as Preventive Cognitive Therapy or Mindfulness-based Cognitive Therapy while tapering down has been found to diminish the risk for relapse. Adverse effects Antidepressants can cause various adverse effects, depending on the individual and the drug in question. Almost any medication involved with serotonin regulation has the potential to cause serotonin toxicity (also known as serotonin syndrome) — an excess of serotonin that can induce mania, restlessness, agitation, emotional lability, insomnia and confusion as its primary symptoms. Although the condition is serious, it is not particularly common, generally only appearing at high doses or while on other medications. Assuming proper medical intervention has been taken (within about 24 hours) it is rarely fatal. Antidepressants appear to increase the risk of diabetes by about 1.3 fold. MAOIs tend to have pronounced (sometimes fatal) interactions with a wide variety of medications and over-the-counter drugs. If taken with foods that contain very high levels of tyramine (e.g., mature cheese, cured meats, or yeast extracts), they may cause a potentially lethal hypertensive crisis. At lower doses, the person may only experience a headache due to an increase in blood pressure. In response to these adverse effects, a different type of MAOI has been developed: the reversible inhibitor of monoamine oxidase A (RIMA) class of drugs. Their primary advantage is that they do not require the person to follow a special diet, while being purportedly effective as SSRIs and tricyclics in treating depressive disorders. Tricyclics and SSRI can cause the so-called drug-induced QT prolongation, especially in older adults; this condition can degenerate into a specific type of abnormal heart rhythm called torsades de points which can potentially lead to sudden cardiac arrest. Some antidepressants are also believed to increase thoughts of suicidal ideation. Pregnancy SSRI use in pregnancy has been associated with a variety of risks with varying degrees of proof of causation. As depression is independently associated with negative pregnancy outcomes, determining the extent to which observed associations between antidepressant use and specific adverse outcomes reflects a causative relationship has been difficult in some cases. In other cases, the attribution of adverse outcomes to antidepressant exposure seems fairly clear. SSRI use in pregnancy is associated with an increased risk of spontaneous abortion of about 1.7-fold, and is associated with preterm birth and low birth weight. A systematic review of the risk of major birth defects in antidepressant-exposed pregnancies found a small increase (3% to 24%) in the risk of major malformations and a risk of cardiovascular birth defects that did not differ from non-exposed pregnancies. A study of fluoxetine-exposed pregnancies found a 12% increase in the risk of major malformations that did not reach statistical significance. Other studies have found an increased risk of cardiovascular birth defects among depressed mothers not undergoing SSRI treatment, suggesting the possibility of ascertainment bias, e.g. that worried mothers may pursue more aggressive testing of their infants. Another study found no increase in cardiovascular birth defects and a 27% increased risk of major malformations in SSRI exposed pregnancies. The FDA advises for the risk of birth defects with the use of paroxetine and the MAOI should be avoided. A 2013 systematic review and meta-analysis found that antidepressant use during pregnancy was statistically significantly associated with some pregnancy outcomes, such as gestational age and preterm birth, but not with other outcomes. The same review cautioned that because differences between the exposed and unexposed groups were small, it was doubtful whether they were clinically significant. A neonate (infant less than 28 days old) may experience a withdrawal syndrome from abrupt discontinuation of the antidepressant at birth. Antidepressants have been shown to be present in varying amounts in breast milk, but their effects on infants are currently unknown. Moreover, SSRIs inhibit nitric oxide synthesis, which plays an important role in setting vascular tone. Several studies have pointed to an increased risk of prematurity associated with SSRI use, and this association may be due to an increase risk of pre-eclampsia of pregnancy. Antidepressant-induced mania Another possible problem with antidepressants is the chance of antidepressant-induced mania or hypomania in people with or without a diagnosis of bipolar disorder. Many cases of bipolar depression are very similar to those of unipolar depression. Therefore, the person can be misdiagnosed with unipolar depression and be given antidepressants. Studies have shown that antidepressant-induced mania can occur in 20–40% of people with bipolar disorder. For bipolar depression, antidepressants (most frequently SSRIs) can exacerbate or trigger symptoms of hypomania and mania. Suicide Studies have shown that the use of antidepressants is correlated with an increased risk of suicidal behavior and thinking (suicidality) in those aged under 25. This problem has been serious enough to warrant government intervention by the US Food and Drug Administration (FDA) to warn of the increased risk of suicidality during antidepressant treatment. According to the FDA, the heightened risk of suicidality occurs within the first one to two months of treatment. The National Institute for Health and Care Excellence (NICE) places the excess risk in the "early stages of treatment". A meta-analysis suggests that the relationship between antidepressant use and suicidal behavior or thoughts is age-dependent. Compared with placebo, the use of antidepressants is associated with an increase in suicidal behavior or thoughts among those 25 or younger (OR=1.62). A review of RCTs and epidemiological studies by Healy and Whitaker found an increase of suicidal acts by a factor of 2.4. There is no effect or possibly a mild protective effect among those aged 25 to 64 (OR=0.79). Antidepressant treatment has a protective effect against suicidality among those aged 65 and over (OR=0.37). Sexual Sexual side effects are also common with SSRIs, such as loss of sexual drive, failure to reach orgasm, and erectile dysfunction. Although usually reversible, these sexual side-effects can, in rare cases, continue after the drug has been completely withdrawn. In a study of 1022 outpatients, overall sexual dysfunction with all antidepressants averaged 59.1% with SSRI values between 57% and 73%, mirtazapine 24%, nefazodone 8%, amineptine 7% and moclobemide 4%. Moclobemide, a selective reversible MAO-A inhibitor, does not cause sexual dysfunction, and can actually lead to an improvement in all aspects of sexual function. Biochemical mechanisms suggested as causative include increased serotonin, particularly affecting 5-HT2 and 5-HT3 receptors; decreased dopamine; decreased norepinephrine; blockade of cholinergic and α1adrenergic receptors; inhibition of nitric oxide synthetase; and elevation of prolactin levels. Mirtazapine is reported to have fewer sexual side effects, most likely because it antagonizes 5-HT2 and 5-HT3 receptors and may, in some cases, reverse sexual dysfunction induced by SSRIs by the same mechanism. Bupropion, a weak NDRI and nicotinic antagonist, may be useful in treating reduced libido as a result of SSRI treatment. Changes in weight Changes in appetite or weight are common among antidepressants, but are largely drug-dependent and related to which neurotransmitters they affect. Mirtazapine and paroxetine, for example, may be associated with weight gain and/or increased appetite, while others (such as bupropion and venlafaxine) achieve the opposite effect. The antihistaminic properties of certain TCA- and TeCA-class antidepressants have been shown to contribute to the common side effects of increased appetite and weight gain associated with these classes of medication. Discontinuation syndrome Antidepressant discontinuation syndrome, also called antidepressant withdrawal syndrome, is a condition that can occur following the interruption, reduction, or discontinuation of antidepressant medication. The symptoms may include flu-like symptoms, trouble sleeping, nausea, poor balance, sensory changes, and anxiety. The problem usually begins within three days and may last for several months. Rarely psychosis may occur. A discontinuation syndrome can occur after stopping any antidepressant including selective serotonin re-uptake inhibitors (SSRIs), serotonin–norepinephrine reuptake inhibitors (SNRIs), and tricyclic antidepressants (TCAs). The risk is greater among those who have taken the medication for longer and when the medication in question has a short half-life. The underlying reason for its occurrence is unclear. The diagnosis is based on the symptoms. Methods of prevention include gradually decreasing the dose among those who wish to stop, though it is possible for symptoms to occur with tapering. Treatment may include restarting the medication and slowly decreasing the dose. People may also be switched to the long acting antidepressant fluoxetine which can then be gradually decreased. Approximately 20–50% of people who suddenly stop an antidepressant develop an antidepressant discontinuation syndrome. The condition is generally not serious. Though about half of people with symptoms describe them as severe. Some restart antidepressants due to the severity of the symptoms. Emotional blunting SSRIs appear to cause emotional blunting, or numbness in some people who take them. This is a reduction in extremes of emotion, both positive and negative. While the person may feel less depressed, they may also feel less happiness or empathy. This may be cause for a dose reduction or medication change. The mechanism is unknown. Pharmacology The earliest and probably most widely accepted scientific theory of antidepressant action is the monoamine hypothesis (which can be traced back to the 1950s), which states that depression is due to an imbalance (most often a deficiency) of the monoamine neurotransmitters (namely serotonin, norepinephrine and dopamine). It was originally proposed based on the observation that certain hydrazine anti-tuberculosis agents produce antidepressant effects, which was later linked to their inhibitory effects on monoamine oxidase, the enzyme that catalyses the breakdown of the monoamine neurotransmitters. All currently marketed antidepressants have the monoamine hypothesis as their theoretical basis, with the possible exception of agomelatine which acts on a dual melatonergic-serotonergic pathway. Despite the success of the monoamine hypothesis it has a number of limitations: for one, all monoaminergic antidepressants have a delayed onset of action of at least a week; and secondly, there are a sizeable portion (>40%) of depressed patients that do not adequately respond to monoaminergic antidepressants. A number of alternative hypotheses have been proposed, including the glutamate, neurogenic, epigenetic, cortisol hypersecretion and inflammatory hypotheses. Types Selective serotonin reuptake inhibitors Selective serotonin reuptake inhibitors (SSRIs) are believed to increase the extracellular level of the neurotransmitter serotonin by limiting its reabsorption into the presynaptic cell, increasing the level of serotonin in the synaptic cleft available to bind to the postsynaptic receptor. They have varying degrees of selectivity for the other monoamine transporters, with pure SSRIs having only weak affinity for the norepinephrine and dopamine transporters. SSRIs are the most widely prescribed antidepressants in many countries. The efficacy of SSRIs in mild or moderate cases of depression has been disputed. Serotonin–norepinephrine reuptake inhibitors Serotonin–norepinephrine reuptake inhibitors (SNRIs) are potent inhibitors of the reuptake of serotonin and norepinephrine. These neurotransmitters are known to play an important role in mood. SNRIs can be contrasted with the more widely used selective serotonin reuptake inhibitors (SSRIs), which act mostly upon serotonin alone. The human serotonin transporter (SERT) and norepinephrine transporter (NET) are membrane proteins that are responsible for the reuptake of serotonin and norepinephrine. Balanced dual inhibition of monoamine reuptake can possibly offer advantages over other antidepressants drugs by treating a wider range of symptoms. SNRIs are sometimes also used to treat anxiety disorders, obsessive–compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), chronic neuropathic pain, and fibromyalgia syndrome (FMS), and for the relief of menopausal symptoms. Serotonin modulators and stimulators Serotonin modulator and stimulators (SMSs), sometimes referred to more simply as "serotonin modulators", are a type of drug with a multimodal action specific to the serotonin neurotransmitter system. To be precise, SMSs simultaneously modulate one or more serotonin receptors and inhibit the reuptake of serotonin. The term was coined in reference to the mechanism of action of the serotonergic antidepressant vortioxetine, which acts as a serotonin reuptake inhibitor (SRI), partial agonist of the 5-HT1A receptor, and antagonist of the 5-HT3 and 5-HT7 receptors. However, it can also technically be applied to vilazodone, which is an antidepressant as well and acts as an SRI and 5-HT1A receptor partial agonist. An alternative term is serotonin partial agonist/reuptake inhibitor (SPARI), which can be applied only to vilazodone. Serotonin antagonists and reuptake inhibitors Serotonin antagonist and reuptake inhibitors (SARIs) while mainly used as antidepressants, are also anxiolytics and hypnotics. They act by antagonizing serotonin receptors such as 5-HT2A and inhibiting the reuptake of serotonin, norepinephrine, and/or dopamine. Additionally, most also act as α1-adrenergic receptor antagonists. The majority of the currently marketed SARIs belong to the phenylpiperazine class of compounds. They include trazodone and nefazodone. Norepinephrine reuptake inhibitors Norepinephrine reuptake inhibitors (NRIs or NERIs) are a type of drug that acts as a reuptake inhibitor for the neurotransmitter norepinephrine (noradrenaline) by blocking the action of the norepinephrine transporter (NET). This in turn leads to increased extracellular concentrations of norepinephrine. NRIs are commonly used in the treatment of conditions like ADHD and narcolepsy due to their psychostimulant effects and in obesity due to their appetite suppressant effects. They are also frequently used as antidepressants for the treatment of major depressive disorder, anxiety and panic disorder. Additionally, many drugs of abuse such as cocaine and methylphenidate possess NRI activity, though it is important to mention that NRIs without combined dopamine reuptake inhibitor (DRI) properties are not significantly rewarding and hence are considered to have a negligible abuse potential. However, norepinephrine has been implicated as acting synergistically with dopamine when actions on the two neurotransmitters are combined (e.g., in the case of NDRIs) to produce rewarding effects in psychostimulant drugs of abuse. Norepinephrine-dopamine reuptake inhibitors The only drug used of this class for depression is bupropion. Tricyclic antidepressants The majority of the tricyclic antidepressants (TCAs) act primarily as serotonin–norepinephrine reuptake inhibitors (SNRIs) by blocking the serotonin transporter (SERT) and the norepinephrine transporter (NET), respectively, which results in an elevation of the synaptic concentrations of these neurotransmitters, and therefore an enhancement of neurotransmission. Notably, with the sole exception of amineptine, the TCAs have weak affinity for the dopamine transporter (DAT), and therefore have low efficacy as dopamine reuptake inhibitors (DRIs). Although TCAs are sometimes prescribed for depressive disorders, they have been largely replaced in clinical use in most parts of the world by newer antidepressants such as selective serotonin reuptake inhibitors (SSRIs), serotonin–norepinephrine reuptake inhibitors (SNRIs) and norepinephrine reuptake inhibitors (NRIs). Adverse effects have been found to be of a similar level between TCAs and SSRIs. Tetracyclic antidepressants Tetracyclic antidepressants (TeCAs) are a class of antidepressants that were first introduced in the 1970s. They are named after their chemical structure, which contains four rings of atoms, and are closely related to the tricyclic antidepressants (TCAs), which contain three rings of atoms. Monoamine oxidase inhibitors Monoamine oxidase inhibitors (MAOIs) are chemicals which inhibit the activity of the monoamine oxidase enzyme family. They have a long history of use as medications prescribed for the treatment of depression. They are particularly effective in treating atypical depression. They are also used in the treatment of Parkinson's disease and several other disorders. Because of potentially lethal dietary and drug interactions, monoamine oxidase inhibitors have historically been reserved as a last line of treatment, used only when other classes of antidepressant drugs (for example selective serotonin reuptake inhibitors and tricyclic antidepressants) have failed. MAOIs have been found to be effective in the treatment of panic disorder with agoraphobia, social phobia, atypical depression or mixed anxiety and depression, bulimia, and post-traumatic stress disorder, as well as borderline personality disorder. MAOIs appear to be particularly effective in the management of bipolar depression according to a retrospective-analysis. There are reports of MAOI efficacy in obsessive–compulsive disorder (OCD), trichotillomania, dysmorphophobia, and avoidant personality disorder, but these reports are from uncontrolled case reports. MAOIs can also be used in the treatment of Parkinson's disease by targeting MAO-B in particular (therefore affecting dopaminergic neurons), as well as providing an alternative for migraine prophylaxis. Inhibition of both MAO-A and MAO-B is used in the treatment of clinical depression and anxiety disorders. NMDA receptor antagonists NMDA receptor antagonists like ketamine and esketamine are rapid-acting antidepressants and seem to work via blockade of the ionotropic glutamate NMDA receptor. Others See the list of antidepressants and management of depression for other drugs that are not specifically characterized. Adjuncts Adjunct medications are an umbrella category of substances that increase the potency or "enhance" antidepressants. They work by affecting variables very close to the antidepressant, sometimes affecting a completely different mechanism of action. This may be attempted when depression treatments have not been successful in the past. Common types of adjunct medication techniques generally fall into the following categories: Two or more antidepressants taken together From the same class (affecting the same area of the brain, often at a much higher level) From different classes (affecting multiple parts of the brain not covered simultaneously by either drug alone) An antipsychotic combined with an antidepressant, particularly atypical antipsychotics such as aripiprazole (Abilify), quetiapine (Seroquel), olanzapine (Zyprexa), and risperidone (Risperdal). It is unknown if undergoing psychological therapy at the same time as taking anti-depressants enhances the anti-depressive effect of the medication. Less common adjuncts Lithium has been used to augment antidepressant therapy in those who have failed to respond to antidepressants alone. Furthermore, lithium dramatically decreases the suicide risk in recurrent depression. There is some evidence for the addition of a thyroid hormone, triiodothyronine, in patients with normal thyroid function. Psychopharmacologists have also tried adding a stimulant, in particular, d-amphetamine. However, the use of stimulants in cases of treatment-resistant depression is relatively controversial. A review article published in 2007 found psychostimulants may be effective in treatment-resistant depression with concomitant antidepressant therapy, but a more certain conclusion could not be drawn due to substantial deficiencies in the studies available for consideration, and the somewhat contradictory nature of their results. History Before the 1950s, opioids and amphetamines were commonly used as antidepressants. Their use was later restricted due to their addictive nature and side effects. Extracts from the herb St John's wort have been used as a "nerve tonic" to alleviate depression.

Effect The effect was first discovered by Lise Meitner in 1922; Pierre Victor Auger independently discovered the effect shortly after and is credited with the discovery in most of the scientific community. Upon ejection, the kinetic energy of the Auger electron corresponds to the difference between the energy of the initial electronic transition into the vacancy and the ionization energy for the electron shell from which the Auger electron was ejected. These energy levels depend on the type of atom and the chemical environment in which the atom was located. Auger electron spectroscopy involves the emission of Auger electrons by bombarding a sample with either X-rays or energetic electrons and measures the intensity of Auger electrons that result as a function of the Auger electron energy. The resulting spectra can be used to determine the identity of the emitting atoms and some information about their environment. Auger recombination is

a sample with either X-rays or energetic electrons and measures the intensity of Auger electrons that result as a function of the Auger electron energy. The resulting spectra can be used to determine the identity of the emitting atoms and some information about their environment. Auger recombination is a similar Auger effect which occurs in semiconductors. An electron and electron hole (electron-hole pair) can recombine giving up their energy to an electron in the conduction band, increasing its energy. The reverse effect is known as impact ionization. The Auger effect can impact biological molecules such as DNA. Following the K-shell ionization of the component atoms of DNA, Auger electrons are ejected leading to damage of its sugar-phosphate backbone. Discovery The Auger emission process was observed and published in 1922 by Lise Meitner, an Austrian-Swedish physicist, as a side effect in her competitive search for the nuclear beta electrons with the British physicist Charles Drummond Ellis. The French physicist Pierre Victor Auger independently discovered it in 1923 upon analysis of a Wilson cloud chamber experiment and it became the central part of his PhD work. High-energy X-rays were applied to ionize gas particles and observe photoelectric electrons. The observation of electron tracks that were independent of the frequency

1999) was a Japanese businessman and co-founder of Sony along with Masaru Ibuka. Early life Akio Morita was born in Nagoya, Aichi, Japan. Morita's family was involved in sake, miso and soy sauce production in the village of Kosugaya (currently a part of Tokoname City) on the western coast of Chita Peninsula in Aichi Prefecture since 1665. He was the oldest of four siblings and his father Kyuzaemon trained him as a child to take over the family business. Akio, however, found his true calling in mathematics and physics, and in 1944 he graduated from Osaka Imperial University with a degree in physics. He was later commissioned as a sub-lieutenant in the Imperial Japanese Navy, and served in World War II. During his service, Morita met his future business partner Masaru Ibuka in the Navy's Wartime Research Committee. Sony In September 1945, Ibuka founded a radio repair shop in the bombed out Shirokiya Department Store in Nihonbashi, Tokyo. Morita saw a newspaper article about Ibuka's new venture and, after some correspondence, chose to join him in Tokyo. With funding from Morita's father, they co-founded Tokyo Tsushin Kogyo Kabushiki Kaisha (Tokyo Telecommunications Engineering Corporation, the forerunner of Sony Corporation) in 1946 with about 20 employees and initial capital of ¥190,000. In 1949, the company developed magnetic recording tape and, in 1950, sold the first tape recorder in Japan. Ibuka was instrumental in securing the licensing of transistor technology from Bell Labs to Sony in the 1950s, thus making Sony one of the first companies to apply transistor technology to non-military uses. In 1957, the company produced a pocket-sized radio (the first to be fully transistorized), and in 1958, Morita and Ibuka decided to rename their company Sony Corporation (derived from "sonus"—–Latin for "sound"—–and Sonny-boys the most common American expression). Morita was an advocate for all the products made by Sony. However, since the radio was slightly too big to fit in a shirt pocket, Morita made his employees wear shirts with slightly larger pockets to give the radio a "pocket sized" appearance. Morita founded Sony Corporation of America (SONAM, currently abbreviated as SCA) in 1960. In the process, he was struck by the mobility of employees between American companies, which was unheard of in Japan at that time. When he returned to Japan, he encouraged experienced, middle-aged employees of other companies to reevaluate their careers and consider joining Sony. The company filled many positions in this manner, and inspired other Japanese companies to do the same. In 1961, Sony Corporation was the first Japanese company to be listed on the New York Stock Exchange, in the form of American depositary receipts (ADRs). In March 1968, Morita set up a joint venture in Japan between Sony and CBS Records, with him as president, to manufacture "software" for Sony's hardware. Morita became president of Sony in 1971, taking over from Ibuka who had served from 1950 to 1971. In 1975, Sony released the first Betamax home videocassette recorder, a year before the VHS format came out. Ibuka retired in 1976 and Morita was named chairman of the company. In 1979, the Walkman was introduced, making it one of the world's first portable music players and in 1982, Sony launched the world's first Compact Disc player, the Sony CDP-101, with a Compact Disc (CD) itself, a new data storage format Sony and Philips co-developed. In that year, a 3.5-inch floppy disk structure was introduced by Sony and it soon became the defacto standard. In 1984, Sony launched the Discman series which extended their Walkman brand to portable CD products. Under the vision of Morita, the company aggressively expanded into new businesses. Part

over the family business. Akio, however, found his true calling in mathematics and physics, and in 1944 he graduated from Osaka Imperial University with a degree in physics. He was later commissioned as a sub-lieutenant in the Imperial Japanese Navy, and served in World War II. During his service, Morita met his future business partner Masaru Ibuka in the Navy's Wartime Research Committee. Sony In September 1945, Ibuka founded a radio repair shop in the bombed out Shirokiya Department Store in Nihonbashi, Tokyo. Morita saw a newspaper article about Ibuka's new venture and, after some correspondence, chose to join him in Tokyo. With funding from Morita's father, they co-founded Tokyo Tsushin Kogyo Kabushiki Kaisha (Tokyo Telecommunications Engineering Corporation, the forerunner of Sony Corporation) in 1946 with about 20 employees and initial capital of ¥190,000. In 1949, the company developed magnetic recording tape and, in 1950, sold the first tape recorder in Japan. Ibuka was instrumental in securing the licensing of transistor technology from Bell Labs to Sony in the 1950s, thus making Sony one of the first companies to apply transistor technology to non-military uses. In 1957, the company produced a pocket-sized radio (the first to be fully transistorized), and in 1958, Morita and Ibuka decided to rename their company Sony Corporation (derived from "sonus"—–Latin for "sound"—–and Sonny-boys the most common American expression). Morita was an advocate for all the products made by Sony. However, since the radio was slightly too big to fit in a shirt pocket, Morita made his employees wear shirts with slightly larger pockets to give the radio a "pocket sized" appearance. Morita founded Sony Corporation of America (SONAM, currently abbreviated as SCA) in 1960. In the process, he was struck by the mobility of employees between American companies, which was unheard of in Japan at that time. When he returned to Japan, he encouraged experienced, middle-aged employees of other companies to reevaluate their careers and consider joining Sony. The company filled many positions in this manner, and inspired other Japanese companies to do the same. In 1961, Sony Corporation was the first Japanese company to be listed on the New York Stock Exchange, in the form of American depositary receipts (ADRs). In March 1968, Morita set up a joint venture in Japan between Sony and CBS Records, with him as president, to manufacture "software" for Sony's hardware. Morita became president of Sony in 1971, taking over from Ibuka who had served from 1950 to 1971. In 1975, Sony released the first Betamax home videocassette recorder, a year before the VHS format came out. Ibuka retired in 1976 and Morita was named chairman of the company. In 1979, the Walkman was introduced, making it one of the world's first portable music players and in 1982, Sony launched the world's first Compact Disc player, the Sony CDP-101, with a Compact Disc (CD) itself, a new data storage format Sony and Philips co-developed. In that year, a 3.5-inch floppy disk structure was introduced by Sony and it soon became the defacto standard. In 1984, Sony launched the Discman series which extended their Walkman brand to portable CD

reaction occurs. In an electrolytic cell, the anode is the wire or plate having excess positive charge. Consequently, anions will tend to move towards the anode where they can undergo oxidation. Historically, the anode has also been known as the zincode. Charge flow The terms anode and cathode are not defined by the voltage polarity of electrodes but the direction of current through the electrode. An anode is an electrode through which conventional current (positive charge) flows into the device from an external circuit, while a cathode is an electrode through which conventional current flows out of the device. If the current through the electrodes reverses direction, as occurs for example in a rechargeable battery when it is being charged, the naming of the electrodes as anode and cathode is reversed. Conventional current depends not only on the direction the charge carriers move, but also the carriers' electric charge. The currents outside the device are usually carried by electrons in a metal conductor. Since electrons have a negative charge, the direction of electron flow is opposite to the direction of conventional current. Consequently, electrons leave the device through the anode and enter the device through the cathode. The definition of anode and cathode is different for electrical devices such as diodes and vacuum tubes where the electrode naming is fixed and does not depend on the actual charge flow (current). These devices usually allow substantial current flow in one direction but negligible current in the other direction. Therefore, the electrodes are named based on the direction of this "forward" current. In a diode the anode is the terminal through which current enters and the cathode is the terminal through which current leaves, when the diode is forward biased. The names of the electrodes do not change in cases where reverse current flows through the device. Similarly, in a vacuum tube only one electrode can emit electrons into the evacuated tube due to being heated by a filament, so electrons can only enter the device from the external circuit through the heated electrode. Therefore, this electrode is permanently named the cathode, and the electrode through which the electrons exit the tube is named the anode. Examples The polarity of voltage on an anode with respect to an associated cathode varies depending on the device type and on its operating mode. In the following examples, the anode is negative in a device that provides power, and positive in a device that consumes power: In a discharging battery or galvanic cell (diagram on left), the anode is the negative terminal because it is where conventional current flows into the cell. This inward current is carried externally by electrons moving outwards, negative charge flowing in one direction being electrically equivalent to positive charge flowing in the opposite direction. In a recharging battery, or an electrolytic cell, the anode is the positive terminal, which receives current from an external generator. The current through a recharging battery is opposite to the direction of current during discharge; in other words, the electrode which was the cathode during battery discharge becomes the anode while the battery is recharging. This ambiguity in the anode and cathode designation causes confusion in battery engineering, as is necessary to have the anode and cathode associated with unique physical components. The common convention is to name the electrode of a battery that releases electrons during discharge as the anode or the negative (-) electrode and the electrode that absorbs the electrons as the cathode

not reveal the anode's function any more, but more importantly because as we now know, the Earth's magnetic field direction on which the "anode" term is based is subject to reversals whereas the current direction convention on which the "eisode" term was based has no reason to change in the future. Since the later discovery of the electron, an easier to remember and more durably correct technically although historically false, etymology has been suggested: anode, from the Greek anodos, 'way up', 'the way (up) out of the cell (or other device) for electrons'. Electrolytic anode In electrochemistry, the anode is where oxidation occurs and is the positive polarity contact in an electrolytic cell. At the anode, anions (negative ions) are forced by the electrical potential to react chemically and give off electrons (oxidation) which then flow up and into the driving circuit. Mnemonics: LEO Red Cat (Loss of Electrons is Oxidation, Reduction occurs at the Cathode), or AnOx Red Cat (Anode Oxidation, Reduction Cathode), or OIL RIG (Oxidation is Loss, Reduction is Gain of electrons), or Roman Catholic and Orthodox (Reduction – Cathode, anode – Oxidation), or LEO the lion says GER (Losing electrons is Oxidation, Gaining electrons is Reduction). This process is widely used in metals refining. For example, in copper refining, copper anodes, an intermediate product from the furnaces, are electrolysed in an appropriate solution (such as sulfuric acid) to yield high purity (99.99%) cathodes. Copper cathodes produced using this method are also described as electrolytic copper. Historically, when non-reactive anodes were desired for electrolysis, graphite (called plumbago in Faraday's time) or platinum were chosen. They were found to be some of the least reactive materials for anodes. Platinum erodes very slowly compared to other materials, and graphite crumbles and can produce carbon dioxide in aqueous solutions but otherwise does not participate in the reaction. Battery or galvanic cell anode In a battery or galvanic cell, the anode is the negative electrode from which electrons flow out towards the external part of the circuit. Internally the positively charged cations are flowing away from the anode (even though it is negative and therefore would be expected to attract them, this is due to electrode potential relative to the electrolyte solution being different for the anode and cathode metal/electrolyte systems); but, external to the cell in the circuit, electrons are being pushed out through the negative contact and thus through the circuit by the voltage potential as would be expected. Note: in a galvanic cell, contrary to what occurs in an electrolytic cell, no anions flow to the anode, the internal current being entirely accounted for by the cations flowing away from it (cf drawing). Battery manufacturers may regard the negative electrode as the anode, particularly in their technical literature. Though technically incorrect, it does resolve the problem of which electrode is the anode in a secondary (or rechargeable) cell. Using the traditional definition, the anode switches ends between charge and discharge cycles. Vacuum tube anode In electronic vacuum devices such as a cathode ray tube, the anode is the positively charged electron collector. In a tube, the anode is a charged positive plate that collects the electrons emitted by the cathode through electric attraction. It also accelerates the flow of these electrons. Diode anode In a semiconductor diode, the anode is the P-doped layer which initially supplies holes to the junction. In the junction region, the holes supplied by the anode combine with electrons supplied from the N-doped region, creating a depleted zone. As the P-doped layer supplies holes to the depleted region, negative dopant ions are left behind in the P-doped layer ('P' for positive charge-carrier ions). This creates a base negative charge on the anode. When a positive voltage is applied to anode of the diode from the circuit, more holes are able to be transferred to the depleted region, and this causes the diode to become conductive, allowing current to flow through the circuit. The terms anode and cathode should not be applied to a Zener diode, since it allows flow in either direction, depending on the polarity of the applied potential (i.e. voltage). Sacrificial anode In cathodic protection, a metal anode that is more reactive to the corrosive environment than the metal system to be protected is electrically linked to the protected system. As a result, the metal anode partially corrodes or dissolves instead of the metal system. As an example, an iron or steel ship's hull may be protected by a zinc sacrificial anode, which will dissolve into the seawater and prevent the hull from being corroded. Sacrificial anodes are particularly needed for systems where a static charge is generated by the action of flowing liquids, such as pipelines and watercraft. Sacrificial anodes are also generally used in tank-type water heaters. In 1824 to reduce the impact of this destructive electrolytic action on ships hulls, their fastenings and underwater equipment, the scientist-engineer Humphry Davy developed the first and still most widely used marine electrolysis protection system. Davy installed sacrificial anodes made from a more electrically reactive (less noble) metal attached to the vessel hull and electrically connected to form a cathodic protection circuit. A less obvious example of this type of protection is the process of galvanising iron. This process coats iron structures (such as fencing) with a coating of zinc metal. As long as the zinc remains intact, the iron is protected from the effects of corrosion. Inevitably, the zinc coating becomes breached, either by cracking or physical damage. Once this occurs, corrosive elements act as an electrolyte and the zinc/iron combination as electrodes. The resultant current ensures that the zinc coating is sacrificed but that the base iron does not corrode. Such a coating can protect an iron structure for a few decades, but once the protecting coating is consumed, the iron rapidly corrodes. If, conversely, tin is used to coat steel, when a breach of the coating occurs it actually accelerates oxidation of the iron. Impressed current anode Another cathodic protection is used on the impressed current anode. It is made from titanium and covered with mixed metal oxide. Unlike the sacrificial anode rod, the impressed current anode does not sacrifice its structure. This technology uses an external current provided by a DC source to create the cathodic protection. Impressed current anodes are used in larger structures like pipelines, boats, and water heaters. Related antonym The opposite of an anode is a cathode. When the current through the device is reversed, the electrodes switch functions, so the anode becomes the cathode and the cathode

whole set of lines is drawn quickly enough that the human eye perceives it as one image. The process repeats and next sequential frame is displayed, allowing the depiction of motion. The analog television signal contains timing and synchronization information so that the receiver can reconstruct a two-dimensional moving image from a one-dimensional time-varying signal. The first commercial television systems were black-and-white; the beginning of color television was in the 1950s. A practical television system needs to take luminance, chrominance (in a color system), synchronization (horizontal and vertical), and audio signals, and broadcast them over a radio transmission. The transmission system must include a means of television channel selection. Analog broadcast television systems come in a variety of frame rates and resolutions. Further differences exist in the frequency and modulation of the audio carrier. The monochrome combinations still existing in the 1950s were standardized by the International Telecommunication Union (ITU) as capital letters A through N. When color television was introduced, the chrominance information was added to the monochrome signals in a way that black and white televisions ignore. In this way backward compatibility was achieved. There are three standards for the way the additional color information can be encoded and transmitted. The first was the American NTSC system. The European and Australian PAL and the French and former Soviet Union SECAM standards were developed later and attempt to cure certain defects of the NTSC system. PAL's color encoding is similar to the NTSC systems. SECAM, though, uses a different modulation approach than PAL or NTSC. In principle, all three color encoding systems can be used with any scan line/frame rate combination. Therefore, in order to describe a given signal completely, it's necessary to quote the color system and the broadcast standard as a capital letter. For example, the United States, Canada, Mexico and South Korea use NTSC-M, Japan uses NTSC-J, the UK uses PAL-I, France uses SECAM-L, much of Western Europe and Australia use PAL-B/G, most of Eastern Europe uses SECAM-D/K or PAL-D/K and so on. However, not all of these possible combinations actually exist. NTSC is currently only used with system M, even though there were experiments with NTSC-A (405 line) in the UK and NTSC-N (625 line) in part of South America. PAL is used with a variety of 625-line standards (B, G, D, K, I, N) but also with the North American 525-line standard, accordingly named PAL-M. Likewise, SECAM is used with a variety of 625-line standards. For this reason, many people refer to any 625/25 type signal as PAL and to any 525/30 signal as NTSC, even when referring to digital signals; for example, on DVD-Video, which does not contain any analog color encoding, and thus no PAL or NTSC signals at all. Although a number of different broadcast television systems were in use worldwide, the same principles of operation apply. Displaying an image A cathode-ray tube (CRT) television displays an image by scanning a beam of electrons across the screen in a pattern of horizontal lines known as a raster. At the end of each line, the beam returns to the start of the next line; at the end of the last line, the beam returns to the beginning of the first line at the top of the screen. As it passes each point, the intensity of the beam is varied, varying the luminance of that point. A color television system is similar except there are three beams that scan together and an additional signal known as chrominance controls the color of the spot. When analog television was developed, no affordable technology for storing video signals existed; the luminance signal had to be generated and transmitted at the same time at which it is displayed on the CRT. It was therefore essential to keep the raster scanning in the camera (or other device for producing the signal) in exact synchronization with the scanning in the television. The physics of the CRT require that a finite time interval be allowed for the spot to move back to the start of the next line (horizontal retrace) or the start of the screen (vertical retrace). The timing of the luminance signal must allow for this. The human eye has a characteristic called phi phenomenon. Quickly displaying successive scan images creates the illusion of smooth motion. Flickering of the image can be partially solved using a long persistence phosphor coating on the CRT so that successive images fade slowly. However, slow phosphor has the negative side-effect of causing image smearing and blurring when there is rapid on-screen motion occurring. The maximum frame rate depends on the bandwidth of the electronics and the transmission system, and the number of horizontal scan lines in the image. A frame rate of 25 or 30 hertz is a satisfactory compromise, while the process of interlacing two video fields of the picture per frame is used to build the image. This process doubles the apparent number of video frames per second and further reduces flicker and other defects in transmission. Receiving signals The television system for each country will specify a number of television channels within the UHF or VHF frequency ranges. A channel actually consists of two signals: the picture information is transmitted using amplitude modulation on one carrier frequency, and the sound is transmitted with frequency modulation at a frequency at a fixed offset (typically 4.5 to 6 MHz) from the picture signal. The channel frequencies chosen represent a compromise between allowing enough bandwidth for video (and hence satisfactory picture resolution), and allowing enough channels to be packed into the available frequency band. In practice a technique called vestigial sideband is used to reduce the channel spacing, which would be nearly twice the video bandwidth if pure AM was used. Signal reception is invariably done via a superheterodyne receiver: the first stage is a tuner which selects a television channel and frequency-shifts it to a fixed intermediate frequency (IF). The signal amplifier performs amplification to the IF stages from the microvolt range to fractions of a volt. Extracting the sound At this point the IF signal consists of a video carrier signal at one frequency and the sound carrier at a fixed offset in frequency. A demodulator recovers the video signal. Also at the output of the same demodulator is a new frequency modulated sound carrier at the offset frequency. In some sets made before 1948, this was filtered out, and the sound IF of about 22 MHz was sent to an FM demodulator to recover the basic sound signal. In newer sets, this new carrier at the offset frequency was allowed to remain as intercarrier sound, and it was sent to an FM demodulator to recover the basic sound signal. One particular advantage of intercarrier sound is that when the front panel fine tuning knob is adjusted, the sound carrier frequency does not change with the tuning, but stays at the above-mentioned offset frequency. Consequently, it is easier to tune the picture without losing the sound. So the FM sound carrier is then demodulated, amplified, and used to drive a loudspeaker. Until the advent of the NICAM and MTS systems, television sound transmissions were monophonic. Structure of a video signal The video carrier is demodulated to give a composite video signal containing luminance, chrominance and synchronization signals. The result is identical to the composite video format used by analog video devices such as VCRs or CCTV cameras. To ensure good linearity and thus fidelity, consistent with affordable manufacturing costs of transmitters and receivers, the video carrier is never modulated to the extent that it is shut off altogether. When intercarrier sound was introduced later in 1948, not completely shutting off the carrier had the side effect of allowing intercarrier sound to be economically implemented. Each line of the displayed image is transmitted using a signal as shown above. The same basic format (with minor differences mainly related to timing and the encoding of color) is used for PAL, NTSC, and SECAM television systems. A monochrome signal is identical to a color one, with the exception that the elements shown in color in the diagram (the color burst, and the chrominance signal) are not present. The front porch is a brief (about 1.5 microsecond) period inserted between the end of each transmitted line of picture and the leading edge of the next line's sync pulse. Its purpose was to allow voltage levels to stabilise in older televisions, preventing interference between picture lines. The front porch is the first component of the horizontal blanking interval which also contains the horizontal sync pulse and the back porch. The back porch is the portion of each scan line between the end (rising edge) of the horizontal sync pulse and the start of active video. It is used to restore the black level (300 mV) reference in analog video. In signal processing terms, it compensates for the fall time and settling time following the sync pulse. In color television systems such as PAL and NTSC, this period also includes the colorburst signal. In the SECAM system, it contains the reference subcarrier for each consecutive color difference signal in order to set the zero-color reference. In some professional systems, particularly satellite links between locations, the digital audio is embedded within the line sync pulses of the video signal, to save the cost of renting a second channel. The name for this proprietary system is Sound-in-Syncs. Monochrome video signal extraction The luminance component of a composite video signal varies between 0 V and approximately 0.7 V above the black level. In the NTSC system, there is a blanking signal level used during the front porch and back porch, and a black signal level 75 mV above it; in PAL and SECAM these are identical. In a monochrome receiver, the luminance signal is amplified to drive the control grid in the electron gun of the CRT. This changes the intensity of the electron beam and therefore the brightness of the spot being scanned. Brightness and contrast controls determine the DC shift and amplification, respectively. Color video signal extraction A color signal conveys picture information for each of the red, green, and blue components of an image (see the article on color space for more information). However, these are not simply transmitted as three separate signals, because: such a signal would not be compatible with monochrome receivers (an important consideration when color broadcasting was first introduced). It would also occupy three times the bandwidth of existing television, requiring a decrease in the number of television channels available. Furthermore, typical problems with the signal transmission (such as differing received signal levels between different colors) would produce unpleasant side effects. Instead, the RGB signals are converted into YUV form, where the Y signal represents the lightness and darkness (luminance) of the colors in the image. Because the rendering of colors in this way is the goal of both black and white (monochrome) film and black and white (monochrome) television systems, the Y signal is ideal for transmission as the luminance signal. This ensures a monochrome receiver will display a correct picture in black and white, where a given color is reproduced by a shade of gray that correctly reflects how light or dark the original color is. The U and V signals are "color difference" signals. The U signal is the difference between the B signal and the Y signal, also known as B minus Y (B-Y), and the V signal is the difference between the R signal and the Y signal, also known as R minus Y (R-Y). The U signal then represents how "purplish-blue" or its complementary color "yellowish-green" the color is, and the V signal how "purplish-red" or it's complementary "greenish-cyan" it is. The advantage of this scheme is that the U and V signals are zero when the picture has no color content. Since the human eye is more sensitive to detail in luminance than in color, the U and V signals can be transmitted in a relatively lossy (specifically: bandwidth-limited) way with acceptable results. In the receiver, a single demodulator can extract an additive combination of U plus V. An example is the X demodulator used in the X/Z demodulation system. In that same system, a second demodulator, the Z demodulator, also extracts an additive combination of U plus V, but in a different ratio. The X and Z color difference signals are further matrixed into three color difference signals, (R-Y), (B-Y), and (G-Y). The combinations of usually two, but sometimes three demodulators were: In the end, further matrixing of the above color-difference signals c through f yielded the three color-difference signals, (R-Y), (B-Y), and (G-Y). The R, G, B signals in the receiver needed for the display device (CRT, Plasma display, or LCD display) are electronically derived by matrixing as follows: R is the additive combination of (R-Y) with Y, G is the additive combination of (G-Y) with Y, and B is the additive combination of (B-Y) with Y. All of this is accomplished electronically. It can be seen that in the combining process, the low-resolution portion of the Y signals cancel out, leaving R, G, and B signals able to render a low-resolution image in full color. However, the higher resolution portions of the Y signals do not cancel out, and so are equally present in R, G, and B, producing the higher definition (higher resolution) image detail in monochrome, although it appears to the human eye as a full-color and full resolution picture. In the NTSC and PAL color systems, U and V are transmitted by using quadrature amplitude modulation of a subcarrier. This kind of modulation applies two independent signals to one subcarrier, with the idea that both signals will be recovered independently at the receiving end. Before transmission, the subcarrier itself is removed from the active (visible) portion of the video, and moved, in the form of a burst, to the horizontal blanking portion, which is not directly visible on the screen. (More about the burst below.) For NTSC, the subcarrier is a 3.58 MHz sine wave. For the PAL system it is a 4.43 MHz sine wave. After the above-mentioned quadrature amplitude modulation of the subcarrier, subcarrier sidebands are produced, and the subcarrier itself is filtered out of the visible portion of the video, since it is the subcarrier sidebands that carry all of the U and V information, and the subcarrier itself carries no information. The resulting subcarrier sidebands are also known as "chroma" or "chrominance". Physically, this chrominance signal is a 3.58 MHz (NTSC) or 4.43 MHz (PAL) sine wave which, in response to changing U and V values, changes phase as compared to the subcarrier, and also changes amplitude. As it turns out, the chroma amplitude (when considered together with the Y signal) represents the approximate saturation of a color, and the chroma phase against the subcarrier as reference approximately represents the hue of the color. For particular test colors found in the test color bar pattern, exact amplitudes and phases are sometimes defined for test and troubleshooting purposes only. Although in response to changing U and V values, the chroma sinewave changes phase with respect to the subcarrier, it's not correct to say that the subcarrier is simply "phase modulated". That is because a single sine wave U test signal with QAM produces only one pair of sidebands, whereas real phase modulation under the same test conditions would produce multiple sets of sidebands occupying a more frequency spectrum. In NTSC, the chrominance sine wave has the same average frequency as the subcarrier frequency. But a spectrum analyzer instrument shows that, for transmitted chrominance, the frequency component at the subcarrier frequency is actually zero energy, verifying that the subcarrier was indeed removed before transmission. These sideband frequencies are within the luminance signal band, which is why they are called "subcarrier" sidebands instead of simply "carrier" sidebands. Their exact frequencies were chosen such that (for NTSC), they are midway between two harmonics of the frame repetition rate, thus ensuring that the majority of the power of the luminance signal does not overlap with the power of the chrominance signal. In the British PAL (D) system, the actual chrominance center frequency, with equal lower and upper sidebands, is 4.43361875 MHz, a direct multiple of the scan rate frequency. This frequency was chosen to minimize the chrominance beat interference pattern that would be visible in areas of high color saturation in the transmitted picture. At certain times, the chrominance signal represents only the U signal, and 70 nanoseconds (NTSC) later, the chrominance signal represents only the V signal. (This is the nature of the quadrature amplitude modulation process that created the chrominance signal.) About 70 nanoseconds later still, -U, and another 70 nanoseconds, -V. So to extract U, a synchronous demodulator is utilized, which uses the subcarrier to briefly gate (sample) the chroma every 280 nanoseconds, so that the output is only a train of discrete pulses, each having an amplitude that is the same as the original U signal at the corresponding time. In effect, these pulses are discrete-time analog samples of the U signal. The pulses are then low-pass filtered so that the original analog continuous-time U signal is recovered. For V, a 90-degree shifted subcarrier briefly gates the chroma signal every 280 nanoseconds, and the rest of the process is identical to that used for the U signal. Gating at any other time than those times mentioned above will yield an additive mixture of any two of U, V, -U, or -V. One of these "off-axis" (that is, of the U and V axis) gating methods is called I/Q demodulation. Another much more popular "off-axis" scheme was the X/Z demodulation system. Further matrixing recovered the original U and V signals. This scheme was actually the most popular demodulator scheme throughout the 60s. The above process uses the subcarrier. But as previously mentioned, it was deleted before transmission, and only the chroma is transmitted. Therefore, the receiver must reconstitute the subcarrier. For this purpose, a short burst of the subcarrier, known as the color burst, is transmitted during the back porch (re-trace blanking period) of each scan line. A subcarrier oscillator in the receiver locks onto this signal (see phase-locked loop) to achieve a phase reference, resulting in the oscillator producing the reconstituted subcarrier. (A second use of the burst in more expensive or newer receiver models is a reference to an AGC system to compensate for chroma gain imperfections in reception.) NTSC uses this process unmodified. Unfortunately, this often results in poor color reproduction due to phase errors in the received signal, caused sometimes by multipath, but mostly by poor implementation at the studio end. With the advent of solid-state receivers, cable TV, and digital studio equipment for conversion to an over-the-air analog signal, these NTSC problems have been largely fixed, leaving operator error at the studio end as the sole color rendition weakness of the NTSC system. In any case, the PAL D (delay) system mostly corrects these kinds of errors by reversing the phase of the signal on each successive

represents only the U signal, and 70 nanoseconds (NTSC) later, the chrominance signal represents only the V signal. (This is the nature of the quadrature amplitude modulation process that created the chrominance signal.) About 70 nanoseconds later still, -U, and another 70 nanoseconds, -V. So to extract U, a synchronous demodulator is utilized, which uses the subcarrier to briefly gate (sample) the chroma every 280 nanoseconds, so that the output is only a train of discrete pulses, each having an amplitude that is the same as the original U signal at the corresponding time. In effect, these pulses are discrete-time analog samples of the U signal. The pulses are then low-pass filtered so that the original analog continuous-time U signal is recovered. For V, a 90-degree shifted subcarrier briefly gates the chroma signal every 280 nanoseconds, and the rest of the process is identical to that used for the U signal. Gating at any other time than those times mentioned above will yield an additive mixture of any two of U, V, -U, or -V. One of these "off-axis" (that is, of the U and V axis) gating methods is called I/Q demodulation. Another much more popular "off-axis" scheme was the X/Z demodulation system. Further matrixing recovered the original U and V signals. This scheme was actually the most popular demodulator scheme throughout the 60s. The above process uses the subcarrier. But as previously mentioned, it was deleted before transmission, and only the chroma is transmitted. Therefore, the receiver must reconstitute the subcarrier. For this purpose, a short burst of the subcarrier, known as the color burst, is transmitted during the back porch (re-trace blanking period) of each scan line. A subcarrier oscillator in the receiver locks onto this signal (see phase-locked loop) to achieve a phase reference, resulting in the oscillator producing the reconstituted subcarrier. (A second use of the burst in more expensive or newer receiver models is a reference to an AGC system to compensate for chroma gain imperfections in reception.) NTSC uses this process unmodified. Unfortunately, this often results in poor color reproduction due to phase errors in the received signal, caused sometimes by multipath, but mostly by poor implementation at the studio end. With the advent of solid-state receivers, cable TV, and digital studio equipment for conversion to an over-the-air analog signal, these NTSC problems have been largely fixed, leaving operator error at the studio end as the sole color rendition weakness of the NTSC system. In any case, the PAL D (delay) system mostly corrects these kinds of errors by reversing the phase of the signal on each successive line, and averaging the results over pairs of lines. This process is achieved by the use of a 1H (where H = horizontal scan frequency) duration delay line. (A typical circuit used with this device converts the low-frequency color signal to ultrasound and back again). Phase shift errors between successive lines are therefore canceled out and the wanted signal amplitude is increased when the two in-phase (coincident) signals are re-combined. NTSC is more spectrum efficient than PAL, giving more picture detail for a given bandwidth. This is because sophisticated comb filters in receivers are more effective with NTSC's 4 field color phase cadence compared to PAL's 8 field cadence. However, in the end, the larger channel width of most PAL systems in Europe still give their PAL systems the edge in transmitting more picture detail. In the SECAM television system, U and V are transmitted on alternate lines, using simple frequency modulation of two different color subcarriers. In some analog color CRT displays, starting in 1956, the brightness control signal (luminance) is fed to the cathode connections of the electron guns, and the color difference signals (chrominance signals) are fed to the control grids connections. This simple CRT matrix mixing technique was replaced in later solid state designs of signal processing with the original matrixing method used in the 1954 and 1955 color TV receivers. Synchronization Synchronizing pulses added to the video signal at the end of every scan line and video frame ensure that the sweep oscillators in the receiver remain locked in step with the transmitted signal so that the image can be reconstructed on the receiver screen. A sync separator circuit detects the sync voltage levels and sorts the pulses into horizontal and vertical sync. Horizontal synchronization The horizontal synchronization pulse (horizontal sync, or HSync), separates the scan lines. The horizontal sync signal is a single short pulse which indicates the start of every line. The rest of the scan line follows, with the signal ranging from 0.3 V (black) to 1 V (white), until the next horizontal or vertical synchronization pulse. The format of the horizontal sync pulse varies. In the 525-line NTSC system it is a 4.85 μs-long pulse at 0 V. In the 625-line PAL system the pulse is 4.7 μs synchronization pulse at 0 V . This is lower than the amplitude of any video signal (blacker than black) so it can be detected by the level-sensitive "sync stripper" circuit of the receiver. Vertical synchronization Vertical synchronization (also called vertical sync or VSync) separates the video fields. In PAL and NTSC, the vertical sync pulse occurs within the vertical blanking interval. The vertical sync pulses are made by prolonging the length of HSYNC pulses through almost the entire length of the scan line. The vertical sync signal is a series of much longer pulses, indicating the start of a new field. The sync pulses occupy the whole line interval of a number of lines at the beginning and end of a scan; no picture information is transmitted during vertical retrace. The pulse sequence is designed to allow horizontal sync to continue during vertical retrace; it also indicates whether each field represents even or odd lines in interlaced systems (depending on whether it begins at the start of a horizontal line, or midway through). The format of such a signal in 525-line NTSC is: pre-equalizing pulses (6 to start scanning odd lines, 5 to start scanning even lines) long-sync pulses (5 pulses) post-equalizing pulses (5 to start scanning odd lines, 4 to start scanning even lines) Each pre- or post- equalizing pulse consists in half a scan line of black signal: 2 μs at 0 V, followed by 30 μs at 0.3 V. Each long sync pulse consists of an equalizing pulse with timings inverted: 30 μs at 0 V, followed by 2 μs at 0.3 V. In video production and computer graphics, changes to the image are often kept in step with the vertical synchronization pulse to avoid visible discontinuity of the image. Since the frame buffer of a computer graphics display imitates the dynamics of a cathode-ray display, if it is updated with a new image while the image is being transmitted to the display, the display shows a mishmash of both frames, producing a page tearing artifact partway down the image. Vertical synchronization eliminates this by timing frame buffer fills to coincide with the vertical blanking interval, thus ensuring that only whole frames are seen on-screen. Software such as video games and computer-aided design (CAD) packages often allow vertical synchronization as an option, because it delays the image update until the vertical blanking interval. This produces a small penalty in latency because the program has to wait until the video controller has finished transmitting the image to the display before continuing. Triple buffering reduces this latency significantly. Two-timing intervals are defined – the front porch between the end of the displayed video and the start of the sync pulse, and the back porch after the sync pulse and before the displayed video. These and the sync pulse itself are called the horizontal blanking (or retrace) interval and represent the time that the electron beam in the CRT is returning to the start of the next display line. Horizontal and vertical hold Analog television receivers and composite monitors often provide manual controls to adjust horizontal and vertical timing. The sweep (or deflection) oscillators were designed to run without a signal from the television station (or VCR, computer, or other composite video source). This provides a blank canvas, similar to today's "CHECK SIGNAL CABLE" messages on monitors: it allows the television receiver to display a raster to confirm the basic operation of the set's most fundamental circuits, and to allow an image to be presented during antenna placement. With sufficient signal strength, the receiver's sync separator circuit would split timebase pulses from the incoming video and use them to reset the horizontal and vertical oscillators at the appropriate time to synchronize with the signal from the station. The free-running oscillation of the horizontal circuit is especially critical, as the horizontal deflection circuits typically power the flyback transformer (which provides acceleration potential for the CRT) as well as the filaments for the high voltage rectifier tube and sometimes the filament(s) of the CRT itself. Without the operation of the horizontal oscillator and output stages, for virtually every analog television receiver since the 1940s, there will be absolutely no illumination of the CRT's face. The lack of precision timing components in early television receivers meant that the timebase circuits occasionally needed manual adjustment. If their free-run frequencies were too far from the actual line and field rates, the circuits would not be able to follow the incoming sync signals. Loss of horizontal synchronization usually resulted in an unwatchable picture; loss of vertical synchronization would produce an image rolling up or down the screen. The adjustment took the form of horizontal hold and vertical hold controls, usually on the front panel along with other common controls. These adjusted the free-run frequencies of the corresponding timebase oscillators. Properly working, adjusting a horizontal or vertical hold should cause the picture to almost "snap" into place on the screen; this is called sync lock. A slowly rolling vertical picture demonstrates that the vertical oscillator is nearly synchronized with the television station but is not locking to it, often due to a weak signal or a failure in the sync separator stage not resetting the oscillator. Sometimes, the black interval bar will almost stop at the right place, again indicating a fault in sync separation is not properly resetting the vertical oscillator. Horizontal sync errors cause the image to be torn diagonally and repeated across the screen as if it were wrapped around a screw or a barber's pole; the greater the error, the more "copies" of the image will be seen at once wrapped around the barber pole. Given the importance of the horizontal sync circuit as a power supply to many subcircuits in the receiver, they may begin to malfunction as well; and horizontal output components that were designed to work together in a resonant circuit may become damaged. In the earliest electronic television receivers (1930s-1950s), the time base for the sweep oscillators was generally derived from RC circuits based on carbon resistors and paper capacitors. After turning on the receiver, the vacuum tubes in the set would warm up and the oscillators would begin to run, allowing a watchable picture. Resistors were generally simple pieces of carbon inside a Bakelite enclosure, and the capacitors were usually alternating layers of paper and aluminum foil inside cardboard tubes sealed with bee's wax. Moisture ingress (from ambient air humidity) as well as thermal instability of these components affected their electrical values. As the heat from the tubes and the electrical currents passing through the RC circuits warmed them up, the electrical properties of the RC timebase would shift, causing the oscillators to drift in frequency to a point that they could no longer be synchronized with the received pulses coming from the TV station via the sync separator circuit, causing tearing (horizontal) or rolling (vertical). Hermetically-sealed passive components and cooler-running semiconductors as active components gradually improved reliability to the point where the horizontal hold was moved to the rear of the set first, and the vertical hold control (due to the longer period in the RC constant) persisted as a front panel control well into the 1970s as the consistency of larger-value capacitors increased. By the early 1980s the efficacy of the synchronization circuits, plus the inherent stability of the sets' oscillators, had been improved to the point where these controls were no longer necessary. Integrated Circuits which eliminated the horizontal hold control were starting to appear as early as 1969. The final generations of analog television receivers (most TV sets with internal on-screen displays to adjust brightness, color, tint, contrast) used "TV-set-on-a-chip" designs where the receiver's timebases were divided down from crystal oscillators, usually based on the 3.58 MHz NTSC colorburst reference. PAL and SECAM receivers were similar though operating at different frequencies. With these sets, adjustment of the free-running frequency of either sweep oscillator was either physically impossible (being derived inside the integrated circuit) or possibly through a hidden service mode typically offering only NTSC/PAL frequency switching, accessible through the On-Screen Display's menu system. Horizontal and Vertical Hold controls were rarely used in CRT-based computer monitors, as the quality and consistency of components were quite high by the advent of the computer age, but might be found on some composite monitors used with the 1970s-1980s home or personal computers. There is no equivalent in modern television systems. Other technical information Components of a television system A typical analog monochrome television receiver is based around the block diagram shown below: The tuner is the object which "plucks" the television signals out of the air, with the aid of an antenna. There are two types of tuners in analog television, VHF and UHF tuners. The VHF tuner selects the VHF television frequency. This consists of a 4 MHz video bandwidth and a 2 MHz audio bandwidth. It then amplifies the signal and converts it to a 45.75 MHz Intermediate Frequency (IF) amplitude-modulated picture and a 41.25 MHz IF frequency-modulated audio carrier. The IF amplifiers are centered at 44 MHz for optimal frequency transference of the audio and frequency carriers. What centers this frequency is the IF transformer. They are designed for a certain amount of bandwidth to encompass the audio and video. It depends on the number of stages (the amplifier between the transformers). Most of the early television sets (1939–45) used 4 stages with specially designed video amplifier tubes (the type 1852/6AC7). In 1946 the RCA presented a new innovation in television; the RCA 630TS. Instead of using the 1852 octal tube, it uses the 6AG5 7-pin miniature tube. It still had 4 stages, but it was 1/2 the size. Soon all of the manufactures followed RCA and designed better IF stages. They developed higher amplification tubes, and lower stage counts with more amplification. When the tube era came to an end in the mid-70s, they had shrunk the IF stages down to 1-2 (depending on the set) and with the same amplification as the 4 stage, 1852 tube sets. Like radio, television has Automatic Gain Control (AGC). This controls the gain of the IF amplifier stages and the tuner. More of this will be discussed below. The video amp and output amplifier consist of a low linear pentode or a high powered transistor. The video amp and output stage separate the 45.75 MHz from the 41.25 MHz. It simply uses a diode to detect the video signal. But the frequency-modulated audio is still in the video. Since the diode only detects AM signals, the FM audio signal is still in the video in the form of a 4.5 MHz signal. There are two ways to attach this problem, and both of them work. We can detect the signal before it enters into the video amplifier, or do it after the audio amplifier. Many television sets (1946 to late 1960s) used the after video amplification method, but of course, there is the occasional exception. Many of the later set late (1960s-now) use the before-the-video amplifier way. In some of the early television sets (1939–45) used its own separate tuner, so there was no need for a detection stage next to the amplifier. After the video detector, the video is amplified and sent to the sync separator and then to the picture tube. At this point, we will now look at the audio section. The means of detection of the audio signal is by a 4.5 MHz traps coil/transformer. After that, it then goes to a 4.5 MHz amplifier. This amplifier prepares the signal for the 4.5Mhz detector. It then goes through a 4.5 MHz IF transformer to the detector. In television, there are 2 ways of detecting FM signals. One way is by the ratio detector. This is simple but very hard to align. The next is a relatively simple detector. This is the quadrature detector. It was invented in 1954. The first tube designed for this purpose was the 6BN6 type. It is easy to align and simple in circuitry. It was such a good design that it is still being used today in the Integrated circuit form. After the detector, it goes to the audio amplifier. The next part is the sync separator/clipper. This also does more than what is in its name. It also forms the AGC voltage, as previously stated. This sync separator turns the video into a signal that the horizontal and vertical oscillators can use to keep in sync with the video. The horizontal and vertical oscillators form the raster on the CRT. They are kept in sync by the sync separator. There are many ways to create these oscillators. The first one is the earliest of its kind is the thyratron oscillator. Although it is known to drift, it makes a perfect sawtooth wave. This sawtooth wave is so good that no linearity control is needed. This oscillator was for the electrostatic deflection CRTs. It found some purpose for the electromagnetically deflected CRTs. The next oscillator is the blocking oscillator. It uses a transformer to create a sawtooth wave. This was only used for a brief time period and never was very popular after the beginning. The next oscillator is the multivibrator. This oscillator was probably the most successful. It needed more adjustment than the other oscillators, but it is very simple and effective. This oscillator was so popular that it was used from the early 1950s until today. The oscillator amplifier is sorted into two categories. The vertical amplifier directly drives the yoke. There is not much to this. It is similar to an audio amplifier. The horizontal oscillator is a different situation. The oscillator must supply the high voltage and the yoke power. This requires a high power flyback transformer, and a high powered tube or transistor. This is a problematic section for CRT televisions because it has to handle high power. Sync separator Image synchronization is achieved by transmitting negative-going pulses; in a composite video signal of 1-volt amplitude, these are approximately 0.3 V below the "black level". The horizontal sync signal is a single short pulse which indicates the start of every line. Two-timing intervals are defined – the front porch between the end of the displayed video and the start of the sync pulse, and the back porch after the sync pulse and before the displayed video. These and the sync pulse itself are called the horizontal blanking (or retrace) interval and represent the time that the electron beam in the CRT is returning to the start of the next display line. The vertical sync signal is a series of much longer pulses, indicating the start of a new field. The sync pulses occupy the whole of line interval of a number of lines at the beginning and end of a scan; no picture information is transmitted during vertical retrace. The pulse sequence is designed to allow horizontal sync to continue during vertical retrace; it also indicates whether each field represents even or odd lines in interlaced systems (depending on whether it begins at the start of a horizontal line, or midway through). In the television receiver, a sync separator circuit detects the sync voltage levels and sorts the pulses into horizontal and vertical sync. Loss of horizontal synchronization usually resulted in an unwatchable picture; loss of vertical synchronization would produce an image rolling up or down the screen. Counting sync pulses, a video line selector picks a selected line from a TV signal, used for teletext, on-screen displays, station identification logos as well as in the industry when cameras were used as a sensor. Timebase circuits In an analog receiver with a CRT display sync pulses are fed to horizontal and vertical timebase circuits (commonly called "sweep circuits" in the United States), each consisting of an oscillator and an amplifier. These generate modified sawtooth and parabola current waveforms to scan the electron beam in a linear way. The waveform shapes are necessary to make up for the distance variations from the electron beam source and the screen surface. The oscillators are designed to free-run at frequencies very close to the field and line rates, but the sync pulses cause them to reset at the beginning of each scan line or field, resulting in the necessary synchronization of the beam sweep with the originating signal. The output waveforms from the timebase amplifiers are fed to the horizontal and vertical deflection coils wrapped around the CRT tube. These coils produce magnetic fields proportional to the changing current, and these deflect the electron beam across the screen. In the 1950s, the power for these circuits was derived directly from the mains supply. A simple circuit consisted of a series voltage dropper resistance and a rectifier valve (tube) or semiconductor diode. This avoided the cost of a large high voltage mains supply (50 or 60 Hz) transformer. This type of circuit was used for the thermionic valve (vacuum tube) technology. It was inefficient and produced a lot of heat which led to premature failures in the circuitry. Although failure was common, it was easily repairable. In the 1960s, semiconductor technology was introduced into timebase circuits. During the late 1960s in the UK, synchronous (with the scan line rate) power generation was introduced into solid state receiver designs. These had very complex circuits in which faults were difficult to trace, but had very efficient use of power. In the early 1970s AC mains (50 or 60 Hz), and line timebase (15,625 Hz), thyristor based switching circuits were introduced. In the UK use of the simple (50 Hz) types of power, circuits were discontinued. The reason for design changes arose from the electricity supply

John Montagu, 11th Earl of Sandwich, English businessman and politician 1943 – Harley Race, American wrestler and trainer (d. 2019) 1944 – Peter Barfuß, German footballer 1944 – John Milius, American director, producer, and screenwriter 1945 – John Krebs, Baron Krebs, English zoologist and academic 1946 – Chris Burden, American sculptor, illustrator, and academic (d. 2015) 1946 – Bob Harris, English journalist and radio host 1947 – Lev Bulat, Ukrainian-Russian physicist and academic (d. 2016) 1947 – Uli Edel, German director and screenwriter 1947 – Frank Mantooth, American pianist and composer (d. 2004) 1947 – Peter Riegert, American actor, screenwriter and film director 1947 – Michael T. Wright, English engineer and academic (d. 2015) 1949 – Bernd Eichinger, German director and producer (d. 2011) 1950 – Bill Irwin, American actor and clown 1951 – Paul Fox, English singer and guitarist (d. 2007) 1952 – Nancy Honeytree, American singer and guitarist 1952 – Indira Samarasekera, Sri Lankan engineer and academic 1952 – Peter Windsor, English-Australian journalist and sportscaster 1953 – Guy Verhofstadt, Belgian politician, 47th Prime Minister of Belgium 1953 – Andrew Wiles, English mathematician and academic 1954 – Abdullah Atalar, Turkish engineer and academic 1954 – Aleksandr Averin, Azerbaijani cyclist and coach 1954 – Francis Lickerish, English guitarist and composer 1954 – David Perrett, Scottish psychologist and academic 1954 – Ian Redmond, English biologist and conservationist 1954 – Willie Royster, American baseball player (d. 2015) 1955 – Kevin Brady, American lawyer and politician 1955 – Michael Callen, American singer-songwriter and AIDS activist (d. 1993) 1955 – Micheal Ray Richardson, American basketball player and coach 1958 – Stuart Adamson, Scottish singer-songwriter and guitarist (d. 2001) 1958 – Lyudmila Kondratyeva, Russian sprinter 1959 – Pierre Lacroix, Canadian ice hockey player 1959 – Ana María Polo, Cuban-American lawyer and judge 1959 – Zahid Maleque, Bangladeshi politician 1960 – Jeremy Clarkson, English journalist and television presenter 1961 – Vincent Gallo, American actor, director, producer, and musician 1961 – Doug Hopkins, American guitarist and songwriter (d. 1993) 1961 – Nobuaki Kakuda, Japanese martial artist 1962 – Franck Ducheix, French fencer 1962 – Mark Lawson, English journalist and author 1963 – Billy Bowden, New Zealand cricketer and umpire 1963 – Waldemar Fornalik, Polish footballer and manager 1963 – Elizabeth Smylie, Australian tennis player 1964 – Steve Azar, American singer-songwriter and guitarist 1964 – John Cryer, English journalist and politician 1964 – Johann Sebastian Paetsch, American cellist 1964 – Bret Saberhagen, American baseball player and coach 1964 – Patrick Sang, Kenyan runner 1966 – Steve Scarsone, American baseball player and manager 1966 – Shin Seung-hun, South Korean singer-songwriter 1966 – Lisa Stansfield, English singer-songwriter and actress 1968 – Sergei Lukyanenko, Kazakh-Russian journalist and author 1969 – Cerys Matthews, Welsh singer-songwriter 1969 – Michael von Grünigen, Swiss skier 1970 – Trevor Linden, Canadian ice hockey player and manager 1971 – Oliver Riedel, German bass player 1972 – Balls Mahoney, American wrestler (d. 2016) 1972 – Allan Théo, French singer 1972 – Jason Varitek, American baseball player and manager 1972 – Jennifer Esposito, American actress and writer 1973 – Olivier Magne, French rugby player 1974 – Àlex Corretja, Spanish tennis player and coach 1974 – Ashot Danielyan, Armenian weightlifter 1974 – David Jassy, Swedish singer-songwriter and producer 1974 – Tom Thacker, Canadian singer-songwriter, guitarist, and producer 1974 – Trot Nixon, American baseball player and sportscaster 1976 – Kelvim Escobar, Venezuelan baseball player 1976 – Kotomitsuki Keiji, Japanese sumo wrestler 1977 – Ivonne Teichmann, German runner 1978 – Josh Hancock, American baseball player (d. 2007) 1979 – Malcolm Christie, English footballer 1979 – Sebastien Grainger, Canadian singer-songwriter and guitarist 1979 – Michel Riesen, Swiss ice hockey player 1979 – Josh Server, American actor 1980 – Keiji Tamada, Japanese footballer 1980 – Mark Teixeira, American baseball player 1981 – Alessandra Ambrosio, Brazilian model 1981 – Alexandre Burrows, Canadian ice hockey player 1981 – Luis Flores, Dominican basketball player 1981 – Veronica Pyke, Australian cricketer 1982 – Ian Bell, English cricketer 1982 – Peeter Kümmel, Estonian skier 1983 – Jennifer Heil, Canadian skier 1983 – Rubén Palazuelos, Spanish footballer 1983 – Nicky Pastorelli, Dutch race car driver 1984 – Kelli Garner, American actress 1984 – Nikola Karabatić, French handball player 1985 – Pablo Hernández Domínguez, Spanish footballer 1985 – Will Minson, Australian footballer 1986 – Sarodj Bertin, Haitian model and human rights lawyer 1986 – Lena Schöneborn, German pentathlete 1987 – Joss Stone, English singer-songwriter and actress 1987 – Lights, Canadian singer-songwriter 1988 – Leland Irving, Canadian ice hockey player 1989 – Torrin Lawrence, American sprinter (d. 2014) 1990 – Dimitrios Anastasopoulos, Greek footballer 1990 – Thulani Serero, South African footballer 1991 – Thiago Alcântara, Spanish footballer 1991 – Brennan Poole, American racing driver 1996 – Dele Alli, English international footballer Deaths Pre-1600 618 – Yang Guang, Chinese emperor of the Sui Dynasty (b. 569) 678 – Donus, pope of the Catholic Church (b. 610) 924 – Herman I, chancellor and archbishop of Cologne 1034 – Romanos III Argyros, Byzantine emperor (b. 968) 1077 – Anawrahta, king of Burma and founder of the Pagan Empire (b. 1014) 1079 – Stanislaus of Szczepanów, bishop of Kraków (b. 1030) 1165 – Stephen IV, king of Hungary and Croatia 1240 – Llywelyn the Great, Welsh prince (b. 1172) 1349 – Ramadan ibn Alauddin, first known Muslim from Korea 1447 – Henry Beaufort, Cardinal, Lord Chancellor of England (b. 1377) 1512 – Gaston de Foix, French military commander (b. 1489) 1554 – Thomas Wyatt the Younger, English rebel leader (b. 1521) 1587 – Thomas Bromley, English lord chancellor (b. 1530) 1601–1900 1609 – John Lumley, 1st Baron Lumley, English noble (b. 1533) 1612 – Emanuel van Meteren, Flemish historian and author (b. 1535) 1612 – Edward Wightman, English minister and martyr (b. 1566) 1626 – Marino Ghetaldi, Ragusan mathematician and physicist (b. 1568) 1712 – Richard Simon, French priest and critic (b. 1638) 1723 – John Robinson, English bishop and diplomat (b. 1650) 1783 – Nikita Ivanovich Panin, Polish-Russian politician, Russian Minister of Foreign Affairs (b. 1718) 1798 – Karl Wilhelm Ramler, German poet and academic (b. 1725) 1856 – Juan Santamaría, Costa Rican soldier (b. 1831) 1861 – Francisco González Bocanegra, Mexican poet and composer (b. 1824) 1873 – Edward Canby, American general (b. 1817) 1890 – David de Jahacob Lopez Cardozo, Dutch Talmudist (b. 1808) 1890 – Joseph Merrick, English man with severe deformities (b. 1862) 1894 – Constantin Lipsius, German architect and theorist (b. 1832) 1895 – Julius Lothar Meyer, German chemist (b. 1830) 1901–present 1902 – Wade Hampton III, American general and politician, 77th Governor of South Carolina (b. 1818) 1903 – Gemma Galgani, Italian mystic and saint (b. 1878) 1906 – James Anthony Bailey, American businessman, co-founded Ringling Bros. and Barnum & Bailey Circus (b. 1847) 1906 – Francis Pharcellus Church, American journalist and publisher, co-founded Armed Forces Journal and The Galaxy Magazine (b. 1839) 1908 – Henry Bird, English chess player and author (b. 1829) 1916 – Richard Harding Davis, American journalist and author (b. 1864) 1918 – Otto Wagner, Austrian architect and urban planner (b. 1841) 1926 – Luther Burbank, American botanist and academic (b. 1849) 1939 – Kurtdereli Mehmet, Turkish wrestler (b. 1864) 1953 – Kid Nichols, American baseball player and manager (b. 1869) 1954 – Paul Specht, American violinist and bandleader (b. 1895) 1958 – Konstantin Yuon, Russian painter and educator (b. 1875) 1960 – Rosa Grünberg, Swedish actress (b. 1878) 1962 – Ukichiro Nakaya, Japanese physicist and academic (b. 1900) 1962 – George Poage, American hurdler and educator (b. 1880) 1967 – Thomas Farrell, American general (b. 1891) 1967 – Donald Sangster, Jamaican lawyer and politician, 2nd Prime Minister of Jamaica (b. 1911) 1970 – Cathy O'Donnell, American actress (b. 1923) 1970 – John O'Hara, American novelist and short story writer (b. 1905) 1974 – Ernst Ziegler, German actor (b. 1894) 1977 – Jacques Prévert, French poet and screenwriter (b. 1900) 1977 – Phanishwar Nath 'Renu', Indian author and activist (b. 1921) 1980 – Ümit Kaftancıoğlu, Turkish journalist and producer (b. 1935) 1981 – Caroline Gordon, American author and critic (b. 1895) 1983 – Dolores del Río, Mexican actress (b. 1904) 1984 – Edgar V. Saks, Estonian historian and politician, Estonian Minister of Education (b. 1910) 1985 – Bunny Ahearne, Irish-born English businessman (b. 1900) 1985 – John Gilroy, English artist and illustrator (b. 1898) 1985 – Enver Hoxha, Albanian educator and politician, 21st Prime Minister of Albania (b. 1908) 1987 – Erskine Caldwell, American novelist and short story writer (b. 1903) 1987 – Primo Levi, Italian chemist and author (b. 1919) 1990 – Harold Ballard, Canadian businessman (b. 1903) 1991 – Walker Cooper, American baseball player and manager (b. 1915) 1991 – Bruno Hoffmann. German glass harp player (b. 1913) 1992 – James Brown, American actor and singer (b. 1920) 1992 – Eve Merriam, American author and poet (b. 1916) 1992 – Alejandro Obregón, Colombian painter, sculptor, and engraver (b. 1920) 1996 – Jessica Dubroff, American pilot (b. 1988) 1997 – Muriel McQueen Fergusson, Canadian lawyer and politician, Canadian Speaker of the Senate (b. 1899) 1997 – Wang Xiaobo, contemporary Chinese novelist and essayist (b. 1952) 1999 – William H. Armstrong, American author and educator (b. 1911) 2000 – Diana Darvey, English actress, singer and dancer (b. 1945) 2001 – Harry Secombe, Welsh-English actor (b. 1921) 2003 – Cecil Howard Green, English-American geophysicist and businessman, founded Texas Instruments (b. 1900) 2005 – André François, Romanian-French cartoonist, painter, and sculptor (b. 1915) 2005 – Lucien Laurent, French footballer and coach (b. 1907) 2006 – June Pointer, American singer (b. 1953) 2006 – DeShaun Holton, American rapper and actor (b. 1973) 2007 – Roscoe Lee Browne, American actor and director (b. 1922) 2007 – Loïc Leferme, French diver (b. 1970) 2007 – Janet McDonald, American lawyer and author (b. 1954) 2007 – Ronald Speirs, Scottish-American colonel (b. 1920) 2007 – Kurt Vonnegut, American novelist, short story writer, and playwright (b. 1922) 2008 – Merlin German, American sergeant (b. 1985) 2009 – Gerda Gilboe, Danish actress and singer (b. 1914) 2009 – Vishnu Prabhakar, Indian author and playwright (b. 1912) 2009 – Corín Tellado, Spanish author (b. 1927) 2010 – Julia Tsenova, Bulgarian pianist and composer (b. 1948) 2011 – Larry Sweeney, American wrestler and manager (b. 1981) 2012 – Ahmed Ben Bella, Algerian soldier and politician, 1st President of Algeria (b. 1916) 2012 – Roger Caron, Canadian criminal and author (b. 1938) 2012 – Tippy Dye, American basketball player and coach (b. 1915) 2012 – Hal McKusick, American saxophonist, clarinet player, and flute player (b. 1924) 2012 – Agustin Roman, American bishop (b. 1928) 2013 – Don Blackman, American singer-songwriter, pianist, and producer (b. 1953) 2013 – Sue Draheim, American fiddler (b.1949) 2013 – Grady Hatton, American baseball player, coach, and manager (b. 1922) 2013 – Thomas Hemsley, English actor and singer (b. 1927) 2013 – Hilary Koprowski, Polish-American virologist and immunologist (b. 1916) 2013 – Gilles Marchal, French singer-songwriter (b. 1944) 2013 – Maria Tallchief, American ballerina (b. 1925) 2013 – Clorindo Testa, Italian-Argentinian architect (b. 1923) 2013 – Jonathan Winters, American comedian, actor and screenwriter (b. 1925) 2014 – Rolf Brem, Swiss sculptor and illustrator (b. 1926) 2014 – Edna Doré, English actress (b. 1921) 2014 – Bill Henry, American baseball player (b. 1927) 2014 – Lou Hudson, American basketball player and sportscaster (b. 1944) 2014 – Myer S. Kripke, American

Representative to NATO (d. 2014) 1926 – Victor Bouchard, Canadian pianist and composer (d. 2011) 1926 – Karl Rebane, Estonian physicist and academic (d. 2007) 1927 – Lokesh Chandra, Indian historian 1928 – Ethel Kennedy, American philanthropist 1928 – Edwin Pope, American journalist and author (d. 2017) 1928 – Tommy Tycho, Hungarian-Australian pianist, composer, and conductor (d. 2013) 1930 – Nicholas F. Brady, American businessman and politician, 68th United States Secretary of the Treasury 1930 – Walter Krüger, German javelin thrower (d. 2018) 1930 – Anton LaVey, American occultist, founded the Church of Satan (d. 1997) 1931 – Lewis Jones, Welsh rugby player and coach 1932 – Joel Grey, American actor, singer, and dancer 1933 – Tony Brown, American journalist and academic 1934 – Mark Strand, Canadian-born American poet, essayist, and translator (d. 2014) 1934 – Ron Pember, English actor, director and playwright 1935 – Richard Berry, American singer-songwriter (d. 1997) 1936 – Brian Noble, English bishop (d. 2019) 1937 – Jill Gascoine, English actress and author (d. 2020) 1938 – Gerry Baker, American soccer player and manager (d. 2013) 1938 – Michael Deaver, American politician, Deputy White House Chief of Staff (d. 2007) 1938 – Reatha King, American chemist and businesswoman 1939 – Luther Johnson, American singer and guitarist 1939 – Louise Lasser, American actress 1940 – Col Firmin, Australian politician (d. 2013) 1940 – Thomas Harris, American author and screenwriter 1940 – Władysław Komar, Polish shot putter and actor (d. 1998) 1941 – Ellen Goodman, American journalist and author 1941 – Shirley Stelfox, English actress (d. 2015) 1942 – Anatoly Berezovoy, Russian colonel, pilot, and astronaut (d. 2014) 1942 – Hattie Gossett, American writer 1942 – James Underwood, English pathologist and academic 1943 – John Montagu, 11th Earl of Sandwich, English businessman and politician 1943 – Harley Race, American wrestler and trainer (d. 2019) 1944 – Peter Barfuß, German footballer 1944 – John Milius, American director, producer, and screenwriter 1945 – John Krebs, Baron Krebs, English zoologist and academic 1946 – Chris Burden, American sculptor, illustrator, and academic (d. 2015) 1946 – Bob Harris, English journalist and radio host 1947 – Lev Bulat, Ukrainian-Russian physicist and academic (d. 2016) 1947 – Uli Edel, German director and screenwriter 1947 – Frank Mantooth, American pianist and composer (d. 2004) 1947 – Peter Riegert, American actor, screenwriter and film director 1947 – Michael T. Wright, English engineer and academic (d. 2015) 1949 – Bernd Eichinger, German director and producer (d. 2011) 1950 – Bill Irwin, American actor and clown 1951 – Paul Fox, English singer and guitarist (d. 2007) 1952 – Nancy Honeytree, American singer and guitarist 1952 – Indira Samarasekera, Sri Lankan engineer and academic 1952 – Peter Windsor, English-Australian journalist and sportscaster 1953 – Guy Verhofstadt, Belgian politician, 47th Prime Minister of Belgium 1953 – Andrew Wiles, English mathematician and academic 1954 – Abdullah Atalar, Turkish engineer and academic 1954 – Aleksandr Averin, Azerbaijani cyclist and coach 1954 – Francis Lickerish, English guitarist and composer 1954 – David Perrett, Scottish psychologist and academic 1954 – Ian Redmond, English biologist and conservationist 1954 – Willie Royster, American baseball player (d. 2015) 1955 – Kevin Brady, American lawyer and politician 1955 – Michael Callen, American singer-songwriter and AIDS activist (d. 1993) 1955 – Micheal Ray Richardson, American basketball player and coach 1958 – Stuart Adamson, Scottish singer-songwriter and guitarist (d. 2001) 1958 – Lyudmila Kondratyeva, Russian sprinter 1959 – Pierre Lacroix, Canadian ice hockey player 1959 – Ana María Polo, Cuban-American lawyer and judge 1959 – Zahid Maleque, Bangladeshi politician 1960 – Jeremy Clarkson, English journalist and television presenter 1961 – Vincent Gallo, American actor, director, producer, and musician 1961 – Doug Hopkins, American guitarist and songwriter (d. 1993) 1961 – Nobuaki Kakuda, Japanese martial artist 1962 – Franck Ducheix, French fencer 1962 – Mark Lawson, English journalist and author 1963 – Billy Bowden, New Zealand cricketer and umpire 1963 – Waldemar Fornalik, Polish footballer and manager 1963 – Elizabeth Smylie, Australian tennis player 1964 – Steve Azar, American singer-songwriter and guitarist 1964 – John Cryer, English journalist and politician 1964 – Johann Sebastian Paetsch, American cellist 1964 – Bret Saberhagen, American baseball player and coach 1964 – Patrick Sang, Kenyan runner 1966 – Steve Scarsone, American baseball player and manager 1966 – Shin Seung-hun, South Korean singer-songwriter 1966 – Lisa Stansfield, English singer-songwriter and actress 1968 – Sergei Lukyanenko, Kazakh-Russian journalist and author 1969 – Cerys Matthews, Welsh singer-songwriter 1969 – Michael von Grünigen, Swiss skier 1970 – Trevor Linden, Canadian ice hockey player and manager 1971 – Oliver Riedel, German bass player 1972 – Balls Mahoney, American wrestler (d. 2016) 1972 – Allan Théo, French singer 1972 – Jason Varitek, American baseball player and manager 1972 – Jennifer Esposito, American actress and writer 1973 – Olivier Magne, French rugby player 1974 – Àlex Corretja, Spanish tennis player and coach 1974 – Ashot Danielyan, Armenian weightlifter 1974 – David Jassy, Swedish singer-songwriter and producer 1974 – Tom Thacker, Canadian singer-songwriter, guitarist, and producer 1974 – Trot Nixon, American baseball player and sportscaster 1976 – Kelvim Escobar, Venezuelan baseball player 1976 – Kotomitsuki Keiji, Japanese sumo wrestler 1977 – Ivonne Teichmann, German runner 1978 – Josh Hancock, American baseball player (d. 2007) 1979 – Malcolm Christie, English footballer 1979 – Sebastien Grainger, Canadian singer-songwriter and guitarist 1979 – Michel Riesen, Swiss ice hockey player 1979 – Josh Server, American actor 1980 – Keiji Tamada, Japanese footballer 1980 – Mark Teixeira, American baseball player 1981 – Alessandra Ambrosio, Brazilian model 1981 – Alexandre Burrows, Canadian ice hockey player 1981 – Luis Flores, Dominican basketball player 1981 – Veronica Pyke, Australian cricketer 1982 – Ian Bell, English cricketer 1982 – Peeter Kümmel, Estonian skier 1983 – Jennifer Heil, Canadian skier 1983 – Rubén Palazuelos, Spanish footballer 1983 – Nicky Pastorelli, Dutch race car driver 1984 – Kelli Garner, American actress 1984 – Nikola Karabatić, French handball player 1985 – Pablo Hernández Domínguez, Spanish footballer 1985 – Will Minson, Australian footballer 1986 – Sarodj Bertin, Haitian model and human rights lawyer 1986 – Lena Schöneborn, German pentathlete 1987 – Joss Stone, English singer-songwriter and actress 1987 – Lights, Canadian singer-songwriter 1988 – Leland Irving, Canadian ice hockey player 1989 – Torrin Lawrence, American sprinter (d. 2014) 1990 – Dimitrios Anastasopoulos, Greek footballer 1990 – Thulani Serero, South African footballer 1991 – Thiago Alcântara, Spanish footballer 1991 – Brennan Poole, American racing driver 1996 – Dele Alli, English international footballer Deaths Pre-1600 618 – Yang Guang, Chinese emperor of the Sui Dynasty (b. 569) 678 – Donus, pope of the Catholic Church (b. 610) 924 – Herman I, chancellor and archbishop of Cologne 1034 – Romanos III Argyros, Byzantine emperor (b. 968) 1077 – Anawrahta, king of Burma and founder of the Pagan Empire (b. 1014) 1079 – Stanislaus of Szczepanów, bishop of Kraków (b. 1030) 1165 – Stephen IV, king of Hungary and Croatia 1240 – Llywelyn the Great, Welsh prince (b. 1172) 1349 – Ramadan ibn Alauddin, first known Muslim from Korea 1447 – Henry Beaufort, Cardinal, Lord Chancellor of England (b. 1377) 1512 – Gaston de Foix, French military commander (b. 1489) 1554 – Thomas Wyatt the Younger, English rebel leader (b. 1521) 1587 – Thomas Bromley, English lord chancellor (b. 1530) 1601–1900 1609 – John Lumley, 1st Baron Lumley, English noble (b. 1533) 1612 – Emanuel van Meteren, Flemish historian and author (b. 1535) 1612 – Edward Wightman, English minister and martyr (b. 1566) 1626 – Marino Ghetaldi, Ragusan mathematician and physicist (b. 1568) 1712 – Richard Simon, French priest and critic (b. 1638) 1723 – John Robinson, English bishop and diplomat (b. 1650) 1783 – Nikita Ivanovich Panin, Polish-Russian politician, Russian Minister of Foreign Affairs (b. 1718) 1798 – Karl Wilhelm Ramler, German poet and academic (b. 1725) 1856 – Juan Santamaría, Costa Rican soldier (b. 1831) 1861 – Francisco González Bocanegra, Mexican poet and composer (b. 1824) 1873 – Edward Canby, American general (b. 1817) 1890 – David de Jahacob Lopez Cardozo, Dutch Talmudist (b. 1808) 1890 – Joseph Merrick, English man with severe deformities (b. 1862) 1894 – Constantin Lipsius, German architect and theorist (b. 1832) 1895 – Julius Lothar Meyer, German chemist (b. 1830) 1901–present 1902 – Wade Hampton III, American general and politician, 77th Governor of South Carolina (b. 1818) 1903 – Gemma Galgani, Italian mystic and saint (b. 1878) 1906 – James Anthony Bailey, American businessman, co-founded Ringling Bros. and Barnum & Bailey Circus (b. 1847) 1906 – Francis Pharcellus Church, American journalist and publisher, co-founded Armed Forces Journal and The Galaxy Magazine (b. 1839) 1908 – Henry Bird, English chess player and author (b. 1829) 1916 – Richard Harding Davis, American journalist and author (b. 1864) 1918 – Otto Wagner, Austrian architect and urban planner (b. 1841) 1926 – Luther Burbank, American botanist and academic (b. 1849) 1939 – Kurtdereli Mehmet, Turkish wrestler (b. 1864) 1953 – Kid Nichols, American baseball player and manager (b. 1869) 1954 – Paul Specht, American violinist and bandleader (b. 1895) 1958 – Konstantin Yuon, Russian painter and educator (b. 1875) 1960 – Rosa Grünberg, Swedish actress (b. 1878) 1962 – Ukichiro Nakaya, Japanese physicist and academic (b. 1900) 1962 – George Poage, American hurdler and educator (b. 1880) 1967 – Thomas Farrell, American general (b. 1891) 1967 – Donald Sangster, Jamaican lawyer and politician, 2nd Prime Minister of Jamaica (b. 1911) 1970 – Cathy O'Donnell, American actress (b. 1923) 1970 – John O'Hara, American novelist and short story writer (b. 1905) 1974 – Ernst Ziegler, German actor (b. 1894) 1977 – Jacques Prévert, French poet and screenwriter (b. 1900) 1977 – Phanishwar Nath 'Renu', Indian author and activist (b. 1921) 1980 – Ümit Kaftancıoğlu, Turkish journalist and producer (b. 1935) 1981 – Caroline Gordon, American author and critic (b. 1895) 1983 – Dolores del Río, Mexican actress (b. 1904) 1984 – Edgar V. Saks, Estonian historian and politician, Estonian Minister of Education (b. 1910) 1985 – Bunny Ahearne, Irish-born English businessman (b. 1900) 1985 – John Gilroy, English artist and illustrator (b. 1898) 1985 – Enver Hoxha, Albanian educator and politician, 21st Prime Minister of Albania (b. 1908) 1987 – Erskine Caldwell, American novelist and short story writer (b. 1903) 1987 – Primo Levi, Italian chemist and author (b. 1919) 1990 – Harold Ballard, Canadian businessman (b. 1903) 1991 – Walker Cooper, American baseball player and manager (b. 1915) 1991 – Bruno Hoffmann. German glass harp player (b. 1913) 1992 – James Brown, American actor and singer (b. 1920) 1992 – Eve Merriam, American author and poet (b. 1916) 1992 – Alejandro Obregón, Colombian painter, sculptor, and engraver (b. 1920)

at high temperatures, relative weakness in bonding large objects with a small bonding surface area, and greater difficulty in separating objects during testing. Adhesives are typically organized by the method of adhesion followed by reactive or non-reactive, a term which refers to whether the adhesive chemically reacts in order to harden. Alternatively, they can be organized either by their starting physical phase or whether their raw stock is of natural or synthetic origin. Adhesives may be found naturally or produced synthetically. The earliest human use of adhesive-like substances was approximately 200,000 years ago, when Neanderthals produced tar from the dry distillation of birch bark for use in binding stone tools to wooden handles. The first references to adhesives in literature appeared in approximately 2000 BC. The Greeks and Romans made great contributions to the development of adhesives. In Europe, glue was not widely used until the period AD 1500–1700. From then until the 1900s increases in adhesive use and discovery were relatively gradual. Only since the last century has the development of synthetic adhesives accelerated rapidly, and innovation in the field continues to the present. History Evidence of the earliest known use of adhesives was discovered in central Italy when two stone flakes partially covered with birch-bark tar and a third uncovered stone from the Middle Pleistocene era (circa 200,000 years ago) were found. This is thought to be the oldest discovered human use of tar-hafted stones. The birch-bark-tar adhesive is a simple, one-component adhesive. A study from 2019 showed that birch tar production can be a very simple process—merely involving the burning of birch bark near smooth vertical surfaces in open air conditions. Although sticky enough, plant-based adhesives are brittle and vulnerable to environmental conditions. The first use of compound adhesives was discovered in Sibudu, South Africa. Here, 70,000-year-old stone segments that were once inserted in axe hafts were discovered covered with an adhesive composed of plant gum and red ochre (natural iron oxide) as adding ochre to plant gum produces a stronger product and protects the gum from disintegrating under wet conditions. The ability to produce stronger adhesives allowed middle Stone Age humans to attach stone segments to sticks in greater variations, which led to the development of new tools. More recent examples of adhesive use by prehistoric humans have been found at the burial sites of ancient tribes. Archaeologists studying the sites found that approximately 6,000 years ago the tribesmen had buried their dead together with food found in broken clay pots repaired with tree resins. Another investigation by archaeologists uncovered the use of bituminous cements to fasten ivory eyeballs to statues in Babylonian temples dating to approximately 4000 BC. In 2000, a paper revealed the discovery of a 5,200-year-old man nicknamed the "Tyrolean Iceman" or "Ötzi", who was preserved in a glacier near the Austria-Italy border. Several of his belongings were found with him including two arrows with flint arrowheads and a copper hatchet, each with evidence of organic glue used to connect the stone or metal parts to the wooden shafts. The glue was analyzed as pitch, which requires the heating of tar during its production. The retrieval of this tar requires a transformation of birch bark by means of heat, in a process known as pyrolysis. The first references to adhesives in literature appeared in approximately 2000 BC. Further historical records of adhesive use are found from the period spanning 1500–1000 BC. Artifacts from this period include paintings depicting wood gluing operations and a casket made of wood and glue in King Tutankhamun's tomb. Other ancient Egyptian artifacts employ animal glue for bonding or lamination. Such lamination of wood for bows and furniture is thought to have extended their life and was accomplished using casein (milk protein)-based glues. The ancient Egyptians also developed starch-based pastes for the bonding of papyrus to clothing and a plaster of Paris-like material made of calcined gypsum. From AD 1 to 500 the Greeks and Romans made great contributions to the development of adhesives. Wood veneering and marquetry were developed, the production of animal and fish glues refined, and other materials utilized. Egg-based pastes were used to bond gold leaves incorporated various natural ingredients such as blood, bone, hide, milk, cheese, vegetables, and grains. The Greeks began the use of slaked lime as mortar while the Romans furthered mortar development by mixing lime with volcanic ash and sand. This material, known as pozzolanic cement, was used in the construction of the Roman Colosseum and Pantheon. The Romans were also the first people known to have used tar and beeswax as caulk and sealant between the wooden planks of their boats and ships. In Central Asia, the rise of the Mongols in approximately AD 1000 can be partially attributed to the good range and power of the bows of Genghis Khan's hordes. These bows were made of a bamboo core, with horn on the belly (facing towards the archer) and sinew on the back, bound together with animal glue. In Europe, glue fell into disuse until the period AD 1500–1700. At this time, world-renowned cabinet and furniture makers such as Thomas Chippendale and Duncan Phyfe began to use adhesives to hold their products together. In 1690, the first commercial glue plant was established in The Netherlands. This plant produced glues from animal hides. In 1750, the first British glue patent was issued for fish glue. The following decades of the next century witnessed the manufacture of casein glues in German and Swiss factories. In 1876, the first U.S. patent (number 183,024) was issued to the Ross brothers for the production of casein glue. The first U.S. postage stamps used starch-based adhesives when issued in 1847. The first US patent (number 61,991) on dextrin (a starch derivative) adhesive was issued in 1867. Natural rubber was first used as material for adhesives starting in 1830, which marked the starting point of the modern adhesive. In 1862, a British patent (number 3288) was issued for the plating of metal with brass by electrodeposition to obtain a stronger bond to rubber. The development of the automobile and the need for rubber shock mounts required stronger and more durable bonds of rubber and metal. This spurred the development of cyclized rubber treated in strong acids. By 1927, this process was used to produce solvent-based thermoplastic rubber cements for metal to rubber bonding. Natural rubber-based sticky adhesives were first used on a backing by Henry Day (US Patent 3,965) in 1845. Later these kinds of adhesives were used in cloth backed surgical and electric tapes. By 1925, the pressure-sensitive tape industry was born. Today, sticky notes, Scotch Tape, and other tapes are examples of pressure-sensitive adhesives (PSA). A key step in the development of synthetic plastics was the introduction of a thermoset plastic known as Bakelite phenolic in 1910. Within two years, phenolic resin was applied to plywood as a coating varnish. In the early 1930s, phenolics gained importance as adhesive resins. The 1920s, 1930s, and 1940s witnessed great advances in the development and production of new plastics and resins due to the First and Second World Wars. These advances greatly improved the development of adhesives by allowing the use of newly developed materials that exhibited a variety of properties. With changing needs and ever evolving technology, the development of new synthetic adhesives continues to the present. However, due to their low cost, natural adhesives are still more commonly used. Economic importance In the course of time and during their development, adhesives have gained a stable position in an increasing number of production processes. Many vital products involve some sort of adhesive in the production process. Market researchers forecasted a turnover of almost US$50 billion for the global adhesives market in 2019. In particular, the economic development of emerging countries such as China, India, Russia, and Brazil will cause a rising demand for adhesives in the future. Types Adhesives are typically organized by the method of adhesion. These are then organized into reactive and non-reactive adhesives, which refers to whether the adhesive chemically reacts in order to harden. Alternatively they can be organized by whether the raw stock is of natural, or synthetic origin, or by their starting physical phase. By reactiveness Non-reactive Drying There are two types of adhesives that harden by drying: solvent-based adhesives and polymer dispersion adhesives, also known as emulsion adhesives. Solvent-based adhesives are a mixture of ingredients (typically polymers) dissolved in a solvent. White glue, contact adhesives and rubber cements are members of the drying adhesive family. As the solvent evaporates, the adhesive hardens. Depending on the chemical composition of the adhesive, they will adhere to different materials to greater or lesser degrees. Polymer dispersion adhesives are milky-white dispersions often based on polyvinyl acetate (PVAc). They are used extensively in the woodworking and packaging industries. They are also used with fabrics and fabric-based components, and in engineered products such as loudspeaker cones. Pressure-sensitive Pressure-sensitive adhesives (PSA) form a bond by the application of light pressure to marry the adhesive with the adherend. They are designed to have a balance between flow and resistance to flow. The bond forms because the adhesive is soft enough to flow (i.e., "wet") to the adherend. The bond has strength because the adhesive is hard enough to resist flow when stress is applied to the bond. Once the adhesive and the adherend are in close proximity, molecular interactions, such as van der Waals forces, become involved in the bond, contributing significantly to its ultimate strength. PSAs are designed for either permanent or removable applications. Examples of permanent applications include safety labels for power equipment, foil tape for HVAC duct work, automotive interior trim assembly, and sound/vibration damping films. Some high performance permanent PSAs exhibit high adhesion values and can support kilograms of weight per square centimeter of contact area, even at elevated temperatures. Permanent PSAs may initially be removable (for example to recover mislabeled goods) and build adhesion to a permanent bond after several hours or days. Removable adhesives are designed to form a temporary bond, and ideally can be removed after months or years without leaving residue on the adherend. Removable adhesives are used in applications such as surface protection films, masking tapes, bookmark and note papers, barcode labels, price marking labels, promotional graphics materials, and for skin contact (wound care dressings, EKG electrodes, athletic tape, analgesic and transdermal drug patches, etc.). Some removable adhesives are designed to repeatedly stick and unstick. They have low adhesion, and generally cannot support much weight. Pressure-sensitive adhesive is used in Post-it notes. Pressure-sensitive adhesives are manufactured with either a liquid carrier or in 100% solid form. Articles are made from liquid PSAs by coating the adhesive

dispersion adhesives, also known as emulsion adhesives. Solvent-based adhesives are a mixture of ingredients (typically polymers) dissolved in a solvent. White glue, contact adhesives and rubber cements are members of the drying adhesive family. As the solvent evaporates, the adhesive hardens. Depending on the chemical composition of the adhesive, they will adhere to different materials to greater or lesser degrees. Polymer dispersion adhesives are milky-white dispersions often based on polyvinyl acetate (PVAc). They are used extensively in the woodworking and packaging industries. They are also used with fabrics and fabric-based components, and in engineered products such as loudspeaker cones. Pressure-sensitive Pressure-sensitive adhesives (PSA) form a bond by the application of light pressure to marry the adhesive with the adherend. They are designed to have a balance between flow and resistance to flow. The bond forms because the adhesive is soft enough to flow (i.e., "wet") to the adherend. The bond has strength because the adhesive is hard enough to resist flow when stress is applied to the bond. Once the adhesive and the adherend are in close proximity, molecular interactions, such as van der Waals forces, become involved in the bond, contributing significantly to its ultimate strength. PSAs are designed for either permanent or removable applications. Examples of permanent applications include safety labels for power equipment, foil tape for HVAC duct work, automotive interior trim assembly, and sound/vibration damping films. Some high performance permanent PSAs exhibit high adhesion values and can support kilograms of weight per square centimeter of contact area, even at elevated temperatures. Permanent PSAs may initially be removable (for example to recover mislabeled goods) and build adhesion to a permanent bond after several hours or days. Removable adhesives are designed to form a temporary bond, and ideally can be removed after months or years without leaving residue on the adherend. Removable adhesives are used in applications such as surface protection films, masking tapes, bookmark and note papers, barcode labels, price marking labels, promotional graphics materials, and for skin contact (wound care dressings, EKG electrodes, athletic tape, analgesic and transdermal drug patches, etc.). Some removable adhesives are designed to repeatedly stick and unstick. They have low adhesion, and generally cannot support much weight. Pressure-sensitive adhesive is used in Post-it notes. Pressure-sensitive adhesives are manufactured with either a liquid carrier or in 100% solid form. Articles are made from liquid PSAs by coating the adhesive and drying off the solvent or water carrier. They may be further heated to initiate a cross-linking reaction and increase molecular weight. 100% solid PSAs may be low viscosity polymers that are coated and then reacted with radiation to increase molecular weight and form the adhesive, or they may be high viscosity materials that are heated to reduce viscosity enough to allow coating, and then cooled to their final form. Major raw material for PSA's are acrylate-based polymers. Contact Contact adhesives are used in strong bonds with high shear-resistance like laminates, such as bonding Formica to a wooden counter, and in footwear, as in attaching outsoles to uppers. Natural rubber and polychloroprene (Neoprene) are commonly used contact adhesives. Both of these elastomers undergo strain crystallization. Contact adhesives must be applied to both surfaces and allowed some time to dry before the two surfaces are pushed together. Some contact adhesives require as long as 24 hours to dry before the surfaces are to be held together. Once the surfaces are pushed together, the bond forms very quickly. It is usually not necessary to apply pressure for a long time, so there is less need for clamps. Hot Hot adhesives, also known as hot melt adhesives, are thermoplastics applied in molten form (in the 65–180 °C range) which solidify on cooling to form strong bonds between a wide range of materials. Ethylene-vinyl acetate-based hot-melts are particularly popular for crafts because of their ease of use and the wide range of common materials they can join. A glue gun (shown at right) is one method of applying hot adhesives. The glue gun melts the solid adhesive, then allows the liquid to pass through its barrel onto the material, where it solidifies. Thermoplastic glue may have been invented around 1940 by Procter & Gamble as a solution to the problem that water-based adhesives, commonly used in packaging at that time, failed in humid climates, causing packages to open. Anaerobic Anaerobic adhesives cure when in contact with metal, in the absence of oxygen. They work well in a close-fitting space, as when used as a Thread-locking fluid. Multi-part Multi-component adhesives harden by mixing two or more components which chemically react. This reaction causes polymers to cross-link into acrylates, urethanes, and epoxies . There are several commercial combinations of multi-component adhesives in use in industry. Some of these combinations are: Polyester resin – polyurethane resin Polyols – polyurethane resin Acrylic polymers – polyurethane resins The individual components of a multi-component adhesive are not adhesive by nature. The individual components react with each other after being mixed and show full adhesion only on curing. The multi-component resins can be either solvent-based or solvent-less. The solvents present in the adhesives are a medium for the polyester or the polyurethane resin. The solvent is dried during the curing process. Pre-mixed and frozen adhesives Pre-mixed and frozen adhesives (PMFs) are adhesives that are mixed, deaerated, packaged, and frozen. As it is necessary for PMFs to remain frozen before use, once they are frozen at −80 °C they are shipped with dry ice and are required to be stored at or below −40 °C. PMF adhesives eliminate mixing mistakes by the end user and reduce exposure of curing agents that can contain irritants or toxins. PMFs were introduced commercially in the 1960s and are commonly used in aerospace and defense. One-part One-part adhesives harden via a chemical reaction with an external energy source, such as radiation, heat, and moisture. Ultraviolet (UV) light curing adhesives, also known as light curing materials (LCM), have become popular within the manufacturing sector due to their rapid curing time and strong bond strength. Light curing adhesives can cure in as little as one second and many formulations can bond dissimilar substrates (materials) and withstand harsh temperatures. These qualities make UV curing adhesives essential to the manufacturing of items in many industrial markets such as electronics, telecommunications, medical, aerospace, glass, and optical. Unlike traditional adhesives, UV light curing adhesives not only bond materials together but they can also be used to seal and coat products. They are generally acrylic-based. Heat curing adhesives consist of a pre-made mixture of two or more components. When heat is applied the components react and cross-link. This type of adhesive includes thermoset epoxies, urethanes, and polyimides. Moisture curing adhesives cure when they react with moisture present on the substrate surface or in the air. This type of adhesive includes cyanoacrylates and urethanes. By origin Natural Natural adhesives are made from organic sources such as vegetable starch (dextrin), natural resins, or animals (e.g. the milk protein casein and hide-based animal glues). These are often referred to as bioadhesives. One example is a simple paste made by cooking flour in water. Starch-based adhesives are used in corrugated board and paper sack production, paper tube winding, and wallpaper adhesives. Casein glue is mainly used to adhere glass bottle labels. Animal glues have traditionally been used in bookbinding, wood joining, and many other areas but now are largely replaced by synthetic glues except in specialist applications like the production and repair of stringed instruments. Albumen made from the protein component of blood has been used in the plywood industry. Masonite, a wood hardboard, was originally bonded using natural wood lignin, an organic polymer, though most modern particle boards such as MDF use synthetic thermosetting resins. Synthetic Synthetic adhesives are made out of organic compounds. Many are based on elastomers, thermoplastics, emulsions, and thermosets. Examples of thermosetting adhesives are: epoxy, polyurethane, cyanoacrylate and acrylic polymers. The first commercially produced synthetic adhesive was Karlsons Klister in the 1920s. Application Applicators of different adhesives are designed according to the adhesive being used and the size of the area to which the adhesive will be applied. The adhesive is applied to either one or both of the materials being bonded. The pieces are aligned and pressure is added to aid in adhesion and rid the bond of air bubbles. Common ways of applying an adhesive include brushes, rollers, using films or pellets, spray guns and applicator guns (e.g., caulk gun). All of these can be used manually or automated as part of a machine. Mechanisms of adhesion For an adhesive to be effective it must have three main properties. Firstly, it must be able to wet the base material. Wetting is the ability of a liquid to maintain contact with a solid surface. It must also increase in strength after application, and finally

of Antony and Cleopatra opposite Judi Dench, and in 1989, Hopkins made his last appearance on stage in a West End production of M. Butterfly. "It was a torment", he claimed in a later interview. Of a matinee where nobody laughed, there was, he said "not a titter”. When the lights came up, the cast realised the entire audience was Japanese. "Oh God," he recalled, "You’d go to your dressing room and someone would pop their head round the door and say, ‘Coffee? Tea?’ And I’d think, ‘An open razor, please.’" Film 1968–1978: Film debut and Attenborough collaborations In 1968, Hopkins got his break in The Lion in Winter playing Richard the Lionheart, a performance which saw him nominated for the BAFTA Award for Best Actor in a Supporting Role. Making a name for himself as a screen actor, he appeared in Frank Pierson's neo-noir action thriller The Looking Glass War (1970), and Étienne Périer's When Eight Bells Toll (1971). In 1972 he starred as British politician David Lloyd George in Young Winston, and in 1977 he played British Army officer John Frost in the World War II-set film A Bridge Too Far. Both of these films were directed by Richard Attenborough, who described Hopkins as "unquestionably the greatest actor of his generation". He then starred in a film adaptation of the Henrik Ibsen play A Doll's House (1973) alongside Claire Bloom, Ralph Richardson, Denholm Elliott, and Edith Evans. He then appeared in the comedy The Girl from Petrovka (1974) with Goldie Hawn and Hal Holbrook and also starred in the Richard Lester suspense film Juggernaut opposite Richard Harris and Omar Sharif. In 1978 he starred in the sequel to National Velvet (1944), entitled International Velvet with Tatum O'Neal, Christopher Plummer, which was directed by Bryan Forbes. In 1978 he also starred in Attenborough's psychological horror film Magic about a demonic ventriloquist's puppet with Gene Siskel adding it as one of the best films of the year. 1980–1989: The Elephant Man and other roles In 1980, he starred in David Lynch's The Elephant Man as the English doctor Sir Frederick Treves, who attends to Joseph Merrick (portrayed by John Hurt), a severely deformed man in 19th century London. The film received critical praise and attention from critics and received eight Academy Award nominations including for Best Picture. That year he also starred opposite Shirley MacLaine in A Change of Seasons and famously didn't get along with MacLaine, adding "she was the most obnoxious actress I have ever worked with." The film was an immense box office and critical failure. In 1984, he starred opposite Mel Gibson in The Bounty as William Bligh, captain of the Royal Navy ship , in a more accurate retelling of the mutiny on the Bounty. 1990–1998: Hannibal Lecter and Merchant-Ivory films Hopkins won acclaim among critics and audiences as the cannibalistic serial killer Hannibal Lecter in The Silence of the Lambs, for which he won the Academy Award for Best Actor in 1991, with Jodie Foster as Clarice Starling, who also won for Best Actress. The film won Best Picture, Best Director and Academy Award for Best Adapted Screenplay, and Hopkins also picked up his first BAFTA for Best Actor. Hopkins reprised his role as Lecter twice; in Ridley Scott's Hannibal (2001), and Red Dragon (2002). His original portrayal of the character in The Silence of the Lambs has been labelled by the AFI as the number-one film villain. Director Jonathan Demme wanted a British actor for the role, with Jodie Foster stating, "Lecter is a manipulator and has a way of using language to keep people at bay. You wanted to see that Shakespearean monster." At the time he was offered the role, Hopkins was making a return to the London stage, performing in M. Butterfly. He had come back to Britain after living for a number of years in Hollywood, having all but given up on a career there, saying, "Well that part of my life's over; it's a chapter closed. I suppose I'll just have to settle for being a respectable actor poncing around the West End and doing respectable BBC work for the rest of my life." Hopkins played the iconic villain in adaptations of the first three of the Lecter novels by Thomas Harris. The author was reportedly pleased with Hopkins's portrayal of his antagonist. However, Hopkins stated that Red Dragon would feature his final performance as the character, and that he would not reprise even a narrative role in the latest addition to the series, Hannibal Rising. Hopkins played Professor Van Helsing in Francis Ford Coppola's Bram Stoker's Dracula (1992). In 1992, Hopkins starred in Merchant-Ivory's period film based on the E. M. Forster novel Howards End. Hopkins acted alongside Emma Thompson and Helena Bonham Carter where he played the cold businessman Henry Wilcox. The film received enormous critical acclaim, with critic Leonard Maltin calling it "extraordinarily good on every level." The following year, Hopkins reunited with Merchant-Ivory and Emma Thompson in The Remains of the Day (1993), a film set in 1950s post-war Britain based on the novel by Kazuo Ishiguro. The film was ranked by the British Film Institute as one of the 64th greatest British film of the 20th century. Starring as the butler Stevens, Hopkins named it among his favourite films. He was nominated for an Academy Award for Best Actor for his performance, and received the BAFTA Award for Best Actor. Hopkins portrayed Oxford academic C. S. Lewis in the 1993 British biographical film Shadowlands, for which he was nominated for a BAFTA Award for Best Actor. During the 1990s, Hopkins had the chance to work with Bart the Bear in two films: Legends of the Fall (1994) and The Edge (1997). According to trainer, Lynn Seus, "Tony Hopkins was absolutely brilliant with Bart...He acknowledged and respected him like a fellow actor. He would spend hours just looking at Bart and admiring him. He did so many of his own scenes with Bart." Hopkins was Britain's highest paid performer in 1998, starring in The Mask of Zorro and Meet Joe Black, and also agreed to reprise his role as Dr Hannibal Lecter for a fee of £15 million. 2000–2009: Independent films and studio films In 2000, Hopkins narrated Ron Howard's live action remake of How the Grinch Stole Christmas. He then reprised the role of Hannibal Lecter in the long awaited return from The Silence of the Lambs (1991) in its sequel simply entitled Hannibal (2001). Director Ridley Scott and actress Julianne Moore replaced Jonathan Demme and Jodie Foster who declined to participate in the sequel. Hopkins agreed to do the role approving of the script. In the book, Lecter uses bandages to disguise himself as a plastic surgery patient. This was left out of the film because Scott and Hopkins agreed to leave the face alone. Hopkins said: "It's as if he's making a statement—'catch me if you can'. With his big hat, he's so obvious that nobody thinks he's Hannibal Lecter. I've always thought he's a very elegant man, a Renaissance man." In the film, Lecter is first seen in Florence "as the classical Lecter, lecturing and being smooth", according to Hopkins. When the film moves to the U.S., Hopkins changed his appearance by building up muscle and cropping his hair short "to make him like a mercenary, that he would be so fit and so strong that he could just snap somebody in two if they got ... in his way". The film broke international box office records receiving $351 million dollars. but received mixed reviews from critics. Hopkins starred in the third film in the series Red Dragon (2002) alongside Ralph Fiennes, Edward Norton, Harvey Keitel, Emily Watson, and Philip Seymour Hoffman. The film received favourable reviews and was a box office hit. In 2003, Hopkins received a star on the Hollywood Walk of Fame. Hopkins stated that his role as Burt Munro, whom he portrayed in his 2005 film The World's Fastest Indian, was his favourite. He also asserted that Munro was the easiest role that he had played because both men have a similar outlook on life. In 2006, Hopkins was the recipient of the Golden Globe Cecil B. DeMille Award for lifetime achievement. In 2008, he received the BAFTA Academy Fellowship Award, the highest award the British Film Academy can bestow. In a 2003 poll conducted by Channel 4 Hopkins was ranked seventh on their list of the 100 Greatest Movie Stars. 2010–2017: Thor franchise and action films On 24 February 2010, it was announced that Hopkins had been cast in The Rite, which was released on 28 January 2011. He played a priest who is "an expert in exorcisms and whose methods are not necessarily traditional". Hopkins, an agnostic who is quoted as saying "I don't know what I believe, myself personally", reportedly wrote a line—"Some days I don't know if I believe in God or Santa Claus or Tinkerbell"—into his character to identify with it. In 2011, Hopkins has said, "what I enjoy is uncertainty. … I don't know. You don't know." On 21 September 2011, Peter R. de Vries cast Hopkins in the role of the Heineken owner Freddy Heineken, in the film about his kidnapping. Kidnapping Freddy Heineken, was released in 2015. Hopkins portrayed Odin, the Allfather or "king" of Asgard, in the 2011 film adaptation of Marvel Comics' Thor and would go on to reprise his role as Odin in Thor: The Dark World in 2013, and again in 2017's Thor: Ragnarok. Hopkins portrayed Alfred Hitchcock in Sacha Gervasi's biopic Hitchcock alongside Helen Mirren who played Hitchcock's wife, Alma Reville. The film focuses on the film of Psycho and that which followed. He starred in the comedy action film Red 2 (2013) as the main antagonist Edward Bailey. In 2014, he portrayed Methuselah in Darren Aronofsky's Noah. Hopkins played Autobot ally Sir Edmund Burton in Transformers: The Last Knight, which was released in June 2017. 2019–2021: Career resurgence and awards success In 2019, Hopkins portrayed Pope Benedict XVI opposite Jonathan Pryce as Pope Francis in Fernando Meirelles's The Two Popes. He stated, "The great treasure was working with – apart from [director] Meirelles – Pryce. We’re both from Wales. He’s from the north, and I’m from the south". The film is set in the Vatican City in the aftermath of the Vatican leaks scandal and follows Pope Benedict XVI as he attempts to convince Cardinal Jorge Mario Bergoglio to reconsider his decision to resign as an archbishop as he confides his own intentions to abdicate the papacy. In August 2019, the film premiered at the Telluride Film Festival to critical acclaim. The film started streaming on December 20, 2019, by Netflix. The performances of Pryce and Hopkins, as well as McCarten's screenplay, received high praise from critics, and all three men received nominations for their work at the Academy Awards, Golden Globes and British Academy Film Awards. In 2020, Hopkins played a man struggling with his memory in The Father. The film premiered at the Sundance Film Festival where it received critical acclaim, with many critics praising Hopkins's performance and calling him a standout and Oscar frontrunner. The film also stars Olivia Colman as his daughter. It is based on a Tony Award nominated play Le Père by Florian Zeller, who also directed the film. The Father was released on 18 December 2020 by Sony Pictures Classics. In a Q&A at the Telluride Film Festival Hopkins praised both Colman and Zeller saying comparing the working experience saying it "might've been the highlight of my life". Hopkins mentioned how lucky he's been over the past five years working with Ian McKellen in The Dresser, Emma Thompson in King Lear, and Jonathan Pryce in The Two Popes. Hopkins won the BAFTA Award for Best Actor in a Leading Role for his performance in The Father, making it his fourth BAFTA and his third for Best Actor. He also won a second Academy Award for Best Actor for his role, becoming the oldest person to win an acting Oscar. Hopkins did not attend the Oscars ceremony, but accepted the award in a video posted on social media, from Wales, the following day, saying: "Here I am in my homeland in Wales. And at 83 years of age, I did not expect to get this award. I really didn't and am very grateful to the Academy and thank you." He also paid tribute to fellow nominee Chadwick Boseman, who had died the previous year. Television 1967–1973: Television debut and Masterpiece theatre He made his small-screen debut in a 1967 BBC broadcast of A Flea in Her Ear. His first starring role in a film came in 1964 in Changes, a short directed by Drewe Henley, written and produced by James Scott and co-starring Jacqueline Pearce. Hopkins portrayed Charles Dickens in the BBC television film The Great Inimitable Mr. Dickens in 1970, and Pierre Bezukhov in the BBC's mini series War and Peace (1972), receiving the British Academy Television Award for Best Actor for his performance in the latter. In 1973 he again portrayed David Lloyd George in the BBC miniseries The Edwardians which aired in the US in 1974 on Masterpiece Theatre. 1981–1993: Miniseries and awards success In 1981 he starred in the CBS television movie The Bunker portraying Adolf Hitler during weeks in and around his underground bunker in Berlin before and during the Battle of Berlin. John O'Connor praised Hopkins in his New York Times review: "The portrait becomes all the more riveting through an extraordinarily powerful performance from Anthony Hopkins. His Hitler is mad, often contemptible, but always understandable. Part of the problem, perhaps, is that the monster becomes a little too understandable. He is not made sympathetic, exactly, but he is given decidedly pathetic dimensions, making him just that much more acceptable as a dramatic and historical character." For his performance he received a Primetime Emmy Award for Outstanding Lead Actor in a Limited Series or Movie. That same year he starred as Paul the Apostle opposite Robert Foxworth as Saint Peter in the biblical drama and miniseries Peter and Paul (1981). The following year he starred as Quasimodo in the CBS television movie The Hunchback of Notre Dame (1982). The movie also starred Derek Jacobi, David Suchet, Tim Pigott-Smith, Nigel Hawthorne, and John Gielgud. He also starred in Strangers and Brothers (1984), Arch of Triumph (1984), Guilty Conscience (1985), Mussolini and I (1985), and The Tenth Man (1988). In 1989 he starred as Abel Magwitch in the miniseries Great Expectations which was broadcast on ITV in the UK and The Disney Channel in the US. The adaptation of the Dickens’ novel also starred Jean Simmons and John Rhys-Davies. He received his fourth Primetime Emmy Award nomination, this time for Outstanding Supporting Actor in a Limited Series or Movie. 2015–2018: The Dresser, Westworld and King Lear In October 2015, Hopkins appeared as Sir in a BBC Two production of Ronald Harwood's The Dresser, alongside Ian McKellen, Edward Fox and Emily Watson. The Dresser is set in a London theatre during the Blitz, where an aging actor-manager, Sir, prepares for his starring role in King Lear with the help of his devoted dresser, Norman. Hopkins described his role as Sir as "the highlight of my life. It was a chance to work with the actors I had run away from. To play another actor is fun because you know the ins and outs of their thinking – especially with someone like Sir, who is a diabolically insecure, egotistical man." He spoke again on the impact the role had on him in 2018, "When I was at the Royal National Theatre all those years ago, I knew I had something in me, but I didn’t have the discipline. I had a Welsh temperament and didn’t have that 'fitting in' mechanism. I would fight, I would rebel. I thought, 'Well, I don’t belong here.' And for almost 50 years afterwards, I felt that edge

National Theatre production of Antony and Cleopatra opposite Judi Dench, and in 1989, Hopkins made his last appearance on stage in a West End production of M. Butterfly. "It was a torment", he claimed in a later interview. Of a matinee where nobody laughed, there was, he said "not a titter”. When the lights came up, the cast realised the entire audience was Japanese. "Oh God," he recalled, "You’d go to your dressing room and someone would pop their head round the door and say, ‘Coffee? Tea?’ And I’d think, ‘An open razor, please.’" Film 1968–1978: Film debut and Attenborough collaborations In 1968, Hopkins got his break in The Lion in Winter playing Richard the Lionheart, a performance which saw him nominated for the BAFTA Award for Best Actor in a Supporting Role. Making a name for himself as a screen actor, he appeared in Frank Pierson's neo-noir action thriller The Looking Glass War (1970), and Étienne Périer's When Eight Bells Toll (1971). In 1972 he starred as British politician David Lloyd George in Young Winston, and in 1977 he played British Army officer John Frost in the World War II-set film A Bridge Too Far. Both of these films were directed by Richard Attenborough, who described Hopkins as "unquestionably the greatest actor of his generation". He then starred in a film adaptation of the Henrik Ibsen play A Doll's House (1973) alongside Claire Bloom, Ralph Richardson, Denholm Elliott, and Edith Evans. He then appeared in the comedy The Girl from Petrovka (1974) with Goldie Hawn and Hal Holbrook and also starred in the Richard Lester suspense film Juggernaut opposite Richard Harris and Omar Sharif. In 1978 he starred in the sequel to National Velvet (1944), entitled International Velvet with Tatum O'Neal, Christopher Plummer, which was directed by Bryan Forbes. In 1978 he also starred in Attenborough's psychological horror film Magic about a demonic ventriloquist's puppet with Gene Siskel adding it as one of the best films of the year. 1980–1989: The Elephant Man and other roles In 1980, he starred in David Lynch's The Elephant Man as the English doctor Sir Frederick Treves, who attends to Joseph Merrick (portrayed by John Hurt), a severely deformed man in 19th century London. The film received critical praise and attention from critics and received eight Academy Award nominations including for Best Picture. That year he also starred opposite Shirley MacLaine in A Change of Seasons and famously didn't get along with MacLaine, adding "she was the most obnoxious actress I have ever worked with." The film was an immense box office and critical failure. In 1984, he starred opposite Mel Gibson in The Bounty as William Bligh, captain of the Royal Navy ship , in a more accurate retelling of the mutiny on the Bounty. 1990–1998: Hannibal Lecter and Merchant-Ivory films Hopkins won acclaim among critics and audiences as the cannibalistic serial killer Hannibal Lecter in The Silence of the Lambs, for which he won the Academy Award for Best Actor in 1991, with Jodie Foster as Clarice Starling, who also won for Best Actress. The film won Best Picture, Best Director and Academy Award for Best Adapted Screenplay, and Hopkins also picked up his first BAFTA for Best Actor. Hopkins reprised his role as Lecter twice; in Ridley Scott's Hannibal (2001), and Red Dragon (2002). His original portrayal of the character in The Silence of the Lambs has been labelled by the AFI as the number-one film villain. Director Jonathan Demme wanted a British actor for the role, with Jodie Foster stating, "Lecter is a manipulator and has a way of using language to keep people at bay. You wanted to see that Shakespearean monster." At the time he was offered the role, Hopkins was making a return to the London stage, performing in M. Butterfly. He had come back to Britain after living for a number of years in Hollywood, having all but given up on a career there, saying, "Well that part of my life's over; it's a chapter closed. I suppose I'll just have to settle for being a respectable actor poncing around the West End and doing respectable BBC work for the rest of my life." Hopkins played the iconic villain in adaptations of the first three of the Lecter novels by Thomas Harris. The author was reportedly pleased with Hopkins's portrayal of his antagonist. However, Hopkins stated that Red Dragon would feature his final performance as the character, and that he would not reprise even a narrative role in the latest addition to the series, Hannibal Rising. Hopkins played Professor Van Helsing in Francis Ford Coppola's Bram Stoker's Dracula (1992). In 1992, Hopkins starred in Merchant-Ivory's period film based on the E. M. Forster novel Howards End. Hopkins acted alongside Emma Thompson and Helena Bonham Carter where he played the cold businessman Henry Wilcox. The film received enormous critical acclaim, with critic Leonard Maltin calling it "extraordinarily good on every level." The following year, Hopkins reunited with Merchant-Ivory and Emma Thompson in The Remains of the Day (1993), a film set in 1950s post-war Britain based on the novel by Kazuo Ishiguro. The film was ranked by the British Film Institute as one of the 64th greatest British film of the 20th century. Starring as the butler Stevens, Hopkins named it among his favourite films. He was nominated for an Academy Award for Best Actor for his performance, and received the BAFTA Award for Best Actor. Hopkins portrayed Oxford academic C. S. Lewis in the 1993 British biographical film Shadowlands, for which he was nominated for a BAFTA Award for Best Actor. During the 1990s, Hopkins had the chance to work with Bart the Bear in two films: Legends of the Fall (1994) and The Edge (1997). According to trainer, Lynn Seus, "Tony Hopkins was absolutely brilliant with Bart...He acknowledged and respected him like a fellow actor. He would spend hours just looking at Bart and admiring him. He did so many of his own scenes with Bart." Hopkins was Britain's highest paid performer in 1998, starring in The Mask of Zorro and Meet Joe Black, and also agreed to reprise his role as Dr Hannibal Lecter for a fee of £15 million. 2000–2009: Independent films and studio films In 2000, Hopkins narrated Ron Howard's live action remake of How the Grinch Stole Christmas. He then reprised the role of Hannibal Lecter in the long awaited return from The Silence of the Lambs (1991) in its sequel simply entitled Hannibal (2001). Director Ridley Scott and actress Julianne Moore replaced Jonathan Demme and Jodie Foster who declined to participate in the sequel. Hopkins agreed to do the role approving of the script. In the book, Lecter uses bandages to disguise himself as a plastic surgery patient. This was left out of the film because Scott and Hopkins agreed to leave the face alone. Hopkins said: "It's as if he's making a statement—'catch me if you can'. With his big hat, he's so obvious that nobody thinks he's Hannibal Lecter. I've always thought he's a very elegant man, a Renaissance man." In the film, Lecter is first seen in Florence "as the classical Lecter, lecturing and being smooth", according to Hopkins. When the film moves to the U.S., Hopkins changed his appearance by building up muscle and cropping his hair short "to make him like a mercenary, that he would be so fit and so strong that he could just snap somebody in two if they got ... in his way". The film broke international box office records receiving $351 million dollars. but received mixed reviews from critics. Hopkins starred in the third film in the series Red Dragon (2002) alongside Ralph Fiennes, Edward Norton, Harvey Keitel, Emily Watson, and Philip Seymour Hoffman. The film received favourable reviews and was a box office hit. In 2003, Hopkins received a star on the Hollywood Walk of Fame. Hopkins stated that his role as Burt Munro, whom he portrayed in his 2005 film The World's Fastest Indian, was his favourite. He also asserted that Munro was the easiest role that he had played because both men have a similar outlook on life. In 2006, Hopkins was the recipient of the Golden Globe Cecil B. DeMille Award for lifetime achievement. In 2008, he received the BAFTA Academy Fellowship Award, the highest award the British Film Academy can bestow. In a 2003 poll conducted by Channel 4 Hopkins was ranked seventh on their list of the 100 Greatest Movie Stars. 2010–2017: Thor franchise and action films On 24 February 2010, it was announced that Hopkins had been cast in The Rite, which was released on 28 January 2011. He played a priest who is "an expert in exorcisms and whose methods are not necessarily traditional". Hopkins, an agnostic who is quoted as saying "I don't know what I believe, myself personally", reportedly wrote a line—"Some days I don't know if I believe in God or Santa Claus or Tinkerbell"—into his character to identify with it. In 2011, Hopkins has said, "what I enjoy is uncertainty. … I don't know. You don't know." On 21 September 2011, Peter R. de Vries cast Hopkins in the role of the Heineken owner Freddy Heineken, in the film about his kidnapping. Kidnapping Freddy Heineken, was released in 2015. Hopkins portrayed Odin, the Allfather or "king" of Asgard, in the 2011 film adaptation of Marvel Comics' Thor and would go on to reprise his role as Odin in Thor: The Dark World in 2013, and again in 2017's Thor: Ragnarok. Hopkins portrayed Alfred Hitchcock in Sacha Gervasi's biopic Hitchcock alongside Helen Mirren who played Hitchcock's wife, Alma Reville. The film focuses on the film of Psycho and that which followed. He starred in the comedy action film Red 2 (2013) as the main antagonist Edward Bailey. In 2014, he portrayed Methuselah in Darren Aronofsky's Noah. Hopkins played Autobot ally Sir Edmund Burton in Transformers: The Last Knight, which was released in June 2017. 2019–2021: Career resurgence and awards success In 2019, Hopkins portrayed Pope Benedict XVI opposite Jonathan Pryce as Pope Francis in Fernando Meirelles's The Two Popes. He stated, "The great treasure was working with – apart from [director] Meirelles – Pryce. We’re both from Wales. He’s from the north, and I’m from the south". The film is set in the Vatican City in the aftermath of the Vatican leaks scandal and follows Pope Benedict XVI as he attempts to convince Cardinal Jorge Mario Bergoglio to reconsider his decision to resign as an archbishop as he confides his own intentions to abdicate the papacy. In August 2019, the film premiered at the Telluride Film Festival to critical acclaim. The film started streaming on December 20, 2019, by Netflix. The performances of Pryce and Hopkins, as well as McCarten's screenplay, received high praise from critics, and all three men received nominations for their work at the Academy Awards, Golden Globes and British Academy Film Awards. In 2020, Hopkins played a man struggling with his memory in The Father. The film premiered at the Sundance Film Festival where it received critical acclaim, with many critics praising Hopkins's performance and calling him a standout and Oscar frontrunner. The film also stars Olivia Colman as his daughter. It is based on a Tony Award nominated play Le Père by Florian Zeller, who also directed the film. The Father was released on 18 December 2020 by Sony Pictures Classics. In a Q&A at the Telluride Film Festival Hopkins praised both Colman and Zeller saying comparing the working experience saying it "might've been the highlight of my life". Hopkins mentioned how lucky he's been over the past five years working with Ian McKellen in The Dresser, Emma Thompson in King Lear, and Jonathan Pryce in The Two Popes. Hopkins won the BAFTA Award for Best Actor in a Leading Role for his performance in The Father, making it his fourth BAFTA and his third for Best Actor. He also won a second Academy Award for Best Actor for his role, becoming the oldest person to win an acting Oscar. Hopkins did not attend the Oscars ceremony, but accepted the award in a video posted on social media, from Wales, the following day, saying: "Here I am in my homeland in Wales. And at 83 years of age, I did not expect to get this award. I really didn't and am very grateful to the Academy and thank you." He also paid tribute to fellow nominee Chadwick Boseman, who had died the previous year. Television 1967–1973: Television debut and Masterpiece theatre He made his small-screen debut in a 1967 BBC broadcast of A Flea in Her Ear. His first starring role in a film came in 1964 in Changes, a short directed by Drewe Henley, written and produced by James Scott and co-starring Jacqueline Pearce. Hopkins portrayed Charles Dickens in the BBC television film The Great Inimitable Mr. Dickens in 1970, and Pierre Bezukhov in the BBC's mini series War and Peace (1972), receiving the British Academy Television Award for Best Actor for his performance in the latter. In 1973 he again portrayed David Lloyd George in the BBC miniseries The Edwardians which aired in the US in 1974 on Masterpiece Theatre. 1981–1993: Miniseries and awards success In 1981 he starred in the CBS television movie The Bunker portraying Adolf Hitler during weeks in and around his underground bunker in Berlin before and during the Battle of Berlin. John O'Connor praised Hopkins in his New York Times review: "The portrait becomes all the more riveting through an extraordinarily powerful performance from Anthony Hopkins. His Hitler is mad, often contemptible, but always understandable. Part of the problem, perhaps, is that the monster becomes a little too understandable. He is not made sympathetic, exactly, but he is given decidedly pathetic dimensions, making him just that much more acceptable as a dramatic and historical character." For his performance he received a Primetime Emmy Award for Outstanding Lead Actor in a Limited Series or Movie. That same year he starred as Paul the Apostle opposite Robert Foxworth as Saint Peter in the biblical drama and miniseries Peter and Paul (1981). The following year he starred as Quasimodo in the CBS television movie The Hunchback of Notre Dame (1982). The movie also starred Derek Jacobi, David Suchet, Tim Pigott-Smith, Nigel Hawthorne, and John Gielgud. He also starred in Strangers and Brothers (1984), Arch of Triumph (1984), Guilty Conscience (1985), Mussolini and I (1985), and The Tenth Man (1988). In 1989 he starred as Abel Magwitch in the miniseries Great Expectations which was broadcast on ITV in the UK and The Disney Channel in the US. The adaptation of the Dickens’ novel also starred Jean Simmons and John Rhys-Davies. He received his fourth Primetime Emmy Award nomination, this time for Outstanding Supporting Actor in a Limited Series or Movie. 2015–2018: The Dresser, Westworld and King Lear

role in The Butcher Boy as Joe's (Francie's best friend) father, and appeared in an episode of the original Whose Line is it Anyway?. In 2000, O'Hanlon starred in the comedy series My Hero, in which he played a very naive superhero from the planet Ultron. His character juggled world-saving heroics with life in suburbia. He stayed in the role until the first episode of series 6 in July 2006, when he was replaced by James Dreyfus during the same episode. O'Hanlon also provided the voice of the lead character in the three Christmas television cartoon specials of Robbie the Reindeer. He appeared in the 2005 BBC One sitcom Blessed, written by Ben Elton; at the 2005 British Comedy Awards, it was publicly slated by Jonathan Ross, albeit in jest. Towards the end of 2005, he played an eccentric Scottish character, Coconut Tam, in the family based film, The Adventures of Greyfriars Bobby. He has also appeared on radio, including an appearance on Quote... Unquote on BBC Radio 4 on 18 July 2011. Appropriately, one of his questions concerned a quotation from Father Ted. In 2015 he appeared as incompetent angel Smallbone in the sitcom The Best Laid Plans, on the same channel. In 2006, O'Hanlon wrote and presented an RTÉ television series called Leagues Apart, which saw him investigate the biggest and most passionate football rivalries in a number of European countries. Included were Roma vs Lazio in Italy, Barcelona vs Real Madrid in Spain, and Galatasaray vs Fenerbahce in Turkey. He followed this with another RTÉ show, So You Want To Be Taoiseach? in 2007. It was a political series in which O'Hanlon gave tongue-in-cheek advice on how to go about becoming Taoiseach of Ireland. He appeared in the Doctor Who episode "Gridlock", broadcast on 14 April 2007, in which he played a cat-like creature named Thomas Kincade Brannigan. O'Hanlon appears in Series 3 of the TV show Skins, playing Naomi Campbell (Lily Loveless)'s Politics teacher named Kieran, who attempted to kiss her. He then went on to form a relationship with Naomi's mother (Olivia Colman). O'Hanlon plays the lead role in Irish comedy television programme Val Falvey, TD on RTÉ One. He has recently performed in the Edinburgh Fringe. In February 2011, O'Hanlon returned to the Gate Theatre, Dublin starring in the Irish premiere of Christopher Hampton's translation of Yasmina Reza's God of Carnage, alongside Maura Tierney. Later that year, he appeared in the comedy panel show Argumental. O'Hanlon has written a novel, The Talk of the Town (known in the United States as Knick Knack Paddy Whack), which was published in 1998. The novel is about a teenage boy, Patrick Scully, and his friends. In February 2015

concerned a quotation from Father Ted. In 2015 he appeared as incompetent angel Smallbone in the sitcom The Best Laid Plans, on the same channel. In 2006, O'Hanlon wrote and presented an RTÉ television series called Leagues Apart, which saw him investigate the biggest and most passionate football rivalries in a number of European countries. Included were Roma vs Lazio in Italy, Barcelona vs Real Madrid in Spain, and Galatasaray vs Fenerbahce in Turkey. He followed this with another RTÉ show, So You Want To Be Taoiseach? in 2007. It was a political series in which O'Hanlon gave tongue-in-cheek advice on how to go about becoming Taoiseach of Ireland. He appeared in the Doctor Who episode "Gridlock", broadcast on 14 April 2007, in which he played a cat-like creature named Thomas Kincade Brannigan. O'Hanlon appears in Series 3 of the TV show Skins, playing Naomi Campbell (Lily Loveless)'s Politics teacher named Kieran, who attempted to kiss her. He then went on to form a relationship with Naomi's mother (Olivia Colman). O'Hanlon plays the lead role in Irish comedy television programme Val Falvey, TD on RTÉ One. He has recently performed in the Edinburgh Fringe. In February 2011, O'Hanlon returned to the Gate Theatre, Dublin starring in the Irish premiere of Christopher Hampton's translation of Yasmina Reza's God of Carnage, alongside Maura Tierney. Later that year, he appeared in the comedy panel show Argumental. O'Hanlon has written a novel, The Talk of the Town (known in the United States as Knick Knack Paddy Whack), which was published in 1998. The novel is about a teenage boy, Patrick Scully, and his friends. In February 2015 he officially launched the 2015 Sky Cat Laughs Comedy Festival, which took place in Kilkenny from 28 May–1 June. In 2015 he played the role of Peter the Milkman in the Sky One sitcom After Hours. On 2 February 2017, it was announced he would play the lead role in the BBC crime drama Death in Paradise taking the role of DI Jack Mooney following Kris Marshall's departure the same day. He announced his intention to leave the series in early 2020 and was replaced by Ralf Little. On 25 November 2021, it was announced that he would participate in series 13 of Taskmaster. TV and filmography Stand-up O'Hanlon has been doing stand-up comedy for many years, appearing on many shows including Live at the Apollo, Michael McIntyre's Comedy Roadshow and Dave's One Night Stand. In 1994 he won the Hackney Empire New Act of the Year. Awards Personal life O'Hanlon met his wife Melanie as a teenager. They have three children: Emily, Rebecca and Red. He is a supporter of Leeds United. References External links Ardal O'Hanlon on comedycv.co.uk Ardal O'Hanlon in Melbourne at The Australian Ireland Fund charity event 1965 births 20th-century Irish comedians 21st-century Irish comedians Living

sales in fiscal year 1978 topped $100 million, and in 1979, AMD debuted on the New York Stock Exchange. In 1979, production also began on AMD's new semiconductor fabrication plant in Austin, Texas; the company already had overseas assembly facilities in Penang and Manila, and began construction on a fabrication plant in San Antonio in 1981. In 1980, AMD began supplying semiconductor products for telecommunications, an industry undergoing rapid expansion and innovation. Technology exchange agreement with Intel Intel had introduced the first x86 microprocessors in 1978. In 1981, IBM created its PC, and wanted Intel's x86 processors, but only under the condition that Intel also provide a second-source manufacturer for its patented x86 microprocessors. Intel and AMD entered into a 10-year technology exchange agreement, first signed in October 1981 and formally executed in February 1982. The terms of the agreement were that each company could acquire the right to become a second-source manufacturer of semiconductor products developed by the other; that is, each party could "earn" the right to manufacture and sell a product developed by the other, if agreed to, by exchanging the manufacturing rights to a product of equivalent technical complexity. The technical information and licenses needed to make and sell a part would be exchanged for a royalty to the developing company. The 1982 agreement also extended the 1976 AMD–Intel cross-licensing agreement through 1995. The agreement included the right to invoke arbitration of disagreements, and after five years the right of either party to end the agreement with one year's notice. The main result of the 1982 agreement was that AMD became a second-source manufacturer of Intel's x86 microprocessors and related chips, and Intel provided AMD with database tapes for its 8086, 80186, and 80286 chips. However, in the event of a bankruptcy or takeover of AMD, the cross-licensing agreement would be effectively cancelled. Beginning in 1982, AMD began volume-producing second-source Intel-licensed 8086, 8088, 80186, and 80188 processors, and by 1984, its own Am286 clone of Intel's 80286 processor, for the rapidly growing market of IBM PCs and IBM clones. It also continued its successful concentration on proprietary bipolar chips. In 1983, it introduced INT.STD.1000, the highest manufacturing quality standard in the industry. The company continued to spend greatly on research and development, and in addition to other breakthrough products, created the world's first 512K EPROM in 1984. That year, AMD was listed in the book The 100 Best Companies to Work for in America, and later made the Fortune 500 list for the first time in 1985. By mid-1985, the microchip market experienced a severe downturn, mainly due to long-term aggressive trade practices (dumping) from Japan, but also due to a crowded and non-innovative chip market in the United States. AMD rode out the mid-1980s crisis by aggressively innovating and modernizing, devising the Liberty Chip program of designing and manufacturing one new chip or chipset per week for 52 weeks in fiscal year 1986, and by heavily lobbying the U.S. government until sanctions and restrictions were put in place to prevent predatory Japanese pricing. During this time, AMD withdrew from the DRAM market, and made some headway into the CMOS market, which it had lagged in entering, having focused instead on bipolar chips. AMD had some success in the mid-1980s with the AMD7910 and AMD7911 "World Chip" FSK modem, one of the first multi-standard devices that covered both Bell and CCITT tones at up to 1200 baud half duplex or 300/300 full duplex. Beginning in 1986, AMD embraced the perceived shift toward RISC with their own AMD Am29000 (29k) processor; the 29k survived as an embedded processor. The company also increased its EPROM memory market share in the late 1980s. Throughout the 1980s, AMD was a second-source supplier of Intel x86 processors. In 1991, it introduced its own 386-compatible Am386, an AMD-designed chip. Creating its own chips, AMD began to compete directly with Intel. AMD had a large, successful flash memory business, even during the dotcom bust. In 2003, to divest some manufacturing and aid its overall cash flow, which was under duress from aggressive microprocessor competition from Intel, AMD spun off its flash memory business and manufacturing into Spansion, a joint venture with Fujitsu, which had been co-manufacturing flash memory with AMD since 1993. In December 2005, AMD divested itself of Spansion in order to focus on the microprocessor market, and Spansion went public in an IPO. Acquisition of ATI, spin-off of GlobalFoundries, and acquisition of Xilinx On July 24, 2006, AMD announced its acquisition of the graphics processor company ATI Technologies. AMD paid $4.3 billion and 58 million shares of its stock, for a total of approximately $5.4 billion. The transaction was completed on October 25, 2006. On August 30, 2010, AMD announced that it would retire the ATI brand name for its graphics chipsets in favor of the AMD brand name. In October 2008, AMD announced plans to spin off manufacturing operations in the form of GlobalFoundries Inc., a multibillion-dollar joint venture with Advanced Technology Investment Co., an investment company formed by the government of Abu Dhabi. The partnership and spin-off gave AMD an infusion of cash and allowed it to focus solely on chip design. To assure the Abu Dhabi investors of the new venture's success, AMD's CEO Hector Ruiz stepped down in July 2008, while remaining executive chairman, in preparation for becoming chairman of GlobalFoundries in March 2009. President and COO Dirk Meyer became AMD's CEO. Recessionary losses necessitated AMD cutting 1,100 jobs in 2009. In August 2011, AMD announced that former Lenovo executive Rory Read would be joining the company as CEO, replacing Meyer. In November 2011, AMD announced plans to lay off more than 10% (1,400) of its employees from across all divisions worldwide. In October 2012, it announced plans to lay off an additional 15% of its workforce to reduce costs in the face of declining sales revenue. AMD acquired the low-power server manufacturer SeaMicro in early 2012, with an eye to bringing out an ARM architecture server chip. On October 8, 2014, AMD announced that Rory Read had stepped down after three years as president and chief executive officer. He was succeeded by Lisa Su, a key lieutenant who had been serving as chief operating officer since June. On October 16, 2014, AMD announced a new restructuring plan along with its Q3 results. Effective July 1, 2014, AMD reorganized into two business groups: Computing and Graphics, which primarily includes desktop and notebook processors and chipsets, discrete GPUs, and professional graphics; and Enterprise, Embedded, and Semi-Custom, which primarily includes server and embedded processors, dense servers, semi-custom SoC products (including solutions for gaming consoles), engineering services, and royalties. As part of this restructuring, AMD announced that 7% of its global workforce would be laid off by the end of 2014. After the GlobalFoundries spin-off and subsequent layoffs, AMD was left with significant vacant space at 1 AMD Place, its aging Sunnyvale headquarters office complex. In August 2016, AMD's 47 years in Sunnyvale came to a close when it signed a lease with the Irvine Company for a new 220,000 sq. ft. headquarters building in Santa Clara. AMD's new location at Santa Clara Square faces the headquarters of archrival Intel across the Bayshore Freeway and San Tomas Aquino Creek. Around the same time, AMD also agreed to sell 1 AMD Place to the Irvine Company. In April 2019, the Irvine Company secured approval from the Sunnyvale City Council of its plans to demolish 1 AMD Place and redevelop the entire 32-acre site into townhomes and apartments. In October 2020, AMD announced that it was acquiring Xilinx in an all-stock transaction. The acquisition of Xilinx was completed in February 2022, with an estimated acquisition price of $50 billion. List of CEOs Products CPUs and APUs IBM PC and the x86 architecture In February 1982, AMD signed a contract with Intel, becoming a licensed second-source manufacturer of 8086 and 8088 processors. IBM wanted to use the Intel 8088 in its IBM PC, but its policy at the time was to require at least two sources for its chips. AMD later produced the Am286 under the same arrangement. In 1984, Intel internally decided to no longer cooperate with AMD in supplying product information in order to shore up its advantage in the marketplace, and delayed and eventually refused to convey the technical details of the Intel 80386. In 1987, AMD invoked arbitration over the issue, and Intel reacted by canceling the 1982 technological-exchange agreement altogether. After three years of testimony, AMD eventually won in arbitration in 1992, but Intel disputed this decision. Another long legal dispute followed, ending in 1994 when the Supreme Court of California sided with the arbitrator and AMD. In 1990, Intel countersued AMD, renegotiating AMD's right to use derivatives of Intel's microcode for its cloned processors. In the face of uncertainty during the legal dispute, AMD was forced to develop clean room designed versions of Intel code for its x386 and x486 processors, the former long after Intel had released its own x386 in 1985. In March 1991, AMD released the Am386, its clone of the Intel 386 processor. By October of the same year it had sold one million units. In 1993, AMD introduced the first of the Am486 family of processors, which proved popular with a large number of original equipment manufacturers, including Compaq, which signed an exclusive agreement using the Am486. The Am5x86, another Am486-based processor, was released in November 1995, and continued AMD's success as a fast, cost-effective processor. Finally, in an agreement effective 1996, AMD received the rights to the microcode in Intel's x386 and x486 processor families, but not the rights to the microcode in the following generations of processors. K5, K6, Athlon, Duron, and Sempron AMD's first in-house x86 processor was the K5, launched in 1996. The "K" in its name was a reference to Kryptonite, the only substance which known to harm comic book character Superman. This itself was a reference to Intel's hegemony over the market, i.e., an anthropomorphization of them as Superman. The number "5" was a reference to the fifth generation of x86 processors; rival Intel had previously introduced its line of fifth-generation x86 processors as Pentium because the U.S. Trademark and Patent Office had ruled that mere numbers could not be trademarked. In 1996, AMD purchased NexGen, specifically for the rights to their Nx series of x86-compatible processors. AMD gave the NexGen design team their own building, left them alone, and gave them time and money to rework the Nx686. The result was the K6 processor, introduced in 1997. Although it was based on Socket 7, variants such as K6-3/450 were faster than Intel's Pentium II (sixth-generation processor). The K7 was AMD's seventh-generation x86 processor, making its debut under the brand name Athlon on June 23, 1999. Unlike previous AMD processors, it could not be used on the same motherboards as Intel's, due to licensing issues surrounding Intel's Slot 1 connector, and instead used a Slot A connector, referenced to the Alpha processor bus. The Duron was a lower-cost and limited version of the Athlon (64KB instead of 256KB L2 cache) in a 462-pin socketed PGA (socket A) or soldered directly onto the motherboard. Sempron was released as a lower-cost Athlon XP, replacing Duron in the socket A PGA era. It has since been migrated upward to all new sockets, up to AM3. On October 9, 2001, the Athlon XP was released. On February 10, 2003, the Athlon XP with 512KB L2 Cache was released. Athlon 64, Opteron and Phenom The K8 was a major revision of the K7 architecture, with the most notable features being the addition of a 64-bit extension to the x86 instruction set (called x86-64, AMD64, or x64), the incorporation of an on-chip memory controller, and the implementation of an extremely high performance point-to-point interconnect called HyperTransport, as part of the Direct Connect Architecture. The technology was initially launched as the Opteron server-oriented processor on April 22, 2003. Shortly thereafter, it was incorporated into a product for desktop PCs, branded Athlon 64. On April 21, 2005, AMD released the first dual core Opteron, an x86-based server CPU. A month later, it released the Athlon 64 X2, the first desktop-based dual core processor family. In May 2007, AMD abandoned the string "64" in its dual-core desktop product branding, becoming Athlon X2, downplaying the significance of 64-bit computing in its processors. Further updates involved improvements to the microarchitecture, and a shift of the target market from mainstream desktop systems to value dual-core desktop systems. In 2008, AMD started to release dual-core Sempron processors exclusively in China, branded as the Sempron 2000 series, with lower HyperTransport speed and smaller L2 cache. AMD completed its dual-core product portfolio for each market segment. In September 2007, AMD released the first server Opteron K10 processors, followed in November by the Phenom processor for desktop. K10 processors came in dual-core, triple-core, and quad-core versions, with all cores on a single die. AMD released a new platform codenamed "Spider", which utilized the new Phenom processor, as well as an R770 GPU and a 790 GX/FX chipset from the AMD 700 chipset series. However, AMD built the Spider at 65nm, which was uncompetitive with Intel's smaller and more power-efficient 45nm. In January 2009, AMD released a new processor line dubbed Phenom II, a refresh of the original Phenom built using the 45 nm process. AMD's new platform, codenamed "Dragon", utilized the new Phenom II processor, and an ATI R770 GPU from the R700 GPU family, as well as a 790 GX/FX chipset from the AMD 700 chipset series. The Phenom II came in dual-core, triple-core and quad-core variants, all using the same die, with cores disabled for the triple-core and dual-core versions. The Phenom II resolved issues that the original Phenom had, including a low clock speed, a small L3 cache, and a Cool'n'Quiet bug that decreased performance. The Phenom II cost less but was not performance-competitive with Intel's mid-to-high-range Core 2 Quads. The Phenom II also enhanced its predecessor's memory controller, allowing it to use DDR3 in a new native socket AM3, while maintaining backward compatibility with AM2+, the socket used for the Phenom, and allowing the use of the DDR2 memory that was used with the platform. In April 2010, AMD released a new Phenom II Hexa-core (6-core) processor codenamed "Thuban". This was a totally new die based on the hexa-core "Istanbul" Opteron processor. It included AMD's "turbo core" technology, which allows the processor to automatically switch from 6 cores to 3 faster cores when more pure speed is needed. The Magny Cours and Lisbon server parts were released in 2010. The Magny Cours part came in 8 to 12 cores and the Lisbon part in 4 and 6 core parts. Magny Cours is focused on performance while the Lisbon part is focused on high performance per watt. Magny Cours is an MCM (multi-chip module) with two hexa-core "Istanbul" Opteron parts. This will use a new G34 socket for dual and quad-socket processors and thus will be marketed as Opteron 61xx series processors. Lisbon uses C32 socket certified for dual-socket use or single socket use only and thus will be marketed as Opteron 41xx processors. Both will be built on a 45 nm SOI process. Fusion becomes the AMD APU Following AMD's 2006 acquisition of Canadian graphics company ATI Technologies, an initiative codenamed Fusion was announced to integrate a CPU and GPU together on some of AMD's microprocessors, including a built in PCI Express link to accommodate separate PCI Express peripherals, eliminating the northbridge chip from the motherboard. The initiative intended to move some of the processing originally done on the CPU (e.g. floating-point unit operations) to the GPU, which is better optimized for some calculations. The Fusion was later renamed the AMD APU (Accelerated Processing Unit). Llano was AMD's first APU built for laptops. Llano was the second APU released, targeted at the mainstream market. It incorporated a CPU and GPU on the same die, as well as northbridge functions, and used "Socket FM1" with DDR3 memory. The CPU part of the processor was based on the Phenom II "Deneb" processor. AMD suffered an unexpected decrease in revenue based on production problems for the Llano. More AMD APUs for laptops running Windows 7 and Windows 8 OS are being used commonly. These include AMD's price-point APUs, the E1 and E2, and their mainstream competitors with Intel's core i-series: The Vision A- series, the A standing for accelerated. These range from the lower-performance A4 chipset to the A6, A8, and A10. These all incorporate Next-generation Radeon graphics cards, with the A4 utilizing the base Radeon HD chip and the rest using a Radeon R4 graphics card, with the exception of the highest-model A10 (A10-7300) which uses an R6 graphics card. New microarchitectures High-power, high-performance Bulldozer cores Bulldozer was AMD's microarchitecture codename for server and desktop AMD FX processors, first released on October 12, 2011. This family 15h microarchitecture is the successor to the family 10h (K10) microarchitecture design. Bulldozer was a clean-sheet design, not a development of earlier processors. The core was specifically

not be used on the same motherboards as Intel's, due to licensing issues surrounding Intel's Slot 1 connector, and instead used a Slot A connector, referenced to the Alpha processor bus. The Duron was a lower-cost and limited version of the Athlon (64KB instead of 256KB L2 cache) in a 462-pin socketed PGA (socket A) or soldered directly onto the motherboard. Sempron was released as a lower-cost Athlon XP, replacing Duron in the socket A PGA era. It has since been migrated upward to all new sockets, up to AM3. On October 9, 2001, the Athlon XP was released. On February 10, 2003, the Athlon XP with 512KB L2 Cache was released. Athlon 64, Opteron and Phenom The K8 was a major revision of the K7 architecture, with the most notable features being the addition of a 64-bit extension to the x86 instruction set (called x86-64, AMD64, or x64), the incorporation of an on-chip memory controller, and the implementation of an extremely high performance point-to-point interconnect called HyperTransport, as part of the Direct Connect Architecture. The technology was initially launched as the Opteron server-oriented processor on April 22, 2003. Shortly thereafter, it was incorporated into a product for desktop PCs, branded Athlon 64. On April 21, 2005, AMD released the first dual core Opteron, an x86-based server CPU. A month later, it released the Athlon 64 X2, the first desktop-based dual core processor family. In May 2007, AMD abandoned the string "64" in its dual-core desktop product branding, becoming Athlon X2, downplaying the significance of 64-bit computing in its processors. Further updates involved improvements to the microarchitecture, and a shift of the target market from mainstream desktop systems to value dual-core desktop systems. In 2008, AMD started to release dual-core Sempron processors exclusively in China, branded as the Sempron 2000 series, with lower HyperTransport speed and smaller L2 cache. AMD completed its dual-core product portfolio for each market segment. In September 2007, AMD released the first server Opteron K10 processors, followed in November by the Phenom processor for desktop. K10 processors came in dual-core, triple-core, and quad-core versions, with all cores on a single die. AMD released a new platform codenamed "Spider", which utilized the new Phenom processor, as well as an R770 GPU and a 790 GX/FX chipset from the AMD 700 chipset series. However, AMD built the Spider at 65nm, which was uncompetitive with Intel's smaller and more power-efficient 45nm. In January 2009, AMD released a new processor line dubbed Phenom II, a refresh of the original Phenom built using the 45 nm process. AMD's new platform, codenamed "Dragon", utilized the new Phenom II processor, and an ATI R770 GPU from the R700 GPU family, as well as a 790 GX/FX chipset from the AMD 700 chipset series. The Phenom II came in dual-core, triple-core and quad-core variants, all using the same die, with cores disabled for the triple-core and dual-core versions. The Phenom II resolved issues that the original Phenom had, including a low clock speed, a small L3 cache, and a Cool'n'Quiet bug that decreased performance. The Phenom II cost less but was not performance-competitive with Intel's mid-to-high-range Core 2 Quads. The Phenom II also enhanced its predecessor's memory controller, allowing it to use DDR3 in a new native socket AM3, while maintaining backward compatibility with AM2+, the socket used for the Phenom, and allowing the use of the DDR2 memory that was used with the platform. In April 2010, AMD released a new Phenom II Hexa-core (6-core) processor codenamed "Thuban". This was a totally new die based on the hexa-core "Istanbul" Opteron processor. It included AMD's "turbo core" technology, which allows the processor to automatically switch from 6 cores to 3 faster cores when more pure speed is needed. The Magny Cours and Lisbon server parts were released in 2010. The Magny Cours part came in 8 to 12 cores and the Lisbon part in 4 and 6 core parts. Magny Cours is focused on performance while the Lisbon part is focused on high performance per watt. Magny Cours is an MCM (multi-chip module) with two hexa-core "Istanbul" Opteron parts. This will use a new G34 socket for dual and quad-socket processors and thus will be marketed as Opteron 61xx series processors. Lisbon uses C32 socket certified for dual-socket use or single socket use only and thus will be marketed as Opteron 41xx processors. Both will be built on a 45 nm SOI process. Fusion becomes the AMD APU Following AMD's 2006 acquisition of Canadian graphics company ATI Technologies, an initiative codenamed Fusion was announced to integrate a CPU and GPU together on some of AMD's microprocessors, including a built in PCI Express link to accommodate separate PCI Express peripherals, eliminating the northbridge chip from the motherboard. The initiative intended to move some of the processing originally done on the CPU (e.g. floating-point unit operations) to the GPU, which is better optimized for some calculations. The Fusion was later renamed the AMD APU (Accelerated Processing Unit). Llano was AMD's first APU built for laptops. Llano was the second APU released, targeted at the mainstream market. It incorporated a CPU and GPU on the same die, as well as northbridge functions, and used "Socket FM1" with DDR3 memory. The CPU part of the processor was based on the Phenom II "Deneb" processor. AMD suffered an unexpected decrease in revenue based on production problems for the Llano. More AMD APUs for laptops running Windows 7 and Windows 8 OS are being used commonly. These include AMD's price-point APUs, the E1 and E2, and their mainstream competitors with Intel's core i-series: The Vision A- series, the A standing for accelerated. These range from the lower-performance A4 chipset to the A6, A8, and A10. These all incorporate Next-generation Radeon graphics cards, with the A4 utilizing the base Radeon HD chip and the rest using a Radeon R4 graphics card, with the exception of the highest-model A10 (A10-7300) which uses an R6 graphics card. New microarchitectures High-power, high-performance Bulldozer cores Bulldozer was AMD's microarchitecture codename for server and desktop AMD FX processors, first released on October 12, 2011. This family 15h microarchitecture is the successor to the family 10h (K10) microarchitecture design. Bulldozer was a clean-sheet design, not a development of earlier processors. The core was specifically aimed at 10–125 W TDP computing products. AMD claimed dramatic performance-per-watt efficiency improvements in high-performance computing (HPC) applications with Bulldozer cores. While hopes were high that Bulldozer would bring AMD to be performance-competitive with Intel once more, most benchmarks were disappointing. In some cases the new Bulldozer products were slower than the K10 models they were built to replace. The Piledriver microarchitecture was the 2012 successor to Bulldozer, increasing clock speeds and performance relative to its predecessor. Piledriver would be released in AMD FX, APU, and Opteron product lines. Piledriver was subsequently followed by the Steamroller microarchitecture in 2013. Used exclusively in AMD's APUs, Steamroller focused on greater parallelism. In 2015, the Excavator microarchitecture replaced Piledriver. Expected to be the last microarchitecture of the Bulldozer series, Excavator focused on improved power efficiency. Low-power Cat cores The Bobcat microarchitecture was revealed during a speech from AMD executive vice-president Henri Richard in Computex 2007 and was put into production during the first quarter of 2011. Based on the difficulty competing in the x86 market with a single core optimized for the 10–100 W range, AMD had developed a simpler core with a target range of 1–10 watts. In addition, it was believed that the core could migrate into the hand-held space if the power consumption can be reduced to less than 1 W. Jaguar is a microarchitecture codename for Bobcat's successor, released in 2013, that is used in various APUs from AMD aimed at the low-power/low-cost market. Jaguar and its derivates would go on to be used in the custom APUs of the PlayStation 4, Xbox One, PlayStation 4 Pro, Xbox One S, and Xbox One X. Jaguar would be later followed by the Puma microarchitecture in 2014. ARM architecture-based designs In 2012, AMD announced it was working on an ARM architecture products, both as a semi-custom product and server product. The initial server product was announced as the Opteron A1100 in 2014, and 8-core Cortex-A57 based ARMv8-A SoC, and was expected to be followed by an APU incorporating a Graphic Core Next GPU. However, the Opteron A1100 was not released until 2016, with the delay attributed to adding software support. The A1100 was also criticized for not having support from major vendors upon its release. In 2014, AMD also announced the K12 custom core for release in 2016. While being ARMv8-A instruction set architecture compliant, the K12 is expected to be entirely custom designed targeting server, embedded, and semi-custom markets. While ARM architecture development continued, products based on K12 were subsequently delayed with no release planned, in preference to the development of AMD's x86 based Zen microarchitecture. Zen based CPUs and APUs Zen is a new architecture for x86-64 based Ryzen series CPUs and APUs, introduced in 2017 by AMD and built from the ground up by a team led by Jim Keller, beginning with his arrival in 2012, and taping out before his departure in September 2015. One of AMD's primary goals with Zen was an IPC increase of at least 40%, however in February 2017 AMD announced that they had actually achieved a 52% increase. Processors made on the Zen architecture are built on the 14 nm FinFET node and have a renewed focus on single-core performance and HSA compatibility. Previous processors from AMD were either built in the 32 nm process ("Bulldozer" and "Piledriver" CPUs) or the 28 nm process ("Steamroller" and "Excavator" APUs). Because of this, Zen is much more energy efficient. The Zen architecture is the first to encompass CPUs and APUs from AMD built for a single socket (Socket AM4). Also new for this architecture is the implementation of simultaneous multithreading (SMT) technology, something Intel has had for years on some of their processors with their proprietary Hyper-Threading implementation of SMT. This is a departure from the "Clustered MultiThreading" design introduced with the Bulldozer architecture. Zen also has support for DDR4 memory. AMD released the Zen-based high-end Ryzen 7 "Summit Ridge" series CPUs on March 2, 2017, mid-range Ryzen 5 series CPUs on April 11, 2017, and entry level Ryzen 3 series CPUs on July 27, 2017. AMD later released the Epyc line of Zen derived server processors for 1P and 2P systems. In October 2017, AMD released Zen based APUs as Ryzen Mobile, incorporating Vega graphics cores. In January 2018 AMD has announced their new lineup plans, with Ryzen 2. AMD launched CPUs with the 12nm Zen+ microarchitecture in April 2018, following up with the 7nm Zen 2 microarchitecture in June 2019, including an update to the Epyc line with new processors using the Zen 2 microarchitecture in August 2019, and Zen 3 slated for release in Q3 2020. As of 2019, AMD's Ryzen processors were reported to outsell Intel's consumer desktop processors. At CES 2020 AMD announced their Ryzen Mobile 4000, as the first 7 nm x86 mobile processor, the first 7 nm 8-core (also 16-thread) high performance mobile processor, and the first 8-core (also 16-thread) processor for ultrathin laptops. This generation is still based on the Zen 2 architecture. In October 2020 AMD announced their Zen 3 CPU. On PassMark's Single thread performance test the Ryzen 5 5600x bested all other CPUs besides the Ryzen 9 5950X. Both the PlayStation 5 and the Xbox Series X|S use chips based on the Zen 2 microarchitecture, with proprietary tweaks and different configurations in each system's implementation than AMD sells in its own commercially available APUs. Graphics products and GPUs ATI prior to AMD acquisition Radeon within AMD In 2008, the ATI division of AMD released the TeraScale microarchitecture implementing a unified shader model. This design replaced the previous fixed-function hardware of previous graphics cards with multipurpose, programmable shaders. Initially released as part of the GPU for the Xbox 360, this technology would go on to be used in Radeon branded HD 2000 parts. Three generations of TeraScale would be designed and used in parts from 2008 to 2014. Combined GPU and CPU divisions In a 2009 restructuring, AMD merged the CPU and GPU divisions to support the company's APUs, which fused both graphics and general purpose processing. In 2011, AMD released the successor to TeraScale, Graphics Core Next (GCN). This new microarchitecture emphasized GPGPU compute capability in addition to graphics processing, with a particular aim of supporting heterogeneous computing on AMD's APUs. GCN's reduced instruction set ISA allowed for significantly increased compute capability over TeraScale's very long instruction word ISA. Since GCN's introduction with the HD 7970, five generations of the GCN architecture have been produced from 2008 through at least 2017. Radeon Technologies Group In September 2015, AMD separated the graphics technology division of the company into an independent internal unit called the Radeon Technologies Group (RTG) headed by Raja Koduri. This gave the graphics division of AMD autonomy in product design and marketing. The RTG then went on to create and release the Polaris and Vega microarchitectures released in 2016 and 2017, respectively. In particular the Vega, or 5th generation GCN, microarchitecture includes a number of major revisions to improve performance and compute capabilities. In November 2017, Raja Koduri left RTG and CEO and President Lisa Su took his position. In January 2018, it was reported that two industry veterans joined RTG, namely Mike Rayfield as senior vice president and general manager of RTG, and David Wang as senior vice president of engineering for RTG. In January 2020, AMD announced that its second generation RDNA graphics architecture was in development, with the aim of competing with the Nvidia RTX graphics products for performance leadership. In October 2020, AMD announced their new RX 6000 series series GPUs, their first high end product based on RDNA2 and capable of handling ray-tracing natively, aiming to challenge Nvidia's RTX 3000 GPUs. Semi-custom and game console products In 2012, AMD's then CEO Rory Read began a program to offer semi-custom designs. Rather than AMD simply designing and offering a single product, potential customers could work with AMD to design a custom chip based on AMD's intellectual property. Customers pay a non-recurring engineering fee for design and development, and a purchase price for the resulting semi-custom products. In particular, AMD noted their unique position of offering both x86 and graphics intellectual property. These semi-custom designs would have design wins as the APUs in the PlayStation 4 and Xbox One and the subsequent PlayStation 4 Pro, Xbox One S, Xbox One X, Xbox Series and PlayStation 5. Financially, these semi-custom products would represent a majority of the company's revenue in 2016. In November 2017, AMD and Intel announced that Intel would market a product combining in a single package an Intel Core CPU, a semi-custom AMD Radeon GPU, and HBM2 memory. Other hardware AMD motherboard chipsets Before the launch of Athlon 64 processors in 2003, AMD designed chipsets for their processors spanning the K6 and K7 processor generations. The chipsets include the AMD-640, AMD-751, and the AMD-761 chipsets. The situation changed in 2003 with the release of Athlon 64 processors, and AMD chose not to further design its own chipsets for its desktop processors while opening the desktop platform to allow other firms to design chipsets. This was the "Open Platform Management Architecture" with ATI, VIA and SiS developing their own chipset for Athlon 64 processors and later Athlon 64 X2 and Athlon 64 FX processors, including the Quad FX platform chipset from Nvidia. The initiative went further with the release of Opteron server processors as AMD stopped the design of server chipsets in 2004 after releasing the AMD-8111 chipset, and again opened the server platform for firms to develop chipsets for Opteron processors. As of today, Nvidia and Broadcom are the sole designing firms of server chipsets for Opteron processors. As the company completed the acquisition of ATI Technologies in 2006, the firm gained the ATI design team for chipsets which previously designed the Radeon Xpress 200 and the Radeon Xpress 3200 chipsets. AMD then renamed the chipsets for AMD processors under AMD branding (for instance, the CrossFire Xpress 3200 chipset was renamed as AMD 580X CrossFire chipset). In February 2007, AMD announced the first AMD-branded chipset since 2004 with the release of the AMD 690G chipset (previously under the development codename RS690), targeted at mainstream IGP computing. It was the industry's first to implement a HDMI 1.2 port on motherboards, shipping for more than a million units. While ATI had aimed at releasing an Intel IGP chipset, the plan was scrapped and the inventories of Radeon Xpress 1250 (codenamed RS600, sold under ATI brand) was sold to two OEMs, Abit and ASRock. Although AMD stated the firm would still produce Intel chipsets, Intel had not granted the license of FSB to ATI. On November 15, 2007, AMD announced a new chipset series portfolio, the AMD 7-Series chipsets, covering from the enthusiast multi-graphics segment to the value IGP segment, to replace the AMD 480/570/580 chipsets and AMD 690 series chipsets, marking AMD's first enthusiast multi-graphics chipset. Discrete graphics chipsets were launched on November 15, 2007, as part of the codenamed Spider desktop platform, and IGP chipsets were launched at a later time in spring 2008 as part of the codenamed Cartwheel platform. AMD returned to the server chipsets market with the AMD 800S series server chipsets. It includes support for up to six SATA 6.0 Gbit/s ports, the C6 power state, which is featured in Fusion processors and AHCI 1.2 with SATA FIS–based switching support. This is a chipset family supporting Phenom processors and Quad FX enthusiast platform (890FX), IGP (890GX). With the advent of AMD's APUs in 2011, traditional northbridge features such as the connection to graphics and the PCI Express controller were incorporated into the APU die. Accordingly, APUs were connected to a single chip chipset, renamed the Fusion Controller Hub (FCH), which primarily provided southbridge functionality. AMD released new chipsets in 2017 to support the release of their new Ryzen products. As the Zen microarchitecture already includes much of the northbridge connectivity, the AM4 based chipsets primarily varied in the number of additional PCI Express lanes, USB connections, and SATA connections available. These AM4 chipsets were designed in conjunction with ASMedia. Embedded products Embedded CPUs In February 2002, AMD acquired Alchemy Semiconductor for its Alchemy line of MIPS processors for the hand-held and portable media player markets. On June 13, 2006, AMD officially announced that the line was to be transferred to Raza Microelectronics, Inc., a designer of MIPS processors for embedded applications. In August 2003, AMD also purchased the Geode business which was originally the Cyrix MediaGX from National Semiconductor to augment its existing line of embedded x86 processor products. During the second quarter of 2004, it launched new low-power Geode NX processors based on the K7 Thoroughbred architecture with speeds of fanless processors and , and processor with fan, of TDP 25 W. This technology is used in a variety of embedded systems (Casino slot machines and customer kiosks for instance), several UMPC designs in Asia markets, as well as the OLPC XO-1 computer, an inexpensive laptop computer intended to be distributed to children in developing countries around the world. The Geode LX processor was announced in 2005 and is said will continue to be available through 2015. AMD has also introduced 64-bit processors into its embedded product line starting with the AMD Opteron processor. Leveraging the high throughput enabled through HyperTransport and the Direct Connect Architecture these server-class

Luther, like our Albert of blessed memory ... but as anyone can see, the situation has become worse." Dürer may even have contributed to the Nuremberg City Council's mandating Lutheran sermons and services in March 1525. Notably, Dürer had contacts with various reformers, such as Zwingli, Andreas Karlstadt, Melanchthon, Erasmus and Cornelius Grapheus from whom Dürer received Luther's Babylonian Captivity in 1520. Yet Erasmus and C. Grapheus are better said to be Catholic change agents. Also, from 1525, "the year that saw the peak and collapse of the Peasants' War, the artist can be seen to distance himself somewhat from the [Lutheran] movement..." Dürer's later works have also been claimed to show Protestant sympathies. His 1523 The Last Supper woodcut has often been understood to have an evangelical theme, focusing as it does on Christ espousing the Gospel, as well as the inclusion of the Eucharistic cup, an expression of Protestant utraquism, although this interpretation has been questioned. The delaying of the engraving of St Philip, completed in 1523 but not distributed until 1526, may have been due to Dürer's uneasiness with images of saints; even if Dürer was not an iconoclast, in his last years he evaluated and questioned the role of art in religion. Legacy and influence Dürer exerted a huge influence on the artists of succeeding generations, especially in printmaking, the medium through which his contemporaries mostly experienced his art, as his paintings were predominantly in private collections located in only a few cities. His success in spreading his reputation across Europe through prints was undoubtedly an inspiration for major artists such as Raphael, Titian, and Parmigianino, all of whom collaborated with printmakers to promote and distribute their work. His engravings seem to have had an intimidating effect upon his German successors; the "Little Masters" who attempted few large engravings but continued Dürer's themes in small, rather cramped compositions. Lucas van Leyden was the only Northern European engraver to successfully continue to produce large engravings in the first third of the 16th century. The generation of Italian engravers who trained in the shadow of Dürer all either directly copied parts of his landscape backgrounds (Giulio Campagnola, Giovanni Battista Palumba, Benedetto Montagna and Cristofano Robetta), or whole prints (Marcantonio Raimondi and Agostino Veneziano). However, Dürer's influence became less dominant after 1515, when Marcantonio perfected his new engraving style, which in turn travelled over the Alps to also dominate Northern engraving. In painting, Dürer had relatively little influence in Italy, where probably only his altarpiece in Venice was seen, and his German successors were less effective in blending German and Italian styles. His intense and self-dramatizing self-portraits have continued to have a strong influence up to the present, especially on painters in the 19th and 20th century who desired a more dramatic portrait style. Dürer has never fallen from critical favour, and there have been significant revivals of interest in his works in Germany in the Dürer Renaissance of about 1570 to 1630, in the early nineteenth century, and in German nationalism from 1870 to 1945. The Lutheran Church commemorates Dürer annually on 6 April, along with Michelangelo, Lucas Cranach the Elder and Hans Burgkmair. The liturgical calendar of the Episcopal Church (United States) remembers him, Cranach and Matthias Grünewald on 5 August. Theoretical works In all his theoretical works, in order to communicate his theories in the German language rather than in Latin, Dürer used graphic expressions based on a vernacular, craftsmen's language. For example, "Schneckenlinie" ("snail-line") was his term for a spiral form. Thus, Dürer contributed to the expansion in German prose which Luther had begun with his translation of the Bible. Four Books on Measurement Dürer's work on geometry is called the Four Books on Measurement (Underweysung der Messung mit dem Zirckel und Richtscheyt or Instructions for Measuring with Compass and Ruler). The first book focuses on linear geometry. Dürer's geometric constructions include helices, conchoids and epicycloids. He also draws on Apollonius, and Johannes Werner's 'Libellus super viginti duobus elementis conicis' of 1522. The second book moves onto two-dimensional geometry, i.e. the construction of regular polygons. Here Dürer favours the methods of Ptolemy over Euclid. The third book applies these principles of geometry to architecture, engineering and typography. In architecture Dürer cites Vitruvius but elaborates his own classical designs and columns. In typography, Dürer depicts the geometric construction of the Latin alphabet, relying on Italian precedent. However, his construction of the Gothic alphabet is based upon an entirely different modular system. The fourth book completes the progression of the first and second by moving to three-dimensional forms and the construction of polyhedra. Here Dürer discusses the five Platonic solids, as well as seven Archimedean semi-regular solids, as well as several of his own invention. In all these, Dürer shows the objects as nets. Finally, Dürer discusses the Delian Problem and moves on to the 'construzione legittima', a method of depicting a cube in two dimensions through linear perspective. He is thought to be the first to describe a visualization technique used in modern computers, ray tracing. It was in Bologna that Dürer was taught (possibly by Luca Pacioli or Bramante) the principles of linear perspective, and evidently became familiar with the 'costruzione legittima' in a written description of these principles found only, at this time, in the unpublished treatise of Piero della Francesca. He was also familiar with the 'abbreviated construction' as described by Alberti and the geometrical construction of shadows, a technique of Leonardo da Vinci. Although Dürer made no innovations in these areas, he is notable as the first Northern European to treat matters of visual representation in a scientific way, and with understanding of Euclidean principles. In addition to these geometrical constructions, Dürer discusses in this last book of Underweysung der Messung an assortment of mechanisms for drawing in perspective from models and provides woodcut illustrations of these methods that are often reproduced in discussions of perspective. Four Books on Human Proportion Dürer's work on human proportions is called the Four Books on Human Proportion (Vier Bücher von Menschlicher Proportion) of 1528. The first book was mainly composed by 1512/13 and completed by 1523, showing five differently constructed types of both male and female figures, all parts of the body expressed in fractions of the total height. Dürer based these constructions on both Vitruvius and empirical observations of "two to three hundred living persons", in his own words. The second book includes eight further types, broken down not into fractions but an Albertian system, which Dürer probably learned from Francesco di Giorgio's 'De harmonica mundi totius' of 1525. In the third book, Dürer gives principles by which the proportions of the figures can be modified, including the mathematical simulation of convex and concave mirrors; here Dürer also deals with human physiognomy. The fourth book is devoted to the theory of movement. Appended to the last book, however, is a self-contained essay on aesthetics, which Dürer worked on between 1512 and 1528, and it is here that we learn of his theories concerning 'ideal beauty'. Dürer rejected Alberti's concept of an objective beauty, proposing a relativist notion of beauty based on variety. Nonetheless, Dürer still believed that truth was hidden within nature, and that there were rules which ordered beauty, even though he found it difficult to define the criteria for such a code. In 1512/13 his three criteria were function ('Nutz'), naïve approval ('Wohlgefallen') and the happy medium ('Mittelmass'). However, unlike Alberti and Leonardo, Dürer was most troubled by understanding not just the abstract notions of beauty but also as to how an artist can create beautiful images. Between 1512 and the final draft in 1528, Dürer's belief developed from an understanding of human creativity as spontaneous or inspired to a concept of 'selective inward synthesis'. In other words, that an artist builds on a wealth of visual experiences in order to imagine beautiful things. Dürer's belief in the abilities of a single artist over inspiration prompted him to assert that "one man may sketch something with his pen on half a sheet of paper in one day, or may cut it into a tiny piece of wood with his little iron, and it turns out to be better and more artistic than another's work at which its author labours with the utmost diligence for a whole year". Book on Fortification In 1527, Dürer also published Various Lessons on the Fortification of Cities, Castles, and Localities (Etliche Underricht zu Befestigung der Stett, Schloss und Flecken). It was printed in Nuremberg, probably by Hieronymus Andreae and reprinted in 1603 by Johan Janssenn in Arnhem. In 1535 it was also translated into Latin as On Cities, Forts, and Castles, Designed and Strengthened by Several Manners: Presented for the Most Necessary Accommodation of War (De vrbibus, arcibus, castellisque condendis, ac muniendis rationes aliquot : praesenti bellorum necessitati accommodatissimae), published by Christian Wechel (Wecheli/Wechelus) in Paris. The work is less proscriptively theoretical than his other works, and was soon overshadowed by the Italian theory of polygonal fortification (the trace italienne – see Bastion fort), though his designs seem to have had some influence in the eastern German lands and up into the Baltic States. Fencing Dürer created many sketches and woodcuts of soldiers and knights over the course of his life. His most significant martial works, however, were made in 1512 as part of his efforts to secure the patronage of Maximilian I. Using existing manuscripts from the Nuremberg Group as his reference, his workshop produced the extensive Οπλοδιδασκαλια sive Armorvm Tractandorvm Meditatio Alberti Dvreri ("Weapon Training, or Albrecht Dürer's Meditation on the Handling of Weapons", MS 26-232). Another manuscript based on the Nuremberg texts as well as one of Hans Talhoffer's works, the untitled Berlin Picture Book (Libr.Pict.A.83), is also thought to have originated in his workshop around this time. These sketches and watercolors show the same careful attention to detail and human proportion as Dürer's other work, and his illustrations of grappling, long sword, dagger, and messer are among the highest-quality in any fencing manual. Gallery List of works List of paintings by Albrecht Dürer List of engravings by Albrecht Dürer List of woodcuts by Albrecht Dürer References Notes Citations Sources Bartrum, Giulia. Albrecht Dürer and his Legacy. London: British Museum Press, 2002. Brand Philip, Lotte; Anzelewsky, Fedja. "The Portrait Diptych of Dürer's parents". Simiolus: Netherlands Quarterly for the History of Art, Volume 10, No. 1, 1978–79. 5–18 Brion, Marcel. Dürer. London: Thames and Hudson, 1960 Harbison, Craig. "Dürer and the Reformation: The Problem of the Re-dating of the St. Philip Engraving". The Art Bulletin, Vol. 58, No. 3, 368–373. September 1976 Koerner, Joseph Leo. The Moment of Self-Portraiture in German Renaissance Art. Chicago/London: University of Chicago Press, 1993. Landau David; Parshall, Peter. The Renaissance Print. Yale, 1996. Panofsky, Erwin. The Life and Art of Albrecht Dürer. NJ: Princeton, 1945. Price, David Hotchkiss. Albrecht Dürer's Renaissance: Humanism, Reformation and the Art of Faith. Michigan, 2003. . Strauss, Walter L. (ed.). The Complete Engravings, Etchings and Drypoints of Albrecht Durer. Mineola NY: Dover Publications, 1973. Borchert, Till-Holger. Van Eyck to Dürer: The Influence of Early Netherlandish painting on European Art, 1430–1530. London: Thames & Hudson, 2011. Wolf, Norbert. Albrecht Dürer. Taschen, 2010. Hoffmann, Rainer. Im Paradies - Adam und Eva und der Sündenfall - Albrecht Dürers Darstellungen, Böhlau-Verlag, 2021, ISBN 9783412523852 Further reading Campbell Hutchison, Jane. Albrecht Dürer: A Biography. Princeton University Press, 1990. Demele, Christine. Dürers Nacktheit – Das Weimarer Selbstbildnis. Rhema Verlag, Münster 2012, Dürer, Albrecht (translated by R.T. Nichol from the Latin text), Of the Just Shaping of Letters, Dover Publications. Hart, Vaughan. 'Navel Gazing. On Albrecht Dürer's Adam and Eve (1504)', The International Journal of Arts Theory and History,

met Bernard van Orley, Jan Provoost, Gerard Horenbout, Jean Mone, Joachim Patinir and Tommaso Vincidor, though he did not, it seems, meet Quentin Matsys. Having secured his pension, Dürer returned home in July 1521, having caught an undetermined illness, which afflicted him for the rest of his life, and greatly reduced his rate of work. Final years, Nuremberg (1521–1528) On his return to Nuremberg, Dürer worked on a number of grand projects with religious themes, including a crucifixion scene and a Sacra conversazione, though neither was completed. This may have been due in part to his declining health, but perhaps also because of the time he gave to the preparation of his theoretical works on geometry and perspective, the proportions of men and horses, and fortification. However, one consequence of this shift in emphasis was that during the last years of his life, Dürer produced comparatively little as an artist. In painting, there was only a portrait of Hieronymus Holtzschuher, a Madonna and Child (1526), Salvator Mundi (1526), and two panels showing St. John with St. Peter in background and St. Paul with St. Mark in the background. This last great work, the Four Apostles, was given by Dürer to the City of Nuremberg—although he was given 100 guilders in return. As for engravings, Dürer's work was restricted to portraits and illustrations for his treatise. The portraits include Cardinal-Elector Albert of Mainz; Frederick the Wise, elector of Saxony; the humanist scholar Willibald Pirckheimer; Philipp Melanchthon, and Erasmus of Rotterdam. For those of the Cardinal, Melanchthon, and Dürer's final major work, a drawn portrait of the Nuremberg patrician Ulrich Starck, Dürer depicted the sitters in profile. Despite complaining of his lack of a formal classical education, Dürer was greatly interested in intellectual matters and learned much from his boyhood friend Willibald Pirckheimer, whom he no doubt consulted on the content of many of his images. He also derived great satisfaction from his friendships and correspondence with Erasmus and other scholars. Dürer succeeded in producing two books during his lifetime. "The Four Books on Measurement" were published at Nuremberg in 1525 and was the first book for adults on mathematics in German, as well as being cited later by Galileo and Kepler. The other, a work on city fortifications, was published in 1527. "The Four Books on Human Proportion" were published posthumously, shortly after his death in 1528. Dürer died in Nuremberg at the age of 56, leaving an estate valued at 6,874 florins – a considerable sum. He is buried in the Johannisfriedhof cemetery. His large house (purchased in 1509 from the heirs of the astronomer Bernhard Walther), where his workshop was located and where his widow lived until her death in 1539, remains a prominent Nuremberg landmark. Dürer and the Reformation Dürer's writings suggest that he may have been sympathetic to Luther's ideas, though it is unclear if he ever left the Catholic Church. Dürer wrote of his desire to draw Luther in his diary in 1520: "And God help me that I may go to Dr. Martin Luther; thus I intend to make a portrait of him with great care and engrave him on a copper plate to create a lasting memorial of the Christian man who helped me overcome so many difficulties." In a letter to Nicholas Kratzer in 1524, Dürer wrote, "because of our Christian faith we have to stand in scorn and danger, for we are reviled and called heretics". Most tellingly, Pirckheimer wrote in a letter to Johann Tscherte in 1530: "I confess that in the beginning I believed in Luther, like our Albert of blessed memory ... but as anyone can see, the situation has become worse." Dürer may even have contributed to the Nuremberg City Council's mandating Lutheran sermons and services in March 1525. Notably, Dürer had contacts with various reformers, such as Zwingli, Andreas Karlstadt, Melanchthon, Erasmus and Cornelius Grapheus from whom Dürer received Luther's Babylonian Captivity in 1520. Yet Erasmus and C. Grapheus are better said to be Catholic change agents. Also, from 1525, "the year that saw the peak and collapse of the Peasants' War, the artist can be seen to distance himself somewhat from the [Lutheran] movement..." Dürer's later works have also been claimed to show Protestant sympathies. His 1523 The Last Supper woodcut has often been understood to have an evangelical theme, focusing as it does on Christ espousing the Gospel, as well as the inclusion of the Eucharistic cup, an expression of Protestant utraquism, although this interpretation has been questioned. The delaying of the engraving of St Philip, completed in 1523 but not distributed until 1526, may have been due to Dürer's uneasiness with images of saints; even if Dürer was not an iconoclast, in his last years he evaluated and questioned the role of art in religion. Legacy and influence Dürer exerted a huge influence on the artists of succeeding generations, especially in printmaking, the medium through which his contemporaries mostly experienced his art, as his paintings were predominantly in private collections located in only a few cities. His success in spreading his reputation across Europe through prints was undoubtedly an inspiration for major artists such as Raphael, Titian, and Parmigianino, all of whom collaborated with printmakers to promote and distribute their work. His engravings seem to have had an intimidating effect upon his German successors; the "Little Masters" who attempted few large engravings but continued Dürer's themes in small, rather cramped compositions. Lucas van Leyden was the only Northern European engraver to successfully continue to produce large engravings in the first third of the 16th century. The generation of Italian engravers who trained in the shadow of Dürer all either directly copied parts of his landscape backgrounds (Giulio Campagnola, Giovanni Battista Palumba, Benedetto Montagna and Cristofano Robetta), or whole prints (Marcantonio Raimondi and Agostino Veneziano). However, Dürer's influence became less dominant after 1515, when Marcantonio perfected his new engraving style, which in turn travelled over the Alps to also dominate Northern engraving. In painting, Dürer had relatively little influence in Italy, where probably only his altarpiece in Venice was seen, and his German successors were less effective in blending German and Italian styles. His intense and self-dramatizing self-portraits have continued to have a strong influence up to the present, especially on painters in the 19th and 20th century who desired a more dramatic portrait style. Dürer has never fallen from critical favour, and there have been significant revivals of interest in his works in Germany in the Dürer Renaissance of about 1570 to 1630, in the early nineteenth century, and in German nationalism from 1870 to 1945. The Lutheran Church commemorates Dürer annually on 6 April, along with Michelangelo, Lucas Cranach the Elder and Hans Burgkmair. The liturgical calendar of the Episcopal Church (United States) remembers him, Cranach and Matthias Grünewald on 5 August. Theoretical works In all his theoretical works, in order to communicate his theories in the German language rather than in Latin, Dürer used graphic expressions based on a vernacular, craftsmen's language. For example, "Schneckenlinie" ("snail-line") was his term for a spiral form. Thus, Dürer contributed to the expansion in German prose which Luther had begun with his translation of the Bible. Four Books on Measurement Dürer's work on geometry is called the Four Books on Measurement (Underweysung der Messung mit dem Zirckel und Richtscheyt or Instructions for Measuring with Compass and Ruler). The first book focuses on linear geometry. Dürer's geometric constructions include helices, conchoids and epicycloids. He also draws on Apollonius, and Johannes Werner's 'Libellus super viginti duobus elementis conicis' of 1522. The second book moves onto two-dimensional geometry, i.e. the construction of regular polygons. Here Dürer favours the methods of Ptolemy over Euclid. The third book applies these principles of geometry to architecture, engineering and typography. In architecture Dürer cites Vitruvius but elaborates his own classical designs and columns. In typography, Dürer depicts the geometric construction of the Latin alphabet, relying on Italian precedent. However, his construction of the Gothic alphabet is based upon an entirely different modular system. The fourth book completes the progression of the first and second by moving to three-dimensional forms and the construction of polyhedra. Here Dürer discusses the five Platonic solids, as well as seven Archimedean semi-regular solids, as well as several of his own invention. In all these, Dürer shows the objects as nets. Finally, Dürer discusses the Delian Problem and moves on to the 'construzione legittima', a method of depicting a cube in two dimensions through linear perspective. He is thought to be the first to describe a visualization technique used in modern computers, ray tracing. It was in Bologna that Dürer was taught (possibly by Luca Pacioli or Bramante) the principles of linear perspective, and evidently became familiar with the 'costruzione legittima' in a written description of these principles found only, at this time, in the unpublished treatise of Piero della Francesca. He was also familiar with the 'abbreviated construction' as described by Alberti and the geometrical construction of shadows, a technique of Leonardo da Vinci. Although Dürer made no innovations in these areas, he is notable as the first Northern European to treat matters of visual representation in a scientific way, and with understanding of Euclidean principles. In addition to these geometrical constructions, Dürer discusses in this last book of Underweysung der Messung an assortment of mechanisms for drawing in perspective from models and provides woodcut illustrations of these methods that are often reproduced in discussions of perspective. Four Books on Human Proportion Dürer's work on human proportions is called the Four Books on Human Proportion (Vier Bücher von Menschlicher Proportion) of 1528. The first book was mainly composed by 1512/13 and completed by 1523, showing five differently constructed types of both male and female figures, all parts of the body expressed in fractions of the total height. Dürer based these constructions on both Vitruvius and empirical observations of "two to three hundred living persons", in his own words. The second book includes eight further types, broken down not into fractions but an Albertian system, which Dürer probably learned from Francesco di Giorgio's 'De harmonica mundi totius' of 1525. In the third book, Dürer gives principles by which the proportions of the figures can be modified, including the mathematical simulation of convex and concave mirrors; here Dürer also deals with human physiognomy. The fourth book is devoted to the theory of movement. Appended to the last book, however, is a self-contained essay on aesthetics, which Dürer worked on between 1512 and 1528, and it is here that we learn of his theories concerning 'ideal beauty'. Dürer rejected Alberti's concept

being penalised for holding the ball unless the umpire rules no prior opportunity for disposal. The ball carrier may only be tackled between the shoulders and knees. If the opposition player forcefully contacts a player in the back while performing a tackle, the opposition player will be penalised for a push in the back. If the opposition tackles the player with possession below the knees (a low tackle or a trip) or above the shoulders (a high tackle), the team with possession of the football gets a free kick. If a player takes possession of the ball that has travelled more than from another player's kick, by way of a catch, it is claimed as a mark (meaning that the game stops while he prepares to kick from the point at which he marked). Alternatively, he may choose to "play on" forfeiting the set shot in the hope of pressing an advantage for his team (rather than allowing the opposition to reposition while he prepares for the free kick). Once a player has chosen to play on, normal play resumes and the player who took the mark is again able to be tackled. There are different styles of kicking depending on how the ball is held in the hand. The most common style of kicking seen in today's game, principally because of its superior accuracy, is the drop punt, where the ball is dropped from the hands down, almost to the ground, to be kicked so that the ball rotates in a reverse end over end motion as it travels through the air. Other commonly used kicks are the torpedo punt (also known as the spiral, barrel, or screw punt), where the ball is held flatter at an angle across the body, which makes the ball spin around its long axis in the air, resulting in extra distance (similar to the traditional motion of an American football punt), and the checkside punt or "banana", kicked across the ball with the outside of the foot used to curve the ball (towards the right if kicked off the right foot) towards targets that are on an angle. There is also the "snap", which is almost the same as a checkside punt except that it is kicked off the inside of the foot and curves in the opposite direction. It is also possible to kick the ball so that it bounces along the ground. This is known as a "grubber". Grubbers can bounce in a straight line, or curve to the left or right. Apart from free kicks, marks or when the ball is in the possession of an umpire for a ball up or throw in, the ball is always in dispute and any player from either side can take possession of the ball. Scoring A goal, worth 6 points, is scored when the football is propelled through the goal posts at any height (including above the height of the posts) by way of a kick from the attacking team. It may fly through "on the full" (without touching the ground) or bounce through, but must not have been touched, on the way, by any player from either team or a goalpost. A goal cannot be scored from the foot of an opposition (defending) player. A behind, worth 1 point, is scored when the ball passes between a goal post and a behind post at any height, or if the ball hits a goal post, or if any player sends the ball between the goal posts by touching it with any part of the body other than a foot. A behind is also awarded to the attacking team if the ball touches any part of an opposition player, including a foot, before passing between the goal posts. When an opposition player deliberately scores a behind for the attacking team (generally as a last resort to ensure that a goal is not scored) this is termed a rushed behind. As of the 2009 AFL season, a free kick is awarded against any player who deliberately rushes a behind. The goal umpire signals a goal with two hands pointed forward at elbow height, or a behind with one hand. Both goal umpires then wave flags above their heads to communicate this information to the scorers. The team that has scored the most points at the end of play wins the game. If the scores are level on points at the end of play, then the game is a draw; extra time applies only during finals matches in some competitions. As an example of a score report, consider a match between and with the former as the home team. Essendon's score of 11 goals and 14 behinds equates to 80 points. Melbourne's score of 10 goals and 7 behinds equates to a 67-point tally. Essendon wins the match by a margin of 13 points. Such a result would be written as: " 11.14 (80) defeated 10.7 (67)." And spoken as: "Essendon, eleven-fourteen, eighty, defeated Melbourne ten-seven, sixty-seven". Additionally, it can be said that: "Essendon defeated Melbourne by thirteen points". The home team is typically listed first and the visiting side is listed second. The scoreline is written with respect to the home side. For example, won in successive weeks, once as the home side and once as the visiting side. These would be written out thus: " 23.20 (158) defeated 8.14 (62)." " 17.13 (115) defeated by 18.10 (118)." A draw would be written as: " 10.8 (68) drew with 10.8 (68)". Structure and competitions The football season proper is from March to August (early autumn to late winter in Australia) with finals being held in September and October. In the tropics, the game is sometimes played in the wet season (October to March). The AFL is recognised by the Australian Sports Commission as being the National Sporting Organisation for Australian Football. There are also seven state/territory-based organisations in Australia, all of which are affiliated with the AFL. These state leagues hold annual semi-professional club competitions, with some also overseeing more than one league. Local semi-professional or amateur organisations and competitions are often affiliated to their state organisations. The AFL is the de facto world governing body for Australian football. There are also a number of affiliated organisations governing amateur clubs and competitions around the world. For almost all Australian football club competitions, the aim is to win the Premiership. The premiership is typically decided by a finals series. The teams that occupy the highest positions on the ladder after the home-and-away season play off in a "semi-knockout" finals series, culminating in a single Grand Final match to determine the premiers. Between four and eight teams contest a finals series, typically using the AFL final eight system or a variation of the McIntyre System. The team which finishes first on the ladder after the home-and-away season is referred to as a "minor premier", but this usually holds little stand-alone significance, other than receiving a better draw in the finals. Many metropolitan leagues have several tiered divisions, with promotion of the lower division premiers and relegation of the upper division's last placed team at the end of each year. At present, none of the top level national or state level leagues in Australia utilise this structure. Women and Australian football The high level of interest shown by women in Australian football is considered unique among the world's football codes. It was the case in the 19th century, as it is in modern times, that women made up approximately half of total attendances at Australian football matches—a far greater proportion than, for example, the estimated 10 per cent of women that comprise British soccer crowds. This has been attributed in part to the egalitarian character of Australian football's early years in public parks where women could mingle freely and support the game in various ways. In terms of participation, there are occasional 19th-century references to women playing the sport, but it was not until the 1910s that the first organised women's teams and competitions appeared. Women's state leagues emerged in the 1980s, and in 2013, the AFL announced plans to establish a nationally televised women's competition. Amidst a surge in viewing interest and participation in women's football, the AFL pushed the founding date of the competition, named AFL Women's, to 2017. Eight AFL clubs won licences to field sides in its inaugural season. Variations and related sports Many related games have emerged from Australian football, mainly with variations of contact to encourage greater participation. These include Auskick (played by children aged between 5 and 12), kick-to-kick (and its variants end-to-end footy and marks up), rec footy, 9-a-side footy, masters Australian football, handball and longest-kick competitions. Players outside of Australia sometimes engage in related games adapted to available fields, like metro footy (played on gridiron fields) and Samoa rules (played on rugby fields). One such prominent example in use since 2018 is AFLX, a shortened variation of the game with seven players a side, played on a soccer-sized pitch. International rules football The similarities between Australian football and the Irish sport of Gaelic football have allowed for the creation of a hybrid code known as international rules football. The first international rules matches were contested in Ireland during the 1967 Australian Football World Tour. Since then, various sets of compromise rules have been trialed, and in 1984 the International Rules Series commenced with national representative sides selected by Australia's state leagues (later by the AFL) and the Gaelic Athletic Association (GAA). The competition became an annual event in 1998, but was postponed indefinitely in 2007 when the GAA pulled out due to Australia's severe and aggressive style of play. It resumed in Australia in 2008 under new rules to protect the player with the ball. Global reach Australian rules football is played throughout the world. 26 countries have participated in the International Cup (held trienially since 2002 and the highest level of international competition), and 20 countries have participated in the Euro Cup, both of which prohibit Australian players. Over 20 countries have either affiliation or working agreements with the AFL (which became the world governing body in when it dissolved the International Australian Football Council in 2002). There have been many VFL/AFL players who were born outside Australia, an increasing number of which have been recruited through initiatives open to players from around the world (such as the AFL International Combine) and, more recently, international scholarship programs. The world's oldest surviving Australian Football clubs (outside Australia) are Oxford and Cambridge University (England) (1921), Boe (Nauru) (1924), Koboni Demons (PNG) (1965), North Shore Tigers (NZ) (1974), Hong Kong Dragons (Hong Kong) (1989) and Tokyo Goannas (Japan) (1991). In the late 19th and early 20th centuries, the game rapidly spread with the Australian diaspora to areas such as New Zealand (1871), England (1888), South Africa (1896), Canada (1905), the United States (1906), Japan (1910) and Nauru (1916). From the 1880s touring sides were helping the major football codes spread throughout the world. With the increasing divergence of the football codes, early touring sides from England and New Zealand would have to switch codes or play under compromise rules to facilitate tests. Proposed touring Australian football teams faced the reverse dilemma. Nationalist agenda of the VFL and AFC Post-Federation of the Australian colonies, the game's governing bodies became highly insular in their approach. In particular, until the middle of the century, the game's premier leagues, the newly formed and increasingly professional VFL (and to a lesser extent the South Australian league), were preferential in the support they provided to overseas competitions to those areas perceived to pose the least potential threat to their status. They had become staunchly opposed to the game's development in larger first world nations. Faced with the growth of British sports and their increasing professionalism in Australia and growing interest around the world in the Australian game the Australasian Football Council (led by the VFL) implemented a domestic policy for game development in 1906. The Council's policy reflected the strong Australian nationalism of the time "one flag, one destiny, one football game" - that as the national code, all matches should be played under an Australian flag, with an Australian manufactured ball where possible on Australian soil, by the whole nation. The Council believed it could better defend its premier position in Australia by allocating all its promotional resources to grow its marketshare in New South Wales and Queensland whilst its coexistence with rugby and the promise of a universal football code was part of its ambition of keeping growth of the game in Australia under its national (and international) control. While it allowed voting member New Zealand to send a team to the 1908 Melbourne Carnival, the policy meant no touring sides and the phasing out of financial support which stymied the game outside Australia creating significant financial and logistic barriers for overseas sides to compete. The nationalistic policies were reinforced by the 1908 Prime Ministerial speech of former player Alfred Deakin delivered at the opening of the 1908 carnival and would underpin the governing body's international policy for more than half a century. Unsupported grassroots growth Western Australia (where the code was outgrowing rugby without significant financial assistance) was highly critical of the AFC's anti-international policies and implemented its own nationalistic strategies to foster the game overseas in the belief that this would help support its long term sustainability at home. This included facilitating tours through the Young Australia League that, whilst not sanctioned by the game's governing body, led to the first international matches at junior level. These included: United States vs Australia (San Francisco, 1911) and Canada vs United States (Vancouver, 1912). By 1913, however, under increasing pressure from the Council to fall into line, Western Australia officially withdrew its financial support for overseas football, though it continued to extend some support to its overseas initiatives. The combined impact of the AFC's anti-international policy and World War I saw by the 1920s, an end to all competition outside of Australian dependencies (with the exception of the traditional Oxford Cambridge match), with rugby becoming firmly established outside of its heartlands. In the post-war era, however, the sport experienced an unexpected boom in the Pacific in the dependent territories of Papua New Guinea (1944) and Nauru where rugby had been introduced first, but Australian Rules had clearly become a major participation and spectator sport. Unlike other nations, as dependent territories both qualified to affiliate with, and receive financial support from, the Australian National Football Council. International revival Australian rules experienced an international revival in the 1970s and 1980s. It is during this time that the first modern amateur clubs and competitions spread through Oceania including in New Zealand (1974), and to the other continents of: Asia (1987), Europe and North America (1989), South America and Africa (1997). The sport developed a cult following in the United States when matches were broadcast on the fledgling ESPN network in the 1980s. As the size of the Australian diaspora has increased, so has the number of clubs outside Australia. This expansion has been further aided by multiculturalism and assisted by exhibition matches as well as exposure generated through players who have converted to and from other football codes. In Papua New Guinea, New Zealand, South Africa, Canada, and the United States there are many thousands of players. Since the 2010s, the sport has grown rapidly on the Indian subcontinent primarily due to the relationship with cricket. The first senior international test was played in 1976 between the national sides of Papua New Guinea and Nauru in front of a crowd of over 10,000 at Sir Hubert Murray Stadium in Port Moresby which PNG won by 129 points. Papua New Guinea came within two goals of Australia in the first match between the two countries in 1978 at U17 level at Football Park in Adelaide. The Australian Under 17 (known as the AFL Academy, the AFL's development side) began playing annual international tests for national sports funding including matches against South Africa (2007) and New Zealand (2012). While New Zealand came within a goal in 2014, the Australian side remains unbeaten. Australia has also sent touring indigenous sides which have been defeated by Papua New Guinea (most recently in 2009) but have won

as "hacking" (shin-kicking) in Rugby School football—to lessen the chance of injuries to working men. In another significant departure from English public school football, the Melbourne rules omitted any offside law. "The new code was as much a reaction against the school games as influenced by them", writes Mark Pennings. The rules were distributed throughout the colony; Thompson in particular did much to promote the new code in his capacity as a journalist. Early competition in Victoria Following Melbourne's lead, Geelong and Melbourne University also formed football clubs in 1859. While many early Victorian teams participated in one-off matches, most had not yet formed clubs for regular competition. A South Yarra side devised its own rules. To ensure the supremacy of the Melbourne rules, the first-club level competition in Australia, the Caledonian Society's Challenge Cup (1861–64), stipulated that only the Melbourne rules were to be used. This law was reinforced by the Athletic Sports Committee (ASC), which ran a variation of the Challenge Cup in 1865–66. With input from other clubs, the rules underwent several minor revisions, establishing a uniform code known as "Victorian rules". In 1866, the "first distinctively Victorian rule", the running bounce, was formalised at a meeting of club delegates chaired by H. C. A. Harrison, an influential pioneer who took up football in 1859 at the invitation of Wills, his cousin. The game around this time was defensive and low-scoring, played low to the ground in congested rugby-style scrimmages. The typical match was a 20-per-side affair, played with a ball that was roughly spherical, and lasted until a team scored two goals. The shape of the playing field was not standardised; matches often took place in rough, tree-spotted public parks, most notably the Richmond Paddock (Yarra Park), known colloquially as the Melbourne Football Ground. Wills argued that the turf of cricket fields would benefit from being trampled upon by footballers in winter, and, as early as 1859, football was allowed on the MCG. However, cricket authorities frequently prohibited football on their grounds until the 1870s, when they saw an opportunity to capitalise on the sport's growing popularity. Football gradually adapted to an oval-shaped field, and most grounds in Victoria expanded to accommodate the dual purpose—a situation that continues to this day. Spread to other colonies Football became organised in South Australia in 1860 with the formation of the Adelaide Football Club, the oldest football club in Australia outside Victoria. It devised its own rules, and, along with other Adelaide-based clubs, played a variety of codes until 1876, when they agreed to uniformly adopt most of the Victorian rules, with South Australian football pioneer Charles Kingston noting their similarity to "the old Adelaide rules". Likewise, Tasmanian clubs quarrelled over different rules until they adopted a slightly modified version of the Victorian game in 1879. The South Australian Football Association (SAFA), the sport's first governing body, formed on 30 April 1877, firmly establishing Victorian rules as the preferred code in that colony. The Victorian Football Association (VFA) formed the following month. As clubs began touring the colonies in the late 1870s, the sport spread to New South Wales, and in 1879, the first intercolonial match took place in Melbourne between Victoria and South Australia. In order to standardise the sport across Australia, delegates representing the football associations of South Australia, Tasmania, Victoria and Queensland met in 1883 and updated the code. New rules such as holding the ball led to a "golden era" of fast, long-kicking and high-marking football in the 1880s, a time which also saw players such as George Coulthard achieve superstardom, as well as the rise of professionalism, particularly in Victoria and Western Australia, where the code took hold during a series of gold rushes. Now known as Australasian rules or Australian rules, the sport became the first football code to develop mass spectator appeal, attracting world record attendances for sports viewing and gaining a reputation as "the people's game". The sport reached Queensland as early as 1866, and experienced a period of dominance there, but, like in New Zealand and areas of New South Wales north of the Riverina, it struggled to thrive, largely due to the spread of rugby football with British migration, regional rivalries and the lack of strong local governing bodies. In the case of Sydney, denial of access to grounds, the influence of university headmasters from Britain who favoured rugby, and the loss of players to other codes inhibited the game's growth. Emergence of the VFL In 1896, delegates from six of the wealthiest VFA clubs—Carlton, Essendon, Fitzroy, Geelong, Melbourne and South Melbourne—met to discuss the formation of a breakaway professional competition. Later joined by Collingwood and St Kilda, the clubs formed the Victorian Football League (VFL), which held its inaugural season in 1897. The VFL's popularity grew rapidly as it made several innovations, such as instituting a finals system, reducing teams from 20 to 18 players, and introducing the behind as a score. Richmond and University joined the VFL in 1908, and by 1925, with the addition of Hawthorn, Footscray and North Melbourne, it had become the preeminent league in the country and would take a leading role in many aspects of the sport. Interstate football and the World Wars The time around the federation of the Australian colonies in 1901 saw Australian rules undergo a revival in New South Wales, New Zealand and Queensland. In 1903, both the Queensland Australian Football League and the NSW Australian Football Association were established, and in New Zealand, as it moved towards becoming a dominion, leagues were also established in the major cities. This renewed popularity helped encourage the formation of the Australasian Football Council, which in 1908 in Melbourne staged the first national interstate competition, the Jubilee Australasian Football Carnival, with teams representing each state and New Zealand. The game was also established early on in the new territories. In the new national capital Canberra both soccer and rugby had a head start, but following the first matches in 1911, Australian rules football in the Australian Capital Territory became a major participation sport. By 1981 it had become much neglected and quickly lagged behind the other football codes. Australian rules football in the Northern Territory began shortly after the outbreak of the war in 1916 with the first match in Darwin. The Territory would go on to become the most popular sport and build the highest participation rate for the sport nationally. Both World War I and World War II had a devastating effect on Australian football and on Australian sport in general. While scratch matches were played by Australian "diggers" in remote locations around the world, the game lost many of its great players to wartime service. Some clubs and competitions never fully recovered. Between 1914 and 1915, a proposed hybrid code of Australian football and rugby league, the predominant code of football in New South Wales and Queensland, was trialled without success. In Queensland, the state league went into recess for the duration of the war. VFL club University left the league and went into recess due to severe casualties. The WAFL lost two clubs and the SANFL was suspended for one year in 1916 due to heavy club losses. The Anzac Day match, the annual game between Essendon and Collingwood on Anzac Day, is one example of how the war continues to be remembered in the football community. The role of the Australian National Football Council (ANFC) was primarily to govern the game at a national level and to facilitate interstate representative and club competition. In 1968, the ANFC revived the Championship of Australia, a competition first held in 1888 between the premiers of the VFA and SAFA. Although clubs from other states were at times invited, the final was almost always between the premiers from the two strongest state competitions of the time—South Australia and Victoria—with Adelaide hosting most of the matches at the request of the SAFA/SANFL. The last match took place in 1976, with North Adelaide being the last non-Victorian winner in 1972. Between 1976 and 1987, the ANFC, and later the Australian Football Championships (AFC) ran a night series, which invited clubs and representative sides from around the country to participate in a knock-out tournament parallel to the premiership seasons, which Victorian sides still dominated. With the lack of international competition, state representative matches were regarded with great importance. Due in part to the VFL poaching talent from other states, Victoria dominated interstate matches for three-quarters of a century. State of Origin rules, introduced in 1977, stipulated that rather than representing the state of their adopted club, players would return to play for the state they were first recruited in. This instantly broke Victoria's stranglehold over state titles and Western Australia and South Australia began to win more of their games against Victoria. Both New South Wales and Tasmania scored surprise victories at home against Victoria in 1990. Towards a national league The term "Barassi Line", named after VFL star Ron Barassi, was coined by scholar Ian Turner in 1978 to describe the "fictitious geographical barrier" separating parts of New South Wales and Queensland which predominantly followed the two rugby codes from the rest of the country, where Australian football reigned. It became a reference point for the expansion of Australian football and for establishing a national league. The way the game was played had changed dramatically due to innovative coaching tactics, with the phasing out of many of the game's kicking styles and the increasing use of handball; while presentation was influenced by television. In 1982, in a move that heralded big changes within the sport, one of the original VFL clubs, South Melbourne, relocated to Sydney and became known as the Sydney Swans. In the late 1980s, due to the poor financial standing of many of the Victorian clubs, and a similar situation existing in Western Australia in the sport, the VFL pursued a more national competition. Two more non-Victorian clubs, West Coast and Brisbane, joined the league in 1987 generating more than $8 million in license revenue for the Victorian clubs and increasing broadcast revenues which helped the Victorian clubs survive. In their early years, the Sydney and Brisbane clubs struggled both on and off-field because the substantial TV revenues they generated by playing on a Sunday went to the VFL. To protect these revenues the VFL granted significant draft concessions and financial aid to keep the expansion clubs competitive. The VFL changed its name to the Australian Football League (AFL) for the 1990 season, and over the next decade, three non-Victorian clubs gained entry: Adelaide (1991), Fremantle (1995) and the SANFL's Port Adelaide (1997), the only pre-existing club outside Victoria to join the league. In 2011 and 2012, respectively, two new non-Victorian clubs were added to the competition: Gold Coast and Greater Western Sydney. The AFL, currently with 18 member clubs, is the sport's elite competition and most powerful body. Following the emergence of the AFL, state leagues were quickly relegated to a second-tier status. The VFA merged with the former VFL reserves competition in 1998, adopting the VFL name. State of Origin also declined in importance, especially after an increasing number of player withdrawals. The AFL turned its focus to the annual International Rules Series against Ireland in 1998 before abolishing State of Origin the following year. State and territorial leagues still contest interstate matches, as do AFL Women players. Although a Tasmanian AFL bid is ongoing, the AFL's focus has been on expanding into markets outside Australian football's traditional heartlands in order to maximise its broadcast revenue. The AFL regularly schedules pre-season exhibition matches in all Australian states and territories as part of the Regional Challenge. The AFL signalled further attempts at expansion in the 2010s by hosting home-and-away matches in New Zealand, followed by China. Laws of the game Field Australian rules football playing fields have no fixed dimensions but at senior level are typically between long and wide wing-to-wing. The field, like the ball, is oval-shaped, and in Australia, cricket grounds are often used. No more than 18 players of each team (or, in AFL Women's, 16 players) are permitted to be on the field at any time. Up to four interchange (reserve) players may be swapped for those on the field at any time during the game. In Australian rules terminology, these players wait for substitution "on the bench"—an area with a row of seats on the sideline. Players must interchange through a designated interchange "gate" with strict penalties for having too many players from one team on the field. In addition, some leagues have each team designate one player as a substitute who can be used to make a single permanent exchange of players during a game. There is no offside rule nor are there set positions in the rules; unlike many other forms of football, players from both teams may disperse across the whole field before the start of play. However, a typical on-field structure consists of six forwards, six defenders or "backmen" and six midfielders, usually two wingmen, one centre and three followers, including a ruckman, ruck-rover and rover. Only four players from each team are allowed within the centre square () at every centre bounce, which occurs at the commencement of each quarter, and to restart the game after a goal is scored. There are also other rules pertaining to allowed player positions during set plays (that is, after a mark or free kick) and during kick-ins following the scoring of a behind. Match duration A game consists of four quarters and a timekeeper officiates their duration. At the professional level, each quarter consists of 20 minutes of play, with the clock being stopped for instances such as scores, the ball going out of bounds or at the umpire's discretion, e.g. for serious injury. Lower grades of competition might employ shorter quarters of play. The umpire signals time-off to stop the clock for various reasons, such as the player in possession being tackled into stagnant play. Time resumes when the umpire signals time-on or when the ball is brought

risks involved in its dealings with overseas firms and individuals. The Authority did not find that any money had actually made its way to illegal organisations. Aon qualified for a 30% discount on the fine as a result of its cooperation with the investigation. Aon said its conduct was not deliberate, adding it had since "significantly strengthened and enhanced its controls around the usage of third parties". US Foreign Corrupt Practices Act violations In December 2011, Aon Corporation paid a $16.26 million penalty to the U.S. Securities and Exchange Commission (SEC) and the U.S. Department of Justice (DOJ) for violations of the US Foreign Corrupt Practices Act (FCPA). According to the SEC, Aon's subsidiaries made improper payments of over $3.6 million to government officials and third-party facilitators in Costa Rica, Egypt, Vietnam, Indonesia, the United Arab Emirates, Myanmar and Bangladesh, between 1983 and 2007, to obtain and retain insurance contracts. Major acquisitions On 5 January 2007, Aon announced that its Aon Affinity group had acquired the WedSafe Wedding Insurance program. On 22 August 2008, Aon announced that it had acquired London-based Benfield Group. The acquiring price was US$1.75 billion or £935 million, with US$170 million of debt. On 5 March 2010, Hewitt Associates announced that it acquired Senior Educators Ltd. The acquisition offers companies a new way to address retiree medical insurance commitments. On 12 July 2010, Aon announced that it had agreed to buy Lincolnshire, Illinois-based Hewitt Associates for $4.9 billion in cash and stock. On 7 April 2011, Aon announced that it had acquired Johannesburg, South Africa-based Glenrand MIB. Financial terms were not disclosed. On 19 July 2011, Aon announced that it bought Westfield Financial Corp., the owner of insurance-industry consulting firm Ward Financial Group, from Ohio Farmers Insurance Co. Financial terms were not disclosed. On 22 October 2012, Aon announced that it agreed to buy OmniPoint, Inc, a Workday consulting firm. Financial terms were not disclosed. On 16 June 2014, Aon announced that it agreed to buy National Flood Services, Inc., a large processor of flood insurance, from Stoneriver Group, L.P. On 31 October 2016, Aon's Aon Risk Solutions completed acquisition of Stroz Friedberg LLC, a specialised risk management firm focusing on cybersecurity. On 14 November 2016, Aon acquired CoCubes an online Indian Assessment firm, facilitating hiring of entry-level engineering graduates. On 10 February 2017, Aon plc agreed to sell its human resources outsourcing platform for US$4.8 billion (£3.8 billion) to Blackstone Group L.P. (BX.N), creating a new company called Alight Solutions. In September 2017, Aon announced its intent to purchase real estate investment management firm The Townsend Group from Colony NorthStar for $475 million, expanding Aon's property investment management portfolio. On 9 March 2020, Aon announced its merger with Willis Towers Watson for nearly $30 billion in an all-stock deal that creates the world's largest insurance broker. As of 21 May 2020, Willis board was under probe over merger agreement with Aon. The deal was called off in July 2021. Operations Manchester United On 3 June 2009, it was reported that Aon had signed a four-year shirt sponsorship deal with English football giant Manchester United. On 1 June 2010, Aon replaced American insurance company AIG as the principal sponsor of the club. The Aon logo was prominently displayed on the front of the club's shirts until the 2014/2015 season when Chevrolet replaced them. The deal was said to be worth £80 million over four years, replacing United's deal with AIG as the most lucrative shirt deal in history at the time. In April 2013, Aon signed a new eight-year deal with Manchester United to rename their training

time of the September 11 attacks. When the North Tower was struck by American Airlines Flight 11 at 8:46 a.m., employees began evacuating from the upper floors of the South Tower. The evacuation of Aon's offices was carried out quickly, as 924 of the estimated 1,100 Aon employees present at the time managed to evacuate the building before United Airlines Flight 175 struck it twenty stories below them at 9:03 a.m. Many, however, did not manage to exit the building in time. As a result, 176 employees of Aon were killed when the tower collapsed at 9:59 a.m., including Kevin Cosgrove. Spitzer investigation In 2004–2005, Aon, along with other brokers including Marsh & McLennan and Willis, fell under regulatory investigation under New York Attorney General Eliot Spitzer and other state attorneys general. At issue was the practice of insurance companies' payments to brokers (known as contingent commissions). The payments were thought to bring a conflict of interest, swaying broker decisions on behalf of carriers, rather than customers. In the spring of 2005, without acknowledging any wrongdoing, Aon agreed to a $190 million settlement, payable over 30 months. UK regulatory breach In January 2009, Aon was fined £5.69 million in the UK by the Financial Services Authority, who stated that the fine related to the company's inadequate bribery and corruption controls, claiming that between 14 January 2005 and 30 September 2007 Aon had failed to properly assess the risks involved in its dealings with overseas firms and individuals. The Authority did not find that any money had actually made its way to illegal organisations. Aon qualified for a 30% discount on the fine as a result of its cooperation with the investigation. Aon said its conduct was not deliberate, adding it had since "significantly strengthened and enhanced its controls around the usage of third parties". US Foreign Corrupt Practices Act violations In December 2011, Aon Corporation paid a $16.26 million penalty to the U.S. Securities and Exchange Commission (SEC) and the U.S. Department of Justice (DOJ) for violations of the US Foreign Corrupt Practices Act (FCPA). According to the SEC, Aon's subsidiaries made improper payments of over $3.6 million to government officials and third-party facilitators in Costa Rica, Egypt, Vietnam, Indonesia, the United Arab Emirates, Myanmar and Bangladesh, between 1983 and 2007, to obtain and retain insurance contracts. Major acquisitions On 5 January 2007, Aon announced that its Aon Affinity group had acquired the WedSafe Wedding Insurance program. On 22 August 2008, Aon announced that it had acquired London-based Benfield Group. The acquiring price was US$1.75 billion or £935 million, with US$170 million of debt. On 5 March 2010, Hewitt Associates announced that it acquired Senior Educators Ltd. The acquisition offers companies a new way to address retiree medical insurance commitments. On 12 July 2010, Aon announced that it had agreed to buy Lincolnshire, Illinois-based Hewitt Associates for $4.9 billion in cash and stock. On 7 April 2011, Aon announced that it had acquired Johannesburg, South Africa-based Glenrand MIB. Financial terms were not disclosed. On 19 July 2011, Aon announced that it bought Westfield Financial Corp., the owner of insurance-industry consulting firm Ward Financial Group, from Ohio Farmers Insurance Co. Financial terms were not disclosed. On 22 October 2012, Aon announced that

Second Viennese School. He is said to have brought more "human values" to the twelve-tone system, his works seen as more "emotional" than Schoenberg's. Critically, he is seen as having preserved the Viennese tradition in his music. Berg scholar Douglas Jarman writes in the New Grove Dictionary of Music and Musicians that "[as] the 20th century closed, the 'backward-looking' Berg suddenly came as [George] Perle remarked, to look like its most forward-looking composer." Alban Berg Quartett was a string quartet named after him, active from 1971 until 2008. The asteroid 4528 Berg is named after him (1983). Major compositions Piano Piano Sonata, Op. 1 Chamber String Quartet, Op. 3 Four Pieces for Clarinet and Piano, Op. 5 Lyric Suite, string quartet Chamber Concerto (1925) for piano, violin and 13 wind instruments Orchestral Three Pieces for Orchestra, Op. 6 Violin Concerto Vocal Seven Early Songs Vier Lieder (Four Songs), Op. 2 Five Orchestral Songs on Postcard Texts of Peter Altenberg, Op. 4 Der Wein Schliesse mir die Augen beide Operas Wozzeck, Op. 7 (1925) Lulu (1937) References Sources Further reading Adorno, Theodor W. Alban Berg: Master of the Smallest Link. Trans. Juliane Brand and Christopher Hailey. New York: Cambridge University Press, 1991. Brand, Juliane, Christopher Hailey and Donald Harris, eds. The Berg-Schoenberg Correspondence: Selected Letters. New York: Norton, 1987. Bruhn, Siglind, ed. Encrypted Messages in Alban Berg’s Music. New York: Garland Publishing, 1998. Carner, Mosco. Alban Berg: The Man and the Work. London: Duckworth, 1975. dos Santos, Silvio J. Narratives of Identity in Alban Berg's 'Lulu'''. Rochester, New York: University of Rochester Press, 2014. Floros, Constantin. Trans. by Ernest Bernhardt-Kabisch. Alban Berg and Hanna Fuchs. Bloomington: Indiana University Press, 2007. Grun, Bernard, ed. Alban Berg: Letters to his Wife. London: Faber and Faber, 1971. Headlam, Dave. The Music of Alban Berg. New Haven: Yale University Press, 1996. Jarman, Douglas. "Dr. Schon's Five-Strophe Aria: Some Notes on Tonality and Pitch Association in Berg's Lulu". Perspectives of New Music 8/2 (Spring/Summer 1970). Jarman, Douglas. "Some Rhythmic and Metric Techniques in Alban Berg's Lulu". The Musical Quarterly 56/3 (July 1970). Jarman, Douglas. "Lulu: The Sketches". International Alban Berg Society Newsletter, 6 (June 1978). Jarman, Douglas. "Countess Geschwitz's Series: A Controversy Resolved?". Proceedings of the Royal Musical Association 107 (1980/81). Jarman, Douglas. "Some Observations on Rhythm, Meter and Tempo in Lulu". In Alban Berg Studien. Ed. Rudolf Klein. Vienna: Universal Edition, 1981. Jarman, Douglas. "Lulu: The Musical and Dramatic Structure". Royal Opera House Covent Garden program notes, 1981. Jarman, Douglas. "The 'Lost' Score of the 'Symphonic Pieces from Lulu". International Alban Berg Society Newsletter 12 (Fall/Winter 1982). Leibowitz, René. Schoenberg and his school; the contemporary stage of the language of music. Trans. Dika Newlin. New York: Philosophical Library, 1949. Monson, Karen. Alban Berg: A Biography. London: Macdonald and Jane's, 1979. Perle, George. The Operas of Alban Berg. Berkeley: University of California Press, 1980. Redlich, Hans Ferdinand. Alban Berg, the Man and His Music. London: John Calder, 1957. Reich, Willi. The life and work of Alban Berg. Trans. Cornelius Cardew. New York : Da Capo Press, 1982. Schmalfeldt, Janet. "Berg's Path to Atonality: The Piano Sonata, Op. 1". Alban Berg: Historical and Analytical Perspectives. Eds. David Gable and Robert P. Morgan, pp. 79–110. New York: Oxford University Press, 1991. Schweizer, Klaus. Die Sonatensatzform im Schaffen Alban Bergs. Stuttgart: Satz und Druck, 1970. Wilkey, Jay Weldon. Certain Aspects of Form in the Vocal Music of Alban Berg. Ph.D. thesis. Ann Arbor: Indiana University, 1965. Warrack, John and Ewan West. The Oxford Dictionary of Opera'', 1992. . External links Alban Berg biography and works on the UE website (publisher) Vocal texts used by Alban Berg with translations to various languages, LiederNet Archive Alban Berg at Pytheas Center for Contemporary Music albanberg.resampled.de The most comprehensive

full-time; by 1907 he began composition lessons. His student compositions included five drafts for piano sonatas. He also wrote songs, including his Seven Early Songs (Sieben frühe Lieder), three of which were Berg's first publicly performed work in a concert that featured the music of Schoenberg's pupils in Vienna that year. The early sketches eventually culminated in Piano Sonata, Op. 1 (1907–1908); it is one of the most formidable "first" works ever written. Berg studied with Schoenberg for six years until 1911. Among Schoenberg's teaching was the idea that the unity of a musical composition depends upon all its aspects being derived from a single basic idea; this idea was later known as developing variation. Berg passed this on to his students, one of whom, Theodor W. Adorno, stated: "The main principle he conveyed was that of variation: everything was supposed to develop out of something else and yet be intrinsically different". The Piano Sonata is an example—the whole composition is derived from the work's opening quartal gesture and its opening phrase. Innovation Berg was a part of Vienna's cultural elite during the heady fin de siècle period. His circle included the musicians Alexander von Zemlinsky and Franz Schreker, the painter Gustav Klimt, the writer and satirist Karl Kraus, the architect Adolf Loos, and the poet Peter Altenberg. In 1906 Berg met the singer (1885–1976), daughter of a wealthy family (rumoured to be in fact the illegitimate daughter of Emperor Franz Joseph I from his liaison with Anna Nahowski). Despite the outward hostility of her family, the couple married on 3 May 1911. In 1913 two of Berg's Altenberg Lieder (1912) were premièred in Vienna, conducted by Schoenberg in the infamous Skandalkonzert. Settings of aphoristic poetic utterances, the songs are accompanied by a very large orchestra. The performance caused a riot, and had to be halted. Berg effectively withdrew the work, and it was not performed in full until 1952. The full score remained unpublished until 1966. From 1915 to 1918 Berg served in the Austro-Hungarian Army. During a period of leave in 1917 he accelerated work on his first opera, Wozzeck. After the end of World War I, he settled again in Vienna, where he taught private pupils. He also helped Schoenberg run his Society for Private Musical Performances, which sought to create the ideal environment for the exploration and appreciation of unfamiliar new music by means of open rehearsals, repeat performances, and the exclusion of professional critics. Berg had a particular interest in the number 23, using it to structure several works. Various suggestions have been made as to the reason for this interest: that he took it from the biorhythms theory of Wilhelm Fliess, in which a 23-day cycle is considered significant, or because he first suffered an asthma attack on the 23rd of the month. Success of Wozzeck and inception of Lulu (1924–29) In 1924 three excerpts from Wozzeck were performed, which brought Berg his first public success. The opera, which Berg completed in 1922, was first performed on 14 December 1925, when Erich Kleiber conducted the first performance in Berlin. Today, Wozzeck is seen as one of the century's most important works. Berg made a start on his second opera, the three-act Lulu, in 1928 but interrupted the work in 1929 for the concert aria Der Wein which he completed that summer. Der Wein presaged Lulu in a number of ways, including vocal style, orchestration, design and text. Other well-known Berg compositions include the Lyric Suite (1926), which was later shown to employ elaborate cyphers to document a secret love affair; the post-Mahlerian Three Pieces for Orchestra (completed in 1915 but not performed until after Wozzeck); and the Chamber Concerto (Kammerkonzert, 1923–25) for violin, piano, and 13 wind instruments: this latter is written so conscientiously that Pierre Boulez has called it "Berg's strictest composition" and it, too, is permeated by cyphers and posthumously disclosed hidden programs. Final years (1930–35) Life for the musical world was becoming increasingly difficult in the 1930s both in Vienna and Germany due to the rising tide of antisemitism and the Nazi cultural ideology that denounced modernity. Even to have an association with someone who was Jewish could lead to denunciation, and Berg's "crime" was to have studied with the Jewish composer Arnold Schoenberg. Berg found that opportunities for his work to be performed in Germany were becoming rare, and eventually his music was proscribed and placed on the list of degenerate music. In 1932 Berg and his wife acquired an isolated lodge, the Waldhaus on the southern shore of the Wörthersee, near Schiefling am See in Carinthia, where he was able to work in seclusion, mainly on Lulu and the Violin Concerto. At the end of 1934, Berg became involved in the political intrigues around finding a replacement for Clemens Krauss as director of the Vienna State Opera. As more of the performances of his work in Germany were cancelled by the Nazis, who had come to power in early 1933, he needed to ensure the new director would be an advocate for modernist music. Originally, the premiere of Lulu had been planned for the Berlin State Opera, where Erich Kleiber continued to champion his music and had conducted the premiere of Wozzeck in 1925, but now this was looking increasingly uncertain, and Lulu was rejected by the Berlin authorities in the spring of 1934. Kleiber's production of the Lulu symphonic suite on 30 November 1934 in Berlin was also the occasion of his resignation in protest at the extent of conflation of culture with politics. Even in Vienna, the opportunities for the Vienna School of musicians was dwindling.

uncontrolled or uncontrollable variables in the experiment. In error the true value and observed value in chemical analysis can be related with each other by the equation where is the absolute error. is the true value. is the observed value. Error of a measurement is an inverse measure of accurate measurement i.e. smaller the error greater the accuracy of the measurement. Errors can be expressed relatively. Given the relative error(): The percent error can also be calculated: If we want to use these values in a function, we may also want to calculate the error of the function. Let be a function with variables. Therefore, the propagation of uncertainty must be calculated in order to know the error in : Standards Standard curve A general method for analysis of concentration involves the creation of a calibration curve. This allows for determination of the amount of a chemical in a material by comparing the results of an unknown sample to those of a series of known standards. If the concentration of element or compound in a sample is too high for the detection range of the technique, it can simply be diluted in a pure solvent. If the amount in the sample is below an instrument's range of measurement, the method of addition can be used. In this method, a known quantity of the element or compound under study is added, and the difference between the concentration added, and the concentration observed is the amount actually in the sample. Internal standards Sometimes an internal standard is added at a known concentration directly to an analytical sample to aid in quantitation. The amount of analyte present is then determined relative to the internal standard as a calibrant. An ideal internal standard is an isotopically-enriched analyte which gives rise to the method of isotope dilution. Standard addition The method of standard addition is used in instrumental analysis to determine the concentration of a substance (analyte) in an unknown sample by comparison to a set of samples of known concentration, similar to using a calibration curve. Standard addition can be applied to most analytical techniques and is used instead of a calibration curve to solve the matrix effect problem. Signals and noise One of the most important components of analytical chemistry is maximizing the desired signal while minimizing the associated noise. The analytical figure of merit is known as the signal-to-noise ratio (S/N or SNR). Noise can arise from environmental factors as well as from fundamental physical processes. Thermal noise Thermal noise results from the motion of charge carriers (usually electrons) in an electrical circuit generated by their thermal motion. Thermal noise is white noise meaning that the power spectral density is constant throughout the frequency spectrum. The root mean square value of the thermal noise in a resistor is given by where kB is Boltzmann's constant, T is the temperature, R is the resistance, and is the bandwidth of the frequency . Shot noise Shot noise is a type of electronic noise that occurs when the finite number of particles (such as electrons in an electronic circuit or photons in an optical device) is small enough to give rise to statistical fluctuations in a signal. Shot noise is a Poisson process and the charge carriers that make up the current follow a Poisson distribution. The root mean square current fluctuation is given by where e is the elementary charge and I is the average current. Shot noise is white noise. Flicker noise Flicker noise is electronic noise with a 1/ƒ frequency spectrum; as f increases, the noise decreases. Flicker noise arises from a variety of sources, such as impurities in a conductive channel, generation, and recombination noise in a transistor due to base current, and so on. This noise can be avoided by modulation of the signal at a higher frequency, for example through the use of a lock-in amplifier. Environmental noise Environmental noise arises from the surroundings of the analytical instrument. Sources of electromagnetic noise are power lines, radio and television stations, wireless devices, compact fluorescent lamps and electric motors. Many of these noise sources are narrow bandwidth and therefore can be avoided. Temperature and vibration isolation may be required for some instruments. Noise reduction Noise reduction can be accomplished either in computer hardware or software. Examples of hardware noise reduction are the use of shielded cable, analog filtering, and signal modulation. Examples of software noise reduction are digital filtering, ensemble average, boxcar average, and correlation methods. Applications Analytical chemistry has applications including in forensic science, bioanalysis, clinical analysis, environmental analysis, and materials analysis. Analytical chemistry research is largely driven by performance (sensitivity, detection limit, selectivity, robustness, dynamic range, linear range, accuracy, precision, and speed), and cost (purchase, operation, training, time, and space). Among the main branches of contemporary analytical atomic spectrometry, the most widespread and universal are optical and mass

color-changing indicator. There are many other types of titrations, for example, potentiometric titrations. These titrations may use different types of indicators to reach some equivalence point. Instrumental methods Spectroscopy Spectroscopy measures the interaction of the molecules with electromagnetic radiation. Spectroscopy consists of many different applications such as atomic absorption spectroscopy, atomic emission spectroscopy, ultraviolet-visible spectroscopy, x-ray spectroscopy, fluorescence spectroscopy, infrared spectroscopy, Raman spectroscopy, dual polarization interferometry, nuclear magnetic resonance spectroscopy, photoemission spectroscopy, Mössbauer spectroscopy and so on. Mass spectrometry Mass spectrometry measures mass-to-charge ratio of molecules using electric and magnetic fields. There are several ionization methods: electron ionization, chemical ionization, electrospray ionization, fast atom bombardment, matrix assisted laser desorption/ionization, and others. Also, mass spectrometry is categorized by approaches of mass analyzers: magnetic-sector, quadrupole mass analyzer, quadrupole ion trap, time-of-flight, Fourier transform ion cyclotron resonance, and so on. Electrochemical analysis Electroanalytical methods measure the potential (volts) and/or current (amps) in an electrochemical cell containing the analyte. These methods can be categorized according to which aspects of the cell are controlled and which are measured. The four main categories are potentiometry (the difference in electrode potentials is measured), coulometry (the transferred charge is measured over time), amperometry (the cell's current is measured over time), and voltammetry (the cell's current is measured while actively altering the cell's potential). Thermal analysis Calorimetry and thermogravimetric analysis measure the interaction of a material and heat. Separation Separation processes are used to decrease the complexity of material mixtures. Chromatography, electrophoresis and field flow fractionation are representative of this field. Hybrid techniques Combinations of the above techniques produce a "hybrid" or "hyphenated" technique. Several examples are in popular use today and new hybrid techniques are under development. For example, gas chromatography-mass spectrometry, gas chromatography-infrared spectroscopy, liquid chromatography-mass spectrometry, liquid chromatography-NMR spectroscopy. liquid chromagraphy-infrared spectroscopy and capillary electrophoresis-mass spectrometry. Hyphenated separation techniques refer to a combination of two (or more) techniques to detect and separate chemicals from solutions. Most often the other technique is some form of chromatography. Hyphenated techniques are widely used in chemistry and biochemistry. A slash is sometimes used instead of hyphen, especially if the name of one of the methods contains a hyphen itself. Microscopy The visualization of single molecules, single cells, biological tissues, and nanomaterials is an important and attractive approach in analytical science. Also, hybridization with other traditional analytical tools is revolutionizing analytical science. Microscopy can be categorized into three different fields: optical microscopy, electron microscopy, and scanning probe microscopy. Recently, this field is rapidly progressing because of the rapid development of the computer and camera industries. Lab-on-a-chip Devices that integrate (multiple) laboratory functions on a single chip of only millimeters to a few square centimeters in size and that are capable of handling extremely small fluid volumes down to less than picoliters. Errors Error can be defined as numerical difference between observed value and true value. The experimental error can be divided into two types, systematic error and random error. Systematic error results from a flaw in equipment or the design of an experiment while random error results from uncontrolled or uncontrollable variables in the experiment. In error the true value and observed value in chemical analysis can be related with each other by the equation where is the absolute error. is the true value. is the observed value. Error of a measurement is an inverse measure of accurate measurement i.e. smaller the error greater the accuracy of the measurement. Errors can be expressed relatively. Given the relative error(): The percent error can also be calculated: If we want to use these values in a function, we may also want to calculate the error of the function. Let be a function with variables. Therefore, the propagation of uncertainty must be calculated in order to know the error in : Standards Standard curve A general method for analysis of concentration involves the creation of a calibration curve. This allows for determination of the amount of a chemical in a material by comparing the results of an unknown sample to those of a series of known standards. If the concentration of element or compound in a sample is too high for the detection range of the technique, it can simply be diluted in a pure solvent. If the amount in the sample is below an instrument's range of measurement, the method of addition can be used. In this method, a known quantity of the element or compound under study is added, and the difference between the concentration added, and the concentration observed is the amount actually in the sample. Internal standards Sometimes an internal standard is added at a known concentration directly to an analytical sample to aid in quantitation. The amount of analyte present is then determined relative to the internal standard as a calibrant. An ideal internal standard is an isotopically-enriched analyte which gives rise to the method of isotope dilution. Standard addition The method of standard addition is used in instrumental analysis to determine the concentration of a substance (analyte) in an unknown sample by comparison to a set of samples of known concentration, similar to using a calibration curve. Standard addition can be applied to most analytical techniques and is used instead of a calibration curve to solve the matrix effect problem. Signals and noise One of the most important components of analytical chemistry is maximizing the desired signal while minimizing the associated noise. The analytical figure of merit is known as the signal-to-noise ratio (S/N or SNR). Noise can arise from environmental factors as well as from fundamental physical processes. Thermal noise Thermal noise results from the motion of charge carriers (usually electrons) in an electrical circuit generated by their thermal motion. Thermal noise is white noise meaning that the power spectral density is constant throughout the frequency spectrum. The root mean square value of the thermal noise in a resistor is given by where kB is Boltzmann's constant, T is the temperature, R is the resistance, and is the bandwidth of the frequency . Shot noise Shot noise is a type of electronic noise that occurs when the finite number of particles (such as electrons in an electronic circuit or photons in an optical device) is small enough to give rise to statistical fluctuations in a signal. Shot noise is a Poisson process and the charge carriers that make up the current follow a Poisson distribution. The root mean square current fluctuation is given by where e is the elementary charge and I is the average current. Shot noise is white noise. Flicker noise Flicker noise

to the show's website, it is scheduled to reopen for an open-ended commercial run in the Fall of 2011. In 2011, the production received four Lucille Lortel Award nominations including Outstanding Musical, Outer Critics Circle and Drama League nominations, as well as five Drama Desk nominations including Outstanding Musical and won for Outstanding Ensemble Performance. In December 2016, In Transit became the first a cappella musical on Broadway. Barbershop style Barbershop music is one of several uniquely American art forms. The earliest reports of this style of a cappella music involved African Americans. The earliest documented quartets all began in barber shops. In 1938, the first formal men's barbershop organization was formed, known as the Society for the Preservation and Encouragement of Barber Shop Quartet Singing in America (S.P.E.B.S.Q.S.A), and in 2004 rebranded itself and officially changed its public name to the Barbershop Harmony Society (BHS). Today the BHS has about 22,000 members in approximately 800 chapters across the United States and Canada, and the barbershop style has spread around the world with organizations in many other countries. The Barbershop Harmony Society provides a highly organized competition structure for a cappella quartets and choruses singing in the barbershop style. In 1945, the first formal women's barbershop organization, Sweet Adelines, was formed. In 1953, Sweet Adelines became an international organization, although it didn't change its name to Sweet Adelines International until 1991. The membership of nearly 25,000 women, all singing in English, includes choruses in most of the fifty United States as well as in Australia, Canada, Finland, Germany, Ireland, Japan, New Zealand, Spain, Sweden, the United Kingdom, and the Netherlands. Headquartered in Tulsa, Oklahoma, the organization encompasses more than 1,200 registered quartets and 600 choruses. In 1959, a second women's barbershop organization started as a break off from Sweet Adelines due to ideological differences. Based on democratic principles which continue to this day, Harmony, Inc. is smaller than its counterpart, but has an atmosphere of friendship and competition. With about 2,500 members in the United States and Canada, Harmony, Inc. uses the same rules in contest that the Barbershop Harmony Society uses. Harmony, Inc. is registered in Providence, Rhode Island. Amateur and high school The popularity of a cappella among high schools and amateurs was revived by television shows and movies such as Glee and Pitch Perfect. High school groups may have conductors or student leaders who keep the tempo for the group, or beatboxers/vocal percussionists. Since 2013, summer training programs have appeared, such as A Cappella Academy in Los Angeles, California (founded by Ben Bram, Rob Dietz, and Avi Kaplan) and Camp A Cappella in Dayton, Ohio (founded by Deke Sharon and Brody McDonald). These programs teach about different aspects of a cappella music, including vocal performance, arranging, and beatboxing/vocal percussion. In other countries Afghanistan The national anthem of Afghanistan under the Taliban is an a cappella song, as musical instruments are considered haram (forbidden or religiously outlawed) . Iran The first a cappella group after the Islamic Revolution is the Damour vocal group, which was able to perform on national television despite a ban on women singing. Pakistan The musical show Strepsils Stereo is credited for introducing the art of a cappella in Pakistan. Sri Lanka Composer Dinesh Subasinghe became the first Sri Lankan to write a cappella pieces for SATB choirs. He wrote "The Princes of the Lost Tribe" and "Ancient Queen of Somawathee" for Menaka De Sahabandu and Bridget Helpe's choirs, respectively, based on historical incidents in ancient Sri Lanka. Voice Print is also a professional a cappella music group in Sri Lanka. Sweden The European a cappella tradition is especially strong in the countries around the Baltic and perhaps most so in Sweden as described by Richard Sparks in his doctoral thesis The Swedish Choral Miracle in 2000. Swedish a cappella choirs have over the last 25 years won around 25% of the annual prestigious European Grand Prix for Choral Singing (EGP) that despite its name is open to choirs from all over the world (see list of laureates in the Wikipedia article on the EGP competition). The reasons for the strong Swedish dominance are as explained by Richard Sparks manifold; suffice to say here that there is a long-standing tradition, an unusually large proportion of the populations (5% is often cited) regularly sing in choirs, the Swedish choral director Eric Ericson had an enormous impact on a cappella choral development not only in Sweden but around the world, and finally there are a large number of very popular primary and secondary schools ('music schools') with high admission standards based on auditions that combine a rigid academic regimen with high level choral singing on every school day, a system that started with Adolf Fredrik's Music School in Stockholm in 1939 but has spread over the country. United Kingdom A cappella has gained attention in the UK in recent years, with many groups forming at British universities by students seeking an alternative singing pursuit to traditional choral and chapel singing. This movement has been bolstered by organisations such as The Voice Festival UK. Western collegiate It is not clear exactly where collegiate a cappella began. The Rensselyrics of Rensselaer Polytechnic Institute (formerly known as the RPI Glee Club), established in 1873 is perhaps the oldest known collegiate a cappella group. The longest continuously-singing group is probably The Whiffenpoofs of Yale University, which was formed in 1909 and once included Cole Porter as a member. Collegiate a cappella groups grew throughout the 20th century. Some notable historical groups formed along the way include Colgate University's The Colgate 13 (1942), Dartmouth College's Aires (1946), Cornell University's Cayuga's Waiters (1949) and The Hangovers (1968), the University of Maine Maine Steiners (1958), the Columbia University Kingsmen (1949), the Jabberwocks of Brown University (1949), and the University of Rochester YellowJackets (1956). All-women a cappella groups followed shortly, frequently as a parody of the men's groups: the Smiffenpoofs of Smith College (1936), The Shwiffs of Connecticut College (The She-Whiffenpoofs, 1944), and The Chattertocks of Brown University (1951). A cappella groups exploded in popularity beginning in the 1990s, fueled in part by a change in style popularized by the Tufts University Beelzebubs and the Boston University Dear Abbeys. The new style used voices to emulate modern rock instruments, including vocal percussion/"beatboxing". Some larger universities now have multiple groups. Groups often join one another in on-campus concerts, such as the Georgetown Chimes' Cherry Tree Massacre, a 3-weekend a cappella festival held each February since 1975, where over a hundred collegiate groups have appeared, as well as International Quartet Champions The Boston Common and the contemporary commercial a cappella group Rockapella. Co-ed groups have produced many up-and-coming and major artists, including John Legend, an alumnus of the Counterparts at the University of Pennsylvania, Sara Bareilles, an alumna of Awaken A Cappella at University of California, Los Angeles, and Mindy Kaling, an alumna of the Rockapellas at Dartmouth College. Mira Sorvino is an alumna of the Harvard-Radcliffe Veritones of Harvard College, where she had the solo on Only You by Yaz. Jewish-interest groups such as Queens College's Tizmoret, Tufts University's Shir Appeal, University of Chicago's Rhythm and Jews, Binghamton University's Kaskeset, Ohio State University's Meshuganotes, Rutgers University's Kol Halayla, New York University's Ani V'Ata and Yale University's Magevet are also gaining popularity across the U.S. Increased interest in modern a cappella (particularly collegiate a cappella) can be seen in the growth of awards such as the Contemporary A Cappella Recording Awards (overseen by the Contemporary A Cappella Society) and competitions such as the International Championship of Collegiate A Cappella for college groups and the Harmony Sweepstakes for all groups. In December 2009, a new television competition series called The Sing-Off aired on NBC. The show featured eight a cappella groups from the United States and Puerto Rico vying for the prize of $100,000 and a recording contract with Epic Records/Sony Music. The show was judged by Ben Folds, Shawn Stockman, and Nicole Scherzinger and was won by an all-male group from Puerto Rico called Nota. The show returned for a second, third, fourth, and fifth season, won by Committed, Pentatonix, Home Free, and The Melodores from Vanderbilt University respectively. Each year, hundreds of Collegiate a cappella groups submit their strongest songs in a competition to be on The Best of College A Cappella (BOCA), an album compilation of tracks from the best college a cappella groups around the world. The album is produced by Varsity Vocals – which also produces the International Championship of Collegiate A Cappella – and Deke Sharon. ). According to ethnomusicologist Joshua S. Dunchan, "BOCA carries considerable cache and respect within the field despite the appearance of other compilations in part, perhaps, because of its longevity and the prestige of the individuals behind it." Collegiate a cappella groups may also submit their tracks to Voices Only, a two-disc series released at the beginning of each school year. A Voices Only album has been released every year since 2005. In addition, all women's a cappella groups can send

which were traditionally performed during the Easter week and dealt with the religious subject matter of that week, such as Christ's suffering and the Passion. Five of Schutz's Historien were Easter pieces, and of these the latter three, which dealt with the passion from three different viewpoints, those of Matthew, Luke and John, were all done a cappella style. This was a near requirement for this type of piece, and the parts of the crowd were sung while the solo parts which were the quoted parts from either Christ or the authors were performed in a plainchant. Byzantine Rite In the Byzantine Rite of the Eastern Orthodox Church and the Eastern Catholic Churches, the music performed in the liturgies is exclusively sung without instrumental accompaniment. Bishop Kallistos Ware says, "The service is sung, even though there may be no choir... In the Orthodox Church today, as in the early Church, singing is unaccompanied and instrumental music is not found." This a cappella behavior arises from strict interpretation of Psalms 150, which states, Let every thing that hath breath praise the Lord. Praise ye the Lord. In keeping with this philosophy, early Russian musika which started appearing in the late 17th century, in what was known as khorovïye kontsertï (choral concertos) made a cappella adaptations of Venetian-styled pieces, such as the treatise, Grammatika musikiyskaya (1675), by Nikolai Diletsky. Divine Liturgies and Western Rite masses composed by famous composers such as Peter Tchaikovsky, Sergei Rachmaninoff, Alexander Arkhangelsky, and Mykola Leontovych are fine examples of this. Opposition to instruments in worship Present-day Christian religious bodies known for conducting their worship services without musical accompaniment include many Oriental Orthodox Churches (such as the Coptic Orthodox Church), many Anabaptist communities (such as the Amish, Old German Baptist Brethren, Old Order Mennonites and Conservative Mennonites), some Presbyterian churches devoted to the regulative principle of worship, Old Regular Baptists, Primitive Baptists, Plymouth Brethren, Churches of Christ, Church of God (Guthrie, Oklahoma), the Reformed Free Methodists, Doukhobors, and the Byzantine Rite of Eastern Christianity. Certain high church services and other musical events in liturgical churches (such as the Roman Catholic Mass and the Lutheran Divine Service) may be a cappella, a practice remaining from apostolic times. Many Mennonites also conduct some or all of their services without instruments. Sacred Harp, a type of folk music, is an a cappella style of religious singing with shape notes, usually sung at singing conventions. Opponents of musical instruments in the Christian worship believe that such opposition is supported by the Christian scriptures and Church history. The scriptures typically referenced are Matthew 26:30; Acts 16:25; Romans 15:9; 1 Corinthians 14:15; Ephesians 5:19; Colossians 3:16; Hebrews 2:12, 13:15 and James 5:13, which show examples and exhortations for Christians to sing. There is no reference to instrumental music in early church worship in the New Testament, or in the worship of churches for the first six centuries. Several reasons have been posited throughout church history for the absence of instrumental music in church worship. Christians who believe in a cappella music today believe that in the Israelite worship assembly during Temple worship only the Priests of Levi sang, played, and offered animal sacrifices, whereas in the church era, all Christians are commanded to sing praises to God. They believe that if God wanted instrumental music in New Testament worship, He would have commanded not just singing, but singing and playing like he did in the Hebrew scriptures. Instruments have divided Christendom since their introduction into worship. They were considered a Roman Catholic innovation, not widely practiced until the 18th century, and were opposed vigorously in worship by a number of Protestant Reformers, including Martin Luther (1483–1546), Ulrich Zwingli, John Calvin (1509–1564) and John Wesley (1703–1791). Alexander Campbell referred to the use of an instrument in worship as "a cow bell in a concert". In Sir Walter Scott's The Heart of Midlothian, the heroine, Jeanie Deans, a Scottish Presbyterian, writes to her father about the church situation she has found in England (bold added): The folk here are civil, and, like the barbarians unto the holy apostle, have shown me much kindness; and there are a sort of chosen people in the land, for they have some kirks without organs that are like ours, and are called meeting-houses, where the minister preaches without a gown. Acceptance of instruments in worship Those who do not adhere to the regulative principle of interpreting Christian scripture, believe that limiting praise to the unaccompanied chant of the early church is not commanded in scripture, and that churches in any age are free to offer their songs with or without musical instruments. Those who subscribe to this interpretation believe that since the Christian scriptures never counter instrumental language with any negative judgment on instruments, opposition to instruments instead comes from an interpretation of history. There is no written opposition to musical instruments in any setting in the first century and a half of Christian churches (33–180 AD). The use of instruments for Christian worship during this period is also undocumented. Toward the end of the 2nd century, Christians began condemning the instruments themselves. Those who oppose instruments today believe these Church Fathers had a better understanding of God's desire for the church, but there are significant differences between the teachings of these Church Fathers and Christian opposition to instruments today. Modern Christians typically believe it is acceptable to play instruments or to attend weddings, funerals, banquets, etc., where instruments are heard playing religious music. The Church Fathers made no exceptions. Since the New Testament never condemns instruments themselves, much less in any of these settings, it is believed that "the church Fathers go beyond the New Testament in pronouncing a negative judgment on musical instruments." Written opposition to instruments in worship began near the turn of the 5th century. Modern opponents of instruments typically do not make the same assessment of instruments as these writers, who argued that God had allowed David the "evil" of using musical instruments in praise. While the Old Testament teaches that God specifically asked for musical instruments, modern concern is for worship based on the New Testament. Since "a cappella" singing brought a new polyphony (more than one note at a time) with instrumental accompaniment, it is not surprising that Protestant reformers who opposed the instruments (such as Calvin and Zwingli) also opposed the polyphony. While Zwingli was destroying organs in Switzerland – Luther called him a fanatic – the Church of England was burning books of polyphony. Some Holiness Churches such as the Free Methodist Church opposed the use of musical instruments in church worship until the mid-20th century. The Free Methodist Church allowed for local church decision on the use of either an organ or piano in the 1943 Conference before lifting the ban entirely in 1955. The Reformed Free Methodist Church and Evangelical Wesleyan Church were formed as a result of a schism with the Free Methodist Church, with the former retaining a cappella worship and the latter retaining the rule limiting the number of instruments in the church to the piano and organ. Jewish While worship in the Temple in Jerusalem included musical instruments, traditional Jewish religious services in the Synagogue, both before and after the last destruction of the Temple, did not include musical instruments given the practice of scriptural cantillation. The use of musical instruments is traditionally forbidden on the Sabbath out of concern that players would be tempted to repair (or tune) their instruments, which is forbidden on those days. (This prohibition has been relaxed in many Reform and some Conservative congregations.) Similarly, when Jewish families and larger groups sing traditional Sabbath songs known as zemirot outside the context of formal religious services, they usually do so a cappella, and Bar and Bat Mitzvah celebrations on the Sabbath sometimes feature entertainment by a cappella ensembles. During the Three Weeks musical instruments are prohibited. Many Jews consider a portion of the 49-day period of the counting of the omer between Passover and Shavuot to be a time of semi-mourning and instrumental music is not allowed during that time. This has led to a tradition of a cappella singing sometimes known as sefirah music. The popularization of the Jewish chant may be found in the writings of the Jewish philosopher Philo, born 20 BC. Weaving together Jewish and Greek thought, Philo promoted praise without instruments, and taught that "silent singing" (without even vocal chords) was better still. This view parted with the Jewish scriptures, where Israel offered praise with instruments by God's own command The shofar is the only temple instrument still being used today in the synagogue, and it is only used from Rosh Chodesh Elul through the end of Yom Kippur. The shofar is used by itself, without any vocal accompaniment, and is limited to a very strictly defined set of sounds and specific places in the synagogue service. However, silver trumpets, as described in Numbers 10:1-18, have been made in recent years and used in prayer services at the Western Wall. In the United States Peter Christian Lutkin, dean of the Northwestern University School of Music, helped popularize a cappella music in the United States by founding the Northwestern A Cappella Choir in 1906. The A Cappella Choir was "the first permanent organization of its kind in America." An a cappella tradition was begun in 1911 by F. Melius Christiansen, a music faculty member at St. Olaf College in Northfield, Minnesota. The St. Olaf College Choir was established as an outgrowth of the local St. John's Lutheran Church, where Christiansen was organist and the choir was composed, at least partially, of students from the nearby St. Olaf campus. The success of the ensemble was emulated by other regional conductors, and a tradition of a cappella choral music was born in the region at colleges like Concordia College (Moorhead, Minnesota), Augustana College (Rock Island, Illinois), Waldorf University (Forest City, Iowa), Luther College (Decorah, Iowa), Gustavus Adolphus College (St. Peter, Minnesota), Augustana College (Sioux Falls, South Dakota), and Augsburg University (Minneapolis, Minnesota). The choirs typically range from 40 to 80 singers and are recognized for their efforts to perfect blend, intonation, phrasing and pitch in a large choral setting. Movements in modern a cappella over the past century include barbershop and doo wop. The Barbershop Harmony Society, Sweet Adelines International, and Harmony Inc. host educational events including Harmony University, Directors University, and the International Educational Symposium, and international contests and conventions, recognizing international champion choruses and quartets. Many a cappella groups can be found in high schools and colleges. There are amateur Barbershop Harmony Society and professional groups that sing a cappella exclusively. Although a cappella is technically defined as singing without instrumental accompaniment, some groups use their voices to emulate instruments; others are more traditional and focus on harmonizing. A cappella styles range from gospel music to contemporary to barbershop quartets and choruses. The Contemporary A Cappella Society (CASA) is a membership option for former students, whose funds support hosted competitions and events. A cappella music was popularized between the late 2000s and the early to mid-2010s with media hits such as the 2009–2014 TV show The Sing-Off and the musical comedy film series Pitch Perfect. Recording artists In July 1943, as a result of the American Federation of Musicians boycott of US recording studios, the a cappella vocal group The Song Spinners had a best-seller with "Comin' In on a Wing and a Prayer". In the 1950s, several recording groups, notably The Hi-Los and the Four Freshmen, introduced complex jazz harmonies to a cappella performances. The King's Singers are credited with promoting interest in small-group a cappella performances in the 1960s. Frank Zappa loved Doo wop and a cappella, so Zappa released The Persuasions' first album from his label in 1970. Judy Collins recorded "Amazing Grace" a cappella. In 1983, an a cappella group known as The Flying Pickets had a Christmas 'number one' in the UK with a cover of Yazoo's (known in the US as Yaz) "Only You". A cappella music attained renewed prominence from the late 1980s onward, spurred by the success of Top 40 recordings by artists such as The Manhattan Transfer, Bobby McFerrin, Huey Lewis and the News, All-4-One, The Nylons, Backstreet Boys, Boyz II Men, and *NSYNC. Contemporary a cappella includes many vocal groups and bands who add vocal percussion or beatboxing to create a pop/rock/gospel sound, in some cases very similar to bands with instruments. Examples of such professional groups include Straight No Chaser, Pentatonix, The House Jacks, Rockapella, Mosaic, Home Free and M-pact. There also remains a strong a cappella presence within Christian music, as some denominations purposefully do not use instruments during worship. Examples of such groups are Take 6, Glad and Acappella. Arrangements of popular music for small a cappella ensembles typically include one voice singing the lead melody, one singing a rhythmic bass line, and the remaining voices contributing chordal or polyphonic accompaniment. A cappella can also describe the isolated vocal track(s) from a multitrack recording that originally included instrumentation. These vocal tracks may be remixed or put onto vinyl records for DJs, or released to the public so that fans can remix them. One such example is the a cappella release of Jay-Z's Black Album, which Danger Mouse mixed with The Beatles' White Album to create The Grey Album. On their 1966 album titled Album, Peter, Paul and Mary included the song "Norman Normal". All the sounds on that song, both vocals and instruments, were created by Paul's voice, with no actual instruments used. In 2013, an artist by the name Smooth McGroove rose to prominence with his style of a cappella music. He is best known for his a cappella covers of video game music tracks on YouTube. in 2015, an a cappella version of Jerusalem by multi-instrumentalist Jacob Collier was selected for Beats by Dre "The Game Starts Here" for the England Rugby World Cup campaign. Musical theatre A cappella has been used as the sole orchestration for original works of musical theatre that have had commercial runs Off-Broadway (theatres in New York City with 99 to 500 seats) only four times. The first was Avenue X which opened on 28 January 1994 and ran for 77 performances. It was produced by Playwrights Horizons with book by John Jiler, music and lyrics by Ray Leslee. The musical style of the show's score was primarily Doo-Wop as the plot revolved around Doo-Wop group singers of the 1960s. In 2001, The Kinsey Sicks, produced and starred in the critically acclaimed off-Broadway hit, "DRAGAPELLA! Starring the Kinsey Sicks" at New York's legendary Studio 54. That production received a nomination for a Lucille Lortel award as Best Musical and a Drama Desk nomination for Best Lyrics. It was directed by Glenn Casale with original music and lyrics by Ben Schatz. The a cappella musical Perfect Harmony, a comedy about two high school a cappella groups vying to win the National championship, made its Off Broadway debut at Theatre Row's Acorn Theatre on 42nd Street in New York City in October 2010 after a successful out-of-town run at the Stoneham Theatre, in Stoneham, Massachusetts. Perfect Harmony features the hit music of The Jackson 5, Pat Benatar, Billy Idol, Marvin Gaye, Scandal, Tiffany, The Romantics, The Pretenders, The Temptations, The Contours, The Commodores, Tommy James & the Shondells and The Partridge Family, and has been compared to a cross between Altar Boyz and The 25th Annual Putnam County Spelling Bee. The fourth a cappella musical to appear Off-Broadway, In Transit, premiered 5 October 2010 and was produced by Primary Stages with book, music, and lyrics by Kristen Anderson-Lopez, James-Allen Ford, Russ Kaplan, and Sara Wordsworth. Set primarily in the New York City subway system its score features an eclectic mix of musical genres (including

like Liszt's transcriptions of the Lieder or Berlioz’s orchestration for Erlkönig, tell us more about the arranger that about the original composer, but they can be diverting so long as they are in no way a replacement for the original". Gustav Mahler's Lieder eines fahrenden Gesellen (Songs of a Wayfarer) were originally written for voice with piano accompaniment. The composer's later arrangement of the piano part shows a typical ear for clarity and transparency in re-writing for an ensemble. Here is the original piano version of the closing bars of the second song, "Gieng heit' Morgen über's Feld": The orchestration shows Mahler's attention to detail in bringing out differentiated orchestral colours supplied by woodwind, strings and horn. Mahler uses a harp to convey the original arpeggios supplied by the left hand of the piano part. Mahler also extracts a descending chromatic melodic line, implied by the left hand in bars 2-4 (above) and gives it to the horn. Popular music Popular music recordings often include parts for brass horn sections, bowed strings, and other instruments that were added by arrangers and not composed by the original songwriters. Some pop arrangers even add sections using full orchestra, though this is less common due to the expense. Popular music arrangements may also be considered to include new releases of existing songs with a new musical treatment. These changes can include alterations to tempo, meter, key, instrumentation, and other musical elements. Well-known examples include Joe Cocker's version of the Beatles' "With a Little Help from My Friends," Cream's "Crossroads", and Ike and Tina Turner's version of Creedence Clearwater Revival's "Proud Mary". The American group Vanilla Fudge and British group Yes based their early careers on radical re-arrangements of contemporary hits. Bonnie Pointer performed disco and Motown-themed versions of "Heaven Must Have Sent You." Remixes, such as in dance music, can also be considered arrangements. Jazz Arrangements for small jazz combos are usually informal, minimal, and uncredited. Larger ensembles have generally had greater requirements for notated arrangements, though the early Count Basie big band is known for its many head arrangements, so called because they were worked out by the players themselves, memorized ("in the player's head"), and never written down. Most arrangements for big bands, however, were written down and credited to a specific arranger, as with arrangements by Sammy Nestico and Neal Hefti for Count Basie's later big bands. Don Redman made innovations in jazz arranging as a part of Fletcher Henderson's orchestra in the 1920s. Redman's arrangements introduced a more intricate melodic presentation and soli performances for various sections of the big band. Benny Carter became Henderson's primary arranger in the early 1930s, becoming known for his arranging abilities in addition to his previous recognition as a performer. Beginning in 1938, Billy Strayhorn became an arranger of great renown for the Duke Ellington orchestra. Jelly Roll Morton is sometimes considered the earliest jazz arranger. While he toured around the years 1912 to 1915, he wrote down parts to enable "pickup bands" to perform his compositions. Big-band arrangements are informally called charts. In the swing era they were usually either arrangements of popular songs or they were entirely new compositions. Duke Ellington's and Billy Strayhorn's arrangements for the Duke Ellington big band were usually new compositions, and some of Eddie Sauter's arrangements for the Benny Goodman band and Artie Shaw's arrangements for his own band were new compositions as well. It became more common to arrange sketchy jazz combo compositions for big band after the bop era. After 1950, the big bands declined in number. However, several bands continued and arrangers provided renowned arrangements. Gil Evans wrote a number of large-ensemble arrangements in the late 1950s and early 1960s intended for recording sessions only. Other arrangers of note include Vic Schoen, Pete Rugolo, Oliver Nelson, Johnny Richards, Billy May, Thad Jones, Maria Schneider, Bob Brookmeyer, Lou Marini, Nelson Riddle, Ralph Burns, Billy Byers, Gordon Jenkins, Ray Conniff, Henry Mancini, Ray Reach, Vince Mendoza, and Claus Ogerman. In the 21st century, the big-band arrangement has made a modest comeback. Gordon Goodwin, Roy Hargrove, and Christian McBride have all rolled out new big bands with both original compositions and new arrangements of standard tunes. For instrumental groups Strings The string section is a body of instruments composed of various bowed stringed instruments. By the 19th century orchestral music in Europe had standardized the string section into the following homogeneous instrumental groups: first violins, second violins (the same instrument as the first violins, but typically playing an accompaniment or harmony part to the first violins, and often at a lower pitch range), violas, cellos, and double basses. The string section in a multi-sectioned orchestra is sometimes referred to as the "string choir." The harp is also a stringed instrument, but is not a member of nor homogeneous with the violin family and is not considered part of the string choir. Samuel Adler classifies the harp as a plucked string instrument in the same category as the guitar (acoustic or electric), mandolin, banjo, or zither. Like the harp these instruments do not belong to the violin family and are not homogeneous with the string choir. In modern arranging these instruments are considered part of the rhythm section. The electric bass and upright string bass—depending on the circumstance—can

Reach, Vince Mendoza, and Claus Ogerman. In the 21st century, the big-band arrangement has made a modest comeback. Gordon Goodwin, Roy Hargrove, and Christian McBride have all rolled out new big bands with both original compositions and new arrangements of standard tunes. For instrumental groups Strings The string section is a body of instruments composed of various bowed stringed instruments. By the 19th century orchestral music in Europe had standardized the string section into the following homogeneous instrumental groups: first violins, second violins (the same instrument as the first violins, but typically playing an accompaniment or harmony part to the first violins, and often at a lower pitch range), violas, cellos, and double basses. The string section in a multi-sectioned orchestra is sometimes referred to as the "string choir." The harp is also a stringed instrument, but is not a member of nor homogeneous with the violin family and is not considered part of the string choir. Samuel Adler classifies the harp as a plucked string instrument in the same category as the guitar (acoustic or electric), mandolin, banjo, or zither. Like the harp these instruments do not belong to the violin family and are not homogeneous with the string choir. In modern arranging these instruments are considered part of the rhythm section. The electric bass and upright string bass—depending on the circumstance—can be treated by the arranger as either string section or rhythm section instruments. A group of instruments in which each member plays a unique part—rather than playing in unison with other like instruments—is referred to as a chamber ensemble. A chamber ensemble made up entirely of strings of the violin family is referred to by its size. A string trio consists of three players, a string quartet four, a string quintet five, and so on. In most circumstances the string section is treated by the arranger as one homogeneous unit and its members are required to play preconceived material rather than improvise. A string section can be utilized on its own (this is referred to as a string orchestra) or in conjunction with any of the other instrumental sections. More than one string orchestra can be utilized. A standard string section (vln., vln 2., vla., vcl, cb.) with each section playing unison allows the arranger to create a five-part texture. Often an arranger will divide each violin section in half or thirds to achieve a denser texture. It is possible to carry this division to its logical extreme in which each member of the string section plays his or her own unique part. Size of the string section Artistic, budgetary and logistical concerns, including the size of the orchestra pit or hall will determine the size and instrumentation of a string section. The Broadway musical West Side Story, in 1957, was booked into the Winter Garden theater; composer Leonard Bernstein disliked the playing of "house" viola players he would have to use there, and so he chose to leave them out of the show's instrumentation; a benefit was the creation of more space in the pit for an expanded percussion section. George Martin, producer and arranger for The Beatles, warns arrangers about the intonation problems when only two like instruments play in unison: "After a string quartet, I do not think there

of Trinitarian faith. The reasoning for rejecting Athanasius as the author usually relies on a combination of the following: The creed originally was most likely written in Latin, but Athanasius composed in Greek. Neither Athanasius nor his contemporaries ever mention the Creed. It is not mentioned in any records of the ecumenical councils. It appears to address theological concerns that developed after Athanasius died (including the filioque). It was most widely circulated among Western Christians. The use of the creed in a sermon by Caesarius of Arles, as well as a theological resemblance to works by Vincent of Lérins, point to Southern Gaul as its origin. The most likely time frame is in the late fifth or early sixth century AD, at least 100 years after Athanasius lived. The Christian theology of the creed is firmly rooted in the Augustinian tradition and uses the exact terminology of Augustine's On the Trinity (published 415 AD). In the late 19th century, there was a great deal of speculation about who might have authored the creed, with suggestions including Ambrose of Milan, Venantius Fortunatus and Hilary of Poitiers. The 1940 discovery of a lost work by Vincent of Lérins, which bears a striking similarity to much of the language of the Athanasian Creed, have led many to conclude that the creed originated with Vincent or his students. For example, in the authoritative modern monograph about the creed, J. N. D. Kelly asserts that Vincent of Lérins was not its author but that it may have come from the same milieu, the area of Lérins in southern Gaul. The oldest surviving manuscripts of the Athanasian Creed date from the late 8th century. Content The Athanasian Creed is usually divided into two sections: lines 1–28 address the doctrine of the Trinity, and lines 29–44 address the doctrine of Christology. Enumerating the three persons of the Trinity (Father, the Son, and the Holy Spirit), the first section of the creed ascribes the divine attributes to each individually. Thus, each person of the Trinity is described as uncreated (increatus), limitless (Immensus), eternal (æternus), and omnipotent (omnipotens). While ascribing the divine attributes and divinity to each person of the Trinity, thus avoiding subordinationism, the first half of the Athanasian Creed also stresses the unity of the three persons in the one Godhead, thus avoiding a theology of tritheism. The text of the Athanasian Creed is as follows: The Christology of the second section is more detailed than that of the Nicene Creed and reflects the teaching of the First Council of Ephesus (431) and the definition of the Council of Chalcedon (451). The Athanasian Creed uses the term substantia (a Latin translation of the Nicene homoousios: 'same being' or 'consubstantial') with respect to the relation of the Son to the Father according to his divine nature, but it also says that the Son is substantia of his mother Mary according to his human nature. The Creed's wording thus excludes not only Sabellianism and Arianism but also the Christological heresies of Nestorianism and Eutychianism. A need for a clear confession against Arianism arose in Western

Latin translation of the Nicene homoousios: 'same being' or 'consubstantial') with respect to the relation of the Son to the Father according to his divine nature, but it also says that the Son is substantia of his mother Mary according to his human nature. The Creed's wording thus excludes not only Sabellianism and Arianism but also the Christological heresies of Nestorianism and Eutychianism. A need for a clear confession against Arianism arose in Western Europe when the Ostrogoths and Visigoths, who had Arian beliefs, invaded at the beginning of the 5th century. The final section of this Creed also moved beyond the Nicene (and Apostles') Creeds in making negative statements about the people's fate: "They that have done good shall go into life everlasting: and they that have done evil into everlasting fire." That caused considerable debate in England in the mid-19th century, centred on the teaching of Frederick Denison Maurice. Uses Composed of 44 rhythmic lines, the Athanasian Creed appears to have been intended as a liturgical document, the original purpose of the creed being for it to be spoken or sung as a part of worship. The creed itself uses the language of public worship by speaking of the worship of God rather than the language of belief ("Now this is the catholic faith: We worship one God"). In the mediaeval Catholic Church, the creed was recited following the Sunday sermon or at the Sunday Office of Prime. The creed was often set to music and used in the place of a Psalm. Early Protestants inherited the late mediaeval devotion to the Athanasian Creed, and it was considered to be authoritative in many Protestant churches. The statements of Protestant belief (confessional documents) of various Reformers commend the Athanasian Creed to their followers, including the Augsburg Confession, the Formula of Concord, the Second Helvetic Confession, the Belgic Confession, the Bohemian Confession and the Thirty-nine Articles. A metric version, "Quicumque vult", with a musical setting, was published in The Whole Booke of Psalmes printed by John Day in 1562. Among modern Lutheran and Reformed churches adherence to the Athanasian Creed is prescribed by the earlier confessional documents, but the creed does not receive much attention outside occasional use, especially on Trinity Sunday. In Reformed circles, it is included, for example, in the Christian Reformed Churches of Australia's Book of Forms (publ. 1991). However, it is rarely recited in public worship. It is sometimes recited by the Canadian Reformed Churches in the worship service. In the successive Books of Common Prayer of the reformed Church of England, from 1549 to 1662, its recitation was provided for on 19 occasions each year, a practice that continued until the 19th century, when vigorous controversy regarding its statement about 'eternal damnation' saw its use gradually decline. It remains one of the three Creeds approved in the Thirty-Nine Articles, and it is printed in several current Anglican prayer books, such as A Prayer Book for Australia (1995). As with Roman Catholic practice, its use is now generally only on Trinity Sunday or its octave. An Anglican devotional manual published by The Church Union, A Manual of Catholic Devotion: For Members of the Church of England, includes the Athanasian Creed with the prayers for Mattins, with the note: "Said on certain feasts at Mattins instead of the Apostles' Creed". The Episcopal Church, based in the United States, has never provided for its use in worship, but added it to its Book of Common Prayer for the first time in 1979, where it is included in small print in a reference section, "Historical Documents of the Church". The Anglo-Catholic devotional manual Saint Augustine's Prayer Book, first published in 1947 and revised in 1967, includes the Athanasian Creed under "Devotions to the Holy Trinity". In Roman Catholic churches, it was traditionally said at Prime on Sundays when the Office was of the Sunday.

the capital of the province of Alicante and a historic Mediterranean port. The population of the city was 337,482 , the second-largest in Valencian Community. Toponymy The name of the city echoes the Arabic name Laqant () or al-Laqant (), which in turn reflects the Latin Lucentum and Greek root Leuké (or Leuka), meaning "white". History The area around Alicante has been inhabited for over 7000 years. The first tribes of hunter-gatherers moved down gradually from Central Europe between 5000 and 3000 BC. Some of the earliest settlements were made on the slopes of Mount Benacantil. By 1000 BC Greek and Phoenician traders had begun to visit the eastern coast of Spain, establishing small trading ports and introducing the native Iberian tribes to the alphabet, iron, and the pottery wheel. The Carthaginian general Hamilcar Barca established the fortified settlement of Akra Leuké (Greek: , meaning "White Mountain" or "White Point"), in the mid-230s BC, which is generally presumed to have been on the site of modern Alicante. Although the Carthaginians conquered much of the land around Alicante, the Romans would eventually rule Hispania Tarraconensis for over 700 years. By the 5th century AD, Rome was in decline and the Roman predecessor town of Alicante, known as Lucentum (Latin), was more or less under the control of the Visigothic warlord Theudimer and thereafter under Visigothic rule from 400 to 700 A.D. The Goths did not put up much resistance to the Arab conquest of Medina Laqant at the beginning of the 8th century. The Moors ruled southern and eastern Spain until the 13th century Reconquista (Reconquest). Alicante was conquered again in 1247 by the Castilian king Alfonso X, but later passed to the Kingdom of Valencia in 1296 with King James II of Aragon. It gained the status of Royal Village (Vila Reial) with representation in the medieval Valencian Parliament (Corts Valencianes). After several decades of being the battlefield where the Kingdom of Castile and the Crown of Aragon clashed, Alicante became a major Mediterranean trading station exporting rice, wine, olive oil, oranges, and wool. But between 1609 and 1614 King Felipe III expelled thousands of Moriscos who had remained in Valencia after the Reconquista, due to their cooperation with Barbary pirates who continually attacked coastal cities and caused much harm to trade. This act cost the region dearly; with so many skilled artisans and agricultural labourers gone, the feudal nobility found itself sliding into bankruptcy. Conditions worsened in the early 18th century; after the War of Spanish Succession, Alicante went into a long, slow decline, surviving through the 18th and 19th centuries by making shoes and growing agricultural produce such as oranges and almonds, and thanks to its fisheries. The end of the 19th century witnessed a sharp recovery of the local economy with increasing international trade and the growth of the city harbour leading to increased exports of several products (particularly during World War I when Spain was a neutral country). During the early 20th century, Alicante was a minor capital that took profit from the benefit of Spain's neutrality during World War I, and that provided new opportunities for local industry and agriculture. The Rif War in the 1920s saw numerous alicantinos drafted to fight in the long and bloody campaigns in the former Spanish protectorate (Northern Morocco) against the Rif rebels. The political unrest of the late 1920s led to the victory of Republican candidates in local council elections throughout the country, and the abdication of King Alfonso XIII. The proclamation of the Second Spanish Republic was much celebrated in the city on 14 April 1931. The Spanish Civil War broke out on 17 July 1936. Alicante was the last city loyal to the Republican government to be occupied by General Franco's troops on 1 April 1939, and its harbour saw the last Republican government officials fleeing the country. Vicious air bombings were targeted on Alicante during the three years of civil conflict, most notably the bombing by the Italian Aviazione Legionaria of the Mercado (Mercat) on 25 May 1938 in which more than 300 civilians perished. From 1954 onwards many pied-noirs settled in the city (as many as 30,000, although other sources decrease the amount tenfold). Alicante had fostered strong links with Oran in the past, and a notable share of the population of the latter city during the French colonial period had ancestry in the province of Alicante. The immigration process accelerated after the independence of Algeria in 1962. The late 1950s and early 1960s saw the onset of a lasting transformation of the city by the tourist industry. Large buildings and complexes rose in nearby Albufereta, e.g. El Barco, and Playa de San Juan (Platja de Sant Joan), with the benign climate being the biggest draw to attract prospective buyers and tourists who kept the hotels reasonably busy. New construction benefited the whole economy, as the development of the tourism sector also spawned new businesses such as restaurants, bars, and other tourist-oriented enterprises. Also, the old airfield at Rabassa was closed and air traffic moved to the new El Altet Airport, which made a more convenient and modern facility for charter flights bringing tourists from northern European countries. When Franco died in 1975, his successor Juan Carlos I played his part as the living symbol of the transition of Spain to a democratic constitutional monarchy. The governments of regional communities were given constitutional status as nationalities, and their governments were given more autonomy, including that of the Valencian region, the Generalitat Valenciana. The Port of Alicante has been reinventing itself since the industrial decline the city suffered in the 1980s (with most mercantile traffic lost to Valencia's harbour). In recent years, the Port Authority has established it as one of the most important ports in Spain for cruises, with 72 calls to port made by cruise ships in 2007 bringing some 80,000 passengers and 30,000 crew to the city each year. The moves to develop the port for more tourism have been welcomed by the city and its residents, but the latest plans to develop an industrial estate in the port have caused great controversy. Geography Alicante is located in the southeast of the Iberian Peninsula, on the shores of the Mediterranean Sea. Some orographic features rise over the largely flat terrain where the city is built on including the Cap de l'Horta, the Serra Grossa, the Tossal and the Benacantil hills. Located in an arid territory, Alicante lacks any meaningful permanent water stream. There are however several stream beds correspondent to intermittent ramblas. There was a swamp area in the northeast of the municipality, l'Albufereta, yet it was dried up in 1928. The municipality has two exclaves in the mainland: Monnegre (between the municipalities of San Vicente del Raspeig, Mutxamel, Busot and Xixona), and Cabeçó d'Or; the latter comprises part of the namesake Cabeçó d'Or mountain (including the summit, 1209 metres above sea level). The small island of Tabarca, 8 nautical miles to the south of the city, also belongs to the municipality. Economy Until the global recession which started in 2008, Alicante was one of the fastest-growing cities

municipal elections on 24 May 2015. He was supported by the votes from his group (6), plus those from leftist parties Guanyar Alacant (6) and Compromís (3), as well as from the centre-right party Ciudadanos (6). The People's Party (Partido Popular, PP), with only 8 elected seats, lost the majority. On April resignation due to various judicial issues and was temporarily substituted by the councilor Eva Montesinos. In the previous municipal elections of May 2011, Sonia Castedo of People's Party won the elections with an absolute majority, but resigned in December 2014 due to her involvement in several corruption scandals, at present being under investigation. Her fellow party member Miguel Valor went on to become mayor up until Echávarri's election. At the foot of the main staircase of the City Hall Building (Ayuntamiento) is the zero point (cota cero), used as the point of reference for measuring the height above or below sea level of any point in Spain, due to the marginal tidal variations of the Mediterranean sea in Alicante. Climate Alicante has mild winter temperatures, hot summers, and little rain, concentrated in equinoctial periods. Like much of the Province of Alicante itself, the city has a hot semi-arid climate (BSh) according to the Köppen climate classification. Daily variations in temperature are generally small because of the stabilising influence of the sea, although occasional periods of westerly wind can produce temperature changes of or more. Seasonal temperature variations are also relatively small, meaning that winters are mild and summers are hot. The average rainfall is per year. The cold drop means that September and October are the wettest months. Rarely, the rainfall can be torrential, reaching over in a 24-hour period, leading to severe flooding. Because of this irregularity, only 35 rainy days are observed on average per year, and the annual number of sunshine hours is 2,851. The record maximum temperature of was observed on 4 July 1994. The record minimum temperature of was recorded on 12 February 1956. The worst flooding in modern history occurred on 30 September 1997 when of rain fell within six hours. Temperatures under are very rare. Snow is unknown since 1926. Alicante enjoys one of the sunniest and warmest winter daytime temperatures in mainland Europe. Demographics The official population of Alicante in 2020 was 337,482 inhabitants and 768,194 in the metropolitan area "Alicante-Elche", and 1,863 million in 2019. As of 2020, about 20–25% of the population is foreign, most of them immigrants from North Africa, South America and Eastern Europe. Leading by Algeria (9,258), Colombia (8,525), Morocco (5,696), Argentina (5,583), Ecuador (3,800) and Venezuela (3,698) who have arrived in the previous 20 years. There are also important amounts of immigrants from other countries such as Russia (3,012), France (2,460), Ukraine (2,277), Romania (1,858), China (1,833), Cuba, (1,628), Brazil (1,231), Italy (1,164), Uruguay (1,061) and Paraguay, Bolivia, Germany, United Kingdom and Dominican Republic. There is an estimation of additional thousands coming from countries outside the EU (mostly from the African continent) that are under illegal alien status and therefore are not accounted for in official population figures. The real percentage of foreign residents is higher, since the Alicante metropolitan area is home to many Northern European retirees who are officially still residents of their own countries. A sizable number of semi-permanent residents are Spanish nationals who officially still live in Madrid, Castilla y León, the Basque country, or other areas of Spain. Transportation Alicante Airport outranks its Valencian counterpart, being among the busiest airports in Spain after Madrid, Barcelona, Palma de Mallorca and Málaga. It is connected with Madrid and Barcelona by frequent Iberia and Vueling flights, and with many Western European cities through carriers such as Ryanair, Easyjet and Jet2.com. There are also regular flights to Algeria and Russia. Alicante railway station is used by Cercanías Murcia/Alicante commuter rail services linking Alicante with suburbs and Murcia. Long-range Renfe trains run frequently to Madrid, Barcelona, and Valencia. In 2013, the Madrid–Levante high-speed rail network was extended to Alicante station, allowing AVE high-speed rail services to link to Madrid via Villena AV, Albacete-Los Llanos and Cuenca-Fernando Zóbel. Alicante Tram connects the city with outlying settlements along Costa Blanca. , electric tram-trains run up to Benidorm, and diesel trains go further to Dénia. The city has regular ferry services to the Balearic Islands and Algeria. The city is strongly fortified, with a spacious harbour. Main sights Amongst the most notable features of the city are the Castle of Santa Bárbara and the port of Alicante. The latter was the subject of bitter controversy in 2006–2007 as residents battled, successfully, to keep it from being changed into an industrial estate. The Santa Bárbara castle is situated on Mount Benacantil, overlooking the city. The tower (La Torreta) at the top, is the oldest part of the castle, while part of the lowest zone and the walls were constructed later in the 18th century. The promenade Explanada de España, lined by palm trees, is paved with 6.5 million marble floor tiles creating a wavy form, and is one of the most lovely promenades in Spain. The Promenade extends from the Port of Alicante to the Gran Vía and ends at the famous statue of Mark Hersch. For the people of Alicante, the promenade is the meeting place for the traditional Spanish paseo, or stroll along the waterfront in the evenings, and a venue for outdoor musical concerts. At the end of the promenade is a monument by the artist Bañuls of the 19th century. Barrio de la Santa Cruz is a colourful quarter of the old city, situated southwest of Santa Bárbara castle. Its small houses climb up the hill leading to the walls and the castle, through narrow streets decorated with flags and tubs of flowers. L'Ereta Park is situated on the foothills of Mount Benacantil. It runs from the Santa Bárbara castle down to the old part of Alicante and consists of several levels, routes, decks, and rest stops which offer a panoramic view overlooking the city. El Palmeral Park is one of the favourite parks of Alicante's citizens. It includes walking trails, children's playgrounds, ponds and brooks, picnic tables, and an auditorium for concerts. Just a few kilometers from Alicante on the Mediterranean Sea lies Tabarca island. What was once a haven for Barbary pirates is now a beautiful tourist attraction. Other sights include: Basilica of Santa María (14th–16th centuries), built-in Gothic style over the former main mosque. Other features include the high altar, in Rococo style, and the portal, in Baroque style, both from the 18th century. Co-cathedral of St. Nicholas of Bari (15th–18th centuries), also built over a mosque. It is the main church of Alicante and the bishop's seat. Monastery of Santa Faz (15th century), located outside the city, in Baroque style. Defence towers of the Huerta de Alicante (15th–18th centuries), built to defend against the Barbary pirates. Today some 20 towers are still extant. Baroque Casa de La Asegurada (1685), the most ancient civil building in the city. (c. XVII). Today it is home to the Museum of Contemporary Art of Alicante. Casa consistorial de Alicante (18th century), also in Baroque style. Convent of the Canónigas de San Agustín (18th century). Gravina Palace (1748–1808), nowadays hosting Gravina Museum of Fine Arts. Castle of San Fernando. There are a dozen museums in Alicante. On exhibition at the [[Archaeological Museum of Alicante],] (MARQ) are local artifacts dating from 100,000 years ago till the early 20th century. The collection is divided into different rooms representing three divisions of archaeological methodology: ground, urban and underwater archaeology, with dioramas, audiovisual and interactive zones. The archaeological museum won the European Museum of the Year Award in 2004. Gravina Museum of Fine Arts presents several paintings and sculptures from the 16th century to the 19th century. Asegurada Museum of Contemporary Art houses a major collection of twentieth-century art, composed mainly of works donated by Eusebio Sempere. Festivals The most important festival, the Bonfires of Saint John (Hogueras de San Juan / Fogueres de Sant Joan), takes place during the summer solstice. This is followed a week later by five nights of firework and pyrotechnic contests between companies on the urban beach Playa del Postiguet. Another well-known festival is Moors and Christians (Moros y Cristianos) in Altozano or San Blas district. Overall, the city boasts a year-round nightlife for the enjoyment of tourists, residents, and a large student population of the University of Alicante. The nightlife social scene tends to shift to nearby Playa de San Juan during the summer months. Every summer in Alicante, a two-month-long programme of music, theatre and dance is staged in the Paseo del Puerto. Sport

– John Gormley, Irish politician, Minister for the Environment, Community and Local Government 1960 – Chuck C. Lopez, American jockey 1960 – José Luis Rodríguez Zapatero, Spanish academic and politician, 5th Prime Minister of Spain 1960 – Bernard Rose, English director, screenwriter, and cinematographer 1960 – Tim Winton, Australian author and playwright 1961 – Barack Obama, American lawyer and politician, 44th President of the United States, Nobel Prize laureate 1962 – Roger Clemens, American baseball player and actor 1962 – Paul Reynolds, English singer-songwriter and guitarist 1963 – Keith Maurice Ellison, 30th Attorney General of Minnesota 1964 – Andrew Bartlett, Australian social worker and politician 1965 – Vishal Bhardwaj, Indian film director, screenwriter, producer, music composer and playback singer 1965 – Adam Afriyie, English businessman and politician 1965 – Dennis Lehane, American author, screenwriter, and producer 1965 – Fredrik Reinfeldt, Swedish soldier and politician, 42nd Prime Minister of Sweden 1965 – Michael Skibbe, German footballer and manager 1967 – Michael Marsh, American sprinter 1968 – Daniel Dae Kim, South Korean-American actor 1968 – Lee Mack, English comedian, actor, producer, and screenwriter 1969 – Mark Bickley, Australian footballer and coach 1969 – Max Cavalera, Brazilian singer-songwriter and guitarist 1969 – Troy O'Leary, American baseball player 1970 – John August, American director and screenwriter 1970 – Bret Baier, American journalist 1970 – Steve House, American mountaineer 1970 – Steven Jack, South African cricketer 1970 – Kate Silverton, English journalist 1971 – Bethan Benwell, English linguist, author, and academic 1971 – Jeff Gordon, American race car driver and actor 1972 – Stefan Brogren, Canadian actor, director, producer, and screenwriter 1973 – Eva Amaral, Spanish singer-songwriter and guitarist 1973 – Xavier Marchand, French swimmer 1973 – Marek Penksa, Slovak footballer 1973 – Marcos Roberto Silveira Reis, Brazilian footballer 1974 – Kily González, Argentine footballer 1975 – Andy Hallett, American actor and singer (d. 2009) 1975 – Nikos Liberopoulos, Greek footballer 1975 – Jutta Urpilainen, Finnish politician, Deputy Prime Minister of Finland 1975 – Daniella van Graas, Dutch model and actress 1976 – Paul Goldstein, American tennis player 1976 – Andrew McLeod, Australian footballer 1976 – Trevor Woodman, English rugby player and coach 1977 – Frankie Kazarian, American wrestler 1977 – Luís Boa Morte, Portuguese footballer and manager 1978 – Jeremy Adduono, Canadian ice hockey player and coach 1978 – Luke Allen, American baseball player 1978 – Kurt Busch, American race car driver 1978 – Agnė Eggerth, Lithuanian sprinter 1978 – Ibán Espadas, Spanish footballer 1978 – Jon Knott, American baseball player 1978 – Karine Legault, Canadian swimmer 1978 – Sandeep Naik, Indian politician 1978 – Siri Nordby, Norwegian footballer 1978 – Ricardo Serrano, Spanish cyclist 1978 – Per-Åge Skrøder, Norwegian ice hockey player 1978 – Satoshi Hino, Japanese voice actor 1979 – Robin Peterson, South African cricketer 1980 – Richard Dawson, English cricketer and coach 1981 – Marques Houston, American singer-songwriter, producer, and actor 1981 – Benjamin Lauth, German footballer 1981 – Abigail Spencer, American actress 1981 – Meghan, Duchess of Sussex, American actress and humanitarian, and member of British Royal Family 1983 – Greta Gerwig, American actress, producer, and screenwriter 1984 – Terry Campese, Australian rugby league player 1984 – Mardy Collins, American basketball player 1985 – Crystal Bowersox, American singer-songwriter and guitarist 1985 – Robbie Findley, American soccer player 1985 – Mark Milligan, Australian footballer 1985 – Ha Seung-jin, South Korean basketball player 1985 – Antonio Valencia, Ecuadorean footballer 1986 – Nick Augusto, American drummer 1986 – Leon Camier, English motorcycle racer 1986 – Cicinho, Brazilian footballer 1986 – Iosia Soliola, New Zealand-Samoan rugby league player 1986 – David Williams, Australian rugby league player 1987 – Jang Keun-suk, South Korean actor and singer 1987 – Marreese Speights American basketball player 1987 – Tomoya Warabino, Japanese actor 1988 – Carly Foulkes, Canadian model and actress 1988 – Kelley O'Hara, American soccer player 1989 – Tomasz Kaczor, Polish sprint canoeist 1989 – Jessica Mauboy, Australian singer-songwriter and actress 1989 – Wang Hao, Chinese chess player 1990 – Hikmet Balioğlu, Turkish footballer 1990 – Siim Tenno, Estonian footballer 1991 – Thiago Cardoso, Brazilian footballer 1991 – Izet Hajrović, Bosnian footballer 1992 – Daniele Garozzo, Italian fencer 1992 – Cole Sprouse, American actor 1992 – Dylan Sprouse, American actor 1995 – Bruna Marquezine, Brazilian actress Deaths Pre-1600 221 – Lady Zhen, Chinese empress (b. 183) 966 – Berengar II of Italy (b. 900) 1060 – Henry I of France (b. 1008) 1113 – Gertrude of Saxony, countess and regent of Holland (b. c. 1030) 1265 – Peter de Montfort, English politician (b. 1215) 1265 – Henry de Montfort (b. 1238) 1265 – Simon de Montfort, 6th Earl of Leicester, French-English soldier and politician, Lord High Steward (b. 1208) 1265 – Hugh le Despencer, 1st Baron le Despencer, English politician (b. 1223) 1266 – Eudes of Burgundy, Count of Nevers (b. 1230) 1306 – Wenceslaus III of Bohemia (b. 1289) 1345 – As-Salih Ismail, Sultan of Egypt (b. 1326) 1378 – Galeazzo II Visconti, Lord of Milan (b. c. 1320) 1430 – Philip I, Duke of Brabant (b. 1404) 1526 – Juan Sebastián Elcano, Spanish explorer and navigator (b. 1476) 1578 – Sebastian of Portugal (b. 1554) 1598 – William Cecil, 1st Baron Burghley, English academic and politician, Lord High Treasurer (b. 1520) 1601–1900 1612 – Hugh Broughton, English scholar and theologian (b. 1549) 1639 – Juan Ruiz de Alarcón, Mexican actor and playwright (b. 1581) 1718 – René Lepage de Sainte-Claire, French-Canadian founder of Rimouski (b. 1656) 1727 – Victor-Maurice, comte de Broglie, French general (b. 1647) 1741 – Andrew Hamilton, Scottish-American lawyer and politician (b. 1676) 1778 – Pierre de Rigaud, Marquis de Vaudreuil-Cavagnial, Canadian-French politician, Governor General of New France (b. 1698) 1792 – John Burgoyne, English general and politician (b. 1723) 1795 – Timothy Ruggles, American lawyer, jurist, and politician (b. 1711) 1804 – Adam Duncan, 1st Viscount Duncan, Scottish admiral (b. 1731) 1822 – Kristjan Jaak Peterson, Estonian poet and author (b. 1801) 1844 – Jacob Aall, Norwegian economist, historian, and politician (b. 1773) 1859 – John Vianney, French priest and saint (b. 1786) 1873 – Viktor Hartmann, Russian architect and painter (b. 1834) 1875 – Hans Christian Andersen, Danish novelist, short story writer, and poet (b. 1805) 1886 – Samuel J. Tilden, American lawyer and politician, 25th Governor of New York (b. 1814) 1900 – Isaac Levitan, Russian painter and educator (b. 1860) 1901–present 1914 – Jules Lemaître, French playwright and critic (b. 1853) 1919 – Dave Gregory, Australian cricketer and umpire (b. 1845) 1922 – Enver Pasha, Ottoman general and politician (b. 1881) 1932 – Alfred Henry Maurer, American painter (b. 1868) 1938 – Pearl White, American actress (b. 1889) 1940 – Ze'ev Jabotinsky, Ukrainian-American general, journalist, and activist (b. 1880) 1941 – Mihály Babits, Hungarian poet and author (b. 1883) 1942 – Alberto Franchetti, Italian composer and educator (b. 1860) 1944 – Krzysztof Kamil Baczyński, Polish soldier and poet (b. 1921) 1957 – John Cain Sr., Australian politician, 34th Premier of Victoria (b. 1882) 1957 – Washington Luís, Brazilian lawyer and politician, 13th President of Brazil (b. 1869) 1958 – Ethel Anderson, Australian poet, author, and painter (b. 1883) 1959 – József Révai, Hungarian politician, Hungarian Minister of Education (b. 1898) 1961 – Margarito Bautista, Nahua-Mexican evangelizer, theologian, and religious founder (b. 1878) 1962 – Marilyn Monroe, American model and actress (b. 1926) 1967 – Peter Smith, English cricketer (b. 1908) 1976 – Enrique Angelelli, Argentinian bishop and martyr (b. 1923) 1976 – Roy Thomson, 1st Baron Thomson of Fleet, Canadian-English publisher (b. 1894) 1977 – Edgar Adrian, 1st Baron Adrian, English physiologist and academic, Nobel Prize laureate (b. 1889) 1981 – Melvyn Douglas, American actor (b. 1901) 1982 – Bruce Goff, American architect, designed the Boston Avenue Methodist Church (b. 1904) 1985 – Don Whillans, English rock climber and mountaineer (b. 1933) 1990 – Ettore Maserati, Italian engineer and businessman (b. 1894) 1992 – Seichō Matsumoto, Japanese author (b. 1909) 1996 – Geoff Hamilton, English gardener, author, and television host (b. 1936) 1997 – Jeanne Calment, French super-centenarian; holds records for the world's substantiated longest-lived person (b. 1875) 1998 – Yury Artyukhin, Russian colonel, engineer, and astronaut (b. 1930) 1999 – Victor Mature, American actor (b. 1913) 2003 – Frederick Chapman Robbins, American pediatrician and virologist, Nobel Prize laureate (b. 1916) 2004 – Mary Sherman Morgan, American chemist and engineer (b. 1921) 2004 – Hossein Panahi (Persian: حسین پناهی), Iranian actor and poet (b. 1956) 2005 – Anatoly Larkin, Russian-American physicist and theorist (b. 1932) 2005 – Iván Szabó, Hungarian economist and politician, Minister of Finance of Hungary (b. 1934) 2007 – Lee Hazlewood, American singer-songwriter and producer (b. 1929) 2007 – Raul Hilberg, Austrian-American political scientist and historian (b. 1926) 2008 – Craig Jones, English motorcycle racer (b. 1985) 2009 – Blake Snyder, American screenwriter and producer (b. 1957) 2011 – Naoki Matsuda, Japanese footballer (b. 1977) 2012 – Johnnie Bassett, American singer-songwriter and guitarist (b. 1935) 2012 – Brian Crozier, Australian-English journalist and historian (b. 1918) 2012 – Bud Riley, American football player and coach (b. 1925) 2013 – Keith H. Basso, American anthropologist and academic (b. 1940) 2013 – Art Donovan, American football player and radio host (b. 1925) 2013 – Olavi J. Mattila, Finnish engineer and politician, Finnish Minister of Foreign Affairs (b. 1918) 2013 – Renato Ruggiero, Italian lawyer and politician, Italian Minister of Foreign Affairs (b. 1930) 2013 – Tony Snell, English lieutenant and pilot (b. 1922) 2013 – Sandy Woodward, English admiral (b. 1932) 2014 –

Regime. 1944 – The Holocaust: A tip from a Dutch informer leads the Gestapo to a sealed-off area in an Amsterdam warehouse, where they find and arrest Jewish diarist Anne Frank, her family, and four others. 1944 – The Finnish Parliament, by derogation, elected Marshal C. G. E. Mannerheim as President of Finland to replace Risto Ryti, who had resigned. 1946 – An earthquake of magnitude 8.0 hits northern Dominican Republic. One hundred are killed and 20,000 are left homeless. 1947 – The Supreme Court of Japan is established. 1964 – Civil rights movement: Civil rights workers Michael Schwerner, Andrew Goodman and James Chaney are found dead in Mississippi after disappearing on June 21. 1964 – Second Gulf of Tonkin Incident: U.S. destroyers and mistakenly report coming under attack in the Gulf of Tonkin. 1965 – The Constitution of the Cook Islands comes into force, giving the Cook Islands self-governing status within New Zealand. 1969 – Vietnam War: At the apartment of French intermediary Jean Sainteny in Paris, American representative Henry Kissinger and North Vietnamese representative Xuân Thuỷ begin secret peace negotiations. The negotiations will eventually fail. 1974 – A bomb explodes in the Italicus Express train at San Benedetto Val di Sambro, Italy, killing 12 people and wounding 22. 1975 – The Japanese Red Army takes more than 50 hostages at the AIA Building housing several embassies in Kuala Lumpur, Malaysia. The hostages include the U.S. consul and the Swedish Chargé d'affaires. The gunmen win the release of five imprisoned comrades and fly with them to Libya. 1977 – U.S. President Jimmy Carter signs legislation creating the United States Department of Energy. 1984 – The Republic of Upper Volta changes its name to Burkina Faso. 1987 – The Federal Communications Commission rescinds the Fairness Doctrine which had required radio and television stations to present controversial issues "fairly". 1995 – Operation Storm begins in Croatia. 2006 – A massacre is carried out by Sri Lankan government forces, killing 17 employees of the French INGO Action Against Hunger (known internationally as Action Contre la Faim, or ACF). 2007 – NASA's Phoenix spacecraft is launched. 2018 – Syrian civil war: The Syrian Democratic Forces (SDF) expel the Islamic State of Iraq and the Levant (ISIL) from the Iraq–Syria border, concluding the second phase of the Deir ez-Zor campaign. 2019 – Nine people are killed and 26 injured in a shooting in Dayton, Ohio. This comes only 12 hours after another mass shooting in El Paso, Texas, where 23 people were killed. 2020 – At least 220 people are killed and over 5,000 are wounded when 2,700 tons of ammonium nitrate explodes in Beirut, Lebanon. Births Pre-1600 1222 – Richard de Clare, 6th Earl of Gloucester, English soldier (d. 1262) 1281 – Külüg Khan, Emperor Wuzong of Yuan (d. 1311) 1290 – Leopold I, Duke of Austria (d. 1326) 1463 – Lorenzo di Pierfrancesco de' Medici, Florentine patron of the arts (d. 1503) 1469 – Margaret of Saxony, Duchess of Brunswick-Lüneburg (d. 1528) 1470 – Bernardo Dovizi, Italian cardinal (d. 1520) 1470 – Lucrezia de' Medici, Italian noblewoman (d. 1553) 1521 – Pope Urban VII (d. 1590) 1522 – Udai Singh II, King of Mewar (d. 1572) 1601–1900 1604 – François Hédelin, abbé d'Aubignac, French cleric and author (d. 1676) 1623 – Friedrich Casimir, Count of Hanau-Lichtenberg (1641–1680) and Hanau-Münzenberg (1642–1680) (d. 1685) 1701 – Thomas Blackwell, Scottish historian and scholar (d. 1757) 1704 – Louis d'Orléans, Duke of Orléans (d. 1752) 1719 – Johann Gottlob Lehmann, German mineralogist and geologist (d. 1767) 1721 – Granville Leveson-Gower, 1st Marquess of Stafford, English politician, Lord President of the Council (d. 1803) 1755 – Nicolas-Jacques Conté, French soldier, painter, balloonist, and inventor (d. 1805) 1792 – Percy Bysshe Shelley, English poet and playwright (d. 1822) 1805 – William Rowan Hamilton, Irish physicist, astronomer, and mathematician (d. 1865) 1821 – Louis Vuitton, French fashion designer, founded Louis Vuitton (d. 1892) 1821 – James Springer White, American religious leader, co-founded the Seventh-day Adventist Church (d. 1881) 1834 – John Venn, English mathematician and philosopher (d. 1923) 1836 – Jens Vilhelm Dahlerup, Danish architect (d. 1907) 1839 – Walter Pater, English author, critic, and academic (d. 1894) 1844 – Henri Berger, German composer and bandleader (d. 1929) 1853 – John Henry Twachtman, American painter, etcher, and academic (d. 1902) 1859 – Knut Hamsun, Norwegian novelist, poet, and playwright, Nobel Prize laureate (d. 1952) 1867 – Jake Beckley, American baseball player and coach (d. 1918) 1870 – Harry Lauder, Scottish actor and singer (d. 1950) 1871 – William Holman, English-Australian politician, 19th Premier of New South Wales (d. 1934) 1876 – Giovanni Giuriati, Italian lawyer and politician (d. 1970) 1876 – John Scaddan, Australian politician, 10th Premier of Western Australia (d. 1934) 1884 – Béla Balázs, Hungarian poet and critic (d. 1949) 1884 – Henri Cornet, French cyclist (d. 1941) 1887 – Albert M. Greenfield, Ukrainian-American businessman and philanthropist (d. 1967) 1888 – Taher Saifuddin, Indian religious leader, 51st Da'i al-Mutlaq (d. 1965) 1890 – Dolf Luque, Cuban baseball player and manager (d. 1957) 1893 – Fritz Gause, German historian and curator (d. 1973) 1898 – Ernesto Maserati, Italian race car driver and engineer (d. 1975) 1899 – Ezra Taft Benson, American religious leader, 13th President of The Church of Jesus Christ of Latter-day Saints (d. 1994) 1900 – Queen Elizabeth The Queen Mother of the United Kingdom (d. 2002) 1901–present 1901 – Louis Armstrong, American trumpet player and singer (d. 1971) 1901 – Clarence Passailaigue, Jamaican cricketer (d. 1972) 1902 – Bill Hallahan, American baseball player (d. 1981) 1904 – Witold Gombrowicz, Polish author and playwright (d. 1969) 1904 – Helen Kane, American singer and actress (d. 1966) 1904 – Joe Tate, English footballer and manager (d. 1973) 1905 – Abeid Karume, 1st President of Zanzibar (d. 1972) 1906 – Eugen Schuhmacher, German zoologist, director, and producer (d. 1973) 1908 – Kurt Eichhorn, German conductor (d. 1994) 1909 – Glenn Cunningham, American runner and academic (d. 1988) 1910 – Anita Page, American actress (d. 2008) 1910 – William Schuman, American composer and educator (d. 1992) 1910 – Hedda Sterne, Romanian-American painter and photographer (d. 2011) 1912 – Aleksandr Danilovich Aleksandrov, Russian mathematician, physicist, and mountaineer (d. 1999) 1912 – David Raksin, American composer and educator (d. 2004) 1912 – Raoul Wallenberg, Swedish architect and diplomat (d. 1947) 1913 – Wesley Addy, American actor (d. 1996) 1913 – Robert Hayden, American poet and educator (d. 1980) 1913 – Johann Niemann, German lieutenant (d. 1943) 1915 – Warren Avis, American businessman, founded Avis Rent a Car System (d. 2007) 1917 – John Fitch, American race car driver and engineer (d. 2012) 1918 – Brian Crozier, Australian-English historian and journalist (d. 2012) 1919 – Michel Déon, French novelist, playwright, and critic (d. 2016) 1920 – Helen Thomas, American journalist and author (d. 2013) 1921 – Herb Ellis, American guitarist (d. 2010) 1921 – Maurice Richard, Canadian ice hockey player and coach (d. 2000) 1922 – Mayme Agnew Clayton, American librarian (d.2006) 1922 – Luis Aponte Martínez, Puerto Rican cardinal (d. 2012) 1926 – George Irving Bell, American physicist, biologist, and mountaineer (d. 2000) 1926 – Perry Moss, American football player and coach (d. 2014) 1928 – Christian Goethals, Belgian race car driver (d. 2003) 1928 – Gerard Damiano, American director, producer, and screenwriter (d. 2008) 1928 – Nadežka Mosusova, Serbian composer 1929 – Kishore Kumar, Indian singer-songwriter and actor (d. 1987) 1929 – Vellore G. Ramabhadran, Mridangam artiste from Tamil Nadu, India (d. 2012) 1930 – Ali al-Sistani, Iranian-Iraqi cleric and scholar 1931 – Naren Tamhane, Indian cricketer (d. 2002) 1932 – Frances E. Allen, American computer scientist and academic (d. 2020) 1932 – Liang Congjie, Chinese environmentalist, founded Friends of Nature (d. 2010) 1934 – Dallas Green, American baseball player and manager (d. 2017) 1935 – Carol Arthur, American actress and producer (d. 2020) 1935 – Hans-Walter Eigenbrodt, German footballer and coach (d. 1997) 1935 – Michael J. Noonan, Irish farmer and politician, 25th Minister of Defence for Ireland (d. 2013) 1936 – Giorgos Zographos, Greek singer and actor (d. 2005) 1937 – David Bedford, English keyboard player, composer, and conductor (d. 2011) 1938 – Ellen Schrecker, American historian and academic 1939 – Jack Cunningham, Baron Cunningham of Felling, English politician, Minister for the Cabinet Office 1939 – Frankie Ford, American R&B/rock & roll singer (d. 2015) 1940 – Robin Harper, Scottish academic and politician 1940 – Larry Knechtel, American bass player and pianist (d. 2009) 1940 – Frances Stewart, English economist and academic 1940 – Timi Yuro, American singer-songwriter (d. 2004) 1941 – Martin Jarvis, English actor 1941 – Andy Smillie, English footballer 1941 – Ted Strickland, American psychologist and politician, 68th Governor of Ohio 1942 – Don S. Davis, American actor (d. 2008) 1942 – Cleon Jones, American baseball player 1942 – David Lange, New Zealand lawyer and politician, 32nd Prime Minister of New Zealand (d. 2005) 1943 – Vicente Álvarez Areces, Spanish politician, 6th President of the Principality of Asturias (d. 2019) 1943 – Barbara Saß-Viehweger, German politician, lawyer and civil law notary 1943 – Bjørn Wirkola, Norwegian ski jumper and footballer 1944 – Richard Belzer, American actor 1944 – Doudou Ndoye, Senegalese lawyer and politician 1945 – Paul McCarthy, American painter and sculptor 1945 – Alan Mulally, American engineer and businessman 1946 – Aleksei Turovski, Estonian zoologist and ethologist 1947 – Klaus Schulze, German keyboard player and songwriter 1948 – Johnny Grubb, American baseball player and coach 1949 – John Riggins, American football player, sportscaster, and actor 1950 – Caldwell Jones, American basketball player and coach (d. 2014) 1950 – N. Rangaswamy, Indian lawyer and politician, 9th Chief Minister of Puducherry 1951 – Peter Goodfellow, English geneticist and academic 1952 – James Arbuthnot, English lawyer and politician, Secretary of State for Business, Innovation and Skills 1952 – Moya Brennan, Irish singer-songwriter and harp player 1952 – Gábor Demszky, Hungarian sociologist, lawyer, and politician 1953 – Hiroyuki Usui, Japanese footballer and manager 1954 – Anatoliy Kinakh, Ukrainian engineer and politician, 11th Prime Minister of Ukraine 1954 – Steve Phillips, English footballer 1954 – François Valéry, Algerian-French singer-songwriter 1955 – Alberto Gonzales, American soldier, lawyer, and politician, 80th United States Attorney General 1955 – Billy Bob Thornton, American actor, director, and screenwriter 1957 – Rupert Farley, British actor and voice actor 1957 – Brooks D. Simpson, American historian and author 1957 – Valdis Valters, Latvian basketball player and coach 1957 – John Wark, Scottish footballer and

Elector of Brandenburg (1414–1486) Albrecht Achilles (Korvettenkapitän)

Achilles may refer to: Albrecht III Achilles, Elector

government in 2014, arguing that "the state must have a preferred model" which is "a union that is generally open to procreation". In 2020, she expressed her opposition to same-sex dancing on Strictly Come Dancing, saying: "I don't think it is what viewers of Strictly, especially families, are looking for. But that's up to the audience and the programme." Controversies In 1990, following the assassination of the Conservative politician Ian Gow by the Provisional Irish Republican Army (IRA), the Eastbourne by-election for his seat in the House of Commons was won by the Liberal Democrat David Bellotti. Widdecombe commented on the result that the IRA would be "toasting their success". In 1996, Widdecombe, as prisons minister, defended the Government's policy to shackle pregnant prisoners with handcuffs and chains when in hospital receiving prenatal care. Widdecombe told the Commons that the restrictions were needed to prevent prisoners from escaping the hospital. "Some MPs may like to think that a pregnant woman would not or could not escape. Unfortunately this is not true. The fact is that hospitals are not secure places in which to keep prisoners, and since 1990, 20 women have escaped from hospitals". Jack Straw, Labour's Home Affairs spokesman at the time, said it was "degrading and unnecessary" for a woman to be shackled at any stage. In May 1997, in the context of an inquiry into a series of prison escapes, Widdecombe remarked of former Home Secretary Michael Howard, under whom she had served, that there is "something of the night" about him. This much-quoted comment is thought to have contributed to failure of Howard's 1997 campaign for the Conservative Party leadership, a sentiment shared by both Howard himself and Widdecombe. It led to him being caricatured as a vampire, in part due to his Romanian ancestry. Extract from Crick's book In search of Michael Howard. Howard became the official party leader in 2003, and Widdecombe then stated, "I explained fully what my objections were in 1997 and I do not retract anything I said then. But ... we have to look to the future and not the past." In 2001, when Michael Portillo was running for leader of the Conservative Party, Widdecombe described him and his allies as "backbiters" due to his alleged destabilising influence under Hague. She went on to say that, should he be appointed leader, she would never give him her allegiance. This was amidst a homophobic campaign led by socially conservative critics of Portillo. In 2009, she partially defended Carol Thatcher's use of the racial slur golliwog on Any Questions?, saying: "There is a generation to whom a golliwog is merely a toy, a generation which was much endeared by its golliwogs which grew up with them on jam jars ... and there is a generation, a new generation for whom that word is deeply offensive and one does have to make I think some allowance for the fact." In December 2019, leaked WhatsApp conversations to the Plymouth Herald between her and Brexit Party activists showed Widdecombe using the term amid rumours BP campaign funding was being diverted away from Plymouth ahead of the general election of that year. Referring to throwing of one's toys out of the pram, Widdecombe said: "Yes, I threw all my toys of the pram. Bears and gollywogs flying everywhere!!". In 2019 Widdecombe defended the comments she made in a 2012 article that supported "gay conversion" therapy. She told Sky News that science may yet "provide an answer" to the question of whether people can "switch sexuality". Following Widdecombe's apparent endorsement of conversion therapy, at least one venue, the Landmark theatre in Ilfracombe, Devon, cancelled a performance of her one-woman show. Widdecombe and two other Brexit Party figures were criticised for previous appearances on the David Icke-affiliated Richie Allen Show, which has been accused of promoting Holocaust denial and antisemitic conspiracy theories about the Rothschild family and Zionism. Widdecombe appeared three times between August 2017 and April 2019 and was described as an "old friend of the show" by the host during one appearance. Widdecombe told Jewish Chronicle that she agreed to appear to discuss Brexit, and that she "had never heard of the Richie Allen Show until I agreed to go on" and distanced herself from its antisemitic content by, among other things, pointing to her membership of the Conservative Friends of Israel, B'nai B'rith event speeches, and her novel An Act of Treachery, which she said is set during the Holocaust. Widdecombe was elected as a Member of the European Parliament for the Brexit Party on 23 May 2019 in the European elections. On 3 July 2019 she used her maiden speech in Strasbourg to compare Brexit to slaves revolting against their owners and to a colonised country rising up against occupying forces, a stance which was criticised by members of both the European Parliament and the British House of Commons. Media work and appearances In 2002 she took part in the ITV programme Celebrity Fit Club. Also in 2002 she took part in a Louis Theroux television documentary, depicting her life, both in and out of politics. In March 2004 she briefly became The Guardian newspaper's agony aunt, introduced with an Emma Brockes interview. In 2005 BBC Two showed six episodes of The Widdecombe Project, an agony aunt television programme. In 2005, she appeared in a new series of Celebrity Fit Club, but this time as a panel member dispensing wisdom and advice to the celebrities taking part. Also in 2005, she presented the show Ann Widdecombe to the Rescue in which she acted as an agony aunt, dispensing advice to disputing families, couples, and others across the UK. In 2005, she also appeared in a discussion programme on Five to discuss who had been England's greatest monarch since the Norman Conquest; her choice of monarch was Charles II. She was the guest host of news quiz Have I Got News for You twice, in 2006 and 2007. Her first appearance as guest host, in 2006, was widely regarded as a success. Following her second appearance, Widdecombe vowed she would never appear on the show again because of comments made by panellist Jimmy Carr. She wrote, "His idea of wit is a barrage of filth and the sort of humour most men grow out of in their teens.... [T]here's no amount of money for which I would go through those two recording hours again. At one stage I nearly walked out." She did, however, stand by her appraisal of regular panellists Ian Hislop and Paul Merton, whom she has called "the fastest wits in showbusiness". Merton later revealed that he thought Widdecombe had been "the worst ever presenter" of the show, particularly on her second appearance where Merton claimed she "thought she was Victoria Wood". In 2007 she awarded the University Challenge trophy to the winners. In the same year, she appeared in "The Sound of Drums", the 12th episode of the third series of the science-fiction drama Doctor Who, endorsing the Master's Prime Minister campaign. Since 2007 Widdecombe has fronted a television series called Ann Widdecombe Versus, on ITV1, in which she speaks to various people about things related to her as an MP, with an emphasis on confronting those responsible for problems she wished to tackle. On 15 August 2007 she talked about prostitution, the next week about benefits and the week after that about truancy. A fourth episode was screened on 18 September 2008 in which she travelled around London and Birmingham talking to girl gangs. In 2009, Widdecombe appeared with Archbishop John Onaiyekan in an "Intelligence Squared" debate in which they defended the motion that the Catholic Church was a force for good. Arguing against the motion were Stephen Fry and Christopher Hitchens, who won the debate overall. In October 2010, she appeared on BBC One's Strictly Come Dancing, partnered by Anton du Beke, winning the support of some viewers despite low marks from the judges. After nine weeks of routines strongly flavoured by comedy the couple had received enough support in the public vote to stay in the contest. Widdecombe was eliminated from the competition on Sunday 5 December after the public vote had been combined with the judges' score; she was with Scott Maslen of EastEnders in the bottom two. In 2011 Widdecombe played the Lord Mayoress in an episode of Sooty. In 2012, Widdecombe hosted a new quiz show for the Sky Atlantic channel, called Cleverdicks. The show ran for one series with 30 one-hour episodes. It featured four contestants, usually high quality members of the UK national quiz circuit and ended with a money round for the winner of each show. In April 2012 Widdecombe presented an hour-long documentary for BBC Radio 5 Live, Drunk Again: Ann Widdecombe Investigates, looking at how the British attitude to alcohol consumption has changed over the last few years. It was revealed in October 2012, that the year's Children in Need's appeal night would feature a Strictly Come Dancing special with former show favourites Russell Grant and Widdecombe. On 4 November 2012, Widdecombe guest-hosted one episode of BBC's Songs of Praise programme about singleness. In October 2014, she appeared in the BBC series Celebrity Antiques Road Trip, partnered with expert Mark Stacey – beating Craig Revel Horwood and Catherine Southon. Widdecombe took part in a television series 24 Hours in the Past, along with Colin Jackson, Alistair McGowan, Miquita Oliver, Tyger Drew-Honey and Zoe Lucker. The four-part series was aired from 28 April–19 May 2015 on BBC One and involved the celebrities experiencing life as workers in a dustyard, coachhouse, pottery and finally as workhouse inmates in 1840s Britain. She took part in an episode of Tipping Point: Lucky Stars in 2016. In 2017, Widdecombe took part in ITV's Sugar Free Farm. In January 2018, Widdecombe was the first to enter the Celebrity Big Brother house to participate as a housemate in its twenty-first series. A controversial figure in the house, she was criticised over her comments regarding the Harvey Weinstein controversy as well as comments perceived to be anti-LGBT to her fellow housemates, most notably to drag queen Courtney Act (Shane Jenek). She finished the competition in second place as runner-up to Jenek, who became popular with viewers for challenging Widdecombe's comments. In 2019 Widdecombe appeared on the new celebrity version of The Crystal Maze, where alongside Sunetra Sarker, Wes Nelson, Matthew Wright and Nikki Sanderson, she won money for the charity Stand Up to Cancer initiative. In 2020 Widdecombe travelled to Norway for three days to visit Halden Prison, for the documentary, of The World’s Most Luxurious Prison.Stage acting career Following her retirement, Widdecombe made her stage debut, on 9 December 2011, at the Orchard Theatre, Dartford in the Christmas pantomime Snow White and the Seven Dwarfs, alongside Strictly Come Dancing judge Craig Revel Horwood. In April 2012, she had a ten-minute non-singing cameo part in Gaetano Donizetti's comic opera La Fille du Regiment, playing the Duchesse de Crackentorp. Widdecombe reprised her pantomime performance, again with Horwood, at the Swan Theatre, High Wycombe in December 2012. Widdecombe stepped in at short notice to play the Evil Queen in Snow White and the Seven Dwarfs, which was published by the Brothers Grimm in 1812, at Bridlington Spa in December 2016. She replaced Lorraine Chase, who had been injured in an accident two weeks before rehearsals were due to commence. This was Widdecombe's first appearance as a pantomime 'baddie'; a role she told the press she had always hoped for. In December 2017 Widdecombe played the Empress of China in the pantomime Aladdin at the Marina Theatre in Lowestoft. The production was the theatre's most successful pantomime to date. Personal life and family Until her retirement following the 2010 general election, Widdecombe divided her time between her two homes – one in London and one in the countryside village of Sutton Valence, Kent, in her constituency. She sold both of these properties, however, upon deciding to retire at the next general election. She shared her home in London with her widowed mother, Rita Widdecombe, until Rita's death, on 25 April 2007, aged 95. In March 2008, she purchased a house in Haytor Vale, on Dartmoor in Devon, where she retired. Her brother, Malcolm (1937–2010), who was an Anglican Canon in Bristol, retired in May 2009 and died in October 2010. Her nephew, Roger Widdecombe, is an Anglican priest. She has never married nor had any children. In November 2007 on BBC Radio 4 she described how a journalist once produced a profile on her with the assumption that she had had at least "one sexual relationship", to which Widdecombe replied: "Be careful, that's the way you get sued". When interviewer Jenni Murray asked if she had ever had a sexual relationship, Widdecombe laughed "it's nobody else's business". In a 2001 report in The Guardian it was claimed that she had a three-year romance while studying at the University of Oxford. Widdecombe herself confirmed the liaison when she appeared, in January 2018, on the UK reality show Big Brother, explaining that she had ended the romance in order to prioritise her career. Widdecombe has a fondness for cats and many other animals such as foxes, and has a section of her website - which is titled the Widdyweb - devoted to all the pet cats with which she has shared her life. Widdecombe also adopted two goats at the Buttercups Goat Sanctuary in Boughton Monchelsea near Maidstone, although one later died. In an interview, Widdecombe talked about her appreciation of music despite describing herself as "pretty well tone-deaf". Her non-political accomplishments include being a popular novelist. Widdecombe also currently writes a weekly column for the Daily Express. In January 2011 Widdecombe was President of the North of England Education Conference in Blackpool, and gave a speech there supporting selective education and opposing the ban on new grammar schools being built. She has also become a patron of The Grace Charity for M.E. Widdecombe revealed, in an April 2012 interview with Matt Chorley of The Independent, that she was writing her own autobiography, which she described as "rude about all and sundry, but an amount of truth is always necessary". Widdecombe is a Patron of the

1997 general election, she served as Shadow Health Secretary between 1998–1999 and later as Shadow Home Secretary from 1999 to 2001 under the leadership of William Hague. Leadership contest and backbenches During the 2001 Conservative leadership election, she could not find sufficient support amongst Conservative MPs for her leadership candidacy. She first supported Michael Ancram, who was eliminated in the first round, and then Kenneth Clarke, who lost in the final round. She afterwards declined to serve in Iain Duncan Smith's Shadow Cabinet (although she indicated on the television programme When Louis Met..., prior to the leadership contest, that she wished to retire to the backbenches anyway). In the 2005 leadership election, she initially supported Kenneth Clarke again. Once he was eliminated, she turned support towards Liam Fox. Following Fox's subsequent elimination, she took time to reflect before finally declaring for David Davis. She expressed reservations over the eventual winner David Cameron, feeling that he did not, like the other candidates, have a proven track record, and she was later a leading figure in parliamentary opposition to his A-List policy. At the October 2006 Conservative Conference, she was Chief Dragon in a political version of the television programme Dragons' Den, in which A-list candidates were invited to put forward a policy proposal, which was then torn apart by her team of Rachel Elnaugh, Oliver Letwin and Michael Brown. In an interview with Metro in September 2006 she stated that if Parliament were of a normal length, it was likely she would retire at the next general election. She confirmed her intention to stand down to The Observer'''s Pendennis diary in September 2007, and again in October 2007 after Prime Minister Gordon Brown quashed speculation of an autumn 2007 general election. In November 2006, she moved into the house of an Islington Labour Councillor to experience life on a council estate, her response to her experience being "Five years ago I made a speech in the House of Commons about the forgotten decents. I have spent the last week on estates in the Islington area finding out that they are still forgotten." Widdecombe was one of the 98 MPs who voted to keep their expense details secret. When the expenses claims were leaked, however, Widdecombe was described by The Daily Telegraph as one of the "saints" amongst all MPs. In May 2009, following the resignation of Michael Martin as Speaker of the House of Commons, it was reported that Widdecombe was gathering support for election as interim Speaker until the next general election. On 11 June 2009, she confirmed her bid to be the Speaker. She made it through to the second ballot but came last and was eliminated. Widdecombe retired from politics at the 2010 general election. It was rumoured that she would be a Conservative candidate for Police and Crime Commissioner in 2012, but she refused. She has since spoken about her opposition to the Coalition Government and her surprise at not being given a peerage by David Cameron. In 2016, she supported Brexit during the 2016 EU referendum and, following the resignation of David Cameron, endorsed Andrea Leadsom in her candidacy for election for the leadership of the governing Conservative Party. Return to politics – Brexit Party In 2019 she returned to politics as a candidate for the Brexit Party in the European parliament elections in South West England, which were held on 23 May, though she maintained that she would still vote for the Conservatives in the local elections that took place three weeks before. She was expelled by the Conservative Party immediately after her announcement. Widdecombe had considered joining the Brexit Party in March 2019, but joined later, in May. Widdecombe said that her decision to stand resulted from the Government's failure to deliver Britain's departure from the EU on schedule. "Both major parties need a seismic shock," she said, "to see the extent of public disgust." She subsequently won her seat. Widdecombe became a member of the European Parliament Committee on Civil Liberties, Justice and Home Affairs (LIBE). Widdecombe stood as a candidate for Plymouth Sutton and Devonport in the 2019 UK general election, coming a distant third but retaining her deposit with 5.5% of the vote. Nigel Farage said that she was told by the Conservative Party that she would be part of their Brexit negotiations if she stood down as a candidate. Political views Social issues As an MP, Widdecombe expressed socially conservative views, including opposition to abortion; it was understood during her time in frontline politics that she would not become Health Secretary as long as this involved responsibility for abortions. Although a committed Christian, she has characterised the issue as one of life and death on which her view had been the same when she was agnostic and was a member of the Society for the Protection of Unborn Children while studying at Oxford. During Parliament, Widdecombe was a member of the Pro-Life All Party Parliamentary Group, which met with SPUC over concerns the organisation's more strident approach to abortion policy could alienate Protestant and atheist supporters. She converted from the Church of England to the Roman Catholic Church following the decision of the Church of England on the ordination of women as priests. Criminal justice In her speech at the 2000 Conservative conference, she called for a zero tolerance policy of prosecution, with the punishment of £100 fines for users of cannabis. This was well received by rank-and-file Conservative delegates. Over the years, Widdecombe has expressed her support for a reintroduction of the death penalty, which was abolished in the UK in 1965. She notably spoke of her support for its reintroduction for the worst cases of murder in the aftermath of the murder of two 10-year-old girls from Soham, Cambridgeshire, in August 2002, in the Soham murders. She supported the argument that the death penalty would have deterrent value, as within five years of its abolition the national murder rate had more than doubled. Environmental and science issues She is a committed animal lover and one of the several Conservative MPs to have consistently voted for the ban on the hunting of foxes. Widdecombe was among more than 20 high-profile people who signed a letter to Members of Parliament in 2015 to oppose David Cameron's plan to amend the Hunting Act 2004. In 2007, she wrote that she did not want to belittle the issue of climate change, but was sceptical of the claims that specific actions would prevent catastrophe. In 2008, she wrote that her doubts had been "crystalised" by Nigel Lawson's book An Appeal to Reason; in 2014, she described Lawson's difficulty in getting the book published to the book-burnings in Nazi Germany. Later in 2008, Widdecombe said that the "science of climate change is robustly disputed", before stating in 2009 that "There is no climate change, hasn't anybody looked out of their window recently?" She was one of the five MPs who voted against the Climate Change Act 2008. The previous year, she voted to support a parliamentary motion supporting homeopathy, criticising the Science and Technology Committee's Report on the subject. LGBT rights Widdecombe supported the partial decriminalisation of homosexuality in 1967 in England and Wales. After that, Widdecombe consistently opposed further reforms while in Parliament. Out of the 17 parliamentary votes between 1998 and 2008 considered by the Public Whip website to concern equal rights for homosexuals, Widdecombe took the opposing position in 15 cases, not being present at the other two votes. In 1999, Widdecombe stated that "I do not think that [homosexuality] can be promoted as an equally valid lifestyle to [heterosexual] marriage, but I would say the same about irregular heterosexual arrangements." She has consistently argued against an equal age of consent for same-sex relationships, voting against a 1994 act (which would have reduced the age of consent for some male-male sexual activity from 21

follow the secular-religious viewpoints of his predecessors after his ascension. Shah Jahan had already moved away from the liberalism of Akbar, although in a token manner rather than with the intent of suppressing Hinduism, and Aurangzeb took the change still further. Though the approach to faith of Akbar, Jahangir and Shah Jahan was more syncretic than Babur, the founder of the empire, Aurangzeb's position is not so obvious. His emphasis on sharia competed, or was directly in conflict, with his insistence that zawabit or secular decrees could supersede sharia. The chief qazi refusing to crown him in 1659, Aurangzeb had a political need to present himself as a "defender of the sharia" due to popular opposition to his actions against his father and brothers. Despite claims of sweeping edicts and policies, contradictory accounts exist. Historian Katherine Brown has argued that Aurangzeb never imposed a complete ban on music. He sought to codify Hanafi law by the work of several hundred jurists, called Fatawa-e-Alamgiri. It is possible the War of Succession and continued incursions combined with Shah Jahan's spending made cultural expenditure impossible. He learnt that at Multan, Thatta, and particularly at Varanasi, the teachings of Hindu Brahmins attracted numerous Muslims. He ordered the subahdars of these provinces to demolish the schools and the temples of non-Muslims. Aurangzeb also ordered subahdars to punish Muslims who dressed like non-Muslims. The executions of the antinomian Sufi mystic Sarmad Kashani and the ninth Sikh Guru Tegh Bahadur bear testimony to Aurangzeb's religious policy; the former was beheaded on multiple accounts of heresy, the latter, according to Sikhs, because he objected to Aurangzeb's forced conversions. Taxation policy Shortly after coming to power, Aurangzeb remitted more than 80 long-standing taxes affecting all of his subjects. In 1679, Aurangzeb chose to re-impose jizya, a military tax on non-Muslim subjects in lieu of military service, after an abatement for a span of hundred years, in what was critiqued by many Hindu rulers, family-members of Aurangzeb, and Mughal court-officials. The specific amount varied with the socioeconomic status of a subject and tax-collection were often waived for regions hit by calamities; also, Brahmins, women, children, elders, the handicapped, the unemployed, the ill, and the insane were all perpetually exempted. The collectors were mandated to be Muslims. A majority of modern scholars reject that religious bigotry influenced the imposition; rather, realpolitik — economic constraints as a result of multiple ongoing battles and establishment of credence with the orthodox Ulemas — are held to be primary agents. Aurangzeb also enforced differential taxation on Hindu merchants at the rate of 5% (as against 2.5% on Muslim merchants). Policy on temples and mosques Aurangzeb issued land grants and provided funds for the maintenance of shrines of worship but also (often) ordered their destruction. Modern historians reject the thought-school of colonial and nationalist historians about these destruction being guided by religious zealotry; rather, the association of temples with sovereignty, power and authority is emphasized upon. Whilst constructing mosques were considered an act of royal duty to subjects, there are also several firmans in Aurangzeb's name, supporting temples, maths, chishti shrines, and gurudwaras, including Mahakaleshwar temple of Ujjain, a gurudwara at Dehradun, Balaji temple of Chitrakoot, Umananda Temple of Guwahati and the Shatrunjaya Jain temples, among others. Numerous new temples were built, as well. Contemporary court-chronicles mention hundreds of temple which were demolished by Aurangzab or his chieftains, upon his order. In September 1669, he ordered the destruction of Vishvanath Temple at Varanasi, which was established by Raja Man Singh, whose grandson Jai Singh was believed to have facilitated Shivaji's escape. After the Jat rebellion in Mathura (early 1670), which killed the patron of the town-mosque, Aurangzeb suppressed the rebels and ordered for the city's Kesava Deo temple to be demolished, and replaced with an Eidgah. In around 1679, he ordered destruction of several prominent temples, including those of Khandela, Udaipur, Chittor and Jodhpur, which were patronaged by rebels. The Jama Masjid at Golkunda was similarly treated, after it was found that its ruler had built it to hide revenues from the state; however desecration of mosques are rare due to their complete lack of political capital contra temples. In an order specific to Benaras, Aurangzeb invokes Sharia to declare that Hindus will be granted state-protection and temples won't be razed (but prohibits construction of any new temple); other orders to similar effect can be located. Richard Eaton, upon a critical evaluation of primary sources, counts 15 temples to have been destroyed during Aurangzeb's reign. Ian Copland and others reiterate Iqtidar Alam Khan who notes that, overall, Aurangzeb built more temples than he destroyed. Execution of opponents The first prominent execution during the long reign of Aurangzeb started with that of his brother Prince Dara Shikoh, who was accused of being influenced by Hinduism although some sources argue it was done for political reasons. Aurangzeb had his allied brother Prince Murad Baksh held for murder, judged and then executed. Aurangzeb is accused of poisoning his imprisoned nephew Sulaiman Shikoh. In 1689, the second Maratha Chhatrapati (King) Sambhaji was brutally executed by Aurangzeb. In a sham trial, he was found guilty of murder and violence, atrocities against the Muslims of Burhanpur and Bahadurpur in Berar by Marathas under his command. In 1675 the Sikh leader Guru Tegh Bahadur was arrested on orders by Aurangzeb, found guilty of blasphemy by a Qadi's court and executed. The 32nd Da'i al-Mutlaq (Absolute Missionary) of the Dawoodi Bohra sect of Musta'lī Islam Syedna Qutubkhan Qutubuddin was executed by Aurangzeb, then governor of Gujarat, for heresy; on 27 Jumadil Akhir 1056 AH (1648 AD), Ahmedabad, India. Expansion of the Mughal Empire In 1663, during his visit to Ladakh, Aurangzeb established direct control over that part of the empire and loyal subjects such as Deldan Namgyal agreed to pledge tribute and loyalty. Deldan Namgyal is also known to have constructed a Grand Mosque in Leh, which he dedicated to Mughal rule. In 1664, Aurangzeb appointed Shaista Khan subedar (governor) of Bengal. Shaista Khan eliminated Portuguese and Arakanese pirates from the region, and in 1666 recaptured the port of Chittagong from the Arakanese king, Sanda Thudhamma. Chittagong remained a key port throughout Mughal rule. In 1685, Aurangzeb dispatched his son, Muhammad Azam Shah, with a force of nearly 50,000 men to capture Bijapur Fort and defeat Sikandar Adil Shah (the ruler of Bijapur) who refused to be a vassal. The Mughals could not make any advancements upon Bijapur Fort, mainly because of the superior usage of cannon batteries on both sides. Outraged by the stalemate Aurangzeb himself arrived on 4 September 1686 and commanded the Siege of Bijapur; after eight days of fighting, the Mughals were victorious. Only one remaining ruler, Abul Hasan Qutb Shah (the Qutbshahi ruler of Golconda), refused to surrender. He and his servicemen fortified themselves at Golconda and fiercely protected the Kollur Mine, which was then probably the world's most productive diamond mine, and an important economic asset. In 1687, Aurangzeb led his grand Mughal army against the Deccan Qutbshahi fortress during the Siege of Golconda. The Qutbshahis had constructed massive fortifications throughout successive generations on a granite hill over 400 ft high with an enormous eight-mile long wall enclosing the city. The main gates of Golconda had the ability to repulse any war elephant attack. Although the Qutbshahis maintained the impregnability of their walls, at night Aurangzeb and his infantry erected complex scaffolding that allowed them to scale the high walls. During the eight-month siege the Mughals faced many hardships including the death of their experienced commander Kilich Khan Bahadur. Eventually, Aurangzeb and his forces managed to penetrate the walls by capturing a gate, and their entry into the fort led Abul Hasan Qutb Shah to surrender peacefully. Military equipment Mughal cannon making skills advanced during the 17th century. One of the most impressive Mughal cannons is known as the Zafarbaksh, which is a very rare composite cannon, that required skills in both wrought-iron forge welding and bronze-casting technologies and the in-depth knowledge of the qualities of both metals. Aurangzeb military entourage consisted of 16 cannons including the Azdaha Paikar (which, was capable of firing a 33.5 kg ordnance) and Fateh Rahber (20 feet long with Persian and Arabic inscriptions). The Ibrahim Rauza was also a famed cannon, which was well known for its multi-barrels. François Bernier, the personal physician to Aurangzeb, observed versatile Mughal gun-carriages each drawn by two horses. Despite these innovations, most soldiers used bows and arrows, the quality of sword manufacture was so poor that they preferred to use ones imported from England, and the operation of the cannons was entrusted not to Mughals but to European gunners. Other weapons used during the period included rockets, cauldrons of boiling oil, muskets and manjaniqs (stone-throwing catapults). Infantry who were later called Sepoy and who specialised in siege and artillery emerged during the reign of Aurangzeb War elephants In 1703, the Mughal commander at Coromandel, Daud Khan Panni spent 10,500 coins to purchase 30 to 50 war elephants from Ceylon. Art and culture Aurangzeb had a more austere nature than his predecessors, and greatly reduced imperial patronage of the figurative Mughal miniature. This had the effect of dispersing the court atelier to other regional courts. Being religious he encouraged Islamic calligraphy. His reign also saw the building of the Lahore Badshahi Masjid and Bibi Ka Maqbara in Aurangabad for his wife Rabia-ud-Daurani. Calligraphy The Mughal Emperor Aurangzeb is known to have patronised works of Islamic calligraphy; the demand for Quran manuscripts in the naskh style peaked during his reign. Having been instructed by Syed Ali Tabrizi, Aurangzeb was himself a talented calligrapher in naskh, evidenced by Quran manuscripts that he created. Architecture Aurangzeb was not as involved in architecture as his father. Under Aurangzeb's rule, the position of the Mughal Emperor as chief architectural patron began to diminish. However, Aurangzeb did endow some significant structures. Catherine Asher terms his architectural period as an "Islamization" of Mughal architecture. One of the earliest constructions after his accession was a small marble mosque known as the Moti Masjid (Pearl Mosque), built for his personal use in the Red Fort complex of Delhi. He later ordered the construction of the Badshahi Mosque in Lahore, which is today one of the largest mosques in the Indian subcontinent. The mosque he constructed in Srinagar is still the largest in Kashmir. Most of Aurangzeb's building activity revolved around mosques, but secular structures were not neglected. The Bibi Ka Maqbara in Aurangabad, the mausoleum of Rabia-ud-Daurani, was constructed by his eldest son Azam Shah upon Aurangzeb's decree. Its architecture displays clear inspiration from the Taj Mahal. Aurangzeb also provided and repaired urban structures like fortifications (for example a wall around Aurangabad, many of whose gates still survive), bridges, caravanserais, and gardens. Aurangzeb was more heavily involved in the repair and maintenance of previously existing structures. The most important of these were mosques, both Mughal and pre-Mughal, which he repaired more of than any of his predecessors. He patronised the dargahs of Sufi saints such as Bakhtiyar Kaki, and strived to maintain royal tombs. Textiles The textile industry in the Mughal Empire emerged very firmly during the reign of the Mughal Emperor Aurangzeb and was particularly well noted by Francois Bernier, a French physician of the Mughal Emperor. Francois Bernier writes how Karkanahs, or workshops for the artisans, particularly in textiles flourished by "employing hundreds of embroiderers, who were superintended by a master". He further writes how "Artisans manufacture of silk, fine brocade, and other fine muslins, of which are made turbans, robes of gold flowers, and tunics worn by females, so delicately fine as to wear out in one night, and cost even more if they were well embroidered with fine needlework". He also explains the different techniques employed to produce such complicated textiles such as Himru (whose name is Persian for "brocade"), Paithani (whose pattern is identical on both sides), Mushru (satin weave) and how Kalamkari, in which fabrics are painted or block-printed, was a technique that originally came from Persia. Francois Bernier provided some of the first, impressive descriptions of the designs and the soft, delicate texture of Pashmina shawls also known as Kani, which were very valued for their warmth and comfort among the Mughals, and how these textiles and shawls eventually began to find their way to France and England. Foreign relations Aurangzeb sent diplomatic missions to Mecca in 1659 and 1662, with money and gifts for the Sharif. He also sent alms in 1666 and 1672 to be distributed in Mecca and Medina. Historian Naimur Rahman Farooqi writes that, "By 1694, Aurangzeb's ardour for the Sharifs of Mecca had begun to wane; their greed and rapacity had thoroughly disillusioned the Emperor ... Aurangzeb expressed his disgust at the unethical behavior of the Sharif who appropriated all the money sent to the Hijaz for his own use, thus depriving the needy and the poor." Relations with the Uzbek Subhan Quli Khan, Balkh's Uzbek ruler was the first to recognise him in 1658 and requested for a general alliance, he worked alongside the new Mughal Emperor since 1647, when Aurangzeb was the Subedar of Balkh. Relations with the Safavid dynasty Aurangzeb received the embassy of Abbas II of Persia in 1660 and returned them with gifts. However, relations between the Mughal Empire and the Safavid dynasty were tense because the Persians attacked the Mughal army positioned near Kandahar. Aurangzeb prepared his armies in the Indus River Basin for a counteroffensive, but Abbas II's death in 1666 caused Aurangzeb to end all hostilities. Aurangzeb's rebellious son, Sultan Muhammad Akbar, sought refuge with Suleiman I of Persia, who had rescued him from the Imam of Musqat and later refused to assist him in any military adventures against Aurangzeb. Relations with the French In 1667, the French East India Company ambassadors Le Gouz and Bebert presented Louis XIV of France's letter which urged the protection of French merchants from various rebels in the Deccan. In response to the letter, Aurangzeb issued a firman allowing the French to open a factory in Surat. Relations with the Sultanate of Maldives In the 1660s, the Sultan of the Maldives, Ibrahim Iskandar I, requested help from Aurangzeb's representative, the Faujdar of Balasore. The Sultan wished to gain his support in possible future expulsions of Dutch and English trading ships, as he was concerned with how they might impact the economy of

the Kollur Mine, which was then probably the world's most productive diamond mine, and an important economic asset. In 1687, Aurangzeb led his grand Mughal army against the Deccan Qutbshahi fortress during the Siege of Golconda. The Qutbshahis had constructed massive fortifications throughout successive generations on a granite hill over 400 ft high with an enormous eight-mile long wall enclosing the city. The main gates of Golconda had the ability to repulse any war elephant attack. Although the Qutbshahis maintained the impregnability of their walls, at night Aurangzeb and his infantry erected complex scaffolding that allowed them to scale the high walls. During the eight-month siege the Mughals faced many hardships including the death of their experienced commander Kilich Khan Bahadur. Eventually, Aurangzeb and his forces managed to penetrate the walls by capturing a gate, and their entry into the fort led Abul Hasan Qutb Shah to surrender peacefully. Military equipment Mughal cannon making skills advanced during the 17th century. One of the most impressive Mughal cannons is known as the Zafarbaksh, which is a very rare composite cannon, that required skills in both wrought-iron forge welding and bronze-casting technologies and the in-depth knowledge of the qualities of both metals. Aurangzeb military entourage consisted of 16 cannons including the Azdaha Paikar (which, was capable of firing a 33.5 kg ordnance) and Fateh Rahber (20 feet long with Persian and Arabic inscriptions). The Ibrahim Rauza was also a famed cannon, which was well known for its multi-barrels. François Bernier, the personal physician to Aurangzeb, observed versatile Mughal gun-carriages each drawn by two horses. Despite these innovations, most soldiers used bows and arrows, the quality of sword manufacture was so poor that they preferred to use ones imported from England, and the operation of the cannons was entrusted not to Mughals but to European gunners. Other weapons used during the period included rockets, cauldrons of boiling oil, muskets and manjaniqs (stone-throwing catapults). Infantry who were later called Sepoy and who specialised in siege and artillery emerged during the reign of Aurangzeb War elephants In 1703, the Mughal commander at Coromandel, Daud Khan Panni spent 10,500 coins to purchase 30 to 50 war elephants from Ceylon. Art and culture Aurangzeb had a more austere nature than his predecessors, and greatly reduced imperial patronage of the figurative Mughal miniature. This had the effect of dispersing the court atelier to other regional courts. Being religious he encouraged Islamic calligraphy. His reign also saw the building of the Lahore Badshahi Masjid and Bibi Ka Maqbara in Aurangabad for his wife Rabia-ud-Daurani. Calligraphy The Mughal Emperor Aurangzeb is known to have patronised works of Islamic calligraphy; the demand for Quran manuscripts in the naskh style peaked during his reign. Having been instructed by Syed Ali Tabrizi, Aurangzeb was himself a talented calligrapher in naskh, evidenced by Quran manuscripts that he created. Architecture Aurangzeb was not as involved in architecture as his father. Under Aurangzeb's rule, the position of the Mughal Emperor as chief architectural patron began to diminish. However, Aurangzeb did endow some significant structures. Catherine Asher terms his architectural period as an "Islamization" of Mughal architecture. One of the earliest constructions after his accession was a small marble mosque known as the Moti Masjid (Pearl Mosque), built for his personal use in the Red Fort complex of Delhi. He later ordered the construction of the Badshahi Mosque in Lahore, which is today one of the largest mosques in the Indian subcontinent. The mosque he constructed in Srinagar is still the largest in Kashmir. Most of Aurangzeb's building activity revolved around mosques, but secular structures were not neglected. The Bibi Ka Maqbara in Aurangabad, the mausoleum of Rabia-ud-Daurani, was constructed by his eldest son Azam Shah upon Aurangzeb's decree. Its architecture displays clear inspiration from the Taj Mahal. Aurangzeb also provided and repaired urban structures like fortifications (for example a wall around Aurangabad, many of whose gates still survive), bridges, caravanserais, and gardens. Aurangzeb was more heavily involved in the repair and maintenance of previously existing structures. The most important of these were mosques, both Mughal and pre-Mughal, which he repaired more of than any of his predecessors. He patronised the dargahs of Sufi saints such as Bakhtiyar Kaki, and strived to maintain royal tombs. Textiles The textile industry in the Mughal Empire emerged very firmly during the reign of the Mughal Emperor Aurangzeb and was particularly well noted by Francois Bernier, a French physician of the Mughal Emperor. Francois Bernier writes how Karkanahs, or workshops for the artisans, particularly in textiles flourished by "employing hundreds of embroiderers, who were superintended by a master". He further writes how "Artisans manufacture of silk, fine brocade, and other fine muslins, of which are made turbans, robes of gold flowers, and tunics worn by females, so delicately fine as to wear out in one night, and cost even more if they were well embroidered with fine needlework". He also explains the different techniques employed to produce such complicated textiles such as Himru (whose name is Persian for "brocade"), Paithani (whose pattern is identical on both sides), Mushru (satin weave) and how Kalamkari, in which fabrics are painted or block-printed, was a technique that originally came from Persia. Francois Bernier provided some of the first, impressive descriptions of the designs and the soft, delicate texture of Pashmina shawls also known as Kani, which were very valued for their warmth and comfort among the Mughals, and how these textiles and shawls eventually began to find their way to France and England. Foreign relations Aurangzeb sent diplomatic missions to Mecca in 1659 and 1662, with money and gifts for the Sharif. He also sent alms in 1666 and 1672 to be distributed in Mecca and Medina. Historian Naimur Rahman Farooqi writes that, "By 1694, Aurangzeb's ardour for the Sharifs of Mecca had begun to wane; their greed and rapacity had thoroughly disillusioned the Emperor ... Aurangzeb expressed his disgust at the unethical behavior of the Sharif who appropriated all the money sent to the Hijaz for his own use, thus depriving the needy and the poor." Relations with the Uzbek Subhan Quli Khan, Balkh's Uzbek ruler was the first to recognise him in 1658 and requested for a general alliance, he worked alongside the new Mughal Emperor since 1647, when Aurangzeb was the Subedar of Balkh. Relations with the Safavid dynasty Aurangzeb received the embassy of Abbas II of Persia in 1660 and returned them with gifts. However, relations between the Mughal Empire and the Safavid dynasty were tense because the Persians attacked the Mughal army positioned near Kandahar. Aurangzeb prepared his armies in the Indus River Basin for a counteroffensive, but Abbas II's death in 1666 caused Aurangzeb to end all hostilities. Aurangzeb's rebellious son, Sultan Muhammad Akbar, sought refuge with Suleiman I of Persia, who had rescued him from the Imam of Musqat and later refused to assist him in any military adventures against Aurangzeb. Relations with the French In 1667, the French East India Company ambassadors Le Gouz and Bebert presented Louis XIV of France's letter which urged the protection of French merchants from various rebels in the Deccan. In response to the letter, Aurangzeb issued a firman allowing the French to open a factory in Surat. Relations with the Sultanate of Maldives In the 1660s, the Sultan of the Maldives, Ibrahim Iskandar I, requested help from Aurangzeb's representative, the Faujdar of Balasore. The Sultan wished to gain his support in possible future expulsions of Dutch and English trading ships, as he was concerned with how they might impact the economy of the Maldives. However, as Aurangzeb did not possess a powerful navy and had no interest in providing support to Ibrahim in a possible future war with the Dutch or English, the request came to nothing. Relations with the Ottoman Empire Like his father, Aurangzeb was not willing to acknowledge the Ottoman claim to the caliphate. He often supported the Ottoman Empire's enemies, extending cordial welcome to two rebel Governors of Basra, and granting them and their families a high status in the imperial service. Sultan Suleiman II's friendly postures were ignored by Aurangzeb. The Sultan urged Aurangzeb to wage holy war against Christians. Relations with the English and the Anglo-Mughal War In 1686, the Honourable East India Company, which had unsuccessfully tried to obtain a firman that would grant them regular trading privileges throughout the Mughal Empire, initiated the Anglo-Mughal War. This war ended in disaster for the English, particularly in 1689 when Aurangzeb dispatched a large fleet of grabs from Janjira that blockaded Bombay. The ships, commanded by Sidi Yaqub, were manned by Mappila (loyal to Ali Raja Ali II) and Abyssinian sailors. In 1690, realising the war was not going favourably for them, the Company sent envoys to Aurangzeb's camp to plead for a pardon. The company's envoys prostrated themselves before the emperor, agreed pay a large indemnity, and promise to refrain from such actions in the future. In September 1695, English pirate Henry Every conducted one of the most profitable pirate raids in history with his capture of a Grand Mughal grab convoy near Surat. The Indian ships had been returning home from their annual pilgrimage to Mecca when the pirate struck, capturing the Ganj-i-Sawai, reportedly the largest ship in the Muslim fleet, and its escorts in the process. When news of the capture reached the mainland, a livid Aurangzeb nearly ordered an armed attack against the English-governed city of Bombay, though he finally agreed to compromise after the Company promised to pay financial reparations, estimated at £600,000 by the Mughal authorities. Meanwhile, Aurangzeb shut down four of the English East India Company's factories, imprisoned the workers and captains (who were nearly lynched by a rioting mob), and threatened to put an end to all English trading in India until Every was captured. The Privy Council and East India Company offered a massive bounty for Every's apprehension, leading to the first worldwide manhunt in recorded history. However, Every successfully eluded capture. In 1702, Aurangzeb sent Daud Khan Panni, the Mughal Empire's Subhedar of the Carnatic region, to besiege and blockade Fort St. George for more than three months. The governor of the fort Thomas Pitt was instructed by the East India Company to sue for peace. Administrative reforms Tribute Aurangzeb received tribute from all over the Indian subcontinent, using this wealth to establish bases and fortifications in India, particularly in the Carnatic, Deccan, Bengal and Lahore. Revenue Aurangzeb's exchequer raised a record £100 million in annual revenue through various sources like taxes, customs and land revenue, et al. from 24 provinces. He had an annual yearly revenue of $450 million, more than ten times that of his contemporary Louis XIV of France. Coins Aurangzeb felt that verses from the Quran should not be stamped on coins, as done in former times, because they were constantly touched by the hands and feet of people. His coins had the name of the mint city and the year of issue on one face, and, the following couplet on other: Rebellions Traditional and newly coherent social groups in northern and western India, such as the Marathas, Rajputs, Hindu Jats, Pashtuns, and Sikhs, gained military and governing ambitions during Mughal rule, which, through collaboration or opposition, gave them both recognition and military experience. In 1669, the Hindu Jat peasants of Bharatpur around Mathura rebelled and created Bharatpur state but were defeated. In 1659, Shivaji, launched a surprise attack on the Mughal Viceroy Shaista Khan and, while waging war against Aurangzeb. Shivaji and his forces attacked the Deccan, Janjira and Surat and tried to gain control of vast territories. In 1689 Aurangzeb's armies captured Shivaji's son Sambhaji and executed him after he had sacked Burhanpur. But, the Marathas continued the fight and it actually started the terminal decline of his empire. In 1679, the Rathore clan under the command of Durgadas Rathore rebelled when Aurangzeb did not give permission to make the young Rathore prince the king and took direct command of Jodhpur. This incident caused great unrest among the Hindu Rajput rulers under Aurangzeb and led to many rebellions in Rajputana, resulting in the loss of Mughal power in the region and religious bitterness over the destruction of temples. In 1672, the Satnami, a sect concentrated in an area near Delhi, under the leadership of Bhirbhan, took over the administration of Narnaul, but they were eventually crushed upon Aurangzeb's personal intervention with very few escaping alive. In 1671, the Battle of Saraighat was fought in the easternmost regions of the Mughal Empire against the Ahom Kingdom. The Mughals led by Mir Jumla II and Shaista Khan attacked and were defeated by the Ahoms. Maharaja Chhatrasal was a medieval Indian warrior from Bundela Rajput clan, who fought against the Mughal Emperor Aurangzeb, and established his own kingdom in Bundelkhand, becoming a Maharaja of Panna. Jat rebellion In 1669, Hindu Jats began to organise a rebellion that is believed to have been caused by the re-imposition of jizya and destruction of Hindu temples in Mathura. The Jats were led by Gokula, a rebel landholder from Tilpat. By the year 1670 20,000 Jat rebels were quelled and the Mughal Army took control of Tilpat, Gokula's personal fortune amounted to 93,000 gold coins and hundreds of thousands of silver coins. Gokula was caught and executed. But the Jats once again attempted began their rebellion. Raja Ram Jat, in order to avenge his father Gokula's death, plundered Akbar's tomb of its gold, silver and fine carpets, opened Akbar's grave and dragged his bones and burned them in retaliation. Jats also shot off the tops of the minarets on the gateway to Akbar's Tomb and melted down two silver doors from the Taj Mahal. Aurangzeb appointed Mohammad Bidar Bakht as commander to crush the Jat rebellion. On 4 July 1688, Raja Ram Jat was captured and beheaded. His head was sent to Aurangzeb as proof. However, after Aurangeb's death, Jats under Badan Singh later established their independent state of Bharatpur. Mughal–Maratha Wars In 1657, while Aurangzeb attacked Golconda and Bijapur in the Deccan, the Hindu Maratha warrior, Shivaji, used guerrilla tactics to take control of three Adil Shahi forts formerly under his father's command. With these victories, Shivaji assumed de facto leadership of many independent Maratha clans. The Marathas harried the flanks of the warring Adil Shahis, gaining weapons, forts, and territory. Shivaji's small and ill-equipped army survived

used beginning about 1200 for mester de clerecía (clerical verse), typically occurring in the cuaderna vía, a stanza of four alejandrinos all with a single end-rhyme. The alejandrino was most prominent during the 13th and 14th centuries, after which time it was eclipsed by the metrically more flexible arte mayor. Juan Ruiz's Book of Good Love is one of the best-known examples of cuaderna vía, though other verse forms also appear in the work. Dutch The mid-16th-century poet Jan van der Noot pioneered syllabic Dutch alexandrines on the French model, but within a few decades Dutch alexandrines had been transformed into strict iambic hexameters with a caesura after the third foot. From Holland the accentual-syllabic alexandrine spread to other continental literatures. German Similarly, in early 17th-century Germany, Georg Rudolf Weckherlin advocated for an alexandrine with free rhythms, reflecting French practice; whereas Martin Opitz advocated for a strict accentual-syllabic iambic alexandrine in imitation of contemporary Dutch practice — and German poets followed Opitz. The alexandrine (strictly iambic with a consistent medial caesura) became the dominant long line of the German baroque. Polish Unlike many similar lines, the Polish alexandrine developed not from French verse but from Latin, specifically, the 13-syllable goliardic line: Latin goliardic: o o o s S s s | o o o s S s Polish alexandrine: o o o o o S s | o o o s S s s=unstressed syllable Though looser instances of this (nominally) 13-syllable line were occasionally used in Polish literature, it was Mikołaj Rej and Jan Kochanowski who, in the 16th century, introduced the syllabically strict line as a vehicle for major works. Czech The Czech alexandrine is a comparatively recent development, based on the French alexandrine and introduced by Karel Hynek Mácha in the 19th century. Its structure forms a halfway point between features usual in syllabic and in accentual-syllabic verse, being more highly constrained than most syllabic verse, and less so than most accentual-syllabic verse. Moreover, it equally encourages the very different rhythms of iambic hexameter and dactylic tetrameter to emerge by preserving the constants of both measures: iambic hexameter: s S s S s S | s S s S s S (s) dactylic tetrameter: S s s S s s | S s s S s s (s) Czech alexandrine: o o s S s o | o o s S s o (s) Modern references In the comic book Asterix and Cleopatra, the author Goscinny inserted a pun about alexandrines: when the Druid Panoramix ("Getafix" in the English translation)

line. The strict English alexandrine may be exemplified by a passage from Poly-Olbion, which features a rare caesural enjambment (symbolized ¦) in the first line: Ye sacred Bards, that to ¦ your harps' melodious strings Sung Heroes' deeds (the monuments of Kings) And in your dreadful verse the prophecies, The agèd world's descents, and genealogies; (lines 31-34) The Faerie Queene by Edmund Spenser, with its stanzas of eight iambic pentameter lines followed by one alexandrine, exemplifies what came to be its chief role: as a somewhat infrequent variant line in an otherwise iambic pentameter context. Alexandrines provide occasional variation in the blank verse of William Shakespeare and his contemporaries (but rarely; they constitute only about 1% of Shakespeare's blank verse). John Dryden and his contemporaries and followers likewise occasionally employed them as the second (rarely the first) line of heroic couplets, or even more distinctively as the third line of a triplet. In his Essay on Criticism, Alexander Pope denounced (and parodied) the excessive and unskillful use of this practice: Then at the last and only couplet fraught With some unmeaning thing they call a thought, A needless Alexandrine ends the song, That, like a wounded snake, drags its slow length along. (lines 354-357) Other languages Spanish The Spanish verso alejandrino is a line of 7+7 syllables, probably developed in imitation of the French alexandrine. Its structure is: o o o o o S o | o o o o o S o It was used beginning about 1200 for mester de clerecía (clerical verse), typically occurring in the cuaderna vía, a stanza of four alejandrinos all with a single end-rhyme. The alejandrino was most prominent during the 13th and 14th centuries, after which time it was eclipsed by the metrically more flexible arte mayor. Juan Ruiz's Book of Good Love is one of the best-known examples of cuaderna vía, though other verse forms also appear in the work. Dutch The mid-16th-century poet Jan van der Noot pioneered syllabic Dutch alexandrines on the French model, but within a few decades Dutch alexandrines had been transformed into strict iambic hexameters with a caesura after the third foot. From Holland the accentual-syllabic alexandrine spread to other continental literatures. German Similarly, in early 17th-century Germany, Georg Rudolf Weckherlin advocated for an alexandrine with free rhythms, reflecting French practice; whereas Martin Opitz advocated for a strict accentual-syllabic iambic alexandrine in imitation of contemporary Dutch practice — and German poets followed Opitz. The alexandrine (strictly iambic with a consistent medial caesura) became the dominant long line of the German baroque. Polish Unlike many similar lines, the Polish alexandrine developed not from French verse but from Latin, specifically, the 13-syllable goliardic line: Latin goliardic: o o o s S s s | o o o s S s Polish alexandrine: o o o o o S s | o o o s S s s=unstressed syllable Though looser instances of this (nominally) 13-syllable line were occasionally used in Polish literature, it was Mikołaj Rej and Jan Kochanowski who, in the 16th century, introduced the syllabically strict line as a vehicle for major works. Czech The Czech alexandrine is a comparatively recent development, based on the French alexandrine and introduced by Karel

II, The Korean War and well past the Vietnam War; they were made in significant numbers. In the period 1930–1945 in the Netherlands Johan van Veen developed an analogue computer to calculate and predict tidal currents when the geometry of the channels are changed. Around 1950 this idea was developed into the Deltar, an analogue computer supporting the closure of estuaries in the southwest of the Netherlands (the Delta Works). The FERMIAC was an analog computer invented by physicist Enrico Fermi in 1947 to aid in his studies of neutron transport. Project Cyclone was an analog computer developed by Reeves in 1950 for the analysis and design of dynamic systems. Project Typhoon was an analog computer developed by RCA in 1952. It consisted of over 4000 electron tubes and used 100 dials and 6000 plug-in connectors to program. The MONIAC Computer was a hydraulic model of a national economy first unveiled in 1949. Computer Engineering Associates was spun out of Caltech in 1950 to provide commercial services using the "Direct Analogy Electric Analog Computer" ("the largest and most impressive general-purpose analyzer facility for the solution of field problems") developed there by Gilbert D. McCann, Charles H. Wilts, and Bart Locanthi. Educational analog computers illustrated the principles of analog calculation. The Heathkit EC-1, a $199 educational analog computer, was made by the Heath Company, US . It was programmed using patch cords that connected nine operational amplifiers and other components. General Electric also marketed an "educational" analog computer kit of a simple design in the early 1960s consisting of a two transistor tone generators and three potentiometers wired such that the frequency of the oscillator was nulled when the potentiometer dials were positioned by hand to satisfy an equation. The relative resistance of the potentiometer was then equivalent to the formula of the equation being solved. Multiplication or division could be performed, depending on which dials were inputs and which was the output. Accuracy and resolution was limited and a simple slide rule was more accurate—however, the unit did demonstrate the basic principle. Analog computer designs were published in electronics magazines. One example is the PE Analogue Computer, published in Practical Electronics in the September 1978 edition. Another more modern hybrid computer design was published in Everyday Practical Electronics in 2002. An example described in the EPE Hybrid Computer was the flight of a VTOL aircraft like the Harrier jump jet. The altitude and speed of the aircraft were calculated by the analog part of the computer and sent to a PC via a digital microprocessor and displayed on the PC screen. In industrial process control, analog loop controllers were used to automatically regulate temperature, flow, pressure, or other process conditions. The technology of these controllers ranged from purely mechanical integrators, through vacuum-tube and solid-state devices, to emulation of analog controllers by microprocessors. Electronic analog computers The similarity between linear mechanical components, such as springs and dashpots (viscous-fluid dampers), and electrical components, such as capacitors, inductors, and resistors is striking in terms of mathematics. They can be modeled using equations of the same form. However, the difference between these systems is what makes analog computing useful. Complex systems often are not amenable to pen-and-paper analysis, and require some form of testing or simulation. Complex mechanical systems, such as suspensions for racing cars, are expensive to fabricate and hard to modify. And taking precise mechanical measurements during high-speed tests adds further difficulty. By contrast, it is very inexpensive to build an electrical equivalent of a complex mechanical system, to simulate its behavior. Engineers arrange a few operational amplifiers (op amps) and some passive linear components to form a circuit that follows the same equations as the mechanical system being simulated. All measurements can be taken directly with an oscilloscope. In the circuit, the (simulated) stiffness of the spring, for instance, can be changed by adjusting the parameters of an integrator. The electrical system is an analogy to the physical system, hence the name, but it is much less expensive than a mechanical prototype, much easier to modify, and generally safer. The electronic circuit can also be made to run faster or slower than the physical system being simulated. Experienced users of electronic analog computers said that they offered a comparatively intimate control and understanding of the problem, relative to digital simulations. Electronic analog computers are especially well-suited to representing situations described by differential equations. Historically, they were often used when a system of differential equations proved very difficult to solve by traditional means. As a simple example, the dynamics of a spring-mass system can be described by the equation , with as the vertical position of a mass , the damping coefficient, the spring constant and the gravity of Earth. For analog computing, the equation is programmed as . The equivalent analog circuit consists of two integrators for the state variables (speed) and (position), one inverter, and three potentiometers. Electronic analog computers have drawbacks: the value of the circuit's supply voltage limits the range over which the variables may vary (since the value of a variable is represented by a voltage on a particular wire). Therefore, each problem must be scaled so its parameters and dimensions can be represented using voltages that the circuit can supply —e.g., the expected magnitudes of the velocity and the position of a spring pendulum. Improperly scaled variables can have their values "clamped" by the limits of the supply voltage. Or if scaled too small, they can suffer from higher noise levels. Either problem can cause the circuit to produce an incorrect simulation of the physical system. (Modern digital simulations are much more robust to widely varying values of their variables, but are still not entirely immune to these concerns: floating-point digital calculations support a huge dynamic range, but can suffer from imprecision if tiny differences of huge values lead to numerical instability.) The precision of the analog computer readout was limited chiefly by the precision of the readout equipment used, generally three or four significant figures. (Modern digital simulations are much better in this area. Digital arbitrary-precision arithmetic can provide any desired degree of precision.) However, in most cases the precision of an analog computer is absolutely sufficient given the uncertainty of the model characteristics and its technical parameters. Many small computers dedicated to specific computations are still part of industrial regulation equipment, but from the 1950s to the 1970s, general-purpose analog computers were the only systems fast enough for real time simulation of dynamic systems, especially in the aircraft, military and aerospace field. In the 1960s, the major manufacturer was Electronic Associates of Princeton, New Jersey, with its 231R Analog Computer (vacuum tubes, 20 integrators) and subsequently its EAI 8800 Analog Computer (solid state operational amplifiers, 64 integrators). Its challenger was Applied Dynamics of Ann Arbor, Michigan. Although the basic technology for analog computers is usually operational amplifiers (also called "continuous current amplifiers" because they have no low frequency limitation), in the 1960s an attempt was made in the French ANALAC computer to use an alternative technology: medium frequency carrier and non dissipative reversible circuits. In the 1970s every big company and administration concerned with problems in dynamics had a big analog computing center, for example: In the US: NASA (Huntsville, Houston), Martin Marietta (Orlando), Lockheed, Westinghouse, Hughes Aircraft In Europe: CEA (French Atomic Energy Commission), MATRA, Aérospatiale, BAC (British Aircraft Corporation). Analog–digital hybrids Analog computing devices are fast, digital computing devices are more versatile and accurate, so the idea is to combine the two processes for the best efficiency. An example of such hybrid elementary device is the hybrid multiplier where one input is an analog signal, the other input is a digital signal and the output is analog. It acts as an analog potentiometer upgradable digitally. This kind of hybrid technique is mainly used for fast dedicated real time computation when computing time is very critical as signal processing for radars and generally for controllers in embedded systems. In the early 1970s analog computer manufacturers tried to tie together their analog computer with a digital computer to get the advantages of the two techniques. In such systems, the digital computer controlled the analog computer, providing initial set-up, initiating multiple analog runs, and automatically feeding and collecting data. The digital computer may also participate to the calculation itself using analog-to-digital and digital-to-analog converters. The largest manufacturer of hybrid computers was Electronics Associates. Their hybrid computer model 8900 was made of a digital computer and one or more analog consoles. These systems were mainly dedicated to large projects such as the Apollo program and Space Shuttle at NASA, or Ariane in Europe, especially during the integration step where at the beginning everything is simulated, and progressively real components replace their simulated part. Only one company was known as offering general commercial computing services on its hybrid computers, CISI of France, in the 1970s. The best reference in this field is the 100,000 simulation runs for each certification of the automatic landing systems of Airbus and Concorde aircraft. After 1980, purely digital computers progressed more and more rapidly and were fast enough to compete with analog computers. One key to the speed of analog computers was their fully parallel computation, but this was also a limitation. The more equations required for a problem, the more analog components were needed, even when the problem wasn't time critical. "Programming" a problem meant interconnecting the analog operators; even with a removable wiring panel this was not very versatile. Today there are no more big hybrid computers, but only hybrid components. Implementations Mechanical analog computers While a wide variety of mechanisms have been developed throughout history, some stand out because of their theoretical importance, or because they were manufactured in significant quantities. Most practical mechanical analog computers of any significant complexity used rotating shafts to carry variables from one mechanism to another. Cables and pulleys were used in a Fourier synthesizer, a tide-predicting machine, which summed the individual harmonic components. Another category, not nearly as well known, used rotating shafts only for input and output, with precision racks and pinions. The racks were connected to linkages that performed the computation. At least one U.S. Naval sonar fire control computer of the later 1950s, made by Librascope, was of this type, as was the principal computer in the Mk. 56 Gun Fire Control System. Online, there is a remarkably clear illustrated reference (OP 1140) that describes the fire control computer mechanisms. For adding and subtracting, precision miter-gear differentials were in common use in some computers; the Ford Instrument Mark I Fire Control Computer contained about 160 of them. Integration with respect to another variable was done by a rotating disc driven by one variable. Output came from a pick-off device (such as a wheel) positioned at a radius on the disc proportional to the second variable. (A carrier with a pair of steel balls supported by small rollers worked especially well. A roller, its axis parallel to the disc's surface, provided the output. It was held against the pair of balls by a spring.) Arbitrary functions of one variable were provided by cams, with gearing to convert follower movement to shaft rotation. Functions of two variables were provided by three-dimensional cams. In one good design, one of the variables rotated the cam. A hemispherical follower moved its carrier on a pivot axis

lead to numerical instability.) The precision of the analog computer readout was limited chiefly by the precision of the readout equipment used, generally three or four significant figures. (Modern digital simulations are much better in this area. Digital arbitrary-precision arithmetic can provide any desired degree of precision.) However, in most cases the precision of an analog computer is absolutely sufficient given the uncertainty of the model characteristics and its technical parameters. Many small computers dedicated to specific computations are still part of industrial regulation equipment, but from the 1950s to the 1970s, general-purpose analog computers were the only systems fast enough for real time simulation of dynamic systems, especially in the aircraft, military and aerospace field. In the 1960s, the major manufacturer was Electronic Associates of Princeton, New Jersey, with its 231R Analog Computer (vacuum tubes, 20 integrators) and subsequently its EAI 8800 Analog Computer (solid state operational amplifiers, 64 integrators). Its challenger was Applied Dynamics of Ann Arbor, Michigan. Although the basic technology for analog computers is usually operational amplifiers (also called "continuous current amplifiers" because they have no low frequency limitation), in the 1960s an attempt was made in the French ANALAC computer to use an alternative technology: medium frequency carrier and non dissipative reversible circuits. In the 1970s every big company and administration concerned with problems in dynamics had a big analog computing center, for example: In the US: NASA (Huntsville, Houston), Martin Marietta (Orlando), Lockheed, Westinghouse, Hughes Aircraft In Europe: CEA (French Atomic Energy Commission), MATRA, Aérospatiale, BAC (British Aircraft Corporation). Analog–digital hybrids Analog computing devices are fast, digital computing devices are more versatile and accurate, so the idea is to combine the two processes for the best efficiency. An example of such hybrid elementary device is the hybrid multiplier where one input is an analog signal, the other input is a digital signal and the output is analog. It acts as an analog potentiometer upgradable digitally. This kind of hybrid technique is mainly used for fast dedicated real time computation when computing time is very critical as signal processing for radars and generally for controllers in embedded systems. In the early 1970s analog computer manufacturers tried to tie together their analog computer with a digital computer to get the advantages of the two techniques. In such systems, the digital computer controlled the analog computer, providing initial set-up, initiating multiple analog runs, and automatically feeding and collecting data. The digital computer may also participate to the calculation itself using analog-to-digital and digital-to-analog converters. The largest manufacturer of hybrid computers was Electronics Associates. Their hybrid computer model 8900 was made of a digital computer and one or more analog consoles. These systems were mainly dedicated to large projects such as the Apollo program and Space Shuttle at NASA, or Ariane in Europe, especially during the integration step where at the beginning everything is simulated, and progressively real components replace their simulated part. Only one company was known as offering general commercial computing services on its hybrid computers, CISI of France, in the 1970s. The best reference in this field is the 100,000 simulation runs for each certification of the automatic landing systems of Airbus and Concorde aircraft. After 1980, purely digital computers progressed more and more rapidly and were fast enough to compete with analog computers. One key to the speed of analog computers was their fully parallel computation, but this was also a limitation. The more equations required for a problem, the more analog components were needed, even when the problem wasn't time critical. "Programming" a problem meant interconnecting the analog operators; even with a removable wiring panel this was not very versatile. Today there are no more big hybrid computers, but only hybrid components. Implementations Mechanical analog computers While a wide variety of mechanisms have been developed throughout history, some stand out because of their theoretical importance, or because they were manufactured in significant quantities. Most practical mechanical analog computers of any significant complexity used rotating shafts to carry variables from one mechanism to another. Cables and pulleys were used in a Fourier synthesizer, a tide-predicting machine, which summed the individual harmonic components. Another category, not nearly as well known, used rotating shafts only for input and output, with precision racks and pinions. The racks were connected to linkages that performed the computation. At least one U.S. Naval sonar fire control computer of the later 1950s, made by Librascope, was of this type, as was the principal computer in the Mk. 56 Gun Fire Control System. Online, there is a remarkably clear illustrated reference (OP 1140) that describes the fire control computer mechanisms. For adding and subtracting, precision miter-gear differentials were in common use in some computers; the Ford Instrument Mark I Fire Control Computer contained about 160 of them. Integration with respect to another variable was done by a rotating disc driven by one variable. Output came from a pick-off device (such as a wheel) positioned at a radius on the disc proportional to the second variable. (A carrier with a pair of steel balls supported by small rollers worked especially well. A roller, its axis parallel to the disc's surface, provided the output. It was held against the pair of balls by a spring.) Arbitrary functions of one variable were provided by cams, with gearing to convert follower movement to shaft rotation. Functions of two variables were provided by three-dimensional cams. In one good design, one of the variables rotated the cam. A hemispherical follower moved its carrier on a pivot axis parallel to that of the cam's rotating axis. Pivoting motion was the output. The second variable moved the follower along the axis of the cam. One practical application was ballistics in gunnery. Coordinate conversion from polar to rectangular was done by a mechanical resolver (called a "component solver" in US Navy fire control computers). Two discs on a common axis positioned a sliding block with pin (stubby shaft) on it. One disc was a face cam, and a follower on the block in the face cam's groove set the radius. The other disc, closer to the pin, contained a straight slot in which the block moved. The input angle rotated the latter disc (the face cam disc, for an unchanging radius, rotated with the other (angle) disc; a differential and a few gears did this correction). Referring to the mechanism's frame, the location of the pin corresponded to the tip of the vector represented by the angle and magnitude inputs. Mounted on that pin was a square block. Rectilinear-coordinate outputs (both sine and cosine, typically) came from two slotted plates, each slot fitting on the block just mentioned. The plates moved in straight lines, the movement of one plate at right angles to that of the other. The slots were at right angles to the direction of movement. Each plate, by itself, was like a Scotch yoke, known to steam engine enthusiasts. During World War II, a similar mechanism converted rectilinear to polar coordinates, but it was not particularly successful and was eliminated in a significant redesign (USN, Mk. 1 to Mk. 1A). Multiplication was done by mechanisms based on the geometry of similar right triangles. Using the trigonometric terms for a right triangle, specifically opposite, adjacent, and hypotenuse, the adjacent side was fixed by construction. One variable changed the magnitude of the opposite side. In many cases, this variable changed sign; the hypotenuse could coincide with the adjacent side (a zero input), or move beyond the adjacent side, representing a sign change. Typically, a pinion-operated rack moving parallel to the (trig.-defined) opposite side would position a slide with a slot coincident with the hypotenuse. A pivot on the rack let the slide's angle change freely. At the other end of the slide (the angle, in trig. terms), a block on a pin fixed to the frame defined the vertex between the hypotenuse and the adjacent side. At any distance along the adjacent side, a line perpendicular to it intersects the hypotenuse at a particular point. The distance between that point and the adjacent side is some fraction that is the product of 1 the distance from the vertex, and 2 the magnitude of the opposite side. The second input variable in this type of multiplier positions a slotted plate perpendicular to the adjacent side. That slot contains a block, and that block's position in its slot is determined by another block right next to it. The latter slides along the hypotenuse, so the two blocks are positioned at a distance from the (trig.) adjacent side by an amount proportional to the product. To provide the product as an output, a third element, another slotted plate, also moves parallel to the (trig.) opposite side of the theoretical triangle. As usual, the slot is perpendicular to the direction of movement. A block in its slot, pivoted to the hypotenuse block positions it. A special type of integrator, used at a point where only moderate accuracy was needed, was based on a steel ball, instead of a disc. It had two inputs, one to rotate the ball, and the other to define the angle of the ball's rotating axis. That axis was always in a plane that contained the axes of two movement pick-off rollers, quite similar to the mechanism of a rolling-ball computer mouse (in that mechanism, the pick-off rollers were roughly the same diameter as the ball). The pick-off roller axes were at right angles. A pair of rollers "above" and "below" the pick-off plane were mounted in rotating holders that were geared together. That gearing was driven by the angle input, and established the rotating axis of the ball. The other input rotated the "bottom" roller to make the ball rotate. Essentially, the whole mechanism, called a component integrator, was a variable-speed drive with one motion input and two outputs, as well as an angle input. The angle input varied the ratio (and direction) of coupling between the "motion" input and the outputs according to the sine and cosine of the input angle. Although they did not accomplish any computation, electromechanical position servos were essential in mechanical analog computers of the "rotating-shaft" type for providing operating torque to the inputs of subsequent computing mechanisms, as well as driving output data-transmission devices such as large torque-transmitter synchros in naval computers. Other readout mechanisms, not directly part of the computation, included internal odometer-like counters with interpolating drum dials for indicating internal variables, and mechanical multi-turn limit stops. Considering that accurately controlled rotational speed in analog fire-control computers was a basic element of their accuracy, there was a motor with its average speed controlled by a balance wheel, hairspring, jeweled-bearing differential, a twin-lobe cam, and spring-loaded contacts (ship's AC power frequency was not necessarily accurate, nor dependable enough, when these computers were designed). Electronic analog computers Electronic analog computers typically have front panels with numerous jacks (single-contact sockets) that permit patch cords (flexible wires with plugs at both ends) to create the interconnections that define the problem setup. In addition, there are precision high-resolution potentiometers (variable resistors) for setting up (and, when needed, varying) scale factors. In addition, there is usually a zero-center analog pointer-type meter for modest-accuracy voltage measurement. Stable, accurate voltage sources provide known magnitudes. Typical electronic analog computers contain anywhere from a few to a hundred or more operational amplifiers ("op amps"), named because they perform mathematical operations. Op amps are a particular type of feedback amplifier with very high gain and stable input (low and stable offset). They are always used with precision feedback components that, in operation, all but cancel out the currents arriving from input components. The majority of op amps in a representative setup are summing amplifiers, which add and subtract analog voltages, providing the result at their output jacks. As well, op amps with capacitor feedback are usually included in a setup; they integrate the sum of their inputs with respect to time. Integrating with respect to another variable is the nearly exclusive province of mechanical analog integrators; it is almost never done in electronic analog computers. However, given that a problem solution does not change with time, time can serve as one of the variables. Other computing elements include analog multipliers, nonlinear function generators, and analog comparators. Electrical elements such as inductors and capacitors used in electrical analog computers had to be carefully manufactured to reduce non-ideal effects. For example, in the construction of AC power network analyzers, one motive for using higher frequencies for the calculator (instead of the actual power frequency) was that higher-quality inductors could be more easily made. Many general-purpose analog computers avoided the use of inductors entirely, re-casting the problem in a form that could be solved using only resistive and capacitive elements, since high-quality capacitors are relatively easy to make. The use of electrical properties in analog computers means that calculations are normally performed in real time (or faster), at a speed determined mostly by the frequency response of the operational amplifiers and other computing elements. In the history of electronic analog computers, there were some special high-speed types. Nonlinear functions and calculations can be constructed to a limited precision (three or four digits) by designing function generators—special circuits of various combinations of resistors and diodes to provide the nonlinearity. Typically, as the input voltage increases, progressively more diodes conduct. When compensated for temperature, the forward voltage drop of a transistor's base-emitter junction can provide a usably accurate logarithmic or exponential function. Op amps scale the output voltage so that it is usable with the rest of the computer. Any physical process that models some computation can be

spectrum Digital audio, representation of sound in a form processed and/or stored by computers or digital electronics Audio, audible content (media) in audio production and publishing Semantic audio, extraction of symbols or meaning from audio Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective Audio equipment Entertainment AUDIO (group),

Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective Audio equipment Entertainment AUDIO (group), an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 Audio (album), an album by the Blue

the measure of both angles and time—derive from Babylonian astronomy and time-keeping. Influenced by the Sumerians, the ancient Babylonians divided the Sun's perceived motion across the sky over the course of one full day into 360 degrees. Each degree was subdivided into 60 minutes and each minute into 60 seconds. Thus, one Babylonian degree was equal to four minutes in modern terminology, one Babylonian minute to four modern seconds, and one Babylonian second to (approximately 0.067) of a modern second. Uses Astronomy Since antiquity, the arcminute and arcsecond have been used in astronomy: in the ecliptic coordinate system as latitude (β) and longitude (λ); in the horizon system as altitude (Alt) and azimuth (Az); and in the equatorial coordinate system as declination (δ). All are measured in degrees, arcminutes, and arcseconds. The principal exception is right ascension (RA) in equatorial coordinates, which is measured in time units of hours, minutes, and seconds. The arcsecond is also often used to describe small astronomical angles such as the angular diameters of planets (e.g. the angular diameter of Venus which varies between 10″ and 60″); the proper motion of stars; the separation of components of binary star systems; and parallax, the small change of position of a star or solar system body as the Earth revolves about the Sun. These small angles may also be written in milliarcseconds (mas), or thousandths of an arcsecond. The unit of distance called the parsec, abbreviated from the parallax angle of one arc second, was developed for such parallax measurements. The distance from the Sun to a celestial object is the reciprocal of the angle, measured in arcseconds, of the object's apparent movement caused by parallax. The European Space Agency's astrometric satellite Gaia, launched in 2013, can approximate star positions to 7 microarcseconds (µas). Apart from the Sun, the star with the largest angular diameter from Earth is R Doradus, a red giant with a diameter of 0.05″. Because of the effects of atmospheric blurring, ground-based telescopes will smear the image of a star to an angular diameter of about 0.5″; in poor conditions this increases to 1.5″ or even more. The dwarf planet Pluto has proven difficult to resolve because its angular diameter is about 0.1″. Space telescopes are not affected by the Earth's atmosphere but are diffraction limited. For example, the Hubble Space Telescope can reach an angular size of stars down to about 0.1″. Techniques exist for improving seeing on the ground. Adaptive optics, for example, can produce images around 0.05″ on a 10 m class telescope. Cartography Minutes (′) and seconds (″) of arc are also used in cartography and navigation. At sea level one minute of arc along the equator equals exactly one geographical mile along the Earth's equator or approximately . A second of arc, one sixtieth of this amount, is roughly . The exact distance varies along meridian arcs or any other great circle arcs because the figure of the Earth is slightly oblate (bulges a third of a percent at the equator). Positions are traditionally given using degrees, minutes, and seconds of arcs for latitude, the arc north or south of the equator, and for longitude, the arc east or west of the Prime Meridian. Any position on or above the Earth's reference ellipsoid can be precisely given with this method. However, when it is inconvenient to use base-60 for minutes and seconds, positions are frequently expressed as decimal fractional degrees to an equal amount of precision. Degrees given to three decimal places ( of a degree) have about the precision of degrees-minutes-seconds ( of a degree) and specify locations within about . For navigational purposes positions are given in degrees and decimal minutes, for instance The Needles lighthouse is at 50º 39.734’N 001º 35.500’W. Property cadastral surveying Related to cartography, property boundary surveying using the metes and bounds system and cadastral surveying relies on fractions of a degree to describe property lines' angles in reference to cardinal directions. A boundary "mete" is described with a beginning reference point, the cardinal direction North or South followed by an angle less than 90 degrees and a second cardinal direction, and a linear distance. The boundary runs the specified linear distance from the beginning point, the direction of the distance being determined by rotating the first cardinal direction the specified angle toward the second cardinal direction. For example, North 65° 39′ 18″ West 85.69 feet would describe a line running from the starting point 85.69 feet in a direction 65° 39′ 18″ (or 65.655°) away from north toward the west. Firearms The arcminute is commonly found in the firearms industry and literature, particularly concerning the precision of rifles, though the industry refers to it as minute of angle (MOA). It is especially popular as a unit of measurement with shooters familiar with the imperial measurement system because 1 MOA subtends a circle with a diameter of 1.047 inches (which is often rounded to just 1 inch) at 100 yards ( at or 2.908 cm at 100 m), a traditional distance on American target ranges. The subtension is linear with the distance, for example, at 500 yards, 1 MOA subtends 5.235 inches, and at 1000 yards 1 MOA subtends 10.47 inches. Since many modern telescopic sights are adjustable in half (), quarter () or eighth () MOA increments, also

Property cadastral surveying Related to cartography, property boundary surveying using the metes and bounds system and cadastral surveying relies on fractions of a degree to describe property lines' angles in reference to cardinal directions. A boundary "mete" is described with a beginning reference point, the cardinal direction North or South followed by an angle less than 90 degrees and a second cardinal direction, and a linear distance. The boundary runs the specified linear distance from the beginning point, the direction of the distance being determined by rotating the first cardinal direction the specified angle toward the second cardinal direction. For example, North 65° 39′ 18″ West 85.69 feet would describe a line running from the starting point 85.69 feet in a direction 65° 39′ 18″ (or 65.655°) away from north toward the west. Firearms The arcminute is commonly found in the firearms industry and literature, particularly concerning the precision of rifles, though the industry refers to it as minute of angle (MOA). It is especially popular as a unit of measurement with shooters familiar with the imperial measurement system because 1 MOA subtends a circle with a diameter of 1.047 inches (which is often rounded to just 1 inch) at 100 yards ( at or 2.908 cm at 100 m), a traditional distance on American target ranges. The subtension is linear with the distance, for example, at 500 yards, 1 MOA subtends 5.235 inches, and at 1000 yards 1 MOA subtends 10.47 inches. Since many modern telescopic sights are adjustable in half (), quarter () or eighth () MOA increments, also known as clicks, zeroing and adjustments are made by counting 2, 4 and 8 clicks per MOA respectively. For example, if the point of impact is 3 inches high and 1.5 inches left of the point of aim at 100 yards (which for instance could be measured by using a spotting scope with a calibrated reticle), the scope needs to be adjusted 3 MOA down, and 1.5 MOA right. Such adjustments are trivial when the scope's adjustment dials have a MOA scale printed on them, and even figuring the right number of clicks is relatively easy on scopes that click in fractions of MOA. This makes zeroing and adjustments much easier: To adjust a MOA scope 3 MOA down and 1.5 MOA right, the scope needs to be adjusted 3 × 2 = 6 clicks down and 1.5 x 2 = 3 clicks right To adjust a MOA scope 3 MOA down and 1.5 MOA right, the scope needs to be adjusted 3 x 4 = 12 clicks down and 1.5 × 4 = 6 clicks right To adjust a MOA scope 3 MOA down and 1.5 MOA right, the scope needs to be adjusted 3 x 8 = 24 clicks down and 1.5 × 8 = 12 clicks right Another common system of measurement in firearm scopes is the milliradian (mrad). Zeroing an mrad based scope is easy for users familiar with base ten systems. The most common adjustment value in mrad based scopes is mrad (which approximates MOA). To adjust a mrad scope 0.9 mrad down and 0.4 mrad right, the scope needs to be adjusted 9 clicks down and 4 clicks right (which equals approximately 3 and 1.5 MOA respectively). One thing to be aware of is that some MOA scopes, including some higher-end models, are calibrated such that an adjustment of 1 MOA on the scope knobs corresponds to exactly 1 inch of impact adjustment on a target at 100 yards, rather than the mathematically correct 1.047 inches. This is commonly known as the Shooter's MOA (SMOA) or Inches Per Hundred Yards (IPHY). While the difference between one true MOA and one SMOA is less than half of an inch even at 1000 yards, this error compounds significantly on longer range shots that may require adjustment upwards of 20–30 MOA to compensate for the bullet drop. If a shot requires an adjustment of 20 MOA or more, the difference between true MOA and SMOA will add up to 1 inch or more. In competitive target shooting, this might mean the difference between a hit and a miss. The physical group size equivalent to m minutes of arc can be calculated as follows: group size = tan() × distance. In the example previously given, for 1 minute of arc, and substituting 3,600 inches for 100 yards, 3,600 tan() ≈ 1.047 inches. In metric units 1 MOA at 100 metres ≈ 2.908 centimetres. Sometimes, a precision-oriented firearm's performance will be measured in MOA.

only a small part. After 1957, however, his figurative paintings were equally as present as his sculptures. The almost monochrome paintings of his late work do not refer to any other artistic styles of modernity. Early life Giacometti was born in Borgonovo, Switzerland, the eldest of four children of Giovanni Giacometti, a well-known post-Impressionist painter, and Annetta Giacometti-Stampa. He was a descendant of Protestant refugees escaping the inquisition. Coming from an artistic background, he was interested in art from an early age. Alberto attended the Geneva School of Fine Arts. His brothers Diego (1902–1985) and Bruno (1907–2012) would go on to become artists and architects as well. Additionally, his cousin Zaccaria Giacometti, later professor of constitutional law and chancellor of the University of Zurich, grew up together with them, having been orphaned at the age of 12 in 1905. Career In 1922, he moved to Paris to study under the sculptor Antoine Bourdelle, an associate of Rodin. It was there that Giacometti experimented with Cubism and Surrealism and came to be regarded as one of the leading Surrealist sculptors. Among his associates were Miró, Max Ernst, Picasso, Bror Hjorth, and Balthus. Between 1936 and 1940, Giacometti concentrated his sculpting on the human head, focusing on the sitter's gaze. He preferred models he was close to—his sister and the artist Isabel Rawsthorne (then known as Isabel Delmer). This was followed by a phase in which his statues of Isabel became stretched out; her limbs elongated. Obsessed with creating his sculptures exactly as he envisioned through his unique view of reality, he often carved until they were as thin as nails and reduced to the size of a pack of cigarettes, much to his consternation. A friend of his once said that if Giacometti decided to sculpt you, "he would make your head look like the blade of a knife". During World War II, Giacometti took refuge in Switzerland. There, in 1946, he met Annette Arm, a secretary for the Red Cross. They married in 1949. After his marriage his tiny sculptures became larger, but the larger they grew, the thinner they became. For the remainder of Giacometti's life, Annette was his main female model. His paintings underwent a parallel procedure. The figures appear isolated and severely attenuated, as the result of continuous reworking. He frequently revisited his subjects: one of his favourite models was his younger brother Diego. Later years In 1958 Giacometti was asked to create a monumental sculpture for the Chase Manhattan Bank building in New York, which was beginning construction. Although he had for many years "harbored an ambition to create work for a public square", he "had never set foot in New York, and knew nothing about life in a rapidly evolving metropolis. Nor had he ever laid eyes on an actual skyscraper", according to his biographer James Lord. Giacometti's work on the project resulted in the four figures of standing women—his largest sculptures—entitled Grande femme debout I through IV (1960). The commission was never completed, however, because Giacometti was unsatisfied by the relationship between the sculpture and the site, and abandoned the project. In 1962, Giacometti was awarded the grand prize for sculpture at the Venice Biennale, and the award brought with it worldwide fame. Even when he had achieved popularity and his work was in demand, he still reworked models, often destroying them or setting them aside to be returned to years later. The prints produced by Giacometti are often overlooked but the catalogue raisonné, Giacometti – The Complete Graphics and 15 Drawings by Herbert Lust (Tudor 1970), comments on their impact and gives details of the number of copies of each print. Some of his most important images were in editions of only 30 and many were described as rare in 1970. In his later years Giacometti's works were shown in a number of large exhibitions throughout Europe. Riding a wave of international popularity, and despite his declining health, he traveled to the United States in 1965 for an exhibition of his works at the Museum of Modern Art in New York. As his last work he prepared the text for the book Paris sans fin, a sequence of 150 lithographs containing memories of all the places where he had lived. Death Giacometti died in 1966 of heart disease (pericarditis) and Chronic Obstructive Pulmonary Disease at the Kantonsspital in Chur, Switzerland. His body was returned to his birthplace in Borgonovo, where he was interred close to his parents. With no children, Annette Giacometti became the sole holder of his property rights. She worked to collect a full listing of authenticated works by her late husband, gathering documentation on the location and manufacture of his works and working to

Giacometti's works to a top auctioneer, Jacques Tajan, who was also convicted. Both were ordered to pay €850,000 to the Alberto and Annette Giacometti Foundation. Artistic analysis Regarding Giacometti's sculptural technique and according to the Metropolitan Museum of Art: "The rough, eroded, heavily worked surfaces of Three Men Walking (II), 1949, typify his technique. Reduced, as they are, to their very core, these figures evoke lone trees in winter that have lost their foliage. Within this style, Giacometti would rarely deviate from the three themes that preoccupied him—the walking man; the standing, nude woman; and the bust—or all three, combined in various groupings." In a letter to Pierre Matisse, Giacometti wrote: "Figures were never a compact mass but like a transparent construction". In the letter, Giacometti writes about how he looked back at the realist, classical busts of his youth with nostalgia, and tells the story of the existential crisis which precipitated the style he became known for. "[I rediscovered] the wish to make compositions with figures. For this I had to make (quickly I thought; in passing), one or two studies from nature, just enough to understand the construction of a head, of a whole figure, and in 1935 I took a model. This study should take, I thought, two weeks and then I could realize my compositions...I worked with the model all day from 1935 to 1940...Nothing was as I imagined. A head, became for me an object completely unknown and without dimensions." Since Giacometti achieved exquisite realism with facility when he was executing busts in his early adolescence, Giacometti's difficulty in re-approaching the figure as an adult is generally understood as a sign of existential struggle for meaning, rather than as a technical deficit. Giacometti was a key player in the Surrealist art movement, but his work resists easy categorization. Some describe it as formalist, others argue it is expressionist or otherwise having to do with what Deleuze calls "blocs of sensation" (as in Deleuze's analysis of Francis Bacon). Even after his excommunication from the Surrealist group, while the intention of his sculpting was usually imitation, the end products were an expression of his emotional response to the subject. He attempted to create renditions of his models the way he saw them, and the way he thought they ought to be seen. He once said that he was sculpting not the human figure but "the shadow that is cast". Scholar William Barrett in Irrational Man: A Study in Existential Philosophy (1962), argues that the attenuated forms of Giacometti's figures reflect the view of 20th century modernism and existentialism that modern life is increasingly empty and devoid of meaning. "All the sculptures of today, like those of the past, will end one day in pieces...So it is important to fashion one's work carefully in its smallest recess and charge every particle of matter with life." A 2011–2012 exhibition at the Pinacothèque de Paris focused on showing how Giacometti was inspired by Etruscan art. Walking Man and other human figures Giacometti is best known for the bronze sculptures of tall, thin human figures, made in the years 1945 to 1960. Giacometti was influenced by the impressions he took from the people hurrying in the big city. People in motion he saw as "a succession of moments of stillness". The emaciated figures are often interpreted as an expression of the existential fear, insignificance and loneliness of mankind. The mood of fear in the period of the 1940s and the Cold War is reflected in this figure. It feels sad, lonely and difficult to relate to. Legacy Exhibitions Giacometti's work has been the subject of numerous solo exhibitions including Vancouver Art Gallery, Vancouver BC (2019); “Alberto Giacometti: A Line Through Time”, Pera Museum, Istanbul (2015), Pushkin Museum, Moscow (2008); “The Studio of Alberto Giacometti: Collection of the Fondation Alberto et Annette Giacometti”, Centre Pompidou, Paris (2007–2008); Kunsthal Rotterdam (2008); Fondation Beyeler, Basel (2009), Buenos Aires (2012); Kunsthalle Hamburg (2013), and the High Museum of Art, Atlanta (1970). The National Portrait Gallery, London's first solo exhibition of Giacometti's work, Pure Presence opened to five star reviews on 13 October 2015 (to 10 January 2016, in honour of the fiftieth anniversary of the artist's death). From April 2019, the Prado Museum in Madrid, has been highlighting Giacometti in an exhibition. Public collections Giacometti's work is displayed in numerous public collections, including: Albright-Knox Art Gallery, Buffalo Art Institute of Chicago Baltimore Museum of Art, Baltimore, Maryland Bechtler Museum of Modern Art, Charlotte, North Carolina Berggruen Museum, Berlin Botero Museum, Bogotá, Colombia Chur, Switzerland Carnegie Museum of Art, Pittsburgh Detroit Institute of Arts Fondation Beyeler, Basel Hirshhorn Museum and Sculpture Garden, Washington D.C. J. Paul Getty Museum, Los Angeles, California Johnson Museum of Art, Cornell University Kunsthaus Zürich Kunstmuseum Basel Leeum, Samsung Museum of Art, South Korea Los Angeles County Museum of Art Louisiana Museum of Modern Art, Denmark Minneapolis Institute of Art Museum of Modern Art, New York Museum of Fine Arts, Boston National Gallery of Art, Washington D.C. National Gallery of Canada, Ottawa North Carolina Museum of Art, Raleigh, North Carolina Sainsbury Centre for Visual Arts, University of East Anglia Scottsdale Museum of Contemporary Art, Scottsdale, Arizona Solomon R. Guggenheim Museum, New York Tate, London Tehran Museum of Contemporary Art, Iran University of Michigan Museum of Art Wadsworth Atheneum, Hartford Walker Art Center, Minneapolis Vancouver Art Gallery Art foundations The Fondation Alberto et Annette Giacometti, having received a bequest from Alberto Giacometti's widow Annette, holds a collection of circa 5,000 works, frequently displayed around the world through exhibitions and long-term loans. A public interest institution, the Foundation was created in 2003 and aims at promoting, disseminating, preserving and protecting Alberto Giacometti's work. The Alberto-Giacometti-Stiftung established in Zürich in 1965, holds a smaller collection of works acquired from the collection of the Pittsburgh industrialist G. David Thompson. Notable sales According to record Giacometti has sold the two most expensive sculptures in history. In November 2000 a Giacometti bronze, Grande Femme Debout I, sold for $14.3 million. Grande Femme Debout II was bought by the Gagosian Gallery for $27.4 million at Christie's auction in New York City on 6 May 2008. L'Homme qui marche I, a life-sized bronze sculpture of a man, became one of the most expensive works of art, and at the time was the most expensive sculpture ever sold at auction. It was in February 2010, when it sold for £65 million (US$104.3 million) at Sotheby's, London. Grande tête mince, a large bronze bust, sold for $53.3 million just three months later. L'Homme au doigt (Pointing Man) sold for $126 million (£81,314,455.32), or $141.3 million with fees, in Christie's May 2015, "Looking Forward to the Past" sale in New York City. The work had been in the same private collection for 45 years. As of now it is the most expensive sculpture sold at auction. After being showcased on the BBC programme Fake or Fortune, a plaster sculpture, titled Gazing Head, sold in 2019 for half a million pounds. In April 2021, Giacometti's small-scale bronze sculpture, Nu debout

are used as sports anthems, notably including Queen's "We Are the Champions" and "We Will Rock You", and some sporting events have their own anthems, most notably including UEFA Champions League. Further, some songs are artistically styled as anthems, whether or not they are used as such, including Marilyn Manson's "Irresponsible Hate Anthem", Silverchair's "Anthem for the Year 2000", and Toto's "Child's Anthem". National anthem A national anthem (also state anthem, national hymn, national song, etc.) is generally a patriotic musical composition that evokes and eulogizes the history, traditions, and struggles of a country's people, recognized either by that state's government as the official national song, or by convention through use by the people. The majority of national anthems are marches or hymns in style. The countries of Latin America, Central Asia, and Europe tend towards more ornate and operatic pieces, while those in the Middle East, Oceania, Africa, and the Caribbean use a simpler fanfare. Some countries that are devolved into multiple constituent states have their own official musical compositions for them (such as with the United Kingdom, Russian Federation, and the former Soviet Union); their constituencies' songs are sometimes referred to as national anthems even though they are not sovereign states. Flag anthem A flag anthem is generally a patriotic musical composition that extols and praises a flag, typically one of a country, in which case it is sometimes called a national flag anthem. It is often either sung or performed during or immediately before the raising or lowering of a flag during a ceremony. Most countries use their respective national anthems or some other patriotic song for this purpose. However, some countries, particularly in South America, use a discrete flag anthem for such purposes. Not all countries have flag anthems. Some used them in the past but no longer do, such as Iran, China, and South Africa. Flag anthems can be officially codified in law, or unofficially recognized as such through mere custom and convention. In some countries, the flag anthem may be just another song, and in others, it may be an official symbol of the state akin to a second national anthem, such as in Taiwan. Shared anthems Although anthems are used to distinguish states and territories, there are instances of shared anthems. "Nkosi Sikelel' iAfrika" became a pan-African liberation anthem and was later adopted as the national anthem of five countries in Africa including Zambia, Tanzania, Namibia and Zimbabwe after independence. Zimbabwe and Namibia have since adopted new national anthems. Since 1997, the South African national anthem has been a hybrid song combining new English lyrics with extracts of "Nkosi Sikelel' iAfrika" and the former state anthem "Die Stem van Suid-Afrika". "Hymn to Liberty" is the longest national anthem in the world by length of text. In 1865, the first three stanzas and later the first two officially became the national anthem of Greece and later also that of the Republic of Cyprus. "Forged from the Love of Liberty" was composed as the national anthem for the short-lived West Indies Federation (1958–1962) and was adopted by Trinidad and Tobago when it became independent in 1962. "Esta É a Nossa Pátria Bem Amada" is the national anthem of Guinea-Bissau and was also the national anthem of Cape Verde until 1996. "Oben am jungen Rhein", the national anthem of Liechtenstein, is set to the tune of "God Save the Queen". Other anthems that have used the same melody include "Heil dir im Siegerkranz", "Kongesangen", "My Country, 'Tis of Thee", "Rufst du, mein Vaterland", "E Ola Ke Alii Ke Akua", and "The Prayer of Russians". The Estonian anthem "Mu isamaa, mu õnn ja rõõm" is set to a melody composed in 1848 by Fredrik (Friedrich) Pacius which is also that of the national anthem of Finland: "Maamme" ("Vårt Land" in Swedish). It is also considered to be ethnic anthem for the Livonian people with lyrics "Min izāmō, min sindimō" ("My Fatherland, my native land"). "Hey, Slavs" is dedicated to Slavic peoples. Its first lyrics were written in 1834 under the title "Hey, Slovaks" ("Hej, Slováci") by Samuel Tomášik and it has since served as the ethnic anthem of the Pan-Slavic movement, the organizational anthem of the Sokol physical education and political movement, the national anthem of Yugoslavia and the transitional anthem of the State Union of Serbia and Montenegro. The song is also considered to be the second, unofficial anthem of the Slovaks. Its melody is based on Mazurek Dąbrowskiego, which has been also the anthem of Poland since 1926, but the Yugoslav variation is much slower and more accentuated. Between 1991 and 1994 "Deșteaptă-te, române!" was the national anthem of both Romania (which adopted it in 1990) and Moldova, but in the case of the latter was replaced by the current Moldovan national anthem, "Limba noastră". Between 1975 and 1977, the national anthem of Romania "E scris pe tricolor Unire" shared the same melody as the national anthem of Albania "Himni i Flamurit", which is the moldy of a Romanian patriotic song "Pe-al nostru steag e scris Unire". The modern national anthem of Germany, "Das Lied der Deutschen", uses the same tune as the 19th and early 20th-century Austro-Hungarian imperial anthem "Gott erhalte Franz den Kaiser". The "Hymn of the Soviet Union", used until its dissolution in 1991, which was given new words and adopted by the Russian Federation in 2000 to replace an instrumental national anthem that had been introduced in 1990. "Bro Gozh ma Zadoù", the regional anthem of Brittany and, "Bro Goth Agan Tasow", the Cornish regional anthem, are sung to the same tune as that of the Welsh regional anthem "Hen Wlad Fy Nhadau", with similar words. For parts of states Some countries, such as the former Soviet Union, Spain, and the United Kingdom, among others, are held to be unions of several "nations" by various definitions. Each of the different "nations" may

Hymn" as its provincial anthem. Czechoslovakia Czechoslovakia had a national anthem composed of two parts, the Czech regional anthem followed by one verse of the Slovak one. After the dissolution of Czechoslovakia, the Czech Republic adopted its own regional anthem as its national one, whereas Slovakia did so with slightly changed lyrics and an additional stanza. Germany In Germany, many of the Länder have their own anthems, some of which predate the unification of Germany in 1871. A prominent example is the Hymn of Bavaria, which also has the status of an official anthem (and thus enjoys legal protection). There are also several unofficial regional anthems, like the "Badnerlied" or the "Niedersachsenlied". Malaysia All the individual states of Malaysia have their own anthems. Mexico In Mexico, after the national anthem was established in 1854, most of the states of the federation adopted their own regional anthems, which often emphasize heroes, virtues or particular landscapes. In particular, the regional anthem of Zacatecas, the "Marcha de Zacatecas", is one of the more well-known of Mexico's various regional anthems. Serbia and Montenegro In 2005 and 2004 respectively, the Serbian and Montenegrin regions of Serbia and Montenegro adopted their own regional anthems. When the two regions both became independent countries in mid-2006, their regional anthems became their national ones. Soviet Union Fourteen of the fifteen constituent states of the Soviet Union had their own official song which was used at events connected to that region, and also written and sung in that region's own language. The Russian Soviet Federative Socialist Republic used the Soviet Union's national anthem as its regional anthem ("The Internationale" from 1917 to 1944 and the "National Anthem of the Soviet Union" from 1944 to 1990) until 1990, the last of the Soviet constituent states to do so. After the Soviet Union disbanded in the early 1990s, some of its former constituent states, now sovereign nations in their own right, retained the melodies of their old Soviet-era regional anthems until replacing them or, in some cases, still use them today. Unlike most national anthems, few of which were composed by renowned composers, the Soviet Union's various regional anthems were composed by some of the best Soviet composers, including world-renowned Gustav Ernesaks (Estonia), Aram Khachaturian (Armenia), Otar Taktakishvili (Georgia), and Uzeyir Hajibeyov (Azerbaijan). The lyrics present great similarities, all having mentions to Vladimir Lenin (and most, in their initial versions, to Joseph Stalin, the Armenian and Uzbek anthems being exceptions), to the guiding role of the Communist Party of the Soviet Union, and to the brotherhood of the Soviet peoples, including a specific reference to the friendship of the Russian people (the Estonian, Georgian and Karelo-Finnish anthems were apparently an exception to this last rule). Some of the Soviet regional anthems' melodies can be sung in the Soviet Union anthem lyrics (Ukrainian and Belarus are the most fitted in this case). Most of these regional anthems were replaced with new national ones during or after the dissolution of the Soviet Union; Belarus, Kazakhstan (until 2006), Tajikistan, Turkmenistan (until 1997), and Uzbekistan kept the melodies, but with different lyrics. Russia itself had abandoned the Soviet hymn, replacing it with a tune by Glinka. However, with Vladimir Putin coming to power, the old Soviet tune was restored, with new lyrics written to it. Like the hammer and sickle and red star, the public performance of the anthems of the Soviet Union's various regional anthems the national anthem of the Soviet Union itself are considered as occupation symbols as well as symbols of totalitarianism and state terror by several countries formerly either members of or occupied by the Soviet Union. Accordingly, Latvia, Lithuania, Hungary, and Ukraine have banned those anthems amongst other things deemed to be symbols of fascism, socialism, communism, and the Soviet Union and its republics. In Poland, dissemination of items which are “media of fascist, communist, or other totalitarian symbolism” was criminalized in 1997. However, in 2011 the Constitutional Tribunal found this sanction to be unconstitutional. In contrast to this treatment of the symbolism, promotion of fascist, communist and other totalitarian ideology remains illegal. Those laws do not apply to the anthems of Russia, Belarus, Uzbekistan, Kazakhstan, and Tajikistan which used the melody with different lyrics. Spain In Spain, the situation is similar to that in Austria and Germany. Unlike the national anthem, most of the anthems of the autonomous communities have words. All are official. Three prominent examples are "Els Segadors" of Catalonia, "Eusko Abendaren Ereserkia" of the Basque Country, and "Os Pinos" of Galicia, all written and sung in the local languages. United Kingdom The United Kingdom's national anthem is "God Save the Queen" but its constituent countries and Crown Dependencies also have their own national anthems which have varying degrees of official recognition. England, Scotland, Wales, and Northern Ireland, each has a number of anthems which are played at occasions such as sports matches and official events. England - "God Save the Queen" is usually presumed to be, and often played as, the English regional anthem; but "Jerusalem", "I Vow To Thee, My Country" and "Land of Hope and Glory" are also sung. Scotland variously uses "Flower of Scotland", "Auld Lang Syne", and "Scotland the Brave" as its unofficial national anthems. Wales has sung "Hen Wlad Fy Nhadau" since 1856 when it was written by father and son Evan and James James. The music and a Breton translation, "Bro Gozh ma Zadoù", were adopted by Brittany as its regional anthem; and there is also a Cornish version, "Bro Goth agan Tasow", sung alongside "Trelawney" as an unofficial Cornish anthem. In Wales, "Hen Wlad fy Nhadau" is sometimes accompanied by the hymn, "Guide Me, O thou Great Redeemer" (also referred to as "Bread of Heaven" from repeated words in its first verse), especially at rugby matches. Northern Ireland currently uses "God Save the Queen" but previously used "Danny Boy/Londonderry Air". United States Although the United States has "The Star-Spangled Banner" as its official national anthem, all except two of its constituent states and territories also has its own regional anthem (referred to by most US states as a "state

free imperial city of Regensburg, a town located on the Danube River in 1505, eventually becoming the town architect and a town councillor. His first signed works date to c. 1506, including engravings and drawings such the Stygmata of St. Francis and St. Jerome. His models were niellos and copper engravings from the workshops of Jacopo de Barbari and Albrecht Dürer. Around 1511 or earlier, he travelled down the river and south into the Alps, where the scenery moved him so deeply that he became the first landscape painter in the modern sense, making him the leader of the Danube School, a circle that pioneered landscape as an independent genre, in southern Germany. From 1513 he was at the service of Maximilian I in Innsbruck, where he received several commissions from the imperial court. During the turmoil of the Protestant Reformation, he dedicated mostly to architecture; paintings of the period, showing his increasing attention to architecture, include the Nativity of the Virgin. In 1529, he executed The Battle of Alexander at Issus for Duke William IV of Bavaria. In the 1520s he returned to Regensburg as a wealthy man, and became a member of the city's council. He was also responsible for the fortifications of Regensburg. In that period his works are influenced by artists such as Giorgione and Lucas Cranach, as shown by his Crucifixion. In 1535, he was in Vienna. He died at Regensburg in 1538. The remains of Altdorfer's surviving work comprises 55 panels, 120 drawings, 125 woodcuts, 78 engravings, 36 etchings, 24 paintings on parchment, and fragments from a mural for the bathhouse of the Kaiserhof in Regensburg. This production extends at least over the period 1504–1537. He signed and dated each one of his works. Painting Altdorfer was the pioneer painter of pure landscape, making them the subject of the painting, as well as compositions dominated by their landscape; these comprise much of his oeuvre. He believed that the human figure should not disrupt nature, but rather participate in it or imitate its natural processes. Taking and developing the landscape style of Lucas Cranach the Elder, he shows the hilly landscape of the Danube valley with thick forests of drooping and crumbling firs and larches hung with moss, and often dramatic colouring from a rising or setting sun. His Landscape with Footbridge (National Gallery, London) of 1518–1520 is claimed to be the first pure landscape in oil. In this painting, Altdorfer places a large tree that is cut off by the margins at the center of the landscape, making it the central axis and focus within the piece. Some viewers perceive anthropomorphic stylisation—the tree supposedly exhibiting human qualities such as the drapery of its limbs. He also made many fine finished drawings, mostly landscapes, in pen and watercolour such as the Landscape with the Woodcutter in 1522. The drawing opens at ground level on a clearing surrounding an enormous tree that is placed in the center, dominating the picture. Some see the tree pose and gesticulate as if it was human, splaying its branches out in every corner. Halfway up the tree trunk, hangs a gabled shrine. At the time, a shrine like this might shelter an image of the Crucifixion or the Virgin Mary, but since it is turned away from the viewer, we are not sure what it truly is. At the bottom of the tree, a tiny figure of a seated man, crossed legged, holds a knife and axe, declaring his status in society/occupation. Also, he often painted scenes of historical and biblical subjects, set in atmospheric landscapes. His best religious scenes are intense, with their glistening lights and glowing colours sometimes verging on the expressionistic. They often depict moments of intimacy between Christ and his mother, or various saints. His sacral masterpiece and one of the most famous religious works of art of the later Middle Ages is The Legend of St. Sebastian and The Passion of Christ of the so-called Sebastian Altar in St. Florian's Priory (Stift Sankt Florian) near Linz, Upper Austria. When closed the altarpiece displayed the four panels of the legend of St. Sebastian's Martyrdom, while the opened wings displayed the Stations of the Cross. Today the altarpiece is dismantled and the predellas depicting the two final scenes, Entombment and Resurrection were sold to Kunsthistorisches Museum in Vienna in 1923 and 1930. Both these paintings share a similar formal structure that consists of an open landscape that is seen beyond and through the opening of a dark grotto. The date of completion on the resurrection panel is 1518. Altdorfer often distorts perspective to subtle effect. His donor figures are often painted completely out of scale with the main scene, as in paintings of the previous centuries. He also painted some portraits; overall his painted oeuvre was not large. In his later works, Altdorfer moved more towards mannerism and began to depict the human form to the conformity of the Italian model, as well as dominate the picture with frank colors. Paintings in Munich His rather atypical Battle of Issus (or of Alexander) of 1529 was commissioned by William IV, Duke of Bavaria as part of a series of eight historical battle scenes destined to hang in the Residenz in Munich. Albrecht Altdorfer's depiction of the moment in 333 BCE when Alexander the Great routed Darius III for supremacy in Asia Minor is vast in ambition, sweeping in scope, vivid in imagery, rich in symbols, and obviously heroic—the Iliad of painting, as literary critic Friedrich Schlegel suggested In the painting, a swarming cast of thousands

historical battle scenes destined to hang in the Residenz in Munich. Albrecht Altdorfer's depiction of the moment in 333 BCE when Alexander the Great routed Darius III for supremacy in Asia Minor is vast in ambition, sweeping in scope, vivid in imagery, rich in symbols, and obviously heroic—the Iliad of painting, as literary critic Friedrich Schlegel suggested In the painting, a swarming cast of thousands of soldiers surround the central action: Alexander on his white steed, leading two rows of charging cavalrymen, dashes after a fleeing Darius, who looks anxiously over his shoulder from a chariot. The opposing armies are distinguished by the colors of their uniforms: Darius' army in red and Alexander's in blue. The upper half of The Battle of Alexander expands with unreal rapidity into an arcing panorama comprehending vast coiling tracts of globe and sky. The victory also lies on the planar surface; The sun outshone the moon just as the Imperial and allied army successfully repel the Turks. By making the mass number of soldiers blend within the landscape/painting, it shows that he believed that the usage and depiction of landscape was just as significant as a historical event, such as a war. He renounced the office of Mayor of Regensburg to accept the commission. Few of his other paintings resemble this apocalyptic scene of two huge armies dominated by an extravagant landscape seen from a very high viewpoint, which looks south over the whole Mediterranean from modern Turkey to include the island of Cyprus and the mouths of the Nile and the Red Sea (behind the isthmus to the left) on the other side. However his style here is a development of that of a number of miniatures of battle-scenes he had done much earlier for Maximilian I in his illuminated manuscript Triumphal Procession in 1512–14. It is thought to be the earliest painting to show the curvature of the Earth from a great height. The Battle is now in the Alte Pinakothek, which has the best collection of Altdorfer's paintings, including also his small St. George and the Dragon (1510), in oil on parchment, where the two figures are tiny and almost submerged in the lush, dense forest that towers over them. Altdorfer seems to exaggerate the measurements of the forest in comparison to the figures: the leaves appear to be larger than the horse, showing the significance of nature and landscape. He also emphasizes line within the work, by displaying the upward growth of the forest with the vertical and diagonal lines of the trunks. There is a small opening of the forest on the lower right hand corner that provides a rest for your eyes. It serves to create depth within the painting and is the only place you can see the characters. The human form is completely absorbed by the thickness of the forest. Fantastic light effects provide a sense of mystery and dissolve the outline of objects. Without the contrast of light, the figures would blend in with its surrounding environment. Altdorfer's figures are invariably the complement of his romantic landscapes; for them he borrowed Albrecht Dürer's inventive iconography, but the panoramic setting is personal and has nothing to do with the fantasy landscapes of the Netherlands A Susanna in the Bath and the Stoning of the Elders (1526) set outside an Italianate skyscraper of a palace shows his interest in architecture. Another small oil on parchment, Danube Landscape with Castle Wörth (c. 1520) is one of the earliest accurate topographical paintings of a particular building in its setting, of a type that was to become a cliché in later centuries. Printmaking Altdorfer was a significant printmaker, with numerous engravings and about ninety-three woodcuts. These included some for the Triumphs of Maximilian, where he followed the overall style presumably set by Hans Burgkmair, although he was able to escape somewhat from this in his depictions of the more disorderly baggage-train, still coming through a mountain landscape. However most of his best prints are etchings, many of landscapes; in these he was able most easily to use his drawing style. He was one of the most successful early etchers, and was unusual for his generation of German printmakers in doing no book illustrations. He often combined etching and engraving techniques in a single plate, and produced about 122 intaglio prints altogether. Many of Altdorfer's prints are quite small in size, and he is considered to be of the main members of the group of artists known as the Little Masters. Arthur Mayger Hind considers his graphical work to be somewhat lacking in technical skill but with an "intimate personal touch", and notes his characteristic feeling for landscape. Public life As the superintendent of the municipal buildings Altdorfer had overseen the construction of several commercial structures, such as a slaughterhouse and a building for wine storage, possibly even designing them. He was considered to be an outstanding politician of his day. In 1517 he was a member of the "Ausseren Rates", the council on external affairs, and in this capacity was involved in the expulsion of the Jews, the destruction of the synagogue and in its place the construction of a church and shrine to the Schöne Maria that occurred in 1519. Altdorfer made etchings of the interior of the synagogue and designed a woodcut of the cult image of the Schöne Maria. In 1529–1530 he was also charged with reinforcing certain city fortifications in response to the Turkish threat. Albrecht's brother, Erhard Altdorfer, was also a painter and printmaker in woodcut and engraving, and a pupil of Lucas Cranach the Elder. See also 8121 Altdorfer, asteroid named after Altdorfer Danube school Early Renaissance painting List of landscapes by Albrecht