Hogwarts School of Witchcraft and Wizardry () is a fictional boarding school of magic for students aged eleven to eighteen, and is the primary setting for the first six books in J. K. Rowling's Harry Potter series and serves as a major setting in the Wizarding World universe.

History

Establishment
Founded around the 9th century and 10th century by Godric Gryffindor, Rowena Ravenclaw, Helga Hufflepuff and Salazar Slytherin, Hogwarts was established in the Highlands of Scotland to educate young wizards and witches as well as to keep students safe from Muggle persecution. Theory has it that Rowena Ravenclaw came up with the name of Hogwarts after dreaming of a warty hog that led her to a cliff by a lake. Since then, Hogwarts educated most wizarding children with residence in Great Britain and Ireland, keeping its location hidden from other wizarding schools and Muggles.

Middle Ages
About 300 years after the school was founded, the Triwizard Tournament was established as an interscholastic competition among the three most prestigious magical schools in Europe: Hogwarts, Beauxbatons, and Durmstrang. The tournament continued for six centuries before being discontinued. An attempt was made in the 1994–1995 school year to revive the tournament, but the consequential death of Cedric Diggory resulted in its permanent discontinuation.

Academics and traditions
Hogwarts is a coeducational, secondary boarding school, taking children from ages eleven to eighteen, in line with real-world combined secondary and sixth form institutions in Britain.  Education at Hogwarts is not compulsory, with some students being home schooled as stated in the seventh book. Rowling initially said there are about one thousand students at Hogwarts. She later suggested around six hundred, while acknowledging that this number was still inconsistent with the small number of people in Harry's year. She further explained that this had resulted from her creating only forty characters for Harry's year.

Admission
According to the novels, admission to Hogwarts is selective, in that children who show magical ability will automatically gain a place, and squibs cannot attend the school as students (though they can work there in other roles, as Argus Filch does). A magical quill at Hogwarts detects the birth of magical children and writes their names into a large parchment book, but there is no admission test because "you are either magical or you are not". Every year, a teacher checks this book and sends a letter to the children who are turning eleven. Acceptance or refusal of a place at Hogwarts must be posted by 31 July. The letter also contains a list of supplies like spell books, uniform, and other things that the student will need. The prospective student is expected to buy all the necessary materials, normally from shops in Diagon Alley, a concealed street near Charing Cross Road in London that can be found behind the wizarding pub, The Leaky Cauldron. Students who cannot afford their supplies can receive financial aid from the school, as happened with the young orphan Tom Riddle.

Letters to Muggle-born witches and wizards, who may not be aware of their powers and are unfamiliar with the concealed wizarding world, are delivered in person by a member of Hogwarts staff, who then explains to the parents or guardians about magical society, and reassures them regarding this news.

Though the school is in Great Britain, its catchment area is the wider British Isles, as Irish students can also attend.

Each student is allowed to bring an owl, a cat or a toad. Along with the acceptance letter, first-year students are sent a list of required equipment which includes a wand, subject books, a standard size 2 pewter cauldron, a set of brass scales, a set of glass or crystal phials, a kit of basic potion ingredients (for Potions), and a telescope (for Astronomy). The Hogwarts uniform consists of plain work robes in black, a plain black hat, a pair of protective gloves, and a black winter cloak with silver fastenings. Each uniform must contain the wearer's nametag. First years are not allowed a broomstick of their own, though an exception to this rule is made for Harry Potter in his first year after he demonstrates an excellent ability as a Seeker in Quidditch.

Arrival
The primary mode of transport to Hogwarts is the Hogwarts Express that students take at the start of each school year. Students board the train from the also fictional and hidden Platform  at King's Cross station in London. The train arrives at Hogsmeade station near Hogwarts, sometime after nightfall.

From there, first-year students are accompanied by the "Keeper of the Keys, Game and Grounds" (which was Rubeus Hagrid during the first novel) to small boats, which magically sail across the lake and get them near the entrance of Hogwarts. The older students ride up to the castle in carriages pulled by creatures called Thestrals. When the first-year students initially arrive at the castle, they wait in a small chamber off the entrance hall until the older students have taken their seats, and then enter the Great Hall for the Sorting Ceremony to determine their House assignments. As Professor Minerva McGonagall said in Harry Potter and the Philosopher's Stone, "The Sorting is a very important ceremony because, while you are here, your House will be something like your family within Hogwarts. You will have classes with the rest of your House, sleep in your House dormitory, and spend free time in your House common room."

After the Sorting Hat sings a song, each student in turn is seated upon the stool in front of the rest of the student body. The Hat is placed on the student's head, whereupon it examines his or her mind and assigns them to one of the four Houses based on abilities, personality, and preferences. After the Sorting Ceremony, the students and teachers enjoy a feast, prepared by the Hogwarts house-elves. If Albus Dumbledore is feeling cheerful, he will lead the students in singing the school song.

Houses

Hogwarts is divided into four houses, each bearing the last name of its founder: Godric Gryffindor, Salazar Slytherin, Rowena Ravenclaw and Helga Hufflepuff. Throughout the school year, the houses compete for the House Cup, gaining and losing points based on actions such as performance in class and rule violations. The house with the highest end-of-year total wins and has its colours displayed in the Great Hall for the following school year. Each house also has its own Quidditch team that competes for the Quidditch Cup. These two competitions breed rivalries between the houses. Houses at Hogwarts are living and learning communities for their students. Each house is under the authority of one of the Hogwarts staff members. The Heads of the houses, as they are called, are in charge of giving their students important information, dealing with matters of severe punishment, and responding to emergencies in their houses, among other things. The dormitory and common room of a House are, barring rare exceptions, inaccessible to students belonging to other Houses; however, different houses will share classes as they are based on year group rather than House.

In the early days of Hogwarts, the four founders hand-picked students for their Houses. When the founders worried how students would be selected after their deaths, Godric Gryffindor took his hat off and they each added knowledge to it, allowing the Sorting Hat to choose the students by judging each student's qualities and placing them in the most appropriate house. The student's own choices may affect the decision: the clearest example is the Hat telling Harry that he would do well in Slytherin in the first book, but ultimately selecting Gryffindor after Harry asks it not to put him in Slytherin.

The translators of the books' foreign editions had difficulty translating the "house" concept; in countries where this system does not exist, no word could adequately convey the importance of belonging to a house, the loyalty owed to it, and the pride taken in prizes won by the house.

Gryffindor
Gryffindor values courage, bravery, nerve, and chivalry. Gryffindor's mascot is the lion, and its colours are scarlet red and gold (maroon and gold on the ties and scarves). During the books, the Head of this house is the Transfiguration Professor and Deputy Headmistress, Minerva McGonagall until she becomes headmistress, and the house ghost is Sir Nicholas de Mimsy-Porpington, more commonly known as Nearly Headless Nick. According to Rowling, Gryffindor corresponds roughly to the element of fire. The founder of the house is Godric Gryffindor.

The Gryffindor common room is in one of the castle's highest towers, and its entrance is on the seventh floor in the east wing of the castle and is guarded by a painting of The Fat Lady, who is garbed in a pink dress. She permits entry only after being given the correct password, as was established in the third book, when Sirius Black tried forcing entry into the tower, only to be blocked by The Fat Lady after he could not give the correct password. In the first book, Neville Longbottom tends to forget the password and must wait near the painting until other Gryffindors arrive to open the way.

Hufflepuff
Hufflepuff values hard work, patience, justice, and loyalty. The house mascot is the badger, and canary yellow and black (or golden yellow and graphite in the Fantastic Beasts films) are its colours. During the books, the Head of this house is the Herbology Professor Pomona Sprout, and the house ghost is the Fat Friar. According to Rowling, Hufflepuff corresponds roughly to the element of earth. The founder of this house is Helga Hufflepuff.

The entrance to the Hufflepuff dormitories and common room entrance is concealed in a pile of large barrels in an alcove in the corridor that holds the kitchen. To enter, one must tap the barrel two from the bottom in the middle of the second row in the rhythm of "Helga Hufflepuff". Unlike any other house, the Hufflepuff common room has a repelling device that douses the illegal entrant in vinegar if the wrong lid is tapped or the rhythm is wrong. The Hufflepuff common room is filled with yellow hangings and fat armchairs and it has little tunnels leading to the dormitories, all of which have perfectly round doors, like barrel tops.

Ravenclaw
Ravenclaw values intelligence, learning, wisdom and wit. The house mascot is an eagle (raven in the Harry Potter and Fantastic Beasts films) and the house colours are blue and bronze (blue and silver in the Harry Potter and Fantastic Beasts films). During the books, the head of this house is the Charms teacher, Professor Filius Flitwick, and the house ghost is the Grey Lady. According to Rowling, Ravenclaw corresponds roughly to the element of air. The founder of this house is Rowena Ravenclaw.

The dormitories are in Ravenclaw Tower, on the west side of Hogwarts. The common room is round and filled with blue hangings and armchairs, has a domed ceiling painted with stars and features a replica statue of Rowena wearing her diadem. Harry also notes that Ravenclaws "have a spectacular view of the surrounding mountains". A logical riddle must be solved to gain entry, whereas the Gryffindor and Slytherin common rooms only require a password. Professor McGonagall, the head of the Gryffindor House, solves the riddle accurately.

Slytherin
Slytherin values ambition, cunning, leadership, and resourcefulness; the Sorting Hat said in Harry Potter and the Philosopher's Stone that Slytherins will do anything to get their way. The house mascot of Slytherin is the serpent, and the house colours are green and silver. Throughout the series, until the seventh book, the Head of House is Professor Severus Snape. Then, the previous Head of House Professor Horace Slughorn comes out of retirement, re-assuming authority after Snape becomes headmaster. The ghost of Slytherin house is the Bloody Baron. According to Rowling, Slytherin corresponds roughly to the element of water. The founder of this house is Salazar Slytherin.

The Slytherin dormitories and common room are reached by speaking a password to a patch of bare stone wall in the dungeons, which causes a hidden door to open. The Slytherin common room is a long, low, dungeon-style room, under the Hogwarts Lake, furnished with green lamps and carved armchairs. The room is described in the second book as having a greenish glow.

The Sorting Hat claims that blood purity is a factor in selecting Slytherins, although this is not mentioned until the fifth book. There is no reason to believe, however, that Muggle-born students are not sorted there, merely that pure-blooded students are more desirable to that house, as there are several examples of half-bloods in the house – such as Snape and Tom Riddle/Voldemort – and Harry himself was only excluded from the house at his own insistence. In Deathly Hallows, a group of Snatchers claim that "not many Mudbloods" are sorted into Slytherin.

When believing Harry to be dead and thinking that he has victory in his grasp, Voldemort proclaims his intention to abolish the other three houses and force all Hogwarts students into Slytherin. This design is foiled by his defeat and death, after which Slytherin becomes more diluted in its blood purity, no longer remaining the pure-blood bastion it once was.

Subjects and teachers

Being a school of magic, many subjects at Hogwarts differ from the studies of a typical school. Some subjects, such as History of Magic, derive from non-wizard – or muggle – subjects, but many others, such as charms and apparition classes, are unique to the wizarding world.
There are twelve named teachers (referred to as Professors), each specialising in a single subject. All professors are overseen by a school head and deputy head. Transfiguration, Defence Against the Dark Arts, Charms, Potions, Astronomy, History of Magic, and Herbology are compulsory subjects for the first five years, as well as flying lessons. At the end of their second year, students are required to add at least two optional subjects to their syllabus for the start of the third year. The five choices are Arithmancy, Muggle Studies, Divination, Study of Ancient Runes and Care of Magical Creatures. According to J.K. Rowling, "very specialised subjects such as alchemy are sometimes offered in the final two years, if there is sufficient demand."

At the end of their fifth year, students take the Ordinary Wizarding Level (O.W.L.) examinations for all subjects in which they are enrolled. Each examination consists of a written knowledge test and, where applicable, a practical demonstration of skills before a panel of proctors from the Ministry of Magic. Students who achieve a high enough O.W.L. grade in a particular subject may take its advanced course for the final two years, in preparation for the Nastily Exhausting Wizarding Tests (N.E.W.T.) given at the end of the seventh year.

Daily life

The day begins at Hogwarts with breakfast in the Great Hall. Students sit at their own House table and can eat and socialise, or finish homework. The Headmaster or Headmistress eats with the professors at the High Table placed at the far end of the hall. During breakfast, owls bring in the students' post, generally consisting of The Daily Prophet, letters from parents or friends, or packages from home. A bell signals the start of the first class of the morning at 9 am.

There are two long morning classes with a short break in between them for students to get to their next class. After lunch, classes resume at 1 pm, and there is a break around afternoon teatime before another class period. The classes are about one hour in length, with occasional double periods lasting two hours. Classes end around five o'clock. First-year students get Friday afternoons off, while sixth- and seventh-year students have several free periods during the week. In the evening, students eat their dinner in the Great Hall, after which they are expected to be in their common rooms. Astronomy classes take place late at night in the Astronomy Tower.

The four House dormitories have secret entrances, generally known only to members of that house and require a password (Gryffindor and Slytherin), riddle answer (Ravenclaw) or ritual (Hufflepuff) in order to gain entrance. Inside is the common room, which contains armchairs and sofas for the pupils and tables for studying and homework. There are fireplaces to keep the rooms warm, and students either relax here in the evenings or else complete their homework, but may complete their work in the bedroom. There are notice boards in each common room and at other strategic points throughout the school. The students sleep in their House dormitories, which branch off from the common rooms. Each dormitory gets at least two rooms; one for boys and one for girls (an enchantment prevents boys from entering the girls' area, although there is no spell to prevent the reverse from occurring). Each student sleeps in a large four-poster bed with bed covers and heavy curtains in the House colours, and thick white pillows. There is a bedside table for each bed, and each dormitory has a jug of water and goblets on a tray.

On designated weekends, Hogwarts students in their third year or higher, with a signed permission slip, are permitted to walk to the nearby wizarding village of Hogsmeade, where they can relax and enjoy the pubs, restaurants and shops. There appears to be a good relationship between the school and the village, and the students get on well with the locals. Favourite places in Hogsmeade include Honeydukes Sweetshop, Zonko's Joke Shop, clothing stores such as Gladrags Wizardwear, the Shrieking Shack (regarded as the most haunted building in Britain), the pubs The Three Broomsticks and The Hog's Head, and Madam Puddifoot's coffee shop.

Food
The house-elves at Hogwarts amongst other duties provide all food to students and staff. They cook a wide variety of dishes especially at the feasts. The various dishes are prepared in the kitchens directly below the Great Hall. Within the kitchen are four long tables directly aligned with the house tables in the great hall above. At meal times the food is magically transported up, appearing directly in front of the students.

Discipline
Apart from losing points from a house, serious misdeeds at Hogwarts are punishable by detention. Whenever a student loses a house point, their house jewels (ruby for Gryffindors, emeralds for Slytherin, sapphires for Ravenclaw, and diamonds for Hufflepuff) are taken away from a glass hourglass located in every classroom. The same goes for adding points to the specific house, although the teacher or prefect must conjure the gems from thin air.

According to the school caretaker, Argus Filch, detention meant subjection to various forms of corporal punishment until recently. Arthur Weasley claimed still to bear physical scars inflicted by Apollyon Pringle, Filch's predecessor. In present times, however, detention usually involves assisting staff or faculty with tedious tasks. Examples of detention include the one imposed on Harry by Dolores Umbridge in Order of the Phoenix. In this case, Harry was forced to write, "I must not tell lies" repeatedly using a magical quill which then carves what is written into the back of the writer's hand. However, most teachers at the school never use this cruel punishment. In another case, when Snape caught Harry using the Sectumsempra curse on Draco Malfoy, he was forced to go through over a thousand boxes of files describing wrongdoers at Hogwarts and their punishments. Harry was supposed to order them in alphabetical order, and rewrite the cards whose words were hard to see or otherwise damaged. The Weasley twins Fred and George Weasley had a whole drawer of these cards.

For even more serious offences, students may be suspended or even expelled from Hogwarts. Harry and Ron Weasley are threatened with expulsion after crashing Ron's car into the Whomping Willow at the start of their second year, and Harry is expelled before the start of his fifth year (although the sentence is quickly changed to a disciplinary hearing) after he is detected using magic in the presence of Muggles, a serious offence among the wizarding community. Dumbledore argued in Harry's defence, stating that it was done in self-defence, and that the Ministry has no authority to expel students – such powers are invested in the Headmaster and the Board of Governors. Snape has attempted to have Harry expelled, and he attempted to have Harry's father, James Potter, expelled when they were at Hogwarts together. The only student known to have been expelled is Hagrid, for the murder of Myrtle with an acromantula believed to be the Monster of Slytherin and for opening the Chamber of Secrets – crimes for which Tom Riddle had framed him.

Professors seem to be able to punish students with relative impunity and can hand out detention, even for unsatisfactory grades. Enforcement of rules outside of class mainly falls to the caretaker, with the assistance of the prefects. A student's Head of House usually has the final say in disciplinary matters. However, during Umbridge's tenure at Hogwarts, she quickly obtains the power to have the final say in disciplinary actions, due to an Educational Decree (one of many) passed by Minister for Magic Cornelius Fudge.

In the summer before their fifth year, two fifth year students from each House are picked to be prefects, which grants them privileges and responsibilities and disciplinary responsibilities. The leaders of the student body, the Head Boy and Head Girl, are drawn from the seventh year students. Prefects have the authority to give detentions for infractions.

Castle and grounds

J. K. Rowling says she visualises Hogwarts, in its entirety, to be:

A huge, rambling, quite scary-looking castle, with a jumble of towers and battlements. Like the Weasleys' house, it isn't a building that Muggles could build, because it is supported by magic.

In the novels, Hogwarts is somewhere in Scotland (the film Prisoner of Azkaban says that Dufftown is near). The school is depicted as having numerous charms and spells on and around it that make it impossible for a Muggle to locate it. Muggles cannot see the school; rather, they see only ruins and several warnings of danger. The castle's setting is described as having extensive grounds with sloping lawns, flowerbeds and vegetable patches, a loch (called The Black Lake), a large dense forest (called the Forbidden Forest), several greenhouses and other outbuildings, and a full-size Quidditch pitch. There is also an owlery, which houses all the owls owned by the school and those owned by students. Some rooms in the school tend to "move around", and so do the stairs in the grand staircase. Witches and wizards cannot Apparate or Disapparate in Hogwarts grounds, except when the Headmaster lifts the enchantment, whether only in certain areas or for the entire campus, so as to make the school less vulnerable when it serves the headmaster to allow Apparition. Electricity and electronic devices are not found at Hogwarts. Hermione Granger indicates in Harry Potter and the Goblet of Fire that due to the high levels of magic, "substitutes for magic (that) Muggles use" such as computers, radar and electricity "go haywire" around Hogwarts. Radios however, make an exception. Rowling explains this by saying that the radios are not powered by electricity but by magic.

Hogwarts is on the shore of a lake, sometimes called the Black Lake. In that lake are merpeople, Grindylows, and a giant squid. The giant squid does not attack humans and sometimes acts as a lifeguard when students are in the lake. The castle and its grounds are home to many secret areas as well as well-known and well-used places.

Hiding place of the Philosopher's Stone
Accessed by entering a trapdoor in the forbidden corridor on the third floor, and protected by a gauntlet of seven magical challenges set up by the teachers.
A giant three-headed dog named Fluffy placed specially to guard the trapdoor by Hagrid.
Devil's Snare, grown by Professor Sprout.
A room containing dozens of keys, charmed by Flitwick to sprout wings and fly near the ceiling. One of these keys will unlock the door to the next section. However, in the film adaptation, the keys attack the seeker of the Stone.
A large chessboard with an army of large chessmen, transfigured by McGonagall. To continue to the door on the opposite side, the person in question must beat the chessmen at a game of wizards' chess where the player must risk his life if he loses. Ron and Professor Quirrell are the only wizards to win the game of wizards' chess.
A room with a large troll inside. This is Quirrell's challenge. In the book, Quirrell had knocked out his own troll to get to the last room and thus the trio did not have to fight it; in the film, it does not appear, but it appears in the PS1 and Game Boy Color version of the game.
A series of potions, brewed by Snape. A logical riddle, not magic, has to be solved. There are two doors, blocked by fire. One potion will allow the person to exit the way he or she arrived, another will allow him or her to continue to the next chamber, two are nettle wine, and the other three are poison. This challenge does not appear in the film, but does in the video game adaptation.
The Mirror of Erised can be found in the final chamber, further enchanted by Dumbledore to bestow the Philosopher's Stone upon a seeker only hoping to acquire the stone but not use it for selfish means.

Chamber of Secrets

The Chamber of Secrets, which is deep under the school (most likely under the lake), was home to an ancient Basilisk, intended to be used to purge the school of Muggle-born students. Salazar Slytherin, one of the founders of Hogwarts, built the Chamber before he left the school.

The entrance to the Chamber is hidden in the second-floor girls' lavatory (haunted by Moaning Myrtle). One of the sink taps has a snake scratched into its side; when a command in Parseltongue is spoken, it opens to reveal the mouth of a dark, slimy chute, wide enough to slide down, that gives onto a stone tunnel. There are many skeletons of small animals littering the floor and even a gigantic skin shed by the Basilisk. The tunnel leads to a solid wall, carved with two entwined serpents with emeralds for eyes. At a command in Parseltongue, the wall opens to expose a long, dim corridor, lined with monumental statues of snakes, including two rows of towering stone pillars with more carved serpents that brace the ceiling. A colossal statue of Salazar Slytherin, looking ancient and monkey-like, is at the centre. The Basilisk rested inside the statue and emerged from its mouth when the Heir of Slytherin, Tom Riddle, summoned it.
In his second year at Hogwarts, Harry uses Parseltongue to open the chamber and destroys the diary containing the embodied memory of a 16-year-old Tom Riddle from his own days at Hogwarts and also slays the basilisk. It is later revealed that the diary was a Horcrux.
In Deathly Hallows, Ron and Hermione enter the Chamber. Ron opens the door (despite not speaking Parseltongue) by imitating sounds he heard Harry use to open Slytherin's locket. They pull a basilisk fang from its skeleton to use to destroy the Horcrux made from Helga Hufflepuff's cup.

When Tom Riddle opened the Chamber, Myrtle was sulking in a stall after being teased by student Olive Hornby. She opened the door, intending to tell him to leave, but died immediately upon meeting the Basilisk's gaze and decided to become a ghost to get revenge on Hornby. The bathroom remains operational, but is rarely used by students because of Myrtle's disagreeable presence and her habit of flooding it when she is distraught.

The film's depiction of the Chamber has snake heads in place of the pillars and Slytherin's statue is only his head. Rowling reveals in the book Harry Potter Page to Screen; The Complete Filmmaking Journey that the Chamber has flooded since its creation under unknown circumstances.

As shown in Deathly Hallows, the Chamber of Secrets does not appear on the Marauder's Map.

Passages
There are usually seven secret passages in and out of the school, and in addition, the series describes the use of twin vanishing cabinets to create another. Filch knows of just four of these, while the Marauders (James Potter, Sirius Black, Remus Lupin and Peter Pettigrew) and the Weasley twins know of all seven, though where some lead is unknown. The Room of Requirement may, on occasion, create an eighth passage out of the school. The only known instance of this occurring is a passage to the Hog's Head that forms in Deathly Hallows. Due to the nature of the Room of Requirement, it is possible that several passages to different locations could be accessed from the Room. The three passages out of Hogwarts that Filch does not know about are:
A passage beneath the Whomping Willow, leading to the Shrieking Shack.
A passage behind a mirror on the fourth floor, which is caved in. It leads to Hogsmeade, but it is not known exactly where.
A passage beneath the one-eyed witch statue by the stairs to the Defence Against the Dark Arts classroom, leading to the cellar of Honeydukes. Speaking aloud the word 'Dissendium' to the witch allows access to this passage; the hump on the statue then opens and reveals the hidden passageway.
A further link between two vanishing cabinets, one in the school and the other in Borgin and Burkes in Knockturn Alley presumably works until Chamber of Secrets when Peeves (persuaded by Nearly Headless Nick) smashes the Hogwarts cabinet. The passage is reopened in Half-Blood Prince when Draco Malfoy fixes the cabinet. This passage is not shown on the Marauder's Map as it is not part of the castle itself.

Besides passages in and out of the school, there are also numerous short-cuts that lead from one part of the castle to another. These are often concealed in such fashions as a tapestry which hides a hole in the wall.

Room of Requirement
On the seventh floor opposite an enormous tapestry depicting Barnabas the Barmy attempting to train trolls for the ballet, the Room of Requirement appears only when someone is in need of it. To make it appear, one must walk past its hidden entrance three times while concentrating on what is needed. The room will then appear, outfitted with whatever is required. To the Hogwarts house-elves, it is also known as the Come and Go Room.

Dumbledore is the first to mention the room, noting that he discovered it at five-thirty in the morning, filled with chamber pots when he was trying to find a toilet. However, Dumbledore did not appear to know the Room's secrets. Dobby later told Harry of the Room in detail and admitted to frequently bringing Winky to the room to cure her bouts of Butterbeer-induced drunkenness, finding it full of antidotes and a "nice elf-sized bed". Filch was said to find cleaning supplies here when he had run out; when Fred and George needed a place to hide, it would appear as a broom cupboard. Trelawney also makes a habit of using it to hide her empty sherry bottles after she is sacked in Order of the Phoenix. It would seem that when one wishes to hide something it produces the same room for everyone: the Room of Hidden Things, which is full of many centuries worth of abandoned objects, such as broken furniture, books, and in one case a dead quintaped (for more information see Fantastic Beasts and Where to Find Them), which were presumably forgotten by their owners.

Harry learns of the room's abilities from Dobby in Order of the Phoenix, finding it the perfect location for his Dumbledore's Army meetings, during which it is filled with bookcases full of Defence Against the Dark Arts volumes, many different kinds of Dark Detectors, and a plethora of floor cushions for practising defensive spells.  When the D.A. is betrayed, the room is left open, and Pansy Parkinson is able to retrieve the list of members of the organisation. In Half-Blood Prince Harry uses the Room of Hidden Things to stash his copy of Advanced Potion-Making, describing it as the size of a large cathedral and packed to overflowing with items hidden by Hogwarts inhabitants over the years, such as old potions, clothing, ruined furniture, an old tiara (which happens to be one of Voldemort's Horcruxes), or books which are "no doubt banned or graffitied or stolen". He later realises that Draco has been using the room in this state to hide and repair the Vanishing Cabinet to use it to smuggle Death Eaters into Hogwarts. Ironically, while Harry tries many times to get into the Room of Requirement to see what Draco is doing, the only time he succeeds to get into the room (and he is not thinking about Draco), he gains access to the room where Malfoy has been working.

In Deathly Hallows, the students who need a place to hide from the Carrows, two Death Eater professors, use the room. It is also revealed that the Room of Requirement's current version can change while still occupied, though should a completely different version be required (e.g. the Room of Hidden Things instead of DA Headquarters) the room must be empty. The Room can also answer to the desire of the wizard within the room, such as providing Harry with a whistle when he needed one during a Dumbledore's Army meeting, or creating a passage to the Hog's Head (as the room cannot produce food). Later, Ravenclaw's diadem is found to be one of Voldemort's Horcruxes and has been hidden in the Room of Hidden Things by Voldemort. Harry, Ron, and Hermione enter the Room, with Harry knowing that he must look for a place to hide things, and find the tiara; but they are ambushed by Draco, Crabbe and Goyle. The diadem is finally destroyed when Crabbe fills this version of the Room with what Hermione believes to have been Fiendfyre; a destructive magical fire. It is not known if the room continues to function after the events of Deathly Hallows; Ron expresses concern that it may have been ruined in all of its forms by the cursed fire.

Due to the Room of Requirement not being in a fixed location, it is one of the select locations in Hogwarts that does not appear on the Marauder's Map.

Forbidden Forest
The Forbidden Forest is a large, dark enchanted forest in the boundaries of the school grounds. It is usually referred to simply as "the Forest" and in the film series as the "Dark Forest". It is strictly forbidden to all students, except during Care of Magical Creatures lessons and, on rare occasions, detentions.

Among the plant species within the Forest are trees such as beech, oak, pine, sycamore, yew and knotgrass and thorn undergrowth. Though the Forest is vastly dense and wild, there are a few paths and clearings. Hagrid, who frequently travels into the Forest for various reasons, mostly makes these trails. The Forest is also home to an assortment of creatures, many of them dangerous.

In 2017, a Forbidden Forest expansion was added to the Warner Bros. Studio Tour London - The Making of Harry Potter, enabling fans to explore it for the first time.

Hogwarts Express

The Hogwarts Express is a train that carries pupils non-stop from Platform  at King's Cross station in London to Hogsmeade Station, near Hogwarts. Prefects of the school ride in a separate carriage near the front of the train. The compartments on the train appear to be lettered; in Half-Blood Prince, the "Slug Club" meets in compartment C.

The train began use in the 1850s. Before that, pupils used to reach Hogwarts on brooms or enchanted carriages.

The steam engine used in the film adaptations is the GWR 4900 Class 5972 Olton Hall, but it was not the first locomotive to be disguised as the Hogwarts Express. To promote the books, the Southern Railway locomotive 34027 Taw Valley was repainted and renamed temporarily, but was rejected by director Chris Columbus as looking 'too modern' for the film. Filming locations for the Hogwarts Express sequences include Goathland on the North Yorkshire Moors Railway, Kings Cross railway station and the route of the Jacobite Express which follows the West Highland Line from Fort William to Mallaig in Scotland, as it crosses the Glenfinnan Viaduct.

Several model trains have been made of the Hogwarts Express. An 00 gauge is produced by Hornby, though this is of a Castle Class locomotive rather than the Hall Class used in the films. A three-rail H0 gauge model is produced by Märklin, and a two-rail H0/00 was produced in the early 2000s by Bachmann. Several now-discontinued L gauge models have been produced by LEGO. Lionel has released an O gauge set in their 2007 catalogue and a G gauge set for 2008.

A completely functioning full-scale replica of the Hogwarts Express was created for The Wizarding World of Harry Potter's expansion at Universal Orlando Resort connecting King's Cross Station at the Diagon Alley expansion in Universal Studios Florida to the Hogsmeade station at Islands of Adventure, manufactured by Doppelmayr Garaventa Group in the form of a funicular railway people mover. The Hogwarts Express King's Cross Station features a wall between Platforms 9 and 10, where guests can "walk through" to get to Platform , as in the first film.

Creation for books and films
Rowling has suggested that she may have inadvertently taken the name from the hogwort plant (Croton capitatus), which she had seen at Kew Gardens some time before writing the series, although the names "The Hogwarts" and "Hoggwart" appear in the 1954 Nigel Molesworth book How to Be Topp by Geoffrey Willans. The name "Hogwart" also appears in the 1986 Labyrinth fantasy film.

Most exterior scenes were shot on location at Alnwick Castle, but views of the exterior of the entire school were created from shots of Durham Cathedral with a digital spire added to the towers. Durham Cathedral also served as a set for Hogwarts interiors.

A scale model was created for exterior shots of the entire school. Models of Alnwick Castle and Durham Cathedral were also built to create more integration between the model and on location shots. It took a team of 86 artists and crew members 74 years worth of man hours to complete the model.

Popularity
Hogwarts school was voted as the 36th-best Scottish educational establishment in a 2008 online ranking, outranking Edinburgh's Loretto School. According to a director of the Independent Schools Network Rankings, it was added to the schools listing "for fun" and was then voted on.

In translation
Most translations keep the name 'Hogwarts', transcribing it if necessary. For example, in Arabic it is transcribed as  = Hūghwūrts, in Russian as  = Khogvarts, in Japanese as  = Hoguwātsu, in Bengali as  = Hogowarts, in Greek as  = Hóguarts, and in simplified Chinese as  = Huògéwòcí.

However, some translations translate or otherwise adapt the name: French  ( = "bacon"), Latvian  shortened from  = "pig" +  = "warts", Dutch  modified from  = "pig rock", Norwegian Bokmål  (galt = boar, vort = wart) (Nynorsk keeps ""), Finnish  ( = "wart"), Hungarian  (playing with the name of Oxford in tribute to Harry Potter's home country), Slovenian  ( = "warts")), Czech  means simply "warts". The Ancient Greek translation of the school is "Ὑογοήτου Παιδευτήριον τὸ τῆς Γοητείας καὶ Μαγείας", loosely translating to "Hogwizard's School of Wizardry and Magic", Ὑογοήτου replacing "Hogwarts" and derived from the ancient Greek words ὑo- (hog) and γοητής (wizard).

See also
 Albus Dumbledore
 Loch Shiel

References

External links

 The Harry Potter Lexicon's Hogwarts Atlas featuring numerous images of Hogwarts. hplex.info.
 The Marauder's Map from the Warner Bros website, harrypotter.warnerbros.co.uk

Fictional elements introduced in 1997
Fictional fortifications
Fictional locations in Scotland
Fictional magic schools
Harry Potter organisations
Fictional buildings and structures originating in literature
Glen Fiddich

Hogwarts


A smiley (also called a "smiley face" and an "emoticon") is a picture of a smiling face that is used to show emotion. The first smileys to be widely used were made as yellow buttons, but now the most common smileys are made using computer keyboard symbols. Smileys are used by many people in emails and other types of computer messages. A "smiley" is also sometimes spelt wrongly as "smily" or "smilie".

History

Smiley button
There were a number of early uses of simple graphics representing a smiling face. Some of these used a large circle containing two dots for eyes and a curve for the mouth. The most well-known smiley face was created in 1963 by Harvey Ball for an insurance company in Massachusetts. This design was a bright yellow circle representing a face, with black oval eyes and a big curved mouth with smile creases at the ends.

The design was made popular in the early 1970s by a pair of brothers, Murray and Bernard Spain, who though of a great plan to sell novelty items. The two used the "smiley face" on buttons as well to decorate coffee mugs, t-shirts, bumper stickers and many other things. They also used the phrase "Have a happy day" (which was the idea of Gyula Bogar). "Smiley" buttons were very popular from the 1970s onwards.

Smileyworld Ltd
Smiley is a brand developed by Franklin Loufrani since 1971. He controls Smileyworld Ltd, a company whose mission is to make the world a happier place to live. Its brand Smiley is sold all over the world in several lifestyle industries, and its designers are constantly developing very creative and edgy products. The company donates ten percent of its royalties to a charity called the Smiley World Association, active with social actions in several countries. Its baseline is "Share your smile with those in need".

In 1997 Franklin's son Nicolas Loufrani has started to create a new world with icons based on the original Smiley logo. Today over 1200 icons are used as part of a brand called Smileyworld. This brand is based on a communication concept aimed at helping people to communicate better through various social expression products (greeting cards, gifts, etc.). It is also an educative project with books, toys, interactive products as well as a lifestyle brand for children.

Legal
Smiley has been a registered trademark since 1971. The Smiley name and logo now registered and used in over 100 countries for 25 classes of goods and services. More than 1200 Smiley emoticons are registered with the Washington Library of Congress and protected by the Universal Copyrights Convention. In the past 10 years, Smileyworld Ltd  has signed more than 800 licensing contracts worldwide and has been using its rights in most classes of goods and services in all important countries on the 5 continents. Smileyworld Ltd works with over 60 law firms to protect its IP.

Emoticon

In the 1990s people started using the internet and emails as a regular way of communicating. So that they could show happiness or fun in an easy way, people started making little smiling faces using some of the symbols on the keyboard. A keyboard smiley has a colon ":" for the eyes, a hyphen "-" for the nose, and a parenthesis ")" for the mouth. Some people make the smiley without the hyphen for a nose. The "smileys" that are made in this way are sideways.

Here is a smiley:

:-)

When you tilt your head to the left, it looks like a smiling face.

Smileys are usually used as part of a written message, but sometimes a smiley is just sent on its own to say "I am happy with your last message." Smileys are a useful way to show feelings to someone who cannot see the face of person sending the message.
 A smiley is usually used to show happiness: "I bought a new computer today! :-)"
 A smiley can show that the sender does not want to hurt a person's feelings: "That was a silly thing to do! :-)"
 A smiley can show that the sender is joking or being sarcastic: "Don't you think tests in school are really fun? :-)"

From the smiley came other ideas for showing emotions using keyboard symbols:
 :-) ... Smiley
 ;-)... I'm winking! (used to flirt with someone via text, mail, etc.)
 :-D ... I'm very happy!
 x-D ... I'm laughing!
 :-( ... I'm frowning!
 :-| ... I'm bored!
 :-o ... I'm surprised!
 :'( ... I'm crying!
 :-s ... I'm worried!
 {:-o .. I'm going crazy!
 :-P ... I'm poking my tongue out!
 x-P ... That's disgusting!
 <:o) .. Let's have a party!

Some people use different symbols, or do not use a nose, etc.

References

Internet culture
Symbols

Smiley


The Indian independence movement was a movement from 1857 until 15 August 1947, when India got its independence from the British Raj.

European Rule
Vasco da Gama of Portugal had discovered a sea route to India. He had reached Kozhikode (Calicut, Kerala) in 1498. After this, many Europeans started coming to India for trading. They made their offices and forts in various parts of India. The British East India Company became the major force in India. The company's troops led by Robert Clive defeated the rulers of Bengal in 1757. This battle became famous as the Battle of Plassey. That was the beginning of British rule, known as the British Raj, in India. In 1764, the Battle of Buxar was won by the English forces. After this, the British got control over Bengal, Bihar and Orissa.

The Parliament of the United Kingdom passed many laws to help the British East India Company. The Regulating Act of 1773, the India Act of 1784, and the Charter Act of 1813 were designed to help trade with India.

Before the First War of Independence (1857), Indians in different parts of India had revolted against the British. Many such of the revolts and armed struggles had taken place in this Some examples include:
 Revolts by many local rulers of Tamil people in southern India like Dheeran Chinnamalai, Veerapandiya Kattabomman ...etc.
 In 1825 in Karnataka kittur Chennamma rejected Doctrine of Lapsi and refused British rulers any royalty. She defeated British in the war. Kittur was defeated by British army in the second war. Her lieutenant Sangolli Rayanna continued the revolt until he was killed.
 A revolt in 1787 took place in Goa against the rule of Portugal. The histo call this revolt as the Conspiracy of the Pintos.
 A rebellion by tribes of Jharkhand in India. Historians call this Santhal Rebellion
 Rebellion under the leadership of Titumir in Bengal.

Revolt of 1857

India's First War of Independence (by this name later a book was published by V.D Savarkar) was a revolt of Indian soldiers and people (rulers and peasants) against British rule. Historians had used the terms like the Indian Mutiny or the Sepoy Mutiny to describe this event. The rebellion by Indian troops of the British Raj started in May 1857 and continued until December 1858. Many reasons had combined to result in this rebellion.

The British rulers continued to forcibly take regions ruled by Indians and made these regions part of the British Raj. They did not give any respect to old royal houses of India like the Mughals and the Peshwa. They also made the Indian soldiers of their army use a special type of cartridge (immediate cause of the rebel). The soldiers had to open the cartridges with their teeth before loading them into their guns. The cartridges supposedly used cow and pig fat. For Hindus the cow is a sacred animal and they do not eat beef. Similarly, Muslims do not eat pork. Thus, the use of these cartridges made soldiers of both the religions turn against the British. Although the British tried to replace the cartridges, the feelings against them stayed.

Rebellion broke out when a soldier called Mangal Pandey attacked a British sergeant and wounded an adjutant. General Hearsey ordered another Indian soldier to arrest Mangal Pandey but he refused. Later the British arrested Mangal Pandey and the other Indian soldier. The British killed both by hanging them.

At the beginning the British were slow to respond. Then they took very quick action with heavy forces. They brought their regiments from the Crimean War to India. They also redirected many regiments that were going to China from India. The British forces reached Delhi, and they surrounded the city from 1st July 1857 until 31st August 1857. Street-to-street fights broke out between the British troops and the Indians. Ultimately, they took control of Delhi. The massacre at Kanpur (July 1857) and the siege of Lucknow (June to November 1857) were also important. The last important battle was at Gwalior in June 1858 in which the Rani of Jhansi was killed. With this, the British had practically suppressed the rebellion. However, some guerrilla fighting in many places continued until early in 1859 and Tantia Tope was captured and executed until April 1859.

The Results
India's First War of Independence was a major event in the history of modern India. The Parliament of the United Kingdom withdrew the right of the British East India Company to rule India in November 1858. The United Kingdom started ruling India directly through its representative called the Viceroy of India(earlier governor-general of India). It made India a part of the British Empire. They promised "the Princes, Chiefs, and People of India," equal treatment under the British law.

The British sent Bahadur Shah II, the last Mughal Emperor, out of India, and kept him in Rangoon (now called Yangon in Burmese), Burma where he died in 1862. The Mughal dynasty, which had ruled India for about four hundred years, ended with his death.

The British also took many steps to employ Indian higher castes and rulers into the government. They stopped taking the lands of the remaining princes and rulers of India. They stopped interference in religious matters. They started employing Indians in the civil services but at lower levels. They increased the number of British soldiers, and allowed only British soldiers to handle artillery.

Organised movements
The period following India's First War of Independence was an important period in the Indian independence movement. Many leaders emerged at the national and provincial levels, and the Indians became more aware of their rights. Social movements also helped in shaping people's outlook, tried for social changes, and tried to remove bad social practices and evils like illiteracy and caste system. During this period, many social and religious leaders worked to inspire the Indian society. They included men like Swami Vivekananda, Ramakrishna , Sri Aurobindo, Subramanya Bharathy, Bankim Chandra Chatterjee, Sir Syed Ahmed Khan, Rabindranath Tagore and Dadabhai Naoroji. They spread the message of self-confidence, removing of social evils, and making India free from domination of foreign power. Lokmanya Tilak was one such leader who was not very modest in his views. The British arrested him. In the court he declared: "Swaraj (independence) is my birthright". This concept of Swaraj later became a main policy and philosophy of India's independence movement in the following decades until India became independent.
In 1885, at the suggestion of Allan Octavian Hume, a retired British civil servant, seventy-three Indian delegates met in Bombay. They founded the Indian National Congress. The delegates represented educated Indians in professions such as law, teaching, and journalism. A few years before, Dadabhai Naoroji had already formed the East India Association. It merged with the Indian National Congress to form a bigger party.
To begin with, the Indian National Congress was not a very active political party. It met annually and gave some suggestions to the rulers of the British Raj. The suggestions generally related to civil rights and opportunities for Indians in the government jobs. Despite its claim to represent all Indians, it represented only the educated and higher class of the society. But, it failed to attract all Muslims. Many Muslims had become distrustful of Hindu reformers who raised their voice against matters like religious conversion and killing of cows for their meat. For Hindus, the cow is a sacred animal not to be killed. Sir Syed Ahmed Khan launched a separate movement for Muslims, and founded in 1875 a college in Aligarh, Uttar Pradesh state, India. Later, this college became Aligarh University in 1921. The objective of the college was to give modern education to India's Muslims. By 1900, the Indian National Congress had become a national party, but did not represent all groups of Indian society, particularly the Muslims.

Partition of Bengal
In 1905, Lord Curzon (George Nathaniel Curzon, 1st Marquess Curzon of Kedleston), the Viceroy and Governor-General (1899-1905) of India divided Bengal province into two provinces: Eastern Bengal & Assam, with its capital at Dhaka, and West Bengal, with its capital at Calcutta (Kolkata). At that time Calcutta was the capital city of the British Raj. The people became very angry at that partition (division), and created the phrase "divide and rule" for the policy followed by the British Empire. The leading intellectual figures of India at that time expressed their unhappiness at this partition. For example, Rabindranath Tagore, the most famous Indian poet (originally from Bengal) composed a poem against this partition.

World War I
During the First World War, Indians gave support to the United Kingdom. About 1.3 million Indian soldiers went to many parts of Europe, Africa, and the Middle East to fight. Many Indians, including the princes and rich people of India, contributed money and materials to the war funds of the United Kingdom. However, many Indian soldiers died in foreign lands. In India, flu called Spanish flu spread like an epidemic killing many people. The tax rates increased in India, and prices also increased. The Indians became restless.
In August 1917, Edwin Samuel Montagu, the Secretary of State for India, announced in the British Parliament about many steps to give more rights to Indians. A new law named the Government of India Act of 1919 gave many rights to the Indians in the provincial government. These rights related to farming, local government, health, education, and public works. The British administrators kept matters like taxation, finance, and law and order under their control.

The Rowlatt Act
In 1919 the British made a new law named the Rowlatt Act. Under this law, the government got many powers, including the ability to arrest people and keep them in prisons without a trial. They also obtained the power to stop newspapers from reporting and printing news. The people called this act the Black Act. Indians protested against this law in many places.

The positive impact of reform was seriously undermined in 1919 by the Rowlatt Act, named after the recommendations made the previous year to the Imperial Legislative Council by the Rowlatt Commission, which had been appointed to investigate "seditious conspiracy." The Rowlatt Act, also known as the Black Act, vested the Viceroy's government with extraordinary powers to quell sedition by silencing the press, detaining political activists without trial, and arresting any individuals suspected of sedition or treason without a warrant. In protest, a nationwide cessation of work (hartal) was called, marking the beginning of widespread, although not nationwide, popular discontent.

The agitation reached a peak in Amritsar (Punjab, India). In Amritsar, on 13th April 1919, about 10,000 Indians had assembled at Jallianwala Bagh. They had no idea of the law that they couldn't gather. The British military commander, Brigadier-General Reginald Dyer ordered his troops to fire at the civilians without any warning. The troops fired 1,650 times. Some historians estimate that the troops killed 379 and injured about 1,137 people. This incident came to be known as the Jallianwala Bagh massacre. With this killing of innocent people, the British lost the trust of the Indian people.

Congress forced Britishers to investigate massacre of jallianwala later, a tehkikat committee was made by congress.

Gandhi's way
Mohandas Karamchand Gandhi (also known as Mahatma Gandhi) had received his education at London. He was a barrister (lawyer). In 1893, he went to South Africa. After Gandhi was thrown off a train because he was a colored person sitting in a first-class seat, he took that emotion and used it to begin to fight the injustices that many people of color faced at the time. He became successful and the government of South Africa removed most of such rules and restrictions. Gandhi led the Salt March, an act of protest.

When Gandhi returned to India in 1915, few people knew him. Under the leadership of Gandhi, Indians began to use a different method to get freedom over the next few years.

Civil disobedience

In December 1929, the Indian National Congress Party agreed to start a movement for complete independence from British rule. The Party decided to start a movement named to disobey the British rule. It became the civil disobedience movement. They decided to observe 26th January 1930 as the complete Independence Day (this is the reason why India celebrate republic day on 26 January). Many other political parties and revolutionaries came together to support this movement.

Gandhi started this movement, leading 72 people on a 400 kilometer route from Ahmedabad to Dandi (both in the Indian state of Gujarat), on the coast of the Arabian Sea. There they made salt from the seawater and broke a law of British India prohibiting making salt without paying taxes, so this event is referred to as the Salt March. Thus the civil disobedience movement began, and it soon spread throughout India. Indians started to break unfair laws in a peaceful manner in protest against the British rule.The effect of civil disobedience movement in Kerala was at Payannur and Beypore.

Revolutionary activities
Many Indians did not believe in such peaceful protests, claiming that the British would not give independence to Indians so easily. They believed in armed struggle was necessary to oust the British from India. In some way, this had continued for years after the partition of Bengal in 1905. Many revolutionaries and leaders emerged from time to time. Bhagat Singh was one of them.

The elections
The rulers of the British Raj made a new law to govern India, named the Government of India Act 1935. This law aimed at constitutional process to govern India. It had three major aims: to establish a federal system with many provinces, to give self-ruling position (autonomy) to the provinces, and to give the Muslim minority protection through giving them some separate electorates. In such separate electorates only Muslims could stand for elections. In February 1937, elections took place for the provincial assemblies. The members of the Indian National Congress won in five provinces, and held upper position in two more provinces. The Muslim League's performance in the election was not good.

The Indian move to freedom
During the Second World War, the rulers of the British Raj declared India to be a party to the war. They did not discuss the matter with Indians and their leaders. The Indians and their leaders became divided over this matter. Some supported the British, while many did not. British rulers of India wanted the Indians to fight and die in the name of freedom, yet they had denied this freedom to India and the Indians for more than a hundred years. This created a lot of dissatisfaction among Indians, and two big movements for India's independence took shape. The first was the Indian National Army of Subhas Chandra Bose. The second was Quit India Movement of Mohandas Gandhi.

The Indian National Army

Subhas Chandra Bose and many leaders did not like the British decision to drag India into the Second World War. He had twice (in 1937 and 1939) become president of the Indian National Congress Party, the leading Indian political party of that time. However, he and many other leaders of the Indian National Congress Party differed on many matters. He resigned and formed a new party named All India Forward Bloc. The British government of India put him under house arrest, but he escaped in 1941. He reached Germany and secured the support of Germany and Japan to fight the British in India. In 1943, he traveled in submarines of Germany and Japan, and reached Japan. He organised the Indian National Army. The INA fought the troops of the British Raj in northeastern India. Despite many difficulties, INA recorded many victories. However, with the surrender of Japan in 1945, INA's operations stopped. Bose died in a plane crash, but circumstances of his death are not clear.

The British government of India put on trial three Indian National Army officers at the Red Fort in Delhi. The British had chosen for this trial one Hindu, one Sikh, and one Muslim of the INA. This made many Indians of all religions very angry. A naval mutiny also broke out in Bombay. Ultimately, the British ruled that these officers were guilty, but they set them free seeing the public anger. When India became independent, the government of India did not allow the former officers and soldiers of the INA to join the armed forces of the independent India. However, the government granted them very good pensions and other facilities. The Indian public also gave them much respect.

Many consider Netaji Subhas Chandra Bose a controversial figure due to his association with the Axis Powers. But, in India, people consider him a patriotic hero of the Indian independence movement.

Quit India
On 8th August 1942, the leaders of the Indian National Congress Party met in Bombay (Mumbai). The leaders adopted a policy to force the British out of India. Gandhi's slogan "Do or Die" became a national slogan, and the movement became the Quit India Movement. At the beginning of the Second World War, the Indian National Congress Party had supported the British, but they had demanded freedom for India after the war. The British did not agree to this proposal. On 14th July 1942, the Indian National Congress Party passed a resolution demanding complete independence from the British rule. However, this did not have support of some other political parties.

Gandhi had asked the people to keep the Quit India Movement as a peaceful movement. Many people started the movement in many places of India. But at some places, the movements turned violent. Gandhi refused to eat until the violence stopped. He was successful in ending the violence.

The British action was very quick. They arrested over 100,000 people. They levied fines on many people. They dropped bombs on the people who demonstrated against the British Raj. The troops of the British Raj even beat people with sticks and caned them. The British arrested all the leaders of the Congress Party. Gandhi's wife, Kasturba Gandhi, died during detention, as well as his secretary Mahadev Desai. Gandhi's health had also become very bad. In 1944, the British set him free fearing that Gandhi's death might result in a very large protest by Indians. Gandhi continued to oppose the British, and demanded that all other leaders be set free.

The Second World War had reduced the economic, political, and military strength of the British Empire. They were also aware that after the war Indians would begin a larger movement for independence. The mood of the British people and the British Army had also changed. After the Second World War, most of them were no longer willing to support the British ruling class in India. That position was now clear to the leaders of the United Kingdom. By early 1946, those leaders set free all the political prisoners held in India and opened independence discussions with the Indian National Congress Party. On the 14th of August 1947 Pakistan gained independence and a day later on the 15th of August India gained its independence as well.

India's independence (1947 to 1950)

On midnight of 15th August 1947, Britain handed India its formal political Independence. A short time after that, Gandhi, who was aging and ill, died from a bullet fired by a Hindu extremist named Nathuram Godse. The national leadership was then passed to his chief lieutenant, Jawaharlal Nehru. On 3rd June 1947, the Viceroy Lord Mountbatten announced partition of India into two countries: union of India, and an Islamic Pakistan. In this partition, many people died while others were separated from their families. On 26th January 1950, India adopted their constitution, the longest constitution in the world.

References

Further reading
 History of the Freedom movement in India  by R. C. Majumdar

Indian independence movement


The urinary bladder is an organ in the human body in charge of storing urine. It is the part of our urinary system. All the liquids that are drunk go through the bladder. The bladder takes in the liquid in order for the body to work. The bladder works with the kidneys. The kidneys clean the liquid we drink. This goes on util the bladder is too full to hold any more. At this point, it is roughly the size of a softball. The bladder then tells the brain that it needs to be emptied. Once this message is received to the brain, the muscles around the bladder start to squeeze and the bladder starts to contract. At the same time the bladder sends a message to the sphincters to relax and let the liquid pass.

Anatomy of the urinary system

Bladder


रेस्पिरेतरि सिस्तम धाःगु, साधारण अर्थय् मनू व पेपांचू पशुतेगु म्हय् दयाच्वंगु फय् हिलिगु म्हकुचातेगु छपुचः ख। साधारणतया सासः ल्हाइगु (breathing)यात हे थ्व व्यवस्थाया ज्या खः धका मनूतेसं थुइकिगु या, तर सासः ल्हाइगु धाःसा फय् हिलिगु व्यवस्थाया छगू भाग जक्क ख। निश्चित रुपय् धायेमासाः थ्व म्हकुचातेगु पुचलं वातावरण व मनूया सर्कुलेतरि सिस्तमया दथुइ वायु कायेबियेगु ज्या याइ। मनू व मेमेगु दुरुपा दुपिं पशुइ सासः ल्हाइगु कुचापुचलय् फय्‌लं कुचाः (airways), सों, व फय्‌या बाहा निर्धारण याइगु सासः लाधि(respiratory muscles) मू ख। मनूतेसं सासः ल्हाइबिलय् वातावरणया फय् न्हासं व म्हुतुं फय्‌धों जुसें सोंय् थ्यनि। मनूतेगु निगु सों दूगुलिं थ्व तःधंगु फय्‌धों निता सोंय् वनेत निता चिधंगु धोंय् बाइ। सोंय् थ्यनेधुंका हानं सोंया थीथी थासय् थ्यनेत थ्व निता धोंत चिचिधंगु धोंय् बायावनि। थथे बायावंगु धोंत सिक्क चिपुया वनेधुंका आखिरय् फय् हिलेगु थाय् वा एल्भियोलस धाःगु छगू ग्वल्लागु थासय् थ्यनि। एल्भियोलस क्यापिलरि धाःगु दकलय् चिपूगु हिधोंया स्वापूलि दयाच्वनि। एल्भियोलस व क्यापिलरि नितां हे सालुसे च्वंगु छता कोषं जक्क दयाच्वंगु संरचना जूगुलिं थ्व थासय् अक्सिजन व कार्बोन दाइअक्साइद दिफ्युजन जुसें वातावरण व हिया दथुइ हिलिगु ज्या जुइ। थ्व कथं रेस्पिरेतरी सिस्तमं हि व वातावरणया दथुइ फय् हिलेगु ज्याय् ग्वहालि याइ। थ्व म्हकुचा पुचलं म्हया एसिद-बेसया मात्रा संतुलनय् तयेत नं ग्वहालि याइ।

संरचना
मनू व यक्व मेमेगु पशुइ फय् हिलिगु व्यवस्था (respiratory system)यात च्वय् (फय् बाहावनिगु) व क्वय् (फय् हिलिगु थाय्) धाःगु निगु भागय् बायेछिं। मनूया रेस्पिरेतरि सिस्तमय् फय् थ्व झ्वलय् वातावरणं दुहां वनि-
 न्हाय्‌प्वा
 न्यासल क्याभिटी
 फ्यारिङ्क्स् (naso-, oro-, laryngo-)
 ल्यारिङ्क्स् (स पिकाइगु थाय्)
 त्राकिया
 ब्रोङ्काइ
 ब्रोङ्कियोल्स्
 एल्भियोलाइ (फय् हिलिगु थाय्)

च्वय्‌या रेस्पिरेतरि त्राक्त/सञ्चालन क्षेत्र
The conducting zone starts with the nares (nostrils) of the nose, which open into the nasopharynx (nasal cavity). The primary functions of the nasal passages are to: 1) filter, 2) warm, 3) moisten, and 4) provide resonance in speech. The nasopharnyx opens into the oropharynx (behind the oral cavity). The oropharynx leads to the laryngopharynx, and empties into the larynx (voicebox), which contains the vocal cords, passing through the glottis, connecting to the trachea (wind pipe).

Lower respiratory tract/respiratory zone
The trachea leads down to the thoracic cavity (chest) where it divides into the right and left "main stem" bronchi. The subdivision of the bronchus are: primary, secondary, and tertiary divisions (first, second and third levels). In all, they divide 16 more times into even smaller bronchioles.

The bronchioles lead to the respiratory zone of the lungs which consists of respiratory bronchioles, alveolar ducts and the alveoli, the multi-lobulated sacs in which most of the gas exchange occurs.

Ventilation
Ventilation of the lungs is carried out by the muscles of respiration.

Control
Ventilation occurs under the control of the autonomic nervous system from the part of the brain stem, the medulla oblongata and the pons. This area of the brain forms the respiration regulatory center, a series of interconnected neurons within the lower and middle brain stem which coordinate respiratory movements. The sections are the pneumotaxic center, the apneustic center, and the dorsal and ventral respiratory groups. This section is especially sensitive during infancy, and the neurons can be destroyed if the infant is dropped or shaken violently. The result can be death due to "shaken baby syndrome."

Inhalation
Inhalation is initiated by the diaphragm and supported by the external intercostal muscles. Normal resting respirations are 10 to 18 breaths per minute. Its time period is 2 seconds. During vigorous inhalation (at rates exceeding 35 breaths per minute), or in approaching respiratory failure, accessory muscles of respiration are recruited for support. These consist of sternocleidomastoid, platysma, and the strap muscles of the neck.

Inhalation is driven primarily by the diaphragm. When the diaphragm contracts, the ribcage expands and the contents of the abdomen are moved downward. This results in a larger thoracic volume, which in turn causes a decrease in intrathoracic pressure. As the pressure in the chest falls, air moves into the conducting zone. Here, the air is filtered, warmed, and humidified as it flows to the lungs.

During forced inhalation, as when taking a deep breath, the external intercostal muscles and accessory muscles further expand the thoracic cavity.

Exhalation
Exhalation is generally a passive process, however active or forced exhalation is achieved by the abdominal and the internal intercostal muscles.

The lungs have a natural elasticity; as they recoil from the stretch of inhalation, air flows back out until the pressures in the chest and the atmosphere reach equilibrium.

During forced exhalation, as when blowing out a candle, expiratory muscles including the abdominal muscles and internal intercostal muscles, generate abdominal and thoracic pressure, which forces air out of the lungs.

Circulation
The right side of the heart pumps blood from the right ventricle through the pulmonary semilunar valve into the pulmonary trunk. The trunk branches into right and left pulmonary arteries to the pulmonary blood vessels. The vessels generally accompany the airways and also undergo numerous branchings. Once the gas exchange process is complete in the pulmonary capillaries, blood is returned to the left side of the heart through four pulmonary veins, two from each side. The pulmonary circulation has a very low resistance, due to the short distance within the lungs, compared to the systemic circulation, and for this reason, all the pressures within the pulmonary blood vessels are normally low as compared to the pressure of the systemic circulation loop.

Virtually all the body's blood travels through the lungs every minute. The lungs add and remove many chemical messengers from the blood as it flows through pulmonary capillary bed . The fine capillaries also trap blood clots that have formed in systemic veins.

Gas Exchange
The major function of the respiratory system is gas exchange. As gas exchange occurs, the acid-base balance of the body is maintained as part of homeostasis. If proper ventilation is not maintained two opposing conditions could occur: 1) respiratory acidosis, a life threatening condition, and 2) respiratory alkalosis.

Upon inhalation, gas exchange occurs at the alveoli, the tiny sacs which are the basic functional component of the lungs. The alveolar walls are extremely thin (approx. 0.2 micrometres), and are permeable to gases. The alveoli are lined with pulmonary capillaries, the walls of which are also thin enough to permit gas exchange. All gases diffuse from the alveolar air to the blood in the pulmonary capillaries, as carbon dioxide diffuses in the opposite direction, from capillary blood to alveolar air. At this point, the pulmonary blood is oxygen-rich, and the lungs are holding carbon dioxide. Exhalation follows, thereby ridding the body of the carbon dioxide and completing the cycle of respiration.

In an average resting adult, the lungs take up about 250ml of oxygen every minute while excreting about 200ml of carbon dioxide. During an average breath, an adult will exchange from 500 ml to 700 ml of air. This average breath capacity is called tidal volume.

Development
The respiratory system lies dormant in the human fetus during pregnancy. At birth, the respiratory system is drained of fluid and cleaned to assure proper functioning of the system. If an infant is born before forty weeks gestational age, the newborn may experience respiratory failure due to the under-developed lungs. This is due to the incomplete development of the alveoli type II cells in the lungs. The infant lungs do not function due to the collapse of the alveoli caused by surface tension of water remaining in the lungs. Surfactant is lacking from the lungs, leading to the condition. This condition may be avoided if the mother is given a series of steroid shots in the final week prior to delivery. The steriods accelerate the development of the type II cells.

Role in communication
The movement of gas through the larynx, pharynx and mouth allows humans to speak, or phonate. Because of this, gas movement is extremely vital for communication purposes.

Conditions of the respiratory system
Disorders of the respiratory system can be classified into four general areas:

 Obstructive Conditions (e.g., Emphysema, Bronchitis, asthma attacks

 Restrictive Conditions (e.g., Fibrosis, Sarcoidosis, Alveolar Damage, Pleural Effusion)
 Vascular Diseases (e.g., Pulmonary Edema, Pulmonary Embolism, Pulmonary Hypertension)
 Infectious, Environmental and Other "Disease"s (e.g., Pneumonia, Tuberculosis, Asbestosis, Particulate Pollutants) Coughing is of major importance, as it is the body's main method to remove dust, mucus, saliva, and other debris from the lungs. Inability to cough can lead to infection. Deep breathing exercises may help keep finer structures of the lungs clear from particulate matter, etc.

The respiratory tract is constantly exposed to microbes due to the extensive surface area, which is why the respiratory system includes many mechanisms to defend itself and prevent pathogens from entering the body.

Disorders of the respiratory system are usually treated internally by a Pulmonologist.

Gas exchange in plants
Plants inhale and then use carbon dioxide gas in their bodily functions, and then exhale waste oxygen gas, as opposed to animals, which inhale oxygen and exhale carbon dioxide.

Plant respiration is limited by the process of diffusion. Plants take in carbon dioxide through holes on the undersides of their leaves known as stoma. However, most plants require little air. Most plants have relatively few living cells outside of their surface because air (which is required for metabolic content) can penetrate only skin deep. However, most plants are not involved in highly aerobic activities, and thus have no need of these living cells.

स्वया दिसं
 Liquid breathing
 Aquatic respiration
 Involuntary control of respiration
 Gill
 Respiratory tract

श्रोत
 Perkins, M. 2003.  Respiration Power Point Presentation. Biology 182 Course Handout. Orange Coast College, Costa Mesa, CA.
 Medical Dictionary

पिनेयागु स्वापूतः
 Science aid: Respiratory System A simple guide for high school students
 Introduction to Respiratory System
 A high school level description of the respiratory system

Exercise physiology
Respiratory system
एनाटोमी

रेस्पिरेटरी सिस्टम


is a Japanese musician and artist. She is the widow of John Lennon. Before she married Lennon she was married to Toshi Ichiyanagi from 1956 to 1963 and Anthony Cox from 1963 to 1969. She has two children, Kyoko Chan Cox (with Cox) and Sean Lennon (with Lennon).

Early life
Both of her parents came from wealthy families. Her father, who was a descendant of a former Emperor of Japan, had been a concert pianist before giving up music to become a banker. Ono was tutored privately, then sent to exclusive private schools, studying classical music and art, and also learning English. She visited the United States before World War II with her family. Her father was on a business trip to the U.S. when the war began, and was  with many other Japanese in the country. He was not able to communicate with his family for many years. Ono's mother took her, her brother and sister away from Tokyo, and they stayed in a rural area.

After the war ended, the family was reunited, and moved to New York for her father's job. Ono enrolled in Sarah Lawrence College, but quit during her third year. She became interested in  art and music, and began writing poetry. Many of her poems were instructions, for creating pieces of art. She later published some of these in a book, titled Grapefruit. Her parents were not happy that Ono chose to make her own way, rather than following her family's wishes for her life. When she married Toshi Ichiyanagi, a young pianist, her parents  her.

The marriage did not work out, and Ono rented a loft apartment of her own. She became friends with local artists in New York, including Andy Warhol and a group called Fluxus. She hosted small parties and "happenings" for her artist friends, and began to do artwork of her own. This brought her some notoriety in time, but not fame. She remarried, to Tony (Anthony) Cox, and they had a daughter, named Kyoko.

Marriage to Lennon
Ono went to London with Cox and Kyoko during 1966, to promote her career as an artist. John Lennon, who was a member of The Beatles, went to one of her art shows. He enjoyed the  (fantasy-like) quality of her work. Ono and Lennon became friends, and later lovers, as each lost interest in their spouses. Lennon wanted them to be together as much as possible. He broke a rule the Beatles had never to bring a wife or girlfriend to their recording sessions. He brought her along anytime he could. They were married in March 1969, after they were both divorced.

Many Beatles fans blamed Ono for "breaking up" the band through her influence on Lennon. He seemed to many people to have "gone crazy" since meeting her. Some suggest that Ono simply encouraged Lennon to do things he'd already wanted to do, but let himself be talked out of doing in the past – including quitting the Beatles. Ono and Lennon started a new, part-time group they called the Plastic Ono Band. They also tried to have a baby together. Ono miscarried several times, until their son Sean Lennon was born in 1975, on Lennon's 35th birthday. Ono was also able to  with her family, during the 1970s.

Ono was Lennon's "muse", inspiring his music and his creative side, for the rest of his life. The two worked together on both his post-Beatles records, and Ono's wish to also have a music career. She was more interested in "experimental" music than in classical or popular music. Ono's songs and unique style sounded strange to most listeners. It was offensive to many people, who thought Lennon should have either stayed with the Beatles, or made more music in their style. Ono changed her style, and began to write and record more pop songs, but her music never became popular. Years later, some younger musicians (such as The B-52's) admitted they had liked Ono's music. They were inspired by it, as Lennon had been.

Since 1980s
After Lennon's murderer in 1980, Ono recorded several solo albums. The first was titled Season of Glass. Her later records were praised by some music critics.

When Sean Lennon grew up, he also became a musician. He helped Ono to compile (collect and put in order) her old recordings, and make some new ones. She also revived some of her earlier artwork, and gave the money made from sales and exhibits to charities. Ono recently (2006) appeared at the opening of Love, a Cirque du Soleil show featuring Beatles music, to help promote it.

References

1933 births
Feminists
Grammy Award winners
Living people
Japanese artists
Musicians from Tokyo
HuffPost writers and columnists
John Lennon

Yoko Ono


A fugue is a piece of music written for a certain number of parts (voices). It is a type of counterpoint with a precisely defined structure. It is based on a tune called the "subject" of the fugue. The word "fugue" comes from the Italian "fuga" meaning "flight".

How a fugue is written

A fugue is based on one particular tune. This tune is called the subject. Each part has an equal share in playing the subject. When we talk about the "parts" in a fugue we do not mean the "sections" of the piece but the number of voices needed to sing it or instruments to play it. A "3 part fugue" means a fugue written for three voices or instruments.

Fugues can be in 2, 3, 4, 5 or even 6 parts. The more parts there are the harder it is to write a fugue because each part has to sound interesting by itself, but together they must also make sense. 3, 4 and 5 part fugues are usual.

A fugue always starts with just one part playing the subject. Then the other parts come in one at a time until they are all playing. When the second part comes in it will always be half an octave higher or lower than the beginning (musicians say: "on the dominant", meaning that it starts on the 5th note of the scale instead of the "tonic" or 1st note). This called: the answer. The third part to come in will be the "subject" (in the tonic once again) and the fourth part will be another answer, etc.

If the answer is an exact transposition of the subject (i.e. exactly the same but in the dominant key) it is called a real answer. Sometimes one or two notes have to be changed so that the music sounds right. This is called a tonal answer. For example: a subject that starts with a rising "doh – soh" (an interval of a fifth) will be answered by a rising "soh – doh" in the answer (an interval of a fourth).

When the second part comes in with the answer the first part will have to play something else, called a countersubject. If this "something else" is used every time in the piece to accompany the answer then it is called a regular countersubject. The countersubject should sound nice, and be grammatically correct, whether it is on top or below the subject. This is called "invertible counterpoint".

If a part is not playing a countersubject it may just be playing a "free part".

A redundant entry is the repetition of the subject or answer in a voice in which one or two of the aforementioned have already been stated.

Sometimes entries overlap. This is called stretto (NB "stretto" also has a different meaning in music: "hurried").

If none of the parts are playing the subject or answer (i.e. they are all playing free parts) this is called an episode. If it happens during the first section (exposition) then it is called a codetta.

Because a fugue is a piece which puts several lines of melody together it is a form of contrapuntal music.

A fugue usually has three sections: the first section is called the "exposition". This lasts until all the parts have entered. The middle section will go through various keys (modulate), and the final section will be back in the main key (tonic), and all the parts will probably play the subject or answer in turn once more.

Composers who wrote fugues

The fugue became a very popular form of music in the Baroque period. It was often played after a prelude. The most famous composer of fugues was Johann Sebastian Bach. He wrote two books, each with 24 Preludes and Fugues, called The Well-Tempered Clavier (in German: Das Wohltemperierte Klavier). Each book has a prelude and fugue in a different major and minor key. He also wrote many Preludes and Fugues for organ, sometimes writing a passacaglia, fantasia or toccata instead of the prelude, as in the case of the famous Toccata and Fugue in D minor.

Bach's fugues became models for future generations. Composers from later periods studied Bach's fugues in order to learn how to write their own. For example, Dmitri Shostakovich, a 20th century composer, wrote preludes and fugues in the same style as Bach.

Fugues can be very dramatic and exciting as each part comes in one at a time and the music builds up. This is why many composers have ended long works with a fugue. It helps to build up the tension towards the end of the work. Even if it is not a strict fugue it might be "fugal" i.e. it might start off as a fugue and then become freer (adding extra parts etc.). Beethoven uses fugues a lot in the last movement of his late piano sonatas. Benjamin Britten writes a fugue at the end of A Young Person's Guide to the Orchestra. At the end of his song for choir called "The Twelve" William Walton starts a fugue with a very long, fast and complicated fugues subject, but it soon develops into a much freer piece of music.

Musical forms

Fugue