

Overview
London is the capital city of England and the United Kingdom. The ancient City of London to which the name originally belonged still retains its tiny mediaeval boundaries; but the name "London" has long applied more generally to the whole metropolis which has grown up around it.
An important settlement for around two millennia, London is today one of the world's leading business, financial and cultural centres, and its influence in politics, education, entertainment, media, fashion and the arts all contribute to its status as one of the major global cities.
London is the most populous city within city limits in the European Union with an official population of 7.5 million (as of mid-2006) and has a metropolitan area population of between 12 and 14 million people. Its diverse population draws from a wide range of peoples, cultures and religions, speaking over 300 different languages.
It is an international transport hub, with five international airports and a large port. It serves as the largest aviation hub in the world, and its main airport, the multi terminal Heathrow, carries more international passengers than any other airport in the world. It also has Europe's largest underground railway system when measured by route length.
London is a major tourist destination, with four world heritage sites and numerous iconic landmarks such as the Houses of Parliament, Tower Bridge, the Tower of London, Westminster Abbey, Buckingham Palace and the London Eye among its many attractions, along with famous institutions such as the British Museum and the National Gallery. Its main geographical feature is the River Thames which runs through the city from the south-west to the east.
History
Early London
Westminster Abbey is one of London's oldest and most important buildings.
Although there is some evidence of scattered Brython settlement in the area, the first major settlement was founded by the Romans in AD 43, following the Roman invasion of Britain. This settlement was called Londinium, commonly believed to be the origin of the present-day name, although a Celtic origin is also possible.
The first London lasted for just seventeen years. Around AD 61, the Iceni tribe of Celts led by Queen Boudica stormed London, burning it to the ground. The next, heavily-planned incarnation of the city prospered and superseded Colchester as the capital of the Roman province of Britannia in AD 100. At its height in the 2nd century AD, Roman London had a population of around 60,000. However, by the 3rd century AD, the city started a slow decline due to trouble in the Roman Empire, and by the 5th century AD, it was largely abandoned.
By 600 AD, the Anglo-Saxons had created a new settlement (Lundenwic) about 1 km upstream from the old Roman city, around what is now Covent Garden. There was probably a harbour at the mouth of the River Fleet for fishing and trading, and this trading grew until disaster struck in 851 AD, when the city's defences were overcome by a massive Viking raid and it was razed to the ground. A Viking occupation twenty years later was short-lived, and Alfred the Great, the new King of England, established peace and moved the settlement within the defensive walls of the old Roman city (then called Lundenburgh). The original city became Ealdwic ("old city"), a name surviving to the present day as Aldwych.
Subsequently, under the control of various English kings, London once again prospered as an international trading centre and political arena. However, Viking raids began again in the late 10th century, and reached a head in 1013 when they besieged the city under Danish King Canute and forced English King Ethelred the Unready to flee. In a retaliatory attack, Ethelred's army achieved victory by pulling down London Bridge with the Danish garrison on top, and English control was re-established.
Canute took control of the English throne in 1017, controlling the city and country until 1042, when his death resulted in a reversion to Anglo-Saxon control under his pious step-son Edward the Confessor, who re-founded Westminster Abbey and the adjacent Palace of Westminster. By this time, London had become the largest and most prosperous city in England, although the official seat of government was still at Winchester.
Norman and medieval London
The Great Fire of London destroyed many parts of the city in 1666.
Following a victory at the Battle of Hastings, William the Conqueror, the then Duke of Normandy, was crowned King of England in the newly-finished Westminster Abbey on Christmas Day 1066. William granted the citizens of London special privileges, while building a castle in the south-east corner of the city to keep them under control. This castle was expanded by later kings and is now known as the Tower of London, serving first as a royal residence and later as a prison.
In 1097, William II began the building of Westminster Hall, close by the abbey of the same name. The hall proved the basis of a new Palace of Westminster, the prime royal residence throughout the Middle Ages. Westminster became the seat of the royal court and government (persisting until the present day), while its distinct neighbor, the City of London, was a centre of trade and commerce and flourished under its own unique administration, the Corporation of London. Eventually, the adjacent cities grew together and formed the basis of modern central London, superseding Winchester as capital of England in the 12th century.
London grew in wealth and population during the Middle Ages. In 1100 its population was around 18,000, by 1300 it had grown to nearly 100,000. However disaster struck during the Black Death in the mid-14th century, when London lost nearly a third of its population. Apart from the invasion of London during the Peasants' Revolt in 1381, London remained relatively untouched by the various civil wars during the Middle Ages, such as the Barons' Wars and the Wars of the Roses.
After the successful defeat of the Spanish Armada in 1588, political stability in England allowed London to grow further. In 1603, James VI of Scotland came to the throne of England, essentially uniting the two countries. His enactment of harsh anti-Catholic laws made him unpopular, and an assassination attempt was made on 5 November 1605-the famous Gunpowder Plot.
Plague caused extensive problems for London in the early 17th century, culminating in the Great Plague in 1665-1666. This was the last major outbreak in Europe, possibly thanks to the disastrous fire of 1666. The Great Fire of London broke out in the original City and quickly swept through London's wooden buildings, destroying large swathes of the city. Rebuilding took over ten years.
Rise of modern London
A London street hit during the Blitz of World War IIFollowing London's growth in the 18th century, it became the world's largest city from about 1831 to 1925. This growth was aided from 1836 by London's first railways, which put countryside towns within easy reach of the city. The rail network expanded very rapidly, and caused these places to grow while London itself expanded into surrounding fields, merging with neighbouring settlements such as Kensington. Rising traffic congestion on city centre roads led to the creation of the world's first metro system-the London Underground-in 1863, driving further expansion and urbanisation. Because of this rapid growth, London became one of the first cities in human history to reach a population of one million, and was the first ever to surpass five million.
London's local government system struggled to cope with the rapid growth, especially in providing the city with adequate infrastructure. Between 1855 and 1889, the Metropolitan Board of Works oversaw infrastructure expansion. It was then replaced by the County of London, overseen by the London County Council, London's first elected city-wide administration.
The Blitz and other bombing by the German Luftwaffe during World War II killed over 30,000 Londoners and flattened large tracts of housing and other buildings across London. The rebuilding during the 1950s, 1960s and 1970s was characterised by a wide range of architectural styles and has resulted in a lack of architectural unity that has become part of London's character. In 1965 London's political boundaries were expanded to take into account the growth of the urban area outside the County of London's borders. The expanded area was called Greater London and was administered by the Greater London Council.
In the decades following World War II, large-scale immigration from Commonwealth countries and beyond transformed London into one of the most racially and culturally diverse cities in Europe. Integration of the new immigrants was not always smooth, with events such as the Brixton Riots in the early 1980s, but was certainly smoother than in other English regions and largely lacking in widespread support for far right organisations, unlike its European or American contemporaries.
An economic revival from the 1980s onwards re-established London's position as a pre-eminent international centre. However, as the seat of government and the most important city in the UK, it has been subjected to bouts of terrorism. Provisional Irish Republican Army bombers sought to pressure the government into negotiations over Northern Ireland, frequently disrupting city activities with bomb threats-some of which were carried out-until their 1997 cease-fire. More recently, a series of coordinated bomb attacks were carried out by Islamic extremist suicide bombers on the public transport network on 7 July 2005-just 24 hours after London was awarded the 2012 Summer Olympics.
Culture
Within the City of Westminster, the entertainment district of the West End has its focus around Leicester Square, where London and world film premieres are held, and Piccadilly Circus, with its giant electronic advertisements. London's theatre district is here, as are many cinemas, bars, clubs and restaurants, including the city's Chinatown district, and just to the east is Covent Garden, an area housing speciality shops. Shoreditch and Hoxton in the East End form a second, less mainstream, focus of bars, nightclubs, restaurants and galleries. Islington's one mile (2 km) long Upper Street, extending northwards from The Angel, has more bars and restaurants than any other street in the UK. It was also the first street in the UK to have wireless enabled for its cafes.
Europe's busiest shopping area is Oxford Street, a shopping street nearly one mile (2 km) long-which makes it the longest shopping street in the world-and home to many shops and department stores including Selfridges. The adjoining Bond Street in Mayfair is an extremely upmarket location, complemented by the Knightsbridge area-home to the Harrods department store-to the southwest, home to fashion, jewelery, and accessories design houses. The districts of Knightsbridge (Sloane Street), Mayfair (Bond Street, Brook Street), and Chelsea (King's Road) represent London's prestigious role in the world of fashion, home to Vivienne Westwood, Galliano, Stella McCartney, Manolo Blahnik, and Jimmy Choo among others, its renowned art and fashion schools cementing it an international centre of fashion alongside Paris, Milan and New York. Top global supermodels Naomi Campbell and Kate Moss come from South London; and actress Sienna Miller was raised in Chelsea. London also has a high number of street markets, including Camden Market for fashions and alternative products, Portobello Road for antiques, and vintage and one-off clothes, and Borough Market for organic and specialist foods.
The Trooping the Colour held in 2006 to mark the Queen's 80th birthday. It is held every year as a military parade performed by regiments of the Commonwealth and the British Army. London offers a great variety of cuisine as a result of its ethnically diverse population. Gastronomic centres include the Bangladeshi restaurants of Brick Lane and the Chinese food restaurants of Chinatown. Soho's variety of restaurants includes novelties such as Garlic and Shots - an entirely garlic restaurant, while more upmarket restaurants are scattered around central London, with concentrations in Mayfair, Knightsbridge and Notting Hill. Across the city, areas home to particular ethnic groups are often recognizable by restaurants, food shops and market stalls offering their local fare, and the large supermarket chains stock such items in areas with sizable ethnic groups.
There are a variety of regular annual events. The Caribbean-descended community in Notting Hill in West London organizes the colorful Notting Hill Carnival, Europe's biggest street carnival, every summer. The beginning of the year is celebrated with the relatively new New Year's Day Parade, while traditional parades include November's Lord Mayor's Show, a centuries-old event celebrating the annual appointment of a new Lord Mayor of the City of London with a procession along the streets of the City, and June's Trooping the Colour, a very formal military pageant to celebrate the Queen's Official Birthday.
http://en.wikipedia.org/wiki/London