London is the capital and most populous city of England and the United Kingdom. London is often regarded as a world cultural capital.

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Standing on the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it Londinium.

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London's ancient core, the City of London, largely retains its 1.12-square-mile medieval boundaries.  London is a leading global city in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism and transportation.It is the world's largest financial centre and has the fifth or sixth largest metropolitan area GDP in the world.