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London
officially Greater London

Capital and largest city (pop., 2001: 7,172,036) of the United Kingdom, situated in southeastern England on the River Thames.

It is the political, industrial, cultural, and financial centre of the country. Formally known as the metropolitan county of Greater London (established 1965), it has an area of 659 sq mi (1,706 sq km) and consists of two regions: Inner London comprises 13 of London's 33 boroughs (including the original City of London), and Outer London encompasses the other 20 boroughs. Greater London is an administrative entity, with an elected mayor and assembly. Founded by the Romans as Londinium in the 1st century AD, it passed to the Saxons in the 6th century. City fortifications were destroyed by the Danes, who invaded England in 865, but were later rebuilt. William I (the Conqueror) established the central stronghold of the fortress known as the Tower of London. Norman kings selected Westmin