London  is the capital city of England  and the united kingdomIt is the most populous city in the United Kingdom, with a metropolita of over 13 million inhabitants. Standing on theriver , London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it . London’s ancient core, the Citi of London largely retains its 1.12-square-mile (2.9 km2) mediaeval boundaries and in 2011 had a resident population of 7,375, making it the smallest city in England. Since at least the 19th century, the term London has also referred to the metropolis developed around this core.[6] The bulk of this conurbation forms the  (coterminous with the London region), governed by the Mayor of London and the London Assembly.]