Introduce London in England with simple English words.

London is the capital of England and Britain, the largest metropolitan area in Britain and the largest urban area in the European Union. London is located on the Thames. It has been a major residence for two thousand years. Its history can be traced back to when the Romans established it. They called it London. The ancient heart of London, the City of London, largely retains its square-mile medieval border. At least since19th century, the name London also refers to the metropolis developed around this core. Most of the city is divided into the London area and the Greater London Administrative Region, which is managed by the elected mayor of London and the London Parliament.

London is a leading global city, and its advantages in art, commerce, education, entertainment, fashion, finance, health care, media, professional services, research and development, tourism and transportation all contribute to its outstanding position. It is the world's largest financial center alongside new york, with the fifth largest city GDP in the world (and the largest in Europe). It has the largest number of international tourists in the world, and London Heathrow Airport has the largest number of international tourists in the world. The 43 universities in London are the largest gathering places of higher education in Europe.