London (the capital city of England and the United Kingdom) has a history going back over 2,000 years. In the main time, it has grown to one of the most significant financial and cultural capitals on Earth. It has experienced plague, devastating fire, civil war, aerial bombardment, terrorist attacks, and widespread rioting. The City of London is its historic core and today is its primary financial district, though it now represents a tiny part of the wider metropolis of Greater London.
According to the legendary Historia Regum Britanniae, by Geoffrey of Monmouth, London was founded by Brutus of Troy about 1000–1100 B.C. after he defeated the native giant Gogmagog; the settlement was known as Caer Troia, Troia Nova (Latin for New Troy), which, according to a pseudo-etymology, was corrupted to Trinovantum. Trinovantes were the Iron Age tribe who inhabited the area prior to the Romans. Geoffrey provides prehistoric London with a rich array of legendary kings, such as Lud (see also Lludd, from Welsh mythology) who, he claims, renamed the town Caer Ludein, from which London was derived, and was buried at Ludgate.