London is the capital city of England and the United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who called it Londinium.
Greater London covers an area of 1,583 square kilometres, an area which had a population of 7,172,036 in 2001 and a population density of 4,542 inhabitants per square kilometre. London has a temperate oceanic climate, similar to much of southern Britain. London interestingly receives less precipitation in a year than Rome at 834 mm, or Bordeaux at 923 mm. Winters are generally chilly to cold with frost usually occurring in the suburbs on average twice a week from November to March. Snow usually occurs about 4 or 5 times a year mostly from December to February.