First mentioned in Anglo Saxon chronicles of 1007, the town of Watford, in Hertfordshire, United Kingdom, was never listed in the Domesday Book, and remained a small rural community ruled by a succession of feudal lords for many centuries, becoming a market town during the 18th century. The Industrial Revolution of the late 18th and 19th centuries brought industry to the town, accelerated by the arrival of both the Grand Union Canal and the railway. As the factories and mills fell into ruin and disappeared, Watford became an important commercial centre for the Home Counties. Watford these days has a population of just under 80,000 and is well known for its football club Watford FC, and its chairman musician Elton John who grew up in the area. Watford Map.