West Ham United F.C. supporters are the followers of the London-based West Ham United Football Club, who were founded as Thames Ironworks in 1895. There are 700,000 fans on the club's database and over 2,300,000 likes on Facebook. The club's website is in the top ten most visited websites for English football clubs by people in the USA. Their fans are also associated with a once-notorious hooligan element and have long-standing rivalries with several other clubs, most notably Millwall.