Chelsea Football Club

Chelsea are an English football club based in West London. Founded in 1905, they play in the Premier League and have spent most of their history in the top tier of English football. Chelsea have been English champions four times, FA Cup winners six times and League Cup winners four times. They have also been successful in Europe, winning the UEFA Cup Winners' Cup twice.

The club had their first major success in 1955, when they won the league championship. Chelsea won several cup competitions during the 1960s and 1970s, but after that did not win another major title until 1997. The past decade has been the most successful period in Chelsea’s history, capped by winning Premier League titles in 2005, 2006 and 2010, and reaching their first UEFA Champions League final in 2008.

Despite their name, the club are not based in Chelsea, but in neighbouring Fulham. The club's home is the 41,841 capacity Stamford Bridge football stadium in Fulham, where they have played since their establishment. In 2003, they were bought by Russian oil magnate Roman Abramovich.

Chelsea's regular kit colours are royal blue shirts and shorts with white socks, the combination used since the 1960s. The club crest has been changed several times in attempts to modernise or re-brand; the current crest, featuring a ceremonial lion holding a staff, is a modified version of one first adopted in the 1950s. The club has sustained the fifth highest average all-time attendance in English football. Their average home gate for the 2009–10 season was 41,423, the fifth highest in the Premier League.