Chelsea Football Club (//) is a professional football club based in Fulham, London, England that competes in the Premier League, of which they are reigning champions. Founded in 1905, the club's home ground since then has been Stamford Bridge.
Chelsea had their first major success in 1955, when they won the English league championship. They then won various cup competitions between 1965 and 1971. The club's greatest period of success has come during the last two decades; winning 21 trophies since 1997. Chelsea have won six national league titles, seven FA Cups, five League Cups and four FA Community Shields, one UEFA Champions League, two UEFA Cup Winners' Cups, one UEFA Europa League and one UEFA Super Cup. Chelsea are the only London club to win the UEFA Champions League, and one of five clubs and the first British club, to have won all three of UEFA's major club competitions