how many times have chelsea won the premier league title
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Chelsea F.C. [SEP] Introduction
Chelsea Football Club are an English professional football club based in Fulham, London. Founded in 1905, the club competes in the Premier League, the top division of English football. Chelsea are among England's most successful clubs, having won over thirty competitive honours, including six league titles and six European trophies. Their home ground is Stamford Bridge. Chelsea won their first major honour, the League Championship, in 1955. The club won the FA Cup for the first time in 1970 and their first European honour, the UEFA Cup Winners' Cup, in 1971. After a period of decline in the late 1970s and 1980s, the club enjoyed a revival in the 1990s and had more success in cup competitions.