   colchester united football club is an english professional football club based in colchester, essex. the club compete in league one, the third tier of the english football league system. founded in 1937, the club spent its early years playing in the southern football league until they were elected to the football league in 1950. between 1950 and 1990, colchester spent their time between the third division and fourth division, during which time they produced one of their most memorable results, a 3â2 victory in the fifth round of the fa cup over don revie's leeds united in 1971. colchester united were relegated to the football conference in 1990 following a demise in the late 1980s, but won the conference title in 1992 to make a swift return to league football. they achieved promotion to the second division in [[199
1937_establishments_in_England Association_football_clubs_established_in_1937 Colchester Colchester_United_F.C. Football_League_clubs Football_clubs_in_England Football_clubs_in_Essex Southern_Football_League_clubs Sport_in_Essex