Birmingham City Football Club ( /ˈbɜrmɪŋɡəm ˈsɪti/) is a professional association football club based in the city of Birmingham, England. Formed in 1875 as Small Heath Alliance, they became Small Heath in 1888, then Birmingham in 1905, finally becoming Birmingham City in 1943. They were relegated at the end of the 2010–11 Premier League season and will play the 2011–12 season in the Football League Championship.