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2nd division positions have been calculated by adding 22 (Chelsea’s lowest league finish, 1961-62) for the purpose of scaling in the graph

Red dots represent relegation to Old Division 2

Green dots show promotion to Old Division 1

English Old Division 1 had 20 teams (1905-1915),22 (1919-1987), 21 (1987-1988), 20 (1988-1991) & 22 (1991-1992) at various points of time

Chelsea ended the 1914-15 season in a relegation position, but when the league was expanded after the First World War the club was invited to rejoin the First Division