The Eskişehir Football League (Turkish: Eskişehir Futbol Ligi) was founded as a regional football league for Eskişehir based clubs in 1924. Although it was held a few years before 1924 already, it gained official status in 1924 as the national football association was founded in 1923 and began organising the regional leagues. In the period from 1924 to 1935, the winners of the Eskişehir League qualified for the former Turkish Football Championship. In 1940 Eskişehir Demirspor won the Turkish championship against Fenerbahçe, marking a turning point in Turkish football as clubs from Istanbul, Ankara, and İzmir were the dominating sides in those decades. By achieving this feat, they were included in the 1941 National Division, which included only the clubs of the three major regional leagues