The Southern League (currently sponsored by Dr Martens and known as the Dr Martens League) is a football league for semi-professional and amateur teams. The premier division is two divisions below the Football League. Originally founded in 1900, the Southern League ran as one of three major amateur competitions (with the Isthmian League and the Northern Premier League) in tandem with the (professional) Football League until the professional game was broadened in the 1950s.