The English Football League (EFL) is a league competition featuring professional football clubs from England and Wales. Founded in 1888 as the Football League, the league is the oldest such competition in world football. It was the top-level football league in England from its foundation in the 19th century until 1992, when the top 22 clubs split away to form the Premier League.
The league has 72 clubs evenly divided into three divisions, which are known as the Championship, League One and League Two, with 24 clubs in each division. Promotion and relegation between these divisions is a central feature of the League and is further extended to allow the top Championship clubs to exchange places with the lowest-placed clubs in the Premier League, and the bottom clubs of League Two to switch with the top clubs of the National League, thus integrating the League into the English football league system. Although primarily a competition for English clubs, clubs from Wales – currently Newport County and Cardiff City – also take part, while in the past Swansea City, Wrexham, Merthyr Town and Aberdare Athletic have been members.
The Football League has been associated with a title sponsor between 1983 and 2016. As this sponsor changed over the years the league too has been known by various names. Starting with the 2016–17 season, the league has moved away from having a title sponsor, rebranding itself as the English Football League (EFL), with a goal of having the EFL brand recognized in a similar way to the EPL brand of the English Premier League.
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