The Football League is a league competition featuring professional football clubs from Englan and Wales. Founded in 1888, it 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 FA Premier League. Since 1992 it has had 72 clubs evenly divided into three divisions, which are currently known as The Championship, League One, and League Two. 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 Football Conference, thus integrating the League into the English football league system. Although primarily a competition for English clubs, two clubs from Wales also take part, three until the relegation of Wrexham in 2008.