Two different clubs bearing the name Derry City have played in the Republic of Ireland football league system: The original club, founded in 1928, played in the Northern Ireland football league system until 1972, when it was expelled from the Irish Football League due to issues related to The Troubles. The club then spent 13 years without a league until being admitted to the second level of the League of Ireland in 1985. Two years later, they earned promotion to the League of Ireland's first level, and continued there until their expulsion in 2009 for financial mismanagement.