Fianna Fáil was founded on 23 March 1926 when a group of Dáil deputies led by Éamon de Valera split from the original Sinn Féin. This happened because de Valera's motion calling for elected members be allowed to take their seats in the Dáil, if and when the controversial Oath of Allegiance was removed, failed to pass at the Sinn Féin Ard Fheis. The new party adopted its name on 2 April of the same year. From the formation of the first Fianna Fáil government on 9 March 1932 until the 2011 general election, the party was in power for 61 of 79 years. Its longest continuous period in office was 15 years and 11 months (March 1932–February 1948). Its single longest period out of office, in that time, has been four years and four months (March 1973–July 1977). All eight of its party's leaders hav