Michael O'Flanagan States in April 1925 to help Sinn Féin contest a number of by-elections. That summer he was suspended from clerical duties and forbidden to say mass because of his nationalist activities and anti-clerical speeches he had made in America. In March 1926, the Sinn Féin ard fheis narrowly defeated de Valera's proposal to enter the Free State Oireachtas if the Oath of Allegiance were removed. O'Flanagan sided with the majority. De Valera left to found Fianna Fáil, which eclipsed Sinn Féin at the June 1927 election. O'Flanagan remained with the reduced Sinn Féin. Bishop Coyne died in July 1926, but
History of Sinn Féin Ireland in the early 2000s. This is a summary of the splits and mergers from the initial Sinn Féin party and the IRA and their successors. History of Sinn Féin Sinn Féin (""We Ourselves"", often mistranslated as "Ourselves Alone") is the name of an Irish political party founded in 1905 by Arthur Griffith. It subsequently became a focus for various forms of Irish nationalism, especially Irish republicanism. Its splits during the Irish Civil War in 1922 and again at the beginning of the Troubles in 1969 had dramatic effects on politics in Ireland. Sinn Féin today is a republican, left-wing