The head of government of the Republic of Ireland has gone by several different titles since the formation of the country in 1919. Under the short-lived Irish Republic of 1919âÂÂ1922, the head of government was known first as the President of Dáil ÃÂireann and later as the President of the Republic. Under the Irish Free State of 1922âÂÂ1937, the head of government was the President of the Executive Council. There also briefly existed, immediately before the creation of the Irish Free State, an interim office of Chairman of the Provisional Government. For a brief period in 1921, the offices of President of the Republic and Chairman of the Provisional Government existed simultaneously. Since 1937, the Taoiseach heads a cabinet called the Government.