Éamon de Valera they were elected they would take the Oath of Allegiance. Forced into a corner, and faced with the option of staying outside politics forever or taking the oath and entering, de Valera and his TDs took the Oath of Allegiance on 12 August 1927, though de Valera himself described the Oath as "an empty political formula". De Valera never organised Fianna Fáil in Northern Ireland and it was not until 7 December 2007 that Fianna Fáil was registered there by the UK Electoral Commission. In the 1932 general election Fianna Fáil secured 72 seats and became the largest party in
Rúaidhrí de Valera 1947, de Valera became the Archaeological Officer for Ordnance Survey Ireland which permitted him to develop the Survey of the Megalithic Tombs of Ireland project. He went on to write significant papers on Irish prehistory which contributed to his doctorate, awarded in 1954. In 1957, de Valera was appointed Chair of Celtic Archaeology at University College Dublin where he worked to enlarge the department whilst continuing to publish on Irish chamber tombs, especially the Court cairns which he proposed first developed in the west of the country. De Valera later excavated at the Mound of the Hostages at Tara. He