August 12, 1332Battle of Dupplin Near Perth in Which Edward Balliol Defeated the Regent, Earl of Mar.
August 12, 1821George IV Begins His Visit to Ireland; He Is Received Enthusiastically by O'Connell and Others
August 12, 1822Robert Stewart, Viscount Castlereagh, Commits Suicide by Cutting His Throat With a Penknife
August 12, 1870Sir Hubert Gough, Soldier and Participant in Curragh Mutiny of 1914, Is Born in Gurteen, Co. Waterford
August 12, 1920Terence MacSwiney, Lord Mayor of Cork, Arrested by British; He Immediately Goes on Hunger Strike