This was the first use of physical force by the IRA acting on its own separate authority following the unilateral establishment of an Irish Parliament or First Dáil in Dublin after the 1918 elections, which Sinn Féin won.
This was the first use of physical force by the IRA, acting on local authority. By chance, on the same day the First Dáil was established in Dublin after the 1918 elections, which Sinn Féin won.