September 23, 1641The Gaelic Catholics of Ulster Stage an Uprising Against the Scottish Presbyterian Planters
September 23, 1678The Earl of Mar Was Commissioned to Raise a Regiment Nicknamed Earl of Mars Gray Breeks Which Later Became the Royal Scots Fusiliers.
September 23, 1798British Gen. Trench Attacks the French and Irish Left Behind by Humbert to Hold Killela.
September 23, 1798Second Battle of Killala. Final Surrender of Combined French and Irish Forces to the English
September 23, 2002The Listowel Races in Co. Kerry Begin. for the First Year in Its History, Which Dates to 1858, It Will Be a Seven-Day Meeting.