On August 3, 1916, Sir Roger Casement, an Irish nationalist and humanitarian, was executed by hanging in Pentonville Prison, London. His death followed his conviction for treason due to his efforts to secure German aid for the 1916 Easter Rising. Casement had attempted to land arms in Ireland from a German submarine, but the mission failed, leading to his capture. His execution sparked international outcry and solidified his status as a martyr for Irish independence. The British government's decision to proceed with his execution, despite pleas for clemency, further fueled nationalist sentiment in Ireland.
