Assassination of Sadi Carnot
On 24 June 1894, French President Sadi Carnot was assassinated by Italian anarchist Sante Geronimo Caserio in Lyon, France. A part of the Ère des attentats anarchist terrorist campaign (1892–1894), it led to a historic crackdown on French anarchist activities.
Source: Wikipedia — Assassination of Sadi Carnot (CC BY-SA 4.0)