📜 This Day in History
July 3
- 324Civil wars of the Tetrarchy: Roman emperor Constantine the Great defeated his former colleague Licinius at the Battle of Adrianople.
- 1810Mauritius campaign of 1809–1811: A French frigate squadron under Guy-Victor Duperré defeated a convoy of three British East Indiamen near the Comoro Islands.
1940Second World War: The Royal Navy attacked the French fleet at Mers El Kébir, fearing that the ships would fall into Axis hands after the French–German armistice.- 1970The Troubles: The British Army began the Falls Curfew in Belfast, Northern Ireland, which resulted in greater Irish republican resistance.
- 1988The US Navy warship Vincennes shot down Iran Air Flight 655 over the Persian Gulf, killing all 290 people aboard.
- 2017In the U.S. state of Arizona, the Boundary Fire burned out after 32 days, burning 17,788 acres (7,199 ha) of the Coconino and Kaibab National Forests.
