| 89 | BC | Social War: Sulla captures Stabiae from the Italiotes |
| 58 | BC | Cicero sails into exile from Brindisium |
| 0 | | Feast of St. Catherine of Siena, Patron of Italy and the U.S.A. |
| 711 | | Tariq ibn Ziyad’s Moorish army landed at Gibraltar, to overthrow Visigothic Spain, initiating a multigenerational conflict that ended in 1492 -- Learn More |
| 1091 | | Battle of Monte Levunium: Byzantine Emperor Alexius I Comnenus defeats the Pechenegs |
| 1289 | | Sultan Quala'un of Egypt captures Tripoli, Lebanon, from the Crusaders |
| 1429 | | Joan of Arc breaks the English siege of Orleans |
| 1524 | | Battle of Sesia Romagnano: Spanish defeat the French |
| 1616 | | Naval Battle of Euboea: Tuscans defeat the Turks |
| 1661 | | China invaded and occupied Taiwan |
| 1670 | | Emilio Altieri elected Pope as Clement X (1670-1676) |
| 1814 | | USS 'Peacock' captures HMS 'Epervier' |
| 1861 | | Maryland House of Delegates votes against secession |
| 1863 | | Battle of Chancellorsville begins |
| 1898 | | Cienfuegos, Cuba: US and Spanish warships exchange fire |
| 1901 | | Anti-Semitic riots in Budapest |
| 1916 | | The Irish "Easter Rebellion" ends (from the 24th) |
| 1926 | | Franco-American accord on WW I war debts |
| 1932 | | Navy Lt., j.g., Thomas Massie, mother-in-law Grace Hubbard Fortescue, and two accomplices were convicted of murder in Hawaii -- Learn More |
| 1935 | | Fleet Problem XVI began in the "North Pacific Triangle -- Learn More |
| 1940 | | King Haakon VII fled to England as the Nazis overran Norway |
| 1942 | | Burma: Japanese capture Lashio |
| 1942 | | Dutch and French Jews ordered to wear a yellow star |
| 1943 | | Dietrich Bonhoffer is arrested by Nazis |
| 1943 | | Teop, Solomon Is: USS 'Gato' (SS-212) lands coastwatchers & evacuates missionaries. |
| 1945 | | Adolf Hitler married Eva Braun -- Learn More |
| 1945 | | Burma: Japanese army evacuates Rangoon |
| 1945 | | RAF drops food to isolated areas in the Netherlands |
| 1945 | | US troops liberated the Nazi concentration camp at Dachau |
| 1946 | | Tokyo: 28 former Japanese leaders indicted as war criminals |
| 1970 | | US & South Vietnamese troops invade Cambodia |
| 1975 | | the last US personnel pulled out of Vietnam |
| 1991 | | Croatia declares independence from Yugoslavia |
| 1665 | | James FitzJames Butler, later the Second Duke of Ormonde, Anglo-Irish soldier, later Commander-in-Chief and Captain-General, charged with treason, fled abroad and joined the Jacobites, d. 1745 |
| 1762 | | Jean-Baptiste Jourdan was born, French soldier who rose from private to Marshal of the Empire, d. 1833 -- Learn More ("I didn't") |
| 1815 | | Abram Duryee, Brig Gen, U.S., d. 1890 |
| 1818 | | Tsar Alexander II of Russia (1855-81), blown up 1881 |
| 1837 | | Georges Ernest Jean-Marie Boulanger, 54, French general, frustrated putchist, suicide in 1891, on the grave of his mistress |
| 1873 | | Francis John William Harvey, Royal Marine who received a posthumous Victoria Cross for Jutland -- Learn More |
| 1875 | | Rafael Sabatini, author ("The Sea Hawk", "Captain Blood"), d. 1950 |
| 1876 | | Zewditu, daughter of Menelik, first Empress Regnant of Ethiopia (1916-1930) |
| 1901 | | Hirohito, the "Showa" Emperor of Japan (1926-89), amateur biologist, unindicted war criminal |
| 1932 | | Alexei A Gubarev, Czech cosmonaut (Soyuz 17, 28) |
| 1953 | | Nikolai Nikolayevich Budarin, Russia, cosmonaut |
| 1380 | | St. Catherine of Siena (33), who wasn't afraid of anyone, Patron of Italy |
| 1630 | | Théodore-Agrippa d'Aubigné, 78, French Huguenot soldier-poet, in exile |
| 1676 | | Dutch sea dog Michiel de Ruyter, by cannonball at 69, during a naval battle off Syracuse |
| 1688 | | Frederick William, 68, "The Great Elector" of Brandenburg & Duke of Prussia (1640-1688), father of the Prussian Army |
| 1862 | | Timothy Webster (40), American patriot, executed by the Confederacy as a spy |
| 1918 | | Gavrilo Princip, assassin of Archduke Franz Ferdinand in 1914, in jail at 23 of TB |
| 1926 | | Benno Alexandrovich von Siebert, Russian diplomat, German spy, at 59 -- Learn More |
| 1956 | | Wilhelm Josef Franz Ritter von Leeb, 79, German soldier, field marshal, defensive theoretician |