| 0 | | Feast of St. Quirinus of Neuss, Patron of Knights, Soldiers, and Horsemen |
| 0 | | Armed Forces Day in the Republic of Georgia, Camerone Day in the French Foreign Legion, and was Imperial Army Day in Japan, from 1906-1945 |
| 0 | | International Jazz Day |
| 0 | | National Bugs Bunny Day -- Learn More |
| 37 | | Roman governor Lucius Vitellius, successor to Pontius Pilate, arranged a sacrifice to "the God of the Jews" at the Temple of Jerusalem. |
| 311 | | Roman Emperor Galerius issues an edict of toleration for Christians |
| 313 | | Licinius defeated rival Roman Emperor Maximinus Daia in the Battle of Tzirallum -- Learn More |
| 462 | | Solar eclipse visible in Greece |
| 1305 | | Massacre of Adrianople: Byzantine Emperor Michael IX Palaiologos contrives the destruction of the Catalan Company |
| 1349 | | Massacre of the Jews of Radolszell, Germany |
| 1492 | | Ferdinand & Isabella agree to bankroll Columbus |
| 1527 | | Treaty of Westminster: Anglo-French alliance against Spain |
| 1563 | | King Charles VI orders the Jews expelled from France |
| 1592 | | Marco Sciarra's brigands escorted poet Torquato Tasso through bandit-infested mountains around Itri -- Learn More |
| 1635 | | Treaty of Compiegne: Franco-Swedish alliance in the Thirty Years' War |
| 1789 | | George Washington was inaugurated as the First President of the United States, at Federal Hall, NY |
| 1794 | | Menin, Belgium: Austrians break out of a French siege |
| 1838 | | Nicaragua declares independence from the Central American Federation |
| 1848 | | Battle of Pastrengo: Piedmontese defeat the Austrians |
| 1849 | | Battle of the Villa Pamfili: The Garibaldini defeat the French outside Rome, who fall back on Civitavecchia |
| 1860 | | Battle of Fort Defiance: U.S. troops beat off a Navaho attack |
| 1861 | | Lincoln orders Federal troops to evacuate the Indian Territory |
| 1862 | | Skirmishing at Swift Run Gap, WV |
| 1863 | | Battle of Camerone: Heroic French Foreign Legion defense against an overwhelming Mexican force |
| 1864 | | Battle of Jenkins' Ferry: Inconclusive action bungled by both sides |
| 1871 | | American & Mexican bandits murder 144 Apaches in Arizona |
| 1900 | | USA annexes Hawaii |
| 1904 | | Christian Hülsmeye patents the "telemobiloscope," an early radar, which is totally ignored. |
| 1906 | | The Meiji Emperor reviews the Imperial Army on its return from victory over Russia, at the Yakusuni Shrine |
| 1937 | | General Douglas MacArthur marries Jean Faircloth |
| 1942 | | British troops evacuate Mandalay in Burma |
| 1942 | | Luzon: Japanese bombardment of Corregidor and harbor forts continues. |
| 1942 | | USS 'Peto' (SS-265) is launched, first submarine built on the Great Lakes, at Manitowoc |
| 1943 | | Bergen-Belsen Concentration Camp for Jews established |
| 1943 | | Chinese halt Japanese in Hupeh, ending threat to Chungking. |
| 1943 | | Panay: USS 'Gudgeon' (SS-211) conducts supply mission to Filipino guerrillas |
| 1944 | | U.S. carrier aircraft begin two day raid on Truk |
| 1945 | | American & Soviet forces link up at Torgau in Germany |
| 1945 | | Okinawa: Kamikaze attacks continue on the U.S. fleet. |
| 1945 | | Red Army liberates the Ravensbruck concentration camp |
| 1945 | | Lt. Raqymjan Qoshqarbaev raised the Red Banner over the Reichstag Building in Berlin |
| 1961 | | Fidel Castro receives the Lenin Peace Prize |
| 1980 | | Abdication of Queen Juliana (1948-80) & Accession of Queen Beatrix of Netherlands (1980-2012), who also abdicates |
| 1980 | | Terrorists seize the Iranian Embassy in London |
| 2012 | | Abdication of Queen Beatrice of the Netherlands (r. 1980-2012), third Dutch Queen Regnant in a row since 1880, and the third to abdicate, and the accession of her son as William IV, the first Dutch king since 1880 |
| 2019 | | Akihito, Emperor of Japan since 1989, abdicated in favor of his son Naruhito |
| 1245 | | King Philip III "the Bold" of France (1270-1285), who bankrupted the kingdom trying to conquer Aragon |
| 1305 | | Roger de Flor (c. 38), Count of Malta and Captain of the Catalan Company, and c. 1,300 of his mercenaries were massacred at Adrianople by troops of Emperor Michael IX |
| 1309 | | King Kazimierz III "The Great" of Poland (1333-70) |
| 1595 | | Dukce Henri II de Montmorency, French general and admiral, executed By Richelieu for rebellion, 1632 |
| 1798 | | The US Department of the Navy |
| 1803 | | Albrecht Theodor Emil, Graf von Roon, Prussian soldier and military reformer, field marshal, d. 1879 |
| 1805 | | William Kerley Strong, Brig Gen, U.S., d. 1867 |
| 1893 | | Joachim von Ribbentrop, inept German soldier, Nazi politician and Foreign Minister (1938-1945), war criminal, executed 1946. |
| 1908 | | 106th Rescue Wing, oldest Air Guard unit, formed as the First Company, Signal Corps, 71st Regiment, NYNG |
| 1909 | | Queen Juliana of the Netherlands (1948-80), d. 2004 |
| 1938 | | Bugs Bunny, sometime U.S. Marine |
| 1946 | | King Carl XVI Gustav of Sweden (1973- ) |
| 1993 | | The World Wide Web |
| 313 | | Gaius Valerius Galerius Maximinus Daia, c.42, erstwhile Roman Emperor (305-312), possibly of despair over his defeat or maybe just poisoned -- Learn More |
| 535 | | Queen Amalasuntha of the Ostrogoths (516-534), 40, strangled by order of her husband Theodahad, who assumes the throne (534-536), |
| 1524 | | Pierre Terrail, Seigneur de Bayard, "The knight without fear nor equal," at c. 50, gunshot at the Sesia, Italy -- Learn More |
| 1632 | | Johann Tserclaes, 73, Count of Tilly, Imperial field marshal, kia Ingolstadt |
| 1632 | | Sigismund III Vasa, 65, King of Poland and Grand Duke of Lithuania (1657-1632), King of Sweden (1592-1599) |
| 1792 | | John Montague, Earl of Sandwich, naval officer, bon vivant, culinary innovator, at 73 |
| 1828 | | King Shaka zan Senzagakona of the Zulu (1816-1828), murdered at c. 41, by his brothers |
| 1847 | | Archduke Charles of Austria, Napoleon's "Great Enemy," at 75 -- Learn More |
| 1864 | | William Read Scurry, 43, Brig. Gen., C.S.A., kia, Battle of Jenkins' Ferry |
| 1934 | | Gen. Hugh L. Scott, U.S. Army chief-of-staff, at 80 -- Learn More |
| 1945 | | Adolph Hitler (56) and Eva Braun (33), suicide |
| 1945 | | Col. William O. Darby, of "Darby's Rangers," kia at 34 near Lake Garda, while serving as Assistant Commander, 10th Mountain Div |
| 1972 | | King Ntare V Ndizeye of Burundi (1966-1972), 24, murdered |
| 1995 | | Pasquale Virgilio, Italian soldier, American businessman, at 84 -- Learn More |