| 49 | BC | Pompey and his army take ship for Greece from Brindisi, besieged by Caesar |
| 45 | BC | Battle of Munda: Caesar defeats the last Pompeians, in Spain |
| 0 | | Feast of St Patrick, Patron of Ireland and of Engineers, and that of St. Gertrude of Nivelles, Patron of Cats and Gardeners |
| 180 | | Commodus becomes sole Roman Emperor (180-193), without having murdered Marcus Aurelius |
| 455 | | Petronius Maximus becomes Roman Emperor (Mar 17-May 22, 455) |
| 1040 | | Hardthacanute, King of Denmark, becomes King of England (1040-1042) |
| 1058 | | Malcolm III Canmore becomes King of Scotland |
| 1229 | | Excommunicated Holy Roman Emperor Frederick II Hohenstaufen liberated Jerusalem from the Saracens |
| 1328 | | Treaty of Edinburgh: England recognizes Scottish independence |
| 1431 | | Battle of Arzanello: The Visconti defeat the Florentines |
| 1521 | | Ferdinand Magellan reaches the Philippines |
| 1526 | | French King Francis I, released from Spanish captivity, promptly breaks his word, resumes war -- Learn More |
| 1762 | | First St Partick's Day parade in New York City |
| 1776 | | British forces evacuate Boston; George Washington orders an extra gill of whiskey to every Irish soldier in the army |
| 1800 | | HMS 'Queen Charlotte' burns at Livorno, 673 of 829 aboard die |
| 1861 | | Proclamation of the Kingdom of Italy |
| 1863 | | Battle of Kelly's Ford, VA |
| 1864 | | Naval battle of Jasmond Sound: the Danes defeat the Prussians |
| 1876 | | Gen Crook raids Cheyenne & Oglala-Sioux Indian camps |
| 1886 | | Carrollton Massacre, 20 blacks killed in Mississippi |
| 1913 | | Franklin D. Roosevelt was appointed Assistant Secretary of the Navy (1913-1921) -- Learn More |
| 1917 | | Tsar Nicholas II of Russia abdicates the throne (1894-1917), murdered 1918 |
| 1931 | | Stalin expelled Lenin's wife Krupskaya from of the Central Committee of the Communist Party of the USSR |
| 1932 | | German police raid Hitler's headquarters |
| 1942 | | Belzec Concentration Camp opens |
| 1942 | | MacArthur flies from Mindanao to Australia in a B-17. |
| 1944 | | Admiralty Is: 1st Cav Div captures Lorengau airfield, Manus |
| 1945 | | B-29s raid Kobe, c. 15,000 casualties. |
| 1959 | | the Dalai Lama fled Chinese controlled Tibet for India |
| 1966 | | US mini-sub locates a missing H-bomb in the Mediterranean off Palomares, Spain |
| 1969 | | Golda Meir becomes Israeli PM (1969-1974) |
| 1992 | | Arab terrorists bomb the Israeli embassy in Buenos Aries, 28 die, 300 injured |
| 1231 | | Shijo, 87th emperor of Japan (1232-1242) |
| 1473 | | King James IV of Scotland (1488-1513) |
| 1720 | | Heinrich Wilhelm von Freytag, German soldier, Imperial Field Marshal, still in the field at 72, d. 1798 |
| 1804 | | James Bridger, mountain man, d. 1881 |
| 1828 | | Patrick Cleburne, Irish-born Confederate Maj. Gen., kia 1863, Battle of Franklin |
| 1832 | | Walter Quintin Gresham, Brig Gen., U.S., d. 1895 |
| 1843 | | Henry Ware Lawton, Volunteer of 1861, later Maj. Gen., highest ranking officer killed in action in the Philippine-American War, 1899 -- Learn More |
| 1916 | | The Imperial Japanese Naval Air Service |
| 1930 | | James B Irwin, USAF, astronaut (Apollo 15) |
| 1936 | | Thomas K Mattingly II, USN, astronaut |
| 45 | BC | P. Attius Varus & Titus Labienus, Pomepeian generals, kia at Munda, Gnaeus Pompeius, executed |
| 180 | | Marcus Aurelius, of plague at 58, soldier-philosopher, Emperor (161-180) |
| 461 | | St Patrick |
| 1040 | | King Harold I "Harefoot" of England (1035-1040), c. 24. |
| 1058 | | King Lulach I of Scotland (Aug 15, 1057-Mar 17, 1058), at c. 28 |
| 1272 | | Go-Saga, 51, 88th Emperor of Japan (1242-1246), abdicated |
| 1516 | | Giuliano de' Medici, Lord of Florence, at 37 |
| 1704 | | Baron Menno van Coehoorn, fortification engineer, at 63 |
| 1830 | | Laurent de Gouvion Saint-Cyr, 65, Marshal of France |
| 1845 | | Adm. Amilcare Paulucci delle Roncole, 72, naval officer, Bourbon Kingdom of Naples, Napoleonic Kingdom of Italy, Austrian Empire |
| 1849 | | King William II of the Netherlands (1840-1849), 56, who had commanded at Waterloo |
| 1864 | | Luigi Ghilardi, 53, liberal soldier-of-fortune, Garibaldino, Juarista, executed by the French |
| 1891 | | Napoléon Joseph Charles Paul Bonaparte -- "Plon-Plon", 68, nephew of Napoleon, French politician and soldier (Crimea, Italy) |
| 1933 | | Charles King, soldier, author, arguably the last Civil War veteran to serve in uniform, died at 88 |
| 1957 | | Pres Ramon Magsaysay of the Philippines (1953-1957), 49, plane crash |
| 1998 | | Ernst Jünger, 102, German WW I hero (17 wounds, Iron Cross & Pour le merite), novelist ("Storm of Steel"), anti-Nazi nationalist |