| 58 | BC | Caesar arrived at Geneva, from which he began the conquest of Gaul |
| 47 | BC | Battle of the Nile: Caesar & Pharnaces defeat an Egypto-Optimate Army |
| 19 | BC | Triumph of Lucius Cornelisu Balbus the Younger, for victories in Africa; the last triumph held for anyone not a member of the imperial family -- Learn More |
| 0 | | Armed Forces Day in Myanmar |
| 0 | | Feast of St. Rupert of Salzburg, Patron of Salzburg and of Salt Miners |
| 1555 | | Marcello Cervini degli Spannochi elected Pope as Marcellus II (Mar 27-May 6 1555) |
| 1599 | | Elizabeth names her favorite, the Earl of Essex, Lt-Gen of Ireland |
| 1625 | | Charles I ascends the English and Scottish thrones, deposed and executed 1649 |
| 1794 | | Congress approves construction of 6 frigates, including USS 'Constitution' |
| 1799 | | USS 'Constitution' recaptures the American sloop 'Neutrality' from the French |
| 1802 | | the Wars of the French Revolution ended with the Treaty of Amiens -- Learn More |
| 1814 | | Andrew Jackson defeated the Muscogee/Creek Indians in the Battle of Horseshoe Bend - Learn More |
| 1863 | | Confederate President Jefferson Davis declares a day of fasting & prayer |
| 1865 | | Lincoln, generals Grant and Sherman, and admiral Porter met on the steamer 'River Queen' to plan the end of the Civil War -- Learn More |
| 1865 | | Battle of Mobile/Spanish Fort/Fort Morgan/Fort Blakely |
| 1933 | | Japan leaves the League of Nations |
| 1937 | | Pope Pius XI publishes anti-Nazi encyclical "Mit brennender Sorge" |
| 1940 | | Himmler orders building of the Auschwitz concentration camp |
| 1941 | | Britain leases bases in Trinidad to US for 99 years |
| 1941 | | Coup in Yugoslavia ousts Prince Paul's pro-Nazi regime, prompting Hitler to order an invasion |
| 1941 | | Takeo Yoshikawa begins spying on US installations on Oahu |
| 1942 | | Ceylon: Adm. James Somerville takes over the British Far Eastern Fleet |
| 1942 | | following heavy air attacks, the Royal Navy & the Commandos raided St. Nazaire, France -- Learn More |
| 1943 | | US troops attack Fonduk Pass, Tunisia |
| 1944 | | The Nazis murders 40 Jewish policemen in Riga, deport the Jewish children of Lovno, murder 2,000 Jews in Kauna, and transport 1,000 Jews from Drancy, France. to Auschwitz |
| 1945 | | B-29s begin mining Japanese waters |
| 1945 | | Wiesbaden falls to the US XX Corps |
| 1945 | | The last German V-2 rocket attack on Britain: 134 people, many of them Jewish, are killed Whitechapel, London |
| 1952 | | Attempted assassination of West German Chancellor Konrad Adenauer |
| 1958 | | First Secretary of the CP (since 1953) Nikita Khrushchev becomes premier of the USSR (1958-1964) |
| 1964 | | UN peacekeeping troops arrive on Cyprus |