| | 558 - In Constantinople, the dome of the Hagia Sophia collapses. Justinian I immediately orders the dome rebuilt. |
| | 1274 - In France, the Second Council of Lyons opens to regulate the election of the Pope. |
| | 1429 - Joan of Arc ends the Siege of Orléans, pulling an arrow from her own shoulder and returning wounded to lead the final charge. The victory marks a turning point in the Hundred Years' War. |
| | 1697 - Stockholm's royal castle (dating back to medieval times) is destroyed in a huge fire (in the 18th century, it is replaced with the current Royal Palace). |
| | 1763 - Indian Wars: Pontiac's Rebellion begins - Chief Pontiac begins the "Conspiracy of Pontiac" by attacking British forces at Fort Detroit. |
| | 1824 - World premiere of Ludwig van Beethoven's Ninth Symphony in Vienna, Austria. Work was conducted by Michael Umlauf, under the deaf composer's supervision. |
| | 1832 - Greece is recognised independent by the Treaty of London. Otto of Wittelsbach, Prince of Bavaria is chosen King. |
| | 1836 - The settlement of Mayagüez, Puerto Rico is elevated to the royal status of villa by the government of Spain. |
| | 1840 - The Great Natchez Tornado strikes Natchez, Mississippi, killing 317 people. It is the second deadliest tornado in U.S. history. |
| | 1847 - In Philadelphia, the American Medical Association (AMA) is founded. |
| | 1864 - American Civil War: The Army of the Potomac, under General Ulysses S. Grant, breaks off from the Battle of the Wilderness and moves southwards. |
| | 1895 - In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention - the first in the world radio receiver. In the former Soviet Union this day is celebrated as Day of Radio. |
| | 1896 - H. H. Holmes is hanged in Philadelphia. |
| | 1915 - World War I: a German submarine U-20 sinks the RMS Lusitania, killing 1,198 people. |
| | 1920 - Kiev Offensive (1920): Polish troops led by Józef Piłsudski and Edward Rydz-Śmigły and assisted by a symbolic Ukrainian force captured Kiev only to be driven out by the Red Army counter-offensive a month later. |
| | 1920 - Treaty of Moscow (1920): Soviet Russia recognizes independence of the Democratic Republic of Georgia only to invade the country six months later. |
| | 1937 - Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrive in Spain to assist Franco's forces. |
| | 1945 - World War II: General Alfred Jodl signs unconditional surrender terms at Reims, France, ending Germany's participation in the war. The document will take effect the next day. |
| | 1946 - Tokyo Telecommunications Engineering (later renamed Sony) is founded with about 20 employees. |
| | 1947 - Kraft Television Theater debuts, running for the next 11 years. |
| | 1948 - The Council of Europe is founded during the Hague Congress. |
| | 1952 - The concept for the integrated circuit, the basis for all modern computers, is first published by Geoffrey W.A. Dummer. |
| | 1954 - Indochina War: The Battle of Dien Bien Phu ends in a French defeat (the battle began on March 13). |
| | 1960 - Cold War: U-2 Crisis - Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot Gary Powers. |
| | 1964 - Pacific Air Lines Flight 773, a Fairchild F-27 airliner, crashes near San Ramon, California, killing all 44 aboard; the FBI later reports that a cockpit recorder tape indicates that the pilot and co-pilot had been shot by a suicidal passenger. |
| | 1974 - West German Chancellor Willy Brandt resigns. |
| | 1992 - Michigan ratifies a 203-year-old proposed amendment to the United States Constitution making the 27th Amendment law. This amendment bars the U.S. Congress from giving itself a mid-term pay raise. |
| | 1992 - Space Shuttle Endeavour is launched on its maiden voyage (STS-49). |
| | 1992 - Three employees at a McDonald's Restaurant in Sydney, Nova Scotia, Canada, are brutally murdered and a fourth permanently disabled after a botched robbery. It is the first fast-food murder in Canada. |
| | 1998 - Mercedes-Benz buys Chrysler for US$40 billion and forms DaimlerChrysler in the largest industrial merger in history. |
| | 1999 - Pope John Paul II travels to Romania becoming the first pope that had visited a predominantly Eastern Orthodox country since the Great Schism in 1054. |
| | 1999 - A jury finds The Jenny Jones Show and Warner Bros. liable in the shooting death of Scott Amedure, after the show purposely deceived Jonathan Schmitz to appear on a secret same-sex crush episode. Schmitz later killed Amedure and the jury awarded Amedure's family US$25 million. |
| | 1999 - Kosovo War: In Federal Republic of Yugoslavia, three Chinese embassy workers are killed and 20 wounded when a NATO aircraft mistakenly bombs the Chinese embassy in Belgrade. |
| | 1999 - In Guinea-Bissau, President João Bernardo Vieira is ousted in a military coup. |
| | 2002 - A China Southern Airlines MD-82 plunges into the Yellow Sea, killing 112 people. |
| | 2005 - Former Lebanese Prime Minister, General Michel Aoun returns to Lebanon after 15 years in exile. |
| | 2006 - 558 - In Constantinople, the dome of the Hagia Sophia collapses. Justinian I immediately orders the dome rebuilt. |
| | 1274 - In France, the Second Council of Lyons opens to regulate the election of the Pope. |
| | 1429 - Joan of Arc ends the Siege of Orléans, pulling an arrow from her own shoulder and returning wounded to lead the final charge. The victory marks a turning point in the Hundred Years' War. |
| | 1697 - Stockholm's royal castle (dating back to medieval times) is destroyed in a huge fire (in the 18th century, it is replaced with the current Royal Palace). |
| | 1763 - Indian Wars: Pontiac's Rebellion begins - Chief Pontiac begins the "Conspiracy of Pontiac" by attacking British forces at Fort Detroit. |
| | 1824 - World premiere of Ludwig van Beethoven's Ninth Symphony in Vienna, Austria. Work was conducted by Michael Umlauf, under the deaf composer's supervision. |
| | 1832 - Greece is recognised independent by the Treaty of London. Otto of Wittelsbach, Prince of Bavaria is chosen King. |
| | 1836 - The settlement of Mayagüez, Puerto Rico is elevated to the royal status of villa by the government of Spain. |
| | 1840 - The Great Natchez Tornado strikes Natchez, Mississippi, killing 317 people. It is the second deadliest tornado in U.S. history. |
| | 1847 - In Philadelphia, the American Medical Association (AMA) is founded. |
| | 1864 - American Civil War: The Army of the Potomac, under General Ulysses S. Grant, breaks off from the Battle of the Wilderness and moves southwards. |
| | 1895 - In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention - the first in the world radio receiver. In the former Soviet Union this day is celebrated as Day of Radio. |
| | 1896 - H. H. Holmes is hanged in Philadelphia. |
| | 1915 - World War I: a German submarine U-20 sinks the RMS Lusitania, killing 1,198 people. |
| | 1920 - Kiev Offensive (1920): Polish troops led by Józef Piłsudski and Edward Rydz-Śmigły and assisted by a symbolic Ukrainian force captured Kiev only to be driven out by the Red Army counter-offensive a month later. |
| | 1920 - Treaty of Moscow (1920): Soviet Russia recognizes independence of the Democratic Republic of Georgia only to invade the country six months later. |
| | 1937 - Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrive in Spain to assist Franco's forces. |
| | 1945 - World War II: General Alfred Jodl signs unconditional surrender terms at Reims, France, ending Germany's participation in the war. The document will take effect the next day. |
| | 1946 - Tokyo Telecommunications Engineering (later renamed Sony) is founded with about 20 employees. |
| | 1947 - Kraft Television Theater debuts, running for the next 11 years. |
| | 1948 - The Council of Europe is founded during the Hague Congress. |
| | 1952 - The concept for the integrated circuit, the basis for all modern computers, is first published by Geoffrey W.A. Dummer. |
| | 1954 - Indochina War: The Battle of Dien Bien Phu ends in a French defeat (the battle began on March 13). |
| | 1960 - Cold War: U-2 Crisis - Soviet leader Nikita Khrushchev announces that his nation is holding American U-2 pilot Gary Powers. |
| | 1964 - Pacific Air Lines Flight 773, a Fairchild F-27 airliner, crashes near San Ramon, California, killing all 44 aboard; the FBI later reports that a cockpit recorder tape indicates that the pilot and co-pilot had been shot by a suicidal passenger. |
| | 1974 - West German Chancellor Willy Brandt resigns. |
| | 1992 - Michigan ratifies a 203-year-old proposed amendment to the United States Constitution making the 27th Amendment law. This amendment bars the U.S. Congress from giving itself a mid-term pay raise. |
| | 1992 - Space Shuttle Endeavour is launched on its maiden voyage (STS-49). |
| | 1992 - Three employees at a McDonald's Restaurant in Sydney, Nova Scotia, Canada, are brutally murdered and a fourth permanently disabled after a botched robbery. It is the first fast-food murder in Canada. |
| | 1998 - Mercedes-Benz buys Chrysler for US$40 billion and forms DaimlerChrysler in the largest industrial merger in history. |
| | 1999 - Pope John Paul II travels to Romania becoming the first pope that had visited a predominantly Eastern Orthodox country since the Great Schism in 1054. |
| | 1999 - A jury finds The Jenny Jones Show and Warner Bros. liable in the shooting death of Scott Amedure, after the show purposely deceived Jonathan Schmitz to appear on a secret same-sex crush episode. Schmitz later killed Amedure and the jury awarded Amedure's family US$25 million. |
| | 1999 - Kosovo War: In Federal Republic of Yugoslavia, three Chinese embassy workers are killed and 20 wounded when a NATO aircraft mistakenly bombs the Chinese embassy in Belgrade. |
| | 1999 - In Guinea-Bissau, President João Bernardo Vieira is ousted in a military coup. |
| | 2002 - A China Southern Airlines MD-82 plunges into the Yellow Sea, killing 112 people. |
| | 2005 - Former Lebanese Prime Minister, General Michel Aoun returns to Lebanon after 15 years in exile. |
| | 2006 - Rolling Stone Magazine publishes its 1000th issue. |
| | . |