1970 Vietnam War: The United States turns over control of the air base at Bình Thủy in the Mekong Delta to South Vietnam.

1967 Iberia Flight 062 crashes in Blackdown, West Sussex, killing all 37 people on board including British actress June Thorburn.

1966 The Arno River floods Florence, Italy, to a maximum depth of 6.7 m (22 ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Venice is also submerged on the same day at its record all-time acqua alta of 194 cm (76 in).

1962 The United States concludes Operation Fishbowl, its final above-ground nuclear weapons testing series, in anticipation of the 1963 Partial Nuclear Test Ban Treaty.

1960 At the Kasakela Chimpanzee Community in Tanzania, Jane Goodall observes chimpanzees creating tools, the first-ever observation in non-human animals.

1956 Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.

1952 The United States government establishes the National Security Agency, or NSA.

1946 UNESCO constitution comes into force: UNESCO’s constitution entered into force, creating a UN agency devoted to education, science and culture and promoting international collaboration.

1944 World War II: Operation Pheasant, an Allied offensive to liberate North Brabant in the Netherlands, ends successfully.

1944 World War II: The 7th Macedonian Liberation Brigade liberates Bitola for the Allies.

1942 World War II: Disobeying a direct order by Adolf Hitler, General Field Marshal Erwin Rommel begins a retreat of his forces after a costly defeat during the Second Battle of El Alamein. The retreat would ultimately last five months.

1939 World War II: U.S. president Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.

1936 Spanish Civil War: Largo Caballero reshuffles his war cabinet, persuading the anarcho-syndicalist CNT to join the government.

1924 Nellie Tayloe Ross of Wyoming becomes the first female elected as governor in the United States.

1922 In Egypt, British archaeologist Howard Carter and his men find the entrance to Tutankhamun's tomb in the Valley of the Kings.

1921 Japanese prime minister Hara Takashi is assassinated in Tokyo.

1921 The Saalschutz Abteilung (hall defense detachment) of the Nazi Party is renamed the Sturmabteilung (storm detachment) after a large riot in Munich.

1918 World War I: The Armistice of Villa Giusti between Italy and Austria-Hungary is implemented.

1890 City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.

1868 Camagüey, Cuba, revolts against Spain during the Ten Years' War.

1864 American Civil War: Confederate troops bombard a Union supply base and destroy millions of dollars in materiel at the Battle of Johnsonville.

1852 Camillo Benso, Count of Cavour, becomes the prime minister of Piedmont-Sardinia, which soon expands to become Italy.

1847 Sir James Young Simpson, a Scottish physician, discovers the anaesthetic properties of chloroform.

1839 Newport Rising: The last large-scale armed rebellion against authority in mainland Britain.

1798 The Russo-Ottoman siege of Corfu begins.

1791 Northwest Indian War: The Western Confederacy of American Indians wins a major victory over the United States in the Battle of the Wabash.

1783 Wolfgang Amadeus Mozart's Symphony No. 36 is performed for the first time in Linz, Austria.

1780 The Rebellion of Túpac Amaru II against Spanish rule in the Viceroyalty of Peru begins.

1737 The Teatro di San Carlo, the oldest working opera house in Europe, is inaugurated in Naples, Italy.

1677 The future Mary II of England marries William, Prince of Orange; they later jointly reign as William and Mary.

1576 Eighty Years' War: In Flanders, Spain captures Antwerp (which is nearly destroyed after three days).

1501 Catherine of Aragon (later Henry VIII's first wife) meets Arthur Tudor, Henry VIII's older brother – they would later marry.

1493 Christopher Columbus reaches the Leeward Islands.

1429 Armagnac–Burgundian Civil War: Joan of Arc liberates Saint-Pierre-le-Moûtier.

1354 War of the Straits: The Genoese fleet under Paganino Doria defeats and captures the entire Venetian fleet under Niccolò Pisani at the Battle of Sapienza.

512 Following Byzantine emperor Anastasius' deposition of Chalcedonian patriarchs and attempts to make Monophysite changes to liturgy, riots break out in Constantinople with a mob trying to proclaim Areobindus as emperor.

1982 The Salang Tunnel fire in Afghanistan kills 150–2000 people.

1980 A Latin Carga Convair CV-880 crashes at Simón Bolívar International Airport in Venezuela, killing four.

1979 Greensboro massacre: Five members of the Communist Workers Party are shot dead and seven are wounded by a group of Klansmen and neo-Nazis during a "Death to the Klan" rally in Greensboro, North Carolina, United States.

1978 Dominica gains its independence from the United Kingdom.

1973 Mariner program: NASA launches the Mariner 10 toward Mercury. On March 29, 1974, it becomes the first space probe to reach that planet.

1969 Vietnam War: U.S. President Richard M. Nixon addresses the nation on television and radio, asking the "silent majority" to join him in solidarity on the Vietnam War effort and to support his policies.

1967 Vietnam War: The Battle of Dak To begins.

1964 Lyndon B. Johnson is elected to a full term as U.S. president, winning 61% of the vote and 44 states, while Washington D.C. residents are able to vote in a presidential election for the first time, casting the majority of their votes for Lyndon Johnson.

1961 U Thant is unanimously appointed as the 3rd Secretary-General of the United Nations, becoming the first non-European individual to occupy the post.

1957 Sputnik program: The Soviet Union launches Sputnik 2. On board is the first animal to enter orbit, a dog named Laika.

1956 Hungarian Revolution: A new Hungarian government is formed, in which many members of banned non-Communist parties participate. János Kádár and Ferenc Münnich form a counter-government in Moscow as Soviet troops prepare for the final assault.

1956 Suez Crisis: The Khan Yunis killings by the Israel Defense Forces in Egyptian-controlled Gaza result in the deaths of 275 Palestinians.

1950 Air India Flight 245 crashes into Mont Blanc while on approach to Geneva Airport, killing all 48 people on board.

1946 The Constitution of Japan is adopted through Emperor's assent.