1302 - Pope Boniface VIII issues the Papal bull Unam sanctam (One Faith).
1421 - A seawall at the Zuiderzee dike breaks, flooding 72 villages and killing about 10,000 people in the Netherlands.
1477 - William Caxton produces Dictes or Sayengis of the Philosophres, the first book printed on a printing press in England.
1493 - Christopher Columbus first sights what is now Puerto Rico.
1626 - St. Peter's Basilica is consecrated.
1686 - Charles Francois Felix operates on King Louis XIV of France's anal fistula after practicing the surgery on several peasants.
1803 - The Battle of Vertières, the last major battle of the Haitian Revolution, is fought, leading to the establishment of the Republic of Haiti, the first black republic in the Western Hemisphere.
1820 - Capt. Nathaniel Palmer becomes the first American to sight the continent of Antarctica.
1852 - Rose Philippine Duchesne dies in St. Charles, Missouri. She is canonized on July 3, 1988 by Pope John Paul II.
1863 - King Christian IX of Denmark decides to sign the November constitution, which declares Schleswig to be part of Denmark. This is seen by the German Confederation as a violation of the London Protocol and leads to the German–Danish war of 1864.
1865 - Mark Twain's story The Celebrated Jumping Frog of Calaveras County is published in the New York Saturday Press.
1883 - American and Canadian railroads institute five standard continental time zones, ending the confusion of thousands of local times.
1903 - The Hay-Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
1904 - General Esteban Huertas steps down after the government of Panama fears he wants to stage a coup.
1905 - Prince Carl of Denmark becomes King Haakon VII of Norway.
1909 - Two United States warships are sent to Nicaragua after 500 revolutionaries (including two Americans) are executed by order of José Santos Zelaya.
1916 - World War I: First Battle of the Somme ends – In France, British Expeditionary Force commander Douglas Haig calls off the battle which started on July 1, 1916.
1918 - Latvia declares its independence from Russia.
1926 - George Bernard Shaw refuses to accept the money for his Nobel Prize, saying, "I can forgive Alfred Nobel for inventing dynamite, but only a fiend in human form could have invented the Nobel Prize."
1928 - Release of the animated short Steamboat Willie, the first fully synchronized sound cartoon, directed by Walt Disney and Ub Iwerks, featuring the third appearances of cartoon stars Mickey Mouse and Minnie Mouse. This is also considered by the Disney corporation to be Mickey's birthday.
1929 - 1929 Grand Banks earthquake: Off the south coast of Newfoundland in the Atlantic Ocean, a Richter magnitude 7.2 submarine earthquake, centered on Grand Banks, breaks 12 submarine transatlantic telegraph cables and triggers a tsunami that destroys many south coast communities in the Burin Peninsula.
1930 - Sōka Kyōiku Gakkai, a Buddhist association later renamed Soka Gakkai, is founded by Japanese educators Tsunesaburo Makiguchi and Josei Toda.
1938 - Trade union members elect John L. Lewis as the first president of the Congress of Industrial Organizations.
1940 - World War II: German leader Adolf Hitler and Italian Foreign Minister Galeazzo Ciano meet to discuss Benito Mussolini's disastrous invasion of Greece.
1940 - New York City's Mad Bomber places his first bomb at a Manhattan office building used by Consolidated Edison.
1943 - World War II: Battle of Berlin: 440 Royal Air Force planes bomb Berlin causing only light damage and killing 131. The RAF loses nine aircraft and 53 air crew.
1947 - The Ballantyne's Department Store fire, Christchurch, New Zealand, kills 41 (New Zealand's worst ever fire)
1963 - The first push-button telephone goes into service.
1970 - U.S. President Richard Nixon asks the U.S. Congress for $155 million USD in supplemental aid for the Cambodian government.
1978 - Jonestown incident: In Guyana, Jim Jones leads his Peoples Temple cult in a mass murder-suicide that claims 918 lives in all, 909 of them at Jonestown itself, including over 270 children. Congressman Leo J. Ryan is assassinated by members of Peoples Temple shortly beforehand.
1982 - Duk Koo Kim dies unexpectedly from injuries sustained during a 14-round match against Ray Mancini in Las Vegas, Nevada, prompting reforms in the sport of boxing.
1985 - The Calvin and Hobbes comic strip is first published.
1987 - King's Cross fire: In London, 31 people die in a fire at the city's busiest underground station at King's Cross St Pancras.
1987 - Iran-Contra Affair: The U.S. Congress issues its final report on the Iran-Contra Affair.
1988 - War on Drugs: U.S. President Ronald Reagan signs a bill into law allowing the death penalty for murder in regards to drug traffickers.
1991 - Shiite Muslim kidnappers in Lebanon set Anglican Church envoys Terry Waite and Thomas Sutherland free.
1991 - After the siege of Vukovar, the Croatian city of Vukovar capitulates to the besieging Yugoslav People's Army and allied Serb paramilitary forces.
1993 - In South Africa, 21 political parties approve a new constitution.
1999 - In College Station, Texas, 12 are killed and 27 injured at Texas A&M University when a massive bonfire under construction collapses.
2002 - Iraq disarmament crisis: United Nations weapons inspectors led by Hans Blix arrive in Iraq.
2003 - In the United Kingdom, the Local Government Act 2003, repealing controversial anti-gay amendment Section 28, becomes effective.
2003 - The congress of the Communist Party of Indian Union (Marxist-Leninist) decides to merge the party into Kanu Sanyal's CPI(ML).
2003 - In a 50-page, 4–3 ruling, the Massachusetts Supreme Judicial Court found that the state may not "deny the protections, benefits and obligations conferred by civil marriage to two individuals of the same sex who wish to marry."
2004 - Russia officially ratifies the Kyoto Protocol.