A military plane crash in northern Laos kills 17 people.
Pamir Airways Flight 112 crashes in Afghanistan's Shakardara District, killing 44.
Trains from North and South Korea cross the 38th Parallel in a test-run agreed by both governments. This is the first time that trains have crossed the Demilitarized Zone since 1953.
The aircraft carrier USS Oriskany is sunk in the Gulf of Mexico as an artificial reef.
The first legal same-sex marriages in the U.S. are performed in the state of Massachusetts.
Arsenal and Galatasaray fans clash in the 2000 UEFA Cup Final riots in Copenhagen
Troops of Laurent-Désiré Kabila march into Kinshasa. Zaire is officially renamed Democratic Republic of the Congo.
Shawn Nelson steals an M60 tank from the California Army National Guard Armory in San Diego and proceeds to go on a rampage.
Malawi holds its first multi-party elections.
Three days of popular protests against the government of Prime Minister of Thailand Suchinda Kraprayoon begin in Bangkok, leading to a military crackdown that results in 52 officially confirmed deaths, hundreds of injuries, many disappearances, and m...
The General Assembly of the World Health Organization (WHO) eliminates homosexuality from the list of psychiatric diseases.
Iran–Iraq War: An Iraqi Dassault Mirage F1 fighter jet fires two missiles into the U.S. Navy warship USS Stark, killing 37 and injuring 21 of her crew.
Prince Charles calls a proposed addition to the National Gallery, London, a "monstrous carbuncle on the face of a much-loved and elegant friend", sparking controversies on the proper role of the Royal Family and the course of modern architecture.
The U.S. Department of Energy declassifies documents showing world's largest mercury pollution event in Oak Ridge, Tennessee (ultimately found to be 4.2 million pounds [1.9 kt]), in response to the Appalachian Observer's Freedom of Information Act re...
Lebanon, Israel, and the United States sign an agreement on Israeli withdrawal from Lebanon.
General Chun Doo-hwan of South Korea seizes control of the government and declares martial law in order to suppress student demonstrations.
On the eve of presidential elections, Maoist guerrilla group Shining Path attacks a polling location in Chuschi (a town in Ayacucho), starting the Internal conflict in Peru.
Nolan Bushnell opened the first Chuck E. Cheese's Pizza Time Theatre (later renamed Chuck E. Cheese) in San Jose, California.
The Troubles: Thirty-three civilians are killed and 300 injured when the Ulster Volunteer Force (UVF) detonates four car bombs in Dublin and Monaghan, Ireland.
Police in Los Angeles raid the Symbionese Liberation Army's headquarters, killing six members, including Camilla Hall.
Watergate scandal: Televised hearings begin in the United States Senate.
Venera program: Soviet Venera 6 begins its descent into the atmosphere of Venus, sending back atmospheric data before being crushed by pressure.
Six-Day War: President Gamal Abdel Nasser of Egypt demands dismantling of the peace-keeping UN Emergency Force in Egypt.
The United States Supreme Court hands down a unanimous decision in Brown v. Board of Education of Topeka, Kansas, outlawing racial segregation in public schools.
Delta Air Lines Flight 318 crashes near Marshall, Texas, killing 19.
World War II: Dambuster Raids commence by No. 617 Squadron RAF.
World War II: Germany occupies Brussels, Belgium.
The Columbia Lions and the Princeton Tigers play in the United States' first televised sporting event, a collegiate baseball game in New York City.
Spanish Civil War: The Largo Caballero government resigns in the wake of the Barcelona May Days, leading Juan Negrín to form a government, without the anarcho-syndicalist CNT, in its stead.
Vidkun Quisling and Johan Bernhard Hjort form Nasjonal Samling — the national-socialist party of Norway.
The last British Liberal Party government (led by H. H. Asquith) falls.
The Protocol of Corfu is signed, recognising full autonomy to Northern Epirus under nominal Albanian sovereignty.
Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
Aristides wins the first Kentucky Derby with the jockey Oliver Lewis (2:37.75).
The International Telegraph Union (later the International Telecommunication Union) is established in Paris.
Rosalía de Castro publishes Cantares Gallegos, the first book in the Galician language.