2015: At least seven people are killed and many injured after gunmen attack an Indian police station in Punjab.
2005: After an incident during STS-114, NASA grounds the Space Shuttle, pending an investigation of the continuing problem with the shedding of foam insulation from the external fuel tank.
2002: Ukraine airshow disaster: A Sukhoi Su-27 fighter crashes during an air show at Lviv, Ukraine killing 77 and injuring more than 500 others, making it the deadliest air show disaster in history.
1990: The Supreme Soviet of the Belarusian Soviet Republic declares independence of Belarus from the Soviet Union. Until 1996 the day is celebrated as the Independence Day of Belarus; after a referendum held that year the celebration of independence is moved to June 3.
1989: While attempting to land at Tripoli International Airport in Libya, Korean Air Flight 803 crashes just short of the runway. Seventy-five of the 199 passengers and crew and four people on the ground are killed, in the second accident involving a DC-10 in less than two weeks, the first being United Airlines Flight 232.
1987: RMS Titanic Inc. begins the first expedited salvage of wreckage of the RMS Titanic.
1983: Black July: Eighteen Tamil political prisoners at the Welikada high security prison in Colombo are massacred by Sinhalese prisoners, the second such massacre in two days.
1976: Former Japanese prime minister Kakuei Tanaka is arrested on suspicion of violating foreign exchange and foreign trade laws in connection with the Lockheed bribery scandals.
1974: Watergate scandal: The House of Representatives Judiciary Committee votes 27 to 11 to recommend the first article of impeachment (for obstruction of justice) against President Richard Nixon.
1959: The Continental League is announced as baseball's "3rd major league" in the United States.
1955: El Al Flight 402 is shot down by two fighter jets after straying into Bulgarian air space. All 58 people onboard are killed.
1955: The Allied occupation of Austria stemming from World War II ends.
1953: Cessation of hostilities is achieved in the Korean War when the United States, China, and North Korea sign an armistice agreement. Syngman Rhee, President of South Korea, refuses to sign but pledges to observe the armistice.
1949: Initial flight of the de Havilland Comet, the first jet-powered airliner.
1942: World War II: Allied forces successfully halt the final Axis advance into Egypt.
1941: Japanese troops stationed in Tonkin occupy the southern portion of French Indochina.
1940: The animated short A Wild Hare is released, introducing the character of Bugs Bunny.
1929: The Geneva Convention of 1929, dealing with treatment of prisoners-of-war, is signed by 53 nations.
1919: The Chicago Race Riot erupts after a racial incident occurred on a South Side beach, leading to 38 fatalities and 537 injuries over a five-day period.
1866: The first permanent transatlantic telegraph cable is successfully completed, stretching from Valentia Island, Ireland, to Heart's Content, Newfoundland.
1865: Welsh settlers arrive at Chubut in Argentina.
1857: Siege of Arrah begins: Sixty-eight men hold out for eight days against a force of 2,500 to 3,000 mutinying sepoys and 8,000 irregular forces.
1816: Battle of Negro Fort: The battle ends when a hot shot cannonball fired by US Navy Gunboat No. 154 explodes the Fort's Powder Magazine, killing apx. 275. It is considered the deadliest single cannon shot in US history.
1789: The first U.S. federal government agency, the Department of Foreign Affairs, is established (it will be later renamed Department of State).
1778: American Revolution: First Battle of Ushant: British and French fleets fight to a standoff.
1775: Founding of the U.S. Army Medical Department: The Second Continental Congress passes legislation establishing "an hospital for an army consisting of 20,000 men."
1663: The English Parliament passes the second Navigation Act requiring that all goods bound for the American colonies have to be sent in English ships from English ports.
1549: The Jesuit priest Francis Xavier's ship reaches Japan.
1302: Battle of Bapheus: Decisive Ottoman victory over the Byzantines opening up Bithynia for Turkish conquest.