350The Roman usurper Nepotianus, of the Constantinian dynasty, proclaims himself Roman emperor, entering Rome at the head of a group of gladiators.
713The Byzantine emperor Philippicus is blinded, deposed and sent into exile by conspirators of the Opsikion army in Thrace. He is succeeded by Anastasios II, who begins the reorganization of the Byzantine army.
1098After a five-month siege during the First Crusade, the Crusaders seize Antioch.
1140The French scholar Peter Abelard is found guilty of heresy.
1326The Treaty of Novgorod delineates borders between Russia and Norway in Finnmark.
1602An English naval force defeats a fleet of Spanish galleys, and captures a large Portuguese carrack at the Battle of Sesimbra Bay.
1608Samuel de Champlain lands at Tadoussac, Quebec, in the course of his third voyage to New France, and begins erecting fortifications.
1621The Dutch West India Company receives a charter for New Netherland.
1658Pope Alexander VII appoints François de Laval vicar apostolic in New France.
1665James Stuart, Duke of York (later to become King James II of England), defeats the Dutch fleet off the coast of Lowestoft.
1700Foundation of the Academy of the Distrustful in the library room of the Palau Dalmases in Barcelona.
1781Jack Jouett begins his midnight ride to warn Thomas Jefferson and the Virginia legislature of an impending British raid.
1839In Humen, China, Lin Zexu destroys 1.2 million kilograms of opium confiscated from British merchants, providing Britain with a casus belli to open hostilities, resulting in the First Opium War.
1863American Civil War: Robert E. Lee and his Army of Northern Virginia begin marching to invade the North for a second time, starting the Gettysburg campaign.
1864American Civil War: Union forces under Ulysses S. Grant sustain heavy casualties attacking Confederate troops under Robert E. Lee at the Battle of Cold Harbor in Hanover County, Virginia.
1885In the last military engagement fought on Canadian soil, the Cree leader, Big Bear, escapes the North-West Mounted Police.
1889The first long-distance electric power transmission line in the United States is completed, running between a generator at Willamette Falls and downtown Portland, Oregon.
1892Liverpool F.C. is founded by John Houlding.
1916The National Defense Act is signed into law, increasing the size of the United States National Guard by 450,000 men.
1935One thousand unemployed Canadian workers board freight cars in Vancouver, beginning a protest trek to Ottawa.
1937The Duke of Windsor (the former King Edward VIII of the United Kingdom) marries Wallis Simpson.
1940Franz Rademacher proposes plans to make Madagascar the "Jewish homeland", an idea that had first been considered by 19th century journalist Theodor Herzl.
1941World War II: The Wehrmacht razes the Greek village of Kandanos to the ground and murders 180 of its inhabitants.
1942World War II: Japan begins the Aleutian Islands Campaign by bombing Unalaska Island.
1943In Los Angeles, California, white U.S. Navy sailors and Marines attack Latino youths in the five-day Zoot Suit Riots.
1950Herzog and Lachenal of the French Annapurna expedition become the first climbers to reach the summit of an 8,000-metre peak.
1962At Paris Orly Airport, Air France Flight 007 overruns the runway and explodes when the crew attempts to abort takeoff, killing 130.
1963Soldiers of the South Vietnamese Army attack protesting Buddhists in Huế with liquid chemicals from tear-gas grenades, causing 67 people to be hospitalized for blistering of the skin and respiratory ailments.
1965The launch of Gemini 4, the first multi-day space mission by a NASA crew. Ed White, a crew member, performs the first American spacewalk.
1969Melbourne-Evans collision: Off the coast of South Vietnam, the Australian aircraft carrier cuts the U.S. Navy destroyer in half, resulting in 74 deaths.
1973A Soviet supersonic Tupolev Tu-144 crashes near Goussainville, France, killing 14, the first crash of a supersonic passenger aircraft.
1979A blowout at the Ixtoc I oil well in the southern Gulf of Mexico causes at least of oil to be spilled into the waters, the second-worst accidental oil spill ever recorded.
1980The 1980 Grand Island tornado outbreak hits Nebraska, United States, causing five deaths and $300 million (equivalent to $ million in ) worth of damage.
1982The Israeli ambassador to the United Kingdom, Shlomo Argov, is shot on a London street; he survives but is left paralysed.
1984Operation Blue Star, a military offensive, is launched by the Indian government at Harmandir Sahib, also known as the Golden Temple, the holiest shrine for Sikhs, in Amritsar. The operation continues until June 6, with casualties, most of them civilians, in excess of 5,000.
1989The government of China sends troops to force protesters out of Tiananmen Square after seven weeks of occupation.
1991Mount Unzen erupts in Kyūshū, Japan, killing 43 people, all of them either researchers or journalists.
1992Australian Aboriginal land rights are recognised in Mabo v Queensland (No 2), a case brought by Torres Strait Islander Eddie Mabo which led to the Native Title Act 1993 overturning the long-held colonial assumption of terra nullius.
1998After suffering a mechanical failure, a high speed train derails at Eschede, Germany, killing 101 people.
2012A plane carrying 153 people crashes in a residential neighborhood in Lagos, Nigeria, killing everyone on board plus six people on the ground.
2012The pageant for the Diamond Jubilee of Elizabeth II takes place on the River Thames.
2013The trial of United States Army private Chelsea Manning for leaking classified material to WikiLeaks begins in Fort Meade, Maryland.
2013At least 119 people are killed in a fire at a poultry farm in Jilin Province in northeastern China.
2019Khartoum massacre: In Sudan, over 100 people are killed when security forces accompanied by Janjaweed militiamen storm and open fire on a sit-in protest.
2025Reconstitution of the Academy of the Distrustful in the Sala Dalmases of the Historical Archive of the City of Barcelona in Barcelona.
Nacimientos (155)
1139Conon of Naso, Basilian abbot (died 1236)
1421Giovanni di Cosimo de' Medici, Italian noble (died 1463)
1454Bogislaw X, Duke of Pomerania (1474–1523) (died 1523)
1537João Manuel, Prince of Portugal (died 1554)
1540Charles II, Archduke of Austria (died 1590)
1554Pietro de' Medici, Italian noble (died 1604)
1576Giovanni Diodati, Swiss-Italian minister, theologian, and academic (died 1649)
1635Philippe Quinault, French playwright and composer (died 1688)
1636John Hale, American minister (died 1700)
1659David Gregory, Scottish-English mathematician and astronomer (died 1708)
1723Giovanni Antonio Scopoli, Italian physician, geologist, and botanist (died 1788)
1726James Hutton, Scottish geologist and physician (died 1797)
1736Ignaz Fränzl, German violinist and composer (died 1811)
1770Manuel Belgrano, Argentinian economist, lawyer, and politician (died 1820)
1771Sydney Smith, English preacher and author (died 1845)