350 – The Roman usurper Nepotianus, of the Constantinian dynasty, proclaims himself Roman emperor, entering Rome at the head of a group of gladiators.
713 – The 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.
1621 – The Dutch West India Company receives a charter for New Netherland.
1658 – Pope Alexander VII appoints François de Laval vicar apostolic in New France.
1861 – Battle of Philippi (also called the Philippi Races): Union forces rout Confederate troops in Barbour County, Virginia, now West Virginia.
1935 – One thousand unemployed Canadian workers board freight cars in Vancouver, British Columbia, beginning a protest trek to Ottawa.
1948 – United Nations Security Council Resolution 51 is adopted.
1963 – The Buddhist crisis: Soldiers of the Army of the Republic of Vietnam attack protesting Buddhists in Huế, South Vietnam, with liquid chemicals from tear-gas grenades, causing 67 people to be hospitalised for blistering of the skin and respiratory ailments.
1965 – The launch of Gemini 4, the first multi-day space mission by a NASA crew. Ed White, a crew member, performs the first American spacewalk.
1973 – A Soviet supersonic Tupolev Tu-144 crashes near Goussainville, France, killing 14, the first crash of a supersonic passenger aircraft.
1982 – The Israeli ambassador to the United Kingdom, Shlomo Argov, is shot on a London street; he survives but is left paralysed.
1984 – Operation 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.
2006 – The union of Serbia and Montenegro comes to an end with Montenegro's formal declaration of independence.
2013 – The trial of United States Army private Chelsea Manning for leaking classified material to WikiLeaks begins in Fort Meade, Maryland.
2013 – At least 119 people are killed in a fire at a poultry farm in Jilin Province in northeastern China.
