1536 – King Henry VIII of England marries Jane Seymour, a lady-in-waiting to his first two wives.
1899 – Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
1911 – At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
1922 – The Lincoln Memorial is dedicated in Washington, D.C.
1958 – The remains of two unidentified American servicemen, killed in action during World War II and the Korean War respectively, are buried at the Tomb of the Unknown Soldier in Arlington National Cemetery.
1961 – The long-time Dominican dictator Rafael Trujillo is assassinated in Santo Domingo, Dominican Republic.
1963 – A protest against pro-Catholic discrimination during the Buddhist crisis is held outside South Vietnam's National Assembly, the first open demonstration during the eight-year rule of Ngo Dinh Diem.
1971 – Mariner 9 is launched to map 70 percent of the surface, and to study temporal changes in the atmosphere and surface, of Mars.
1975 – The European Space Agency is established.
1989 – Tiananmen Square protests of 1989: The 33-foot high "Goddess of Democracy" statue is unveiled in Tiananmen Square by student demonstrators.
1998 – Pakistan conducts an underground nuclear test in the Kharan Desert. It is reported to be a plutonium device with yield of 20kt TNT equivalent.
2013 – Nigeria passes a law banning same-sex marriage.
