2017: The impeachment of President Park Geun-hye of South Korea in response to a major political scandal is unanimously upheld by the country's Constitutional Court, ending her presidency.
2000: The Nasdaq Composite stock market index peaks at 5132.52, signaling the beginning of the end of the dot-com boom.
1990: In Haiti, Prosper Avril is ousted 18 months after seizing power in a coup.
1977: Astronomers discover the rings of Uranus.
1975: Vietnam War: Ho Chi Minh Campaign: North Vietnamese troops attack Ban Mê Thuột in the South on their way to capturing Saigon in the final push for victory over South Vietnam.
1970: Vietnam War: Captain Ernest Medina is charged by the U.S. military with My Lai war crimes.
1968: Vietnam War: Battle of Lima Site 85, concluding the 11th with largest single ground combat loss of United States Air Force members (12) during that war.
1966: Military Prime Minister of South VietnamNguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
1959: Tibetan uprising: Fearing an abduction attempt by China, thousands of Tibetans surround the Dalai Lama's palace to prevent his removal.
1952: Fulgencio Batista leads a successful coup in Cuba and appoints himself as the "provisional president".
1945: The U.S. Army Air Force firebombs Tokyo, and the resulting conflagration kills more than 100,000 people, mostly civilians.
1933: The 6.4 Mw Long Beach earthquake affects the Greater Los Angeles Area with a maximum Mercalli intensity of VIII (Severe), leaving 115-120 people dead, and causing an estimated $40 million in damage.
1922: Mahatma Gandhi is arrested in India, tried for sedition, and sentenced to six years in prison, only to be released after nearly two years for an appendicitis operation.
1917: Some provinces and cities in the Philippines are incorporated due to the ratification of Act No. 2711 or the Administrative Code of the Philippines.
1762: French HuguenotJean Calas, who had been wrongly convicted of killing his son, dies after being tortured by authorities; the event inspired Voltaire to begin a campaign for religious tolerance and legal reform.
1735: An agreement between Nader Shah and Russia is signed near Ganja, Azerbaijan and Russian troops are withdrawn from Baku.