– Vietnam War: Thousands of civilian refugees flee from Quảng Ngãi Province in front of advancing North Vietnamese troops. 1976 – Prince Norodom Sihanouk resigns as leader of Cambodia and is placed under house arrest. 1979 – A Soviet bio-warfare laboratory at Sverdlovsk accidentally releases airborne anthrax spores, killing 66 plus an unknown amount of livestock. 1980 – United States President Jimmy Carter signs the Crude Oil Windfall Profits Tax Act. 1982 – Falklands War: Argentina invades the Falkland Islands. 1986 – Alabama governor George Wallace, a former segregationist, best known for the "Stand in the Schoolhouse Door", announces that he will not seek a fifth four-year term and will retire from public life upon the end of his term in January 1987. 1989 – Soviet leader Mikhail Gorbachev arrives in Havana, Cuba, to meet with Fidel Castro in an attempt to mend strained relations. 1991 – Rita Johnston becomes the first female Premier of a Canadian province when she succeeds William Vander Zalm (who had resigned) as Premier of British Columbia. 1992 – In New York, Mafia boss John Gotti is convicted of murder and racketeering and is later sentenced to life in prison. 1992 – Forty-two civilians are massacred in the town of Bijeljina in Bosnia and Herzegovina. 2002 – Israeli forces surround the Church of the Nativity in Bethlehem, into which armed Palestinians had retreated. 2004 – Islamist terrorists involved in the 11 March 2004 Madrid attacks attempt to bomb the Spanish high-speed train AVE near Madrid; the attack is thwarted. 2006 – Over 60 tornadoes break out in the United States; Tennessee is hardest hit with 29 people killed. 2012 – A mass shooting at Oikos University in California leaves seven people dead and three injured. 2014 – A spree shooting occurs at the Fort Hood army base in Texas, with four dead, including the gunman, and 16 others injured. 2015 – Gunmen attack Garissa University College in Kenya, killing at least 148 people and wounding 79 others. 2015 – Four men steal items worth up to £200 million from an underground safe deposit facility in London's Hatton Garden area in what has been called the "largest burglary in English legal history." 2020 – COVID-19 pandemic: The total number of confirmed cases reach one million. 2021 – At least 49 people are killed in a train derailment in Taiwan after a truck accidentally rolls onto the