• 1800 - War of the Second Coalition: Battle of Hohenlinden, French General Moreau defeats the Austrian Archduke John near Munich decisively, coupled with First Consul Napoleon Bonaparte's victory at Marengo effectively forcing the Austrians to sign an armistice and ending the war.
• 1805 - Lewis and Clark Expedition mark their explorations from the Missouri River overland to the Columbia River on a pine tree.
• 1818 - Illinois becomes the 21st U.S. state.
• 1854 - Eureka Stockade: In what is claimed by many to be the birth of Australian democracy, more than 20 goldminers at Ballarat, Victoria, Australia are killed by state troopers in an uprising over mining licences.
• 1901 - US President Theodore Roosevelt delivers a 20,000-word speech to the House of Representatives asking the Congress to curb the power of trusts "within reasonable limits".
• 1904 - The Jovian moon Himalia is discovered by Charles Dillon Perrine at California's Lick Observatory.
• 1912 - Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with Turkey, ending the two-month long First Balkan War.
• 1912 - First Balkan War: The Naval Battle of Elli takes place.
• 1917 - After nearly 20 years of planning and construction, the Quebec Bridge opens to traffic.
• 1929 - Great Depression: US President Herbert Hoover announces to the U.S. Congress that the worst effects of the recent stock market crash are behind the nation and the American people have regained faith in the economy.
• 1944 - The Greek Civil War breaks out in a newly-liberated Greece, between communists and royalists.
• 1964 - Berkeley Free Speech Movement: Police arrest over 800 students at the University of California, Berkeley, following their takeover and sit-in at the administration building in protest at the UC Regents' decision to forbid protests on UC property.
• 1967 - At Groote Schuur Hospital in Cape Town, South Africa, a transplant team headed by Christiaan Barnard carries out the first heart transplant on a human (53-year-old Louis Washkansky).
• 1967 - The luxury train 20th Century Limited completes its last run from New York City to Chicago (the train was inaugurated on June 15, 1902).
• 1970 - October Crisis: In Montreal, Quebec, kidnapped British Trade Commissioner James Cross is released by the Front de Libération du Québec terrorist group after being held hostage for 60 days. Police negotiate his release and in return the Canadian government grants five terrorists from the FLQ's Chenier Cell their request for safe passage to Cuba.
• 1971 - Indo-Pakistani War of 1971: India invades East Pakistan and a full scale war begins claiming hundreds of lives.
• 1973 - Pioneer program: Pioneer 10 sends back the first close-up images of Jupiter.
• 1976 -An assassination attempt is made on Bob Marley-He is shot twice-plays a concert two days later
• 1979 - In Cincinnati, Ohio, eleven fans are killed during a stampede for seats before a Who concert at Riverfront Coliseum.
• 1979 - Shadow Traffic begins broadcasting in the New York City metropolitan area.
• 1982 - A soil sample is taken from Times Beach, Missouri that will be found to contain 300 times the safe level of dioxin.
• 1984 - Bhopal Disaster: A methyl isocyanate leak from a Union Carbide pesticide plant in Bhopal, India, kills more than 3,800 people outright and injures 150,000-600,000 others (some 6,000 of whom would later die from their injuries) in one of the worst industrial disasters in history.
• 1989 - Cold War: In a meeting off the coast of Malta, US President George H. W. Bush and Soviet leader Mikhail Gorbachev release statements indicating that the cold war between their nations may be coming to an end (some commentators from both nations exaggerated the wording and independently declared the Cold War over).
• 1990 - At Detroit Metropolitan Airport, Northwest Airlines Flight 1482 collides with Northwest Airlines Flight 299 on the runway, killing 8 passengers and 4 crew members aboard flight 1482.
• 1992 - UN Security Council Resolution 794 is unanimously passed, approving a coalition of United Nations peacekeepers led by the United States to form UNITAF, with the task of establishing peace and ensuring that humanitarian aid is distributed in Somalia.
• 1992 - The Greek oil tanker Aegean Sea, carrying 80,000 tonnes of crude oil, runs aground in a storm while approaching La Coruña, Spain, and spills much of its cargo.
• 1997 - In Ottawa, Canada, representatives from 121 countries sign a treaty prohibiting manufacture and deployment of anti-personnel landmines. The United States, People's Republic of China, and Russia don't sign the treaty, however.
• 1999 - NASA loses radio contact with the Mars Polar Lander moments before the spacecraft enters the Martian atmosphere.
• 2005 - XCOR Aerospace makes first manned rocket aircraft delivery of US Mail in Mojave, California.
• 2007 - Devastating winter storms caused the Chehalis River to flood many cities in Lewis County, also closing a 20-mile portion of Interstate 5 for several days. At least eight deaths and billions of dollars of damaged are blamed on the floods.

Births