Guam: Lady of Camarin Day Peru: Immaculate Conception
1609 - The Biblioteca Ambrosiana opens its reading room, the second public library in Europe.
1659 - The Mexican border town Ciudad Juárez is founded by Fray García de San Francisco.
1854 - Pope Pius IX proclaims the dogma of Immaculate Conception, which holds that the Virgin Mary was born free of original sin.
1864 - The Clifton Suspension Bridge over the River Avon is officially opened.
1869 - Timothy Eaton founds T. Eaton Co. Limited in Toronto, Canada.
1886 - The American Federation of Labor is founded in Columbus, Ohio.
1889 - The KNVB is founded in the The Netherlands
1904 - Konservativ Ungdom (Young Conservatives) in Denmark is founded by Carl F. Herman von Rosen. Still existing today, it is the oldest political youth organization in Denmark and believed to be one of the oldest in the world.
1907 - King Gustaf V of Sweden accedes to the Swedish throne.
1912 - First Balkan War: The Greek army captures Korçë that had been under Ottoman rule.
1914 - World War I: Battle of the Falkland Islands – The Kaiserliche Marine under the command of Admiral Graf Maximilian von Spee is engaged by the Royal Navy.
1935 - The Japanese military police launches a violent suppression of the religious sect Oomoto, beginning with a crackdown on the sect's operational bases of Ayabe and Kameoka in Kyoto Prefecture and the arrest of its leader Onisaburo Deguchi.
1941 - World War II: The Japanese invade the British Crown Colony of Hong Kong, British Malaya and the Dutch East Indies. They also invade the portions of Shanghai administered by European powers and bomb American bases in the Philippines.
1941 - World War II: Pacific War – After the Japanese attack on Pearl Harbor the U.S. Congress passes a declaration of war against Japan.
1941 - World War II: Pacific War – the Republic of China officially declares war against Japan.
1941 - World War II: First Japanese attack on Wake Island.
1941 - Holocaust: Gas vans are first used as a means of execution, at the Chelmno extermination camp near Łódź in Poland.
1949 - Chinese Civil War: The capital of the Republic of China is moved from Nanjing to Taipei, Taiwan.
1953 - Dwight D. Eisenhower gives the Atoms for Peace speech.
1966 - The Greek ship SS Heraklion sinks in a storm in the Aegean Sea, killing over 200.
1974 - A plebiscite results in the abolition of monarchy in Greece.
1980 - John Lennon is shot and killed by Mark David Chapman in front of The Dakota apartment building in New York City.
1982 - Activist Norman Mayer threatens to blow up the Washington Monument, before being killed by United States Park Police.
1982 - In Suriname several opponents of the military government are killed.
1987 - The Intermediate-Range Nuclear Forces Treaty is signed.
1987 - The Queen Street Massacre: Frank Vitkovic shoots and kills 8 people at the offices of Australia Post in Melbourne, Australia before being killed himself.
1987 - The Alianza Lima air disaster.
1991 - The leaders of Russia, Belarus and Ukraine sign an agreement dissolving the Soviet Union and establishing the Commonwealth of Independent States.
1991 - The Romanian Constitution is adopted in a referendum.
1993 - The North American Free Trade Agreement (NAFTA) is signed into law by US President Bill Clinton.
1998 - Tadjena massacre: 81 people are killed by armed groups in Algeria.
2002 - The Caribbean Community Heads of Government meet with the Government of Cuba and declare the date to be "CARICOM-Cuba Day" – to celebrate diplomatic ties between the Caribbean Community (CARICOM) and Cuba.
2004 - The Cuzco Declaration is signed in Cuzco, Peru, establishing the South American Community of Nations.
2005 - Ante Gotovina, Croatian army general accused of war crimes, is captured in the Playa de las Américas, Tenerife by the Spanish police.
2008 - Kirsty Williams elected as Leader of the Welsh Liberal Democrats. The first female leader of a political party in Wales.