January 20 events in history

250 Emperor Decius begins a widespread persecution of Christians in Rome. Pope Fabian is martyred
649 King Chindasuinth, at the urging of bishop Braulio of Zaragoza, crowns his son Recceswinth as co-ruler of the Visigothic Kingdom
1265 In Westminster, the first English parliament conducts its first meeting held by Simon de Montfort in the Palace of Westminster, now also known colloquially as the "Houses of Parliament"
1320 Duke Wladyslaw Lokietek becomes king of Poland
1356 Edward Balliol abdicates as King of Scotland
1523 Christian II is forced to abdicate as King of Denmark and Norway
1567 Battle of Rio de Janeiro: Portuguese forces under the command of Estácio de Sá definitively drive the French out of Rio de Janeiro
1576 The Mexican city of León is founded by order of the viceroy Don Martín Enríquez de Almanza
1649 Charles I of England goes on trial for treason and other "high crimes"
1783 The Kingdom of Great Britain signs a peace treaty with France and Spain, officially ending hostilities in the American Revolutionary War (also known as the American War of Independence)
1785 Invading Siamese forces attempt to exploit the political chaos in Vietnam, but are ambushed and annihilated at the Mekong River by the Tay Son in the Battle of Rạch Gầm-Xoài Mút
1788 The third and main part of First Fleet arrives at Botany Bay. Arthur Phillip decides that Botany Bay is unsuitable for the location of a penal colony, and decides to move to Port Jackson
1839 In the Battle of Yungay, Chile defeats an alliance between Peru and Bolivia
1841 Hong Kong Island is occupied by the British
1877 Last day of the Constantinople Conference which resulted in agreement for political reforms in the Balkans
1887 The United States Senate allows the Navy to lease Pearl Harbor as a naval base
1920 The American Civil Liberties Union is founded
1921 The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty
1929 In Old Arizona, the first full-length talking motion picture filmed outdoors, is released
1936 Edward VIII becomes King of the United Kingdom
1941 A German officer is murdered in Bucharest, Romania, sparking a rebellion and pogrom by the Iron Guard, killing 125 Jews and 30 soldiers
1942 World War II: At the Wannsee Conference held in the Berlin suburb of Wannsee, senior Nazi German officials discuss the implementation of the "Final Solution to the Jewish Question"
1945 World War II: Hungary agrees to an armistice with the Allies
1945 World War II: Germany begins the evacuation of 1.8 million people from East Prussia, a task which will take nearly two months
1949 Point Four Program a program for economic aid to poor countries announced by United States President Harry S. Truman in his inaugural address for a full term as President
1954 The National Negro Network is established with 40 charter member radio stations
1959 The first flight of the Vickers Vanguard
1960 Hendrik Verwoerd announces a plebiscite on whether South Africa should become a Republic
1969 East Pakistani police kill student activist Amanullah Asaduzzaman. The resulting outrage is in part responsible for the Bangladesh Liberation War
1972 Pakistan launched its Nuclear weapons program few weeks after its defeat in Bangladesh Liberation War and Indo-Pakistani War of 1971
1981 Twenty minutes after Ronald Reagan is inaugurated, at age 69 the oldest man ever to be inaugurated as U.S. President, Iran releases 52 American hostages
1986 Martin Luther King, Jr. Day is celebrated as a federal holiday for the first time
1987 Church of England envoy Terry Waite is kidnapped in Lebanon
1990 On Black Saturday, the Red Army kills Azerbaijani civilians in Baku
1991 Sudan's government imposes Islamic law nationwide, worsening the civil war between the country's Muslim north and Christian south
1992 Air Inter Flight 148, an Airbus A320-111, crashes into a mountain near Strasbourg, France killing 87 of the 96 people on board. A design flaw in the computer mode selection system resulted in the crew selecting the wrong rate of descent
1999 The China News Service announces new government restrictions on Internet use, aimed especially at Internet cafés
2001 Philippine president Joseph Estrada is ousted in a nonviolent 4-day revolution, and is succeeded by Gloria Macapagal-Arroyo
2006 Witnesses report seeing a bottlenose whale swimming in the River Thames, the first time the species had been seen in the Thames since records began in 1913
2007 A three-man team, using only skis and kites, completes a 1,093-mile (1,759 km) trek to reach the southern pole of inaccessibility for the first time since 1958 and for the first time ever without mechanical assistance
2009 A protest movement in Iceland culminates as the 2009 Icelandic financial crisis protests start