March 6 events in history

961 Byzantine conquest of Chandax by Nikephoros Phokas, end of the Emirate of Crete
1454 Thirteen Years' War: Delegates of the Prussian Confederation pledge allegiance to King Casimir IV of Poland who agrees to commit his forces in aiding the Confederation's struggle for independence from the Teutonic Knights
1521 Ferdinand Magellan arrives at Guam
1788 The First Fleet arrives at Norfolk Island in order to found a convict settlement
1820 The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, brings Maine into the Union as a free state, and makes the rest of the northern part of the Louisiana Purchase territory slavery-free
1834 York, Upper Canada is incorporated as Toronto
1836 Texas Revolution: Battle of the Alamo – After a thirteen day siege by an army of 3,000 Mexican troops, the 187 Texas volunteers, including frontiersman Davy Crockett and colonel Jim Bowie, defending the Alamo are killed and the fort is captured
1857 The Supreme Court of the United States rules in the Dred Scott v. Sandford case
1869 Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society
1882 The Serbian kingdom is re-founded
1899 Bayer registers "Aspirin" as a trademark
1902 Real Madrid C.F. was founded
1912 Italian forces became the first to use airships in war, as two dirigibles dropped bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet
1921 Portuguese Communist Party is founded as the Portuguese Section of the Communist International
1930 International Unemployment Day demonstrations globally initiated by the Comintern
1943 Norman Rockwell published Freedom from Want in the The Saturday Evening Post with a matching essay by Carlos Bulosan as part of the Four Freedoms series
1945 World War II: Cologne is captured by American Troops
1946 Ho Chi Minh signs an agreement with France which recognizes Vietnam as an autonomous state in the Indochinese Federation and the French Union
1951 The trial of Ethel and Julius Rosenberg begins
1953 Georgy Malenkov succeeds Joseph Stalin as Premier of the Soviet Union and First Secretary of the Communist Party of the Soviet Union
1957 Ghana becomes the first Sub-Saharan country to gain independence from the British
1962 Ash Wednesday Storm of 1962 begins on the mid-Atlantic coast of the United States
1964 Nation of Islam's Elijah Muhammad officially gives boxing champion Cassius Clay the name Muhammad Ali
1964 Constantine II becomes King of Greece
1965 Premier Tom Playford of South Australia loses power after 27 years in office
1967 Joseph Stalin's daughter Svetlana Alliluyeva defects to the United States
1968 The first of the East L.A. walkouts take place at several high schools
1968 Three black males are executed by Rhodesia, the first executions since UDI, prompting international condemnation
1970 An explosion at the Weather Underground safe house in Greenwich Village kills three
1975 For the first time the Zapruder film of the assassination of John F. Kennedy is shown in motion to a national TV audience by Robert J. Groden and Dick Gregory
1975 Algiers Accord: Iran and Iraq announce a settlement of their border dispute
1981 After 19 years of presenting the CBS Evening News, Walter Cronkite signs off for the last time
1983 The first United States Football League game is played
1987 The British ferry MS Herald of Free Enterprise capsizes in about 90 seconds killing 193
1988 Three Provisional Irish Republican Army volunteers are killed by Special Air Service on the territory of Gibraltar in the conclusion of Operation Flavius
1990 Ed Yielding and Joseph T. Vida set the transcontinental speed record flying a SR-71 Blackbird from Los Angeles to Virginia in 64 minutes, averaging 2,124 mph
1992 The Michelangelo computer virus begins to affect computers
2008 A suicide bomber kills 68 people (including first responders) in Baghdad on the same day that a gunman kills eight students in Jerusalem