A comprehensive list of anything signficant that happened on April 12....I'm sure we can all find SOMETHING more relevant to commemorate on THIS list!!! LOL
12/04/1065 - Pilgrims under bishop Gunther of Bamberg reach Jerusalem
12/04/1111 - Pope Paschalis II crowns Henry V, Roman emperor
12/04/1204 - 4th Crusade occupies and plunders Constantinople
12/04/1229 - Queen Blanche of Castili‰ and earl Raymond VII van Toulouse sign peace
12/04/1385 - John without Fear marries Margaretha of Brabant
12/04/1385 - Willem van Oostervant weds Philip the Stouts daughter Margaretha (10)
12/04/1545 - French king Fran‡ois I orders protestants of Vaudois to be killed
12/04/1583 - William of Orange marries Louise de Coligny
12/04/1606 - England adopts Union Jack as its flag
12/04/1648 - University of Harderwijk Neth solemn opens
12/04/1654 - England, Ireland and Scotland united
12/04/1709 - 1st edition of Tattler magazine in England
12/04/1713 - Dutch State-Gen signs peace with France: Neth loses Orange Princedom
12/04/1770 - Townsend Acts repealed
12/04/1776 - Halifax resolution for independence adopted by North Carolina
12/04/1782 - Battle at Les Saintes West-Indies: British fleet beats French
12/04/1787 - Philadelphia's Free African Society forms
12/04/1811 - 1st US colonists on Pacific coast arrive at Cape Disappointment, WA
12/04/1826 - Weber's opera "Oberon," premieres in London
12/04/1844 - Texas became a US territory
12/04/1857 - Gustave Flaubert's "Madame Bovary" published
12/04/1858 - 1st US billiards championship (Michael J Phelan wins in Detroit)
12/04/1859 - Hibernia Savings and Loan Society of SF incorporates
12/04/1861 - Fort Sumter, SC is shelled by Confederacy, starting Civil War
12/04/1862 - James Andrews steals Confederate train (General) at Kennesaw, GA
12/04/1862 - Union troops occupy Fort Pulaski Georgia
12/04/1863 - -14] Gunboat battle at Bayou Teche Louisiana
12/04/1864 - Battle of Blair's Landing LA
12/04/1864 - Confederate Gen Nathan Bedford Forrest captures Fort Pillow, Tn
12/04/1869 - North Carolina legislature passes anti-Klan Law
12/04/1872 - Jesse James gang robs bank in Columbia, Kentucky (1 dead/$1,500)
12/04/1877 - British annex Transvaal, in South Africa
12/04/1877 - Catcher's mask 1st used in a baseball game
12/04/1883 - French troops under lt-colonel Borgnis-Desbordes occupy Bamako Senegal
12/04/1887 - Henrik Ibsen's "Rosmersholm," premieres in Oslo
12/04/1892 - George C Blickensderfer patents portable typewriter
12/04/1893 - Battle at Hoornkrans Southwest-Africa: German Schutztruppen chases away Hottentotten under Hendrik Witbooi
12/04/1894 - British and Belgian secret accord on dividing Central-Africa
12/04/1896 - Stamasia Portrisi is 1st woman to win a marathon (5:30 in Athens)
12/04/1898 - Army transfers Yerba Buena Island in SF Bay to Navy
12/04/1905 - French Dufaux brothers test helicopter
12/04/1905 - Hippodrome arena opens (NYC)
12/04/1907 - Belgium govt of De Stain de Naeyer, resigns
12/04/1908 - Fire makes 17,000 homeless in Chelsea Massachusetts
12/04/1909 - Philadelphia's Shibe Park (later Connie Mack Stadium) opens
12/04/1911 - 1st non-stop London-Paris flight (Pierre Prier in 3h56m)
12/04/1917 - Bijou Theater opens at 222 W 45th St NYC (Demolished 1982)
12/04/1917 - Domenico Scarlatti and Jeab Cocteaus ballet premieres in Rome
12/04/1919 - British Parliament passes a 48-hour work week with minimum wages
12/04/1926 - Dutch Catholic Radio Broadcast (KRO) forms
12/04/1927 - Gen Chiang Kai-shek begins counter revolution in Shanghai
12/04/1928 - Assassination attempt on king Victor Emmanuel II of Italy
12/04/1930 - 4th Test Cricket WI v England ends in a draw after nine days
12/04/1930 - Wilfred Rhodes ends Test Cricket career aged 52 years 165 days
12/04/1931 - Joe McCarthy debuts as NY Yankee manager
12/04/1931 - Spanish voters reject the monarchy
12/04/1932 - Emmanuel Chabriers and Balanchines ballet premieres in Monte Carlo
12/04/1933 - Moffatt Field commissioned
12/04/1934 - Highest velocity wind ever recorded on Mt Washington, NH, 231 mph
12/04/1935 - "Your Hit Parade," debuts on radio
12/04/1935 - Germany prohibits publishing "not-Arian" writers
12/04/1935 - Royal Proclamation sets design of Canada's new Jubilee Silver Dollar
12/04/1938 - 1st US law requiring medical tests for marriage licenses (NY)
12/04/1938 - Stanley Cup: Chicago Blackhawks beat Toronto Maple Leafs, 3 games to 1
12/04/1938 - US began requiring medical tests for marriage licenses
12/04/1940 - Italy annexes Albania
12/04/1940 - NFL cuts clipping penalty from 25 yards to 15 yards
12/04/1941 - Stanley Cup: Boston Bruins sweep Detroit Red Wings in 4 games
12/04/1941 - Vichy-France's head of government Admiral Dalan consults with Hitler
12/04/1942 - 9th Golf Masters Championship: Byron Nelson wins, shooting a 280
12/04/1942 - Japan kills about 400 Filipino officers in Bataan
12/04/1943 - Allies conquer Soussa, North-Africa
12/04/1943 - Dutch Catholic University Nijmegen closed
12/04/1944 - Lillian Hellman's "Searching Wind," premieres in NYC
12/04/1945 - Canadian troops liberate Nazi concentration camp Westerbork, Neth
12/04/1945 - Harry Truman sworn in as 33rd pres
12/04/1945 - Richard Strauss completes his "Metamorphosis"
12/04/1945 - US liberates Buchenwald concentration camp
12/04/1946 - Syria gains independence from France
12/04/1951 - Israeli Knesset officially designated April 13 as Holocaust Day
12/04/1952 - Betsy Rawls wins LPGA Houston Weathervane Golf Tournament
12/04/1952 - Salaheddine Baccouche forms Tunisian government
12/04/1953 - 17th Golf Masters Championship: Ben Hogan wins, shooting a 274
12/04/1953 - KFDX TV channel 3 in Wichita Falls, TX (NBC) begins broadcasting
12/04/1953 - Keizo Yamada runs fastest marathon to date, at Boston
12/04/1954 - 18th Golf Masters Championship: Sam Snead wins, shooting a 289
12/04/1954 - 8th NBA Championship: Min Lakers beat Syracuse Nationals, 4 games to 3
12/04/1954 - Belgian Van Houtte government resigns
12/04/1954 - Bill Haley and Comets records "Rock Around Clock"
12/04/1954 - Joe Turner releases "Shake, Rattle and Roll"
12/04/1955 - 1st game in KC, KC A's beat Detroit Tigers, 6-2
12/04/1955 - Salk polio vaccine safe and effective; 4 billion dimes marched
12/04/1956 - Bandaranaike govt forms in Ceylon
12/04/1957 - Jim Spalding set a 2088 pin nine-game bowling record
12/04/1957 - USSR performs atmospheric nuclear test
12/04/1958 - 12th NBA Championship: St Louis Hawks beat Bost Celtics, 4 games to 2
12/04/1958 - Flemish Open air museum opens in Bokrijk
12/04/1959 - 13th Tony Awards: J B and Redhead win
12/04/1959 - Betsy Rawls wins LPGA Babe Didrikson-Zaharias Golf Open
12/04/1959 - France Observator reports torture practice by French army in Algeria