Events on April 12 40
Year 238
Gordian II loses the Battle of Carthage against the Numidian forces loyal to Maximinus Thrax and is killed. Gordian I, his father, commits suicide.
Year 627
King Edwin of Northumbria is converted to Christianity by Paulinus, bishop of York.
Year 1204
The Crusaders of the Fourth Crusade breach the walls of Constantinople and enter the city, which they completely occupy the following day.
Year 1776
American Revolution: With the Halifax Resolves, the North Carolina Provincial Congress authorizes its Congressional delegation to vote for independence from Britain.
Year 1807
The Froberg mutiny ends when the remaining mutineers blow up the magazine of Fort Ricasoli.
Year 1820
Alexander Ypsilantis is declared leader of Filiki Eteria, a secret organization to overthrow Ottoman rule over Greece.
Year 1831
Soldiers marching on the Broughton Suspension Bridge in Manchester, England cause it to collapse.
Year 1861
American Civil War: Battle of Fort Sumter. The war begins with Confederate forces firing on Fort Sumter, in the harbor of Charleston, South Carolina.
Year 1862
American Civil War: The Andrews Raid (the Great Locomotive Chase) occurs, starting from Big Shanty, Georgia (now Kennesaw).
Year 1864
American Civil War: The Battle of Fort Pillow: Confederate forces kill most of the African American soldiers that surrendered at Fort Pillow, Tennessee.
Year 1910
SMS Zrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
Year 1917
World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
Year 1927
Shanghai massacre of 1927: Chiang Kai-shek orders the Communist Party of China members executed in Shanghai, ending the First United Front.
Year 1927
Rocksprings, Texas was hit by an F5 tornado that destroyed 235 of the 247 buildings in the town and killed 72 townspeople and injured 205; third deadliest tornado in Texas history.
Year 1928
The Bremen, a German Junkers W 33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
Year 1934
The strongest surface wind gust in the world at the time of 231 mph, is measured on the summit of Mount Washington, New Hampshire. It has since been surpassed.
Year 1934
The U.S. Auto-Lite strike begins, culminating in a five-day melee between Ohio National Guard troops and 6,000 strikers and picketers.
Year 1937
Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
Year 1945
U.S. President Franklin D. Roosevelt dies in office; Vice President Harry S. Truman becomes President upon Roosevelt's death.
Year 1945
The U.S. Ninth Army under General William H. Simpson crosses the Elbe River astride Magdeburg, and reached Tangermünde—only 50 miles from Berlin.
Year 1961
The Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight, Vostok 1.
Year 1963
The Soviet nuclear-powered submarine K-33 collides with the Finnish merchant vessel M/S Finnclipper in the Danish straits.
Year 1970
Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.
Year 1980
Samuel Doe takes control of Liberia in a coup d'état, ending over 130 years of minority Americo-Liberian rule over the country.
Year 1990
Jim Gary's "Twentieth Century Dinosaurs" exhibition opens at the Smithsonian Institution National Museum of Natural History in Washington, D.C. He is the only sculptor ever invited to present a solo exhibition there.
Year 1992
The Euro Disney Resort officially opens with its theme park Euro Disneyland; the resort and its park's name are subsequently changed to Disneyland Paris.
Year 1999
United States President Bill Clinton is cited for contempt of court for giving "intentionally false statements" in a civil lawsuit; he is later fined and disbarred.
Year 2002
A suicide bomber blows herself up at the entrance to Jerusalem's Mahane Yehuda Market, killing seven people and wounding 104.
Year 2007
A suicide bomber penetrates the Green Zone and detonates in a cafeteria within a parliament building, killing Iraqi MP Mohammed Awad and wounding more than twenty other people.
Year 2013
Two suicide bombers kill three Chadian soldiers and injure dozens of civilians at a market in Kidal, Mali.
Year 2014
The Great Fire of Valparaíso ravages the Chilean city of Valparaíso, killing 16, displacing nearly 10,000, and destroying over 2,000 homes.
Year 2017
Zuma Must Fall protests resume in South Africa, with Julius Malema addressing large crowds in Pretoria.[1]