WHAT HAPPENED ON 15. APRIL
Want to find out what all happened on 15. April

The Lateran Council condemned the Council of Hieria and anathematized its iconoclastic rulings. (15. April 769)

Bari, the last Byzantine possession in southern Italy, is surrendered to Robert Guiscard. (15. April 1071)

Tokhtamysh–Timur war: Battle of the Terek River: Timur defeats Tokhtamysh of the Golden Horde at the Volga. The Golden Horde capital city, Sarai, is razed to the ground and Timur installs a puppet ruler on the Golden Horde throne. Tokhtamysh escapes to Lithuania. (15. April 1395)

Battle of Formigny: Toward the end of the Hundred Years' War, the French attack and nearly annihilate English forces, ending English domination in Northern France. (15. April 1450)

Battle of Rain: Swedes under Gustavus Adolphus defeat the Holy Roman Empire during the Thirty Years' War. (15. April 1632)

Tokugawa shogunate forces put down the Shimabara Rebellion when they retake Hara Castle from the rebels. (15. April 1638)

Irish Confederate Wars: A Confederate Irish militia is routed in the Battle of Kilrush when it attempts to halt the progress of a Parliamentarian army. (15. April 1642)

The Pocotaligo Massacre triggers the start of the Yamasee War in colonial South Carolina. (15. April 1715)

Serse, an Italian opera by George Frideric Handel receives its premiere performance in London, England. (15. April 1738)

Samuel Johnson's A Dictionary of the English Language is published in London. (15. April 1755)

Preliminary articles of peace ending the American Revolutionary War (or American War of Independence) are ratified. (15. April 1783)

William Wordsworth and his sister, Dorothy see a "long belt" of daffodils, inspiring the former to pen I Wandered Lonely as a Cloud. (15. April 1802)

Thomas Hopkins Gallaudet and Laurent Clerc founded the American School for the Deaf, the first American school for deaf students, in Hartford, Connecticut. (15. April 1817)

President Abraham Lincoln calls for 75,000 Volunteers to quell the insurrection that soon became the American Civil War (15. April 1861)

Abraham Lincoln dies after being shot the previous evening by actor John Wilkes Booth. (15. April 1865)

The General Electric Company is formed. RMS Titanic disaster. (15. April 1892)

Closing ceremony of the Games of the I Olympiad in Athens, Greece. (15. April 1896)

Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines. (15. April 1900)

The British passenger liner RMS Titanic sinks in the North Atlantic at 2:20 a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive. (15. April 1912)

Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy. (15. April 1920)