15 April Events

April 15 is the 105th day of the year (106th in leap years) in the Gregorian calendar. There are 260 days remaining until the end of the year. This date is slightly more likely to fall on a Wednesday, Friday or Sunday (58 in 400 years each) than on Monday or Tuesday (57), and slightly less likely to occur on a Thursday or Saturday (56).

Events

769 – The Lateran Council condemned the Council of Hieria and anathematized its iconoclastic rulings.
1071 – Bari, the last Byzantine possession in southern Italy, is surrendered to Robert Guiscard.
1395 – Timur defeats Tokhtamysh of the Golden Horde at the Battle of the Terek River. The Golden Horde capital city, Sarai, is razed to the ground and Timur installs a puppet ruler on the throne.
1450 – 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.
1632 – Battle of Rain: Swedes under Gustavus Adolphus defeat the Holy Roman Empire during the Thirty Years' War.
1642 – Irish Confederate Wars: A Confederate Irish militia is routed in the Battle of Kilrush when it attempts to halt the progress of a Royalist Army.
1715 – The Pocotaligo Massacre triggers the start of the Yamasee War in colonial South Carolina.
1738 – Serse, an Italian opera by George Frideric Handel receives its premiere performance in London, England.
1755 – Samuel Johnson's A Dictionary of the English Language is published in London.
1783 – Preliminary articles of peace ending the American Revolutionary War (or American War of Independence) are ratified.
1817 – Thomas Hopkins Gallaudet and Laurent Clerc founded the American School for the Deaf, the first American school for deaf students, in Hartford, Connecticut.
1861 – President Abraham Lincoln calls for 75,000 Volunteers to quell the insurrection that soon became the American Civil War
1865 – President Abraham Lincoln dies after being shot the previous evening by actor John Wilkes Booth. Vice President Andrew Johnson, becomes President upon Lincoln's death.
1892 – The General Electric Company is formed.
1896 – Closing ceremony of the Games of the I Olympiad in Athens, Greece.
1900 – Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
1907 – Triangle Fraternity is founded at the University of Illinois at Urbana–Champaign
1912 – 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.
1920 – 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.
1922 – U.S. Senator John B. Kendrick of Wyoming introduces a resolution calling for an investigation of a secret land deal, which leads to the discovery of the Teapot Dome scandal.
1923 – Insulin becomes generally available for use by people with diabetes.
1924 – Rand McNally publishes its first road atlas.
1936 – First day of the Arab revolt in Mandatory Palestine.
1936 – Aer Lingus (Aer Loingeas) is founded by the Irish government as the national airline of the Republic of Ireland.
1940 – The Allies begin their attack on the Norwegian town of Narvik which is occupied by Nazi Germany.
1941 – In the Belfast Blitz, two-hundred bombers of the German Luftwaffe attack Belfast, killing around one thousand people.
1942 – The George Cross is awarded "to the island fortress of Malta: Its people and defenders" by King George VI.
1945 – Bergen-Belsen concentration camp is liberated.
1947 – Jackie Robinson debuts for the Brooklyn Dodgers, breaking baseball's color line.
1952 – The maiden flight of the B-52 Stratofortress
1955 – McDonald's restaurant dates its founding to the opening of a franchised restaurant by Ray Kroc, in Des Plaines, Illinois
1960 – At Shaw University in Raleigh, North Carolina, Ella Baker leads a conference that results in the creation of the Student Nonviolent Coordinating Committee, one of the principal organizations of the Civil Rights Movement in the 1960s.
1964 – The first Ford Mustang rolls off the show room floor, two days before it is set to go on sale nationwide.
1969 – The EC-121 shootdown incident: North Korea shoots down a United States Navy aircraft over the Sea of Japan, killing all 31 on board.
1970 – During the Cambodian Civil War, massacres of the Vietnamese minority results in 800 bodies flowing down the Mekong river into South Vietnam.
1986 – The United States launches Operation El Dorado Canyon, its bombing raids against Libyan targets in response to a bombing in West Germany that killed two U.S. servicemen.
1989 – Hillsborough disaster: A human crush occurs at Hillsborough Stadium, home of Sheffield Wednesday, in the FA Cup Semi-final, resulting in the deaths of 96 Liverpool fans.
1989 – Upon Hu Yaobang's death, the Tiananmen Square protests of 1989 begin in China.
2013 – Two bombs explode near the finish line at the Boston Marathon in Boston, Massachusetts, killing three people and injuring 264 others.
2014 – More than 200 female students are declared missing after a mass kidnapping in Borno State, Nigeria.

Holidays and observances

Christian feast day:
Abbo II of Metz
Father Damien (The Episcopal Church)
Hunna
Paternus of Avranches
April 15 (Eastern Orthodox liturgics)
Day of the Sun (North Korea)
Earliest day on which Sechseläuten can fall, while April 21 is the latest; celebrated on the third Monday in April. (Zürich)
Father Damien Day (Hawaii)
Hillsborough Disaster Memorial (Liverpool, England)
Jackie Robinson Day (United States)
Tax Day, the official deadline for filing an individual tax return (or requesting an extension). (United States, Philippines)
Universal Day of Culture
World Art Day

Source: wikipedia