- 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.
- 1736 – Foundation of the Kingdom of Corsica.
- 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.
- 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” 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 – First flight of the Boeing 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.
- 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, massacre 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 discotheque 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.
- 1994 – Marrakesh Agreement relating to foundation of World Trade Organization is adopted.
- 2002 – Air China Flight 129 crashes on approach to Gimhae International Airport in Busan, South Korea, killing 129 people.[1]
- 2013 – Two bombs explode near the finish line at the Boston Marathon in Boston, Massachusetts, killing three people and injuring 264 others.
- 2013 – A wave of bombings across Iraq kills at least 75 people.
- 2014 – In the worst massacre of the South Sudanese Civil War, at least 200 civilians were gunned down after seeking refuge in houses of worship as well as hospitals.
- 2019 – The cathedral of Notre-Dame de Paris in France is seriously damaged by a large fire.[2]
-Source: wikipedia