2005: YouTube is launched by a group of college students, eventually becoming the largest video sharing website in the world and a main source for viral videos.
2005: Seven people are killed and 151 wounded in a series of bombings by suspected al-Qaeda-linked militants that hit Makati, Davao City, and General Santos City, all in the Philippines.
2005: Lebanese self-made billionaire and business tycoon Rafic Hariri is assassinated in Beirut, along with 21 other people, when the equivalent of around 1,000 kg of TNT is detonated as his motorcade drove near the St. George Hotel.
2004: In a suburb of Moscow, Russia, the roof of the Transvaal water park collapses, killing more than 25 people, and wounding more than 100 others.
2000: The spacecraft NEAR Shoemaker enters orbit around asteroid 433 Eros, the first spacecraft to orbit an asteroid.
1998: An oil tanker train collides with a freight train in Yaoundé, Cameroon, spilling fuel oil. One person scavenging the oil created a massive explosion which kills 120.
1990: The Voyager 1 spacecraft takes the photograph of planet Earth that later become famous as Pale Blue Dot.
1979: In Kabul, Setami Milli militants kidnap the American ambassador to Afghanistan, Adolph Dubs who is later killed during a gunfight between his kidnappers and police.
1945: World War II: Mostar is liberated by Yugoslav partisans
1945: World War II: Navigational error leads to the mistaken bombing of Prague, Czechoslovakia by an American squadron of B-17s assisting in the Soviet's Vistula-Oder Offensive.
1855: Texas is linked by telegraph to the rest of the United States, with the completion of a connection between New Orleans and Marshall, Texas.
1852: Great Ormond St Hospital for Sick Children, the first hospital in England to provide in-patient beds specifically for children, is founded in London.
1849: In New York City, James Knox Polk becomes the first serving President of the United States to have his photograph taken.
1797: French Revolutionary Wars: Battle of Cape St. Vincent: John Jervis, (later 1st Earl of St Vincent) and Horatio Nelson (later 1st Viscount Nelson) lead the British Royal Navy to victory over a Spanish fleet in action near Gibraltar.
1655: Arauco War: The Mapuche under their elected military leader, Clentaru, rise up against the Spanish in an insurrection in present-day central Chile.
1530: Spanish conquistadores, led by Nuño de Guzmán, overthrow and execute Tangaxuan II, the last independent monarch of the Tarascan state in present-day central Mexico.
748: Abbasid Revolution: The Hashimi rebels under Abu Muslim Khorasani take Merv, capital of the Umayyad province Khorasan, marking the consolidation of the Abbasid revolt.