On This Day in History
September 11
September 11 Terrorist Attacks in the United States
Coordinated terrorist attacks by al-Qaeda destroyed the World Trade Center, damaged the Pentagon, and claimed nearly 3,000 lives, reshaping global politics and security.
Serena Williams Wins First Grand Slam Title
Serena Williams won her first Grand Slam title at the US Open, beginning one of the most successful careers in tennis history.
First Use of GPS Technology by the U.S. Military
The U.S. military officially began using GPS technology for navigation, laying the foundation for modern global positioning systems.
NASA Launches Pioneer 11 to Saturn
Pioneer 11 became the first spacecraft to fly past Saturn, sending back unprecedented images and data of the planet and its rings.
Chilean Military Coup Overthrows President Salvador Allende
A military coup led by General Augusto Pinochet overthrew Chilean President Salvador Allende, leading to years of dictatorship.
Opening of Sydney Opera House Concert Hall
The Concert Hall of the Sydney Opera House opened, becoming one of the most iconic venues for performing arts worldwide.
First Test of Emergency Broadcast System in the U.S.
The United States conducted the first nationwide test of the Emergency Broadcast System to alert citizens during crises.
First Commercial Airline Flight over the North Pole
Scandinavian Airlines completed the first commercial airline flight over the North Pole, shortening travel time between continents.
First Commercially Successful Computer, UNIVAC I, Delivered
The first UNIVAC I computer was delivered, becoming the first commercially successful computer and revolutionizing data processing.
First Cannes Film Festival Opens
The inaugural Cannes Film Festival opened in France, establishing itself as one of the world’s most prestigious film events.
Lascaux Cave Paintings Discovered
The prehistoric Lascaux cave paintings were discovered in France, offering invaluable insight into early human art and culture.
BBC Begins First Daily Television Broadcasts
The BBC began the world’s first daily television broadcasts, marking the start of regular public TV service.
First Football World Cup Qualifier Match Played
The first FIFA World Cup qualifier match was played, initiating the global process for teams to compete in football’s premier tournament.
First Use of an Iron Lung in Medical Treatment
The iron lung was used for the first time to treat a patient with polio, marking a breakthrough in respiratory medical technology.
First Patent for the Refrigerator Granted
John Gorrie received the first U.S. patent for mechanical refrigeration, revolutionizing food preservation and healthcare.
Foundation of Catalonia's National Day (La Diada)
Barcelona fell to Bourbon troops during the War of the Spanish Succession, a date later commemorated as Catalonia’s National Day.
First Newspaper Published in America, 'Publick Occurrences'
*Publick Occurrences Both Forreign and Domestick*, the first multi-page newspaper in America, was published in Boston.
Battle of Vienna Halts Ottoman Empire's Advance into Europe
The Battle of Vienna ended with a decisive Christian coalition victory, stopping the Ottoman Empire’s expansion into Central Europe.
Taj Mahal Design Commissioned by Mughal Emperor Shah Jahan
Mughal Emperor Shah Jahan commissioned the design of the Taj Mahal in memory of his wife Mumtaz Mahal, creating one of the world’s architectural wonders.
Battle of Stirling Bridge: Scottish Victory over England
William Wallace and Andrew Moray led Scottish forces to a decisive victory against England at the Battle of Stirling Bridge.