Halley’s Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles) Halley’s Comet is one of…
History
9 April 1957
The Suez Canal in Egypt is cleared and opens to shipping following the Suez Crisis. The Suez Canal is an artificial waterway that connects the…
8 April 1911
Dutch physicist Heike Kamerlingh Onnes discovers superconductivity. Superconductivity is a phenomenon that occurs when certain materials are cooled to extremely low temperatures, usually near absolute…
7 April 1954
United States President Dwight D. Eisenhower gives his “domino theory” speech during a news conference. Dwight D. Eisenhower was the 34th President of the United…
6 April 1973
Launch of Pioneer 11 spacecraft. Pioneer 11 was a NASA spacecraft launched on April 6, 1973, with the primary mission of studying the gas giant…
5 April 1976
In China, the April Fifth Movement leads to the Tiananmen Incident. The incident was a response to the sudden death of former Chinese Communist Party…
4 April 1963
Bye Bye Birdie, a musical romantic comedy film directed by George Sidney, was released. Bye Bye Birdie is a popular musical comedy that premiered on…
3 April 1981
The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco. The Osborne 1 is a historic…
2 April 1982
Argentina invades the Falkland Islands. The Falklands War was fought between Argentina and the United Kingdom in 1982 over the disputed Falkland Islands, South Georgia,…
1 April 1976
Steve Jobs and Steve Wozniak found Apple Computer, Inc. The history of Apple computers dates back to 1976 when Steve Jobs and Steve Wozniak founded…