1955 Calendar
What Happened In Year 1955?
- January 24, 1955 – New Year’s Day in Chinese calendar. Start of the year of the Wood Sheep in Chinese astrology.
- January 25, 1955 – The Soviet Union ends state of war with Germany.
- March 2, 1955 – King Norodom Sihanouk of Cambodia abdicates the throne in favor of his father, King Norodom Suramarit.
- April 12, 1955 – The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
- April 24, 1955 – The Bandung Conference ends: 29 non-aligned nations of Asia and Africa finish a meeting that condemns colonialism, racism, and the Cold War.
- May 12, 1955 – Austria regains its independence as the Allied occupation following World War II ends.
- May 14, 1955 – Cold War: Eight communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
- May 25, 1955 – In the United States, a night time F5 tornado strikes the small city of Udall, Kansas, killing 80 and injuring 273. It is the deadliest tornado to ever occur in the state and the 23rd deadliest in the U.S.
- June 13, 1955 – Mir Mine, the first diamond mine in the USSR, is discovered.
- July 15, 1955 – Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four others.
- July 17, 1955 – Disneyland is dedicated and opened by Walt Disney in Anaheim, California.
- July 28, 1955 – The Union Mundial pro Interlingua is founded at the first Interlingua congress in Tours, France.
- August 7, 1955 – Tokyo Telecommunications Engineering, the precursor to Sony, sells its first transistor radios in Japan.
- August 19, 1955 – In the Northeast United States, severe flooding caused by Hurricane Diane, claims 200 lives.
- October 5, 1955 – Disneyland Hotel opens to the public in Anaheim, California.
- October 29, 1955 – The Soviet battleship Novorossiisk strikes a World War II mine in the harbor at Sevastopol.
- December 14, 1955 – Albania, Austria, Bulgaria, Cambodia, Finland, Hungary, Ireland, Italy, Jordan, Laos, Libya, Nepal, Portugal, Romania, Spain and Sri Lanka join the United Nations.
- December 20, 1955 – Cardiff is proclaimed the capital city of Wales, United Kingdom.
- December 24, 1955 – NORAD Tracks Santa for the first time in what will become an annual Christmas Eve tradition.
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