Launch of Pioneer 11
On April 5, 1973 (some sources cite April 6 UTC (Coordinated Universal Time), the Pioneer 11 space probe launched from Cape Canaveral, Florida.
Technology
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Launch of Sputnik I
On October 4, 1957, the Soviet Union launched Sputnik I, the first man-made object in space, which sparked the start of the Space Race with the United States.
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First Man in Space
On April 12, 1961, Soviet cosmonaut Yuri Gagarin became the first person to travel into space.
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Final Mission to the Moon
On December 11, 1972, Apollo 17 became the last manned NASA mission to the Moon.
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First U.S. Hologram Postal Stationary
On December 3, 1989, the USPS issued its first postal item to be produced with a hologram – a 25¢ stamped envelope picturing a space shuttle docking at a space station.
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Founding of UNESCO
On November 16, 1945, the UN created the United Nations Educational, Scientific, and Cultural Organization (UNESCO).
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Happy Birthday Neil Armstrong
Neil Alden Armstrong, the first man to walk on the Moon, was born on August 5, 1930, near Wapakoneta, Ohio.
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Samuel Morse Dies
On April 2, 1872, telegraph inventor Samuel Morse died. President Woodrow Wilson address Congress on April 2, 1917, asking to declare war and join World War I.
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First Transatlantic Radio Transmission
On December 12, 1901, Guglielmo Marconi successfully sent the first radio transmission across the Atlantic Ocean.
