Sputnik launched into orbit. October, 4, 1957. Sputnik I. Sputnik I which means “Satellite 1” in Russian was the worlds first artificial satellite. It was launched by the Soviet Union and it was about the size of a beach ball.
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October, 4, 1957
On October, 4, 1957 the Sputnik I was launched and the U.S was caught off guard by this achievement.