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The sputnick I, was launched by tyhe soviet union on October 4th, 1957
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Soviet cosmonaut, Yuri Gagarin, completes the first manned space flight, orbiting the Earth in 108 minutes.
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John Glenn was the first American to orbit Earth, completing three orbits.
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Cosmonaut Aleksei Leonov takes man's first space walk.
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Neil Armstrong and Edwin Aldrin of Apollo 11 spend 21 1/2 hours on the moon, 2 1/2 of those outside the capsule. and became the first to walk on the moon.