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Chuck Yeager breaks through the sound barrier.
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The seven pilots enter the Edwards Air Force Base to test different rockets.
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The Soviet Union successfully launched Sputnik I, the world's first artificial satellite.
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Yuri Gagarin, a Russian, became the first human to enter space.
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Alan Shepard became the first American to enter space.
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John F. Kennedy makes a speech saying that America will go to the moon by the end of the year.
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Gus Grissom becomes the second American to enter space. His rocket sunk in the ocean.
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John Glenn orbits the earth in the Atlas rocket.
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Gordo Cooper becomes the last American to go to space alone, orbiting the Earth 22 times.
