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Galileo was born.
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Galileo become a professor of mathematics at the University of Pisa.
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After teaching for a few years he started to do experiments. His first discovery was the law of the pendulum.
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Galileo made a telescope that he studied space with.
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Galileo made a telescope that he studied space with.
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Galileo published a book about his findings in space.
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Galileo said that the sun was in the middle of the solar system.
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At the age of 67 Galileo was sentenced to life in prison because he said that the sun was in the middle of the solar system.
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Galileo died at the age of 77.
