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In 287 BC, Archimedes was born in Syracuse, Italy.
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In 262 BC, Archimedes created the screw to assist King Hieron in building his ship.
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In 260 BC, Archimedes mathematically worked out the principal of the lever and discovers buoyancy.
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In 212 BC, Archimedes was murdered because a Roman soldier thought that he had valuable items but they were just mathematic tools.
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Today we can use Archimedes’ Principal with boats!