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Feb 18, 1000
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Mar 9, 1100
magnetic compass: Feng Shui
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Telescope: Galileo Galilei
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Cotton Gin: Eli Whitney
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Photography: Joseph Nicephore
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Dynamite: Alfred Nobel
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Motion Picture: Francis Jenkins
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Zipper: Elias Howe
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Airplane: Wright Brothers
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Frozenfoods: Clarence Birdseye
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Television: Jhon Logie Baird
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Tapercoreder: Joseph Begun
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Atomicbomb: Albert Einstein
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