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Paper was invented by Tsai Lun of China in 1009
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the magnetic compass was invented by ancient china in the 1100's
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the invention was invented by hans lippershey
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the cotton gin was invented by eli whitney
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the steam locomotive was invented by richard trevithick in 1804
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Dynamite was invented by elias howe in 1846
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the safety pin was invented by walter hunt in 1849.
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the sewing machine was invented by alfred nobel in1876
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the air conditoion was invented by dr. john gorrie in 1902
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the television was invented by philo t farnsworth in the 1920's
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frozen foods were invented by maxon food systems inc. in the 1920's
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the tape recorder was invented by Valdemar Poulsen in the 1940's.
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the atomic bomb was invented by the united states in 1945
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The polio vaccine was invented by Hilary Koprowski in 1952.
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the compact disc was invented by james russell in 1983
