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John Fitch, was an American inventor, who, in 1787, built the first recorded steam-powered boat in the United States
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In 1793 Eli Whitney invented the cotton gin.The cotton gin is a mechanical device which removes the seeds from cotton, a process which had been extremely labor intensive
http://en.wikipedia.org/wiki/Eli_Whitney,_Jr.#Cotton_gin. -
Jefferson initiated the purchase by sending Livingston to Paris in 1801,
http://en.wikipedia.org/wiki/Louisiana_Purchase -
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