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Prior to the Cotton Gin, there were machines called Roller Gins. These machines squished the cotton between two long cilinders called rollers. This device was not as effective as the Whitney's Gin, and was only a minor improvement over hand seperating the seeds.
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Eli Whitney invented his Cotton Gin at some point between the start of the year and October 28th
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On this date Eli Whitney aplied for a patent for his Cotton Gin
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This is an example of a 1896 advertizement for a Cotton Gin. By this time, Whitney had died, and that ment that companies could pick up on the idea.
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With computers and electricity, Cotton Gins have become enormous and complicated peices of machienery. This allows for faster, more efficient and cleaner cotton productiuon.
