1 янв 1793 г. - Eli Whitney invents the cotton gin
Описание:
Whitney noticed slaves were having difficulties removing seeds from cotton bolls. In his spare time, he made a device to make it quicker and easier to do so. By 1860, cotton became a cash crop. (Src: http://score.rims.k12.ca.us/score_lessons/cotton_gin/pages/reading.html)
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