1 ene 1793 año - Eli Whitney invents the cotton gin
Descripción:
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)
Añadido al timeline:
Westward Exp. Timeline
fecha:
