What year did Eli Whitney patent the cotton gin?

The year the Cotton Gin was built was 1793. Eli Whitney moved from New England to the South in 1792 He was provided a workshop by his employer in the south, Catherine Greene, when he completed it he took on a partner, Phineas Miller. This creation revolutionized Cotton Farming.

Note: Eli Whitney also designed a way to manufacture muskets by machine in such a way that the parts would be interchangeable. This method is known today as 'mass production'.