Eli Whitney invents Cotton Gin. The cotton gin made the cotton industry of the south explode. Before the cotton gin, separating the cotton from its bowl took to long, making it unprofitable. However, after Eli Whitney unveiled the cotton gin, processing cotton became much easier resulting in greater availability and cheaper cloth. The invention also had the by-product of increasing the number of slaves needed to pick the cotton, indirectly strengthening the arguments for continuing slavery.