Eli Whitney was born in December 8, 1765, in Massachusetts, the United States of America he was best remembered for inventing the cotton gin most important for the concept of mass producing interchangeable parts. Eli went to Yale college and learned most of the new concepts in science and the applied arts as technology was called in the old days. When the english cotton mills where hungry for cotton the southern states exported small amounts of black-seed long-staple variety of cotton. he set to work on a crude model of the cotton gin, back then the cotton gin had only three parts 1, a hopper to feed the cotton into the gin, 2, a revolving cylinder studded with hundreds of short wire hooks, closely in set ordered lines to match grooves cut
