Since the beginning of time tribes and groups of people have fought and conquered each other. After these people were conquered the men would be slaves to the people that conquered them. This happened in Africa and the U.S. with the triangle trade, where slaves were traded from Africa to the U.S. for raw materials. The slaves picked mainly cotten and other crops were picked for money in the southern states like Mississippi and Alabama. Cotten was the main crop for these slave plantations it took hundreds of slaves to clean the cotten, but in 1793 when the cotten gin was made by Eli Whitney it took one slave to clean 100 times the cotten. This machine worked by putting the cotton bolls into the top of the machine. Next, you turn the handle, which runs the cotton through the wire teeth that combs out the seeds. Then the cotton is pulled out of the wire teeth and out of the cotton gin. After this cotten was pulled out of the cotton gin it was put into a spinning jenny which spun the into yarn and sold.