Signed in 1863, the Emancipation Proclamation freed all slaves in the United States.
The four main elements of the human body are oxygen, hydrogen, carbon, and nitrogen.
In 1750 slaves on farms had to seperate seeds from the cotton. As history went on the cotton gin was invented. The cotton do twoce the work a slave could do in a day. It was also cheaper to use a cotton gin than a real person.
