10 Apr. 2014. Haldeman, Annette. "Slavery in the Modern World: A History of Political, Social, and Economic Oppression." Reference 2011: 130-32.
Slavery appeared in the United States in late of seventeen centuries as a result of the trade market. These slaves came from Africa to work in large plantations for free labor in America. Historians believe that the first ship of slaves to arrive in America was Dutch to the Virginia colony of Jamestown in 1619 with around 20 slaves. They were used slaves to work in the tobacco, sugar, rice, cotton, and coffee plantations. But slavery emerged the restriction of African’s lives in North America.
(2013). Slavery in the World Today. Retrieved from http://www.americanthinker.com/2013/10/slavery_in_the_world_today.html Einhorn, R. L.(2008). Slavery. Enterprise & Society 9(3), 491-506.