Retrieved September 18, 2018. ↑ Rodney Stark, For the Glory of God: How Monotheism Led to Reformations, Science, Witch-Hunts, and the End of Slavery ISBN 978-0-691-11436-1 (2003) ↑ Lamin Sanneh, Abolitionists Abroad: American Blacks and the Making of Modern West Africa, Harvard University Press ISBN 978-0-674-00718-5 (2001) ↑ Ostling, Richard N. (2005-09-17). "Human slavery: why was it accepted in the Bible?". Salt Lake City Deseret Morning News.