Francis Bok
Francis Piol Bol Bok (born February 1979), a Dinka tribesman and citizen of South Sudan, was a slave for ten years and later became an abolitionist and author living in the United States. == Biography == On May 15, 1986, he was captured and enslaved at the age of seven during an Arab militia raid on the village of Nyamlell in southern Sudan during the Second Sudanese Civil War.