How were slaves obtained from the African interior? Do Barbot and Equiano agree on the methods used?

The correct answer to this open question is the following.

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Black slaves were obtained from the African interior through the Trans Sharan trade and the Transatlantic Slave trade. Whites striped members of families away to be sold in the Transatlantic Slave Trade. Of course, Equiano did not agree with the methods used because they were cruel. As he described in his book "The Interesting Narrative of the Life of Olaudah Equiano," African slaves were transported to the Americas in overcrowded spaces in ships that crossed teh ocean on a long trip. Inside the ship, the spread of diseases sickened many slaves and killed others.

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