Transatlantic slavery was responsible for the largest, long-distance, forced migration in history. But, since the Europeans did not venture into the interior of Africa until after abolition, how did approximately 12 million Africans fall into their clutches?

Timewatch delves into history and finds that, contrary to popular belief, most of the business was conducted by black slave merchants trading on the coast with Europeans. And slavery was a fact of life long before the transatlantic trade began. For centuries, Africa supplied eunuchs and wives to the Arab world, sacrificial victims to tyrants, and domestic labour.