In Africa there were a number of societies and kingdoms which kept slaves, before there was any regular commercial contact with Europeans, including the .
African Slave trade: who started it, and who stopped it Historians estimate that between 10 and 18 million Africans were enslaved by Arab slave traders and .
Documentary that examines the transatlantic slave trade which took place across the Atlantic Ocean from the 16th through to the 19th centuries. The transatlantic .
View lesson: Slavery has occurred in many forms .
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