Americans trading goods with Eurasia.
Europeans transferred manufactured goods to Africa,people exchanged the goods for captured Africans, slaves were transferred to America and the West Indies in exchange for tobacco, sugar, and coffee.
The Americans used Africans instead of natives for a few reasons. One was that they had already been exposed to European diseases, while the natives had no immune system built up against them. Also, they were darker and didn't know the land which made them much easier to see and catch. Lastly, because they already knew how to farm to the Americans liking.
The Middle Passage
The middle passage was the transatlantic leg of the triangular trade. This is where Africans were captured and brought to America to become slaves. Sever cruelty to the Africans occurred in the middle passage.