Where and why did portugal first use enslaved Africans to work sugar crops?

The Portuguese introduced sugar plantations in the 1550s off the coast of their Brazilian settlement colony, located on the island Sao Vincente. The Portuguese first developed sugar plantations that relied on African slaves on islands ... sugar had become the principal crop and enslaved Africans were three times as ... While slaves usually did not work in

The Portuguese first developed sugar plantations that relied on African slaves on islands ... sugar had become the principal crop and enslaved Africans were three times

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