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1490s

1490s: The Portuguese established sugar plantations in the Gulf of Guinea, specifically on the island of São Tomé.

1490s: The Portuguese established sugar plantations in the Gulf of Guinea, specifically on the island of São Tomé. This region became a significant center for sugar production and slave labor prior to the boom in the Americas.

Source  ·  p. 1 Eltis & Richardson, Atlas, 1