Answer:
True
Step-by-step explanation:
The Atlantic slave trade started shortly after the arrival of Christopher Columbus in the Americas in 1492. The first African slaves were brought in 1502 to the Spanish and Portuguese colonies.
During the first years of the Atlantic slave trade, the Portuguese were more active than the Spanish, perhaps because the Portuguese colony (Brazil) is geographically closer to the African continent than the Spanish colonies. In fact, the majority of African slaves that were brought to the Americas were taken to Brazil.