Respuesta :

The slave trade began with Portuguese traders.

Explanation:

The Dutch were the most known for slave trading in parts of the 1600s, later in the following century. English and French controlled about half transatlantic slave trade. They've taken a large part of their human cargo from regions of West Africa between the Senegal and Niger Rivers.

Speaking of this; I'd assume originally the slave triangle trade's responsibility was the Dutch, along with the French and English.

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