Answer:
1)Portugal
4) up to two million
5)Americas during the 18th century, when, according to historians' estimates, nearly three-fifths of the total volume of the transatlantic slave trade took place. The slave trade had devastating effects in Africa.
6)In late August, 1619, 20-30
9)a slave revolt that began on 9 September 1739, in the colony of South Carolina.