The leading cause of the African American slave trade in the 15th - 19th centuries was that Trade ships profited from the exploitation of the slaves which were used as workers in the Americas in order to produce cheap materials for America.
According to document A, The colonization of the Americas created an increased demand for slaves labors. The slaves came from local groups in Africa that raided another tribe and took hostages. These hostages were then sold for main guns or other materials and goods. This made many great powers rise up and gain strength. They even sold some of their own people by corrupting the judicial system.
According to document B, Made many rich and brought the world together. The slaves were not happy with the new