Explanation:
Europeans during the Middle Ages had poor knowledge of geography (knew little about the outside world)
Beginning in the 1400's (15th century), western European nations (Portugal, Spain and then England, Holland and France) undertook expeditions to explore the Americas as well as new regions in Africa and Asia.
Henry Venn and Rufus Anderson simultaneously developed a strategy of Indigenisation in response to the extreme paternalism exercised by western missionaries of the early 19th century, particularly in Asia.
Most slaves were field workers, easily replaced, and therefore, the Europeans filled their pockets with goods from West Coast Africa, including human cargo.
Hope this answer helps.
Start attending meetings alot of political groups host meeting that any age can attend. And do research on your own. Go to rallys and stuff. Hope it helps alittle (: