War victory or even entrance into a war.
Reconquista means "reconquest" and is generally used to describe the re-population of the southwest American territories by Mexicans (since their land was originally taken by the United States).
Answer:
Europeans changed the economy from a model of producing foods for need to mainly the production of cash crops. All crops produced by Africans were exported and prices were set by the colonies. Africans were not allowed to grow these cash crops to benefit themselves.