Answer:
The answer to the first question is the second one. Developed great civilizations without major influences from western Europe. The second one I think is developed mathematic and scientific systems.
Explanation:
As of right now There are currently seven countries in Central America: Guatemala, Belize, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama.
Answer is [happened before the present day].
The Berlin conference was convened to divide the land of Africa among the European nations.