Your answers are Gana, Mali, and Songhai.
House of Reps and Senate is in the Legislative Branch.
The President is in the Executive Branch.
The Courts are the Judicial Branch
Monroe doctrine
Monroe doctrine warns European countries to not colonize or puppet monarch
Feudalism worked easy because it was a system that worked from top to bottom. At the top you had the King which provided money for the Nobility that provided troops and protection for the king. Then the Nobility would bestow the land to his knights that would give the land to the peasants and they owned the land and farmer on it. The knights would provide military service for food that they farmed.