The first three articles of the Constitution establish three branches of government with specific powers: Executive (headed by the President), Legislative (Congress) and Judicial (Supreme Court). Power is separated and shared.
Egypt's government was a monarchy. The Pharaoh was in charge and had absolute power. He was believed to be a living God.
People in the Aztec empire were allowed to rise in a social class once they've proven themselves to the gods that they were worthy of "ascending" a social class. This did not happen that commonly. It often involved people showing athletic or war prowess which was seen as a sign that people were favored by the gods.
Abraham would have been predicted to be a school leader as an adolescent