Answer:
I think your answer is D. Accurate calendar systems.
Explanation:
Formation of Political Parties. Political factions or parties began to form during the struggle over ratification of the federal Constitution of 1787. Friction between them increased as attention shifted from the creation of a new federal government to the question of how powerful that federal government would be.
Answer: C is the answer
Explanation:
In 1941 Japan attacked the U.S a pearl harbor Bringing the U.S into the conflict.
Answer:
They did not trade, this meant they had limited exotic resources.
