The answer is D. Niccoló Machiavelli
Answer:
In order to control their large empire, the Romans developed important ideas about law and government. They developed the best army in the world at that time, and ruled by force. They had fine engineering, and built roads, cities, and outstanding buildings.
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Because it turned the tied for the north so it helped the north win the war
The north won the war because of the battle
I would say it's the taxes the British imposed on the colonies after the war was over. (ex. stamp act, townshend act)