Answer:
The attack on Pearl Harbor
Explanation:
The attack on Pearl Harbor was a strike on U.S. from Japan but they had done this because although the U.S. had stayed neutral they were still giving Great Britain and other Ally powers supplies.
The Seneca Falls Convention had much importance to today's society. It held the first ever Women's rights convention in the United States, and in a way, kicked off what women's rights activists are today.
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The abolitionist movement was very powerful in the North, since the North did not rely heavily on a slave population and because slavery had long-since been depleted in the region.
Monarchy it was ran by a king and queen.
it's an example of repetition