<span>Frederick douglass, william lloyd garrison, and harriet tubman were all 19th-century leaders in the movement to abolish slavery.</span>
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Division of powers means splitting the powers and responsibilities of different branches of government. This is important to keep a system of checks and balances, which basically means that no single branch is too powerful.
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Answer:
He helped created modern astronomy.
Explanation:
In early 1610, he made the first in a remarkable series of discoveries. While the scientific doctrine of the day held that space was perfect, unchanging environments created by God, Galileo's telescope helped change that view. He used the telescope to revolutionise astronomy which had relied for millennia on observations and measurements made with the naked eye.
I would suggest posting this again if not already done
D because interest free would be a good thing