<span>Nicolaus Copernicus proposed the Heliocentric theory.
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Answer:
Scientific Revolution.
Explanation:
Humankind owns much to the brave and daring work men of science like Galileo Galilei, Nicholas Copernicus and Isaac Newton. They made observations and develop scientific knowledge despite its disagreement with the official dogmas of the Roman Catholic Church.
It was the Civil rights Act of 1866 that was passed by Congress to protect the voting rights of blacks in the South, although it wasn’t very effective, because it couldn't be enforced.
