Answer: Transformation in thinking that occurred in the 1500's and 1600's caused by scientific observation, experimentation, and questioning of traditional opinions. It changed the way Europeans looked at the world. What did the Greek astronomer Ptolemy believe? He believed the Earth was the center of the universe.
Explanation:
like if im right
Federalism: shared powers for the branches of government. It's powers shared between the national and state government. :) (Good luck with history!)