I think the answer is C because slavery started to slow in other places.
Answer: Passed by Congress June 4, 1919, and ratified on August 18, 1920, the 19th amendment granted women the right to vote. ....C
Explanation: Google
Answer: D.Protestant Reformation
Explanation:
Ninety-five Theses, propositions for debate concerned with the question of indulgences, written (in Latin) and possibly posted by Martin Luther on the door of the Schlosskirche (Castle Church), Wittenberg, on October 31, 1517. This event came to be considered the beginning of the Protestant Reformation.
O C. They developed some of the math used today
Nations began mobilizing for war