Not 100% sure and I'm sorry about that but I would say religion. I hope I helped.:)
The answer to this question is "Civil rights and feminism"
Answer:The Civil War had a greater impact on American society and the polity than any other event in the country's history. It was also the most traumatic experience endured by any generation of Americans. At least 620,000 soldiers lost their lives in the war, 2 percent of the American population in 1861.
Explanation:
American Revolution and French Revolution I believed
The Catholic Church suppressed many ideas of the Scientific Revolution and they even excommunicated Galileo for saying that the earth revolved around the sun