Many people started to get strong nationalism to where they preferred native born Americans over foreign born people, also people felt that foreigners (especially the Irish) were taking their jobs and therefore would not give work to them
Archival research &a Oral history are two ways.
Answer: Appropiate
Explanation: "Dark Ages" is indeed appropiate because the religious people burnt down all the previous knowledge of Romans, such as mathematics, physics, philosophy, etc. All because they wanted everyone to follow "God" and their whole catholic church, so if people were to read all this knowledge, specially the philosophical and religious knowledge that Romans wrote, no one would've gone with the catholic church and believe it.
Answer: large numbers of women were recruited into jobs vacated by men who had gone to fight in the war. New jobs were also created as part of the war effort, for example in munitions factories.
Explanation: Before the war women didnt have many right as men did. So after the war happend people started realizing it wasnt far and letting women work.