How did Constantine change the organization of the Roman Empire when he came to power?

When were criminals first used to create a system to catch other criminals

Sarah has been collecting intensive interviews with women who organize in grassroots movements for wages for housework. now she is looking over the interviews and trying to find common themes within them. what part of the research process is she in?

Any study/memorization tips? i have exams in a week and it would be great to try suggestions!you ; )