Answer:
Civil War was the subject to be discussed before and for any topic or subject to be discussed there should be its evolution then only everyone's focus goes 0n that things and they make it as topic and presents in different ways like writings readings etc in the past there used to be war and conflict about which public were unknown and many writers started to wrote abt regionalism writings and wrote books as well but nowadays people can easily get to know abt any things on Internet that's why......