Explain why the 1920 was called the roaring 20th

Why did many nations resist napoleons rules

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire

List five north american and european countries in the non-communist bloc