Right before the 20's started World War I happened, so many of the young men of the world were apart of that war and saw horrific things. So after the war they wanted to forget so they had as much fun and parties as they could.
Answer:
because they am hungry for grass
Explanation:
The answer to this question is: Middens
The language derives from the early Scandinavian region. It is usually considered an environmental waste that consists of animal bone, human excrement, botanical material, shells, sherds, mollusk, lithics (especially debitage), and other artifacts
Trust within the community, not being stupid, and a sense of political (or physical) strength.
Simply, they united because coming together would be the only way to defeat Persia, or else they would lose separately. Hopefully this helped!