During the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism. Isolationists advocated non-involvement in European and Asian conflicts and non-entanglement in international politics.
Salutations!
What do tobacco, cotton, and rice have in common?
Tobacco, cotton and rice are all cash crops. That is what makes them common. They are cash crops because the transporters had no difficulty in transporting them due to many waterways.
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There were three Nebuchadnezzar's who reigned. Assuming that you are talking about Nebuchadnezzar I, he reigned during 1125 - 1104 BC.
The following are correct:
A moat filled with water from the Euphrates River surrounded the city.
Walls around the city provided protection from enemies.
The launching of D. Sputnik started the space race