The Neutrality Acts (1936-1939) held that the United States would not get involved in the growing unrest that was taking place in Europe in the years leading up to World War II, since the US during this time was very isolationist in temperament. <span />
Answer:
Mostly by D. Overland trails
Explanation:
The oregon trail was the most popular, and were travelled by thousands if not more people by wagon.
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