This term also referred to as westward expansion means to move further westward into America from original states such as Virgina and Pennsylvania into states such as California and the Dakota's
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Answer:
A A Declining economy
Explanation:
There poor economic policies led to a weakend military which allowed barbarians easy access to the empire.
Depending on your definition 26 years
I think it's B I'm not sure try looking on google
Answer:
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Without Slavery, Would The U.S. Be The Leading Economic Power?14:51
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November 19, 2014
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During the middle of the 1800s, cotton became the world's largest commodity. The cheapest and best cotton came from the southern United States.
