Maya because of the time the tribes, and revolutionizing Into the Aztecs
Answer:
The definition of a civil war is a war between citizens of the same country. When the Northern States and Southern States in the U.S. fought over slavery, this was an example of a civil war.
Explanation:
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One of the main ways in which changes to the railroad helped American industries to grow is that the expansion of the rail system led to increased migration to the west, which led to more farming and agricultural output. Another would be that it led to settlements that ultimately led to business that were able to conduct business over state lines with great ease.
