How did railroad expansion impact sectionalism?

Railroad expansion expanded other regions which was also involved sectionalism. The regions were involved with one another even though they didn't want to be involved with one another. The railroads united them to bring in trade which brought in economy income.

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in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.