Railways made communication easier, this helped spread news. It also made transportation easier.
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He was a german philosopher who lived in the 19th century.
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n the national popular vote, Polk beat Clay by fewer than 40,000 votes, a margin of 1.4%. James G. Birney of the anti-slavery Liberty Party won 2.3% of the vote. As President, Polk completed American annexation of Texas, which was the proximate cause of the Mexican–American War.
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Many Native American tribes suffered high mortality and depopulation, averaging 25–50% of the tribes' members lost to disease.
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It affected the Americans positively long terms, but negatively in the early times of the exchange.
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The Columbian Exchange greatly affected America, bringing destructive diseases that depopulated the Americans but did distribute a wide variety of new crops and livestock throughout the American farm industry. In the long term, this rather increased the human population but still very profoundly affected the Americans.