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In the 1800's, the population was around one billion people (Beck).
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Through the years, the industry has made its turning point in America (Oliver).
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Any war that happened in the United States of America came very close to destroying the economy. Both World Wars, any of the civil wars, and any other ear that happened (Green)
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In the 1800's, the population was around one billion people. Now the population is about seven billion people (Beck).