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Eli Whitney invented the cotton gin. The Cotton Gin made processing cotton much easer and faster.
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Robert Fulton was responsible for the modernization of the steam boat. He gained a monopoly on the Hudson River as long as they would travel no slower longer than 4mph.
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During the Missouri Crisis this coordinate line was established. Every state above the line would enter the union as a free state, and every state below the line would have the option to enter as a slave state.
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The McCormick Reaper was invented to help speed up harvesting. The Reaper could harvest 12 acres per day.
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John Deere invented the steel plow. This was a turning point in the industrialization of farm equipment.