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Textile mills was invented by Samuel Slater. The significance of textile mills was it turned cotton from the South into manufactured cloth.
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John Fitch made the first successful trial of a 45-foot (14-meter). The era of the steamboat began in Philadelphia in 1787
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Interchangeable parts were invented by Eli Whitney. The significance of interchangeable parts was that parts of products could be replaced instead of the whole product.
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The Cotton Gin was invented by Eli Whitney. The significance of the cotton gin was it allowed cotton to be processed 50 times faster.
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The National Road was the first major improved highway in the United States built by the federal government. The road connected the Potomac and Ohio Rivers and was a main transport path to the West for thousands of settlers.
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Originally, it ran about 363 miles (584 km) from Albany, on the Hudson River, to Buffalo, at Lake Erie. The Erie Canal allowed a faster mode of transportation.
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The mechanical reaper was invented by Cyrus McCormick. The significance of the mechanical reaper was it allowed farmers to harvest larger pieces of land.
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The steel plow was invented by John Deer. The significance of the steel plow was the farmers could plow larger pieces of land.
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The sewing machine was invented by Elias Howe. The significance of the sewing machine was that it helped turn manufactured cotton into clothing.
