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1439 Johannes Gutenerg. it helped reduce costs and it impacted migration by attracting migraters.

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1794 Eli White It helped get beads out of cotton and it helped migration by slaves helping farmers harvest so the farmers could migrate.

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1763 Morucis Claue de Jouffroy made it. It could travel across New York City it only 32 hours. It helped migration by traveling across waterways.

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1976 Cyrus McCormick made it. It helped the economy by saving time when harvesting by doubling the regular time of harvesting without this amazing tool.

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1813 Joseph Glidden Kalb III made it. It helped protect land. And limited freedom by holding in slaves.

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1833 John Lane created it and it helped new farmland grow and get harvested for farmers. It helped migration by it being for efficient for harvesting.

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1908 Henry Ford made it. You could travel faster on land without a horse and it helped migration by driving across land when your tired.