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  The Native Americans taught the settlers new ways to plant crops so that they would grow better.
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  Jamestown's main selling point was tobacco and made a lot of money off of the plant.
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  Slaves were a main source of agriculture, by farming and being responsible for most of the work.
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  Tools and equipment were added to make farming easier.
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  Virginia was very successful in agriculture including, corn, wheat, sugar, beef, and more.
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  An act that regulated trade from England and limited exports from other colonies.
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  Taxes raised in whiskey sales angering farmers cause them to rebel which influenced agriculture but in a bad way, raised prices means less people will buy the product
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  More and more land was being sold for more and more expanse on agriculture and homes.
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  With every decade that passed, more and more money was being earned in exporting goods for agriculture. Which greatly benefited support for agriculture.
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  With the beginning of the Civil War comes farmers leaving their farms to fight, which really made a dent in agriculture with less farmers and less food and cotton and other materials.
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  The government allowed and supported more education on farming and technology which allowed more opportunities in Agriculture and more help in what it has in store.
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  The McCormick Reaper was a better tool advancement in agriculture allowing crops to be farmed quickly.