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Asa Whitney presented to congress a plan to expand the rails the other side of the country.
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The settlement of the Oregon boundary took place
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The acquisition of the western territories took place
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Created the territories of Kansas and Nebraska, opening new lands for settlement
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The construction began of the transcontential rail line
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The territory colorado became a state
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In Promontory Utah two railroads met and the last piece was put into place by Leland Stanford
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The rails were offically finished
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Territories became offical states
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Became states
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A fifth line was created which was done and known by the great northern
