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Asa Whitney presented the plan of building the railroad from Mississippi River to the Pacific Coast.
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The settlement of the Oregon Boundary
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The aquisition of Western territories from Mexico
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The discovery of gold
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Congress appropriated funds to survey proposed routes.
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Senator Stephen Doulgas intrudeced this act with intentions to win approval for a line from Chicago
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Republican-controlled congress enacted legislation which provided contruction for the transcontinental rail line.
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The Union Pacific R.R. began with construction in Omaha, Nebraska and the Centeral Pacific started in Sacramento, California.
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Both the Union and Centeral Pacific lines met a Promontory Summit, Utah.
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Three additional lines were added and finished. Northern Pacific went from Lake Superior to Portland, Oregon. The Santa Fe started at Atchison, Kansas and ended in Los Angeles. The Southerrn Pacific went from LA to New Orleans.
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The great northern was completed as a fifth line