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Asa Whitney
Asa Whitney presented to congress a plan for the federal government to subsidize the building of the railroad from the Mississippi river to the Pacific -
Oregon boundary
the settlement Oregon boundary -
Mexico
The acquistion of western territores from mexico -
Discovery of gold
the discovery of gold in California -
Congress
Congress appropriated funds to survey various proposed routes -
Kansas-Nebraska act
Senator Stephen Douglas introduced his Kansas-Nebraska act intended to win approval for a line from Chicago -
Republican control
Congress enacted legislation providing for constuction of a transcontinental line -
Two lines meet
the two linesmet at Promontroy Summit, uath, a golden spike joined the two railroads thus completing the frist constuction raildroad