What were two reasons for building the transcontinental railroad?

What were two reasons for building the transcontinental railroad?
What incentives did the us congress provide to the railroad companies?
How did native American tribes react to the coming of the railroad?
What were three obstacles facing the railroad builders?

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What rises were faced by Chinese works in the central pacific railroad?
How did the railroad impact different social groups in the west?
What were two reasons women pushed for voting rights in Utah?
How did the homestead act promote new settlement?

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