How did the development of the railways lead to the growth of cities in the west?

The completion of the First Transcontinental Railroad in 1869 had a huge impact on the West. It encouraged further settlement in the West as it made travelling their cheaper and easier. It also encouraged the development of towns along the railroad, as the railroad made the west less isolated.

More than 4 million enslaved hunan beings in the south and they touched every aspect of the regions social, political and economic life.