What role did the transcontinental railroad play in the development of the u. s. economy in the late 19th century

The railroad established a transcontinental mechanized transportation network that revolutionized the population and economy of the American West. It served as a vital link for trade, commerce and travel that joined the eastern and western halves of late 19th century United States.

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.

1775 is your answer hope this