"the Sacred Way" or "the way of the Gods": the Japanese state religion; among its doctrines are the divinity of the emperor and the sacredness
the Japanese nation *

The answer should be Shintoism

Explanation:

the american rail road was the most influential and useful transportation system developed in the 1800's with steam locomotives and in the very late 1800's and early 1900's diesel electric locomotives being used to transport goods and people around the newly expanded united states!