Which groups of people made up most of the workers on the railroads?

Chinese and Irish Immigrants, and African Americans

deists, human beings can know god only via reason and the observation of nature, but not by revelation or by supernatural manifestations (such as miracles

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.