WORLD HISTORY

Detailed explanation-1: -The major groups of immigrants that worked on the transcontinental railroad were from Ireland and China.

Detailed explanation-2: -Most of the early workers were Irish immigrants. Railroad work was hard, and management was chaotic, leading to a high attrition rate.

Detailed explanation-3: -The building of the Transcontinental Railroad relied on the labor of thousands of migrant workers, including Chinese, Irish, and Mormons workers. On the western portion, about 90% of the backbreaking work was done by Chinese migrants.

Detailed explanation-4: -The rail line, also called the Great Transcontinental Railroad and later the “Overland Route, ‘’ was predominantly built by the Central Pacific Railroad Company of California (CPRR) and Union Pacific (with some contribution by the Western Pacific Railroad Company) over public lands provided by extensive US land grants.

Detailed explanation-5: -Chinese immigrants work on the transcontinental railroad. As many as 15, 000 Chinese immigrants helped build the railroad. Irish track layers involved in the construction of the transcontinental railroad.

Detailed explanation-6: -Chinese workers were an essential part of building the Central Pacific Railroad (CPRR), the western section of the first transcontinental railroad across the United States.