USA HISTORY

Detailed explanation-1: -Beginning in 1863, the Union Pacific, employing more than 8, 000 Irish, German, and Italian immigrants, built west from Omaha, Nebraska; the Central Pacific, whose workforce included over 10, 000 Chinese laborers, built eastward from Sacramento, California.

Detailed explanation-2: -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-3: -Teachers should understand that most of the people who worked to build the transcontinental railroad were immigrants from China and Ireland. These immigrants faced discrimination in the U.S., but their labor made this national achievement possible.

Detailed explanation-4: -Chinese laborers made up a majority of the Central Pacific workforce that built out the transcontinental railroad east from California. The rails they laid eventually met track set down by the Union Pacific, which worked westward.