The Central Pacific Railroad connected California and Utah since the 1860s decade. It was constructed as the Western branch of the "First Transcontinental Railroad" located in North America.
<u>Chinese immigrants were a crucial labor source during the construction of the railroad.</u> More and more Chinese men continued arriving and were hired even tough the working conditions were extremely harsh and they received less compensation that their white counterparts.
There could be a big effect, source one is the better because it explains the patients symptoms and problem and how it happened. People may not want to work at that place any more, or they would start a riot
