Britannica: Central Pacific RailroadThe Central Pacific began laying track eastward from Sacramento, California, in 1863, and the Union Pacific started westward from Omaha, Nebraska, two years later. To meet its manpower needs, the Central Pacific hired thousands of Chinese labourers, including many recruited from farms in Canton.
Central Pacific Railroad 2016. Britannica School. Retrieved 17 November 2016, from http://school.eb.com.au/levels/high/article/22083
