In 1862, Abraham Lincoln signed an act to build a transcontinental railroad, to be built by two companies, Union Pacific and Central Pacific. The Union Pacific Workers led by Grenville Dodge started in Omaha, Nebraska and headed West. These Workers had problems along the way, including mountain blizzards and scorching desert heat, as well as angry Indians. The workers varied from Civil War Veterans to ex-convicts.
Also helping to build the Railroad was the Central Pacific Workers, headed East from Sacramento, California, and led by Leland Stanford, Charley Crocker, Mark Hopkins, and Collis
P. Huntington. Their workers were mostly Chinese immigrants. The two companies met in Promontory Summit, Utah, where the last spike, made of Gold, was laid, to finish the Transcontinental Railroad.