USA HISTORY

Detailed explanation-1: -On May 10, 1869, in a ceremony at Promontory, Utah, the last rails were laid and the last spike driven. Congress eventually authorized 4 transcontinental railroads and granted 174 million acres of public lands for rights-of-way.

Detailed explanation-2: -Transcontinental railroad completed, unifying United States On May 10, 1869, the presidents of the Union Pacific and Central Pacific railroads meet in Promontory, Utah, and drive a ceremonial last spike into a rail line that connects their railroads.

Detailed explanation-3: -The completion of the First Transcontinental Railroad in 1869 had a huge impact on the West. It encouraged further settlement in the West as it made travelling their cheaper and easier. It also encouraged the development of towns along the railroad, as the railroad made the west less isolated.

Detailed explanation-4: -The Big Four Four northern California businessmen formed the Central Pacific Railroad: Leland Stanford, (1824–1893), President; Collis Potter Huntington, (1821–1900), Vice President; Mark Hopkins, (1813–1878), Treasurer; Charles Crocker, (1822–1888), Construction Supervisor.