USA HISTORY

Detailed explanation-1: -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-2: -The story goes that on May 10, 1869, the Central Pacific Railroad’s tracks from the west were connected to the Union Pacific Railroad’s tracks from the east in Promontory Summit, Utah.

Detailed explanation-3: -The Railroad Act of 1862 put government support behind the transcontinental railroad and helped create the Union Pacific Railroad, which subsequently joined with the Central Pacific at Promontory, Utah, on May 10, 1869, and signaled the linking of the continent.

Detailed explanation-4: -From May-December 1869, Promontory was the terminus of the transcontinental railroad (the junction point for Central Pacific and Union Pacific Railroads).