ALAMEDA TERMINAL OF THE FIRST TRANSCONTINENTAL RAILROAD
With the Pacific Railroad Act of 1862 authorizing construction of a railroad and telegraph line, the first concentration of activity was east of Sacramento. Subsequently the line was opened from Sacramento to San Jose. During June 1869 construction was started near Niles, and by August a temporary connection had been made at San Leandro with the San Francisco and Alameda Railroad. On September 6, 1869, the first Central Pacific train reached San Francisco Bay at Alameda.