In California, San Francisco's first street railway begins operation
The San Francisco Market Street Railway Company had been founded by Thomas Hayes in 1857. It laid tracks on city streets during 1859 and in July 1860 opened its first service, running down Market Street and out to Seventeenth Street. It used horse-drawn cars but also steam engines housed in a normal railroad carriage. The track became the nucleus of the Market Street Cable Railway Company in 1873. (By John Osborne)
Edgar M. Kahn, Cable Car Days in San Francisco (Stanford, CA: Stanford University Press, 1940), 9.