Huffington Post

In the nearly century and a half since San Francisco’s first cable car completed its inaugural run down Clay Street, the city’s public transit system has become as embedded in San Francisco’s very fabric as sourdough bread, the Golden Gate Bridge or the omnipresent blanket of fog.

http://www.huffingtonpost.com/2013/05/15/san-francisco-transit-history_n_3280949.html?ir=San+FranciscoRead more...