San Francisco History - Timeline - Chronicles events from 3000 B.C. to 2000 A.D. - http://www.sfgenealogy.com/sf/history/hgtim1.htm
Chinatown History - Historical timeline for San Francisco Chinatown. - http://www.sanfranciscochinatown.com/history/
The Cable Car Home Page - Anniversaries - A San Francisco timeline with an emphasis on Cable Car history. - http://www.cable-car-guy.com/html/ccmain.html#2004