Portal:San Francisco Bay Area/Years/165
1850 
- The San Francisco Bay Area is part of the new state of California, which is admitted into the United States of America
- The City and County of San Francisco is incorporated
- John W. Geary (pictured) becomes the first mayor of San Francisco
- Contra Costa County is incorporated
- Marin County is incorporated
- Napa County is incorporated
- Santa Clara County is incorporated
- San Jose is incorporated in Santa Clara County (First Street, ca. 1868-1885, pictured)
- Solano County is incorporated
- Benicia is incorporated in Solano County (Benicia's State Capitol building from 1853 pictured)
- Sonoma County is incorporated