1867
![San Mateo County History Museum, formerly the San Mateo County Courthouse](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/San_Mateo_County_History_Museum.jpg/100px-San_Mateo_County_History_Museum.jpg)
- Ezra Decoto, an Alameda County landowner, sells land to the railroads, and an eponymous small settlement begins at the location
- Redwood City in San Mateo County is incorporated (historic building pictured)
- Hill Park is established in San Francisco