Helpful Links

The internet sites listed below are maintained by organizations outside the California State Library. These sites can be convenient sources of information that supplement the main collections of the State Library and further its mission to serve the information needs of all California citizens. In determining whether a website should be included as a link, we consider the following factors: availability of free and current content, accuracy, authority, unique information offerings, clarity, unbiased writing, and representation of many / multiple areas of interest. The California State Library bears no responsibility for the accuracy or the content of external sites. Please contact the external site’s administrator for any questions regarding these sites.

By Culture or Region

Small selection of state-specific sites with digital content. Be sure to explore the subject, region, and general search links as well.

United States


By Subject or Type

18th Century

American Revolution

19th Century

War of 1812
Mexican American War
Civil War
Spanish-American War

20th Century

Spanish Civil War