Explore California's history through a vast digital archive of rare materials from libraries, museums, and archives across the state.
Discover unique California archives online
The Online Archive of California is your gateway to exploring rare and historical materials from libraries, museums, and archives all over California. Whether you're a student, historian, or just curious, you can browse a huge collection of documents, photographs, letters, and more—all in one place.
You’ll find easy-to-use search tools and collection guides to help you uncover fascinating stories and primary sources. The site brings together resources from major universities and cultural institutions, making it simple to dive into California's rich history without leaving your home.
With its user-friendly interface and access to diverse collections, OAC is a valuable resource for research, learning, or simply discovering something new about California’s past. If you’re interested in archives or local history, this is a great place to start.
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