The California Historical Society collects materials of enduring historical and cultural value in support of its mission to inspire and empower Californians to make the past a meaningful part of their contemporary lives. In our North Baker Research Library, we hold some fifty thousand books and pamphlets, four thousand manuscript collections, half a million photographs, as well as ephemera,…

The California Institute of Technology Archives and Special Collections, founded in 1968, has a mission of facilitating understanding of Caltech’s role in the history of science and technology. Our collections include the papers of Caltech researchers; photographs, film, audio, video, websites, and publications documenting Caltech’s history; scientific instruments characteristic of research at…

The archaeological site material in the museum’s collections dates from approximately 8,000 thousand years ago to the early 1800s. This material includes artifacts from the  indigenous people known as the Tongva who were living on Catalina Island - which they called Pimu - when the Spanish arrived in 1542. Also in the collections are approximately two thousand items dating from the 1880s to the…

Collections include 5,000+ oral histories in 250 projects, representing geographical, ethnic, political, religious, and social communities of selected Orange County, Los Angeles, Southern California, and Western US locales.

The Chinese Historical Society of Southern California was founded in1975 to discover and recognize Chinese American pioneers and the history of Chinese Americans in Southern California. It also works to increase aware-ness of Chinese American heritage through public programs, education, and research. The society's holdings focus on Southern California Chinese American history.