California Institute of Technology
Welcome to the Caltech Archives


The Caltech Archives
was formally established in 1968 to serve as the collective memory of the California Institute of Technology. Our mission is to preserve and make accessible the institutional records, personal papers, documents, artifacts and pictorial materials that tell the school's history.

The Archives' unique research collections in the history of science and technology range from the time of Copernicus to today. They are available to the campus community for instructional and research purposes, as well as to qualified non-campus users by appointment.

The Nobel Physicists at Caltech -a Long History
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Images above are from the Caltech Image Archive, an online, searchable database of thousands of images.



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The Archives Reading Room and the Becoming Caltech exhibition are both CLOSED.
For research assistance please contact archives[at]

Information about the planned opening of the exhibition can be found here.


In the News

Contribute a COVID-19 experience

The Caltech Archives is collecting the experiences of the Caltech community on campus, at home, and elsewhere during this unprecedented time. Your contributions will document how the COVID-19 pandemic has affected our community. Learn more.

Now online 4 new oral histories

Our interviews with physicists Stanley E. Whitcomb and William Ralph Smythe, chemist Joseph B. Koepfli and administrator and English lecturer L. Winchester Jones are now online.

Read the new oral history with Marshall H. Cohen

Caltech Professor of Astronomy, emeritus, gives a firsthand overview of his life and career here.

image In The News archive



Talk of the Archives

Becoming Caltech, 1910-1930


A century ago, a small institution called Throop Polytechnic Institute dramatically reinvented itself, transforming from a manual arts academy to an engineering school, then expanding into a research institute. In 1920, it became the California Institute of Technology. Join us on Zoom for a series of presentations by Caltech archivists on the science, engineering, architecture, and community life of early Caltech.

Registration and additional information here.


image previous "Talk of the Archives"

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