APS buildings are open to staff and invited visitors. The Library is under renovation until early 2022. We are doing a major upgrade to our technological infrastructure, making some digital collections and services unavailable. If you need immediate assistance with collections, please contact reference@amphilsoc.org.

APS Museum

Jessica Frankenfield
They calculated the size of the solar system, explored distant lands, shed light on the origins of life, unearthed ancient fossils, invented computer technologies, cured...
American Philosophical Society
The American Philosophical Society offices and library will be closed Saturday December 23 through Monday January 1, 2018. The Society will re-open for normal business...
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dmarsh
Curious Revolutionaries: The Peales of Philadelphia showcases the Peale family’s influence on early American popular culture through their pursuits as not only portraitists, but patriots...