Visit the Museum

The APS Museum is open April 10, 2026 – January 3, 2027 with its new exhibition, These Truths: The Declarations of Independence.

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On view now: These Truths: The Declarations of Independence. Explore how Americans used and reproduced the document during the first 50 years of its history. At first it served as a pronouncement of news, later a political tool, and then transformed into a national symbol. Learn more and make a plan to visit.

In 2001, the APS opened its Museum gallery in Philosophical Hall, the Society’s home since 1789. The Museum changes annually to highlight a different themed collection of objects from the Society’s Library. Previous exhibitions have featured items such as Thomas Jefferson’s hand-written draft of the Declaration of Independence, a notebook from Lewis and Clark’s Western exploration, a rare 18th-century telescope, Darwin’s hand-written title page for On the Origin of Species, Neil Armstrong’s annotated notes of the Apollo 11 mission, and the only known portrait of Benjamin Franklin’s wife, Deborah.

Each exhibition offers imaginative programs that interpret the historical themes and objects on view, encouraging visitors to make connections between history and present day. Check out our upcoming events and education resources for more information.

The American Philosophical Society, the oldest learned society in the United States, was founded in 1743 by Benjamin Franklin for the purpose of “promoting useful knowledge.” After almost three hundred years of knowledge sharing, the Society’s collections have grown to include 2.5 miles of manuscript pages and approximately one million rare books, prints, photographs, paintings, scientific instruments, Native American language recordings, and other objects.