The APS is the nation's oldest learned society, founded by Benjamin Franklin in 1743. The Society promotes useful knowledge in the sciences and humanities through excellence in scholarly research, professional meetings, publications, library resources, and community outreach.

The membership of the APS includes eminent scholars from a wide variety of disciplines. The names and dates of election for members are listed on the APS Members page.

Membership in the APS is entirely honorary and reflects extraordinary accomplishments in all fields of intellectual endeavor. Members are nominated and elected by their peers in the Society.

Eligibility, due dates, and application requirements for the various APS grant and fellowship programs are detailed on the Society's Grants Program web site.

Back issues of many APS publications are available through the APS Publications Program.

Information about visiting the current exhibition in Philosophical Hall can be found on the APS Museum website. In addition to our regular public hours, we welcome inquiries about class visits and special group tours. Contact our museum education staff at 215-701-4421, or by e-mail at jdrozdek [at] amphilsoc [dot] org.

In Library Hall, exhibits drawn from the APS Library collections are open to the public between 9 AM and 5 PM, Monday through Friday. The Library is open to all researchers who demonstrate a need to use the unique resources under its care. Additional information on rules and regulations for research at the Library is available on the Library portion of the web site.

Please visit the Contribute section for more information.