Encyclopaedia or A Dictionary of Arts, Sciences, Miscellaneous Literature, circa 1798. Image courtesy of the Historical Society of Pennsylvania.
Monday, February 1, 2027, 2:00 pm EST
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Thursday, October 22, 2026, 10:00 am EDT
Wednesday, October 21, 2026, 6:00 pm EDT
College of Physicians of Philadelphia
Wednesday, October 21, 2026, 3:00 pm EDT
American Philosophical Society
Wednesday, October 21, 2026, 12:00 pm EDT
University of Manchester
Wednesday, October 21, 2026, 12:00 pm EDT
Wednesday, October 21, 2026, 8:00 am EDT
Tuesday, October 20, 2026, 2:00 pm EDT
Monday, October 19, 2026, 3:30 pm EDT
University of Pennsylvania
Monday, October 19, 2026, 9:00 am EDT
Science History Institute
Friday, October 16, 2026, 1:30 pm EDT
Harvard University
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