Othmer Library After Hours
It’s National Library Week!
This year, we’re celebrating America’s Semiquincentennial with the theme “A Blast Through the Past: 250 Years of American Science.”
Explore the scientists, ideas, and technologies that have shaped our world from 1776 to today through our unique collections.
See rare and modern treasures, support the library by adopting a collection item, enjoy our annual book-themed cake, and take home a souvenir!
Admission is free; registration is required.

Featured image at top: Page 8, Famous Names in Chemical History: Joseph Priestley (1938).
More events
Stories of Science: We ❤︎ Chemistry!
Join us in our museum EVERY SATURDAY for a family-friendly program that highlights strange and surprising stories from the history of science!
Philadelphia: Workshop of the World
Join us for March First Friday as we unveil Philadelphia: Workshop of the World, the latest exhibition from our A Closer Read series.
Othmer Library Tour
Curious about the other half of the Science History Institute? Step into the Othmer Library of Chemical History!
