Join us for a virtual talk as we explore the past, present, and future of indigo dye.

Indigo is one of the most widespread and beloved dyes in history, from the oldest Mesopotamian dye records to modern blue jeans. Due to its unique chemical properties, the hunt for a synthetic indigo spurred intense competition in the late 1800s, the environmental consequences of which continue to confront indigo-dyeing regions today.


This online event is free and no reservations are necessary.

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cooper bleeding bowl from the 1750s
August 22, 2026
Drop-In Tours

Unwell Waters Highlights Tour

Join our museum educators at 11:30am or 2pm as we visit the history of medicine exhibit to learn about waterborne epidemics from Pennsylvania’s past.

August 22, 2026
For Families

Stories of Science: Color and Light

Join us in our museum EVERY SATURDAY for a family-friendly program that highlights strange and surprising stories from the history of science!

August 26, 2026
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Othmer Library Tour

Curious about the other half of the Science History Institute? Step into the Othmer Library of Chemical History!

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