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.

More events

black and white photo of world's fair display of virus structure model
October 19, 2026
Conferences & Symposia

Artefacts XXXI: Trust and Objects

The 31st annual Artefacts Conference will explore how museums and academic institutions use material culture to build “trust in the history of science.”

Science History Institute Othmer Library
October 21, 2026
Free

Othmer Library Tour

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

page of book with color illustration of a man giving a vaccine to a baby boy
October 24, 2026
Tours

Unwell Waters Highlights Tour

Join our museum educators as we visit the history of medicine exhibit to learn about waterborne epidemics from Pennsylvania’s past.

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