About Magazine Podcasts Events
Museum Hours:Wednesday–Saturday, 10am–5pm

Virtual Talk: Indigo

Wednesday, February 19, 2025 | 6pm EST
Science History Institute
315 Chestnut Street
Philadelphia PA 19106
Join Us on Zoom
blue magazine ad for Indigo showing a Sphinx

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

Book cart decorated as a woolly mammoth
March 25, 2026
Free

Othmer Library Tour

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

greyscale image of women drinking tea with caption, "Princess & Fairy, or, The Wonders of Nature
March 28, 2026
Museum Programs & Activities

Drink the Delaware

Join the Science History Institute at Drink the Delaware and explore the science and history of tea!

postcard showing a drawing of Rachel Carson's grave with birds and a squirrel
March 28, 2026
For Families

Stories of Science: Celebrating Women’s History

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

    Republish

    Copy the above HTML to republish this content. We have formatted the material to follow our guidelines, which include our credit requirements. Please review our full list of guidelines for more information. By republishing this content, you agree to our republication requirements.