The Science History Institute is closed for Independence Day on Friday, July 4, and there will be no First Friday event.

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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blue armchairs, shelves, columns in library
July 2, 2025
Free

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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July 2, 2025
For Families

Red, White, & Blue To-Do

Join us for an exciting day of revolutionary science and the history of fireworks!

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July 4, 2025
First Fridays

There Will Be No First Friday Event in July

Have a safe and happy 4th of July weekend!

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