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Did you know?

Sometime around 2,200 B.C., the Egyptians created the first synthetic pigment, known today as Egyptian blue. It was produced from a combination of lime, silica, copper and an alkali. It glows under infrared and fluorescent lights, which helps us identify the color even when it is not visible.

Picture Egyptian Blue – The Story of the First Synthetic Pigment

Walters Art Museum/Wikipedia

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