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KUOW Public Radio
kuow.org
did:plc:sgpikk2uv7446555gx2mawpz
The pigment “Egyptian Blue” was invented about 5,000 years ago. It’s the world’s oldest known synthetic pigment. But it was lost to time, until recently.
https://www.kuow.org/stories/egyptian-blue-mystery-solved-washington-state-university
2025-06-04T21:24:15.848Z