Tyrian Purple, or royal purple, imperial purple or imperial dye — a purple-red dye made from the mucus of one of several species of Murex snail — was first produced by the Phoenicians in the city of Tyre (now Lebanon) for use as a fabric dye around 1200 BCE. It's production was continued by the Greeks and Romans until the fall of Constantinople in 1453.
The pigment was expensive and complex to produce, and items colored with it became associated with power and wealth. The Greek historian Theopompus, writing in the 4th century BCE, reported that "purple for dyes fetched its weight in silver at Colophon [in Asia Minor]."
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