A new analysis shows that three scraps of fabric found in Israeli caves had been dyed indigo, purple and crimson -- the hues of the rich and regal during the Roman era -- using sea snail ink some 2,000 years ago.
A new analysis shows that three scraps of fabric found in Israeli caves had been dyed indigo, purple and crimson -- the hues of the rich and regal during the Roman era -- using sea snail ink some 2,000 years ago.
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