The oldest traces of blue indigo on 34,000-year-old grinding tools from Georgia, Caucasus: new scenarios for the use of plants in the Palaeolithic
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Greek island of Aegina was home to a Bronze Age purple dye workshop; tools, ceramics, and snail shells provide details of Mycenaean dye production in 16th century BC
Even thousands of years ago people wore clothing with colourful patterns made from plant and animal-based dyes
