aug 28, 1539 - Ardabil Carpet
The pile of the carpet is made from wool, rather than silk because it holds dye better. The knot-count of a carpet still directly impacts the value of carpets today; the more knots per square centimeter, the more detailed and elaborate the patterns can be. The dyes used to color the carpet are natural and include pomegranate rind and indigo. Up to ten weavers could have worked on the carpet at any given time. The Ardabil carpet has 340 knots per square inch (5300 knots per ten centimeters square).
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