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Techniques & Tools Liquid Chromatography

The Fabric of Society

Archaeological textiles, as well as having kept our ancient ancestors warm, can tell us much about the society in which they were created; shedding light on the skills, access to plants and even trade developments of a particular period. However, finding specimens is a rarity, as, like our forebears themselves, fabric is subject to the ravages of time, with only exceptional physical conditions preventing decomposition. But according to a new study by Israeli archaeologists (1), the Arava desert boasts exactly such conditions.

Nineteen textile pieces, estimated to be from the 13th–10th centuries BCE, were discovered at a copper smelting site in southern Israel, and samples of five of these were analyzed by researchers at Tel Aviv University. Their aim? “To identify the natural dyes and associated dyeing technologies used in the colored Timna textiles, as a basis for shedding new light on the ancient dyeing industry and the society operating the copper mines at the turn of the 1st millennium BCE” (1).

Microscopic analysis first ascertained that the wool textiles were dyed before being spun into fabric, which, say the authors of the paper, suggests a more sophisticated approach to manufacture. The researchers then radiocarbon-dated the fragments, before using HPLC-DAD to identify the chemical compounds within the red and blue stripes of dye. The two dyestuffs they found – Rubia tinctorum L. (the madder plant) and indigotin (the woad plant) – were not thought to have been used until 1,000 years later – making these fragments the earliest evidence of plant-based dyeing in this region.

The authors believe the remnants paint a picture of a stratified society; the dyeing of the blue fabric in particular was a “complex and comprehensive process of reduction and oxidation that took several days”, making them in all likelihood a luxury item ascribing status to the wearer. And according to the authors, the plants used for dyeing were more likely to have come from Mediterranean regions than in Timna, where they were found, suggesting the existence of long-distance trade within this period.

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  1. N Sukenik et al., “Early evidence (late 2nd millennium BCE) of plant-based dyeing of textiles from Timna, Israel”, PLOS 12 (2017).
About the Author
Joanna Cummings

A former library manager and storyteller, I have wanted to write for magazines since I was six years old, when I used to make my own out of foolscap paper and sellotape and distribute them to my family. Since getting my MSc in Publishing, I’ve worked as a freelance writer and content creator for both digital and print, writing on subjects such as fashion, food, tourism, photography – and the history of Roman toilets. Now I can be found working on The Analytical Scientist, finding the ‘human angle’ to cutting-edge science stories.

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