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|tựa đề= trống hay bị thiếu (trợ giúp) Quote: "One of the funerary chambers, dating to around 5500 BC, had contained an adult male lying on his side with legs flexed backward and a young child, approximately one or two years old, at his feet. Next to the adult's left wrist were eight copper beads which had once formed a bracelet. As such metal beads were only found in one other Neolithic burial at Mehrgarh, he must have been an extraordinarily wealthy and important person. Microscopic analysis showed that each bead had been made by beating and heating copper ore into a thin sheet which had then been rolled around a narrow rod. Substantial corrosion prevented a detailed technological study of the beads; yet this turned out to be a blessing as the corrosion had led to the preservation of something quite remarkable inside one of the beads — a piece of cotton.... After further microscopic study, the fibres were unquestionably identified as cotton; it was, in fact, a bundle of both unripe and ripe fibres that had been wound together to make a thread, these being differentiated by the thickness of their cell walls. As such, this copper bead contained the earliest known use of cotton in the world by at least a thousand years. The next earliest was also found at Mehrgarh: a collection of cotton seeds discovered amidst charred wheat and barley grains outside one of its mud-brick rooms."|doi-access= (trợ giúp) Quote: "Gossypium arboreum is a diploid species cultivated in the Old World. It was first domesticated near the Indus Valley before 6000 BC (Moulherat et al. 2002)."|df= (trợ giúp)|url-access= (trợ giúp) Bảo trì CS1: Văn bản dư (link)|df= (trợ giúp)|df= (trợ giúp)Thực đơn
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