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17,000-year-old furnace in North China sheds light on ancient fire technology_蜘蛛资讯网

stone blade and micro-blade tools, the appearance and craft of early ornaments, the process of heat-treating stone, and the innovative ways in which ancient people used fire.The findings are also vit

eads were made from shells, snail shells, ostrich eggshells, and tiny bone tubes. Archaeologists even found semi-finished beads in different stages of processing, providing a systematic look at the ma

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