Also known as Copper Age, Eneolithic, Æneolithic, Copper age
銅器が使われた時代
The Chalcolithic, also known as the Copper Age, was a period in human history when people began smelting and using copper while still relying mainly on stone tools, fitting between the Neolithic and Bronze Age. This period happened at different times in different parts of the world and was skipped entirely in some regions like Russia, making it an important marker of how different societies adopted metalworking at their own pace.
AI-generated from the Wikipedia summary — may contain errors.
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銅器時代(どうきじだい)は、石器の使用に併行して金属器が使用された、人類文化の発展段階を指す用語である。金石併用時代、純銅器時代とも呼ばれる。青銅器時代に先行し、錫を含まない自然銅を鍛造成形して使用した段階である。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).