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1 gen 3000 anni a. C. - Первые ученые и ремесленники, преднамеренно ставшие изучать химические свойства веществ.

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химик-технолог

ByМихаил Фефелов

2 dic 2018

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449

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1 gen 3000 anni a. C.

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~ 5029 years ago

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