Seems like the bronze trade was pretty central to the steppe; between the Indo-Europeans having access to a massive copper mine and it being pretty central to the Finnic speakers sweeping west
Dan Davis
Dan Davis28.7. klo 02.20
The largest copper mine of the prehistoric world was in Kargaly south of the Urals. Between c. 1900 - 1300 BC, they dug a staggering network of interlinked tunnels extending for hundreds of kilometres, and extracting up to 150,000 tons of copper.
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