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Re:All Applications for Nuclear Energy at COP26 Rejected by adrianN on Sunday October 31, 2021 @05:39AM (#29055754)
It is very easy to look up the history of coal use and see that it had metallurgical applications in antiquity: https://en.wikipedia.org/wiki/Coal#History
Re:All Applications for Nuclear Energy at COP26 Rejected by randomswede on Thursday November 04, 2021 @10:59AM (#29108020)
A lot of the coal used in Swedish metal-working (up to relatively late, but I don't actually have dates, here, gut feel is 18050s) was charcoal, rather than mined coal. With quite advanced cooperatives[1] producing the charcoal for the mining/refining cooperatives[1].

[1] Somewhat loose translation of "kolare" and "bergslag", here.