SrTobi t1_jedsfj8 wrote
Wait? We developed copper working before the wheel? Crazy
fatwiggywiggles t1_jef7uls wrote
It was just kinda lying around Lake Superior, not much digging or smelting required to get ahold of 99% pure copper
https://en.wikipedia.org/wiki/Old_Copper_complex
There's still a bunch of copper mines in the UP of Michigan
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