Copper culture wtf. Ancient metalwork in americas?

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The most conclusive evidence suggests that native copper was utilized to produce a wide variety of tools beginning in the Middle Archaic period circa 4,000 BC. The vast majority of this evidence comes from dense concentrations of Old Copper Culture finds in eastern Wisconsin. Old Copper Culture is a term used for ancient Native North American societies known to have been heavily involved in the utilization of copper for weaponry and tools.

making copper tools is not particularly hard, and with copper being super-abundant there's no reason not to.

>>3136722
this

>The metal would have been found in nature without need for smelting techniques and shaped into the desired form using heat and cold hammering techniques without chemically altering it by alloying it.