I've read a paper from some years ago, that shows evidence of how the natives of Wisconsin casted copper to make some tools.
A Metallographic Analysis of the Old Copper Osceola, Wisconsin Site : 1900 to 1200 B.C.E. on JSTOR
Is there any evidence to refute this analysis? If they actually did it, how old are the copper tools that were casted? I mean, the site is supposed to be old, however each tool has its own dating, yet the arcticle doesn't mention these specific datings.
Greetings haha. A link here https://docdro.id/SQ5B74V
The short answer is no. Native North Americans north of Mexico for the most part cold-hammered copper. Recent publications (see below) document heating and hammering of copper at Cahokia during the Mississippian Period. [This] (https://www.reddit.com/r/AskHistorians/comments/1l30m0/what_methods_did_the_precolumbian_american/) post from our FAQs provides a lot of good information as does [this one] (https://www.reddit.com/r/AskHistorians/comments/256w3b/is_there_any_reason_why_the_native_american/chebtp5/). See entries by u/Reedstilt and u/400-Rabbits. But if anyone has any new information or discussion, I'm sure it will be welcome.