Metal is essential in our world but how did early humans noticed that that shiny “rock” is usefull
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Humans found natural metals like copper lying about and learned how to shape it. As the amount of easily workable copper became harder to find, humans figured out they could heat up rocks with small amounts of copper in them to get the copper out. In the process other metals would melt to and mix in, sometimes resulting in “better” metal. Because metal became so important to society, humans figured this out and learned how to create alloys intentionally.
In the Americas copper was more common and there was les competition for it. It’s been theorized the lack of competition for metal is why the native Americans never figured out smelting.
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