where was copper first found
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where was copper first found
how was copper found
how was copper first discovered
where did copper come from
where was the element copper discovered
what country was copper discovered
where does copper originate from
date copper was discovered
what year was copper discovered
when was copper discovered date
who first discovered copper
the history of copper
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where was copper first found, how was copper found, how was copper first discovered, where did copper come from, where was the element copper discovered, what country was copper discovered, where does copper originate from, date copper was discovered, what year was copper discovered, when was copper discovered date, who first discovered copper, the history of copper, when was copper created, what is copper origin