And the wiki article has another reference [0] stating, "The first recorded medical use of copper is found in the Smith Papyrus, one of the oldest books known.

And the wiki article has another reference [0] stating, "The first recorded medical use of copper is found in the Smith Papyrus, one of the oldest books known. The Papyrus is an Egyptian medical text, written between 2600 and 2200 B.C., which records the use of copper to sterilize chest wounds and to sterilize drinking water." [0] https://www.copper.org/publications/newsletters/innovations/2000/06/medicine-chest.html https://www.copper.org/publications/newsletters/innovations/...