For discovery.. (though not 'scientific').. Try 1500-2000 BC https://www.copper.org/publications/newsletters/innovations/2000/06/medicine-chest.html https://ww

For discovery.. (though not 'scientific').. Try 1500-2000 BC https://www.copper.org/publications/newsletters/innovations/2000/06/medicine-chest.html https://www.copper.org/publications/newsletters/innovations/...