4 ms·

The PNAS article is out of reach for me, but I found this: http://www.dri.edu/newsroom/news-releases/5657-lead-pollution-greenland-ice http://www.dri.edu/newsr

• abecedarius 8y ago
  The giant spike around the time of Alexander's death is interesting (did they open some big new mine?), along with the relatively elevated level thereafter. It's as if the Hellenistic era and the Pax Romana were almost contiguous, with the crisis of the Roman republic as a passing interruption.
  • CryptoPunk 8y ago
    >>It's as if the Hellenistic era and the Pax Romana were almost contiguous, They are commonly grouped together as phases of classical antiquity.