Imagine an unknown city. One day it’s there, and the next it’s buried under volcanic ash for 2,000 years until someone discoveres it again. Such was the story of the Roman city of Pompeii, the city...

For over two thousand years, Pompeii has been a site of ashy ruins because of the inevitable eruption of Mt. Vesuvius. Another tragedy has befallen this ancient city: another event that most experts say...