A stone wall built by the Roman army as a defense against slave revolt leader and gladiator Spartacus and his men has been identified by archaeologists in an Italian forest. Local environmentalists who found the wall alerted archaeologists, who have now been able to provide greater insight using advanced radar and laser scanning methods, as well as soil sample analysis. The ditch and mound (or fossa and agger, respectively) was a common Roman defense system. This stone wall and earthwork, for instance, stretches nearly two miles through the Dossone della Melia forest in Italy’s Calabria region. A deep ditch once...