Of the old Oplontis there is very fragmented news. His name appears for the first time during the Middle Ages in the Tabula Peutingeriana. The site is indicated at six miles from Herculaneum and three from Pompeii and Stabiae, and according to map directions more than a real city, it would be a suburban settlement of nearby Pompeii where there were some holiday villas, farms, Saline and thermal complexes, given the wealth of waters in the area: in fact on the Tabula the resort is represented by the symbol usually used for thermal places, thesis attested also by the remains of buildings used for that function that were found in the area of Torre Annunziata.
The entire area was buried beneath a crust of ash during the eruption of Mount Vesuvius in 79 dC. And a recovery of life will only take many centuries later with the development of the modern city of Torre Annunziata.