Roman historian Ammianus Marcellinus wrote that before the fourth century B.C.E., a Thracian fortified settlement named Eumolpias existed at the site of present - day Plovdiv.
Sejarawan Romawi Ammianus Marcellinus menulis bahwa sebelum abad keempat SM, di lokasi Plovdiv modern ada sebuah permukiman berbenteng orang Trake yang disebut Eumolpias.