The Romans, who penetrated the region in the fourth century B.C.E., called the city Barium and made it a municipium, that is, a settlement that was inhabited by Roman citizens and that retained its own administrative independence.
Romawi, yang memasuki daerah itu pada abad keempat SM, menamai kota itu Barium dan menjadikannya suatu municipium, maksudnya, sebuah permukiman yang dihuni warga Romawi dan memiliki otonomi.