Today's area of Zenica had its peak in the first six centuries of the new era, when in parts of today's Zenica – aside from Bistua Vetus (the barbarians' village in Rama) and Delminium (Duvanjsko Field) – one of the three most important municipiums and centers of Christian dioceses in Bosnia has been found: Bistua Nuova – seat of the Bistuenska diocese, the seat of Roman Christianity in the Bosnian area prior to the Slavs' arrival. Information that Bistua Nuova's bishop Andrew (Andreas, Andrija) took part in and was a signer of Solin sinodas in 530 and 533 underlines its importance. Ancient tombstone monuments are from ancient Bistua Nuova, as well as remains of old Christian basilica etc. In the urban settlement of Odmut, and rural settlements of Putovići and Tišina, archaeologists found various findings; epigraphs stand out by their importance, which guided them towards the conclusion that Bistua Nuova was in the Zenica area. It is not excluded that Bistua Nuova was right at the place of today's Zenica, and/or was just named municipium Bistua Nuova. Anyway, the Zenica region was known settlement at this point in the history, as numerous proofs of Roman-era Zenica exist.