These new chronological elements that have been provided by the archeological researches and investigations let Arbus' settlement be added to ancient Sardinian topography. Indeed, until those findings were made, Arbus was thought to have been founded during the Middle Ages, at least according to the documentation of the time. Indeed the town was not included in the list of the pontifical tithe payments relating to 1341 arguably because, differently from now, the town was actually made up of different separate hamlets such as Santu Domini, Santa Sofia, Bidda Zei, Bidda Erdi, Villa Babari, Funtana Atza, Cilirus in Flumentorgiu, "Villa Jaca" and other minor locations but year after year, also because of the numerous incursions by land and sea carried out by Saracens and Aragonese people, these hamlets' inhabitants eventually ended up living in a single town, which would make for the future town of Arbus.