Boreum, Cyrenaica Boreum, Cyrenaica Boreum was a city and diocese in Roman Libya. It is now a Roman Catholic titular see. Its modern location is Tabibbi, in southern modern Libya. Boreum was important enough in the Roman province of Libya Superior (Libya Pentapolitana; part of Cyrenaica) to become one of the suffragan sees in this province, which depended directly on the Patriarchate of Alexandria (in Egypt) without a proper Metropolitan, but faded like most bishoprics in Roman Africa. We know of only one ancient bishop, the Arian bishop Senziano, mentioned in 325. In 1933 the diocese was nominally restored as a Latin
Arcadia (ancient region) of the Eurotas river. To the south-west, the border with Messania ran along the tops of Mount Nomia, and Mount Elaeum, and from there the border with Elis ran along the valleys of the Erymanthos and Diagon rivers. Most of the region of Arcardia was mountainous, apart from the plains around Tegea and Megalopolis, and the valleys of the Alpheios and Ladon rivers. The Arcadians were an ancient Greek tribe which was situated in the mountainous Peloponnese. It is considered one of the oldest Greek tribes which settled in Greece and it was probably a relative tribe of the proto-Greeks