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
Greek colonisation of the Teians. On the eastern shore, which was known in ancient times as Colchis and in which today for the greater part is in Georgia and the autonomous region of Abkhazia, the Greeks founded the cities of Phasis and Dioscouris. The latter was called "Sebastopolis" by the Romans and Byzantines and is known today as Sukhumi—the ruins of the ancient and Byzantine foundations are now found principally below the waterline. The Greek colonies expanded as far as the Iberian Peninsula and North Africa. In North Africa, on the peninsula of Cyrenaica, colonists from Thera founded Cyrene, which evolved into