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
Byzantine Greeks as "Rhōmaîoi" (, "Romans", meaning citizens of the Roman Empire), a term which in the Greek language had become synonymous with Christian Greeks. The Latinizing term "Graikoí" (Γραικοί, "Greeks") was also used, though its use was less common, and nonexistent in official Byzantine political correspondence, prior to the Fourth Crusade of 1204. While this Latin term for the ancient "Hellenes" could be used neutrally, its use by Westerners from the 9th century onwards in order to challenge Byzantine claims to ancient Roman heritage rendered it a derogatory exonym for the Byzantines who barely used it, mostly in contexts relating to