Ibora, a titular see in the Province of Helenopont, suffragan of Amasia. The primitive name of the city was Gaziura, formerly a royal city, mentioned by Strabo as deserted (XII, xv; Dion Cassius, xxxv, 12). In fact a Greek inscription, which dates from the time of Mithridates of Pontus, has been discovered on the rock of the fortress; a subterranean gallery, hewn from the rock, descends to the interior of the mountain, and served perhaps as a secret depository for the royal treasures. Evagrius Ponticus, the famous Origenist ascetic of the fourth century, was a native of Ibora (Sozomen, “Hist. Eccl.”, VI, xxx); situated not far from it was Annesi, the property of St. Basil, who led a religious life on the banks of the river Iris with his friend St. Gregory and his sister Macrina. There is frequent mention in the correspondence of these two saints of Ibora, which, according to Procopius (Historia Arcana, xviii), was destroyed by an earth-quake in the sixth century. Le Quien (Oriens Christ., I, 533) mentions seven bishops of Ibora, from the fourth to the ninth century. The bishopric still existed about the year 1170 under Manuel Comnenus (Parthey, “Hieroclis Synecdemus”, 108). Today Ibora is called Turkhal; it is a caza in the sanjak of Tokat, in the vilayet of Sivas. The village numbers 3000 inhabitants, all Turks. It is surrounded by beautiful gardens and orchards. Nearby is the Lake of Turkhal, three to three and a half miles in circumference.