CASTROGIOVANNI, a town and episcopal see (Arab., Kasr-Yani, corruption of Castrum Ennae), in the province of Cal tanisetta, Sicily, 95m. by rail S.E. of Palermo, and 56m. W. of Catania. It is situated 2,6o5ft. above sea-level in a strong strategic position, almost in the centre of the island, commanding a mag nificent view of the interior. Pop. (1921) 26,415 (town) ; 32,423 (commune). Enna was one of the Sicel cities and the statement that it was colonized by Syracuse in 664 B.C. is improbable. It appears in history under Dionysius I. of Syracuse, who, of ter un successful attempts, finally acquired possession by treachery about 397 B.c. In 134-132 it was the headquarters of the slave revolt, and was reduced only by treachery. Cicero speaks of it as a place of some importance, but in imperial times it seems to have been of little account. It was only by betrayal that the Saracens were able to take it in 859. In 1087 it fell into the hands of the Nor mans; and surviving fortifications are entirely mediaeval. The cathedral (1307) is of some interest. There are no remains of the famous temple of Demeter, from which Verres, as Cicero tells us, removed the bronze statue of the goddess. The lake of Pergusa, where Persephone was carried off by Hades (Pluto, Dis), lies 4m. to the south.