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Enna (ān´nä), town (1991 pop. 28,273), capital of Enna prov., central Sicily, Italy. It is an agricultural market, resort, and sulfur-mining center. In ancient times Enna was devoted to the cult of Ceres. It was taken by Syracuse (396 BC) and by Rome (258 BC) and played a major part in the Sicilian slave rebellion that occurred from 135 BC to 132 BC The town was later captured by the Arabs (9th cent.) and then by the Normans (11th cent.). An imposing citadel (14th cent.) dominates Enna. Until 1927 the town was called Castrogiovanni.

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