Gangi, Sicily scheme has proved a great success. Gangi is also a common Sicilian last name. Mario Siragusa, "La storia di Gangi", Bompietro-Locati, 2017: ; wiew:www.comitatoenginomadonita.altervista.org/CREM/ Gangi, Sicily Gangi is a "comune" (municipality) in the Metropolitan City of Palermo in the Italian region Sicily, located about southeast of Palermo. Gangi borders the following municipalities: Alimena, Blufi, Bompietro, Calascibetta, Enna, Geraci Siculo, Nicosia, Petralia Soprana, Sperlinga. The town straddles the Madonie mountains of central Sicily. Gangi's origins have been connected to the ancient Greek city of "Engyon", or "Herbita", but this theory remains unconfirmed. Traces of Roman presence are instead testified by archaeological
Emirate of Sicily of the multi-ethnic County and subsequent Kingdom of Sicily, until those who had not already converted were expelled in the 1240s. Until the late 12th century, and probably as late as the 1220s, Muslims formed a substantial portion of the island's population. Their influence remains in some elements of the Sicilian language, as well as surnames and locations. In 535, Emperor Justinian I returned Sicily to the Roman Empire, now ruled from Constantinople exclusively. As the power of what is now known as the Byzantine Empire waned in the West, Sicily was conquered by the Rashidun Caliphate during the reign