Sardinia world (22 centenarians/100,000 inhabitants). Sardinia is the first discovered Blue Zone, a demographic and/or geographic area in the world with an oversize concentration of centenarians and supercentenarians. In 2016 there were 50,346 foreign national residents, forming 3% of the total Sardinian population. The most represented nationalities were: Sardinia's most populated cities are Cagliari and Sassari. The Metropolitan City of Cagliari has 431,302 inhabitants, or about ¼ of the population of the entire island. Eurostat has identified in Sardinia two Functional Urban Areas: Cagliari, with 477,000 inhabitants, and Sassari, with 222,000 inhabitants. Sardinia is one of the five Italian autonomous regions,
History of the Jews in Sardinia History of the Jews in Sardinia The history of the Jews in Sardinia can be traced over two millennia. Sardinia (; , ; ) is an island southwest of Italy and south of the French island of Corsica. Its coordinates are between 8° 4′ and 9° 49′ E. longitude, and between 38° 55′ and 41° 16′ N. latitude. The modest Jewish community in Sardinia consisted of Sephardic Jews of Spanish and Italian descent. The first recorded mention of Jews in Sardinia occurred in the year 19, during the reign of Roman emperor Tiberius. 4000 Jews were exiled from Rome to