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 the Jews became increasingly harsh. During those times, mob violence against the Jews was recorded. Sardinia is one of the few places in Italy where there are catacombs containing Jewish inscriptions. The catacombs of Sant'Antioco date from the 4th and 5th centuries. The inscriptions are in a form of Hebrew-Latin, a language closely related to Italki. In 1325, Sardinia fell under the rule of the Spanish Kingdom of Aragon. For the first century during Spanish rule, life was more or less pleasant for Sardinian Jews. During this time Spanish Jews began to arrive and settle the island. The Jewish inhabitants