コーサ・ノストラはいつ結成した？
Based primarily in Sicily, the Sicilian Mafia formed in the 19th century by clans which sprang out of groups of bandits; these groups gained local power and influence. In Sicily, the word "mafia" tends to mean "manly" and a Mafioso considers himself a "Man of Honor." However, the organization is known as "Cosa Nostra"—Our Thing—or Our Affair. The Sicilian Mafia originally engaged in such lower-level activities as extortion, cattle theft and, upon Sicily becoming part of a democratic Italy, election slugging in addition to other kinds of relatively low-level theft and fraud.
19th century