<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> The crime families originated out of New York City Sicilian Mafia gangs . Salvatore Maranzano formally organized them in the summer of 1931, after the April 15 murder of Giuseppe Masseria, in what has become known as the Castellammarese War . Maranzano introduced the now - familiar Mafia hierarchy: boss (capofamiglia), underboss (sotto capo), advisor (consigliere), captain (caporegime), soldier (soldato), and associate; and declared himself capo di tutti capi (boss of all bosses). </P> <P> By declaring himself boss of all bosses, Maranzano was breaking the deal he had made with Lucky Luciano in which the gangsters agreed that they would be equals, in exchange for Luciano agreeing to help murder Masseria . For reneging, Maranzano was murdered on September 10, 1931, on Luciano's orders . The boss of all bosses position was then eliminated in favor of The Commission . The Commission would consist of the head of each of the Five Families, plus the heads of the Buffalo crime family and the Chicago Outfit . The council would serve as the governing body of the American Mafia, settling disputes, including demarcating territory among the previously warring factions and would govern all activities in the United States and Canada . </P> <P> By 1963, when they were publicly disclosed in the Valachi hearings, the family names had changed and were based on their bosses at the time, Joseph Bonanno, Carlo Gambino, Vito Genovese, Tommy Lucchese and Joseph Profaci . Other than the Profaci family, which was renamed the Colombo family, the names have remained unchanged . </P>

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