https://www.criminalbehaviours.com/the-sicilian-mafia-cosa-nostra

- Many people confuse the Italian Mafia with Cosa Nostra, although these two things are connected in many ways, they are not the same.

- The Italian Mafia formed slowly over time in West Sicily just after 1700's, initially they were small gangs of thieves and extortionists.
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- The Cosa Nostra was formed officially in the 1930's during the time of Charles Luciano and the formation of the commision in New York, USA.

- During Luciano's time in America he rose in mafia ranks pretty rapidly, starting out his life of crime as a youngster he was already a well known name in the mafia underworld. Luciano became part of the Masseria Family the most established Italian Mafia family in New York at the time he worked directly under the boss Gieuseppi “Joe the Boss” Masseria. After the death of Salvatore Maranzano another powerful mafia boss, Joe the boss would eventually go on to be executed on April 15, 1931 and Luciano took his place as head of the Masseria family.

With both of the biggest names in American Italian mafia gone Luciano was boss of bosses he called a meeting to put into place the restructure and re-organisation of what is now known today as Cosa Nostra. At that current time the Italian Mafia had structured the American Italian mafia into 5 original New York families Maranzano, Profaci, Mangano, Luciano, and Gagliano families.

During this sit down Luciano proposed that instead of a capo di tutti i capi (boss of all the bosses) that the structure should be more like a company with a board of commissioners that make decisions collectively. Effectively eliminating a boss of all bosses and equalising the vote of the representatives (caporegime) of each family.

- In conclusion although the Italian Mafia and Cosa Nostra (Italian American Mafia) are closely related they are not one in the same and should be thought of as two separate organisations that are connected through history and circumstance. It is true that one would not exist without the other but the way they operate and the obvious move away from Italian traditions are an example that they are to be seen and want to be seen as different from one another.