 Lucky Luciano, who would become a prominent boss within the Italian-American Mafia and organize New York's Five Families, once claimed that Arnold Rothstein "taught me how to dress".The stereotypical attire of the American mobster portrayed in movies can partially trace its roots directly to Rothstein.During prohibition, Jewish gangsters became major operatives in the American underworld and played prominent roles in the distribution of illegal alcohol and the spread of organized crime throughout the United States.