Though not for anything progressive, the acronym Mafia is a global household name. By the 19th century in Sicily, Italy, and in the USA, the Mafia had become an assortment of violent criminal gangs that not only terrorised law abiding citizens (especially those who indulged in retail and real estate businesses), but government officials and law enforcement officers as well.
The gangs organised themselves and operated in small clans that always sought to undermine each other in their quest for supremacy. The gangs survived on covert extortion, heists, prostitution and drug peddling on a massive scale.