When Chicago Gangsters Carried Business Cards

Mental Floss: In the 1970s and 1980s, Chicago street gang members were proud to show off their affiliations—so proud, in fact, that they actually carried business cards. “Street gangs made business cards displaying their symbols, nicknames, territories, and enemies as a means to assert their pride, recruit new members, and serve as general tokens of affiliation,” Brandon Johnson writes in his new book, Thee Almighty & Insane, a photographic collection of these historic “compliment cards."