Gang graffiti started back in the 1960s due to the rivalry between the Bloods and gang in Los Angeles, California in what year?
Gang graffiti: Gang graffiti is the act of spray painting on walls in certain areas to represent your gang. Gang graffiti:  Gang graffiti started back in the 1960s due to the rivalry between the Bloods and the Crips and Sureños and Norteños, and continued on until the 1992 Los Angeles riots.
i don't know