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. Crips: The Crips also known as Original Crip Homies (OCH) are a primarily African-American gang.
i don't know