One of the most dangerous and wide spread gangs in the U.S., the Crips (a.k.a C's,blues,crabs), was founded on a June 6 by Stanley "Tookie" Williams.

Every June 6th all members of the Crip gang get together and "flag" (a.k.a cause trouble,gangbang, etc). Any person wearing the color red this day (color of their rival gang the Bloods) will most likely get beat up.