The Red inverted triangle was the badge that political prisoners in Nazi concentration camps had to wear. The Nazis chose red because the first people to have to wear it were Communists. Besides Communists, liberals, anarchists, Social Democrats, Freemasons, and other opposition party members also wore a red triangle. Many red triangle wearers were interned at Dachau concentration camp.
See also
- Identification in Nazi camps
The original article can be found at Red inverted triangle and the edit history here.