A pink triangle has been a symbol for the LGBT community, initially intended as a badge of shame, but later reappropriated as a positive symbol of self-identity. In Nazi Germany in the 1930s and 1940s, it began as one of the Nazi concentration camp badges, distinguishing those imprisoned because they had been identified by authorities as gay men or trans women.[1][2] In the 1970s, it was revived as a symbol of protest against homophobia, and has since been adopted by the larger LGBT community as a popular symbol of LGBT pride and the LGBT movements and queer liberation movements.[3][4]