Pink triangle and the LGBT rights movement. In Nazi concentration camps, each prisoner was required to wear a downward-pointing, equilateral triangular cloth badge on their chest, the color of which identified the reason for their imprisonment. Early on, homosexual male prisoners were variously identified with a green triangle (indicating criminals) or red triangle (political prisoners), the number "175" (referring to Paragraph 175, the section of the German penal code criminalizing homosexual activity), or the letter "A" (which stood for "Arschficker", literally "ass fucker"). Later, the use of a pink triangle was established for prisoners identified as homosexual men, which also included bisexual
Black triangle (badge) with the rights of disabled people have adopted the symbol in their campaigns. Such groups cite press coverage and government policies, including changes to incapacity benefits and disability living allowance, as the reasons for their campaigns. "The Black Triangle List" was created to keep track of welfare-related deaths due to cuts by the Department for Work and Pensions. The inverted black triangle was first used in the UK to indicate that a drug or vaccine is new and to monitor its usage. The scheme was adopted by the European Union in 2013. Black triangle (badge) The black triangle was a