The inverted black triangle (German: schwarzes Dreieck) was an identification badge used in Nazi concentration camps to mark prisoners designated asozial ("asocial")^[1][2] and arbeitsscheu ("work-shy"). The Roma and Sinti people were considered asocial and tagged with the black triangle.^[1][3] The designation also included alcoholics, beggars, homeless people, nomads, prostitutes, and violators of laws prohibiting sexual relations between Aryans and Jews.^[1][2] Women also deemed to be anti-social included nonconformists.^[2][4]

You can help expand this article with text translated from the corresponding article in German. Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 9,116 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Schwarzer Winkel]]; see its history for attribution. You should also add the template {{Translated|de|Schwarzer Winkel}} to the talk page. For more guidance, see Wikipedia:Translation.

• Antiziganism
• Aktion Arbeitsscheu Reich
• Action T4
• Anti-homelessness legislation
• Discrimination against the homeless