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
International Symbol of Access Koefoed’s symbol depicts an empty wheelchair. This icon was widely promoted around Sweden the following year. Karl Montan, director of Sweden’s new Handicapped Institute, also promoted Koefoed’s design to Rehabilitation International. Head of RI’s International Commission of Technology and Accessibility (ICTA), Montan was asked by RI to form a special committee that would find and deliver a symbol to the group’s 1969 convention in Dublin. Montan’s group was asked to choose from six symbols. When Koefoed’s symbol was presented, several members complained that it was too austere and illegible. As Montan noted: "a slight inconvenience with the symbol is the