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
Pink tide movement as well. Some pink tide governments, such as those of Argentina, Brazil and Venezuela, have been varyingly characterized as being anti-American, populist and authoritarian-leaning. The pink tide was followed by the conservative wave, a political phenomenon that emerged in mid-2010 in South America as a direct reaction to the pink tide and the victory of what has been described as far-right candidates in Paraguay, Honduras and Brazil, something referred by some analysts as a possible "brown tide" (in reference to the colour brown, normally associated with fascism). During the Cold War, a series of left-leaning governments attained power via