"In 1987, six gay activists in New York formed the Silence = Death Project; the six men who created the project later joined the protest group ACT UP and offered the logo to the group, with which it remains closely identified. The pink triangle was established as a pro-gay symbol by activists in the United States during the 1970s; the symbol of the pink triangle, usually turned upright rather than inverted, was a conscious attempt to transform a symbol of humiliation into one of solidarity and resistance. By the outset of the AIDS epidemic, it was well-entrenched as a symbol of gay pride and liberation" (extract from Encyclopedia of AIDS)