Pink Because of this, the pink triangle has become a symbol of the modern gay rights movement. The transition to pink as a sexually differentiating color for girls occurred gradually, through the selective process of the marketplace, in the 1930s and 40s. In the 1920s, some groups had been describing pink as a masculine color, an equivalent of the red that was considered to be for men, but lighter for boys. But stores nonetheless found that people were increasingly choosing to buy pink for girls, and blue for boys, until this became an accepted norm in the 1940s. In optics, the
Caduceus as a symbol of medicine of medicine with commerce, recognizing the importance of "advertising essential for competitive marketing", and suggesting that it is up to individual physicians to choose between the two symbols, based on their own views about what associations are appropriate. In 2009, conspiracy theorist David Icke suggested that the American Medical Association deliberately adopted the symbol due to their underlying profit motives, although the AMA has used the Rod of Asclepius for over a century, and its current logo since 2005. In North America, there are calls to clarify the symbol and to move to a uniform use of the rod of