Rainbow flag Alliance (ICA) designed an international co-op symbol and a flag for the first "Co-operators' Day," which was held in July 1923. After some experiments with different designs, a famous French cooperator, Professor Charles Gide, suggested using the seven colours of the rainbow for the flag. He pointed out that the rainbow symbolized unity in diversity and the power of light, enlightenment and progress. The first co-op rainbow flag was completed in 1924 and was adopted as an official symbol of the international cooperative movement in 1925. In 2001, the ICA's official flag was changed from a rainbow flag to a
DIY rainbow crossing activities around the world. The idea to create rainbow crosswalks appears to have first emerged in West Hollywood as part of the 2012 Gay Pride Month celebrations, initially proposed by the LA based artist Martin Duvander with the crosswalks at the intersection of San Vicente Boulevard and Santa Monica Boulevard painted rainbow colours for the month of June. In May 2012, Tel Aviv city hall painted a crosswalk in rainbow colours for a photo shoot to promote "TYP: Ivri Lider and Johnny Goldstein", the act scheduled to headline the Gay Pride Parade's main concert. These photos, reminiscent of the Beatles