Rainbows have been one of natures most beautiful and mysterious gifts and its symbolism has been used over the years for many various causes going back to mythology and have been used to symbolize hope and social change for hundreds of years. Examples include its use as a symbol of the Cooperative movement in the German Peasants' War in the 1500's and as a symbol of peace in Italy, and as a symbol of LBGT and gay pride social movements.
