My membership doesn't allow me to edit, so i have to add:

Gold as color associated of bravery may result from the "Pour le Mérite" (founded by Frederick the Great in 1740 for bravery). The bearers of the medal had some exclusive rights: All soldiers - even the higher ranks - had to salute them, also all guards. Frederick awarded the medal also to civilians like his friend Voltaire. In 1842 a "peace class" for science and arts was founded, it still exists today. Very famous bearer is Alex von Humboldt.