Flag of Earth tour through Europe. The Universal Peace Congress adopted this flag as its World Peace Flag. Designed by Pierre de Coubertin in 1914 and adopted in Olympic games since 1920, the Olympic flag represents all mankind and has a white bar with 5 interlocking rings of 5 colors. The five rings represent the five continents. The six colors (including the white color of the background) represent all of the world's nations. The World Citizen is a social movement for global citizenship under a proposed world government. In 1953, one of its activists, Garry Davis, founded the World Service Authority, which sells
How many angels can dance on the head of a pin? How many angels can dance on the head of a pin? The question "How many angels can dance on the head of a pin?" (alternatively ""How many angels can stand on the "point" of a pin?"") is a reductio ad absurdum of medieval scholasticism in general, and its angelology in particular, as represented by figures such as Duns Scotus and Thomas Aquinas. It is first recorded in the 17th century, in the context of Protestant apologetics. The question has also been linked to the fall of Constantinople, with the imagery of scholars debating about minutiae while the Turks besieged the