The first official Greek national emblem was described in the Provisional Constitution adopted by the First National Assembly at Epidaurus on 1 January 1822 and was established by decree on 15 March of the same year. The national emblem was described as a simple cockade of white and blue. These colours were chosen as the national colours over more "revolutionary" choices such as black and red, popular in Greece ever since Rigas had proposed them, so as to disassociate the government and the revolution from any perceived links to radical movements in the eyes of the conservative European royal courts.