During the 1970s and 1980s, with protochronism receiving official endorsement, it was claimed that red, yellow and blue were found on late 16th-century royal grants of Michael the Brave, as well as shields and banners. Contemporary descriptions and later reconstructions indicate the flag of Wallachia during Michael's reign was made of damask, originally yellow-white but later faded to white. It featured a black eagle on a green juniper branch, with a cross in its beak. During the Wallachian uprising of 1821, the colors were present, among many others, on the canvas of the revolutionaries' flag (a religious image) and in its fringes; much later historiography attributed to them the following meanings: "Liberty (sky-blue), Justice (field yellow), Fraternity (blood red)".