The official flag of New Mexico consists of a red sun symbol of the Zia people on a field of gold (yellow). It was officially adopted in 1925 to highlight the state's Native American and Hispano roots; it combines a symbol of the Puebloan people, who have ancient roots in the state, with the colors of the flag of Spain, which established and ruled Nuevo México for over two and a half centuries. The proportions of the symbol are fixed by New Mexico law: The four groups of rays are set at right angles, with the two inner rays one-fifth longer than the outer rays, and the diameter of the circle in the center is one-third the width of the symbol. (Source: Wikipedia.org, CC BY-SA)