The flags of Mexico throughout its history
The rectangular ratio of height to width of the Flag of Mexico is 4: 7 divided into three vertical stripes of green, white and red colors from the flagpole. The national shield is located in the white central strip and at the center of it having a width of three quarters of the width of the strip. February 24 was established as the "Flag Day". The current flag of Mexico contains the green, white and red colors oriented vertically and the national shield in the center. From the beginning of Mexican history, the peoples of the center of the country already used representative banners of their manors. With the arrival of the Spaniards to the territory they introduced their own flags and banners. Some regions of central Mexico had distinctive banners such as the Aztec and Tlaxcalan emblems. During the viceregal era there was no flag representing the American territory of New Spain although they had the widespread use of the blazons of the Spanish peninsular monarchy. During the beginning of the independence war led by Miguel Hidalgo y Costilla a canvas was used with the figure of the Virgin of Guadalupe with which Hidalgo called and led the insurrection war, at the same time that the Spaniards determined to use the image of the Virgin of remedies. During the period of the independence war of the American Creoles against the peninsular Spaniards, new flags and banners were repeatedly established with which it was intended to represent the movements and the new orders that were established at the time. The conformation of the Mexican flag was promulgated as a national symbol by the new Constituent Congress in the year 1823 based on the design of the determination of the last Provisional Governing Board of 1821 who ruled the colors and the use of an eagle on a cactus in the center . The changes suffered during the establishment of the republic have primarily been applied to the eagle of the central shield to which they have represented it in various forms and positions with decorative elements that alternated according to the liberal, conservative, republican and imperial groups of the subsequent social movements and politicians. The last decree that determines the characteristics of the flag was promulgated in 1983 by President Miguel de la Madrid Hurtado. The flag, the shield and the national anthem are symbols of the homeland that unite us in the midst of the pluralism, social, cultural and political that They make up the Mexican people.