<Tr> <Th> Blazon </Th> <Td> Atop a nopal pedestal, a Mexican golden eagle devouring a rattle snake </Td> </Tr> <Tr> <Th> Supporters </Th> <Td> Oak and laurel leaves </Td> </Tr> <P> The coat of arms of Mexico (Spanish: Escudo Nacional de México, literally "national shield of Mexico") depicts a Mexican (golden) eagle perched on a prickly pear cactus devouring a rattlesnake . The design is rooted in the legend that the Aztec people would know where to build their city once they saw an eagle eating a snake on top of a lake . The image has been an important symbol of Mexican politics and culture for centuries . To the people of Tenochtitlan, this symbol had strong religious connotations, and to the Europeans, it came to symbolize the triumph of good over evil (with the snake sometimes representative of the serpent in the Garden of Eden). </P> <P> The Law on the National Arms, Flag, and Anthem regulates the design and use of the arms . They feature in the centre of the flag of Mexico, are engraved on the obverse of Mexican peso coins, and are the basis of the Seal of the United Mexican States, the seal used on any official documents issued by the federal, state or municipal governmental authorities . The seal differs from the arms by the addition of the words Estados Unidos Mexicanos ("United Mexican States", the full official name of the country) in a semicircle around the upper half . </P>

Where did mexico's coat of arms on its flag originate
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