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Two medics attend to a high school student after she suffers from heatstroke during the Flag Day ceremony inside the Campo Marte facilities, Mexico City. Mexican Flag Day was established on 24 February 1934. However, this national commemoration was officially recognised until 1940, by decree of President Lázaro Cárdenas del Río. (Photo by Gerardo Vieyra/NurPhoto via Getty Images)

Two medics attend to a high school student after she suffers from heatstroke during the Flag Day ceremony inside the Campo Marte facilities, Mexico City.

Mexican Flag Day was established on 24 February 1934. However, this national commemoration was officially recognised until 1940, by decree of President Lázaro Cárdenas del Río. (Photo by Gerardo Vieyra/NurPhoto via Getty Images)