The document discusses three holidays celebrated in Mexico: Los Ninos Heroes Day on September 13th honoring six teenage cadets who died defending Chapultepec Castle from American troops; Mexican Independence Day on September 16th commemorating Mexico's declaration of independence from Spain with patriotic cries and no work; and Revolution Day on November 20th marking the start of the Mexican Revolution that overthrew dictator Porfirio Diaz's 30-year rule, bringing political stability each year under his and Benito Juarez's leadership.