evolution Day, ( el Día de la Revolución ) is celebrated every year in Mexico on November 20th. On this day, Mexicans remember and celebrate the Revolution which started in 1910 and lasted for about ten years. The holiday is sometimes referred to by its date, el veinte de noviembre (the 20th of November). The official date is November 20, but nowadays students and workers get the day off on the third Monday of November, no matter which date it falls on. This is a national holiday in Mexico in commemoration of the beginning of the Mexican Revolution . Why November 20? The revolution began in 1910, initiated by Francisco I. Madero, a reformist writer and politician from the state of Chihuahua, to oust President Porfirio Diaz who had been in power for over 30 years. Francisco Madero was one of many people in Mexico who were tired of Diaz' authoritarian rule,. Along with his cabinet, Diaz was aging while holding tightly to the reins of the country. Madero formed t