is celebrated from the evening of September 15 with a re-creation of the Grito de Dolores by all executive office-holders (from the President of the Republic down to municipal presidents) and lasts through the night. Aniversario de la Revolución This day commemorates the Mexican Revolution which started on November 20, 1910 when Francisco I. Madero planned an uprising against dictator Porfirio Díaz's 31-year-long iron rule. Article 74 of the Mexican labor law (Ley Federal del Trabajo) provides that the third Monday of November (regardless the date) will be an official holiday in Mexico. This was a modification of the law made in 2005, effective since 2006; before then, it was November 20 regardless of the day, and all schools gave extended holidays if the day was a Tuesday or Thursday. Although November 20 is the official day, the uprising started on different days in different parts of the country. Confusion regarding Cinco de mayo Contrary to common misconception in the U.S., Cinco de mayo is not Mexico's "Independence Day", but rather commemorates the victory of Mexican Republican forces over French forces in the first Battle of Puebla on May 5, 1862. In the battle fought there the following year the French forces were the victor. In contrast to Independence Day, described above, Cinco de mayo is observed mostly at a local level in Puebla State and is a minor Bank Holiday in the rest of Mexico. Many labor unions have negotiated to have the day off, however, since its proximity to Labor Day (May 1) often allows an extended five-day weekend or two consecutive three-day weekends. The first observance of Cinco de Mayo was in Los Angeles, California, in 1863. The observance sought to boost the spirits of American and Mexican residents during the dark days of the American Civil War and the Franco-Mexican War. Puebla would not hold its own celebrations until after the French were driven out of the city a few years later. See: Hayes-Bautista, Dr. David E. El Cinco de Mayo: An American Tradition. Berkeley, University of California Press, 2012. ISBN 978-0-520-27212-5. See also Flag flying days in Mexico Holidays and celebrations in Mexico References Mexican culture Cultural festivals in Mexico Folk festivals in Mexico