In 2010, Mexico celebrated both the 200th anniversary of its Independence and 100th anniversary of its Revolution. The entire year was proclaimed by President Felipe Calderón as "Año de la Patria", or "Year of the Nation." 16 September 1810 is the day of the "Grito de Dolores" or Miguel Hidalgo's call to take up arms against the Spanish colonial government. The start of the Mexican Revolution is celebrated as being 20 November 1910, when Francisco "Pancho" Villa and Pascual Orozco led the first insurrectionist attack. Events and other promotions of these celebrations were designed to link of Mexico's identity and historic continuity. During a speech at the inauguration of the Casa de Allende (Allende House) Historic Museum, Felipe Calderón called upon Mexico to use the upcoming anniversaries to reflect on where the country has been and to think about what kind of Mexico descendants will inherit in the future. He said the vision of the insurgents of the War of Independence was forward, not backward, so every celebration of these past events must consider the future as well.
The two dates represent the beginning of the Mexican War of Independence and Mexican Revolution respectively. The anniversary of the War of Independence is called "El Grito" (The Shout or The Cry) and takes place at 11 pm on 15 September, with the following day 16 September officially marking Mexico's Independence. El Grito is a re-enactment of the call made by Miguel Hidalgo y Costilla in Dolores Hidalgo, Guanajuato at around 6 am on 16 September 1810 to his parish to take up arms against the Spanish colonial government. Each year, this re-enactment occurs not only on the main square (Zócalo) of the capital, Mexico City, but also on every main plaza in almost all communities in the country.
The date of 20 November is used to mark the start of the Mexican Revolution, or the uprising and civil war that took place from 1910 to 1920. Presidential contender Francisco I. Madero chose the date in his Plan of San Luis Potosí to begin an uprising against President Porfirio Díaz who had thrown Madero in jail rather than accept his victory in the elections of 1910. Although violence against the Díaz regime had already broken out in the name of this Plan, the date is still considered official.