Indigenous peoples of Mexico
When Mexico gained independence in 1821, the casta system was eliminated as a legal structure, but racial divides remained. 
White Mexican argued about what the solution was to the "Indian Problem", that is indigenous who continued to live in communities and were not integrated politically or socially as citizens of the new republic. The Mexican constitution of 1824 has several articles pertaining to indigenous peoples. The second article of the constitution of Mexico recognizes and enforces the right of indigenous peoples and communities to self-determination and therefore their autonomy to:
Celebration of Mexican political anniversaries in 2010
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.