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:
Republic of the Rio Grande
After a decade of strife, Mexico won its independence from the Kingdom of Spain in 1821. After a failed attempt at a monarchy, Mexico adopted a new constitution, the 1824 Constitution. This new constitution established los "Estados Unidos Mexicanos", or "the United Mexican States," as a federal republic. During the war for independence, many rebels were driven to Coahuila and Nuevo León, where this revolutionary mentality won the hearts and minds of the people.