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:
Declaration of Independence of the Mexican Empire
The Ruiz de Velasco family were the original owners for 128 years of the Acta de Independencia del Imperio Mexicano de 1821. This document was passed down through generations from Nicolás Bravo. On August 22, 1987, Pedro Ruiz de Velasco de la Madrid gave the document as a gift to Mexico. José Francisco Ruiz Massieu, Governor of Guerrero, accepted this gift and secured this historical document in the Museo Historico de Acapulco Fuerte de San Diego in Acapulco in the State of Guerrero.