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:
Guatemala–Mexico relations
Guatemala and Mexico are two neighboring countries who share a common cultural history from the Maya civilization and both nations were colonized by the Spanish empire. In 1821, Mexico gained independence from Spain and administered Guatemala (and most of Central America) during the First Mexican Empire. In 1823, the empire collapsed and Guatemala joined the United Provinces of Central America, however, the Guatemalan region of Chiapas choose to separate from Guatemala and joined Mexico as a state. In 1838 the union dissolved and Guatemala became an independent nation. Both nations established diplomatic relations in 1838 and diplomatic missions were soon opened. In 1926 both nations resident diplomatic missions were elevated to embassies.