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:
Mexico–United Kingdom relations
After Mexico declared its independence in 1810, Britain was the first European "great power" to recognize Mexican sovereignty. Soon afterwards, Emperor Agustín de Iturbide sent a diplomatic envoy to London to establish diplomatic communications between the two nations. In 1837, both nations signed a treaty to abolish the slave trade. The British established a network of merchant houses in the major cities. However, according to Hilarie J. Heath, the results were bleak: