Conversation so far:
How did the indigenous peoples of Mexico develop their cities while under the restrictions of non-indigenous people?
As the Spanish consolidated their rule, the crown recognized the indigenous nobility in Mesoamerica as nobles and kept the existing basic structure of indigenous city-states.
How did the economy of colonial Mexico work?
Since Mesoamerican peoples had an existing requirement of labor duty and tribute pre-conquest, Spaniards who were awarded the labor and tribute of particular communities in encomienda could benefit financially.
Are there any other interesting aspects about the article about the indigenous peoples of Mexico besides the colonial era?
Literacy rates are much lower for the indigenous peoples of Mexico, particularly in the southwestern states of Guerrero and Oaxaca.

Question: How come?
Self-contained rewrite: How come the literacy rates are much lower for the indigenous peoples of Mexico compared with other peoples?