Mexico history
https://en.m.wikipedia.org/wiki/History_of_Mexico

Spanish conquest of the Aztec empire (Mexico)
https://en.wikipedia.org/wiki/Spanish_conquest_of_the_Aztec_Empire

Hernan Cortes
https://en.wikipedia.org/wiki/Hern%C3%A1n_Cort%C3%A9s

Mexico war of independence
https://en.m.wikipedia.org/wiki/Mexican_War_of_Independence

Spanish conquest of the Maya
https://en.m.wikipedia.org/wiki/Spanish_conquest_of_the_Maya

Mexico's Cold War: Cuba, the United States, and the Legacy of the Mexican Revolution
(Cambridge Studies in US Foreign Relations): Renata Keller: Amazon.com: Books
https://www.amazon.com/Mexicos-Cold-War-Revolution-Cambridge/dp/1107079586

Mexico-Cuba relations during Cold War
https://en.m.wikipedia.org/wiki/Cuba%E2%80%93Mexico_relations

Dirty War (Mexico)
https://en.m.wikipedia.org/wiki/Dirty_War_(Mexico)

Mexico Project
http://nsarchive.gwu.edu/mexico/

Mexico's Dirty War
http://nsarchive.gwu.edu/NSAEBB/NSAEBB209/index.htm

Video on Mexican Revolution: The storm that swept Mexico
https://youtu.be/pVWcgOcvgV0

Tlatelolco massacre: declassified U.S. documents on Mexico and the events of 1968
http://nsarchive.gwu.edu/NSAEBB/NSAEBB10/intro.htm

Gustavo Díaz Ordaz (1964-1970)
Luis Echeverría (1970-1976)
José López Portillo (1976-1982).

Detalles sobre "guerra sucia" mexicana
http://news.bbc.co.uk/hi/spanish/latin_america/newsid_4757000/4757012.stm

The Dawn of Mexico's Dirty War
http://nsarchive.gwu.edu/NSAEBB/NSAEBB105/index.htm