The Aztecs originated in the middle part of the Valley of Mexico, and it was from this site that their empire spread to other, more southern parts of the region. These zones extend from the coast of Chiapas all the way to Guatemala, occupying the modern territories of the states of Mexico, Veracruz, Guerrero, Puebla, and Oaxaca as well as parts of Chiapas.
″City-States of the Aztecs.″ In Mogens Herman Hansen (ed.). A Comparative Analysis of the Cultures of Thirty Different City-States Pages 581–595 of The Royal Danish Academy of Sciences and Letters publication, which was published in Copenhagen.
The article ″Aztecs″ from the 1911 edition of the Encyclopaedia Britannica is available in its entirety on Wikisource. There are several media on Wikimedia Commons pertaining to the Aztecs. Aztecs @ Mexicolore is an educational website that is regularly updated and focuses primarily on the Aztecs. It is intended for serious students of all ages.
The term ″aztec″ was not used to refer to a specific ethnic group by the Aztecs themselves; hence, it is not an endonym. It was more of an umbrella word that was used to refer to a number of different ethnic groups, not all of which spoke Nahuatl, but all of which claimed lineage from the mythical site of origin known as Aztlan.
The layout of the majority of Aztec towns was rather uniform, consisting of a central plaza with a massive pyramid including two steps and a twin temple facing westward. The practice of calendar rites that were dedicated to the many gods of the Aztec pantheon was the central tenet of Aztec religious activity.