General scheme of the political organization of indigenous peoples in the Valley of Mexico basin and shortly before the conquest, based on the book by Charles Gibson, The Aztecs under Spanish rule. CENTURY 1519-1810 (Mexico) ISBN 9789682301445 and based file Basin of Mexico 1519 map-es.svg located in https://commons.wikimedia.org/wiki/File:Basin_of_Mexico_1519_map-es.svg.
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Sarumo74