
1) Vintage vehicle
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https://www.crosswordclues.com/clue/anahuac
[Aztec] Anahuac (Nahuatl: Ānāhuac ɑːˈnɑːwɑk) is an ancient name for a Mesoamerican, particularly Aztec, area or areas, usually identified as located within or even coterminous with the Valley of Mexico. It can also refer to the former lake basins around Mexico City, often including the Lerma and Pánuco river systems. ==Boundries== ...
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http://en.wikipedia.org/wiki/Anahuac_(Aztec)

historical and geographic region of Mexico. The heartland of Aztec Mexico, Anáhuac (Nahuatl: `Land by the Water`) designated that part of New Spain ...
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http://www.britannica.com/eb/a-z/a/67

Geographical region of Mexico. The name was originally applied by the Aztecs to their kingdom, but is now used to describe the whole of the central Mexican plateau, and more specifically the...
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http://www.encyclo.co.uk/local/20688

the central plateau of Mexico, between the Sierra Madre Occidental and the Sierra Madre Oriental ranges (3700 to 9000 ft.; 1128 to 2743 m): center of former Aztec civilization.
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https://www.infoplease.com/dictionary/anahuac
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