Editing Pre-Columbian era (section)

===Bibliography===
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*{{citation|last1=Vivian|first1=R. Gwinn|last2=Hilpert|first2=Bruce|title=The Chaco Handbook: An Encyclopedic Guide|year=2012|publisher=University of Utah Press|edition=2|isbn=978-1-60781-195-4}}
* {{cite book |last=Wright |first=Ronald |author-link=Ronald Wright |year=2005 |title=Stolen Continents: 500 Years of Conquest and Resistance in the Americas |publisher=Houghton Mifflin |isbn=978-0-618-49240-4 |url=https://books.google.com/books?id=RmqmSdjbyikC&pg=PP1}}
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