Benizaa (or Zapotec) city-states of central Mexico flourished from 800 A.D. until the arrival of the Spanish in 1521.

JOYCE MARCUS -- Ph.D. Harvard University – Professor at University of Michigan

Your overarching statement -- that factional conflicts can lead or do lead to war is certainly true in the 5 or 6 cases I know (Zapotec, Maya, Tarascan, Mixtec, Otomi, Aztec, Inka, etc....).  

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