Here you go I typed it up
From Middle French massacre"wholesale slaughter, carnage," from Old French macacre, macecle "slaughterhouse, butchery," of unknown origin; perhaps related to Latin macellum "provisions store, butcher shop."
It would be the "A. Pawnee" that was the Caddoan tribe that settled along the rivers in eastern Oklahoma, due mostly to the fact that these rivers greatly helped to irrigate the land for farming.
<span>Prior to the development of city-states, people lived in rural spread out hamlets, which were subject to frequent raids by other factions. By concentrating people in a more protected settlement, which was the forerunner of the city-state, people had an increased survival rate.</span>