LIDERAZGOS Y ORGANIZACIONES SOCIOPOLíTICAS INDíGENAS EN PAMPA Y PATAGONIA NORTE DURANTE EL SIGLO XVIII. UNA RECONSTRUCCIóN A PARTIR DE LOS VíNCULOS INTERéTNICOS EN LA FRONTERA DE BUENOS AIRES

in this paper we analyze the interethnic relations forged in the southern border of buenos aires, focusing on the actions of the indigenous "chiefs". we propose the xviiith century as a time of "leadership" and "chiefdoms" emergency among independent indigenous people of pampas and northern patagonia. we researched in the archivo general de la nación argentina, "division colonia", in "comandancia de fronteras" source. it functioned in the xviiith century, since the creation of defensive emplacements to protect buenos aires of the independent natives. we analyze the correspondence between border military authorities and the governor (and since 1776 the viceroy), and the diaries of explorers and missionaries of the period and we reconstruct some of the different kinds of leadership in the region.