Some encomiendados studies tell in such a way that of this group it more than did not remain ten percent of the original population, destroyed for the intensity of the enslaved work how much for the varied illnesses brought for the conquerors. After this, these peoples had lost its characteristics and had left to concentrate themselves next to the populations tamers. The colonizadores had congregated thousand of aboriginals to the society do not stop being part of the same one, but yes to be enslaved until the death, exploring them as crossbows feras of loads, to all how many they could be assumen. Thus it was throughout the centuries, a time that each front of expansion that if opened on a new land, had a primitive tribe there. According to Ribeiro (1995), he was done immediately a source of captive slaves and immediately captured women for the agricultural work, and also for gestation of children and domestic tasks. Meli (1979) points that it had a group called missioneiros indians that came across with the shelter of the colonial fury in the reduction of the Portuguese, Jesuit and Spanish missionaries.

During certain time, although the great efforts so that the indians if converted, still obtained of disfarada form to multiply culturally. The author (they idem) had as objective to tell and to understand the history of the Guarani people by means of the catequeses and searched to understand what he occurred when the indians if converted. With the end of the reductions and, consequently, with the withdrawal of the Jesuits of the Iberian colonies, the Guarani missioneiros constantly was finished by violent expeditions of capture carried through by the So Paulo bandeirantes and the greed of the Spanish encomiendeiros.