Currently there are many questions of how and why? of the disastrous passage of the appreciated Tulumayos inhabitants, the questioning is completely understandable.

Several historians try to explain this fatality, they do the impossible to unfold what happened, one of the theories explains that, in the years 1704, a tragic situation of genocide came to their villages, the natives, shipibo and caillisecas, managing to exterminate great part of his people, even more, with the arrival of the conquerors who brought many epidemics.