Indigenous North Americans and pre-Columbian Americans were savages...

Consider this Canadian country during the early history of Montreal when the land was in its wild, uncultivated and natural condition. The soil was unproductive, rocky and almost uninhabitable—vast forests stretching in every direction. What invisible power caused this great metropolis to spring up amid such savage and forbidding conditions? It was the human mind. Therefore, nature and the effect of nature’s laws were imperfect. The mind of man remedied and removed this imperfect condition, until now we behold a great city instead of a savage unbroken wilderness. Before the coming of Columbus America itself was a wild, uncultivated expanse of primeval forest, mountains and rivers—a very world of nature. Now it has become the world of man. It was dark, forbidding and savage; now it has become illumined with a great civilization and prosperity. Instead of forests, we behold productive farms, beautiful gardens and prolific orchards. Instead of thorns and useless vegetation, we find flowers, domestic animals and fields awaiting harvest. If the world of nature were perfect, the condition of this great country would have been left unchanged.

If a child is left in its natural state and deprived of education, there is no doubt that it will grow up in ignorance and illiteracy, its mental faculties dulled and dimmed; in fact, it will become like an animal. This is evident among the savages of central Africa, who are scarcely higher than the beast in mental development.

http://reference.bahai.org/en/t/ab/PUP/pup-101.html