DO after a doctor's name means that the doctor is a graduate of an osteopathic medical school in the United States.
The Difference Between The Aztec, Maya, Inca, And Olmec. âIt will happen â a seeing [. . In A Nutshell. The Olmec, Mayan, Incan, and Aztec civilizations are some of the greatest ancient civilizations in history, and yet we know very little about them compared to other parts of the world.
In the case of the Aztec there were the Toltecs and with the Incas, the Guarani. And ofcourse there were these European diseases like small pox or malaria which the Amerindians had no immunity against.