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.
Differences and Similarities. 1  Inca's empire was more vast than the Aztec.  Inca's method of communication was more advanced with the creation of a runner system who carried messages to their capital and other areas within the empire.