Which is a similarity between the Mayan, Aztec, and Inca civilizations?

The closeness between the Aztecs, Mayans and Incas is that all had control of monstrous realms that in the end stopped to exist. Other than that basic factor, the gatherings all had various lifestyles and one of a kind dialects, political plans, strict perspectives and approaches to accommodate their kin.

early settlements on the subcontinent. both the indus and the ganges rivers carried rich silt from the mountains to the plains. when the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.