Second mound builders

Unlike the first Mound Builders, that culture were from Northern Europe. The second Mound Builders were Aztecs whom ventured along the Gulf of Mexico to avoid a devastating draught which lasted centuries.

The draught ended a few decades before 1492. The Draught ended just in time for the Second Mound builders to pack up their settlements in the Mississippi area and return to Mexico. To meet the Conquistadors. The Aztecs had simply arrived back in some cases only a few years, in others a decade or so. The draught was so bad that only creatures associated with semi-arid could survive and then only in very small populations.

The reasons for Chaco Canyon and similar are because the Aztecs and related cultures need to perform Human sacrifice in order for their psychotic cultures to function. Which is not all that different from the present central American Gangs; killing anyone at any time for any reason is not unlike the Aztecs. Which is a behavior pattern shared by the cultures whom have embraced Islam. Killing to kill to please the deities.