When we visited New Mexico a couple of years ago, we visited the ruins of some old Indian dwellings and missions and were told that for years the death of some of the local tribes was blamed on the Spaniards, but evidence now indicates that it was a terrible drought in that same early period that killed off the tribes. Could the same drought have been the problem in Mexico?
The drought believed by some to have disrupted life on the Colorado Plateau preceded the Spaniard diseases by a few hundred years.