Maybe I am looking for too simplistic an answer but the explosion on the island of Santorini (Thera) would have caused all of his list: the drought, the famine, force the people in the area to become "the invaders" and would have caused earthquakes. Thus the culprit for all of it has to be the explosion of the island of Thera. But we all knew this eons ago.

At least that's how it happened in my reality.

cheers

"There is nothing as impenetrable as a closed mind"
and ..." if everything is a coincidence what is the point of studying or measuring or analyzing anything ?" db