I read "1177 BC" by Eric Cline. I suppose that the Iliad by Homer might best represent what happened...the marauding "sea people" finally figured out how to successfully lay siege to walled cities (in addition to successfully challenging their ships) while perhaps these cities were weakened by some sort of climate change or crop failures. The invention of cheap iron weaponry also played a part? I find it interesting that Christianity and perhaps Hinduism and Taoism sort of followed in the wake of "civilization" (walled cities and those that reoccupied defeated walled cities, perhaps quite ag dependent) while Islam kind of followed the marauding, tribal elements (Berbers, Bedouins, Turko-Mongols). The "Sea People" may well have been the foundations of the Greeks and Romans, who may have hated on Hittites, Egyptians, and Canaanites, but later picked up the mantle of civilization, ag, and order. Also interesting (and scary) that worldwide there is a rebellion against "elites" by less-educated elements...how long can the established forces of ag-supported/military-heavy government maintain order/power in the face of current climate change and dissention?