more serious because these surrounding herdsmen and hunters possessed large numbers of tamed horses. It was the possession of horses which gave them a tremendous military advantage over their rich neighbors to the south. In a short time they overran all Mesopotamia, driving forth the last waves of culture which spread out over all of Europe, western Asia, and northern Africa.
These conquerors of Mesopotamia carried in their ranks many of the better Andite strains of the mixed northern races of Turkestan, including some of the Adamson stock. These less advanced but more vigorous tribes from the north quickly and willingly assimilated the residue of the civilization of Mesopotamia and presently developed into those mixed peoples found in the Euphrates valley at the beginning of historic annals. They quickly revived many phases of the passing civilization of Mesopotamia, adopting the arts of the valley tribes and much of the culture of the Sumerians. They even sought to build a third tower of Babel and later adopted the term as their national name.
When these barbarian cavalrymen from the northeast overran the whole Euphrates valley, they did not conquer the remnants of the Andites who dwelt about the mouth of the river on the Persian Gulf. These Sumerians were able to defend themselves because of superior intelligence, better weapons, and their extensive system of military canals, which were an adjunct to their irrigation scheme of interconnecting pools. They were a united people because they had a uniform group religion. They were thus able to maintain their racial and national integrity long after their neighbors to the northwest were broken up into isolated city-states. No one of these city groups was able to overcome the united Sumerians.
And the invaders from the north soon learned to trust and prize these peace-loving Sumerians as able teachers and administrators. They were greatly respected and sought after as teachers of art and industry, as directors of commerce, and as civil rulers by all peoples to the north and from Egypt in the west to India in the east.
After the breakup of the early Sumerian confederation the later city-states were ruled by the apostate descendants of the Sethite priests. Only when these priests made conquests of the neighboring cities did they call themselves kings. The later city kings failed to form powerful confederations before the days of Sargon because of deity jealousy. Each city believed its municipal god to be superior to all other gods, and therefore they refused to subordinate themselves to a common leader.
The end of this long period of the weak rule of the city priests was terminated by Sargon, the priest of Kish, who proclaimed himself king and started out on the conquest of the whole of Mesopotamia and adjoining lands. And for the time, this ended the city-states, priest-ruled and priest-ridden, each city having its own municipal god and its own ceremonial practices.
After the breakup of this Kish confederation there ensued a long period of constant warfare between these valley cities for supremacy. And the rulership variously shifted between Sumer, Akkad, Kish, Erech, Ur, and Susa.
About 2500 B.C. the Sumerians suffered severe reverses at the hands of the northern Suites and Guites. Lagash, the Sumerian capital built on flood mounds, fell. Erech held out for thirty years after the fall of Akkad. By the time of the establishment of the rule of Hammurabi the Sumerians had become absorbed into the ranks of the northern Semites, and the Mesopotamian Andites passed from the pages of history.
