The development of the earliest cities in Mesopotamia and the Middle East led to a substantial increase in violence between inhabitants. Laws, centralized administration, trade and culture then caused the ratio of violent deaths to fall back again in the Early and Middle Bronze Age (3,300 to 1,500 BCE). This is the conclusion of an international team of researchers from the Universities of Tübingen, Barcelona and Warsaw. Their results were published in Nature Human Behaviour.
in general i think we undervalue the ability of pre-literate humans to keep memories alive for truly inconceivable stretches of time… especially when they are really important, like when entire cities tear themselves apart with anarchy and no doubt every known disease as a result… the drama of it can’t be overstated on the minds of the people who lived it… they had only recently been kicked out of Eden, which was also very real in their minds… those people knew all the Gods had turned their backs on them, because they lived the first real large scale human suffering…