Responses (1)
About 10,000 years ago there were a thousand or so cities in the Indus Valley with total population around two million people. At that time there was no indication of war, no preparation for defense at all. The people spent their days painting pots and tending gardens. One day they all got up and went away, and the world has had continuous war ever since.
en.wikipedia.org/wiki/Mohenjo-daro