People often make the assumption that everyone was just roaming primitive hunter-gatherer cavemen chasing deer across the plains until one day somebody just hap

People often make the assumption that everyone was just roaming primitive hunter-gatherer cavemen chasing deer across the plains until one day somebody just happened to suggest "Hey, why don't we stop here, start some large-scale intensive agriculture, and build a city?" That's beyond extremely unlikely. People lived in villages sustained by horticulture, fishing, local hunting and gathering, and pastoral herding long before intensive agriculture. Probably at least 5,000-10,000 years before. They could certainly have built other things if they had a use for them, and would use them long enough to make it worthwhile. Those that migrated seasonally from one village to another, year after year, might have done so.