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Re:The real roots of early city states may rip up the textbooks by toasterlovin on Sunday October 15, 2017 @06:36PM (#15479725)
FYI, the pre-contact New World had civilizations with governments despite not having grains.
Re:The real roots of early city states may rip up the textbooks by koppong on Monday October 16, 2017 @09:20AM (#15482941)
> not having grains.

It is well attested that several North, Meso- and South American cultures were growing maize well before the arrival of the Europeans.