Today I learned there are six places where cities emerged independently of any other centre, the so-called 'pristine civilizations,' Fertile Crescent, Mesopotamia Nile Valley Indo-Gangetic Plain North China Plain Andean Coast Mesoamerican Gulf Coast https://en.m.wikipedia.org/wiki/Cradle_of_civilization
@b870d4c8 Have you read James C Scott's *Against the Grain*? If not, I cannot recommend it more highly for an exceptionally well informed 'anarchist squint' on this period of history. TL;DR it isn't 'civilisation' but the forced domestication of human labour.
And this is the map of Roman coin hoards. The one furthest east is coins of Constantine found while excavating a medieval Okinawan castle. https://chre.ashmus.ox.ac.uk/ https://media.mastodon.nu/media_attachments/files/111/079/033/759/746/816/original/7f2bd7206a6a672c.png
@b870d4c8 I highly recommend “The Human Web”, by the McNeills (father and son). It touches on the earliest civilisations, what created them and also how they sooner or later got caught up in the global, human web. http://www.publishersweekly.com/9780393051797