The article mentions but doesn't discuss Mesoamerican empires. I think those should have some interesting idiosyncracies. There was a total absence of horses/ox

The article mentions but doesn't discuss Mesoamerican empires. I think those should have some interesting idiosyncracies. There was a total absence of horses/oxes/draft animals before the Columbian exchange, so transportation and notions of geographic distance might have been very different.