Same religions. Same political structures. Same engineering - we've only recently duplicated their concrete, and man, could they build roads and aqueducts. Y

Same religions. Same political structures. Same engineering - we've only recently duplicated their concrete, and man, could they build roads and aqueducts. Yeah, they had a dodgy number system, but they had military and political organizations that lasted 1000+ years. They had worldwide trade, and unified far more territory than anybody today.