The Indus valley civilisations (one of the cradles of civilisation) had a covered sewer system. The first urban sanitation system might have been Harappa around 4 500 years ago. It included baths. The people in Lothal had a toilet in every house around 4370 years ago. They also had normed brick sizes to make building easier.
While we’re on industrial norms: Mesopotamia (another cradle of civilisation) had mass-produced bowls. They were traded with other city-states (read: internationally). They also had a writing system, schools (at least for the upper class), and exercise slates. The Sumerians and Akkadians in Mesopotamia formed a sprachbund that meant many people were bilingual in the 3rd millennium BC.
While we’re on the topic of literacy in ancient civilisations: Signboards were a thing. Enough people were literate to have signboards and inscriptions on houses. The oldest known inscription is on a lintel in Dholavira, Indus valley from 5000ish years ago (We have no idea what it says though.).
That’s just my five cents to people have always been people, and people have always been awesome. Sorry for the rant (but do tell me if you want to hear more about awesome in the other cradles of civilisation; or the proto-communism debate; or the “mother-goddess” debacle; or egalitarian values in ancient cultures (I might have to re-read Plato to go into full detail on that one and include the Greeks).