The Uruk Period (c. 4000-2900 BC)

[@ConnoisseurOfExistence]

Very interesting, thanks!

[@BennySa-w4k]

I thought it was the Ubaid period where writing and calculations were first implemented?

[@Uhtred-the-bold]

And thanks for not being a d-bag and using BCE and CE

[@DWWorldHistory]

Yeah, I hate that, too.