use polities in a sentence.
So maybe polities of less than 300 million?
This is factually incorrect, because for over 1000 years European currencies were backed by silver or gold and were thus the same, despite the fact that European polities had vastly different spending priorities and indeed levels of development.
I don't think there are any federal laws demanding equal treatment of different polities by private (rather than state) actors.
One thing that's a bit confusing about "The Roman Empire" is that it bifurcates into the Western and Eastern empires, which were two wildly different polities with a shared name.
The Crown's North American subjects were the richest, most lightly taxed group of polities on Earth, the Crown's British subjects the second richest, most heavily taxed.
I'm sure you don't agree with them, and you may not even know many people who do, but given that there are (and if my understanding is wrong, feel free to correct me) several Muslim countries/polities where you'd be mobbed in the street within seconds for wearing a t-shirt with one of the Danish cartoons on it, or thrown in jail if found by the police, all of it condoned by the government...