I don't think this will go down very well in the western hemisphere...
View attachment 680924
It appears Washington is now a city-state!
I've never seen this before, but suspect that rather than a bug it's a "feature" of Barbarian Camps. There is an unusually large number of extant city-states in this game, and I'm guessing that all genuine city-state names have been taken, so the latest camp to evolve into a vity-state has taken the capital of an unused civ in the game. For info, you can sent a trade route to it, but not an envoy.