How should we handle territorial waters? (or, should we include shorelines in boundaries?)

Thanks for this deep dive – I’m not terribly surprised to see that there’s more to the story. Were any of these changes considered to be retroactive? How should we handle retroactive boundary changes? (Ohio was legally established in 1953, retroactive to 1803.)

I’m not sure & that’s a point worth clarifying. I do believe the retroactive nature of any ruling applies to legal force of any conflicts that resulted from disputes over boundaries. Not sure it should change how things are mapped. I can see arguments either way. Should our map show the lines as best known at the time? Should we just map both and create a disputed area relation?