90% of the current population of the Tibetan Autonomous Region is ethnically Tibetan.
Portugal didn't get a claim to half the New World, only a pretty small slice; additionally, the clue could also refer to the other side of the Treaty. surely better clue is possible
"empire" is very strong for Wu? it was after all, literally the "Three Kingdoms" period, and it kinda messed around in the bones of a former empire until it died.