@writofcertiorari @Bennett Poland's about as questionable as the examples above, as the Poles are a specific Slavic people that didn't even exist as a distinct group until the 7th or 8th century, and definitely wouldn't exist at all if Germans settled that far east. Same with Mongolia, the Inca Empire (only formed in 1438), and arguably Japan (while it's been pretty
culturally homogenous in our history it's regularly been divided into a Holy Roman Empire-like mess and was saved from invasion only by luck)
There's also the problem of India, a region as diverse as Europe if not more that only exists as a single country (and not even really that when you consider Pakistan and Bangladesh) thanks to centuries of British rule and exploitation. Making India one country needs a good justification, and I'm not really seeing one.
China has existed continuously for thousands of years, but I doubt that it would expand the way writ has it in their map. If you look at maps of the Chinese dynasties, you'll notice that they all have essentially the same size and shape, and it's only in the last few hundred years that it's expanded as much west and north as it has. This is because China's always been a hegemonic empire, leaving local rulers on their thrones in exchange for tribute and other favors while remaining content in their developed cities and farms rather than going off to try to settle new land.