Here's an interesting AHC. With a post-1750 POD, have the 2015 China of TTL be about as similar (culture, values, government, people, landscape...) to the China of 1750 as the 2015 United Kingdom of OTL is similar to 1750 Great Britain. You can define that however you want.
Lots of bonus points if China still has around the same geopolitical role it has IRL.
Lots of bonus points if China still has around the same geopolitical role it has IRL.