Your mission is simple, have the mongols conquer as much as possible before imploding, an easy POD is to have them simply defeat the Egyptian Muslims, but be creative 
Interesting thoughts... now i ask, if the Mongols take over, lets say, most of Eurasia save Scandinavia, England, Western France, India and Indochina, and Indonesia, and the entire northern coast of Africa, but spare Arabia, what happens after they pull out/fall? Or are the butterflies too extreme at this point to tell.
Interesting thoughts... now i ask, if the Mongols take over, lets say, most of Eurasia save Scandinavia, England, Western France, India and Indochina, and Indonesia, and the entire northern coast of Africa, but spare Arabia, what happens after they pull out/fall? Or are the butterflies too extreme at this point to tell.
Uh, surely you made a mistake?
This is a very crudely made map of what i mean, anyway this could happen logically by, say, 1360?
With a few changed battles in OTL it's not that difficult for that to be a reality. However areas such as Constantinople, the Balkans and Iberia could all prove very difficult for the Mongols. Constantinople was still one of the most impenetrable cities in the world at this time, the Balkans are extremely mountainous and don't lend well to steppe warfare and Iberia has an extremely excessive amount of Castles and fortresses.
Why the tiny France not under mongols?
Because the Mongols had limits, too. To be honest, I'm not sure if it's plausible for them to legit control all of the known world, but...
Why the tiny France not under mongols?