AHC: "Hungary-like" Sichuan

Regarding Hungary, my understanding is that post-Roman Pannonia (and Eastern Hungary) had a very high diversity of groups present (Langobards, Ostrogoths, Slavic groups, Avars, and many more) even by the standards of the Migration Era, and that's probably a good set of conditions for the language of whoever the earliest Hungarian speakers were (probably a long standing group from the rough zone of the Volga River) to take a place of prominence as a lingua franca and become common that way (they'll seek to recruit others who have no tongue in common and that way the language will be more likely to spread across barriers).

So you may be more interested in trying to replicate that kind of scenario than having simply one homogenous (but small and from far away) group spread their language to a single much larger population, where the most likely scenario is probably linguistic assimilation by the incoming folk.
So maybe the trick is to throw all the ethnicities I listed on the mix and have one of them win out in the linguistic battle royale? On a more serious note if the population decline that rfmcdonald described was actually even remotely as dramatic it could mean that some pastoral group could establish itself and seize some lands for pastures creating a good basis for a parallel ethnic group that could assimilated the local farmers eventually, not sure if the local geography would allow this.
 
I would think it would be relatively easy for this to happen during the Yuan dynasty. Perhaps have a rebellion happen in the region and once it gets stamped out they settle Mongolians in the region to repopulate and keep it under control.
 
I would think it would be relatively easy for this to happen during the Yuan dynasty. Perhaps have a rebellion happen in the region and once it gets stamped out they settle Mongolians in the region to repopulate and keep it under control.
I heard a claim that the mongol seized land from farmers in Northern China, I wonder how true that is and on what scale that happened.
 
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