Todays challenge is I think a weird, and yet also completely awesome one. Maybe. I'll leave that to the people participating to decide that.
The goal of this AHC is to have 1 or more of the Mongol Hordes (It can be Genghis Khan's Empire, or any of the various hordes that fractured off of it.) be predominantly Jewish. Please list all the effects you think this would have on the Hordes and their neighbors.