"Arguably they fell apart because they picked up so many scripts and cultural and religious influences the different types of Mongols could no longer communicat

"Arguably they fell apart because they picked up so many scripts and cultural and religious influences the different types of Mongols could no longer communicate or tolerate one another. " Interesting thought and it certainly had influence, but I would argue that the trope that one strong ruler conquers a big kingdom, but it doesn't stay united, because his heirs cannot settle on the next great king, is a quite common and often repeated one.