The power of Genghis Khan split forty years after his death, but its “fragments” existed for a long time. This is reminiscent of the fate of Charlemagne’s empire. Are the reasons for these events the same?
The reasons for the split of both empires are the same; the formation of new peoples in the zones of old administrative systems or religions: Iran, Byzantium, Russia, China, etc.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.