Internal conflict between Genghis Khan's sons and daughters...
Apparently his sons were idiots and sloths while his daughters were cunning and resourceful and blah blah blah everything good for a leader...
When Genghis died, relatives started killing his daughters for their positions in government....
They had no unity of culture.
approximately 162 years
Well, that's certainly one long-time reason. And afaik besides that there are some other 'short-time' reasons. The mongol Empire detoriated, meaning that it slowly split up. As it was way too large to be governed effectively from Karakorum, the empire was split up: The Il-Khanate, the Golden-Horde Khanate, etc.
The death of Mongol leader Möngke Khan in 1259 marked a major turning point in the history of the Mongol Empire. The ensuing power struggle between his successors, Kublai Khan and Ariq Böke, led to a split in the empire and the beginning of a long period of division and decline. This event ultimately contributed to the fragmentation and eventual downfall of the mongol empire.
a long time
Mongol culture did not spread widely in Europe and Asia because the Mongol Empire was focused more on conquest and empire-building rather than cultural diffusion. Additionally, the Mongols were a nomadic society that did not establish long-lasting settlements in the regions they conquered. Furthermore, local populations often resisted adopting Mongol culture due to differences in language, religion, and customs.
The vast size of the Mongol Empire made long-distance travel difficult and time-consuming. Harsh climates, such as extreme cold in the north and scorching heat in the south, posed challenges for travelers. Additionally, the empire's diverse landscapes, including deserts, mountains, and grasslands, made transportation and communication challenging.
the mughal empire lasted 333 years
The Mongol Empire was founded my Genghis Khan in 1206. But Mongolia declared independence from Qing Dynasty on December 29, 1911.
The Mongols were generally tolerant toward diverse religious beliefs, as long as captured populations obeyed Mongol laws.
The Songhai Empire lasted from around 1340 to 1591.
The Songhai Empire lasted from around 1340 to 1591.