Final answer:
Kublai Khan's rule over the Mongolian Empire led to territorial expansion and the establishment of a strong centralized government but also marked the start of decline and fragmentation. He was unable to maintain a unified Mongolian Empire and keep the robustness of the steppe people intact.
Step-by-step explanation:
Under the rule of Kublai Khan, the Mongolian Empire underwent significant political and cultural changes. Kublai Khan is best known for his conquest of China and the establishment of the Yuan dynasty in the 1270s. His reign not only led to territorial expansion but also resulted in a strong centralized government, promoting a closer bond between the Mongol rulers and their subjects. However, the underbelly of his reign saw a decline of the robustness of the steppe people and a lessening production of wealth.
Moreover, Kublai Khan's rule marked the fragmentation of the Mongol Empire as political instability crept in, and Mongols' power on steppe dwindled. His reign saw the end of an era of a unified Mongol Empire and a single khan dominating all territories. Although his reign marked a period of territorial expansion and established a strong centralized government, it also led to a substantial period of decline and fragmentation in the Mongolian Empire with rivalries claiming more power for themselves.
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