At the end of the Three Kingdoms period, many heroes Hao Jie died one after another, which led to the gradual dominance of the Wei state, and many years later Sima Yi gradually regained power and prestige in the Wei court. Then he tried every means to launch a rebellion in order to make his descendants emperor, at this time, why did a group of Cao Cao's veteran generals and courtiers stand by and not stop it? Was it because they hated Cao Cao or didn't dare to provoke Sima Yi? Let's talk about it in detail next.
During the period from the Eastern Han Dynasty to the Western Jin Dynasty, it belonged to the period of great chaos of the warlords in ancient China, which lasted until 220 AD, when it was gradually quelled, and then Cao Cao's son Cao Pi officially ascended the throne as emperor, and since then the Han Dynasty has been changed to the Wei Dynasty. Although the Cao family was still the emperor, the real power was in the hands of Sima Yi.
It is said that Cao Cao never trusted Sima Yi in that year, which led to a gap between the two sides, and later Sima Yi, who was more than seventy years old, dragged the old, weak, sick and disabled body to plan the "Gaoping Tomb Change", when the Wei Emperor Cao Shuang was worshipping his ancestors with his brother Cao Fang in the ancestral tombs, and could not rush back, so it led to Sima Yi's three thousand rebels successfully invading the palace and then controlling everything.
In fact, at the time of the rebellion, the Wei Dynasty had a group of cao cao's veteran generals and subjects watching, such as Cao Rui, Empress Guo and others who had a lot of influence in the dynasty, but no one dared to stand up to Sima Yi.
The root cause of this has to start from the era when Cao Cao was in power, when the imperial sergeant clan was very powerful and mutually exclusive, Cao Cao rewarded and punished clearly in the employment of people, specially selected loyal talents, and rarely appointed aristocratic officials promoted through various relationships, so many people gradually moved closer to Sima Yi's side, when Sima Yi was the leader of the noble clan and had great power in the DPRK. When Cao Cao died, the shi faction in the imperial court tore its face, and then The developing Sima Yi led the officials to openly rebel, and eventually crushed the other shi clans.
It can be said that this was an infighting in the imperial court, not committed by Sima Yi alone, including the interests of officials of all sizes, and even some royal relatives sided with Sima Yi. Another reason is that when Cao Shuang became emperor, he began to use nepotism, excluding officials of other clans, and only appointing people from his own clan, so many people gradually became dissatisfied with Cao Shuang, and thus supported Sima Yi in turn.
When Sima Yi rushed into the palace with only three thousand soldiers, in fact, there were many generals who had the ability to stop him, but his relationship was too complicated, and he was involved in the whole body, and there were many interests of many officials in it, and more importantly, most of them had the same goal, that is, they hoped to get Cao Shuang down so that they could be promoted in the future.
When things reached this point, Cao Shuang also felt helpless, he knew that his clan power was far more powerful than Sima Yi, and the other side's personnel had long infiltrated the large and small positions of the imperial court, and the entangled elements could not be eliminated at all, which was to blame Cao Cao's decision that year.
At the beginning, Cao Cao deliberately cultivated a large number of talents from poor backgrounds to become officials, and his cronies were all these Han men and some descendants of the Cao clan, so most of the other rich and powerful officials from famous and prestigious families had already attached themselves to Sima Yi's side, and then formed the so-called "famous disciples".
Later, history developed into the Cao Pi period, at this time Cao Cao promoted almost all the generals left, and their descendants were ostracized by the rich warrior clan and could not become any high officials, so Sima Yi became more and more arrogant. By the time Cao Shuang became emperor, several of the officials in the imperial court were all sima Yi's concubines, and there were already very few people in the Han men clan.
In the end, Sima Yi took advantage of Cao Shuang's absence from the palace to easily launch a rebellion, at which time the imperial court officials were almost all on sima Yi's side, even if Empress Guo, Cao Rui and others wanted to oppose, they were always outnumbered, resulting in the transfer of the Cao throne to the Sima family.