High Level Overview of Chinese History: The Three Kingdoms Period IV
By Yu Ninjie - CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=87881
While Zhuge Liang lived, the office of chancellor controlled much of the politics of Shu, but after his death in 234, three chancellors had the office by 258, after which, political power became increasingly concentrated in the eunuch faction, leading to increased corruption. Shu also failed to have any major achievements after Zhuge Liang's death. When Wei launched a three-pronged offensive, Shu was forced to retreat, giving up 'territory formerly considered impassable' as they did. Liu Shan, the second Shu emperor, surrendered to Wei only 43 years after it was founded, and Liu Shan was made the 'Duke of Safety and Happiness', which was a 'trivial position with no actual power' by the Wei Emperor.
The Wei weren't free from court intrigue, however. Beginning in the late 230s, the tensions between the Cao and Sima clan began to show. Sima Yi, who served as general, regent, and Grand Tutor, felt threatened when Cao Shuang, who was also a general and regent, placed his supporters in key posts. The Sima clan had a lot of property and their position was further boosted by Sima Yi's military victories because he was 'an extremely capable strategist and politician'. He eventually beat Cao Shuang by putsch, a type of coup carried out by a minority group, which forced Cao Shuang's faction out of their positions of authority. Many groups, including the Seven Sages of the Bamboo Grove, a group of scholars, writers, and musicians, protested against Sima's rising power. In 260, Cao Mao was 'killed in a failed coup against Sima Zhao' and Cao Huan, the fifth Wei emperor, took the throne. Not long after, Sima Zhao died and Sima Yan became the Duke of Jin. Sima Yan was not content with his title and sought to become emperor himself. In 266, Cao Huan decided to abdicate, establishing the Jin dynasty with Sima Yan becoming Emperor Wu of Jin, 40 years after the Wei dynasty began.
Sun Liang's ascension to the throne of Wu in 252 was the beginning of a steady decline for the state. Because Sima Zhao and his grandson Sima Shi were able to suppress rebellions in the southern Huai River, the state of Wu lacked opportunities to expand their influence beyond their borders. Sun Hao, who took the throne in 264, was the fourth emperor of Wu and would be known as Emperor Mo. He'd been a 'promising young man, but upon ascension he became a tyrant, killing or exiling all who dared oppose him in court'. In 269, a Jin general began preparations to invade Wu by building a fleet of ships and training the marines that would man them. Four years after this, Lu Kang, a Wu general, died, leaving no competent successors to take his place. In 279, Sima Yan directed five simultaneous attacks along the Yangtze River while the fleet based in Sichan sailed toward the Jing Province. Wu was unable to meet the strain caused by this attack and Jianye fell in 280 and Sun Hao surrendered.
During the nearly 125 years of the Three Kingdoms period, the population of China drastically decreased from about 56,486,856 people in 156 to 16,163,863 people as the Jin dynasty reunited China in 280, or only about 35.3% of the 156 number. The battles for land between the three and with their non-Chinese neighbors accounts for some of this, with some groups using 'scorched earth' tactics, but so do the famines of the Central Plains that caused and followed the Yellow turban Rebellion. There were also likely outbreaks of diseases as government broke down, as well as people leaving China to account for some of the decrease in population.
Economically, the social unrest and natural disasters that brought about the end of the Eastern Han dynasty contributed to a 'self-sufficient manorial system' developing as the landlords and aristocrats began to establish strongholds with developed agriculture. The main currencies, starting in 221, became silk cloth and grains as worn out copper coins weren't minted into new coins centrally and while privately minted coins began to appear, but none of these became a fiat currency. The broad division of China into three primary economic markets would continue for long after the Three Kingdoms period.












