The Xiping Stone Classics, completed in 183 under the direction of Cai Yong, provided a permanent, standardized canon of Confucian texts for future scholars. This massive undertaking to preserve the integrity of the classics defined his role as a central intellectual figure during the Eastern Han dynasty, spanning his work as an astronomer, musician, calligrapher, and politician.
Scholarship and Early Court Service
Born in 133 in Qi County, Cai Yong descended from a prominent family known for maintaining ancestral property for three generations. After the death of his father, Cai Leng, he remained dedicated to his mother until her passing, subsequently studying under Hu Guang. His reputation for literary skill eventually led to a government appointment in the capital. As a consultant, he was frequently commissioned to draft official inscriptions and memorials, utilizing his expertise in astronomy, mathematics, and music.
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Cai Yong frequently advocated for the restoration of traditional ceremonies and openly opposed the rising influence of court eunuchs. Following his criticism of these officials in 178, he and his uncle, Cai Zhi, were imprisoned and sentenced to death. This was commuted to exile in the northern frontiers. He later fled south to the Wu and Kuaiji commanderies, where he remained for 12 years to avoid further political persecution.
Final Years under Dong Zhuo
In 189, the warlord Dong Zhuo seized control of the government and summoned Cai Yong to Luoyang under threat of clan extermination. Appointed as Left General of the Household, he focused on revising ritual practices. Following Dong Zhuo’s assassination by Wang Yun in 192, Cai Yong was imprisoned for expressing public grief over the warlord’s death. Despite pleas from officials to allow him to complete his historical work, Wang Yun denied the request, and Cai Yong died in prison later that year.
Enduring Intellectual Contributions
While many of his personal papers were lost in the decade following his death, his protégé Wang Can ensured the preservation of his major works. His recorded contributions include the compilation of the Dongguan Hanji, the treatise Duduan on ceremonial, and various technical writings on pharmacology and the guqin. His influence extended to his family, notably his daughter, the poet and musician Cai Yan.
Fast facts
- Born: 0133, Qi County
- Died: 0192, Chang'an
- Primary occupations: Astronomer, writer, politician
- Notable project: Xiping Stone Classics
- Notable daughter: Cai Yan (Wenji)
- Cultural significance: Protagonist in the 14th-century play Tale of the Pipa
- Religion: Confucianism
Questions readers ask
What were the Xiping Stone Classics?
They were the Five Classics engraved in stone, commissioned by Cai Yong and approved by Emperor Ling in 175 to prevent the alteration of Confucian texts.
Why was Cai Yong executed?
He was imprisoned and died after the fall of Dong Zhuo for allegedly expressing grief at the warlord's death, which his political opponents, specifically Wang Yun, viewed as evidence of treason.
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