蔡邕
In the autumn of 178, the scholars were asked for advice on recent ill omens. Cai Yong responded with criticisms of eunuch pretensions. The eunuchs learnt of the attack, and accused Cai Yong and his uncle Cai Zhi of extortion. They were thrown into prison and sentenced to death, but the sentence was later remitted to exile in the northern frontiers. Nine months later, he cited to the throne that his work on the dynastic history and classics were at risk from enemy raids, and was allowed back to the capital. However, he offended the sibling of an influential eunuch during a farewell banquet before his return, which put his position in the capital at risk. Cai Yong fled south to Wu () and Kuaiji commanderies and stayed there for 12 years.