This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
A century after the Qin destruction of 213 and 212 BCE, the scholar-official Dong Zhongshu rose to prominence under Emperor Wu of the Han dynasty and is traditionally credited with persuading the emperor, around 136 BCE, to make Confucianism the unifying ideology of the Han empire. Non-Confucian scholars were dismissed from government service, the five Confucian Classics became the core of official education, and an imperial college was founded to train officials in them.
Dong's own standing with Emperor Wu was never as settled as the decree credited to him suggests; he was imprisoned and nearly executed over writings the court judged seditious, a precarious position for the man traditionally remembered as the architect of Confucian orthodoxy. The institutional dominance later accounts compress into a single decree, including the examination system and the annual recommendation of officials that came to staff the Han bureaucracy, in fact solidified gradually over decades rather than arriving in one edict around 136 BCE.
What the reversal from Qin's destruction to Han's establishment changed for Confucianism's spread was standing itself: a philosophy that had been targeted for suppression a century earlier became the empire's own state orthodoxy, and it reached that position entirely within China, through court politics and slow institutional change rather than through any expansion beyond the borders where Confucius had first taught in Lu.