Why did Julian’s attempt to restore paganism have little lasting effect?

Julian’s attempt to restore paganism as the official religion of the Roman Empire had little lasting effect primarily because his reign was short-lived, lasting only 20 months before his death in 363 CE. His policies, which included the suppression of Christianity and the promotion of a pagan hierarchy, failed to gain deep traction and ultimately demonstrated that paganism as an organized religion was already in decline.12

Several factors contributed to the failure of his religious agenda:

• Lack of Popular Support: While Julian’s enthusiasm for Hellenic culture resonated with some intellectuals, his priggish austerity and fanaticism alienated both Christians and many pagans.12
• Hostility and Resistance: His policies, such as banning Christians from teaching classical literature and removing them from high-ranking positions, created significant fear and hatred among the Christian population, who viewed him as an antagonist.12
• Institutional Momentum: Christianity had already become deeply embedded in the empire’s social and political structures under his predecessors, making a reversal difficult.12
• Succession: His successor, Jovian, was a Christian who restored religious tolerance, effectively ending Julian's efforts to institutionalize paganism.1