231

Year 231 (CCXXXI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Claudius and Sallustus (or, less frequently, year 984 Ab urbe condita). The denomination 231 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Roman Empire

 * Emperor Alexander Severus accompanies his mother Julia Mamaea to Syria, and campaigns against the Persians. Military command rests in the hands of his generals, but his presence gives additional weight to the empire's policy.

China

 * March–August – Battle of Mount Qi: The Chinese state of Shu Han gains a tactical victory, and the state of Cao Wei a strategic victory.

Religion

 * Origen, disciple of Ammonius Saccas, founder of Neoplatonism, is exiled in Caesarea.

Births

 * Cao Xun, Chinese prince of the Cao Wei state (d. 244)

Deaths

 * Cao Zhen, Chinese general of the Cao Wei state
 * Li Hui (or De'ang), Chinese official and politician
 * Zhang He, Chinese general of the Cao Wei state