155

Roman Empire

 * starts a new war against the ns who are led by Vologesus. The war is brief and results in an inconclusive peace.
 * Rome states that while it will not be recognized as an official religion, must be tolerated.
 * To restore peace between the and Romans, Antoninus relegalizes circumcision.
 * The Romans begin to abandon.

Asia

 * First year of Yongshou era of the Chinese.

Religion

 * succeeds as the eleventh.
 * The bishops are in disagreement regarding the date of.

Births

 * , historian
 * , last of the
 * , governor of
 * , younger half-brother of
 * , prefect of Chenliu

Deaths

 * — Pope Pius I
 * Saint of  (martyred)