Events

• Roman Emperor Antoninus Pius starts a new war against the Parthians
• Pope Anicetus succeeds Pope Pius I
• First year of Yongshou era of the Chinese Han Dynasty

Births

• Dio Cassius, Roman historian
• Cao Cao, future ruler of the Kingdom of Wei

Deaths

• July 11 - Pope Pius I
• Saint Polycarp of Smyrna (martyred)