Antoninus Pius

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Definition

Antoninus Pius was Roman emperor from 138 to 161 CE. When Roman emperor Hadrian (r. 117-138 CE) died on July 10, 138 CE, he left, as did his predecessors, an adopted son as his successor, Antoninus Pius. Antoninus - whose last name means dutiful - was a just and compassionate man, well-liked and respected by the common people as well as those in the Roman government. For the next 23 years, his reign (second only in length to Augustus) would be one of relative peace, assuring him a place among the Five Good Emperors.

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