Antoninus Pius - Emperor (138)

Emperor (138)

On his accession, Antoninus' name became "Imperator Caesar Titus Aelius Hadrianus Antoninus Augustus Pontifex Maximus". One of his first acts as Emperor was to persuade the Senate to grant divine honours to Hadrian, which they had at first refused; his efforts to persuade the Senate to grant these honours is the most likely reason given for his title of Pius (dutiful in affection; compare pietas). Two other reasons for this title are that he would support his aged father-in-law with his hand at Senate meetings, and that he had saved those men that Hadrian, during his period of ill-health, had condemned to death.

Antoninus built temples, theaters, and mausoleums, promoted the arts and sciences, and bestowed honours and financial rewards upon the teachers of rhetoric and philosophy. Antoninus made few initial changes when he became emperor, leaving intact as far as possible the arrangements instituted by Hadrian.

There are no records of any military related acts in his time in which he participated. One modern scholar has written "It is almost certain not only that at no time in his life did he ever see, let alone command, a Roman army, but that, throughout the twenty-three years of his reign, he never went within five hundred miles of a legion".

His reign was the most peaceful in the entire history of the Principate; while there were several military disturbances throughout the Empire in his time, in Mauretania, Iudaea, and amongst the Brigantes in Britannia, none of them are considered serious. It was however in Britain that Antoninus decided to follow a new, more aggressive path, with the appointment of a new governor in 139, Quintus Lollius Urbicus.

Under instructions from the emperor, he undertook an invasion of southern Scotland, winning some significant victories, and constructing the Antonine Wall from the Firth of Forth to the Firth of Clyde, although it was soon abandoned for reasons that are still not quite clear. There were also some troubles in Dacia Inferior which required the granting of additional powers to the procurator governor and the dispatchment of additional soldiers to the province. Also during his reign the governor of Upper Germany, probably Caius Popillius Carus Pedo, built new fortifications in the Agri Decumates, advancing the Limes Germanicus fifteen miles forward in his province and neighboring Raetia.

Nevertheless, Antoninus was virtually unique among emperors in that he dealt with these crises without leaving Italy once during his reign, but instead dealt with provincial matters of war and peace through their governors or through imperial letters to the cities such as Ephesus (of which some were publicly displayed). This style of government was highly praised by his contemporaries and by later generations.