The long reign of the emperor Antoninus Pius is often described as a period of peace and quiet before the storm which followed and plagued his successor, Marcus Aurelius. In addition to the relative peacefulness, this emperor set the tone for a low-keyed imperial administration which differed markedly from those of his two immediate predecessors, Trajan and Hadrian. Antoninus managed to govern the empire capably and yet with such a gentle hand that he earned the respect, acclaim, and love of his subjects. Antoninus Pius died in March of A.D. 161, after giving the appropriate imperial watchword which so typified his reign, "equanimity". He was soon afterward deified by the Senate.
RI2. Denarius. ANTONINVS AVG PIVS P P TR P XXIIII, laureate head right / FELIC SAEC COS IIII, Felicitas standing left, holding caduceus & leaning on short column. RSC 361. RIC 309