Hadrian Adopts Antoninus
An emperor secures Rome's golden succession
Ailing Emperor Hadrian adopted Antoninus Pius as his son and successor, following the untimely death of his first chosen heir. This act of adoption would prove one of the most consequential decisions in Roman history, inaugurating a line of philosopher-emperors known as the Antonine dynasty. Under Antoninus and his successors, the Roman Empire would experience its longest period of stability and prosperity, the age the historian Edward Gibbon called humanity's happiest.