| Prior to 2001, he served as President and a director of private companies in the oil and gas sector, namely, Hadrian Energy Corp. |
| Hadrian himself had worshipped at the ancient shrine of the Eleusinian mysteries in Greece and a variety of mystery religions became respectable and accepted. |
| The first two are images of Hadrian and a detail of the gorgoneion, the third is of Septimus Severus. |
| The Antonine emperors are easily identified through their adoption of the portrait style of Hadrian with curly hair and beards. |
| With Hadrian we see the first steps toward a system of frontier garrison troops, permanently stationed, along with a field army that gets moved from one hot spot to another. |
| At this point Pope Hadrian I defended the doctrine of procession through the Son against Charlemagne. |
