276
| 276 • Florianus becomes Roman Emperor; he breaks off his campaign against the Heruli and marches from the Bosporus with support from the Roman legions in Britain, Gaul, Spain and Italy to fight an indecisive battle with Marcus Aurelius Probus in Cilicia. |
320
Age: 44y
| 320 • Old St. Peter's Basilica, Rome, is started to be built (approximate date). |