RULERS EVENTS 27 BCE-14 CE Augustus, first Roman emperor 14-37 Tiberius 98-117 Trajan 117-38 Hadrian 193-211 Septimius Severus 241-72 reign of Shapur I in Iran 253-68 Gallienus 284-305 the ‘Tetrarchy’; Diocletian main ruler 312-37 Constantine 309-79 reign of Shapur II in Iran 408-50 Theodosius II (compiler of the famous ‘Theodosian Code’) 490-518 Anastasius 527-65 Justinian 531-79 reign of Khusro I in Iran 610-41 Heraclius 27 BCE ‘Principate’ founded by Octavian; now calls himself Augustus c. 24-79 Life of the Elder Pliny; dies in the volcanic eruption of Vesuvius, ...