Explicit reference to a military bodyguard as praetorian
62 BCE
Reign of Augustus
27 BCE - 14 CE
Establishment of the praetorian guard
27 BCE
Tacitus rate of pay: 730 denarii annually (2 denarii a day)
14 CE
Sejanus united the separate cohorts of the guard within the castra praetoria (a fortress)
23 CE
Sejanus suspected of a plot and removed from his position and executed on the emperor’s orders
31 CE
Reign of Tiberius
14 - 37 CE
Reign of Caligula
37 - 41 CE
Assassination of Gaius (Caligula)
41 CE
Reign of Claudius
41 - 54 CE
Claudius attacked by a mob
51 CE
Reign of Nero
54 - 68 CE
Pisonian Conspiracy
65 CE
Year of the 4 Emperors
69 CE
Flavian Dynasty
69 - 96 CE
Reign of Titus
79 - 81 CE
Reign of Domitian
81 - 96 CE
Nerva-Antonine Dynasty
96 - 192 CE
Reign of Nerva
96 - 98 CE
Reign of Trajan
98 - 117 CE
Reign of Hadrian
117 - 138 CE
What happened in 97 CE?
The sources reveal that a praetorian revolt forced Nerva to acquiesce in the punishment of those who had killed Domitian; he also adopted Trajan
Reign of Antoninus Pius
138 - 161 CE
Reign of Marcus Aurelius
161 - 180 CE