Roman Empire timeline
The Roman timeline spans from the legendary founding of Rome (753 BCE) through the Roman Kingdom (753–509 BCE), the Republic (509–27 BCE), and the vast Roman Empire, which split into Western (ending 476 CE) and Eastern (Byzantine, ending 1453 CE) halves, leaving immense cultural and legal legacies. Key periods include the Republic's expansion, the transition under Augustus (27 BCE), the Pax Romana (27 BCE-180 CE), the Crisis of the Third Century, and the empire's final division and decline, with the West falling to Germanic tribes and the East preserving Roman traditions for another millennium.
- Principate (27 BCE – c. 284 CE): Began with Augustus; includes the "Five Good Emperors" (Nerva, Trajan, Hadrian, Antoninus Pius, Marcus Aurelius) and the Pax Romana.
- Dominate (c. 284 – 476 CE - West): Diocletian's tetrarchy and Constantine's reunification, but increasing instability.
- 753 BCE: Traditional founding of Rome.
- 49 BCE: Caesar crosses the Rubicon, starting civil war.
- 27 BCE: Augustus becomes first Emperor, starting the Empire.
- 96–180 CE: Period of the "Five Good Emperors".
- 313 CE: Edict of Milan grants religious tolerance (Christianity).
- 395 CE: Empire permanently split into East and West.
- 410 CE: Visigoths sack Rome.
- 476 CE: Fall of the Western Roman Empire.
- 1453 CE: Fall of Constantinople to the Ottomans, ending the Byzantine Empire.