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Pax Romana Timeline

(27 BCE - 180 CE)

The Pax Romana, meaning 'Roman Peace,' was a long period of relative stability, minimal expansionist warfare, and flourishing trade, culture, and infrastructure throughout the Roman Empire. Initiated by Emperor Augustus after decades of civil war, it lasted roughly two centuries and allowed Rome's population to grow, its cities to prosper, and its laws and roads to knit the Mediterranean world together. Less

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Decline and Legacy

Reign of Commodus ends the golden age of the empire

Jan 1, 180 - Dec 31, 192

According to Cassius Dio, the dictatorial reign of Commodus marked the turning point after which Rome descended 'from a kingdom of gold to one of iron and rust,' ending the long era of stability that had defined the Pax Romana.

Image source: Commodus

Reign of Commodus ends the golden age of the empire

Death of Commodus triggers dynastic collapse

Dec 31, 192

The assassination of Commodus ended the Nerva-Antonine dynasty and plunged Rome into succession chaos. Cassius Dio regarded Commodus's dictatorial reign as the pivotal moment when Rome descended from a kingdom of gold to one of iron and rust.

Year of the Five Emperors

Jan 1, 193 - Dec 31, 193

Following Commodus's assassination, five different men claimed imperial power in a single year, triggering civil war. Cassius Dio cited this turmoil, following the dictatorial rule of Commodus, as evidence of Rome's descent from gold to iron and rust.

Image source: Year of the Five Emperors

Year of the Five Emperors

Crisis of the Third Century begins

Jan 1, 235

The Crisis of the Third Century brought near-collapse to the Roman Empire through civil war, invasion, plague, and economic instability. Cassius Dio's metaphor of Rome's descent 'from a kingdom of gold to one of iron and rust' encompassed this catastrophic era.

Image source: Crisis of the Third Century

Crisis of the Third Century begins

Crisis of the Third Century ends with Diocletian

Jan 1, 284

Diocletian's accession and reforms brought the Crisis of the Third Century to a close, ending the half-century of turmoil that Cassius Dio's 'iron and rust' metaphor came to symbolize as the aftermath of the Pax Romana.

Image source: Diocletian

Crisis of the Third Century ends with Diocletian

Historiography

Dante's writings on universal imperial peace

Jan 1, 1300 - Dec 31, 1321

Dante wrote on the ideal of universal peace under a single monarch, an idea rooted in the memory of the Pax Romana. His works on the topic were later analyzed at the beginning of the twentieth century by William Mitchell Ramsay.

Image source: Dante Alighieri

Dante's writings on universal imperial peace

German Empire's imperial peace of 1871

Jan 18, 1871

As an example of internal imperial peace, the German Empire's imperial peace of 1871 over its internal components such as Saxony slowly evolved into the later unified German state, paralleling how Rome imposed internal peace on conquered peoples.

Ramsay publishes The Imperial Peace: An Ideal in European History

Jan 1, 1913

At the beginning of the twentieth century, William Mitchell Ramsay analyzed Dante's works on the theme of universal peace in his book The Imperial Peace: An Ideal in European History (1913), tracing the ideal of the Pax Romana through European intellectual history.

Image source: William Mitchell Ramsay

Ramsay publishes The Imperial Peace: An Ideal in European History

Ryberg publishes study dating the third closure of the Janus gates

Jan 1, 1949

Inez Scott Ryberg published her influential 1949 study persuasively dating the third, undocumented closure of the Gates of Janus to 13 BC, linking it to the commissioning of the Ara Pacis under Augustus.

Image source: Inez Scott Ryberg

Ryberg publishes study dating the third closure of the Janus gates

Stern confirms dating of the third closure to 13 BC

Jan 1, 2006

Gaius Stern, building on the work of Inez Scott Ryberg, published research in 2006 that persuasively dated the third closure of the Gates of Janus to 13 BC, reinforcing the connection between that event and the Ara Pacis.

Eckstein contrasts Pax Romana with Republican-era warfare

Jan 1, 2007

Eckstein argued that the Pax Romana must be understood in contrast to the much more frequent warfare of the third and fourth centuries BC under the Roman Republic, reframing the debate about when the peace truly began.

Madden explains the traditional 27 BC starting date

Jan 1, 2008

Thomas Madden explained that the traditional dating of the Pax Romana to 27 BC reflects a choice to avoid the civil wars of the first century BC, even though deeper origins of the peace lie earlier.

Image source: Pax Romana

Madden explains the traditional 27 BC starting date

Key Facts

  1. The Pax Romana began when Augustus became the first Roman emperor in 27 BCE, ending decades of civil war.
  2. It spanned approximately 200 years, from the reign of Augustus to the death of Emperor Marcus Aurelius in 180 CE.
  3. During this era, the Roman road network expanded dramatically, facilitating trade, communication, and military control across the empire.
  4. The period saw the rise of Christianity, which spread throughout the Roman world despite periodic persecutions.
  5. Emperors known as the 'Five Good Emperors' (Nerva through Marcus Aurelius) presided over much of this era, marked by effective governance and succession through adoption.

Source

This Pax Romana timeline was generated with the help of AI, using information found on the internet.

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