What Latin term refers to a period of peace in the Roman Empire, lasting two centuries?

The term "Pax Romana" refers specifically to a remarkable period of relative peace and stability across the Roman Empire that lasted approximately 200 years, starting with the reign of Emperor Augustus around 27 BCE and extending until around 180 CE. During this time, the empire experienced limited expansion and a decrease in large-scale military conflict, which allowed for economic development, cultural flourishing, and infrastructure improvements such as roads and cities.

The significance of the Pax Romana is evident in its contributions to Roman society, including the spread of Roman culture, the enhancement of trade, and the establishment of legal systems that would lay the groundwork for future governance. It highlighted the achievements of Roman engineering and aided in the integration of conquered peoples into the Roman way of life, facilitating a unifying identity across a diverse empire.

The other terms do not capture the specific essence of this period. "Imperium Romanum" refers generally to the Roman Empire itself, suggesting its vast territorial and political control but not specifically addressing the peace. "Novus Ordo Seclorum," which translates to "New Order of the Ages," is associated with the idea of a new beginning and is often linked to the founding principles of the United States, rather than ancient Rome. "Bellum