Pax Romana

Source: Adeva Herranz
The Pax Romana (literally translated as “Roman peace”) was, as you might have guessed, the 200-year period of relative peace in the Roman Empire from about 27 B.C. to 180 A.D.
It began when Octavian became the leader of the Roman Empire and ushered a period of peace, prosperity, and innovation to an empire that had been plagued by civil war and bloodshed after the recent death of Julius Caesar.
In battle, Octavian defeated Lepidus as well as Marc Antony’s naval force and was thus bestowed the title of Augustus (emperor). Octavian’s own rule lasted 40 years but also laid the groundwork for the peace and stability of the Pax Romana for more than a century to come.

Source: US History
The Pax Romana saw many historic accomplishments including roads made from sand, cement, and stone that linked the vast areas of the Empire (which spanned from present-day England to Morrocco and Iraq), and allowed for the transportation of troops. A postal system was refined and granted the empire a better communication system. Aqueducts and plumbing were established to carry water to cities and farms.

Source: Wikimedia
The Pantheon was erected, and some of the finest literary minds – Horace, Livy, and Virgil among others – were honed. The period of peace not only improved Roman daily life but had resounding effects in history that still influence modern society.