Final answer:
The term for the 200-year period of peace during the early Roman Empire is known as the Pax Romana, beginning with Emperor Augustus and ending with Marcus Aurelius.
Step-by-step explanation:
The term for the approximately 200-year period of peace during the early Roman Empire is known as the Pax Romana. This era was initiated by Augustus, the first Roman Emperor, and lasted until the death of Marcus Aurelius. The Pax Romana allowed for safe travel, trade, and the spread of culture across the vast empire. Despite the overall peace and prosperity, the period also presented challenges for certain classes and conquered peoples. The Roman Empire during this time experienced significant growth and brought forth monumental architectural and engineering achievements. Yet, the Pax Romana is remembered as a time of relative peace and stability within the empire.