The two hundred years of roman peace (30 b. c. – a. d. 235) is called

The two hundred years of Roman Peace (30 B.C. – A.D. 235) is called Pax Romana.

Explanation:

Pax romana is an expression in Latin used to refer to the long period of stability that lived the Roman Empire, characterized by both its inner calm and its external security, which allowed it to reach its maximum economic development and territorial expansion. This period was developed approximately between the fourth civil war and the crisis of the third century. In ancient times it was called Pax Augusta, a name also used nowadays, because this period began immediately after Augustus began to govern.

Unlike the previous periods of relative calm in Ancient Rome, the effects of the Pax Romana were decisive and lasting, as it ensured the development of the civilization that Rome had established around the Mediterranean, while achieving the assimilation of the "barbarian" territories and conquered populations and with it the expansion and acceptance of its administration, the Roman law and its moral and material values.

they both built pyramids.