The Roman Empire was founded in 27 B. C. by

Question

Accepted Answer

The correct option is 3:
The Roman Empire is traditionally considered to have begun in 27 B.C. when Octavian, the adopted son of Julius Caesar, was granted the title "Augustus" (meaning 'revered one') by the Roman Senate. This moment marked the end of the Roman Republic and the formal establishment of the Principate, the first phase of the Roman Empire. Augustus consolidated political power, reorganized the military, and initiated a long period of relative peace and stability known as the *Pax Romana*. His reforms and authority cemented his role as the first and foundational Roman Emperor, transforming Rome from a republic into an imperial state.

The incorrect option is 1: Constantine was a Roman Emperor who lived centuries later (r. 306–337 AD). He is most famous for legalizing Christianity within the empire and founding the city of Constantinople, not for establishing the empire itself.

The incorrect option is 2: Diocleshean (Diocletian) was an emperor who reigned from 284–305 AD. He is known for establishing the Tetrarchy (rule by four) to manage the vast empire and for the last great persecution of Christians, which occurred long after the empire’s founding.

The incorrect option is 4: Justinean (Justinian I) was a key figure in the Eastern Roman (Byzantine) Empire (r. 527–565 AD). He is famous for reconquering lost Western territories and, most significantly, for compiling the *Corpus Juris Civilis* (Justinian's Code), a major body of Roman law, approximately five centuries after Augustus established the empire.