Answer :
Final answer:
Octavian, later Augustus, ended the Roman Republic by defeating Cleopatra and Marc Antony, transitioning Rome into the Roman Empire.
Explanation:
Octavian, later known as Augustus, came to power after defeating Cleopatra and Marc Antony at Actium in 31 B.C.E., officially marking the end of the Roman Republic. He transitioned Rome into the Roman Empire, establishing himself as the first emperor.
Augustus strategically used political maneuvers to consolidate power, presenting himself as a restorer of the Republic while effectively establishing a monarchy. By the time of his death in 14 CE, the Republic had been dismantled and replaced by the Roman Empire under his rule.
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