What name did Gaius Octavius adopt when he became the first Roman emperor?

When Gaius Octavius rose to power and became the first Roman emperor, he adopted the name Augustus Caesar. This name marks a significant transformation in Roman history, as it signified his position as the revered leader of the Roman Empire, distinguishing him from the previous Republican leaders. The title "Augustus" implies grandeur and importance, reflecting his role in establishing a period known as the Pax Romana, or Roman Peace, which was characterized by stability and relative prosperity throughout the empire. This adoption of a new title was not just a personal choice; it symbolized the end of the Roman Republic and the beginning of a new era in Roman governance, where the emperor held centralized power. The other names listed, while significant figures in Roman history, do not pertain to Gaius Octavius's official title as emperor.