Final answer:
After Julius Caesar's rule, Octavian (Augustus) came to power. Octavian defeated Caesar's killers, Brutus and Cassius, and then saw off a challenge from Marc Antony and Cleopatra. After their deaths, he took control of Egypt and used its wealth to restructure the Roman state.
Step-by-step explanation:
After Julius Caesar's rule, Octavian, who was also known as Augustus, came to power. This was a critical period in the history of the Roman Empire. Octavian was initially part of the Second Triumvirate alliance, together with Marc Antony and Lepidus. However, after civil war broke out within the Triumvirate, Octavian emerged victorious, having greater support from Caesar's troops. Octavian pursued and defeated Caesar's killers, Brutus and Cassius, at the Battle of Philippi. Antony formed an alliance with Cleopatra, hoping to counter Octavian's growing power.
Octavian then battled against Antony and Cleopatra's forces in the naval Battle of Actium, leading to his decisive victory. After this, the deaths of Antony and Cleopatra led to Octavian's rule over Egypt, where he utilized its wealth to restructure the Roman state. Octavian would later be known as Augustus and would become the first Roman Emperor, marking the transition from the Roman Republic to the Roman Empire.
Learn more about Octavian's Rise to Power