The War That Made the Roman Empire: Antony, Cleopatra, and Octavian at Actium

Following Caesar's assassination and Mark Antony's defeat of the conspirators who killed Caesar, two powerful men remained in Rome—Antony and Caesar's chosen heir, young Octavian, the future Augustus. When Antony fell in love with the most powerful woman in the world, Egypt's ruler Cleopatra, and thwarted Octavian's ambition to rule the empire, another civil war broke out. In 31 BC one of the largest naval battles in the ancient world took place—more than 600 ships, almost 200,000 men, and one woman—the Battle of Actium. Octavian prevailed and subsequently defeated Antony and Cleopatra, who eventually committed suicide.
The Battle of Actium had great consequences for the empire. Had Antony and Cleopatra won, the empire's capital might have moved from...