Romciv final exam By facebooker_761674362328036 42 BCE Brutus and Cassius defeated at Philippi by Octavian and Antony. 31 BCE Battle of Actium Period: 31 BCE to 476 Roman Empire 27 BCE Octavian hands back all power to the Senate. 27 BCE Senate bestows title Augustus on Octavian. Period: 27 BCE to 68 Julio-Claudian dynasty (Augustus to Nero). 9 CLADES VARIANA and end of major Roman expansion. 14 Death of Augustus. Period: 43 to 74 Conquest of Britain. 69 Year of four emperors.