Augustus, 27 BC - 14 AD

Augustus (23 September 63 BC – 19 August 14 AD) was the founder of the Roman Empire and its first Emperor, ruling from 27 BC until his death in AD 14. He was born Gaius Octavius into an old and wealthy equestrian branch of the plebeian Octavii family. His maternal great-uncle Julius Caesar was assassinated in 44 BC, and Octavian was named in Caesar's will as his adopted son and heir. He, Mark Antony, and Marcus Lepidus formed the Second Triumvirate to defeat the assassins of Caesar.

The reign of Augustus initiated an era of relative peace known as the Pax Romana (The Roman Peace). The Roman world was largely free from large-scale conflict for more than two centuries, despite continuous wars of imperial expansion on the Empire's frontiers and one year-long civil war over the imperial succession. Augustus dramatically enlarged the Empire, annexing Egypt, Dalmatia, Pannonia, Noricum, and Raetia; expanding possessions in Africa; expanding into Germania; and completing the conquest of Hispania.