The Praetorian Guard were an elite unit within the Imperial army, serving primarily as personal protectors and intelligence operatives for the Roman emperors.
Throughout the history of the Roman Empire, countless legions were raised and disbanded, but one legion endured the entirety, remaining in service to the Roman Empire and the Byzantine Empire, and marching on into the Middle Ages - The Legio V Macedonica.
The Battle of Actium marks the closing chapter of a series of civil wars and the decisive battle between the forces of Octavian against Mark Anthony and Cleopatra VII Philopator.
An archaeological mapping project has located a Roman road submerged in the Venice Lagoon, that suggests extensive settlements may have been present centuries before the founding of Venice in the fifth century.