This day, the 27th year BC Cr. it can be symbolically regarded as the day when the Roman Empire came into existence, because on that day the Senate proclaimed Octavian Augustus, which became the actual ruling title of that empire. Later, the title, or the name Augustus, was borne by all Roman emperors, and this was precisely their highest title, while the titles of Caesar (lat. Caesar) and emperor (lat. Imperator) were secondary and lower. The full title of Octavian (his legal name) was eventually given by the Emperor Caesar Divi Filius Augustus, with the term Imperator denoting military authority, and the names Caesar and Divi Filius being given as the son of Julius Caesar (who was meanwhile deified). In addition to being Caesar’s son-in-law and heir to the property, Octavian, that is, Augustus was with him and in a kinship relationship. Specifically, Octavian’s maternal grandmother Julia was the sister of Julius Caesar. It was precisely the connection with Caesar that accounted for the early rise of Octavian to the top of the political scene in Rome (he became part of the ruling triumvirate as early as the age of 20). At the time of the aforementioned proclamation of Augustus, Octavian was 35 years old. He then ruled the Roman Empire for 40 years, until his death in 14 AD.