Moreover, the definition of the species and that of the genus are applicable to the primary substance, and that of the genus to the species. View in context Moreover, the goods and merchandise for the Indian trade ought to have brought three times the amount for which they were sold.
The answer most often given is about 500 years, or from 31BCE - 476CE. The ending of the Roman Empire is just an arbitrary date, usually the year of the first sacking of Rome by barbarians. However, Roman emperors still continued to rule for many years after this. In addition, the Eastern Roman Empire continued for almost another thousand years. The Roman Empire.
The Roman Republic was gone. In its place, the government was now a dictatorship, under the leadership of an emperor. The first Roman emperor was Augustus, the adopted son of Julius Caesar. He was emperor for 45 years. This was the beginning of the Pax Romana or Roman Peace. This is a very misleading title. There wasn't really peace. Rome continued to expand the empire, mostly through conquest. Rome itself was still beset by criminals and sometimes riots. It is called the Pax Romana because the empire itself was stable. The people knew that there was an emperor to run things and Roman legions to take care of wars and riots. They didn't have to worry about somebody coming in and conquering Rome and destroying their beautiful city.