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.
History >> Ancient Rome For the first 500 years of Ancient Rome, the Roman government was a republic where no single person held ultimate power. However, for the next 500 years, Rome became an empire ruled by an emperor.