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 Empire. Naturally the most obvious achievement of the Romans was their vast empire, which spread over three continents. It lasted for a long, long time. From 625 BC to AD 476 = 1101 years ! - And if one includes the eastern Roman empire which lasted until AD 1453 it would even be 2078 years ! In comparison the United States of America only exists since 1776 - less than 250 years.