The setting of the book by the famous Italian paleontologist, television journalist and writer Alberto Angela is the entire Roman Empire of the era of Trajan. How did they live at that time? What kind of people would we meet in its cities? How did the Romans manage to create such a grandiose state, uniting such different peoples? Traveling through the vast expanses of the great Roman Empire following the sestertius with a portrait of Emperor Trajan, minted in its very heart - Ancient Rome, the author will take his readers to the remote corners of the empire during the reign of one of the " five good emperors."