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O livro é Roma Eterna , de Robert Silverberg.
The novel is presented as a series of vignettes over a period of about 1500 years, from 1282 ab urbe condita (AD 529) to 2723 AUC (AD 1970). Most of the story-chapters involve Roman politics, either the competition between the Western and Eastern Empires to dominate the other or the violent creation of the Second Roman Republic in about 2603 AUC (AD 1850). Others describe the first Roman circumnavigation of the world and unsuccessful attempts to conquer Nova Roma (North America).