Just as geographers, O Socius Senecio,1 crowd on to the outer edges of their maps the parts of the earth which elude their knowledge, with explanatory notes that ‘What lies beyond is sandy desert without water and full of wild beasts,’ or ‘blind marsh,’ or ‘Scythian cold,’ or ‘frozen sea,’ so in the writing of my Parallel Lives, now that I have traversed those periods of time which are accessible to probable reasoning and which afford basis for a history dealing with facts, I might well say of the earlier periods ‘What lies beyond is full of marvels and unreality, a land of poets and fabulists, of doubt and obscurity.’
