What time period was the least reliable for narration?
As far as writers and authors writing their near past from around 20 to 150 years before them, what time period and region had the largest amount of mythic and or obviously fallacious writings, either from a point of propaganda or rumors just being accepted as facts. Please do avoid holy texts which still exist in responses but I would still love to hear if there were periods where a faiths post book folk miracles were being written down seemingly too often (folk saints, wandering sages, king sees a sign from god, etcetera).