The Roman numerals you provided are:
A more plausible date interpretation is (e.g., 25 AD, 25 BC, 13 AD, 14 AD). A PDF could be a historical document or timeline covering the reigns of Roman emperors like Tiberius (14-37 AD) or Augustus (27 BC – 14 AD). xxv xxv xiii xiv pdf
If you could provide more context or details about what you're looking for (e.g., the topic of the guide, where you encountered the reference), I could offer more targeted advice. The Roman numerals you provided are: A more