There are many documents dating from ancient Rome (and earlier) that we don't consider historical because of their fantastic or religious nature. The set of doc

There are many documents dating from ancient Rome (and earlier) that we don't consider historical because of their fantastic or religious nature. The set of documents you refer to are self-contradictory and describe supernatural events that no other author recorded. Hell, historians take Herodotus with a grain of salt, and he was an actual historian.