Over the last generation, we've had a bunch of what was assumed to be fiction confirmed. Eric the red's voyage and viking visits to North America. All sorts of very old biblical narratives are being confirmed, the existence of early iron age kings and conflicts, for example, are being confirmed by archeology. Troy, and the possible historical conflict with the Greek aegeans... Also from the bronze)iron age transition period.
It's like a swing. Modern historians worked hard to get rid of all the bible-based histories. A few generations later, the Bible (and lots of other old books and oral traditions) is a surprisingly reliable source... as are folk legends.
Noah's flood is as legitimate as it has been for 100 years. Searching for Atlantis is as non-crazy as it has been for even longer. Some aboriginal Australian oral histories are now thought (by some) to be incomprehensibly, mind boggingly old...
I'm still hoping for confirmation of at Brendan the voyager.