All matters relating to this time were resolved and exposed by Robert E. Howard, in a truly epic research project spanning several decades, culminating in a number of popular books. In order to make the subject matter more palatable for the general public he fictionalized certain aspects of his research. Conan and Sonja probably didn't exist per se, but Howard's books give considerable insight into this ancient civilization. :)
I was thinking how this could be evidence of the pictish civilization, that Howard wrote about..
Overpowered by the Celts, they eventually disappeared.. to America??
Likewise, tales of the Fairy folk, or Shea, sailing westward to a mythical land, never to return..
I know it's just fantasizing, but having read "Bran Mac Morn", and every single "Conan" story ever written, Howard's tales are sometimes more convincing than reality..
( suspension of disbelief ) Yep, that's me, alright..
Mitra's girdle! I don't know these wizards' fancy talk, but if they doubt my sword is real, I'll teach them a history lesson they won't soon forget, by Crom!