

I was wondering about this too. I found one reference stating that there are three different history citings with different years noting his reign (Lebor Gabala, 48-44BC; The chronology of Geoffrey Keating's Foras Feasa ar Eireann, 94-82 BC; and the Annals of the Four Masters 143-131BC). This far back in history things get blurred.
Jake, I agree. All these profiles this far back are legendary. There is no proof of any of them. The compilers are all suspect, and these three of them give different dates. There is no rational way to choose which of the three dating systems might be more correct than the others.
We should be deleting all dates from these profiles and getting a curator to lock them as blank.
I would like to label them all as fictional, but I think we need to establish a cut off point that has some reasonable basis in the sources. Some experts believe these genealogies are reliable, or at least plausible, perhaps back to about 600 -- say the time of St. Patrick. Some are willing to go a bit further, some not even close to that far back.
So, I would ask. What is a reasonable way of deciding which are fictional?