The question in the title of this blog post was one that I attempted to answer in a recent livestream where I was a guest on The Prehistory Show with Michael Bott and Rupert Soskin, 'The Prehistory Guys'.
It has long been my contention that SOME Irish myths, especially those pertaining to the great monuments of Newgrange, Knowth and Dowth (known collectively as Brú na Bóinne), contain information describing the function of those monuments - information that could NOT have been known in the Middle Ages, when these myths were written down in Christian monasteries.
Our discussion investigated specific myths - such as the Dindshenchas of Bóinn, in which I think the winter solstice illumination of Newgrange is clearly described in mythological and symbolic terms, and stories about fulacht fia or cooking sites - which are almost exclusively dated to the Bronze Age.
It is always a great pleasure to chat with The Prehistory Guys. I hope you enjoy our conversation, which you can watch in the above embedded YouTube video.