“In the case of Stonehenge, I suggest that the presiding deity was a prehistoric equivalent of the Greek and Roman god of healing, Apollo. Although his main sanctuary was at Delphi in Greece, it is widely believed that he left Greece in the winter months to reside in the land of the Hyborians – usually taken to be Britain.
I hadn't heard that about Apollo, but even that aside, it does bother me a bit when other gods are referred to as "equivalents" to certain Greek and Roman gods. Yes, syncretization went around all over the ancient world, but it's a rather Graeco-Roman-centric view, in my opinion. None of these gods, even between the Greeks and Romans, were exact "equivalents." At best, they were "similar" or "not unlike." There isn't a perfect paradigm of gods in each culture that lines up with the Greek or Roman gods. And if there is, there shouldn't be (well, it wouldn't be perfect anyway).
But that aside, certainly an interesting theory.
And now Glaukôpis is glad that blogging is done by typing rather than speaking. For her sore throat has grown quite painful, and she suspects her hacking up of lungs would scare her dear readers away quite quickly.