Thanks for the advice, but it actually was Druids, we just don't have any proof it was Druids since all Druids are dead. Our modern neo-Druids are not real Druids.
If you insist on holding to a seventeenth-century fiction, I guess that's your right.
...we just don't have any proof it was Druids...
But we do have proof that it wasn't, specifically that it pre-dated them by a couple of thousand years. OK, so we have proof that it wasn't them and no proof that it was and you still want to say they did it. Man, if I'm ever charged with a crime that I didn't commit, I do NOT want you on my jury!!!