So, the Callanish Standing Stones in Scotland are in the shape of a Celtic Cross.
They were put in that shape, near as I can tell, absolutely no later than 2600 BC.
Every source on the Celtic Cross that I can find talks about its Christian symbolism.
Obviously, this predates Christianity.
This also predates the use of the cross as a Christian symbol by even more (I believe it was in the 4th century AD).
So, if the Celtic Cross was in existence as a symbol three millennia before it was used by Christians in the British Isles, what was its initial symbolism?
I have no idea...
