Stonehenge, Avebury, The Ring of Brodgar, Callanish and hundreds of lesser stone circles are to be found in the British Isles and elsewhere. But which was the first and from where did the knowledge that went into their building originate? Dating information indicates that the very first, the Mother and Father of all the Great Circles of Stone, was the Stone Circle of Stenness, to be found on the Isle of Orkney.
Which in turn gives rise to a great mystery. From where came the knowledge to build the first Stone Ring at Stenness? And to place the alignments with the Solstices?
The Poem the Seer (of Stenness) gives one explanation, albeit mythical. The poem is available here