Over 4 years ago, I started presenting materials and insights based on a large presentation outline I had authored over the turn of the year 2017 - 2018 called O-Day.
Presentation was made on the 27th February 2022, at 22:00 CET
ERRATA: The Carved stone in this presentation was from New Grange in Ireland and NOT from Skara Brae in Orkney islands of scotland, though similar spiral carvings artefacts were found there and it is from a similar period.