thats what I find so fascinating. That capability came from Orkney.
The great Orcadian Neolithic monuments were constructed almost a millennium before the sarsen stones of Stonehenge were erected.[21] At one time it was believed that this flowering of culture was essentially peripheral and that its origins were to be found to the south on mainland Great Britain. However, recently discovered evidence shows that Orkney was the starting place for much of the megalithic culture, including styles of architecture and pottery, that developed much later in the southern British Isles.
Just mind blowing stuff.