Astronomical Advances in Prehistory
Altamira, Spain, 16,000 BC, origin of the hexagram. Image diagramming sunrises and sets of equinoxes and solstices. Translation by Duncan-Enzmann.
Important dates, sites, and astronomical discoveries in prehistory (Duncan-Enzmann)
BC Site Discovery
450,000 Bilzingsleben shadows and sundials
77,000 Blombos, S. Africa solar V
38,000 Vogelherd solar & lunar calendars
29,000 Chauvet tetra fauna calendrics
18,000 Altamira overlapped solar V
14,500 Lascaux precession recognized
12,500 Gönnersdorf solar azimuth
11,000 Göbekli Tepi siting holes and slots
8500 Early Stonehenge observatory
7500 Goseck, Carnac find level with water, find vertical with plumb
6500 Europe Venus clock, 7 planets, named days
Climatological Era Dates (BC) according to the Camp Century Ice Core (Duncan-Enzmann)
45,000 Hengelo Denecamp
29,000 Aurignacian
21,000 Solutrean
14,500 Lascaux
12,500 Bølling
9000 Allerød
8000 Pre Boreal
6000 Boreal
5900 – 3750 Atlantic Grand Climate Optimum