The Vulture Stone at Gobekli Tepe

Just after posting my review of Graham Hancock's Magician of the Gods, a related announcement was made by the Engineering Dept. at Edinburgh University in Scotland. According to their analysis, Pillar 43 ("The Vulture Stone") is not predicting a cataclysm but commemorating the cataclysm that initiated the Younger Dryas Period. The Edinburgh team deduced that the ball in the figure represents the summer solstice sun (rather than the Galactic Center as proposed by Hancock) in 10,950 BC, which is very close to the accepted date for the Younger Dryas event.

https://archaeologynewsnetwork.blogspot....

If the catastrophe was related to a cyclical event (such as a comet strike), then keeping track of the elapsed time from that event would have been critical (in order to prepare for future occurrences).

My review of Magicians of the Gods:

http://www.dailygrail.com/blogs/Charles-...

Other articles discussing the Edinburgh University announcement:
(each of these articles emphasizes particular details of the Edinburgh study, such as a possible alteration of the Earth's tilt from the impact event)

https://archaeologynewsnetwork.blogspot....
https://www.thesun.co.uk/tech/3381932/an...
https://phys.org/news/2017-04-ancient-st...
https://www.sciencealert.com/ancient-sto...
http://observer.com/2017/04/scientists-r...
http://metro.co.uk/2017/04/21/ancient-st...
https://www.earth.com/news/new-informati...
http://www.iflscience.com/space/13000yea...