Gobekli Tepe Archaeoastronomy and the Second Hill of Osiris

What an amazing place!

"Portasar’s most fascinating stone circle is Enclosure D. Its organic material has been carbon-dated to c.10,500 BC (Schmidt, K.) suggesting people were present here three hundred years after the meteorite strike that triggered the Younger Dryas. By the same token, C-14 dating of the wall mortar protecting this enclosure offers a range of 9990-9600 BC, suggesting activity at the site one hundred years either side of the meteor strike that generated the great flood and the end of the Younger Dryas. It would appear that someone came to this hill in Anatolia to construct what appears to be an observatory or a library in stone, then carefully packed up the site and left prior to the destruction about to unfold."