A controversial comet strike theory has been circulating for 20 years. Now a group of researchers say they have found new evidence for it in ancient carvings at Göbekli Tepe, in Turkey.

'World's oldest calendar' discovered carved into ancient monument

Source: space
Source Link: https://www.space.com/comet-strike-13000-years-ago-world-oldest-solar-calendar-gobekli-tepe-turkey