Comet strike may have sparked key shift in human civilization
https://www.sciencedaily.com/releases/2021/06/210624114509.htm
Possibly the most devastating cosmic impact since the extinction of the dinosaurs, it appears to coincide with major shifts in how human societies organised themselves, researchers say.
Their analysis backs up claims that an impact occurred prior to start of the Neolithic period in the so-called Fertile Crescent of southwest Asia.