I've often wondered about that.
Whatever their degree of industrialization they had, it wasn't enough to stop that big rock from smacking into what is now the Yucatan, and killing almost all of them off.
"Whatever their degree of industrialization they had, it wasn't enough to stop that big rock from smacking into what is now the Yucatan, and killing almost all of them off."
Shot from a giant dino catapult...their version of a nuclear weapon...also happened to coincide with nuclear rock winter...see Flintstones chapt 4 subheading catastrophe