re: Ancient civilizations. Y or N?

Just look at the Younger Dryas period approximately 10-12,000 years ago. Sea levels rose rapidly approximately 400 feet. Look at historical records from around the world where everyone talks about the Great Flood during that same period of time. You have a great example of Gobekli Tepe and there are many other examples around the world of people being more advanced than originally thought. People have been around for a long long time. Cataclysms happen and we pretty much start over with the survivors. I do think that there have been advanced civilizations in the past. And I’m glad that light is being brought to this subject.