Point of Correction... The Bible based creation model to which you refer holds creation at 6000-odd years ago... 4000-odd years ago was the flood. Creation would have been 2000-odd years prior.
That's going to come as a big surprise to the ancient Egyptians, who had a continuous history and civilization for a thousand years before, during, and after this alleged worldwide flood 4000 years ago. You'd think they would have noticed something like that...