Old & In the Way
I don't think you can simply juxtapose the known span of recorded history against the span of Man's history in current iteration (Sapien). Archeology and Anthropology reach back much farther than 8,000 years and teach that man was most likely not driving around in cars 140,000 years ago, for one thing.Humans with the same exact brains as ours have existed for over 200,000 years. History is what, 8,000 years old? I find it hard to believe they were all just vibing in the woods for the other 192,000 years. All of recorded history could've played out multiple times during that period.
On the other hand, it easy to believe that lots of (dumb?) things have happened lots of times...