Genesis, as well as much of the bible was written circa" 600bc.
Are you saying nomads knew more about the origins of our world than todays enlightened scientists?
Yes indeed, you see it's a little thing called actually having faith.
Genesis, like the rest of the bible, is considered to be divnely inspired.
The original basis for this late of a date for Genesis authorship, namely, that writing had not evolved until about 1000 BC, is thoroughly discredited.
Cordially,