How do you believe the unique geographical and historical circumstances of various cultures contributed to their creation myths?
The local variations, of which there are many, point to a common thread of reality, which, according to the particular ‘cultural memory’ of the people involved bears a lesser or greater resemblance to the account in Genesis. The geographic and historical features serve to ‘fill out’ the account, many of which bear a striking resemblance to the factual account in Genesis.