What we know as Genesis was written 5000 b.c in ancient Sumer. It has been changed since the . This is why there are differing accounts of the creation of man and woman.
We are told that Moses wrote the first five books of the OT, and since Moses only lived around 3,500 year ago, around 1500 BC, your claim that it was written 5,000 BC in ancient Summer, means that Summer existed before Adam was created, and with respect to the "Young earth theory" held by many Christians, even before God had actually created the heavens and the earth.
There are many Creation stories within the various diverse people groups around the world which are generally verbal accounts.
Now I am not saying that you are "wrong" but your claim on this forum is generally outside of the accepted understanding of many Christian members.
Shalom