One of the oldest archaeological finds that seems to depict an event related to scripture is the so called Adam and Eve seal seen here.
The seal was found at Tepe Gawra in northern Iraq. This settlement was occupied from 5000 -1500 BCE. The seal depicts a man and a woman, bent over in shame, closely followed by a serpent. I am not saying this seal depicts Adam and Eve themselves. I am only saying that the inhabitants of Tepe Gawra remembered something closely resembling what the ancient Hebrews remembered and recorded.
Another artifact from a time long after Tepe Gawra, the Temptation Seal, gives the Assyrian side of the Fall. This seal is actually a cylinder with pictographs on it it. When rolled onto clay or dipped in ink and rolled on paper, it presents the image in the link. This seal is very interesting because seated in the center of the man and woman is a tree. Behind the woman a serpent can be seen whispering in her ear.
Again all this seal shows is that different cultures, Assyrian, Tepe Gawra, and Hebrew have a common remembrance/myth/legend of a man and a woman, a tree, and a serpent. Along with various flood stories in cultures all over the world, we can assume that ancient man in general has a collective memory of some distant past experiences.