The tradition in ancient Sumer

Why should we pay any regard to Genesis when thinking about questions of origins? Here we argue that the source material was part of an oral tradition already known in the third millennium BC. Genesis is a distillation of that tradition, authenticated, paradoxically, by the very texts that are thought to discredit it.

As pointed out in the companion article, written documents cannot have been the source for the first chapters of Genesis. The Creation story, the temptation of the first human couple, the genealogies, the history of the antediluvian world and the story of the Deluge would all have passed down from generation to generation by word of mouth. The same applies to the story about Abraham. While it is not impossible that he could write, Abraham was an Aramean herdsman, not a member of the elite class of scribes and priests, and herdsmen, just as in parts of the world today, had no use for writing. If Moses wrote Genesis, he must have learned about the lives of Abraham and his descendants through the tribe’s traditions.

The stories about Abraham and his immediate descendants are rich in details specific to the time they describe and are amply authenticated by archaeological discoveries; they were not inventions of a later age (Kitchen 1995, Gordon & Rendsburg 1997). Thus we can have some confidence that they go back to the man himself. Abraham, the tradition tells us, came from polytheistic Sumer.

The ziggurat was designed so that gods from the underworld ascended to the first gate and gods from heaven descended to that gate, both then reaching ground level via one of the side stairways.Sumer, or lower Mesopotamia, was the location of the world’s oldest civilisation and is often referred to as ‘the cradle of civilisation’, as if it accommodated the birth of something innocent. In fact the religion at its heart was centred on sorcery, the magical invocation of spirits. Every city, it was believed, was ruled by a god and, much like a human king, the god lived in a palace in the midst of the city, present and manifest in his life-like statue. Close-by, a mountain-stairway enabled the gods of heaven to come down and the gods of the underworld to come up, so that they could join the ruling god in council and assist him in his deliberations.

There was one such ziggurat in Ur, home-city of Abraham. Its partly restored remains constitute the most impressive monument left by the civilisation. Ur served the moon-god Nanna. It was not a place where Abraham could have become acquainted with the monotheistic stories recorded in early Genesis. Haran, several hundred miles upstream from Ur, can discounted for the same reason: after leaving Sumer Abraham and his father lingered there because it too worshipped Nanna. They knew too little about the god who had called them out of the country to be happy about venturing further.

Moses, four hundred years later, was a descendant of Abraham brought up in the court of Pharaoh. Egypt was also not a place where anyone could have learned about the Genesis tradition. Though he would have had access to royal and temple libraries, there is no likelihood that any of these preserved a pristine account of the origin of the world. The tradition could have come down to Moses only through his forefathers. But how might they have learned about it? Since we have eliminated both Mesopotamia and Egypt, they must have come into contact with it somewhere inbetween, in the land of Canaan. Which takes us back to the time of Abraham, Isaac and Jacob.

The Fertile Crescent

In the hill-country of Canaan, on the outskirts of Sumerian civilisation, something close to a monotheistic cult might have survived. There are two pieces of evidence for this. One comes from Genesis itself, where, after defeating the king of Elam and his confederates, Abraham is greeted by Melchizedek, king of Jerusalem (Gen 14:18ff). Melchizedek means ‘The righteous one [is] king’, referring to the deity served by this priest-king, and he blesses Abraham in the name of ‘God Most High, maker of heaven and earth’. The word ‘God’ here is El, the head of the Canaanite pantheon, to whom titles such as ‘most high’, ‘lord of heaven’, ‘maker of heaven and earth’ were regularly applied. As demonstrated by Ugaritic texts, El was the father of the gods, enthroned in heaven, and he ruled over his sons with supreme power.

A similar picture comes from Eblaite texts. Ebla was a huge cosmopolitan city a hundred and thirty miles south-west of Haran. In the mid 1970s an archive of over 17,000 tablets was discovered there dating to around 2300 BC. Written in Sumerian script but in a language closely related to Hebrew, the tablets included a large number of bilingual dictionaries and showed that the city was frequented by itinerant teachers of Sumerian religion. Non-Sumerian gods were also known, the most eminent of whom were El and Ya. Ya was simply the personal name of El. One text said of him (Pettinato 1981):
Lord of heaven and earth,
The earth was not; you created it.
The light of the day was not; you created it;
The morning light you had not yet made.
This is similar to the Genesis tradition, where God creates the earth and on the first day calls light into existence.

Ebla’s king worshipped other gods besides El, notably El’s son Hadad, so we should not read too much into this document. It is primarily evidence that the tradition was less corrupted by Sumerian ideas than it later was. Whether Melchizedek, in more remote Jerusalem, worshipped other gods is not known. By this time, c. 1870 BC, there can have been few places that had not gone far down the road of confusing the sons of God with gods to be worshipped in their own right – inventing personalities, histories and genealogies for them, identifying them with aspects of the creation, ascribing them with power to bless and to curse. But possibly Melchizedek still preserved the Genesis tradition intact. He was the priest of the righteous Creator to whom all gods owed their existence, and Abraham saw that he was unlike other priests and kings. So perhaps it was from him that Abraham received the tradition and learned about the deity who had appeared and spoken to him.

The problem posed by Gilgamesh

In 1872 an assistant Assyriologist at the British Museum named George Smith came across a cuneiform tablet had been found in the royal libraries at Nineveh and belonged to a larger work about Gilgamesh, king of Uruk. As Smith began to decipher the text, he realised that it told of a flood astonishingly similar to Noah’s flood. Questions clamoured. Was the story younger or older than the book of Genesis? Who had borrowed from whom – the Sumerians from the Hebrews or the Hebrews from the Sumerians? Even before they knew that Gilgamesh was a composition older than Genesis, archaeologists and theologians alike were happy to conclude that the Hebrews had borrowed from the Sumerians.

The Gilgamesh epic exists in a number of versions, some going back to the Old Babylonian period, well before the earliest date for Genesis. Even in the oldest version the flood features as a story within another story, narrated by Utnapishtim, the Noah-like survivor of the flood whom Gilgamesh meets in his search for eternal life. In fact the story is borrowed from another poem, Atrahasis, a work much more like the first chapters of Genesis. In that work it constitutes the principal theme and climax of an epic which opens with a description of a world when gods inhabited the earth. TRuled by superior gods in heaven, these gods have to dig canals. Finding the work burdensome, they threaten to rebel against their masters. They rouse the chief deity Ellil out of his bed and urge him to make their lives easier. In consultation with his two co-leaders, Ea and Anu, Ellil agrees that another being, man, should be created to carry out the work. Man, however, proves a mixed blessing. He produces too many children, and eventually becomes so numerous that his noise stops Ellil from sleeping. After several vain attempts to reduce the population by disease and famine, Ellil resolves to destroy the human race by a flood. Privately Ea disapproves. He tells Atrahasis – another name for Utnapishtim – to build a vessel in which birds, cattle and wild animals can be saved.

Atrahasis obeys. When Ellil discovers that he has been thwarted he is furious. Ea propitiates him by instituting less drastic measures to limit the post-flood population, such as ensuring that some babies are snatched away by demons. The only man who is granted immortality is Utnapishtim himself.

Clearly the Sumerians did not borrow from the Hebrews. But it is also not obvious that the Hebrews got their story from the Sumerians or Babylonians. Why would monotheists have wanted to take over a polytheistic story in the first place? Why did they reject the details about the gods as fiction but not reject the underlying human story as fiction? Why did they not set the drama in the land of Canaan, in the same way as every other people with a flood tradition set it in their own land?

Perhaps we should consider a possibility neglected by most scholars, that Gilgamesh and Genesis derive from a tradition common to both peoples. For the moment the crucial points are:
  • The earliest known context for the flood story – Atrahasis – was universal in scope. It was about the creation of man, the offence he gave to the gods, and his eventual extermination.
  • Atrahasis does not have a high view of either gods or man: man was created to be the gods’ slave, and Ellil was moved to destroy the human race because its noise kept him awake.
  • Although it provides an explanatory story about the past, Atrahasis is essentially an epic poem and as such quite different from the dry, historical prose in which Genesis was written.
  • Epic poets were free to take an element of one story and adapt it for the purposes of another.

The Sumerian work is inherently fictionalising. Historical events – known about through tradition – serve as raw material for the poet’s art, which has licence to embroider and reweave. There is no obligation to be true to source. The deliberations of the gods are dramatised, one god pitted against another, and it is beside the point to ask how the poet could have known what they said to each other. We are dealing with entertainment, not history.

With Genesis the motive for telling about the Deluge generation after generation lies in the story itself: the event was momentous, and what it reveals about the righteousness of the one God and Creator of the world is of abiding significance, a compelling reason not to replace truth with fiction. God granted man a second chance after the Deluge and that knowledge helps him to understand his present existence. The story reveals who God is. There is no similar sense when we read Atrahasis. The subject matter is valueless for understanding life: if the story has any meaning, it is that life has no meaning, for the gods are selfish and capricious, divided in their counsel, false to one another and to man. The historiographic interest is replaced by the dramatic, prose turned into poetry. In Genesis the storyteller’s art serves the purpose of the history; in Atrahasis the history serves the purpose of the storyteller, who therefore includes, modifies and alters whatever of the facts he likes. The conditions for preserving the original story intact have gone.

Thus, if the Gilgamesh and Genesis versions are similar because they derive from a common tradition, the version likely to be closer to that tradition, and the more accurate, is Genesis, even though, as a text, it is younger. Genesis is the tradition put into writing: literary in form, but under an obligation both of genre and theology not to embellish, not to fictionalise. In Hebrew literature there is no evidence that writers were accustomed to reshuffle the themes that made up their total repertoire, still less to borrow from peoples whose culture was fundamentally alien to theirs. By contrast, partly because it had to cater for many gods, Sumerian literature was much more promiscuous. Poets drew upon a common stock of narrative themes which they ‘used in different stories, and adapted in various places for diverse gods’ (Dalley 2000, p 204).

The name of God

One of the strongest evidences that monotheism preceded polytheism in Sumer is that, until the Late Uruk period, the country knew only two gods: Anu, who had a temple at Uruk, and Ea, who had a temple at Eridu. Later, they were joined by a third, Ellil, who was worshipped at Nippur. These were high gods, with absolute authority in the universe; lesser deities appeared only after them, increasing in number in the same way a family does. A new deity was assigned a parentage from pre-existing gods, and he made a niche for himself in the human world by slightly reducing the role of a god who was less specialised.

In the ancient world all gods had names, for in principle they were knowable as persons. Some had more than one name: for example, the goddess Ninhursag (‘lady of the mountains’) was also known as Nintu (‘lady of birth’) and Belet-ili (‘mistress of the gods’). Anu, Ea and Ellil were originally different names for the same deity. Anu meant ‘Heaven’, an impersonal synonym for God. His personal name was Ea, pronounced, and sometimes written, as Ay-a (Roberts 1972). Ellil was a duplication of the Semitic word il, as in Eblaite texts, where the name appears in the form il-ilu. The duplication signified that he was the one, self-existent God before all others, the ‘god of gods’, just as Hebrew used the plural form Elohim to refer to the one God. The three names together designated Aya (who he was), god (what he was) of heaven (where he was).

The most common proper name for God among the Israelites was Yahweh, the name by which he first revealed himself when he appeared to Moses (Ex 3:15, 6:3). When Abraham called on his name after building an altar between Ai and Bethel (Gen 12:8), he must have known him by a different name. The reference to Yahweh in the text is retrospective: Abraham was calling on the one whom Israel later came to know as Yahweh.

In Abraham’s day the proper name was Yah. Unlike Yahweh, Yah is attested as a component of both Israelite and Eblaite names from long before the time of Moses. The name of Jacob’s great-grandson, Abiah, meant ‘Yah is father’, Joshua, ‘Yah saves’. Texts found in the Syrian city of Ebla (c. 2250 BC) include such names as Isa-yah (‘Yah has gone forth’) and Mika-ya (‘Who is like Yah?’). Although the names Yah and Yahweh were associated from early on, as in Exodus 15:2, and may derive from the same root, it is unlikely that Yah was an abbreviation of the other, as is sometimes proposed. Indeed, if the name Yahweh was not known prior to Moses, it cannot have been its abbreviation. This is also inferable from texts where the two are in apposition: Yah Yahweh (e.g. Isa 12:2). Parallel titles, such as Adonai Yahweh (‘Lord Yahweh’, Gen 15:2) or Yahweh Elohim (‘Yahweh [who is] God’, Gen 2:4), suggest that the meaning is ‘Yah who is Yahweh’, that is, Yah who revealed himself as Yahweh. It would have been pointless to add the full name after the shorter form. Yah renamed himself Yahweh as a token of the covenant he was about to enter with Moses’ people, just as he had earlier renamed Abram Abraham.

To make it clear that he was the deity whom Israel’s ancestors knew as Yah, Yahweh instructed Moses to tell the Israelites, “I am has sent me to you.” ‘I am’ in Hebrew was Eyah, equivalent to Akkadian Ayah, and Ya(h) was a West Semitic contraction of the word. Mesopotamians knew him by his East Semitic name: Ea, or Aya. Like Yahweh, the name was derived from the verb ‘to live’ or ‘to be,’ and meant ‘The Living One’ or ‘I am’. Ea and Yah were the same name, representing the same god, and Yah, in turn, was the same god as Yahweh.

The names of the principal gods of Akkad and Sumer, c.3100 BC.

Over time the concept of a transcendent Creator in Mesopotamia disintegrated, with different parts of the creation being allocated to a multitude of gods. Atrahasis mythologised this process by characterising the universe as an inheritance for which they cast lots. The god of heaven, called Anu as if this were now a proper name, was allocated the highest part. Ea was allocated the subterranean earth and the watery Apsu (the great deep). Ellil took charge of the subaerial world between the heavens and the Apsu. His name too was treated as a proper name. In the person of Ellil, God lived at the same level as man in a world from which he was no longer estranged. And all three took on the nature of carnal human beings. They took wives. Uniting with them, their wives produced sons and daughters, who in turn begot more deities. The deities functioned as the proprietors and guardians of Mesopotamia’s now competing cities, patrons of the powers and attributes that gave civilisation its lustre. As the human population grew, so did the divine population, until by the mid third millennium the pantheon, according to one list, totalled around five hundred, a huge number, even allowing for the fact that some names referred to the same deity. By the end of the second millennium there were around two thousand.

Genesis and Atrahasis compared
Atrahasis does not open with the creation but plunges straight in, explaining how the gods once lived on the earth as human beings. In Stephanie Dalley’s translation:
When the gods instead of man
Did the work, bore the loads,
The gods’ load was too great,
The work too hard, the trouble too much,Part of the Atrahasis epic, from Sippar, Iraq. British Museum catalogue no ANE 78941.
The great Anunnaki made the Igigi
Carry the workload sevenfold.
Anu their father was king,
Their counsellor warrior Ellil,
Their chamberlain was Ninurta,
Their canal-controller Ennugi.
They took the box (of lots),
Cast the lots; the gods made the division.
Anu went up to the sky,
[And Ellil] took the earth for his people (?).
The bolt which bars the sea
Was assigned to far-sighted Enki.
When Anu had gone up to the sky,
[And the gods of] the Apsu had gone below,
The Anunnaki of the sky
Made the Igigi bear the workload.
The gods had to dig out canals
So begins an account that refashions the Genesis tradition in keeping with a polytheistic view of the world. The gods known as Igigi are ‘instead of man’, not only in the sense that they do his work, but that they have completely taken his place. In the original tradition it is man who has to work. Adam is condemned to till the ground and toil for his bread (Gen 3:19, 23). Much later, Noah is the hope of his father because he ‘will bring us relief from our work and from the toil of our hands’ (Gen 5:29). In Atrahasis those who toil are a lower order of gods, and they dig the ground not to grow crops but to make canals, a specifically Mesopotamian form of hard labour, performed by slaves.

A historical account must be self-consistent if it is to have any claim to be authentic. An account which alters and fictionalises history is likely to retain details that make little sense in the new version. Incongruous, unassimilated traces of the source material may point back to a prior account where they were not incongruous.

It is striking that the Genesis account describes a world quite different from the one which existed when Genesis was written down. Though the names are mostly familiar, the geography is not. For example, the river flowing out of Eden branched into four: Pishon, Gihon, Tigris and Euphrates, whereas in the present world these are not branches of a single river, and Pishon and Gihon are difficult to identify at all. In the antediluvian world Pishon flowed round the borders of Havilah, Gihon round the borders of Cush. In the Ancient Near East, Havilah was part of Arabia, Cush was Ethiopia, and neither territory was bounded by a river. They were post-Deluge territories. Havilah was so named after the descendant of Shem who settled there (Gen 10:29), Cush after a descendant of Ham who settled there (Gen 10:6). The individuals were postdiluvians named after antediluvians, and the lands where they settled were named, respectively, after them. Eden cannot be located at all in the present world.

The change in geography was the consequence of the dry land having been destroyed in the Cataclysm (Gen 9:11). When the colonisers of the Ancient Near East chose names for their new settlements and lands, they were drawing upon a still extant tradition about that world, in the knowledge that in multiplying and spreading across the earth they were repeating its history. They were deliberately evoking the old world, much as European settlers of North America and Australia did with their place names (New York, New England, New Hampshire and the like).

In Atrahasis we encounter a world that is recognisable. There are many gods, and the gods mirror the social order of Sumer: the Anunnaki upper class, with their own chamberlain and canal-controller, ruling the Igigi lower class. The land is watered by the two major rivers of the present age, the Tigris and the Euphrates. We are struck by details that seem incongruous. Why are gods digging canals? Why have the Anunnaki forced them to labour in this way? For what purpose? The original account of creation has been reworked in order to justify a new theology. Man has been created to serve the gods, and hence the priests and the king who represent them.

In Sumerian theology it was the king alone who in any degree reflected the divine nature. The Sumerian King List tells us that there was a moment in history when ‘kingship came down from heaven’ and was delegated to human beings. The gods were present, after a ceremony of breathing into their nostrils (exactly as in Gen 2:7), in the effigies made for them, the king served the gods, and the people served the king. With help from the priests, it was his duty to ensure that the gods were clothed, housed and fed, and to do that, the king required the services of craftsmen, builders, farm-workers. In Atrahasis Ea therefore creates man to be the gods’ slave, and it is unnecessary that man should reflect anything of the divine nature.

That there is a sense in which, nonetheless, man does reflect divinity is another incongruity. Ea has him made partly from clay, partly from the flesh and blood of one of the Anunnaki slaughtered for that purpose. By these means ‘god and man will be mixed together’ (illogically, for man himself is supposed to be the product of this fusion), and the death of the god will ensure that a ‘ghost’ lives inside him. These details become comprehensible only in the context of the Genesis account, where God creates all humanity to reflect his nature. He forms him from Panel showing the creation of Eve, from Michelangeloclay and animates him, not by taking the life of one of his sons, but by breathing into him something of his own life (2:7). He forms the man and the woman personally, ‘in his image’. Not only are their bodies to be a dwelling-place for his spirit (6:3), but he has them bear the physical image in which he himself has chosen to manifest himself. He blesses them and gives them dominion over the animals; they are to rule over the rest of creation, not the rest of mankind.

In Atrahasis Ea does not create man personally; he delegates the task to Ninhursag, here called Belet-ili (‘mistress of the gods’). Once again, there is something unexplained about this, since although she is characterised as a womb-goddess, she exists before any human beings exist, and the man about to be created does not come from any womb. The reason for her involvement becomes apparent only when we turn to Genesis and recognise that Ninhursag has her prototype in Eve, the first woman. Eve has been deified: Ninhursag exemplifies how gods are ‘instead of man’ (as the opening line says) and how, in pushing man down to a lower level, they take away from his god-like qualities. Ninhursag’s true identity is clear from two other titles of hers, ‘mother of the gods’ and ‘mother of all children’, from which again we see the equivalence between gods and men. Eve, correspondingly, is ‘the mother of all living’ (Gen 3:20), because she has been created with an ability to procreate; under God, and via Adam, she is the ancestor of us all. In Atrahasis she is a goddess to whom the creation of mankind is delegated, and consequently the creation of woman, distinct from man, is not described.

The Fall of Adam. Painting by Hugo van der GoesIn Genesis God expressly invites man to multiply and fill the earth. But he creates him mortal. The only way he could become immortal is to eat of the tree of life, and that he fails to do. Instead he does the one thing that guarantees he will not live forever: he eats of the tree of the knowledge of good and evil. The act of disobedience seals his death; he cannot now eat of the tree of life. God therefore drives him out of the garden into the natural world where he has to toil for his bread. He must return to the dust from which he was made.

In Atrahasis God puts no limit on man’s mortality, for there seems no reason why the slave should not live as long as his masters. His filling the earth unchecked by mortality is both unforeseen and regretted; it was never part of the plan. Disease and famine (not mentioned in Genesis) are unsuccessful ad-hoc attempts to deal with the noise problem by culling the population. Death becomes the lot of all humanity only after the flood (Dalley 2000). If man had not been created with the ability to reproduce, or if the earth had not been finite, he might have lived forever.

In Genesis, the problem has nothing to do with the din from an over-populated earth. It has to do with the fact that the sons of God, in Atrahasis called the Anunnaki, are copulating with the daughters of men (Gen 6:1-4), and man himself is continually thinking and plotting evil. The whole earth is corrupted by man’s wickedness, and heaven is implicated in it. In Atrahasis the moral perspective is lost. God is divided against himself, Ea versus Ellil and Anu. He creates man by killing one of his sons. He brings the deluge because he cannot sleep – a Sumerian perversion of the tradition that God rested on the seventh day of creation (Gen 2:3). The only trace of a moral perspective is the character of the man who objects to Ellil’s measures:
Now there was one Atrahasis
Whose ear was open (to) his god Enki.
He would speak with his god,
And his god would speak with him.
Atrahasis made his voice heard
And spoke to his lord,
“How long (?) [will the gods make us suffer]?
Will they make us suffer illness forever?”
But even here Atrahasis is described as an exceedingly wise man rather than an exceptionally righteous one (Gen 6:9), and the problem is not man’s wickedness but the gods’. The deluge is its culmination. Ea’s advice to Atrahasis that he dismantle his house and build a boat is a scheme only to mitigate the atrocity. Moreover, the deluge is an act of stupidity. For who will do the work of building the canals if man is wiped out? The story neither asks nor answers the question, because it is parasitic and has not been thought through. The disaster makes no sense, despite being the climax of the story.

Commentators have long supposed that Mesopotamia’s version was inspired by the experience of an exceptionally devastating overflow of its rivers. Certain descriptions do, after all, give the version a distinctly local character. But others do not. Details conflict, as if two events, one regional and recent, the other global and ancient, were conflated into one. Winds rage, screaming like a wild ass, the land is shattered like a pot, and there is total darkness. An overflowing of the Tigris and Euphrates? Possibly. On the other hand, in the later myth Erra and Ishum we are told,
The control of heaven and earth was undone. The very heavens I made to tremble, the positions of the stars changed; even Erkalla [the underground city of the dead] quaked.

The measures Atrahasis has to take in order to circumvent the disaster also hint at a more than regional disaster. He must take on board birds, wild beasts and cattle, for Ellil’s intention is to destroy all life and leave no survivors. He must build (in the Gilgamesh version) a gigantic cube seven storeys high, its length, breadth and height each 120 cubits (50 metres), and take “the seed of all living creatures”. Again, it is Genesis which makes clear the reason for these instructions. The design of the vessel, a vastly more seaworthy 300 by 50 by 30 cubits, answers its explicit purpose: the earth’s animals are to be entirely blotted out, and from those preserved in the ark the earth, once the deluge is over, is to be restocked. Even birds will not survive the cataclysm.

The landing of Atrahasis’ boat on Mount Nimush is similarly incongruous. According to one Assyrian text the mountain lay southeast of the Lower Zab, a tributary of the Tigris, in which case it was probably Pir Omar Gudrun, rising to 9,000 feet. Be that as it may, had the floodwaters reached even the foothills of the Zagros Mountains, Sumerian civilisation would have been wiped out. There would have been no restoration of cult centres or renewal of the kingship, as Gilgamesh relates, merely a depopulated wasteland. In the context of Gilgamesh the detail that the boat landed on a mountain is completely foreign. The implied depth of water makes sense only in the context of a universal deluge.

Nonetheless, for all its Mesopotamian colour, Atrahasis is a story about the whole human race. It explains in Mesopotamian terms why mankind was created, and why mankind had to be destroyed. After the Deluge death is instituted as the normal end to human life, not just the consequence of disease and famine. In such a context the Deluge cannot but have been universal. The same applies to the tradition which tells of it. If the deluge was a real event, and perceived as affecting the whole of mankind, the tradition can hardly have originated in the experience of a merely regional inundation.


That the Sumerian and Hebrew accounts of the Deluge some genetic relationship is clear: they have too many details in common for their similarity to be coincidental. But in what way are they related? Neither of them seems directly dependent on the other. Atrahasis cannot have borrowed from Genesis, because it is the older text of the two, and Genesis cannot have borrowed from Atrahasis, because at every point of comparison it is manifestly the less corrupted version. Atrahasis and Genesis stem from a tradition that was older than both. In this sense Genesis can be treated as a historical text. It is not a document without origins. The Sumerian versions throw the Hebrew text into sharp historical relief, demonstrating that it has a pedigree in oral tradition stretching at least as far back as the third millennium. They also demonstrate just how far the Sumerians had by then distorted the story. What we know about their society suggests that the corruptions were ideological rather than failures of memory.

Related material:
The primeval tradition of all mankind
Evidence from other continents that Genesis reflects a once universal tradition.
The chronology of Genesis 7-8.
Further evidence, both Hebrew and Sumerian, that the cataclysm described in Genesis chapters 7-8 was a unique event.
A record of Earth’s recolonisation
How the rocks beneath our feet present a record consistent with the historical record.