Long before the accounts of Genesis 1 and 2 were written there was an earlier creation story known throughout the ancient Near East. In this myth a god defeats the forces of chaos (symbolized as a dragon) in battle, and splits the dragon’s body to create the earth and the heavens. A well known example of this myth is the battle between Tiamat and Marduk, from the Babylonian Enuma Elish. In other versions, from different places and times, it is the local god that is cast as the hero. According to the bible, YHWH was no exception.
From the Encarta encyclopedia...
Creation Myths
A great many details of this story can be found in the references that are scattered throughout the bible which depict YHWH as an anthropomorphic deity among other deities, existing before creation. The later accounts, in Genesis, appear to be an attempt to gloss over this earlier popular belief, and to distance Yahwism from other traditions."Leviathan, in the Bible, one of the names of the primeval dragon subdued by Yahweh at the outset of creation: “You crushed Leviathan’s heads, gave him as food to the wild animals” (Psalm 74:14; see also Isaiah 27:1; Job 3:8; Amos 9:3). Biblical writers also refer to the dragon as Rahab (Job 9:13; Psalm 89:10) or simply as the Abyss (Habakkuk 3:10).
The biblical references to the battle between Yahweh and Leviathan reflect the Syro-Palestinian version of a myth found throughout the ancient Near East. In this myth, creation is represented as the victory of the creator-god over a monster of chaos.
The closest parallel to the biblical versions of the story appears in the Canaanite texts from Ra’s Shamrah (14th century BC), in which Baal defeats a dragonlike monster: “You will crush Leviathan the fleeing serpent; you will consume the twisting serpent, the mighty one with seven heads.” (The wording of Isaiah 27:1 draws directly on this text.)
A more ancient version of the myth occurs in the Babylonian Creation Epic, in which the storm god Marduk defeats the sea monster Tiamat and creates the earth and sky by cleaving her corpse in two. The latter motif is reflected in a few biblical passages that extol Yahweh’s military valor: “Was it not you who split Rahab in half, who pierced the dragon through?” (Isaiah 51:9; see also Job 26:12; Psalm 74:13, 89:10)."
So, have creation 'scientists' managed to locate YHWH's blade?