https://en.wikipedia.org/wiki/En%C5%ABma_Eli%C5%A1

On examination it became clear that the Assyrian myths were drawn from or similar to the Babylonian ones. Additionally Sir Henry Rawlinson had noted similarities between Biblical accounts of creation and the geography of Babylonia. He suggested that biblical creation stories might have their origin in that area. A link was found on a tablet labelled K 63 at the British Museum‘s collection by Smith, as well as similar text on other tablets. Smith then began searching the collection for textual similarities between the two myths, and found several references to a deluge myth with an ‘Izdubar’ (literal translation of cuneiform for Gilgamesh). Smith’s publication of his work led to an expedition to Assyria funded by The Daily Telegraph. There he found further tablets describing the deluge as well as fragmentary accounts of creation, a text on a war between good and evil ‘gods’, and a fall of man myth. A second expedition by Smith brought back further creation legend fragments. By 1875 he had returned and began publishing accounts of these discoveries in the Daily Telegraph from 4 March 1875.[10][11]

Smith speculated that the creation myth, including a part describing the fall of man, might originally have spanned at least nine or ten tablets.[12] He also identified tablets the themes of which were, in part, closer to the account given by Berossus.[13] Some of Smith’s early correspondences, such as references to the stories of the temptation of Eve, to the Tower of Babel, and to instructions given from God (Yahweh) to Adam and Eve, were later held to be erroneous.[14][15]