The famous story about the Great Flood is best known from the Bible (Genesis 6-9).
It has always been known that there were similar stories from Greece and Rome (like the ones by Apollodorus, Ovid, and Hyginus), but in the nineteenth century, several texts from ancient Iraq were added. The first discovery was Tablet XI of the Babylonian Epic of Gilgameš (in 1872), the second the Sumerian original, now called the Eridu Genesis (1914), and the third the Epic of Atrahasis (1956). It is now clear that the Biblical account stays close to a Babylonian model.