Gilgamesh, Enkidu, and the Netherworld
Gilgamesh, Enkidu, and the Netherworld (abbreviated as GEN) is one of five extant compositions of the Sumerian language about the deeds of the hero Gilgamesh. It was known to the ancients by its incipit, ud ri-a ud sud-rá ri-a or "In those days, in those faraway days". It spans 330 lines.
Apart from the first few lines of the prologue containing common cosmological sayings, GEN is a unique text from the corpus of Sumerian and Akkadian literature with few serious parallels known from other works.