Bull of Heaven

In the literary corpus of ancient Mesopotamia the Bull of Heaven is a numinous beast associated with the high gods and the sky. In the Akkadian Epic of Gilgamesh (Tablet VI) and an earlier Sumerian poem the goddess Inanna/Ishtar, angered after being spurned, demands the Bull from the sky‑god Anu (An); the bull is then released to punish mortals and challenge the hero(s) Gilgamesh and Enkidu. Scholarly traditions also note its naming in Babylonian astronomical lists as GU4.AN.NA, 'Bull of Heaven,' linking the narrative creature to an astral identity (the constellation Taurus).

Surviving textual descriptions and cylinder‑seal imagery portray the Bull as abnormally large and ferocious — a monstrous bull of extraordinary size. Epic lines describe its breath as physically devastating (creating enormous holes in the ground that swallow scores of men), and iconography from the Akkadian period commonly depicts a monumental bull figure engaged with heroic combatants.

Acts as an instrument of divine will: when unleashed by Ishtar (after receiving it from Anu) the Bull tramples the land, breathes destructive blasts that create vast pits, and causes mass casualties. It is both a terrestrial monster that devastates human communities and an astral being identified with Taurus. Its slaying by Gilgamesh and Enkidu provokes divine judgment (Enkidu's death), so the creature's narrative role extends beyond physical destruction to significant cosmic and moral consequences.