The Tiamat myth is one of the earliest recorded versions of the Chaoskampf, the battle between a culture hero and a chthonic or aquatic monster, serpent or dragon.[17] Chaoskampf motifs in other mythologies linked directly or indirectly to the Tiamat myth include the Hittite Illuyanka myth, and in Greek tradition Apollo's killing of the Python as a necessary action to take over the Delphic Oracle.[18]