The first half of the story discusses Gilgamesh (who was king of Uruk) and Enkidu, a wild man created by the gods to stop Gilgamesh from oppressing the people of Uruk. After Enkidu becomes civilized through sexual initiation with Shamhat, he travels to Uruk, where he challenges Gilgamesh to a test of strength. Gilgamesh wins the contest; nonetheless, the two become friends. Together, they make a six-day journey to the legendary Cedar Forest, where they ultimately slay its Guardian, Humbaba, and cut down the sacred Cedar.[5] The goddess Ishtar sends the Bull of Heaven to punish Gilgamesh for spurning her advances. Gilgamesh and Enkidu kill the Bull of Heaven, insulting Ishtar in the process, after which the gods decide to sentence Enkidu to death and kill him by giving him a fatal illness.