Marduk was a fertility god, a god of thunderstorms, and the son of Ea. Marduk was particularly popular among the Babylonians but eventually gained widespread recognition.
According to the epic poem Enuma Elish, Marduk led the new gods in a battle against the old gods, who were led by the chaos dragons Tiamat and Kingu. Marduk defeated the gods of chaos and gained power of supreme god. From Tiamat's remains, Marduk created the sky and the earth, and from Kingu's blood, he created the first human beings.