In Mesopotamian mythology, Marduk is a principal deity associated with creation and order. He is celebrated for defeating the primordials, including the chaos monster Tiamat, and bringing structure to the universe. Marduk's significance lies in his role as the protector of the city of Babylon and as a symbol of justice and authority. His elevation to the chief god reflects the socio-political dynamics of the era, where myths were used to confirm the ruler's power. Marduk's epic demonstrates the importance of order over chaos in establishing civilization.