Answer: The Mesopotamian wrote the Epic of Gilgamesh and the Code of Hammurabi using Cuneiform.
Explanation: In the ancient Mesopotamian system of writing, the cuneiform was used. Cuneiform is a system of wedge-shaped characters invented by the Sumerian. Used at the time of Mesopotamia and Persia, the cuneiform was a form of writing on clay tablets, and hence the possibility of their survival and archaeological finding. The Epic of Gilgamesh is considered by some scientists the oldest surviving epic and the great work in literature and human civilization. The Hammurabi Code is the Babylonian Code of ancient Mesopotamia, it is believed to date around 1754 BC and one of the oldest deciphered significant codes in history.