False. <span>According to legend, it was built by the king </span>Sargon the Great<span> (who ruled 2334-2279 BCE) who unified Mesopotamia under the rule of his Akkadian Empire and set the standard for future forms of government in Mesopotamia.</span>
Gilgamesh was an important king and mythological figure in the Sumerian civilization that developed in Mesopotamia and was one of the earliest civilizations in the world. It is believed Gilgamesh lived around 2500 BC although there is limited information about him and his rule, except by the Epic of Gilgamesh and other texts inspired by him.
On the other hand, the Akkadian Empire was an empire that emerged around 2300 BC in Mesopotamia and included the Sumerians and Akkadians that had developed in the North. According to this, it is false Gilgamesh was the ruler of the Akkadian Empire because he was the ruler of the Sumerian civilization, also, the Akkadian empire was only formed in 2300BC years after Gilgamesh had lived and the Akkadians were a different civilization from the Sumerians.