The correct answer is the Sumerian Empire.
The Sumerian Empire was the earliest founded of the ancient Middle Eastern civilizations.
The Sumerian Empire is the oldest civilization in human history. It was located in the region of Mesopotamia, between the Tigris and Euphrates Rivers, in modern day Iraq. This Western Asia civilization is considered “the origin of humanity”. Historians consider that Sumerian civilization established in this region in 4500 BCE or earlier.