The Sumerians are widely regarded as the first civilization to develop real cities, as well as the wheel and a writing system. The Sumerian civilization was based in southern Mesopotamia, or what is today known as southern Iraq. Circa 2112 BCE, it is recorded that King Utukhegal of Ur finally got rid of the Gutians and effectively establish what would be the third dynasty of Ur. This lasted until about 2002 BCE, when the Elamites finally put an end to Sumerian influence once and for all.