BTW, not a chance. :') The Sumerians came from the sea (their words not mine) and referred to themselves as "the black-headed people". Their language is an isolate, and agglutinative, hence probably they came from the Indus or from southern India. They had a superstition that cities could not be founded by humans, only by gods, and took over existing cities, usually leaving even the foreign names. Their words for the great rivers of Mesopotamia were likewise borrowed from an unknown prior people speaking an unknown, otherwise unrecorded language. The Sumerians had the cuneiform writing system, which was widely adapted (notably by the Akkadians, who had no problem founding cities) and remained in wide use -- including in Egypt -- until the early centuries A.D. The Sumerians themselves faded out during a protracted period of internecine city-state warfare, and were absorbed and superseded by the Semitic Akkadians/Assyrians.