Sumer

Sumer (or Shumer, Egyptian Sangar, biblical Shinar, native ki-en-gir, (from Ki = Earth, En = (title) usually translated as Lord, Gir = (cultured) usually translated as Civilised, thus "the land of the civilised lords") was an ancient civilization located in the southern part of Mesopotamia (modern day southeastern Iraq) from the time of the earliest records in the mid 4th millennium BC until the rise of Babylonia in the late 3rd millennium BC. The term "Sumerian" applies to all speakers of the Sumerian language. Sumer is considered the first settled society in the world to have manifested all the features needed to qualify fully as a "civilization".

Background
The term "Sumerian" is an exonym first applied by the Akkadians. The Sumerians called themselves "the black-headed people" (sag-gi-ga) and their land "land of the civilized lords" (ki-en-gir). The Akkadian word Shumer possibly represents this name in dialect. The Sumerians were a non-Semitic people and were at one time believed to have been invaders, as a number of linguists believed they could detect a substrate language beneath Sumerian. However, the archaeological record shows clear uninterrupted cultural continuity from the time of the Early Ubaid period (5200-4500 BC C-14, 6090-5429 calBC) settlements in southern Mesopotamia. The Sumerian people who settled here farmed the lands in this region that were made fertile by silt deposited by the Tigris and the Euphrates rivers.

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