The History of Sumer

The history of Sumer, taken to include the prehistoric Ubaid and Uruk periods, spans the 5th to 3rd millennia BC, ending with the downfall of the Third Dynasty of Ur around 2004 BC, followed by a transition period of Amorite states before the rise of Babylonia in the 18th century BC.

The Sumerians claimed that their civilization had been brought, fully formed, to the city of Eridu (possibly from Dilmun, later identified with Bahrain) by their god Enki or by his advisor or Abgallu (from Ab=water, Gal=great, Lu=man), Adapa U-an (the Oannes of Berossus). This claim may be in part based upon fact, as Eridu was then on the coastline of the Persian Gulf, and was the oldest city of southern Mesopotamia.

The list of Sumerian kings contains a traditional list of the early dynasties; however much of it is likely mythical, and only a few of the early names have been authenticated through archaeology. The best-known dynasty, that of Lagash, is not listed there at all.

Background

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 BC 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.

The challenge for any population attempting to dwell in Iraq's arid southern floodplain, where rainfall is currently less than 5 inches a year, was to manage the Tigris and Euphrates rivers to supply year-round water for farming and drinking. The Sumerian language has many terms for canals, dikes, and reservoirs. Sumerian speakers were farmers who moved down from the north after perfecting irrigation agriculture there. The Ubaid pottery of southern Mesopotamia has been connected via Choga Mami Transitional ware to the pottery of the Samarra period culture (c. 5700-4900 BC C-14, 6640-5816 BC calBC) in the north, who were the first to practice a primitive form of irrigation agriculture along the middle Tigris River and its tributaries. The connection is most clearly seen at Tell Awayli (Oueilli, Oueili) near Larsa, excavated by the French in the 1980s, where 8 levels yielded pre-Ubaid pottery resembling Samarran ware. Farming peoples spread down into southern Mesopotamia because they had developed a temple-centered social organization for mobilizing labor and technology for water control, enabling them to survive and prosper in a difficult environment.

Ubaid Period

A distinctive style of fine quality painted pottery spread throughout Mesopotamia and the Persian Gulf region in the Ubaid period, when the ancient Sumerian religious center of Eridu was gradually surpassed in size by the nearby city of Uruk. The archaeological transition from the Ubaid period to the Uruk period is marked by a gradual shift from painted pottery domestically produced on a slow wheel, to a great variety of unpainted pottery mass-produced by specialists on fast wheels. The date of this transition, from Ubaid 4 to Early Uruk, is in dispute, but calibrated radiocarbon dates from Tell Awayli would place it as early as 4500 BC.

Uruk Period

By the time of the Uruk period (4500-3100 BC calibrated), the volume of trade goods transported along the canals and rivers of southern Mesopotamia facilitated the rise of many large temple-centered cities where centralized administrations employed specialized workers. It is fairly certain that it was during the Uruk period that Sumerian cities began to make use of slave labor (Subartu) captured from the hill country, and there is ample evidence for captured slaves as workers in the earliest texts. Artifacts, and even colonies of this Uruk civilization have been found over a wide area - from the Taurus Mountains in Turkey, to the Mediterranean Sea in the west, and as far east as Central Iran.

The Uruk period civilization, exported by Sumerian traders and colonists (like that found at Tell Brak), had an effect on all surrounding peoples, who gradually evolved their own comparable, competing economies and cultures. The cities of Sumer could not maintain remote, long-distance colonies by military force.

The end of the Uruk period coincided with the Priora oscillation, a dry period from c. 3200-2900 BC that marked the end of a long wetter, warmer climate period from about 9,000 to 5,000 years ago, called the Holocene climatic optimum. When the historical record opens, the Sumerians appear to be limited to southern Mesopotamia — although very early rulers such as Lugal-Anne-Mundu are indeed recorded as expanding to neighboring areas as far as the Mediterranean, Taurus and Zagros, and not long after legendary figures like Enmerkar and Gilgamesh, who are associated in mythology with the historical transfer of culture from Eridu to Uruk, were supposed to have reigned.