Sumerian Lands, Cities and Languages

Sumer was the low, flat alluvial plain of southern Mesopotamia, in what is now Iraq. From the late fourth millennium BCE, settlements grew beside the Tigris and Euphrates and the channels that carried their water toward the Persian Gulf. In the third millennium, Sumer contained rival city-states and, at different times, formed part of larger kingdoms. Sumerian and Akkadian were both used in Mesopotamia, while the political and geographical meanings of “Sumer” and “Akkad” changed over time.

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A delta of channels, fields and marshes

River floods deposited silt and gradually built low natural levees, raised banks along the channels. As channels shifted, abandoned branches could become marshes or stagnant pools. People used natural streams and dug canals for irrigation, boat transport and fishing. Sediment cores and soil samples preserve water organisms and other traces, allowing researchers to distinguish freshwater, brackish and saltwater marshes, lakes, canals and levees.

At Abu Tbeirah, near ancient Ur, a third-millennium settlement stood beside a winding channel across a floodplain and marsh. A flood later cut the channel off from its former course, but residents used the abandoned section as a small river harbor. Such a sequence shows how a familiar settlement could retain access to boats after the main water flow moved away. The present desert landscape around Ur is not a direct guide to the ancient shoreline: the head of the Gulf once extended much farther inland, and river sediment gradually pushed the delta southward and eastward.

At Lagash, now Tell al-Hiba, archaeological teams combine drone imagery with sediment cores and soil sampling to locate buried waterways and reconstruct changes in land and water. Their samples record marshes, lakes, canals and levees in the city’s surroundings. As the Gulf shoreline receded during the third millennium and river branches shifted, canals carried irrigation water and connected urban sites by boat.

Cities and political territories

Urban growth began before the Early Dynastic period, conventionally dated about 2900–2350 BCE. Uruk was already a major city in the late fourth millennium. By the third millennium, Ur, Nippur, Shuruppak, Umma and Lagash were among the important centers. A city’s influence extended into surrounding farmland, smaller settlements, shrines and canals; these territories could change through warfare, alliances and royal administration.

Lagash also names a city-state, not only the mound at Tell al-Hiba. The polity comprised three cities, including Lagash, Girsu and Nina, linked by waterways. In the Early Dynastic period, rulers of Lagash and neighboring Umma contested fertile land between their territories. The Akkadian Empire extended its rule across southern Mesopotamia in the twenty-fourth to twenty-second centuries BCE; the Third Dynasty of Ur later ruled from Ur during the twenty-first century BCE. Each state incorporated local cities into a wider administration.

Nippur illustrates how cities could have different roles within this network. It was a major sanctuary of Enlil and a place where kings ruling from elsewhere sponsored temples and sought divine recognition. Umma and Lagash, by contrast, were political and agricultural centers with neighboring fields and watercourses under active dispute. Sumerian urban life included sacred centers, capitals, provincial cities and villages.

Sumerian, Akkadian and changing identities

Sumerian is a language with no relatives that scholars have securely identified, while Akkadian belongs to the Semitic language family. Both appear in Mesopotamian texts. Scribes wrote them in cuneiform, a system of wedge-shaped marks pressed into clay tablets, first developed for Sumerian and later adapted for Akkadian. Akkadian names and texts also occur in southern cities, and the two languages appear together in administrative and scholarly settings.

The labels Sumer and Akkad were also geographical and political terms whose use changed over time. In many historical accounts, Sumer refers to the south of lower Mesopotamia and Akkad to lands farther north. Historian Gonzalo Rubio argues that Old Babylonian scribes helped shape a southern identity by collecting and teaching Sumerian literary traditions after Sumerian had ceased to be an everyday language. This interpretation centers on the schools and literary works that carried Sumerian forward.

Neither a language nor a regional label by itself identifies a homogeneous population.

A spoken language preserved in later schools

The earliest written evidence for Sumerian comes from the late fourth millennium BCE, although those first tablets are mainly administrative records rather than full sentences. Sumerian remained a spoken language during much of the third millennium. When everyday speech shifted toward Akkadian is difficult to date precisely; estimates often place the change in the early second millennium BCE, and it may have varied among communities.

Sumerian continued in royal, ritual and scholarly writing after it was no longer widely spoken. In Old Babylonian schools of the early second millennium BCE, students copied Sumerian words and literary compositions and paired some words with Akkadian equivalents. The language remained part of education and learned practice even as spoken language changed. Many surviving copies belong to this later school tradition, so a tablet’s copying date can be much later than the period represented in its composition.