Sumer and Mesopotamia — The First Cities and the Invention of Civilization
Sumer was the world’s first civilization, a society of city-states that emerged in the southern part of Mesopotamia, the land between the Tigris and Euphrates rivers, around 4000 BCE. The Sumerians invented writing, created the first codes of law, developed mathematics and astronomy, and established the institutional framework of urban life that all subsequent civilizations would build upon. Understanding Sumer is essential for understanding the origins of civilization itself.
The Sumerians called their land “the land of the black-headed people” and their civilization Ki-en-gir, meaning “place of the civilized lords.” They were not the first people to live in Mesopotamia, but they were the first to create the complex of urban institutions — temples, palaces, markets, schools, and courts — that we recognize as civilization. The innovations of Sumer spread throughout the ancient Near East and eventually to the entire world.
The Sumerian City-States
Sumer was not a unified nation but a collection of independent city-states, each centered on a temple complex dedicated to the city’s patron deity. The major cities included Ur, Uruk, Lagash, Nippur, Kish, and Eridu. Each city-state had its own ruler, its own government, and its own patron god. The cities were surrounded by agricultural land irrigated by canals drawn from the Tigris and Euphrates.
The center of each city was the temple complex, which housed the city’s patron deity and was the focus of religious, economic, and political life. The temple was not just a place of worship but a major economic institution that owned land, employed workers, stored grain, and distributed goods. The temple’s chief priest, the ensi, was both the religious leader and the secular ruler in the early period.
The city of Uruk, which reached a population of perhaps 40,000 by 3000 BCE, was the largest and most influential Sumerian city. It was here that the first examples of writing were discovered, and it is the city of the legendary king Gilgamesh, hero of the world’s oldest known work of literature. The Eanna temple district in Uruk was a vast complex of monumental buildings that demonstrated the wealth and organizational capacity of Sumerian civilization.
The Invention of Writing
The most significant Sumerian innovation was writing. The first writing system, cuneiform, developed around 3400 BCE out of a system of token-based accounting used for temple administration. The earliest written documents were not literature or history but administrative records — lists of goods, accounts of transactions, and inventories of temple property.
Over time, the writing system evolved from pictographic symbols representing objects to phonetic symbols representing sounds. This made writing flexible enough to represent any concept or utterance. Scribes used a wedge-shaped stylus to press marks into soft clay tablets, which were then baked to preserve the text. Tens of thousands of these tablets have survived, providing an extraordinary record of Sumerian life.
Writing enabled the development of literature, law, and science. The Epic of Gilgamesh, the most famous work of Sumerian literature, was written down in cuneiform around 2100 BCE. The epic tells the story of Gilgamesh, king of Uruk, and his quest for immortality after the death of his friend Enkidu. Its themes of friendship, mortality, and the meaning of life remain as powerful today as they were four thousand years ago.
Sumerian Religion
Sumerian religion was polytheistic, with a pantheon of gods and goddesses who controlled the forces of nature and human destiny. The chief gods were An (sky), Enlil (air and storms), Enki (wisdom and fresh water), and Inanna (love and war). Each city had its own patron deity, and the temple was the center of civic and religious life.
The Sumerians believed that humans were created by the gods to serve them by providing food, drink, and shelter. The purpose of life was to serve the gods, and the purpose of government was to organize that service. Kings derived their authority from the gods and were responsible for maintaining the temples and performing the rituals that ensured divine favor.
The Sumerian conception of the afterlife was grim. The underworld, called Kur, was a dark, dusty place where the dead existed as shadows, eating dust and drinking muddy water. There was no reward for the righteous or punishment for the wicked in the Sumerian afterlife. This bleak vision of what awaited after death gave urgency to the Sumerian pursuit of fame and achievement in this world.
Sumerian Technology and Science
The Sumerians were remarkable inventors. They developed the wheel, the plow, the sailboat, and the potter’s wheel. They built extensive irrigation systems that turned the arid Mesopotamian plain into fertile farmland. They developed metallurgy, working with copper, bronze, gold, and silver to create tools, weapons, and jewelry.
Sumerian mathematics was based on the sexagesimal system — a base-60 system that gave us 60 minutes in an hour, 60 seconds in a minute, and 360 degrees in a circle. Sumerian mathematicians could solve complex problems involving geometry and algebra. They developed a sophisticated system of weights and measures that facilitated trade and administration.
Sumerian astronomy was based on careful observation of the heavens. Sumerian priests tracked the movements of the planets, recorded eclipses, and developed a lunar calendar. The Sumerian calendar had twelve months of thirty days, with an extra month added periodically to keep the calendar aligned with the seasons. The seven-day week originated in Sumerian astronomy, with days named for the seven celestial bodies known to the ancients.
The Legacy of Sumer
Sumerian civilization declined around 2000 BCE as Semitic peoples, particularly the Amorites and Babylonians, became dominant in Mesopotamia. But the Sumerian legacy was enduring. The Akkadians, Babylonians, and Assyrians all adopted Sumerian writing, religion, and legal traditions. Cuneiform writing continued to be used in Mesopotamia for over two thousand years after the Sumerian language ceased to be spoken.
The Sumerian legacy extends to our daily lives in ways we rarely recognize. Our division of the day into 24 hours, the hour into 60 minutes, and the minute into 60 seconds comes from Sumerian mathematics. The signs of the zodiac and the practice of astrology are Sumerian innovations. The agricultural practices, legal concepts, and religious ideas that emerged from Sumer shaped the civilizations that followed.
The relationship between Sumer and later Mesopotamian empires is explored in the entries on the Babylonian Empire and the Assyrian Empire, which built upon Sumerian foundations to create their own imperial systems.
Frequently Asked Questions
What did the Sumerians invent?
The Sumerians invented writing (cuneiform), the wheel, the plow, the sailboat, irrigation systems, the sexagesimal number system, and the first codes of law.
What was the most important Sumerian city?
Uruk was the largest and most influential Sumerian city, with a population of perhaps 40,000 by 3000 BCE. It was the city of the legendary king Gilgamesh.
What was Sumerian religion like?
Sumerian religion was polytheistic, with gods associated with natural forces. The purpose of human life was to serve the gods. The Sumerian afterlife was a grim underworld with no reward or punishment.
How did Sumerian civilization end?
Sumerian civilization gradually declined as Semitic peoples became dominant in Mesopotamia. The Sumerian language ceased to be spoken but continued to be used as a written language for centuries.
Conclusion
Sumer was the world’s first civilization, the society in which the key elements of urban life — cities, writing, law, organized religion, and systematic agriculture — first appeared. The Sumerians created institutions and technologies that shaped the development of all subsequent civilizations in the ancient Near East and beyond. The wheel, writing, mathematics, and the division of time all have their origins in Sumer. Understanding Sumer is essential for understanding the origins of civilization itself.