From around 3400 BCE, a distinctive Sumerian culture began to emerge. The difference between the Sumerians and their predecessors was purely linguistic. The Sumerians used a unique language of their own that became the common speech of their society, one of the foremost early civilizations. The Sumerian culture was strong and vibrant, with a highly organized social structure and a set of complex belief systems. Above all, the Sumerians were pioneers of writing and mathematics.
From the middle of the fourth millennium BCE onward, the cities of Sumer began to grow in size and number. Besides Uruk, they included Ur,
This harp, found in the royal tombs at Ur, has been partially restored. Although its main body is modern, the gold decorative head of a bull is around 4,500 years old.
THE SUMERIAN WORLD
Nippur, Adab, Eridu, Isin, Kish, Lagash, and Larsa. There was no central government to unite these cities. Each city was independent, although their inhabitants all thought of themselves as being Sumerian. The temple in each city occupied a crucial position in Sumerian life. The god of the temple was considered to be the giver of fertility, and the temple itself owned most of the city’s lands and herds of cattle.
Reflecting its important sociological position, the temple was the most conspicuous structure in any town or village. It usually consisted of a number of terraces, forming the typical Mesopotamian temple tower called a ziggurat. During the Uruk period, temples were decorated with mosaics. These mosaics consisted of cones made of clay or stone with colored tips that were hammered into the clay walls to create colorful patterns.