The world which he governed was a mountain; the creatures whom he had made lived underground. Eridu, on the other hand, was the home of the culture-god Ea, the god of light and beneficence, who employed his divine wisdom in healing the sick and restoring the dead to life. Rising each morning from his palace in the deep, he had given man the arts and sciences, the industries and manners of civilization. To him was due the invention of writing, and the first law-book was his creation. Eridu had once been a seaport, and it was doubtless its foreign trade and intercourse with other lands which influenced the development of its culture. Its cosmology was the result of its geographical position: the earth, it was believed, had grown out of the waters of the deep, like the ever-widening coast at the mouth of the Euphrates. Long before history begins, however, the cultures of Eridu and Nippur had coalesced. While Babylon seems to have been a colony of Eridu, Ur, the immediate neighbour of Eridu, must have been colonized from Nippur, since its moon-god was the son of El-hI of Nippur. But in the admixture of the two cultures the influence of Eridu was predominant.
We may call the early civilization of Babylonia Sumerian. The race who first developed it spoke an agglutinative language, and to them was due the invention of the pictorial hieroglyphs which became the running-hand or cuneiform characters of later days, as well as the foundation of the chief cities of the country and the elements of its civilization. The great engineering works by means of which the marshes were drained and the overflow of the rivers regulated by canals went back to Sumerian times, like a considerable part of later Babylonian religion and the beginnings of Babylonian law. Indeed Sumerian continued to be the language of religion and law long after the Semites had become the ruling race.
This article was originally based on content from the 1911 Encyclopędia Britannica. Update as needed.