The earliest Sumerian records seem to be anterior to 4000 B.C. Shortly after that period Babylonia was invaded by Semites, who became the ruling race.
Deliberate inversion certainly occurs in the Sumerian documents, and it is highly probable that this was a priestly mode of writing, but never of speaking; at any rate, not when the language was in common use.
Probably the oldest head-dress is the circular close-fitting cap (plain or braided), which, according to Meyer, is of Sumerian (non-Semitic) origin.
Briefly considered there are six most striking proofs that the Sumerian was based on a primitive agglutinative language.
Professor Paul Haupt may be termed the father of Sumerian etymology, as he was really the first to place this study on a scientific basis in his Sumerian Family Laws and Akkadian and Sumerian Cuneiform Texts.
Examples of this, the leading principle which was followed by the framers of the Sumerian system, might be cited almost ad infinitum.
On the other hand, grammatical and constructional examples may be cited from other more modern agglutinative idioms, in order to establish the truly linguistic character of the Sumerian peculiarities and to disprove the Halevyan contentions that Sumerian is really not a language at a11.4 It is not surprising that Halevy's view as to the cryptographic nature of Sumerian should have arisen.
The study of the Sumerian vocabulary falls logically into three divisions.
The excavations in the other larger mound resulted in the discovery of the remains of buildings containing objects of all sorts in bronze and stone, dating from the earliest Sumerian period onward, and enabling us to trace the art history of Babylonia to a date some hundreds of years before the time of Gudea.
Sumerian, in fact, predominated, not only on the historical monuments, but also throughout the religious literature, a fact which militates against assigning the newly discovered Semitic legend to the period of these early Sumerian texts.