The science of comparative mythology, like almost all the sciences, exact and inexact, is largely a product of the nineteenth century; its origin and development followed closely upon that of comparative philology, the science devoted to language and literature. The phenomenal growth of comparative philology itself was due primarily to the recognition that both Sanskrit, the language of the oldest sacred literature of the Hindu peoples, as well as Zend, or Old Persian, the language of the oldest sacred literature of the Iranian peoples, were Indo-European languages; that is, they belong to the same family of languages as Greek and Latin. The intense revival of Indo-European philology that followed was therefore based largely on the ancient literatures of the Greeks, Hindus, and Iranians, and this led naturally and directly to a comparative study of the myths and legends as related and revealed in them. Moreover, toward the end of the first half of the nineteenth century, a new and unexpected field of study was opened to comparative mythology. For it was about this time that the Egyptian hieroglyphic script and the Babylonian cuneiform script were deciphered, and much new mythological material was gradually recovered. What added impetus and excitement to this field of research was the fact that it offered a more scientific approach to the study of the Old Testament. For it soon became evident that some of the Old Testament material was mythological in character, since it presented clear parallels and resemblances to the myths recovered from Egyptian and Babylonian sources. And so the study of comparative mythology, following in the footsteps of philology and linguistics, was no longer restricted to the ancient Indo-Europeans; it now included the ancient Semites and Egyptians. But it is a known fact that in the long stretch of time between approximately 3500 and 2000 B. C. it was the Sumerians who represented the dominant cultural group of the entire Near East. It was the Sumerians who developed and probably invented the cuneiform system of writing; who developed a well integrated pantheon together with spiritual and religious concepts which influenced profoundly all the peoples of the Near East; who, finally, created and developed a literature rich in content and effective in form. Moreover, the following significant fact must be borne in mind. By the end of the third millennium B. C. Sumer had It is this practically unknown Sumerian mythology which I have the privilege of sketching briefly in the pages to follow. The sketch will begin with the myths centering about the creation and organization of the universe and the creation of man. It will continue with the myths of Kur, consisting of three versions of a dragon-slaying motif and of the poem "Inanna's Descent to the Nether World." It will conclude with an outline of three interesting miscellaneous myths. All in all, therefore, it is hoped that the reader will obtain a fairly adequate cross-section of Sumerian mythology, a cross-section which, considering the age of the culture involved, is remarkably broad in scope and surprisingly full in detail.THE SCOPE AND SIGNIFICANCE OF SUMERIAN MYTHOLOGY