The term monotheism is a very popular and well known concept in the study of religious belief and practice to identify God as only one Supreme Being. According to the sacred texts of the monotheistic religions, first human being was not only introduced with this concept but also was commissioned to convey this message to other human beings. As contrast to this, most modern historians are, more or less, confused by their own findings about its origin and development. Nevertheless, some of them agree to earlier view with their logical reasoning. In this present paper monotheism is, therefore, discussed from a brief historical survey in order that more explicit knowledge to be reflected on its origin and development.