The first epoch is a history of cosmogony and cosmology. Emanationism is an idea in the cosmology or cosmogony of certain religious or philosophical systems. Absence is the key image for her metaphysics, cosmology, cosmogony, and theodicy. Yet, there is little ambiguity between cosmogony and cosmology in terms of the humanities. This dualistic cosmogony influenced later Iranian developments such as Manichaeism, Mazdakism, and Zurvanism. The post-Vedic texts of Hinduism offer multiple theories of cosmogony, many involving Brahma. Later in the Orphic cosmogony, first came Thesis ("disposer"), whose ineffable nature is unexpressed. In earliest Greek philosophy, the cosmogony of Anaximander is based on these mythical beliefs. This article merely gives an overview of Dogon religion and some aspects of Dogon cosmogony. The collision of these forces produced the cosmic harmony according to the Greek cosmogony (Hesiod). The serpent plays an active role in Dogon religion and cosmogony. Ananke ("necessity") in Orphic cosmogony. It is the first known Greek mythical cosmogony. It is one of the most significant treatises in Chinese cosmogony. Sandage even proposed new theories of cosmogony to explain this discrepancy.