The evolution of the history of religious beliefs in human thought evolved simultaneously within the context of the physical and environmental barriers encountered as part of the history of the human condition, commencing in consciousness in the hominid species of Homo sapiens. From environmental awareness of the elements of animism, then onto polytheism, and eventually to monotheism, religious beliefs have been an integral part of human abstract thought that has performed as an element of comfort, as well as accepted social behaviours, within the community of people whom they were created to assist. The research on the 'Origin of God' used analysis on current philosophical, as well as historical prototypes to identify how and why the concept of God evolved within the human brain simultaneous to the development of abstract thought. Each of the twelve current major religions are analyzed and compared within the timeframe of their origin and region of development and reasons as to why, where, and when they developed are examined from a historical viewpoint.