Charting the rise of religion from Stone Age spirituality to the recent spread of Christianity in Africa, Asia, and South America, Discovering God asks the age–old question, if god was present from the beginning of time, why did god wait to reveal god's self to humans until (according to their respective traditions) Moses, Jesus, Muhammad, the Buddha, etc., came along? Stark asks, why a variety of world religions all sprang up at about the same time (referred to as the Axial Age). And Stark asks, why do many religions seem to share similar features? As the title suggests, Stark's thesis will be that god was here all along, and humans "discovered" (not invented) god in keeping with their own intellectual and spiritual evolution.