Belief in the existence of God and non-belief are counterparts of one another and have a shared history in the United States. At the same time, those histories are distinct and have distinct features. This course is an historical exploration of non-belief in God in a country in which religion and religious faith has comprised its very core and shaped its character. What has it meant to be an "a-theist" in a country so dominated by various forms of theism? If America is, as G. K. Chesterton has said, "a nation with the soul of a church," where have been the spaces - intellectually, culturally, socially, aesthetically - for the "unchurched?"