Satanism is a group of ideological and philosophical beliefs based on Satan. Contemporary religious practice of Satanism began with the founding of the atheistic Church of Satan by Anton LaVey in the United States in 1966, although a few historical precedents exist. Prior to the public practice, Satanism existed primarily as an accusation by various Christian groups toward perceived ideological opponents, rather than a self-identity or valid religious belief. Satanism, and the concept of Satan, has also been used by artists and entertainers for symbolic expression. Accusations that various groups have been practicing Satanism (in a ‘Devil-worship’ interpretation) have been made throughout much of Christian history.