Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Heresy is the rejection of one or more established beliefs of a particular religious body, or adherence to other beliefs. Christian heresy refers to beliefs and practices that were deemed to be heretical by one or more of the established Christian churches. This list identifies beliefs and practices that have thus been categorized at one time or another as Christian heresy. The term "heresy" most commonly refers to those beliefs which were declared to be anathema by the Catholic Church prior to the schism of 1054. After the schism, both the Catholic Church and the Orthodox Church continued to use the term to identify what it considered to be unorthodox beliefs and practices. While individual Protestant churches have also used the concept in proceedings against individuals and groups deemed to be heretical by those churches, the lack of a central doctrinal authority has meant that no belief or practice can be officially pronounced to be a heresy from the Protestant perspective.