Christianity
- 20302
- The Legend of the Cathars
- Information and pictures relating to the history of the Cathars. Can also order "Reflections on Secret Gnostic Traditions."
- 20303
- Voltaire on the Wars against the Cathars of the Languedoc
- An annotated version of Voltaire's work in French with an English translation and notes in English. Essai sur les mœurs et l'esprit des nations, (1756), ch LXII, "De la Croisade Contre les Languedociens"
- 20304
- Bogomilism in Macedonia
- Article in a Macedonian nationalist site arguing that Bogomilism emerged in Macedonia.
- 20306
- Bogomils of Bulgaria and Bosnia
- An article claiming that the heretical sect were early Protestants. Written from a Baptist perspective.
- 20307
- Bosnian Church
- An indigenous church of Bosnia which existed in the Middle Ages. The article argues that the Bosnian Church was orthodox if autonomous and not infected by the Bogomil heresy.
- 20308
- Beguines & Beghards
- Article in the Catholic Encyclopedia, which makes it clear that the Beguines were not regarded as heretics as such.
- 20310
- Christian Heresy
- A general Wikipedia article which also contains some heresies later than the early church period. Heresies are grouped into a number of categories, such as Christological, institutional, textual, and other.
- 20311
- Classic Heresies
- Short descriptions of Arianism, Docetism, Ebionitism, Pelagianism, Eutychianism, Nicolaitanism and Montanism.
- 20312
- Heresies, Authority, Quarrels and Words
- An account and analysis of belief systems declared heretical by the Catholic Church. Site is sharply critical of authority and religion, and especially of the Church.
- 20313
- Story of the Church - Early Heresies
- A list of heresies with some of the responses of the Church.
- 20314
- Tritheism
- A Wikipedia article with a section on the historical uses of the term in Christianity.
- 20315
- Tritheists
- A Catholic Encyclopedia article on versions of Tritheism in early Christianity and in the Middle Ages.