B - Philosophy, Psychology, Religion
Subclass BR - Christianity
BR 1-1725 Christianity
BR 60-67 Early Christian literature. Fathers of the Church, etc.
BR 115 Christianity in relation to special subjects
BR 130-133.5 Christian antiquities. Archaeology. Museums
BR 140-1510 History
BR 160-481 By period
BR 160-275 Early and medieval
BR 500-1510 By region or country
For further breakdown the "B" LC Call number subclasses, see the LOC Classification outline for philosophy, pyschology, and religion.