STACK 1
B - Philosophy, Psychology, Religion
Subclass BP - Islam. Bahaism. Theosophy, etc
STACK 2
D - World History and History of Europe, Asia, Africa, Australia, New Zealand, etc
Subclass DS 35-61 - Islamic World & the Middle East
STACK 4
N - Fine Arts
Subclass N 7560-8266 - Visual Arts - Special Subjects of art
Subclass NA 1-9428 - Architecture - Architecture. History. Special Classes of buildings.
Subclass NK 1648-1678 - Decorative Arts - Religious Art