Classification
100 - Philosophy & psychology
800 - Literature & rhetoric
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
320 - Political science
1
333 - Economics of land & energy
1
370 - Education
1
400 - Language
1
520 - Astronomy & allied sciences
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1