Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
5
300 - Social sciences
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
170 - Ethics
3
320 - Political science
3
370 - Education
2
600 - Technology
2
900 - History & geography
2
200 - Religion
1
301 - Sociology & anthropology
1
340 - Law
1
400 - Language
1
530 - Physics
1