Classification
900 - History & geography
800 - Literature & rhetoric
7
140 - Specific philosophical schools
6
100 - Philosophy & psychology
5
300 - Social sciences
5
301 - Sociology & anthropology
4
200 - Religion
3
320 - Political science
3
576 - Genetics & evolution
3
700 - The arts; fine & decorative arts
3
120 - Epistemology, causation & humankind
2
410 - Linguistics
2
809 - History, description & criticism
2
170 - Ethics
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
520 - Astronomy & allied sciences
1
830 - Literatures of Germanic languages
1