Classification
301 - Sociology & anthropology
410 - Linguistics
900 - History & geography
3
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
200 - Religion
1
300 - Social sciences
1
320 - Political science
1
398 - Folklore
1
400 - Language
1
780 - Music
1
800 - Literature & rhetoric
1