Classification
100 - Philosophy & psychology
200 - Religion
400 - Language
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
3
140 - Specific philosophical schools
1
300 - Social sciences
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
410 - Linguistics
1
780 - Music
1
900 - History & geography
1