Classification
410 - Linguistics
900 - History & geography
23
400 - Language
20
800 - Literature & rhetoric
9
340 - Law
6
140 - Specific philosophical schools
5
100 - Philosophy & psychology
3
200 - Religion
3
300 - Social sciences
3
700 - The arts; fine & decorative arts
3
330 - Economics
2
414 - Phonology & phonetics
2
000 - Computer science, information & general works
1
320 - Political science
1
333 - Economics of land & energy
1
370 - Education
1
380 - Commerce, communications & transportation
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
780 - Music
1
791 - Public performances
1
920 - Biography, genealogy & insignia
1