Classification
320 - Political science
5,614
330 - Economics
5,613
900 - History & geography
1,352
340 - Law
1,128
300 - Social sciences
670
576 - Genetics & evolution
667
630 - Agriculture & related technologies
122
700 - The arts; fine & decorative arts
87
200 - Religion
50
100 - Philosophy & psychology
43
170 - Ethics
26
800 - Literature & rhetoric
20
370 - Education
18
610 - Medicine & health
16
160 - Logic
8
500 - Natural sciences & mathematics
8
400 - Language
6
600 - Technology
5
140 - Specific philosophical schools
4
720 - Architecture
3
780 - Music
3
380 - Commerce, communications & transportation
2
520 - Astronomy & allied sciences
2
820 - English & Old English literatures
2
258 - [Unassigned]
1
301 - Sociology & anthropology
1
325 - International migration & colonization
1
333 - Economics of land & energy
1
530 - Physics
1
913 - Geography of & travel in ancient world
1
920 - Biography, genealogy & insignia
1