Classification
200 - Religion
320 - Political science
557
330 - Economics
557
340 - Law
56
900 - History & geography
53
370 - Education
46
100 - Philosophy & psychology
18
300 - Social sciences
17
800 - Literature & rhetoric
13
170 - Ethics
8
576 - Genetics & evolution
7
700 - The arts; fine & decorative arts
7
140 - Specific philosophical schools
4
630 - Agriculture & related technologies
4
296 - Judaism
2
400 - Language
2
610 - Medicine & health
2
326 - Slavery & emancipation
1
530 - Physics
1