Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
13
530 - Physics
4
170 - Ethics
3
370 - Education
3
400 - Language
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
140 - Specific philosophical schools
2
300 - Social sciences
2
340 - Law
2
380 - Commerce, communications & transportation
2
791 - Public performances
2
200 - Religion
1
320 - Political science
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1