Classification
576 - Genetics & evolution
900 - History & geography
40
320 - Political science
27
700 - The arts; fine & decorative arts
15
330 - Economics
13
100 - Philosophy & psychology
10
400 - Language
7
140 - Specific philosophical schools
6
200 - Religion
5
340 - Law
5
370 - Education
5
410 - Linguistics
5
600 - Technology
5
304 - Factors affecting social behavior
4
333 - Economics of land & energy
4
380 - Commerce, communications & transportation
4
000 - Computer science, information & general works
3
300 - Social sciences
3
581 - Specific topics in natural history
3
800 - Literature & rhetoric
3
170 - Ethics
2
301 - Sociology & anthropology
2
363 - Other social problems & services
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1