Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
370 - Education
400 - Language
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
300 - Social sciences
1
320 - Political science
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
520 - Astronomy & allied sciences
1
530 - Physics
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
800 - Literature & rhetoric
1
900 - History & geography
1