Classification
320 - Political science
11
900 - History & geography
9
700 - The arts; fine & decorative arts
3
300 - Social sciences
2
600 - Technology
2
800 - Literature & rhetoric
2
940 - History of Europe
2
943 - Central Europe; Germany
2
001 - Knowledge
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
150 - Psychology
1
170 - Ethics
1
200 - Religion
1
306 - Culture & institutions
1
330 - Economics
1
336 - Public finance
1
340 - Law
1
380 - Commerce, communications & transportation
1
530 - Physics
1
610 - Medicine & health
1
617 - Surgery & related medical specialties
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
641 - Food & drink
1
647 - Management of public households
1
780 - Music
1
791 - Public performances
1
909 - World history
1