Classification
320 - Political science
5
900 - History & geography
4
940 - History of Europe
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
306 - Culture & institutions
1
330 - Economics
1
336 - Public finance
1
380 - Commerce, communications & transportation
1
600 - Technology
1
617 - Surgery & related medical specialties
1
641 - Food & drink
1
647 - Management of public households
1
700 - The arts; fine & decorative arts
1
780 - Music
1
791 - Public performances
1
800 - Literature & rhetoric
1
909 - World history
1