Classification
900 - History & geography
118
320 - Political science
52
355 - Military science
39
940 - History of Europe
27
909 - World history
16
300 - Social sciences
12
301 - Sociology & anthropology
12
700 - The arts; fine & decorative arts
12
350 - Public administration & military science
11
306 - Culture & institutions
9
140 - Specific philosophical schools
8
941 - British Isles
8
100 - Philosophy & psychology
6
303 - Social processes
5
330 - Economics
5
327 - International relations
4
380 - Commerce, communications & transportation
4
800 - Literature & rhetoric
4
947 - Eastern Europe; Russia
4
956 - Middle East (Near East)
4
973 - United States
4
000 - Computer science, information & general works
3
305 - Social groups
3
333 - Economics of land & energy
3
363 - Other social problems & services
3
930 - History of ancient world to ca. 499
3
944 - France & Monaco
3
950 - History of Asia; Far East
3
960 - History of Africa
3
120 - Epistemology, causation & humankind
2
200 - Religion
2
302 - Social interaction
2
304 - Factors affecting social behavior
2
325 - International migration & colonization
2
340 - Law
2
400 - Language
2
417 - Dialectology & historical linguistics
2
418 - Standard usage & applied linguistics
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
610 - Medicine & health
2
780 - Music
2
809 - History, description & criticism
2
910 - Geography & travel
2
943 - Central Europe; Germany
2
160 - Logic
1
172 - Political ethics
1
297 - Islam, Babism & Bahai Faith
1
338 - Production
1
341 - Law of nations
1
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