Classification
900 - History & geography
134
320 - Political science
81
325 - International migration & colonization
47
330 - Economics
29
306 - Culture & institutions
25
909 - World history
23
700 - The arts; fine & decorative arts
19
940 - History of Europe
17
941 - British Isles
17
340 - Law
13
800 - Literature & rhetoric
13
300 - Social sciences
11
327 - International relations
11
809 - History, description & criticism
11
100 - Philosophy & psychology
10
140 - Specific philosophical schools
10
301 - Sociology & anthropology
10
333 - Economics of land & energy
10
338 - Production
10
380 - Commerce, communications & transportation
10
960 - History of Africa
10
200 - Religion
9
305 - Social groups
9
370 - Education
8
950 - History of Asia; Far East
8
363 - Other social problems & services
7
610 - Medicine & health
7
576 - Genetics & evolution
6
000 - Computer science, information & general works
5
297 - Islam, Babism & Bahai Faith
5
304 - Factors affecting social behavior
5
720 - Architecture
5
780 - Music
5
170 - Ethics
4
303 - Social processes
4
332 - Financial economics
4
509 - Historical, geographic & persons treatment
4
791 - Public performances
4
956 - Middle East (Near East)
4
355 - Military science
3
378 - Higher education
3
600 - Technology
3
820 - English & Old English literatures
3
907 - Education, research & related topics
3
944 - France & Monaco
3
266 - Missions
2
321 - Systems of governments & states
2
337 - International economics
2
341 - Law of nations
2
361 - Social problems & social welfare in general
2
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