Classification
900 - History & geography
113
930 - History of ancient world to ca. 499
42
300 - Social sciences
39
700 - The arts; fine & decorative arts
17
933 - Palestine to 70
15
140 - Specific philosophical schools
13
330 - Economics
8
000 - Computer science, information & general works
7
301 - Sociology & anthropology
7
320 - Political science
7
600 - Technology
7
620 - Engineering & allied operations
7
936 - Europe north & west of Italy to ca. 499
7
200 - Religion
6
363 - Other social problems & services
6
500 - Natural sciences & mathematics
6
551 - Geology, hydrology & meteorology
6
720 - Architecture
6
380 - Commerce, communications & transportation
5
410 - Linguistics
5
333 - Economics of land & energy
4
400 - Language
4
530 - Physics
4
306 - Culture & institutions
3
414 - Phonology & phonetics
3
540 - Chemistry & allied sciences
3
576 - Genetics & evolution
3
581 - Specific topics in natural history
3
630 - Agriculture & related technologies
3
939 - Other parts of ancient world to ca. 640
3
005 - Computer programming, programs & data
2
100 - Philosophy & psychology
2
297 - Islam, Babism & Bahai Faith
2
304 - Factors affecting social behavior
2
307 - Communities
2
411 - Writing systems
2
550 - Earth sciences
2
590 - Animals (Zoology)
2
741 - Drawing & drawings
2
780 - Music
2
800 - Literature & rhetoric
2
942 - England & Wales
2
004 - Data processing & computer science
1
006 - Special computer methods
1
009 - [Unassigned]
1
201 - Religious mythology & social theology
1
296 - Judaism
1
305 - Social groups
1
341 - Law of nations
1
393 - Death customs
1
more ...