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Main Tables

The main tables (schedules) contain the outline of the various disciplines of knowledge, arranged in 10 classes and hierarchically divided. They are numbered from 0 to 9. Class 4 is currently vacant, as its subject, linguistics, was moved to class 8 alongside literature.

Otherwise, each single-digit class is further divided into ten subclasses with two-digit numbers, and so on. Each further level of division is represented by a number one digit longer.

UDC contains over 62,000 Main numbers and over 10,000 Common auxiliaries

Main numbers

0
 GENERALITIES
1
 PHILOSOPHY. PSYCHOLOGY
2
 RELIGION. THEOLOGY
3
 SOCIAL SCIENCES
4
 VACANT
5
 NATURAL SCIENCES
6
 TECHNOLOGY
7
 THE ARTS
8
 LANGUAGE. LINGUISTICS. LITERATURE
9
 GEOGRAPHY. BIOGRAPHY. HISTORY

Main classes
(and some of the disciplines and sub-disciplines listed under each)

0
GENERALITIES
00
 PROLEGOMENA. FUNDAMENTALS OF KNOWLEDGE AND CULTURE
004
 Computer science
005
 Management
01
 BIBLIOGRAPHY
02
 LIBRARIANSHIP
030
 ENCYCLOPAEDIAS. GENERAL REFERENCE WORKS
050
 SERIAL PUBLICATIONS. PERIODICALS
06
 ORGANIZATIONS AND ASSOCIATIONS
069
 Museums
070
 NEWSPAPERS. JOURNALISM
08
 POLYGRAPHIES. COLLECTIVE WORKS
09
 MANUSCRIPTS. RARE AND REMARKABLE WORKS

1
 PHILOSOPHY. PSYCHOLOGY
101
 Nature and role of philosophy
11
 Metaphysics
13
 Philosophy of mind and spirit
14
 Philosophical systems
159.9
 PSYCHOLOGY
16
 Logic. Epistemology. Theory of knowledge
17
 Moral philosophy. Ethics

2
 RELIGION. THEOLOGY
 
21
 PREHISTORIC AND PRIMITIVE RELIGIONS
 
22
 RELIGIONS OF THE FAR EAST
 
23
 RELIGIONS OF THE INDIAN SUBCONTINENT. HINDUISM. JAINISM. SIKHISM
 
24
 BUDDHISM
 
25
 RELIGIONS OF ANTIQUITY. MINOR CULTS AND RELIGIONS
 
252
 Religions of Mesopotamia
 
254
 Religions of Iran
 
257
 Religions of Europe
 
26
 JUDAISM
 
27
 CHRISTIANITY
 
271
 Eastern church
 
272/279
 Western Church
 
272
 Roman Catholic church
 
274/278
 Protestant churches
 
28
 ISLAM
 
282
 Sunnite Islam
 
284
 Shi'ite Islam
 
285
 Babi-Baha'i
 
29
 MODERN SPIRITUAL MOVEMENTS

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3
SOCIAL SCIENCES
304
 Social questions. Social practice.
308
 Sociography. Descriptive studies of society
311
 STATISTICS
314
 DEMOGRAPHY
316
 SOCIOLOGY
32
 POLITICS
321
 Forms of political organization. States as political power
323
 Home affairs. Internal policy
324
 Elections. Plebiscites. Referendums
327
 International relations
328
 Parliaments. Congresses. Representation of the people. Governments
329
 Political parties and movements
33
 ECONOMICS
331
 Labour. Employment. Work. Labour economics. Organization of labour.
336
 Finance
338
 Economic policy. Management of the economy. Production. Services. Prices
339
 Trade. Commerce. International economic relations. World economy
34
 LAW. JURISPRUDENCE
341
 International law
342
 Public law. Constitutional law. Administrative law
343
 Criminal law
343.9
 Criminology
347
 Civil law
35
 PUBLIC ADMINISTRATION. GOVERNMENT
352/354
 Levels of administration. Local, regional, central administration
355/359
 MILITARY SCIENCE
36
 SAFEGUARDING THE MENTAL AND MATERIAL NECESSITIES OF LIFE
364
 SOCIAL WELFARE
368
 Insurance. Communal provision through sharing of risk
37
 EDUCATION
371
 Organization of educational and training system. School organization
374
Education and training out of school. Further education
378
Higher education. Universities. Academic study
379.8
Leisure
39
 ETHNOGRAPHY. FOLKLORE
391
Costume
392
Customs, manners, usage in private life
393
Death. Treatment of corpses. Funerals. Death rites
394
Public life. Social life. Life of the people
395
Social ceremonial. Etiquette. Good manners
398
Folklore in the strict sense.
396
FEMINISM

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5
MATHEMATICS AND NATURAL SCIENCES
 
502/504
Environmental sciences. Conservation of natural resources. Threats to the environment and protection
 
51
 MATHEMATICS
 
52
 ASTRONOMY
 
528
Geodesy, cartography
 
529
Chronology
 
53
 PHYSICS
 
54
CHEMISTRY
 
548
Crystallography
 
549
Mineralogy
 
55
 EARTH SCIENCES
 
551.5
Meteorology. Climatology
 
551.7
Stratigraphy
 
552
Petrology
 
553
Economic geology
 
556
Hydrology
 
56
 PALAEONTOLOGY
 
57
BIOLOGICAL SCIENCES
 
572
Anthropology
 
573
General biology
 
574
Ecology
 
575
 Genetics
 
576
Cytology
 
577
Biochemistry. Biophysics
 
578
Virology
 
579
Microbiology
 
58
 Botany
 
59
 Zoology

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6
APPLIED SCIENCES. MEDICINE. TECHNOLOGY
 
60
 Biotechnology
 
61
MEDICINE
 
619
 Veterinary medicine
 
62
ENGINEERING. TECHNOLOGY IN GENERAL
 
621
 Mechanical engineering
 
621.3
 Electrical engineering
 
621.38
Electronics
 
622
 Mining
 
623
 Military engineering
 
624
 Civil engineering
 
625.1/.5
Railway engineering
 
625.7/.8
Highway engineering
 
626/627
Hydraulic engineering
 
628
Public health engineering
 
629
 Vehicle engineering
 
63
AGRICULTURAL SCIENCES
 
630
Forestry
 
631/634
Farm management. Plant husbandry
 
635
Horticulture
 
636/638
Animal husbandry
 
639
 Hunting. Fishing
 
64
 HOME ECONOMICS
 
641/642
Cookery
 
643/649
 Household equipment and management
 
65
 MANAGEMENT
 
651
Office management
 
654
 Telecommunications
 
655
PRINTING. PUBLISHING. BOOK TRADE
 
656
 TRANSPORT AND POSTAL SERVICES
 
657
Accountancy
 
659
Publicity. Advertising. Public relations
 
66
CHEMICAL TECHNOLOGY
 
669
 Metallurgy
 
67/68
 INDUSTRIES, CRAFTS AND TRADES
 
69
BUILDING

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7
THE ARTS
 
71
REGIONAL PLANNING
 
72
ARCHITECTURE
 
73
PLASTIC ARTS
 
74
 DRAWING
 
745/749
 APPLIED ARTS
 
75
 PAINTING
 
76
 GRAPHIC ARTS
 

77

PHOTOGRAPHY
 
78
 MUSIC
 
79
 RECREATION. ENTERTAINMENT. GAMES. SPORT
 
791
CINEMA. FILMS (MOTION PICTURES)
 
792
 THEATRE
 
793
 Dance
 
794
Board and table games
 
796/799
 SPORT

8
LANGUAGE. LINGUISTICS. LITERATURE
 
80
PHILOLOGY
 
81
LINGUISTICS
 
811
Individual languages
 
82
LITERATURE
 
821
Literature of individual languages

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9
GEOGRAPHY. BIOGRAPHY. HISTORY
 
902
ARCHAEOLOGY
 
903
 Prehistory
 
904
Cultural remains of historical times
 
908
 AREA STUDIES
 
91
 GEOGRAPHY
 
929
 BIOGRAPHY
 
929.5
 Genealogy
 
929.6
Heraldry
 
93/99
HISTORY
 
930
Science of history. Ancillary historical sciences
 
930.1
 History as a science. Theory and philosophy of history
 
930.25
 Archivistics. Archives. Public records
 
930.27
Epigraphy. Palaeography
 
94
 GENERAL HISTORY (Subdivision by auxiliaries of place - Table 1e, time - Table 1g and ethnic grouping - Table 1f))
 
94(100)
History of the world
 
94(3)
History of the ancient world
 
94(4)
 History of Europe
 
94(5)
 History of Asia
 
94(6)
 History of Africa
 
94(7/8)
 History of the Americas
 
94(9)
History of Oceania, the Polar regions, Australasia, etc.
 

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