Dewey Decimal Classification

DDC (also called the Dewey Decimal System) was originally developed by Melvil Dewey in 1876. The classification's notation makes use of three-digit numbers organized into ten classes, each with ten divisions, further divided into ten sections. This quiz covers the ten main classes and their divisions (e.g. 100, 150, 270).
Main classes (000, 100, 200...) will populate when at least one answer is given in that category
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EarlGrey
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Last updated: June 13, 2025
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First submittedJune 13, 2025
Times taken46
Average score21.3%
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000 - Generalities
010
Bibliography
020
Library and information sciences
030
General encyclopedic works
040
No longer assigned / Reclassified
050
General serials and their indexes
060
General organization and museology
070
News media, journalism, publishing
080
General collections
090
Manuscripts and rare books
100 - Philosophy and Psychology
110
Metaphysics
120
Epistemology, causation, humankind
130
Paranormal phenomena
140
Specific philosophical schools
150
Psychology
160
Logic
170
Ethics
180
Ancient, medieval, Oriental philosophy
190
Modern Western Philosophy
200 - Religion
210
Natural theology
220
Bible
230
Christian theology
240
Christian moral and devotional theology
250
Christian orders and local church
260
Christian social theology
270
Christian church history
280
Christian denominations and sects
290
Other and comparative religions
300 - Social Sciences
310
General Statistics
320
Political Science
330
Economics
340
Law
350
Public administration
360
General social problems and services
370
Education
380
Commerce, communications, transport
390
Customs, etiquette, folklore
400 - Language
410
Linguistics
420
English and Old English
430
Germanic languages
440
Romance languages: French
450
Italian, Romanian, Rhaeto-Romantic
460
Spanish and Portuguese languages
470
Italic Latin
480
Hellenic languages, Classical Greek
490
Other languages
500 - Natural Sciences & Mathematics
510
Mathematics
520
Astronomy and allied sciences
530
Physics
540
Chemistry and allied sciences
550
Earth sciences
560
Paleontology, paleozoology
570
Life sciences
580
Botanical sciences
590
Zoological sciences
600 - Technology (Applied sciences)
610
Medical sciences
620
Engineering and allied operations
630
Agriculture
640
Home economics and family living
650
Management and auxiliary services
660
Chemical engineering
670
Manufacturing
680
Manufacture for specific uses
690
Buildings
700 - The Arts
710
Civic and landscape art
720
Architecture
730
Plastic arts. Sculpture
740
Drawing and decorative arts
750
Painting and paintings
760
Graphic arts
770
Photography and photographs
780
Music
790
Recreational and performing arts
800 - Literature and Rhetoric
810
American literature in English
820
English and Old English literatures
830
Literatures of Germanic languages
840
Literatures of Romance languages
850
Italian, Romanian, Rhaeto-Romanic literatures
860
Spanish and Portuguese literatures
870
General works on Latin literature
880
Hellenic literatures, Classical Greek
890
Indic Literature
Geography and History
910
Geography and travel
920
Biography, genealogy, insignia
930
History of ancient world
940
General history of Europe
950
General history of Asia
960
General history of Africa
970
General history of North America
980
General history of South America
990
General history of other areas
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