LIBRARY OF CONGRESS CLASSIFICATION OUTLINE 

CLASS C - AUXILIARY SCIENCES OF HISTORY

(Click each subclass for details) 

Subclass C Auxiliary Sciences of History (General)

Subclass CB History of Civilization

Subclass CC Archaeology

Subclass CD Diplomatics. Archives. Seals

Subclass CE Technical Chronology. Calendar

Subclass CJ Numismatics

Subclass CN Inscriptions. Epigraphy

Subclass CR Heraldry

Subclass CS Genealogy

Subclass CT Biography
Subclass C 

C1-51 Auxiliary Sciences of History (General) 
Subclass CB 

CB3-482 History of Civilization

CB156 Terrestrial evidence of interplanetary voyages

CB158-161 Forecasts of future progress

CB195-281 Civilization and race

CB305-430 By period

CB440-482 Relation to special topics

CB450 Geography and civilization

CB478 Technology

CB481 War and civilization

CB482 Water and civilization
Subclass CC 

CC1-960 Archaeology

CC72-81 Philosophy. Theory

CC73-81 Methodology

CC83-97 Study and teaching. Research

CC135-137 Preservation, restoration, and conservation of antiquities.

Antiquities and state 

CC140 Forgeries of antiquities 

CC200-260 Bells. Campanology. Cowbells 

CC300-350 Crosses 

CC600-605 Boundary stones 

CC700-705 Stone heaps, cairns, etc., of unknown purpose 

CC710 Hill figures 

CC960 Lanterns of the dead 
Subclass CD 

CD1-6471 Diplomatics. Archives. Seals

CD1-511 Diplomatics

CD70-79 Practice of special chancelleries

CD80-81 Formularies

CD87 Forgeries of documents

CD91-392 Collection of documents, facsimiles, etc., for study

CD501-511 Study and teaching

CD921-4280 Archives

CD995-4280 History and statistics

CD997 Biography of archivists

CD1000-4280 By region or country

CD5001-6471 Seals

CD5191 Iconography

CD5201-5391 Ancient

CD5501-5557 Medieval

CD5561 Renaissance

CD5575-6471 Modern
Subclass CE 

CE1-97 Technical Chronology. Calendar

CE21-46 Ancient

CE51-85 Medieval and modern

CE91-92 Perpetual calendars. Century calendars, etc.
Subclass CJ 

CJ1-6661 

CJ1-4625 

CJ153 

CJ161 

CJ201-1397 

CJ1509-4625 

CJ4801-5450 

CJ4861-4889 

CJ4901-5336 

CJ5350-5450 

CJ5501-6661 

CJ5581-5690 

CJ5723-5793 

CJ5795-6661 

Numismatics 

Coins 

Finds of coins 

Symbols, devices, etc. 

Ancient 

Medieval and modern 

Tokens 

By period 

By region or country 

Special uses of tokens 

Medals and medallions 

Ancient 

Medieval and modern 

By region or country 
Subclass CN 

CN1-1355 

CN120-740 

CN750-753 

CN755 

CN760 

CN805-865 

CN870-1355 

Inscriptions. Epigraphy 

Ancient inscriptions 

Early Christian inscriptions 

Medieval inscriptions (General) 

Modern inscriptions (General) 

By language 

By region or country 
Subclass CR 

CR1-6305 Heraldry

CR51-79 Crests, monograms, devices, badges, mottoes, etc.

CR91-93 Shields and supporters 

CR101-115 Flags, banners, and standards

CR191-1020 Public and official heraldry

CR1101-1131 Ecclesiastical and sacred heraldry

CR1179-3395 Family heraldry

CR3499-4420 Titles of honor, rank, precedence, etc.

CR4480-4485 Royalty. Insignia. Regalia, crown and coronets, etc.

CR4501-6305 Chivalry and knighthood (Orders, decorations, etc.)

CR4547-4553 Ceremonials, pageants, tournaments, etc.

CR4571-4595 Duels and dueling

CR4651-6305 Orders, etc.
Subclass CS 

CS1-3090 Genealogy

CS23-35 Genealogical lists, etc., covering more than one country or continent

CS38-39 Family history covering more than one country

CS42-2209 By region or country

CS2300-3090 Personal and family names
Subclass CT 

CT21-9999 Biography

CT21-22 Biography as an art or literary form

CT31-83 History of biographical literature. Lives of biographers

CT93-206 General collective biography

CT206 Portraits

CT210-3150 National biography

CT3200-9999 Biography. By subject

CT3200-3830 Biography of women (Collective)

CT3990 Academicians. Scholars. Savants

CT9960-9998 Other miscellaneous groups

Including adventurers, eccentrics, misers, etc. 

CT9999 Blank books for personal records, diaries, etc.