title: Library of Congress Classification:Class C -- Auxiliary Sciences of History
text: # Library of Congress Classification:Class C -- Auxiliary Sciences of History
  
  Class C: Auxiliary Sciences of History is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class C.
  
  ## C - Auxiliary Sciences of History
  
      1-51.......Auxiliary Sciences of History (General)
  
  ## CB - History of Civilization
  
      156...........Terrestrial evidence of interplanetary voyages
      158-161.......Forecasts of future progress
      195-281.......Civilization and race
      305-430.......By period
      440-482.......Relation to special topics
         450.......Geography and civilization
         478.......Technology
         481.......War and civilization
         482.......Water and civilization
  
  ## CC - Archaeology
  
      72-81.......Philosophy. Theory
         73-81.......Methodology
      83-97........Study and teaching. Research
      135-137....Preservation, restoration, and conservation of antiquities. Antiquities and state
      140............Forgeries of antiquities
      200-260.....Bells. Campanology. Cowbells
      300-350.....Crosses
      600-605.....Boundary stones
      700-705.....Stone heaps, cairns, etc., of unknown purpose
      710............Hill figures
      960............Lanterns of the dead
  
  ## CD - Diplomatics; Archives; Seals
  
      1-511.......Diplomatics
         70-79.........Practice of special chancelleries
         80-81.........Formularies
         87...............Forgeries of documents
         91-392........Collection of documents, facsimiles, etc., for study
         501-511.....Study and teaching
      921-4280....Archives
         995-4280....History and statistics
            997................Biography of archivists
            1000-4280.....By region or country
      5001-6471...Seals
         5191..............Iconography
         5201-5391...Ancient
         5501-5557...Medieval
         5561.............Renaissance
         5575-6471...Modern
  
  ## CE - Technical Chronology; Calendar
  
      21-46.......Ancient
      51-85.......Medieval and modern
      91-92.......Perpetual calendars. Century calendars, etc.
  
  ## CJ - Numismatics
  
      1-4625.......Coins
         153..........Finds of coins
         161..........Symbols, devices, etc.
         201-1397.....Ancient
         1509-4625....Medieval and modern
      4801-5450....Tokens
         4861-4889....By period
         4901-5336....By region or country
         5350-5450....Special uses of tokens
      5501-6661....Medals and medallions
         5581-5690....Ancient
         5723-5793....Medieval and modern
         5795-6661....By region or country
  
  ## CN - Inscriptions; Epigraphy
  
      120-740.......Ancient inscriptions
      750-753.......Early Christian inscriptions
      755..............Medieval inscriptions (General)
      760..............Modern inscriptions (General)
      805-865.......By language
      870-1355......By region or country
  
  ## CR - Heraldry
  
      51-79.......Crests, monograms, devices, badges, mottoes, etc.
      91-93.......Shields and supporters
      101-115.....Flags, banners, and standards
      191-1020....Public and official heraldry
      1101-1131...Ecclesiastical and sacred heraldry
      1179-3395...Family heraldry
      3499-4420...Titles of honor, rank, precedence, etc.
      4480-4485...Royalty. Insignia. Regalia, crown and coronets, etc.
      4501-6305...Chivalry and knighthood (Orders, decorations, etc.)
         4547-4553.......Ceremonials, pageants, tournaments, etc.
         4571-4595.......Duels and dueling
         4651-6305.......Orders, etc.
  
  ## CS - Genealogy
  
      23-35...........Genealogical lists, etc., covering more than one country or continent
      38-39...........Family history covering more than one country
      42-2209.......By region or country
      2300-3090...Personal and family names
  
  ## CT - Biography
  
      21-22.......Biography as an art or literary form
      31-83.......History of biographical literature. Lives of biographers
      93-206......General collective biography
         206........Portraits
      210-3150....National biography
      3200-9999...Biography. By subject
         3200-3830.......Biography of women (Collective)
         3990.................Academicians. Scholars. Savants
         9960-9998.......Other miscellaneous groups (Including adventurers, eccentrics, misers, etc.)
         9999.................Blank books for personal records, diaries, etc.
  