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

CAuxiliary Sciences of History (General)
CBHistory of Civilization
CCArchaeology
CDDiplomatics; Archives; Seals
  1-511Diplomatics
921-4280Archives
5001-6471Seals
CETechnical Chronology; Calendar
CJNumismatics
  1-4625Coins
4801-5450Tokens
5501-6661Medals and Medallions
CNInscriptions; Epigraphy
CRHeraldry
CSGenealogy
CTBiography