Library of Congress Classification System
C - Auxiliary Sciences of History
| C | 1-51 | Auxillary Sciences of History (General). |
| CB | 3-481 | History of Civilization. |
| 156 | Terrestrial Evidence of Interplanetary Voyages | |
| 158-161 | Forecasts of Future Progress | |
| 195-281 | Civilization and Race | |
| 305-430 | By Period | |
| 440-481 | Relation to Special Topics | |
| 478 | Technology | |
| CC | 1-960 | Archaeology. |
| 72-72.7 | Philosophy, Theory | |
| 73-81 | Methodology | |
| 135-137 | Preservation, Restoration, and Conservation of Antiquities, Antiquities and State | |
| 140 | Forgeries of Antiquities | |
| 200-255 | Bells, Campanology | |
| 300-350 | Crosses | |
| 600-605 | Boundry Stones | |
| 700-705 | Stone Heaps, Cairns, etc. of Unknown Purpose | |
| 710 | Hill Figures | |
| 960 | Lanterns of the Dead | |
| CD | 1-6471 | Diplomatics, Archives, Seals. |
| 1-511 | Diplomatics | |
| 70-79 | Practice of Special Chancelleries | |
| 80-81 | Formularies | |
| 87 | Forgeries of Documents | |
| 91-392 | Collection of Documents, Facimilies, etc. for Study | |
| 921-4280 | Archives (Science of, Guides To, Inventories) | |
| 995-996.4 | History and Statistics | |
| 997 | Biographies of Archivists | |
| 1000-4280 | By Region or Country | |
| 5001-6471 | Seals | |
| 5201-5391 | Ancient | |
| 5501-5557 | Medieval | |
| 5561 | Renaissance | |
| 5575-6471 | Modern | |
| CE | 1-97 | Calendar, Technical Chronology. |
| 21-46 | Ancient | |
| 51-85 | Medieval and Modern | |
| 91-92 | Perpetual Calendars, Century Calendars, etc. | |
| CJ | 1-6661 | Numismatics, Coins, Medals. |
| 1-4625 | Coins | |
| 153-161 | Finds of Coins | |
| 205-1397 | 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 | 1-1355 | Inscriptions, Epigraphy. |
| 120-745 | Ancient Inscriptions | |
| 350-455 | Greek | |
| 510-740 | Latin | |
| 750-753 | Early Inscriptions | |
| 755 | Medieval Inscriptions (General) | |
| 760 | Modern Inscriptions | |
| 805-865 | By Language | |
| 870-1355 | By Region or Country | |
| CR | 1-6305 | 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 | |
| 4547-4553 | Ceremonials, Pageants, Tournaments, etc. | |
| 4571-4595 | Duels and Dueling | |
| 4651-6305 | Orders | |
| CS | 1-3090 | Genealogy. |
| 25-35 | Genealogical Lists, etd., 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 | 21-9999 | General Biography. |
| (for biography associated with a particular subject, see the subject.) | ||
| 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 | Academicicans, Scholars, Savants | |
| 4150-9950 | Special Subjects | |
| 9960-9998 | Other Miscellaneous Groups | |
| 9999 | Blank Books for Personal Records, Diaries, etc. |
To the Library of Congress Classification index
