Overview

The auxiliary sciences of history are a group of specialized disciplines that supply tools, methods and knowledge for working with historical sources. Rather than forming a single theory of the past, they focus on the material and documentary traces left by people: handwriting, seals, coins, inscriptions, fabrics, maps, registers and other artefacts. Their purpose is practical and analytical—establishing the date, provenance, authenticity and context of sources so that historians can interpret them reliably.

Main fields and what they do

Many auxiliary sciences concentrate on one type of evidence and develop a body of techniques and terminology. Common areas include:

  • Palaeography: study of handwriting and scripts for dating and reading manuscripts.
  • Codicology: study of books as physical objects (materials, binding, layout).
  • Diplomatics: analysis of official documents and charters to evaluate authenticity and formulae.
  • Numismatics: study of coins and currency as sources for chronology, economy and iconography.
  • Epigraphy: examination of inscriptions carved on stone, metal or pottery.
  • Sphragistics (sigillography): study of seals and sealing practices.
  • Heraldry: interpretation of coats of arms and emblems.
  • Chronology and calendar studies: establishing dates and reconciling dating systems.
  • Prosopography: collective study of groups of people through prosopographical lists and networks.

History and development

The disciplines now called auxiliary sciences grew up gradually as scholars began to examine physical remains and documents more systematically. From the 16th to the 19th centuries a variety of collectors and antiquarians refined techniques for reading and classifying objects; early practitioners are sometimes called antiquarians. For much of this period academic history emphasized literary narrative and rhetoric rather than close source criticism—an older view that treated history primarily as a literary skill (see contemporary debates). In the late 18th century a shift toward empirical, source-based scholarship—partly associated with the Göttingen school—encouraged more rigorous methods (methodological reform). By the mid-19th century figures such as Leopold von Ranke helped promote trained, critical historians and institutionalized techniques for working with primary sources (Rankean influence). The result was a professionalization of the auxiliary disciplines and of the historian’s craft (professional training).

Methods, uses and importance

Auxiliary sciences provide techniques that range from microscopic material analysis and ink testing to comparative scribal study and typology of seals. Their findings are essential for dating undated documents, spotting forgeries, reconstructing lost originals, and understanding the administrative or social contexts that produced a source. Museums, archives and legal institutions also rely on these fields for conservation and provenance research. In interdisciplinary projects, they work alongside archaeology, chemistry and digital humanities methods to widen the evidentiary base.

Distinctions and practical notes

Although sometimes treated as a single corpus, the auxiliary sciences are distinct from general historical interpretation: they are tools for source criticism rather than histories themselves. Many of the methods are technical and require specialist training; some overlap with archival science, conservation, and museum studies. Modern practice increasingly combines traditional connoisseurship with scientific techniques (for example, radiocarbon dating or material spectroscopy), but judgement grounded in comparative scholarship remains central. For students of history, familiarity with one or more auxiliary disciplines is often indispensable for working responsibly with primary evidence.