Auxiliary sciences of history
Auxiliary (or ancillary) sciences of history are scholarly disciplines which help evaluate and use historical sources and are seen as auxiliary for historical research. Many of these areas of study, classification and analysis were originally developed between the 16th and 19th centuries by antiquaries, and would then have been regarded as falling under the broad heading of antiquarianism.
Source: Wikipedia — Auxiliary sciences of history (CC BY-SA 4.0)