Joan of Arc has one of the densest records of any medieval life, and her prosecutors produced it. Four properties get collapsed into the phrase well documented, and they trade off against each other rather than moving together.
A well-sourced chain can establish that a record was made without establishing the underlying biological or economic relationship. Genealogy's source hierarchy is a discipline for naming that gap.
A claim may be widely repeated before its first recoverable source, and a source may be old without supporting the modern version. Pseudohistory and folklore supply separate tests for the story, its attestation and its transmission.
Names are evidence of identity, not identity itself. Naming systems preserve crossovers, spelling variation and publication thresholds that make a clean join look more certain than it is.
A category code can identify a recurring pattern while saying almost nothing about the particular observation that received it. Folktale indexing keeps accession and type numbers separate; incident systems should too.
A named era makes a gradual or uneven transformation look like a single dated break. Chronology and periodization provide the apparatus for testing whether the boundary belongs to the evidence or to the analyst.
A phrase can outlive the work, instrument or social arrangement that gave it meaning. Etymology and idiom records turn this into a test for jargon that sounds current while carrying an obsolete model underneath.
The absence of a find can mean nonexistence, nondeposition, nonrecovery, destruction or misclassification. Site records and document history built separate checks because a blank field cannot tell you which one happened.
A lineage diagram can be built to confer standing, not to preserve biological history. Mythological genealogies and deity records show how an accepted relationship can allocate legitimacy despite contradictory source traditions.
The most visible site can carry the best measurements and the worst representativeness. Civilizational collapse studies and site records both require the writer to say what was sampled, what survived and what remains unopened.
A battle total can mix killed, wounded, missing, civilian, later and estimated losses under one number. The record is a category system before it is an estimate.
A practice can continue after its stated mechanism has failed every available check. Folk belief and oral transmission make persistence a measurement in its own right, not a proof of what kept the practice alive.
Two English words, one Latin root, two arrival dates centuries apart. The form of each records which route it took — which makes shape a dating instrument.