Checking A Historical Claim Against Archives
Launch library · evergreen read

Claims about past events can drift considerably over time through repeated retelling, gradually acquiring details that feel plausible enough but were never actually part of the original recorded event. Checking against archival material, contemporary reporting from the time, official records, primary documents, catches this gradual drift before it fully hardens into accepted, unquestioned fact.
Archives themselves are not entirely infallible either, since records can be genuinely incomplete, biased in their own particular way, or simply lost over time, but they generally sit considerably closer to the original event than a modern retelling several steps removed from the actual source material.
When archival material is genuinely unavailable after a reasonable search, it is worth stating that remaining uncertainty plainly and honestly rather than filling the gap with an assumption that merely sounds historically plausible without any actual supporting record standing behind it at all, however confident the retelling itself might sound to a listener.