When an article says a thing was “recorded in Kagawa in 1931,” it means a specific document: a few lines printed in a folklore journal, a prefectural history or a dictionary, reporting what someone in a named district said about a named creature, with the year the report was published. The records library gives each of these its own page, with a summary in English, the place, the publication and a link to the catalogue card.

A record is evidence of a telling, not of a creature, and one record says nothing about the next village. That is why the articles describe variation rather than flattening it, and why the map and the prefecture pages count records rather than yokai. The locations on each article page, and the pins behind the map, are records of this kind.

On the timeline