noun
historical document without a specific addressee; old record (e.g. diary)
Refers to historical documents, especially diaries or records, that were not addressed to a particular recipient. Often used in contrast with 古文書 (こもんじょ), which typically implies a document with an addressee.
See also: 古文書
古記録には当時の生活が詳しく書かれている。
The old records describe life at that time in detail.
この古記録は日記形式で書
This historical document is written in diary form.
Compound of 古 (こ, 'old') and 記録 (きろく, 'record'). The term is used in historical studies to classify types of ancient documents.