everyone, one and all

oral history

historicism

historian

(Internet slang, especially anime and manga fandom) events or things from the past which one wants to whitewash/erase from history (due to it being embarrassing, poorly received, etc.); dark past

study of history

historic, historical / already-happened, past / former, old, traditional

cultural festival (a regularly-held Japanese school event meant to display the activities of the students)

(rare) Synonym of サブカルチャー (sabukaruchā, “subculture”)

cultural sphere