historian

study of history

(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

oral history

historicism

comfortable, enjoying / easy, simple / rich, wealthy / uncomplicated

Short for 千秋楽 (senshūraku): the end of a performance; a finale; the last or end of something / Short for 楽焼き (Raku-yaki): rakuware

a male or female given name / a surname

depravity, corruption, degradation

depraved (extremely wrong in a moral sense)