(linguistics) "role language": unique language usage serving as a marker of social identity in fictional speech

importance

(chiefly in the negative) so much; so often; so long; particularly; especially

Used when something comes to mind: to recall / Used to express agreement: yeah, of course

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

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