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

(history) the Nara period (710 - 794 CE)

an ice age (period of glaciation at the poles)

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

zeitgeist (the spirit of the age)

Age of Enlightenment (period of history)