Jin dynasty (1115–1234)

one of the five classical elements in traditional Chinese philosophy and medicine: see the "Wu Xing" entry on Wikipedia

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

Chinese (any language spoken in China) / Chinese (class of languages) / Chinese (Mandarin)

the Chūgoku region (western part of Honshu comprising the prefectures of Okayama, Hiroshima, Yamaguchi, Tottori, and Shimane)