(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

(historiography) Chinese local chronicle

oral history

Setouchi Region: Region of Japan's inland sea (the body of water separating Honshū, Shikoku, and Kyūshū, three of the four main islands of Japan) and coastal areas roundabout

local newspaper

(slang) person who lives outside of the major Japanese metropolitan areas (often in reference to hindered access to physical forms of cultural phenomena such as promotional events)

historicism

local self-government, autonomy

stem cell

Kyūjitai form of 脳幹: brain stem