importance

Kamakura Kaidō (roadways built during the Kamakura period converged on the military capital of Kamakura)

a hairstyle popular among samurais and their wives in Kamakura

Courtesy name of 源実朝 (Minamoto no Sanetomo), Kamakura-period shogun and poet

stairs used in emergencies

state of emergency (unusually difficult or dangerous situation)

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

historicism