Title: Muromachi, Sengokuki girei chitsujo no kenkyū
Subjects: Samurai, Social life and customs, Correspondence, History, Nihon-Rekishi-Muromachi jidai, Nihon-Rekishi-Azuchi momoyama jidai, Shokanbun, Kōbunsho
Places: Japan
Time periods: Muromachi period, 1336-1573