Keio

Zaman Keiō (慶 応, secara historis 慶 應) adalah nama era Jepang (年号, nengō, secara harfiah "nama tahun") setelah Genji dan sebelum Meiji. Periode ini mencakup tahun-tahun dari Mei 1865 hingga Oktober 1868.Nussbaum, Louis-Frédéric. (2005). "Keiō" ; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File . Kaisar yang memerintah adalah Kōmei-tennō (孝明 天皇) dan Meiji-tennō (明治天皇).

 Catatan 

 Referensi 
 Ozaki, Yukio. (2001). The Autobiography of Ozaki Yukio: The Struggle for Constitutional Government in Japan. [Translated by Fujiko Hara]. Princeton: Princeton University Press. ; OCLC 45363447
 Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ; OCLC 48943301
 Ponsonby-Fane, Richard A. B. (1956). Kyoto: The Old Capital of Japan, 794-1869. Kyoto: The Ponsonby Memorial Society. OCLC 559477127

 Pranala luar 
 National Diet Library, "The Japanese Calendar" ...historical overview plus illustrative images from library's collection
 National Archives of Japan ...Scroll image showing precise reproduction of Imperial standard and colors, Boshin War (1868) 
 Toyohara Chikanobu, Mirror of the Ages (Jidai Kagami): Keiō no koro.