Ōhō

 ( Japanese Eras ) 

応保 was a lit. "year name" after Eiryaku and before Chōkan. This period spanned the years from September 1161 through March 1163.Nussbaum, Louis-Frédéric. (2005). " Ōhō" in ; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File. The reigning emperor was 二条天皇.Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp.191-194; Brown, Delmer et al. (1979). Gukanshō, pp.327-329; Varley, H. Paul. (1980). Jinnō Shōtōki. pp. 208-212.

• January 28, 1161 長寛元年: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Eiryaku 2, on the 4th day of the 9th month of 1161.Brown, p. 328.

• 1161 ( Ōhō 1, 2nd month): The emperor visited Kasuga Shrine and other shrines which were situated just outside the boundaries of the capital city.Titsingh, p. 191.
• July 31, 1162 ( Ōhō 2, 18th day of the 6th month): Fujiwara no Tadazane died.

• Brown, Delmer M. and Ichirō Ishida, eds. (1979). Gukanshō: The Future and the Past. Berkeley: University of California Press. ; OCLC 251325323
• Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ; OCLC 58053128
• Isaac Titsingh (1834). Nihon Odai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691
• Varley, H. Paul. (1980). A Chronicle of Gods and Sovereigns: Jinnō Shōtōki of Kitabatake Chikafusa. New York: Columbia University Press. ; OCLC 6042764

• National Diet Library, "The Japanese Calendar" -- historical overview plus illustrative images from library's collection