Hōji (era)
Hōji (宝治) was a Japanese era name (年号,, nengō,, lit. "year name") after Kangen and before Kenchō. This period spanned the years from February 1247 to March 1249. The reigning emperor was Go-Fukakusa-tennō (後深草天皇,).
Hōji (宝治) was a Japanese era name (年号,, nengō,, lit. "year name") after Kangen and before Kenchō.  This period spanned the years from February 1247 to March 1249. The reigning emperor was Go-Fukakusa-tennō (後深草天皇,).

Change of era
1247 Hōji gannen (宝治元年); 1247: 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 Kangen 5.

Events of the Hōji era
1247 (Hōji 1):  The Hōji conflict; Hōjo family destroyed the Miura family; and in so doing, the clan consolidated its authority as regents.

Notes
References
Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 58053128
Titsingh, Isaac. (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. ISBN 978-0-231-04940-5; OCLC 6042764

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