Bunryaku
Bunryaku (文暦), also romanized as Bunreki, was a Japanese era name (年号,, nengō,, lit. "year name") after Tenpuku and before Katei. This period spanned the years from November 1234 to September 1235. The reigning emperor was Shijō-tennō (四条天皇).
Bunryaku (文暦), also romanized as Bunreki, was a Japanese era name (年号,, nengō,, lit. "year name") after Tenpuku and before Katei.  This period spanned the years from November 1234 to September 1235. The reigning emperor was Shijō-tennō (四条天皇).

Change of era
1234 Bunryaku gannen (文暦元年):  The era name was changed to mark an event or a number of events. The previous era ended and a new one commenced in Tenpuku 2.

Events of the Bunryaku Era
1234 (Bunryaku 1, 12th month):  Kujō Yoritsune is raised to the first rank of the third class in the court hierarchy (the dōjō kuge).

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