was a after Shōka and before Kōchō. This period spanned the years from April 1260 to February 1261.Nussbaum, Louis-Frédéric. (2005). "Bun'ō" in ; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see . The reigning emperor was .Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 255-261; Varley, H. Paul. (1980). Jinnō Shōtōki. p. 232-233.
Change of era 1260 : The new era name was created to mark an event or a number of events. The years of the Shōgen era were part of a period marked by famine and epidemics; and the era name was changed in quick succession in the hope that this might bring them to a close. The previous era ended and a new one commenced in Shōka 3.
Events of the Bun'ō era 1260 (Bun'ō 1): Crop failures brought widespread starvation.Totman, Conrad D. (2000). 1260 (Bun'ō 1): Nichiren preached in the streets of Kamakura.Lloyd, Arthur. (1912). July 16, 1260 (Bun'ō 1, 7th day of the 6th month): Nichiren submitted a formal remonstrance to Hojo Tokiyori; this was the "Treatise on Securing Peace in the Land through the Establishment of True Buddhism" (Rissho Ankoku Ron)The Life of Nichiren, Part 8, "The Matsubagayatsu Persecution" 1260 (Bun'ō 1): Buddhism was introduced from Japan to the Ryūkyū Kingdom.Schwarz, Henry B. (1908). 1260 (Bun'ō 1): The rise of pirates and increased raids from safe havens in Tsushima began to develop into a major problem.
Notes
References Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ; 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 Totman, Conrad D. (1999). A History of Japan. Boston: Blackwell. ; ; OCLC 59570371 Varley, H. Paul. (1980). A Chronicle of Gods and Sovereigns: Jinnō Shōtōki of Kitabatake Chikafusa. New York: Columbia University Press. ; OCLC 6042764
External links National Diet Library, "The Japanese Calendar" -- historical overview plus illustrative images from library's collection