- Kōan (Kamakura period)
nihongo|"Kōan"|弘安 was a nihongo|Japanese era name|年号,|"nengō",|lit. "
year name" after "Kenji" and before "Shōō ." This period spanned the years from1278 through1288 . The reigning emperors were nihongo|Go-Uda"-tennō"|後宇多天皇 and nihongo|Fushimi"-tennō"|伏見天皇. [Titsingh, Isaac. (1834). "Annales des empereurs du Japon," pp. 262-268; Varley, H. Paul. (1980). "Jinnō Shōtōki." pp. 233-237.]Change of era
*;
1278 : 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 "Kenji" 4.Events of the "Kōan" era
* "Kōan 10", in the 10th month (
1287 ): In the 14th year of Go-Uda"-tennō"'s reign (後宇多天皇14年), the emperor abdicated; and the succession (‘‘senso’’) was received by his cousin. Shortly thereafter, Emperor Fushimi is said to have acceded to the throne (‘‘sokui’’). [Titsingh, p. 269; Varley, p. 44. [A distinct act of "senso" is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have "senso" and "sokui" in the same year until the reign of Go-Murakami.] ]References
* Titsingh, Isaac, ed. (1834). [Siyun-sai Rin-siyo/
Hayashi Gahō , 1652] , "Nipon o daï itsi ran ; ou, Annales des empereurs du Japon, tr. par M. Isaac Titsingh avec l'aide de plusieurs interprètes attachés au comptoir hollandais de Nangasaki; ouvrage re., complété et cor. sur l'original japonais-chinois, accompagné de notes et précédé d'un Aperçu d'histoire mythologique du Japon, par M. J. Klaproth." Paris: Oriental Translation Fund of Great Britain and Ireland. [http://books.google.com/books?id=18oNAAAAIAAJ&dq=nipon+o+dai+itsi+ran ...Click link to digital, full-text copy of this book (in French)]
* Varley, H. Paul , ed. (1980). [Kitabatake Chikafusa , 1359] , "Jinnō Shōtōki ("A Chronicle of Gods and Sovereigns: Jinnō Shōtōki of Kitabatake Chikafusa" translated by H. Paul Varley)." New York:Columbia University Press . ISBN 0-231-04940-4External links
* National Diet Library, "The Japanese Calendar" [http://www.ndl.go.jp/koyomi/e/ -- historical overview plus illustrative images from library's collection]
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