Chōgen

Chōgen (Japanese: 長元) was a Japanese era name (年号, nengō, lit. year name) after Manju] and before Chōryaku. This period spanned the years from 1028 through 1037. The reigning emperors were Go-Ichijō-tennō (後一条天皇) and Go-Suzaku-Tennō (後朱雀天皇).^[1]

Change of Era

Chōgen gannen (長元元年) or Chōgen 1 (1028): The new era name Chōgen (meaning "________") was created because ________. The previous era ended and the new one commenced in Manju 4.

Chōgen gannen or Chōgen 1 (1028):
Chōgen 9, on the 17th day of the 4th month (1036): In the 9th year of Emperor Go-Ichijō's reign (後一条天皇9年), he died; and the succession (‘‘senso’’) was received by a his son.^[2]
Chōgen 9, in the 7th month (1036): Emperor Go-Suzaku is said to have acceded to the throne (‘‘sokui’’).^[3]

^ Titsingh, Isaac. (1834). Annales des emepeurs du japon, pp. 158-160; Brown, Delmer et al. (1979). Gukanshō, pp. 31-311.
^ Brown, p. 310; 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.]
^ Titsingh, p. 160; Varley, p. 44.

Brown, Delmer M. and Ichirō Ishida, eds. (1979). [ Jien, 1221], Gukanshō (The Future and the Past, a translation and study of the Gukanshō, an interpretative history of Japan written in 1219). Berkeley: University of California Press. ISBN 0-520-03460-0
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.--Two copies of this rare book have now been made available online: (1) from the library of the University of Michigan, digitized January 30, 2007; and (2) from the library of Stanford University, digitized June 23, 2006. Click here to read the original text 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 0-231-04940-4

Chōgen	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
Gregorian	1028	1029	1030	1031	1032	1033	1034	1035	1036	1037

Preceded by:
Manju

Era or nengō:
Chōgen

Succeeded by:
Chōryaku

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