Change of era

• January 24, 1156 : The new era name was created to mark an event or series of events. The previous era ended and a new one commenced in Kyūju 3, on the 24th day of the 4th month of 1156.

Events of the Hōgen era

• July 20, 1156 (Hōgen 1, 2nd day of the 7th month): Cloistered Emperor Toba
  Emperor Toba
  was the 74th emperor of Japan, according to the traditional order of succession.Toba's reign spanned the years from 1107 through 1123.- Genealogy :...
  
  -in died at age 54.
• July 28–August 16, 1156 (Hōgen 1, 10th-29th days of the 7th month): The Hōgen Rebellion
  Hogen Rebellion
  The was a short civil war fought in order to resolve a dispute about Japanese Imperial succession. The dispute was also about the degree of control exercised by the Fujiwara clan who had become hereditary Imperial regents during the Heian period....
  
  , also known as the Hōgen Insurrection or the Hōgen War.
• 1156 (Hōgen 1, 9th month): The naidaijin Fujiwara Saneyoshi was named sadaijin
  Sadaijin
  , most commonly translated as "Minister of the Left", was a government position in Japan in the late Nara and Heian periods. The position was consolidated in the Taihō Code of 702. The Asuka Kiyomihara Code of 689 marks the initial appearance of the Sadaijin in the context of a central...
  
  . The dainagon
  Dainagon
  was a counselor of the first rank in the Imperial court of Japan. The role dates from the 7th century.This advisory position remained a part of the Imperial court from the 8th century until the Meiji period in the 19th century....
  
  Fujiwara Koremichi became naidaijin. After the was, tranquility was restored throughout the empire; and the emperor himself was in charge of the government. A special building was constructed in Kyoto, where—as in the days of Emperor Go-Sanjo
  Emperor Go-Sanjo
  was the 71st emperor of Japan, according to the traditional order of succession.Go-Sanjō's reign spanned the years from 1068 through 1073.This 11th century sovereign was named after Emperor Sanjō and go- , translates literally as "later;" and thus, he is sometimes called the "Later Emperor Sanjō"...
  
  , requests and complaints were received and examined.
• 1157 (Hōgen 2, 8th month): Sanjō Saneyuki was dismissed from his position as daijō-daijin; and in the same month, the sadaijin Saneyoshi died. The udaijin
  Udaijin
  Udaijin , most commonly translated as the "Minister of the Right", was a government position in Japan in the late Nara and Heian periods. The position was consolidated in the Taihō Code of 702. The Asuka Kiyomihara Code of 689 marks the initial appearance of the Udaijin in the context of a central...
  
  Fujiwara no Munesuke was made daijō-daijin. The naidaijin Koremichi was made sadaijin. Fujiwara no Moresane, who was the 15-year-old son of son of kampaku Fujiwara no Tadamichi
  Fujiwara no Tadamichi
  was the eldest son of the Japanese regent Fujiwara no Tadazane and a member of the politically powerful Fujiwara clan. He was the father of Fujiwara no Kanefusa and Jien.In the Hōgen Rebellion of 1156, Tadamichi sided with the Emperor Go-Shirakawa....
  
  , became udaijin. The dainagon Sanjō Kinori, who was the son of Saneyuki, obtained the position of naidaijin.
• 1157 (Hōgen 2, 10th month): The foundations are laid for a grand audience hall (dairi) in the palace. Three had not been such a structure within the palace compound since the time of Emperor Shirakawa
  Emperor Shirakawa
  was the 72nd emperor of Japan, according to the traditional order of succession.Shirakawa's reign lasted from 1073 to 1087.-Genealogy:Before his ascension to the Chrysanthemum Throne, his personal name was Sadahito-shinnō ....
  
  .
• August 6, 1158 (Hōgen 3, 11th day of the 8th month): In the 3rd year of Go-Shirakawa's reign (後白河天皇25年), the emperor abdicated; and the succession (senso) was received by his eldest son.
• 1158 (Hōgen 4, 8th month): Emperor Nijō is said to have acceded to the throne (sokui).

External links

• National Diet Library
  National Diet Library
  The is the only national library in Japan. It was established in 1948 for the purpose of assisting members of the in researching matters of public policy. The library is similar in purpose and scope to the U.S...
  
  , "The Japanese Calendar" -- historical overview plus illustrative images from library's collection