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|History of Japan|
Change of era
- January 18, 877 Gangyō gannen (元慶元年?): The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Jōgan 19, on the 16th day of the 4th month of 877.
Events of the Gangyō era
- January 20, 877 (Gangyō 1, 3rd day of the 1st month): Yōzei was formally enthroned at age 8; and the beginning of a new nengō was proclaimed. However, the new residence being constructed for the emperor had not been completed; and initially, he had to live elsewhere in the palace compound.
- 877 (Gangyō 1, 2nd month): Ambassadors from Korea arrived in Izumo province; but they were turned back.
- 877 (Gangyō 1, 6th month): There was a great drought; and sacrifices were made at the temples of Hachiman, Kamo and other temples in Ise province. Eventually, it rained.
- 878 (Gangyō 2): Seiwa became a Buddhist priest. His new priestly name was Soshin.
- December 31, 878 (Gangyō 2, 4th day of the 12th month): Former-Emperor Seiwa died at age 31.
- 883 (Gangyō 7): In his early teens, Yōzei often spent time alone; and sometimes he would feed live frogs to snakes so that he could watch the reptile swallowing; or sometimes, he would find pleasure in setting dogs and monkeys to fight. In time, these amusements became more dangerous. He himself executed criminals. When he became angry, he sometimes chased after those who dared speak up; and he sometimes tried to use his sword. Fujiwara no Mototsune, the Kanpaku, used every possible opportunity to turn Yōzei towards more seemly conduct, but the emperor ignored him.
- 884 (Gangyō 8): The extravagant and dangerous habits of the emperor continued unabated. At one point, Mototsune came to the court and discovered that Yōzei had arranged a bizarre scenario for his diversion: He ordered some men to climb high into trees, and then he ordered others to use sharp lances to poke at them until they fell to their deaths. This extraordinary event convinced Motosune that the emperor was too "undignified" to reign. Mototsune reluctantly realized that someone needed to devise a strategy for deposing the emperor. Shortly thereafter, Mototsune approached Yōzei and remarked that it must be boring to be so often alone, and then Mototsune suggested that the emperor might be amused by a horse race. Yōzei was attracted to this proposition, and he eagerly encouraged Mototsune to set a time and place for the event. It was decided that this special amusement for the emperor would take place on the 4th day of the 2nd month of Gangyō-8.
- March 4, 884 (Gangyō 8, 4th day of the 2nd month): The pretext of a special horse race enticed the emperor to leave his palace. Yōzei traveled in a carriage which was quickly surrounded by a heavy guard. The carriage was redirected to "Yoseí-in" palace at "Ni zio", a town situated a short distance to the south-west of Miyako. Mototsune confronted the emperor, explaining that his demented behavior made him incapable of reigning, and that he was being dethroned. At this news, Yōzei cried sincerely, which did attract feelings of compassion from those who witnessed his contrition.
- In the 8th year of Emperor Yōzei's reign (陽成天皇8年), the emperor was deposed; and scholars then construed that the succession (senso) was received by the third son of former Emperor Ninmyō, who was then age 55.
- March 23, 884 (Gangyō 8, 23rd day of the 2nd month): Emperor Kōkō is said to have acceded to the throne (sokui).
- 885 (Gangyō 9): The era name was changed accordingly in 885.
- Nussbaum, Louis-Frédéric. (2005). "Gangyō" in Japan Encyclopedia, p. 231, p. 231, at Google Books; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File.
- Titsigh, Isaac. (1834). Annales des empereurs du Japon, pp. 121-124; Brown, Delmer et al. (1979). Gukanshō, pp. 288-289; Varley, H. Paul, ed. (1980). Jinō Shōtōki, pp. 170-171.
- Brown, p. 289.
- Titsingh, p. 122.
- Brown, p. 288.
- Brown, p. 289; Varley, p. 170.
- Titsingh, pp. 123-124.
- Titsingh, p. 124.
- Brown, p. 289; 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 Emperor Go-Murakami.
- Titsingh, p. 124; Varley, p. 44.
- Varley, p. 172.
- Brown, Delmer M. and Ichirō Ishida, eds. (1979). Gukanshō: The Future and the Past. Berkeley: University of California Press. 10-ISBN 0-520-03460-0; 13-ISBN 978-0-520-03460-0; OCLC 251325323
- Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. 10-ISBN 0-674-01753-6; 13-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. 10-ISBN 0231049404/13-ISBN 9780231049405; OCLC 6042764
- National Diet Library, "The Japanese Calendar" -- historical overview plus illustrative images from library's collection
|Era or nengō