Kōji (Muromachi period)
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Kōji (弘治) was a Japanese era name (年号, nengō,, lit. "year name") after Tenbun and before Eiroku. This period spanned the years from 1555 through 1558. Reigning emperors were Go-Nara-tennō (後奈良天皇) and Ōgimachi-tennō (正親町天皇).[1]
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[edit] Change of era
- 1555 Kōji gannen (弘治元年): The era name was changed to mark an event or a number of events. The old era ended and a new once commenced in Tenbun 24.
The name originates from the following Chinese passage: 「祇承宝命、志弘治体」.
[edit] Events of the Kōji era
- 1555 (Kōji 1, 1st month): A border war began between Mōri Motonari, daimyo of Aki Province, and Sue Harutaka, daimyo of Suō Province.[2]
- 1555 (Kōji 1, 11th month): The Mōri forces surrounded the Sue defenders in the Battle of Itsukushima. When the outcome of the battle became clear, Sue Harutaka committed suicide; and others, including Odomo-no Yoshinaga, followed Harutaka in suicide. This victory, and the subsequent consolidation of the Mōri holdings were owing to Motonari's four sons: Mōri Takamoto, Kikkawa Motoharu, Hoda Motokiyo, and Kobayakawa Takakage.[2]
- 1555 (Kōji 1): The forces of Takeda Shingen and Uesugi Kenshin met at the confluence of the Saigawa and te Chikumagawa in Shinano province; and the fighting was known as the Battle of Kawanakajima.[3]
- 1556 (Kōji 2): The Ōmori silver mine fell into the control of the Mori clan during a campaign in Iwami province.[4]
- September 27, 1557 (Kōji 3, 5th day of the 9th month): Emperor Go-Nara died at age 62.[2]
[edit] Notes
[edit] References
- Sansom, George Bailey. (1961). A History of Japan, 1334-1615. Stanford: Stanford University Press. ISBN 0-8047-0524-0 (cloth); ISBN 0-8047-0525-9 (paper)
- Titsingh, Isaac, ed. (1834). [Siyun-sai Rin-siyo/Hayashi Gahō, 1652], Nipon o daï itsi ran; ou, Annales des empereurs du Japon. Paris: Oriental Translation Fund of Great Britain and Ireland.
[edit] External links
- National Diet Library, "The Japanese Calendar" -- historical overview plus illustrative images from library's collection
| Kōji | 1st | 2nd | 3rd | 4th |
| Gregorian | 1555 | 1556 | 1557 | 1558 |
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Era or nengō: |
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