Eiroku

964–968	Kōhō
968–970	Anna
970–973	Tenroku
973–976	Ten'en
976–978	Jōgen
978–983	Tengen
983–985	Eikan
985–987	Kanna
987–988	Eien
988–990	Eiso
990–995	Shōryaku
995–999	Chōtoku
999–1004	Chōhō
1004–1012	Kankō
1012–1017	Chōwa
1017–1021	Kannin
1021–1024	Jian
1024–1028	Manju
1028–1037	Chōgen
1037–1040	Chōryaku

806–810	Daidō
810–824	Kōnin
824–834	Tenchō
834–848	Jōwa
848–851	Kashō
851–854	Ninju
854–857	Saikō
857–859	Ten'an
859–877	Jōgan
877–885	Gangyō
885–889	Ninna
889–898	Kanpyō
898–901	Shōtai
901–923	Engi
923–931	Enchō
931–938	Jōhei
938–947	Tengyō
947–957	Tenryaku
957–961	Tentoku
961–964	Ōwa

645–650	Taika
650–654	Hakuchi
686–686	Shuchō
701–704	Taihō
704–708	Keiun
708–715	Wadō
Nara
715–717	Reiki
717–724	Yōrō
724–729	Jinki
729–749	Tenpyō
749	Tenpyō-kanpō
749–757	Tenpyō-shōhō
757–765	Tenpyō-hōji
765–767	Tenpyō-jingo
767–770	Jingo-keiun
770–781	Hōki
781–782	Ten'ō
782–806	Enryaku

Eiroku (永禄) was a Japanese era name (年号, nengō, "year name") after Kōji and before Genki. This period spanned the years from February 1558 through April 1570.^[1] The reigning emperor was Ōgimachi-tennō (正親町天皇).^[2]

Change of era

1558 Eiroku gannen (永禄元年): The era name was changed to mark the enthronement of Emperor Ōgimachi. The previous era ended and a new one commenced in Kōji 4, on the 28th day of the 2nd month.

Events of the Eiroku era

1560 (Eiroku 3, 1st month): Ōgimachi was proclaimed emperor. The ceremonies of coronation were made possible because they were paid for by Mōri Motonari and others.^[3]
June 12, 1560 (Eiroku 3, 19th day of the 5th month): Imagawa Yoshimoto led the armies of the province of Suruga against the Owari; at the Battle of Okehazama (桶狭間の戦い,, Okehazama-no-tatakai), his forces fought against Oda Nobunaga, but Imagawa's army was vanquished and he did not survive. Nobunaga subsequently took over the province of Owari, while Tokugawa Ieyasu claimed the province of Mikawa and made himself master of Okazaki Castle (岡崎城,, Okazaki-jō).^[3]
1564 (Eiroku 7): Nobunaga attacked Inabayama Castle in an effort to take Mino Province from the Saitō clan, but was defeated and driven out of Mino.^[4]
1567 (Eiroku 10, 8th month): Nobunaga defeated the Saito clan, completed the conquest of Mino; and established Gifu Castle as his primary residence and headquarters.^[4]^[5]
1568 (Eiroku 11, 2nd month): Ashikaga Yoshihide became shōgun.^[6]
1568 (Eiroku 11, 9th month): Shōgun Yoshihide died from a contagious disease.^[6]

Notes

^ Nussbaum, Louis-Frédéric. (2005). "Eiroku" in Japan encyclopedia, p. 172; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File.
^ Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 382–388.
^ ^a ^b Titsingh, p. 383.
^ ^a ^b Gifu, pp.182–185.
^ Ohta 2003: 54–55.
^ ^a ^b Titsingh, p. 386.

References

Gifu Prefecture Department of Education (1969). History of Gifu Prefecture: The Complete Overview of History [岐阜県史通史編中世]. Vol. Middle Ages. Gifu Prefecture Press.
Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 48943301
Ohta, Gyuichi 太田牛一 (2003). "Beginning Chapter" (PDF). Shincho Kouki 信長公記 [The Nobunaga Chronicles] (in Japanese). Archived from the original (PDF) on 24 September 2015. Retrieved 7 September 2015.
Titsingh, Isaac. (1834). Nihon Ōdai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691.