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Chōroku (長禄) was aJapanese era name (年号,nengō; lit. "year name") afterKōshō and beforeKanshō. This period spanned the years from September 1457 through December 1460.^[1] The reigning emperor wasGo-Hanazono-tennō (後花園天皇).^[2]

• 1457Chōroku gannen (長禄元年): The era name was changed to mark an event or a number of events. The old era ended and a new one commenced inKōshō 3.

• 1457 (Chōroku 1'): Tarō Sayemon attempted to retrieve the Sacred Jewel for Emperor Go-Hanazono; and he actually did manage to gain possession of it for a brief time. A counterattack prevented the success of this dangerous mission inYoshino.^[3] In 1443 (Kakitsu 3, 23rd day of the 9th month), an armed group of rebels penetrated the palace defenses. A fire was started and one of the men sought to kill Emperor Go-Hanazono, but the emperor escaped. However, the intruders managed to steal theSacred Treasures – the mirror, the sword and the jewel. Later, a guard found the mirror and a priest found the sword, but the location of the jewel was not known until the 8th month ofBunnan gannen.^[4]
• 1458 (Chōroku 2, 8th month): The Sacred Jewel is retrieved from the former Southern Court. It is returned toKyoto to join the other Sacred Treasures which comprise theImperial Regalia of Japan.^[5]
• 1459 (Chōroku 3): ShōgunAshikaga Yoshimasa provided a newmikoshi and a complete set of robes and other accouterments for this festival on the occasion of repairs to theAtsuta Shrine in the 1457-1459 (Chōroku 1-3).^[6]

• Nussbaum, Louis Frédéric and Käthe Roth. (2005).Japan Encyclopedia. Cambridge:Harvard University Press.ISBN 978-0-674-01753-5;OCLC 48943301
• Ponsonby-Fane, Richard Arthur Brabazon. (1959).The Imperial House of Japan. Kyoto: Ponsonby Memorial Society.OCLC 194887
• ____________. (1962).Studies in Shinto and Shrines. Kyoto: Ponsonby Memorial Society.OCLC 3994492
• 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.

• National Diet Library, "The Japanese Calendar"-- historical overview plus illustrative images from library's collection

• Japanese eras
• 1450s in Japan
• 1460s in Japan
• 15th-century neologisms

• Articles with short description
• Short description is different from Wikidata
• Articles containing Japanese-language text