Change of era

• 1457 : The era name was changed to mark an event or a number of events. The old era ended and a new one commenced in Kōshō 3.

Events of the Chōroku era

• 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 in Yoshino
  Yoshino
  Yoshino may refer to:* Somei Yoshino, a flowering cherry tree Prunus × yedoensis* Japanese cruiser Yoshino- Places :* Yoshino, Nara, a town located in Yoshino District, Nara Prefecture, Japan...
  
  . In 1443 (Kakitsu
  Kakitsu
  was a after Eikyō and before Bun'an. This period spanned the years from February 1441 through February 1444. The reigning emperor was .-Change of era:* 1451 : The era name was changed to mark an event or a number of events...
  
   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 the Sacred Treasures – the mirror, the sword and the jewel. Later, a guard found the mirror and a priest found the sword, but the location of jewel was not known until the 8th month of Bunnan
  Bunnan
  was a after Kakitsu and before Hotoku. This period spanned the years from February 1444 through July 1449. The reigning emperor was .-Change of era:* 1444 : The era name was changed to mark an event or a number of events...
  
   gannen.
• 1458 (Chōroku 2, 8th month): The Sacred Jewel is retrieved from the former Southern Court. It is returned to Kyoto
  Kyoto
  is a city in the central part of the island of Honshū, Japan. It has a population close to 1.5 million. Formerly the imperial capital of Japan, it is now the capital of Kyoto Prefecture, as well as a major part of the Osaka-Kobe-Kyoto metropolitan area.-History:...
  
   to join the other Sacred Treasures which comprise the Imperial Regalia of Japan
  Imperial Regalia of Japan
  The , also known as the Three Sacred Treasures of Japan, consist of the sword Kusanagi , the mirror Yata no Kagami , and the jewel Yasakani no Magatama...
  
  .
• 1459 (Chōroku 3): Shogun Ashikaga Yoshimasa
  Ashikaga Yoshimasa
  was the 8th shogun of the Ashikaga shogunate who reigned from 1449 to 1473 during the Muromachi period of Japan. Yoshimasa was the son of the sixth shogun Ashikaga Yoshinori....
  
   provided a new mikoshi and a complete set of robes and other accouterments for this festival on the occasion of repairs to the Atsuta Shrine
  Atsuta Shrine
  is a Shinto shrine traditionally believed to have been established during the reign of Emperor Keikō located in Atsuta-ku, Nagoya, Aichi Prefecture in Japan. The shrine is familiarly known as Atsuta-Sama or simply as Miya...
  
   in the 1457-1459 (Chōroku 1-3).

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