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History of Japan



Eishō (永正 ?) was a Japanese era name (年号, nengō, ?, lit. "year name") after Bunki and before Daiei. The period spanned the years from February 1504 through August 1521.[1] The reigning emperor was Go-Kashiwabara-tennō (後柏原天皇 ?).[2]


Change of era

  • 1507 Eishō gannen (永正元年 ?): The era name was changed to mark the beginning of a new cycle of the Chinese zodiac. The previous era ended and a new one commenced in Bunki 4, on the 30th day of the 2nd month.

Events of the Eishō era

  • 1504 (Eishō 1): A great famine.[3]
  • 1505 (Eishō 2): Noda Castle built.
  • 1508 (Eishō 5, 1st month): A new revolt in Miyako and the assassination of Hosokawa Masamoto encouraged former-Shogun Ashikaga Yoshitane in believing that this would be a good opportunity to re-take Heian-kyō. He assembled his troups and marched at their head towards the capital; and by the 6th month of Eishō 5, he was once more in command of the streets of Miyako. Starting in 1508, Yoshitane is known as the Muromachi period's 10th shogun.[4]
  • September 21, 1510 (Eishō 7, 18th day of the 8th month): Earthquake at Seionaikai (Latitude: 34.600/Longitude 135.400), 6.7 magnitude on the Richter Scale.[5]
  • October 10, 1510 (Eishō 7, 8th day of the 9th month): Earthquake in the Enshunada Sea (Latitude: 34.500/Longitude: 137.600), 7.0 on the Richter Scale.[5]
  • September 16, 1511 (Eishō 8, 24th day of the 8th month): Battle of Funaokayama. Former Shōgun Ashikaga Yoshitane returns from Tamba, fearing that Hosokawa Seiken is planning to attack Heian-kyō. Then, with the assistance of Ōuchi Yoshioki, Yoshitane entered the capital.[6]
  • 1512 (Eishō 9): Tamanawa Castle built.
  • 1513 (Eishō 10, 5th month): Shogun Yohsitada changes his name to Yoshitada, by which he is better known to historians.[6]


  1. ^ Nussbaum, Louis-Frédéric. (2005). "Eishō" in Japan encyclopedia, p. 172; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, see Deutsche Nationalbibliothek Authority File.
  2. ^ Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 364-370.
  3. ^ Titsingh, p. 365.
  4. ^ Titsingh, p. 367.
  5. ^ a b National Oceanic and Atmospheric Administration (NOAA), National Geophysical Data Center (NGDC): NOAA/Japan: Significant Earthquake Database
  6. ^ a b Titsingh, p. 368.


External links

Eisho 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th
Gregorian 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521
Preceded by
Era or nengō

Succeeded by


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