Kōan (Kamakura period)

period of Japanese history (1278–1288 CE)

Kōan (弘安) was a Japanese era (年号,, nengō,, lit. "year name") after Kenji and before Shōō. This period started in February 1278 and ended in April 1288.[1] During this time, the emperor|emperors were Go-Uda-tennō (後宇多天皇) and Fushimi-tennō (伏見天皇).[2]

Events of the Kōan era

  • 1281 (Kōan 4): Second invasion attempt by Mongol forces. This is called the Kōan War (Kōan no Eki).[3]
  • 1297 (Kōan 10, 10th month): In the 14th year of Go-Uda's reign, the emperor abdicated; and his cousin became the new emperor.[4]


  1. Nussbaum, Louis-Frédéric. (2005). "Kōan" in Japan Encyclopedia, p. 535.
  2. Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 262-268; Varley, H. Paul. (1980). Jinnō Shōtōki. pp. 233-237.
  3. Nussbaum, "Kōan no Eki" in Japan Encyclopedia, p. 535.
  4. Titsingh, p. 269; Varley, p. 44; a distinct act of senso is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have senso and sokui in the same year until the reign of Emperor Go-Murakami. Compare Kunaichō, Ceremony of Accession (Sokui-no-Rei); retrieved 2012-6-29.

Other websites


Kōan 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th
1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
Preceded by:
Era or nengō:
Succeeded by: