Jisho

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Noun
1. Kōgen era (1256.10.5-1257.3.14)
Wikipedia definition
2. KōgenKōgen was a Japanese era name after Kenchō and before Shōka. This period spanned the years from October 1256 to March 1257. The reigning emperor was Go-Fukakusa-tennō .
Read “Kōgen” on English Wikipedia
Read “康元” on Japanese Wikipedia
Read “Kōgen” on DBpedia

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