Kōgen
Sign in to savewas a after Kenchō and before Shōka. This period spanned the years from October 1256 to March 1257. The reigning emperor was .
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- start time
- 1256-10-00
- end time
- 1257-03-00
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5 sectionsContents
- Change of era
- Events of the ''Kōgen'' era
- Notes
- References
- External links
was a after Kenchō and before Shōka. This period spanned the years from October 1256 to March 1257. The reigning emperor was .
==Change of era== 1256 : The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Kenchō 8.
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