was a after Kenchō and before Shōka. This period spanned the years from October 1256 to March 1257. The reigning emperor was .
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.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).