was a after Katei and before ''En'ō.'' This period spanned the years from November 1238 to April 1239. The reigning emperor was .
was a after Katei and before ''En'ō. This period spanned the years from November 1238 to April 1239. The reigning emperor was .
==Change of era== 1238 : The era name was changed to mark an event or a number of events. The previous era ended and a new one commenced in Katei 4.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).