was a after Manju and before Chōryaku. This period spanned the years from July 1028 through April 1037. The reigning emperors were and .
was a after Manju and before Chōryaku. This period spanned the years from July 1028 through April 1037. The reigning emperors were and .
==Change of era== 1028 : The new era name Chōgen was created to mark and event or series of events. The previous era ended and the new one commenced in Manju 5, on the 25th day of the 7th month.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).