e/Tensho (Heian period)

Information
has gloss	eng: Change of Era * January 31, 1131 : The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Daiji 6, on the 29th day of the 1st month of 1131. .
lexicalization	eng: Tensho
lexicalization	eng: Tenshō
instance of	e/Japanese era name