ŌwaŌwa was a Japanese era name after Tentoku and before Kōhō. This period spanned the years from February 961 through July 964. The reigning emperor was Emperor Murakami.Change of eraJanuary 20, 961 Ōwa gannen: The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Tentoku 5, on the 16th day of the 2nd month.Events of the ''Ōwa'' era961 : Emperor Murakami moved into a newly constructed palace. The former palace had to be re-built after the destructive fire of Tentoku 5.962 : The emperor sent deputies to make offerings at number of Shinto shrines—at Ise, at Kamo, at Mizunoo, at Hirano, and at Kasuga.962 : Fujiwara no Saneyori went to offer prayers at the Iwashimizu Shrine; and many from the Fujiwara clan followed his example.