Emperor Seiwa
Following the earlier national history "Shoku Nihon Kōki" (869), in 871 Emperor Seiwa ordered the compilation of the years since then. It was primarily edited by Fujiwara no Mototsune with assistance from Minabuchi no Toshina, Ōe Otondo, Shimada no Tadaomi, Sugawara no Koreyoshi, Yoshibuchi no Yoshinari, and significant contributions by Miyako no Yoshika. The text was completed in 879.