日本紀
Meanings
1
Rikkokushi; six national histories
Refers collectively to the six official national histories compiled in the Nara and Heian periods. Often used in historical contexts.
See also: 六国史
Nihongi is a general term for the six national histories compiled from the Nara to Heian periods.
2
Nihon Shoki; Chronicles of Japan
Specifically the second oldest work of Japanese history, completed in 720 CE. Also known as Nihongi.
See also: 日本書紀
The Nihon Shoki is the second oldest history book in Japan, completed in 720.