2-522: Rikkokushi ( 六国史 ) is a general term for Japan's Six National Histories chronicling the mythology and history of Japan from the earliest times to 887. The six histories were written at the imperial court during the 8th and 9th centuries, under order of the Emperors. The basic sources were the court records kept by the Ministry of Central Imperial Affairs, and the biographies of meritorious officials composed in
4-605: The Ministry of Ceremonial Affairs. The collection consists of the following texts: The national histories were discontinued after the Sandai Jitsuroku ; they were followed by the four Mirror books (starting with Ōkagami ). Shiky%C5%8D The shikyō ( 四鏡 , "four mirrors") are four Japanese histories in the rekishi monogatari genre from the late Heian period to the early Muromachi period . They are also known as kagami mono ( 鏡物 ) . The four histories are: This Japanese history–related article
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