As for Myobodo (Law) and Kidendo (History), which were most likely established during the Jinki and Tenpyo periods, the former adopted the Ritsuryo Legal Codes itself as a textbook, and in the "Engishiki," 'Ritsu' was included in the medium scriptures and 'Ryo' in the small scriptures.
神亀・天平期に成立したとされている明法道・紀伝道では、前者は律令そのものを教科書として『延喜式』では「律」を中経・「令」を小経としている。