It is said, however, that the development of Daigaku-ryo was delayed due to the influence of the ensuing Jinshin War, and that the concrete Daigaku-ryo system was finalized thanks to the introduction of the Taiho Ritsuryo Code (Gakuryo [the rule of education]).
しかし、その後の壬申の乱などの影響で整備が遅れ、大宝律令（学令）の制定により具体的な制度が確立したといわれる。