In Japan, the concept of Ritsuryo was actively adopted in order to reinforce and substantiate national power against the threat of the Tang during the late seventh century, and Asuka Kiyomihara Ryo was first established as the pioneer of Ritsuryo.
日本では、唐の脅威にさらされた7世紀後期、国力の充実強化を目的として、律令の概念が積極的に受容され、まず先駆的な律令として飛鳥浄御原令が制定された。