The refers to a collection of governing rules compiled and promulgated in 689, one of the first, if not the first collection of Ritsuryà  laws in classical Japan. This also marks the initial appearance of the central administrative body called the Daijà Â-kan (Council of State) composed of the three ministersâÂÂthe Daijà Â-daijin (Chancellor), the Sadaijin (Minister of the Left) and the Udaijin (Minister of the Right).
In 662, Emperor Tenji is said to have compiled the first Japanese legal code known to modern historians. The à Âmi-ryà Â, consisting of 22 volumes, was promulgated in the last year of Tenji's reign. This legal codification is no longer extant, but it is said to have been refined in what is known as the Asuka Kiyomihara ritsu-ryà  of 689. The compilation was commenced in 681 under Emperor Tenmu. The Emperor died in 686, but the finalization of the Code took a few more years. It was promulgated in 689. These are understood to have been a forerunner of the Taihà  ritsu-ryà  of 701.
Although not "finalized" (not incorporating a penal code, a ritsu, for instance), the code already incorporated several important regulations (for instance compulsory registration for citizens and pestilence reporting system), which led to the more complete Taihà  Code.