this era is called Jogan no chi (glorious Jogan rule) due to the political situation having become stable and the success of the development support policy and Jogan Kyakushiki Code (Regulations and Procedures of the Jogan Era).
良房執政期を中心とした時期は、政治も安定し、開発奨励政策や貞観格式編纂などの成果により、貞観の治と呼ばれている。