In the same way, technical and academic official positions were also held by certain clans such as the Kamo clan and Abe clan of the Onmyoryo (Bureau of Divination), Sugawara clan and Oe clan of the Daigakuryo Kidendo (the study of the histories) (Bunsho hakase) with the background of the establishment of Kagaku.
同様に技術系・学術系の官職においても、陰陽寮の賀茂氏・阿倍氏、大学寮紀伝道（文章博士）の菅原氏・大江氏のように家学の成立を背景とした世襲的な継承が行われるようになった。