However, Onmyoryo (a government office that had jurisdiction over calendar preparation, astronomy, divination, etc.) was abolished in 1870 after Meiji Restoration, and Daijokan (Grand Council of State) pronounced Tsuchimikado that Daigaku-ryo (Bureau of Education under the ritsuryo system) should be responsible for the affairs related to astronomy and the study of the calendar since then.
しかし、明治維新後の明治3年（1870年）に陰陽寮が廃止され、太政官から土御門に対して、天文学・暦学の事は、以後大学寮の管轄になると言い渡しを受ける。