In addition, because the imperial court started to lose power after the Kamakura period, and it became difficult to distribute calendars produced in Kyoto to regional areas, calendars (private calendars) based on a method of making calendars of the Senmyo Calendar began to be produced independently in various parts of the country.
さらに、鎌倉時代以降は朝廷の力が弱まり、京で作られた暦が地方へ伝達しにくくなったことから、各地で独自に宣明暦の暦法によった暦（民間暦）が作られるようになった。