After the [[645]] Taika Reform, geographical names were changed to fit the new governmental system. Before the Taika Reform, Nihihari was called ''Nihihari no Kuni'' 新治国, but after, it was called ''Nihihari no Kohori (Koori)'' 新治郡. Emperor Kotoku's reign coincided with the Taika Reform, which places the creation of Hitachi province and the making of Nihihari as a district therein, at the same general time period. | After the [[645]] Taika Reform, geographical names were changed to fit the new governmental system. Before the Taika Reform, Nihihari was called ''Nihihari no Kuni'' 新治国, but after, it was called ''Nihihari no Kohori (Koori)'' 新治郡. Emperor Kotoku's reign coincided with the Taika Reform, which places the creation of Hitachi province and the making of Nihihari as a district therein, at the same general time period. |