Although other people have different opinions, Nantan City has had a deep relationship with the central administrative government for a long time because the provincial capital was located in former Yagi town, and Himuro (ice house used to store ice throughout the year prior to the invention of the refrigerator) which is used as a place name at present, was established there.
異説もあるが、旧八木町に丹波国府が置かれたり、今では地名となっている氷室があったりするなど、古くから中央律令政府とつながりは深かった。