Kawachi Province
Kawachi Province (河内国, Kawachi no kuni) was a province of Japan in the eastern part of modern Osaka Prefecture. It originally held the southwestern area that was split off into Izumi Province. It was also known as Kashū (河州?)
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Chiku
Kawachi was divided into three counties (地区, chiku): northern (北河内, Kita Kawachi), central (中河内, Naka Kawachi), and southern (南河内, Minami Kawachi).
The northern county comprised the modern Hirakata, Neyagawa, Kadoma, Moriguchi, Shijōnawate, Daitō, and Katano, Osaka areas.
The central county comprised the modern Higashiōsaka, Yao, and Kashiwara, Osaka areas.
The southern county comprised the modern Sakai's eastern part (all of Higashi-ku and Mihara-ku, and part of Kita-ku), Matsubara, Habikino, Fujiidera, Tondabayashi, Kawachinagano, Ōsakasayama, and Minamikawachi District areas.
Development
Kawachi province was established in the 7th century. On 11 May 716, the Ōtori, Izumi, and Hine districts were split off to form Izumi Province (和泉監, Izumi-gen). In December 720, the Katashimo (堅下郡, Katashimo-gun) and Katakami (堅上郡, Katakami-gun) districts were combined to become Ōagata (大縣郡, Ōagata-gun). On 15 September 740, Izumi Province was merged back in. On 30 May 757, that area was again separated to form Izumi Province (this time with the normal kuni designation).