List of mergers in Osaka Prefecture

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Here is a list of mergers in Osaka Prefecture, Japan since the Meiji era.

Prefectural mergers and border changes[]

This list is incomplete. Many changes are missing.

Osaka before 1881[]

  • 1868 (Boshin war/Meiji restoration) – Osaka is established as prefecture (-fu) in succession to the shogunate administration in Osaka (bugyō→saibansho).
  • August 1868 (sixth month, Meiji 1) – (previously shogunate city Sakai and shogunate domain in Izumi province) is established/separated from Osaka as prefecture (-ken).
  • 1869 – (previously shogunate lands in Kawachi province) is established/separated from Osaka as prefecture (-ken).
  • 1869 – (previously shogunate lands in Settsu province; later renamed →Toyosaki) is established/separated from Osaka as prefecture (-ken).
  • 1869 – Toyosaki is split between Osaka and Hyōgo.
  • 1871/72 (Abolition of domains and first wave of prefectural mergers) – The prefectures and Asada are merged into Osaka. After consolidation, Osaka covers the Eastern part of Settsu province.

Nara before 1876[]

See the List of mergers in Nara Prefecture

Sakai[]

  • 1869 – Kawachi is merged into Sakai.
  • 1870 – Sayama Domain is returned to the central government and merged into Sakai.
  • 1870 – Mikami Domain with holdings in Ōmi and Izumi provinces moves the domain seat from Mikami in Ōmi (today: Yasu, Shiga) to Yoshimi in Izumi (today: Tajiri, Osaka) and becomes .
  • 1871/72 (Abolition of domains and first wave of prefectural mergers) – The prefectures Hakata, Kishiwada, Yoshimi and Tannan are merged into Sakai. After consolidation, Sakai encompasses all of Izumi and Kawachi provinces without exclaves/enclaves.
  • 1876 – Nara is merged into Sakai.
  • 1881 – Sakai is merged into Osaka prefecture.

Osaka since 1881[]

  • 1887 – Nara prefecture is split off from Osaka prefecture.

District mergers[]

This list is incomplete. Some mergers are missing.

  • 1878–80 (Reactivation of districts as administrative units, establishment of urban districts) – Osaka is subdivided into four urban districts (-ku) and seven [rural] districts (-gun) from ancient Settsu province. Sakai consists of one urban district and four [rural] districts from ancient Izumi province, 16 districts from Kawachi and 15 districts from Yamato (becomes Nara in 1887).
  • 1896 – The districts and are merged to form Toyono District.
  • 1896 – The districts and (from ancient Izumi Province) are merged to form Senboku-gun ("Izumi North district").
  • 1896 – The districts and (from ancient Izumi Province) are merged to form Sennan-gun ("Izumi South district").
  • 1896 – The districts , , , , , and (from ancient Kawachi Province) are merged to form Minami-Kawachi ("South Kawachi") District
  • 1896 – The districts , , , , and (from ancient Kawachi Province) are merged to form .
  • 1896 – The district , and (from ancient Kawachi Province) are merged to form .

Municipal mergers[]

This list is incomplete. Most mergers are missing.

Establishment of modern municipalities 1889/1896[]

After the modern municipalities (cities, towns and villages) were introduced and the Great Meiji mergers performed in 1889 and after the 1896 #District mergers, Osaka consisted of:

  • 2 [district-independent] cities (-shi)
    • Four urban districts (Higashi-ku, Nishi-ku, Minami-ku, Kita-ku) become part of the new Osaka City (Ōsaka-shi) in 1889.
    • The urban district Sakai (Sakai-ku) becomes Sakai City (Sakai-shi) in 1889.
  • 9 districts (-gun)

Mergers 1889–1950[]

  • 1890 – in Shiki District is merged into .
  • 1892 – and in Ōtori District merge to form .

Mergers in the 1950s (Great Shōwa mergers)[]

Mergers since the 1960s[]

  • On February 1, 2005 - The town of Mihara (from Minamikawachi District) was merged into the expanded city of Sakai. Since then, Sakai has been split into wards of which Mihara-ku is one.

References[]

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