Shiga District, Shiga

• 1868 (Boshin War/Meiji Restoration) – The shogunate territories in the district become part of Ōtsu Prefecture (Ōtsu-ken)
• 1871 (Abolition of the han system) – All feudal domains (-han), including those containing territories in the district, become prefectures (-ken).
• 1871/72 – In the first wave of prefectural mergers, the entire district becomes part of Ōtsu Prefecture which is then renamed to Shiga after the district
• 1878/79 – The ancient districts of provinces are reactivated as modern administrative units as districts of prefectures: the district government of Shiga is established in Ōtsu-Hashimoto-chō (?, 大津橋本町)

Numbered: The new municipalities of Shiga District in 1889. 1 represents Ōtsu Town, seat of the district government. Colours indicate municipal borders in the 21st century

• 1/4/1889 (establishment of municipalities & Great Meiji mergers) - The "Town and Village Code" (町村制, chō-son-sei), the new law establishing towns and villages as modern political units, was implemented. As a result, the town of Ōtsu and the villages of Shiga (滋賀村, Shiga-mura, "Shiga Village"), Zeze, Ishiyama, Sakamoto, Shimosakamoto, Ogoto, Katata, Ōgi, Mano, Ikadachi, Katsuragawa, Wani, Kido and Komatsu were formed.
• 1/4/1898 - The "District Code" (郡制, gun-sei), the revised law governing districts, was implemented, establishing indirectly elected district assemblies (gun-kai) and collective executive councils (gun-sanjikai).
• 1/10/1898 - Ōtsu Town (大津町, Ōtsu-chō) became [by definition of city: district-independent] Ōtsu City (大津市, Ōtsu-shi).
• 20/7/1901 -
  • The village of Zeze became the town of Zeze.
  • The village of Katata became the town of Katata.
• 1/4/1923 - The district assembly was abolished. The district office remains.
• 1/7/1926 - The district government was abolished, reducing the district (again) to a geographical division.
• 1/1/1930 - The village of Ishiyama became the town of Ishiyama.
• 10/5/1932 - The village of Shiga merged into the city of Ōtsu.
• 1/4/1951 - The towns of Zeze and Ishiyama merged with the city of Ōtsu into the new city of Ōtsu.
• 1950s (Great Shōwa mergers)
  • 1/4/1955 - The town of Katata and the villages of Ōgi, Mano, Ikadachi and Katsuragawa merged into the town of Katata.
  • 1/10/1955 - The villages of Wani, Kido and Komatsu merged into Shiga Town (志賀町, Shigachō).
  • 30/9/1956 - Part of the town of Shiga (Kamogawa) merged into the town of Takashima from Takashima District.
• 1/4/1967 - The village of Katata merged into the city of Ōtsu.
• 20/3/2006 - The town of Shiga merged into the city of Ōtsu. Shiga District was dissolved as a result of this merger.

Light blue autonomies are Shiga District's town, deep blue autonomies are Shiga District's village, and gray autonomies are others.