Olovyanninsky District was created in 1926.
Takhtamukaysky District was created in 1934.
Mersch District was created in 1857.
Nakapiripirit District was created on 2001-07-01.
East Kameng district was created in 1980.
In raigad district in Maharashtra.
Papakura District was created in 1989.
Aginsky District was created in 1941.
Borzinsky District was created in 1926.
Ellembele District was created in 2008.
Sudbury District was created in 1907.
Khorinsky District was created in 1923.
Kalarsky District was created in 1938.
Zianchurinsky District was created in 1930.
Xinying District was created in 2010.
Nerchinsky District was created in 1926.
Takhtamukaysky District was created in 1934.
The District Leader was created in 1906.