Template:Wp-Sheridan County, Wyoming-History

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Sheridan County was created by the legislature of the Wyoming Territory on March 9, 1888. The county was formed from a portion of Johnson County. Sheridan County was named for Philip Sheridan, a general in the American Civil War and controversial Indian fighter.

A portion of Sheridan County was annexed in 1897 to create Big Horn County. Sheridan County boundary lines were also slightly altered in 1911, and again in 1929, after which it has retained its boundary lines to the present time.