| http://www.w3.org/ns/prov#value | - In 1862 Confederate Guerrillas from nearby Missouri led by William Quantrill raided the Johnson County communities of Olathe and Spring Hill, killing half a dozen men and destroying numerous homes and businesses.The county was largely rural until the early 20th century, when communities such as Overland Park and Mission Hills were developed as suburbs of Kansas City, Missouri.
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