Munn V. Illinois

Munn v. Illinois, 94 U.S. 113 (1877), was a United States Supreme Court case dealing with corporate rates and agriculture. The Munn case allowed states to regulate certain businesses within their borders, including railroads, and is commonly regarded as a milestone in the growth of federal government regulation. Munn was one of six cases, the so-called Granger cases, all decided in the United States Supreme Court during the same term, all bearing on the same point, and all decided on the same principles.