Acetanilide: Acetanilide,, synthetic organic compound introduced in therapy in 1886 as a fever-reducing drug. Its effectiveness in relieving pain was discovered soon thereafter, and it
MidÂ·west. A region of the north-central United States around the Great Lakes and the upper Mississippi Valley. It is generally considered to include Ohio, Indiana, Illinois, Michigan, Wisconsin, Minnesota, Iowa, Missouri, Kansas, and Nebraska. The area is known for its rich farmlands and highly industrialized centers.
According to the Wikipedia article cited below, the definition of midwest depends on source. Minnesota, Iowa, Wisconsin, Michigan, Illinois, Indiana and Ohio are usually considered in the midwest and the Dakotas, Nebraska, Missouri, Kentucky and West Virginia are sometimes included.