B-K Root Beer is an independent chain of drive-in fast-food restaurants, distinguished by their draft root beer and root beer floats. A midwestern chain, B-K restaurants are located in Indiana, Michigan, and Ohio. B-K stands for "Bergerson & Kenefick". The first one was built in Wabash, Indiana, in 1940. At one time, there were 238 B-K drive-ins around Indiana and surrounding states. It was founded by Melvin and Mary Bergerson in the mid-1940s in Michigan City, Indiana.