Battle Creek, city (1990 pop. 53,540), Calhoun co., S Mich., at the confluence of the Kalamazoo and Battle Creek rivers; settled 1831, inc. as a city 1859. It is an agricultural trade center known for its cereals. Other manufactures include automotive parts and accessories, moldings, and paper products. Battle Creek Sanitarium (founded by Dr. J. H. Kellogg in 1866 as the Health Reform Institute), a natural history museum, an arts center, and a zoo are in the city. The annual Cereal City Festival is held in June.