Wind ripples through acre after acre of wheat in Sumner County, an area that produces more hard red wheat than any other in the United States. Mennonites who emigrated from Europe in the 1870's planted the first wheat crops while isolated in the vast, open spaces of the grasslands. The courage and persistence of these pioneers left a legacy that continues to influence America's entire agricultural industry. Although known primarily for wheat production, Kansas is also a leading producer of sorghum, sunflower seeds, and corn.