The Half Century of Progress 7 features the giant Prairie Plows that broke the plains to make Agriculture our most important industry in the United States. You will see over 4 hours of tractors plowing, corn pickers picking and corn and soybean harvesting. The Giant tractor Earthquake pulls a 20 bottom plow with ease. The event is held every other year at the Rantoul Air Base. The class of 1965 is featured in the parade. There is a tractor pull, a working corn crib and we interview owners from all the major brands. This is a 2 disk set.