Dairy Queen Blizzard

"When the United States was emerging from the Great Depression in 1938, J.F. McCullough was experimenting with the idea of creating a new frozen dairy product. McCullough felt ice cream tasted better when it was soft and dispensed fresh from the freezder, not frozen solid. To test his theory with the public, McCulllough held and "All-the-Ice-Cream-You-Can-Eat-for-Only-10-Cents" sale at a friend's ice cream store. More than 1,600 people were served the soft ice cream in the course of two hours. Convinced that the new product was a big hit, McCullough had to find a machine that could dispense the product at the right consistency. It wasn't long before he found Harry Oltz, the inventory of a freezer that could do the job. In 1940 McCullough opened the first Dairy Queen in Joliet, Illinois...."