Dairy Queen, often abbreviated DQ, is a chain of soft serve and fast food restaurants owned by International Dairy Queen, Inc, which also owns Orange Julius and Karmelkorn. The name 'Dairy Queen' is taken from the name of their soft serve product, which the company refers to as 'Dairy Queen' or 'DQ'. The first Dairy Queen store opened in 1940 in Joliet, Illinois. The company's corporate offices are located in Edina, Minnesota. The soft serve formula was first developed in 1938 by John Fremont 'Grandpa' McCullough, (1871-1963), and his son Bradley. They convinced friend and customer Sheb Noble to offer the product in his ice cream store in Kankakee, Illinois. On the first day of sales, Noble dished out more than 1,600 servings of the new dessert within two hours. Noble and the McCulloughs went on to open the first Dairy Queen store in 1940 in Joliet, Illinois. While this Dairy Queen has not been in operation since the 1950s, the building still stands at 501 N Chicago St.
Contributions by MJHankel, Moncrief, and Timothy Chavis.