Dad's Root Beer is an American root beer created in Chicago in 1937 by Ely Klapman and Barney Berns. Dad's earned a loyal following. Dad's Root Beer brand was famous throughout the Midwest and by the late 1940s, was one of the most consumed brands of root beer throughout the United States. Jules Klapman, son of co-founder Ely, successfully took the Dad's brand international. The name Dad's Old Fashioned Root Beer was selected in honor of Ely Klapman's father, and other fathers, who used to make root beer at home for their families (popular in the early 20th Century).

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