Dad's originated in Chicago in 1937. This old time favorite quickly found a following around the country and became one of the most iconic names in soda. Building on Dad's root beer success, Dad's through the years has introduced a variety of flavored sodas. Dad's Diet Root Beer will give the icon brand you love with none of the calories. Orca bottles Dad's exclusively with pure cane sugar as it was made in the 1940's. 12 - 12 oz. glass bottles.