Today is National Ice Cream Day.<br />To celebrate CNN compiled some little known facts about America's favorite frozen treat.<br />Ice cream sales were boosted by prohibition. New technologies made it easier than ever to manufacture and cool ice cream, sending its popularity soaring.<br />According to the International Dairy Foods Association. the average American consumes more than 20 pounds of ice cream each year.<br />What's the most popular flavor in the United States?<br />According to the International Dairy Foods Association it's vanilla.
