You don’t have to spend dough on these ‘nuts. In honor of National Doughnut Day on Friday, June 5, confection chains across the nation are offering sweet deals and freebies on America’s favorite circular pastry. While this day might sound like a marketing gimmick, it was actually established in 1938 to commemorate the “Doughnut Lassies” of World War I, Salvation Army volunteers who served these tasty pastry rings to soldiers on the front lines. Doughnut depots have since follow suit with the