Friday, June 6, is National Donut Day and you can get free treats at Duck Donuts, Dunkin', Krispy Kreme and Sheetz convenience stores.

Krispy Kreme is celebrating National Doughnut Day with a sweet giveaway. On Friday, June 6, anyone can get a free doughnut of their choice at participating Krispy Kreme shops nationwide, the Charlotte-based doughnut chain said. No purchase is necessary.

A day dedicated to delicious deals on doughnuts has its origins in an unlikely place: the battlefields of World War I. National Donut Day is celebrated on Friday, June 6. The freshly baked holiday began in 1938 when The Salvation Army in Chicago created the holiday to honor "Donut Lassies,