So far as fake holidays go, National Donut Day, held every year on the first Friday in June, is a pioneer. It’s not nearly as fake and overtly contrived as johnny-come-latelys like, say, 7-Eleven Day. The Donut Day tradition started way back in World War I, with Salvation Army workers providing donuts to soldiers on the front lines in Europe. In addition to its air of authenticity, National Donut Day is beloved for fairly obvious reasons.