It's a busy day for celebrations—from indulging in National Brownie Day to celebrating the imagination of Pretend to Be a Time Traveler Day . But on this episode of National Day Spotlight , Marlo Anderson and co-host Alice Anderson are challenging their vocabulary as they focus entirely on the mental workout of National Crossword Solvers Day . They’ll explore the history of the crossword puzzle, and how it helped win World War Two. Tune in for a mentally engaging episode!