Holidays Around the World National Walnut Day By ASI Admin May 16, 2021 February 16, 2022 handouts National Walnut Day is celebrated on May 17 every year!Fun fact: National Walnut Day was established by the Walnut Marketing Board in the 1950s. Fun fact: A walnut tree can live up to 250 years.Celebrate this day by making some delicious candied walnuts you can eat as a snack, eat on a salad, or gift to someone! Click here to download the PDF Click here for a full list of handouts National Strawberry Month William Grant Still: The Dean of African-American Classical Composers