
Customers can obtain a free classic donut at Dunkin' on National Donut Day 2024 by purchasing any beverage at participating Dunkin' locations on Friday, June 7. The free classic donut offer is available while supplies last.

National Donut Day has its roots in World War I, when nearly 250 Salvation Army volunteers known as "Donut Lassies" traveled overseas to provide emotional and spiritual support, as well as fried confections, supplies, and other services to troops on the front lines2. The Salvation Army in Chicago established the first National Donut Day in 1938 to commemorate their work and help those in need during the Great Depression5. The day has since evolved into a celebration of donuts, with various donut outlets giving discounts and offering free donuts to customers.

Krispy Kreme is offering a free doughnut to customers on National Donut Day, which falls on Friday, June 7. Here are the terms of the offer:
The offer is valid for any one doughnut on the menu, except the limited-time offerings. This means you can get a free glazed, iced, filled, or even cake doughnut, but you won't be able to try one of the featured Dolly Parton doughnuts or any other limited-time doughnuts.
The offer is available at participating Krispy Kreme shops, both in-store and through the drive-thru.
No purchase is necessary to receive the free doughnut. You can simply go in, ask for your favorite doughnut, and head out.
In addition to the free doughnut offer, Krispy Kreme is also running a deal on dozens. All day on June 7, when you buy one dozen, you can get a second Original Glazed dozen for just $2. This deal is available in-store or via drive-thru at participating Krispy Kreme shops.
Please note that this information is based on the web search context provided and may be subject to change. It's always a good idea to check with your local Krispy Kreme shop for any specific details or restrictions.