Donut lovers are in for a special treat.

On Friday, June 5, major donut companies like Dunkin' Donuts and Krispy Keme will be participating in National Doughnut Day, which means patrons will be given free doughnuts.

According to Patch.com, National Doughnut Day was created in 1938 in honor of the Doughnut Lassies who served doughnuts to soldiers during World War I.

To commemorate the holiday, Krispy Kreme will give away free doughnuts. Likewise, Dunkin' Donuts restaurants will give away one doughnut to customers who purchase a beverage.

In a press release, Dunkin' Donuts announced that the deal will extend to participating locations nationwide and will continue throughout the day "while supplies last."

"Donuts have a special place in our country's history and culture, creating moments of delight, lifting spirits and bringing people together at work and at home," said Jeff Miller, vice president of product innovation at Dunkin' Brands, according to Time.

Dunkin' Donuts also touts its 65-year history serving its signature donuts as the No. 1 donut retailer in the country.

"The company sells 2.8 billion donuts and MUNCHKINS® donut hole treats annually worldwide. Within the United States, Dunkin' Donuts offers more than 70 varieties of donuts, including beloved flavors such as Boston Kreme, Glazed, Chocolate Glazed Cake and Chocolate Frosted," reads a statement.

Doughnuts were first created by the Dutch, who were known to make "olykoek," which means oily cake. The Dutch doughnuts didn't have a hole and were fried in hot oil and the dough was sweet. However, in 1847, at the age of 16 Hanson Gregory claims to have created the holed-out doughnut using a pepper pot to punch out holes and to help his doughnuts cook more evenly.

Later on, New Yorker Adolph Levitt invented a doughnut machine in 1927, and by 1940, doughnuts were declared as the "Hit Food of the Century of Progress" by the World's Fair in Chicago, reports CNN.