About National Deep Dish Pizza Day
To celebrate Chicago deep dish pizza—originated by Uno's—and the efforts by UNO Pizzeria & Grill to bring deep dish pizza to the entire United States. The original restaurant, which opened in 1943, began serving deep dish as a way to make sure hungry families could get a "real meal" when it came to pizza. Up to that point, pizza was hardly more than a snack.
Annually celebrated on the anniversary of the day (Apr 5, 1979) that the first restaurant outside Chicago opened (in Boston, MA).
Similar Observances
National Burrito Day 🌯
Celebrate National Burrito Day with delicious deals and mouthwatering burritos; indulge in your favorite flavors and join the fiesta of flavors!
Read More
Read More
National Chocolate Mousse Day
National Chocolate Mousse Day is a wonderful opportunity to indulge in one of the world's most beloved desserts.
Read More
Read More
Other Observances on April 5th 2026
A Drop of Water Is a Grain of Gold 🌧️
This national holiday in Turkmenistan underlines the value and appreciation of water as a resource.
Read More
Read More
