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National Detroit-Style Pizza Day - June 23


On June 23rd, join the celebration born in the birthplace of the American Automobile and Motown. National Detroit-Style Pizza Day recognizes the square-cut pizza style first served at Buddy’s Pizza in 1946 in the city that also gave us Madonna, the Mustang, and the first paved road. And Detroit-Style Pizza is arguably Detroit’s greatest contribution!

What makes it Detroit-Style? It starts with the crust – deep and thick in composition and yet light and airy in taste. The steel square pans (borrowed from the auto industry) give it a unique shape and one-of-a-kind flavor. Authentic Detroit-Style Pizzas layer the toppings backward, meaning they lay the gourmet pepperoni directly on the hand-stretched dough. Next comes a generous layer of Wisconsin Brick Cheese, spread all the way to the edges of the pan. The resulting caramelized cheese creates an incredibly crisp crust. Finally, racing stripes of tomato sauce finish the top.

Detroit-Style Pizza has grown beyond Buddy’s into a nationwide phenomenon that you can find from Brooklyn to Denver to Los Angeles.

HOW TO OBSERVE #DetroitStylePizzaDay

Go on a pizza adventure and enjoy Detroit-Style Pizza. Visit one of the 19 Buddy’s Pizza locations, where authentic Detroit-Style Pizza began in 1946. If you can’t make it to Michigan, order a frozen pie shipped anywhere in the nation from Goldbelly or find a Detroit-Style pizzeria near you. Make some memories while you share an authentic Detroit-Style Pizza with loved ones.

Who is a fan of Detroit-Style Pizza? Be sure to celebrate and use #DetroitStylePizzaDay on social media.


Buddys Detroit-Style PizzaBuddy’s Pizza in Detroit, Michigan, founded National Detroit-Style Pizza Day to celebrate the pizza category’s 75th anniversary in 2021. In 1946, at a restaurant called Buddy’s Rendezvous, a delicious deep-dish Sicilian-style pizza baked in blue steel automotive drip pans was born. Today, Buddy’s Pizza keeps the flavor and tradition alive by making the same one-of-a-kind square pizza. For generations, they’ve been building their square pizzas from the bottom up. Discover what makes them so special in the Motor City.

In 2021, the Registrar at National Day Calendar proclaimed National Detroit-Style Pizza Day to be observed annually on June 23rd.



Each year on June 23rd, National Pink Day colors the world in vibrant shades of pink and explores everything it represents. 

First used as a color name in the late 17th century, pink is a pale red color which got its name from a flower of same name.

According to surveys in both the United States and Europe with results indicating that the color pink combined with white or pale blue is most commonly associated with femininity, sensitivity, tenderness, childhood, and the romantic. Pink, when combined with violet or black, is associated with eroticism and seduction.

Historically Pink

Dating back to the 14th century, “to pink” (the verb) means “to decorate with a perforated or punched pattern.”

It would have been curious to find pink used in fabric or decor during the Middle Ages. Occasionally it was seen in women’s fashion and religious art, however. In the 13th and 14th centuries, artists sometimes portrayed the Christ child dressed in pink, the color associated with the body of Christ. Artists also primarily used pink for the flesh color of faces and hands during the Renaissance.

The Rococo Period (1720-1777) was the golden age for the color pink. Pastel colors became very fashionable in all the courts of Europe during this time. Madame de Pompadour (1721-1764), the mistress of King Louis XV of France, was known for wearing the color pink, often combined with light blue. At one point, Ms. Pompadour had a particular tint of pink explicitly made for her.

Pink ribbons or decorations were worn by young boys in 19th century England. The men in England wore red uniforms, and since boys were considered small men, boys wore pink.

Pink became much bolder, brighter, and more assertive in the 20th century and in 1931, the color “Shocking Pink” was introduced.

As one of the most common colors of flowers, pink serves to attract the insects and birds that are necessary for pollination.

Pink in Language

While pink comes in numerous shades, its meanings vary, too.

  • In the pink – This phrase refers to someone who is in top form, good health or good condition.
  • To see pink elephants – When someone “sees pink elephants” they are hallucinating due to too much drink.
  • Pink slip – When an employer gives a person a pink slip it means they’ve been fired or dismissed from a job. The term was first recorded in the United States in 1915.
  • Pink-collar worker  Refers to persons working in jobs conventionally regarded as “women’s work.”
  • Pink Money  The term describes the economic spending power of the LGBT community. Other uses include “the pink pound” or “pink dollar.”
  • Tickled pink  When one is exceptionally pleased, they are “tickled pink.”

HOW TO OBSERVE #NationalPinkDay

Think pink on June 23rd. Whether you wear it, eat it or make a donation, you’ll be celebrating the day. However, you don’t have to stop there. Try these other fun pink ideas:

  • Plant or give some pink flowers.
  • Use pink in a sentence.
  • Temporarily (or permanently) dye your hair pink.
  • Color or paint something in shades of pink.
  • Paint your nails pink.

Use #NationalPinkDay in social media.

Educators and families, visit the National Day Calendar Classroom for more ways to Celebrate Every Day!


While we haven’t discovered the founder of the National Pink Day, National Day Calendar is researching the origins of this colorful celebration. 



The games get intense under the hot summer sun. On June 23rd, National Hydration Day reminds us to replace fluids lost in the heat of battle.

The human body contains more than 60 percent water. Maintaining that balance while training is a challenge. And doing it during the summer months is a practice that must be consistent. Becoming overheated or dehydrated can lead to heat stroke and possibly death.

You can help prevent dehydration by being hydrated before a workout even begins. This essential step goes a long way to a more effective workout. If you are under-hydrated before you start, maintaining or catching up on hydration becomes difficult once the sweating starts. Drink plenty of fluids throughout the training, too. Fluids can include sports drinks that contain electrolytes (Magnesium, Calcium, Sodium, and Potassium) to replenish the essential minerals the body loses through perspiration.

For some sports, products like FuelGard™ Mouthgard and Electrolyte Tablets, offer dual benefits. It protects the athlete and provides essential electrolytes for maintaining hydration balance while the athlete trains.

After the workout, you will need to continue replenishing fluids.

HOW TO OBSERVE #NationalHydrationDay

Whether you are an athlete or not, stay hydrated on these hot summer days. Drink plenty of fluids and make it part of your daily routine. Use #NationalHydrationDay to share on social media.


SafeTGard Corporation founded National Hydration Day in honor of football Coach Victor Hawkins (September 1, 1964 – June 23, 2012) who invented a mouthguard that releases electrolytes to keep his players hydrated during games and practices. This day honors Coach Hawkins’ contributions to athlete health, safety, and success. SafeTGard Corporation founded the day in 2016 to increase awareness of the importance of proper hydration to athletes everywhere.

On June 21, 2016, the Registrar at National Day Calendar proclaimed the day to be observed on June 23rd, annually.NATIONAL PECAN SANDIES DAY – June 23


If you enjoy cookies, then National Pecan Sandies Day on June 23rd is a day worth celebrating. The American food holiday is observed annually and offers bakers and cookie lovers a chance to enjoy a classic cookie.

As long as baking has been documented, cookie-like wafers have existed. Part of the reason may be because these sturdy cookies travel very well. Cookies have changed and evolved over the years with the modern standards of sweetness and variety, though. The mild sweetness of these cookies pairs well with tea and coffee. And the texture of these melt-in-your-mouth cookies will remind you of the shortbread cookies your grandma used to make.

Another shortbread version of a pecan sandie is called a Mexican or Italian Wedding cookie. These powdered sugar-coated balls also melt in your mouth and look like delicious snowballs – another name for the sweet morsel. They’re easy to make and store, too! Either version of the cookie is Celebrate Every Day® approved!

HOW TO OBSERVE #NationalPecanSandiesDay

Whether you visit your favorite bakery or bake your own, pecan sandies will hit the spot. Serve them with an icy cold glass of milk, coffee or tea.

Pecan Sandies Recipe

Use #NationalPecanSandiesDay to share on social media.


National Day Calendar continues researching the origins of this cookie holiday. 

On Deck for June 24, 2021

National Days

International Days

June 23rd Celebrated (and Not So Celebrated) History

The first SAT exam is administered by the College Board.


Signed by 12 nations in 1959, the Antarctic Treaty takes effect. The treaty reserves the Antarctic continent for peaceful, scientific endeavors.


A patent for the hula-hoop was issued to Arthur Melin. The toymaker was part owner of Wham-O and know n for making slingshots and a popular toy known today as the Frisbee.


The British people vote in favor of Brexit – leaving the European Union.

Recipe of the Day

Peanut Butter BBQ Chicken Pizza

Prep Time:  30 minutes

Bake Time: 10-12 minutes

Total Prep: About 40 minutes

Serves 4 (with 2 slices each)

Peanut Butter BBQ Chicken Pizza recipe


1 package pizza crust
1 cup shredded rotisserie chicken
1 tablespoon peanut butter
1/4 cup BBQ sauce
2 green onions, chopped
8 oz. mozzarella cheese


Prepare packaged crust according to package directions.

Combine peanut butter with 1/4 cup of BBQ sauce and mix thoroughly.

Spread over the prepared and partially-baked crust.

Add chopped rotisserie chicken, green onions, and mozzarella cheese.

Bake 10-12 minutes until cheese begins to turn golden.

June 23rd Celebrated (and Not So Celebrated) Birthdays
June Carter Cash – 1929

The Grammy-winning singer-songwriter began her career with the Carter Sisters. She would later marry country singer Johnny Cash. Shortly before her death, she won two Grammys for her album Wildwood Flower.

Wilma Rudolph – 1940

The American track and field athlete became the first woman to win three gold medals when she competed at the 1960 Rome Olympics.

Clarence Thomas – 1948

Replacing the first, and currently the only African-American United States Supreme Court Justice, Clarence Thomas has served on the court since 1991. The conservative attorney would grab headlines during his hearings due to accusations of harassment but would be confirmed by the slimmest of margins by the Senate.

Francis McDormand – 1957

The award-winning actress has achieved the uncommon status of the Triple Crown of Acting. With awards from the Academy Awards, Golden Globes and the Emmys, McDormand has received critical success. She has also been recognized by the British Academy.

About National Day Calendar

National Day Calendar® is the authoritative source for fun, unusual and unique National Days! Since our humble beginnings on National Popcorn Day in 2013, we now track nearly 1,500 National Days, National Weeks and National Months. In addition, our research team continues to uncover the origins of existing National Days as well as discover new, exciting days for everyone to celebrate.

There’s a celebration for everyone. While National Road Trip Day satisfies the itch to wander, many pet days let us share our love of animals. National 3-D Day and National Astronaut Day honor the advancement of technology, too. Every food day you can imagine (National Avocado Day, for example), will keep you celebrating, also!

Be sure to stay in the know by signing up for our e-mail updates. Also, follow us on Facebook, Twitter, and Instagram

Our Ambassador Program is another way #CelebrateEveryDay®! Whether you become an ambassador or follow one of the savvy ambassadors, their fun videos and posts will keep you prepared for every holiday.

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