Category: 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 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.


    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.



    On June 23rd each year, International Women in Engineering Day highlights a profession that keeps on building. And when it comes to engineering, the profession fills roles across many sectors.

    Numerous fields require engineering specialties. Careers abound in architectural, aerospace, marine, electrical, and computer engineering. However, many more areas enlist engineering expertise. And the demand is growing every year, too. Despite that, women only fill a fraction of these positions. According to the U.S. Bureau of Labor and Statistics, just under 13% of the engineers in the U.S. are women. Australia’s numbers are similar, too. However, in the UK the number dips to 9%.

    Campaigns around the globe spotlight the need for more women in the engineering workforce. Not only does it encourage women to enter engineering fields, but it spotlights the need for a diverse workforce. The day also celebrates the women engineers in the workforce. As role models, they are distinctly qualified to encourage more women to join the field.

    HOW TO OBSERVE #WomenInEngineeringDay 

    Women in engineering lead the way for many others to join the workforce. Share your experiences in the engineering field and encourage other women to pursue a career in engineering. The day is not only a celebration of women, but it also serves as an opportunity for education. Whether you seek more information for yourself, or impart your knowledge to others, take part in #WomenInEngineeringDay.

    • While celebrating the day, learn about women who paved the way for the women engineers of today.
      • Emily Warren Roebling – Study her contributions to the development and construction of the Brooklyn Bridge.
      • Olive Dennis – Her pursuit of an engineering degree led her to work for the Baltimore and Ohio Railroad. Learn about her success!
      • Thelma Estrin – After World War II, Estrin earned a Ph.D. in electrical engineering and later her interest grew in biomedical engineering.
      • Ellen Ochoa – Her distinguished career has taken her many places, including becoming an astronaut! In 1990, this electrical engineer became the first Hispanic woman in space.
    • Celebrate a woman engineer you know!
    • As an employer, recruit qualified women engineers and listen to what they have to say.
    • Attend career fairs to learn more about S.T.E.M. careers like engineering.
    • Educators, support girls in S.T.E.M. curricula.
    • Sponsor a Women in Engineering Day event. For tools and resources, visit

    Share your events and stories on social media using #WomenInEngineeringDay.


    In 2014, the Women’s Engineering Society launched National Women in Engineering Day in the United Kingdom. Over the years, the observance grew to a global event and in 2017, the day became international.



    Every year on June 23rd, International Widows’ Day gives special recognition to the situation of widows of all ages across the globe.

    The situation for widows is especially dire in developing countries. Some of the problems widows face in these countries include poverty, violence, social stigmatization, and health issues. According to recent statistics, there are about 258 million widows in the world. Nearly one in 10 widows live in extreme poverty. This is because many widows don’t have access to credit or other economic resources, including work.

    Widows in developing countries also face high instances of violence. This violence is especially prevalent in Africa and Asia. In these countries, widows are often victims of physical and mental violence. Widows are also forced to engage in life-threatening practices that are part of their husband’s burial rites. For instance, widows may be forced to drink the water their husband’s corpse was washed in.

    Due to poor nutrition and lack of adequate shelter, widows often develop health issues. Many widows do not have access to health care. If a widow’s husband died of AIDS, the information may be kept from them. This means some widows might have AIDS or HIV and not even know it. Many women in developing countries lose their husbands to conflict-related situations. If a widow has to flee their country, they struggle to care for themselves and their children in a refugee camp.

    HOW TO OBSERVE #InternationalWidowsDay

    In the past, the Loomba Foundation, which seeks to care for widows around the world, has held a special dinner to honor widows. Other events have included informational seminars that help to empower widows to have access to work, education, and healthcare. Governments also encourage their countries to uphold national laws to protect the rights of widows.

    To participate in this day:

    • Offer encouragement to a widow that you know.
    • Read the stories of 4 inspirational widows.
    • Research famous widows, including Queen Victoria, Jacqueline Kennedy, Coretta Scott King, Yoko Ono, and Laurene Powell Jobs.
    • Donate to an organization that cares for widows, such as The Modern Widows Club and Widow’s Hope.
    • Volunteer to help widows in your church or your community.

    Spread awareness for this day on social media with #InternationalWidowsDay.


    The Loomba Foundation established International Widows Day in 2005. They chose the date June 23rd, as it was the date that the mother of the foundation’s founder, Lord Loomba, became a widow. In December 2010, the UN General Assembly formally adopted June 23rd as International Widows’ Day. The first official UN International Widows Day was held on June 23rd, 2011.




    Every year on June 23rd, the United Nations Public Service Day celebrates the value and virtue of public service to the community. Also, on this day, the prestigious UN Public Service Awards are given.
    Public service is defined as a service intended for all members of the community. There are many areas of public service.

    • The public sector
    • Public safety
    • Education
    • Government and diplomacy
    • Nonprofit administration

    People choose to work or engage in public service for a variety of reasons. Some do it because they want to further the good of the public. For example, a lawyer might provide low-cost or free services for the public good. Other people work in public service to gain valuable work experience or for mentoring and networking opportunities.

    The United Nations has long recognized the roles public service workers perform in their communities. For this reason, they established the UN Public Service Awards. The awards promote and reward innovation and excellence in public services.

    The winners of these awards are divided into five regional groups. These groups include Africa, Asia-Pacific, Eastern Europe, Latin American and the Caribbean, and Western Asia. More than 250 initiatives have received the prestigious award. These projects have ranged from promoting gender equality to improving health services.

    HOW TO OBSERVE #UnitedNationsPublicServiceDay

    On this day, the UN recognizes the work of public servants. The UN also encourages young people to pursue a career in the public sector. The highlight of the day is the annual UN Public Service Awards ceremony. Cities around the world have hosted the ceremony including, New York City, Vienna, Barcelona, Seoul, The Hague, and Marrakesh in the Kingdom of Morocco.

    On this day, think about how different life would without public service workers in your community. You can also give a shout out to your favorite public servant. Be sure to use #UnitedNationsPublicServiceDay when sharing on social media.


    In 2003, the UN General Assembly designated June 23rd as United Nations Public Service Day. Also in 2003, the UN launched the UN Public Service Awards. The UN chose the date of June 23rd to mark the anniversary of the Convention on Labor Relations. The International Labor Organization had adopted this Convention in 1978.


  • NATIONAL TAKE YOUR DOG TO WORK DAY – Friday After Father’s Day


    Every year employees across the country bring their dogs to work the Friday after Father’s Day. It’s National Take Your Dog to Work Day.


    A celebration of the companionship between canine and human, National Take Your Dog to Work Day hopes to inspire others to adopt from shelters and humane societies. Those in the pet supply business may find this to be an everyday occurrence. With pets being central to their business platform, employees bring their dogs to work frequently. Companies such as Petco, Petsmart, Mars Petcare, Trupanion, and Nestle Purina Petcare all have pet-friendly policies. So, every day is Take Your Dog to Work Day at these companies.

    However, not only pet companies are dog friendly these days. Tech and marketing businesses seem to be next in line for offering this perk to employees. Amazon, Airbnb, Procore Technologies, Vungle, and Radio Systems Corporation are just a few of the companies across the nation supporting pet-friendly policies.

    Are there benefits to having a dog by your side all day? As any business knows, policies like these come with pros and cons.

    Pros of Pet-Friendly Policies
    1. Perhaps the number one benefit of dogs at work is the reduced stress for most employees. Studies have shown pets in the workplace not only reduce stress but also increase productivity.
    2. Which brings us to the second benefit. Employees who take breaks to care for their dog tend to be more productive than those who plow through their work. They come back to their desk refreshed and energized, ready to refocus.
    3. Employees are healthier and so are their dogs because both are getting more physical activity.
    4. The pet also gets more social interaction, not only from the dog owner but from the entire office.
    5. Overall, dogs bring a morale boost to the entire office. Not very many can resist the affection of a loveable pup.
    6. Pet-friendly businesses retain their employees longer and are more attractive to future employees.
    Cons of Pet-Friendly Policies
    1. The job satisfaction of employees with allergies or phobias are greatly affected.
    2. Risk of injury to employees or other dogs increase the legal risk.
    3. Dogs that are not well-trained lead to distractions in the office.
    4. What do potential clients think? If dogs on the premises continually turn away dollars, the pros may not matter.

    While not all businesses can participate in #TakeYourDogToWorkDay, those who can have a terrific opportunity to see if a pet-friendly policy would work. It also provides some insight into your employees’ desire for this type of policy.


    Host an event at your place of business. To find participating employers and to download a toolkit visit Pet Sitters International. Share your pet-friendly workplace experiences by using #TakeYourDogToWorkDay or #TYDTWD on social media.


    The celebration originated in the United Kingdom in 1996. Then in 1999, Pet Sitters International founded its first day in the United States.




    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.


    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.




    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!


    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. 

    June 23rd 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.

    June 23rd 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.



    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.”


    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.