Category: March 14



    Every year on March 14th, people around the world gather together to celebrate the importance of mathematics and everything it’s used for.

    Mathematics is defined as the study of such topics as quantity, structure, space, and change. This definition makes it sound like you have to be a rocket scientist to do math. But whether you realize it or not, you probably use mathematics daily. Do you balance your checkbook? When you have to drive somewhere, do you estimate out how much time it will take to arrive? Do you count calories? Have you ever measured ingredients when you’re cooking? Do you do your own taxes? If you do any of these things, you’re using math!

    Besides personal use, many professions use mathematics. In fact, 94% of all workers use some sort of math in their jobs. About 68% of these people use fractions, decimals, and percentages. Some professions that use math daily include:

    • Construction manager
    • Computer programmer
    • Registered Nurse
    • Landscape Designer
    • Electrician
    • Plumber
    • Diesel mechanic
    • Carpenter
    • Optician
    • Photographer
    • Pharmacy technician

    No matter what profession students in high school and college go into, they are encouraged to study mathematics. Math is often used to solve world-real problems. Math also provides a solid foundation for advanced studies in other fields. It really does seem to be everywhere.

    HOW TO OBSERVE #DayOfMathematics

    Several regional and international organizations take part in this day. These organizations include The Committee for Women in Mathematics of IMU (CWM), the African Mathematical Union (AMU), and the International Science Council (ISC). On this day, schools, museums, libraries, and other organizations participate in math contests and other math-oriented activities.

    To participate:

    • Keep track of how often you use mathematics throughout the day.
    • Study famous mathematicians, including Archimedes, Isaac Newton, James Maxwell, Alan Turing, and Radia Perlman.
    • Help a student with their math homework.
    • Discuss with others how much they use mathematics in their profession.
    • Watch a math movie based on real-life events like Stand and Deliver, Pi, Good Will Hunting, The Imitation Game, and A Beautiful Mind.

    Sharing this day on social media is as easy as 1,2,3. Just use #InternationalDayOfMathematics or #IDM.


    On November 26th, 2019, the United Nations Educational, Scientific, and Cultural Organization (UNESCO) proclaimed March 14th as the International Day of Mathematics. The executive Council of UNESCO chose the date of March 14th because they wanted to expand Pi Day to include the whole spectrum of mathematics. The theme of the inaugural International Day of Mathematics, held in 2020, was “Mathematics Is Everywhere.” The International Mathematical Union (IMU) coordinates the day.




    Everyone has a story and on March 14th, National Write Your Story Day challenges you to tell your story in written form.

    You may think to yourself, “There’s nothing in my life to tell.” It will surprise you once you put pen to paper, or fingers to keyboard and the words start filling the pages. Words have a way of triggering memories. They form a moment in time, and before you know it, there’s a story flowing from your fingertips. Even if you never share your tale, it can be an essence of who you are and where you’ve been.

    Trips down memory lane or recreating the moment when a spark of inspiration occurred, are more intriguing than you know. Today, they fill blogs, inspire novels and entire television series. More importantly, they are treasures to family and loved ones.

    The observance encourages us to start telling our personal stories today. There’s a story worth recounting in there somewhere!

    HOW TO OBSERVE #WriteYourStoryDay

    • Commit to writing your story.
    • Grab pen and paper or your favorite electronic device and begin typing away.
    • Share your story with others.
    • Encourage others to share write their story.
    • We all have a story to tell. Use #WriteYourStoryDay to share on social media.


    Mitzy founded National Write Your Story Day in September of 2017. Mitzy is an Author, Artist, Guide, and founder of Mitzy TV, which pushes to inspire authors and artists to become better individuals. This business also works to provide direction and encouragement to others so that they can push their work out into the world where it can best serve others.

    Contact information:

    The Registrar at National Day Calendar proclaimed the day to be observed annually beginning March 14, 2018.

    Write Your Story FAQ

    Q. What’s the difference between an autobiography and a memoir?
    A. An autobiography encompasses an entire lifetime while a memoir typically tells the story of a specific event or subject from any point in the person’s life. Additionally, autobiographies are typically about a notable person.

    Q. Can anyone celebrate this day?
    A. Yes. Everyone has a story to tell, so it’s a perfect time to start writing yours.

    Q. What other writing days are on the calendar?
    A. Yes, there are! Check these out:



    NATIONAL CHILDREN’S CRAFT DAY                 

    Each year, National Children’s Craft Day on March 14th unleashes a boost of creative energy right in the middle of National Craft Month. The day celebrates crafting with children. By opening children’s eyes to the world of crafts, we spark their imagination, and from there, the possibilities are endless.

    Crafting can give children a sense of accomplishment as well as help build their self-esteem. As with adults, crafting reduces stress in children, too. 

    Craft stores hold special classes throughout March. These classes offer a variety of opportunities for children to get involved. They also provide an opportunity for children to interact with others, learn something new, and have fun without electronics or television. When stimulating a child’s creativity, we encourage their curiosity and use of tactile skills as well. Some of the other benefits of crafting includes:

    • following directions
    • improving reading comprehension
    • learning independence
    • overcoming mistakes
    • feeling included
    • mastering social skills

    It doesn’t cost a lot to get a child involved with crafts. Use everyday household items for projects. Don’t be afraid to use recycled items such as paper towel tubes and yogurt containers. These items make excellent craft items and demonstrate repurposing. 

    HOW TO OBSERVE #ChildrensCraftDay

    • The ideas are unlimited for this holiday! Let the creative juices flow. Children will inspire you, but the internet provides endless resources, too.
    • Look for simple projects online or even in the National Day Calendar Classroom. We offer a wide variety of projects for all ages.
    • Scour second-hand shops for glitter and other items for your craft supplies. As you celebrate, take up a collection of supplies to donate to classrooms.
    • Or try these ideas we found to start crafting at home, too!
      • Use recycled materials to start your craft supplies. Paper tubes, plastic bottles, cardboard boxes, egg cartons, old t-shirts, and many more items make excellent project starters.
      • Make crafts with a purpose. A birdfeeder, picture frame, or magnet for the fridge gives their creation additional meaning. Not only did they make it, but they also get to use it as they enjoy it.
      • Craft a game. While they exercise their creative skills, your children can also build on their strategic skills. Playing a game they create will develop those skills even more.
      • As your children grow, don’t hesitate to utilize power tools. That includes sewing machines, staplers, sanders, and drills. Each of these will help your students with their patience and S.T.E.M skills.
    • Share your projects using #ChildrensCraftDay on social media.


    National Day Calendar continues researching the origin of this creative holiday. However, we might have gotten glue stuck to our fingers impeding our search.

    Children’s Crafts FAQ

    Q. Are crafting projects expensive?
    A. No. Many children’s craft projects can be completed using household items. 

    Q. Are children’s crafts messy?
    A. They can be, but the memories, lessons, and skills they gain from crafting are worth it! Organization and planning can help keep the mess to a minimum. Oh. And avoid glitter. Glitter is ALWAYS messy. 




    On March 14th, National Learn About Butterflies Day encourages us to look for a blur of color as butterflies begin migrating across the country. Each year the celebration brings with it an awareness of the varieties of butterflies and their importance to our survival. Spring and summer are just right around the corner, so it is an excellent time to take a few minutes and learn something new about butterflies and appreciate their beauty.

    Like bees, bats and other pollinators, butterflies make the difference between valuable fruits and vegetables on our tables. While we’re planting native flowers and trees, we’re also providing for our future. Pollinators such as the monarch butterfly and the honey bee have been in decline. All the reasons have not been identified. However, increasing the available habitat does help! 

    Butterflies need our help to survive as they rely on flowers and other natural sources for survival.  We can help them by planting more flowers.

    • There are more than 20,000 types of butterflies worldwide.
    • Their wingspans can range from 1/2 inch to 11 inches.
    • Butterflies in their adult stage can live from a week to nearly a year, depending on the species.
    • Many butterflies migrate over long distances. Particularly famous migrations are those of the Monarch butterfly from Mexico to the northern USA and southern Canada, a distance of about 2500 to 3000 miles.

    HOW TO OBSERVE #LearnAboutButterfliesDay

    • Read up on butterflies or find a good sunny spot to watch some.
    • Plant a wildflower garden to provide a habitat for them. You won’t regret it. You’ll have butterflies to enjoy all summer long! To learn more about pollinator gardens visit Million Garden Challenge.
    • Spend the day learning more about butterflies and creating an environment that is friendly to them.
    • Watch a documentary about butterflies like Wings of Life directed by Louis Schwartzberg and narrated by Meryl Streep. 
    • Plant a variety of native flowers and plants. 
    • Provide a water source. The butterflies will drink from the damp soil and leaves when you water your plants, too. 
    • In the spring, don’t clean up dead leaves and brush too early. Wait until the temperature is consistently above 50°F. This will allow time for the species that overwinter in a chrysalis to emerge safely and without the threat of frost.
    • Use #LearnAboutButterfliesDay to post on social media.


    National Day Calendar continues to research the origins of this nature-loving holiday.

    Butterflies FAQ

    Q. What do butterflies eat?
    A. They drink the sugary sweet nectar from flowering plants. However, their larva (aka caterpillars) eat the leaves of plants. The monarch butterfly larva, for example, eats milkweed exclusively.

    Q. How long do butterflies live?
    A. The lifespan of a butterfly varies by species. Some butterflies live only a day while others may live several months.

    Q. Are butterflies and moths related?
    A. Yes. Butterflies and moths are a part of the Lepidoptera order.

  • NATIONAL PI DAY – March 14

    NATIONAL PI DAY – March 14

    NATIONAL PI DAY           

    National Pi Day on March 14th recognizes the mathematical constant π. Also known as pi, the first three and most recognized digits are 3.14. The day is celebrated by pi enthusiasts and pie lovers alike!

    Pi is the ratio between the circumference of a circle and its diameter. While the idea of pi has been known for nearly 4000 years, accurately calculating it has been something of slightly more recent mathematical development. By 2000 BC, the Egyptians and Babylonians accurately used the constant to build. Mathematicians such as Archimedes, Fibonacci, François Viète, Adriaan van Roomen, and Gottfried Wilhelm Leibniz all calculated pi by various methods. However, in 1706, Welsh mathematician William Jones introduced the Greek letter π to represent the ratio of a circle’s circumference; pi. 

    HOW TO OBSERVE #NationalPiDay

    • Celebrate the day with a slice of a pie cut using the mathematical constant of pi.
    • Host a pie-eating contest.
    • Discuss the significance of the number π.
    • Watch the Life of Pi.
    • Look for 3.14 in unexpected places. For example, prices, street numbers, or license plates. 
    • Finding 3.14 deals in as many versions of π as possible.  For example
      • Think pizza Pi as much as dessert kind of deals on this day!
      • Get punny Geeky Greek Pi-inspired t-shirts deals.
      • Visit the National Day Calendar Classroom for a National Pi Day lesson.
    • Use #NationalPiDay to post on social media.


    In 1988, Larry Shaw organized the earliest known official or large-scale celebration of Pi Day at the San Francisco Exploratorium. The Exploratorium continues to hold Pi Day celebrations.

    On March 12, 2009, the U.S. House of Representatives passed a non-binding resolution (HRES 224) recognizing March 14, 2009, as National Pi Day.

    PI FAQ

    Q. Who holds the record for memorizing the most digits of pi?
    A. In 2015, Rajveer Meena memorized 70,0000 decimal places of Pi as certified by Guinness World Records.

    Q. Why do people eat pie on Pi Day?
    A. People eat pie on Pi Day because the two words are homophones and hearing that it’s Pi Day makes people think of pie. Also, since pies are usually round, they’re an ideal way to celebrate Pi Day.


    March 14th Celebrated (and Not So Celebrated) History


    The United States Patent Office issues patent no. 621,195 to Count Ferdinand von Zeppelin for his invention of a “Navigable Balloon” which was also known as the Zeppelin.


    President Theodore Roosevelt signs an executive order creating the first national wildlife refuge at Pelican Island, Florida. During his presidency he would establish a total of 55 national wildlife refuges, preserving habitats and a network of ecosystems.


    Following the passage of the 16th Amendment, President Warren G. Harding becomes the first U.S. president to pay income tax. When a bill was introduced by the house in 1921 that would exempt the vice president and president from paying income tax, the President-elect expressed disapproval of the measure.


    The American Society of Civil Engineers elects Elsie Eaves as an associate member. She is the first woman elected to the society.


    The FBI publishes its 10 Most Wanted Fugitives for the first time. At the top of the list was Thomas James Holden. He was arrested 18 months later. Number three on the list was William Raymond Nesbit. Police arrested him three days later in St. Paul, Minnesota. Of the ten, all but one were captured within two years. The remaining case was dismissed eight years after the list was published.

    March 14th Celebrated (and Not So Celebrated) Birthdays

    Lucy Beaman Hobbs Taylor – 1833

    The American school teacher became the first woman to earn her Doctor of Dental Surgery degree. In 1866, she graduated from the Ohio College of Dental Surgery.

    Albert Einstein – 1879

    In 1921, the German-born physicist won the Nobel Prize for Physics. He developed the general theory of relativity and had a profound impact on 20th-century physics and scientific theory.

    Sylvia Beach – 1887

    The American bookseller and publisher is best-known for opening Shakespeare and Company in Paris in 1919. The bookseller attracted some of the 20th century’s most influential and respected writers including Ernest Hemingway, James Joyce, Gertrude Stein, Ezra Pound, and Janet Flanner. In her memoir using the name of her business as the title, she wrote about her experiences in Paris, including those of the authors.

    Hank Ketcham – 1920

    On March 12, 1950, the American cartoonist published the first syndicated Denis the Menace comic strip.

    Quincy Jones – 1933

    One of music’s most esteemed legends, Quincy Jones began making music at a young age. By the 1960s he was earning Grammy nominations and in 1963 he won his first Grammy for Best Instrumental Arrangement for his jazz song “I Can’t Stop Loving You.” Only the British-Hungarian composer Georg Solti has more Grammys than Jones phenomenal 28.

    Billy Crystal – 1948

    The actor and comedian has been making us laugh for more than 40 years in movies like The Princess Bride, Monsters Inc., and Analyze This.

    Simone Biles – 1997

    In her first Olympics at Rio in 2016, Biles brought home four gold medals and one bronze. However, she was already a World Champion before she arrived in Rio. Since then, Biles has tallied up a combined total of 30 medals making her the most awarded gymnast in the United States and the third in the world.

    Notable Mentions

    Marguerite de Angeli – 1889
    John Luther Casey Jones – 1864
    Diane Arbus – 1923
    Michael Caine – 1933
    Frank Borman – 1928
    Eugene Cernan – 1931




    National Potato Chip Day on March 14th celebrates America’s #1 snack food. Millions will enjoy their favorite chip this holiday. It’s a good thing there are so many to choose from, too!

    Saratoga Chips

    On August 24, 1853, an unhappy restaurant customer kept sending his potatoes back to the kitchen, complaining they were thick and soggy. Chef George Crum decided to slice the potatoes as thin as possible, frying them until crisp and adding extra salt. To the chef’s surprise, the customer loved them. The crispy potatoes soon became a regular item on the restaurant’s menu under the name of “Saratoga Chips.”

    Other explanations point for the existence of the potato chip point to recipes in Shilling Cookery for the People by Alexis Soyer (1845) or Mary Randolph’s The Virginia House-Wife (1824). While many references between these dates sliced potatoes and fried them in grease, uncertainty remains whether the potatoes were fried to a crisp.

    However, by the late 1870s, menus across the country used the term “Saratoga Chips” on train cars, hotel restaurants, and street carts. The name carried into grocers when bakeries made the chips in larger batches. They shipped them by wagon to the restaurants and grocers by the barrel. The grocers sold them to private families by the pound. Folks were instructed to bake the chips in a hot oven for a few minutes, and the chips would be as crisp as if fried that same day.

    Classic Potato Chips

    The Dayton, Ohio-based Mike-sell’s Potato Chip Company, founded in 1910, calls itself the “oldest potato chip company in the United States.”  New England-based Tri-Sum Potato Chips, originally established in 1908 as the Leominster Potato Chip Company, in Leominster, Massachusetts, claims to be America’s first potato chip manufacturer.

    In the 20th century, potato chips spread beyond chef-cooked restaurant fare and began to be mass-produced for home consumption. Flavored chips were introduced in the 1950s. Potato Chip revenues are over $15 billion a year worldwide!

    HOW TO OBSERVE #NationalPotatoChipDay

    • Eat some potato chips.
    • Use potato chips in a recipe. Crushed, they make a delicious coating for fish.
    • Dip chips in chocolate for a salty-sweet snack.
    • Share your recipes.
    • Make some homemade dips.
    • Or just grab a bag of potato chips to enjoy and use #NationalPotatoChipDay to post on social media.


    National Day Calendar continues to research the origins of this snack-food holiday. 

    Potato Chip FAQ

    Q. What kinds of dips go well with potato chips?
    A. Many kinds of dips make chips even tastier. Try sour cream and onion, salsa, ranch, queso, chili cheese, spinach dip or make one up!

    Q. Are chips good for picnics?
    A. Yes. Chips are a perfect side dish for a picnic. They’re portable and don’t need to be chilled or heated.

    Q. Do potato chips come in different flavors?
    A. Yes. Potato chips are made with various flavors including BBQ, cheese, sour cream and onion, sea salt and vinegar, Chesapeake Bay seasoning, and many more.  Potato chip makers also make unusually flavored chips.