Category: April 28



    Historic markers all across the nation provide a glimpse into the past and preserve history for future generations. On the last Friday in April each year, National Historic Marker Day invites volunteers and communities to come together to maintain their markers. Unfortunately, weather and time take their toll on these small monuments to history. By working together, we not only ensure these markers tell the stories to future generations, but we also take the opportunity to celebrate the history and culture they preserve.


    Historic markers pop up all over the country. In fact, according to the Historical Marker Database, more than 157,000 historic markers preserve history across the United States. Look closely, and you will see them near significant natural formations, state and national trails, historic buildings and communities, and even cemeteries. They tell stories of cultural, national, and historical significance. They also remind us of the people who lived, worked, contributed, played, created, and survived in communities all across the country.

    Many historic markers are neglected and in need of upkeep. National Historic Marker Day invites individuals and communities to come together to restore and preserve these glimpses into our culture and history.


    • Register your local or regional National Historic Marker Day event on the William G. Pomeroy Foundation website:
    • Volunteer to clean and preserve historic markers in your community.
    • Share your event with others to showcase your progress and community spirit.
    • Lead a fun educational activity to encourage student engagement with history.
    • Join the conversation by using #NationalHistoricMarkerDay on social media.
    • Follow the Pomeroy Foundation on Facebook, Twitter and Instagram to see photos from volunteers across the country.


    National Historic Marker Day LogoThe William G. Pomeroy Foundation established National Historic Marker Day in 2021 to highlight the value historic markers bring to the entire country and encourage volunteers to help preserve them. More than three dozen volunteers across multiple states participated in the inaugural event. Volunteers were encouraged to take photos of their cleaning efforts and post them on social media. As the celebration’s creator and official host, the Pomeroy Foundation curated a photo gallery and shared it on social media.

    In 2022, the Registrar at National Day Calendar proclaimed National Historic Marker Day to be observed annually on the last day in April.



    Have you ever been rescued from a risky situation or saved from injury or death? Those who come to our aid are called heroes. Some heroes happen to be in the right place at the right time. Others choose to be a hero as a career (though they wouldn’t call themselves heroes.) Other still are fictional creations that inspire us with hope. Each year on April 28th, National Superhero Day honors superheroes, both real and fictional.


    Batman, Superman, Captain America, Wonder Woman, Iron Man, Hulk, and Spiderman are just some of the superheroes whose names we recognize. Even though they are fictional, these superheroes provide role models for our children. They serve and protect while fighting evil.

    Heroes are ordinary people who make themselves extraordinary. ~ Gerard Way

    Our real-life superheroes may not have superpowers or wear capes. However, just like fictional superheroes, children also look up to them as role models. They serve and protect their communities. These real-life superheroes also dedicate their lives to helping others, saving lives, or being a mentor. Military personnel, police officers, firefighters, and teachers are just a few of the heroes who protect us on a daily basis. 


    • Take your favorite superhero to lunch and say thank you for all they do. Let them know that you appreciate them. 
    • Share what you think makes a hero.
    • Take a picture with your favorite hero and post it on social media.
    • Draw your version of a superhero.
    • If you could have one superpower, what would it be?
    • Share your stories and experiences using #NationalSuperheroDay.
    • Educators and families, check out the National Day Classroom for projects to #CelebrateEveryDay!


    In 1995, Marvel Comics‘ employees created National Superhero Day. 

    Superhero FAQ

    Q. Who was the first superhero?
    A. Lee Falk created the first superhero The Phantom which debuted in 1936.

    Q. Do all superheroes have special powers?
    A. No. Some superheroes like Bat Man use specialized gear to help them with their crime-fighting ways.

    April 28th Celebrated History


    The official end of Allied occupation in Japan took place according to the Treaty of San Francisco, or the Treaty of Peace with Japan signed seven months prior. Signed by 49 countries, including the United States and Japan, the treaty restored full sovereignty to Japan on this date. While Nationalist China signed the treaty, neither Red China nor Russia did. Both were still considered at war with the island country.


    Helicopter pilot Jean Ross Howard Phelan founded the Whirly-Girls organization along with 13 international charter members. While training at Bell Helicopter School in Fort Worth, Texas, Lawrence Bell nicknamed Ross Howard Phelan a “whirly-girl” inspiring her to use the name for the organization. In the organization’s more than six decades, it has promoted the advancement of women helicopter pilots, charitable aviation, mentoring, scholarship and camaraderie.


    Agriculture Secretary Edward Madigan revealed the USDA’s Food Guide Pyramid. The new guide illustrated the food groups in a hierarchy of recommended servings. It replaced the previous design called the “Food Wheel.”


    For the budget-friendly price tag of $20 million, American businessman Dennis Tito hitched a ride aboard a Russian supply mission to the International Space Station. His six-day round trip is considered the first of a space tourist.

    April 28th Celebrated Birthdays

    James Monroe – 1758

    During the fifth president’s administration, the young country began facing the moral dilemma of slavery for the first time. The Missouri Compromise allowed Missouri to enter the union as a slave state and Maine as a free state. It also restricted slavery north and west of Missouri, setting the stage for future division. Monroe was also the last of the Founding Fathers to be elected to the presidency.

    Erich Salomon – 1914

    The German photographer was known for capturing photos of notable figures and events. He is considered one of the founding fathers of modern photojournalism.

    Harper Lee – 1926

    Best known for her Pulitzer Prize-winning novel To Kill a Mockingbird (1960), Harper Lee later accepted a post at the National Council of the Arts. While Mockingbird brought celebrity and wealth to Lee, she didn’t publish another novel until 2015. Originally written in 1957, Go Set a Watchman follows up on the main characters in Mockingbird.

    Jay Leno – 1950

    In 1992, the American comedian became the host of NBC’s The Tonight Show. He hosted the show for 17 years. Also a known car geek, he also hosts the television show Jay Leno’s Garage.



    Each year on April 28, we celebrate National BraveHearts Day to honor the bravery of families dealing with pediatric cancer. During this time, pay tribute and support the families and friends of those involved in the child’s life. 

    #NationalBraveHeartsDay #SpotlightHope

    Navigating through cancer is hard and often scary. Families who have children with cancer need a good support system, but don’t know where to turn. However, there is hope for families struggling with pediatric cancer through a cell phone app called Spotlight Hope. This free app provides information on local resources, financial help, and transportation. In addition, Spotlight Hope provides a connection to other families who are also experiencing a similar situation. Most importantly, Spotlight Hope is designed to help navigate pediatric cancer by finding people who they can rely on for help.


    There are many ways you can participate in celebrating today’s observance. You can:

    • Spread the word about Spotlight Hope;
    • Use #SpotlightHope and #NationalBraveHeartsDay to post on social media;
    • Suggest the Spotlight Hope App to a family you know is dealing with Pediatric Cancer;
    • Donate to this BraveHearts for Kids to allow them to continue their work.


    Jeremy and Amy Jacobs founded BraveHearts For Kids in 2008 in honor of their daughter Ava. At 13 months old, Ava and her parents received a diagnosis a Medulloblastoma brain tumor. Luckily, Ava won her battle with cancer. The couple knew Ava’s life was a gift and had a burning desire to help other families in similar situations.

    In 2015, the BraveHearts for Kids organization founded National BraveHearts for Kids Day. The Registrar at National Day Calendar proclaimed the day to be observed on April 28th, annually.

    Today, BraveHearts for Kids helps not only saves the lives of children, it provides information, hope, guidance, and resources to families dealing with a childhood cancer crisis. The organization offers their services at no cost. Additionally, 100% of individual contributions go to supporting the programs available to anyone. This includes emergency fundraising, plus 1-on-1 mentoring. Families are matched a mentor who is experiencing a similar diagnosis and crisis with a child of their own.

    Bravehearts for Kids is now the nation’s leading Pediatric Cancer Organization connecting families with resources to help them through the nightmare of pediatric cancer. By providing hope, inspiration, guidance, and a connection to resources, they help save children’s lives and support families dealing with Pediatric Cancer.

    If pediatric cancer is impacting your life in some way, download Spotlight Hope in the Google Play or Apple Store. Start connecting with wonderful community to help make your journey more bearable.

    BraveHearts FAQ

    Q. How many children receive a diagnosis with pediatric cancer each year?
    A. In the U.S., more than 17,000 children each year receive a diagnosis with a form of pediatric cancer.

    Q. What is the most common type of pediatric cancer?
    A. There are many types of childhood cancers, but the most common is leukemia.




    Each year on April 28th, Workers’ Memorial Day encourages national and international remembrance and action for workers killed, disabled, injured, or made unwell by their work. Also known as International Workers’ Memorial Day or International Commemoration Day (ICD) for Dead and Injured or Day of Mourning, the slogan for the day is Remember the dead – Fight for the living.


    The day remembers workers killed in incidents at work or by diseases caused by work. Organizations around the world host events honoring workers lost work-related injuries or illnesses.  Some organizations may hold campaigns and workplace awareness events. Other activities such as multi-faith religious services, laying wreaths, planting trees, and unveiling monuments, raise public awareness of issues. One of the most moving is the setting out of shoes to symbolize those who have died at work.

    Transporation causes more work-place deaths than any other occupation. The next four most common reasons for workplace deaths are workplace violence (human and animal), slips and falls, contact with equipment and objects, and exposure to harmful substances and environments. However, these four cause more workplace deaths combined than transportation alone. The topmost dangerous occupations are agriculture, forestry, fishing, and hunting.

    This day also highlights the preventable nature of most workplace accidents and ill-health. Additionally, it promotes the fight for improvements in workplace safety.


    • Remember employees and coworkers killed due to work-related injury or disease.
    • Attend ceremonies or events raising awareness.
    • Encourage your organization to support workforce safety.
    • Use #WorkersMemorialDay to post on social media.


    OSHA was founded on April 28, 1971. Canadian Union of Public Employees first observed Workers’ Memorial Day in 1984 followed by the United States in 1989. The House introduced Joint Resolution 235 to recognize the observance. Across the country, unions and organizations also recognized the day. For years, events have been organized in Canada and the USA and then worldwide.




    Cat lovers have all been there. That onerous sound their cat makes when a hairball is on the rise. On the last Friday in April, National Hairball Awareness Day draws attention to a problem many cat lovers face.


    The formation of hairballs is a common feline condition that is brought on by self-grooming and the associated ingestion of hair. Cats pass the hair through their digestive tract or will vomit the hairball. If they don’t eliminate the hairball from their digestive track one way or the other, hairballs can create an obstruction. Obstructions can cause serious medical issues for a cat. 

    Tips for Managing Hairballs

    • Regular grooming helps reduce the amount of hair your cat ingests. Bushing your cat every day also has the added benefits of reducing the amount of shed hair around the house and offers your cat some extra attention.
    • Look for products that help to prevent hairballs. Shampoos and wipes may reduce the amount of shedding.
    • Some types of cat food may help to reduce the amount of shedding too. Designed to improve the health of a cat’s coat, the foods are nutritionally packed. 


    • Get in the habit of grooming your cat to help prevent hairballs.
    • Talk to your vet if your cat continues to have issues with hairballs.
    • Share your hairball stories. We know you have them.
    • Love your kitty as part of Hairball Awareness Day.
    • Join the conversation by using #HairballAwarenessDay on social media.


    Dr. Blake Hawley of Hill’s Pet Nutrition out of Topeka, Kansas founded National Hairball Awareness Day to provide solutions to cat owners and help them understand why their cats get hairballs. 

    Hairball FAQ

    Q. Are hairballs normal?
    A. No. Cats are natural groomers. When they groom, they swallow the hair and it normally passes through their digestive tracts. Hairballs are formed when the hair collects in their digestive tracts that they can’t pass it in their stool. It creates an obstruction that exits the same way it entered.

    Q. Do hairballs have to be removed surgically?
    A. In extreme cases, a hairball causes an obstruction your cat can’t expel. Veterinarians will recommend the least invasive treatments first. They may include hydration and laxatives. When these treatments do not work, your veterinarian may recommend surgery.




    National Blueberry Pie Day on April 28th each year ushers in blueberry pie-making season. Blueberry harvest begins in April and lasts until September giving us a long season full of blueberry enjoyment.


    We’ve been enjoying blueberries in pies since early American settlers arrived. In 1872, the first documented recipe for blueberry pie appeared in the Appledore Cook Book. Blueberries are abundant in Maine, so it’s no surprise that blueberry pie is the state’s official dessert!

    This once wild berry became domesticated during the early 1900s thanks to the observations of Elizabeth Coleman White and the research of Dr. Frederick V. Coville. Before their efforts, wild blueberries were never successfully transplanted and raised in any farming operation for personal or commercial production. The only way to enjoy fresh blueberries was to seek them out where they grew naturally.

    Through the efforts of White and Coville, today, producers and private gardeners bring to fruition these amazingly delicious berries. These vibrant berries pack a punch in vitamins and health benefits from farm to table or farmer to the grocer to you. They make a great snack all on their own or enhance a meal, and make stellar desserts or sauces. Whatever this berry does, it does with panache!

    It’s one of the healthiest fruits on the market, too. Full of antioxidants, this nutrient berry helps inhibit cancer development and helps prevent urinary tract disease. Eating blueberries may assist in maintaining healthy blood pressure, reduce blood sugar, and ease symptoms of depression. 


    • Bake up a blueberry pie.
    • While you’re at it, bake two and give one away. We even have a recipe for you to try.
    • You can also visit your local baker and ask them for their best blueberry pie. Let us know where you’re shopping that day, too!
    • Use #BlueberryPieDay to post on social media.


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

    Blueberry Pie FAQ

    Q. Should I use fresh or frozen blueberries to make blueberry pie?
    A. Either fresh or frozen will make a delicious blueberry pie.

    Q. Are pies and tarts the same thing?
    A. Pies and tarts are similar. They are both made with a pastry crust composed of sweet or savory fillings. However, a pie is usually made in a dish with sloped sides while a tart pan has straight sides and a removable bottom. Pies can be made with or without a top crust; tarts only have a bottom crust.




    At the tail end of National Poetry Month, April 28th marks the observance of National Great Poetry Reading Day. This day celebrates distinguished poetry and the notable poets who wrote them.


    As an art form, poetry may predate literacy. Epic poetry appears to have been composed in poetic form to aid memorization and oral transmission in prehistoric and ancient societies. It is directly from folk songs that other types of poetry developed.

    When is National Poem In Your Pocket Day?

    With so many forms of poetry to choose from, no one is limited. For example, choose from the sonnet, shi, villanelle, tanka, haiku, ode, and ghazal. There are also different genres of poetry including narrative, epic, dramatic, satirical, lyric, elegy, verse fable, prose, and speculative poetry.

    Some of the well-known, great poets include William Shakespeare, Edgar Allan Poe, Henry Wadsworth Longfellow, Robert Frost, Mark Twain, Emily Dickinson, Maya Angelou, and T.S. Eliot


    • Who is your favorite great poet? Share a verse or two with others.
    • Introduce the great poets to someone you know.
    • Settle back, relax, and read your favorite poetry.
    • Complete the Poetry Month word search to discover more about poetry.
    • Explore the poems of William Blake or John Keats. If you’re unfamiliar with Maya Angelou, discover her poetry now. Perhaps a few lines of E.E. Cummings or Elizabeth Barrett Browning will complete the day. Who are we missing? Silvia Plath? Oscar Wilde? William Carlos Williams? You tell us. 
    • Host a small poetry reading in your living room. Pick your favorite poems and read them aloud.
    • Attend a poetry slam.
    • Explore the poetry section at the library. 
    • Share your poetry with others or start a poetry group.
    • Discover local poets and grow your library.
    • Use #GreatPoetryReadingDay to post on social media.


    National Day Calendar continues to research the origins of this poetry holiday. However, we have found it has been celebrated since at least 1994.

    Poetry FAQ

    Q. Does poetry have to rhyme?
    A. No. Many poetry styles do not have a rhyming scheme.

    Q. Is a song a poem?
    A. A song may be a poem that has been set to music.


  • NATIONAL ARBOR DAY – Last Friday in April


    Trees afford us many pleasures. In the spring, their buds let us know warmer weather is on the way. Their summer leaves provide ample shade on a hot day. Have you ever joyfully jumped into a pile of crisp colorful leaves in the fall? And in the winter, tree branches offer shelter to wildlife for our viewing pleasure. Each year in April, National Arbor Day encourages us to celebrate and plant trees. The observance takes place each year on the last Friday in April.  


    Trees are more than signals of the changing season. They provide vital protection for the Earth’s topsoil from erosion, oxygen, and homes for wildlife. Trees also are a renewable resource that provides a variety of materials for building, fuel, and office supplies. When we plant trees in our yard, we improve our enjoyment of our outdoor living spaces and our overall quality of life. 

    National Arbor Day celebrates all these things and aims for American generations to enjoy all the benefits trees have to offer.


    • Celebrate the day by planting a tree today.
    • Join a tree-planting event near you or organize one in your community.
    • Consider the trees you plant, too. While you may look for fast-growing trees so that you may enjoy the tree during your lifetime, planting a slower-growing tree is an investment in the future. Generations to come will enjoy the shade and beauty of the tree long after we’re gone. And leaving something as precious as a tree behind is quite an investment.
    • Download and print the color page for the day. Share them with us when complete!
    • Share your celebration experiences using #NationalArborDay on Social Media.


    On April 10, 1872, journalist and newspaper editor J.Sterling Morton established Arbor Day in the state of Nebraska with hopes that it would spread across the country. This first celebration challenged the people of Nebraska to plant as many trees as they possibly could. Since the pioneers missed the trees and forests of the east, they answer the challenge by planting more than 1 million trees that very first year. 

    To learn more about the history of National Arbor Day, visit the website at

    Arbor Day FAQ

    Q. What’s the difference between deciduous trees and coniferous trees?
    A. The trees with broad leaves that change color with the seasons are deciduous trees. Coniferous trees have needs, not leaves and stay green all year long.

    Q. Should I plant a fruit tree or a shade tree?
    A. Choosing the right tree for your space is important. Will you benefit from the shade? Will you enjoy the fruit or the wildlife that eats it? Cost and hardiness also are a factor. Visit for a guide to choosing the right tree for you.