Where the World Gathers to Celebrate Every Day




Each year on April 3rd, National Find A Rainbow Day challenges us to look to the sky and find a colorful ray of hope cast across it. 

There are people that see rainbows as an artistic masterpiece in the sky, to others it is a sign of hope and to many a sign of promise.
It can be all three; beauty, hope and promise.    (Jill Magnus) 

A spectrum of light in the form of a multicolored arc, appearing in the sky, is caused by both reflection and refraction of light in water droplets in the Earth’s atmosphere. These rainbows always appear directly opposite of the sun.  The light is refracted (bent) when it enters a droplet of water, then is reflected inside on the back of the droplet and refracted again when leaving it.

Red is the color that is visible on the outer part of a rainbow and violet on the inside of a primary rainbow. Children learn in science class the mnemonic ROYGBIV to help them to remember the sequence of colors in a rainbow: red, orange, yellow, green, blue, indigo, violet. Many forms of airborne water can cause rainbows including, rain, mist, spray, and dew.  


Find yourself a rainbow or use the garden hose or a prism to make one yourself.

Families, students, and classrooms, create a rainbow from the colorful hearts on this printable. There’s at least one for every color in the rainbow. Take out your color crayons and finish what we’ve started. Then cut them out and put them in a cheerful, sunny window to brighten the day of someone passing by. 

Use #NationalFindARainbowDay to post on social media.


National Day Calendar continues to research the origins of this bright and colorful holiday.

National Film Score Day Art


On April 3, National Film Score Day recognizes the musical masterpieces called “Film Scores” and, more specifically, the very talented composers who create them.

As the opening scenes of a long-anticipated movie begin flickering across the screen, a rising cadence undulates through the theater setting the mood. A musical note plays, then two. Soon the theater fills with a beautifully layered orchestral music masterwork. This musical accompaniment to the film you’re watching is called the “Film Score.”

Imagine your favorite film without a few well-placed notes enhancing the emotion of a dramatic on-screen exchange. Or a chase scene without rousing orchestral music elevating the intensity. Would Star WarsJawsThe Lord of the Rings films, or the Harry Potter films be the same without their complementary musical scores? Without the film score, would we cower so easily in fear from our seats. Would our imaginations so eagerly suspend from reality? Music heightens emotions. It also sharpens our senses and focuses our attention. Without a doubt, the film score is the fiery soul of a film.

Throughout film history, we quickly recognize our favorite movies merely by a few notes of a film’s orchestral soundtrack. Perennial classics and modern-day blockbusters call to us when we hear the Film Scores we love most. Despite years or decades, those chords often ignite a rush of fond memories. And with each new film released, a talented composer creates another magnificent work of musical art. Each one eliciting a new set of lasting movie memories.

HOW TO OBSERVE #NationalFilmScoreDay

Decades of accomplished composers from Miklós Rózsa, Shirley Walker, Bernard Herrmann, and Leonard Bernstein to John Williams, Jerry Goldsmith, Rachel Portman, and Michael Giacchino – hundreds more too numerous to name – have created lifetimes of masterworks.
Share with us your most memorable film score moments. Is it John Williams’ sweeping film scores for Star Wars and Harry Potter? Jerry Goldsmith’s music for Rudy, Alien, Hoosiers, or Star Trek? James Horner’s score for Titanic or Field of Dreams?
Use #NationalFilmScoreDay to share your fond movie music memories on social media.


Jeffrey D. Kern from Movie Scores and More Radio founded National Film Score Day to celebrate and highlight the tireless achievements of the talented composers. The day also honors their treasured musical masterworks that bring so much joy to moviegoers around the globe! 

Why April 3rd?

On April 3, 1942, Alexander Korda’s film The Jungle Book was released.  The legendary composer, Miklós Rózsa, created the orchestral score. The following year, a recording made directly from the soundtrack was published in its entirety on 78-RPM record album with narration by Sabu, the film’s star. The Jungle Book soundtrack became the first commercial recording of a non-musical U.S. film’s orchestral score to ever be released. The album was a success.

On April 3rd, National Film Score Day commemorates the release date of the first commercial recording of a non-musical U.S. film’s orchestral score – The Jungle Book originally premiered in 1942!
The Registrar at National Day Calendar®proclaimed National Film Score Day to be observed annually beginning in 2018!



World Party Day on April 3rd encourages a coordinated effort of joyful human celebration around the globe. 

The world gathers to celebrate for many reasons. Forming a party often includes food, beverages, music, games, and other festivities. Hosts often create a theme or the theme generates the party. Several common modern-day party themes include bachelor and bachelorette, birthday, retirement, anniversary, graduation and welcome home. Many other party themes focus on specific foods. 

In our modern world, parties can also be virtual. We don’t always have to gather in the same location to celebrate a specific event or day. Technology brings us together through video and the internet allowing us to connect long-distance and celebrate all our favorite ways. 

The novel Flight: A Quantum Fiction Novel, by Vanna Bonta published in 1995, which concludes with a synchronized worldwide celebration that occurs on April 3, 2000, is the inspiration for World Party Day. Gatherings can be small or large organized festivals.


Where ever you are, celebrate with friends and family. Pick a theme that best fits the day. We’ve created a list of fun ideas to invite friends to join you virtually. Go online and create a video chat or an event on social media to share your party. 

  • Make your own pizza party – Everyone makes their own creative pizza. Share the recipe with other party participants.
  • Movie night party – Pick a movie that all your party invitees will be watching. Pop popcorn and grab your drinks. Everyone starts the movie at the same time and let the comments fill the online event page. 
  • Trivia party night – Play online trivia in a video chat with friends and family. 
  • Dance party – Challenge friends to record their best dance moves and share them with each other.
  • Game party – Hook up the gaming systems and invite friends and family to join you in the virtual world of games. 
  • Art party – Do it Bob Ross style and invite a local artist to demonstrate techniques for a group of your friends all through the power of the internet. Many artists, like our Ambassador Joe Wos of Mazetoons, are offering tutorials and more online. Schedule your events around their already scheduled ones to show your support and appreciation! 
  • Take-out party – Pick your favorite restaurants and do a take out party. Pick just appetizers or your favorite desserts. Everyone meet back at your respective homes and tune in to the event to share where you ordered from. Celebrate good times and good friends while giving a shout out to the restaurants you love the most!

Join the crowd and use #WorldPartyDay to share on social media.


World Party Day was first observed in 1996 after the publication of Flight: A Quantum Fiction Novelby Vanna Bonta.  Since then, the sentiment explored by the novel has spread around the world.




On April 3rd each year, National Tweed Day focuses on all things tweed.  This day has a couple of approaches to celebrating the day, so you decide which one you believe is the source of National Tweed Day.

Some people think the observance celebrates the senator-turned-crook William “Boss” Tweed.  Tweed was born on April 3, 1823. He was the wealthiest and most powerful politician of his time. While being considered the “poster boy” for political corruption, Tweed is still known by many as one of the most notorious politicians in American history.  He died in 1878, in jail, after being caught with millions of dollars of stolen public money.

Others believe that National Tweed Day celebrates the fabric. Originally produced in Scotland, the durable textile was initially handwoven. While the rough, woolen cloth is sturdy, it is also known for being lightweight. The traditionally earthy colors blend well with the Scottish landscape, too. Different families of tweed fall into various categories and styles. The estate the tweet represents, the sheep from which the fabric is woven and the patter all determine the particular kind of tweed it becomes. Famous characters who wore tweed include Sherlock Holmes, James Bond and Professor Henry Jones (aka Indiana Jones).

Combining the Tweeds

Several actors have portrayed Boss Tweed in film, too. You may recognize Jim Broadbent for his portrayal of Tweed in Gangs of New York. The actor’s wardrobe may also contain a few pieces of tweed, too. One of his more notable tweed-wearing characters was Professor Horace Slughorn in the Harry Potter films.

While Vincent Price may be more well-known for other sinister characters, he also portrayed the notorious politician the musical Up in Central Park. The woolen textile didn’t make much of a stage presence, though. However, Price also voiced Professor Ratigan in the animated film The Great Mouse Detective. Based on the evil nemesis, Moriarity, from the Sherlock Holmes stories, we circle back to all things tweed.  

Boss Tweed shows up on screen two other times. The actors who portrayed him were Philip Bosco and Edward Andrews. Neither the film (Liberty) or the television series (The Great Adventure) are available for viewing. 

HOW TO OBSERVE #NationalTweedDay

Wear a tweed hat, vest or suit. While wearing your tweed, learn more about William “Boss” Tweed. Discover more about his impact on New York. Watch one of the movies mentioned above.

Read a book about textile or about Boss Tweed. May we suggest, Boss Tweed’s New York by Seymour J. Mandelbaum?

Use #NationalTweedDay to post on social media.


National Day Calendar continues to research the origins of this textile holiday.



Every April 3rd National Chocolate Mousse Day recognizes the decadent dessert that gained popularity in France in the 1800s.

Mousse is prepared by beating eggs or cream or both to a frothy, airy consistency and then folding the ingredients together to create a light, creamy delight.

While mousse can be either savory or sweet, for this day, we will focus on that all-time favorite, chocolate.

The words mousse and chocolate are derived from the French language, so it isn’t difficult to believe France is where to begin looking for the beginnings of this versatile creation. While we have no exact point in time when this might have been, we do know chocolate was introduced to the French around the year 1615, and they fell in love.

Then a century later, the French developed a method for making a mousse. Savory led the way, but it couldn’t have been long before the same approach was applied to chocolate.

In the United States, an advertisement in The Brooklyn Daily Eagle in 1887 included classes on how to make chocolate mousse offered by a Miss Parloa. She also advised how to make potato soup, larded grouse, potato timbale, and corn muffins.

From dark chocolate to milk chocolate, bittersweet, or any combination, there is plenty of variety when it comes to chocolate mousse.

HOW TO OBSERVE #ChocolateMousseDay

Give this recipe a try: Ghirardelli Chocolate Mousse recipe.

Use #ChocolateMousseDay to post on social media.

Certified ChocoholicDo you celebrate every chocolate day? Then get your Certified Chocoholic socks and more here!


National Day Calendar continues researching the origins of this sweet dessert holiday.

On Deck for April 4, 2020

National Days

International Days



Fresh Cranberry Salad
Recipe submitted by Ellen W. of North Dakota

Prep: 20 mins
Cook: 0 Cook time


1 Bag of Fresh Cranberries
2 Whole Oranges
2 Whole Apples
Sugar (or another sweetener of your preference)


Fill a large bowl with water.

Add cranberries to water. Let sit in water bath for about 10 mins.
(FOOD TIP: Once cranberries are in water, dispose of any that sink. Sinking cranberries are an indication they are bad).

While cranberries are bathing, wash apples and oranges.

Dice both apples and oranges into cubes. Set aside.

Drain cranberries.

Add cranberries, apples and oranges to food processor or chopper.

Process until thick and chunky. Consistency will be similar to a relish

Add sugar/sweetener to taste.

Cover put in fridge until chill.

Serve and ENJOY!

This dish can be prepared in advance and refrigerated until served.

Next Week

National Weeks

In the Classroom

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.
Whether you want to celebrate your favorite mail carrier and flip flops, share your joy for bacon and chocolate cake or enjoy popcorn (our office favorite) on National Popcorn Day, stay in-the-know by signing-up for our e-mail updates, and follow us on Facebook and Twitter. Don’t find yourself unprepared on Talk Like a Pirate Day or Answer the Phone Like Buddy the Elf Day – join us as we #CelebrateEveryDay!