Where the World Gathers to Celebrate Every Day


Optimist Day - First Thursday in February


Confident people look to the future with hope, and on Optimist Day we celebrate the volunteers who share their enthusiasm, skills, and talent to make that tomorrow a vibrant and peaceful one. On the first Thursday in February, recognize an optimist whose endeavors have made a difference in your community.

Each year, Optimist organizations around the world volunteer their time and skills working with the youth in their communities. They provide leadership, scholarship, wellness and safety, arts and sports programs.

Optimist Day recognizes the volunteers and the youth who support their communities in many different ways. Every day, our growing communities rely on the ingenuity and energy of the next generation to be an integral part of our neighborhoods, schools, and towns. These young volunteers and the mentors who guide them connect them to the greater world around us. Their stewardship creates a hopeful and future for us all.


Recognize the volunteers in your community. Dedicate the day to their accomplishments and let them know how much you appreciate them. Let them know your community admires their hard work and dedication. Encourage other youth to become involved in community organizations, too. Help them see the benefits of improving the world where they live and connecting with the people who live there. Share the projects and resources of your communities’ volunteer organizations, the volunteers, and youth, too. Use #OptimistDay on social media.

Consider your support for Optimist International by purchasing the 2021 National Day Wall Calendar and 40% of all purchases will go Henry County Optimist Club to support youth.


The original idea for Optimist Day developed in 1909 when the Optimist Club of America promoted the day to be observed on April 1st as a way to encourage kind acts and further optimism. The idea was to also replace the practical joking associated with April Fool’s Day. For the next several decades, clubs across the country hosted Optimist Day observances in their communities on various dates throughout the year.

In 2017, Optimist International declared Optimist Day to be observed on the first Thursday in February with a focus on recognizing the achievements of the volunteers and the youth in the community. Each year, the programs they support to improve their communities and provide opportunities for the youth of all ages. They also coordinate with other volunteer organizations making the future brighter for all involved.



February 4th heats up with National Homemade Soup Day. In every cuisine, soup provides a rich basis of flavor and history. 

Before the era of modern transportation, soup was a product of regionally available foods. For this reason, there are thousands of soup recipes available today.

Many soups also offer medicinal properties. What was once considered a wive’s tale, chicken soup now has the backing of the scientific community. Yes, chicken soup helps relieve the symptoms of the common cold. How? Well, scientists believe that a bowl of the soup may reduce inflammation of the lungs. It is thought that chicken soup slows down the activity of white blood cells that can cause inflammation.

But that’s not all homemade soup does. Every cook knows the most important ingredient that goes into every pot of simmering soup. They keep the ingredient stored where it will do its best work, too. As they work, they season the soup from their heart giving it just the right amount of love each and every time. Whether they add it with the noodles or the vegetable, the broth or the cream, each cook knows there’s enough to go around. That’s why homemade soup heals the best. 

HOW TO OBSERVE #NationalHomemadeSoupDay

Tell us about your favorite homemade soup. Share a recipe or a memory. Gather the family to learn how to make your best recipe and share the love. Need a new recipe to add to your collection? From chowders and broths to creamy bisques, National Day Calendar® found a few recipes to give a try on National Homemade Soup Day.

Wonton Soup

Decadent Tomato Bisque

Chicken and White Corn Chowder

Use #NationalHomemadeSoupDay to post on social media.


National Day Calendar continues searching for the origins of this warm-hearted holiday. But we’re pretty sure someone who seasoned everything with love had a hand in it.



On February 4th, National Hemp Day proudly weaves a celebration surrounding an industry with a long and innovative history.

Did you know hemp has been a part of human civilization for thousands of years? The world’s earliest civilizations used hemp fibers to make fabric for clothing and other materials. Even America’s founding fathers drafted early documents on hemp paper. During the last century, leaders used a “Hemp for Victory” campaign during WWII to encourage farmers to grow hemp for military use. Since then, hemp has been an essential material in the innovation of several industries. For example, shipping, construction, and textiles rely on hemp for numerous products. The construction industry started using hemp in place of concrete (known as hempcrete) since it is windproof and offers a lower carbon footprint.

The Industrial Hemp Pilot Program allowed several states to grow, cultivate, and process hemp for agricultural purposes. These programs brought thousands of new jobs to an industry that had long been considered obsolete because of the Schedule I classification of hemp (the same classification as heroin and LSD).

In 2018, the hemp industry celebrated a massive win with the passage of the Farm Bill. Hemp – including the leaves, stalks, and stems – has since been rescheduled to a Schedule V classification, the same as OTC low-dose codeine. As a result, the growing, producing, and distribution of hemp are legal on a national level. Products made from hemp such as CBD, clothing, plastics, paint, insulation, and biofuels will now be more readily available. The passing of the 2018 Farm Bill brings massive growth potential. Some publications are estimating that the hemp industry will become a multi-billion dollar industry for the United States.

HOW TO OBSERVE #NationalHempDay

It’s easy: support your hemp farmers and research hemp-derived products. Celebrate the history of hemp and the farmers who work so hard to grow it. Check out the products they have to offer; hemp can be found anywhere, from soaps and shampoos to socks and shorts. Join other hemp supporters out there on social media by using the hashtag #NationalHempDay on Feb. 4th!


cbdMD founded National Hemp Day in 2019 to celebrate the hemp plants’ illustrious past. You can visit www.cbdMD.com for more information!

The Registrar at National Day Calendar declared National Hemp Day in 2019, and we celebrate it on February 4th, annually



National Thank A Mail Carrier Day (also known as Thank a Mailman Day) on February 4th reminds us that someone makes sure the mail gets through 6 days a week 52 weeks a year. The day is a timely note of just how important mail carriers are to our daily lives. Take time out of our day to thank the mail person who is responsible for delivering our mail to us.  

The motto of the Pony Express riders, who were the most famous early American mailmen, was  “Neither rain, or snow, nor death of night, can keep us from our duty.”  This motto is believed to be taken, in part, from a motto dating back to ancient times.  The most popular variation of this motto is “Through rain or snow, or sleet or hail, we’ll carry the mail. We will not fail.”

Fun Facts:
  • In 1775, the Second Continental Congress established the Constitutional Post–the first organized mail service in America.
  • As the nation’s first Postmaster General, Benjamin Franklin established many of the conventions we are accustomed to today.
  • Postage stamps were invented in 1847.
  • On April 3, 1860, the famous Pony Express officially took off.
  • In 1863, free city delivery started, and in 1896, free rural delivery began.
  • In 1963, the Zip Code began.

HOW TO OBSERVE #ThankAMailCarrierDay

Give your mail carrier a big thank you. One way to celebrate is with a friendly smile or a token of appreciation. Let your mail carrier know how much you value them. At National Day Calendar, we sure appreciate the service our mail carrier, Tim, provides. Thanks, Tim! Give your mail carrier a shout out on social media using #ThankAMailCarrierDay.


While we continue researching the origins of this holiday, we promise to deliver any updates to you promptly. 



National Create A Vacuum Day on February 4th explores spaces void of matter. On this day, we are challenged to create one.

A vacuum is created when the pressure inside a space is lower than the pressure outside the area.

It’s difficult in a world full of minuscule particles of matter to create a space that has absolutely no matter. However, we create partial or simple vacuums at home. One of the easiest ways is using a syringe. By plugging up the open end and pulling back on the plunger, the space inside will be mostly free of matter. There will always be microscopic particles remaining, though.

HOW TO OBSERVE #CreateAVacuumDay

Conduct an experiment using vacuums. Return to science class by watching videos that show how to create vacuums. Watch a documentary about the vacuum of space. You might learn about what creatures can survive there, too

Use #CreateAVacuumDay to post on social media.


Although we continue researching the origins of this fascinating holiday, we’re certain they’re somewhere in the vacuum of someone’s mind. 

On Deck for February 5, 2021

National Days

International Days

February 4th Celebrated (and Not So Celebrated) History


The Electoral College is convened and casts its votes unanimously electing George Washington as the first President of the United States of America.


Carey & Lea of Philadelphia publishes James Fenimore Cooper’s The Last of the Mohicans.


The first Winter Olympic Games outside Europe opens in Lake Placid, New York.


Disney releases the animated film Snow White and the Seven Dwarfs.


Roy J. Plunkett received patent No. 2,230,654 for the non-stick material called Teflon.


Mark Zuckerberg, Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes launched the social networking platform called The Facebook.

Recipe of the Day

Garlic Gazpacho

Prep:  30 minutes
Cook:  This soup is served cold 
Total Prep: 30 minutes
Servings: 12


2 cloves garlic
6 large tomatoes, peeled
1 large tomato, unpeeled
1 large onion
1 each green bell peppers
2 small cucumbers
½ cup olive oil
½ cup lemon juice
3 cups tomato juice, chilled
1 dash salt
1 dash cayenne pepper


In a food processor, blend peeled tomatoes and garlic.

Add 1/4 of peppers and 1/4 of onions and 1/2 of cucumber and blend. Chill mixture for 1 hour.

Chop the remaining tomato and julienne the remaining vegetables. Cover and chill.

Just before serving, blend olive oil, lemon juice, salt, cayenne, and tomato juice in blender. Combine with chilled mixture.

Ladle into soup bowls and garnish with remaining vegetables.

Serve with crusty bread, such as a baguette.

February 4th Celebrated (and Not So Celebrated) History

Charles Lindbergh – 1902

In 1927, the American aviator gained international notoriety when he became the first person to fly solo non-stop from across the Atlantic ocean. His flight in his monoplane named Spirit of St. Louis from New York to Paris earned him a prize of $25,000.

Clyde W. Tombaugh – 1906

In 1930, the American astronomer discovered the 9th planet in our solar system – Pluto. It would later be demoted to a dwarf planet in 2006.

Rosa Parks – 1913

The American civil rights activist sparked the Montgomery Bus Boycott in 1955 when she refused to give up her seat in the ‘colored section’ of the bus to a white person.

Betty Friedan – 1921

The noted journalist and activist co-founded the National Organization of Women in 1966.

Honorable Mention

Alice Cooper -1968
Oscar De La Hoya – 1973
Dan Quayle – 1947
John Schuck – 1940

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!

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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.