23 Fun Facts About Birthdays You Should Know

happy birthday balloons with happy birthday text

23 Fun Facts About Birthdays You Should Know

  1. Long noodles are a symbol of longevity in some cultures.
  2. The world’s most expensive birthday party cost millions.
  3. Famous figures have shared birthdays with notorious criminals.
  4. Some countries have age thresholds that bring special rights.
  5. The world’s oldest person ever lived to be over 120 years old!
  6. Your body undergoes many surprising changes every year.
  7. There are fun “national days” to celebrate on your birthday.
  8. There are fun “national days” to celebrate on your birthday.
  1. Children’s birthday parties are a relatively recent tradition.
  2. Not all calendars across history had the same number of days.
  3. Birth certificates weren’t standardized until fairly modern times.
  4. Some cultures prioritize celebrating name days over birthdays.
  5. Mexico has a unique way of celebrating the first bite of the cake.
  6. There’s a special term for people born on a leap year.
  7. Changing your birthday on social media is a common prank.

Table of Contents

1. More people celebrate birthdays in August than any other month.

August holds the title for the most birthdays worldwide. If you’re an August baby, you’re in good company, sharing your birth month with a significant portion of the global population!

The next contenders for most popular birth months globally are September and July. Interestingly, February consistently has the least number of birthdays.

2. Famous figures share their birthday with many others.

Even famous people have birthday twins! The chances of sharing your birthday with someone significant are surprisingly high.

For example, did you know that Justin Bieber, Orlando Bloom, and Betty White all share the same birthday – January 13th?

3. You share your birthday with about 20 million other people worldwide.

It turns out that your birthday isn’t as unique as you might think! On average, about 20 million people around the world will be celebrating their birthdays along with you on any given day.

This illustrates how, despite our individual lives, we’re all part of a vast interconnected human experience.

4. The “Happy Birthday” song was originally a completely different tune.

“Happy Birthday” song’s surprising origin! 🎶

READ ALSO: 26 Fun Facts About Books That Will Leave You Speechless

The “Happy Birthday” song we know and love wasn’t always a birthday standard. The original tune was a simple greeting created by two sisters called “Good Morning to All.”

After a series of lawsuits and ownership changes in the early 20th century, the melody was finally cemented as the popular birthday song.

5. Tuesday takes the title as the most common day for birthdays.

Looking at birth statistics, Tuesday is statistically the most common day of the week to be born. On the other hand, Sunday sees the fewest number of births.

The reasons behind these day-to-day variations aren’t fully understood, but they may be linked with factors like scheduled C-sections and induced labors.

6. When are most people born?

August is the most popular birth month, followed closely by July and September. Interestingly, February consistently has the fewest birthdays.

7. South Korea has its unique take on birthday celebrations.

While many cultures celebrate the individual’s birthday, South Korea takes a slightly different approach. Traditionally, babies are considered one year old at birth, and everyone gains a year on New Year’s Day.

This custom stems from an older way of calculating age that differs from the Western system we are familiar with.

8. The average person will eat their own weight in cake over their lifetime.

chocolate cake : Fun Facts About Birthdays
When do most people enter the world? 🎂

READ ALSO: 27 Fun Facts About Math | Get Smarter in Minutes

If you enjoy birthday cake, get ready for this surprising fact about birthdays – over your lifetime, it’s likely you’ll consume cake equal to your body weight!

Of course, this varies depending on how much cake a person eats and their size, but it’s an amusing statistic to consider.

9. Sharing a birthday with someone increases your chance of winning the lottery.

While it seems too good to be true, people who share birthdays strangely seem to have a higher chance of winning lottery prizes. This phenomenon is poorly understood, but it’s a fun birthdays fun fact to ponder.

Is your birthday twin your lucky charm? It’s an entertaining thought experiment with a foundation in surprising statistics.

10. Birthdays can have an impact on personality traits.

Some experts believe that the season you’re born in can subtly influence your personality. For example, summer babies tend to be more optimistic, while winter babies are believed to be less irritable.

While these links remain under debate, the idea that your birth season might leave a slight imprint on your disposition remains an interesting theory.

11. The world’s oldest birthday cake recipe is around 200 years old.

Baking has come a long way, but we can still find inspiration in birthday cake recipes from the past. The world’s oldest known birthday cake recipe, believed to have been written in England around the early 1800s, provides a glimpse at historical baking methods.

While not identical to modern cakes, the old recipe showcases the enduring appeal of this classic birthday treat.

12. The Queen of England has two official birthdays.

graphical user interface, website
The Queen’s double birthday celebration! 👑

READ ALSO: 26 Fun Facts About Judaism | A Journey Of Time and Belief

While most of us get one birthday a year, Queen Elizabeth II enjoyed the privilege of having two! She celebrates her actual birthday on the 21st of April and has a second, official birthday marked in June with public celebrations.

This tradition began centuries ago to ensure good weather for monarchs’ birthday parades–a practical solution from the past!

13. Which day of the week is the most common for birthdays?

Surprisingly, Tuesday is the most common day of the week to be born. On the other hand, Sunday sees the fewest birthdays.

14. Your birthday holds a special place in the animal kingdom.

Many animals have significantly shorter lifespans than humans, so they share our birthday more frequently. For example, a domestic cat turning 15 has lived an equivalent to about 76 human years!

This means that if you were born on the same day as your pet cat, that cat would technically celebrate many more birthdays than you during its lifetime.

15. The chances of dying on your birthday are higher than other days.

A less celebratory fact: Statistically, there’s a slightly higher chance of dying on your birthday than on other days of the year. Researchers theorize this could have links to psychological stress or people taking greater risks when celebrating.

However, don’t let this worry you—the overall increased risk remains small, and plenty of people live long fulfilling lives past their birthdays!

16. Astronauts age slower in space.

astronaut standing on gray sand
Time dilation: Astronauts age differently! 🚀

READ ALSO: 25 Fun Facts About The Ocean | Seaside Secrets

Time takes on a whole new meaning in the depths of space! Due to the effects of time dilation, astronauts in space age slightly slower than those on Earth.

This might make space travel sound appealing if you dread birthdays, but the time difference is minuscule over short periods.

17. Celebrating birthdays might boost your health and lifespan.

While there’s no evidence that birthday celebrations directly extend your life, a fascinating link exists. People with strong social connections and support networks tend to live longer and happier lives.

Celebrating birthdays can be a way to reinforce those social bonds, potentially contributing to a positive impact on well-being.

18. Pi Day overlaps with one of the greatest minds in history.

March 14th isn’t just for math enthusiasts—it was also the birthday of the great Albert Einstein! This coincidence makes Pi Day even more interesting for those who love science.

If you’re looking to celebrate in a unique way, why not combine your love of Pi and Einstein with a birthday-themed celebration?

19. How much money is spent on birthday cards?

Birthday cards are big business! In the United States alone, roughly 2 billion birthday cards are purchased annually, with people dedicating a significant portion of their card budget specifically to birthdays.

20. The tradition of birthday candles started with a belief in their magical powers.

lighted candles on brown cake
Birthday candles: Magical tradition origins! 🕯️

READ ALSO: 27 Fun Facts About Rain: Nature’s Marvel Explained

Birthday candles aren’t just for decoration! In ancient Greece, candles were placed on cakes as an offering to Artemis, the goddess of the moon.

The ancient Greeks believed that the smoke from the birthday candles carried wishes up to the gods residing in the heavens.

21. Birthday superstitions come in all shapes and sizes.

From blowing out candles to avoiding certain gifts, birthdays are surrounded by a rich history of superstitions. Some cultures believe making a wish while blowing out the candles increases the chances of it coming true.

Other superstitions warn against giving knives or clocks as birthday gifts, as these carry a symbolic meaning of severing ties or time running out. While playful and often lighthearted, these beliefs provide some fun facts about birthdays and how they hold deeper meanings for some.

22. Historically, birthdays weren’t always a cause for celebration.

Celebrating birthdays is a common practice today, but history tells a different story. Many early cultures didn’t attach much importance to individual birthdays – even for the wealthy and powerful!

The ancient Romans were among the first to celebrate birthdays for non-religious figures, primarily focusing on male friends and family.

23. Birthday traditions vary across the globe.

Many birthday traditions are familiar to us, but the world is full of unique customs! In China, long noodles symbolize longevity and are a popular birthday food.

In some countries like Mexico, the birthday person traditionally takes the first bite of the birthday cake face-first!


What’s the most popular birthday song?

The familiar “Happy Birthday To You” song holds the title of the most popular song in the English language.

How far back does the tradition of celebrating birthdays go?

The concept of celebrating birthdays has ancient roots, with evidence suggesting birthday celebrations originated in ancient Egypt.

What’s a surprising fact about birth certificates?

Birth certificates can be valuable collectors’ items! In 1997, Paul McCartney’s birth certificate sold for a staggering $84,146, making it the most expensive birth certificate ever sold at the time.

What is the psychology behind celebrating birthdays?

Celebrating birthdays often involves social and psychological elements, such as reinforcing personal identity, fostering social connections, and marking milestones. It can also evoke emotions tied to one’s sense of self-worth and belonging.

What are birthday blues?

Birthday blues refer to feelings of sadness, anxiety, or dissatisfaction that some individuals experience around their birthdays. These emotions may stem from various factors, including aging, unmet expectations, or reflection on life goals.

Scroll to Top