National Sibz Day

Young adults laughing together, wearing matching t-shirts, retro fashion, outdoors picnic setting..
National sibz day illustration

Welcome to, where we dig deep into the origins and exciting moments of various national days! Today, we have an intriguing topic to explore: National Siblings Day.

When is Sibz Day?

It's national sibz day on the 10th April.

What is National Siblings Day?

On this special day, we celebrate the unique and sometimes crazy bond that exists between siblings. Whether they are your annoying little brother, your protective older sister, or your supportive twin, National Siblings Day is the perfect occasion to show appreciation for the people who have known you the longest.

Although the exact origins of National Siblings Day are somewhat mysterious, we do know that it was founded by Claudia Evart in 1995. Claudia created this day to honor the memory of her siblings who unfortunately passed away at a young age. She wanted to remind everyone of the importance of cherishing their brothers and sisters while they are still here.

How to Celebrate National Siblings Day?

Celebrating National Siblings Day is all about enjoying quality time with your siblings and making them feel special. Here are a few ideas:

  • Organize a sibling movie night with their favorite films and lots of popcorn.
  • Write a heartfelt letter expressing your love and gratitude.
  • Share some childhood memories and have a good laugh together.
  • Send them a surprise gift to let them know you're thinking of them.

A Fun Fact About Siblings

Did you know that sibling relationships can vary a lot depending on birth order? A study conducted by Dr. Kevin Leman found that firstborns tend to be responsible and reliable, while youngest siblings are often more adventurous and charming. Middle children, on the other hand, can be excellent negotiators and peacemakers. So, each sibling brings a unique dynamic to the family!

History behind the term 'Sibz'


The Birth of a Trend

In 2005, the term 'sibz' emerged as a neologism in youth slang. It was initially popularized in online gaming communities and forums, specifically among gamers who played first-person shooter games. 'Sibz' was used as a slang term to refer to siblings or close friends, emphasizing the strong connection and camaraderie among the gaming community.


Spread through Social Media

Around 2010, the term 'sibz' began to gain traction on social media platforms, particularly on Twitter and Facebook. Users adopted 'sibz' to describe their close friends, extending its meaning beyond just siblings. It became a playful term used to emphasize the bond and loyalty between friends.


Integration into Pop Culture

In 2013, the term 'sibz' made its way into popular culture. It appeared in song lyrics, YouTube videos, and even television shows. This integration into mainstream media further cemented 'sibz' as a widely recognized term, especially within the younger demographic.


Memes and Memorable Moments

By 2017, 'sibz' had become an essential part of internet culture. Memes and viral videos featuring the term started to circulate, amplifying its influence and sparking further interest. 'Sibz' was now being used not only as a term of endearment but also as a humorous reference to the close bonds formed through shared experiences, both online and offline.


Recognized as a Cultural Phenomenon

In 2020, 'sibz' had firmly established itself as a cultural phenomenon. The term had transcended its gaming origins and had become widely used in various contexts, representing friendship, camaraderie, and solidarity among individuals. Its multifaceted meaning contributed to its longevity and ongoing popularity, making 'sibz' an enduring part of the contemporary lexicon.

Did you know?

Did you know that sibling relationships can vary a lot depending on birth order? A study found that firstborns tend to be responsible and reliable, while youngest siblings are often more adventurous and charming.


fun loved ones rememberance

First identified

10th April 2015

Most mentioned on

10th April 2015

Total mentions


Other days

cheese lovers

Cheese Lovers Day

teddy bear

Teddy Bear Day


Sibs Day


Biscuit Day

cancer survivors

Cancer Survivors Day


Agriculture Day


Pumpkin Day

suicide prevention

Suicide Prevention Day


Memorial Day

first responders

First Responders Day