National Sister Day

Two sisters holding hands, smiling in a vibrant garden, wearing flowy dresses, surrounded by colorful flowers..
National sister day illustration

Oh sisters, how we love them! They are our confidants, partners-in-crime and often our best friends. But as anyone with a sister knows, they can also be a pain in the side! National Sister Day is that one day a year where we get to celebrate this wonderfully complex relationship.

When is Sister Day?

It's national sister day on the 3rd August.

Internet History of National Sister Day

Based on our archives, we've clocked a rather impressive 38490 mentions of National Sister Day online. It seems like sisters are getting the appreciation they deserve! With mentions of this special day peaking on 03 Aug 2015, it gave social media a reason to explode with posts and tweets full of sisterly love.

A Day for Sisters Everywhere

Regardless of whether they are older, younger, or even twin sisters, National Sister Day is the perfect excuse to give your sibling a shout out and celebrate the bond that only sisters share. No matter how many hairbrush fights you've had in the past!

The Origins of National Sisters Day

As it often goes with these informal holidays, the origin of National Sisters Day is somewhat shrouded in mystery. Some sources suggest that the holiday was created by an organization seeking to honor sisterhood, while others claim it began as a marketing ploy. But whatever the origin, one thing is clear - we all need a day to show our sisters how much we cherish them.

Celebrating National Sisters Day

So, how do you celebrate National Sisters Day? It's simple - tell your sister you love her! Leave a sweet note, reminisce about childhood shenanigans, or simply spend quality time together. And of course, don't forget to give her a tight sisterly hug - though perhaps, do it when she least expects it for a good laugh!

History behind the term 'Sister'

9th Century

Origins in Old English

The term 'sister' can be traced back to the 9th century when it originated from the Old English word 'sweostor.' This word derived from the Proto-Germanic word 'swestēr,' which signified the female sibling relationship. The linguistic roots of 'sister' can be linked to many other Indo-European languages, further highlighting its ancient origins.

14th Century

Evolution and Middle English

In the 14th century, during the Middle English period, the term 'sister' underwent some changes. The Old English 'sweostor' transformed to 'suster' in Middle English. This transition was due to linguistic shifts and adaptations happening during this time. However, the fundamental meaning and significance of 'sister' remained intact, representing the bond between female siblings.

16th Century

Religious and Convent Communities

During the 16th century, the term 'sister' became closely associated with religious and convent communities. Nuns within these religious orders were commonly referred to as 'sisters,' emphasizing their spiritual kinship and dedication to their faith. This usage of 'sister' expanded its meaning beyond biological siblings, embracing a broader sense of sisterhood.

19th Century

Women's Rights and Feminism

In the 19th century, the term 'sister' gained additional significance within the context of women's rights and the feminist movement. It was employed as a symbol of solidarity among women fighting for equal rights, education, and suffrage. 'Sisterhood' emerged as a powerful concept, highlighting the unity and support among women in their struggle for gender equality.

21st Century

Contemporary Usage and Empowerment

Today, the term 'sister' continues to encompass a range of meanings. It represents the bond between biological siblings and extends to symbolize solidarity, support, and friendship among women. The concept of 'sisters' has transformed into a broader notion of female empowerment, encouraging women to uplift and inspire each other in various aspects of life. Whether used literally or metaphorically, 'sister' holds a special place in celebrating the strength and unity of women everywhere.

Did you know?

Did you know that studies have shown having a sister can make you a happier and more optimistic person? So, cheers to all sisters out there making life a little better!


awareness fun loved ones rememberance relationships family sisters

First identified

10th April 2015

Most mentioned on

3rd August 2015

Total mentions


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