World Down Syndrome Day

2025.03.21.

World Down Syndrome Day is celebrated on the 21st of March to raise awareness of the lives, challenges and achievements of people with Down syndrome. But what exactly is Down syndrome, how did World Down Syndrome Day come about, and what do these half-length socks have to do with it? Let's take a closer look!

What is Down syndrome?

Down syndrome is a genetically determined, specific pathway of human development that results from a trisomy on chromosome 21. This means that there are three copies of this chromosome instead of the usual two. This genetic discrepancy can result in a number of different manifestations, including intellectual disability (mild to severe), distinctive facial features and certain health risks. However, it is important to stress that all people with Down syndrome are unique and their personalities, abilities and interests are as varied as anyone else's.

World Down Syndrome Day was first celebrated in 2006 and officially recognised by the United Nations in 2011. The choice of date is symbolic: the 21st day of the 3rd month refers to the trisomy of chromosome 21. The event aims to promote social awareness and support inclusion, education and employment opportunities for people with Down syndrome.

On this day, events, conferences and various programmes are organised around the world to help raise awareness and break down stereotypes.

Why do we wear half socks on this day?

Raised socks have become a worldwide symbol on World Down Syndrome Day. But why socks, and why wear different patterns and colours? The idea stems from the fact that a microscopic image of chromosomes resembles the shape of socks, and socks with different patterns convey the message that diversity is beautiful and natural.

By wearing half-length socks, people can show their support and solidarity with people with Down syndrome, while helping raise awareness of the importance of acceptance and equality. The campaign is a simple, yet effective way for everyone - regardless of whether they are personally affected - of getting involved in raising awareness.

So, on the 21st of March, let’s put on a pair of half socks, talk about Down syndrome and take a step together towards a more open and inclusive world!

If you would like to join in or show your solidarity, take a picture of yourself in a pair of half-length socks and share it on social media with the hashtag #LotsOfSocks. This is part of the official World Day campaign, more information about which can be found here!