World Down Syndrome Day (WDSD), March 21st, is a global day of awareness which has been officially observed by the United Nations since 2012, and officially enacted by the Legislative Assembly of Ontario in 2016. The date 3-21, represents the triplication of the 21st chromosome, which identifies Down syndrome. As a sign of support, people wear mismatched socks to show their awareness that differences are beautiful.

The DSAYR invites educators and all professionals to use the graphic materials on this page to celebrate in your schools and workplaces.

  • WDSD 2024
  • WDSD 2023
  • WDSD 2022
  • WDSD 2021

Chloe explains Down’s syndrome
Down syndrome 101
ASSUME THAT I CAN | World Down Syndrome Day 2024

NOT SPECIAL NEEDS | March 21 – World Down Syndrome Day
Kids Meet Woman with Down Syndrome (Michela) | Kids Meet | HiHo Kids
Down Syndrome ROCKS!

THE HIRING CHAIN performed by STING | World Down Syndrome Day 2021
I have one more chromosome than you. So what? | Karen Gaffney