World Down Syndrome Day

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This event will take place on 21/03/2018 and on day 21 every 12 months.

World Down Syndrome Day

21st March – “Lots of Socks”

World Down Syndrome Day (WDSD), observed on 21 March every year, is a global awareness day which has been officially observed by the United Nations since 2012.

Down Syndrome International (DSi) encourages our friends all over the world to choose their own activities and events on WDSD to help raise awareness of what Down syndrome is, what it means to have Down syndrome, and how people with Down syndrome play a vital role in our lives and communities.

Join in with us to create a single global voice for advocating for the rights, inclusion and well being of people with Down syndrome on 21 March.


The date for WDSD being the 21st day of the 3rd month, was selected to signify the uniqueness of the triplication (trisomy) of the 21st chromosome which causes Down syndrome.

We would like you to support World Down Syndrome Day by wearing “lots of socks” on 21st March. This could be brightly coloured socks, long socks, printed socks, 1 sock maybe even 3 socks for 3 chromosomes.