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

WDSD was first observed in 2006 in many countries around the world.

On 19 December 2011, the United Nations General Assembly declared 21 March as World Down Syndrome Day. The General Assembly decided to “designate 21 March as World Down Syndrome Day, to be observed every year beginning in 2012”.

National Down Syndrome Awareness Day falls on the 20th October each year.

With Down syndrome being a Genetic condition, we aim to create awareness around Down syndrome and promote the abilities of people with the condition.