World Down Syndrome Day (WDSD)

World Down Syndrome Day (WDSD), 21 March, is a global awareness day. 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. 

Go to the WDSDExternal Web Site Policy website to read more about World Down Syndrome Day and how you can participate.