World Down Syndrome Day
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World Down Syndrome Day
March 21, 2021
World Down Syndrome Day, 21 March every year, is a global awareness day which has been officially observed by the United Nations since 2012.
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.
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