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Last update: December 14th 2025 at 3:37pm
World Down Syndrome Day
Mar 21 2023, All day
Abbotsford School District
World Down Syndrome Day is marked each year on March 21, beginning in 2006. The 21st day of March was selected to signify the uniqueness of the triplication of the 21st chromosome which causes Down syndrome. Every year on March 21, World Down Syndrome Day is observed to create awareness about Down syndrome.