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.
On March 21st, students and staff are asked to wear mismatched/colourful socks. Socks were chosen because the karyotype of Ds chromosomes actually looks like mismatched socks!