2018World Down Syndrome Day - First Day Cover

World Down Syndrome Day is observed every year on March 21rst, with this date chosen symbolically (21/3) to signify the uniqueness of the triplication (trisomy) of the 21rst chromosome which causes Down syndrome. Despite the certain psychophysical disorder in the growth of an individual with Down Syndrome, they are optimistic, joyful and kind-hearted, and their interaction with the environment is warm and sincere.