World Down Syndrome Day

International

The 21st day of March (the 3rd month of the year) was selected to signify the uniqueness of the triplication (trisomy) of the 21st chromosome which causes Down syndrome.

Related topics

  • Down Syndrome

    Down syndrome involves a distinct learning profile that often includes differences in working memory, processing time, and abstract reasoning. People with Down syndrome have a wide range of abilities.

  • Cognitive Accessibility

    Designing for people with cognitive and intellectual disabilities, memory differences, and learning difficulties.