Today, March 21, 2025, marks World Down Syndrome Day, an annual global event dedicated to raising awareness and advocating for the rights, inclusion, and well-being of individuals with Down syndrome.

This date symbolizes the triplication of the 21st chromosome, the key genetic trait of those with Down syndrome. The name “Down syndrome” originates from English physician John Langdon Down, who first described the condition in 1866, nearly a century before the cause was identified. French geneticist Jerome Lejeune later discovered the additional chromosome on the 21st pair, which causes the disorder.

In addition to global events, today's observance also serves as a reminder to embrace diversity and improve our support systems. On this day, consider celebrating the diversity in all of us by wearing colorful, mismatched socks as a show of support for individuals with Down syndrome. Let’s all stand together in recognizing the dignity, rights, and well-being of those with Down syndrome.