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WORLD DOWN SYNDROME DAY

When is World Down Syndrome Day in 2025?

World Down Syndrome Day in 2025 is on the Friday, 21st of Mar (3/21/2025).

World Down Syndrome Day is on the 80nd day of 2025. There are 285 days left in the year.

World Down Syndrome Day Facts

  • Date: Mar 21, 2025
  • International
  • Also Called: World Down Syndrome Awareness Day
  • Celebrations: Day activities, events and a theme focused on showcasing the abilities and accomplishments of people living with Down syndrome.
World Down Syndrome Day iImage Credit: Flickr

Did you know that Down syndrome affects approximately 6000 babies at birth annually? World Down Syndrome Awareness Day is observed globally on March 21st every year. The observance aims at raising awareness and supporting those living with Down syndrome. The day also gives people living with Down syndrome and advocates a voice and an opportunity to address their concerns.

What Is Down syndrome?

Of all chromosomal disorders, down syndrome is the most prevalent in human beings. Usually, this genetic abnormality occurs when extra genetic material from chromosome 21 gets transferred to an embryo that is newly forming. Those additional genes result in changes to the developing embryo or fetus, and this brings about physical and mental abnormalities once the baby is born. According to statistics by the Centers for Disease Control and Prevention, about one in every 700 babies in the US is born with Down syndrome.

History of World Down Syndrome Day

Down syndrome has been in existence throughout history. Many infants born with this disability were either killed or abandoned in ancient times.

However, it was not classified as a mental disability until 1862 when Physician John Langdon Down did so. Down published his scholarly work in 1866, giving an accurate description of someone with Down syndrome. For this reason, he not only earned the title ‘the father of down syndrome’ but his name was used to recognize the mental disability.

In the 20th century, doctors put more effort to understand this condition, and after many years, Down syndrome was recognized as a form of mental disability.

After the Second World War, several advocacy groups came up fighting for the inclusion of Down syndrome people to the regular school system.

In 1990, the French Association for Research on Trisomy 21 (AFRT) was created to support research and medical advances in the field of Down syndrome.

In 2005, the AFRT conducted the first down syndrome meeting in Paris, and the observance for World Down Syndrome Day was designated as March 21st to coincide with the date Trisomy 21 was created. However, the first global observance of World Down Syndrome Day was in 2006.

In 2007, the World Health Organization acknowledged March 21st as the official World Down Syndrome Day. The UN followed suit in 2011 by supporting WHO’s acknowledgment. In December 2011, the UN issued Resolution 66/149 and officially declared March 21st as the World Down Syndrome Day. Since then, the day has been formally celebrated every year globally.

How to Celebrate World Down Syndrome Day

Today, World Down Syndrome Day is celebrated worldwide in more than 60 countries. Many communities and organizations such as the UN, WHO, and Down Syndrome International support the initiative. Every year, the UN chooses World Down Syndrome Day activities, events, and a theme focused on showcasing the abilities and accomplishments of people living with Down syndrome.

Parents and children living with this condition often feel isolated due to financial constraints and social misconceptions about Down syndrome. It is, therefore, an excellent gesture to visit someone who could be living with Down syndrome and spend time with them. You can also buy World Down Syndrome Day merchandise like branded t-shirts, mugs, posters, and other artifacts since the proceedings are meant to support people living with this mental disability.

You can celebrate this day by attending one of the events organized by the Down syndrome organization in your local area. These events are full of fun activities, concerts run, and conferences meant to educate the general public about the Down syndrome disability.

You can also wear World Down Syndrome Day bracelets or World Down Syndrome Day Shirt. However, ensure your attire is either blue or yellow since those are the official Down syndrome colors. You can as well decorate your office with balloons of these colors or in any creative way that you wish to rock this day.

Be sure to raise awareness among your friends and family members who might not be aware of the World Down Syndrome Day. You can do this by expression of mouth or just sharing your thoughts on social media via the hashtag #WorldDownSyndromeDay.

Is it Down or Down’s Syndrome?

Down Syndrome is the correct name. Physician John Langdon Down gave a vivid description of the mental condition though he did not have it. Therefore, naming the illness, Down’s syndrome could connote a condition that John had, which is not the case.

What Is Odd Socks Day?

People often wear unmatched World Down Syndrome Day socks. Sometimes, they wear odd ribbons or wristbands. It is a light-hearted approach meant to reduce stigma on patients with mental illness. This is because anyone can have a weird and confused day.

World Down Syndrome Day Observances

DAY
DATE
HOLIDAY NAME

List of National and Regional Public Holidays of International in 2025

DAYDATEHOLIDAY
WednesdayWedJan 01, 2025Jan 01Global Family Day
SaturdaySatJan 04, 2025Jan 04World Braille Day
SaturdaySatJan 11, 2025Jan 11International Thank-You Day
ThursdayThuJan 30, 2025Jan 30World Leprosy Day
WednesdayWedFeb 12, 2025Feb 12Darwin Day
FridayFriFeb 21, 2025Feb 21International Mother Language Day
SaturdaySatFeb 22, 2025Feb 22World Thinking Day
SaturdaySatMar 01, 2025Mar 01International Day of the Seal
SaturdaySatMar 08, 2025Mar 08International Women's Day
ThursdayThuMar 20, 2025Mar 20World Frog Day
FridayFriMar 21, 2025Mar 21World Down Syndrome Day
SaturdaySatMar 22, 2025Mar 22World Water Day
SaturdaySatMar 22, 2025Mar 22Earth Hour
SundaySunMar 23, 2025Mar 23World Meteorological Day
MondayMonMar 24, 2025Mar 24World TB Day
WednesdayWedApr 02, 2025Apr 02International Children's Book Day
MondayMonApr 07, 2025Apr 07World Health Day
SaturdaySatApr 12, 2025Apr 12Yuri's Night
WednesdayWedApr 16, 2025Apr 16International Special Librarians Day
MondayMonApr 21, 2025Apr 21International Creativity and Innovation Day
TuesdayTueApr 22, 2025Apr 22Earth Day
WednesdayWedApr 23, 2025Apr 23World Book Day
FridayFriApr 25, 2025Apr 25World Penguin Day
FridayFriApr 25, 2025Apr 25World Malaria Day
SaturdaySatMay 03, 2025May 03World Press Freedom Day
MondayMonMay 05, 2025May 05International Midwives Day
ThursdayThuMay 08, 2025May 08World Red Cross Day
SaturdaySatMay 10, 2025May 10World Lupus Day
MondayMonMay 12, 2025May 12International Nurses Day
TuesdayTueMay 13, 2025May 13IEEE Global Engineering Day
ThursdayThuMay 15, 2025May 15International Day of Families
SaturdaySatMay 17, 2025May 17World Hypertension Day
SundaySunMay 18, 2025May 18International Museum Day
WednesdayWedMay 21, 2025May 21World Day for Cultural Diversity
ThursdayThuMay 22, 2025May 22International Day for Biological Diversity
FridayFriMay 23, 2025May 23World Turtle Day
SaturdaySatMay 24, 2025May 24World Schizophrenia Day
SundaySunMay 25, 2025May 25Towel Day
SaturdaySatMay 31, 2025May 31World No-Tobacco Day
SundaySunJun 01, 2025Jun 01World Milk Day
TuesdayTueJun 03, 2025Jun 03World Bicycle Day
ThursdayThuJun 05, 2025Jun 05World Environment Day
SundaySunJun 08, 2025Jun 08World Ocean Day
SaturdaySatJun 14, 2025Jun 14World Blood Donor Day
MondayMonJun 16, 2025Jun 16International Day of the African Child
TuesdayTueJun 17, 2025Jun 17World Day to Combat Desertification & Drought
FridayFriJun 20, 2025Jun 20World Refugee Day
SaturdaySatJun 21, 2025Jun 21International Yoga Day
ThursdayThuJun 26, 2025Jun 26International Day Against Drug Abuse and Trafficking
FridayFriJul 11, 2025Jul 11World Population Day
WednesdayWedJul 16, 2025Jul 16World Snake Day
MondayMonJul 28, 2025Jul 28World Hepatitis Day
ThursdayThuAug 07, 2025Aug 07International Friendship Day
FridayFriAug 08, 2025Aug 08Universal & International Infinity Day
SaturdaySatAug 09, 2025Aug 09International Day of the World's Indigenous People
SundaySunAug 10, 2025Aug 10International Biodiesel Day
TuesdayTueAug 12, 2025Aug 12International Youth Day
WednesdayWedAug 13, 2025Aug 13International Lefthanders Day
ThursdayThuAug 14, 2025Aug 14World Lizard Day
SaturdaySatAug 23, 2025Aug 23International Day for the Remembrance of the Slave Trade & its Abolition
MondayMonSep 08, 2025Sep 08International Literacy Day
SaturdaySatSep 13, 2025Sep 13International Chocolate Day
MondayMonSep 15, 2025Sep 15Software Freedom Day
MondayMonSep 15, 2025Sep 15International Day of Democracy
TuesdayTueSep 16, 2025Sep 16International Day for the Preservation of the Ozone Layer
FridayFriSep 19, 2025Sep 19Talk Like a Pirate Day
SundaySunSep 21, 2025Sep 21World Gratitude Day
MondayMonSep 22, 2025Sep 22World Car-Free Day
MondayMonSep 29, 2025Sep 29Inventors Day
MondayMonSep 29, 2025Sep 29World Heart Day
WednesdayWedOct 01, 2025Oct 01International Music Day
WednesdayWedOct 01, 2025Oct 01World Ballet Day
ThursdayThuOct 02, 2025Oct 02World Farm Animals Day
FridayFriOct 03, 2025Oct 03World Temperance Day
SaturdaySatOct 04, 2025Oct 04World Animal Day
SundaySunOct 05, 2025Oct 05World Teacher's Day
FridayFriOct 10, 2025Oct 10World Mental Health Day
ThursdayThuOct 16, 2025Oct 16World Food Day
FridayFriOct 17, 2025Oct 17International Day for the Eradication of Poverty
FridayFriOct 24, 2025Oct 24United Nations Day
WednesdayWedOct 29, 2025Oct 29International Internet Day
SaturdaySatNov 08, 2025Nov 08World Town Planning Day
FridayFriNov 14, 2025Nov 14World Diabetes Day
SundaySunNov 16, 2025Nov 16International Day for Tolerance
WednesdayWedNov 19, 2025Nov 19World Toilet Day
FridayFriNov 21, 2025Nov 21World Television Day
TuesdayTueNov 25, 2025Nov 25International Day for the Elimination of Violence Against Women
SundaySunNov 30, 2025Nov 30International Computer Security Day
MondayMonDec 01, 2025Dec 01World Aids Day
TuesdayTueDec 02, 2025Dec 02International Day for the Abolition of Slavery
FridayFriDec 05, 2025Dec 05International Volunteers Day
SundaySunDec 07, 2025Dec 07International Civil Aviation Day
WednesdayWedDec 10, 2025Dec 10Human Rights Day

List of Popular Celebration Days of United States in 2025

DAYDATEHOLIDAY
SundaySunJan 12, 2025Jan 12National Pharmacists Day
SundaySunJan 19, 2025Jan 19National Popcorn Day
SundaySunFeb 02, 2025Feb 02Groundhog Day
WednesdayWedFeb 05, 2025Feb 05National Signing Day
FridayFriFeb 07, 2025Feb 07National Wear Red Day
SundaySunFeb 09, 2025Feb 09National Pizza Day
ThursdayThuFeb 13, 2025Feb 13Galentine's Day
FridayFriFeb 14, 2025Feb 14Valentine's Day
SaturdaySatFeb 15, 2025Feb 15National Bagel Day
TuesdayTueFeb 18, 2025Feb 18National Drink Wine Day
SaturdaySatFeb 22, 2025Feb 22National Margarita Day
TuesdayTueMar 04, 2025Mar 04National Pancake Day
FridayFriMar 07, 2025Mar 07National Cereal Day
FridayFriMar 07, 2025Mar 07National Employee Appreciation Day
SundaySunMar 09, 2025Mar 09Daylight savings
MondayMonMar 10, 2025Mar 10National Napping Day
FridayFriMar 14, 2025Mar 14National Walkout Day
FridayFriMar 14, 2025Mar 14National Pi Day
ThursdayThuMar 20, 2025Mar 20National Proposal Day
SundaySunMar 23, 2025Mar 23National Puppy Day
SundaySunMar 30, 2025Mar 30National Doctor Day
WednesdayWedApr 02, 2025Apr 02National Walking Day
ThursdayThuApr 03, 2025Apr 03National Burrito Day
MondayMonApr 07, 2025Apr 07National Beer Day
FridayFriApr 11, 2025Apr 11National Pet Day
SaturdaySatApr 12, 2025Apr 12National Grilled Cheese Day
ThursdayThuMay 01, 2025May 01National Day Of Prayer
SundaySunMay 11, 2025May 11Mother's Day
SundaySunMay 25, 2025May 25National Towel Day
SundaySunMay 25, 2025May 25National Wine Day
FridayFriJun 06, 2025Jun 06National Donut Day
SundaySunJun 08, 2025Jun 08National Best Friends Day
SundaySunJun 15, 2025Jun 15Father's Day
SaturdaySatJun 21, 2025Jun 21National Selfie Day
SundaySunJun 22, 2025Jun 22National Kissing Day
SundaySunJul 13, 2025Jul 13National French Fry Day
MondayMonJul 14, 2025Jul 14National Nude Day
WednesdayWedJul 16, 2025Jul 16National Hot Dog Day
SundaySunJul 20, 2025Jul 20National Ice Cream Day
WednesdayWedJul 23, 2025Jul 23Amazon Prime Day
ThursdayThuJul 24, 2025Jul 24National Tequila Day
TuesdayTueJul 29, 2025Jul 29National Chicken Wing Day
FridayFriAug 01, 2025Aug 01National Girlfriends Day
SundaySunAug 03, 2025Aug 03National Sister Day
ThursdayThuSep 18, 2025Sep 18National Cheeseburger Day
FridayFriOct 03, 2025Oct 03National Boyfriends Day
SaturdaySatOct 04, 2025Oct 04National Vodka Day
SaturdaySatOct 04, 2025Oct 04National Taco Day
ThursdayThuOct 09, 2025Oct 09Leif Erikson Day
SaturdaySatOct 18, 2025Oct 18Sweetest Day
WednesdayWedOct 29, 2025Oct 29National Cat Day
FridayFriOct 31, 2025Oct 31Halloween
MondayMonNov 03, 2025Nov 03National Sandwich Day
FridayFriNov 28, 2025Nov 28Black Friday
MondayMonDec 01, 2025Dec 01Cyber Monday
SaturdaySatDec 06, 2025Dec 06Candle Day
TuesdayTueDec 09, 2025Dec 09National Pastry Day
FridayFriDec 19, 2025Dec 19National Ugly Sweater day