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International Angelman Day

Let's join together to raise awareness and support for those with Angelman Syndrome on International Angelman Day - every voice counts!

Monday

February 2027

Last updated February 7, 2026 · by the Holiday Calendar Team

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YEARLY DATEFebruary 15

OBSERVED INInternationally

CATEGORYAwareness

SUBCATEGORYRare Diseases

INTRO

Introduction

PHOTO

Mark your calendars for February 15, because it's time to celebrate International Angelman Day! This day is dedicated to raising awareness and support for individuals with Angelman syndrome, a rare neurogenetic disorder that affects about 1 in 15,000 people worldwide. It was first observed in 2013 and has been celebrated every year since then with events, fundraisers, and social media campaigns. Let's spread some love and support for the amazing individuals with Angelman syndrome on this special day!

TIMELINE

International Angelman Day Timeline

Angelman Syndrome Identified

English pediatrician Harry Angelman identified Angelman Syndrome when he noticed similarities between three children who had severe intellectual disability, lack of speech, a certain behavior with happy demeanor, walking and balance disorders, and seizures.

First Angelman Syndrome Foundation

The Angelman Syndrome Foundation (ASF), the first organization specifically dedicated to Angelman Syndrome, was founded in the United States.

Angelman Syndrome Genetic Cause Discovered

Scientists discovered that Angelman Syndrome is typically caused by deletion or mutation of the UBE3A gene on the maternal 15th chromosome.

FAST Foundation Established

Foundation for Angelman Syndrome Therapeutics (FAST) was founded to fund research for treatments and a cure for Angelman Syndrome.

First International Angelman Day

The first International Angelman Day was held on February 15th, 2012. The day is dedicated to raising awareness and generating support for individuals with Angelman Syndrome, their families and the scientific community involved in research.

GET INVOLVED

How to Celebrate International Angelman Day

Host an awareness event

Organize an event to raise awareness for Angelman Syndrome, such as a walk or run, a charity auction, or a benefit concert. This is a great way to bring attention to the cause and show support for those affected by Angelman Syndrome.

WEAR

Wear blue

Blue is the official color for Angelman Syndrome awareness, so encourage others to wear blue on International Angelman Day. You can also purchase custom t-shirts or other merchandise with the Angelman Syndrome ribbon to show your support.

LEARN

Learn more about Angelman Syndrome

Take some time to research and learn more about Angelman Syndrome. You can watch documentaries, read articles, and talk to individuals and families affected by the syndrome to gain a better understanding of it.

SUPPORT

Support a local Angelman Syndrome organization

Find a local organization that supports individuals with Angelman Syndrome and get involved. You can volunteer, donate, or participate in their events to show your support.

Share your story

If you or someone you know is affected by Angelman Syndrome, share your story on social media or with friends and family. This can help raise awareness and show others the impact of this condition on individuals and families.

WHY THIS DAY MATTERS

Why International Angelman Day is Important

It brings together a community of support

International Angelman Day allows individuals, families, and organizations to come together as a community to show their support and solidarity. It creates a sense of belonging and connection for those affected by Angelman Syndrome, and helps them feel less alone in their journey.

It raises awareness for Angelman Syndrome

International Angelman Day is an important opportunity to educate people about this rare genetic disorder. It helps increase understanding and support for the individuals and families affected by it.

It promotes inclusion and acceptance of individuals with disabilities

By celebrating International Angelman Day, we are also promoting the idea of inclusivity and acceptance for people with disabilities. It's a day to recognize and celebrate the unique abilities and qualities of those with Angelman Syndrome.

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