International Angelman Day2026 · Date · History · Messages
Angelman Syndrome Foundation and participating Angelman organizations
About International Angelman Day
International Angelman Day takes place on February 15 and brings together people with Angelman syndrome, families, support organizations, clinicians and advocates around the world. It is a voluntary awareness observance, not an international statutory holiday.
The Angelman Syndrome Foundation documents a first International Angelman Day in 2013 and provides accessible resources and community participation ideas. Participation and sharing a person’s story should always be voluntary and consent-aware.
Why International Angelman Day matters
Angelman syndrome is a neurogenetic condition that can affect communication, movement and development. This day emphasizes inclusion, meaningful support and the diverse lives of people with the condition.
Awareness should not reduce individuals to a diagnosis, prescribe unverified cures, or assume families wish to share personal details publicly.
History of International Angelman Day
In a February 4, 2013 organizer publication, the Angelman Syndrome Foundation announced the first International Angelman Day for February 15. The source establishes that first event without establishing a globally legislated day.
The foundation continues to list February 15 for current observances and provides medically reviewed support and clinical-care resources separately from campaign materials.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
Angelman Syndrome Foundation and participating Angelman organizations
The foundation announced a first observance in 2013; this is an NGO awareness event rather than legislation.
First documented observance
Organizer notice dated February 4, 2013 calls the upcoming 2013 campaign the first International Angelman Day.
Angelman Syndrome Foundation and international participating support organizations
Organizers provide an annual February 15 campaign and accessible resources.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
5 fields not established in reviewed sources
How to Observe International Angelman Day
Share resources from an established Angelman organization rather than speculation about cures.
Support accessible events where individuals and caregivers can opt in and their privacy is respected.
Learn about communication supports and individualized care through qualified clinical resources.
International Angelman Day Facts
Date: February 15 annually.
Organizer documentation identifies the first International Angelman Day in 2013.
This is an awareness campaign, not a day of statutory leave.
Medical diagnosis and care should be directed by qualified clinicians.
International Angelman Day Messages
Support research and reliable information without promising outcomes that science has not established.
Share kindness, respect privacy and make room for every individual’s voice on February 15.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Health Information Not Medical Advice.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
Angelman Syndrome Foundation — independent reviewed evidence (opens in a new tab)
Wave 367 Institutional Or Organizer Corroboration
Angelman Syndrome Foundation — independent reviewed evidence (opens in a new tab)
Wave 367 Institutional Or Organizer Corroboration
Angelman Syndrome Foundation — International Angelman Day (opens in a new tab)
Organizer Dedicated Page
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is International Angelman Day?
15 February The documented recurrence rule is: 15 February.
Does International Angelman Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is International Angelman Day an official public holiday?
The reviewed sources verify it within this scope: international Angelman syndrome awareness observance. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes International Angelman Day?
The reviewed sources identify Angelman Syndrome Foundation and participating Angelman organizations as the proclaiming or establishing body. Current facilitation or coordination is recorded as Angelman Syndrome Foundation and international participating support organizations.
Is International Angelman Day international or country-specific?
The documented scope is international or global: international Angelman syndrome awareness observance. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-10-08.
When is International Angelman Day?
February 15 each year.
When did it begin?
The Angelman Syndrome Foundation announced the first International Angelman Day in 2013.
Is Angelman syndrome contagious?
No. It is a genetic neurodevelopmental condition.
Does the awareness day replace medical guidance?
No. For clinical decisions, consult qualified professionals and evidence-based care resources.
Other observances on February 15
These observances are also listed on February 15, 2027.
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Louis Riel Day
Province of Manitoba
Lui-Ngai-Ni
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