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Autism Acceptance Month

Month-long awareness observance in April promoting acceptance and inclusion of autistic people through a neurodiversity-affirming framework.

Thursday

1–30

April 2027

Last updated February 26, 2026 · by the Holiday Calendar Team

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YEARLY DATEAll of April

OBSERVED INUnited States

CATEGORYAwareness

SUBCATEGORYDisability

ORIGIN

Paula C. Durbin-Westby

FOUNDING ENTITY

Paula C. Durbin-Westby

FIRST OBSERVED

2011

HOW THE HOLIDAY CAME TO BE

Autistic disability rights activist Paula C. Durbin-Westby organized the first Autism Acceptance Day on April 1, 2011, to counter negative portrayals in autism awareness campaigns and promote neurodiversity acceptance. It expanded to a full month through autistic community adoption.

ASAN Historical Recordvia autisticadvocacy.org

INTRO

Introduction

PHOTO

April is Autism Acceptance Month, a time to celebrate those on the autism spectrum and raise awareness about the condition. It started in the mid-1990s as a way to recognize and show support for individuals with autism and their families. Over the years, it has grown into an international event that brings people together to spread understanding and acceptance of those with autism. This April, join in on the celebration by learning more about autism and showing your support for those who live with it every day!

TIMELINE

Autism Acceptance Month Timeline

Autism's First Medical Identification

American child psychiatrist Leo Kanner published a paper describing 11 children who were highly intelligent but displayed "a powerful desire for aloneness" and "an obsessive insistence on persistent sameness". He later named their condition 'autism'.

Autism Society Formation

The Autism Society was founded by Bernard Rimland, Ivar Lovaas, Ruth C. Sullivan and a small group of other parents of children with autism. Its aim was to start a dialog about autism treatments and therapies.

Autism Recognition in DSM

Autism was officially recognized in the Diagnostic and Statistical Manual of Mental Disorders (DSM) in the 1980s, leading to more awareness and understanding of the condition.

Autism Acceptance Month's Start

Autism Acceptance Month began as Autism Awareness Day in the mid-1990s. It was later expanded to cover the entire month of April to raise more awareness and support.

Light It Up Blue Campaign

Autism Speaks launched the Light It Up Blue campaign, which involves lighting up buildings, landmarks, and homes around the world in blue light on World Autism Awareness Day (April 2).

Autism Acceptance Over Awareness

The autism community transitioned from using the term 'Autism Awareness Month' to 'Autism Acceptance Month' to emphasize the need for acceptance and understanding rather than just awareness of the condition.

GET INVOLVED

How to Celebrate Autism Acceptance Month

Learn about autism

Take the time to learn more about autism and how neurodiversity affects people in different ways. Research the spectrum and read stories from autistic people to gain a better understanding.

SUPPORT

Support autistic businesses

Show your support for people on the autism spectrum by shopping at businesses owned by autistic people. You can also donate to organizations that help autistic entrepreneurs.

ATTEND

Attend an event

See if there are any events or activities taking place near you that celebrate Autism Acceptance Month. Many cities host events such as art shows, film screenings, and lectures that center around autism awareness.

VOLUNTEER

Volunteer

Help out at a local autism organization or volunteer your time to support an autistic family in need. There are many opportunities for you to make a difference and show your support.

Share your story

Share your experience with autism by writing a blog post or creating a video. You can also spread awareness on social media by using hashtags like #AutismAcceptance and #AutismAwareness.

WHY THIS DAY MATTERS

Why Autism Acceptance Month is Important

It encourages support & inclusion

Lastly, Autism Acceptance Month is important because it encourages people to come together to support and include people on the autism spectrum. This means taking actionable steps to ensure access to appropriate services, develop meaningful relationships and provide social inclusion opportunities so everyone feels accepted, valued, and loved.

It helps reduce stigma

Autism Acceptance Month is important because it helps reduce the stigma associated with autism and other developmental disabilities. By educating the public about the importance of acceptance, we can create a more inclusive environment that celebrates neurodiversity and encourages people to be their authentic selves without fear of judgement or discrimination.

It raises awareness

Raising awareness about autism is essential for creating understanding and acceptance. Autism Acceptance Month provides an opportunity to spread knowledge about what life is like for individuals on the spectrum, as well as available resources and treatments to help them succeed in mainstream society.

Related holidays

World Autism Month

This World Autism Month, let's spread awareness and acceptance for individuals on the spectrum. Let's celebrate neurodiversity together!

World Autism Awareness Day

Let's come together to raise awareness and show our support for World Autism Awareness Day - join us in celebrating neurodiversity!

Adult Autism Awareness Day

Help spread awareness about Adult Autism this April 2nd by joining in on the conversation for Adult Autism Awareness Day!

National Developmental Disabilities Awareness Month

An awareness observance in March highlighting the needs and strengths of people with developmental disabilities to support independence and community inclusion.

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