When Was Autism Discovered?

Introduction

If you’re a parent in Fredericksburg, Virginia, a teacher supporting a student with autism, or an ABA professional working with families across the state, you may have asked: When was autism discovered?


The answer is more nuanced than a single date. Autism wasn’t “discovered” in one moment. Instead, our understanding of autism has evolved over more than a century, shaped by research, lived experiences, and advances in psychology and neuroscience.


In this article, we’ll walk through:


  • When autism was first identified

  • How the definition has changed over time

  • Key historical figures in autism research

  • How modern understanding differs from early misconceptions

  • What this history means for families in Fredericksburg and across Virginia today

The Early Descriptions of Autism (Pre-1940s)

Long before autism had a name, individuals with traits we now associated with Autism Spectrum Disorder (ASD) were described in medical literature.


In the early 1900s, children with social communication differences and repetitive behaviors were often misdiagnosed with:


  • Childhood schizophrenia

  • Intellectual disability

  • Emotional disturbance

The term “autism” itself comes from the Greek word autos, meaning “self.” It was first used in 1911 by Swiss psychiatrist Eugen Bleuler, who used it to describe a symptom of schizophrenia, not a separate condition (see historical references from the National Institute of Mental Health).


At this stage, autism was not yet understood as a developmental condition.


1943: Dr. Leo Kanner’s Landmark Study

The year most commonly associated with the discovery of autism is 1943.


In 1943, child psychiatrist Dr. Leo Kanner published a paper titled “Autistic Disturbances of Affective Contact.” In this study, he described 11 children who shared similar characteristics:


  • Difficulty with social interaction

  • Repetitive behaviors

  • Strong preference for sameness

  • Advanced vocabulary in some cases

  • Sensory sensitivities

This publication marked the first time autism was described as a distinct developmental condition rather than a symptom of another disorder.


You can find historical summaries of Kanner’s work through institutions like Johns Hopkins University and the American Academy of Pediatrics.


Kanner initially called the condition “early infantile autism.”


1944: Hans Asperger’s Observations

Around the same time in 1944, Austrian pediatrician Dr. Hans Asperger described a group of children with:


  • Strong verbal skills

  • Narrow, intense interests

  • Social challenges

  • Average or above-average intelligence

His work, published in German, did not gain widespread recognition in English-speaking countries until the 1980s.


Eventually, these characteristics were labeled Asperger’s Syndrome, which later became part of the broader Autism Spectrum Disorder classification in 2013.


Early Misconceptions: The “Refrigerator Mother” Theory

One of the most painful chapters in autism history was the “refrigerator mother” theory in the 1950s and 1960s. Some professionals wrongly believed autism was caused by emotionally distant parenting.


This theory was later thoroughly discredited. Research has consistently shown that autism is a neurodevelopmental condition with strong genetic components (National Institute of Neurological Disorders and Stroke).


As ABA professionals working with families in Virginia, we’ve seen firsthand how damaging misinformation can be. Many grandparents of children we support still remember hearing outdated theories. Today, we make it a priority in parent training sessions to clarify that autism is not caused by parenting style.


When Did Autism Become an Official Diagnosis?

Autism entered the Diagnostic and Statistical Manual of Mental Disorders (DSM) in 1980 as “Infantile Autism” under DSM-III.



Here’s how the classification evolved:


Year DSM Edition Autism Classification
1980 DSM-III Infantile Autism
1994 DSM-IV Autistic Disorder, Asperger’s, PDD-NOS
2013 DSM-5 Autism Spectrum Disorder (ASD)

The DSM is published by the American Psychiatric Association.


In 2013, the DSM-5 consolidated multiple diagnoses (Autistic Disorder, Asperger’s Syndrome, PDD-NOS) into one unified category: Autism Spectrum Disorder (ASD).


This shift acknowledged that autism exists on a spectrum with varying levels of support needs.


How Our Understanding Has Changed


Then (1940s–1960s)

  • Believed to be rare

  • Often confused with schizophrenia

  • Limited treatment options

  • High institutionalization rates

Now

  • Recognized as a spectrum

  • Early diagnosis possible (as young as 18–24 months)

  • Evidence-based therapies available

  • Strong focus on inclusion and community support

The CDC currently estimates that approximately 1 in 36 children in the United States has been identified with ASD.


That statistic alone shows how far awareness has come since 1943.


What This Means for Families in Fredericksburg, Virginia

Understanding when autism was discovered helps put today’s services into perspective.


In our sessions working with families across Virginia, we’ve seen how early identification changes outcomes. Parents often tell us:


“I wish we had known earlier.”


Because autism is better understood today than ever before, children in Fredericksburg can access:

  • Early intervention services

  • School-based support plans (IEPs)

  • ABA therapy

  • Speech and occupational therapy

  • Community inclusion programs

Virginia’s Department of Education provides guidance for special education eligibility and services.


A Local Example: Early Identification in Fredericksburg

One family we worked with in the Fredericksburg area noticed their toddler wasn’t responding to their name consistently and had limited eye contact. Because autism awareness is higher today than it was even 20 years ago, their pediatrician recommended an early screening.


The child was diagnosed before age 3.


With early ABA support and collaboration between therapists and school personnel, the child made measurable gains in:


  • Functional communication

  • Joint attention

  • Peer interaction

  • Classroom participation

Stories like this reflect how far we’ve come since autism was first described in 1943.


Why the History of Autism Matters


Understanding the timeline helps families:


  • Recognize that autism is not “new.”

  • See how research continues to evolve

  • Feel reassured that modern support is evidence-based

It also reminds professionals to stay current. As educators and ABA therapists in Virginia, we rely on ongoing training and updated research to guide best practices.


Organizations like the National Autism Center provide evidence-based treatment guidelines.


Key Milestones in Autism History

1911

The term “autism” was introduced (Bleuler).

1943

Leo Kanner defines early infantile autism.

1944

Hans Asperger describes a similar profile.

1980

Autism officially included in DSM-III.

1990

Autism included under Individuals with Disabilities Education Act (IDEA).

2013

DSM-5 unifies Autism Spectrum Disorder diagnosis.

How Research Continues to Evolve

Today, research focuses on:


  • Genetics

  • Brain development

  • Early intervention

  • Neurodiversity perspectives

  • Lifespan outcomes

Autism is now understood as a neurodevelopmental difference with a wide range of strengths and challenges.


In our clinical work, we’ve seen how individualized approaches matter more than labels. Two children may share a diagnosis but have entirely different learning profiles.


Frequently Asked Questions

Was autism discovered in 1943?

Autism was first described as a distinct developmental condition in 1943 by Dr. Leo Kanner, but earlier references to similar behaviors existed before that.


Who discovered autism first?

Dr. Leo Kanner is credited with identifying autism as a unique diagnosis in 1943. Hans Asperger described a related profile in 1944.


Is autism a new condition?

No. Autism has likely existed throughout human history, but it was formally identified and studied in the 20th century.


Conclusion

Autism was first formally identified as a distinct condition in 1943 by Dr. Leo Kanner, but our understanding of it has grown tremendously since then. What began as a misunderstood and narrowly defined diagnosis has evolved into a broader, more accurate recognition of Autism Spectrum Disorder as a neurodevelopmental condition with diverse presentations and strengths. For families, educators, and professionals in Fredericksburg and throughout Virginia, this history highlights how far research and support systems have come. Today, children with autism benefit from early identification, evidence-based therapies, inclusive education policies, and a deeper societal understanding. Knowing when autism was discovered is not just about history, it’s about recognizing the progress made and continuing to build informed, compassionate support systems for individuals with ASD and their families.


Career Based Solutions, offers personalized ABA therapy in Fredericksburg, and Virginia that empowers children with autism to thrive at home, in school, and in the community. 


Ready to support your child’s growth? Contact us today!



Frequently Asked Questions


  • What is ABA therapy and how does it help children with autism?

    Applied Behavior Analysis (ABA) therapy uses evidence-based strategies to improve communication, social skills, and daily living skills. It helps children with autism build independence and confidence.


  • At what age should a child start ABA therapy?

    Early intervention is most effective. Many children begin ABA therapy between ages 2–5, but it can benefit individuals of all ages by addressing unique developmental needs.


  • How do I choose the right ABA therapy provider in Virginia?

    Look for providers with experienced therapists, individualized treatment plans, and family-centered support. Career Based Solutions in Fredericksburg specializes in tailoring ABA programs to each child’s strengths and goals.


SOURCES:


https://www.nimh.nih.gov


https://www.aap.org


https://www.ninds.nih.gov


https://www.psychiatry.org


https://www.psychiatry.org


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