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Hans Asperger describes what is now known as Level 1 Autism, and names it Asperger's after himself
1944
Twin studies find that autism has a largely genetic basis
1977
Autism Spectrum Disorder (ASD) becomes the all-encompassing diagnosis for all levels of autism
2013
A now-discredited study proposes that autism is caused by the Measles-Mumps-Rubella (MMR) vaccine
1998
Psychiatrist Eugen Bleuter first uses the word autism, deriving from the Greek autós meaning "self"
1910
"Rain Man", a movie starring Dustin Hoffman as an autistic savant, brings autism to the public consciousness
1988
Psychologist Bruno Bettelheim blames autism on so-called "Refrigerator Mothers", who supposedly don't show their children enough affection
1960s
Psychiatrist Leo Kanner publishes a paper describing what was then known as "early infantile autism"
1943
Infantile autism is included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-III) for the first time
1980
"Autism Disorder" replaces infantile autism in the Diagnostic and Statistical Manual of Mental Disorders, accompanied by a checklist of diagnostic criteria