Eugen Bleuler first uses the label "autism" to describe some symptoms of schizophrenia.

Leo Kanner first used the word autism to describe behavior of children.

Hans Asperger diagnosed Asperger's Syndrome being similar to autism.

The DSM II listed autism as type of childhood schizophrenia.

Expanded protections for people with disabilities and established 504 plans for accommodations.

This law gave mandated that students with disabilities receive FAPE.

This gave autism its own separate diagnoses and was first described as pervasive developmental disorder.

DSM III revised to include degrees of autism and gave pervasive developmental disorder its own label under autism.

Added autism and traumatic brain injury as disability labels and also required transition planning.

The DSM-5 eliminates all other autism labels (PDD and Asperger's).