From Disability History
With the support of a Dybwad fellowship, Gerald Walsh visited Sweden in 1966 and toured their institutions with Bengt Nirje. He was impressed by the high quality of services available to people with developmental disabilities and encouraged Nirje to develop his ideas and put them on paper. Walsh then invited Nirje to visit the United States and speak on the new Principle of Normalization. One of the people who heard Nirje speak was Wolf Wolfensberger, who became a passionate advocate of deinstitutionalization and further developed the Principle of Normalization.