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jan 1, 1967 - Pub. L. 90-170-The Mental Retardation Amendments, which amended the Mental Retardation Facilities and Community Mental Health Centers Construction Act of 1963 (Pub. L. 88-164), provided physical and recreational programs and professional training, including the training or leadership personnel, supervisors, and researchers.

Added to timeline:

Date:

jan 1, 1967
Now
~ 57 years ago