The document provides a history of services and treatment of people with developmental disabilities from the mid-1800s to the 1970s. It describes how in the 1800s, people with disabilities were often exhibited for profit and institutionalized in large facilities with poor conditions. In the early 1900s, the eugenics movement promoted sterilization and segregation of people with disabilities. By the 1950s, attitudes began shifting towards community placement and advocacy groups were formed, though institutionalization remained common. The 1960s saw further efforts to reduce institutionalization and increase community services.