A History of AAC Devices – Part 1: The Pioneers
The use of alternative methods of communication can be traced back to ancient times when individuals who were deaf or could not speak developed a manual language. Manual languages were also used by First Nations to communicate with members of other groups (Glennen).
Mountain Chief demonstrates the Plains Indian Sign and Gesture language.
By the early 1950s, manual sign language had taken its place as a legitimate form of communication for people with ...