The Telecommunications for the Deaf Inc. outlined these laws related to telecommunications and captioning. Another timeline is from the Described and Captioned Media Program website.
Telecommunications Access
Early Developments (1837 – 1956)
TTY Becomes Electronic (1971 – 1983)
TTY In The Computer Age (1984 – 1994)
TTY Network is Born (1964 – 1970)
Video Becomes A Reality (1995 – PRESENT)
Media & Information Technology
Early Efforts In Movie Captioning (1927 – 1968)
Early Efforts In TV Captioning (1970 – 1979)
Closed Captioning Begins (1980 – 1990)
Captioning Goes Beyond Television (1991 – 2001)
Captioning Industry Matures (2002 – 2007)
New World Of Captioning (2008 – PRESENT)
Policy and Advocacy
Telecommunications and Media Government Regulations
Telecommunications Relay Services
Disability Rights Movement
Section 504
Deregulation of Phone Industry
Deaf President Now
ADA TRS Rules Go Into Effect
Section 255 Regulations