Communications · Recorded milestone
Transcontinental telephone
Recorded year1915
Triode repeaters let AT&T complete a New York to San Francisco call.
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Led to
- Teletypesetter news by wireRecorded · 1928enables
- Telex business networkRecorded · 1933enables
- Wirephoto news picturesRecorded · 1935enables
- Programmable computerRecorded · 1941enables
- Transatlantic phone cableRecorded · 1956enables
- Desktop fax machineRecorded · 1966enables
- Emergency number 911Recorded · 1968enables
- Picturephone serviceRecorded · 1970enables
- Dial-up bulletin boardRecorded · 1978requires
- Do Not Call registryRecorded · 2003enables
Sources & evidence
Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.