Timeline Thursday 15 September 1977

2nd Millennium › 20th Century › 1970s › 1977 › September 1977 › 15 September 1977

Thursday 15 September 1977

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All times in UTC · Dashed edge = started before, or continues beyond, this day

Events on Thursday 15 September 1977 1

1977 First optical fibre telephone call Voice transmitted by light in Turin The world's first telephone call transmitted over optical fibre cables took place in Turin, Italy on September 15, 1977, a breakthrough that would eventually revolutionise global telecommunications.

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