25 apr 1935 anni - First Telephone call sent around the world. W.S. Gifford and T.G. Miller of the American Telephone and Telegraph Company spoke to each other from offices 50 feet away. While the call was being made, the call was transmitted through a telephone circuit that stretched 23,000 miles across the world.
Aggiunto al nastro di tempo:
Data:
25 apr 1935 anni
Adesso
~ 90 years ago