A gigantic map of all the cool plaques in the world. A project of 99% Invisible.

The First Telephone

Birthplace Of The Telephone

Here, on June 2, 1875, Alexander Graham Bell and Thomas A. Watson first transmitted sound over wires. 

This successful experiment was completed in a fifth floor garret of what was then 109 Court Street and marked the beginning of world-wide telephone service. 

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