On the afternoon of Oct. 9, 1876, Alexander Graham Bell was in Boston when he had a three-hour chat with his assistant and fellow inventor, Thomas Watson. It would not have been noteworthy — except ...

1876. MR. WATSON, COME HERE, I WANT YOU. THAT WAS THE VERY FIRST SENTENCE EVER UTTERED OVER A TELEPHONE CALL. AND IT HAPPENED RIGHT HERE AT THE CORNER OF AVENUE DE LAFAYETTE AND THE HARRISON AVENUE ...