January 11, 1838
Samuel Morse publicly demonstrates his electric telegraph for the first time.

With his partner Alfred Vail, Morse demonstrated the electric telegraph at the Speedwell Ironworks in Morristown, New Jersey. The telegraph’s range was only two miles, and the first transmission was witnessed by a crowd of locals. The first message publicly transmitted said, “A patient waiter is no loser.”
Taken from:
This Day in History by Jim Daley; Copyright 2019; Publications International, Ltd.