-
On October 8, 1809, the first telegraph was invented by David Alter and Andre-Marie Ampere. -
The first commercial system, and the most widely used needle telegraph -
in may 1837, Charles Wheatstone invented the first "electric telegraph"
-
on may 24 1844 Samuel demonstrates the morse code -
the telegraph sent its first message across the Atlantic ocean -
England to France telegraphs line fails because the insulation resistance was first impaired and then the insulation failed, creating short circuits.
-
Samuel Morse demonstrates the telegraph with the message, “What hath God wrought?”
-
the telegraph turned into a success