See History of Information.

1844 May 24 Samuel F.B. Morse sent the first telegraphic message over an experimental line from Washington D.C. to Baltimore; the message said: "What hath God wrought?" which is a verse from The Book of Numbers 23:23. Also see The Book of Job 38:35 where it says Canst thou send lightnings, that they may go and say unto thee, Here we are?

1858 Aug 16 the first transatlantic telegraph cable was an undersea cable running under the Atlantic Ocean used for telegraph communications was laid across the floor of the Atlantic from Telegraph Field, Foilhommerum Bay, Valentia Island in western Ireland to Heart's Content in eastern Newfoundland. The first communications occurred August 16, 1858, reducing the communication time between North America and Europe from ten days.

1894 May 10 Marconi sent a radio wave 3/4 mile, the first "wireless" transmission.

1897 Marconi Co sent the first ship-to-shore message 12 miles. 1899 Mar 3 the ship "East Goodwin" was saved after sending the distress signal "HELP". This system of HF radio for safety at sea communications as replaced globally by geostationary satellites with the launch of the INMARSAT system (International Marine Satellite) on the 1st of February 1982. [International Journal of Maritime History]

1969 October 29 The birth of the Internet. First message from computer to computer in different locations. UCLA student Charley Kline attempts to transmit the text "login" to a computer at the Stanford Research Institute over the first link on the ARPANET, which was the precursor to the modern Internet. After the letters "l" and "o" are sent the system crashed, making the first message ever sent on the Internet "lo" and the first crash of the system.