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"What hath God wrought" — First telegraph message, May 24, 1844
Samuel F. B. Morse, along with Leonard Gale and Alfred Vail, developed a practical electrical telegraph system. Morse also created the code that bears his name, though Vail contributed significantly to its design.
On May 24, 1844, Morse sent the first official telegraph message from Washington, D.C. to Baltimore. The message, "What hath God wrought," was chosen by Annie Ellsworth, daughter of the Patent Commissioner. It quotes Numbers 23:23 from the Bible.
European nations adopted a modified version of Morse's code, which became known as International Morse Code. It was simpler and more efficient than American Morse Code, and is still used today.
After multiple failed attempts, a permanent transatlantic telegraph cable connected Europe and North America in 1866. The first message from Queen Victoria to President Buchanan in 1858 took 16 hours to transmit at 0.1 words per minute.
The sinking of RMS Titanic highlighted the importance of wireless telegraphy. The distress calls sent by operators Jack Phillips and Harold Bride helped save over 700 lives. The disaster led to new international radio regulations.
On February 1, 1999, the Global Maritime Distress Safety System (GMDSS) officially replaced Morse code for maritime distress calls. The French Navy transmitted the final message: "Calling all. This is our last cry before our eternal silence."
Despite being "obsolete," Morse code persists. Amateur radio operators ("hams") still use it. It appears in emergency situations when other communication fails. Pilots learn it to identify navigation beacons. The code endures because of its simplicity and reliability.
Experienced telegraph operators developed distinctive "fists" - personal styles of keying recognizable to others. This was the first form of digital identity: operators across vast distances knew each other by the rhythm of their transmissions alone.