A Simple Matter of Dots and Dashes




Samuel F.B. Morse receives a U.S. patent for his dot-dash telegraphy signals, known to the world as Morse Code. The code Morse devised in partnership with Alfred Vail uses a system of dots and dashes to represent letters and numbers.


It went into practical use in 1844, after he and Vail produced a working electromagnetic telegraph transmitter. Vail worked on various refinements to the transmitter before leaving the business altogether in 1848, feeling that he was being low-balled on his salary. Some scholars argue that it was Vail, not Morse, who actually came up with the dot-dash system. He did hold a small piece of Morse's patent but didn't get rich from it.



Regardless of who devised it, the original code was a little different than the one in use today. What we recognize as Morse code is actually an international variation of the original, or "American," code. The American code contained not only dots and dashes, but also spaces in five letters: C, O, R, Y and Z. (C, for example, was rendered like this: . . . )
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