In case you’re not a former sailor or ham radio operator, the above is not a typesetting snafu. Those are the dashes and dots (or “dits” and “dahs,” as telegraph operators often vocalize them) that ...

With over 160 years of history under its belt, Morse code is by far the oldest digital signaling system known to man. Originally developed for telegraph systems, [Samuel Morse’s] code has been sent ...