SOS
The Morse code distress signal (· · · — — — · · ·) adopted at the 1906 International Radiotelegraph Convention; it was chosen as an easily recognizable sequence rather than as an abbreviation of any words.
The popular belief that SOS stands for "Save Our Souls" is a myth. SOS has no inherent meaning—it was chosen as a distress signal because in Morse code it becomes "··· ─── ···," which is concise and unmistakable.
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