An international distress signal used by ships and aircraft in life-threatening emergencies to call for immediate help.
Coined in 1923 by Frederick Stanley Mockford, a radio operator at Croydon Airport in London. It comes from the French phrase 'venez m'aider' (come help me), which Mockford chose because it sounded distinct over radio and was easy to understand internationally. The English pronunciation made it sound like 'May Day.'
The 'May Day' connection is pure coincidence—it wasn't named after the spring holiday at all, though it's funny how people assume they're related. It's one of the most ingenious linguistic solutions in history because it's recognized worldwide, transcending all language barriers in genuine emergencies.
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