What does May Day have to do with the international distress call, „Mayday, Mayday, Mayday“? Nothing, as it turns out. The code was invented in 1923 by an airport radio officer in London. Challenged to come up with a word that would be easily understood by pilots and ground staff in case of an emergency, Frederick Mockford coined the word „mayday“ because it sounded like „m’aider,“ a shortened version of the French term for “ come and help me.“
If you want to know more about the history of the actual „May Day“ – 1st May, take a look at this interesting website: www.history.com/topics/holidays/history-of-may-day.