Mayday! Mayday!
Here it is the first day of May, and that (plus all the lead in the D.C. water I drank last weekend) made me curious about the etymology of the term "mayday". As this ARRL page states, "mayday" has nothing to do with the month. Instead it probably originated as a mispronunciation of the French word "m'aidez," which means "help me."