The term ‘Mayday’ is the internationally recognized radio telephone signal of distress. It is only used when a ship is in great danger and needs help immediately. The signal is transmitted on a wavelength of 2,182 kHz which is permanently monitored be rescue services on the shore. The use of the expression has a very straightforward explanation. It simply came from the French phrase’m’aidez’ which means ‘help me’. It was officially adopted internationally in 1927.
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