You recognize that distress call, don’t you? Even children have a rough idea of what it means. And the fact that they do reveals something important about effective communication.
The “mayday” distress code was designed to be simple and easy to understand. It was created in 1923 by Frederick Mockford, an airport radio officer in London, after his boss challenged him to devise a distress code that would easily be understood by pilots and ground staff in an emergency.