Mayday

Always liked this show before that detailed the history of expressions. This particular one was traced in Our Daily Bread. It was created by Frederick Stanley Mockford in 1923 when he was senior radio officer in London's Croydon Airport. Then it had many flights to and from Le Bourget Airport in Paris. The SOS call came from the French "m'aidez" meaning "help me."

Mediation in a way is an SOS out of court. It also clears all barriers in communication.