What is the most famous Morse code phrase?

The emergency code "SOS" was chosen not because it means anything, but because its Morse Code is very simple to remember and transmit: dot dot dot dash dash dash dot dot dot. This combination of letters was established in 1906 by the International Radiotelegraphic Convention in Berlin. It is still used as an international distress signal, especially by ships and aircraft. Many people have made up acronyms for SOS, such as "Save Our Souls," "Save Our Ship", "Sink Or Swim", "Send Out Sailors", "Save Our Skins", and "Send Out Someone", but these were invented after the fact. SOS is also the theme of the Song "Message in a Bottle" by The Police.